Vehicle seats

Abstract

To provide a vehicle seat which inhibits enlargement of a seat cushion while being able to properly absorb an impact caused to a seated person when an impact, such as a collision, occurs.SOLUTION: A vehicle seat S includes a seat cushion S1, and the seat cushion S1 includes: a seat cushion frame F1; a seat cushion pad S1 placed on the seat cushion frame F1; an impact absorption member 20 provided below a seat cushion pad S11; and an air bag 30 housed in a storage recessed part 21 formed at the impact absorption member 20. The impact absorption member 20 is supported from below by a pan frame 12 serving as a support member. The impact absorption member 20 is configured to deform more easily than the pan frame 12.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat capable of absorbing an impact applied to a seated person when an impact such as a collision occurs.

Background Art

[0002] When a running vehicle collides head-on, a submarine phenomenon may occur in which the body of a seated person (occupant) sitting on the seat slides down forward and downward on the surface of the seat while being restrained by the seat belt. As a countermeasure for suppressing the submarine phenomenon, for example, as described in Patent Document 1, a vehicle seat provided with an occupant protection device in which an airbag is provided between a seat cushion and a base plate, and an impact absorbing member is interposed between the airbag and the seat cushion is known.

[0003] In the vehicle seat of Patent Document 1, when the vehicle collides, the airbag expands to push up the seat cushion, compresses and hardens the seat cushion, suppresses the submarine phenomenon of the occupant, and even when the occupant is strongly pressed against the front part of the seat cushion, the impact absorbing material plastically deforms and the impact is absorbed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the vehicle seat described in Patent Document 1, since the airbag and the impact absorbing member are arranged overlapping in the vertical direction, the size of the seat cushion in the vertical direction has become large.

[0006] This invention has been made in view of the above-mentioned problems, and its purpose is to provide a vehicle seat that appropriately absorbs the impact on the occupant when an impact such as a collision occurs, while suppressing the enlargement of the seat cushion. [Means for solving the problem]

[0007] The aforementioned problem is solved by the vehicle seat of the present invention, which is a vehicle seat equipped with a seat cushion, wherein the seat cushion comprises a seat cushion frame, a seat cushion pad placed on the seat cushion frame, and a provision below the seat cushion pad. It has a hollow section inside and is configured to collapse and absorb shock when a certain load value is exceeded. Shock-absorbing member, and the shock-absorbing member Formed to be recessed from the surface Airbag housed in a storage recess A module inflator, This will resolve the issue.

[0008] In the vehicle seat of the present invention configured as described above, the airbag is housed in a recess of the shock-absorbing member, which prevents the size of the seat cushion from increasing in the vertical direction. ,workman The bag is protected by being housed in a recessed storage area, and assembly to the shock-absorbing member is also improved.

[0009] Furthermore, in the above configuration, It has a sinking suppression member that suppresses the sinking of the seated person, The sinking suppression member is positioned below the inflator. good 。

[0010] Furthermore, in the above configuration, The impact absorbing member has a rear region located behind the storage recess and a front region located in front of the storage recess, and in the vertical direction, the maximum thickness of the front region is greater than the maximum thickness of the rear region. good 。

[0011] Furthermore, in the above configuration, the storage recess of the shock-absorbing member is provided with a side wall in the width direction of the vehicle seat, and the side wall upper end teeth, Located at a higher position than the aforementioned inflator good 。

[0012] Furthermore, in the above configuration, The portion of the impact absorbing member having the maximum thickness in the rear region located behind the storage recess overlaps with the sinking suppression member in the vertical direction. good 。

[0013] Also, in the above configuration, The shock-absorbing member is supported from below by a support member, the front end of the shock-absorbing member is positioned in front of the front end of the support member, and the rear end of the shock-absorbing member is positioned behind the rear end of the support member. is preferable 。

[0014] Also, in the above configuration, The airbag module is fastened together with the impact absorbing member and the support member. is preferable 。

[0015] Also, in the above configuration, The front end of the support member is received in the receiving recess formed on the back surface of the shock-absorbing member. is preferable 。

[0016] Also, In the above configuration, the bottom surface of the receiving recess is preferably positioned above the upper end of the inflator.

