JP2018167679A - Crew protection device - Google Patents

Abstract

An occupant protection device capable of protecting an occupant during a vehicle collision is provided. An occupant protection device includes a seat back that supports a torso of an occupant, a seat that is provided to be rotatable about a rotation axis that extends substantially in a vertical direction with respect to a vehicle body, and a connection that connects to the seat. A portion extending from the connecting portion to the outside of the passenger compartment as viewed from the vertical direction of the vehicle body, and transmitting a force applied by the object to the vehicle body when an object outside the vehicle collides with the vehicle body And a transmission member for rotating. [Selection] Figure 4

Description

  The present invention relates to an occupant protection device.

  Research has been conducted on technologies for improving passenger safety in the event of a vehicle collision. For example, according to the technique described in Patent Document 1, a collision is detected, the seat belt is wound up, the slack of the seat belt is eliminated, and the degree to which the occupant is restrained by the seat at the time of the collision is enhanced.

Japanese Patent Laid-Open No. 06-255447

  According to the invention described in Patent Literature 1, there is a possibility that the restraining force of the seat belt may increase the burden on the occupant's body depending on the collision direction when the vehicle collides.

  Therefore, the present invention provides an occupant protection device that can protect an occupant during a vehicle collision.

  The occupant protection device of the present invention (for example, the occupant protection devices 5 and 105 in the embodiment) includes a seat back (for example, the seat back 12 in the embodiment) that supports the occupant's trunk, and a vehicle body (for example, the embodiment). And a connecting portion (for example, the connecting portion 51 in the embodiment) connected to the seat (for example, the seat 10 in the embodiment) provided so as to be rotatable around a rotation axis substantially along the vertical direction. , 52, 151) extending from the connecting portion to the outside of the passenger compartment when viewed from the vertical direction of the vehicle body, and transmitting a force applied by the object to the vehicle body when an object outside the vehicle collides with the vehicle body And a transmission member that rotates the sheet (for example, the transmission members 50 and 150 in the embodiment).

  According to the present invention, when an object outside the vehicle collides with the vehicle body, the force at the time of collision of the object outside the vehicle is transmitted to the seat by the transmission member, and the seat is rotated about the rotation axis substantially along the vertical direction. it can. For this reason, the passenger | crew who tries to displace with respect to a sheet | seat by inertia at the time of a collision can be received by the seat back of a sheet | seat. Therefore, it is possible to protect the occupant when the vehicle collides.

  In the above occupant protection device, the first seat provided for the driver seat, the second seat provided for the passenger seat, and the transmission member for the driver seat coupled to the first seat. And the transmission member for the passenger seat coupled to the second seat, wherein the transmission member for the driver seat and the transmission member for the passenger seat are formed integrally. desirable.

  According to the present invention, the driver seat and the passenger seat can be independently rotated.

  In the above occupant protection device, the first seat provided for the driver seat, the second seat provided for the passenger seat, and the transmission member for the driver seat coupled to the first seat. And the transmission member for the passenger seat coupled to the second seat, wherein the transmission member for the driver seat and the transmission member for the passenger seat are provided separately. desirable.

  According to the present invention, the seat for the driver's seat and the seat for the passenger seat can be rotated in the same manner. Therefore, it is possible to reliably protect the passenger sitting in the driver's seat and the passenger sitting in the passenger seat.

  In the above occupant protection device, it is desirable that the transmission member extends from the connecting portion toward the front of the vehicle.

  According to the present invention, when an object outside the vehicle collides with the front part of the vehicle body and the engine room is crushed, the seat is rotated, and the occupant trying to displace forward due to the inertia at the time of collision is received by the seat back. Can do. Therefore, it is possible to protect the occupant during a frontal collision of the vehicle.

  In the above occupant protection device, the first transmission member extending from the connection portion toward the front of the vehicle and the second transmission member extending from the connection portion toward the rear of the vehicle are provided, and the first Of the transmission member and the second transmission member, it is desirable that one of the transmission member and the second transmission member extending from the connection portion toward the opposite side of the traveling direction of the vehicle is displaced so as not to be connected to the seat.

