US3871054A - Dolly and method of using it to hang a door - Google Patents
Dolly and method of using it to hang a door Download PDFInfo
- Publication number
- US3871054A US3871054A US450094A US45009474A US3871054A US 3871054 A US3871054 A US 3871054A US 450094 A US450094 A US 450094A US 45009474 A US45009474 A US 45009474A US 3871054 A US3871054 A US 3871054A
- Authority
- US
- United States
- Prior art keywords
- door
- frame
- dolly
- bight portion
- lever arm
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F15/00—Crowbars or levers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/0083—Wheeled supports connected to the transported object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
- B62B1/26—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor characterised by supports specially adapted to objects of definite shape
- B62B1/268—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor characterised by supports specially adapted to objects of definite shape the objects being plates, doors, panels or the like
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53796—Puller or pusher means, contained force multiplying operator
- Y10T29/53896—Puller or pusher means, contained force multiplying operator having lever operator
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
Abstract
The dolly has a U-shaped door-receiving frame with outwardlyextending lever arms at the upper end of each side member. Wheels are attached to the frame by coaxial axles located below the vertical center of the side members. By stepping on one of the lever arms, the frame is swung, thereby selectively lifting a door supported on the dolly to align the hinges with hinges on a door frame.
Description
United States Patent 1191 Schaefer 1451 Mar. 18, 1975 DOLLY AND METHOD OF USING IT TO HANG A DOOR [76] Inventor: Theodore S. Schaefer, 3022 W.
Scott Ave., McHenry, 111. 60050 [22] Filed: Mar. 11, 1974 [2]] Appl. No.: 450,094
[52] U.S. Cl 29/267, 29/464, 52/749, 214/1 D, 254/8 R, 254/131 [51] Int. Cl 1366f 3/00 [58] Field of Search 214/1 R, 1 SW, 1 D, l H, 214/152; 254/8 R, 131; 29/267, 464; 52/749, 741; 269/17 [56] References Cited UNITED STATES PATENTS 1,288,882 12/1918 Hartough ..254/8R 1,753,480 4/1930 Rocholl 254/131 2,503,388 4/1950 Hedlund 214/1 D 2,653,006 9/1953 Lewis 254/131 2,937,850 5/1960 Winkler et a1. 254/8 R 2,967,627 1/1961 Vinson 214/1 D 3,667,728 6/1972 Garelicu 254/131 X Primary ExaminerFrank E. Werner [57] ABSTRACT The dolly has a U-shaped door-receiving frame with outwardly-extending lever arms at the upper end of each side member. Wheels are attached to the frame by coaxial axles located below the vertical center of the side members. By stepping on one of the lever arms, the frame is swung, thereby selectively lifting a door supported on the dolly to align the hinges with hinges on a door frame.
6 Claims, 4 Drawing Figures DOLLY AND METHOD OF USING IT TO HANG A 1 DOOR BACKGROUND The invention pertains generally to wheeled vehicles, and more particularly to dollies.
Applicants prior U.S. Pat. No. 3,717,357, issued Feb. 20, 1973, disclosed an adjustable dolly for transporting doors or other construction materials. Other dollies are shown in U.S. Pat. No. 2,816,771 issued Dec. 17, 1957 to E. R. Hunt, and U.S. Pat. No. 3,090,635 issued May'2l, 1963 to M. I. Masterson, Jr. None of these prior constructions are suitable for selectively raising a door for hanging. When hanging a large or heavy door, for example a fire door or hospital door, it is nearly impossible for a single workman to accomplish it alone. It is desirable therefore, to provide a dolly which serves a dual purpose for transporting a door and as an aid in hanging the door.
SUMMARY The present invention relates to an improved dolly and to a method of using it to hang a door.
An object of the present invention is to provide a dolly which may be used both for transporting and hanging a door.
Another object is to provide a dolly which is manually pivotable about the axis of the wheels to selectively lift the item supported on the dolly.
Still another object is to provide a dolly in accordance with the foregoing object and having an outwardly extending lever arm which can be used for the lifting operation.
Yet another object is to provide an improved method for hanging a door, which method can be performed quickly and easily by one workman.
These, and other objects and advantages of the present invention, will become apparent as the same becomes better understood from the following detailed description when taken in conjunction with the accompanying drawings.
