JP6724604B2 - Vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat having a fixing structure that fixes a seat cover in a state in which the seat cover is pulled into a fixing target.

BACKGROUND ART Conventionally, in a vehicle seat, a configuration in which a seat cover is fixed to an insert wire in a seat pad by a hog ring is known (Patent Document 1). Specifically, the suspension wire attached to the seat cover is drawn into the insert wire, and is fastened and fixed to the insert wire by a hog ring.

JP, 2004-41252, A

In the above-mentioned conventional technique, a hanging wire is provided at each position where it is necessary to hang the seat cover, and each hanging wire is individually drawn into and fixed to the insert wire, resulting in poor workability. The present invention was devised as a solution to the above problems, and an object of the present invention is to enable two retractable objects including a seat cover to be easily fixed to a fixed object. Especially.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.

A first aspect of the present invention is a vehicle seat that includes a fixing structure that fixes a seat cover in a state in which the seat cover is pulled into a fixing target. The fixing structure has a flexible planar cross-linking material that is cross-linked between two different pull-in objects including a seat cover between the pull-in objects, and the cross-linked intermediate portion of the cross-linking material is fixed to the fix target. It is retracted and fixed.

According to the first aspect of the invention, the two retractable objects can be collectively and simply retracted and fixed to one common fixed object via the cross-linking material that is crosslinked between the two retractable objects.

The second invention has the following configuration in the above-described first invention. The fixing structure is such that a tubular stitching portion that extends linearly in the in-plane direction along the middle portion of the cross-linking material is formed, and a linear core material is inserted into the stitching portion of the cylinder, Is connected to a fixed object.

According to the second aspect of the present invention, it is possible to simply embody the structure that enables the cross-linking material to be fixed to the fixed object in the elongated shape in the direction along the extending direction of each drawing object.

The third invention has the following configuration in the above-described second invention. The cross-linking material is composed of two sheets of sheet material, and a tubular stitching portion into which the above-mentioned core material is inserted is formed between the two sheets of sheet material.

According to the third aspect of the invention, the tubular sewn portion for passing the core material through the crosslinked material can be formed in a simple and high tensile strength shape.

A fourth invention has the following configuration in any of the above-described first to third inventions. The joining lines joined to the edges of the two cross-linkers to be pulled in on the respective sides are not parallel to each other.

According to the fourth aspect of the present invention, even if the joining lines of the two cross-linking materials to be pulled in are not parallel to each other, the shape between these and the intermediate portion of the cross-linking material absorbs the difference in these shapes. Then, these can be appropriately drawn and fixed to the fixing target by the intermediate portion having the common shape.

A fifth invention has the following configuration in any of the above-described first to fourth inventions. The other of the two retractable objects is the seat frame. The intermediate portion of the cross-linking material is suspended and fixed in the seat pad, and the seat cover is suspended in the seat pad via the cross-linking material and the seat pad is pulled in and fixed to the seat frame. ..

According to the fifth aspect of the invention, it is possible to appropriately perform the two pull-in operations by collectively suspending the seat cover on the seat pad and retracting and fixing the seat pad in the seat frame by using the cross-linking material. You can

A sixth invention has the following configuration in the above-mentioned fifth invention. An edge on the side of the cross-linking material that is fixed to the seat frame, a straight hook that is hooked and fixed to the straight portion of the seat frame is straightly connected, and that is connected to the cross-linking sheet cover. The parts are joined in a round shape along the rounded pull-in line of the seat cover.

According to the sixth aspect of the present invention, even if the connecting line for the hook for hooking the cross-linking material to the seat frame and the connecting line for the seat cover are of different types, the intermediate line between these and the cross-linking material is different. Depending on the shape between the parts, these differences in shape can be absorbed. Therefore, by the cross-linking material, it is possible to appropriately perform the two pull-in operations, that is, the seat cover is hung on the seat pad and the seat pad is pulled into the seat frame to be fixed.

1 is a perspective view showing a schematic configuration of a vehicle seat of Example 1. FIG. It is an exploded perspective view of a seat back. It is a front view of a seat back. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is a V section enlarged view of FIG. It is an enlarged view showing the state before a bridge construction material is drawn in by a seat pad and a seat frame. It is an enlarged view showing the state where the cross-linking material was pulled into the seat pad. It is an enlarged view showing the state where the cross-linking material was pulled into the seat frame. It is a schematic diagram showing the shape of a pull-in cotton cloth simple substance.