  According to the present invention, for example, when the vehicle is moving forward, the second transmission member extending from the connecting portion toward the rear of the vehicle cannot be connected to the seat, so that an object outside the vehicle is attached to the rear portion of the vehicle body. The seat does not rotate even if it makes a rear-end collision. For this reason, the passenger | crew who is going to displace back with respect to a sheet | seat by the inertia at the time of a collision can be reliably received from back by the seat back of a sheet | seat. The same applies when the vehicle is moving backward. Therefore, it is possible to protect the occupant when the vehicle collides.

  In the above occupant protection device, the occupant protection device includes a restricting portion (for example, a restricting portion 60 in the embodiment) that restricts rotation of a first predetermined angle or more from the reference state of the seat, and the connecting portion includes the seat from the reference state. It is desirable that the connection with the sheet is released in a state in which the sheet is rotated by a second predetermined angle that is smaller than the first predetermined angle.

  According to the present invention, the sheet can be freely rotated from the reference state within an angle range of the second predetermined angle or more and less than the first predetermined angle, so that the sheet can be rotated by the inertia of the rotation by the transmission member. Therefore, the sheet can be reliably rotated from the reference state to the position rotated by the first predetermined angle by using the force for rotating the sheet by the transmission member.

  According to the present invention, an occupant can be protected during a vehicle collision.

It is the schematic diagram which looked at the internal structure of the vehicle which concerns on 1st Embodiment from the side. It is the schematic diagram which looked at the internal structure of the vehicle which concerns on 1st Embodiment from upper direction. It is the schematic diagram which looked at the passenger protection device concerning a 1st embodiment from the side. It is the schematic diagram which looked at the passenger protection device concerning a 1st embodiment from the upper part. It is a block diagram showing some composition of an occupant protection device concerning a 1st embodiment. It is operation | movement explanatory drawing of the passenger | crew protection apparatus which concerns on 1st Embodiment. It is operation | movement explanatory drawing of the passenger | crew protection apparatus which concerns on 1st Embodiment. It is operation | movement explanatory drawing of the passenger | crew protection apparatus which concerns on 1st Embodiment. It is the schematic diagram which looked at the internal structure of the vehicle which concerns on the 1st modification of 1st Embodiment from upper direction. It is the schematic diagram which looked at the passenger protection device concerning the 2nd modification of a 1st embodiment from the upper part. It is the schematic diagram which looked at the passenger protection device concerning a 2nd embodiment from the upper part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals are given to configurations having the same or similar functions. And the description which overlaps those structures may be abbreviate | omitted.

[First Embodiment]
The vehicle 1 and the occupant protection device 5 of the first embodiment will be described.
FIG. 1 is a schematic view of an internal configuration of a vehicle according to the first embodiment viewed from the side. FIG. 2 is a schematic view of the internal configuration of the vehicle according to the first embodiment viewed from above. In the figure, the arrow UP indicates the upper side of the vehicle, the arrow FR indicates the front of the vehicle, and the arrow LH indicates the left side of the vehicle.
As shown in FIGS. 1 and 2, the vehicle 1 includes a vehicle body 3 that constitutes a skeleton of the vehicle 1, and an occupant protection device 5 that protects an occupant when a collision occurs in the vehicle 1.

  The occupant protection device 5 of the present embodiment protects the occupant during a frontal collision in which an object outside the vehicle (for example, a surrounding vehicle) collides with the front portion of the vehicle body 3. The occupant protection device 5 includes a seat 10 installed in the passenger compartment 7, a rotation connecting portion 20 that rotatably connects the seat 10 to the vehicle body 3, a fixing portion 30 that restricts rotation of the seat 10, and the seat 10. Includes a drive unit 40 and a transmission member 50 that rotate the vehicle body 3 with respect to the vehicle body 3, and a regulation unit 60 that defines the rotation range of the seat 10, and these are provided for a driver seat and a passenger seat, respectively. In addition, since the structure provided for the driver's seat in the occupant protection device 5 and the structure provided for the passenger seat are substantially the same, in the following description, the driver's seat of the occupant protection device 5 unless otherwise specified. The structure provided for the purpose will be described.

