JPH08175248A - Seat device for vehicle - Google Patents

Abstract

PURPOSE: To lock a slider automatically when a seat back is converted to a table, by providing a slide lock connecting and disconnecting means to slide lock a seat, by converting the seat back to a table, as well as releasing the slide lock of the seat at the position the seat back is inclined maximum to the front side. CONSTITUTION: When a seat back 4a is converted to a table from the forefront inclined position of the seat back 4a, the first rear seat 4 is slided and positioned, and after that, the operation lever 46 of a table forming mechanism 12 is rotated counterclockwise against the energizing force of a spring 50. As a result, the engagement of the tip of a lock plate 44, and the projection 38a of a back plate 38 is released. Since a hinge bracket 40 is to be rotated counterclockwise together with the seat back 4a, the rear side of the seat back 4a is made flat, and it can be used as a table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat device, and more particularly, to a one-box vehicle or the like having three rows of seats in the front-rear direction of a vehicle so that the seat of the second row can be slidable for getting on and off. The present invention relates to a vehicle seat device that is configured and is capable of forming a seat back into a table.

[0002]

2. Description of the Related Art Recently, so-called one-box vehicles, which can be used for various purposes, have been attracting attention, and in such one-box vehicles, various devices have been devised so that the interior of the vehicle can be effectively used.

For example, a long slide rail is extended from the front end to the rear end of the rear side space, and the first and second rear seats are slidably and lockably supported on the slide rail so that the rear seat can be folded. It has been proposed that the seat can be set at an arbitrary position when it is housed in a large cargo space to create a large luggage space, or when it is fully flattened or made into a table, and the usefulness is improved.

By the way, the structure of the seatback of the first rear seat that can be made into a table is roughly classified into a structure in which the seatback can be made into a table without tilting forward and a structure in which the seatback can be made into a table after tilting forward. It

[0005]

In the case of a structure in which the seat back is tilted forward and the table is formed, tilting the seat back moves the kick plate swingably attached to the tilt center of the seat back and slides it. The wire connected to the lock mechanism is pulled and the slide lock is released. Normally, it is almost unlikely to drive the vehicle in this state, but when the hinge bracket to which the seat back is attached is locked off to form a table, the user does not feel uncomfortable when the vehicle is driven.

However, when the vehicle is run while the occupant is seated on the second rear seat and the slider of the first rear seat is locked off, the first rear seat slides rearward and seats on the second rear seat. There is a risk that the legs of the occupant are caught.

In view of the above problems, the present invention is a novel vehicle in which the slider is automatically locked when the seat back is made into a table by tilting the seat back forward and locking the hinge bracket off. It is intended to provide a seat device for use.

[0008]

In order to achieve the above object, a vehicle seat device according to the present invention has a seat reclining mechanism and a seat back table forming mechanism, and tilts the seat back forward. The slide lock engagement / disengagement means for slidingly locking the seat is provided by releasing the slide lock of the seat at the open position and by making the seat back into a table.

The slide lock engaging / disengaging means is preferably composed of a kick plate swingably attached to the tilt center of the seat back and a link swingably attached to the back plate to which the seat back is attached. .

[0010]

When the seat back of the vehicle seat device configured as described above is made into a table, when the seat back is tilted forward, the slide lock of the seat is released, and when the seat back is completely made into a table, the seat is released. Since the slide lock is automatically performed, the seat does not slide backward even when the vehicle is running.

If the slide lock engaging / disengaging means is composed of a kick plate swingably attached to the tilt center of the seat back and a link swingably attached to the back plate, the forward tilting operation of the seat back is performed. Also, the slide lock mechanism automatically engages and disengages in conjunction with the table forming operation by the rotation of the seat back.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle seat device according to the present invention will be described below in detail with reference to specific examples shown in the drawings. FIG. 1 shows a one-box vehicle. A pair of left and right long slide rails 2 are extended in the vehicle front-rear direction on the rear compartment floor of the one-box vehicle.
A first rear seat 4 and a second rear seat 6 are slidably supported by a slider 8.