[0017] Also, in the above configuration, The maximum thickness of the inflator in the vertical direction is smaller than the maximum thickness of the side wall in the vertical direction. is preferable 。

Advantages of the Invention

[0018] According to the vehicle seat of the present invention, since the airbag is stored in the storage recess of the shock absorption member, it is possible to suppress an increase in the size of the seat cushion in the vertical direction. Also ,workman the airbag is protected by being housed in the storage recess, and the assemblability with respect to the shock absorption member is also improved 。

Brief Description of the Drawings

[0019] [Figure 1] It is an external view of a vehicle seat according to a first embodiment of the present invention. [Figure 2] It is an external view of a seat frame included in a vehicle seat according to a first embodiment of the present invention. [Figure 3] It is an external view of a shock absorption member and an airbag module included in a vehicle seat according to a first embodiment of the present invention. [Figure 4] It is a sectional view taken along line A-A of FIG. 1, and is an explanatory view showing the structure around a shock absorption member included in a vehicle seat according to a first embodiment of the present invention. [Figure 5] It is a sectional view taken along line B-B of FIG. 1, and is an explanatory view showing the structure around a shock absorption member included in a vehicle seat according to a first embodiment of the present invention. [Figure 6] This is a schematic diagram corresponding to the BB cross-section in Figure 1, illustrating the deformation of the impact-absorbing member when the airbag deploys. [Figure 7] Figure 1, AA cross-sectional view, is an explanatory diagram showing the structure surrounding the impact-absorbing member of a vehicle seat according to the first embodiment of the present invention. [Figure 8] This is an external view of a vehicle seat according to a second embodiment of the present invention. [Figure 9] This is a schematic diagram showing a seat cushion frame and shock-absorbing member in a vehicle seat according to a second embodiment of the present invention. [Figure 10] This is an external view of an impact-absorbing member provided in a vehicle seat according to a second embodiment of the present invention. [Figure 11] This is an external view of an impact-absorbing member provided in a vehicle seat according to a second embodiment of the present invention. [Figure 12] This is a schematic cross-sectional view of a modified shock-absorbing member. [Figure 13] This is a schematic cross-sectional view showing the positional relationship between the shock-absorbing member and the seat cushion pad in a modified example. [Modes for carrying out the invention]

[0020] Hereinafter, with reference to Figures 1 to 13, a vehicle seat according to the first and second embodiments of the present invention (hereinafter referred to as "this embodiment") will be described. As an example of a vehicle seat according to this embodiment, a vehicle seat mounted on a vehicle will be used for the description, but it is not limited to a vehicle seat mounted on a ground-running vehicle with wheels such as an automobile or a train, but may also be a seat mounted on an aircraft or ship that moves on surfaces other than the ground.

[0021] The embodiments described below are merely examples to facilitate understanding of the present invention and do not limit it. In other words, the shape, dimensions, arrangement, etc., of the components described below can be changed or improved without departing from the spirit of the present invention, and of course, equivalents thereof are included in the present invention.

[0022] In this specification, the terms indicating direction are defined as shown in Figure 1. Specifically, in the following descriptions, "front-to-back direction" refers to the front-to-back direction as viewed from the perspective of a person seated in a vehicle seat, and is the direction that coincides with the direction of travel of the vehicle. "Seat width direction" refers to the width direction of the vehicle seat, and is the same as the left-to-right direction as viewed from the perspective of a person seated in a vehicle seat. "Up-down direction" refers to the height direction of the vehicle seat, and is the same as the up-and-down direction as viewed from the front of the vehicle seat.

[0023] [1. Configuration of the vehicle seat S] The vehicle seat S according to this embodiment has the appearance shown in Figure 1. In Figure 1, for illustrative purposes, a portion of the vehicle seat S (specifically, the front corner of the seat cushion S1) is shown with the trim cover S12 removed.