FIG. 3 is a schematic view of the occupant protection device according to the first embodiment viewed from the side.
As shown in FIG. 3, the seat 10 includes a seat cushion 11, a seat back 12, and a headrest 13. The seat cushion 11 supports the lower body of the occupant from below. The seat cushion 11 is formed of a frame that forms the skeleton of the seat cushion 11, for example, urethane foam, a pad material that is attached to the frame, and a cover that is formed of, for example, synthetic fiber or leather and covers the frame and the pad material. (Both not shown). The seat back 12 supports the occupant's trunk from the back side of the occupant. The seat back 12 is connected to the rear end portion of the seat cushion 11 so as to be tiltable. The headrest 13 supports the head and neck of the occupant. The headrest 13 is attached to the upper end portion of the seat back 12. Similarly to the seat cushion 11, the seat back 12 and the headrest 13 are also formed of a frame, a pad material, and a cover. The seat 10 is provided so as to be rotatable around the rotation axis O (that is, in the yaw direction) along the substantially vertical direction with respect to the vehicle body 3 by the rotation connecting portion 20. In addition, the rotating shaft O may be provided in parallel with the up-down direction, and may incline slightly.

  The rotation connecting part 20 connects the frame of the seat cushion 11 and, for example, the floor panel 3 a located in the vehicle body 3 directly below the seat cushion 11. The rotary connection unit 20 includes a first connection member 21 and a second connection member 22. The first connecting member 21 is fixed to the frame of the seat cushion 11 on the lower surface of the seat cushion 11 and constitutes a part of the seat 10. Teeth 23 are formed on the first connecting member 21 along the circumferential direction around the rotation axis O (details will be described later). The second connecting member 22 is fixed to the floor panel 3a. The first connecting member 21 and the second connecting member 22 are connected so as to be relatively rotatable about the rotation axis O. As a result, the seat 10 can rotate in the yaw direction with respect to the vehicle body 3.

FIG. 4 is a schematic view of the occupant protection device according to the first embodiment viewed from above.
As shown in FIGS. 3 and 4, the fixing unit 30 restricts the rotation of the seat 10 in the yaw direction in the reference state where the seat 10 is positioned so that the seated person faces forward. The fixing unit 30 includes a first fixing member 31 and a second fixing member 32. The first fixing member 31 is fixed to the frame of the seat cushion 11 on the lower surface of the seat cushion 11. The second fixing member 32 is fixed to the floor panel 3a. The 1st fixing member 31 and the 2nd fixing member 32 are mutually fitted, and unless the force more than predetermined is added, the state fixed mutually is maintained.

  The second fixing member 32 is formed as a rectangular plate-like body, for example. The second fixing member 32 is fixed upright with respect to the floor panel 3a. The second fixing member 32 is disposed such that the plate surface faces the front-rear direction of the vehicle 1 (hereinafter simply referred to as the front-rear direction). The 1st fixing member 31 is formed in the shape which clamps the 2nd fixing member 32 with a frictional force, for example. The predetermined fastening force between the first fixing member 31 and the second fixing member 32 is adjusted so that the second fixing member 32 is released from the first fixing member 31 when a force exceeding a predetermined value is applied to the seat 10. ing.

  As shown in FIG. 3, the drive unit 40 is, for example, a motor. The drive unit 40 is controlled by a sheet control unit 80 (see FIG. 5) described later. The drive unit 40 applies a driving force that rotates the first connecting member 21 around the rotation axis O with respect to the second connecting member 22. Thereby, the drive unit 40 can rotate the seat 10 in the yaw direction with respect to the vehicle body 3.

