JPH0729008Y2 - Vehicle seat - Google Patents

Description

[Detailed description of the device]

[0001]

The present invention has a plurality of seating portions,
A plurality of seat backs divided corresponding to each seating portion are arranged side by side on both sides of the vehicle body, and a seat back near the outside of the vehicle compartment is supported rotatably between an upright position and a forward tilt position via a pivot bracket. A vehicle seat comprising

[0002]

2. Description of the Related Art As a conventional vehicle seat of this type,
For example, there is one as shown in Japanese Utility Model Laid-Open No. 2-139125.

That is, the seat back of the vehicle seat is divided into two in both directions, and the two divided seat backs are rotatably supported, and the two seat backs are provided below the two seat backs. The lower rotation restricting mechanism that restricts the rotation of the other seat back with respect to one of the seat backs is provided by utilizing the difference in the rotation loci of the two seat backs. An upper rotation restricting mechanism that restricts the rotation by coupling the seat back of the other seat back to the other seat back is provided.

[0004]

However, in such a conventional vehicular seat, the lower rotation regulating mechanism and the upper rotation regulating mechanism that regulate the rotation of the respective seat backs are opposed to each other. Since it is provided at one side edge of each seat back closer to the interior side, even if an excessive load is applied to each seat back at the time of a collision, etc., the other side edge closer to the outside of the vehicle without a rotation control mechanism is provided. It is not possible to prevent rotation of the pivot point of the section. Therefore, at the time of a collision or the like, there is a problem that the other side edge portion having no rotation restricting mechanism is largely deformed so as to be twisted backward.

Further, since the upper rotation restricting mechanism restricts the rotation of one seat back to the other by connecting the seat backs to each other, when an excessive load is applied to both seat backs at the same time, There is a problem that the rearward rotation of both seat backs cannot be restricted only by the lower rotation restricting mechanism, and the seat backs are deformed.

The present invention has been made by paying attention to such a conventional problem, and even if an excessive load is applied to the rear of a plurality of divided seat backs at the time of a collision or the like, the vehicle is rotated. An object of the present invention is to provide a vehicle seat that can prevent the deformation of a movable seat back located outside the passenger compartment as much as possible.

[0007]

The gist of achieving the above object is that a plurality of seatbacks having a plurality of seating portions and divided corresponding to the respective seating portions are arranged side by side in the vehicle body. In a vehicle seat that is provided and rotatably supports a seat back near the outside of the vehicle compartment between a standing position and a forward tilted position, the seat back near the outside of the vehicle compartment is a seat back of the seat back. An outer lock mechanism and an inner lock mechanism for restricting rotation and holding the same in an upright position are provided, and the outer lock mechanism has an upper side of one side edge portion along the vehicle body side wall side of the seat back outside the vehicle compartment. And an outer engaged portion provided on the side wall of the vehicle body so that the outer engaging portion is engaged and disengaged, and the inner lock mechanism is provided in the passenger compartment of the seat back outside the passenger compartment. An inner engaging portion provided on the lower side of the other side edge portion that faces the direction, and an inner portion provided on the pivot bracket that supports the lower side of the other side edge portion so that the inner engaging portion is disengaged. formed is, the outer from the engaged portion
In conjunction with the binding release operation of Rokku mechanism, wherein the inner
A vehicle seat having an interlocking member capable of releasing a constraint of a lock mechanism .

[0008]

[0009]

When the vehicle seat is in the normal seated state, the seat back outside the vehicle compartment is held in the upright position by the outer lock mechanism and the inner lock mechanism.
A seated person can lean back.

At this time, the outer lock mechanism for holding the seat back near the outside of the vehicle compartment in the upright position is in a locked state for restricting the rotation of the seat back near the outside of the vehicle compartment. That is, the outer engaging portion provided on the upper side of one side edge portion of the seat back along the vehicle body side wall side is engaged with the outer engaged portion provided on the vehicle body side wall side.

By the outer lock mechanism in the locked state, the upper side of one side edge of the seat back, which is located at a distance from the pivot bracket that rotatably supports the seat back, is non-pivotally restrained. .

On the other hand, the inner lock mechanism, which cooperates with the outer lock mechanism and holds the seat back near the outside of the vehicle compartment in the upright position, is also in the locked state like the outer lock mechanism. That is, the inner engaging portion provided on the lower side of the other side edge portion of the seat back facing the passenger compartment is the inner engaged portion provided on the pivot bracket that supports the lower side of the other side edge portion. Engaged with the section.