DRAWINGS FIG. 1 is an elevational view of a door mounted on a dolly constructed in accordance with the present invention;
FIG. 2 is a larger-scale view of the dolly, partly in elevation and partly in cross-section;
FIG. 3 is a sectional view taken along line 33 of FIG. 2 and showing a moved position in phantom lives; and
FIG. 4 is a fragmentary perspective view illustrating the dolly being used to hang a door.
DESCRIPTION Reference is now made more particularly to the drawings which illustrate the best presently known mode of carrying out the invention and wherein similar reference characters indicate the same parts throughout the several views.
The dolly, indicated generally by the numeral 10, includes an elongated, U-shaped door-receiving frame formed of opposite side members 11, 12 having lower ends interconnected by a bight portion 13. The side members are spaced apart slightly greater than the thickness of a door 16 so that the bottom or edge of the door is supported on the bight portion 13. Coaxially arranged horizontal axles l7, 18 are welded or otherwise suitably secured to the outer side of side members 11, 12, respectively. A pair of upright, parallel, floorengaging wheels 20 are each rotatably mounted on one of the axles.
Lever arms 21 and 22 extend outwardly from the top end of side members 11 and 12, respectively. By engaging one of the lever arms with ones foot F, the frame may be swung about the axis of the wheels and axles to raise the bight portion 13 and thereby lift the door. For this purpose, the lever arms are advantageously at about to the side members and extend outwardly a distance sufficient to be easily engaged by a workmans foot. To provide leverage, the axles l7 and 18 are preferably below the vertical center of the side members and, in the embodiment shown, are at about the quarter point from the bottom. This gives about a 3 to 1 leverage.
In the embodiment illustrated, the U-shaped frame and lever arms 21, 22 are unitary, being formed from 3/16 X 1% inch steel. The lever arms 21, 22 extend outwardly about 2% inch and their upper surfaces, as well as the inside of the U-shaped frame, are covered by a layer of cushioning material 30. The cushioning material serves to protect the surface of the door 16, and is preferably of fiberous material, such as thin carpeting, but may also be sheet rubber or equivalent material. The bight portion 13 is positioned inch above a floor 31, as shown by dimension A in FIG. 3. The axles 17, 18 are 1% inch above the bottom of the bight portion. The side members 11, 12 are 7 inches long and spaced apart to receive the door 16 therebetween. For this purpose the side members diverge slightly, for example l/16 inch. In the embodiment illustrated, the distance between the layers of cushioning material at the axles is 1% inch. The wheels are 4 inches in diameter and advantageously have rubber tires and ball bearings for ease in running. Preferably, the lever arms 21, 22 terminate inwardly of the wheels 20.
By swinging the side members l1, 12 about 30 from the vertical, as shown by angle B in FIG. 3, the cushioning material on the bight portion 13 will have one end raised about 1 inch above the floor, as shown by dimension C. Greater or lesser swinging will adjust the level of the bottom of the door 16 so that its hinge portion 32 will align with the hinge portions 33 on the door frame 34. It is necessary that the dolly be swingable through an arc sufficient to achieve such alignment and, as seen in FIG. 3, the present construction is such that the bight portion 13 never touches the floor 31.
In use, the door 16 is supported on the dolly 10 with the bottom of the door on the bight portion 13. The door is wheeled into position adjacent the door frame 34. The workman may then step on the lever arm 21 or 22, causing the U-shaped frame to pivot about the axles 17, 18. This raises the bight portion 13 and lifts the door 16. Adjusting the portion of the lever arm, as described above, align the hinge portions 32 and 33, and the hinge pin is then dropped into place. This can be performed by a single workman even if the door is quite large and/or heavy. e
While a preferred embodiment of the invention has herein been illustrated and described, this has been done by way of illustration and not limitation, and the invention should not be limited except as required by the scope of the appended claims.
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A dolly comprising an elongated substantially U- shaped door-receiving frame including a pair of spaced side members having their lower ends connected by a bight portion; coaxially disposed horizontal axles each secured to one of the side members; a pair of upright, parallel floor-engaging wheels each rotatably mounted on one of said axles; said frame and wheels so constructed and arranged that the bight portion is supported at a level above the floor and the frame is rotatable through at least 120 about said axles without the bight portion ever engaging the floor; and means on at least one of the side members for manually rotating said frame, whereby a door supported by the frame may be raised.
