Reinforcement fabric fixing structure and vehicle seat equipped therewith

Abstract

To provide a fixing structure of webbing that can improve workability in mounting webbing and further contribute to cost reduction, and a vehicular seat comprising the same.SOLUTION: A fixing structure 1 of webbing in a vehicular seat comprising an airbag device is provided with: an airbag module 202 that is fixed to a seat frame 102 of the vehicular seat; first webbing 10 and second webbing 20 which surround the airbag module 202 together with the seat frame 102 and guide an inflated airbag to an airbag outlet 106 on a surface of the seat; a part 15 to be locked provided at a first end part 10t of the first webbing 10; a part 25 to be fixed provided at a second end part 20t of the second webbing 20; and a locking member 40 that has a fixing part 42 made of a member having rigidity, to which the part 25 to be fixed of the second webbing 20 is fixed and a locking part 41 to which the part 15 to be locked of the first webbing 10 is hooked up and locked.SELECTED DRAWING: Figure 7

Description

Technical Field

[0002] , ,

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[0003]

[0001] The present invention relates to a fixing structure of a force cloth and a vehicle seat provided with the same.

Background Art

[0002] In a vehicle seat, when a vehicle collides or the like, a side airbag device is used that operates a gas generating means of an airbag module to inflate and deploy a side airbag between the upper body of an occupant and a side door (see, for example, Patent Document 1).

[0003] Such a side airbag device is disposed on the door side or the side portion on the vehicle center side inside the seat. When the airbag module operates, the airbag housed therein inflates and is configured to break through the seat pad and the trim cover (seat cover) and pop out to the outside of the seat. For the airbag module to function properly, it is necessary for the airbag to pop out from an airbag outlet provided at a predetermined portion of the seat. Therefore, in order to ensure that the airbag pops out from the airbag outlet 106', force cloths 10', 20' that connect the airbag module and the airbag outlet 106' and guide the inflating airbag to the airbag outlet 106' are provided inside the seat (see FIGS. 13 to 15). The force cloths 10', 20' are typically disposed between the airbag module 202' and the seat pad 104', and the ends of the force cloths 10', 20' are fixed to the seat frame 102' via fixing members 300'.

[0004] Typical structures for fixing the reinforcing fabrics 10' and 20' include 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 has fewer parts and lower costs, the process of installing the airbag module 202' between the reinforcing fabrics 10' and 20', which are formed into a bag, by spreading out the seat pad 104' is quite complicated and makes it less efficient. In this respect, the sheet metal structure involves fixing the airbag module 202' to the seat frame 102' first, then covering it with the reinforcing fabrics 10' and 20', and fixing the sheet metal 310' and 320' provided at the ends of the reinforcing fabrics 10' and 20' with rivets 303' or bolts. This is extremely efficient in terms of installing the airbag module 202'. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2008-037261 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, despite the advantages mentioned above, the sheet metal structure still has room for improvement in terms of the weight of the sheet metal structure itself and the ease of installation. Specifically, a structure in which sheet metal 310' and 320' are attached to the ends of two reinforcing cloths 10' and 20' tends to be heavy and costly. Furthermore, the actual installation work, such as holding the two sheet metal pieces 310' and 320' with one hand while driving in rivets 303', is by no means easy.

[0007] Therefore, the present invention aims to provide a fixing structure for a reinforcing fabric and a vehicle seat equipped therewith, which can improve workability when attaching the reinforcing fabric and also contribute to cost reduction. [Means for solving the problem]

[0008] One aspect of the present invention is a fixing structure for a reinforcing fabric in a vehicle seat equipped with an airbag device, An airbag module fixed to the seat frame of a vehicle seat, The first and second reinforcing fabrics 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, A fixing portion is provided at the second end of the second reinforcement fabric, on the side opposite to the airbag outlet, A locking member having a rigid member, a fixing portion to which the fixed portion of the second reinforcement fabric is fixed, and a locking portion to which the locked portion of the first reinforcement fabric is hooked and locked, This is a fixing structure for the reinforcing fabric, equipped with the following features.

