JPH0512263U - Vehicle seat - Google Patents

Abstract

(57) [Summary] [Purpose] Even if an excessive load is applied to the seat back in the event of a collision, etc., the side edges of the seat back, which are rotatable and located outside the passenger compartment, are prevented as much as possible. A vehicle seat that can be used. An outer lock mechanism 60 and an inner lock mechanism 50 for holding the seat back 20 near the outside of the vehicle compartment in a standing position are provided, and the outer lock mechanism 60 is provided with a latch member 63 at one side edge portion 20a of the seat back 20, The inner lock mechanism 50 is composed of a striker 69 on the side wall of the vehicle body and the lock member 52 on the lower side of the other side edge portion 20b.
And the lock hole 43 of the pivot bracket 40.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention has a plurality of seating portions, and a plurality of seat backs divided corresponding to the respective seating portions are arranged side by side in the vehicle body direction. The present invention relates to a vehicle seat that is rotatably supported by a pivot bracket.

[0002]

[Prior Art]

 A conventional vehicle seat of this type is, for example, the one 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 sides, and each of the two divided seat backs is rotatably supported. A lower rotation restricting mechanism that restricts the rotation of the other seat back with respect to the other seat back is provided by utilizing the difference in the rotation loci of the seat backs. An upper rotation restricting mechanism that restricts the rotation by connecting one seat back to the other seat back is provided.

[0004]

[Problems to be solved by the device]

 However, in such a conventional vehicle seat, the lower rotation restricting mechanism and the upper rotation restricting mechanism that restrict the rotation of the respective seat backs are provided in one of the seat backs that are closer to the inside of the vehicle that face each other. Since it is provided at the side edge of the vehicle, even if an excessive load is applied to each seat back at the time of a collision, the rotation of the pivot point of the other side edge, which is located outside the vehicle compartment and does not have a rotation control mechanism. Cannot be prevented. Therefore, at the time of a collision, 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, the upper rotation restricting mechanism restricts the rotation of one of the seat backs to the other by coupling the seat backs to each other, so that when an excessive load is applied to both seat backs at the same time, However, 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 in view of such a conventional problem, and even if an excessive load is applied to the rear of the divided seat backs at the time of a collision or the like, the vehicle is not rotated. It is an object of the present invention 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]

[Means for Solving the Problems]

 The main points to achieve such an object are: 1 A plurality of seats, and a plurality of seat backs divided corresponding to the seats are arranged side by side in the vehicle body direction, and seats near the outside of the vehicle In a vehicle seat in which a back is rotatably supported between a standing position and a forward tilting position via a pivot bracket, the seat back outside the vehicle compartment restricts the rotation of the seat back to a standing position. And an inner lock mechanism for holding the outer lock mechanism, wherein the outer lock mechanism is an outer engagement portion provided on an upper side of one side edge portion along a 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 not disengaged, and the inner lock mechanism is provided on the other side of the seat back facing the inside of the seat back outside the passenger compartment. An inner engagement portion provided on the lower side of the edge portion, and an inner engaged portion provided on the pivot bracket that supports the lower side of the other side edge portion so that the inner engagement portion is disengaged. A vehicle seat comprising:

2. The interlocking member capable of interlocking with a lock release operation of one of the outer lock mechanism and the inner lock mechanism to perform a lock release operation of the other lock mechanism, Located in vehicle seats.

[0009]

[Action]

 When the vehicle seat is in a 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, and the seated person can lean back.

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

The outer lock mechanism in the locked state constrains the upper side of one side edge of the seat back at a distance from the pivot bracket that rotatably supports the seat back so that the seat back cannot swing. ..

On the other hand, the inner lock mechanism that cooperates with the outer lock mechanism to hold the seat back near the vehicle interior 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 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. 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 seatback, and the lower side of the other side edge close to the pivot bracket cannot be rotated. Be detained.

