JP2019031134A - Vehicle seat - Google Patents

Abstract

To enable a fracture part of a skin to fracture during action of an airbag even in a state where a fastener is open.SOLUTION: A vehicle seat includes: side frames forming side parts of a seat frame; seat pads 40A, 40B disposed at the outer sides of the side frames; skins 50A, 50B covering the seat pads 40A, 40B; and an airbag module 20 disposed between the seat pads 40A, 40B and the side frame. The skin has: a first skin part and a second skin part; and a fastener 52 which is provided so as to separate the first skin part from the second skin part. The first skin part has: a first end part which becomes a fracture part when an airbag expands; and a second end part 58 which is engaged with the side frame. The fastener 52 is provided between the first end part and the second end part 58.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat including a side airbag device.

  2. Description of the Related Art A vehicle seat including a side airbag device that inflates and deploys an airbag provided on a side portion of a vehicle seat at the time of a side collision of the vehicle to protect an occupant is known (for example, the following patent document) 1).

Japanese Patent Laying-Open No. 2015-20457

In the above prior art, a fastener is provided on the skin, and a part of the skin can be opened and closed by the fastener.
However, if the airbag device is operated with the fastener opened, there is a risk that the skin will not be tensioned and the fracture portion of the skin will not break.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat that can break the rupture portion of the skin during the operation of the airbag even when the fastener is opened. is there.

  According to the vehicle seat according to the present invention, there is provided a side frame that constitutes a side portion of a seat frame, a seat pad that is disposed outside the side frame, a skin that covers the seat pad, and an airbag. An airbag module disposed between the seat pad and the side frame, wherein the skin includes a first skin part and a second skin part, and the first skin part and the second skin part. A first end portion that becomes a breaking portion when the airbag is deployed, and a second end portion that is locked to the side frame. And the fastener is solved by being provided between the first end and the second end.

According to the vehicle seat described above, even if the airbag is activated when the fastener is open, tension is applied to the first skin portion, so that the fracture portion can be broken.
Thereby, even when the fastener of the skin is open, the airbag can be inflated from the broken portion provided in the seat.

In the above vehicle seat, it is preferable that the second end portion has a hook, and the hook is locked to a rear end portion of the side frame.
By doing so, the workability of the work of assembling the epidermis to the side frame can be improved.

In the above vehicle seat, it is preferable that the second end portion has a plurality of the hooks.
By doing so, the stability of the attachment of the epidermis to the side frame can be improved.

In the above vehicle seat, the hook is preferably a J hook.
By doing so, it becomes easy to attach the second end portion of the skin to the rear end portion of the side frame, and workability is improved.

In the vehicle seat described above, it is preferable that the fastener is disposed at a rear portion of the seat.
By doing so, the maintainability of the sheet can be improved.

In the above vehicle seat, it is preferable that the fastener is disposed behind the side frame.
By doing so, it becomes easy to attach the second end portion of the skin to the rear end portion of the side frame, and workability is improved.

In the above vehicle seat, it is preferable that the side frame has a plate-like frame including a flat side plate, and the rear end portion is bent inward of the seat.
By doing so, when the airbag is activated, the rupture portion of the skin is easily cleaved from side to side.

According to the present invention, even when the skin fastener is open, the airbag can be inflated from the broken portion provided in the seat.
According to the present invention, the workability of the work of assembling the skin to the side frame can be improved.
According to the present invention, the stability of attachment of the skin to the side frame can be improved.
According to the present invention, the maintainability of the sheet can be improved.
According to the present invention, when the airbag is activated, the rupture portion of the epidermis is easily cleaved from side to side.

It is a perspective view of a vehicle seat. It is a perspective view of a seat back frame. It is an outer side view of the left side frame. It is an inner side view of the left side frame. It is VV sectional drawing of FIG. It is a figure which shows the state which opened the fastener of the seat back. It is the elements on larger scale of the 2nd edge part of a side part skin. It is VIII-VIII sectional drawing of FIG.

Hereinafter, a vehicle seat S as a vehicle seat according to an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to FIGS. 1 to 8.
The embodiment described below is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. That is, the shape, dimensions, arrangement, and the like of the members described below can be changed and improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.

  In the following description, the “front-rear direction” means the front-rear direction when viewed from the seated person of the vehicle seat and is the direction that coincides with the traveling direction of the vehicle. The “seat width direction” means the lateral width direction of the vehicle seat and coincides with the left-right direction when viewed from the seated person of the vehicle seat. Further, the “height direction” means the height direction of the vehicle seat, and coincides with the vertical direction when the vehicle seat is viewed from the front.