  As shown in FIG. 4, the transmission member 50 is a member extending along the front-rear direction. The transmission member 50 is disposed adjacent to the first connecting member 21 in the vehicle width direction. The transmission member 50 includes a connecting portion 51 that is connected to the first connecting member 21. The connecting portion 51 is a tooth that meshes with the tooth 23 formed on the first connecting member 21. The connecting portion 51 rotates the first connecting member 21 when the transmission member 50 is displaced in the front-rear direction while meshing with the teeth 23 of the first connecting member 21. The transmission member 50 extends into the engine room 8 from the connecting portion 51 to the outside of the vehicle compartment (front of the vehicle) when viewed from the top and bottom (see FIG. 2). Thereby, the transmission member 50 is displaced rearward at the time of a frontal collision of the vehicle 1 to rotate the seat 10.

  The restricting unit 60 restricts the rotation of the seat 10 from the reference state to a predetermined direction (clockwise in the example shown in the drawing) by a first predetermined angle (180 ° in this embodiment) or more. The restricting portion 60 is fixed to the floor panel 3a (see FIG. 3). The restricting unit 60 contacts the first fixing member 31 in a state where the sheet 10 is rotated from the reference state by a first predetermined angle in a predetermined direction. Thereby, the restricting unit 60 restricts the rotation of the seat 10 from the reference state by the first predetermined angle or more.

  Here, the teeth 23 formed on the first connecting member 21 will be described in detail. The teeth 23 are formed in a region that satisfies the following condition in the circumferential direction around the rotation axis O. The teeth 23 are not engaged with the connecting portion 51 of the transmission member 50 in the reference state of the sheet 10. The teeth 23 are engaged with the connecting portion 51 of the transmission member 50 by rotating the seat 10 in a predetermined direction from the reference state in a predetermined direction (for example, about 90 °), whereby the connecting portion 51 and the first connecting member 21 ( That is, the sheet 10) is connected. The connection between the connecting portion 51 and the first connecting member 21 is greater than or equal to a second predetermined angle (about 150 ° in the present embodiment) that is greater than the connection start angle in the predetermined direction from the reference state and smaller than the first predetermined angle. It is released in the rotated state.

FIG. 5 is a block diagram illustrating a partial configuration of the occupant protection device according to the first embodiment.
As shown in FIG. 5, the occupant protection device 5 further includes a collision determination unit 70 that predicts a collision that occurs in the host vehicle, and a seat control unit 80 that controls the drive unit 40.
The collision determination unit 70 includes, for example, a camera 71, a radar device 72, a finder 73, an object recognition device 74, and an external environment recognition unit 75.

  The camera 71 is a digital camera using a solid-state image sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). One or a plurality of cameras 71 are attached to any location of the host vehicle. When imaging the front, the camera 71 is attached to the upper part of the front windshield, the rear surface of the rearview mirror, or the like. When imaging the rear, the camera 71 is attached to the upper part of the rear windshield, the back door, or the like. When imaging the side, the camera 71 is attached to a door mirror or the like. For example, the camera 71 periodically and repeatedly images the surroundings of the host vehicle. The camera 71 may be a stereo camera.

  The radar device 72 radiates a radio wave such as a millimeter wave around the host vehicle, and detects a radio wave (reflected wave) reflected by the object to detect at least the position (distance and direction) of the object. One or a plurality of radar devices 72 are attached to any location of the host vehicle. The radar device 72 may detect the position and velocity of the object by FMCW (Frequency Modulated Continuous Wave) method.

  The finder 73 is LIDAR (Light Detection and Ranging or Laser Imaging Detection and Ranging) that measures the scattered light with respect to the irradiation light and detects the distance to the target. One or a plurality of viewfinders 73 are attached to an arbitrary location of the host vehicle.

  The object recognition device 74 performs sensor fusion processing on the detection results of some or all of the camera 71, the radar device 72, and the finder 73 to recognize the position, type, speed, and the like of the object. The object recognition device 74 outputs the recognition result to the external environment recognition unit 75.

  Based on information input from the camera 71, the radar device 72, and the finder 73 via the object recognition device 74, the outside recognition unit 75 recognizes the positions, speeds, accelerations, and the like of surrounding vehicles. The position of the surrounding vehicle may be represented by a representative point such as the center of gravity or corner of the surrounding vehicle, or may be represented by an area expressed by the outline of the surrounding vehicle. The “state” of the surrounding vehicle may include acceleration or jerk of the surrounding vehicle, or “behavioral state” (for example, whether the lane is changed or whether the lane is changed).