[0009] With the fixing structure described above, the reinforcing fabrics can be engaged with each other by simply hooking the locked portion of the first end of the first reinforcing fabric onto the locked portion of the locking member to which the second end of the second reinforcing fabric is fixed. Furthermore, they can be fixed to the seat frame while maintaining this engaged state. Therefore, compared to conventional work such as holding two sheet metal pieces with one hand while driving rivets, the work of attaching the reinforcing fabrics is easier and work efficiency is greatly improved. Moreover, since a fixing structure with this configuration requires fewer parts than conventional structures in which sheet metal is used for the engaging and engaged parts, it is possible to reduce the amount of metal material used, thereby making it lighter and lowering the cost.

[0010] The locking portion of the locking member in the fabric fastening structure described above may be formed in the shape of a hook.

[0011] In the fixing structure for the reinforcing cloth as described above, the locking portion may be formed in the shape of a hook by a slit portion into which the locking portion of the first reinforcing cloth can be inserted.

[0012] In the fixing structure of the reinforcing cloth as described above, a retaining portion may be formed in the locking portion to prevent the locked portion inserted into the slit portion from coming out of the slit portion.

[0013] In the fixing structure of the reinforcing cloth as described above, a guide portion may be formed in the locking portion to guide the locked portion into the slit portion when it is inserted into the slit portion.

[0014] In the fixing structure of the reinforcing cloth as described above, the guide portion may be formed to protrude from the entrance of the slit portion in the direction in which the locking portion is located.

[0015] In the fixing structure for the reinforcing fabric as described above, the locking portion of the first reinforcing fabric may be formed by folding back the first end of the first reinforcing fabric and sewing it into a loop.

[0016] The fixing structure for the reinforcing cloth in the manner described above may further include a fixing member that fixes 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.

[0017] In the fixing structure of the reinforcing cloth as described above, the locking member may be provided with a fixed portion to which the fixing member locks.

[0018] The locking member in the reinforcement fabric fixing structure as described above may be made of L-shaped bent sheet metal.

[0019] Another aspect of the present invention is a fixing structure for a reinforcing fabric in a vehicle seat equipped with an airbag device, An airbag module fixed to the seat frame of a vehicle seat, A first force cloth and a second force cloth that surround an airbag module together with a seat frame and guide the inflated airbag to an airbag outlet on the seat surface, A rigid insertion member provided at a first end portion on the side opposite to the airbag outlet side of the first force cloth, A bag-shaped insertion portion provided at a second end portion on the side opposite to the airbag outlet side of the second force cloth, into which the insertion member can be inserted, It is a fixing structure of the force cloth including.

[0020] According to the fixing structure as described above, after inserting the rigid insertion member provided at the first end portion of the first force cloth into the insertion portion of the second end portion of the second force cloth and engaging the force cloths with each other, these can be fixed to the seat frame. Therefore, compared with the conventional work of hitting a rivet while holding two sheet metals with one hand, the work of attaching the force cloth is easier, and the workability is greatly improved. Moreover, with a fixing structure having such a configuration, the number of parts can be reduced compared to the conventional structure in which sheet metals are used for the engaging portion and the engaged portion, so it is possible to reduce the metal material and achieve weight reduction and cost reduction accordingly.

[0021] The fixing structure of the force cloth in the aspect as described above may further include a fixing member that fixes the first end portion of the first force cloth and the second end portion of the second force cloth to the seat frame in a state where the insertion member is inserted into the insertion portion.

[0022] The insertion portion in the fixing structure of the force cloth in the aspect as described above may be formed in a bag shape by folding back a part of the second end portion of the second force cloth and sewing both sides of the overlapping portion.

[0023] The insertion member in the fixing structure of the force cloth in the aspect as described above may include a rigid core material.

[0024] A fixing through hole through which the fixing member passes may be provided in the core material in the fixing structure of the force cloth in the aspect as described above.

[0025] In the fixing structure for the reinforcing cloth as described above, a fixing through-hole may be provided in the insertion portion at a position that overlaps with the fixing through-hole when a core material is inserted into the insertion portion.

[0026] The fixing structure for the reinforcing fabric in the manner described above may also be a structure in which an insertion member is inserted into the insertion part, and then the first end of the first reinforcing fabric and the second end of the second reinforcing fabric are rotated around the insertion part to wind them up and overlap, and then fixed to the sheet frame by the fixing member.