First, the outline of each of FIGS. 1 to 8 will be described.
FIG. 1 is a perspective view of a vehicle seat S. FIG.
FIG. 2 is a perspective view of the seat back frame 10.
FIG. 3 is an outer side view of the left side frame 13.
FIG. 4 is an inner side view of the left side frame 13.
FIG. 5 is a VV cross-sectional view of FIG.
FIG. 6 is a view showing a state in which the fastener 52 of the seat back S1 is opened.
FIG. 7 is a partially enlarged view of the second end portion 58 of the side skin 50A.
8 is a cross-sectional view taken along the line VIII-VIII in FIG.

  As shown in FIG. 1, the vehicle seat S includes a seat back S <b> 1 serving as a backrest portion, a seat cushion S <b> 2 serving as a seating portion, and a headrest S <b> 3 arranged on the upper portion of the seat back S <b> 1 and supporting a passenger's head. .

The seat back S1 is configured by covering the seat back frame 10 serving as a skeleton shown in FIG. 2 with a seat pad 40 and further covering the seat pad 40 with a skin 50.
And the airbag module 20 is provided inside the left side part of seat back S1. Specifically, as shown in FIG. 5, the airbag module 20 includes a seat pad 40 (first pad portion 40 </ b> A) and a side frame 13 (a connecting portion between the pipe frame 11 and the plate frame 12). Arranged.

[Description of Airbag Module 20]
The airbag module 20 is a device that protects an occupant by absorbing an impact at the time of a vehicle collision. The airbag module 20 may be a caseless airbag module without a module case, or may have a module case, and is not particularly limited.

In the present embodiment, the airbag module 20 includes an airbag 21 and an inflator 22, and both the airbag 21 and the inflator 22 are held by being wrapped in a wrap material.
Here, the inflator 22 is a device that generates gas in response to an input signal from a harness (not shown). Specifically, when a sensor provided in the vehicle detects a collision, an operation signal is input to the inflator 22 via the harness, whereby the inflator 22 generates gas and injects the gas into the airbag 21. To do. Thus, the airbag 21 is inflated and deployed when the vehicle collides.

[Description of Seat Back Frame 10]
Next, the configuration of the seat back frame 10 to which the airbag module 20 is attached will be described. The seat back frame 10 is a skeleton portion of the seat back S1 portion of the seat frame forming the skeleton of the vehicle seat S. That is, the seat back frame 10 is a part of the seat frame.

  As shown in FIG. 2, the seat back frame 10 includes an inverted U-shaped pipe frame 11, a pair of plate frames 12 that respectively form end portions in the seat width direction, and a lower end portion of the pair of plate frames 12. And a lower frame 15 installed on the frame.

  The upper part of the pipe frame 11 constitutes an upper frame 11A of the seat back frame 10. Two headrest holders 16 are formed on the upper frame 11A. The headrest S3 is attached to the headrest holder 16.

The side part 11B of the pipe frame 11 and the upper end part of the plate-like frame 12 are arranged so as to overlap each other in the vertical direction, and the side part 11B of the pipe frame 11 and the upper end part of the plate-like frame 12 are joined by welding. ing.
In the present embodiment, the side portion of the seat back frame 10 constituted by the side portion 11 </ b> B of the pipe frame 11 and the plate frame 12 is referred to as a side frame 13.

  The seat back frame 10 is provided with a cross member frame 14 for laying the upper part of the pipe frame 11. Here, the “upper part of the pipe frame 11” is defined as an upper part of the pipe frame 11 than the plate frame 12. In other words, the “upper part of the pipe frame 11” is a part of the pipe frame 11 that is bent toward the upper frame 11A.

  The airbag module 20 is attached to the left side frame 13 via a support member 30. Hereinafter, the support member 30 will be described.

[Description of Support Member 30]
The support member 30 supports the occupant in the seat width direction from an external force applied to the vehicle. Further, the support member 30 supports the airbag module 20 and also functions to guide the deployment direction of the airbag 21 of the airbag module 20. That is, in this embodiment, the support member 30 functions as a webbing instead of the webbing that is generally provided for guiding the airbag deployment direction.
The support member 30 may be formed of a resin such as TPO (Thermo Polyolefin) or TPU (Thermoplastic Polyurethane).
Hereinafter, the details of the configuration of the support member 30 will be described.

