Skin fixing device and skin fixing method

Abstract

The invention provides a skin fixing device which can easily mount a skin on a fixed member and can improve the clamping force between the skin and the fixed member. The skin fixing device (K) has an insertion member (20) connected to the rear-side skin (T2), and a holding member (10) connected to the front-side skin (T1) and into which the insertion member (20) is inserted. The insertion portion (22) has an extension portion (24) extending in an insertion direction in which the insertion portion (22) is inserted into the holding portion (12). The holding section (12) has: a protruding section (16) that protrudes in an intersecting direction that intersects the insertion direction so as to restrict the rotation of the insertion section (22); and an insertion opening (19) into which the insertion section (22) is inserted inside the holding section (12). The front end part (24a) of the extending part (24) in the insertion direction extends linearly and abuts against the protruding part (16) from the intersecting direction. The width (H1) of the tip section (24a) is smaller than the width (H2) of the insertion opening (19) in the intersecting direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a skin fixing device and a skin fixing method, and particularly relates to a skin fixing device having a first fixing member linked to a first skin and a second fixing member linked to a second skin and into which the first fixing member is inserted, and a skin fixing method of inserting the first fixing member linked to the skin into the second fixing member provided in a fixed member to fix the skin to the fixed member. BACKGROUND

[0002] Conventionally, a skin fixing device is known that fixes a skin to a cushion material (a fixed member) by inserting a first fixing member linked to a first skin into a second fixing member linked to a second skin.

[0003] For example, the skin fixing device described in Patent Literature 1 has a rotation restricting portion that restricts rotation of an insertion portion with respect to a holding portion. The rotation restricting portion suppresses the insertion portion from falling out of the holding portion when a force acts in a direction of pulling out the insertion portion, by fitting a locking end portion of the holding portion into a recess portion of the insertion portion.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT LITERATURE

[0006] Patent Literature 1: Japanese Patent Application Laid-Open No. 2020-124442 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] In the skin fixing device described in Patent Literature 1, when the insertion portion is inserted into the holding portion, in order to impart tension to the skin, it is necessary to insert the insertion portion into the holding portion while pulling it. Therefore, since the insertion work is complicated and high-load work, there is a concern that the work cannot be efficiently performed.

[0009] In addition, when a large load is applied to the first skin and a force acts in a direction of pulling out the insertion portion, the locking end portion of the holding portion can expand, and thus there is a concern that the insertion portion can deviate from the holding portion.

[0010] The present application has been achieved in view of the above-described problems, and an object of the present application is to provide a skin fixing device and a skin fixing method that can easily mount a skin to a fixed member and can improve the engagement force of the skin to the fixed member.

[0011] MEANS FOR SOLVING THE PROBLEMS

[0012] According to the skin fixation device of the present invention, the problem is solved by the following means: a skin fixation device having a first fixation member connected to a first epidermis and a second fixation member connected to a second epidermis and into which the first fixation member is inserted, wherein the first fixation member has: a first base connected to the first epidermis; and an insertion portion connected to the first base and inserted into the second fixation member, the second fixation member having: a second base connected to the second epidermis; and a retaining portion connected to the second base and into which the insertion portion is inserted, the insertion portion having an extension portion extending in an insertion direction in which the insertion portion is inserted into the retaining portion, the retaining portion having a protrusion protruding in a cross direction intersecting the insertion direction to restrict rotation of the insertion portion, and an insertion port for the insertion portion to be inserted into the interior of the retaining portion, the front end portion of the extension portion extending linearly in the insertion direction and abutting against the protrusion portion from the cross direction, the width of the front end portion being smaller than the width of the insertion port in the cross direction.

[0013] With this structure, the straight-extending front end partially abuts against the protrusion, thereby facilitating insertion of the insertion part into the retaining part while restricting rotation of the insertion part. Furthermore, since the width of the front end is smaller than the width of the insertion opening, the insertion part can be easily inserted into the retaining part.

[0014] Furthermore, since the protrusion increases the rigidity of the retaining part, it can prevent plastic deformation of the retaining part. Therefore, even if the force is applied in the direction of pulling out the insertion part, it can suppress the insertion part from deviating from the retaining part, thereby increasing the engagement force between the skin and the fixed member.

[0015] Therefore, the skin can be easily installed on the fixed component, and the engagement force between the skin and the fixed component can be improved.

[0016] At this time, the retaining portion may have: a first retaining portion extending from the second base along the insertion direction and retaining the insertion portion from one side of the intersecting direction; a second retaining portion extending curvedly from the first retaining portion and retaining the insertion portion from the other side of the intersecting direction; a connecting portion, in the retaining state where the insertion portion is held by the retaining portion, being disposed at a position facing the front end of the insertion portion in the insertion direction and connecting the first retaining portion and the second retaining portion; and a locking portion disposed at the end of the second retaining portion in the insertion direction and locking the locked portion of the insertion portion in the retaining state, the protrusion being disposed on the first retaining portion and protruding from the first retaining portion to the second retaining portion, and the insertion port being disposed between the locking portion and the first retaining portion in the intersecting direction.

[0017] With the structure, since the protruding portion is provided at the first holding portion, it is possible to improve the strength of the first holding portion which is prone to plastic deformation. When a force acts in the direction of pulling out the insertion portion, the load of the first holding portion easily becomes large. Therefore, by suppressing the deformation of the first holding portion, it is possible to further improve the engagement force of the skin with the fixed member.

[0018] Further, since the locking portion is provided near the insertion port, it is not necessary to perform a complicated work compared to locking on the depth side of the holding portion.

[0019] At this time, it can be that the extension portion extends in a straight line shape in the holding state in a manner of being inclined from the first base portion toward the first holding portion.

[0020] With the structure, since the extension portion is curved and extends from the first base portion toward the first holding portion side, the first base portion and the second base portion are arranged in parallel in the holding state. Therefore, it is possible to mount the skin to the fixed member in a manner of closely contacting the first skin and the second skin without generating a step on the skin.

[0021] At this time, it can be that the protruding portion is arranged at a position closer to the connecting portion than the locking portion in the insertion direction.

[0022] With the structure, since the insertion portion is locked by the locking portion on the proximal side and abuts against the protruding portion on the depth side, it is possible to easily engage while easily inserting the insertion portion into the holding portion.

[0023] At this time, it can be that the leading end of the insertion portion abuts against the connecting portion in the holding state.

[0024] With the structure, since the insertion portion is held in the holding portion by the three points of the leading end, the locked portion, and the extension portion in the holding state, it is possible to improve the stability of the insertion portion.

[0025] At this time, it can be that the holding portion has a movement suppression portion provided at the first holding portion and suppressing movement of the first fixed member in the intersecting direction in the holding state, the movement suppression portion being provided at a position facing the locking portion across the insertion port in the intersecting direction.

[0026] With the structure, it is possible to suppress movement of the insertion portion with respect to the holding portion in the intersecting direction. In a case where the gap between the insertion portion and the holding portion is wide and the insertion portion moves greatly, when the second fixed member deviates from the first fixed member, the holding portion comes into contact with the insertion portion, and there is a concern that noise is generated. Therefore, by suppressing movement of the insertion portion with respect to the holding portion by the movement suppression portion, it is possible to suppress generation of noise.

[0027] At this time, the movement inhibiting part may protrude from the first holding part to the second holding part, and in the holding state, a gap is formed between the protruding end of the movement inhibiting part and the locked part.

[0028] With the aforementioned structure, an insertion space is provided while reducing the gap between the insertion part and the holding part, thereby making it easier for the insertion part to be inserted into the holding part.

[0029] In this case, the length from the first retaining portion to the protruding end in the intersecting direction may be shorter than the length from the first retaining portion to the protruding end of the protrusion.