  In addition to the surrounding vehicles, the external environment recognition unit 75 may recognize positions of guardrails, utility poles, parked vehicles, persons such as pedestrians, and other objects. Thereby, the external environment recognition part 75 recognizes the surrounding state of the own vehicle, and predicts the collision which generate | occur | produces in the own vehicle. When the outside recognition unit 75 determines that a collision occurs in the host vehicle, the outside recognition unit 75 outputs the determination result to the seat control unit 80.

  The sheet control unit 80 controls the drive unit 40 based on the determination result of the external environment recognition unit 75. When it is predicted that an object outside the vehicle will collide with the vehicle body 3 from the front, the seat control unit 80 controls the drive unit 40 to rotate the seat 10 around the rotation axis O in the predetermined direction from the reference state.

Next, operation | movement of the passenger | crew protection apparatus 5 of this embodiment is demonstrated.
6 to 8 are operation explanatory views of the occupant protection device according to the first embodiment, and are schematic views of the occupant protection device as viewed from above.
As shown in FIG. 6, when the seat control unit 80 (see FIG. 5) predicts that an object outside the vehicle collides with the vehicle body 3, the seat control unit 80 controls the drive unit 40 to control the first fixing member 31 and the second fixing member. The seat 10 is released from being fixed, and the seat 10 is rotated about the rotation axis O from the reference state in a predetermined direction by a connection start angle. Thereby, the tooth | gear 23 of the 1st connection member 21 and the connection part 51 of the transmission member 50 mesh, and the connection part 51 and the 1st connection member 21 connect.

  Subsequently, when an object outside the vehicle collides front with the vehicle body 3, the engine room 8 (see FIG. 2) is crushed so as to be compressed in the front-rear direction. At this time, the deformation of the passenger compartment 7 (see FIG. 2) is suppressed in order to protect the passenger. When the engine room 8 is crushed in the front-rear direction, the transmission member 50 is pushed by an object outside the vehicle and displaced rearward. As shown in FIG. 7, since the connection part 51 of the transmission member 50 is connected to the first connection member 21, the first connection member 21 is moved in a predetermined direction by the displacement of the transmission member 50 toward the rear. Rotate. That is, the transmission member 50 transmits the force applied to the vehicle body 3 by an object outside the vehicle, and rotates the seat 10 in a predetermined direction.

  When the sheet 10 is rotated by a second predetermined angle in the predetermined direction from the reference state, the connection between the connecting portion 51 of the transmission member 50 and the first connecting member 21 is released (state shown in FIG. 7). The sheet 10 further rotates in a predetermined direction due to inertia during rotation. As shown in FIG. 8, when the sheet 10 rotates by a first predetermined angle in the predetermined direction from the reference state, the first fixing member 31 comes into contact with the restricting portion 60 and the rotation of the sheet 10 is restricted. Accordingly, the seat 10 is rotated by 180 ° from the reference state and stopped, and the occupant seated on the seat 10 faces rearward. As a result, the occupant protection device 5 can receive the inertial force at the time of the collision acting on the occupant by the seat back 12 when a frontal collision occurs in the own vehicle.

  As described above, the occupant protection device 5 of the present embodiment includes the transmission member 50 that rotates the seat 10 by transmitting the force applied to the vehicle body 3 by the object outside the vehicle when the object outside the vehicle collides with the vehicle body 3. Prepare. According to this configuration, when an object outside the vehicle collides with the vehicle body 3, the force at the time of collision of the object outside the vehicle is transmitted to the seat 10 by the transmission member 50, and the seat 10 is rotated about the rotation axis O along the substantially vertical direction. Can be rotated. For this reason, the passenger | crew who is going to displace | move with respect to the sheet | seat 10 by the inertia at the time of a collision can be received by the seat back 12 of the sheet | seat 10. FIG. Therefore, an occupant can be protected when the vehicle 1 collides.

