JP4695205B2 - Crew protection device - Google Patents

Description

The present invention relates to an occupant protection device that reduces an impact applied to an occupant when a side impact load is applied to a door.

As an occupant protection device, a device in which a shock absorbing member (absorbing pad) for absorbing shock is provided in a door or a vehicle seat is known.
This type of occupant protection device is designed to absorb or disperse the side impact load until a side impact occurs on the door and a side impact load acts on the door and the side impact load reaches the vehicle seat. Met.
As such an occupant protection device, a device in which an energy absorption pad for absorbing an impact is provided on both a door and a seat back is known (for example, see Patent Document 1).

  The occupant protection device of Patent Document 1 is provided with a vertically bulged portion bulged on the front side portion of the seat back, and the bulged portion absorbs an impact force from the side of the vehicle to protect the seated occupant. A side energy absorbing pad is provided, and the outer side of the seat side energy absorbing pad in the vehicle side direction is reinforced with a reinforcing plate, and the door side energy that protects the seated occupant by absorbing impact force from the side of the vehicle is also applied to the door. An absorbent pad is provided.

  However, in the occupant protection device of Patent Document 1, since the door side energy absorbing pad is provided on the door and the seat side energy absorbing pad is provided on the seat back, the lumbar part of the occupant seated when the side collision occurs is removed. The restraint cannot generate a force that moves the occupant to the center of the passenger compartment.

Japanese Patent No. 3546143

An object of the present invention is to provide an occupant protection device capable of restraining the waist portion of an occupant seated when a side collision occurs and generating a force for moving the occupant to the center of the passenger compartment.
Another object of the present invention is to provide an occupant protection device capable of improving the occupant protection effect in consideration of the hardness of the door pad and the seat pad.

According to the first aspect of the present invention, a door opening through which an occupant gets on and off is provided on the side of the vehicle body, a door is provided in the door opening so as to be openable and closable, and a vehicle seat is disposed inside the door and facing the door opening. In the occupant protection device that reduces the impact applied to the occupant when a side impact load is applied to the door, the door is extended in the longitudinal direction of the vehicle body to reinforce the door, and the door beam is attached to the door opening. A vehicle seat comprising: a load transmitting portion for transmitting a load to the flange portion; and a door side pad for transmitting the load to the vehicle seat side so as to overlap with the door beam in a side view and not to overlap the load transmitting portion. The seat side pad is provided on the side of the seat cushion where the occupant sits so that it partially overlaps the door side pad in side view. It is hard to form, between the seat-side pad and the door-side pad, characterized by comprising a guide surface of the sheet-side pad facilitate transferring predetermined direction F.

According to a second aspect of the present invention, a door opening through which a passenger gets on and off is provided on the side of the vehicle body, and a door is provided in the door opening so as to be openable and closable. A vehicle seat is disposed inside the door and facing the door opening. In the occupant protection device that reduces the impact applied to the occupant when a side impact load is applied to the door, the door is extended in the longitudinal direction of the vehicle body to reinforce the door, and the door beam is attached to the door opening. A vehicle seat comprising: a load transmitting portion for transmitting a load to the flange portion; and a door side pad for transmitting the load to the vehicle seat side so as to overlap with the door beam in a side view and not to overlap the load transmitting portion. The seat side pad is provided on the side of the seat cushion where the occupant sits so that it partially overlaps the door side pad in side view. Is hard to form, a sheet-side pad, you characterized in that is offset to a position avoiding the seat frame is a frame of the seat cushion.

The present invention has the following effects.
In the invention according to claim 1 , since the seat-side pad is provided between the seat-side pad and the door-side pad to facilitate the movement of the seat-side pad in a predetermined direction, the seat-side pad can be moved in a predetermined direction. it can.

In the invention according to claim 2 , since the seat side pad is offset to a position avoiding the seat frame which is the frame body of the seat cushion, the force acting on the general seating surface from the seat side pad is prevented from moving the seat frame. without compromising the, Ru can be directed only to the occupant restraint.