  As shown in FIGS. 2 to 5 and 8, the support member 30 includes an outer plate 31, an upper wall portion 32, a rear wall portion 33, a front extension portion 34, an inner plate 35, and a rib 39.

The outer plate 31 is disposed on the outer side of the side frame 13 in the seat width direction. Specifically, the outer plate 31 is attached to the side frame 13 while facing the side plate 12A of the plate frame 12.
As shown in FIGS. 2 and 3, a first hole 31 </ b> A and a second hole 31 </ b> B are formed in the lower portion of the outer plate 31. The first hole 31 </ b> A and the second hole 31 </ b> B are provided at positions facing the mounting holes of the airbag module 20 formed in the plate frame 12.

As shown in FIG. 2, stud bolts 22A extending from the inflator 22 of the airbag module 20 are inserted through the first hole 31A and the second hole 31B, respectively.
Then, the stud bolt 22A of the airbag module 20 is passed through the first hole 31A and the second hole 31B of the support member 30 and the mounting hole of the plate frame 12, and is fixed using a fastener such as a nut. . As a result, the airbag module 20 is fixed to the side frame 13 in a state where the airbag module 20 faces the outer plate 31.

The upper wall portion 32 is a flange portion provided at the upper end portion of the outer plate 31. The upper wall portion 32 extends from the upper end of the outer plate 31 toward the seat outer side.
The upper wall portion 32 regulates the position of the upper portion of the airbag module 20. Thereby, the position shift of the airbag module 20 to the upper side can be prevented.

The rear wall portion 33 is a flange portion provided at the rear end portion of the outer plate 31. The rear wall 33 extends from the rear end of the outer plate 31 toward the seat outer side. The rear wall portion 33 and the upper wall portion 32 are connected at the corner on the upper rear side of the outer plate 31.
The rear wall portion 33 is disposed behind the airbag module 20 and regulates the position of the rear portion of the airbag module 20. Thereby, the support member 30 can prevent the position shift to the rear part of the airbag module 20.
Further, by providing the rear wall portion 33, the shape of the rear portion of the vehicle seat S can be defined.

The front extending portion 34 is a portion extending forward from the connecting portion between the outer side plate 31 and the inner side plate 35. The front extending portion 34 has a portion bent forward from the portion extending to the outside of the seat.
Here, as shown in FIG. 5, the front extending portion 34 extends toward the fragile portion 41 provided in the seat pad 40, and at least a part of the fragile portion 41 is disposed. Specifically, the front end portion of the front extension portion 34 is arranged in a state where it is inserted into the weak portion 41 of the seat pad 40.

As shown in FIGS. 5 and 8, the seat pad 40 includes a first pad portion 40A and a second pad portion 40B.
The first pad portion 40A is disposed on the outer side in the sheet width direction, and the second pad portion 40B is disposed on the front portion of the sheet. The first pad portion 40A and the second pad portion 40B are connected to each other at the front end of the seat, that is, at the fragile portion 41.

The fragile portion 41 is a portion that is formed in the vertical direction and is weaker than the first pad portion 40A and the second pad portion 40B.
For example, the fragile portion 41 is configured by forming one or more slits in the connection portion between the first pad portion 40A and the second pad portion 40B.
Further, the fragile portion 41 is not limited to the slit, and may be configured by forming a connection portion between the first pad portion 40A and the second pad portion 40B with a member having a weaker strength than the surroundings.
And the fracture | rupture part 51 of the skin 50 is provided ahead of the weak part 41. FIG. That is, the fragile portion 41 is provided close to the fracture portion 51 of the skin 50.

The skin 50 is a member that covers the seat pad 40, and is, for example, leather or cloth. The skin 50 has a side skin 50A that covers the first pad portion 40A and a front skin 50B that covers the second pad portion 40B.
Here, the side skin 50 </ b> A and the front skin 50 </ b> B are stitched together at the break portion 51. The breaking portion 51 is formed in the vertical direction and serves as an outlet when the airbag 21 of the airbag module 20 is inflated from the inside of the seat.

Then, when a certain impact or more is applied to the vehicle, the inflator 22 of the airbag module 20 is operated to inject gas into the airbag 21 to rapidly inflate the airbag 21. Thereby, the airbag 21 presses the support member 30 inside the seat.
At this time, as shown in FIG. 8, the outer plate 31 of the support member 30 is in contact with and supported by the side plate 12A of the plate-like frame 12, and therefore the position of the outer plate 31 is not substantially changed.