Modes for carrying out the present invention will be described below with reference to the drawings.

First, the configuration of the seat 1 (vehicle seat) of the first embodiment will be described with reference to FIGS. 1 to 9. As shown in FIG. 1, the seat 1 of this embodiment is configured as a left seat of an automobile. The seat 1 is configured to include a seat back 2 serving as a backrest portion of a seated occupant, a seat cushion 3 serving as a seating portion, and a headrest 4 serving as a headrest portion. The above-described seat back 2 is connected to the rear end portion of the seat cushion 3 via a pair of left and right recliners (not shown) so that the backrest angle can be adjusted. The headrest 4 is provided in a state of being inserted into and attached to the upper surface portion of the seatback 2 from above.

Specifically, the seat back 2 described above is configured to have a top main part 10 that forms a central portion of the front surface thereof, and a top side part 20 that forms both left and right side portions of the front surface of the seat back 2. ing. The top main part 10 described above is configured to support the back of the seated occupant from the rear side. Further, the top plate side portion 20 has side supports 20A that bulge in a mountain shape on both left and right side portions of the top plate main portion 10, and is configured to support the back of a seated occupant diagonally from both left and right sides. .. As shown in FIG. 2, the top main part 10 and the top side part 20 described above are individually sub-assembled, and are integrally assembled with each other.

Specifically, the top plate main portion 10 described above is attached to the top plate side portion 20 described above in a state of being covered like a jacket from above. By the above-mentioned assembly, the top main part 10 has shoulder shoulders 10A extending in a hook-like bent shape from the upper edge of the top side of the top side 20 described above toward the rear lower side. As a state of being hooked over the back and back portion, it is set to be hung on the central portion of the front surface of the top plate side portion 20. After the assembling, the top plate main portion 10 is integrally assembled with the top plate side portion 20 by fastening bolts at various portions together with the top plate side portion 20. There is. By the above-mentioned assembly, the top plate main portion 10 is configured to expose the top surface portion of the top plate side portion 20 to the upper side from the opening portion 10B formed in the center portion of the top surface of the shoulder hanging portion 10A. .. Then, the above-described headrest 4 is inserted from above and attached to the upper surface portion of the top plate side portion 20 exposed from the opening 10B.

As shown in FIGS. 1 to 4, the top plate side portion 20 has mountain-shaped side supports 20</b>A that swell obliquely toward the front outside at the left and right sides of the assembled top plate main portion 10. It is formed into a shape. Each of these side supports 20A is internally provided with a cushion structure (each side pad portion 21A of a top plate side pad 21 described later) capable of elastically receiving the back of a seated occupant. Further, the above-mentioned top main part 10 also has a cushion structure (top main pad 11 described later) capable of elastically receiving the back of the seated occupant. With the above configuration, the top main part 10 and the side supports 20A of the top side part 20 can elastically receive the back of the seated occupant from the rear side and the left and right sides in a mutually united manner. It is like this.

Hereinafter, a specific configuration of each part of the seat back 2 described above will be described in detail. First, the configuration of the top plate main unit 10 will be described. As shown in FIGS. 2 and 4, the top plate main portion 10 has a cushion urethane foam top plate main pad 11 capable of elastically receiving the load of a seated occupant, and the top plate main pad 11. And a top main cover 12 made of a synthetic synthetic leather material having a flexible surface covering the entire outer peripheral surface of the.

Next, the configuration of the top plate side portion 20 will be described. The top plate side portion 20 is configured by being assembled to a back frame 2F that is assembled into a substantially inverted U-shape that constitutes the internal skeleton of the seat back 2. The above-described back frame 2F is configured as a main frame that forms a main skeleton along the outer peripheral portion of the seat back 2, and is integrally formed between a pair of left and right vertically extending side frames 2Fa and upper end portions of the side frames 2Fa. And an upper frame 2Fb that is cross-linked.

