Search

JP-7857178-B2 - Reinforcement fabric fixing structure and vehicle seat equipped therewith

JP7857178B2JP 7857178 B2JP7857178 B2JP 7857178B2JP-7857178-B2

Inventors

  • 鈴木 聖吾
  • 小池 敦

Assignees

  • 株式会社タチエス

Dates

Publication Date
20260512
Application Date
20220706

Claims (20)

  1. A fixing structure for a reinforcing fabric in a vehicle seat equipped with an airbag system, An airbag module fixed to the seat frame of the aforementioned vehicle seat, A first reinforcing fabric and a second reinforcing fabric surround the airbag module together with the seat frame and guide the inflating airbag to the airbag outlet on the seat surface, A locking portion is provided at the first end of the first reinforcement fabric on the side opposite to the airbag outlet side, A fixing portion provided at the second end of the second reinforcement fabric opposite to the airbag outlet side, A locking member comprising a rigid member, having a fixing portion to which the fixed portion of the second reinforcing cloth is pre-fixed, and a locking portion for hooking and locking the locked portion of the first reinforcing cloth, A fixing structure for the reinforcing fabric, equipped with the following features.
  2. The fixing structure for the reinforcing cloth according to claim 1, wherein the locking portion of the locking member is formed in a hook shape.
  3. The fixing structure for the reinforcing cloth according to claim 2, wherein the locking portion is formed in a hook shape by a slit portion shaped to allow the locking portion of the first reinforcing cloth to be inserted.
  4. The fixing structure for the reinforcing cloth according to claim 3, wherein the locking portion has a retaining portion formed therein that prevents the locked portion inserted into the slit portion from coming out of the slit portion.
  5. The fixing structure for a reinforcing cloth according to claim 3, wherein the locking portion has a guiding portion formed thereon that guides the locked portion into the slit portion when it is inserted into the slit portion.
  6. The fixing structure for the reinforcement cloth according to claim 5, wherein the guide portion is formed to protrude from the entrance of the slit portion in the direction in which the locking portion is located.
  7. The fastening portion of the first reinforcing fabric is formed by folding back the first end of the first reinforcing fabric and sewing it into a loop, as described in claim 3.
  8. The fixing structure for a reinforcing cloth according to claim 1, further comprising a fixing member for fixing the locking member to the sheet frame while the locking portion of the first reinforcing cloth is locked to the locking portion of the locking member.
  9. The fixing structure for a reinforcing cloth according to claim 8, wherein the locking member is provided with a fixed portion into which the fixing member is locked.
  10. The fixing structure for the reinforcement cloth according to claim 1, wherein the locking member is made of sheet metal bent into an L-shape.
  11. A fixing structure for a reinforcing fabric in a vehicle seat equipped with an airbag system, An airbag module fixed to the seat frame of the aforementioned vehicle seat, A first reinforcing fabric and a second reinforcing fabric surround the airbag module together with the seat frame and guide the inflating airbag to the airbag outlet on the seat surface, A rigid insert member is provided at the first end of the first reinforcement fabric opposite to the airbag outlet side, A bag-shaped insertion portion into which the insertion member can be inserted is provided at the second end of the second reinforcement fabric opposite to the airbag outlet side, A fixing structure for the reinforcing fabric, equipped with the following features.
  12. The fixing structure for a reinforcing cloth according to claim 11, further comprising a fixing member for fixing the first end of the first reinforcing cloth and the second end of the second reinforcing cloth to the seat frame while the insertion member is inserted into the insertion portion.
  13. The insertion portion is formed into a bag shape by folding back a portion of the second end of the second reinforcing fabric and sewing both sides of the overlapping portion, as described in claim 11.
  14. The aforementioned insertion member includes a rigid core material, wherein the fixing structure for the reinforcing cloth is as described in claim 12.
  15. The fixing structure for the reinforcing cloth according to claim 14, wherein the core material is provided with a fixing through-hole for passing the fixing member through.
  16. The fixing structure for the reinforcing cloth according to claim 15, wherein a fixing through-hole is provided in the insertion portion at a position that overlaps with the fixing through-hole when the core material is inserted into the insertion portion.
  17. The fixing structure for the reinforcing fabric according to claim 16, wherein the insertion member is inserted into the insertion portion, and then the first end of the first reinforcing fabric and the second end of the second reinforcing fabric are rotated around the insertion portion to wind and overlap, and then fixed to the sheet frame by the fixing member.
  18. The fixing structure for the reinforcing fabric according to claim 17, wherein openings are provided at the first end of the first reinforcing fabric and the second end of the second reinforcing fabric to expose the fixing through-hole when the fabric is rotated and overlapped.
  19. The fixing structure for a reinforcing cloth according to claim 18, wherein the opening is composed of a slit provided along the longitudinal direction of the first end of the first reinforcing cloth and the second end of the second reinforcing cloth.
  20. The fixing structure for a reinforcing cloth according to claim 11, further comprising a tightening member for tightening the insertion portion and the insertion member when the insertion member is inserted into the insertion portion.