[0027] In the fixing structure of the reinforcing cloth as described above, openings may be provided at the first end of the first reinforcing cloth and the second end of the second reinforcing cloth to expose fixing through holes when rotated and overlapped.

[0028] In the fixing structure for the reinforcing fabric as described above, the opening may be composed of a slit provided along the longitudinal direction of the first end of the first reinforcing fabric and the second end of the second reinforcing fabric.

[0029] The fixing structure for the reinforcing cloth in the manner described above may further include a tightening member that tightens the insertion portion and the insertion member when the insertion member is inserted into the insertion portion.

[0030] One aspect of the present invention is a vehicle seat equipped with the above-described fixing structure for the reinforcing fabric. [Effects of the Invention]

[0031] According to the present invention, it is possible to improve the workability when attaching the reinforcing fabric and also contribute to cost reduction. [Brief explanation of the drawing]

[0032] [Figure 1] This is a perspective view showing an example of a vehicle seat equipped with a side airbag system. [Figure 2] This is a plan view showing an example of a fixing structure for a reinforcing cloth in the first embodiment of the present invention. [Figure 3]This figure shows a magnified view of the area circled with a dashed line in Figure 2. [Figure 4] This figure shows an example of a first reinforcing fabric, a second reinforcing fabric, and a locking member. [Figure 5] This diagram shows the process of inserting the part of the first reinforcement fabric to be locked into the slit of the locking member. [Figure 6] This diagram shows a locking member fixed to the seat frame with rivets. [Figure 7] This figure shows an example of a fixing structure for reinforcing fabric inside a vehicle seat. [Figure 8] This figure shows the first and second reinforcing fabrics in a second embodiment of the present invention. [Figure 9] This diagram shows how the insertion member of the first reinforcement fabric is inserted into the insertion part of the second reinforcement fabric. [Figure 10] 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. [Figure 11] 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. [Figure 12] This diagram shows the state in which the insertion member of the first reinforcing fabric is inserted into the insertion part of the second reinforcing fabric, and then the first end of the first reinforcing fabric and the second end of the second reinforcing fabric are rotated around the insertion part to wind and overlap. [Figure 13] This is a plan view showing an example of a conventional fixing structure for a reinforced fabric, for reference. [Figure 14] This diagram shows an example of a conventional reinforcing cloth for reference. [Figure 15] This diagram shows, for reference, an example of a conventional fixing structure for reinforcing fabric inside a vehicle seat. [Modes for carrying out the invention]

[0033] Preferred embodiments of the present invention will be described in detail with reference to the drawings (see Figures 1 to 12).

[0034] 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.

[0035] <Vehicle seats equipped with airbag systems> The vehicle seat 100 is a seat installed in a vehicle such as an automobile, and comprises a seat cushion 120 that supports the buttocks and thighs of the seated occupant, a seat back 130 that supports the occupant's waist and back, a headrest 140 that supports the occupant's head, and an airbag module 202 (see Figure 1).

[0036] The seat back 130 incorporates a seat frame 102 that forms the skeleton of the seat back 130 (see Figure 7, etc.). Although not shown in particular detail, the seat frame 102 may include a pair of backside frames that are spaced apart in the seat width direction and extend in the seat vertical direction, and an upper frame (not shown) that connects the upper ends of the backside frames. In this embodiment, the seat frame is shown with the backside frame portion denoted by reference numeral 102 (see Figure 7). The seat frame 102 is covered by a seat pad 104 made of a relatively soft resin foam material such as urethane foam, and further covered by a trim cover 108 made of a surface material such as leather, woven fabric, or nonwoven fabric.

[0037] The airbag module 202 is fixed to the backside frame of the seat frame 102, covered by the seat pad 104 and trim cover 108, and built into the seat back 130 (see Figure 7). The airbag module 202 of this embodiment has an airbag 204 (see Figure 1) and an inflator 206 for inflating the airbag 204. When the airbag module 202 is activated, the airbag 204 deploys to the side of the seat back 130 and headrest 140 to prevent collisions with the occupant seated in the vehicle seat 100 (for example, collisions with passengers seated in other seats adjacent to the vehicle seat 100, or collisions with the vehicle's doors, etc.).

