Patent Application
20150330129
None
1. Field of Invention
This invention relates to hinges, specifically to hinges used for doors.
2. Description of Prior Art
For years, door hinges have operated much the same way. A notch is made on the edge of a door as well as the door jamb to accommodate the hinge leafs and allow the hinge leafs to sit flush with the door edge and jamb. Once the hinge is mounted into place, there is very little room for adjustment and if adjustment is needed, further machining of the door and jamb must be made in order for the door to fit properly into the door jamb. Several attempts at solving this problem have been made such as displayed in U.S. Pat. Nos. 7,350,272, 994,196, 2,940,115, 5,799,370 and 6,202,255. These solve the problem, but with considerable retooling of the door and door jamb. The closest invention to this one is U.S. Pat. No. 928,760 (W. F. Hunter) Hunter's hinge solves the problem, but again because of the thickness of his hinge, it would require re-machining a door and door jamb. U.S. Pat. No. 2,373,955 shows a similar mechanism, but requires the hinge pin to be turned in order to adjust the height of the door. This is impractical because the hinge pin should stay rigid in relation to one of the hinge leafs to be stable. This invention solves this problem by providing a mechanism which allows a hinge to be adjusted vertically after the hinge has been mounted and without the need for re-machining the door or door jamb.
This invention is a hinge with a mechanism allowing for vertical adjustment of the hinge leafs.
Several objects and advantages of the present invention are:
A preferred embodiment of the mechanism is illustrated in
A jamb leaf 15 is connected to pin barrels 25, 30, and 35. A door leaf 40 is connected to pin barrels 45 and 50. A jamb leaf 15 and a door leaf 40 are connected to one another by a threaded hinge pin 20 which penetrates pin barrels 25, 45, 30, 50 and 35. Adjusting nuts 55 and 60 are threaded onto a threaded hinge pin 20 in such a manner that adjusting nut 55 resides between the bottom of door leaf pin barrel 45 and the top of jamb leaf pin barrel 30 and adjusting nut 60 resides between the bottom of door leaf pin barrel 50 and the top of jamb leaf pin barrel 35. A threaded hinge pin 20 is rigidly attached to jamb leaf pin barrels 25, 30 and 35 in such a manner that said threaded hinge pin 20 does not pivot within pin barrels 25, 30 and 35. Openings of door leaf pin barrels 45 and 50 are made large enough to allow pin barrels 45 and 50 and thus door leaf 40 to pivot freely about threaded hinge pin 20. Door leaf pin barrel 45 is penetrated by a threaded hinge pin 20 in such a manner that it resides between jamb leaf pin barrel 25 and adjusting nut 55. Door leaf pin barrel 45 is made short enough in relation to the space between jamb leaf pin barrels 25 and 30 as to allow for vertical movement along a threaded hinge pin 20. Likewise door leaf barrel 50 is penetrated by a threaded hinge pin 20 in such a manner that it resides between jamb leaf pin barrels 30 and adjusting nut 60. Door leaf pin barrel 50 is made short enough to allow for vertical movement along a threaded hinge pin 20. Adjusting nut 55 is held in place along a threaded hinge pin 20 by the threads of adjusting nut 55 attached to the threads of threaded hinge pin 20 and by set screw 75. Adjusting nut 60 is held in place along a threaded hinge pin 20 by the threads of adjusting nut 60 attached to the threads of threaded hinge pin 20 and by set screw 80. Door leaf pin barrels 45 and 50 are held in place at the desired location along a threaded hinge pin 20 by adjusting nuts 55 and 60 and respective set screws 75 and 80. An adjustable hinge 10 is attached to a door and respective door jamb by door leaf mounting screws 72 penetrating door leaf screw holes 70 anchoring a door leaf jamb 40 to a door 85 and jamb leaf mounting screws 68 penetrating jamb leaf holes 65 anchoring a jamb leaf 15 to a door jamb 90.
FIG. 4—Additional Embodiment
An additional embodiment is shown in
Operation—FIGS. 1,2 and 3
The manner in which one uses an adjustable hinge 10 consists first of attaching the jamb leaf 15 to the door jamb 90 using jamb leaf mounting screws 68 inserted through jamb leaf mounting holes 65. The jamb leaf mounting screws 68 are subsequently driven into the door jamb 90 holding the jamb leaf 15 firmly against the surface of the door jamb 90. The door leaf 40 is attached to the edge of a door 85 by first inserting the door leaf mounting screws 72 through the door leaf mounting holes 70. The door leaf mounting screws 72 are subsequently driven into the edge of the door 85 holding the door leaf 40 firmly against the door 85. Adjusting nuts 55 and 60, being threaded onto the threaded hinge pin 20, will move vertically along the length of the threaded hinge pin 20 by turning them in a clockwise or counter-clockwise direction, depending on the bias of the threads. After the adjustable hinge 10 is mounted to the door 85 and door jamb 90, the height of the door 85 can be adjusted by turning the adjusting nuts 55 and 60 in the direction that facilitates the desired vertical motion, either up or down , of the door. Pressure from the top surfaces of the adjusting nuts 55 and 60 against the bottoms of the door leaf pin barrels 45 and 50 causes the door leaf 40 and thus the attached door 85 to be moved vertically in the same direction as the vertical motion of the adjusting nuts 55 and 60. Once the desired height of the door 85 is reached by turning the adjusting nuts 55 and 60, the adjusting nuts 55 and 60 can be secured by driving the set screws 75 and 80 into the adjusting nuts 55 and 60 and against the threaded hinge pin 20.
The reader will see the mechanism of the invention provides the user with a useful method of adjusting the height of a door without the need for additional machining of the door or door jamb.
While my above description contains many specificities, these should not be construed as limitation on the scope of the invention, but rather as an exemplification of one preferred embodiment thereof. Many other variations are possible. For example, the adjustable hinge can be reversed. It can be installed with the jamb leaf attached to the door and the door leaf attached to the door jamb.
The size and shape of the invention should not be construed to be limited to the preferred embodiment, but may be of any size or shape that would be useful for a particular implementation. For example the size of the adjustable hinge could be scaled down to be useful for small cabinet doors, or scaled up to accommodate large barn doors. The shape could be made in any form that is practical and/or aesthetically pleasing. The adjustable hinge could also be used on lids where the adjustment is needed in the horizontal, instead of the vertical direction.