[0024] The vehicle seat S mainly consists of a seat cushion S1 which is the seating portion that supports the occupant's buttocks, a seat back S2 which is the backrest portion that supports the occupant's back, and a headrest S3 which is positioned above the seat back S2 and supports the occupant's head. As shown in Figure 2, the vehicle seat S has a seat frame F as its framework, which mainly consists of a seat cushion frame F1 and a seat back frame F2.

[0025] The seat cushion S1 is constructed by placing a seat cushion pad S11 on a seat cushion frame F1, which serves as the frame, and then covering the seat cushion pad S11 with a trim cover S12. The seat back S2 is constructed by placing an unillustrated cushion pad on a seat back frame F2 and covering it with a trim cover S12. The headrest S3 is formed by arranging an unillustrated pad material on an unillustrated core material and covering it with a trim cover S12. The seat cushion pad S11 of the seat cushion S1 and the seat back pad of the seat back S2 are urethane base materials molded by foam molding using urethane foam material.

[0026] (Seat cushion frame F1) As shown in Figure 2, the seat cushion frame F1 has a pair of side frames 11 spaced apart on the left and right, a pan frame 12 connecting the front ends of the pair of side frames 11, and a connecting pipe 13 connecting the rear ends of the pair of side frames 11, and is formed into a frame shape by being joined together by welding or the like. The side frames 11 and pan frame 12 are formed by pressing metal plates, and the connecting pipe 13 is formed from a metal pipe.

[0027] As shown in Figure 2, the seat cushion frame F1 of this embodiment is provided with a submarine pipe 14 to suppress the submarine phenomenon, in which the body of a occupant seated on the vehicle seat S slides forward and downward when the vehicle is involved in a frontal collision. The submarine pipe 14 is provided between the left and right side frames 11.

[0028] Furthermore, multiple seat springs 15, which serve as pressure-receiving members, are installed between the connecting pipe 13 and the submarine pipe 14 of the seat cushion frame F1. Specifically, three seat springs 15 are arranged in a line in the seat width direction, with the front end of each seat spring 15 hooked onto the submarine pipe 14 and the rear end hooked onto the connecting pipe 13, thereby being installed in the front-to-back direction of the seat (in other words, in a direction perpendicular to the seat width direction).

[0029] [2. Seat cushion of the first embodiment] Referring to Figures 2 to 7, the configuration of the seat cushion S1 of the vehicle seat S according to the first embodiment of the present invention will be described in detail. The seat cushion S1 according to this embodiment includes a seat cushion frame F1, a seat cushion pad S11 placed on the seat cushion frame F1, an impact absorbing member 20 provided below the seat cushion pad S11, and an airbag module 30.

[0030] (Impact absorbing member 20) As shown in Figures 3 to 5, the impact absorbing member 20 is provided below the seat cushion pad S11. The impact absorbing member 20 is provided with a storage recess 21 and a support recess 22 that are recessed downwards from the top surface. The inflator 31 and airbag 32 of the airbag module 30, which will be described later, are housed in the storage recess 21 and the support recess 22.

[0031] The storage recess 21 includes a front wall 21a and a rear wall 21b that extend in the vertical direction and the seat width direction. The storage recess 21 also includes a bottom wall 21c that extends in the front-rear direction and the seat width direction. Furthermore, the storage recess 21 includes a pair of side walls 21d that are spaced apart in the seat width direction, and the side walls 21d extend in the front-rear direction and the vertical direction.

[0032] The shock-absorbing member 20 has an upwardly recessed engagement recess 23a formed at its front end 23, and a fastening member F attached to the trim front end S12a of the trim cover S12 engages with this engagement recess 23a (Figure 4). The shock-absorbing member 20 also has an upwardly recessed side end recess 24a formed at the side end 24 that forms the side surface, and a fastening member F attached to the trim side end S12b of the trim cover S12 engages with this side end recess 24a (Figure 5).

[0033] (Airbag module 30) As shown in Figures 3 to 5, an airbag module 30, which serves as an airbag device, is positioned in the storage recess 21 and support recess 22 of the impact absorbing member 20. The airbag module 30 consists of a caseless airbag module that does not have a module case. The airbag module 30 comprises an inflator 31 and an airbag 32.