[0038] The portion of the trim cover 108 that will become the airbag outlet 106 is provided with a breakable section 109 that can be easily ruptured (see Figures 2 and 3, etc.). The breakable section 109 is composed of multiple surface materials that are sewn together in a manner that allows them to easily rupture when the airbag module 202 is activated. The seat pad 104 is provided with a slit 105 that leads from the airbag module 202 to the breakable section 109 (see Figure 7).

[0039] Although not specifically shown in the diagram, the vehicle is equipped with an acceleration sensor that detects collisions and an ECU (Electronic Control Unit) that determines whether or not to activate the inflator 206 based on the signal output from the acceleration sensor. When a predetermined signal is transmitted from the ECU, the inflator 206 activates and generates gas, inflating the airbag 204. The inflated airbag 204 reaches the rupture section 109 through the slit 105, and the expansion pressure causes the rupture section 109 to burst, ejecting the airbag 204 to the outside of the seat back 130.

[0040] The vehicle seat 100 is equipped with a reinforcing fabric that guides the inflating airbag 204 to the rupture 109. The vehicle seat 100 of this embodiment is equipped with a first reinforcing fabric 10 and a second reinforcing fabric 20 as reinforcing fabrics (see Figures 2, 3, etc.). These first reinforcing fabrics 10 and 20 are made of materials with poor elasticity, such as woven or nonwoven fabrics using polyester fibers or polyamide fibers. The ends 10a and 20a of the first reinforcing fabric 10 and the second reinforcing fabric 20 on the airbag outlet 106 side are sewn together with the surface material forming the trim cover 108 at the rupture 109 and are pulled through the slit 105 to the airbag module 202 (see Figures 2, 3, and 7). The first reinforcing fabric 10 and the second reinforcing fabric 20, which are drawn up to the airbag module 202, branch out on both sides of the airbag module 202 so as to surround the airbag module 202 together with the seat frame 102 (see Figure 7). The ends of the first reinforcing fabric 10 and the second reinforcing fabric 20 opposite to the airbag outlet 106 (referred to as the first end and the second end, respectively, and indicated by reference numerals 10t and 20t in this specification) are fixed to the seat frame 102 by the reinforcing fabric fixing structure 1.

[0041] <Reinforcement fabric fixing structure (first embodiment)> The fixing structure 1 for the reinforcing fabric in this embodiment consists of an airbag module 202, a first reinforcing fabric 10 and a second reinforcing fabric 20, a locking portion 15 provided on the first end 10t of the first reinforcing fabric 10, a fixing portion 25 provided on the second end 20t of the second reinforcing fabric 20, a hook member (locking member) 40, etc. (see Figures 4 to 7, etc.).

[0042] The hook member 40 is a rigid member configured to easily lock the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 and to maintain the locked state. As an example, in this embodiment, a hook member 40 made of sheet metal and bent in an L-shape along the sheet frame 102 is used (see Figure 2). This hook member 40 is provided with a locking portion 41, a fixing portion 42, and a fixed portion 45 (see Figures 4 to 6).

[0043] The locking portion 41 is provided to lock onto the locking portion 15 provided on the first end 10t of the first reinforcement cloth 10. In this embodiment, the hook member 40 is provided with a slit portion 41s shaped to allow the locking portion 15 of the first reinforcement cloth 10 to be inserted, and this slit portion 41s allows a part of the hook member 40 to function as a hook-shaped locking portion 41 (see Figures 5 and 6). The locking portion 15 of the first reinforcement cloth 10 can be hooked onto the hook-shaped locking portion 41 and locked in place by sliding the slit portion toward the 41s. The locking portion 41 is further provided with a retaining portion 41n and a guiding portion 41g. The retaining portion 41n prevents the locked portion 15 inserted into the slit portion 41s from coming out of the slit portion 41s, and is composed of a rounded portion that protrudes from the locking portion 41 toward the slit portion 41s, for example, so as to narrow a part of the slit portion 41s (see Figures 5 and 6). The guiding portion 41g is provided to make it easier to insert the locked portion 15w into the slit portion 41s by guiding the locked portion 15w of the first reinforcement fabric 10 toward the slit portion 41s. For example, in this embodiment, the protruding portion formed on the locking portion 41 so as to protrude outward from the entrance of the slit portion 41s (in the direction in which the locked portion 15 is located) and form a step is used as the guiding portion 41g (see Figure 5).

