US20010013434A1 - Adherent Robot - Google Patents
Adherent Robot Download PDFInfo
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- US20010013434A1 US20010013434A1 US09/783,834 US78383401A US2001013434A1 US 20010013434 A1 US20010013434 A1 US 20010013434A1 US 78383401 A US78383401 A US 78383401A US 2001013434 A1 US2001013434 A1 US 2001013434A1
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- Prior art keywords
- robot
- vacuum
- vacuum cup
- lubricant
- port
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
- B62D57/02—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
- B62D57/024—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S180/00—Motor vehicles
- Y10S180/901—Devices for traversing vertical surfaces
Definitions
- This invention relates to remotely controlled devices.
- the remotely controlled devices are able to adhere to flat or curved surfaces, including significantly inclined and even backwardly leaning surfaces, and to maneuver on them to perform a variety of tasks.
- the invention includes the use of specially designed vacuum cups and a lubricant to facilitate sliding on the surface.
- Our invention is particularly designed to meet the needs of the shipbuilding industry, in that our robots are adept at climbing the sides of ships' hulls to inspect, clean (including scraping and/or removing of barnacles and ocean scum), paint, and weld them and to perform any other function one may wish to perform on a ship's hull from a readily manipulable, adherent robot, even on a very steep or even backwardly slanted surface. While my invention is particularly good for performing such tasks on ships' hulls, it may be used in any environment requiring such a remotely controlled device, whether or not the surface tends to curve backwardly and upwards. Various approaches have been proposed for accomplishing such tasks. See, for example, Perego's U.S. Pat. No. 3,973,711, describing a magnetic crawler for soldering.
- Raviv and Davidovitz propose a “vehicle with vacuum traction” which facilitates the sliding of a vacuum cup along a surface, while the vacuum is supporting a certain amount of weight, either by using a low surface friction material in the vacuum cup itself, particularly the rim portion, or by placing a flexible sheet of low surface friction material under the cup.
- a low surface friction material in the vacuum cup itself, particularly the rim portion, or by placing a flexible sheet of low surface friction material under the cup.
- the vehicle preferably has at least one, but frequently a plurality of vacuum cups, preferably specially designed as described herein, including means for feeding lubricant to the surface, and particularly to the surface occupied by the vacuum cup(s).
- a plurality of vacuum cups preferably specially designed as described herein, including means for feeding lubricant to the surface, and particularly to the surface occupied by the vacuum cup(s).
- my system does not require vacuum cup materials having low coefficients of friction, or a sheet of low friction plastic interposed between the vehicle and the surface, and is not unduly subject to wear.
- Our invention includes one or more vacuum cups comprising a flexible, (preferably shallow bell-shaped) body, a port therein for a vacuum source, at least substantially annular ridge, preferably two or more concentric ridges, projecting downwardly therefrom for intimately contacting a base surface, and at least one port for introducing lubricant to the interface of at least one of the ridges and the base surface.
- Our invention also includes a remotely controlled vehicle including a chassis, at least one vacuum cup as described above, and means for attaching a task-performing device to the chassis. Movement is provided by independently powered wheels which may be mounted separately or in modules together with the vacuum cups.
- the chassis may be rigid or more or less articulated or hinged. If it is articulated or hinged, the points of articulation or hinging may be powered or not. As will be seen below, a boomerang shape is preferred.
- Our invention is useful not only for performing remote tasks on the hulls of ships, but also for inspecting, cleaning and painting, for example, domes, water towers, chemical plants and reactors, storage tanks including large petroleum product storage tanks, bridges and difficultly accessible surfaces on the inside and outside of buildings and other structures.
- FIGS. 1 a, 1 b, and 1 c are side sectional views of our preferred vacuum cup assembly, showing the effect of the application of vacuum.
- FIGS. 1 d, 1 e, and 1 f are expanded views of portions of the vacuum cup as increasing vacuum is applied.
- FIGS. 2 a and 2 b are underneath and sectional views of a preferred form of our robot unit, showing placement of the vacuum cup assemblies and wheel modules.
- FIG. 3 is a side view of our robot in motion on a ship's hull, performing the task of painting.
- FIGS. 4 a - 4 d represent a sequence of positions of a preferred robot approaching a ship hull and beginning its ascent to a position for use.
- FIGS. 5 a and 5 b illustrate a vacuum cup assembly used in the invention.
- FIGS. 6 and 7 show caravans of robots for performing sequential functions on a work surface.
- FIG. 8 is a section of part of a preferred design of our invention, in which opposiing compressed springs assure that the vacuum cup assembly and the body of the robot maintain a stable relationship.
- the vacuum cup assembly comprises a vacuum cup 1 made of a flexible, resilient material and a tubular central stem 2 in which is mounted a filter 3 .
- the outer end 4 of stem 2 is adapted to be attached to a vacuum supply.
- On the bottom of the vacuum cup 1 is a series of (preferably more than one, as shown) concentric ridges 5 , 6 , 7 , 8 , and 9 .
- Near the outer edge of cup 1 is a port 10 for lubricant supply, adapted for attachment to a tube or the like for supplying liquid lubricant to the underside of the vacuum cup 1 .
- lubricant is caused to flow, from a source not shown, through port 10 into space 11 defined by outermost ridge 9 and the edge 12 of the vacuum cup 1 .
- Vacuum may be applied before the beginning of lubricant flow (preferably gradually if it is before) or after the flow begins.
- the vacuum cup 1 begins to flatten and adhere to the surface.
- lubricant is present in all the spaces 30 . 31 , 32 , and 33 between the ridges 5 , 6 , 7 , 8 , and 9 .
- the vacuum cup assembly adheres tenaciously to the surface 13 but, because of the presence of the lubricant on surface 13 , between the ridges 5 - 9 and underneath them, the vacuum cup assembly can slide on surface 13 relatively easily.
- Filter 3 is not essential to the operation of the vacuum cup assembly but is preferred because the vacuum continually draws stray particles from the surface and the air, as well as some lubricant, into the vacuum system. Filter 3 will minimize down time caused by fouling of the vacuum system.
- a lubricant source near the edge of vacuum cup 1 is preferred, particularly after startup and the unit is proceeding more or less in a single direction, it is not essential that the lubricant contact the bottom surface of the vacuum cup 1 at an outermost point.
- Port 10 may be located at a point nearer the center of the vacuum cup 1 , as the flow of lubricant is to be coordinated with the application of vacuum and the variable directional movement of the robot as a whole, so that a dry portion of vacuum cup 1 will not unnecessarily be forced to move against the work surface. More than one lubricant outlet such as port 10 may be used.
- the coordination of vacuum, lubricant flow, and power and direction to the wheels see the discussion with respect to FIGS.
- the body of vacuum cup 1 is generally conical and shallow, more or less as depicted.
- the sliding friction, F S changes as a function of the reaction force due to the suction cup, R SC .
