JPH10297323A - Seat device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify such a structure that it may reduce in weight, improve in assembly property and reduce in cost. SOLUTION: In a seat device for vehicle in which a seat 1 is provided regulatable to move in the longitudinal direction at a floor side through an adjuster mechanism 4, and the adjuster mechanism 4 is composed of a slide rail 6 which is provided in the longitudinal direction at the lower side of a seat cushion 2, and moves the position of the seat 1, while can maintain the seat 1 at the position after the movement; and casters 5 which are provided at the lower surface side of the seat cushion 2, and are supporting the seat 1 moved by the slide rail 6.

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 provided with a seat movable in the front-rear direction.

[0002]

2. Description of the Related Art In general, a seat mounted on an automobile or the like is provided with an adjuster mechanism for adjusting the seat back and forth, and can be moved to a position suitable for a seat occupant through the adjuster mechanism. Such an adjuster mechanism has a slide rail structure in which an upper rail and a lower rail are assembled so as to be relatively movable with respect to each other. And a lock releasing operation lever and an operation lever for unlocking.

[0003]

As described above, in the conventional adjuster mechanism for adjusting the seat position, since the slide rails are provided on the left and right pairs, the positional accuracy on both sides and the locking means are interlocked with both slide rails. Such as to be removed
In addition to the problem that the mechanism is complicated and the cost is increased, the weight is increased, which is a major obstacle in reducing the weight.

Accordingly, the present invention has been made in view of the above-mentioned background, and an object of the present invention is to provide a vehicle seat apparatus which is lightweight, has good assemblability, and can reduce cost by simplifying a mechanism. Is to provide.
Further, other objects will be clarified sequentially in the contents described below.

[0005]

In order to achieve the above object, according to the present invention, as shown in the drawings, a seat 1 is provided on a floor 20.
In the vehicle seat device provided on the side so as to be movable in the front-rear direction via the adjuster mechanism 4, the adjuster mechanism 4 is arranged in the front-rear direction on the lower surface of the seat cushion 2 to move the position of the seat 1 and A slide rail 6 that can be held at a position after the movement, and a seat cushion 2
And a caster 5 supporting the seat 1 moved by the slide rail 6.

According to this structure, since the adjuster mechanism 4 is constituted by the slide rail 6 and the casters 5, the following rationalization is achieved with respect to the conventional adjuster mechanism for moving the seat back and forth. Since the casters 5 are lighter in weight than the slide rails 6, a great reduction in weight can be achieved. Since the casters 5 are simple and inexpensive in terms of member costs, significant cost reduction is possible. In terms of mounting work to the seat 1, the slide rail 6 does not require positional accuracy with respect to the casters 5, and the like. In the case where the slide rail 6 is incorporated into the vehicle body floor 20, only the slide rail 6 side is attached to the floor 20, and it is not necessary to attach the casters 5, so that workability in a narrow cabin can be improved.

In the above-described present invention, the slide rail 6 is disposed at a substantially middle portion between the left and right of the seat cushion 2, while the caster 5 is provided at a position close to the side of the seat cushion 2. preferable. In this structure, for example, when the seat 1 is arranged relatively high with respect to the floor 20, the slide rail 6 on the seat 1 side is used.
Even if the seat 1 is attached to the floor 20 with a support, a bracket, or the like interposed, the seat 1 is easily arranged stably, and the support, the bracket, or the like is difficult to see.
In this structure, when the casters 5 are provided at left and right positions with the slide rail 6 interposed therebetween, both stability and reliability can be improved.

[0008]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, although the form described below is a preferable specific example of the present invention, various technically preferable limitations are added thereto. However, the scope of the present invention is not limited to the following description, which particularly limits the present invention. It is not limited to these forms unless otherwise stated.