  In particular, in this embodiment, the transmission member 50 extends forward from the connecting portion 51. For this reason, when an object outside the vehicle collides with the front part of the vehicle body 3 and the engine room is crushed, the force at the time of the collision of the object outside the vehicle is transmitted to the seat 10 by the transmission member 50, and the seat 10 is aligned in the vertical direction. Rotate 180 ° around the rotation axis O. For this reason, the passenger | crew who is going to displace ahead by the inertia at the time of a collision can be received by the seat back 12 of the seat 10. Therefore, it is possible to protect the occupant during a frontal collision of the vehicle 1.

  Further, the connecting portion 51 of the transmission member 50 is connected to the first connecting member 21 as the seat 10 is rotated by the driving portion 40 from the reference state by a connection start angle. For this reason, by not performing the rotation of the seat 10 by the drive unit 40, it is possible not to connect the connecting portion 51 of the transmission member 50 to the first connecting member 21 and to prevent the seat 10 from rotating when the vehicle 1 collides. . For this reason, for example, when the degree of collision of the vehicle 1 is expected to be such that the seat 10 does not need to be rotated, the transmission member 50 can be prevented from rotating the seat 10.

  Further, the connection portion 51 of the transmission member 50 is released from the connection with the first connection member 21 in a state in which the sheet 10 is rotated from the reference state by a second predetermined angle smaller than the first predetermined angle (180 °). For this reason, the sheet 10 is rotatable from the reference state in an angle range of the second predetermined angle or more and less than the first predetermined angle, and therefore the sheet 10 can be rotated by the inertia of the rotation by the transmission member 50. Therefore, the sheet 10 can be reliably rotated from the reference state to the position rotated by the first predetermined angle by using the force that rotates the sheet 10 by the transmission member 50.

  In the first embodiment, as shown in FIG. 2, the driver seat transmission member 50 connected to the driver seat 10 (first seat) and the passenger seat 10 (second seat) are connected. The transmission member 50 for the passenger seat connected to the seat) is provided as a separate body, but may be formed integrally. For example, as shown in FIG. 9, the transmission member 50 for the driver's seat and the transmission member 50 for the front passenger seat are connected via a connection member 53 that extends in the vehicle width direction in the engine room 8. Yes. Thus, when the engine room 8 is crushed so as to be compressed in the front-rear direction, the driver seat transmission member 50 and the passenger seat transmission member 50 are similarly displaced. The passenger seat 10 can be similarly rotated. Therefore, it is possible to reliably protect the passenger sitting in the driver's seat and the passenger sitting in the passenger seat.

  Moreover, in the said 1st Embodiment, although the tooth | gear 23 formed in the 1st connection member 21 is formed only in the one part area | region in the circumferential direction around the rotating shaft O, as shown in FIG. The teeth 24 may be formed on the entire circumference in the circumferential direction around the axis O. In this case, the connecting portion 52 of the transmission member 50 is a tooth that meshes with the tooth 24 and does not mesh with the tooth 24 in a state where the transmission member 50 is not displaced (a state in which no collision occurs in the vehicle). The connecting portion 52 is engaged with the teeth 24 when the transmission member 50 is displaced rearward, and is connected to the first connecting member 21. According to this configuration, the seat 10 can be rotated at an arbitrary angle from the reference state by the driving unit 40 in a state where the connecting portion 52 is not connected to the first connecting member 21. That is, the seat 10 can be rotated at an arbitrary angle from the reference state by the drive unit 40 when the vehicle 1 is predicted to collide. Further, since the seat 10 can be arbitrarily rotated until the transmission member 50 is displaced rearward, the seat 10 can be rotated backward, for example, during automatic operation. Further, since the transmission member 50 is displaced rearward, the connection portion 52 and the first connection member 21 are connected regardless of the rotational position of the seat 10, so that the seat 10 is reliably rotated by the transmission member 50. Can do.

[Second Embodiment]
An occupant protection device 105 according to the second embodiment will be described.
FIG. 11 is a schematic view of an occupant protection device according to the second embodiment viewed from above.
In the passenger protection device 5 of the first embodiment, one transmission member 50 is provided for each of the driver's seat and the passenger seat. On the other hand, the occupant protection device 105 of the second embodiment shown in FIG. 12 is different from the first embodiment in that a pair of transmission members 50 and 150 are provided for the driver seat and the passenger seat, respectively. Is different.