- the reaction force R SC is the tendency of the suction cup to release itself, primarily due to its resilience, from the work surface, but it is also influenced by the weight of the robot, the strength of the vacuum, and the inner and outer areas of the suction cup. Generally the reaction force conforms to the following relationship:
- R SC p a ( A o ) ⁇ N ⁇ p v ( A I )
- R SC is the reaction force due to the suction cup characteristics
- p v is the vacuum pressure applied to the suction cup
- p a is the atmospheric pressure acting on the outside of the suction cup
- a o is the outside area of the suction cup
- a I is the inside area of the suction cup
- N is the normal force acting or load applied to the suction cup, usually the vehicle weight.
- the main variable available for control of a single vacuum cup is the vacuum pressure applied, which generally will be maintained sufficient to overcome the forces tending to release the vacuum cup; however, this will not always be the case where there is more than one vacuum cup assembly, and the microprocessor should be programmed to manipulate the robot accordingly.
- the sliding friction, F S varies with the number of concentric ridges actually in contact with the working surface under a given vacuum pressure, as well as the viscosity and lubricity of the lubricant, the frictional characteristics of the working surface and the composition (frictional characteristics) of the vacuum cup body.
- Sliding function F S is used as a factor in determining the motive power delivered to the wheels.
- robot body 14 is shown in its preferred boomerang shape, viewed from the underside.
- body 14 On the body 14 are vacuum cup assemblies 15 and wheel assemblies 16 .
- Utility socket 17 located on the top surface of body 14 , is shown as a dotted line; utility socket 17 is for placement of various kinds of tools, welders, spray tubes or nozzles, dispensers, and the like. They may be in the form of extensible arms so their functions may be performed on portions of the underlying surface somewhat remote from the body 14 .
- Body 14 may also have linking sites 18 for linking the robot bodies together if desired.
- the boomerang shape is preferred because it enables us to place wheels and vacuum cups in trailing and spaced-apart relation to a lead module 19 of a vacuum cup assembly 15 and wheels 16 .
- the basic configuration of the lead module 19 and the (at least two) trailing modules 20 and 21 in our preferred configuration is more or less triangular.
- the modules form the general shape of an equilateral triangle—that is, the three modules 19 , 20 , and 21 are at the apexes of a triangle, so that as the lead module 19 ascends an inclined or backwardly leaning surface, steering is more controllable than it would be if the rear of the robot were not in contact with the work surface at spaced apart points.
- Vacuum cup assembly 15 a is seen to have articulating means 22 for application to a surface which does not conform to the convex curve of body 14 .
- Wheel assemblies 16 (not shown in FIG. 2 b ) can be extended also so the wheels 19 can reach and make contact on the surface.
- FIG. 3 our robot is seen to be in motion, carrying out a painting task.
- the robot is on a hull surface 100 , traveling upwards.
- Two vacuum cup assemblies 101 are shown, fully applied—that is, a full vacuum is drawn on them through vacuum lines 102 which may lead to an optional manifold or chamber 103 .
- Vacuum pump 122 is shown to be mounted on the robot body, connected to chamber 103 , but chamber 103 may alternatively or in addition be connected by an air line to a remote vacuum source not shown.
- Lubricant is intermittently or continuously applied to the advancing sides of vacuum cup assemblies 101 by pump 106 through ducts 107 to form a film between the work surface and the vacuum cup, the ultimate lubricant source being a reservoir not shown connected to pump 106 through flexible tube 109 .
- lubricant is fed through ducts 107 , it spreads underneath the vacuum cup assemblies 101 , enabling the vacuum cup assemblies 101 to slide freely on surface 100 when motive force is applied through wheels 110 .
- Wheels 110 are urged outward by springs 111 so they will contact surface 100 even if it is convex as the surface 100 may be. The outward urging of the wheels is in conflict with the action of the vacuum cups, but both are controlled appropriately by a microprocessor not shown.
- Driving force is applied to wheels 110 by motors 112 .
- Motors 112 can apply variable turning force to wheels 110 and also can turn the wheels 110 to reorient the robot's direction of movement.
- Each wheel may have its own controller, but a single controller may be used for all wheels on the robot.
- the controller may receive directions by flexible wire or by radio from a remote microprocesor.
- a berth in the form of utility socket 114 is equipped with a paint reservoir and pump containing paint tube 116 leading to spray nozzle 117 for spraying paint behind the robot as it moves.
- the orientation of turret 115 can be controlled by a motor not shown in the utility socket 114 .
- the motor may in turn be controlled by its own controller, not shown, or a central controller located on the robot which may control all functions of the robot—that is, the orientation and powering of wheels 110 , variations in vacuum strength to each of the vacuum assemblies, the flow of lubricant to each of the vacuum assemblies, the vacuum source 104 , and paint pump 118 , as well as the position of turret 115 .
- FIGS. 4 a - 4 d this series of figures is designed to show how my robot can approach a backwardly inclined surface such as a ship's hull and begin to ascend it to perform a task.
- the robot 14 is moved from right to left, as depicted, by locomotion provided by wheels 40 contacting horizontal surface or floor 41 ; the wheels 40 are controlled to direct the robot in the leftward direction by an operator and microprocessor not shown, through radio signals received by antenna 42 and/or wires not shown.
- the signals are further processed on the robot by a receiver not shown and utilized to manipulate the wheels 40 —that is to both steer and power them.
- FIG. 4 a the robot 14 is moved from right to left, as depicted, by locomotion provided by wheels 40 contacting horizontal surface or floor 41 ; the wheels 40 are controlled to direct the robot in the leftward direction by an operator and microprocessor not shown, through radio signals received by antenna 42 and/or wires not shown.
- the signals are further processed on the robot by a receiver not shown and utilized
- module 44 containing wheels and a vacuum cup assembly on the upper left of robot 14 has made contact with the ship's hull 43 .
- the microprocessor and/or one or more algorithms in a suitable form detects the resistance caused by ship's hull 43 and begins rotating the wheels in contact with ship's hull 43 , at the same time also activating the vacuum in the vacuum cup assembly including the step of feeding lubricant to it.
- the module 44 is able to articulate or tilt to accommodate the angle of ship's hull 43 or other surface.
- wheels 40 While the wheels in module 44 tend to propel robot 14 upward and backward, following the contour of ship's hull 43 , wheels 40 will cease to propel the robot 14 in a leftward direction, as this may tend to jam the robot 14 into the acute angle formed by ship's hull 43 and horizontal surface 41 . If the angle is significantly less than that shown, wheels 40 on horizontal surface 41 must be free to rotate in a backwards direction while robot 14 makes its initial upward move on the ship's hull 43 .
- robot 14 has become adhered to ship's hull 43 by at least two vacuum cup assemblies.
- the wheels on horizontal surface 41 may be reactivated to assist in pushing robot 14 leftward, if they had been inactivated.
- the robot 14 becomes oriented soon as shown in FIG. 4 c, with vacuum cup assemblies and wheel sets 46 and 47 in contact with ship's hull 43 .
