US20140308100A1 - Pill picking apparatus - Google Patents
Pill picking apparatus Download PDFInfo
- Publication number
- US20140308100A1 US20140308100A1 US14/243,023 US201414243023A US2014308100A1 US 20140308100 A1 US20140308100 A1 US 20140308100A1 US 201414243023 A US201414243023 A US 201414243023A US 2014308100 A1 US2014308100 A1 US 2014308100A1
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- US
- United States
- Prior art keywords
- arm
- pill
- linkage arm
- linkage
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000006187 pill Substances 0.000 title claims abstract description 115
- 230000000903 blocking effect Effects 0.000 claims abstract description 37
- 238000009434 installation Methods 0.000 claims description 9
- 230000008054 signal transmission Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 2
- 208000017667 Chronic Disease Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000820 nonprescription drug Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/04—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, or spherical or like small articles, e.g. tablets or pills
- B65D83/0409—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, or spherical or like small articles, e.g. tablets or pills the dispensing means being adapted for delivering one article, or a single dose, upon each actuation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J7/00—Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
- A61J7/0076—Medicament distribution means
Definitions
- the present disclosure generally relates to pill dispensers, and particularly relates to pill picking apparatuses of automatic pill dispensers.
- Pill dispensers are commonly used to used to help individuals, such as the elderly or chronically ill, take their prescription medication, OTC medication or daily supplements at a given date and time. Pill dispensers often include a pill box for storing solid pills and a pill picking apparatus for picking pills from the pill box. However, when the remaining amount of pills left in the pill box is small, it becomes more difficult for the picking apparatus to pick pills from the pill box.
- FIG. 1 is an isometric view of an embodiment of a pill dispenser.
- FIG. 2 is similar to FIG. 1 , but the pill dispenser is viewed from another aspect.
- FIG. 3 is an exploded view of the pill dispenser of FIG. 1 .
- FIGS. 4-15 show a process of the pill picking apparatus picking a pill from a pill box of the pill dispenser of FIG. 1 .
- FIGS. 1-4 show an embodiment of a pill dispenser.
- the pill dispenser includes a pill picking apparatus 10 and a pill box 50 .
- a plurality of pills may be stored in the pill box 50 .
- the pill picking apparatus 10 may pick pills from the pill box 50 .
- the pill box 50 includes an interior wall 51 which forms a storage cavity 53 for storing pills.
- the pill box 50 defines an opening 52 for allowing access to the storage cavity 53 of the pill box 50 .
- the pill picking apparatus 10 includes a main arm 11 , a linkage mechanism 12 , a holder 124 , a picking device such as a vacuum nozzle 13 , a transfer mechanism 14 , a first blocking member 16 , a second blocking member 15 , and a position sensor 17 .
- the main arm 11 is rotatable about a first axis 31 .
- the main arm 11 includes a main body 111 , an installation portion 112 , a breaking portion 113 , and a contacting portion 114 .
- the main body 111 defines an opening 1111 .
- the opening 1111 is bound by two opposite straight edges and two opposite curved edges.
- the installation portion 112 extends from an upper end of the main body 111
- the breaking portion 113 extends from a lower end of the main body 111 .
- the installation portion 112 is substantially perpendicular to the main body 111 .
- the contacting portion 114 extends from the lower end of the main body 111 and is adjacent to the breaking portion 113 .
- the transfer mechanism 14 includes a transfer cam 141 , a driving shaft 142 , and a driving wheel 143 .
- the transfer cam 141 is rotatable about a second axis 32 .
- a free end of the transfer cam 141 defines a fixing hole 1411 .
- a first end of the driving shaft 142 is inserted into the fixing hole 1411 , so that the driving shaft 142 is fixed to the transfer cam 141 and may be rotated about the second axis 32 by the transfer cam 141 .
- the driving shaft 142 is substantially perpendicular to the transfer cam 141 .
- the driving wheel 143 is mounted to a second end of the driving shaft 142 and is rotatable about the driving shaft 142 .
- the second axis 32 is above and to the left of the first axis 31 .
- the transfer cam 141 defines one or more slots 1413 for connecting to a motor (not shown), such that the transfer cam 141 may be rotated about the second axis 32 by the motor.
- the second end of the driving shaft 142 is received into the opening 1111 of the main body 111 .
- the driving wheel 143 is received into the opening 1111 of the main body 111 .
- the driving shaft 142 is rotated by the transfer cam 141 about the second axis 32 , the driving wheel 143 presses an edge of the opening 1111 of the main body 111 and drives the main body 1111 to rotate about the first axis 31 .
- the linkage mechanism 12 includes a first linkage arm 121 , a second linkage arm 122 , and a third linkage arm 123 .
- the first linkage arm 121 includes a first connecting end 1211 , a first pivot portion 1212 , and a contacting end 1213 .
- the first pivot portion 1212 is pivotally coupled to the installation portion 112 of the main arm 11 .
- the first linkage arm 121 is rotatable about a third axis 33 .
- the first connecting end 1211 and the contacting end 1213 are located at opposite sides of the first pivot portion 1212 .