[0030] With the aforementioned structure, by increasing the insertion space, the insertion part can be easily inserted into the holding part.

[0031] At this time, the locking portion may protrude from the second retaining portion side toward the first retaining portion side and have a protrusion that locks into the recess formed in the locked portion in the retaining state, and the protrusion abuts against the recess from the intersecting direction in the retaining state.

[0032] With the aforementioned structure, by abutting the protrusion of the locking portion against the recess of the locked portion, the rotation of the insertion portion relative to the retaining portion can be further restricted.

[0033] At this time, the locked portion may have a locking guide portion for guiding the recess to the protrusion.

[0034] With the aforementioned structure, the locking guide makes it easy for the locking part to lock onto the locked part, making it easier to install the skin onto the fixed component.

[0035] At this time, the extension may extend in a straight line in the holding state, inclined from the first base to the first holding portion, and the locking guide portion is an inclined surface formed between the recess and the extension on the side of the second holding portion.

[0036] With this structure, since the extension bends and extends from the first base toward the first retaining portion, the first base and the second base are arranged parallel to each other in the retaining state. Therefore, the skin can be installed on the fixed member in a way that allows the first skin and the second skin to be in close contact without creating a step difference on the skin.

[0037] In addition, by using the locking guide, the locking part can be easily locked onto the locked part, making it easier to install the skin onto the fixed component.

[0038] At this time, the width of the front end can be smaller than the width of the locking guide in the intersecting direction.

[0039] With the structure, since the width of the front end portion is smaller than the width of the locking guide portion, the insertion portion can be further easily inserted into the holding portion. Also, since the width of the locking guide portion is formed large, the rigidity of the insertion portion can be improved.

[0040] Further, according to the skin fixing method of the present application, the object is solved by a skin fixing method of inserting a first fixing member linked to a skin into a second fixing member provided to a fixed member to fix the skin to the fixed member, the skin fixing method including: an insertion step of inserting an insertion portion of the first fixing member from an insertion port provided to a holding portion of the second fixing member into an inside of the holding portion; and an abutment step of abutting an extension portion provided to the insertion portion and extending in an insertion direction in which the insertion portion is inserted into the holding portion against a protrusion portion provided to the holding portion and protruding in a crossing direction crossing the insertion direction to restrict rotation of the insertion portion, in the insertion step, a front end portion of the extension portion having a width smaller than a width of the insertion port in the crossing direction is inserted from the insertion port, in the abutment step, the front end portion extending in a straight line abuts against the protrusion portion from the crossing direction.

[0041] With the structure, the front end portion extending in a straight line partially abuts against the protrusion portion, whereby the insertion portion is easily inserted into the holding portion while the rotation of the insertion portion is restricted. Also, since the width of the front end portion is smaller than the width of the insertion port, the insertion portion can be easily inserted into the holding portion.

[0042] Therefore, the skin can be easily mounted to the fixed member, and the engagement force of the skin and the fixed member can be improved.

[0043] At this time, the skin fixing method can include a locking step of locking a locking portion provided to a vicinity of the insertion port in the holding portion and having a convex portion against a locked portion provided to the insertion portion and having a concave portion, in the locking step, the insertion portion is inserted in such a manner that a locking guide portion formed between the concave portion and the extension portion passes over the locking portion, and the convex portion is locked in the concave portion.

[0044] With the structure, the locking portion is easily locked in the locked portion by the locking guide portion, whereby the skin can be further easily mounted to the fixed member.

[0045] Effects of the Invention

[0046] According to the present application, the skin can be easily mounted to the fixed member, and the engagement force of the skin and the fixed member can be improved.

[0047] In addition, according to the present application, the skin can be attached to the fixed member in a manner that does not create a step on the skin.

[0048] In addition, according to the present application, the insertion portion can be easily inserted into the holding portion while being easily engaged.

[0049] In addition, according to the present application, the stability of the insertion portion can be improved.

[0050] In addition, according to the present application, the generation of abnormal sound can be suppressed.

[0051] In addition, according to the present application, the insertion portion can be easily inserted into the holding portion.

[0052] In addition, according to the present application, the rotation of the insertion portion with respect to the holding portion can be further restricted.

[0053] In addition, according to the present application, the skin can be further easily attached to the fixed member.

[0054] In addition, according to the present application, the insertion portion can be further easily inserted into the holding portion. In addition, the rigidity of the insertion portion can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0055] [ Figure 1 ] is a perspective view of a vehicle seat according to the present embodiment.

[0056] [ Figure 2 ] is a perspective view of the vehicle seat as viewed from the rear.

[0057] [ Figure 3 ] is a sectional view of the vehicle seat, and is a view showing a state in which a skin is attached to a cushion material.

[0058] [ Figure 4 ] is a perspective view of a skin fixing device.

[0059] [ Figure 5 ] is a front view of a holding member.

[0060] [ Figure 6 ] is a front view of an insertion member.

[0061] [ Figure 7A ] is a view showing a first step of inserting the insertion portion into the holding portion.

[0062] [ Figure 7B ] is a view showing a second step of inserting the insertion portion into the holding portion.

[0063] [ Figure 7C ] is a view showing a third step of inserting the insertion portion into the holding portion.

[0064] [ Figure 7Dis a view showing a fourth step of inserting the insertion portion into the holding portion.

[0065] [ Figure 8 ] is a sectional view of an insertion member of a modification.

[0066] [ Figure 9 ] is a view for explaining a positional relationship between a skin fixing device and an airbag device in the vehicle seat of the second embodiment. DETAILED DESCRIPTION

[0067] Hereinafter, a description will be given with reference to Figures 1-9 An embodiment of the present application will be described.

[0068] In the following description, the "front-rear direction" is the front-rear direction of the vehicle seat, and is a direction coinciding with the advancing direction of the vehicle when the vehicle is running. In addition, the "seat width direction" is the width direction of the vehicle seat, and is a direction coinciding with the left-right direction as viewed from an occupant seated on the vehicle seat. In addition, the "up-down direction" is the up-down direction of the vehicle seat, and is a direction coinciding with the vertical direction when the vehicle is running on a horizontal plane.

[0069] <First Embodiment>

[0070] As shown in Figure 1 , the vehicle seat S of the present embodiment is a seat for a vehicle occupant seated on a vehicle body floor. In the present embodiment, the vehicle seat S is used as a front seat corresponding to a front seat of a vehicle. However, it is not limited thereto, and the vehicle seat S can also be a rear seat of a vehicle, and in a vehicle including three rows of seats in the front-rear direction, it can also be used as a middle seat of a second row or a rear seat of a third row.

[0071] <Overall Structure of Seat>

[0072] As shown in Figure 1 , the vehicle seat S is mainly composed of a seat main body having a seat back 1, a seat cushion 2, and a headrest 3.

[0073] The vehicle seat S is provided with a seat frame F inside. The seat back 1 and the seat cushion 2 have a cushion material P disposed on the seat frame F, and a skin T covering the cushion material P.

[0074] As shown in Figure 1 , the seat back 1 is a backrest portion supporting the back of an occupant from the rear, and is composed by disposing the cushion material P on a backrest frame Fa constituting a skeleton of the seat back 1 and covering it with the skin T. In addition, as shown in Figure 2 , a backrest plate B is attached to the rear surface of the seat back 1.

[0075] AsFigure 3 As shown, a groove Pa extending in the width direction is formed at the lower end of the seat backrest 1 and the backrest panel B in the vertical direction. More specifically, the groove Pa is formed between the front padding material P1 of the seat backrest 1 and the rear padding material P2 of the backrest panel B.