- the workings of these sets of wheels and vacuum assemblies will tend to lift the entire robot 14 from horizontal surface 41 ; however, wheel set 45 at the back corner of robot 14 should continue to push to the left in order to assure orientation of robot 14 on ship's hull 43 .
- module 46 of wheels and a vacuum cup assembly (the uppermost set in contact with the ship's hull) should be released and wheel set and vacuum assembly module 47 (the other ones in contact with the ship's hull) should be directed to slide backwards (that is, in a downward direction on the ship's hull) as the lower end of the robot 14 proceeds leftward and orients robot 14 to an orientation permitting adherence of a maximum number of vacuum cup assemblies and wheel assemblies, as shown in FIG. 4 d.
- This entire procedure may be assisted by a sensor for detecting contact with ship's hull 43 . After the position of FIG. 4 d is attained, the robot will be ready for any of numerous tasks including ones requiring carrying significant weights of equipment.
- FIGS. 5 a and 5 b wheels 60 are seen to be driven by motor/gear assembly 61 , with a spring 62 between to urge the wheels toward the surface 63 .
- a module chassis 64 permits appropriate orientation and alignment of vacuum cup 65 , and the individual vacuum pump and motor 66 .
- FIG. 5 b is a view from underneath.
- FIG. 6 illustrates the use of linkages 70 , 71 , 72 , 73 , 74 , and 75 , to connect three robot bodies 77 , 78 , and 79 in a caravan or train so that sequential tasks may be performed.
- robot body 77 distributes cleaning fluid through spray nozzle 80 onto the work surface
- the following robot body 78 employs a brush 81 to abrade the work surface having been spread with cleaning fluid
- the last robot body 79 sprays a rinse solution onto the work surface through nozzle 82 after the brush 81 has assisted the cleaning solution.
- vacuum cup 1 is attached to stem 2 which carries vacuum line 102 through to the vacuum cup 1 .
- Filter 3 is placed in the vacuum conduit as shown, but may be placed further up in the stem assembly.
- Lower housing 201 and upper housing 203 hold compressed springs 202 and 204 , which may work against each other to provide flexibility and stability to the position of the vacuum cup 1 to the robot body 14 .
- Stem 2 is able to move vertically through body 14 .
- vacuum line 102 are shown a vacuum pump 122 , check valve 200 , and vacuum chamber 103 . Additional valves may be placed in vacuum line 102 between chamber 103 and stem 2 , or elsewhere.
- Filter 3 minimizes the fluid picked up in vacuum line 102 and guards against solid particles being sucked up into the mechanism.
- Vacuum chamber 103 prevents abrupt changes in the strength of the vacuum reaching the vacuum cup 1 , which could lead to loss of adhesion to the surface.
- the preferred construction has a plurality of vacuum cups 1 , and as each may be subject to different tensions, springs 202 and 204 are useful to stabilize the unit and inhibit counterproductive forces between vacuum assemblies. It will be understood that the level of body 14 with respect to the working surface may be slightly different from vacuum cup to vacuum cup.
- Fatty acids, glycerols, triglycerols, graphite lubricant, vegetable and mineral oil, and petroleum oils may be used.
- the lubricant will be nonflammable and readily removed from the work surface by water.
Abstract
A robot capable of moving against gravity uses at least one vacuum cup assembly having means for applying a lubricant on the working surface so the cup may slide on the surface as the robot is maneuvered with the aid of powered wheels. The wheels and vacuum cup assemblies are coordinated to move on varied surfaces. The robot module may be equipped with various task-performing assemblies, and may be employed in caravans, trains, or separately in swarms. The vacuum cup assemblies include a pair of springs working against each other to provide stability and flexibility at the point of attachment to the body of the robot.
Description
- This application is a continuation-in-part of copending application Ser. No. 09/505,409 filed Feb. 16, 2000.
- This invention relates to remotely controlled devices. The remotely controlled devices are able to adhere to flat or curved surfaces, including significantly inclined and even backwardly leaning surfaces, and to maneuver on them to perform a variety of tasks. The invention includes the use of specially designed vacuum cups and a lubricant to facilitate sliding on the surface.
- Our invention is particularly designed to meet the needs of the shipbuilding industry, in that our robots are adept at climbing the sides of ships' hulls to inspect, clean (including scraping and/or removing of barnacles and ocean scum), paint, and weld them and to perform any other function one may wish to perform on a ship's hull from a readily manipulable, adherent robot, even on a very steep or even backwardly slanted surface. While my invention is particularly good for performing such tasks on ships' hulls, it may be used in any environment requiring such a remotely controlled device, whether or not the surface tends to curve backwardly and upwards. Various approaches have been proposed for accomplishing such tasks. See, for example, Perego's U.S. Pat. No. 3,973,711, describing a magnetic crawler for soldering.
- It has been known to make and use remotely controlled devices which adhere to a surface by vacuum. See, for example, Lisec's U.S. Pat. No. 4,667,555 disclosing such a device for cutting glass, the more versatile traveling device of Urakami described in U.S. Pat. No. 4,926,957, and Ochiai's U.S. Pat. No. 4,785,902, showing suction cups which can be slightly tilted to maneuver the device which carries them. The reader may also be interested in U.S. Pat. Nos. 4,817,653, 5,293,887, and 4,828,059, also generally within the field.
- In U.S. Pat. No. 4,971,591, Raviv and Davidovitz propose a “vehicle with vacuum traction” which facilitates the sliding of a vacuum cup along a surface, while the vacuum is supporting a certain amount of weight, either by using a low surface friction material in the vacuum cup itself, particularly the rim portion, or by placing a flexible sheet of low surface friction material under the cup. One cannot rely on the low surface friction of such a material for long, however, under industrial use conditions.
- See also the device of Lange and Kerr described in U.S. Pat. No. 5,890,250. They use a “grabber/slider vacuum cup” in a cleaning system which sprays cleaning and rinsing liquids on the surface. Wolfe et al, in U.S. Pat. No. 5,429,009, coordinate the movement and activation of several vacuum cups to manipulate a robot on a surface.
- Such prior art machines and devices are generally not very effective on rough or slimy surfaces. The art is in need of a reliable, versatile robot capable of performing various tasks on inhospitable and steeply inclined surfaces.
- We have designed a robotic vehicle for use on steep inclines and even upside down, which will maneuver and move easily over the surface, and is capable of performing all sorts of tasks. The vehicle preferably has at least one, but frequently a plurality of vacuum cups, preferably specially designed as described herein, including means for feeding lubricant to the surface, and particularly to the surface occupied by the vacuum cup(s). Unlike the Raviv et al patent discussed above, my system does not require vacuum cup materials having low coefficients of friction, or a sheet of low friction plastic interposed between the vehicle and the surface, and is not unduly subject to wear.
- Our invention includes one or more vacuum cups comprising a flexible, (preferably shallow bell-shaped) body, a port therein for a vacuum source, at least substantially annular ridge, preferably two or more concentric ridges, projecting downwardly therefrom for intimately contacting a base surface, and at least one port for introducing lubricant to the interface of at least one of the ridges and the base surface.