The top plate side portion 20 described above covers the top plate side pad 21 made of foamed urethane and having the cushioning property capable of elastically receiving the load of the seated occupant, and the entire outer peripheral surface of the top plate side pad 21. A top plate side cover 22 made of a flexible surface-like synthetic leather material, and an inside view prevention cover 23 made of a flexible surface-like fabric material cross-linked between the side supports 20A of the top plate side portion 20, It is composed by. The top plate side pad 21 described above is formed in a substantially inverted U-shape that conforms to the shape of the back frame 2F described above.

Specifically, the top plate side pad 21 described above connects between a pair of left and right side pad portions 21A, which are put on the respective side frames 2Fa of the back frame 2F from the front side, and the upper end portions of the respective side pad portions 21A. The upper frame 2Fb is covered with the upper pad portion 21B from the front side, and is formed in a substantially inverted U shape. The top plate side pad 21 described above includes the pair of left and right side pad portions 21A and the upper pad portion 21B described above from the front side and the inner and outer peripheral sides of the side frames 2Fa and the upper frame 2Fb of the back frame 2F, respectively. It is configured so that it is rolled in and covered so that it is covered from the rear side while covering it. The top plate side portion 20 described above has a configuration in which the mountain shape of each side support 20A described above is formed by the shape of each side pad portion 21A described above.

The top plate side cover 22 has a shape in which each side pad portion 21A and an upper pad portion 21B are wrapped from the inner peripheral side and the outer peripheral side with respect to the above-described top plate side pad 21 formed in a substantially inverted U shape. It is covered so that Specifically, as shown in FIG. 4, the top plate side cover 22 described above is put on each side pad portion 21A of the top plate side pad 21 described above as follows. That is, the above-mentioned top plate side cover 22 includes an inside cover piece 22A that covers the inside inclined surface that is applied from both sides to the back of the seated occupant in each side pad portion 21A of the above-mentioned top plate side pad 21, and each side. It is configured to have an outside cover piece 22B that covers the outer side surface of the pad portion 21A, and a back-side cover piece 22C that connects the leading edge portions that have been drawn to the rear side of each outside cover piece 22B. There is.

In each of the above-mentioned inside cover pieces 22A, the inside-view preventing cover 23 is sewn and bridged between the respective edge portions that are drawn rearward along the inner inclined surfaces of the respective side pad portions 21A. ing. In addition, a pull-in cotton cloth 24A constituting a fixing structure 24 for fixing these inside cover pieces 22A to the rear side is also sewn to the respective edge portions that are pulled in to the rear side. There is. These retractable cotton cloths 24A are respectively sewn from the respective edge portions that have been retracted to the rear side of the above-mentioned inside cover pieces 22A, and the respective sewn portions (sewn lines 24A1) to the respective side frames 2Fa of the respective side pad portions 21A. Of the insert wire 21A1 embedded in the rear surface portion of the insert wire 21A1 embedded in the rear surface portion. ing. Each of the insert wires 21A1 described above is embedded in a shape that extends straight in the seat height direction along the rear surface portion of each of the side pad portions 21A described above, and the locations thereof are rear surface portions of each side pad portion 21A. It is in a state of being exposed to the outside from the lightening portions formed in various places.

Furthermore, each of the above-described retractable cotton cloths 24A is retracted toward the rear inner side from each position fixed by the insert wire 21A1 and the hog ring 24H embedded in the rear surface portion of each side pad portion 21A described above, and retracted together. The wire frame 2Fc integrally formed with the side frames 2Fa provided at different positions is hooked and fixed to the straight portion 2Fc1 of each wire frame 2Fc. By the above fixing, each inside cover piece 22A is in a state of being stretched in a state in which the inside cover piece 22A is in close contact with the inclined surface inside each of the covered side pad portions 21A in a form that does not cause a floating or wrinkling. There is. In addition, the inside cover pieces 22A are also integrally fixed to the side frames 2Fa via the wire frames 2Fc described above, and the side pad portions 21A on the respective sides are attached to the corresponding side frames 2Fa. It is designed to be pressed and held integrally.

Here, each wire frame 2Fc corresponds to the “seat frame” and the “pull-in target” of the present invention, each side pad portion 21A corresponds to the “seat pad” and the “fixed target” of the present invention, and each inside cover piece. 22A is equivalent to the "seat cover" and the "drawing object" of this invention.