[0076] A cover fastening device K, extending slenderly in the seat width direction, is provided in the groove Pa. Specifically, a retaining member 10 (equivalent to a second fastening member) of the cover fastening device K, described later, is installed in the groove Pa. The insertion member 20 (equivalent to a first fastening member) of the cover fastening device K is inserted into the retaining member 10, thereby mounting the cover T to the padding material P. The cover fastening device K is positioned in conjunction with the backrest frame Fa ( Figure 3 (Not shown in the diagram) The position where the seats overlap in the front-to-back direction.

[0077] like Figure 1 As shown, the seat cushion 2 is a seat that supports the occupant's seating area from below, and is formed by placing the padding material P on the cushion frame Fb that constitutes the skeleton of the seat cushion 2 and covering it with the surface T.

[0078] The headrest 3 is a support for the occupant's head from the rear, and is constructed by placing a padding material on a support (not shown) as the core material and covering it with an outer skin material.

[0079] like Figure 3 As shown, the cover T is installed under tension, covering the padding material P of the vehicle seat S. More specifically, the front cover T1 (corresponding to the second cover) on the side of the seat back 1 is connected to the retaining member 10 of the cover fixing device K, and the rear cover T2 (corresponding to the first cover) on the side of the backrest B is connected to the insertion member 20 of the cover fixing device K. Then, by inserting the insertion member 20 into the retaining member 10, the cover T is installed on the padding material P such that the front cover T1 and the rear cover T2 are flush at the lower end of the seat back 1. Because the cover T is flush, the appearance is improved.

[0080] Furthermore, the skin T is respectively provided on the retaining member 10 and the inserting member 20 of the skin fixing device K, but it is sufficient to provide it on at least one of them. For example, the following structure can also be adopted: the skin T is only provided on the inserting member 20, so that the second fixing member engages with the retaining member 10 provided on the padding material P, thereby installing the skin T on the padding material P.

[0081] like Figure 3As shown, the padding material P is formed by a foam forming a cushioning pad portion, and the cushioning pad portion is covered by a skin T. As the foam, polypropylene granule foam, polyethylene granule foam, polypropylene foam, polyethylene foam, acrylonitrile-styrene foam, ethylene-vinyl acetate copolymer resin, urethane foam materials, etc., or combinations of these materials can be used. In this embodiment, the padding material P is a polyurethane pad formed by foaming using a urethane foaming agent.

[0082] <Epidermal fixation device>

[0083] like Figure 3 As shown, the skin fixing device K is a device for fixing the skin T to the padding material P, having a retaining member 10 connected to the front skin T1 and an inserting member 20 connected to the rear skin T2. ​​The retaining member 10 is connected to the front skin T1 and disposed on the padding material P. The inserting member 20 is connected to the rear skin T2 and inserted into the retaining member 10. By inserting the inserting member 20 into the retaining member 10, the skin T is mounted on the padding material P.

[0084] Furthermore, in this embodiment, the front skin T1 is fixed to the seat back 1 and the rear skin T2 is fixed to the backrest panel B by the skin fixing device K, but it is not limited to this. For example, the skin fixing device K may also be provided in the seat back 1 of a vehicle seat S that does not include the backrest panel B. In addition, the skin fixing device K may also be provided near the rear airbag in the rear seat.

[0085] Furthermore, the surface fixing device K can be installed on the seat cushion 2, or on the headrest 3, armrests, vehicle doors, or other vehicle interior parts. Alternatively, the surface fixing device K can also be installed on a component other than the padding material P that is being fixed.

[0086] like Figures 4-6 As shown, the skin fastening device K is an engaging member that extends slenderly in the width direction of the seat, and the insertion member 20 is inserted into and engaged with the retaining member 10. The skin fastening device K is formed, for example, from a resin material with elasticity such as polypropylene.

[0087] In the following description, such as Figure 4 As shown, the direction in which the skin fixation device K extends slenderly is defined as the "length direction". Additionally, as... Figure 3 , Figure 5 , Figure 6 As shown, the long side direction of the skin fixing device K when the insertion member 20 is inserted into the holding member 10 in the insertion direction and viewed from the length direction is defined as the "height direction". Furthermore, the short side direction of the skin fixing device K when viewed from the length direction, intersecting with the insertion direction, is defined as the "width direction". Additionally, as... Figure 3As shown, the "width direction" and the "cross direction" are in line with the front and rear direction of the seat. In addition, the "height direction" and the "insertion direction" are in line with the up and down direction of the seat.

[0088] <Support member>

[0089] As shown, the support member 10 has an inverse J-shaped cross section, and has a support base 11 that links a front side skin T1, and a support portion 12 that is connected to the support base 11 and into which the support member 10 is inserted. The front side skin T1 corresponds to the second skin, the support member 10 corresponds to the second fixing member, and the support base 11 corresponds to the second base. Figures 3-5 The support member 10 is disposed inside the groove portion Pa of the cushion material P. Specifically, the front surface of the support base 11 is disposed on the rear surface of the front side cushion material PI. The support portion 12 is disposed so as to straddle the front side cushion material PI and the rear side cushion material P2. In addition, the support member 10 can also be disposed by being embedded in the cushion material P by insert molding.

[0090] As shown, the support base 11 is a portion that extends linearly in the height direction. The thickness of the support base 11 is formed to be thinner than the thickness of the support portion 12 (specifically, the first support portion 13 described later).

[0091] Figure 5 As shown, the front side skin T1 is attached to the support base 11. To be more specific, the front side skin T1 is sewn to the middle portion of the support base 11 in the height direction by the front side sewing thread T1a. When the support member 10 is disposed in the front side cushion material PI of the seat back 1, the front side skin T1 is attached to the rear surface of the support base 11 and extends downward, is bent so as to cover the bottom portion of the support base 11, and is disposed in the front side cushion material PI so as to extend toward the front side.

[0092] As shown, the support portion 12 has an inverse U-shaped cross section, and is a portion that extends from the support base 11. As shown, the support portion 12 holds the insertion member 20 when the support member 10 and the insertion member 20 are engaged. Figure 3 As shown, the support portion 12 has an inverse U-shaped cross section, and is a portion that extends from the support base 11. As shown, the support portion 12 holds the insertion member 20 when the support member 10 and the insertion member 20 are engaged.

[0093] Figure 5 As shown, the support portion 12 has an inverse U-shaped cross section, and is a portion that extends from the support base 11. As shown, the support portion 12 holds the insertion member 20 when the support member 10 and the insertion member 20 are engaged. Figure 3

[0094] ​​​The holding portion 12 has a first holding portion 13 that holds the insertion member 20 from one side in the cross direction, a second holding portion 14 that holds the insertion member 20 from the other side in the cross direction, a connecting portion 15 that connects the first holding portion 13 and the second holding portion 14, a protruding portion 16 that restricts rotation of the insertion member 20, a movement restricting portion 17 that restricts movement of the insertion member 20 in the cross direction, a locking portion 18 that locks the insertion member 20, and an insertion opening 19 into which an insertion portion 22 described later is inserted into the inside of the holding portion 12. The first holding portion 13, the second holding portion 14, and the connecting portion 15 are arranged so as to surround the insertion portion 22 of the insertion member 20 described later.

[0095] As shown in Figure 5 , the first holding portion 13 is a portion that extends linearly in the insertion direction (height direction) from the holding base 11. In the middle portion in the height direction of the first holding portion 13, the protruding portion 16 that protrudes to the inside of the holding portion 12 is formed. In addition, in the lower end portion of the first holding portion 13, the movement restricting portion 17 that protrudes to the inside of the holding portion 12 is formed.

[0096] As shown in Figure 3 , the first holding portion 13 holds the insertion portion 22 from one side (front side) in the cross direction (width direction) in a state in which the holding member 10 and the insertion member 20 are engaged and the insertion portion 22 is held in the holding portion 12.

[0097] As shown in Figure 5 , the second holding portion 14 is a portion that is bent from the first holding portion 13 and extends from the connecting portion 15, and is arranged at a position opposite to the first holding portion 13. In the lower end portion in the height direction of the second holding portion 14, the locking portion 18 that protrudes to the inside of the holding portion 12 is formed.

