JPH01226448A - Collapsable seat - Google Patents

Abstract

PURPOSE:To improve controllability of release of lock by a method wherein a slide lock is released in a position between the seat cushion of a collapsable seat, slidably mounted to a car body, and a slide rock in linkage with standing- upright rotation of a seat cushion from a slider. CONSTITUTION:By inclining a knob 91 for folding in a way to lift up the knob in a seat set state of a foldable seat A, a seat back 2 and a seat lock 6 are unlocked from each other. When the lock is unlocked, the seat back 2 is caused to fall down onto a seat cushion 1 for folding. By stand-upright rotation of the collapsable seat A around a rotary shaft 15 in a folded state, an interlocking shaft 82 is rotated against a spring 89 through a wire 84 of a first interlocking mechanism 8. Thus, a release lever 71 of a slide lock 7 is rotated through an interlocking rod 86, a latch 72 is unlocked from a lock tooth to release a slide mechanism 4 from lock.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a technique for unlocking a slide lock of a folding seat that is installed in an automobile or the like and that is slidably provided with respect to the vehicle body.

(Prior Art) Conventionally, a folding sheet equipped with a sliding mechanism is known, for example, as described in Japanese Patent Application Laid-Open No. 60-244634.

This conventional folding seat is a folding seat in which a seat pack is foldably provided at the rear end of the seat cushion, and the seat cushion can be locked and unlocked with respect to a slider that can slide on the slide rail of the vehicle body. A 10th lock member and a 20th lock member capable of locking and unlocking the slider with respect to the slide rail are provided, and further, the 20th lock member operates in conjunction with the unlocking operation of the 10th lock member. A connecting member was provided to perform this.

That is, when folding and standing up a folding seat, after folding the seat back against the seat cushion,
The lock release lever is operated to release the lock to release the tenth hook member. Then, the operating force was transmitted to the 20th lock member via the connecting member, and the 20th lock release member was also unlocked at the same time, and the folding sheet was moved forward on the slide rail. .

(Problem to be Solved by the Invention) However, in the conventional folding sheet as described above, by unlocking the lock release lever of the tenth hook member, the tenth hook member and the twentieth hook member are separated. Since both of the locks were to be unlocked, there was a problem in that the operating force for the lock release lever was large (and the operability was poor).

Furthermore, if another locking device, for example, a reclining device, is to be unlocked at the same time, there is a problem in that even greater operating force is required.

The purpose of this study is to improve the operability of unlocking a folding seat.

(Means for Solving the Problems) In order to achieve the above object, in the present invention, a slider is provided so as to be slidable in the longitudinal direction with respect to a slide guide member fixed to a vehicle body, and supported by the slider, Further, a seat cushion is pivotally attached to the slider so that it can stand up and rotate about its front end, a seat back is foldably provided at the rear end of the seat cushion, and the seat cushion is disposed between the seat cushion and the slider. A seat lock for locking and unlocking the slider is provided between the slider and the slide guide member,
In the configuration provided with a slide lock for locking and unlocking the slider with respect to the slide guide member,
An interlocking mechanism is provided between the slide lock and the seat cushion to unlock the slide lock in conjunction with the upright rotation of the seat cushion relative to the slider.

(Function) When the folding seat configured as described above is folded, stood up, and slid forward, for example, when exiting or getting on the seat from the rear seat of the folding seat, In this case, a folding operation is performed to fold the seat back onto the seat cushion, and a standing rotation operation is performed to rotate the seat cushion together with the seat back in the folded state to an upright state.

In the present invention, an interlocking mechanism is provided between the seat cushion and the slide lock, and when the above-mentioned upright rotation operation of the seat back is performed, the slide lock is unlocked in conjunction with this, and this folding mechanism is provided. Tatami and folding seats in an upright position can be slid forward relative to the vehicle body.

Therefore, before raising the folded seat, it is only necessary to unlock the seat lock, which requires less operating force and is easy to operate.

Additionally, as mentioned above, the slide lock is unlocked using the operating force of the seatback's upright rotation, so it is easy to apply the lever principle to unlock with less operating force. It is.

In other words, the front end of the seat cushion is pivoted,
When rotating the seat cushion to stand up, hold the rear end of the seat cushion and stand it up. Therefore, a long lever ratio can be obtained, and the closer the manual part of the interlocking mechanism is to the front end of the seat cushion, the less operating force is required for interlocking.

In addition, even if the reclining device is unlocked at the same time in conjunction with the seat lock unlock operation, for example to fold the seat back, the operation force required to unlock these two locks is sufficient. The required operating force is not particularly large, and the operability is good.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the configuration of the embodiment will be explained.

FIG. 2 is an overall perspective view showing a folding seat A according to an embodiment of the present invention, and l in FIG. 1 indicates a seat cushion. This seat cushion l serves as a seating area for the folding seat A, and a seat back 2 is provided at the rear end so that it can be folded forward, and a slide mechanism 4 is installed on the lower surface between it and the vehicle floor 3 on the left and right sides. They are provided in pairs.

