JPS6058048B2 - car seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile seat, and more particularly to an automobile seat whose seat back can be tilted forward with respect to the seat bottom, and in which the forward-tilted seat back is stored forward together with the seat bottom. It is about improvement.

Taking into consideration the versatility of the car's uses, the seats installed in automobiles, mainly called one-box cars, are designed so that they can be folded and stored when carrying a large amount of luggage. It is formed.

In such a case, not only should the seat back, which serves as the backrest, be tilted forward onto the seat bottom (seating area), but the seat bottom supporting the seat back that has been tilted forward should be spring-raised forward along with the seat back. For example, more space is secured behind the stowed seats. Automobile seats in which the seat bottom is lifted up and stowed forward have been widely used in practical use. However, in the case of conventional car seats with spring-loaded seat bottoms, when storing the seat, the seat back lock, which releasably locks the seat back to the seat bottom, must be released, and the seat bottom must be attached to the vehicle body. The seat cannot be stowed unless the seat bottom lock, which is removably latched to the floor, is released. Because two unlock operations are required in this way, the conventional system
The operation of retracting the single-bottom flip-up seat has become extremely troublesome. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a seatback gate-lifting type automobile seat in which the seatback can be unlocked and the seat bottom can be unlocked in one operation. It is something to do.

The automobile seat of the present invention includes a seat bottom that is rotatable around a horizontal axis that is substantially parallel to the floor, a seat back that is attached to the seat bottom so as to be tiltable forward, a striker that is fixed to the floor, and the seat. a seat bottom lock that detachably hooks the seat bottom to the floor, the hook member being attached to the bottom and engaging the striker; and a latching hook that detachably hooks the seat back to the seat bottom. a seat backlock having a member, an operating lever, and operating the hook member and the latching member in conjunction with the movement of the operating lever;
It consists of an interlocking member that releases the seat bottom lock and seat back lock. Since the automobile seat of the present invention is provided with the interlocking member that releases both the seat back lock and the seat bottom lock in conjunction with the movement of the operating lever as described above, when the seat bottom lock is released, The seat backlock is also automatically released, eliminating the need for an operation to release the seat backlock.

If the seat bottom lock and seat back lock are released at the same time, you can lift the seat bottom and then fold the seat back forward, or conversely, you can fold the seat back and then lift the seat bottom. You can even lift the seat bottom while folding the seat back. Therefore, this seat can be easily and reliably stored even by a person who is not accustomed to storing the seat. Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an automobile seat according to one embodiment of the present invention.

The seat of this embodiment is used, for example, as a rear seat of a one-box car. As with conventional seats of this type, it has a seat back 101, a seat bottom 102,
An upper bracket 103 that is attached to the seat bottom 102 and supports the seat back 101, a support 6 that rotatably supports the seat bottom 102 and a pivot shaft 5 parallel to the floor 4, and The seat bottom 102 has a hook piece 109 that detachably hooks the seat bottom 102 to a U-shaped striker 108 erected on the upper surface of the tire house 107 that forms the seat.
As shown in FIG. 2A, the operating lever 109c and the hook member 109b are integrated, and when the operating lever 19c is lowered, it rotates clockwise in the figure around the pin 109'', and the hook The member 109b is the striker 10
Hook it to 8. The seat back 101 is supported by an upper bracket 103 so as to be rotatable about a support shaft 110, and when the seat is used, a lock pin 111 is a latching member supported within the upper bracket 103. (not shown in FIG. 1) and is fixed to the upper bracket 103. Similar to the conventional spring-loaded seat, when the lock pin 111 is removed from the latching member, the seat back 101 is attached to the support shaft 11.
0, and can be completely tilted forward relative to the seat bottom 102. Therefore, the hook member 109
b from the striker 108, rotate the seat bottom 102 forward about the pivot shaft 5, and remove the seat back 101.
When the seat is folded forward, the seat goes through state A shown by the two-dot chain line in FIG. 1, and is finally stored in state B. The above functions are also provided in conventional spring-loaded seats. However, in the seat of this embodiment, when the hook member 109b is removed from the striker 108, the lock pin 111 locks the upper bracket 103. It is designed to automatically come off from the component. A structure for realizing such an operation will be described in detail below. Figure 2A shows the seat back 101 and seat bottom 10 of the seat of this embodiment.
This is an enlarged view of the joint portion of No. 2.

As shown in the figure, an upper bracket 103 is rotatably supported by a lower bracket 116 fixed to the seat bottom 102 about a shaft 115. A pin 119 is provided in the upper bracket 103, and a hook (latching member) 120 that can rotate around the pin 119 is pivotally supported. hook 12
0 is biased clockwise in the figure with the pin 119 as the center by a spring 126 hooked on the pin 119. Between this hook 120 and the hook piece 109, a rod (interlocking member) 1 is rotatably supported on a shaft 115 that is common to the upper bracket 103.
23 are arranged. Hereinafter, the operation of the sheet having the above structure will be explained in detail.