[0098] As shown in Figure 3 , the second holding portion 14 holds the insertion portion 22 from the other side (rear side) in the cross direction (width direction) in a state in which the holding member 10 and the insertion member 20 are engaged and the insertion portion 22 is held in the holding portion 12.

[0099] As shown in Figure 5 , the second holding portion 14 has an inclined portion 14a that is inclined away from the first holding portion 13 as it goes downward from the connecting portion 15, and an extending portion 14b that extends linearly downward from the inclined portion 14a.

[0100] The holding portion 12 is provided with the inclined portion 14a so as to be narrower toward the connecting portion 15 between the first holding portion 13 and the second holding portion 14. Therefore, it is possible to provide the holding member 10 in a compact shape.

[0101] Furthermore, a connection guide portion 14c is formed in the second retaining portion 14 to guide the insertion portion 22 to the connecting portion 15. Specifically, the connection guide portion 14c is formed on the inner side of the inclined portion 14a, and the connection guide portion 14c guides the front end 22a of the insertion portion 22 to the connecting portion 15 when the insertion portion 22 is inserted into the retaining portion 12.

[0102] The connecting guide 14c is an inclined surface that slopes toward the first retaining portion 13 as it moves toward the connecting portion 15, and is positioned opposite the protruding guide 16a described later. Since the connecting guide 14c slopes toward the first retaining portion 13 (front side in the width direction) in the insertion direction (upward in the height direction), the front end 22a of the insertion portion 22 is guided toward the connecting portion 15 via the connecting guide 14c. Therefore, because the insertion portion 22 is smoothly inserted into the retaining portion 12, the number of steps in the skin installation operation can be reduced, improving work efficiency.

[0103] Furthermore, when inserting the insertion part 22 into the holding part 12, since the insertion part 22 is guided by the connecting guide part 14c, the skin T can be installed with a simple operation of inserting the insertion part 22 from below to above. Therefore, no complicated operation is required, and it can be installed manually or automatically by machine.

[0104] like Figure 5 As shown, the connecting portion 15 is the part that connects the first retaining portion 13 and the second retaining portion 14. Specifically, the connecting portion 15 extends from the first retaining portion 13 and bends to connect to the inclined portion 14a of the second retaining portion 14.

[0105] like Figure 3 As shown, the connecting part 15 is positioned facing the front end 22a of the insertion part 22 in the insertion direction when the insertion part 22 is held in the holding part 12.

[0106] like Figure 5 As shown, the protrusion 16 is a mountain-shaped portion provided in the first retaining portion 13 and protruding from the first retaining portion 13 to the second retaining portion 14. Specifically, the protrusion 16 is formed on the inner side surface near the connecting portion 15 in the first retaining portion 13. In other words, the protrusion 16 is positioned closer to the connecting portion 15 than the locking portion 18 in the insertion direction.

[0107] A protruding guide portion 16a is formed on the protrusion 16 to guide the insertion portion 22 to the connecting portion 15. The protruding guide portion 16a is a tapered surface that tapers from the side of the first retaining portion 13 to the side of the second retaining portion 14. In other words, the protruding guide portion 16a is the inclined surface of the lower side of the mountain-shaped protrusion 16.

[0108] Because the protruding guide portion 16a is inclined toward the second retaining portion 14 in the insertion direction, the front end 22a of the insertion portion 22 is guided toward the connecting portion 15 through the protruding guide portion 16a. Therefore, since the insertion portion 22 is smoothly inserted into the retaining portion 12, the number of steps in the skin installation operation can be reduced, and the work efficiency can be improved.

[0109] Furthermore, when inserting the insertion part 22 into the holding part 12, since the insertion part 22 is guided by the protruding guide part 16a, the skin T can be installed by a simple operation of inserting the insertion part 22 from below to above.

[0110] like Figure 3 As shown, the protrusion 16 abuts against the insertion portion 22 of the insertion member 20 to restrict the rotation of the insertion portion 22. In detail, the protruding end 16b of the protrusion 16 abuts against the front end 24a of the extension 24 described later in the insertion direction from a cross direction intersecting the insertion direction.

[0111] like Figure 3 As shown, when the insertion part 22 is held in the holding part 12, when a force is applied in the direction (downward in the height direction) in which the insertion part 22 of the insertion member 20 is pulled out from the holding part 12 of the holding member 10, the front end 22a of the insertion member 20 attempts to rotate towards the first holding part 13 (front side in the width direction) with the locking part 18 as the fulcrum. At this time, the front end 24a of the extension part 24 abuts against the protruding end 16b of the protrusion part 16, thereby restricting the rotation towards the first holding part 13.

[0112] Furthermore, in the held state, the extension 24 does not need to be in contact with the protrusion 16 at all times. As long as the extension 24 is in contact with the protrusion 16 when the force is applied in the direction of pulling out the insertion part 22, rotation can be restricted.

[0113] Furthermore, for example, when inserting the insertion part 22 into the holding part 12, if an attempt is made to suppress rotation at the depth of insertion (near the connecting part 15), the operation becomes complicated, and there is a concern that the operation efficiency will be reduced. In this embodiment, since the rotation can be restricted simply by abutting the protrusion 16 with the linearly extending extension 24, it can be easily inserted into the rotation suppression position.

[0114] Thus, by partially abutting the protrusion 16 against the front end 24a of the extension 24 of the insertion part 22, the insertion part 22 can be easily inserted into the holding part 12 while the rotation of the insertion part 22 can be restricted.

[0115] Furthermore, by providing the protrusion 16 in the first retaining portion 13, the first retaining portion 13 is less prone to plastic deformation. More specifically, when a force is applied in the direction of pulling out the insertion portion 22, the force acts on the first retaining portion 13 due to the rotation of the insertion member 20, thus raising concerns about plastic deformation of the first retaining portion 13. Here, by forming the protrusion 16 at the starting point of plastic deformation, the rigidity of the first retaining portion 13 can be improved.

[0116] Thus, since the protrusion 16 is provided at the position where deformation of the retaining member 10 is suppressed, deformation can be suppressed with minimal structural deformation. Therefore, the rigidity of the retaining member 10 can be improved without increasing the thickness of the first retaining part 13.

[0117] like Figure 5 As shown, the movement inhibition portion 17 is a trapezoidal portion provided in the first retaining portion 13 and protruding from the first retaining portion 13 to the second retaining portion 14. Specifically, it is formed on the inner side near the retaining base 11 in the first retaining portion 13 and is positioned opposite to the locking portion 18.

[0118] The movement inhibition part 17 includes: a protruding end 17a, which is an inner end face and faces the insertion part 22 in the holding state; a movement guide part 17b, which guides the insertion part 22 to the connecting part 15; and a holding and positioning part 17c, which positions the anterior skin T1.

[0119] like Figure 3 As shown, the movement suppression part 17 is positioned opposite the locking part 23 of the insertion part 22 in the holding state, and suppresses movement in the cross direction in the holding state. In addition, in the holding state, a gap SP is formed between the protruding end 17a of the movement suppression part 17 and the locking part 23.

[0120] In more detail, when the force is applied in the direction of pulling out the insertion part 22 while in the holding state, the inclined part 23c of the locking part 23 (described later) abuts against the protruding end 17a of the movement inhibition part 17 from the cross direction, thereby inhibiting movement in the cross direction.

[0121] like Figure 5 As shown, in the intersecting direction, the length H3 from the first retaining part 13 to the protruding end 17a is shorter than the length H4 from the first retaining part 13 to the protruding end 16b of the protrusion 16.

