JPH0361129A - Seat movement adjustment device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a seat movement adjustment device.

[Conventional technology]

For example, in a seat mounted in a vehicle such as a passenger car, there is a seat movement adjustment device (+Rf) that allows the position of the seat to be adjusted back and forth according to the preference of the seated person.

Conventionally, slide rails have been widely used as this type of seat movement adjustment device.

In other words, this slide rail has a lower rail fixed to the floor side and an amber rail on which the seat is placed and fixed, and the upper rail has good sliding properties with respect to the lower rail through rollers inserted between them. It is made to be able to slide freely. Normally, a pair of these slide rails are arranged on the right side of the room, and the seat can be moved back and forth by locking the upper rail to the lower rail using a predetermined locking mechanism while the seat is moved to a desired position. It is done.

[Problems to be Solved by the Invention] However, in the case of this conventional slide rail, when the seat is moved back and forth, the lower rail protrudes from the end of the seat, which is very unsightly, and furthermore, the space for the occupant's foothold is taken up. The narrower lower rail can damage shoes and other items.

Furthermore, when looking at the side of the seat, the slide rail is completely exposed, which greatly detracts from the aesthetic appearance.

The present invention has been made in view of the above, and aims to solve the second problem by providing a seat movement adjustment device having a new structure completely different from that of a slide rail. .

[Means for Solving the Problems] In order to achieve the above-mentioned object, the device of the present invention includes a base plate (2) fixed to the floor side, an upper frame (3) on which a seat is placed and fixed, and a front There are two on the left and right at the front and rear, and the inner end is rotatably supported horizontally on the base plate (2), and the outer end is attached to the upper frame (2).
3) is connected to the amber frame (3) so as to be horizontally rotatable and horizontally movable.
Support links (4) (5) and (6) (7) that support the movement in the front-rear direction with respect to 2) and the upper frame (3) are provided between the base plate (2) and the upper frame (3) ) and the upper frame (3).
A locking mechanism (23) that locks the base plate (2) at any moving position.

(Function) In the device of the present invention configured as described above, under normal conditions, the upper frame (3) is immovably locked to the base plate (2) by the lock mechanism (23). By releasing the lock and applying force in the longitudinal direction to the upper frame (3), each support link (4), (5), (6), and (7) is rotated symmetrically. 3) That is, the seat is moved in the front and back direction relative to Hayes Play 1- (2).And when the seat is moved back and forth, a part of the rail is exposed from the edge of the seat like a conventional slide rail. It doesn't look unsightly as it won't be exposed, and there is enough space for the footing of the seated person, and the support link (4)
(5), (6), and (7) are hardly exposed on the side of the seat, so they do not spoil the aesthetic appearance.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings.

In the figure, (1) shows the seat movement adjustment device as a whole, and (2) shows the base plate (lower play 1), (
3) is the upper frame. Base plate (2)
It has a rectangular flat plate shape and is fixed to the floor side with fixing bolts (not shown) or the like. The upper frame (3) is composed of left and right frames (3a) and (3b), and a front frame (3c) and a rear frame (3d) that are horizontally suspended in the front and rear between the left and right frames (3a) and (3b). It is formed into a rectangular frame shape, and this upper frame (3)
A seat S is placed and fixed on l by a predetermined fixing means.

And this upper frame (3) is a pace brake.
(2) via a link mechanism so as to be movable in the front-back direction. In FIG. 1, the left side (the side in the direction of arrow a) is the front, and the right side is the rear.

This link mechanism is controlled by four support links (4), (5), (6) and (7) of the same length arranged symmetrically on the front and rear, two on the left and right. 4)
(5), (6), and (7) are each pivoted at one end (inside) or at the center of the base plate (2) so as to be rotatable in the horizontal direction. That is, a support base (2a) is fixed to the center of the base plate (2), and this support base (2a)
) has support shafts (8) and (9) erected at the front and rear, and the inner ends of support links (4) and (5) are fitted into the front support shaft (8), respectively. and attach the support link (
The inner ends of 6) and (7) are respectively fitted and supported by shafts. Each of the support links (4), (5), and (6) and (7) has a cylindrical portion (collar) formed at the inner end thereof, and the support shafts (8) and (9) are formed in this cylindrical portion. It is fitted and supported by a shaft.

On the other hand, each of these support links (4) (5) and (61(
7) The other ends (outer ends) are connected to the left and right sides of the upper frame (3) via movable connection mechanisms (10), respectively, so as to be rotatable in the horizontal direction and movable in the lateral direction. .