The seat back 2 serves as a backrest portion of the folding seat A, and its lower and side surfaces are pivotally connected to a hinge bracket 11 fixed to the rear and side surfaces of the seat cushion 1, and its lower and other side surfaces are connected to the rear and other sides of the seat cushion l. When the locking tooth 51 that is connected to the side surface of the reclining device 5 and serves as a locking device for the reclining device 5 is removed, it is urged by a spring (not shown) and folded forward onto the seat cushion 1. (See Figure 3 (b)).

Further, when the seat back 2 is pushed backwards against the spring with the locking teeth 51 removed, the reclining device 5 will fall backwards, and when the reclining device 5 has fallen to a desired angle, the locking teeth 5 will be pressed again.
This is a conventionally known method in which the seatback 2 is held at that angle when the seatback 1 is locked.

The locking teeth 51 of the reclining device 5 are connected to a reclining lever 52 provided on the hinge bracket 11.
By pulling the reclining lever 52, the lock 5t is released and the reclining device 5 is unlocked.

The slide mechanism 4 includes a slide rail 41, which is a slide guide member fixed to the vehicle body floor 3 and extending in the front-rear direction, and a slider 42, which is slidably fitted to the slide rail 41. . A slider I11 bracket 43 is attached to the front end of the slider 42.
is provided, and for this slider side bracket 43,
A seat bracket 12 provided on the lower surface of the front end of the seat cushion 1 is rotatably attached by a rotation shaft 15, whereby the seat cushion l is attached to the slider 42.
It is supported so that it can stand up and rotate.

Further, the rear end portion of one slider 42 and the rear end side portion of the seat cushion l are connected via a seat lock 6. Further, a rubber member 44 is attached to the rear end of the other slider 42, and on this rubber member 44, a foldable rear leg 3 is placed on the other side of the rear end of the seat cushion 1. Supported.

As shown in FIG. 3(d), this rear leg 13 and one of the slider side brackets 43 are connected to each other by an interlocking rod 14 as an interlocking member so that they can be folded up when the seat cushion (2) is raised up. connected.

Further, as shown in FIG. 1, a slide lock 7 is provided between the slide rail 4I and the slider 42. This slide lock 7 has a release lever 71 attached along the side surface of the slider 42, this release lever 71 is rotatably supported by the slider 42, and furthermore, a latch 72 is provided protruding from this release lever 71. When the latch 72 engages with engagement teeth (not shown) formed along the slide rail 41, the sliding of the slider 42 with respect to the slide rail 41 is locked, and when the release lever 71 rotates, the latch 72 is locked. 72 comes off from the locking teeth, the lock is released and the slider 42 can slide forward and backward on the slide rail 41.

The slide mechanism 4 is provided with a spring 45 between the front end of the slide rail 41 and the rear end of the slider 42, and when the slide lock 7 is unlocked, the tensile force of the spring 45 is Slider 4
2 is urged to move to the sliding front end position.

Further, a first interlocking mechanism 8 is provided between the slide lock 7 and the seat cushion 1. That is, an interlocking shaft 82 is rotatably attached to a slider-side bracket 43 provided on the slider 42, and a first interlocking arm 83 and a second interlocking arm 85 are attached to one end of the interlocking shaft 82.
is fixed. This first interlocking arm 83 and the rotation shaft 15 of the seat bracket 12 provided on the seat cushion I
is connected to the vicinity of 1 by a wire 84, so that when the seat cushion 1 is raised and rotated, the interlocking shaft 82 rotates as the seat bracket l2 rotates.

Further, one end of an interlocking rod 86 is attached to the second interlocking arm 85, and the other end of this interlocking rod 86 is attached via an elongated hole 88 to an interlocking plate 87 protruding from the release lever 71. When the interlocking shaft 82 is rotated as described above, the slide lock 7 is unlocked (the release lever 71 is rotated).

The elongated hole 88 is provided to prevent the operating force from being transmitted to the interlocking shaft 82 side when the release lever 71 is rotated to release the lock. A torsion spring 89 is fitted into the interlocking shaft 82 and biases the interlocking arm 85 and the like against the slider side bracket 43 so as to return to the original position (the position shown in the figure). A torsion spring 73 is fitted onto the release lever 71 and is provided between the release lever 71 and the slider 42 to urge the release lever 71 to normally hold the latch 72 in the locked state engaged with the engagement teeth. There is.

Furthermore, in this embodiment, a second interlocking mechanism 9 is provided for unlocking the reclining device 5 and the seat lock 6 at the same time. This second interlocking mechanism 9 is composed of a folding knob 91 and release wires 92 and 93, and the folding knob 91 is provided on the side surface of the seat cushion 2 so as to be movable in the vertical direction. There is.