[0122] Thus, by reducing the thickness of the movement-inhibiting portion 17 to increase the insertion space (insertion port 19), the insertion portion 22 can be easily inserted into the retaining portion 12. In addition, by increasing the thickness of the protrusion 16, the plastic deformation of the first retaining portion 13 can be further suppressed.

[0123] For example, if the gap SP between the retaining part 12 and the insertion part 22 is large, the insertion part 22 may come into contact with the retaining part 12 when the insertion part 22 is pulled out, which may cause noise. In this embodiment, since the gap SP between the retaining part 12 and the insertion part 22 is narrowed by moving the suppression part 17, the generation of noise can be suppressed.

[0124] In addition, by reducing the gap SP between the holding part 12 and the insertion part 22, and also providing a space for the insertion part 22 to be inserted into the holding part 12, the insertion part 22 can be easily inserted into the holding part 12.

[0125] The movement guide portion 17b is a tapered surface that tapers from the first holding portion 13 side to the second holding portion 14 side. In other words, the movement guide portion 17b is the inclined surface on the lower side of the trapezoidal movement inhibiting portion 17.

[0126] Because the moving guide 17b is inclined toward the second retaining part 14 in the insertion direction, the front end 22a of the insertion part 22 is guided toward the connecting part 15 by the moving guide 17b. Therefore, since the insertion part 22 is smoothly inserted into the retaining part 12, the steps of the skin installation operation can be reduced, and the operation efficiency can be improved.

[0127] Furthermore, when inserting the insertion part 22 into the holding part 12, since the insertion part 22 is guided by the moving guide part 17b, the skin T can be installed by a simple operation of inserting the insertion part 22 from below to above.

[0128] The positioning part 17c is the lower end face of the trapezoidal-shaped movement inhibition part 17. For example... Figure 3 As shown, when the front skin T1 is installed on the retaining base 11, the front mounting end T1b of the front skin T1 abuts against the retaining positioning part 17c from below, thereby determining the mounting position.

[0129] Thus, since the installation position of the front cover T1 is determined by the retaining positioning part 17c, the front cover T1 can be installed without positional displacement when sewing it to the retaining member 10. Furthermore, when the insertion member 20 engages with the retaining member 10, the cover T can be installed on the padding material P in a manner where the front cover T1 and the rear cover T2 are flush with the outer surface of the seat.

[0130] like Figure 5 As shown, the locking portion 18 is provided at the lower end of the second retaining portion 14 in the height direction. Specifically, the locking portion 18 protrudes from the second retaining portion 14 side toward the first retaining portion 13 side and is positioned opposite the movement inhibiting portion 17.

[0131] Since the locking portion 18 is provided near the insertion opening 19 (the front side in the insertion direction) in the holding portion 12, the locking portion 18 can be easily locked in the locked portion 23.

[0132] As shown in Figure 3 , the locking portion 18 is locked in the locked portion 23 of the insertion portion 22 in the held state. To be more specific, the locking portion 18 has a protrusion 18a that is locked in a recess 23a formed in the locked portion 23 in the held state.

[0133] As shown in Figure 6 , the protrusion 18a protrudes in the locking portion 18 toward the insertion opening 19. As shown in Figure 3 , the protrusion 18a abuts against the recess 23a in the held state from the cross direction. To be more specific, a protruding end surface 18b of the protrusion 18a abuts against an inner side surface of the recess 23a, and the locking portion 18 is locked in the locked portion 23. In addition, an upper end surface 18c of the protrusion 18a abuts against the inner side surface of the recess 23a, and the locking portion 18 is locked in the locked portion 23. In this way, by abutting the protrusion 18a against the recess 23a, when a force is applied in the direction of pulling out the insertion portion 22, the rotation of the insertion portion 22 about the locking portion 18 as a fulcrum can be restricted.

[0134] The insertion opening 19 is a gap portion for the insertion portion 22 to be inserted into the inside of the holding portion 12 and extends in the length direction. The insertion opening 19 is provided between the locking portion 18 and the movement suppression portion 17 of the first holding portion 13 in the cross direction. In other words, the movement suppression portion 17 is provided at a position facing the locking portion 18 with the insertion opening 19 interposed therebetween in the cross direction.

[0135] <Insertion member>

[0136] As shown in Figure 3 , Figure 4 , Figure 6 , the insertion member 20 has a substantially I-shaped cross section, and has an insertion base portion 21 that links a rear side skin T2 and an insertion portion 22 that is connected to the insertion base portion 21 and is inserted into the holding member 10. The rear side skin T2 corresponds to the first skin, the insertion member 20 corresponds to the first fixed member, and the insertion base portion 21 corresponds to the first base portion.

[0137] The insertion member 20 is inserted into the holding portion 12 of the holding member 10 and is disposed inside the cushion material P. To be more specific, the insertion base portion 21 is disposed between the holding base portion 11 and the rear side cushion material P2, and a rear surface of the insertion base portion 21 abuts against a front surface of the rear side cushion material P2. The insertion portion 22 is inserted into the holding portion 12 of the holding member 10 and is locked in the locking portion 18.

[0138] As shown in Figure 6As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11.

[0139] As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11. Figure 3 As shown, the rear side skin T2 is attached to the insertion base 21. To be more specific, the rear side skin T2 is sewn to the middle portion of the insertion base 21 in the height direction by the rear side sewing thread T2a. When the insertion member 20 is inserted into the holding member 10 and engaged, the rear side skin T2 is attached to the front surface of the insertion base 21 and extends downward, is bent so as to cover the bottom of the insertion base 21, and is disposed so as to extend toward the rear side in the rear side pad material P2.

[0140] As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11. Figure 6 Figure 3 As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11.

[0141] The insertion portion 22 has a caught portion 23 caught by the holding portion 12 in the held state, and a linearly extending portion 24 extending in the insertion direction of the insertion member 20 into the holding member 10.

[0142] As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11. Figure 6 As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11.

[0143] The caught portion 23 is formed with a recessed portion 23a for the protrusion 18a of the caught portion 18 to be caught, a caught guide portion 23b for guiding the recessed portion 23a to the protrusion 18a, a beveled portion 23c formed on the front side of the recessed portion 23a, and an insertion positioning portion 23d for positioning the rear side skin T2.

[0144] As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11. Figure 3 As shown, the insertion base 21 is a portion extending linearly in the height direction. The thickness (length in the width direction) of the insertion base 21 is formed to be thicker than that of the holding base 11.

[0145] ​Further, for example, when the insertion portion 22 is inserted into the holding portion 12, if an attempt is made to lock it on the depth side of the insertion (near the connection portion 15) to inhibit rotation, the work becomes complicated, and there is a concern that the work efficiency will decrease. In the present embodiment, since the locking portion 18 is locked to the locked portion 23 on the proximal side in the insertion direction (the insertion base portion 21 side), the insertion portion 22 can be easily inserted into the holding portion 12 while rotation of the insertion portion 22 is restricted.

[0146] Further, since the locking portion 18 is provided on the proximal side in the insertion direction, when the insertion portion 22 is detached from the holding portion 12, by expanding the locking portion 18 to the rear in the width direction, the insertion member 20 can be easily detached from the holding member 10.

[0147] As shown in FIG. 6, the locking guide portion 23b is an inclined surface formed between the recessed portion 23a on the second holding portion 14 side and the extension portion 24. The width H1 of the front end portion 24a of the extension portion 24 is smaller than the width H5 of the locking guide portion 23b in the intersecting direction. Since the thickness of the front end portion 24a is formed to be small, the insertion portion 22 can be further easily inserted. Further, since the thickness of the locking guide portion 23b is formed to be large, the rigidity of the insertion portion 22 can be improved.