2. A dolly as set forth in claim 1 wherein the lastmentioned means includes a lever arm secured to the side member and extending outwardly therefrom.
3. A dolly as set forth in claim 2 wherein there is a lever arm attached at the upper end of each side member at an angle of about thereto.
4. A dolly as set forth in claim 3 wherein the axles are secured to the side member below the vertical center thereof.
5. A dolly as set forth in claim 4 including a layer of cushioning material on said U-shaped frame and also on the upper surface of the lever arms.
6. A method of hanging a door including the steps of:
supporting the door on a dolly having a U-shaped frame with a bight portion underlying the door bottom, and having a lever arm extending outwardly from at least one side of the frame;
wheeling the door to a position adjacent the door frame;
stepping on the lever arm and causing the U-shaped frame to pivot about the axis of the wheels, thereby raising the bight portion and lifting the door vertically; and
adjusting the position of the lever arm until the hinge portions on the door align with the hinge portions on the door frame.
Claims (6)
1. A dolly comprising an elongated substantially U-shaped door-receiving frame including a pair of spaced side members having their lower ends connected by a bight portion; coaxially disposed horizontal axles each secured to one of the side members; a pair of upright, parallel floor-engaging wheels each rotatably mounted on one of said axles; said frame and wheels so constructed and arranged that the bight portion is supporTed at a level above the floor and the frame is rotatable through at least 120* about said axles without the bight portion ever engaging the floor; and means on at least one of the side members for manually rotating said frame, whereby a door supported by the frame may be raised.
2. A dolly as set forth in claim 1 wherein the last-mentioned means includes a lever arm secured to the side member and extending outwardly therefrom.
3. A dolly as set forth in claim 2 wherein there is a lever arm attached at the upper end of each side member at an angle of about 90* thereto.
4. A dolly as set forth in claim 3 wherein the axles are secured to the side member below the vertical center thereof.
5. A dolly as set forth in claim 4 including a layer of cushioning material on said U-shaped frame and also on the upper surface of the lever arms.
6. A method of hanging a door including the steps of: supporting the door on a dolly having a U-shaped frame with a bight portion underlying the door bottom, and having a lever arm extending outwardly from at least one side of the frame; wheeling the door to a position adjacent the door frame; stepping on the lever arm and causing the U-shaped frame to pivot about the axis of the wheels, thereby raising the bight portion and lifting the door vertically; and adjusting the position of the lever arm until the hinge portions on the door align with the hinge portions on the door frame.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US450094A US3871054A (en) | 1974-03-11 | 1974-03-11 | Dolly and method of using it to hang a door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US450094A US3871054A (en) | 1974-03-11 | 1974-03-11 | Dolly and method of using it to hang a door |
Publications (1)
Publication Number | Publication Date |
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US3871054A true US3871054A (en) | 1975-03-18 |
Family
ID=23786740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US450094A Expired - Lifetime US3871054A (en) | 1974-03-11 | 1974-03-11 | Dolly and method of using it to hang a door |
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US (1) | US3871054A (en) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010931A (en) * | 1976-03-26 | 1977-03-08 | Lawrence Wheeler | Door lifting and holding tool |