FIGS. 1 and 2 show a vehicle seat device according to an embodiment of the present invention. FIG. 1 is a front view of the seat device, and FIG. 2 is a schematic perspective view of the seat device. 1 and 2, the seat 1 includes a seat cushion 2 and a seat back 3. A slide rail 6 is provided below the seat cushion 2 in the adjuster mechanism 4 at a position substantially at the center of the seat cushion 2 and extended in the front-rear direction. The casters 5 are provided at left and right positions with the rail 6 interposed therebetween. That is, the adjuster mechanism 4
Is for moving the seat 1 in the longitudinal direction of the vehicle body, and includes a main slide rail 6 and an auxiliary caster 5. Among these, the caster 5 may be a so-called free-wheel, and in this embodiment, the roller 16
, A holding member 17, and a pivot shaft 18. The roller 16 is a resin molded body, and has a shaft hole passing through the center. The holding member 17 is made of resin, has a mounting plate at the top, has a lower U-shaped cross section, and has a bearing hole at the opposite U-shaped opposing piece. The holding member 17 has a roller 16 inside the inverted U shape.
The roller 16 is rotatably mounted by inserting the shaft 18 into the bearing hole and the shaft hole to prevent both ends from falling off.

On the other hand, the slide rail 6 includes an upper rail 7A disposed on the seat cushion side and a lower rail 7B disposed on the floor side, as schematically shown in FIGS. 3 and 4, for example. Are movably combined with each other and have a lock means 8 with an operation lever 8B for locking at a position after the movement. FIG. 3 is a perspective view showing the configuration of the slide rail 6, and FIG. 4 is a sectional view taken along line AA in FIG. The upper rail 7A and the lower rail 7B are combined so as to be slidable in the longitudinal direction, and mounting brackets 9 and 10 are provided on the upper surface of the upper rail 7A and the lower surface of the lower rail 7B so as to protrude. ing. Although only the front side is shown in FIG. 3, each of the mounting brackets 9 and 10 is fixed to the front and rear portions of the rail by spot welding or the like. In addition, sheet 1
Is provided at a predetermined height on the floor, the height is determined by a mounting bracket 9 fixed to the frame (not shown) of the seat cushion 2, or the vehicle is mounted on the floor 20 (see FIG. 1). The height of the mounting bracket 10 is fixed by the two brackets 9, 10.

The locking means 8 includes a plate-shaped main body 8A having a substantially L-shaped cross section disposed so as to cover the side surface from the upper surface of the upper rail 7A, and forward from a front end face portion of a vertical plate constituting the main body 8A. It has an operation lever 8B and the like that are integrally formed to protrude. And the main body 8A is an upper rail 7A.
On the other hand, by attaching the fulcrum 11 provided on the rear end side, the front side can be moved by the operation lever 8B.
Is turned up and down via the. Further, locking holes 1 provided in the upper rail 7A and the lower rail 7B are provided at the front side of the horizontal portion constituting the main body 8A.
Locking claws 14 to be inserted into and engaged with 2, 13 are integrally formed downward. Although the upper rail 7A has one engagement hole 12, the lower rail 7B
Are provided at regular intervals in the front-rear direction, so that even if the upper rail 7A and the lower rail 7B are moved in the front-rear direction, the engagement holes corresponding to the engagement holes 12 are provided. 13 is always located, and the locking claw 14 can be engaged with the locking holes 12 and 13. The locking means 8 here has a spring 15 which is an urging means interposed between the main body 8A and the upper rail 7A.
Are constantly biased in the direction of engagement with the engagement holes 12 and 13.

In the adjuster mechanism 4 described above, the slide rail 6 is fixed to the frame (not shown) side of the seat cushion 2 by means of bolts or the like via a bracket 9 and assembled. In addition, a fixing operation is performed on the floor 20 side of the room by means of bolts or the like via the bracket 10. In this mounting state, the operation lever 8B
Is disposed in a state protruding from the lower front side of the seat cushion 2. Normally, the locking claw 14 of the locking means 8 is inserted into and engaged with the engaging holes 12 and 13, thereby locking between the upper rail 7A and the lower rail 7B. To change the front / back position of seat 1,
When the main body 8A raises the operation lever 8B against the urging pressure of the spring 15 with the fulcrum 11 as a pivot, the locking claw 14 is also lifted, and the locking claw 14 is lifted.
The upper rail 7A can be moved with respect to the lower rail 7B by disengaging from the engagement hole 13 on the B side. Furthermore,
When the lifting of the operation lever 8B is released at the position after the movement, the main body 8A is moved to the original state by the urging pressure of the spring 15, so that the locking claw 14 is moved from the locking hole 12 to the corresponding engaging hole 13 Into the lower rail 7
B and the upper rail 7A are locked, and the movement is prevented. The structure of the slide rail 6 itself may be another known structure.