[0148] As shown in FIG. 6, the locking guide portion 23b is an inclined surface formed between the recessed portion 23a on the second holding portion 14 side and the extension portion 24. The width H1 of the front end portion 24a of the extension portion 24 is smaller than the width H5 of the locking guide portion 23b in the intersecting direction. Since the thickness of the front end portion 24a is formed to be small, the insertion portion 22 can be further easily inserted. Further, since the thickness of the locking guide portion 23b is formed to be large, the rigidity of the insertion portion 22 can be improved. Figure 3 As shown in FIG. 6, in the held state, the locking guide portion 23b is disposed at a position facing the extension portion 14b of the second holding portion 14.

[0149] Since the locking guide portion 23b is inclined to the first holding portion 13 side in the insertion direction, the recessed portion 23a is guided to the protruded portion 18a. Therefore, since the protruded portion 18a of the locking portion 18 is smoothly locked to the recessed portion 23a of the locked portion 23, the number of procedures of the skin mounting work can be reduced, and the work efficiency can be improved.

[0150] Figure 6 As shown in FIG. 6, the inclined surface portion 23c is an inclined surface formed between the recessed portion 23a on the second holding portion 14 side and the insertion positioning portion 23d. As shown in FIG. 6, in the held state, the inclined surface portion 23c is disposed at a position facing the protruded end portion 17a of the movement inhibition portion 17. Figure 3 As shown in FIG. 6, in the held state, the inclined surface portion 23c is disposed at a position facing the protruded end portion 17a of the movement inhibition portion 17. The inclined surface portion 23c inhibits movement of the recessed portion 23a in the width direction together with the movement inhibition portion 17 in the held state.

[0151] By the inclined surface portion 23c, an inclined surface is formed while inhibiting movement of the recessed portion 23a in the width direction, and thus it can be formed in a compact shape. Further, since it is inclined in a manner connecting the recessed portion 23a and the insertion positioning portion 23d, the rigidity of the locked portion 23 can be improved.

[0152] Figure 6 As shown in FIG. 6, the inclined surface portion 23c is an inclined surface formed between the recessed portion 23a on the second holding portion 14 side and the insertion positioning portion 23d. As shown in FIG. 6, in the held state, the inclined surface portion 23c is disposed at a position facing the protruded end portion 17a of the movement inhibition portion 17.​​Figure 6 As shown, the insertion positioning part 23d is the lower end of the inclined part 23c, and it positions the posterior epidermis T2. Specifically, as... Figure 3 As shown, when the rear skin T2 is installed in the insertion base 21, the rear mounting end T2b of the rear skin T2 abuts against the insertion positioning part 23d from below, thereby determining the installation position.

[0153] Thus, since the installation position of the rear cover T2 is determined by the insertion positioning part 23d, the rear cover T2 can be installed without positional displacement when sewing it to the insertion member 20. Furthermore, as described above, when the insertion member 20 engages with the retaining member 10, the cover T can be installed on the padding material P in a manner where the front cover T1 and the rear cover T2 are flush with each other on the outer surface of the seat.

[0154] like Figure 3 As shown, the extension 24 has a roughly I-shaped cross-section, extends in a straight line from the upper part of the locked part 23 toward the insertion direction (upper in the height direction), and is inclined to the front side in the width direction.

[0155] like Figures 7A-7D As shown, the extension 24 extends in a straight line in the holding state, inclined from the insertion base 21 toward the first holding part 13. When the insertion part 22 is inserted into the holding part 12, the upper end of the extension 24 (the front end 22a of the insertion part 22) is guided by the moving guide 17b, the protruding guide 16a and the connecting guide 14c and is inserted to a position opposite to the connecting part 15.

[0156] The front end portion 24a of the extension 24 in the insertion direction (specifically, the flat surface on the side of the first retaining portion 13 in the extension 24) extends in a straight line. The front end portion 24a abuts against the protruding end portion 16b of the protrusion 16 from the intersecting direction.

[0157] Thus, the front end 24a (the front end 22a side of the insertion part 22) of the linearly extending extension 24 abuts against the protrusion 16 and is restricted from rotation. By partially abutting the extension 24 against the protrusion 16, the insertion part 22 can be easily inserted into the retaining part 12 while the rotation of the insertion part 22 can be restricted.

[0158] like Figure 7A As shown, the width H1 of the front end portion 24a is smaller than the width H2 of the insertion port 19 in the intersecting direction. Thus, since the thickness of the front end portion 24a of the extension 24 is small, the insertion portion 22 can be easily inserted into the holding portion 12.

[0159] Further, the front end 22a of the insertion portion 22 abuts against the connecting portion 15 in the holding state. Therefore, since the insertion portion 22 is held in the holding portion 12 by the three points of the front end 22a, the locking portion 23, and the extension portion 24 in the holding state, stability can be improved.

[0160] Further, the extension portion 24 is bent toward the first holding portion 13 side with respect to the insertion base portion 21 in the insertion direction. Therefore, since the holding base 11 and the insertion base portion 21 become in a state of being parallel along the insertion direction in the holding state, the skin T can be attached to the cushion material P in a manner that the front side skin T1 and the rear side skin T2 are in close contact without a step being generated on the skin T.

[0161] Thus, by reducing the thickness of the front end portion 24a of the extension portion 24, the insertion portion 22 can be easily inserted into the holding portion 12. Further, by the partial abutment of the protrusion portion 16 and the front end portion 24a of the insertion portion 22, the rotation of the insertion portion 22 can be restricted while making the insertion portion 22 easy to be inserted into the holding portion 12.

[0162] Further, the rigidity of the holding portion 12 is improved by the protrusion portion 16, and thus plastic deformation of the holding portion 12 can be prevented. Therefore, even when an external force acts in a direction in which the skin T is away from the cushion material P (the fixed member), the insertion portion 22 can be inhibited from deviating from the holding portion 12, and thus the engagement force of the skin T and the cushion material P can be improved.

[0163] <SKIN FIXING METHOD>

[0164] Next, a skin fixing method of fixing the skin T to the cushion material P (corresponding to the fixed member) will be described. Specifically, the insertion member 20 (corresponding to the first fixing member) linked to the skin T is inserted into the holding member 10 (corresponding to the second fixing member) provided in the cushion material P to fix the skin T to the cushion material P. Figure 7B A skin fixing method of inserting the insertion member 20 (corresponding to the first fixing member) linked to the skin T into the holding member 10 (corresponding to the second fixing member) provided in the cushion material P to fix the skin T to the cushion material P will be described.

[0165] The skin fixing method includes: an insertion process of inserting the insertion portion 22 of the insertion member 20 into the inside of the holding portion 12 from the insertion port 19 provided in the holding portion 12 of the holding member 10; an abutment process of abutting the extension portion 24 extending in the insertion direction against the protrusion portion 16 protruding in a direction intersecting the insertion direction to restrict the rotation of the insertion portion 22; and a locking process of locking the locking portion 18 to the locked portion 23. Further, the locking portion 18 can be locked to the locked portion 23 after the extension portion 24 is abutted against the protrusion portion 16, or the extension portion 24 can be abutted against the protrusion portion 16 after the locking portion 18 is locked to the locked portion 23. Further, the abutment process and the locking process can be performed at the same time.

[0166] As described above, the skin fixing method according to the present embodiment can be applied to the skin fixing method of the skin T and the cushion material P. Figure 7CAs shown, in the "insertion step", the worker inserts the front end portion 24a of the extension portion 24 from the insertion port 19, and inserts the extension portion 24 into the inside of the holding portion 12. To be more specific, the worker holds the insertion base portion 21 to which the rear side skin T2 is attached, and inserts the front end portion 24a from the insertion port 19 into the inside of the holding portion 12 from the lower side to the upper side. At this time, the front end 22a of the insertion portion 22 is guided to the inside of the holding portion 12 by the movement guide portion 17b of the movement suppression portion 17, and comes into abutment with the protrusion guide portion 16a.