The inside-view preventing cover 23 is fixed between the respective edge portions that are pulled in to the rear side of the inside cover pieces 22A described above, and more specifically, in a state of being fixed in the position pulled in the rear side by the fixing structure 24 described above. It is provided so as to span between the respective edge portions. The above-described inside-view prevention cover 23 is located at a position on the front side with respect to a rear side edge portion of a portion that passes through the inside of each side frame 2Fa of each side pad portion 21A described above and projects to the rear side. The edges of the piece 22</b>A that have been drawn to the rear side are sewn to the edges, and are provided in a loose state between them.

With the above configuration, the inside-view prevention cover 23 is provided in a state in which the tension that applies a pressing force from the rear side is not applied to the top plate main portion 10 installed in the front region thereof. There is. Further, the inside-view prevention cover 23 is also in a state in which the unillustrated lumbar support mechanism installed in the rear region does not hinder the operation of applying a pressing force from the rear side to the top plate main portion 10.

Next, the above-mentioned respective edge portions pulled in to the rear side of the inside cover pieces 22A described above are provided integrally with the insert wires 21A1 embedded in the rear surface portion of the side pad portions 21A and the side frames 2Fa. A description will be given of the configuration of each wire frame 2Fc thus obtained and the fixing structure 24 that is pulled into and fixed to each wire frame 2Fc. That is, as shown in FIG. 5 and FIG. 9, each fixing structure 24 is the same as the pull-in cotton cloth 24A made of ester canvas, and the stitching portion 24B sewn in a tubular shape along the intermediate portion of the pull-in of the pull-in cotton cloth 24A. A core member 24C made of a metal wire inserted in the stitched portion 24B, and a resin hook 24D sewn to the leading end side portion of the pull-in cotton cloth 24A are roughly configured.

The above-described pull-in cotton cloth 24A is formed in a shape in which two sheet materials are stacked. The retractable cotton cloth 24A is in a state in which the edge portion on the root side of the hook 24D described above is integrally sewn to the edge portion on the one side where the pull-in cotton cloth 24A is overlapped (sewn line 24A2. ). The edge of the pull-in cotton cloth 24A, which is sewn to the hook 24D, is formed to extend straight in the seat height direction. Further, the hook 24D sewn to the edge portion of the retractable cotton cloth 24A is also formed such that the cross section thereof extends straight along the edge portion in a substantially uniform shape in the seat height direction. There is. The intermediate portion of the wire frame 2Fc, on which the hooked portion on the tip side of the cross section of the hook 24D is hooked, is also formed as a straight portion 2Fc1 that also extends straight in the seat height direction. There is. The ends of each side of the wire frame 2Fc extending in the seat height direction are bent so as to be applied along the side surface of the corresponding side frame 2Fa, and welded to the same side surface to be integrally connected. It is said that.

Further, the tubular stitching portion 24B formed along the middle portion of the pull-in of the pull-in cotton cloth 24A is straight in the seat height direction at two points where the respective surface members of the pull-in cotton cloth 24A are different from each other as described above. By being sewn in the shape of (sewn line 24B1), it is in a state of being sewn in a tubular shape between these sewn portions (sewn line 24B1). The tubular sewn portion 24B described above is formed so as to extend substantially parallel to the sewing line 24A2 with the hook 24D of the pull-in cotton cloth 24A described above. With the above configuration, the core material 24C inserted into the tubular stitching portion 24B described above is also in a state of being provided in a shape that extends straight in the seat height direction along the shape of the tubular stitching portion 24B. ing.

Further, the edge portion on the other side of the pull-in cotton cloth 24A has a shape having a pull-in line 22A1 in which the front edge portion pulled in the rear side of the corresponding inside cover piece 22A to be sewn with these is rounded (FIGS. 2 to 2). (See FIG. 3), the shape is cut into a round shape. Then, as shown in FIGS. 5 and 9, the rounded edge portion of the retractable cotton cloth 24A is integrally sewn along the corresponding edge portion retracted to the rear side of the corresponding inside cover piece 22A. It is in a state (suture line 24A1). As shown in FIG. 2 to FIG. 3, the side pad portion 21A described above has a shape in which the front edge portion drawn to the rear side of the inside cover piece 22A described above has a rounded-in drawing line 22A1. This is because the side support 20A to be formed has a rounded shape that is tapered outward toward the upper side in the seat width direction.