On the other hand, the front extending portion 34 of the support member 30 is pressed against the inner side of the seat by the airbag 21 and acts to spread the weak portion 41 of the seat pad 40.
Then, the front extending portion 34 spreads the fragile portion 41, so that the airbag 21 is deployed from the fragile portion 41 toward the rupture portion 51, and the fragile portion 41 and the rupture portion 51 are broken while being expanded. Swells outside the seat.
In this manner, the support member 30 can guide the deployment direction of the airbag 21 of the airbag module 20 by providing the front extending portion 34. Note that the above-described deployment direction is a direction from the airbag 21 before inflation toward the fracture portion 51.

Here, the configuration of the skin 50 of the seat back S1 will be described with reference to FIGS.
As shown in FIGS. 6 and 7, the skin 50 of the seat back S <b> 1 includes a side skin 50 </ b> A, a front skin 50 </ b> B, and a rear skin 50 </ b> C.
The side skin 50A is a skin that covers the first pad portion 40A. The side skin 50A corresponds to the first skin part.
The front skin 50B is a skin that covers the second pad portion 40B.
The rear skin 50C is a skin constituting the rear surface of the seat back S1. The rear skin 50C corresponds to the second skin.

  As shown in FIG. 8, the first end portion 57 of the side skin 50 </ b> A is stitched with the end portion of the front skin 50 </ b> B to form a fracture portion 51. The first end 57 is the front end of the side skin 50A.

In addition, a fastener 52 is formed at a connection portion between the side skin 50A and the rear skin 50C. That is, the fastener 52 is disposed at the rear portion of the seat. Specifically, the fastener 52 is disposed behind the side frame 13.
As shown in FIG. 6, the fastener 52 includes a first fastener element 52A, a second fastener element 52B, and a slider 52C.
The slider 52C is attached to the first fastener element 52A and the second fastener element 52B. When the slider 52C slides, the first fastener element 52A and the second fastener element 52B are engaged, and the engagement is released. Is done. That is, by operating the slider 52C, the first fastener element 52A and the second fastener element 52B are connected or disconnected.

As shown in FIGS. 6 and 8, a first fastener element 52A is formed on the side skin 50A, and a second fastener element 52B is formed on the rear skin 50C. Then, by sliding the slider 52C, the first fastener element 52A and the second fastener element 52B are separated or connected.
That is, the side skin 50A and the rear skin 50C can be separated by the fastener 52.

As shown in FIGS. 6 and 8, the side skin 50 </ b> A is provided with an inner extension 53 that extends inward from the fastener 52, and the end of the inner extension 53 is the second end. Part 58. In other words, the second end 58 is the rear end of the side skin 50A.
The fastener 52 (first fastener element 52A) is provided between the first end 57 and the second end 58 in the side skin 50A.

  Here, as shown in FIG. 7, a hook attachment portion 54 is provided at the second end portion 58 of the side skin 50 </ b> A, and a hook 55 is attached to the hook attachment portion 54. Specifically, the hook 55 is attached to the hook attachment portion 54 by stitching a resin hook 55 to the hook attachment portion 54 at the stitching portion 56.

  The hook 55 is a J hook, and as shown in FIG. 8, the hook 55 is locked to the rear end portion 12 </ b> C of the plate-like frame 12. The second end 58 is provided with a plurality of hooks 55. Thereby, the attachment of the second end portion 58 to the rear end portion 12C of the plate-like frame 12 becomes strong.

Thus, the side skin 50A is fixed by sewing the first end 57 with the front skin 50B, and the second end 58 is behind the plate-like frame 12 regardless of the open / closed state of the fastener 52. It is fixed by being locked to the end 12C.
Therefore, even when the fastener 52 is open, when the inflator 22 is operated and the airbag 21 is inflated, the rupture portion 51 of the skin 50 is applied with a pulling force to the left and right, and thus can be torn. That is, even when the fastener 52 is open, the airbag 21 can be inflated from the fractured portion 51 of the skin 50 to the outside of the seat.

  Next, the inner plate 35 of the support member 30 will be described. The inner plate 35 is a plate-like portion disposed on the inner side in the sheet width direction of the support member 30. As shown in FIG. 8, the inner plate 35 has a step structure having steps in the front and rear, and has a shape in which a gap between the inner plate 35 and the outer plate 31 is widened in the rear with respect to the front.