As shown in FIG. 11, the occupant protection device 105 includes a rotary connecting portion 20 having the first connecting member 21 on which the above-described teeth 24 are formed, and a pair of transmission members 50 and 150.
The first transmission member 50 includes the connecting portion 52 described above. The second transmission member 150 is disposed close to the first connection member 21 from the side opposite to the first transmission member 50 in the vehicle width direction. The second transmission member 150 includes a connecting portion 151 that is connected to the first connecting member 21. The connecting portion 151 is a tooth that meshes with the tooth 24 formed on the first connecting member 21. The connecting portion 151 is engaged with the teeth 24 when the second transmission member 150 is displaced forward, and is connected to the first connecting member 21. The connecting portion 151 rotates the first connecting member 21 when the second transmission member 150 is displaced in the front-rear direction while meshing with the teeth 24 of the first connecting member 21. The second transmission member 150 extends from the connecting portion 151 toward the outside of the passenger compartment (rear of the vehicle), for example, into the trunk as viewed from above and below. As a result, the second transmission member 150 is displaced forward and rotates the seat 10 at the time of a rear collision of the vehicle 1.

  One of the pair of transmission members 50, 150 that extends from the connecting portions 52, 151 toward the opposite side of the traveling direction of the vehicle 1 is displaceably displaceable with respect to the first connecting member 21. That is, the first transmission member 50 is not connectable to the first connecting member 21 when the vehicle 1 moves backward. Further, the second transmission member 150 is not connectable to the first connecting member 21 when the vehicle 1 moves forward. The avoidance of the connection between the transmission members 50 and 150 and the first connecting member 21 can be realized, for example, by bending the transmission members 50 and 150 so as to be separated from the first connecting member 21.

  Thus, in this embodiment, the 2nd transmission member 150 is extended toward the back from the connection part 151. FIG. For this reason, when an object outside the vehicle collides with the rear part of the vehicle body 3 and the rear part (for example, trunk) of the vehicle body 3 is crushed, the force at the time of collision of the object outside the vehicle is transmitted to the seat 10 by the second transmission member 150. The sheet 10 can be rotated 180 ° around the rotation axis O along the vertical direction. As a result, when the seat 10 is positioned rearward during automatic driving or the like, an occupant attempting to move rearward due to inertia at the time of collision can be received by the seat back 12 of the seat 10. Therefore, the occupant can be protected at the time of a rear collision of the vehicle 1.

  In addition, one of the pair of transmission members 50 and 150 extending from the connecting portions 51 and 151 toward the opposite side of the traveling direction of the vehicle 1 is displaced so as not to be connected to the first connecting member 21. For this reason, for example, when the vehicle 1 is moving forward, the second transmission member 150 extending rearward from the connecting portion 151 cannot be connected to the first connecting member 21, so that an object outside the vehicle is the vehicle body. 3 does not rotate even if it collides with the rear part. Thereby, the passenger | crew who is going to displace back with respect to the sheet | seat 10 by the inertia at the time of a collision can be reliably received from back by the seat back 12 of the sheet | seat 10. FIG. The same applies when the vehicle 1 is moving backward. Therefore, an occupant can be protected when the vehicle 1 collides.

  In the second embodiment, the second transmission member 150 is provided on the opposite side of the first transmission member 50 in the vehicle width direction with respect to the first connection member 21. It may be provided on the same side as the member 50 and at a different position in the vertical direction.

The present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, in the above embodiment, when it is predicted that a collision will occur in the vehicle 1, the drive unit 40 rotates the seat 10 from the reference state to the connection start angle, but the present invention is not limited to this. When it is detected that a collision has occurred in the vehicle 1, the drive unit 40 may rotate the seat 10 from the reference state to rotate the connection start angle before the transmission members 50 and 150 are displaced.