[0167] As shown, the worker further inserts the insertion portion 22 upward. At this time, the front end 22a of the insertion portion 22 is guided toward the connection portion 15 by the protrusion guide portion 16a of the protrusion portion 16. In addition, the protrusion 18a of the locking portion 18 is guided toward the recess 23a by the locking guide portion 23b of the locked portion 23. Figure 7D As shown, in the "abutment step", the worker further inserts the insertion portion 22 upward. The front end 22a of the insertion portion 22 is further guided toward the connection portion 15 by the protrusion end portion 16b of the protrusion portion 16 while being elastically deformed. At this time, the front end portion 24a extending in a straight line comes into abutment with the protrusion end portion 16b of the protrusion portion 16 from the intersecting direction.

[0168] Figure 8 In addition, the protrusion 18a of the locking portion 18 is further guided to the recess 23a by the locking guide portion 23b of the locked portion 23 by being elastically deformed by the second holding portion 14.

[0169] As shown, in the "abutment step", the worker further inserts the insertion portion 22 upward. The front end 22a of the insertion portion 22 is further guided toward the connection portion 15 by the protrusion end portion 16b of the protrusion portion 16 while being elastically deformed. At this time, the front end portion 24a extending in a straight line comes into abutment with the protrusion end portion 16b of the protrusion portion 16 from the intersecting direction.

[0170] As shown, in the "abutment step", the worker further inserts the insertion portion 22 upward. The front end 22a of the insertion portion 22 is further guided toward the connection portion 15 by the protrusion end portion 16b of the protrusion portion 16 while being elastically deformed. At this time, the front end portion 24a extending in a straight line comes into abutment with the protrusion end portion 16b of the protrusion portion 16 from the intersecting direction. Figure 8 In the "locking step", the worker further inserts the insertion portion 22 upward. The front end 22a of the insertion portion 22 is guided by the connection guide portion 14c, and is inserted to a position facing the connection portion 15. At this time, the front end portion 24a of the extension portion 24 comes into abutment with the protrusion end portion 16b. Then, the front end 22a of the insertion portion 22 comes into abutment with the connection portion 15.

[0171] Then, the worker inserts the insertion portion 22 so that the locking guide portion 23b passes over the locking portion 18, and locks the protrusion 18a in the recess 23a. In other words, the protrusion 18a of the locking portion 18 is locked in the recess 23a so as to pass over the locking guide portion 23b of the locked portion 23.

[0172] Thus, the extension portion 24 of the insertion portion 22 is inserted into the holding portion 12, the front end portion 24a comes into abutment with the protrusion end portion 16b from the intersecting direction, and the protrusion 18a is locked in the recess 23a, whereby the holding state is achieved, and the skin T is mounted to the cushion material P.

[0173] ​Since the insertion portion 22 is held by the three points of the front end 22a, the locking portion 23, and the extension portion 24 in the holding state, the stability of the insertion portion 22 in the holding state can be improved. Further, in the holding state, the front skin T1 and the rear skin T2 are in contact with each other between the holding base 11 and the insertion base 21.

[0174] In the "insertion process", since the front end portion 24a of the extension portion 24 having a width H1 smaller than the width H2 of the insertion port 19 in the intersecting direction is inserted from the insertion port 19, the worker can easily insert the insertion portion 22 into the inside of the holding portion 12.

[0175] Further, when the insertion portion 22 is inserted into the holding portion 12, since the insertion portion 22 is guided by the movement guide portion 17b, the protrusion guide portion 16a, and the connection guide portion 14c, the skin T can be further easily mounted.

[0176] Further, in the "abutting process", the worker abuts the front end portion 24a extending in a straight line against the protrusion portion 16 in the intersecting direction.

[0177] Further, in the "locking process", the worker inserts the insertion portion 22 so that the locking guide portion 23b formed between the recess portion 23a and the extension portion 24 passes over the locking portion 18, and locks the protrusion portion 18a in the recess portion 23a. Therefore, the worker can easily insert the insertion member 20 from below to above the holding member 10 so that the insertion portion 22 becomes in the holding state of being held in the holding portion 12.

[0178] Therefore, for example, a complex insertion work of rotating and fitting in the depth side (near the connection portion 15) of the holding portion 12 can not be needed. Further, since it is a simple work of inserting the insertion portion 22 from below to above, not only manual mounting but also automatic mounting by a machine can be possible.

[0179] <Transformation example of skin fixing device>

[0180] Next, based on Figure 8 The skin fixing device K1 of the transformation example will be described. Further, for the structures repeated with the skin fixing device K, the description will be omitted.

[0181] The insertion member 30 of the skin fixing device K1 is different in shape from the insertion member 20 of the skin fixing device K.

[0182] The insertion member 30 has an insertion base 31 which links the rear skin T2, and an insertion portion 32 which is connected to the insertion base 31 and which is inserted into the holding member 10.

[0183] As Figure 8The insertion base 31 is a portion that extends linearly in the height direction. The rear side skin T2 is attached to both sides in the front-rear direction of the insertion base 31. In detail, the rear side skin T2 is attached to the middle portion in the height direction of the insertion base 31 by the rear side stitching line T2a.

[0184] As shown in FIG. 6, the insertion portion 32 is a portion that extends upward from the insertion base 31 and has a linearly extending portion 34 that extends in the insertion direction of the insertion member 30 into the holding member 10 and a portion that is caught in the holding portion 12 in the held state. Figure 9

[0185] As shown in FIG. 6, the insertion portion 32 is a portion that extends upward from the insertion base 31 and has a linearly extending portion 34 that extends in the insertion direction of the insertion member 30 into the holding member 10 and a portion that is caught in the holding portion 12 in the held state. ​ As shown in FIG. 6, the caught portion 33 is formed with a recessed portion 33a having a cross-sectional concave shape for catching the protruding portion 18a of the caught portion 18, a beveled portion 23c formed on the front side of the recessed portion 33a, and an insertion positioning portion 33d for positioning the rear side skin T2.

[0186] Thus, since the inclined portion (the beveled portion 23c of the insertion member 20) is not formed on the upper portion of the recessed portion 33a, the insertion portion 32 can be formed in a more compact shape.

[0187] <Second Embodiment>

[0188] ​ Next, the vehicle seat S2 according to the second embodiment will be described.

[0189] In the vehicle seat S2, the skin fixing device K is disposed in the groove portion Pa near the airbag device 40 in the rear seat.

[0190] As shown in FIG. 7, the airbag device 40 has an airbag 41, an inflator 42 that supplies gas to the airbag 41, a base portion 43 on which the airbag 41 and the inflator 42 are mounted, a fixing member 44 that fixes the base portion 43 to the seat frame F, and a cushion 45 that guides the deployment of the airbag 41.

[0191] The airbag device 40 is mounted to the seat frame F by the fixing member 44 such as a bolt and is housed inside the cushion material P. When gas is ejected from the inflator 42 and the airbag 41 is inflated by being guided by the cushion 45, the cushion material P is broken at the breaking portion Pb, the skin T is cut, and the airbag 41 is deployed outward.

[0192] The skin fixing device K is disposed in the groove portion Pa on the rear side of the airbag device 40 in the seat front-rear direction. In other words, the skin fixing device K is provided on the opposite side of the side (the breaking portion Pb side) on which the airbag 41 is deployed.

[0193] ​​As described above, since the holding portion 12 of the holding member 10 narrows toward the connection portion 15 between the first holding portion 13 and the second holding portion 14, the skin fixing device K is configured in a compact shape. Therefore, by the compact skin fixing device K, it is possible to improve the freedom of arrangement of the airbag device 40. In addition, by increasing the engagement force of the skin fixing device K, even in the case where the airbag device 40 operates due to a vehicle collision, it is possible to further suppress the skin T from deviating from the cushion material P.