[0034] The inflator 31 is cylindrical and is fixed to the shock-absorbing member 20 and the seat cushion frame F1 by bolts 31a and nuts 31b that extend downward from the outer circumference of the inflator 31 and corresponding to the bolts 31a.

[0035] More specifically, the bolt 31a penetrates the bottom wall 21c of the storage recess 21 formed in the shock-absorbing member 20 and the pan frame 12, which is part of the seat cushion frame F1, and is secured by attaching a nut 31b to its tip (Figures 4 and 5). The inflator 31 may also be secured to the shock-absorbing member 20 and the seat cushion frame F1 by inflator mounting members other than bolts.

[0036] The inflator 31 is a device that generates gas when it receives an activation signal from a sensor (not shown) that detects a vehicle collision, and injects the generated gas into the airbag 32 to inflate it so that it deploys. In this embodiment, the airbag module 30 is made up of a caseless unit, but it is not limited to this and may be configured with a module case.

[0037] The shock-absorbing member 20 is supported from below by the seat cushion frame F1. More specifically, the shock-absorbing member 20 is supported from below by the pan frame 12 below the seat cushion pad S11. The shock-absorbing member 20 is configured to be more easily deformed than the supporting member, the pan frame 12.

[0038] The shock-absorbing member 20 only needs to be configured to collapse and absorb shock when a certain load value is exceeded, for example, it may be a blow-molded resin product having a cavity inside. However, the shock-absorbing member 20 is not limited to a blow-molded product, and may also be a urethane molded product that has a higher hardness than the urethane pad seat cushion pad S11 and has a cavity that collapses and absorbs shock when a certain load value is exceeded.

[0039] As shown in Figure 4, in the front-rear direction of the sheet, the front end portion 12a of the pan frame 12 is received and positioned in the receiving recess 23b formed in front of the impact absorbing member 20. Also, as shown in Figure 5, in the width direction of the sheet, the side end portion 12b of the pan frame 12 is received and positioned in the side end recess 24a formed in the side end portion 24 of the impact absorbing member 20.

[0040] The inflator 31 and airbag 32 of the airbag module 30 are housed in a storage recess 21 and a support recess 22, which are recesses formed in the impact absorbing member 20. The inflator 31 is housed in the storage recess 21, and the portion of the airbag 32 that is positioned behind the inflator 31 rests on the support recess 22 (Figure 4).

[0041] As shown in Figure 4, in the vertical direction, the airbag module 30 is positioned between the recesses (storage recess 21 and support recess 22) of the impact absorbing member 20 located below and the lower surface S11a of the seat cushion pad S11 located above.

[0042] When a vehicle is involved in a frontal collision, the airbag 32, inflated by the gas ejected from the inflator 31, pushes the seat cushion pad S11 upward from its front end to a predetermined area closer to the center, preventing the occupant seated on the seat cushion S1 from moving forward. At this time, the occupant's buttocks or thighs are pressed firmly against the seat cushion pad S11, which has been pushed upward by the inflation of the airbag 32. If a pressure exceeding a predetermined value is applied to the impact absorbing member 20 located below the seat cushion pad S11 and the airbag 32, the impact absorbing member 20 plastically deforms to collapse, absorbing the impact. In this way, the load on the occupant during a frontal collision is reduced.

[0043] In the vehicle seat S of this embodiment, the airbag module 30 is housed in a storage recess 21 and a support recess 22 formed in the impact absorbing member 20, and the impact absorbing member 20 is configured to be more easily deformable than the pan frame 12 which acts as a support member. In the vehicle seat S configured in this way, the size of the seat cushion S1 in the vertical direction is suppressed because the airbag module 30 is housed in the recess of the impact absorbing member 20. In addition, because the impact absorbing member 20 is more easily deformable than the pan frame 12 which acts as a support member, the impact absorption effect is stably exerted. Furthermore, the airbag module 30 is protected by being housed in the recess, and the ease of assembling the airbag module 30 to the impact absorbing member 20 is also improved.

