This disclosure relates to keys and key fobs for vehicles.
Automobiles and other vehicles may use one or more keys to open or unlock doors. The keys may also be used to start the automobile or disarm security features.
A transport clip for attachment to a key fob is provided. The key fob includes a fob body and a key blade, which is selectively rotatable between a stowed position in which the key blade is substantially within the fob body and a deployed position in which the key blade extends away from the fob body.
The transport clip includes a neck at least partially surrounding the key blade. The neck prevents rotation of the transport clip relative to the key blade. The transport clip also includes an ear portion that depresses a latch button of the key fob to an unlocked position. The unlocked position of the latch button allows substantially free rotation, relative to the fob body, of the key blade between the deployed position and the stowed position.
The above features and advantages, and other features and advantages, of the present invention are readily apparent from the following detailed description of some of the best modes and other embodiments for carrying out the invention, as defined in the appended claims, when taken in connection with the accompanying drawings.
Referring to the drawings, wherein like reference numbers correspond to like or similar components wherever possible throughout the several figures, there are shown in
While the present invention is described in detail with respect to automotive applications, those skilled in the art will recognize the broader applicability of the invention. Those having ordinary skill in the art will recognize that terms such as “above,” “below,” “upward,” “downward,” et cetera, are used descriptively of the figures, and do not represent limitations on the scope of the invention, as defined by the appended claims.
The key fob 10 shown in
The key fob 10 includes a fob body 12 and a key blade 14, which is inserted into the ignition or door locks. The key fob 10 may be used to perform many additional functions related to the vehicle or other structures (such as garage door openers). The key blade 14 is a mechanical key, and the key fob 10 includes components that may be referred to as a keyless entry system.
A lockable bearing 16 is disposed within the fob body 12 and attaches the key blade 14 to the fob body 12. The lockable bearing 16 selectively allows rotation between an open or deployed position (shown in
In the configuration shown, the key blade 14 rotates approximately 180 degrees from the stowed position to the deployed position, so that the key blade 14 extends upward (as viewed in
A latch button 18, which is partially hidden from view in
When the key fob 10 is in the stowed position, the key blade 14 may be located within a nesting area 22 defined in the fob body 12. The key fob 10 may include one or more buttons 24, which may remotely control numerous functions, including: keyless entry, trunk or door actuation, or remote engine starts. Instead of, or in addition to, the buttons 24, the key fob 10 may incorporate components of a hands-free keyless system, which allows the vehicle to recognize that the key fob 10 is in proximity and may unlock doors or enable the ignition in response thereto.
The face of the fob body 12 having the buttons 24 may be referred to as the front of the key fob 10. The key fob 10 shown in
As shown in both
The neck 32 prevents rotation of the transport clip 30 relative to the key blade 14. Therefore, as the key blade 14 rotates from the deployed position shown in
In the configuration shown, the neck 32 completely surrounds the key blade 14. This may facilitate mating of the transport clip 30 to the key fob 10, such as at a manufacturing or assembly plant. The transport clip 30 may be attached by, for example, the supplier of the key fob 10, and the transport clip 30 may be assembled to the key fob 10 by sliding the neck 32 over the key blade 14 while the key blade 14 is in the deployed position or an intermediate position.
The transport clip 30 includes an ear portion 34, which extends or cantilevers over the latch button 18 of the key fob 10. The ear portion 34 is configured to move, push, or depress the latch button 18 of the key fob 10 to force the latch button 18 into the unlocked position.
In the configuration of the key fob 10 shown, the latch button 18 is biased into the locked position, in which the latch button 18 is pushed outward from the fob body 12 (toward the view point of
The locked position may lock the key blade 14 in intermediary positions, or may only restrict movement when the key blade 14 is in the stowed position or the deployed position. By depressing the latch button 18 to the unlocked position, the ear portion 34 of the transport clip 30 maintains the latch button 18 in the unlocked position, such that the key blade 14 is free to rotate without restriction from the locking bearing 16 or the latch button 18. Note that the ear portion 34 depresses the latch button 18 regardless of whether the key blade 14 is in the deployed position, the stowed position, or intermediary positions.
The key blade 14 may be biased toward the deployed position—for example, by a spring—such that the key blade 14 tends to open when the latch button 18 is depressed. Therefore, by depressing the latch button 18 and allowing the key blade 14 to freely rotate, the ear portion 34 of the transport clip 30 tends to cause the key blade 14 to move to the deployed position.