When using the seat, the hook piece 109 of the seat bottom 102 is attached to the tire house 10 as shown in FIG. 2A.
The seat bottom 102 is hung by a striker 108 fixed to the seat bottom 7, and the seat bottom 102 is maintained in a state substantially parallel to the floor. At this time, the rod 123 assumes the posture shown in the figure, and does not prevent the hook 120 from rotating clockwise in the figure. The hook 12 is therefore biased by the spring 126.
0 is hooked to the lock pin 111 of the seat back 101,
Seat back 101 and upper bracket 103 are fixed. When storing the seat forward, the operation lever 10
9c is lifted upwards, thereby hook member 10
The locked state between the striker 9b and the striker 108 is released.

When the operating lever 109c is operated in this manner, the lower part of the rod 123 is pushed by the convex portion 109a that forms a part of the operating lever 109c, and rotates about the shaft 115 in the clockwise direction in the figure. Move to the position shown in the diagram. When the rod 123 rotates as described above, the hook 120 is pushed to the upper part of the rod 123 and rotates counterclockwise in the figure about the pin 119 against the biasing force of the spring 126. By rotating in this manner, the hook 120 is disengaged from the lock pin 111 of the seat back 101. hook 120
By releasing the latched state between the seat back 101 and the lock pin 111, the seat back 101 can now rotate relative to the upper bracket 103 around the support shaft 110.
As shown by the two-dot chain line in FIG. 4B, the seat bottom 10
It is also possible to fall completely forward compared to 2. After storing the seat, when returning the seat to the use state, the seat bottom 102 is returned to the state shown in FIG. 2A, or
While being returned to the state shown in Figure A, the seat back 101 is first returned to the position shown in Figure 2A with respect to the upper bracket 103. Seat bottom 102 is the second
After being returned to the state shown in Figure A, the operating lever 109c is
When the hook member 109b is pushed down around the pin 109'' so as to hook on the striker 108, the hook piece 10
The convex portion 109a of No. 9 retreats in the direction away from the rod 123. Accordingly, the hook 120 rotates clockwise in the figure around the pin 119 while pushing the rod 123 due to the biasing force of the spring 126, and engages with the lock pin 111. In the seat of the embodiment described above, when the seat is stored,
Hook piece 10 that hooks the seat bottom 102 and the floor
9 to release the latch, the seat back 10
1 and the upper bracket 103 is automatically released, making it easier to store the seat.

Moreover, since the above-mentioned two latching releases are performed at the same time, either the folding of the seat back 101 or the rotation of the seat bottom 102 may be performed first, or they may be performed simultaneously. Therefore, even a person who is not accustomed to storing the seat can easily and reliably store the seat. In the embodiment described above, the rod 123 is used as an interlocking member that interlocks the hook 120 as a latching member with the operating lever 109c, but this interlocking member may also include a rod 123 that is slidable inside the outer tube. An inner wire is housed in the inner wire, and both ends of this wire are connected to the operating lever 109c and the hook 12, respectively.
It is also possible to use a cable or the like connected to 0.

As explained in detail above, in the automobile seat of the present invention, when the seat bottom and the floor are released from the seat, the seat back and the seat bottom are automatically released from the seat.

Therefore, there is no need to perform an operation to release the engagement between the seat back and the seat bottom, and the seat can be stored with a one-touch operation. Moreover, since the above-mentioned two latching operations are performed simultaneously in the automobile seat of the present invention, there is no need for rotating the seat bottom and folding the seat back in a particular order, and anyone can easily store the seat. Become what you can.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an automobile seat according to an embodiment of the present invention, and FIGS. 2A and 2B show the main parts of the seat shown in FIG. 1 in a state when the seat bottom is locked and when the seat bottom is unlocked. FIG. 101... Seat back, 102...
Seat bottom, 103... Upper bracket, 5... Pivot shaft, 108... Striker, 109b... Hook member, 109c...
...Operation lever, 110...Spindle, 111...
... song pin, 116 ... lower bracket,
120...Hook (latching member), . 126・
... Spring, 123 ... Rod (interlocking member).

Claims (1)

[Scope of Claims] 1. A seat bottom rotatable around a horizontal axis substantially parallel to the floor, a seat back attached to the seat bottom so as to be tiltable forward, a striker fixed to the floor, and the seat bottom rotatable around a horizontal axis substantially parallel to the floor; a seat bottom lock, which includes a hook member attached to the seat bottom and engages with the striker, and releasably locks the seat bottom to the floor;
a seat back lock having a latching member that releasably latches the seat back to the seat bottom; a control lever; and the hook member and the latching member being operated in conjunction with the movement of the operating lever to secure the seat. An automobile seat characterized by having an interlocking member for releasing a bottom lock and a seat back lock. 2. The automobile seat according to claim 1, wherein the hook member of the seat bottom lock and the operating lever are constituted by an integrated hook piece.