[0044] The storage recess 21 is equipped with a front wall 21a, which restricts the deployment direction of the airbag 32, making it possible to easily control the forward deployment of the airbag 32. Furthermore, the storage recess 21 is equipped with a rear wall 21b, which restricts the deployment direction of the airbag 32, making it possible to easily control the rearward deployment of the airbag 32. In addition, the storage recess 21 is equipped with a side wall 21d, which restricts the deployment direction of the airbag 32, making it possible to easily control the lateral deployment of the airbag 32.

[0045] As shown in Figure 6, the impact absorbing member 20 is configured to plastically deform when a load exceeding the deployment load of the airbag 32 is applied, thereby improving impact absorption while suppressing the impact on the deployment of the airbag 32.

[0046] The seat cushion pad S11 is covered by the trim cover S12, and the shock-absorbing member 20 is provided with engaging recesses 23a and side end recesses 24a (surface fixing portion) for fixing the ends of the trim cover S12 (trim front end S12a and trim side end S12b). In this configuration, the ends of the trim cover S12 are fixed to the surface fixing portion of the shock-absorbing member 20, which improves the degree of freedom in setting and improves ease of assembly.

[0047] Furthermore, the front trim end S12a of the trim cover S12 is provided with a fastening member F (skin attachment part) that is attached to the engaging recess 23a, and the trim side end S12b of the trim cover S12 is provided with a fastening member F (skin attachment part) that is attached to the side end recess 24a. The fastening members F are designed to detach from the engaging recess 23a and the side end recess 24a when the airbag 32 deploys (Figure 6). More specifically, when the airbag 32 deploys, the impact absorbing member 20 flexes and collapses, causing the trim cover S12 to rotate in a direction that detaches (specifically, outward in the seat width direction and upward in the seat vertical direction). With this configuration, the impact on the deployment of the airbag 32 is suppressed, and the degree of freedom in setting the deployment of the airbag 32 is improved.

[0048] The shock-absorbing member 20 is provided with a receiving recess 23b at its front end and a side-end recess 24a at its side end, which serve as frame mounting portions for attaching it to the pan frame 12 that constitutes the seat cushion frame F1. With this configuration, the shock-absorbing member 20 is fixed in a predetermined positional relationship with the seat cushion frame F1, making it easier to position the shock-absorbing member 20 in the seat cushion S1 and improving ease of assembly.

[0049] The shape and positional relationship of the impact absorbing member 20 are not limited. For example, as shown in Figure 7, the support recess 22 may be inclined toward the rear, and a portion of the upper surface of the impact absorbing member 20 may be housed in the pad recess S11b formed on the lower surface S11a of the seat cushion pad S11. In such a configuration, since the impact absorbing member 20 is housed in the pad recess S11b, compressive load on the seat cushion pad S11 is suppressed, and the ease of assembling the impact absorbing member 20 to the seat cushion pad S11 is improved. Furthermore, by positioning the airbag 32 on the inclined surface of the impact absorbing member 20, it becomes possible to suppress the forward movement of the occupant during a frontal collision.

[0050] Furthermore, the shock-absorbing member 20 is provided adjacent to the submarine pipe 14, which acts as a sinking suppression member to suppress the sinking of the seated person (Figure 7), making it easier to position the shock-absorbing member 20 and improving assembly. At this time, since the shock-absorbing member 20 is positioned directly above the submarine pipe 14 which extends in the seat width direction, the load during shock absorption is appropriately transmitted from the shock-absorbing member 20 to the submarine pipe 14.

[0051] [3. Vehicle seat of the second embodiment] The configuration of the vehicle seat S according to the second embodiment of the present invention will be described with reference to Figures 8 to 11. In the following description, points common to the first embodiment will be omitted, and the focus will be on the differences. As an example of a vehicle seat according to the second embodiment, a rear seat for a vehicle mounted on a vehicle will be used for the description, but it is not limited to a rear seat for a vehicle mounted on a wheeled ground vehicle such as an automobile or train, but may also be a front seat for a vehicle, a second-row seat in a three-row seat, or a seat mounted on an aircraft or ship that moves on surfaces other than the ground.

