Key holder
A key holder includes a housing which stores a plurality of keys. The keys are presented automatically for use in response to an operator pushing a button. The housing supports a plurality of buttons with each button corresponding to an individual key.
The present application claims priority from my Provisional Patent Application Ser. No. 60/641,897 titled “Key Holder,” filed on Jan. 5, 2005.
FIELD OF THE INVENTIONThe present invention relates generally to the field of key holders and more particularly to a key holder in which keys are stored within a case.
BACKGROUND OF THE INVENTIONConventionally, keys are stored on a single key ring or in a leather case or pouch which has a ring for one or more keys. When a key is required for use, the key must be manually selected either from a conventional key ring or from a pouch. This procedure results in a degree of inconvenience in conditions of dim illumination and especially for elderly users.
OBJECTS AND SUMMARY OF THE INVENTIONIt is an object of the present invention to provide a key holder which presents a single key in response to an operator pushing a button.
Another object of the present invention is to provide a key holder which presents a single key in response to an operator sliding a button.
Another object of the present invention is to provide a key holder which stores keys within a case in a safe and convenient manner.
Yet another object of the present invention is to provide a key holder which comprises a relatively small number of component parts which can be easily manufactured in volume resulting in a relatively low unit cost.
Other objects and advantages of the present invention will be made clear hereinafter.
In accordance with the present invention, there is provided a key case which stores a plurality of keys. The keys are presented automatically for use in response to an operator pushing a button. The key case includes a plurality of buttons with each button corresponding to an individual key. The present invention eliminates the inconvenience of manually selecting a key from a conventional key ring.
BRIEF DESCRIPTION OF THE DRAWINGSOther important advantages of the present invention will be apparent from the following detailed description of the invention taken in connection with the accompanying drawings in which:
With reference to the drawings, there is shown in
It should be understood that the illustration of five keys 36, 38, 40, 42, 44 and five buttons 26, 28, 30, 32, 34 has been for purposes of clarity of illustration and not as a limitation on the present invention. A larger or a smaller number of buttons and keys may be utilized in the present invention.
The operation of the key holder 10 may be described as follows with reference to the various figures.
In the initial condition, all of the keys 36, 38, 40, 42, 44 are retracted within the housing 12. The stop 46 is pushed upward in the direction shown by the arrow 120 in
As is shown in
It should be understood that each of the buttons 24, 26, 28, 30, 32 has a corresponding sliding pin 58 which is identical to the sliding pin 58 which has been illustrated.
The bottom end 74 of the key holder 72 has a pin 76 which enters a hole 78 in the key platform 80.
When the button 26 is depressed, a projecting pin 82 on the bottom 84 of the button 26 bears against the top plate 86. The top plate 86 bears on the vertical side plates 88, 90 and the vertical side plates 88, 90 bear against the bottom plate 92. The bottom plate 92 overcomes the upward force of the helical springs 94, 96 and the bottom plate 92 moves in a downward direction shown by the arrow 98 in
When the selected button 26 is released, stop 102 is pushed upward out of the path of finger 56 and the disk 54 rotates and a projecting pin 104 on the disk 54 which rides in the slot 106 in the key platform 80 drives the selected key 36 forward out of the housing 12 as is shown schematically in
As long as the key 36 is in the extended position, the finger 108 bears against the stop 46. To retract the key 26, the operator pushes any button 28, 30, 32, 34 other than the button 26. The pin 82 on whichever button 28, 30, 32, 34 is pushed presses against the top plate 86 as previously described and the top plate 86 pushes downward on the vertical side plates 88, 90 and the bottom plate 92 is pushed downward.
As a result, stop 46 is pushed downward and the disk 54 rotates until stop 102 is engaged. Continued downward pressure on the button 28, 30, 32, 34 pushes stop 102 downward and the disk 54 rotates past stop 102. The rotation of the disk 54 and the action of the pin 104 and the slot 106 causes the key 36 to retract into the housing 12. The disk 54 continues to rotate until stop 46 bears against finger 56 and the key holder 10 returns to the initial condition as described above with all of the keys 36, 38, 40, 42, 44 retracted and ready for extension.
The slots 122, 124 and the projecting members 132, 134 retain the key 36 while providing a degree of vertical motion.
A second embodiment of the invention 200 is illustrated schematically in
While the action of a single button 202 has been described, it should be understood as previously described that the apparatus 200 includes a button and the associated components described above for each key.
The operation of the first embodiment of the invention 10 shown in
In the initial condition, all of the keys, which are illustrated typically by the key 302, are retracted within the housing 12. As shown in
The button 304 pushes the vertical bar 312 in a downward direction overcoming the spring 313. The corners 314 of the aperture 316 in the vertical bar 312 bears against the catch 318 and the catch 318 pivots and releases the gear wheel 320. The gear 320 is driven by the spring 322 and, in turn, drives the gear 324. The gear 324 drives the screw 326 and the screw 326 is in mesh with threads 328 formed in the tilting block 330.
The tilting block 330 is driven by the screw shaft 326 until the tilting block 330 moves the catches 336, 338 and the catches 336, 338 pivot to engage the vertical bar 312 and to lock the gear wheel as indicated schematically in
The motion of the key holder pin 334 in the direction shown by the arrow 332 drives the key 302 out of the case 12. The locking of the gear 320 locks the mechanism and allows the key 302 to be used to unlock or lock a lock.