- the contacting end 1213 includes a protrusion 1214 extending downward.
- the second linkage arm 122 includes a second connecting end 1221 , a second pivot portion 1222 , and a third connecting end 1223 .
- a projection of the second linkage arm 122 is substantially triangular.
- the second connecting end 1221 , the second pivot portion 1222 , and the third connecting end 1223 are substantially located at the three corners of a triangle.
- the second pivot portion 1222 is pivotally coupled to the installation portion 112 of the main arm 11 .
- the second linkage arm 122 is rotatable about a fourth axis 34 .
- a first end of the third linkage arm 123 is pivotally coupled to the first connecting end 1211 of the first linkage arm 121 .
- a second end of the third linkage arm 123 is pivotally coupled to the second connecting end 1221 of the second linkage arm 122 .
- the holder 124 includes a third pivot portion 1241 , a shovel 1242 , and a receiving portion 1243 .
- the third pivot portion 1241 is pivotally coupled to the third connecting end 1223 of the second linkage arm 1221 .
- the holder 124 is rotatable about a fifth axis 35 .
- the vacuum nozzle 13 is received and mounted in the receiving portion 1243 .
- the shovel 1242 is located on an outer side of the receiving portion 1243 . A length of the shovel 1242 is greater than a length of the receiving portion 1243 .
- the shovel 1242 is substantially flat.
- the vacuum nozzle 13 is connected to a pump or cylinder (not shown) to suck a pill from the pill box 50 .
- the linkage mechanism 12 includes a cover 125 .
- the cover 125 is mounted to the second linkage arm 122 and the third linkage arm 123 .
- the cover 125 covers a gap between the second linkage arm 122 and the third linkage arm 123 to prevent a pill from getting stuck in the gap.
- the position sensor 17 is substantially U-shaped.
- the position sensor 17 includes a signal transmitter 171 and a signal receiver 172 .
- the signal transmitter 171 and the signal receiver 172 face each other.
- the signal transmitter 171 transmits a signal, e.g., an optical signal, to the signal receiver 172 .
- the breaking portion 113 of the main arm 11 is moved to a position between the signal transmitter 171 and the signal receiver 172 , and breaks the signal transmission between the signal transmitter 171 and the signal receiver 172 , the position sensor 17 determines that the main arm 11 is located in an initial position.
- the breaking portion 113 of the main arm 11 is not located between the signal transmitter 171 and the signal receiver 172 and the signal transmission recommences, the position sensor 17 determines that the main arm 11 has left the initial position.
- the contacting portion 114 of the main arm 11 abuts against the second blocking member 15 thereby preventing the main arm 11 from rotating about the first axis 31 in a clockwise direction (from the view in FIG. 4 ).
- the second blocking member 15 is flat and lies horizontally.
- the first blocking member 16 is located on a top wall 54 of the pill box 50 and adjacent to the opening 52 of the pill box 50 .
- the first blocking member 16 includes a contacting surface 161 which is inclined relative to the top wall 54 of the pill box 50 .
- a lower edge of the blocking member 16 is located below the first axis 31 and a top edge of the blocking member 16 is located above the first axis 31 .
- the blocking member 16 drives the first linkage arm 121 to rotate about the third axis 33 in a counter-clockwise direction, and further drives the third linkage arm 123 to rotate about the fourth axis 34 in a counter-clockwise direction.
- a radius of rotation of the main arm 11 about the first axis 31 is three times greater than a radius of rotation of the driving shaft 142 about the second axis 32 .
- a vertical distance between the first axis 31 and the second axis 32 is three and one half times greater than a horizontal distance between the first axis 31 and the second axis 32 .
- the pill picking apparatus 10 includes a first resilient member 21 and a second resilient member 22 .
- An end of the first resilient member 21 is connected to the first arm 11 , and another end of the first resilient member 21 is connected to the first linkage arm 121 .
- the first resilient member 21 applies a pulling force to the first linkage arm 121 , so that the first linkage arm 121 is biased to rotate about the third axis 33 in a clockwise direction.
- An end of the second resilient member 22 is connected to the first linkage arm 121 , and another end of the second resilient member 22 is connected to the holder 124 .
- the second resilient member 22 applies a pulling force to the holder 124 , so that the holder 124 is biased to rotate about the fifth axis 35 .
- the first resilient member 21 and the second resilient member 22 may be extension springs.
- the second resilient member 22 is located on an interior side of the third linkage arm 123 and the cover 125 .
- the second resilient member 22 is spaced from the pills stored in the pill box 50 by the third linkage arm 123 and the cover 125 , so that the second resilient member 22 is prevented from touching and polluting the pills stored in the pill box 50 .
- the interior wall 51 of the pill box 50 has a curved surface.
- the interior wall 51 guides the movement of the shovel 1242 of the holder 124 .
- the first axis 31 , the second axis 32 , the third axis 33 , the fourth axis 34 , and the fifth axis 35 are parallel to each other.
- FIGS. 4-15 show a process of the pill picking apparatus 10 picking a pill from the pill box 50 .
- the main arm 11 is located in an initial position.
- the contacting portion 114 of the main arm 11 abuts against the second blocking member 15 .