By keeping the key blade 14 in the deployed position, the transport clip 30 may facilitate processes occurring during vehicle assembly and manufacture. Additionally, by depressing the latch button 18, the ear portion 34 allows the key blade 14 to rotate relative to the fob body 12 if the fob body 12 is impacted or otherwise subjected to torque. If the latch button 18 is not depressed and the fob body 12 receives an impact or load, the key blade 14 may be bent or the lockable bearing 16 may be damaged.
The transport clip 30 shown in
As shown in
The transport clip 30 may be formed from plastic as the single material, or may be formed from alternative suitable materials. For example, the transport clip 30, including all of the elements and features shown in
Some versions of the key fob 10 may include a transceiver module 42 disposed within the fob body 12. The transceiver module 42 may include a receiver, a transponder, or any combination thereof. The transceiver module 42 may operate on radio, wireless internet, cellular, RFID, or any other communication protocol.
Referring now to
The key fob 110 includes a fob body 112 and a key blade 114, and a transport clip 130 is attached to the key fob 110. The key blade 114 is selectively deployed from a stowed position (not shown) to a deployed position (shown in
The transport clip 130 includes a neck 132, which at least partially surrounds the key blade 114. The neck 132 prevents rotation of the transport clip 130 relative to the key blade 114.
The transport clip 130 also includes an ear portion 134, which extends or cantilevers over the latch button 118 of the key fob 110. The ear portion 134 moves, pushes, or depresses the latch button 118 of the key fob 110. Therefore, the latch button 118 is held in an unlocked position by the ear portion 134, such that the latch button 118 does not prevent rotation of the key blade 114.
The transport clip 30 shown in
A breakable tab 140 is formed on the transport clip 130 and is part of the unitary, one-piece construction with the neck 132 and the ear portion 134. The transport clip 130 may be mated to the key fob 110 by sliding the neck 132 over the key blade 114 while in the deployed position.
The breakable tab 140 engages with some portion of the fob body 112, and prevents relative rotation between the transport clip 130 and the fob body 112. The breakable tab 140 shown in
Some versions of the key fob 110 may include a transceiver module 142 disposed within the fob body 112. The transceiver module 142 may include a receiver, a transponder, or any combination thereof. The transceiver module 142 may operate on radio, wireless internet, cellular, RFID, or any other communication protocol. In some configurations of the key fob 110, the transceiver module 142 may need to be kept in close proximity to the ignition switch, the steering column, or the door lock mechanism for some operations to take place. Therefore, the breakable tab 140 limits the likelihood of rotating the fob body 112 and moving the transceiver module 142 away from the ignition switch while the key blade 114 is engaged therewith.
In the transport clip 130 shown, the locked position of the latch button 118 prevents rotation of the key blade 114 when the key blade 114 is in the stowed position and when the key blade 114 is in the deployed position. The locked position of the latch button 118 subjects the key blade 114—such as by locking the lockable bearing 116—to a first torque relative to the fob body 112. Therefore, if the fob body 112 receives a heavy load, the key blade 114 may be subjected to the first torque, which may be sufficient to bend or otherwise deform the key blade 114.
With the key fob 10 shown in
However, the breakable tab 140 is configured to yield and allow rotation of the key blade 114 away from the deployed position when the key blade 114 is subjected to a second torque relative to the fob body 112. The breakable tab 140 actually generates a force at its point of contact with the fob body 112, but that force results in a reaction torque about the lockable bearing 116.
The breakable tab 140 is configured such that the second torque is less than the first torque. Therefore, the breakable tab 140 will yield and allow the fob body 112 to rotate at lower torque levels than the lockable bearing 116. The key blade 114 is less likely to be deformed under high loads imparted to the fob body 112 while the key blade is engaged with the ignition switch or door locks.
For example, and without limitation, the first torque may be in the range of 80-120 Newtons. Therefore, the lockable bearing 116 subjects the key blade 114 to reaction torque of between 80-120 Newtons. However, the key blade 114 may be bent or damaged under loads of, for example, greater than 50 Newtons. The second torque provided by the breakable tab 140 may be, for example, in the range of 30-40 Newtons. Note that because force applied at a distance results in torque, the two terms may be used interchangeably herein, such that any recitation of force applied or reacted may be converted into torque and vice versa.