Further, the vehicle seat device according to the present invention is incorporated in the first rear seat 4, and when getting on and off the second rear seat 6, as shown in FIG. 2, the first rear seat slide-locked. 4 seat back 4a
The slide lock is released by inclining forward and the slide lock is automatically made when the table is formed at an arbitrary position.

In FIG. 2, (a) shows the slide-locked first rear seat 4, (b) shows the seat back 4a of the first rear seat 4 tilted forward, and (c) shows the seat of the first rear seat 4. The back 4a is shown as a table, and in the state (c), the slider 8 of the first rear seat 4 is automatically locked.

FIG. 3 shows a seat reclining mechanism 10 and a table forming mechanism 12 provided in a vehicle seat device according to the present invention. The state of FIG. 3 corresponds to the state of FIG. 2 (a). is there.

The seat reclining mechanism 10 is disposed on the cushion bracket 14 to which the seat cushion 4b is attached, and is operated by the front operating lever 16 or the rear operating lever 18. The cushion bracket 14 includes a sector gear 20 and a kick plate 22.
Is pivotably or swingably mounted about the tilting central shaft 24 of the seat back 4a, and a lock gear 26 meshing with the sector gear 20 is pivotally mounted via a pin 28. Also, the front operation lever 1
6 is biased in the direction of arrow A by a spring 32, and the lock gear 26 pressed by a cam 30 that rotates integrally with the front operating lever 16 is normally meshed with the sector gear 20. The kick plate 22 is
It is connected to a slide lock mechanism (not shown) via a walk-in cable 34, one end of which is locked to the locking pin 22a.

The front operating lever 16 and the rear operating lever 18 are connected via a link 36. One end of the link 36 is swingably attached to the front operating lever 16, while the other end is long. A hole 36a is bored, and the pin 18 planted in the rear operation lever 18 is bored in the long hole 36a.
a is allowed to play.

A back plate 38 is fixed to the upper part of the sector gear 20.
The hinge bracket 40 of the table forming mechanism 12 is rotatably attached to the table 8 via a rotation shaft 42, and the seat back 4a is attached to the hinge bracket 40.

A lock plate 44 is further swingably attached to the hinge bracket 40 via a pin 45, and the tip end of the lock plate 44 is formed at the upper end of the back plate 38 in the state of FIG. 2 (a). Protruding part 38
engaged with a. In the vicinity of the tip of the lock plate 44, a pin 48 that is loosely inserted into a long hole 46a formed in the operation lever 46 is planted. By operating the operation lever 46, the lock plate 44 and the back plate 38 are
It is possible to release the engagement with the protruding portion 38a.
The operating lever 46 is biased in the direction of arrow B by a spring 50.

A pin 52 is planted in front of the hinge bracket 40 in FIG.
Is rotatably attached to the back plate 38 via a pin 54 and is in contact with the upper end of a link 56 biased in the direction of arrow C.

The operation of the seat device according to the present invention having the above structure will be described. In the normal seated state shown in FIG. 2A, the sector gear 20 and the lock gear 26 mesh with each other, and the seat back 4a is held at a predetermined inclination angle. If you want to change the tilt angle of the seat back 4a,
When the front operating lever 16 is lifted up against the biasing force of the spring 32, the cam 30 is integrated with the front operating lever 16.
Rotates. As a result, the pressing of the lock gear 26 by the cam 30 is released, and the engagement between the lock gear 26 and the sector gear 20 is released, so that the seat back 4a is released.
Can be appropriately tilted.

When the adjustment of the inclination angle of the seat back 4a is completed, the lock gear 26 and the sector gear 20 are re-engaged by releasing the hand from the front operating lever 16, and the inclination angle of the seat back 4a is maintained in that state.