As described above with reference to FIGS. 5 and 9, the fixing structure 24 configured as described above has a shape in which the stitching line 24A1 with the inside cover piece 22A of the pull-in cotton cloth 24A is rounded, while the pull-in cotton cloth 24A described above is formed. The stitching line 24A2 with the hook 24D hooked on the wire frame 2Fc is configured to extend straight. However, even if the fixing structure 24 has a shape in which the stitching line 24A1 with the inside cover piece 22A and the stitching line 24A2 with the hook 24D are not parallel to each other as described above, an intermediate portion between them (sewn together) Using the common core member 24C attached to the portion 24B), these are collectively pulled into the insert wire 21A1 provided in the side pad portion 21A so as to be properly fastened in a form that absorbs the difference between these shapes. You can do it.

The reason for this is that the two pull-in targets have different shapes such that the one side edge of the pull-in cotton cloth 24A extends straight and the other side edge is rounded. Even if there is, the intermediate portion of the retractable cotton cloth 24A (the sewn portion 24B in which the core material 24C is inserted) is retracted and fixed to the insert wire 21A1 of the side pad portion 21A, which is the fixing target. This is because, regardless of the shape relationship between the suturing lines 24A2 and 24A1, they can be collectively pulled and fixed to the fixing target by the common pulling structure. With the above configuration, the retractable cotton cloth 24A can be fixed in an appropriately retracted state with respect to the insert wire 21A1 of the side pad portion 21A without causing significant wrinkling or twisting.

The core material 24C inserted into the tubular stitching portion 24B of the pull-in cotton cloth 24A described above is provided in a state of being exposed to the outside through openings formed at various places of the stitching portion 24B. Then, the core material 24C is pulled into the corresponding exposed portions of the insert wire 21A1 embedded in the rear surface portion of the side pad portion 21A described above so that the portions exposed from the respective openings of the stitching portion 24B are respectively drawn. By being fixed to the insert wire 21A1, the insert wire 21A1 is fixed and fixed.

In summary, the seat 1 of this embodiment has the following structure. That is, the vehicle seat (seat 1) is provided with a fixing structure (fixing structure 24) for fixing the seat cover (inside cover piece 22A) to the fixing target (side pad portion 21A). The fixing structure (fixing structure 24) includes two different drawing targets (the inside cover piece 22A and the wire frame 2Fc) including the seat cover (the inside cover piece 22A) and the drawing targets (the inside cover piece 22A and the wire frame 2Fc). ) Has a cross-linked flexible surface cross-linking material (pull-in cotton cloth 24A), and the cross-linking material (pull-in cotton cloth 24A) has a cross-linked intermediate portion (the stitched portion 24B in which the core material 24C is inserted). It is pulled in and fixed to the fixing target (side pad portion 21A).

With such a configuration, the two pull-in targets (the inside cover piece 22A and the inside cover piece 22A and the wire frame 2Fc) are cross-linked between the two pull-in targets (the inside cover piece 22A and the inside cover piece 22A). The wire frame 2Fc) can be simply pulled together and fixed to one common fixing target (side pad portion 21A).

Further, in the fixed structure (fixed structure 24), a tubular sewn portion (sewn portion 24B) extending linearly in the in-plane direction along the intermediate portion of the cross-linking material (pull-in cotton cloth 24A) is formed. A linear core material (core material 24C) is inserted into the cylinder of the stitching portion (sewn stitch portion 24B), and the core material (core material 24C) is coupled to the fixing target (side pad portion 21A). .. With such a configuration, the direction in which the cross-linking material (pull-in cotton cloth 24A) extends along the direction in which each pull-in target (inside cover piece 22A and wire frame 2Fc) extends with respect to the fixed target (side pad portion 21A) It is possible to simply embody a structure that can be fixed in a long shape.

In addition, a cross-linking material (pull-in cotton cloth 24A) is composed of two sheet materials, and a tubular sewing portion (sewn together) in which the above-mentioned core material (core material 24C) is inserted between the two sheet materials. The portion 24B) is formed. With such a configuration, the tubular sewn portion (sewn portion 24B) for passing the core material (core material 24C) through the cross-linking material (cotton cloth 24A) has a simple and high tensile strength. It can be formed into a staggered shape.