- Our invention also includes a remotely controlled vehicle including a chassis, at least one vacuum cup as described above, and means for attaching a task-performing device to the chassis. Movement is provided by independently powered wheels which may be mounted separately or in modules together with the vacuum cups. The chassis may be rigid or more or less articulated or hinged. If it is articulated or hinged, the points of articulation or hinging may be powered or not. As will be seen below, a boomerang shape is preferred.
- Our invention is useful not only for performing remote tasks on the hulls of ships, but also for inspecting, cleaning and painting, for example, domes, water towers, chemical plants and reactors, storage tanks including large petroleum product storage tanks, bridges and difficultly accessible surfaces on the inside and outside of buildings and other structures.
- FIGS. 1a, 1 b, and 1 c are side sectional views of our preferred vacuum cup assembly, showing the effect of the application of vacuum. FIGS. 1d, 1 e, and 1 f are expanded views of portions of the vacuum cup as increasing vacuum is applied.
- FIGS. 2a and 2 b are underneath and sectional views of a preferred form of our robot unit, showing placement of the vacuum cup assemblies and wheel modules.
- FIG. 3 is a side view of our robot in motion on a ship's hull, performing the task of painting.
- FIGS. 4a-4 d represent a sequence of positions of a preferred robot approaching a ship hull and beginning its ascent to a position for use.
- FIGS. 5a and 5 b illustrate a vacuum cup assembly used in the invention.
- FIGS. 6 and 7 show caravans of robots for performing sequential functions on a work surface.
- FIG. 8 is a section of part of a preferred design of our invention, in which opposiing compressed springs assure that the vacuum cup assembly and the body of the robot maintain a stable relationship.
- Referring first to FIGS. 1a and 1 d, the vacuum cup assembly comprises a
vacuum cup 1 made of a flexible, resilient material and a tubularcentral stem 2 in which is mounted afilter 3. Theouter end 4 ofstem 2 is adapted to be attached to a vacuum supply. On the bottom of thevacuum cup 1 is a series of (preferably more than one, as shown)concentric ridges cup 1 is aport 10 for lubricant supply, adapted for attachment to a tube or the like for supplying liquid lubricant to the underside of thevacuum cup 1. In the initial stage of application, lubricant is caused to flow, from a source not shown, throughport 10 intospace 11 defined byoutermost ridge 9 and theedge 12 of thevacuum cup 1. - Vacuum may be applied before the beginning of lubricant flow (preferably gradually if it is before) or after the flow begins. Referring to FIGS. 1b and 1 e, with the application of vacuum, the
vacuum cup 1 begins to flatten and adhere to the surface. As lubricant continues to flow, it accumulates to a degree inspace 11 and is drawn into the space betweenridges ridge 9. With the full application of vacuum as depicted in FIGS. 1c and 1 f, lubricant is present in all thespaces 30. 31, 32, and 33 between theridges surface 13 but, because of the presence of the lubricant onsurface 13, between the ridges 5-9 and underneath them, the vacuum cup assembly can slide onsurface 13 relatively easily.Filter 3 is not essential to the operation of the vacuum cup assembly but is preferred because the vacuum continually draws stray particles from the surface and the air, as well as some lubricant, into the vacuum system.Filter 3 will minimize down time caused by fouling of the vacuum system. In a different preferred configuration, we do not use a filter in the vacuum cup assembly, but pass the vacuum air through a device for removing lubricant from the air and recycling it; this may be done either in individual units for each vacuum cup assembly or, preferably, in a central area where the lubricant is collected. - While a lubricant source near the edge of
vacuum cup 1 is preferred, particularly after startup and the unit is proceeding more or less in a single direction, it is not essential that the lubricant contact the bottom surface of thevacuum cup 1 at an outermost point.Port 10 may be located at a point nearer the center of thevacuum cup 1, as the flow of lubricant is to be coordinated with the application of vacuum and the variable directional movement of the robot as a whole, so that a dry portion ofvacuum cup 1 will not unnecessarily be forced to move against the work surface. More than one lubricant outlet such asport 10 may be used. The coordination of vacuum, lubricant flow, and power and direction to the wheels (see the discussion with respect to FIGS. 2a and 2 b) may be accomplished more or less automatically by appropriately written software or by manual input to the systems which operate each. Any appropriate software and/or control system capable of such coordination may be used. Preferably, the body ofvacuum cup 1 is generally conical and shallow, more or less as depicted. As a major objective of our invention is to move the robot while the vacuum cup assembly or assemblies provide adherence to a work surface, it is important to understand the relationship of certain variables relating to the suction cups. For example, the sliding friction, FS, changes as a function of the reaction force due to the suction cup, RSC. The reaction force RSC is the tendency of the suction cup to release itself, primarily due to its resilience, from the work surface, but it is also influenced by the weight of the robot, the strength of the vacuum, and the inner and outer areas of the suction cup. Generally the reaction force conforms to the following relationship: - ΣF hor. =R SC +N+p v(A I)−p a(A o)=0
- R SC =p a(A o)−N−p v(A I)
- where RSC is the reaction force due to the suction cup characteristics, pv is the vacuum pressure applied to the suction cup, pa is the atmospheric pressure acting on the outside of the suction cup, Ao is the outside area of the suction cup, AI is the inside area of the suction cup, and N is the normal force acting or load applied to the suction cup, usually the vehicle weight. The main variable available for control of a single vacuum cup is the vacuum pressure applied, which generally will be maintained sufficient to overcome the forces tending to release the vacuum cup; however, this will not always be the case where there is more than one vacuum cup assembly, and the microprocessor should be programmed to manipulate the robot accordingly. The sliding friction, FS varies with the number of concentric ridges actually in contact with the working surface under a given vacuum pressure, as well as the viscosity and lubricity of the lubricant, the frictional characteristics of the working surface and the composition (frictional characteristics) of the vacuum cup body. Sliding function FS is used as a factor in determining the motive power delivered to the wheels.