On the other hand, when getting on and off the second rear seat 6, it is necessary to slide the first rear seat 4 forward after the seat back 4a of the first rear seat 4 is tilted forward.
In this case, by operating the rear operation lever 18,
The cam 30 is also interlocked via the link 36, and the lock gear 26
Since the meshing between the sector gear 20 and the sector gear 20 is released, the seat back 4a can be tilted forward. Seat back 4
When a is tilted to the frontmost tilt position, as shown in FIG. 4, the lower end of the link 56 abuts on the front protruding portion 22b of the kick plate 22 and presses the protruding portion 22b downward. As a result, the kick plate 22 rotates counterclockwise and the walk-in cable 34 is pulled backward, so that the slide lock is released and the first rear seat 4 can be slid forward. The rear operation lever 1
Since the pin 18a of No. 8 is loosely inserted into the long hole 36a of the link 36, the slide lock is not released even if the front operation lever 16 is operated.

Further, when the seat back 4a is made into a table from the foremost tilted position of the seat back 4a shown in FIG. 4, after the first rear seat 4 is slid and positioned, the operation lever 46 of the table forming mechanism 12 is spring-loaded. When it is rotated counterclockwise against the biasing force of 50, the tip of the lock plate 44 and the protruding portion 3 of the back plate 38 are
Since the engagement with 8a is released and the hinge bracket 40 rotates counterclockwise together with the seat back 4a, the back surface of the seat back 4a becomes flat and can be used as a table as shown in FIG. it can.

When the seat back 4a is formed into a table, the upper end of the link 56 is moved rearward by the pin 52 of the hinge bracket 40 as shown in FIG. The engagement of the projecting portion 22b of the plate 22 is released, and the kick plate 22 returns to the position shown in FIG. As a result, the slider 8 is automatically locked, and the first rear seat 4 does not slide backward even when the vehicle runs.

[0026]

When the seat back of the first rear seat is made into a table, if the seat back is tilted forward,
When the slide lock of the rear seat is released and the seat back is made into a table, the first rear seat is automatically slide-locked, so that the first rear seat slides backward even if the driver carelessly drives the vehicle. Therefore, there is no concern that the legs of the occupant seated on the second rear seat will be pinched by the first rear seat.

With a simple construction in which the link swingably attached to the back plate is engaged with and disengaged from the kick plate, in conjunction with the forward tilting operation of the seat back and the table forming operation by the rotation of the seat back, The slide lock mechanism can be automatically engaged and disengaged.

[Brief description of drawings]

FIG. 1 is a side view of a one-box car including a seat device according to the present invention.

FIG. 2 (a) is a schematic side view of the seat device according to the present invention in a normal seated state, FIG. 2 (b) is a schematic side view showing a state in which the seat back is tilted to the forward most tilted position, and FIG. 4] is a schematic side view showing a state in which a seat back is made into a table.

FIG. 3 is a side view corresponding to FIG. 2A of a seat reclining mechanism and a table forming mechanism provided in the seat device.

FIG. 4 is a schematic side view corresponding to FIG. 2B of the seat reclining mechanism and the table forming mechanism, showing only the main part of the present invention.

FIG. 5 is a schematic side view corresponding to FIG. 2C of the seat reclining mechanism and the table forming mechanism, showing only the main part of the present invention.

[Explanation of symbols]

 4 1st rear seat 4a seat back 6 2nd rear seat 8 slider 10 seat reclining mechanism 12 table forming mechanism 14 cushion bracket 20 sector gear 22 kick plate 22a locking pin 22b projecting portion 24 tilting central shaft 26 lock gear 30 cam 34 walk-in cable 38 Back plate 40 Hinge bracket 44 Lock plate 52 Pin 56 Link

Claims (2)

[Claims] 1. A seat reclining mechanism and a table-making mechanism for a seat back, wherein the slide lock of the seat is released at a position where the seat back is tilted to the front, and the seat back is made into a table, whereby the seat is made into a table. A vehicle seat device having a slide lock engaging / disengaging means for slidingly locking the vehicle. 2. The slide lock engaging / disengaging means is composed of a kick plate swingably attached to a tilt center of the seat back and a link swingably attached to a back plate to which the seat back is attached. The vehicle seat device according to claim 1.