- the blocking member 15 prevents the main arm 11 from rotating about the first axis 31 in the clockwise direction.
- the breaking portion 113 of the main arm 113 is located in a position between the signal transmitter 171 and the signal receiver 172 and breaks the signal transmission between the signal transmitter 171 and the signal receiver 172 .
- the position sensor 17 thus determines that the main arm 11 is located in the initial position.
- the transfer cam 141 of the transfer mechanism 14 starts rotating about the second axis 32 in a counter-clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 presses an edge of the opening 1111 of the main arm 11 , thus driving the main arm 11 to rotate about the first axis 31 in a counter-clockwise direction.
- the linkage mechanism 12 and the vacuum nozzle 13 are on the point of entering the storage cavity 53 of the pill box 50 .
- the breaking portion 113 of the main arm 11 is about to leave the position sensor 17 .
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a counter-clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues pressing an edge of the opening 1111 of the main arm 11 and driving the main arm 11 to rotate about the first axis 31 in a counter-clockwise direction.
- the linkage mechanism 12 and the vacuum nozzle 13 enter the storage cavity 53 of the pill box 50 .
- the breaking portion 113 of the main arm 11 has left the position sensor 17 enabling the signal transmission between the signal transmitter 171 and the signal receiver 172 to recommence.
- the position sensor 17 determines that the main arm 11 has left the initial position. In this position, the vacuum nozzle 13 may pick a pill if the storage cavity 53 of the pill box 50 is full of pills.
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a counter-clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues pressing an edge of the opening 1111 of the main arm 11 and driving the main arm 11 to rotate about the first axis 31 in a counter-clockwise direction.
- the shovel 1242 of the holder 124 contacts the curved surface of the interior wall 51 and moves down under the guidance of the interior wall 51 . At this point, the vacuum nozzle 13 may pick a pill if the storage cavity 53 of the pill box 50 is half full.
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a counter-clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues pressing an edge of the opening 1111 of the main arm 11 and driving the main arm 11 to rotate about the first axis 31 in a counter-clockwise direction.
- the protrusion 1214 of the contacting end 1213 of the first linkage arm 121 abuts against the contacting surface 161 of the first blocking member 16 .
- the first blocking member 161 starts driving the first linkage arm 121 to rotate about the third axis 33 in a counter-clockwise direction.
- the shovel 1242 continues moving down under the guidance of the interior wall 51 .
- the vacuum nozzle 13 may pick a pill if the storage cavity 53 of the pill box 50 is almost empty of pills.
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a counter-clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues pressing an edge of the opening 1111 of the main arm 11 and driving the main arm 11 to rotate about the first axis 31 in a counter-clockwise direction.
- the protrusion 1214 of the contacting end 1213 of the first linkage arm 121 abuts against the contacting surface 161 of the first blocking member 16 .
- the first blocking member 161 continues driving the first linkage arm 121 to rotate about the third axis 33 in a counter-clockwise direction.
- the shovel 1242 continues moving down under the guidance of the interior wall 51 . At the moment, the vacuum nozzle 13 may pick a pill resting at a bottom position of the storage cavity 53 of the pill box 50 .
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a counter-clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues pressing an edge of the opening 1111 of the main arm 11 and driving the main arm 11 to rotate about the first axis 31 in a counter-clockwise direction.
- the protrusion 1214 of the contacting end 1213 of the first linkage arm 121 abuts against the contacting surface 161 of the first blocking member 16 .
- the first blocking member 161 continues driving the first linkage arm 121 to rotate about the third axis 33 in a counter-clockwise direction.
- the shovel 1242 of the holder 124 moves to the right and up under the guidance of the interior wall 51 until the vacuum nozzle 13 picks a pill in the storage cavity 53 of the pill box 50 .
- the transfer cam 141 of the transfer mechanism 14 starts rotating about the second axis 32 in a clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 presses an edge of the opening 1111 of the main arm 11 and drives the main arm 11 to rotate about the first axis 31 in a clockwise direction.
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues driving the main arm 11 to rotate about the first axis 31 in a clockwise direction.
- the shovel 1242 and the vacuum nozzle 13 move to the bottom position of the storage cavity 53 of the pill box 50 .
- FIG. 12 shows the transfer cam 141 of the transfer mechanism 14 continuing to rotate about the second axis 32 in a clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues driving the main arm 11 to rotate about the first axis 31 in a clockwise direction.
- the shovel 1242 and the vacuum nozzle 13 move to the lowest position of the storage cavity 53 of the pill box 50 .
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues driving the main arm 11 to rotate about the first axis 31 in a clockwise direction.
- the shovel 1242 and the vacuum nozzle 13 move up from the lowest position of the storage cavity 53 of the pill box 50 .
- the transfer cam 141 of the transfer mechanism 14 continues rotating about the second axis 32 in a clockwise direction.
- the driving wheel 143 of the transfer mechanism 14 continues driving the main arm 11 to rotate about the first axis 31 in a clockwise direction.