- Referring now to FIG. 2a,
robot body 14 is shown in its preferred boomerang shape, viewed from the underside. On thebody 14 arevacuum cup assemblies 15 andwheel assemblies 16.Utility socket 17, located on the top surface ofbody 14, is shown as a dotted line;utility socket 17 is for placement of various kinds of tools, welders, spray tubes or nozzles, dispensers, and the like. They may be in the form of extensible arms so their functions may be performed on portions of the underlying surface somewhat remote from thebody 14.Body 14 may also have linkingsites 18 for linking the robot bodies together if desired. The boomerang shape is preferred because it enables us to place wheels and vacuum cups in trailing and spaced-apart relation to alead module 19 of avacuum cup assembly 15 andwheels 16. Thus the basic configuration of thelead module 19 and the (at least two) trailingmodules modules lead module 19 ascends an inclined or backwardly leaning surface, steering is more controllable than it would be if the rear of the robot were not in contact with the work surface at spaced apart points. It will be appreciated that this stabilizing effect will be facilitated when the robot moves in any direction, and that the relative positions of the working parts—the wheels and vacuum cup assemblies—are significant. Any frame shape (boomerang, triangle, delta or other) for the robot body which accomplishes the desired spacing and achieves the desired stability will suffice. We intend to include in our invention any device for articulation of the body (a body of any shape), such as one or more hinges or motorized hinges which may divide the body into parts. The flexing of the hinges may be controlled remotely along with the other functions of the robot.Modules wheels 16 may also be turned independently in any direction. - As seen in FIG. 2b, the under side of
body 14 is shown in a preferred convex form, but may assume other shapes depending on the kinds of surfaces on which the robot will be used.Vacuum cup assembly 15 a is seen to have articulatingmeans 22 for application to a surface which does not conform to the convex curve ofbody 14. Wheel assemblies 16 (not shown in FIG. 2b) can be extended also so thewheels 19 can reach and make contact on the surface. - In FIG. 3, our robot is seen to be in motion, carrying out a painting task. The robot is on a
hull surface 100, traveling upwards. Twovacuum cup assemblies 101 are shown, fully applied—that is, a full vacuum is drawn on them throughvacuum lines 102 which may lead to an optional manifold orchamber 103.Vacuum pump 122 is shown to be mounted on the robot body, connected tochamber 103, butchamber 103 may alternatively or in addition be connected by an air line to a remote vacuum source not shown. Lubricant is intermittently or continuously applied to the advancing sides ofvacuum cup assemblies 101 bypump 106 throughducts 107 to form a film between the work surface and the vacuum cup, the ultimate lubricant source being a reservoir not shown connected to pump 106 throughflexible tube 109. As lubricant is fed throughducts 107, it spreads underneath thevacuum cup assemblies 101, enabling thevacuum cup assemblies 101 to slide freely onsurface 100 when motive force is applied throughwheels 110.Wheels 110 are urged outward bysprings 111 so they will contactsurface 100 even if it is convex as thesurface 100 may be. The outward urging of the wheels is in conflict with the action of the vacuum cups, but both are controlled appropriately by a microprocessor not shown. Driving force is applied towheels 110 bymotors 112.Motors 112 can apply variable turning force towheels 110 and also can turn thewheels 110 to reorient the robot's direction of movement. Each wheel may have its own controller, but a single controller may be used for all wheels on the robot. The controller may receive directions by flexible wire or by radio from a remote microprocesor. As the purpose of the illustrated excursion is to apply paint to a ship's hull (surface 100), a berth in the form ofutility socket 114 is equipped with a paint reservoir and pump containingpaint tube 116 leading tospray nozzle 117 for spraying paint behind the robot as it moves. The orientation ofturret 115 can be controlled by a motor not shown in theutility socket 114. The motor may in turn be controlled by its own controller, not shown, or a central controller located on the robot which may control all functions of the robot—that is, the orientation and powering ofwheels 110, variations in vacuum strength to each of the vacuum assemblies, the flow of lubricant to each of the vacuum assemblies, thevacuum source 104, andpaint pump 118, as well as the position ofturret 115. - It should be noted that while
vacuum cup assemblies 101 adhere to surface 100 with a significant tenaciousness as a function of the applied vacuum,wheels 110 must apply traction to move the robot forward, and accordingly the springloaded downward force onwheels 101 is balanced so as not to overcome the vacuum applied in thevacuum cup assemblies 101. This is made possible not only by the programmed microprocessor, but by the use of our lubricant, which permits excellent adhesion by vacuum while also facilitating the sliding of the vacuum cup assemblies on thelubricated surface 100. - Referring now to FIGS. 4a-4 d, this series of figures is designed to show how my robot can approach a backwardly inclined surface such as a ship's hull and begin to ascend it to perform a task. In FIG. 4a, the
robot 14 is moved from right to left, as depicted, by locomotion provided bywheels 40 contacting horizontal surface orfloor 41; thewheels 40 are controlled to direct the robot in the leftward direction by an operator and microprocessor not shown, through radio signals received byantenna 42 and/or wires not shown. The signals are further processed on the robot by a receiver not shown and utilized to manipulate thewheels 40—that is to both steer and power them. At the point illustrated in FIG. 4a,module 44 containing wheels and a vacuum cup assembly on the upper left ofrobot 14 has made contact with the ship'shull 43. The microprocessor and/or one or more algorithms in a suitable form detects the resistance caused by ship'shull 43 and begins rotating the wheels in contact with ship'shull 43, at the same time also activating the vacuum in the vacuum cup assembly including the step of feeding lubricant to it. Themodule 44 is able to articulate or tilt to accommodate the angle of ship'shull 43 or other surface. While the wheels inmodule 44 tend to propelrobot 14 upward and backward, following the contour of ship'shull 43,wheels 40 will cease to propel therobot 14 in a leftward direction, as this may tend to jam therobot 14 into the acute angle formed by ship'shull 43 andhorizontal surface 41. If the angle is significantly less than that shown,wheels 40 onhorizontal surface 41 must be free to rotate in a backwards direction whilerobot 14 makes its initial upward move on the ship'shull 43. - At the position of FIG. 4b,
robot 14 has become adhered to ship'shull 43 by at least two vacuum cup assemblies. The wheels onhorizontal surface 41 may be reactivated to assist in pushingrobot 14 leftward, if they had been inactivated. Therobot 14 becomes oriented soon as shown in FIG. 4c, with vacuum cup assemblies and wheel sets 46 and 47 in contact with ship'shull 43. The workings of these sets of wheels and vacuum assemblies will tend to lift theentire robot 14 fromhorizontal surface 41; however, wheel set 45 at the back corner ofrobot 14 should continue to push to the left in order to assure orientation ofrobot 14 on ship'shull 43. This means thatmodule 46 of wheels and a vacuum cup assembly (the uppermost set in contact with the ship's hull) should be released and wheel set and vacuum assembly module 47 (the other ones in contact with the ship's hull) should be directed to slide backwards (that is, in a downward direction on the ship's hull) as the lower end of therobot 14 proceeds leftward and orientsrobot 14 to an orientation permitting adherence of a maximum number of vacuum cup assemblies and wheel assemblies, as shown in FIG. 4d. This entire procedure may be assisted by a sensor for detecting contact with ship'shull 43. After the position of FIG. 4d is attained, the robot will be ready for any of numerous tasks including ones requiring carrying significant weights of equipment. - In FIGS. 5a and 5 b,
wheels 60 are seen to be driven by motor/gear assembly 61, with aspring 62 between to urge the wheels toward thesurface 63. Amodule chassis 64 permits appropriate orientation and alignment ofvacuum cup 65, and the individual vacuum pump andmotor 66. FIG. 5b is a view from underneath. FIG. 6 illustrates the use oflinkages robot bodies spray nozzle 80 onto the work surface, the followingrobot body 78 employs abrush 81 to abrade the work surface having been spread with cleaning fluid, and thelast robot body 79 sprays a rinse solution onto the work surface throughnozzle 82 after thebrush 81 has assisted the cleaning solution. - Referring now to FIG. 8,
vacuum cup 1 is attached to stem 2 which carriesvacuum line 102 through to thevacuum cup 1.Filter 3 is placed in the vacuum conduit as shown, but may be placed further up in the stem assembly.Lower housing 201 andupper housing 203 hold compressedsprings vacuum cup 1 to therobot body 14.Stem 2 is able to move vertically throughbody 14. Invacuum line 102 are shown avacuum pump 122,check valve 200, andvacuum chamber 103. Additional valves may be placed invacuum line 102 betweenchamber 103 andstem 2, or elsewhere.Filter 3 minimizes the fluid picked up invacuum line 102 and guards against solid particles being sucked up into the mechanism.Vacuum chamber 103 prevents abrupt changes in the strength of the vacuum reaching thevacuum cup 1, which could lead to loss of adhesion to the surface. As indicated above, the preferred construction has a plurality ofvacuum cups 1, and as each may be subject to different tensions, springs 202 and 204 are useful to stabilize the unit and inhibit counterproductive forces between vacuum assemblies. It will be understood that the level ofbody 14 with respect to the working surface may be slightly different from vacuum cup to vacuum cup. - We may use any suitable liquid lubricant which may be fed through the vacuum cup as shown and illustrated, to spread on the work surface, for the vacuum cups to contact. Fatty acids, glycerols, triglycerols, graphite lubricant, vegetable and mineral oil, and petroleum oils may be used. Preferably the lubricant will be nonflammable and readily removed from the work surface by water.