Therefore, the transport clip 130 may be configured such that the breakable tab 140 only holds the key blade 114 with approximately 25-50% of the relative reaction torque between the key blade 114 to the fob body 112. The transport clip 130 holds the key blade 114 in the deployed position, but does so with lower reaction torque than the lockable bearing 116 and is less likely to damage the key fob 110.
The breakable tab 140 may alternatively be referred to as, for example and without limitation: a yielding tab, a breakable arm, or a sacrificial tab. Note that the breakable tab 140 need not actually break or fracture. The breakable tab 140 may be configured to yield by plastic deformation when subjected to the second torque. Furthermore, specific yielding points or regions may be formed into the breakable tab 140 to more-precisely control how the transport clip 130 yields when subjected to torque at or above the second torque. Alternatively, the mechanism or structure that holds the breakable tab 140 to the fob body 112 may be configured to lose grip or hold on the fob body 112 when the key blade 114 is subjected to a force resulting in at least the second torque relative to the fob body 112.
As shown in
The molded icon 144 may indicate removability of the transport clip 130 from the key fob 110. Alternatively, or additionally, the molded icon 144 may indicate recyclability of the transport clip 130. In many configurations of the key fob 110 and the transport clip 130, an end-user—such as a purchaser of the vehicle or a retailer of the vehicle—will remove the transport clip 130 from the key fob 110 following completion of assembly and transportation of the key fob 110 and the vehicle.
Referring now to
The key fob 210 and the key fob 310 are similar to the key fob 10 shown in
The key fob 210 shown in
A snap feature 236 is attached to an arm 238 extending to the left (as viewed in
Some versions of the key fob 210 may include a transceiver module 242 disposed within the fob body 212. The transceiver module 242 may include a receiver, a transponder, or any combination thereof. In some configurations of the key fob 110, the transceiver module 242 may need to be kept in close proximity to the ignition switch, the steering column, or the door lock mechanism for some operations to take place. Therefore, the breakable tab 240 limits the likelihood of rotating the fob body 212 and moving the transceiver module 242 away from the ignition switch while the key blade 214 is engaged therewith.
As shown in
A grip element 246 is formed on the end of the breakable tab 240 and may assist in holding the breakable tab 240 to the fob body 212. When torque is applied to the key blade 214 that would cause the key blade 214 to rotate counterclockwise, the breakable tab 240 is placed in tension and reacts against rotation of the key blade 214 relative to the fob body 212.
The breakable tab 240, the grip element 246, or a combination of both may be configured to yield under a torque load that is less than the holding load when the latch button 218 is locked. Therefore, the breakable tab 240 will allow rotation of the key blade 214 under loads which the lockable bearing 216 would not, and the breakable tab 240 may yield under loads which may otherwise damage the key blade 214.
The key fob 310 shown in
A breakable tab 340 extends from the neck 332 down the back (relative to the view of
One or more grip elements 346 are formed on the end of the breakable tab 340 and may assist in holding the breakable tab 340 to the fob body 312. The grip elements 346 attach to, or attach adjacent to, an attachment point 326. Alternatively, the grip elements 346 may attach to the bottom of the fob body 312. When torque is applied to the key blade 314, the breakable tab 340 provides reaction torque and limits rotation of the key blade 314 relative to the fob body 312.
The breakable tab 340, the grip elements 346, or combinations thereof may be configured to yield under force resulting in a torque load that is less than the holding load when the latch button 318 is locked. Therefore, the breakable tab 340 will allow rotation of the key blade 314 under loads that the lockable bearing would not, and the breakable tab 340 may yield under loads which may otherwise damage the key blade 314.
Although not shown, a similar configuration of the transport clip 330 may have the breakable tab 340 extending to the right (as viewed in
The detailed description and the drawings or figures are supportive and descriptive of the invention, but the scope of the invention is defined solely by the claims. While some of the best modes and other embodiments for carrying out the claimed invention have been described in detail, various alternative designs and embodiments exist for practicing the invention defined in the appended claims.
This application claims the benefit of U.S. Provisional Patent Application No. 61/602,780, filed on Feb. 24, 2012, the disclosure of which is hereby incorporated by reference.
Number | Date | Country | |
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61602780 | Feb 2012 | US |