- the shovel 1242 and the vacuum nozzle 13 have left the storage cavity 53 of the pill box 50 .
- the breaking portion 113 of the main arm 113 is about to move to interrupt the line between the signal transmitter 171 and the signal receiver 172 .
- the main arm 11 returns to the initial position.
- the contacting portion 114 of the main arm 11 abuts against the second blocking member 15 .
- the second blocking member 15 prevents the main arm 11 from rotating about the first axis 31 in a clockwise direction.
- the breaking portion 113 of the main arm 113 is located in a position between the signal transmitter 171 and the signal receiver 172 and breaks the signal transmission between the signal transmitter 171 and the signal receiver 172 .
- the position sensor 17 determines that the main arm 11 is located in the initial position.
- the transfer cam 141 of the transfer mechanism 14 stops rotating and accordingly the driving wheel 143 of the transfer mechanism 14 stops driving the main arm 11 to rotate.
Abstract
A pill picking apparatus which can pick up pills from a pill box includes a main arm and a linkage mechanism. The linkage mechanism has a first linkage arm, a second linkage arm, a third linkage arm, and a holder. The first linkage arm and the second linkage arm are pivotally mounted to the main arm. The third linkage arm has a first end mounted to the first linkage arm and a second end pivotally mounted to the second linkage arm. The holder is pivotally mounted to the second linkage arm and holds a picking device for picking a pill from a pill box. When the main arm rotates to a position where the first linkage arm abuts against a first blocking member, the first blocking member drives the first linkage arm to rotate relative to the main arm.
Description
- This application claims priority to Taiwan Patent Application No. 102113010 filed on Apr. 12, 2013 in the Taiwan Intellectual Property Office, the contents of which are hereby incorporated by reference. Related subject matter is disclosed in co-pending U.S. patent applications entitled “PILL PICKING APPARATUS”, Attorney Docket Number US51617, US application No. [to be advised], filed on the same day as the present application.
- The present disclosure generally relates to pill dispensers, and particularly relates to pill picking apparatuses of automatic pill dispensers.
- Automatic pill dispensers are commonly used to used to help individuals, such as the elderly or chronically ill, take their prescription medication, OTC medication or daily supplements at a given date and time. Pill dispensers often include a pill box for storing solid pills and a pill picking apparatus for picking pills from the pill box. However, when the remaining amount of pills left in the pill box is small, it becomes more difficult for the picking apparatus to pick pills from the pill box.
- Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is an isometric view of an embodiment of a pill dispenser. -
FIG. 2 is similar toFIG. 1 , but the pill dispenser is viewed from another aspect. -
FIG. 3 is an exploded view of the pill dispenser ofFIG. 1 . -
FIGS. 4-15 show a process of the pill picking apparatus picking a pill from a pill box of the pill dispenser ofFIG. 1 . - The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.”
-
FIGS. 1-4 show an embodiment of a pill dispenser. The pill dispenser includes apill picking apparatus 10 and apill box 50. A plurality of pills may be stored in thepill box 50. Thepill picking apparatus 10 may pick pills from thepill box 50. - In at least one embodiment, the
pill box 50 includes aninterior wall 51 which forms astorage cavity 53 for storing pills. Thepill box 50 defines anopening 52 for allowing access to thestorage cavity 53 of thepill box 50. - In at least one embodiment, the
pill picking apparatus 10 includes amain arm 11, alinkage mechanism 12, aholder 124, a picking device such as avacuum nozzle 13, atransfer mechanism 14, afirst blocking member 16, asecond blocking member 15, and aposition sensor 17. - The
main arm 11 is rotatable about afirst axis 31. Themain arm 11 includes amain body 111, aninstallation portion 112, a breakingportion 113, and a contactingportion 114. Themain body 111 defines anopening 1111. The opening 1111 is bound by two opposite straight edges and two opposite curved edges. Theinstallation portion 112 extends from an upper end of themain body 111, and thebreaking portion 113 extends from a lower end of themain body 111. Theinstallation portion 112 is substantially perpendicular to themain body 111. The contactingportion 114 extends from the lower end of themain body 111 and is adjacent to the breakingportion 113. - The
transfer mechanism 14 includes atransfer cam 141, adriving shaft 142, and adriving wheel 143. Thetransfer cam 141 is rotatable about asecond axis 32. A free end of thetransfer cam 141 defines afixing hole 1411. A first end of thedriving shaft 142 is inserted into thefixing hole 1411, so that thedriving shaft 142 is fixed to thetransfer cam 141 and may be rotated about thesecond axis 32 by thetransfer cam 141. Thedriving shaft 142 is substantially perpendicular to thetransfer cam 141. Thedriving wheel 143 is mounted to a second end of thedriving shaft 142 and is rotatable about thedriving shaft 142. Thesecond axis 32 is above and to the left of thefirst axis 31. Thetransfer cam 141 defines one ormore slots 1413 for connecting to a motor (not shown), such that thetransfer cam 141 may be rotated about thesecond axis 32 by the motor. - The second end of the driving
