Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
  • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
  • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
  • B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars
• • 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
  • Y10T24/00—Buckles, buttons, clasps, etc.
  • Y10T24/30—Trim molding fastener
  • Y10T24/309—Plastic type

Definitions

• the present invention relates generally to fastening clips, and more specifically to fastening clips commonly associated with automobile applications, such as air bag release systems.
• the current invention is directed to fastening clips that prevent vehicle trim from becoming projectiles within the passenger area of the vehicle during air bag deployment.
• Embodiments of the invention provide a flexible tether having a spring-like function to pull the trim back toward the sheet metal of the vehicle following air bag deployment.
• the fastening clip may include generally rigid arms attached to the vehicle body fastener and trim section fastener, joined by an integral hinge. The hinged arms provide another tether means to prevent the trim section from freely detaching from the vehicle body. Additionally, the hinged arms cause the vehicle trim to move within a controlled arc and therefore in a controlled manner.
• Figure 1 illustrates a perspective view of an embodiment of the fastening clip of the invention, in an as-molded position prior to use.
• Figure 2 illustrates a perspective view of the embodiment of Figure 1 in an assembled position.
• Figure 3 illustrates a perspective view of an embodiment of the fastening clip of the invention having a tether with a different configuration and made from a different material than the other portions of the clip.
• the present invention may be embodied in many forms. Referring to the Figures, there are depicted various aspects of the invention. Referring to Figure 1, an exemplary embodiment of a fastening clip 10 is illustrated, shown in an as-molded position prior to use.
• the fastening clip may be made of any suitable material, such as plastic.
• the fastening clip 10 may be integrally molded, forming a single component, or may be made of numerous parts assembled together.
• the fastening clip 10 of Figure 1 comprises a first fastener 12 and a second fastener 14 with a hinge 16 between the first and second fasteners.
• the first fastener 12 may be configured to provide an attachment portion 18 to attach the clip 10 to a component such as a vehicle body.
• the attachment portion 18 may include a flexible member (as shown in Figure 1) that will permit the clip 10 to snap fit to a component of the vehicle body, as understood in the art.
• Fastener 12 can be of many different configurations suitable for the intended application.
• Clip 10 may include a first generally rigid arm 11 that extends from the attachment portion 18 of the fastener 12 to the hinge 16.
• Clip 10 may also include a post 24 extending outwardly from the generally rigid arm 11 opposite the first fastener 12.
• the post 24 may include a frustum- shaped head 27.
• the post 24 is configured to mate with an aperture or hole 26 formed in fastener 14, and the head 27 will permit the fastener 14 to snap-fit to the post 24, thereby holding the fastener 14 to the post 24.
• Other shapes, structure or configurations are possible and the male/female combination is merely an example of one arrangement for connecting first fastener 12 to second fastener 14.
• Fastener 14 may include a connection portion 20 to connect the fastener 14 to a removable part of a vehicle, for example, a vehicle trim panel.
• the connection portion 20 may define any configuration that may be used to connect the fastener 14 of the clip 10 to a removable part of a vehicle.
• a second generally rigid arm 13 may extend from the connection portion 20 of the second fastener 14 to the integral hinge 16.
• a supporting rib 30 may be used to reinforce the connection portion 20 to the arm 13.
• Fastener 14 may also include the aperture 26 formed in the fastener 14 for receiving the post 24 of the fastener 12, when in an assembled position (as shown by Figure 2).
• fastening clip 10 may include a flexible tether 22 with two ends, a first end 23 attached to arm 11 and a second end 25 that is attachable to fastener 14 and, more specifically, to slot 29 formed in the fastener 14.
• the fasteners 12 and 14 are further connected to each other through the flexible tether 22.
• the second end 25 preferably cooperates with a mating portion 29 formed in the fastener 14.
• the second end 25 includes a cylindrical portion that is adapted to snap-fit into slot 29.
• fasteners 12 and 14 may be directly attached or snapped together when the integral hinge 16 is in a closed position (as illustrated by Figure 2). In one embodiment, this is accomplished by the post 24 engaging with the aperture 26, as discussed above.
• the flexible tether 22 is in an original, non-stretched position.
• the flexible tether 22 is configured to elongate when the fastening clip 10 is opened and the fasteners 12, 14 separate. This would occur, for example, when an air bag is deployed and the trim panel that is attached to fastener 14 is forced away from its mounted position by the force of the air bag.
• the flexible tether 22 will remain attached to both fasteners 12, 14 during separation of the fastener 14 from fastener 12, caused by deployment of the air bag.