[0044] The fixing portion 42 is the part to which the fixed portion 25 of the second reinforcing fabric 20 is fixed. In this embodiment, although not shown in detail, for example, a slit-shaped vertical hole through which the second end portion 20t of the second reinforcing fabric 20 passes is used as the fixing portion 42 (see Figure 2). The second reinforcing fabric 20 that has passed through the slit-shaped vertical hole is folded back and sewn with fixing thread 24 to form a loop-shaped fixed portion 25.

[0045] The fixed portion 45 is a part provided for engaging a fixing member such as a rivet 30 when fixing the hook member 40 to the sheet frame 102. In this embodiment, a round through-hole for passing the rivet 30 is provided as the fixed portion 45, but the shape is not particularly limited, and it may be a form other than a through-hole (for example, a notch, etc.). In this embodiment, the hook member 40 is provided with two through-holes as the fixed portion 45 (see Figure 5), and the hook member 40 attached to the sheet frame 102 is more firmly fixed by the rivet 30 passed through each through-hole, making it difficult to rotate (see Figure 6). In addition, by fixing the hook member 40 to the sheet frame 102 in a predetermined position using the rivet 30, it is possible to make it difficult for the locked portion 15 of the first reinforcement fabric 10 to come off the locked portion 41 (see Figure 6).

[0046] The locking portion 15 of the first end 10t of the first reinforcing fabric 10 is formed to be hooked onto the locking portion 41 of the hook member 40 and locked in place. In this embodiment, the first end 10t of the first reinforcing fabric 10 is folded back and sewn with fixing thread 14 to form a loop-shaped sewn portion which functions as the locking portion 15 (see Figures 2, 4, 5, etc.).

[0047] The fixed portion 25 of the second end 20t of the second reinforcing fabric 20 is fixed to the fixing portion 42 of the hook member 40. As described above, in this embodiment, the second reinforcing fabric 20 is passed through the slit-shaped vertical hole (not shown) of the hook member 40, folded back, and sewn with fixing thread 24 to form a loop-shaped fixed portion 25 (see Figure 2).

[0048] With the reinforcing fabric fixing structure 1 configured as described above, the reinforcing fabrics can be engaged with each other by simply hooking a part of the locked portion 15 of the first end 10t of the first reinforcing fabric 10 onto the locking portion 41 of the hook member 40, to which the second end 20t of the second reinforcing fabric 20 is already fixed (see Figure 5), and then sliding it into the slit portion 41s to lock it in place (see Figure 6, etc.). Furthermore, since the hook member 40 can be fixed to the seat frame 102 using fixing members such as rivets 30 while maintaining this engaged state between the reinforcing fabrics, the work of attaching the reinforcing fabrics is easier and more efficient compared to conventional work such as holding two sheet metal pieces with one hand while driving in rivets. Moreover, since the fixing structure 1 with this configuration requires fewer parts than conventional structures in which sheet metal was used for the engaging and engaged portions, it is possible to reduce the amount of metal material used, thereby making it lighter and lowering the cost.

[0049] <Reinforcement fabric fixing structure (second embodiment)> The reinforcing fabric fixing structure 1 in this embodiment consists of an airbag module 202, a first reinforcing fabric 10 and a second reinforcing fabric 20, an insertion member 17 provided on the first end 10t of the first reinforcing fabric 10, an insertion portion 27 provided on the second end 20t of the second reinforcing fabric 20, etc. (see Figures 4 to 7, etc.).

[0050] The insert member 17 is a rigid member provided at the first end 10t of the first reinforcing fabric 10, on the side opposite to the airbag outlet. In this embodiment, a core material made of sheet metal is attached to the first end 10t of the first reinforcing fabric 10, and this core material is used as the insert member 17 (see Figure 8). The method of attaching the core material is not particularly limited. In this embodiment, the first end 10t of the first reinforcing fabric 10 is folded back, and the sheet metal is attached by sewing the perimeter with fixing thread 19 while the sheet metal is sandwiched in between (see Figure 9, etc.). The insert member (core material in this embodiment) 17 is also provided with fixing holes 17h for passing fixing members such as rivets 30 through (see Figures 8 and 9).