shaft 142 is received into the opening 1111 of themain body 111. Thedriving wheel 143 is received into the opening 1111 of themain body 111. When thedriving shaft 142 is rotated by thetransfer cam 141 about thesecond axis 32, thedriving wheel 143 presses an edge of the opening 1111 of themain body 111 and drives themain body 1111 to rotate about thefirst axis 31. - The
linkage mechanism 12 includes afirst linkage arm 121, asecond linkage arm 122, and athird linkage arm 123. - The
first linkage arm 121 includes a first connectingend 1211, afirst pivot portion 1212, and a contactingend 1213. Thefirst pivot portion 1212 is pivotally coupled to theinstallation portion 112 of themain arm 11. Thefirst linkage arm 121 is rotatable about athird axis 33. The first connectingend 1211 and the contactingend 1213 are located at opposite sides of thefirst pivot portion 1212. The contactingend 1213 includes aprotrusion 1214 extending downward. - The
second linkage arm 122 includes a second connectingend 1221, asecond pivot portion 1222, and a third connectingend 1223. A projection of thesecond linkage arm 122 is substantially triangular. The second connectingend 1221, thesecond pivot portion 1222, and the third connectingend 1223 are substantially located at the three corners of a triangle. Thesecond pivot portion 1222 is pivotally coupled to theinstallation portion 112 of themain arm 11. Thesecond linkage arm 122 is rotatable about afourth axis 34. - A first end of the
third linkage arm 123 is pivotally coupled to the first connectingend 1211 of thefirst linkage arm 121. A second end of thethird linkage arm 123 is pivotally coupled to the second connectingend 1221 of thesecond linkage arm 122. When thefirst linkage arm 121 is rotated about thethird axis 33, thethird linkage arm 123 is moved by thefirst linkage arm 121, thus driving thesecond linkage arm 122 to rotate about thefourth axis 34. - The
holder 124 includes athird pivot portion 1241, ashovel 1242, and a receivingportion 1243. Thethird pivot portion 1241 is pivotally coupled to the third connectingend 1223 of thesecond linkage arm 1221. Theholder 124 is rotatable about afifth axis 35. Thevacuum nozzle 13 is received and mounted in thereceiving portion 1243. Theshovel 1242 is located on an outer side of the receivingportion 1243. A length of theshovel 1242 is greater than a length of thereceiving portion 1243. Theshovel 1242 is substantially flat. Thevacuum nozzle 13 is connected to a pump or cylinder (not shown) to suck a pill from thepill box 50. - In at least one embodiment, the
linkage mechanism 12 includes acover 125. Thecover 125 is mounted to thesecond linkage arm 122 and thethird linkage arm 123. Thecover 125 covers a gap between thesecond linkage arm 122 and thethird linkage arm 123 to prevent a pill from getting stuck in the gap. - The
position sensor 17 is substantially U-shaped. Theposition sensor 17 includes asignal transmitter 171 and asignal receiver 172. Thesignal transmitter 171 and thesignal receiver 172 face each other. Thesignal transmitter 171 transmits a signal, e.g., an optical signal, to thesignal receiver 172. When the breakingportion 113 of themain arm 11 is moved to a position between thesignal transmitter 171 and thesignal receiver 172, and breaks the signal transmission between thesignal transmitter 171 and thesignal receiver 172, theposition sensor 17 determines that themain arm 11 is located in an initial position. When the breakingportion 113 of themain arm 11 is not located between thesignal transmitter 171 and thesignal receiver 172 and the signal transmission recommences, theposition sensor 17 determines that themain arm 11 has left the initial position. - When the
main arm 11 is located in the initial position, the contactingportion 114 of themain arm 11 abuts against the second blockingmember 15 thereby preventing themain arm 11 from rotating about thefirst axis 31 in a clockwise direction (from the view inFIG. 4 ). Thesecond blocking member 15 is flat and lies horizontally. - The
first blocking member 16 is located on atop wall 54 of thepill box 50 and adjacent to theopening 52 of thepill box 50. Thefirst blocking member 16 includes a contactingsurface 161 which is inclined relative to thetop wall 54 of thepill box 50. In one embodiment, a lower edge of the blockingmember 16 is located below thefirst axis 31 and a top edge of the blockingmember 16 is located above thefirst axis 31. - When the
main arm 11 moves in a counter-clockwise direction to a position where the contactingend 1213 of thefirst linkage arm 121 abuts against the contactingsurface 161 of the first blockingmember 16 and themain arm 11 continues moving in a counter-clockwise direction (according to the view inFIGS. 8-10 ), the blockingmember 16 drives thefirst linkage arm 121 to rotate about thethird axis 33 in a counter-clockwise direction, and further drives thethird linkage arm 123 to rotate about thefourth axis 34 in a counter-clockwise direction. - In some embodiments, a radius of rotation of the
main arm 11 about thefirst axis 31 is three times greater than a radius of rotation of the drivingshaft 142 about thesecond axis 32. A vertical distance between thefirst axis 31 and thesecond axis 32 is three and one half times greater than a horizontal distance between thefirst axis 31 and thesecond axis 32. - In at least one embodiment, the
pill picking apparatus 10 includes a firstresilient member 21 and a secondresilient member 22. An end of the firstresilient member 21 is connected to thefirst arm 11, and another end of the firstresilient member 21 is connected to thefirst linkage arm 121. The firstresilient member 21 applies a pulling force to thefirst linkage arm 121, so that thefirst linkage arm 121 is biased to rotate about thethird axis 33 in a clockwise direction. An end of the secondresilient member 22 is connected to thefirst linkage arm 121, and another end of the secondresilient member 22 is connected to theholder 124. The secondresilient member 22 applies a pulling force to theholder 124, so that theholder 124 is biased to rotate about thefifth axis 35. The firstresilient member 21 and the secondresilient member 22 may be extension springs. - The second