[0194] <OTHER EMBODIMENTS>

[0195] The skin fixing device K can also be used to mount a skin covering a center armrest. At this time, the skin fixing device K can be mounted at a rear end portion of the center armrest. As described above, by configuring the skin fixing device K in a compact shape, it is possible to make the center armrest easy to turn.

[0196] In the embodiment, a vehicle seat for an automobile is described as a specific example, but is not particularly limited, and can be used for various seats such as an office chair for work, a wheelchair, a child seat for a shopping cart, in addition to a two-wheeled seat for a motorcycle, a vehicle seat for a train or a bus, a vehicle seat for an airplane or a ship, and the like.

[0197] In the present embodiment, a vehicle seat of the present application is mainly described.

[0198] However, the embodiment is merely one example for facilitating understanding of the present application, and is not intended to limit the present application. The present application can be changed and improved without departing from the gist thereof, and the present application of course includes equivalents thereof.

[0199] EXPLANATION OF REFERENCE NUMERALS

[0200] S, S2: Vehicle seat

[0201] P: Cushion material (fixed member)

[0202] P1: Front side cushion material

[0203] P2: Rear side cushion material

[0204] Pa: Groove portion

[0205] Pb: Breaking portion

[0206] T: Skin

[0207] T1: Front side skin (second skin)

[0208] T1a: Front side stitching line

[0209] T1b: Front side mounting end portion

[0210] T2: rear side skin (first skin)

[0211] T2a: rear side suture line

[0212] T2b: rear side mounting end

[0213] K, K1: skin fixing device

[0214] B: backrest plate

[0215] F: seat frame

[0216] Fa: backrest frame

[0217] Fb: cushion frame

[0218] 1: seat backrest

[0219] 2: seat cushion

[0220] 3: headrest

[0221] 10: holding member (second fixing member)

[0222] 11: holding base (second base)

[0223] 12: holding portion

[0224] 13: first holding portion

[0225] 14: second holding portion

[0226] 14a: inclined portion

[0227] 14b: extension portion

[0228] 14c: connection guide portion

[0229] 15: connection portion

[0230] 16: protrusion portion

[0231] 16a: protrusion guide portion

[0232] 16b: protrusion end portion

[0233] 17: movement suppression portion

[0234] 17a: protruding end portion

[0235] 17b: movement guide portion

[0236] 17c: holding positioning portion

[0237] 18: latching portion

[0238] 18a: convex portion

[0239] 18b: protruding end surface

[0240] 18c: upper end surface

[0241] 20: insertion member (first fixing member)

[0242] 21: insertion base (first base)

[0243] 22: insertion portion

[0244] 22a: front end

[0245] 23: being-stuck portion

[0246] 23a: recessed portion

[0247] 23b: being-stuck guide portion

[0248] 23c: inclined surface portion

[0249] 23d: insertion positioning portion

[0250] 24: extension portion

[0251] 24a: front end portion

[0252] 30: insertion member

[0253] 31: insertion base

[0254] 32: insertion portion

[0255] 33: being-stuck portion

[0256] 33a: recessed portion

[0257] 33d: insertion positioning portion

[0258] 34: extension portion

[0259] 40: airbag device

[0260] 41: airbag

[0261] 42: inflator

[0262] 43: base portion

[0263] 44: fixing member

[0264] 45: pad

[0265] SP: gap

Claims

1. A skin fixing device having a first fixing member attached to a first skin and a second fixing member attached to a second skin and into which the first fixing member is inserted, the skin fixing device being characterized by, the first fixing member having: a first base to which the first skin is attached; and an insertion portion connected to the first base and inserted into the second fixing member, the second fixing member having: a second base to which the second skin is attached; and a holding portion connected to the second base and into which the insertion portion is inserted, the insertion portion having an extension portion extending in an insertion direction in which the insertion portion is inserted into the holding portion, the holding portion having a protruding portion protruding in a cross direction intersecting the insertion direction to restrict rotation of the insertion portion, and an insertion opening for an inside of the holding portion into which the insertion portion is inserted, a leading end portion of the extension portion extending in a straight line in the insertion direction and abutting against the protruding portion from the cross direction, a width of the leading end portion being smaller than a width of the insertion opening in the cross direction.

2. The skin fixing device according to claim 1, characterized by, the holding portion having: a first holding portion extending from the second base in the insertion direction and holding the insertion portion from one side of the cross direction; a second holding portion extending from the first holding portion in a bent manner and holding the insertion portion from the other side of the cross direction; a connecting portion, in a state in which the insertion portion is held in the holding portion, disposed at a position facing a leading end of the insertion portion in the insertion direction and connecting the first holding portion and the second holding portion; and a locking portion provided at an end portion of the second holding portion in the insertion direction and locking a locked portion of the insertion portion in the state, the protruding portion being provided at the first holding portion and protruding from the first holding portion toward the second holding portion, the insertion opening being provided between the locking portion and the first holding portion in the cross direction. the extension portion extending in a straight line in the state in a manner inclined from the first base toward the first holding portion.

3. The skin fixation device of claim 2, wherein the protruding portion being disposed at a position closer to the connecting portion than the locking portion in the insertion direction.

4. The skin fixation device of claim 2, wherein a leading end of the insertion portion abutting against the connecting portion in the state.

5. The skin fixation device of claim 2, wherein the holding portion having a movement suppression portion provided at the first holding portion and suppressing movement of the first fixing member in the cross direction in the state, 6. The skin fixation device of claim 2, wherein the movement suppression portion being disposed at a position facing the locking portion across the insertion opening in the cross direction. the movement suppression portion protruding from the first holding portion toward the second holding portion, 7. The skin fixation device of claim 6, wherein a gap being formed between a protruding end portion of the movement suppression portion and the locked portion in the state. a length from the first holding portion to the protruding end portion being shorter than a length from the first holding portion to a protruding end portion of the protruding portion in the cross direction.

8. The skin fixation device of claim 7, wherein, ​ 9. The skin securement apparatus of claim 2, wherein, The locking portion protrudes from the second holding portion side to the first holding portion side and has a protrusion that locks in a recess formed in the locked portion in the held state, The protrusion abuts against the recess from the intersecting direction in the held state.

10. The skin fixation device of claim 9, wherein, The locked portion has a locking guide portion for guiding the recess to the protrusion.

11. The epidermal fixation device of claim 10, wherein, The extension portion extends in a straight line in a manner inclined from the first base portion to the first holding portion in the held state, The locking guide portion is an inclined surface formed between the recess on the second holding portion side and the extension portion.

12. The skin fixation device of claim 10, wherein, The width of the front end portion is smaller than the width of the locking guide portion in the intersecting direction.

13. An epidermis fixing method of inserting a first fixing member linked to an epidermis into a second fixing member provided in a fixed member to fix the epidermis to the fixed member, the epidermis fixing method characterized by comprising: an insertion process of inserting an insertion portion of the first fixing member from an insertion port provided in a holding portion of the second fixing member into an inside of the holding portion; and an abutment process of abutting an extension portion provided in the insertion portion and extending in an insertion direction in which the insertion portion is inserted into the holding portion against a protruding portion provided in the holding portion and protruding in an intersecting direction intersecting the insertion direction to restrict rotation of the insertion portion, in the insertion process, a front end portion of the extension portion having a width smaller than a width of the insertion port in the intersecting direction is inserted from the insertion port, in the abutment process, the front end portion extending in a straight line abuts against the protruding portion from the intersecting direction.

14. The skin fixation method of claim 13, wherein a locking process of locking a locking portion provided in the vicinity of the insertion port of the holding portion and having a protrusion in the locked portion against a locked portion provided in the insertion portion and having a recess, in the locking process, the insertion portion is inserted in a manner in which a locking guide portion formed between the recess and the extension portion passes over the locking portion to lock the protrusion against the recess.

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