1 is a side view of a vehicle that employs an occupant protection device according to a first embodiment of the present invention. 1 is a perspective view of an occupant protection device according to a first embodiment of the present invention. FIG. 3 is a side view of the occupant protection device shown in FIG. 2. FIG. 3 is a plan view of the occupant protection device shown in FIG. 2. It is the schematic diagram seen from the back surface of the passenger | crew protection apparatus shown by FIG. It is the schematic diagram seen from the back surface of the passenger | crew protection apparatus of 2nd Example which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

  As shown in FIGS. 1 to 5, the occupant protection device 10 according to the present invention is provided with a door opening 36 on which the occupant gets on and off the side of the vehicle body, and a door (left rear door) 18 that can be opened and closed freely. The vehicle seat 11 is disposed inside the door 18 so as to face the door opening 36, and reduces the impact applied to the occupant when a side impact load acts on the door 18.

  The vehicle seat 11 is a rear seat of the vehicle 12, and when a load (impact) is input to the side surface 13 of the vehicle 12, an impact caused by deformation of the vehicle door 15 or the vehicle body 16 is caused by the seat side support portion 14. ease.

  As shown in FIGS. 1 and 2, the vehicle 12 includes a vehicle body 16 and a vehicle door 15 (having a left front door 17 and a left rear door 18), and the vehicle body 16 includes an underbody 22 that forms the floor of the passenger compartment 21. And a side body 23 forming a side wall.

  The underbody 22 includes left and right side sills 24 formed with the side body 23, a rear side frame 25 extending from the side sills 24 to the rear of the vehicle 12, a seat mounting portion 27 that fixes the seat 11, and left and right seats provided below the seat 11. A cross member (floor center cross member) 28 extending toward the vicinity of the side sill 24 and a gusset portion 31 attached to both ends of the cross member 28 so as to be close to the left rear door 18.

  The side body 23 includes a center pillar 33 that extends from the center of the side sill 24 to the roof 32, a rear pillar 34 that extends rearward from the roof 32, a door opening 36 that forms an entrance / exit, and a rear side frame along a rear wheel 37. And a wheel house 41 after being formed in a row.

Next, the vehicle seat 11 will be described in detail with reference to FIGS.
The vehicle seat 11 is disposed along a door opening 36 that forms an entrance / exit of the vehicle body 16 and a door (left rear door) 18 provided in the door opening 36, and the entrance / exit facing the front / rear direction of the vehicle 12 in the door opening 36. The seat side support portion 14 of the seat back 46 of the seat 11 is erected along a vertical frame rear flange portion 44 (hereinafter abbreviated as “flange portion 44”) on the rear side of the vehicle 12 in the vertical frame 43. The flange portion 44 is provided with a deformation permission portion 47 that allows deformation when deformation is caused by the force input from the outside of the vehicle 12 (in the direction of the arrow a1). The seat back 46 includes a seat back frame 67.

  Further, in the vehicle seat 11, a seat-side pad (hard portion) 68 is disposed on the seat cushion 81, and the general seat surface 82 is promoted. As shown in FIG. 5, the seat side pad 68 is formed to be harder than the general seating surface 82 of the seat cushion 81. Further, the seat-side pad 68 is disposed offset to a position avoiding the seat frame 84 that is a frame body of the seat cushion 81.

The deformation | transformation permission part 47 is provided with the load relaxation part 61 which consists of a foam or a hollow body.
The door (left rear door) 18 includes a load transmission portion 63 that transmits the force input from the outside to the vehicle body 16, and the deformation allowing portion 47 is in the vertical direction of the vehicle 12 with respect to the load transmission portion 63 as shown in FIG. It is arranged at a position separated in the (Z-axis direction). In addition, the deformation | transformation permission part 47 may be spaced apart in the vehicle 12 front-back direction (X-axis direction).

  The door (left rear door) 18 is coupled to the load transmission portion 63 and extends in the front-rear direction of the vehicle 12. The door beam 65 overlaps the door beam 65 in a side view of the vehicle 12 (viewpoint in FIG. 1). And the deformation-permitting portion 47 is disposed so that the door-side pad 66 does not interfere when the door-side pad 66 moves toward the seat 11 due to deformation of the door (left rear door) 18.

  The seat-side pad 68 described above is formed of a softer material than the door-side pad 66. Further, the seat side pad 68 is disposed on the side portion 81a of the seat cushion 81 on which the occupant sits so as to partially overlap the door side pad 66 in a side view. Specifically, as shown in FIG. 3, the seat-side pad 68 is disposed so as to be shifted downward with respect to the door-side pad 66. As a result, the door-side pad 66 also has an action of urging the occupant toward the center of the passenger compartment 21 after contacting the seat-side pad 68.

  The door opening (entrance / exit) 36 includes a flange portion 44, a vertical frame center pillar flange portion 71, a horizontal frame upper flange portion formed by the roof side rail 72, and a horizontal frame lower flange portion formed by the side sill 24. Sealed with a door (left rear door) 18.