• the tether 22 is also configured to contract or spring back, thereby pulling the fasteners 12, 14 back towards each other, after they have been separated in the event of the air bag deploying.
• the tether will pull the fastener 14 and accompanying trim panel, for example, back towards the fastener 12 and the sheet metal to which the fastener 12 is mounted, thereby preventing the trim panel from becoming a projectile during deployment of the air bag.
• the tether 22 may be made from the same material as the fasteners 12, 14, or it may be made of a material different from the material of the fasteners 12, 14.
• the tether may be made of any other suitable material capable of elongating when the fastening clip 10 is opened and then contracting, or springing back, to pull the first and second fasteners back towards each other. Exemplary materials include plastic, rubber and other elastomers; however, any other suitable material that may provide acceptable resiliency may be used.
• the tether may also be over-molded or molded in a two-shot operation.
• the integral hinge 16 may be a swivel hinge molded as a single integral piece.
• the swivel hinge may include a swivel shaft that may be journaled for rotation within the ends of arms 11, 13, as understood by those skilled in the art.
• the hinge may define an open position ( Figure 1) and a substantially closed position ( Figure 2).
• a suitable hinge may be the hinge described in commonly owned U.S. Patent No. 6,053,458, which is incorporated by reference in its entirety. It should be understood that other suitable hinges are contemplated and may be used with the invention.
• FIG 3 shows an embodiment of the fastening clip 10 comprising a tether fabricated as a separate piece from the rest of the clip 10.
• tether 32 may comprise end 34 attachable to the slot 29 formed in the fastener 14, as described above, and may comprise end 36 attachable to a slot 38 formed in the arm 11, similar to the attachment technique described above with respect to end 25 and slot 29.
• the flexible tether will stretch during this movement.
• the elasticity or resiliency of the tether will cause the tether to spring or contract back towards its original position, thereby pulling the fasteners 12 and 14 towards each other.
• the clip 10 may comprise at least two flexible tethers attachable to the first and second fasteners 12, 14.
• the generally rigid first arm 11 and second arm 13 provide for the fastening clip 10 to open in a controlled arc relative to the integral hinge 16. Consequently, as the fastening clip 10 is opened, in the event of an air bag deployment, the trim panel, for example, attached to the second fastener 14 may predictably move only along the arc that is determined by the length of the generally rigid second arm 13, as opposed to a random direction caused by the bouncing or dangling of the component at the end of the flexible tether. This permits controlled movement of the trim panel.
• Yet another aspect of the invention provides the fastening clip 10 with more than one connection between the first fastener 12 and the second fastener 14. Consequently, if either one of the tether or the integral hinge were to become damaged and/or fail during use, a backup would remain to prevent the component attached to the second fastener 14 from becoming a projectile if the fastening clip was caused to be opened.
• an aspect of the invention relates to a vehicle air bag application, for example, wherein the tether, connecting the first and second fasteners, is capable of stretching to both allow the air bag to deploy from behind a trim panel without interference from the fastening clip and to prevent the trim panel from freely separating from the vehicle body.
• a further aspect of the invention provides a tether connecting the first and second fasteners that is capable of stretching to allow unimpeded air bag deployment and also contracting to pull the trim panel back towards its original position on the vehicle body.
• a tether that springs back following elongation during air bag deployment may decrease the probability of the trim piece coming into contact with an occupant, cargo or other portions of the vehicle.
• first and second hinged arms control the movement of the trim panel during air bag deployment.
• the hinged arms and tether provide multiple means to prevent the trim section from freely detaching from the vehicle body and becoming a projectile following deployment of the air bag from behind the trim panel.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Air Bags (AREA)
• Insertion Pins And Rivets (AREA)

Priority Applications (3)

Applications Claiming Priority (4)

Publications (1)

Family

ID=38179516

Family Applications (1)

Country Status (5)

Families Citing this family (20)

Citations (4)

Family Cites Families (26)

• 2006
  • 2006-12-20 US US11/642,454 patent/US7698788B2/en not_active Expired - Fee Related
• 2007
  • 2007-02-12 DE DE602007010598T patent/DE602007010598D1/de active Active
  • 2007-02-12 JP JP2009502780A patent/JP5144640B2/ja not_active Expired - Fee Related
  • 2007-02-12 EP EP07750642A patent/EP1998983B1/en not_active Not-in-force
  • 2007-02-12 WO PCT/US2007/003819 patent/WO2007111791A1/en not_active Ceased

Patent Citations (4)

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