[0051] The insertion portion 27 is formed in a pocket shape so that the insertion member 17 can be inserted into the second end portion 20t of the second reinforcing fabric 20 on the side opposite to the airbag outlet (see Figure 8, etc.). In the fixing structure 1 of this embodiment, a pocket-shaped insertion portion 27 is formed by folding back a part of the second end portion 20t of the second reinforcing fabric 20 and sewing both sides (both edges) of the overlapping portion with suture thread 29 (see Figure 9, etc.). Furthermore, of the insertion portion 27, a fixing through hole 27h is provided at a position that overlaps with the fixing through hole 17h when the insertion member (core material in this embodiment) 17 is inserted into the insertion portion 27 (see Figures 9 and 10).

[0052] With the fixing structure 1 described above, the insertion member 17 of the first reinforcing fabric 10 can be folded back and inserted into the insertion portion 27 of the second reinforcing fabric 20, thereby engaging the first reinforcing fabric 10 and the second reinforcing fabric 20 (see Figure 9, etc.). Furthermore, by passing rivets 30 through the overlapping fixing holes 17h and 27h and driving the rivets 30 into the sheet frame 102, the first reinforcing fabric 10 and the second reinforcing fabric 20 can be fixed to the sheet frame 102 while remaining engaged (see Figure 10).

[0053] Furthermore, in the fixing structure 1 described above, the insertion member 17 may be inserted into the insertion portion 27 and the insertion member 17 may be tightened with the tightening member 50 (see Figure 11). By tightening them with the tightening member 50, the first reinforcing fabric 10 and the second reinforcing fabric 20 are more firmly engaged, and it becomes possible to prevent the insertion member 17 from falling out of the insertion portion 27. This can be said to be a more preferable configuration from the viewpoint of counteracting the tension acting on the engagement portion between the first reinforcing fabric 10 and the second reinforcing fabric 20 when the airbag device 200 is activated. As the tightening material 50, for example, a loop-shaped string may be added to the second reinforcing fabric 20, and the string may be passed through the insertion member (core material in this embodiment) 17 while the first reinforcing fabric 10 and the second reinforcing fabric 20 are engaged (see Figure 11).

[0054] Furthermore, in the fixing structure 1 described above, the insertion member 17 may be inserted into the insertion portion 27, and then the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 may be rotated around the insertion portion 27 to wind them up and overlap (wind up) before being fixed to the sheet frame 102 with rivets 30 (see Figures 10 and 12). When the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 are rotated and wound up in this way, the engagement force between them can be increased, and a greater tension can be applied to the first reinforcing fabric 10 and the second reinforcing fabric 20. In the case of fixing structure 1 in which the two are rotated and wound up before being fixed with rivets 30, openings may be provided in the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 to expose the fixing through holes 17h and 27h when they are rotated and overlapped. In this embodiment, the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 are each provided with slits 18 and 28 extending along the longitudinal direction (see Figures 8 to 10). When the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 are rotated and overlapped, the presence of these slits 18 and 28 allows the first reinforcing fabric 10 and the second reinforcing fabric 20 to be exposed without interfering with the fixing through holes 17h and 27h (see Figure 10, etc.).

[0055] In this embodiment, a configuration in which the first end 10t of the first reinforcing fabric 10 and the second end 20t of the second reinforcing fabric 20 are fixed to the sheet frame 102 using rivets (fixing members) 30 has been described, but this is merely one preferred example. Although not specifically shown in the figures, for example, the first reinforcing fabric 10 (first end 10t) and the second reinforcing fabric 20 (second end 20t) may be attached to different parts of the sheet frame 102, or a part of the sheet frame 102 may be cut out in a hook shape, and bag-like insertion parts provided on the first reinforcing fabric 10 and the second reinforcing fabric 20 may be hooked into this cutout, thereby fixing the first reinforcing fabric 10 and the second reinforcing fabric 20 to the sheet frame 102 without using rivets or the like.