This movable connection mechanism (10) is connected to the upper frame (3).
A planar U-shaped guide plugget (11) that is fixed laterally to the front and back portions of the guide bracket (11).
The support links (4), (5) and (6) and (7) are connected to the outer ends of each support link (4), (5) and (6) (7) by means of a pivot (12). A bearing member (13) is pivotally mounted to be rotatable in the horizontal direction, and a shaft (14) is pivotally supported by the bearing member (13), and the peripheral surface of the bearing member (13) is in rolling contact with the bottom surface of the upper frame (3). I cola
(15) I am admonished by this. A guide elongated hole (lla) is laterally bored in both the front and rear side surfaces of the guide bracket (111), and the shaft (14) that pivotally supports the roller (15) on the bearing member (13) is inserted into the guide elongated hole (lla). ) are connected and assembled.

and each support link (4) (5) and (6) (7)
When the are rotated around the support shafts (8) and (9), respectively, the bearing members (13) of each movable coupling mechanism (10) move in the horizontal direction with respect to each support link. At the same time, the roller (15) rolls laterally within the guide bracket (1].), and thereby the upper frame (3)
) or base play 1- (2) is forced to move in the front and back direction.

In this example, the front support links (4) and (5)
), the support link (4) on the entry side (the support link on the right side in Fig. 2) is located on the negative side, and the support link (5) on the right side is located on the bottom side with respect to the support shaft (8). It is pivoted,
For this reason, the right support link (5) is bent in the height direction so that the inner end is low and the outer end is high, whereas the left support link (4) is formed in a straight line. It is formed and arranged approximately horizontally.

On the other hand, the rear support links (6) and (7) are located on the lower side and the right support link (7) on the upper side with respect to the support shaft (9), contrary to the TIIF part. Therefore, the left support link (6) is bent in the height direction so that the inner end is lower and the outer end is higher, whereas the right support link (6) is The link (7) is formed in a straight line and is assembled approximately horizontally.

In addition, each support link (4) (5) and (6) (7)
Reinforcing ribs (4a), (5a), (6a), and (7a) are formed on the lower surface of the upper frame, respectively, to provide longitudinal strength, thereby improving the rigidity against the load applied from the upper frame (3).

Furthermore, a projecting piece (16) that protrudes in the longitudinal direction of the support link (4), that is, in the opposite direction to the outer end, is fixed to the inner end of the front left support link (4). A tension spring (19) is stretched between the bottle (17) protruding from the tip of this protruding piece (16) and the bottle (18) protruding from the rear right support link (7). The biasing force of this tension spring (19) causes both support links (4) to
and (7) are each given a force to rotate forward, so that the upper frame (3) is always urged forward (in the direction of arrow a) with respect to the base play 1-(2).

Further, in this seat movement adjustment device (1), a guide rail (20) is provided between the base plate (2) and the upper frame (3) to regulate and guide the movement direction of the upper frame (3). .

That is, this guide rail (20) is connected to the upper frame (
3) An upper rail (
21) and a lower rail (22) fixed to the upper ends of the support shafts (8) and (9),
Jl/ (21) is formed by a long member with a U-shaped cross section that opens downward;
2) is formed of a long member with a predetermined bent shape that is slidably and tightly fitted into this upper rail (21), and the upper rail (21) is slidably guided along the lower rail (22). The upper frame (
3), the back and forth movement direction with respect to the base plate (2) is restricted to be linear.

Furthermore, in this seat movement adjustment device (1), the upper frame (3) is placed between the base play (2) and the upper frame (3).
1] Rank structure (23
) is provided.

This locking mechanism (23) is constructed as follows.

First, at the inner ends of the front right support link (5) and the rear left support link (6), there are fan-shaped lock gears (24) that rotate together around support shafts (8) and (9), respectively. )
and (25) are fixed facing each other. On the other hand, a shaft (2
6) and (27) have lock arms (2 days) and (27), respectively.
29) is rotatably supported by the lock gears (24) and (25) in the direction of engagement and disengagement.

Further, a shaft (30a) is provided upright on the support base (2a), located between the double-ended pick arms (28) and (29), and the operating play 1-(30) is mounted on this shaft (30a). is pivotably supported horizontally. This actuation plate (
30) is bored with a pair of arc-shaped cam grooves (31) and (32) whose distance from the center of rotation, that is, the axis (30a) continuously changes. (
32), the pins (33) and (34) are inserted and engaged with the lock arms (28) and (29), respectively.

With this configuration, the locking pins (33) and (34) are guided to the cam grooves (3) and (32), respectively, as the actuation plate 1- (30) rotates, thereby locking the lock arm (3). 28) and (29) are lock gears (24), respectively.
) and (25) so as to be rotated in the direction of engagement and disengagement. Also, the operating plate (30) is always rotated clockwise in the figure by the return spring (35), that is, locked.
and (25) are rotationally biased in the direction of meshing with each other.

