JP2011020545A - Occupant protecting device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a passenger from obstructing the deployment of a side airbag, and does not need reinforcement considering the airbag reaction force of a member on which the side airbag is mounted, and can be provided regardless of the presence or absence of an armrest Providing passenger protection devices.
A vehicle occupant protection device 10 tilts toward a front of a vehicle from a recess 20 provided at an outer side and a lower portion of a seat back 1b in a vehicle width direction, and a storage position 30a stored in the recess 20. The seat back movable portion 30 is movable at a contact position 30c that contacts the upper surface of the cushion 1a, and the side airbag 41 is mounted on the seat back movable portion 30. The side airbag 41 is configured to be deployed upward from the seat back movable portion 30 at the contact position 30a.
[Selection] Figure 2

Description

  The present invention relates to a vehicle occupant protection device having a side airbag.

  Patent Document 1 discloses an armrest that is provided on the side of the seat in the vehicle width direction outside (door side) and is rotatable in the vehicle longitudinal direction with respect to the seat, and is mounted on the armrest from the armrest in the vehicle width direction (occupant side). An occupant protection device for a vehicle having a side airbag deployed on the vehicle is disclosed.

However, the conventional vehicle occupant protection device has the following problems.
(I) Since the side airbag is deployed from the armrest to the inner side in the vehicle width direction (occupant side), the occupant may interfere with the deployment of the side airbag.
(Ii) When the side airbag is deployed, the armrest is subjected to an airbag reaction force, so the armrest needs to be reinforced, and the armrest becomes heavy.
(Iii) Vehicles that can be provided with a vehicle occupant protection device are limited to vehicles equipped with armrests.

Japanese National Patent Publication No. 8-507267

  The object of the present invention is to prevent the occupant from obstructing the deployment of the side airbag, and does not require reinforcement considering the airbag reaction force of the member on which the side airbag is mounted, and is provided regardless of the presence or absence of the armrest An object of the present invention is to provide an occupant protection device for a vehicle.

The present invention for achieving the above object is as follows.
(1) The vehicular occupant protection device is provided on the upper surface of the seat cushion by tilting toward the front of the vehicle from a recess provided in the vehicle width direction outer side and lower portion of the seat back, and a storage position stored in the recess. And a seat back movable portion movable at a contact position to be in contact, and an airbag device including a side airbag mounted on the seat back movable portion.
When a side collision is detected or predicted in a state where the seat back movable portion is in the contact position, the side airbag is configured to deploy upward from the seat back movable portion.
(2) In the vehicle occupant protection device according to (1), the seat back movable portion is positioned so as to overlap with a seat belt device in a non-mounted state when viewed from the front-rear direction of the vehicle. When moving to the contact position side, the seat belt device in the non-mounted state is pushed forward of the vehicle.
(3) In the vehicle occupant protection device according to (1), the seat back movable portion includes a frame that is movably supported by the seat back, and an impact absorber that is disposed on both sides of the frame in the vehicle width direction. , And
The side airbag is disposed on the upper side of the frame when the seat back movable portion is in the contact position.

According to the vehicle occupant protection device of (1) above, the following effects can be obtained.
(A) When a side collision is detected or predicted in a state where the seat back movable portion is in the contact position, the side airbag is configured to deploy upward from the seat back movable portion. Compared with the case where the bag is deployed from the seat back movable portion to the vehicle width direction inner side (occupant side), it is possible to suppress the occupant from hindering the deployment of the side airbag.
(B) Since the seat back movable portion is in contact with the upper surface of the seat cushion when the seat back movable portion is in the contact position, the reaction force of the airbag when the side airbag is deployed upward from the seat back movable portion is increased. Can be received at the lower vehicle body. Therefore, the strength of the seat back movable part can be weakened compared to the case where the seat cushion and the vehicle body under the seat cushion receive no airbag reaction force only by the seat back movable part. The seat back movable part need not be reinforced.
(C) With this structure, the armrest that has been necessary in the past is not required, and therefore a vehicle occupant protection device can be provided regardless of the presence or absence of the armrest.

According to the vehicle occupant protection device of (2) above, the following effects can be obtained.
When the seat back movable part is viewed from the front and rear direction of the vehicle, it is in a positional relationship overlapping with the non-mounted seat belt device, and the non-mounted seat belt device is moved forward from the storage position to the contact position side. Therefore, the occupant can be encouraged to install the seat belt device as compared with the case where the non-mounted seat belt device is not pushed out. This effect is particularly effective for a passenger seated in a rear seat (rear seat) having a low seatbelt installation rate compared to a passenger seated in a front seat (driver's seat, passenger seat).

According to the vehicle occupant protection device of (3) above, the following effects can be obtained.
Since the seat back movable part is equipped with shock absorbers arranged on both sides of the frame in the vehicle width direction, the impact energy at the time of a side collision is reduced in the seat back movable part compared to the case where no shock absorber is provided. It can absorb, and can reduce the impact on the occupant during a side collision.
Further, since the shock absorbing material is disposed on both sides of the frame in the vehicle width direction, and the side airbag is disposed on the upper side of the frame when the seat back movable portion is in the contact position, the side airbag is It can suppress that an impact-absorbing material prevents that it expand | deploys upwards from a seat back movable part.

1 is a schematic view of a vehicle occupant protection device according to an embodiment of the present invention, a seat provided with the device, and a vehicle interior material when viewed from the front of the vehicle. FIG. 3 is a side view of the vehicle occupant protection device according to the embodiment of the present invention and a seat provided with the device when the seat back movable portion is in the contact position and the side airbag is deployed. In the embodiment of the present invention, (a) a side view of the vehicle occupant protection device, the seat, and the seat belt device when the seat back movable portion is in the storage position, and (b) the seat back movable portion is in the storage position and the contact position. FIG. 4 is a side view of the vehicle occupant protection device, the seat, and the seat belt device when in the intermediate position between the vehicle occupant protection device and the seat occupant protection device, and the seat It is a side view. FIG. 4 is a schematic perspective enlarged side view of the seat back movable portion and the airbag device of the vehicle occupant protection device according to the embodiment of the present invention when the seat back movable portion is in the contact position and the side airbag is in the retracted state. It is the AA line expanded sectional view of FIG.

  A vehicle occupant protection device (hereinafter also simply referred to as a protection device) according to an embodiment of the present invention will be described below with reference to FIGS. In the figure, UP indicates the upper side, FR indicates the front of the vehicle, IN indicates the inner side in the vehicle width direction, and OUT indicates the outer side in the vehicle width direction. Further, in the figure, a case where a protective device is provided on the right rear seat (rear seat) is shown, but the protective device may be provided on the left rear seat, and the left and right front seats (driver seat, It may be provided in the passenger seat).

  The protection device 10 according to the embodiment of the present invention is a device that protects (restrains) an occupant P seated on the seat 1 as shown in FIG.

The seat 1 includes a seat cushion 1a on which the occupant P is seated, a seat back 1b that is used as a backrest of the occupant P disposed at the rear end of the seat cushion 1a, and an upper portion of the seat back 1b. A headrest 1c that supports the head from the rear of the vehicle. The seat cushion 1a is attached to a vehicle body (not shown) located below the seat cushion 1a.

As shown in FIG. 1, the vehicle is provided with a seat belt device 2 for protecting an occupant P seated on the seat 1. The seat belt device 2 is, for example, a three-point seat belt device. However, the seat belt device 2 may be not a three-point type but a multi-point type of a four-point type or more.
The seat belt device 2 restrains the occupant P when worn. The seat belt device 2 includes a seat belt (webbing) 2a, a buckle 2b, and a tongue plate 2c.

When the seat belt device 2 is not mounted, the seat belt 2a is a portion extending in the vertical direction along the vehicle front side surface of the seat back 1b at or near the vehicle width direction outer end of the seat back 1b (hereinafter referred to as the vertical extending portion). 2d).

The buckle 2b is disposed in the vicinity of the seat cushion 1a on the inner side in the vehicle width direction from the occupant P seated on the seat 1.

The tongue plate 2c is detachable from the buckle 2b. The tongue plate 2c is provided on the seat belt 2a so as to be movable (slidable) in the longitudinal direction of the seat belt 2a. The tongue plate 2c is in contact with a stopper (not shown) provided on the seat belt 2a when the seat belt device 2 is not attached, and is positioned at the middle in the vertical direction of the vertical extending portion 2d of the seat belt 2a. It is at the same vertical position as the vertical center of the seat back 1b or its vicinity.
The occupant P wears the seat belt device 2 by pulling the seat belt 2a inward and downward in the vehicle width direction and engaging the tongue plate 2c with the buckle 2b.

  As shown in FIG. 2, the protection device 10 includes a recess 20, a seat back movable unit 30, and an airbag device 40.

  The recessed portion 20 (which may be referred to as a storage portion) is provided in a vehicle width direction outer side portion (door side portion) on the vehicle front side surface of the seat back 1b and at a lower portion so as to be recessed toward the rear of the vehicle. In addition, the vehicle width direction outer side part of the seat back 1b is a part located on the vehicle width direction outer side from the vehicle width direction center of the seat back 1b, and the lower part of the seat back 1b is lower than the vertical center of the seat back 1b. It is a part located on the side. As long as the recess 20 is open to the front of the vehicle, the recess 20 may be open to the outside in the vehicle width direction, or may be open to the rear of the vehicle. If the recess 20 is open not only in front of the vehicle but also outside in the vehicle width direction, it may be said that “the recess 20 is provided on the lower side of the seat back 1b outside in the vehicle width direction”.

  As shown in FIG. 3, the seat back movable unit 30 includes a storage position 30 a (FIG. 3A) in which the entirety or substantially the entire recess 20 is stored, and a predetermined angle (an angle less than 90 degrees) from the storage position 30 a. ) The intermediate position 30b (FIG. 3B), which is a position tilted (turned) toward the front of the vehicle, and the seat cushion 1a that is tilted (turned) further forward than the intermediate position 30b. It can rotate with respect to the seat back 1b at a contact position 30c (FIG. 3C) that contacts (loads) the upper surface. The seat back movable portion 30 is movable to a contact position 30c that contacts the upper surface of the seat cushion 1a by tilting (turning) from the storage position 30a toward the front of the vehicle with respect to the seat back 1b.

The seat back movable portion 30 is located on the outer side in the vehicle width direction from the body of the occupant P (AM50) so that the occupant P does not overlap with the occupant P when viewed from the vehicle front-rear direction when the occupant P is seated on the seat 1. It is desirable to be provided.
Further, the upper end of the seat back movable unit 30 when the seat back movable unit 30 is at the storage position 30a is the seat back movable unit 30 when the seat back movable unit 30 moves from the storage position 30a to the contact position 30c side. In order to suppress pushing up the arm of the occupant P, the elbow height of the occupant P (AM50) seated on the seat 1 is set to be equal to or lower than the elbow height.

The shape of the seat back movable part 30 is substantially the same as the shape of the recessed part 20 so that the entire recessed part 20 can be filled with the seat back movable part 30 when the seat back movable part 30 is in the storage position 30a. It has become.
Therefore, the gap between the seat back movable part 30 in the storage position 30a and the wall surface forming the recess 20 of the seat back 1b is zero or substantially zero. The vehicle front side surface of the seat back movable portion 30 in the storage position 30a is flush with or substantially flush with the vehicle front side surface of the seat back 1b where the recess 20 is not provided (smoothly connected). . When the recess 20 is open not only in front of the vehicle but also in the outer side in the vehicle width direction, the outer surface in the vehicle width direction of the seat back movable portion 30 at the storage position 30a is provided with the recess 20 of the seat back 1b. It is flush with or substantially flush with the outer side surface in the vehicle width direction of the unexposed portion (smoothly connected). When the recess 20 is open not only in front of the vehicle but also in the rear of the vehicle, the vehicle rear side surface of the seat back movable portion 30 at the storage position 30a is a portion of the vehicle in which the recess 20 of the seat back 1b is not provided. It is flush with or substantially flush with the rear side (smoothly connected).

When the occupant P is not seated on the seat 1, the seat back movable unit 30 is located at the storage position 30a.
When the occupant P is seated on the seat 1, the seat back movable unit 30 moves from the storage position 30a to the intermediate position 30b. Whether or not the occupant P is seated on the seat 1 can be determined by providing a seating sensor (not shown) on the seat cushion 1a.
When the occupant P seated on the seat 1 wears the seat belt device 2 (when the tongue plate 2c is engaged with the buckle 2b), the seat back movable unit 30 moves from the intermediate position 30b to the contact position 30c. Whether or not the occupant P is wearing the seat belt device 2 can be determined by providing a sensor (not shown) on the buckle 2b. When the seat back movable portion 30 is in the contact position 30c, the entire lower surface or substantially the entire lower surface of the seat back movable portion 30 (more than half of the vehicle width direction) contacts the upper surface of the seat cushion 1a.

  As shown in FIG. 1, the seat back movable portion 30 has a positional relationship that overlaps (wraps) with the vertically extending portion 2 d of the seat belt 2 a of the seat belt device 2 in a non-mounted state when viewed from the vehicle front-rear direction. is there. As shown in FIG. 3, when the seat back movable unit 30 moves from the storage position 30a to the contact position 30c side, specifically, when it moves from the storage position 30a to the intermediate position 30b, The vertically extending portion 2d of the seat belt 2a of the seat belt device 2 is pushed forward of the vehicle.

  As shown in FIG. 5, the seat back movable unit 30 includes a frame 31, a pad 32, a shock absorber 33, a cushion material 34, and a skin 35.

  The frame (which may be called an arm) 31 is made of metal. The frame 31 is supported by a seat back frame (not shown) of the seat back 1b so as to be rotatable around an axis extending in the vehicle width direction. Since the frame 31 is rotatably supported by the seat back 1b, the seat back movable portion 30 is rotatable with respect to the seat back 1b (can be tilted from the storage position 30a to the contact position 30c).

As shown in FIG. 4, the frame 31 has a frame shaft portion 31a that is rotatably supported by the seat back 1b, and the frame shaft portion 31a forward of the vehicle when the seat back movable portion 30 is in the contact position 30c. A frame extending portion 31b that extends.

The frame shaft portion 31a is rotatably supported by the seat back 1b by using a rod 31c or the like. The frame shaft portion 31a is provided at or near the lower end of the vehicle rear side end portion of the seat back movable portion 30 when the seat back movable portion 30 is at the contact position 30c.

The frame extending portion 31b extends from the frame shaft portion 31a to the vehicle front side end portion of the seat back movable portion 30 or the vicinity thereof when the seat back movable portion 30 is at the contact position 30c. The frame extending portion 31b may extend linearly from the frame shaft portion 31a to the front of the vehicle when the seat back movable portion 30 is in the contact position 30c, and includes at least one bending portion that curves in the vertical direction. It may extend.

The pad 32 is made of, for example, urethane foam. As shown in FIG. 5, the pad 32 has a frame 31 except for the upper part of the frame 31 when the seat back movable portion 30 is at the contact position 30c in the cross section of the portion where the airbag device 40 is mounted. Are arranged on both sides in the vehicle width direction.

  The shock absorber 33 is made of a material harder than the pad 32, and is made of, for example, hard urethane. The shock absorbers 33 are disposed on both sides of the frame 31 in the vehicle width direction (both sides in the vehicle width direction of the pads 32) except for the upper portion of the frame 31 when the seat back movable portion 30 is at the contact position 30c. ing.

  The cushion material 34 is disposed above the pad 32 and the shock absorbing material 33 when the seat back movable portion 30 is at the contact position 30c. There is a space between the cushion material 34 and the frame 31, and the airbag device 40 including the side airbag 41 is mounted in this space.

  The skin 35 constitutes a design part of the seat back movable part 30. The skin 35 may be made of a material and a color different from those of the seat back 1b. However, in order to improve the design of the seat 1 and the seat back movable portion 30, the same material and the same color as the skin of the seat back 1b. It is desirable that The skin 35 may have a single sheet configuration or a plurality of sheets.

The skin 35 is sewn with a thread 35a. The sewing location is the vehicle width direction outer side portion of the upper surface of the seat back movable portion 30 when the seat back movable portion 30 is in the contact position 30c (the portion on the vehicle width direction outer side from the vehicle width direction center of the seat back movable portion 30). ) In the vehicle longitudinal direction. When the thread 35a is broken, the side airbag 41 is deployed from the seat back movable portion 30 into the vehicle interior. When the skin 35 is made of a material that is easily stretched, the thread 35 a may be broken early by providing a force cloth 36 on the back side of the skin 35 and sewing the force cloth 36 together with the skin 35.

  The airbag device 40 is mounted on the seat back movable unit 30. The airbag device 40 is disposed on an upper portion of the frame extending portion 31b when the seat back movable portion 30 is at the contact position 30c, and is fixed to the frame extending portion 31b using, for example, a bolt (not shown).

The airbag device 40 includes a side airbag 41 and an inflator 42.

The side airbag 41 is mounted (stored) on the seat back movable unit 30 in a folded state. When the side airbag 41 detects or is predicted to have a side collision with the seat back movable portion 30 in the contact position 30c (at the time of a side collision or at the time of a side collision prediction), the gas blown from the inflator 42 The seat back movable portion 30 is developed upward from the outer side in the vehicle width direction of the occupant P and the vehicle interior material (door trim or pillar garnish) D (see FIG. 1).

As shown in FIG. 2, the side airbag 41 is a bag that protects the chest of the occupant P, and is a bag that does not protect the waist of the occupant P. The side airbag 41 may be a bag that protects not only the chest of the occupant P but also the head.

  Next, the operation of the embodiment of the present invention will be described.

(A) Since the side airbag 41 is configured to be deployed upward from the seat back movable portion 30 when a side collision is detected or predicted with the seat back movable portion being in the contact position, Compared with the case where the side airbag 41 is deployed from the seat back movable portion 30 to the inside in the vehicle width direction (occupant side), the occupant P can be prevented from obstructing the deployment of the side airbag 41.

(B) Since the seat back movable portion 30 is in contact with the upper surface of the seat cushion 1a when the seat back movable portion 30 is in the contact position, the airbag reaction force when the side airbag 41 is deployed upward from the seat back movable portion 30 is seated. It can be received by the vehicle body below the cushion 1a and the seat cushion 1a. Therefore, the strength of the seat back movable portion 30 is weakened as compared with the case where the seat cushion 1a and the vehicle body below the seat cushion 1a are not subjected to the airbag reaction force only by the seat back movable portion 30. The reinforcement of the seat back movable part 20 is not necessary.

(C) In this structure, since the armrest that has been conventionally required is not required, the protection device 10 can be provided regardless of the presence or absence of the armrest.

(D) Since the movable seat back movable portion 30 is provided at the contact position 30c that contacts the upper surface of the seat cushion 1a by tilting toward the front of the vehicle from the storage position 30a stored in the recess 20, the contact position It is possible to suppress the occupant P seated on the seat 1 from moving to the outside in the vehicle width direction (door side) by the seat back movable portion 30 in 30c (the posture of the occupant P seated on the seat 1 can be regulated) In addition, a deployment space for the side airbag 41 can be secured above the seat back movable portion 30. In this state, the side airbag 41 mounted on the seat back movable unit 30 is configured to be deployed upward from the seat back movable unit 30, so that the side airbag 41 is securely placed in the deployment space above the seat back movable unit 30. The airbag 41 can be deployed.

(E) Since the movable seat back movable portion 30 is provided at the contact position 30c that contacts the upper surface of the seat cushion 1a by tilting toward the front of the vehicle from the storage position 30a stored in the concave portion 20, the side collision initial stage At this time, the seat back movable portion 30 at the contact position 30c is pushed inward in the vehicle width direction and moved inward in the vehicle width direction and moved inward in the vehicle width direction by the vehicle interior material D deformed inward in the vehicle width direction. The occupant P is pushed inward in the vehicle width direction by the seat back movable portion 30 and moves inward in the vehicle width direction. Therefore, the occupant P can be moved inward in the vehicle width direction earlier than the case where the seat back movable portion 30 is not provided, and a deployment space for the side airbag 41 is secured above the seat back movable portion 30. be able to.

(F) Since the seat back movable part 30 can be positioned at the contact position 30c when the occupant P is seated on the seat 1 and the seat belt device 2 is worn, It can be restrained from the outside in the vehicle width direction. Therefore, it is not necessary to protect the occupant P's waist with the side airbag 41. Therefore, compared to the case where not only the chest of the occupant P but also the waist is protected by the side airbag 41, the side airbag 41 can be reduced in size, and the inflator 42 for injecting gas to the side airbag 41 can also be reduced in size. Therefore, compared with the case where the side airbag 41 protects not only the chest of the occupant P but also the waist, the deployment time of the side airbag 41 can be shortened, and the airbag device 40 can be made smaller (lighter).

(G) Since the sewing location of the skin 35 of the seat back movable portion 30 is provided on the outer side in the vehicle width direction on the upper surface of the seat back movable portion 30 at the contact position 30c, the side airbag 41 is connected to the seat back movable portion. It is possible to start the development obliquely upward from 30 and outward in the vehicle width direction. Therefore, the side airbag 41 can be deployed aiming at the space between the occupant P and the vehicle interior material D in the vehicle width direction.

(H) Since the seat back movable part 30 can be positioned at the storage position 30a when the passenger P is not seated on the seat 1, the seat back movable part 30 is stored at the storage position 30a when the passenger P gets on and off the vehicle. Can be located. Therefore, it can suppress that the seat back movable part 30 becomes obstructive when the passenger | crew P gets in / out of a car.

(I) Since the height of the seat back movable part 30 in the storage position 30a is equal to or less than the elbow height of the occupant P, the occupant P is seated on the seat 1 and the seat back movable part 30 is in contact with the contact position 30c from the storage position 30a. When moving to the side, the seat back movable unit 30 can be prevented from pushing up the arm of the occupant P.

(J) When viewed from the vehicle front-rear direction, the seat back movable portion 30 is in a positional relationship overlapping with the vertically extending portion 2d of the seat belt 2a when the seat belt device 2 is not worn, Since the vertically extending portion 2d of the seat belt 2a is pushed forward of the vehicle when moving to the contact position 30c side, the vertically extending portion 2d of the seat belt 2a and the vertically extending portion of the seat belt device 2 in the non-mounted state The tongue plate 2c located at 2d moves (pushes out) forward of the vehicle. Therefore, the occupant P can be encouraged to install the seat belt device 2 as compared with the case where the non-mounted seat belt device 2 is not pushed out. This effect is particularly effective for a passenger seated in a rear seat (rear seat) in which the seat belt device 2 is mounted at a lower rate than a passenger seated in a front seat (driver's seat, passenger seat).
Further, when the seat back movable part 30 moves from the storage position 30a to the contact position 30c side, the seat belt device 2 in the non-mounted state is pushed forward of the vehicle, so that the occupant P seated on the seat 1 does not twist his body. However, the seat belt device 2 (seat belt 2a and / or tongue plate 2c) can be easily reached. Therefore, the passenger P can easily wear the seat belt device 2.

(K) Since the seat back movable part 30 includes the shock absorbers 33 disposed on both sides of the frame 31 in the vehicle width direction, the seat back movable part 30 is compared to a case where the shock absorbers 33 are not provided. Thus, the impact energy at the time of a side collision can be absorbed, and the impact on the occupant P at the time of a side collision can be reduced.

(L) When the seat back movable part 30 includes the shock absorbers 33 disposed on both sides of the frame 31 in the vehicle width direction, and the side airbag 41 has the seat back movable part 30 at the contact position 30c. Therefore, the shock absorber 33 can be prevented from hindering the side airbag 41 from expanding and inflating upward from the seat back movable portion 30.

(M) Since the seat back movable part 30 includes the cushion material 34, the occupant P can use the airbag device 40 and the frame 31 at the normal time when the seat back movable part 30 is in the contact position 30c and the side airbag 41 is not deployed. It is possible to suppress a sense of discomfort in hitting.

(N) The shape of the seat back movable portion 30 is substantially the same as the shape of the recess 20, and when the seat back movable portion 30 is at the storage position 30 a, the seat back movable portion 30 fills the entirety of the recess 20. Therefore, (i) it is possible to improve the appearance of the seat 1 and the protection device 10 when the seat back movable unit 30 is in the storage position 30a. (Ii) Further, when the occupant P gets on and off the vehicle, the occupant P can be prevented from being caught on the wall surface of the seat back 1b where the recess 20 is formed and / or the seat back movable portion 30 at the storage position 30a.

(O) When the seat back movable portion 30 is in the contact position 30c, the entire lower surface or substantially the entire lower surface of the seat back movable portion 30 contacts the upper surface of the seat cushion 1a. The airbag reaction force when deploying upward from the seat can be stably received by the seat cushion 1a and the vehicle body below the seat cushion 1a.

DESCRIPTION OF SYMBOLS 1 Seat 1a Seat cushion 1b Seat back 1c Headrest 2 Seat belt apparatus 2a Seat belt 2b Buckle 2c Tang plate 2d Seat belt vertical extension part 10 Vehicle occupant protection apparatus 20 Recess part 30 Seat back movable part 30
30a Storage position 30b Intermediate position 30c Contact position 31 Frame 32 Pad 33 Shock absorber 34 Cushion material 35 Skin 35a Yarn 36 Force cloth 40 Airbag device 41 Side airbag 42 Inflator P Crew

Claims (3)

A recess provided in the vehicle width direction outer side and lower part of the seat back;
A seat back movable portion movable to a contact position that contacts the upper surface of the seat cushion by tilting toward the front of the vehicle from a storage position stored in the recess;
An airbag device comprising a side airbag mounted on the seat back movable portion;
Have
When the side airbag is detected or predicted in a state where the seat back movable portion is in the contact position, the side airbag is configured to expand upward from the seat back movable portion. Crew protection device.   The seat back movable part is in a positional relationship overlapping with the seat belt device in a non-mounted state when viewed from the vehicle front-rear direction, and the seat belt in the non-mounted state when moving from the storage position to the contact position side The vehicle occupant protection device according to claim 1, wherein the device is pushed forward of the vehicle. The seat back movable part includes a frame that is movably supported by the seat back, and shock absorbers that are disposed on both sides of the frame in the vehicle width direction,
The vehicle occupant protection device according to claim 1, wherein the side airbag is disposed on an upper side of the frame when the seat back movable portion is in the contact position.

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