Further, the connecting lines (sewn lines 24A1 and 24A2) that are connected to the edges of the cross-linking material (retracting cotton cloth 24A) of the two retractable objects (inside cover piece 22A and wire frame 2Fc) are not parallel to each other. Has become. In this way, even if the connecting lines (suture lines 24A1 and 24A2) between the two pull-in targets (the inside cover piece 22A and the wire frame 2Fc) and the cross-linking material (pull-in cotton cloth 24A) are not parallel to each other, these and the cross-linking material Due to the shape of the (drawing cotton cloth 24A) and the intermediate portion (sewn portion 24B), the difference in these shapes is absorbed, and these intermediate portions have a common shape (the sewn portion where the core member 24C is inserted). 24B), it is possible to properly pull in and fix the object to be fixed (side pad portion 21A).

The other of the two pull-in objects is the seat frame (wire frame 2Fc). The intermediate portion of the cross-linking material (pull-in cotton cloth 24A) (sewn portion 24B in which the core material 24C is inserted) is suspended and fixed in the seat pad (side pad portion 21A), and the cross-linking material (pull-in cotton cloth 24A). ), the seat cover (inside cover piece 22A) is suspended in the seat pad (side pad portion 21A), and the seat pad (side pad portion 21A) is pulled in and fixed to the seat frame (wire frame 2Fc). There is. With such a structure, the seat cover (inside cover piece 22A) is hung on the seat pad (side pad portion 21A) by using the cross-linking material (pull-in cotton cloth 24A), and the seat pad (side pad portion) is hung. 21A) is pulled in and fixed to the seat frame (wire frame 2Fc), and the two pulling operations can be performed collectively and appropriately.

In addition, a straight portion fixed to the straight portion (straight portion 2Fc1) of the seat frame (wire frame 2Fc) at the edge portion of the cross-linking material (pull-in cotton cloth 24A) that is fixed to the seat frame (wire frame 2Fc). -Shaped hooks (hooks 24D) are straightly joined, and the edge of the side of the cross-linking material (pull-in cotton cloth 24A) that is joined to the seat cover (inside cover piece 22A) is a rounded seat cover (inside cover piece 22A). They are joined in a round shape along the lead-in line (lead-in line 22A1).

With such a configuration, the connecting line (sewn line 24A2) to the hook (hook 24D) for hooking the cross-linking material (pull-in cotton cloth 24A) to the seat frame (wire frame 2Fc) and the seat cover ( Even if the joining line (sewn line 24A1) to the inside cover piece 22A) is different from each other, an intermediate portion between these and the cross-linking material (pull-in cotton cloth 24A) (sewn portion 24B in which the core material 24C is inserted) Due to the shape between and, it is possible to absorb these differences in shape. Therefore, while the seat cover (inside cover piece 22A) is suspended on the seat pad (side pad portion 21A) by the cross-linking material (cotton cloth 24A), the seat pad (side pad portion 21A) is seat frame (wire frame 2Fc). It is possible to appropriately perform the two pull-in operations, that is, pulling in and fixing the same.

Although the embodiment of the present invention has been described with reference to one example, the present invention can be implemented in various forms other than the above example. For example, the configuration of the vehicle seat of the present invention is widely applied to seats other than the left seat of an automobile, vehicles other than automobiles such as railways, and seats used for other vehicles such as aircrafts and ships. Is something that can be done. Further, the configuration of the present invention can be applied to other seat structures such as a seat cushion, a headrest, an ottoman, and an armrest in addition to the seatback. Further, the structure of the present invention can be applied to a covering structure for other portions of the side portion of the seat structure.

In addition, the fixing target for fixing the seat cover in the retracted state is not only the seat pad as shown in the above embodiment, but also various structures such as a seat frame, a seat cover, and other seat structures. Is what you can do. Further, the two retractable objects to be retracted by the fixing structure may be either one of which is a seat cover or both of which are seat covers. Further, the other retraction target can be various structures such as a seat pad and a seat accessory in addition to the seat frame as shown in the above embodiment.