resilient member 22 is located on an interior side of thethird linkage arm 123 and thecover 125. When thelinkage mechanism 12 enters thestorage cavity 53 of thepill box 50, the secondresilient member 22 is spaced from the pills stored in thepill box 50 by thethird linkage arm 123 and thecover 125, so that the secondresilient member 22 is prevented from touching and polluting the pills stored in thepill box 50. - The
interior wall 51 of thepill box 50 has a curved surface. When thelinkage mechanism 12 enters thestorage cavity 53 of thepill box 50, theinterior wall 51 guides the movement of theshovel 1242 of theholder 124. - In at least one embodiment, the
first axis 31, thesecond axis 32, thethird axis 33, thefourth axis 34, and thefifth axis 35 are parallel to each other. -
FIGS. 4-15 show a process of thepill picking apparatus 10 picking a pill from thepill box 50. - In
FIG. 4 , themain arm 11 is located in an initial position. The contactingportion 114 of themain arm 11 abuts against the second blockingmember 15. The blockingmember 15 prevents themain arm 11 from rotating about thefirst axis 31 in the clockwise direction. The breakingportion 113 of themain arm 113 is located in a position between thesignal transmitter 171 and thesignal receiver 172 and breaks the signal transmission between thesignal transmitter 171 and thesignal receiver 172. Theposition sensor 17 thus determines that themain arm 11 is located in the initial position. - In
FIG. 5 , thetransfer cam 141 of thetransfer mechanism 14 starts rotating about thesecond axis 32 in a counter-clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 presses an edge of theopening 1111 of themain arm 11, thus driving themain arm 11 to rotate about thefirst axis 31 in a counter-clockwise direction. Thelinkage mechanism 12 and thevacuum nozzle 13 are on the point of entering thestorage cavity 53 of thepill box 50. The breakingportion 113 of themain arm 11 is about to leave theposition sensor 17. - In
FIG. 6 , thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a counter-clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues pressing an edge of theopening 1111 of themain arm 11 and driving themain arm 11 to rotate about thefirst axis 31 in a counter-clockwise direction. Thelinkage mechanism 12 and thevacuum nozzle 13 enter thestorage cavity 53 of thepill box 50. The breakingportion 113 of themain arm 11 has left theposition sensor 17 enabling the signal transmission between thesignal transmitter 171 and thesignal receiver 172 to recommence. Theposition sensor 17 determines that themain arm 11 has left the initial position. In this position, thevacuum nozzle 13 may pick a pill if thestorage cavity 53 of thepill box 50 is full of pills. - In
FIG. 7 , when thevacuum nozzle 13 does not pick a pill at this stage, thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a counter-clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues pressing an edge of theopening 1111 of themain arm 11 and driving themain arm 11 to rotate about thefirst axis 31 in a counter-clockwise direction. Theshovel 1242 of theholder 124 contacts the curved surface of theinterior wall 51 and moves down under the guidance of theinterior wall 51. At this point, thevacuum nozzle 13 may pick a pill if thestorage cavity 53 of thepill box 50 is half full. - In
FIG. 8 , when thevacuum nozzle 13 does not pick a pill at this stage, thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a counter-clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues pressing an edge of theopening 1111 of themain arm 11 and driving themain arm 11 to rotate about thefirst axis 31 in a counter-clockwise direction. Theprotrusion 1214 of the contactingend 1213 of thefirst linkage arm 121 abuts against the contactingsurface 161 of the first blockingmember 16. Thefirst blocking member 161 starts driving thefirst linkage arm 121 to rotate about thethird axis 33 in a counter-clockwise direction. Theshovel 1242 continues moving down under the guidance of theinterior wall 51. At this stage, thevacuum nozzle 13 may pick a pill if thestorage cavity 53 of thepill box 50 is almost empty of pills. - In
FIG. 9 , when thevacuum nozzle 13 does not pick a pill at this point, thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a counter-clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues pressing an edge of theopening 1111 of themain arm 11 and driving themain arm 11 to rotate about thefirst axis 31 in a counter-clockwise direction. Theprotrusion 1214 of the contactingend 1213 of thefirst linkage arm 121 abuts against the contactingsurface 161 of the first blockingmember 16. Thefirst blocking member 161 continues driving thefirst linkage arm 121 to rotate about thethird axis 33 in a counter-clockwise direction. Theshovel 1242 continues moving down under the guidance of theinterior wall 51. At the moment, thevacuum nozzle 13 may pick a pill resting at a bottom position of thestorage cavity 53 of thepill box 50. - In