As described above, since the seat backs located outside the vehicle compartment that are held in the upright position have both side edge portions that are locked by the outer lock mechanism and the inner lock mechanism so that they cannot rotate, Even if an excessive load is applied to the seat back due to, for example, only one side edge portion is not greatly deformed so as to be twisted backward with respect to the other side edge portion, and the deformation of the seat back is 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 is brought into a state in which the seat back can be turned so as to tilt forward, and the seat back may be tilted forward.

If the vehicle seat is provided with an interlocking member that can perform the constraint release operation of the other lock mechanism in conjunction with the constraint release operation of one of the outer lock mechanism and the inner lock mechanism, one restraint is provided. By releasing the lock, each lock mechanism can be unlocked in synchronization.

[0017]

【Example】

 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 at a rear portion 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 is divided into a left back 20 and a right back 30 so as to correspond to the seating portion 11 for two persons. The left back 20 and the right back 30 are supported on 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 to hold the left back 20 and the right back 30 at the standing position at the side edges 20b 1 and 30b of the left back 20 and the right back 30 in the vehicle interior direction. 50 and 50a are provided, and outer side portions 20a and 30a of the left back 20 and the right back 30 in the vehicle exterior direction are similarly provided with outer members for restricting rotation and holding them in the standing position. Locking mechanisms 60, 60a are provided.

The left back 20 and the right back 30 are configured symmetrically with each other. Hereinafter, the left back 20 will be described as a representative and will be replaced with the description of the right 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 protruding from the side wall of the vehicle body is fitted, and a fan-shaped member which can be engaged with and disengaged from the striker 69 fitted into the fitting groove 61a. The latch member 63 is pivotally attached to the inside of the box 61 via a pin member 64.

The latch member 63 is urged by a spring member 65 in a direction to engage with the striker 69. The striker 69 is formed in a substantially U shape so as to maintain its strength, and is fixed to a vehicle body side wall (not shown) via a fixed bracket 68. The latch member 63 of the outer locking 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 projects upward from the upper portion of the left back 20.

One end of the interlocking member 70 is connected to the lower end of the lock knob 67 connected to the latch member 63. The interlocking member 70 includes an outer casing 71 and an inner cable 72 that is 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 locking mechanism 50 side.

The inner lock mechanism 50 is provided on the side frame 26 fixed to the lower end of the side portion 22 of the frame member 21. The side frame 26 includes a side wall portion 26a along the side portion 22 and a lock attachment portion 26b along the lower portion 24. The side wall portion 26a has a long hole 28 into which the lock member 52 is removably inserted. A pivot hole 27 into which the pivot member 45 of the pivot bracket 40 is rotatably fitted is formed.

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

The pivot bracket 40 rotatably supports the lower ends of the side edges 20b, 30b of the left back 20 and the right back 30 in the vehicle interior direction. More specifically, the pivot bracket 40 is fixed to the vehicle body floor A between the left back 20 and the right back 30, and has a mounting portion 41 bolted to the vehicle body floor A, a pedestal portion 42, and And a pivot 44.

At the front end of the side wall of the pedestal portion 42, a lock hole 43 into which the tip portion 52a of the lock member 52 is removably fitted is formed. A horizontally extending pivot member 45 is projected. 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 includes a pivot bracket 40 that rotatably supports the lower side edge portion 20b in the vehicle interior direction, and a left and right pivot bracket 40 rotatably supports the lower side edge portion 20a in the vehicle interior direction toward the vehicle body side wall. It is supported by the pivot pin 25 so that it can be tilted forward.

Next, the operation will be described. As shown in FIGS. 1 and 2, when the rear seat back 13 of 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 The seat 10 is in a normal seated state, and the seated person can lean back on the rear seat back 13.

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

The outer lock mechanism 60 in the locked state is an outer engaged portion in which a latch member 63 provided in a box body 61 which is an outer engaging portion is fitted in a fitting groove 61 a of the box body 61. The striker 69 on the side wall of the vehicle body is engaged by the biasing force of the spring member 65. As a result, the upper side of the side end edge 20a at a distance from the pivot pin 25 that rotatably supports the side edge portion 20a of the left back 20 in the vehicle exterior direction is non-pivotally restrained.