As shown in FIGS. 4 and 5, two fixed portions 36 are provided at the rear end of the inner plate 35.
The fixing part 36 is composed of a screw through hole and a thick part around the screw through hole. The screw through hole is a hole through which a fastener 37 such as a screw is inserted. Thus, the rigidity of the fixing part 36 is improved by providing the fixing part 36 with a thick part around the screw through hole.

And as FIG. 5 shows, the connection part of the pipe frame 11 and the plate-shaped flame | frame 12 is distribute | arranged between the inner side board 35 and the outer side board 31. As shown in FIG. In the pipe frame 11, for example, a screw mounting hole is provided at a position facing the fixing portion 36, and the fixing portion 36 and the pipe frame 11 are fastened by a fastener 37. In this way, the support member 30 is fixed to the connecting portion between the pipe frame 11 and the plate frame 12.
In addition, the fixing | fixed part 36 may be joined with respect to the pipe frame 11 not only by the fixing using a fastener but by welding.

As described above, the upper portion of the support member 30 is fixed to the pipe frame 11 by the inner plate 35 disposed inside the seat.
As shown in FIG. 4, the lower portion of the support member 30 is locked to the front end portion 12 </ b> B of the plate frame 12 by a locking portion 38 provided at the lower portion of the inner plate 35. The locking portion 38 is provided below the fixed portion 36.
Specifically, in the present embodiment, a plurality of J hook-shaped locking portions 38 are formed in the lower portion of the inner plate 35. In addition, the shape of the latching | locking part 38 is not restricted to the shape shown in figure, It is good also as one J hook extended up and down.
The locking portion 38 is locked to the front end portion 12B of the plate-like frame 12, but may be locked to the rear end portion 12C of the plate-like frame 12.
Further, the support member 30 may include a locking portion 38 that is locked to the front end portion 12B of the plate frame 12 and a locking portion 38 that is locked to the rear end portion 12C of the plate frame 12. Good.

  On the other hand, in the support member 30, the outer side plate 31 disposed on the outer side of the seat is in contact with the side plate 12A of the plate-like frame 12, but is not fastened, and is a free end.

Thus, by fixing the inside of the support member 30 and setting the outside as a free end, when a load from the outside is applied to the support member 30, the fixed portion 36 and the locking portion 38 are fixed ends. Thus, the movement and deformation of the outer plate 31 can be promoted, and the load can be released.
That is, the inner side of the support member 30 is a fixed end, and the outer side is a free end, thereby improving the shock absorption from the outside. On the other hand, with respect to the load from the inside of the seat, the passenger can be supported by the inside of the seat being a fixed end.
Further, as described above, in the present embodiment, when the airbag 21 of the airbag module 20 is inflated, the forward extension is performed with the locking portion 38 locked to the front end portion 12B of the plate frame 12 as a fulcrum. The part 34 can spread the weak part 41 as an action point. Thereby, the deployment direction of the airbag 21 can be guided so that the airbag 21 bulges outside the seat while the fragile portion 41 and the fracture portion 51 are cleaved.

In the support member 30, one or more ribs 39 are provided between the inner plate 35 and the outer plate 31.
As shown in FIG. 8, the rib 39 extends in the front-rear direction of the seat and connects the inner plate 35 and the outer plate 31. A plurality of ribs 39 may be provided. In such a case, the ribs 39 may be arranged at substantially equal intervals from the vicinity of the upper end to the vicinity of the lower end between the inner plate 35 and the outer plate 31.
The length of the rib 39 in the front-rear direction of the seat is shorter than that of the inner plate 35 and the outer plate 31, and a space is formed between the inner plate 35 and the outer plate 31 at the rear of the seat with respect to the rib 39. Is done. And the connection part of the pipe frame 11 and the plate-shaped frame 12 will be arrange | positioned in this space.
As shown in FIG. 5, at least a part of the rib 39 and the plate frame 12 may be in contact with each other.

  Thus, by providing the rib 39, the rigidity of the inner side plate 35 and the outer side plate 31 can be increased, the occupant's holdability can be improved, and the impact absorption can be improved. The shape of the rib 39 is not limited to the shape shown in the figure, and may be, for example, a flat plate extending up and down.

[Other Embodiments]
The present invention is not limited to the above embodiment.
For example, a wadding may be provided in place of the support member 30. In this case, for example, the bundling is attached as follows.
First, an attachment member such as a clip is provided on the front end portion 12B of the plate-like frame 12, and an inner buff is attached to the attachment member. In addition, an attachment member such as a clip is provided at the rear end portion 12C of the plate-like frame 12, and an outer force cloth is attached to the attachment member. Then, the inner power cloth and the outer power cloth are sewn together with the side skin 50A and the front skin 50B at the breaking portion 51.