US4043536A (en) * | 1976-02-19 | 1977-08-23 | Almond Lloyd T | Door dolly and jack |
FR2523943A1 (en) * | 1982-03-29 | 1983-09-30 | Marais Serrurerie | Guide for mounting and dismounting door - has roller frame and pedal operated lifting gear to adjust vertical position |
US4695067A (en) * | 1986-04-03 | 1987-09-22 | Willey Robert P | Wheeled article carrier |
GB2226005A (en) * | 1988-12-15 | 1990-06-20 | Steven Floyd Griffiths | Door hanging aids |
US4978132A (en) * | 1989-09-14 | 1990-12-18 | Wilson P Henry | Pivotable hand truck apparatus |
US5048850A (en) * | 1990-09-17 | 1991-09-17 | Mcdonald Don C | Wheeled article carrier |
US5135200A (en) * | 1991-06-12 | 1992-08-04 | Neibrandt Kirk B | Snowmobile jack |
US5284410A (en) * | 1992-09-24 | 1994-02-08 | Ante Sare | Device for carrying large sheet material |
US5447406A (en) * | 1994-03-18 | 1995-09-05 | Voss; Francis | Portable truck ramp |
US5501561A (en) * | 1994-01-21 | 1996-03-26 | Wulff; Lawrence H. | Foot mountable drywall positioning device |
US5584635A (en) * | 1995-10-16 | 1996-12-17 | Stapelmann; Frank | Carriage for a construction panel |
US6022008A (en) * | 1998-02-11 | 2000-02-08 | Bachman; David | Door hanging jack |
US6264184B1 (en) | 1999-01-26 | 2001-07-24 | David Armstrong | Door carrier |
US6378191B1 (en) * | 1999-11-26 | 2002-04-30 | James County | Method and apparatus for hanging doors |
US6471273B1 (en) * | 2000-08-14 | 2002-10-29 | Industrial Magnetics, Inc. | Lifting magnet with roller cam release mechanism |
US6497399B1 (en) * | 2002-05-28 | 2002-12-24 | Mark S. Nelson | Compact panel lifter |
US6505844B2 (en) | 2001-02-16 | 2003-01-14 | David Hallman | Door transporting and support system |
FR2850645A1 (en) * | 2003-02-05 | 2004-08-06 | Gilbert Bobeda | Door assembling and disassembling lever, has arm provided with folded base end placed under door to raise door under swinging action of arm where end possesses length to move door vertically under swinging action of arm |
US6866274B1 (en) * | 2003-04-16 | 2005-03-15 | Lewis A. Muscat | Article transport dolly |
US6904732B1 (en) * | 2000-11-27 | 2005-06-14 | Frank M. Richmond | Device and method for installing building material |
FR2871766A1 (en) * | 2004-06-17 | 2005-12-23 | Guillore Jean Noel | Doors e.g. hinged doors, installing and maintaining apparatus, has lever whose long arm is in form of pedal that is powered by foot of operator for lifting door |
US20060137290A1 (en) * | 2004-12-22 | 2006-06-29 | Lawrence Boucher | Device for holding and positioning construction materials |
US20060151967A1 (en) * | 2005-01-12 | 2006-07-13 | Conway Perry F | Apparatus and method for transporting construction material |
US20080040863A1 (en) * | 2004-06-17 | 2008-02-21 | Jean-Noel Guillore | Apparatus for Setting, Removing and Maintaining Doors |
US7896367B1 (en) | 2007-12-03 | 2011-03-01 | Suprono Kurt M | Panel carrier and lifter |
US8162329B1 (en) * | 2010-11-18 | 2012-04-24 | Paul Openshaw | Material transporter |
US20130251487A1 (en) * | 2011-12-08 | 2013-09-26 | Dale Cooper | Transport Device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1288882A (en) * | 1916-09-23 | 1918-12-24 | Sven P Alquist | Mechanism for hanging car-doors and the like. |
US1753480A (en) * | 1927-02-11 | 1930-04-08 | Valentine C Rocholl | Door support |
US2503388A (en) * | 1948-01-12 | 1950-04-11 | Hedlund Carl Leonard | Door hanger and trolley |
US2653006A (en) * | 1950-01-06 | 1953-09-22 | Gem Oil Tool Company Inc | Pipe lifter |
US2937850A (en) * | 1956-11-30 | 1960-05-24 | Gen Electric | Desk mobile lifter |
US2967627A (en) * | 1958-06-23 | 1961-01-10 | Marvin M Vinson | Door dolly and jack |
US3667728A (en) * | 1970-08-21 | 1972-06-06 | Garelick Mfg Co | Self-loading dolly |
-
1974
- 1974-03-11 US US450094A patent/US3871054A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1288882A (en) * | 1916-09-23 | 1918-12-24 | Sven P Alquist | Mechanism for hanging car-doors and the like. |