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 portion 52a of the lock member 52, which is the outer engaging portion provided on the side frame 26, passes through the elongated hole 28 by the force of the spring member 53, and the pivot support bracket 40, which is the outer engaged portion. It is fitted in the lock hole 43.

By the inner lock mechanism 50 in the locked state, the outer lock mechanism 60 is located on the opposite side of the one side edge portion 20 a of the left back 20 and the other side edge portion 20 b close to the pivot bracket 40. The lower side of the is locked so that it cannot rotate.

As described above, the left back 20 held in the upright position has the side edge portions 20a and 20b on both sides thereof non-rotatably restrained by the outer lock mechanism 60 and the inner lock mechanism 50, respectively. Therefore, 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 rearward with respect to the other side edge portion 20a. Deformation is suppressed as much as possible.

When the left back 20 of the vehicle seat 10 is rotated from the upright position to the forward tilted position, the bound states of the outer lock mechanism 60 and the inner lock mechanism 50 are released. That is, as shown in FIGS. 1 and 3, when the lock lever 67a of the outer lock mechanism 60 protruding from the upper portion of the left back 20 is pulled upward against the biasing force of the spring member 65, the latch member 63 is released. It rotates in the direction and separates from the striker 69.

In addition, the constraint release operation of the outer lock mechanism 60 that pulls up the lock lever 67 a pulls the inner cable 72 inserted into the outer casing 71 of the interlocking member 70, whereby the inner lock mechanism 50 of the inner lock mechanism 50 is pulled. The lock member 52 slides inward against the biasing force of the spring member 53, and the tip portion 52 a of the lock member 52 is disengaged from 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, 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.

Although the vehicle seat 10 according to the present embodiment includes the seating portion 11 for two persons, the inner lock mechanism 50 and the outer lock mechanism 60 according to the present embodiment have seating portions for three or more persons. It may be provided in the seat back near the outside of the vehicle in the vehicle seat provided with.

[0042]

【The invention's effect】

 According to the vehicle seat of the present invention, the outer lock mechanism and the inner lock mechanism for holding the seat back near the outside of the vehicle compartment in the upright position are provided, and the outer lock mechanism is provided on the upper side of one side edge portion of the seat back. Since the inner lock mechanism is configured to restrict rotation of the seat back and the inner lock mechanism is configured to restrict rotation of the lower side edge of the other side of the seat back, a rearward movement of the seat back is prevented in the event of a collision. Even if the load is applied, it is possible to prevent deformation of the side edge portion of the seat back, which is located near the outside of the vehicle, which is rotatable.

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

[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 embodiment of the vehicle seat according to 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 (2)

[Scope of utility model registration request] 1. A plurality of seat backs having a plurality of seating portions, which are divided corresponding to the respective seating portions, are arranged side by side in a lateral direction of a vehicle body. In a vehicle seat that is rotatably supported by a pivot bracket, the seat back near the outside of the vehicle compartment has an outer lock mechanism for restricting the rotation of the seat back and holding the seat back in an upright position. An inner lock mechanism is provided, and the outer lock mechanism disengages the outer engagement portion provided on the upper side of one side edge portion along the vehicle body side wall side of the seat back outside the vehicle interior, and the outer engagement portion. Therefore, the inner lock mechanism includes an outer engaged portion provided on the side wall of the vehicle body, and the inner lock mechanism is an inner engagement provided on a lower side of the other side edge portion of the seat back facing the inside of the vehicle that faces toward the inside of the vehicle. Part and In order toner engaging portion to disengage, vehicle seat, characterized in that it consists of an inner engaged portion and which is provided on the pivot bracket for supporting the lower side of the other side edge portion. 2. An interlocking member capable of interlocking with a lock release operation of one of the outer lock mechanism and the inner lock mechanism and interlocking with the lock release operation of the other lock mechanism. The vehicle seat described.