The above-mentioned caster 5 is attached to a substantially middle portion in the front-rear direction at a lower surface position close to both sides of the seat cushion 2. In this case, the holding member 17 is operated to fix the mounting plate portion provided on the upper side to the frame side of the seat cushion 2 by a fixing means such as a bolt. Therefore, in terms of height, the caster 5 is mounted on the floor 20 of the vehicle body through the bracket 10 of the slide rail 6.
When installed on the upper side, the roller 16 is set so as to be in contact with the floor 20 and support the sheet 1 together with the slide rail 6, and the direction of the roller 16 is the same as the moving direction of the sheet 1. It is designed to be able to roll forward and backward.

The seat 1 configured as described above is supported by the slide rail 6 and the casters 5 constituting the adjuster mechanism 4. When the seat 1 is moved in the front-rear direction, the seat 1 can be moved by releasing the lock by the locking claw 14 via the operation lever 8B as described above. In this seat device structure, the adjuster mechanism 4 for moving and adjusting the seat 1 back and forth is composed of the structure of the single slide rail 6 and the structure of the casters 5, so that weight reduction and cost reduction are achieved. In addition to being
Since the positional accuracy between the slide rail 6 and the casters 5 is not required, the workability of assembling to the seat side can be improved. In addition, when the slide rails 6 are mounted on the vehicle body floor 20, only the slide rails 6 are mounted on the floor 20 and the casters 5 are mounted. Since there is no necessity, workability in a narrow cabin can be improved.

Although the above-described embodiment is applied to a separate type seat, the present invention is not limited to a separate type seat, but can be applied to a bench seat type seat as shown in FIG. is there. Here, in FIG. 5, components denoted by the same reference numerals as those in FIGS. 1 to 4 indicate the same components as those in FIGS. 1 to 4, and redundant description will be omitted. As described above, the point of applying the present invention to the bench seat type is that, since the seat 1 is large, the main slide rail 6 is provided substantially at the middle of the lower surface of the seat cushion 2 and the auxiliary caster 5 is mounted on the seat. It is preferable to provide two on each side of the lower surface of the cushion 2. Other structures are the same as those described above with reference to FIGS.

In recent years, many people enjoy the outdoors, and accordingly, many vehicles suitable for camping have been sold. The feature of this camping type vehicle is that the state when seated is set at a relatively high position,
Even if you sit for a long time, you are less likely to get tired. in this way,
When the seat is installed at a high position, a support base or the like may be interposed between the floor 20 and the seat 1 in order to secure an installation portion for the slide rail 6. When the present invention is applied with such specifications, for example, of the adjuster mechanism 4 that moves and adjusts the seat 1 back and forth, the slide rail 6 is interposed between the support base and the seat cushion 2,
The height of the casters 5 is ensured by increasing the length of the holding member 17.

[0017]

As described above, according to the present invention,
The adjuster mechanism that moves and adjusts the seat back and forth is made up of a slide rail structure and caster structure, thus achieving weight reduction and cost reduction compared to the conventional structure, and assembling the adjuster mechanism to the seat side. The workability and workability of assembling into the vehicle body floor can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a vehicle seat device of the present invention.

FIG. 2 is a perspective view illustrating an appearance of the sheet device.

FIG. 3 is a configuration perspective view showing a main part of an adjuster mechanism used in the seat device.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a perspective view showing another embodiment of the seat device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 2 Seat cushion 4 Seat adjuster mechanism 6 Slide rail 5 Caster 20 Floor

Claims (3)

[Claims] 1. A vehicle seat device in which a seat is provided on a floor side so as to be movable in a front-rear direction via an adjuster mechanism, wherein the adjuster mechanism is disposed in a front-rear direction on a lower surface of the seat cushion. And a caster that is provided on the lower surface side of the seat cushion and supports a seat that is moved by the slide rail. A vehicle seat device characterized by the above-mentioned. 2. The vehicle according to claim 1, wherein the slide rail is disposed at a substantially right and left middle portion of the seat cushion, and the caster is provided at a position close to a side portion of the seat cushion. Seat device. 3. The vehicle seat device according to claim 2, wherein the casters are provided at left and right positions with the slide rail interposed therebetween.