Claims (33)
1. A vacuum cup assembly including a vacuum cup comprising a stem member and a flexible, substantially conical body, a port in said body for a vacuum source, at least two annular ridges projecting downwardly from said body for intimately contacting a base surface, and at least one port for introducing lubricant to an interface of at least one of said ridges and the base surface.
2. A vacuum cup assembly of including a filter in said vacuum source port.
claim 1
3. A vacuum cup assembly of wherein said flexible body has at least three annular ridges, said annular ridges being substantially concentric.
claim 1
4. A vacuum cup assembly of mounted on a chassis including means for attaching a task-performing device to said chassis.
claim 1
5. A vacuum cup assembly of including powered wheels for moving said chassis.
claim 4
6. A vacuum cup assembly of wherein said wheels are powered by motors on said vehicle and are capable of being independently steered.
claim 5
7. Method of manipulating a robot on a working surface comprising drawing a vacuum on at least one vacuum cup having a flexible surface for adhering to a working surface, feeding a lubricant to said flexible surface to form a film between said flexible surface and said working surface, and activating a locomotion means to propel said robot in a desired direction.
8. Method of wherein said locomotion means are wheels.
claim 7
9. Method of wherein the reaction force RSC of said vacuum cup is determined at least partly by the relationship
claim 7
R SC =p a(A o)−N−p v(A I)
where RSC is the reaction force, pv is the vacuum pressure applied to the suction cup, pa is the atmospheric pressure acting on the outside of the suction cup, Ao is the outside area of the suction cup, AI is the inside area of the suction cup, and N is the normal force acting or load applied to the suction cup, usually the vehicle weight.
10. A robot comprising at least one robot module comprising (a) a locomotion section comprising locomotion means for moving said module on a work surface, and (b) a slidable adherence section for adhering said module to a work surface while said module is moving thereon.
11. A robot of wherein said locomotion section comprises at least one wheel, a motor therefor, and means for steering said wheel.
claim 10
12. A robot of wherein said slidable adherence section comprises a vacuum cup having a top side and an underside, a lubricant port therein, and a duct for delivering lubricant through said duct to the underside of said vacuum cup.
claim 10
13. A robot of wherein said slidable adherence section comprises a vacuum cup having a stem member, a flexible, substantially conical body, a port in said body for a vacuum source, at least two substantially concentric annular ridges projecting downwardly therefrom for intimately contacting a base surface, and at least one port for introducing lubricant to the interface of at least one of said ridges and the base surface.
claim 10
14. A robot of including at least one spring for urging said wheel toward said work surface.
claim 10
15. A robot of including a berth for a specific task-performing device.
claim 10
16. A robot of including an antenna for receiving control signals.
claim 10
17. A robot of including a flexible tube for connection to a remote source of vacuum.
claim 10
18. A robot of including a flexible wire for connection to a remote source of electric power.
claim 10
19. A robot of including a flexible tube for connection to a remote source of lubricant.
claim 10
20. A robot of including a microprocessor for controlling at least one function on said robot.
claim 10
21. A robot comprising at least one robot module comprising (a) a locomotion section comprising locomotion means for moving said module on a work surface, (b) a robot body, and (c) a slidable adherence section for adhering said module to a work surface while said module is moving thereon, said slidable adherence section including a pair of opposing springs for flexibly stabilizing the distance of said robot body from a working surface.
22. A robot of wherein said opposing springs are on opposite sides of said robot body.
claim 21
23. A robot of wherein said slidable adherence section comprises at least one vacuum cup.
claim 21
24. A robot of wherein said slidable adherence section comprises at least two vacuum cups.
claim 21
25. A robot of including a stem on said vacuum cup for holding a passage for a source of vacuum to said vacuum cup, said springs are coil springs, and said stem passes through said opposing springs.
claim 22
26. A robot of wherein said locomotion section comprises at least one wheel turned by an electric motor.
claim 21
27. A robot of wherein said vacuum cup comprises a stem member and a flexible, substantially conical body, a port in said body for a vacuum source, at least two annular ridges projecting downwardly from said body for intimately contacting a workpiece surface, and at least one port for introducing lubricant to an interface of at least one of said ridges and said workpiece surface.
claim 23
28. A robot of wherein said stem member defines a vacuum passage for providing vacuum to said vacuum cup.
claim 23
29. A vacuum cup assembly for a robot having a robot body, comprising a vacuum cup, a stem member thereon, said stem member passing through at least a portion of said robot body, a lower stem housing below said robot body portion, an upper stem housing above said robot body portion, and springs within said upper and lower stem housings for flexibly stabilizing said vacuum cup assembly with respect to said robot body.