FIG. 10 , when thevacuum nozzle 13 does not pick a pill at this point, thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a counter-clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues pressing an edge of theopening 1111 of themain arm 11 and driving themain arm 11 to rotate about thefirst axis 31 in a counter-clockwise direction. Theprotrusion 1214 of the contactingend 1213 of thefirst linkage arm 121 abuts against the contactingsurface 161 of the first blockingmember 16. Thefirst blocking member 161 continues driving thefirst linkage arm 121 to rotate about thethird axis 33 in a counter-clockwise direction. Theshovel 1242 of theholder 124 moves to the right and up under the guidance of theinterior wall 51 until thevacuum nozzle 13 picks a pill in thestorage cavity 53 of thepill box 50. - When the
vacuum nozzle 13 has picked a pill from thepill box 50, thetransfer cam 141 of thetransfer mechanism 14 starts rotating about thesecond axis 32 in a clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 presses an edge of theopening 1111 of themain arm 11 and drives themain arm 11 to rotate about thefirst axis 31 in a clockwise direction. - In
FIG. 11 , thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues driving themain arm 11 to rotate about thefirst axis 31 in a clockwise direction. Theshovel 1242 and thevacuum nozzle 13 move to the bottom position of thestorage cavity 53 of thepill box 50. -
FIG. 12 shows thetransfer cam 141 of thetransfer mechanism 14 continuing to rotate about thesecond axis 32 in a clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues driving themain arm 11 to rotate about thefirst axis 31 in a clockwise direction. Theshovel 1242 and thevacuum nozzle 13 move to the lowest position of thestorage cavity 53 of thepill box 50. - In
FIG. 13 , thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues driving themain arm 11 to rotate about thefirst axis 31 in a clockwise direction. Theshovel 1242 and thevacuum nozzle 13 move up from the lowest position of thestorage cavity 53 of thepill box 50. - In
FIG. 14 , thetransfer cam 141 of thetransfer mechanism 14 continues rotating about thesecond axis 32 in a clockwise direction. Thedriving wheel 143 of thetransfer mechanism 14 continues driving themain arm 11 to rotate about thefirst axis 31 in a clockwise direction. At this point, theshovel 1242 and thevacuum nozzle 13 have left thestorage cavity 53 of thepill box 50. The breakingportion 113 of themain arm 113 is about to move to interrupt the line between thesignal transmitter 171 and thesignal receiver 172. - In
FIG. 15 , themain arm 11 returns to the initial position. The contactingportion 114 of themain arm 11 abuts against the second blockingmember 15. Thesecond blocking member 15 prevents themain arm 11 from rotating about thefirst axis 31 in a clockwise direction. The breakingportion 113 of themain arm 113 is located in a position between thesignal transmitter 171 and thesignal receiver 172 and breaks the signal transmission between thesignal transmitter 171 and thesignal receiver 172. Theposition sensor 17 determines that themain arm 11 is located in the initial position. Thetransfer cam 141 of thetransfer mechanism 14 stops rotating and accordingly thedriving wheel 143 of thetransfer mechanism 14 stops driving themain arm 11 to rotate. - It is to be understood, however, that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only and changes may be made in detail, including in the matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed. The disclosed embodiments are illustrative examples, and are not intended to limit the scope of the following claims.
Claims (20)
1. A pill picking apparatus, comprising:
a main arm;
a linkage mechanism comprising a first linkage arm, a second linkage arm, a third linkage arm, and a holder, wherein the first linkage arm and the second linkage arm are pivotally mounted to the main arm, a first end of the third linkage arm is pivotally mounted to the first linkage arm, a second end of the third linkage arm is pivotally mounted to the second linkage arm, and the holder is pivotally mounted to the second linkage arm;
a picking device mounted to the holder and adapted to pick a pill from a pill box; and
a first blocking member, wherein when the main arm rotates to a position where the first linkage arm abuts against the first blocking member, the first blocking member is adapted to drive the first linkage arm to rotate relative to the main arm.
2. The pill picking apparatus of claim 1 , wherein the holder comprises a receiving portion for receiving the picking device and a shovel located on an outer side of the receiving portion.
3. The pill picking apparatus of claim 1 , wherein the main arm is rotatable about a first axis, the main arm comprises a main body and an installation portion extending from an upper end of the main body, the first linkage arm and the second linkage arm are pivotally mounted to the installation portion.
4. The pill picking apparatus of claim 3 , further comprising a second blocking member, wherein the main arm further comprises a contacting portion extending from a lower end of the main body, when the main arm rotates to a position where the contacting portion of the main arm abuts against the second blocking member, and the second blocking member is adapted to prevent the main arm from rotating about the first axis in a direction.
5. The pill picking apparatus of claim 4 , wherein the second blocking member is substantially flat and lies horizontally.
6. The pill picking apparatus of claim 3 , further comprising a position sensor, wherein the main arm further comprises a breaking portion extending from a lower end of the main body, the position sensor comprises a signal transmitter and a signal receiver, when the main arm rotates to a position where the breaking portion of the main arm breaks a signal transmission between the signal transmitter and the signal receiver, the position sensor determines that the main arm is in the initial position.