As shown in FIG. 4, the door (left rear door) 18 is provided between the outer panel 74, the inner panel 75, the resin door lining 76 attached to the inner panel 75, and the outer panel 74 and the inner panel 75. The door beam 65 and a door side pad 66 provided between the inner panel 75 and the door lining 76 are provided.
The door side pad 66 is, for example, a resin pad.

The seat 11 is also a three-seat structure comprising a left seat portion 77, a central seat portion 78, and a right seat portion (similar to the left seat portion 77). The seat 11 is symmetrical with respect to the center of the central seat portion 78. The seat cushion 81 is fixed to the seat cushion 81, and the seat back 46 is provided so as to stand up to the seat cushion 81.
The seat back 46 is provided with a left seat side support portion 14 that is continuous with the back support center portion 83 of the left seat portion 77, and is continuous with the back support center portion of the right seat portion (similar to the back support center portion 83). The seat side support part (symmetric with the left seat side support part 14) is provided.

  The left seat side support portion 14 has a base plate 51 on the front surface, a reinforcing member 48 on the back surface of the base plate 51, and a mounting stay 56 below the base plate 51.

  In the vehicle seat 11, when a load (impact) is input to the side surface 13 of the vehicle 12 and the door (left rear door) 18 or the side body 23 of the vehicle body 16 is deformed, the seat side support portion 14 is placed between the passenger M Since it is deformed while being interposed, a collision caused by the door (left rear door) 18 or the side body 23 can be absorbed.

  The occupant protection device 10 is provided on a side surface of a vehicle body and is provided with a door opening 36 on which the occupant gets on and off, and a door 18 that is openable and closable at the door opening 36. The vehicle seat is configured to reduce an impact applied to the occupant when a side impact load is applied to the door 18.

  A door beam 65 that extends in the longitudinal direction of the vehicle body and reinforces the door 18, is attached to the door beam 65, a load transmission portion 63 that transmits a load to the flange portion 44 of the door opening 36, and the door beam 65 and side view. And a door side pad 66 for transmitting a load to the vehicle seat 11 side so as not to overlap the load transmitting portion 63, and a side portion of the seat cushion 81 on which the occupant sits on the vehicle seat 11. Since the seat-side pad 68 is provided on the door 81 so as to partially overlap the door-side pad 66 in a side view, for example, when a side-impact load acts on the door 18, the door-side pad 66 absorbs the side-impact load. However, a side impact load can be transmitted from the door side pad 66 to the seat side pad 68. As a result, the side impact load can be transmitted to the seat cushion 81 while being attenuated.

  Since the seat side pad 68 is formed to be harder than the general seating surface 82 of the seat cushion 81, when the side impact load reaches the seat cushion 81, the seat side pad 68 raises the general seating surface 82 and sits down. It is possible to generate a force that restrains the occupant and moves the waist of the occupant to the center of the passenger compartment 21. When there is no difference in hardness between the seat-side pad 68 and the general seating surface 82, the general seating surface 82 is unlikely to rise. That is, since the seat-side pad 68 is formed to be harder than the general seating surface 82 of the seat cushion 81, the seat-side pad 68 can form the rising of the general seating surface 82 of the seat cushion 81 at an early stage. As a result, occupant restraint can be started early.

  Further, the vehicle seat 11 is provided with the seat side pad 68 on the side portion 81a of the seat cushion 81 on which the occupant sits so as to partially overlap the door side pad 66 in a side view. The speed at which the occupant contacts the portion that does not overlap the seat-side pad 68 can be reduced. As a result, it is difficult for the side impact load to act on the occupant, and the occupant protection effect can be improved.

  In the occupant protection device 10, since the seat side pad 68 is formed of a softer material than the door side pad 66, the deformation amount of the seat side pad 68 is larger than that of the door side pad 66. Thereby, the seat side pad 68 can be pressed by the door side pad 66, and the rising of the general seating surface 82 can be promoted by the seat side pad 68.

  In the occupant protection device 10, the seat-side pad 68 is offset to a position that avoids the seat frame 84 that is the frame body of the seat cushion 81, so that the force acting on the general seating surface 82 from the seat-side pad 68 is applied to the seat frame. It can be made to go only to a passenger | crew's restraint, without impairing by 84 movement prevention.