[0052] As shown in Figures 8 and 9, the shock-absorbing member 20 is positioned between a pair of side frames 11 in the seat width direction, avoiding the respective suspension portions T1 to T3 of the trim cover S12. Specifically, in a top view of the seat cushion S1, the shock-absorbing member 20 is positioned between the first suspension portion T1 (right suspension portion) and the second suspension portion T2 (left suspension portion) in the seat width direction, and in front of the third suspension portion T3 (rear suspension portion) in the seat front-rear direction. With this configuration, the influence of the respective suspension portions T1 to T3 is suppressed when the load during shock absorption is transmitted to the shock-absorbing member 20.

[0053] The lower surface 122 of the shock-absorbing member 120 is supported from below by a surface from the seat cushion frame F1 or the vehicle floor (support member). The support member that supports the shock-absorbing member 120 is not particularly limited, and examples include frame members such as the pan frame 12 and pressure-receiving members such as the seat spring 15.

[0054] As shown in Figure 10, the impact absorbing member 120 is provided with a first recess 123 as a storage recess between the upper surface 121 and the lower surface 122. The upper surface 121 of the impact absorbing member 120 has an inclined surface 121a that slopes downward as it approaches the rear. A second recess 124 that is recessed downward is formed on the inclined surface 121a. In the example shown in Figure 10, the second recess 124 is provided as two cylindrical recesses spaced apart in the sheet width direction.

[0055] The first recess 123 is recessed downward from the upper surface 121 and comprises a front wall 123a and a rear wall 123b extending in the vertical direction and the sheet width direction, a bottom wall 123c extending in the front-rear direction and the sheet width direction, and a pair of side walls 123d spaced apart in the sheet width direction. The side walls 123d extend in the front-rear direction and the vertical direction.

[0056] The number and shape of the second recesses 124 are not limited to the example shown in Figure 10. For example, as shown in Figure 11, the bottom surface of the second recess 124, which extends in the sheet width direction, may be provided as an oval-shaped recess.

[0057] The airbag module 30 is housed in the first recess 123 such that the inflator 31 extends in the seat width direction. A portion of the upper surface 121 of the impact absorbing member 120 is housed in the pad recess S11b formed in the lower surface S11a of the seat cushion pad S11. At this time, positioning the airbag 32 on the inclined surface 121a of the impact absorbing member 120 is preferable because it can suppress the forward movement of the occupant during a frontal collision.

[0058] [4. Variant] The present invention is not limited to the embodiments described above. Hereinafter, modified examples of the impact-absorbing member and seat cushion according to this embodiment will be described with reference to Figures 12 and 13. In the following description, points common to the above embodiments will be omitted, and the focus will be on the differences.

[0059] Figure 12 is a schematic cross-sectional view of a modified shock-absorbing member 220, and Figure 13 is a schematic cross-sectional view showing the positional relationship between the shock-absorbing member 220, the seat cushion pad S11, and the seat cushion frame F1.

[0060] The impact-absorbing member 220 is a blow-molded resin product, and by appropriately setting its external shape, the number and arrangement of recesses (cavities), it is possible to adjust the load value when it collapses and absorbs impact.

[0061] As shown in Figure 12, the impact absorbing member 220 includes a first recess 223a and a second recess 223b, which are provided so that the upper surface 221 is open, and a third recess 224a and a fourth recess 224b, which are provided so that the lower surface 222 is open. Here, the first recess 223a, the second recess 223b, the third recess 224a, and the fourth recess 224b have rounded corners.

[0062] The impact absorbing member 220 is positioned between a pair of side frames 11 in the seat width direction, similar to the impact absorbing member 120 in Figure 10. In other words, the first recess 223a and the third recess 224a are located in front of the occupant's seating area.

[0063] As shown in Figure 13, the lower surface 222 of the impact absorbing member 220 is supported from below by the seat cushion frame F1 and the vehicle floor (support member). The airbag module 30 is housed in the first recess 223a and the third recess 224a, with the inflator 31 extending in the seat width direction. A portion of the upper surface 221 of the impact absorbing member 220 is housed in the pad recess S11b formed in the lower surface S11a of the seat cushion pad S11.