With the inner lock mechanism in the locked state, the outer lock mechanism is located on the opposite side of one side edge of the seat back, and the lower side of the other side edge close to the pivot bracket is not rotatable. Be detained.

As described above, the seat backs, which are held in the upright position and which are located outside the passenger compartment, have the side lock portions on both sides thereof by the outer lock mechanism and the inner lock mechanism, respectively.
Since it is non-rotatably restrained, even if an excessive load is applied to the seat back at the time of a collision, it is possible that only one side edge portion is largely deformed so as to be twisted backward with respect to the other side edge portion. Therefore, the deformation of the seat back can be suppressed as much as possible.

When the seat back of the vehicle seat near the outside of the vehicle compartment is rotated from the upright position to the forward tilted position, the restraint states of the outer lock mechanism and the inner lock mechanism are released. That is, each engaging portion of each lock mechanism is disengaged from the engaged portion. As a result, the seat back can be rotated so as to tilt forward, and the seat back may be tilted forward.

Further, the vehicle seat is provided with an interlocking member capable of releasing the restraint of the inner lock mechanism in association with the restraint releasing operation of the outer lock mechanism .
It becomes possible to release the lock of each lock mechanism in synchronization with one lock release operation.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment of the present invention.
As shown in FIG. 1, a vehicle seat 10 is a rear seat arranged in the rear part of a vehicle body, and includes a seating portion 11 for two persons. The vehicle seat 10 includes a long rear seat cushion 12 installed on a vehicle body floor A and a rear seat back 13 supported on a rear wall B.

The rear seat back 13 has a left back 20 and a right back 3 so as to correspond to the seating portion 11 for two persons.
It is divided into 0 and left and right. The left back 20 and the right back 30 are supported by the rear wall B via a pivot bracket 40 and a pivot member 25 so as to be rotatable between an upright position and a forward tilt position, respectively.

A substantially rectangular opening is formed in the rear wall B so that the vehicle compartment in front of the rear wall B and the trunk compartment in the rear of the rear wall B communicate with each other when the left back 20 and the right back 30 are tilted forward. C is opened.

Inner lock mechanisms for restricting the rotation of the left back 20 or the right back 30 and holding the left back 20 or the right back 30 at the standing position at the side edges 20b, 30b of the left back 20 and the right back 30 in the vehicle interior direction. Fifty, five
0a is provided, and the side edges 20a of the left back 20 and the right back 30 in the vehicle exterior direction,
Similarly, the outer lock mechanism 60, 60a for restricting the rotation and holding it in the standing position is provided on the 30a.

The left back 20 and the right back 30 are
The left back 2 is constructed symmetrically to each other.
0 will be described as a representative and will be replaced with the description of the write-back 30.

As shown in FIG. 1, the left back 20 is internally provided with a frame member 21 formed by bending a pipe material into a substantially rectangular shape. A box body 61 of an outer lock mechanism 60 is bolted to the upper side of the side portion 23 of the frame member 21 in the vehicle exterior direction via a mounting bracket 62.

The box 61 is formed with a fitting groove 61a into which a striker 69 projecting from the side wall of the vehicle body is fitted, and a fan-shaped engageable with the striker 69 fitted into the fitting groove 61a. A latch member 63 is rotatably attached to the inside of the box body 61 via a pin member 64.

The latch member 63 is urged by the spring member 65 in the direction of engaging the striker 69. The striker 69 is formed in a substantially U shape in order to maintain strength,
It is fixed to a vehicle body side wall (not shown) via a fixed bracket 68. The latch member 63 of the outer lock mechanism 60 constitutes an outer engaging portion, and the striker 69 fixed to the side wall of the vehicle body constitutes an outer engaged portion.

A lock knob 67 for rotatably operating the latch member 63 is connected to one end of the latch member 63 via a rivet 66. The lock knob 67 passes through an insertion hole 61b formed in the upper portion of the box body 61 and is installed in an insertion portion formed in the left back 20. A lock lever 67a is connected to the upper end of the lock knob 67, and the tip end side of the lock lever 67a is left back 2.
It protrudes upward from the upper part of 0.

The lock knob 6 connected to the latch member 63
One end of the interlocking member 70 is connected to the lower end of 7.
The interlocking member 70 includes an outer casing 71 and an inner cable 72 movably inserted inside the outer casing 71. The interlocking member 70 is arranged along the side portion 23 and the lower portion 24 of the frame member 21, and the other end thereof is extended to the inner lock mechanism 50 side.