30. A vacuum cup assembly of wherein said stem member defines a passage from a source of vacuum to said vacuum cup.
claim 29
31. A vacuum cup assembly of wherein said vacuum cup includes a port for feeding lubricant to said vacuum cup.
claim 29
32. A vacuum cup assembly of including a filter in said passage.
claim 30
33. A vacuum cup assembly of wherein said springs are coil springs and said stem passes through said springs.
claim 29
Priority Applications (1)
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Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030048081A1 (en) * | 2001-09-09 | 2003-03-13 | Advanced Robotic Vehicles, Inc. | Surface adhering tool carrying robot |
US20080077276A1 (en) * | 2006-07-31 | 2008-03-27 | Pedro Montero Sanjuan | Crawler robot equipped with a work unit, and governing equipment for such crawler robots |
WO2008054462A2 (en) * | 2006-02-24 | 2008-05-08 | Donald Rodocker | Underwater crawler vehicle having search and identification capabilities and methods of use |
US20100018551A1 (en) * | 2008-07-23 | 2010-01-28 | Gallegos Frank J | Wind Turbine Tower Washing Apparatus and Method |
US20110192665A1 (en) * | 2008-10-10 | 2011-08-11 | Xiaoqi Chen | Non-contact lifting and locomotion device |
US20110271469A1 (en) * | 2005-02-18 | 2011-11-10 | Andrew Ziegler | Autonomous surface cleaning robot for wet and dry cleaning |
US20120006352A1 (en) * | 2009-11-23 | 2012-01-12 | Searobotics Corporation | Robotic submersible cleaning system |
US20130061696A1 (en) * | 2011-09-12 | 2013-03-14 | Honeywell International Inc. | System for the automated inspection of structures at height |
US20150107915A1 (en) * | 2013-10-21 | 2015-04-23 | Areva Inc. | Vacuum Stepper Robot |
CN104590416A (en) * | 2014-12-12 | 2015-05-06 | 华南理工大学 | Vacuum negative pressure adsorption system and method for multi-legged wall climbing robot |
WO2015081013A1 (en) * | 2013-11-26 | 2015-06-04 | Elwha Llc | Structural assessment, maintenance, and repair apparatuses and methods |
US9193402B2 (en) | 2013-11-26 | 2015-11-24 | Elwha Llc | Structural assessment, maintenance, and repair apparatuses and methods |
US9193068B2 (en) | 2013-11-26 | 2015-11-24 | Elwha Llc | Structural assessment, maintenance, and repair apparatuses and methods |
CN105235763A (en) * | 2015-10-16 | 2016-01-13 | 燕山大学 | Parallel-connected wall-climbing robot comprising six variable branches |
US9282867B2 (en) | 2012-12-28 | 2016-03-15 | Irobot Corporation | Autonomous coverage robot |
US9483055B2 (en) | 2012-12-28 | 2016-11-01 | Irobot Corporation | Autonomous coverage robot |
US20190337581A1 (en) * | 2017-01-18 | 2019-11-07 | Panasonic Intellectual Property Management Co., Ltd. | Wall surface suction-type travel device |
US11185996B2 (en) * | 2015-08-26 | 2021-11-30 | Berkshire Grey, Inc. | Systems and methods for providing vacuum valve assemblies for end effectors |
CN114222699A (en) * | 2019-08-16 | 2022-03-22 | 太田宽 | Conveying device |
US11408401B2 (en) * | 2019-04-11 | 2022-08-09 | General Electric Company | Robotic access system including robotic fan crawler for wind blade inspection and maintenance |
US11554505B2 (en) | 2019-08-08 | 2023-01-17 | Berkshire Grey Operating Company, Inc. | Systems and methods for providing, in programmable motion devices, compliant end effectors with noise mitigation |
US11865700B2 (en) | 2018-07-27 | 2024-01-09 | Berkshire Grey Operating Company, Inc. | Systems and methods for efficiently exchanging end effector tools |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1013559C2 (en) * | 1999-11-11 | 2001-05-28 | Peter Alexander Josephus Pas | System for producing hydrogen from water using a water stream such as a wave stream or tidal stream. |
US8788092B2 (en) | 2000-01-24 | 2014-07-22 | Irobot Corporation | Obstacle following sensor scheme for a mobile robot |
US8412377B2 (en) | 2000-01-24 | 2013-04-02 | Irobot Corporation | Obstacle following sensor scheme for a mobile robot |
US6956348B2 (en) | 2004-01-28 | 2005-10-18 | Irobot Corporation | Debris sensor for cleaning apparatus |
US6793026B1 (en) | 2000-08-22 | 2004-09-21 | I Robot Corporation | Wall-climbing robot |
US6742617B2 (en) * | 2000-09-25 | 2004-06-01 | Skywalker Robotics, Inc. | Apparatus and method for traversing compound curved and other surfaces |
US6883201B2 (en) | 2002-01-03 | 2005-04-26 | Irobot Corporation | Autonomous floor-cleaning robot |
US6690134B1 (en) | 2001-01-24 | 2004-02-10 | Irobot Corporation | Method and system for robot localization and confinement |
US7571511B2 (en) | 2002-01-03 | 2009-08-11 | Irobot Corporation | Autonomous floor-cleaning robot |
US7663333B2 (en) | 2001-06-12 | 2010-02-16 | Irobot Corporation | Method and system for multi-mode coverage for an autonomous robot |
US8396592B2 (en) | 2001-06-12 | 2013-03-12 | Irobot Corporation | Method and system for multi-mode coverage for an autonomous robot |
US9128486B2 (en) * | 2002-01-24 | 2015-09-08 | Irobot Corporation | Navigational control system for a robotic device |
US6554241B1 (en) * | 2002-02-19 | 2003-04-29 | Smart Robotics | Vacuum cup |
US8386081B2 (en) * | 2002-09-13 | 2013-02-26 | Irobot Corporation | Navigational control system for a robotic device |
US8428778B2 (en) * | 2002-09-13 | 2013-04-23 | Irobot Corporation | Navigational control system for a robotic device |
DE10314379B4 (en) * | 2003-03-29 | 2007-04-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Self-propelled device |
US6964312B2 (en) * | 2003-10-07 | 2005-11-15 | International Climbing Machines, Inc. | Surface traversing apparatus and method |
US7332890B2 (en) | 2004-01-21 | 2008-02-19 | Irobot Corporation | Autonomous robot auto-docking and energy management systems and methods |
WO2005089346A2 (en) * | 2004-03-15 | 2005-09-29 | The University Of Vermont And State Agricultural College | Systems comprising a mechanically actuated magnetic on-off attachment device |
JP2008508572A (en) | 2004-06-24 | 2008-03-21 | アイロボット コーポレーション | Portable robot programming and diagnostic tools |
US7706917B1 (en) | 2004-07-07 | 2010-04-27 | Irobot Corporation | Celestial navigation system for an autonomous robot |