  Further, in the support member 30, the upper wall portion 32 and the rear wall portion 33 may not be provided.

  In the above-described embodiment, the vehicle seat is described as an example of the vehicle seat. However, the present invention is also applicable to an airplane seat, a ship seat, and the like.

  In the above-described embodiment, the configuration in which the support member 30 and the airbag module 20 are attached to the left side of the vehicle seat S has been described. However, the support member 30 and the airbag are attached to both the right side and the left and right sides of the vehicle seat S. The module 20 may be attached.

[Effects produced by the vehicle seat S]
According to the vehicle seat S, even if the airbag module 20 is activated when the fastener 52 is open, tension is applied to the side skin 50A (first skin), so that the breaking portion 51 can be broken. .
Thereby, even when the fastener 52 of the skin 50 is open, the airbag 21 can be inflated from the break portion 51 provided in the vehicle seat S.

In the vehicle seat S, the second end 58 of the side skin 50 </ b> A has a hook 55, and the hook 55 is locked to the rear end 12 </ b> C of the side frame 13.
By doing so, the workability of the work of assembling the skin 50 to the side frame 13 can be improved.

In the vehicle seat S, the second end portion 58 has a plurality of hooks 55.
By carrying out like this, the stability of attachment to the side frame 13 of the skin 50 can be improved.

In the vehicle seat S, the hook 55 is a J hook.
By doing so, the second end portion 58 of the skin 50 can be easily attached to the rear end portion 12C of the side frame 13, and workability is improved.

In the vehicle seat S, the fastener 52 is disposed at the rear of the seat.
By doing so, the maintainability of the vehicle seat S can be improved.

In the vehicle seat S, the fastener 52 is disposed behind the side frame 13.
By doing so, the second end portion 58 of the skin 50 can be easily attached to the rear end portion 12C of the side frame 13, and workability is improved.

In the vehicle seat S, the side frame 13 includes a plate-like frame 12 having a flat side plate, and the rear end portion 12C is bent inward of the seat.
By doing so, when the airbag module 20 is actuated, the fracture portion 51 of the skin 50 is easily cleaved to the left and right.

S Vehicle seat (vehicle seat)
S1 Seat back S2 Seat cushion S3 Headrest 10 Seat back frame (seat frame)
DESCRIPTION OF SYMBOLS 11 Pipe frame 11A Upper frame 11B Side part 12 Plate-like frame 12A Side plate 12B Front end part 12C Rear end part 13 Side frame 14 Cross member frame 15 Lower frame 16 Headrest holder 20 Air bag module 21 Air bag 22 Inflator 22A Stud bolt 30 Support member 31 outer plate 31A first hole 31B second hole 32 upper wall portion 33 rear wall portion 34 forward extension portion 35 inner plate 36 fixing portion 37 fastener 38 locking portion 39 rib 40 seat pad 40A first pad portion 40B second Pad part 41 Weak part 50 Epidermis 50A Side epidermis (first epidermis)
50B Front skin 50C Rear skin (second skin)
51 Breaking portion 52 Fastener 52A First fastener element 52B Second fastener element 52C Slider 53 Inner extension portion 54 Hook attachment portion 55 Hook 56 Sewing portion 57 First end portion 58 Second end portion

Claims (7)

A side frame that forms the side of the seat frame;
A seat pad arranged outside the side frame;
An epidermis covering the seat pad;
An airbag module, and an airbag module disposed between the seat pad and the side frame,
The epidermis is
A first skin part and a second skin part;
A fastener that is detachable from the first skin part and the second skin part;
The first skin part is
A first end that becomes a break when the airbag is deployed;
A second end locked to the side frame,
The vehicle seat according to claim 1, wherein the fastener is provided between the first end and the second end. The second end has a hook;
The vehicle seat according to claim 1, wherein the hook is locked to a rear end portion of the side frame.   The vehicle seat according to claim 2, wherein the second end portion has a plurality of the hooks.   The vehicle seat according to claim 2, wherein the hook is a J hook.   The vehicle seat according to claim 1, wherein the fastener is disposed at a rear portion of the seat.   The vehicle seat according to claim 1, wherein the fastener is disposed behind the side frame. The side frame has a plate-like frame having a flat side plate,
The vehicle seat according to claim 2, wherein the rear end portion is bent inward of the seat.

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