The inner lock mechanism 50 includes the side frame 2 fixed to the lower end of the side portion 22 of the frame member 21.
6 is provided. The side frame 26 has side portions 22.
The side wall portion 26a along the lower portion 24 and the lock attachment portion 26b along the lower portion 24.
Long hole 28 through which the shaft is removably inserted, and pivot bracket 40
A pivot hole 27 into which the pivot member 45 is rotatably fitted is formed.

The lock mounting portion 26b of the side frame 26
A lock holding member 51 having a substantially U-shaped cross section is fixed to the lock holding member 51, and a lock member 52 is slidably supported by the lock holding member 51. The tip end 52a of the lock member 52 is provided with a taper for easy insertion into the elongated hole 28, and the rear end 52b is connected to the inner cable 72 at the other end of the interlocking member 70. Lock member 52
Is urged by the spring member 53 in a direction to be fitted into the lock hole 43 of the pivot bracket 40.

The pivot bracket 40 is attached to the left back 20.
Side edges 2 of each of the light and the light back 30 in the vehicle interior direction
The lower ends of 0b and 30b are rotatably supported. More specifically, the pivot bracket 40 includes the left back 2
0 is attached to the vehicle body floor A between the lightback 30 and the mounting portion 41 that is bolted to the vehicle body floor A;
It is composed of a pedestal portion 42 and a pivot portion 44.

At the front end of the side wall of the pedestal portion 42, the lock hole 43 into which the tip portion 52a of the lock member 52 is detachably fitted.
Is formed, and a pivot member 45 that extends substantially horizontally to the left and right is provided at a substantially central portion of the pivot support portion 44. The pivot member 45 is rotatably fitted in the pivot support hole 27 of the side frame 26.

The lock member 52 of the inner lock mechanism 50
Forms an inner engaging portion, and the lock hole 43 of the pivot bracket 40 forms an inner engaged portion. The left back 20 pivotally supports a lower portion of the side edge portion 20b in the vehicle interior direction so as to be rotatable, and a lower portion of the side edge portion 20a in the vehicle exterior direction to be pivotally supported on the vehicle body side wall side. It is supported by the pivot pin 25 so as to be tilted forward.

Next, the operation will be described. As shown in FIGS. 1 and 2, the rear seat back 13 of the vehicle seat 10
However, when the vehicle seat 10 is held in a standing position that extends obliquely rearward from the rear end of the rear seat cushion 12 along the rear wall B, the vehicle seat 10 is in a normal seated state, and the seated person is seated on the rear seat back 13. You can lean back.

At this time, the inner lock mechanisms 50 and 50a and the outer lock mechanisms 60 and 60a, which hold the left back 20 and the right back 30 in a non-rotatable manner and hold them in the standing position, are both in a locked state. Hereinafter, the left back 20 will be described as a representative, and will be replaced with the description of the right back 30.

The outer lock mechanism 60 in the locked state
The latch member 63 installed in the box body 61, which is the outer engaging portion, has the spring member 65 attached to the striker 69 on the side wall of the vehicle body, which is the outer engaged portion fitted in the fitting groove 61a of the box body 61. It is engaged by the biasing force. As a result, the side edge 20 at a distance from the pivot pin 25 that rotatably supports the side edge 20a of the left back 20 in the vehicle exterior direction.
The upper side of a is constrained so that it cannot swing.

On the other hand, the inner lock mechanism 50 that holds the left back 20 in the upright position in cooperation with the outer lock mechanism 60 is also in the locked state like the outer lock mechanism 60. That is, the tip end portion 52 a of the lock member 52, which is the outer engagement portion provided on the side frame 26.
However, due to the force of the spring member 53, the lock hole 4 of the pivot bracket 40, which is the outer engaged portion, passes through the elongated hole 28.
3 is fitted.

Inner lock mechanism 50 in the locked state
Thus, the outer lock mechanism 60 is located on the opposite side of the one side edge portion 20a of the left back 20 and the lower side of the other side edge portion 20b close to the pivot bracket 40 is non-rotatably restrained.

As described above, since the left back 20 held in the upright position has the side edge portions 20a and 20b on both sides thereof restrained by the outer lock mechanism 60 and the inner lock mechanism 50 so as not to rotate. Even if an excessive load is applied to the left back 20 at the time of a collision or the like, only one side edge portion 20b is not significantly deformed so as to be twisted backward with respect to the other side edge portion 20a, and the left back 20 is deformed. Is suppressed as much as possible.