Then, the folding knob 91 and the locking claw 51 of the reclining device 5 are connected to the release wire 92 so that the reclining device 5i3 and the seat lock 6 can be unlocked by tilting the folding knob 91 upward. The folding knob 91 and the release arm 61 of the seat lock 6 are connected by a release wire 93.

This seat lock 6 has a striker and a catcher (not shown), the striker is fixed on the slider 42, the catcher is attached to the lower surface of the seat cushion 1, and the catcher is connected to the release arm 61. When the seat cushion l is returned to the sitting state, the catcher engages with the striker, and when the folding knob 91 is operated, the release wire 9
3. The catcher is removed from the striker via the release arm 61 and the lock is released. In addition, in this part, there is a positioning non-support column 62 (
(detailed diagram omitted) is provided.

Next, the operation of this embodiment will be explained.

The procedure for folding the folding sheet A of this embodiment, standing it up, and sliding it to the front end position will be explained.

First, the sheet set state of folding sheet A (Fig. 3 (a)
) to pull up the folding knob 91 and tilt it upward. As a result, the locking teeth 51 of the reclining device 5 are disengaged and the seat back 2 is unlocked, and at the same time, the release arm 61 of the seat lock 6 is operated in the release direction.

The seat lock 6 is unlocked.

When the lock is released in this way, fold the seat back 2 forward onto the seat cushion l (Fig. 3 (b)), and then, in this folded state, fold the seat back 2 over the seat cushion l.
If the (folding seat A) is stood up and rotated around the rotation axis 15 (Fig. 3 (c)), this seat cushion 1
The wire 8 of the first interlocking mechanism 8
4, the interlocking shaft 82 is rotated against the torsion spring 89, and the rotation of the interlocking shaft 82 rotates the release lever 71 of the slide lock 7 via the interlocking rod 86, and the latch provided thereon is rotated. 72 and locking teeth (not shown)
is released and the slide lock 7 of the slide mechanism 4 is unlocked, and at the same time, the folded sheet A is pulled by the spring 45 and slid to the front end position of the slide, resulting in the state shown in FIG. 3 (d). . When only the seat back 2 is folded forward and the back side of the seat back 2 is used as a storage space or a table, the reclining lever 5
2 to unlock the locking teeth 51 of the reclining device 5 via the release lever 53. As a result, the seat back 2 is pushed forward onto the seat cushion l by being biased by a spring (not shown).

Further, in this embodiment, the rear legs 13 are folded in conjunction with the upright rotation of the seat cushion 1.

Although the embodiment of the present invention has been described above with reference to the drawings, the specific configuration is not limited to this embodiment. For example, the interlocking member in the interlocking device may be a rod other than a wire, or the interlocking member may be a rod. One end of the second
It may be connected to an interlocking arm, and in this case, the first interlocking arm can be omitted.

(Effects of the Invention) - As explained above, according to the present invention, the slide lock is unlocked in conjunction with the operation of raising and rotating the folded sheet, so it is similar to the conventional method.

There is no need to link it to the unlocking operation of the seat lock on the seat cushion (this reduces the operating force and improves operability).

Furthermore, even if an interlocking mechanism is provided that simultaneously unlocks the seat lock and other locking devices, such as a reclining device, the operating force is the same as in the past, with only the operating force needed to unlock the two locking devices. (The operation force can be reduced while increasing the number of interlocking parts, and the effect of improving the folding operability of the folding sheet as a whole can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing essential parts of a folding sheet according to an embodiment of the present invention, FIG. 2 is an overall perspective view showing a folding sheet according to an embodiment, and FIG. 3 is a diagram showing when the folding sheet according to an embodiment is folded. It is an explanatory diagram showing the operation process of A. - Folding seat - Seat cushion 2... Seat back 3 - Vehicle floor floor... Seat lock 7... Slide lock 8... First interlocking mechanism 41 - Slide rail (slide guide Parts) 42・
- Slider utility model registration applicant Nissan Shatai Co., Ltd. A... Folding seat - Seat cushion 2... Seat pack death - Body floor 6... Seat back γ... Slide lock 8... No. 1 Interlocking machine side 41...Slide rail (slide guide member) 42
...Slider Figure 2

Claims (1)

[Scope of Claims] 1) A slider is provided so as to be slidable in the front and rear directions with respect to a slide guide member fixed to the vehicle body, and is supported by the slider and can stand up and rotate about its front end with respect to the slider. A seat cushion is pivotably attached to the seat cushion, a seat back is foldably provided at the rear end of the seat cushion, and a seat lock is provided between the seat cushion and the slider for locking and unlocking the seat cushion with respect to the slider. A slide lock for locking and unlocking the slider with respect to the slide guide member is provided between the slider and the slide guide member, and a slide lock is provided between the slide lock and the seat cushion to prevent the seat cushion from rising and rotating relative to the slider. A folding seat characterized by being provided with an interlocking mechanism that unlocks a slide lock in conjunction with the .