7. The pill picking apparatus of claim 6 , wherein the position sensor is substantially U-shaped, and the signal transmitter and the signal receiver face each other.
8. The pill picking apparatus of claim 1 , wherein the linkage mechanism further comprises a cover mounted to the second linkage arm and the third linkage arm for covering a gap between the second linkage arm and the third linkage arm.
9. The pill picking apparatus of claim 1 , further comprising a first resilient member for applying a pulling force to the first linkage arm, wherein an end of the first resilient member is connected to the main arm and another end of the first resilient member is connected to the first linkage arm.
10. The pill picking apparatus of claim 1 , further comprising a second resilient member for applying a pulling force to the holder, wherein an end of the second resilient member is connected to the first linkage arm and another end of the second resilient member is connected to the holder.
11. A pill dispenser, comprising:
a pill box for storing pills;
a main arm being rotatable relative to the pill box;
a linkage mechanism comprising a first linkage arm, a second linkage arm, a third linkage arm, and a holder, wherein the first linkage arm and the second linkage arm are pivotally mounted to the main arm, a first end of the third linkage arm is pivotally mounted to the first linkage arm, a second end of the third linkage arm is pivotally mounted to the second linkage arm, and the holder is pivotally mounted to the second linkage arm;
a picking device mounted to the holder and adapted to pick a pill from the pill box; and
a first blocking member located on a top wall of the pill box, wherein when the main arm rotates to a position where the first linkage arm abuts against the first blocking member, the first blocking member is adapted to drive the first linkage arm to rotate relative to the main arm.
12. The pill dispenser of claim 11 , wherein the pill box defines an opening for allowing the picking device to enter the pill box, the first blocking member is located adjacent to the opening of the pill box.
13. The pill dispenser of claim 12 , wherein the blocking member is inclined relative to the top wall of the pill box.
14. The pill dispenser of claim 13 , wherein the holder comprises a receiving portion for receiving the picking device and a shovel located on an outer side of the receiving portion.
15. The pill dispenser of claim 13 , wherein the main arm is rotatable about a first axis, the main arm comprises a main body and an installation portion extending from an upper end of the main body, the first linkage arm and the second linkage arm are pivotally mounted to the installation portion.
16. The pill dispenser of claim 15 , further comprising a second blocking member, wherein the main arm further comprises a contacting portion extending from a lower end of the main body, when the main arm rotates to a position where the contacting portion of the main arm abuts against the second blocking member, and the second blocking member is adapted to prevent the main arm from rotating about the first axis in a direction.
17. The pill dispenser of claim 15 , further comprising a position sensor adapted to determine whether the main arm is in an initial position, wherein the main arm further comprises a breaking portion extending from a lower end of the main body, the position sensor comprises a signal transmitter and a signal receiver, when the main arm rotates to a position where the breaking portion of the main arm breaks a signal transmission between the signal transmitter and the signal receiver, and the position sensor determines that the main arm is in the initial position.
18. The pill dispenser of claim 11 , wherein the linkage mechanism further comprises a cover mounted to the second linkage arm and the third linkage arm for covering a gap between the second linkage arm and the third linkage arm.
19. The pill dispenser of claim 11 , further comprising a first resilient member for applying a pulling force to the first linkage arm, wherein an end of the first resilient member is connected to the main arm and another end of the first resilient member is connected to the first linkage arm.
20. The pill dispenser of claim 11 , further comprising a second resilient member for applying a pulling force to the holder, wherein an end of the second resilient member is connected to the first linkage arm and another end of the second resilient member is connected to the holder.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW102113010A TW201438969A (en) | 2013-04-12 | 2013-04-12 | Pill picking apparatus |
TW102113010 | 2013-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140308100A1 true US20140308100A1 (en) | 2014-10-16 |
Family
ID=51686913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/243,023 Abandoned US20140308100A1 (en) | 2013-04-12 | 2014-04-02 | Pill picking apparatus |
Country Status (2)
Country | Link |
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US (1) | US20140308100A1 (en) |
TW (1) | TW201438969A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021008303A1 (en) * | 2019-07-18 | 2021-01-21 | 家健科技有限公司 | Automatic medicine sorting and dispensing system |
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US5571258A (en) * | 1995-07-13 | 1996-11-05 | Pearson; Walter G. | Semi-automated medication dispenser |
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USRE35743E (en) * | 1988-09-12 | 1998-03-17 | Pearson Ventures, L.L.C. | Patient medication dispensing and associated record keeping system |
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US8636172B2 (en) * | 2006-01-05 | 2014-01-28 | Lawrence A. Dunn | Devices, systems and methods for point-of-use medication control |
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2013
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Cited By (1)
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WO2021008303A1 (en) * | 2019-07-18 | 2021-01-21 | 家健科技有限公司 | Automatic medicine sorting and dispensing system |
Also Published As
Publication number | Publication date |
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TW201438969A (en) | 2014-10-16 |
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