The movement of the tilting block 330 drives the triangular members 336, 338 shown in
Pressing the button slightly allows the leaf springs 340 to ride over and lift the ends 342 of the triangular catch members 336, 338. This rotation of the triangular catch members 336, 338 rotates the tilting block 330 and disengages the threaded portion 328 of the tilting block 330 from the screw shaft 326. When the tilting block 326 is disengaged from the screw shaft 326, springs 340 drive the tilting block 330 and the block 342 to the right thereby retracting the key 302 into the housing. During the slight pressing of the button 304, the catch 332 continues to lock the gear wheel 320. The block 342 does not have any threads and is thus free to slide.
Pressing the button 304 fully causes the catch 332 to release the gear wheel 320 as described above. A conventional escapement mechanism may be used to control the pressing of the button and alternates a full pressing and a slight pressing action as shown in
A spring 350 mounted on the block 342 presses against the tilting block 330 into engagement with the screw shaft as shown in
The embodiment of the invention 10 may be powered by a clock spring 332 as shown schematically in
It should also be understood that the illustration of five buttons 616, 618, 620, 622, 624 has been for clarity of illustration and not as a limitation on the present invention. A larger or a smaller number of buttons and keys may be utilized in the present invention.
As is shown in
When the button 624 is pushed in the forward direction shown by the arrow 646 in
The support plate 712 includes guide grooves 714, 716, which ride on guides 718, 720 formed on the housing 708. The support plate 712 includes an integrally formed spring 722 which biases the support plate 712 to the retracted position. The link arm 704 includes an integrally formed spring 724. As indicated previously, sliding the button 726 and the support plate 712 in a forward direction, as shown by the arrow 728 in
As shown in
The foregoing specific embodiments of the present invention as set forth in the specification herein are for illustrative purposes only. Various deviations and modifications may be made within the spirit and scope of the invention without departing from the main theme thereof.
Claims
1. A key holder comprising:
- a housing having a top panel;
- a plurality of keys disposed within said housing;
- a plurality of operating buttons disposed on said top panel;
- a plurality of driving connections connecting, one each, said keys and said operating buttons to drive a selected key from a retracted position disposed in said housing to an extended position projecting from said housing.
2. The key holder according to claim 1 wherein each of said operating buttons can be depressed relative to said top panel.
3. The key holder according to claim 1 wherein each of said operating buttons is slideably mounted on said top panel.
4. The key holder according to claim 1 wherein each of said operating buttons is pivotally mounted on said top panel.
5. The key holder according to claim 1 wherein said driving connections include a rotatably mounted disc.
6. The key holder according to claim 5 further comprising a spring connected to said rotatably mounted disc.
7. The key holder according to claim 1 further comprising a key platform connected to said rotatably mounted disc for selectively driving said keys to said extended position.
8. The key holder according to claim 1 wherein said driving connection comprises:
- a first gear;
- a first rack in mesh with said first gear;
- a second rack connected to said first rack;
- a second gear in mesh with said second rack;
- a pair of link members connected to said second gear and to a selected key for reversibly driving said selected key to an extended position relative to said housing responsive to rotation of said first gear.
9. The key holder according to claim 1 wherein said driving connections comprise:
- a toothed wheel;
- a spring for rotation of said toothed wheel;
- a catch member for engaging said toothed wheel;
- a screw shaft driven by said toothed wheel; and
- a threaded block driven by said threaded block and connected to a selected key for reversibly driving said selected key to an extended position relative to said housing.
10. The key holder according to claim 1 wherein said driving connections comprise:
- a rigid rack member;
- a gear in mesh with said rigid rack member; and
- a flexible rack member in mesh with said gear.
11. The key holder according to claim 1 wherein said driving connections comprise:
- a rigid rack member;
- a gear in mesh with said rigid rack member;
- a drum connected to said gear for rotation with said gear; and
- a belt member connected to said drum and connected to a selected key for reversibly driving said key to an extended position relative to said housing.
12. The key holder according to claim 1 wherein said driving connections comprise:
- a support plate;
- a gear rotatably mounted relative to said support plate;
- a rack member connected to said housing;
- a link member connected to said gear and to a selected key for reversibly driving said key to an extended position relative to said housing.
13. The key holder according to claim 12 wherein said support plate further comprises an integrally formed compression spring.
14. The key holder according to claim 12 wherein said link member further comprises an integrally formed leaf spring.
15. The key holder according to claim 1 wherein each of said buttons further comprises a latch member.
16. The key holder according to claim 1 wherein said driving connections comprise:
- a pivoting link member with said pivoting link member having a first end, an intermediate portion and a second end, with said first end of said pivoting link member connected to a selected button, with said intermediate position pivotally connected to said housing and with said second end connected to a selected key for reversibly driving said selected key to an extended position relative to said housing.
17. The key holder according to claim 16 wherein said driving connections further comprise a plurality of compression springs with said compression springs disposed, one each between a selected button and said housing and urging said button corresponding to a retracted position of said selected key.
18. The key holder according to claim 1 wherein said driving connections comprise:
- a plurality of spring wires each having a first end and a second end;
- a plurality of pivotally mounted buttons, with said first end of said spring wire connected to a selected pivotally mounted button and with said second end of said spring wire connected to a selected key for reversibly driving said selected key to an extended position relative to said housing responsive to operation of said selected pivotally mounted button.
19. The key holder according to claim 1 wherein said driving connections comprise a clockwork spring.
Type: Application
Filed: Jan 4, 2006
Publication Date: Jul 6, 2006
Inventor: Bernardo Beresnitzky (Brooklyn, NY)
Application Number: 11/326,297
International Classification: A45C 11/32 (20060101);