US8972052B2 (en) | 2004-07-07 | 2015-03-03 | Irobot Corporation | Celestial navigation system for an autonomous vehicle |
US7620476B2 (en) | 2005-02-18 | 2009-11-17 | Irobot Corporation | Autonomous surface cleaning robot for dry cleaning |
US8392021B2 (en) | 2005-02-18 | 2013-03-05 | Irobot Corporation | Autonomous surface cleaning robot for wet cleaning |
US8930023B2 (en) | 2009-11-06 | 2015-01-06 | Irobot Corporation | Localization by learning of wave-signal distributions |
JP4745729B2 (en) * | 2005-06-21 | 2011-08-10 | 川崎重工業株式会社 | Friction stir welding equipment |
KR101099808B1 (en) | 2005-12-02 | 2011-12-27 | 아이로보트 코퍼레이션 | Robot system |
KR101300493B1 (en) | 2005-12-02 | 2013-09-02 | 아이로보트 코퍼레이션 | Coverage robot mobility |
ES2706727T3 (en) | 2005-12-02 | 2019-04-01 | Irobot Corp | Robot system |
US8584305B2 (en) | 2005-12-02 | 2013-11-19 | Irobot Corporation | Modular robot |
EP2816434A3 (en) | 2005-12-02 | 2015-01-28 | iRobot Corporation | Autonomous coverage robot |
US7520356B2 (en) * | 2006-04-07 | 2009-04-21 | Research Foundation Of The City University Of New York | Modular wall climbing robot with transition capability |
ATE523131T1 (en) * | 2006-05-19 | 2011-09-15 | Irobot Corp | WASTE REMOVAL FROM CLEANING ROBOTS |
US8417383B2 (en) | 2006-05-31 | 2013-04-09 | Irobot Corporation | Detecting robot stasis |
KR101414321B1 (en) | 2007-05-09 | 2014-07-01 | 아이로보트 코퍼레이션 | Autonomous coverage robot |
US7934575B2 (en) * | 2007-12-20 | 2011-05-03 | Markus Waibel | Robotic locomotion method and mobile robot |
US9440717B2 (en) * | 2008-11-21 | 2016-09-13 | Raytheon Company | Hull robot |
US8342281B2 (en) * | 2008-11-21 | 2013-01-01 | Raytheon Company | Hull robot steering system |
US9254898B2 (en) * | 2008-11-21 | 2016-02-09 | Raytheon Company | Hull robot with rotatable turret |
US8393421B2 (en) | 2009-10-14 | 2013-03-12 | Raytheon Company | Hull robot drive system |
US8800107B2 (en) | 2010-02-16 | 2014-08-12 | Irobot Corporation | Vacuum brush |
US8960117B2 (en) | 2012-09-07 | 2015-02-24 | Pgs Geophysical As | Method and apparatus to facilitate cleaning marine survey equipment |
US9051028B2 (en) | 2012-09-14 | 2015-06-09 | Raytheon Company | Autonomous hull inspection |
EP3287242B1 (en) | 2012-09-21 | 2021-10-20 | iRobot Corporation | Proximity sensor for a mobile robot |
US20140083449A1 (en) | 2012-09-27 | 2014-03-27 | Michael Bo Erneland | Ultrasonic Cleaning of Marine Geophysical Equipment |
CN105774933B (en) * | 2016-03-22 | 2018-01-26 | 京东方科技集团股份有限公司 | The method of work of mobile platform and mobile platform |
CN106741270B (en) * | 2016-12-23 | 2019-06-28 | 南京工程学院 | The wall-climbing robot of biped coordination actuation |
FR3066993B1 (en) * | 2017-06-02 | 2021-04-02 | Erylon | ROBOTIZED DEVICE |
CA2973216A1 (en) * | 2017-07-13 | 2019-01-13 | Inuktun Services Ltd | Magnetically adhering robot |
EP3622935B1 (en) * | 2018-09-12 | 2021-07-14 | TRUMPF Medizin Systeme GmbH + Co. KG | Magnetic suspension system |
JP7176918B2 (en) * | 2018-10-05 | 2022-11-22 | 東京計器株式会社 | adsorption device |
US10919589B1 (en) | 2020-04-21 | 2021-02-16 | International Climbing Machines, Inc. | Hybrid surface-traversing apparatus and method |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1092133A (en) * | 1965-03-04 | 1967-11-22 | Exxon Research Engineering Co | Apparatus for manoeuvring on a submerged surface |
US3601248A (en) * | 1968-08-16 | 1971-08-24 | Rohr Corp | Walking seal having liquid sealed sliding connections |
IT981863B (en) | 1973-04-03 | 1974-10-10 | Cie Italiana Montaggi Ind Spa | DEVICE FOR RETAINING AND CONTROLLED MOVEMENT ALONG THE WORKING PATH OF WELDING TOOLS |
FR2256657A5 (en) * | 1973-12-28 | 1975-07-25 | Phoceenne Sous Marine Psm | |
FR2333583A1 (en) * | 1975-12-01 | 1977-07-01 | Nal Pour Expl Oceans Centre | DEVICE FOR APPLYING A COATING TO A SUBMERSIBLE SURFACE |
US4095378A (en) * | 1975-12-18 | 1978-06-20 | Uragami Fukashi | Device capable of suction-adhering to a wall surface and moving therealong |
FI75512C (en) | 1984-08-14 | 1988-07-11 | Gss General Sea Safety Ltd Oy | Procedure, device and piece to be welded for conducting a weld joint underwater. |
AT386595B (en) | 1985-02-25 | 1988-09-12 | Lisec Peter Glastech Ind | GLASS CUTTING TABLE |
US4669915A (en) * | 1985-11-19 | 1987-06-02 | Shell Offshore Inc. | Manipulator apparatus with flexible membrane for gripping submerged objects |
JPS63195072A (en) | 1987-02-06 | 1988-08-12 | Ishikawajima Kensa Keisoku Kk | Adsorption element for travel truck |
US4926957A (en) | 1987-04-01 | 1990-05-22 | Uragami Fukashi | Device capable of suction-adhering to a wall surface and moving therealong |
US4971591A (en) | 1989-04-25 | 1990-11-20 | Roni Raviv | Vehicle with vacuum traction |
US5161631A (en) * | 1989-11-27 | 1992-11-10 | Uragami Fukashi | Suction device capable of moving along a surface |
US5194032A (en) | 1991-05-03 | 1993-03-16 | Garfinkel Henry A | Mobile toy with zero-gravity system |
US5451135A (en) | 1993-04-02 | 1995-09-19 | Carnegie Mellon University | Collapsible mobile vehicle |
US5429009A (en) | 1993-05-20 | 1995-07-04 | Carnegie Mellon University | Robot with cruciform geometry |
KR100384194B1 (en) * | 1995-03-22 | 2003-08-21 | 혼다 기켄 고교 가부시키가이샤 | Adsorption wall walking device |
US5890250A (en) | 1996-02-02 | 1999-04-06 | Sky Robitics, Inc. | Robotic washing apparatus |
US5811055A (en) * | 1996-02-06 | 1998-09-22 | Geiger; Michael B. | Torch mounted gas scavaging system for manual and robotic welding and cutting torches |
US5947051A (en) * | 1997-06-04 | 1999-09-07 | Geiger; Michael B. | Underwater self-propelled surface adhering robotically operated vehicle |
US5897796A (en) | 1997-06-16 | 1999-04-27 | Chrysler Corporation | Method and apparatus for in-situ laser welding of hemmed joints |
-
2000
- 2000-02-16 US US09/505,409 patent/US6276478B1/en not_active Expired - Fee Related
-
2001
- 2001-02-14 WO PCT/US2001/004830 patent/WO2001060638A1/en active Application Filing
- 2001-02-14 US US09/783,834 patent/US20010013434A1/en not_active Abandoned
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