US1753480A (en) * | 1927-02-11 | 1930-04-08 | Valentine C Rocholl | Door support |
US2503388A (en) * | 1948-01-12 | 1950-04-11 | Hedlund Carl Leonard | Door hanger and trolley |
US2653006A (en) * | 1950-01-06 | 1953-09-22 | Gem Oil Tool Company Inc | Pipe lifter |
US2937850A (en) * | 1956-11-30 | 1960-05-24 | Gen Electric | Desk mobile lifter |
US2967627A (en) * | 1958-06-23 | 1961-01-10 | Marvin M Vinson | Door dolly and jack |
US3667728A (en) * | 1970-08-21 | 1972-06-06 | Garelick Mfg Co | Self-loading dolly |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4043536A (en) * | 1976-02-19 | 1977-08-23 | Almond Lloyd T | Door dolly and jack |
US4010931A (en) * | 1976-03-26 | 1977-03-08 | Lawrence Wheeler | Door lifting and holding tool |
FR2523943A1 (en) * | 1982-03-29 | 1983-09-30 | Marais Serrurerie | Guide for mounting and dismounting door - has roller frame and pedal operated lifting gear to adjust vertical position |
US4695067A (en) * | 1986-04-03 | 1987-09-22 | Willey Robert P | Wheeled article carrier |
GB2226005A (en) * | 1988-12-15 | 1990-06-20 | Steven Floyd Griffiths | Door hanging aids |
US4978132A (en) * | 1989-09-14 | 1990-12-18 | Wilson P Henry | Pivotable hand truck apparatus |
US5048850A (en) * | 1990-09-17 | 1991-09-17 | Mcdonald Don C | Wheeled article carrier |
US5135200A (en) * | 1991-06-12 | 1992-08-04 | Neibrandt Kirk B | Snowmobile jack |
US5284410A (en) * | 1992-09-24 | 1994-02-08 | Ante Sare | Device for carrying large sheet material |
US5501561A (en) * | 1994-01-21 | 1996-03-26 | Wulff; Lawrence H. | Foot mountable drywall positioning device |
US5447406A (en) * | 1994-03-18 | 1995-09-05 | Voss; Francis | Portable truck ramp |
US5584635A (en) * | 1995-10-16 | 1996-12-17 | Stapelmann; Frank | Carriage for a construction panel |
US6022008A (en) * | 1998-02-11 | 2000-02-08 | Bachman; David | Door hanging jack |
US6264184B1 (en) | 1999-01-26 | 2001-07-24 | David Armstrong | Door carrier |
US6378191B1 (en) * | 1999-11-26 | 2002-04-30 | James County | Method and apparatus for hanging doors |
US6471273B1 (en) * | 2000-08-14 | 2002-10-29 | Industrial Magnetics, Inc. | Lifting magnet with roller cam release mechanism |
US6904732B1 (en) * | 2000-11-27 | 2005-06-14 | Frank M. Richmond | Device and method for installing building material |
US6505844B2 (en) | 2001-02-16 | 2003-01-14 | David Hallman | Door transporting and support system |
US6497399B1 (en) * | 2002-05-28 | 2002-12-24 | Mark S. Nelson | Compact panel lifter |
FR2850645A1 (en) * | 2003-02-05 | 2004-08-06 | Gilbert Bobeda | Door assembling and disassembling lever, has arm provided with folded base end placed under door to raise door under swinging action of arm where end possesses length to move door vertically under swinging action of arm |
US6866274B1 (en) * | 2003-04-16 | 2005-03-15 | Lewis A. Muscat | Article transport dolly |
FR2871766A1 (en) * | 2004-06-17 | 2005-12-23 | Guillore Jean Noel | Doors e.g. hinged doors, installing and maintaining apparatus, has lever whose long arm is in form of pedal that is powered by foot of operator for lifting door |
US20080040863A1 (en) * | 2004-06-17 | 2008-02-21 | Jean-Noel Guillore | Apparatus for Setting, Removing and Maintaining Doors |
US20060137290A1 (en) * | 2004-12-22 | 2006-06-29 | Lawrence Boucher | Device for holding and positioning construction materials |
US7387293B2 (en) * | 2004-12-22 | 2008-06-17 | Lawrence Boucher Construction Inc. | Device for holding and positioning construction materials |
US20060151967A1 (en) * | 2005-01-12 | 2006-07-13 | Conway Perry F | Apparatus and method for transporting construction material |
US7896367B1 (en) | 2007-12-03 | 2011-03-01 | Suprono Kurt M | Panel carrier and lifter |
US8162329B1 (en) * | 2010-11-18 | 2012-04-24 | Paul Openshaw | Material transporter |
US20130251487A1 (en) * | 2011-12-08 | 2013-09-26 | Dale Cooper | Transport Device |
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