  As shown in FIG. 6, the occupant protection device 100 is provided with a door opening (same configuration as the door opening 36 shown in FIG. 1) on which the occupant gets on and off the side of the vehicle body. The vehicle seat 102 is disposed inside the door 103 so as to face the door opening, and the impact applied to the occupant when a side impact load acts on the door 103 is reduced.

  The door 103 extends in the longitudinal direction of the vehicle body and is attached to the door beam 108 that reinforces the door 103, and transmits a load to a flange portion of the door opening (the same configuration as the flange portion 44 shown in FIG. 1). A door that transmits a load to the vehicle seat 102 side so as to overlap the load transmitting portion (same configuration as the load transmitting portion 63 shown in FIG. 1) and the door beam 108 in a side view and not to overlap the load transmitting portion. Side pads 109.

  In the vehicle seat 102, a seat side pad 111 is provided on a side portion 112 a of a seat cushion 112 on which an occupant sits so as to partially overlap the door side pad 109 in a side view. It was made harder than the general seating surface 113.

  The door-side pad 109 includes a guide surface 115 that moves the seat-side pad 111 upward and to the center of the vehicle body, and the seat-side pad 111 includes a guide receiving surface 116 that is moved upward by the door-side pad 109 and to the center of the vehicle body. The guide surface 115 and the guide receiving surface 116 are guide surfaces that urge the seat side pad 111 to move in a predetermined direction.

  Furthermore, the seat side pad 111 is disposed offset to a position avoiding the seat frame 114 which is a frame body of the seat cushion 112.

  The occupant protection device 100 includes a guide surface (guide surface) 115 and a guide surface (guide reception surface) 116 for urging the seat-side pad 111 to move in a predetermined direction between the seat-side pad 111 and the door-side pad 109. Therefore, the seat side pad 111 can be moved in a predetermined direction.

  Note that the vehicle seat 11 is employed in the rear seat of the sedan in the embodiment, but can also be employed in the third row of the three-row seat.

  The occupant protection device according to the present invention is suitable for use in passenger cars such as sedans and wagons.

  DESCRIPTION OF SYMBOLS 10,100 ... Passenger protection apparatus, 11 ... Vehicle seat, 12 ... Vehicle, 18 ... Door, 36 ... Door opening, 44 ... Flange part, 46 ... Seat back, 63 ... Load transmission part, 65 ... Door beam, 66, 109 DESCRIPTION OF SYMBOLS ... Door side pad, 68, 111 ... Seat side pad, 81 ... Seat cushion, 81a ... Side part, 86 ... Seat frame, 115 ... Guide surface (guide surface), 116 ... Guide surface (guide receiving surface).

Claims (2)

A door opening for passengers to get on and off is provided on the side of the vehicle body, a door is provided in the door opening so as to be openable and closable, a vehicle seat is arranged inside the door so as to face the door opening, and a side impact load is applied to the door. In the occupant protection device that reduces the impact applied to the occupant when acting,
The door extends in the longitudinal direction of the vehicle body, reinforces the door, a load beam attached to the door beam and transmits a load to a flange portion of the door opening, and overlaps the door beam in a side view and A door side pad for transmitting a load to the vehicle seat side so as not to overlap with the load transmitting portion;
The vehicle seat is provided with a seat side pad on a side portion of a seat cushion on which an occupant sits so that a part of the seat overlaps with the door side pad in a side view,
The seat side pad is formed harder than the general seating surface of the seat cushion,
An occupant protection device comprising a guide surface between the seat side pad and the door side pad for urging the seat side pad to move in a predetermined direction. A door opening for passengers to get on and off is provided on the side of the vehicle body, a door is provided in the door opening so as to be openable and closable, a vehicle seat is arranged inside the door so as to face the door opening, and a side impact load is applied to the door. In the occupant protection device that reduces the impact applied to the occupant when acting,
The door extends in the longitudinal direction of the vehicle body, reinforces the door, a load beam attached to the door beam and transmits a load to a flange portion of the door opening, and overlaps the door beam in a side view and A door side pad for transmitting a load to the vehicle seat side so as not to overlap with the load transmitting portion;
The vehicle seat is provided with a seat side pad on a side portion of a seat cushion on which an occupant sits so that a part of the seat overlaps with the door side pad in a side view,
The seat side pad is formed harder than the general seating surface of the seat cushion,
The occupant protection device, wherein the seat-side pad is offset to a position avoiding a seat frame that is a frame body of the seat cushion.

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