Moreover, in the said embodiment, although the connection parts 51 and 52 of the transmission member 50 are not connected with the 1st connection member 21 at least when the sheet | seat 10 exists in a reference | standard state, it is not limited to this. That is, the connecting portion of the transmission member 50 may be configured to be connected to the first connecting member 21 when the sheet 10 is in the reference state. The occupant protection device may be configured to rotate the seat 10 only by the transmission member without predicting or detecting a collision of the vehicle 1.
A one-way clutch that freely rotates the first connecting member 21 only in a predetermined direction with respect to the second connecting member 22 may be interposed between the first connecting member 21 and the second connecting member 22.

  In the above embodiment, the configuration for rotating the driver seat 10 and the passenger seat 10 has been described. However, the occupant protection device may be configured to rotate the rear seat. . In this case, for example, the transmission member for the rear seat may be formed integrally with the transmission member for the driver seat or the transmission member for the passenger seat.

  Moreover, in the said embodiment, although the fixing | fixed part 30 which controls the rotation of the sheet | seat 10 in the yaw direction is comprised by the 1st fixing member 31 and the 2nd fixing member 32 which mutually fit, it is not limited to this. The fixing unit may be a lock mechanism that can control the fixing state by the seat control unit 80, for example.

  Moreover, in the said embodiment, although the passenger | crew protection apparatuses 5 and 105 are comprised so that it may respond to the front collision and rear surface collision of the vehicle 1, you may be comprised so that it may respond to a side collision. In this case, the transmission member extending along the vehicle width direction is formed so as to extend from the connecting portion with the seat 10 toward the side of the vehicle outside the passenger compartment, and the seat 10 is in a reference state at the time of a side collision of the vehicle. From 90 degrees.

  Further, in the above-described embodiment, the transmission member extending from the coupling portion toward the outside of the passenger compartment in the present invention is arranged near the one end portion of the transmission member 50. However, the coupling portion 51 is the transmission member. You may arrange | position in the arbitrary places among the edge part of 50 or between one edge part and the other edge part.

  In addition, the constituent elements in the above-described embodiments can be appropriately replaced with known constituent elements without departing from the spirit of the present invention, and the above-described embodiments and modifications may be appropriately combined.

  DESCRIPTION OF SYMBOLS 3 ... Vehicle body 5,105 ... Occupant protection device 10 ... Seat 12 ... Seat back 50, 150 ... Transmission member 51, 52, 151 ... Connection part 60 ... Restriction part O ... Rotating shaft

Claims (6)

A seat back that supports the torso of the occupant, and a seat that is provided to be rotatable about a rotation axis along a substantially vertical direction with respect to the vehicle body;
A force that is applied to the vehicle body when an object outside the vehicle collides with the vehicle body. A transmission member for transmitting the rotation of the sheet,
Crew protection device. A first seat provided for a driver's seat;
A second seat provided for a passenger seat;
The transmission member for the driver's seat coupled to the first seat;
The transmission member for the passenger seat connected to the second seat,
The transmission member for the driver's seat and the transmission member for the passenger seat are formed integrally.
The occupant protection device according to claim 1. A first seat provided for a driver's seat;
A second seat provided for a passenger seat;
The transmission member for the driver's seat coupled to the first seat;
The transmission member for the passenger seat connected to the second seat,
The transmission member for the driver's seat and the transmission member for the passenger seat are provided separately.
The occupant protection device according to claim 1. The transmission member extends from the connecting portion toward the front of the vehicle.
The occupant protection device according to any one of claims 1 to 3. The first transmission member extending from the connecting portion toward the front of the vehicle;
The second transmission member extending from the connecting portion toward the rear of the vehicle,
Of the first transmission member and the second transmission member, one of the first transmission member and the second transmission member extending from the connection portion toward the opposite side of the traveling direction of the vehicle is displaced so as not to be connected to the seat.
The occupant protection device according to any one of claims 1 to 4. A regulation unit that regulates rotation of a first predetermined angle or more from a reference state of the sheet;
The connecting portion is released from the connection in a state in which the sheet is rotated from the reference state by a second predetermined angle smaller than the first predetermined angle.
The occupant protection device according to any one of claims 1 to 5.

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