Description

This invention relates to a fixing structure for a reinforcing fabric and a vehicle seat equipped therewith. In vehicle seats, a side airbag system is used that, in the event of a collision, activates the gas generating mechanism of the airbag module to inflate and deploy a side airbag between the occupant's upper body and the side door (see, for example, Patent Document 1). Such side airbag systems are located on the side of the seat, either on the door side or the center side of the vehicle. When the airbag module is activated, the airbag stored inside inflates, rupturing the seat pad and trim cover (seat cover) and ejecting to the outside of the seat. For the airbag module to function properly, the airbag must eject from an airbag outlet located in a predetermined area of the seat. Therefore, to ensure the airbag ejects reliably from the airbag outlet 106', reinforcing fabrics 10' and 20' are provided inside the seat to connect the airbag module and the airbag outlet 106' and guide the inflating airbag to the airbag outlet 106' (see Figures 13-15). The reinforcing fabrics 10' and 20' are typically positioned between the airbag module 202' and the seat pad 104', and their ends are fixed to the seat frame 102' via fixing members 300'. There are two main types of structures for securing the reinforcing fabrics 10' and 20': a bag structure (so-called bag type) and a sheet metal structure (so-called sheet metal type). The bag structure involves fixing the ends of the two reinforcing fabrics 10' and 20' to the seat frame 102' to form a bag, and then attaching the seat pad 104' and airbag module 202'. While this method has fewer parts and lower costs, the process of installing the airbag module 202' between the reinforcing fabrics 10' and 20', while spreading out the seat pad 104', is quite complicated and therefore less efficient. In contrast, the sheet metal structure involves first fixing the airbag module 202' to the seat frame 102', then covering it with the reinforcing fabrics 10' and 20', and finally securing the sheet metal 310' and 320' at the ends of the reinforcing fabrics 10' and 20' with rivets 303' or bolts. This method offers significantly better workability in terms of airbag module 202' installation. Japanese Patent Publication No. 2008-037261 This is a perspective view showing an example of a vehicle seat equipped with a side airbag system.This is a plan view showing an example of a fixing structure for a reinforcing cloth in the first embodiment of the present invention.This figure shows a magnified view of the area circled with a dashed line in Figure 2.This figure shows an example of a first reinforcing cloth, a second reinforcing cloth, and a locking member.This diagram shows the process of inserting the part of the first reinforcement fabric that is to be locked into the slit of the locking member.This diagram shows a locking member fixed to the seat frame with rivets.This figure shows an example of a fixing structure for reinforcing fabric inside a vehicle seat.This figure shows the first and second reinforcing fabrics in a second embodiment of the present invention.This diagram shows how the insertion member of the first reinforcement fabric is inserted into the insertion part of the second reinforcement fabric.This diagram shows the state in which the insertion member of the first reinforcement fabric is inserted into the insertion part of the second reinforcement fabric.This diagram shows the process of fastening the insertion part of the first reinforcement fabric and the insertion part with a fastening member, with the insertion part of the second reinforcement fabric inserted into the insertion part of the second reinforcement fabric.This diagram shows the state in which the insertion member of the first reinforcing cloth is inserted into the insertion portion of the second reinforcing cloth, and then the first end of the first reinforcing cloth and the second end of the second reinforcing cloth are rotated around the insertion portion to wind and overlap.This is a plan view showing an example of a conventional fixing structure for a reinforced fabric, for reference.This diagram shows an example of a conventional reinforcing cloth for reference.This diagram shows, for reference, an example of a conventional fixing structure for reinforcing fabric inside a vehicle seat. Preferred embodiments of the present invention will be described in detail with reference to the drawings (see Figures 1 to 12). The reinforcing fabric fixing structure 1 according to the present invention is a structure for fixing the reinforcing fabric within a vehicle seat 100 equipped with an airbag device 200 (see Figures 1, 7, etc.). Below, we will first describe the vehicle seat 100 equipped with the airbag device 200, and then describe the reinforcing fabric fixing structure 1. <Vehicle seats equipped with airbags> The vehicle seat 100 is a seat installed in a vehicle such as an automobile, and comprises a se