[0064] The vehicle seat according to this embodiment has been described using a vehicle seat as an example. The seat cushion according to this embodiment is not particularly limited in terms of use, as long as it is a seat cushion for a seat where impact may occur to the occupant, and in particular, a seat cushion for a seat where sinking may occur for the occupant's lower back when an impact occurs. For example, the seat cushion of the present invention can also be used as a seat cushion for a vehicle seat used in vehicles other than cars. [Explanation of Symbols]

[0065] S Vehicle seats (seats for vehicles) S1 Seat Cushion S11 Seat Cushion Pad S11a bottom side S11b Pad recess S12 Trim Cover (Surface Material) S12a Trim front end S12b Trim side end F. Hooking member (skin attachment part) T1 First suspension section (right-side suspension section) T2 Second suspension section (left suspension section) T3 Third suspension section (rear suspension section) S2 Seatback S3 Headrest F Seat Frame F1 Seat Cushion Frame F2 Seat Back Frame 11 Side Frames 12. Pan frame (support member) 12a Front end of frame 12b Frame side end 13 Connecting pipes 14. Submarine pipe (submersion suppression member) 15. Seat spring (pressure receiving member, wire member) 20 Shock-absorbing material 21 Storage recess 21a Front wall 21b Back wall 21c bottom 21d side wall 22 Support recess 23 Front end 23a Engaging recess (skin fixing portion) 23b Receiving recess (frame mounting part) 24 Side edge 24a Side edge recess (skin fixing part, frame mounting part) 30 Airbag Modules 31 Inflator 31a Bolt 31b Nut 32 airbags 120 Impact absorbing material 121 Top surface 121a Slope 122 Bottom surface 123 First recess 123a Front 123b Rear 123c bottom 123d side 124 Second recess 220 Shock-absorbing material 221 Top surface 222 Bottom surface 223a First recess 223b Second recess 224a Third recess 224b Fourth recess

Claims

1. A vehicle seat equipped with a seat cushion, The aforementioned seat cushion comprises a seat cushion frame and A seat cushion pad placed on the aforementioned seat cushion frame, An impact absorbing member is provided below the aforementioned seat cushion pad, has a hollow portion inside, and is configured to collapse and absorb impact when a certain load value is exceeded. A vehicle seat characterized by having an inflator for an airbag module housed in a storage recess formed so as to be recessed from the surface of the impact-absorbing member.

2. Having a sinking suppression member that suppresses the sinking of the seated person, The vehicle seat according to claim 1, characterized in that the sinking suppression member is positioned below the inflator.

3. The shock-absorbing member has a rear region located behind the storage recess and a front region located in front of the storage recess, The vehicle seat according to claim 1, characterized in that, in the vertical direction, the maximum thickness in the front region is greater than the maximum thickness in the rear region.

4. The storage recess of the shock-absorbing member has side walls in the width direction of the vehicle seat, The vehicle seat according to claim 1, characterized in that the upper end of the side wall is located at a higher position than the inflator.

5. The vehicle seat according to claim 2, characterized in that the portion of the impact absorbing member having the maximum thickness in the rear region located behind the storage recess overlaps with the sinking suppression member in the vertical direction.

6. The shock-absorbing member is supported from below by a support member, The front end of the impact absorbing member is positioned forward of the front end of the support member. The seat for a vehicle according to claim 1, characterized in that the rear end of the impact-absorbing member is positioned behind the rear end of the support member.

7. The vehicle seat according to claim 6, characterized in that the airbag module is fastened together with the impact absorbing member and the support member.

8. The vehicle seat according to claim 6, characterized in that the front end of the support member is received in a receiving recess formed on the back surface of the shock-absorbing member.

9. The vehicle seat according to claim 8, characterized in that the bottom surface of the receiving recess is positioned above the upper end of the inflator.

10. The vehicle seat according to claim 4, characterized in that the maximum thickness of the inflator in the vertical direction is smaller than the maximum thickness of the side wall in the vertical direction.

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