[0056] According to the fixing structure 1 of this embodiment, a rigid insert member 17 provided on the first end 10t of the first reinforcing cloth 10 can be inserted into the insertion portion 27 of the second end 20t of the second reinforcing cloth 20, engaging the reinforcing cloths together, and then fixing them to the sheet frame 102 (see Figure 10, etc.). Therefore, compared to conventional work such as holding two sheet metals with one hand while driving rivets, the work of attaching the reinforcing cloths is easier and work efficiency is greatly improved. Moreover, with a fixing structure 1 of this configuration, the number of parts is reduced compared to conventional structures in which sheet metal is used for the engaging and engaged parts, and the size of the metal material used for the core material can also be reduced, making it possible to reduce the amount of metal material and thereby reduce weight and cost.

[0057] While the embodiments described above are examples of preferred implementations of the present invention, they are not limited thereto, and various modifications are possible without departing from the spirit of the invention. [Industrial applicability]

[0058] The present invention is particularly suitable for application to a fixing structure for reinforcing fabric in a vehicle seat equipped with an airbag system. [Explanation of Symbols]

[0059] 1…Fixing structure of the reinforcement fabric 10…1st force cloth (force cloth) 10a...End of the first reinforcement fabric on the airbag outlet side 10t...First end (the end of the first reinforcement fabric opposite the airbag outlet side) 14… Fixing thread 15…Locked part 17…Core material (insertion component) 17h…fixing hole 18... Slit (opening) 19… Fixing thread 20…Second force cloth (force cloth) 20a... The end of the second reinforcement fabric on the airbag outlet side. 20t...Second end (the end of the second reinforcement fabric opposite the airbag outlet side) 24… Fixing thread 25…Fixed part 27...Pocket (insertion part) 27h…fixing hole 28... Slit (opening) 29…Sutures 30… Rivet (fastening component) 40... Hook member (locking member) 41... Locking part 41g…Induction part 41n... Retaining part 41s... Slit section 42…Fixed part 45…Fixed part 50... Fastening component 100... Vehicle seats 102,102'...Seat frame 104...Seat pad 105... Slit 106,106'...Airbag exit 108…Trim cover 109...Fracture 120... Seat cushion 130... Seat back 140... Headrest 200...Airbag system 202,202'...Airbag module 204...Airbag 206... Inflator 300'... Fixing member 303'... Rivet 310'... Sheet metal 320'... Sheet metal

Claims

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 the shape of a hook.

3. The fixing structure for a reinforcing cloth according to claim 2, wherein the locking portion is formed in the shape of a hook by a slit portion into which the locking portion of the first reinforcing cloth can be inserted.

4. The fixing structure for a reinforcing cloth according to claim 3, wherein the locking portion has a retaining portion formed thereon 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 guide portion that guides the locked portion into the slit portion when it is inserted into the slit portion.

6. The fixing structure for a reinforcing 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 locked portion is located.

7. The fixing structure for a reinforcing cloth according to claim 3, wherein the locking portion of the first reinforcing cloth is formed by folding back the first end of the first reinforcing cloth and sewing it into a loop.

8. The fixing structure for a reinforcing cloth according to claim 1, further comprising a fixing member for fixing the locking member to the seat 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 portion to be fixed, into which the fixing member is locked.

10. The fixing structure for the reinforcing cloth according to claim 1, wherein the locking member is made of a 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 fastening structure for the reinforcing cloth according to claim 11, wherein the insertion portion is formed into a bag shape by folding back a part of the second end of the second reinforcing cloth and sewing together both sides of the overlapping portion.

14. The fixing structure for the reinforcing cloth according to claim 12, wherein the insert member includes a rigid core material.

15. The fixing structure for a 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 a reinforcing cloth according to claim 16, wherein the insertion member is inserted into the insertion portion, 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 them up and overlap, and then fixed to the sheet frame by the fixing member.

18. The fixing structure for a reinforcing cloth according to claim 17, wherein openings are provided at the first end of the first reinforcing cloth and the second end of the second reinforcing cloth to expose the fixing through-hole when the cloth 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.

21. A vehicle seat comprising a reinforcing fabric fixing structure according to any one of claims 1 to 20.

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