Further, the flexible planar cross-linking material that is cross-linked between the pulling objects may be made of a flexible planar material other than the ester canvas. Bonding to each retractable object of the cross-linking material, in addition to suturing as shown in the above embodiment, coupling by fasteners such as hook-and-loop fasteners and buttons and hooks, coupling using fasteners such as staplers and fastening pins, It may be bonded by various methods such as bonding by welding. Further, the method of retracting and fixing the intermediate portion of the cross-linking material to the fixing target is also one in which the wires assembled in each are fastened and fixed by hog rings, as shown in the above-mentioned embodiment, or hooked by a hook or It may be fixed by various methods such as binding by various methods shown above.

As for the method of forming the tubular stitching portion in the middle portion of the cross-linking material, as shown in the above embodiment, two sheet materials are superposed and two different locations are stitched together to form a tubular shape. In addition to the above, the intermediate portion of one sheet material may be folded into two and sewn to form a tubular shape. Alternatively, a method in which a separate tubular member is joined to the sheet material may be used. In addition, as a method of forming the cross-linking material with two sheet-shaped materials, not only a method of forming two sheet-shaped materials on top of each other but also a method of folding one sheet-shaped material into two are formed. Good. Further, the cross-linking material does not necessarily have to have a structure in which two sheet-like materials are superposed on each other as a whole, and the cross-linking material is partially superposed on two sheets only at an intermediate portion where the stitched portion is formed. It may be one that has been created.

Further, the joining lines joined to the edges of the two cross-linking materials to be pulled in on the respective sides may be parallel to each other. Further, when the connecting lines are not parallel to each other, when both are straightly extended so as not to be parallel to each other, at least one of them extends in a round or bent manner. In this case, at least one of them may be connected only in an intermittent or partial region that does not extend parallel to the other.

1 seat (vehicle seat)
2 Seat back 2F Back frame 2Fa Side frame 2Fb Upper frame 2Fc Wire frame (seat frame, subject to retraction)
2Fc1 straight part 3 seat cushion 4 headrest 10 top plate main part 10A shoulder rest part 10B opening 11 top plate main pad 12 top plate main cover 20 top plate side part 20A side support 21 top plate side pad 21A side pad part (seat pad, fixed Target)
21A1 Insert wire 21B Upper pad part 22 Top plate side cover 22A Inside cover piece (seat cover, pull-in target)
22A1 pull-in line 22B outside cover piece 22C back cover piece 23 inside view prevention cover 24 fixed structure 24A pull-in cotton cloth (crosslinking material)
24A1 suture line (bonding line)
24A2 Suture line (bonding line)
24B Stitching part 24B1 Stitching line 24C Core material 24D Hook 24H Hog ring

Claims (5)

A vehicle seat having a fixing structure for fixing a seat cover in a state of being drawn into a fixing target,
The fixing structure has a flexible planar cross-linking material that is cross-linked between two different pull-in objects including the seat cover, and the cross-linking intermediate portion of the cross-linking material. Is fixed by being drawn into the fixing object , and a tubular stitching portion that extends linearly in the in-plane direction along the intermediate portion is formed at the intermediate portion of the cross-linking material, and the inside of the stitching portion A vehicle seat having a configuration in which a linear core member is inserted into the core, and the core member is coupled to the fixing target . The vehicle seat according to claim 1,
A vehicle seat in which the cross-linking material is composed of two sheet-like materials, and the tubular stitching portion in which the core material is inserted is formed between the two sheet-like materials . A vehicle seat according to claim 1 or claim 2,
A vehicle seat in which the respective joining lines joined to the respective edges of the two cross-linkers to be pulled in are not parallel to each other . The vehicle seat according to any one of claims 1 to 3,
The other of the two retractable objects is a seat frame, and the intermediate portion of the cross-linking material is hung and fixed in a seat pad, and the seat cover is provided with the cross-linking material. A vehicle seat in which the seat pad is suspended in a seat pad and the seat pad is drawn and fixed to the seat frame . The vehicle seat according to claim 4 , wherein:
A straight hook hooked and fixed to a straight portion of the seat frame is fixed to an edge portion of the cross-linking material that is fixed to the seat frame in a straight shape, and is coupled to the seat cover of the cross-linking material. The seat for a vehicle in which an edge portion on a side to be joined is joined in a round shape along a rounded pulling line of the seat cover .

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