The left back 20 of the vehicle seat 10 is
When rotating from the upright position to the forward tilted position, the restraint states of the outer lock mechanism 60 and the inner lock mechanism 50 are released. That is, as shown in FIGS. 1 and 3, the lock lever 67 a of the outer lock mechanism 60 protruding from the upper portion of the left back 20 is attached to the spring member 65.
When it is pulled upward against the urging force of the latch member 63,
Rotates clockwise and is separated from the striker 69.

Further, by releasing the restraint of the outer lock mechanism 60 for pulling up the lock lever 67a, the inner cable 72 inserted into the outer casing 71 of the interlocking member 70 is pulled, whereby the inner lock mechanism 50 is locked. The member 52 slides inward against the urging force of the spring member 53, and the tip portion 52a of the lock member 52 is
Comes out of the lock hole 43 of the pivot bracket 40.

As a result, the unlocking operation of the inner lock mechanism 50 and the outer lock mechanism 60 can be performed in synchronization with each other, and the left back 20 can be rotated so as to tilt forward, as shown in FIG. , You can move it forward. The operation of the right back 30 is almost the same as that of the left back 20 described above.

The vehicle seat 10 according to the present embodiment.
Includes a seating portion 11 for two persons, but the inner lock mechanism 50 and the outer lock mechanism 6 according to the present embodiment.
0 may be provided in a seat back near the outside of the vehicle in a vehicle seat having seating portions for three or more persons.

[0042]

According to the vehicle seat of the present invention,
An outer lock mechanism and an inner lock mechanism for holding the seat back near the outside of the vehicle compartment in the standing position are provided, and the outer lock mechanism is configured to restrict the upper rotation of one side edge portion of the seat back. Is configured so as to restrict the rotation of the lower side edge of the other side of the seat back, the vehicle can rotate even if an excessive load is applied to the seat back toward the rear in the event of a collision. It is possible to prevent deformation of the side edge portion of the seat back near the outdoor as much as possible.

[0043] The in conjunction with the restraining release operation of the outer lock mechanism, the treasure provided an interlocking member which can be restraint releasing operation of the inner lock mechanism to the vehicle seat, in synchronization with each lock according to one of the binding release operation can be binding release mechanism and Do Ri, it is possible to improve the usability.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a vehicle seat according to the present invention.

FIG. 2 is an exploded perspective view showing an inner lock mechanism of an embodiment of a vehicle seat according to the present invention.

FIG. 3 is an exploded perspective view showing an outer lock mechanism of an embodiment of a vehicle seat according to the present invention.

FIG. 4 is an operation explanatory view showing a state where the left back of the embodiment of the vehicle seat according to the present invention is in the standing position.

FIG. 5 is an operation explanatory view showing a state in which the left back of the vehicle seat according to the embodiment of the present invention is in the forward tilted position.

[Explanation of symbols]

 10 ... Vehicle seat 12 ... Rear seat cushion 13 ... Rear seat back 20 ... Left back 30 ... Right back 40 ... Pivot bracket 43 ... Lock hole 50, 50a ... Inner lock mechanism 52 ... Lock member 60, 60a ... Outer lock mechanism 63 ... Latch member 69 ... striker 70 ... interlocking member

Claims (1)

[Scope of utility model registration request] 1. A plurality of seat backs, each of which has a plurality of seating portions and is divided corresponding to each seating portion, are arranged side by side in a lateral direction of a vehicle body, and a seat back near the outside of the vehicle compartment is set to a standing position and a forward leaning position. In a vehicle seat that is rotatably supported via a pivot bracket, the seat back near the outside of the vehicle compartment is
An outer lock mechanism and an inner lock mechanism for restricting the rotation of the seat back and holding the seat back in an upright position are provided, and the outer lock mechanism is one side along the vehicle body side wall side of the seat back near the outside of the vehicle compartment. In order to disengage the outer engaging portion provided on the upper side of the edge portion and the outer engaging portion,
The inner lock mechanism includes an outer engaged portion provided on the side wall of the vehicle body, and the inner lock mechanism has an inner engaging portion provided on a lower side of the other side edge portion of the seat back near the outer side of the vehicle body, which is directed toward the vehicle interior. , the order inner engaging portion to disengage said Ri from the other side edge portion inner engaged portion provided on the pivot bracket for supporting the lower side of the formation, restraint of the outer locking mechanism <br/> A vehicle seat having an interlocking member capable of performing a constraint release operation of the inner lock mechanism in conjunction with a release operation.