Further, one end portion of a release wire (36) is connected to this operating play 1- (30), and the other end portion of this release wire (36) is connected to an operating lever (not shown). (30) is activated via the release wire (36) by operating the
is pulled and rotates in the counterclockwise a1 direction in the figure against the force of the return spring (35), thereby causing the lock arms (28) and (29) to respectively lock the lock gear (24).
and (25) so that it rotates in the direction in which it is removed from (25) (Fig. 4).

As is substantially clear from the above configuration, in the seat movement adjustment device (+) of this example, in the 1:9 ratio state, the lock arms (28) and (29) of the lock mechanism (23) are connected to the lock gear (24), respectively. ) and (25), the support links (5) and (6) are made immovable, and therefore the upper frame (3), that is, the seat S is in a locked state where it cannot be moved relative to the base plate (2). It is in. When the operating lever is operated to remove the long arms (28) and (29) of the lock mechanism (23) from the lock gears (24) and (25), the support links (5) and (6) are removed.
) is made rotatable, that is, the upper frame (3) is unlocked.

In this unlocked state, each support link (
4) (5), (6) and (7) are rotated symmetrically, so that the upper frame (3) is attached to the base plate (
2) in the front-back direction (see Figure 5). After the upper frame (3), that is, the seat has been moved to the desired longitudinal movement position, the lock arm (2) of the lock mechanism (23) is released by releasing the operating lever.
8) and (29) are lock gears (24) and (25), respectively.
), the upper frame (3) is locked again at that position, and the seat S is thereby adjusted fore-and-aft movement.

In addition, in this adjustment operation, in this example device, when the upper frame (3) is unlocked, the tension splitter (1) is
The upper frame (3) is automatically moved forward by the biasing force 9), so that the seated person can easily move and adjust the seat while remaining seated.

That is, in general, when the seat is seated, it is easy to move the seat backwards, but it is difficult to move it forward; however, in this example, the upper frame (3) is moved by the tension spring (19).
is biased forward, so that the seat S
The desired movement position can be easily set by simply pushing the seat rearward, and therefore the movement adjustment operation of the seat can be performed easily.

As detailed above, the seat movement adjustment device (1) of this example
According to this method, the seat S can be quickly adjusted to a desired longitudinal movement position. Furthermore, when the seat S is moved back and forth, the problems that occur with the conventional slide rails described above do not occur.

That is, when the seat S is moved forward or backward, the seat S
The hairspray 1-(2) protrudes from the end of the seat and is exposed. However, since the hairspray 1-(2) is just a flat plate, it is not as unsightly as a slide rail, and it also protects the seated person ( In particular, there is sufficient space for footholds (especially for rear seat occupants), so there is no risk of damaging shoes, etc. Further, each of the support links (4), (5), and (6), and (7) is arranged on the inner side of the device and is hardly exposed to the side of the seat, so that the appearance does not deteriorate.

Hereinafter, one embodiment of the present invention has been described, but it goes without saying that the present invention is not limited to the configuration of this embodiment and can be modified in various ways.

〔Effect of the invention〕

According to the seat movement adjustment device of the present invention as described below-1-,
This eliminates the unsightly appearance when moving the seat back and forth, provides sufficient footing space for the occupants, and eliminates the risk of damaging shoes, etc., and the link members are hardly exposed on the side of the seat. It has various practical effects that conventional slide rails do not have, such as not detracting from the aesthetic appearance of the seat.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the device of the present invention, Fig. 2 is a partially cutaway front view of the same, Fig. 3 is a partially cutaway side view of the same, Fig. 4 is the operation of the locking mechanism] FIG. 5 is an explanatory diagram of the longitudinal movement axis (10) of the embodiment device. In the figure, (2) is the base plate, (3) is the upper frame 11, (41 (5) and (6), (7) is the support link,
(20) is a guide rail, and (23) is a lock mechanism. Agent Hidemori Matsukuma ■ YoshitoshikitIJ Kinsuke No. 5 = Power Theory 11 Diagram

Claims (1)

[Scope of Claims] A base plate fixed to the floor side, an upper frame on which the seat is placed and fixed, and two frames arranged on the left and right at the front and rear, the inner ends of which rotate horizontally to the base plate. a link member which is freely pivoted and whose outer end is connected to the upper frame so as to be rotatable in the horizontal direction and movable in the lateral direction, so as to support the upper frame so as to be movable in the front-rear direction with respect to the base plate; , a guide member provided between the base plate and the upper frame and guiding the upper frame to move linearly back and forth; and a locking mechanism that locks the upper frame at an arbitrary movement position with respect to the base plate; A seat movement adjustment device comprising: