JP2000313261A - Longitudinal position variable device for automobile seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To vertically and compactly arrange respective structural components of an operating means and a transmission means along the side surface of a seat cushion. SOLUTION: An operating means 33 is provided with an operating lever 34 longitudinally extending along the side surface of a seat cushion 13 and supported on the seat cushion 13 so as to be vertically rotatable by a pivot shaft 35, and an operating part 37 formed on the operating lever 34. A transmission means 47 is provided with a movable body 40 supported on the seat cushion 13 so as to be longitudinally movable along the side surface of the seat cushion 13, a link 45 for connecting the movable body 40 and the operating lever 34 to each other, an interlocking arm 48 to be rotated together with a seat back 14, and an interlocking mechanism 49 for connecting the interlocking arm 48 and the movable body 40 to each other. A locking means 25 is interlocked with at least one operation out of the operation (C) to the operating part 37 and the rotation of the seat back 14 through the operating lever 34 to release locking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular seat front / rear position changing device in which the position of a seat provided on a vehicle cabin floor can be changed back and forth.

[0002]

2. Description of the Related Art An apparatus for changing the front / rear position of an automobile seat is disclosed in Japanese Patent Application Laid-Open No. 9-272366.

According to the above publication, a seat is provided on a vehicle floor by rail means so as to be movable back and forth,
The vehicle further includes a fixed rail in which the rail means is fixed to the vehicle floor, and a movable rail supported by the fixed rail so as to be movable back and forth and supporting the seat. The seat includes a seat cushion supported by the movable rail, a seat back that projects upward from a rear end side of the seat cushion to be in an upright posture, and that the seat back can rotate forward and downward. The seat back and a pivoting means for pivotally supporting the seat cushion are provided.

A locking means for locking the seat to the fixed rail at an arbitrary moving position before and after the seat and a locking means for releasing the locking by the locking means by inputting a manual operation force. And transmission means for transmitting the rotation of the seat back to the locking means and releasing the locking.

The operating means comprises an operating lever extending back and forth along the side surface of the seat cushion and pivotally supported by the seat cushion so as to be rotatable up and down by a pivot shaft, and a front end of the seat cushion. An operating section pivotally supported and connected to the front end of the operating lever so as to be interlocked with each other. On the other hand, the transmission means includes an open lever rotatably supported on a side surface of the seat cushion. The open lever is connected to a rear end of the operation lever so as to be interlocked with each other, and is connected to the seat lever. It is linked so as to be linked to the back.

When it is desired to change the seating position on the seat in the front-rear direction to a desired position, the operation unit is operated and rotated. Then, the locking by the locking means is released via the operation lever interlocked with the rotation of the operation unit, and the seat can be moved to the desired front and rear positions by the rail means, whereby the seating position is changed. It is variable.

On the other hand, when trying to get into the rear compartment located behind the seat from outside the vehicle, first, the seat back is turned forward and downward. Then
The rear compartment is widened forward.

In addition, the operation lever is interlocked with the rotation of the seat back via an open lever of the transmission means,
In the same manner as described above, the locking by the locking means is released, and the movement of the sheet is automatically enabled. Therefore, when the seat is moved forward as a whole, the rear compartment is more greatly widened toward the front. Therefore, it is possible to easily get into the rear compartment from outside the vehicle, that is,
A walk-in function is obtained.

[0009]

In the above-mentioned prior art, each component of the operating means and the transmitting means is disposed on the side surface of the seat cushion. In particular, the width of the seat cushion in the vertical direction is small. In this case, the respective components of the operation means and the transmission means are used to prevent these components from interfering with the occupant sitting on the seat cushion, and to maintain a good appearance around the seat. There is a demand for a compact arrangement in the vertical direction along the side of the cushion.

However, the open lever of the transmission means in the prior art has an upper end pivotally supported by the side surface of the seat cushion and a lower end swingable back and forth, and has a large vertical dimension. Therefore, as described above, it is not easy to arrange the respective components of the operation means and the transmission means compactly in the vertical direction along the side surface of the seat cushion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and includes a locking means for locking a seat at a desired front and rear position on a vehicle floor, and a locking means. Operating means for releasing the locking of the seat, and transmitting means for transmitting the forward and downward rotation of the seat back to the locking means side to release the locking, and When the respective components of the operating means and the transmitting means are arranged on the side surface of the seat cushion, the components can be compactly arranged in the vertical direction along the side surface of the seat cushion. As an issue.

[0012]

The vehicle seat front / rear position changing device of the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, a seat 7 is provided on the vehicle floor 2 so as to be movable back and forth by rail means 6, and the rail means 6 is fixed to the vehicle floor 2; A movable rail 11 supported on the fixed rail 10 so as to be movable back and forth and supporting the seat 7; a seat cushion 13 on which the seat 7 is supported by the movable rail 11;
The seat back 14 protrudes upward from the rear end side and is in an upright posture, and the seat back 14 and the seat cushion 13 are pivoted so that the seat back 14 can rotate (A) forward and downward. A locking means 25 for supporting the seat 7 so as to be capable of engaging and disengaging the seat 7 with the fixed rail 10; and an input of an operating force to release the locking by the locking means 25. And a transmitting means 47 for transmitting the rotation of the seat back 14 to the locking means 25 to release the locking.

The operating means 33 extends back and forth along the side surface of the seat cushion 13 and is pivotally supported by the seat cushion 13 so as to be rotatable up and down by a pivot shaft 35. A movable member 4 supported by the seat cushion 13 so that the transmission means 47 can move back and forth along the side surface of the seat cushion 13;
0, a link 45 connecting the movable body 40 and the operation lever 34, an interlocking arm 48 that rotates together with the seatback 14, an interlocking arm 48 and the movable body 4
0 and an interlocking mechanism 49 for connecting the
(C) and rotation of the seat back 14 (A)
The locking means 25 is interlocked with at least one of the operations via the operation lever 34 to release the locking.

According to a second aspect of the present invention, in addition to the first aspect, a portion 34b of the operation lever 34 extending from the pivot shaft 35 to the operating portion 37 and the operating portion 37 are connected to the pivot shaft 35. The movable body 40 is disposed below the portion 34b.

The invention according to claim 3 is the invention according to claim 1 or 2
In addition to the present invention, a cover body 59 is provided between the rail means 6 and the seat 7 to cover the rail means 6 from above.

According to a fourth aspect of the present invention, in addition to the third aspect, the seat 7 projects downward from the seat cushion 13 and has support legs 19 and 20 for supporting the seat cushion 13 on the movable rail 11. The vehicle seat front / rear position changing device provided with slits 63 and 64 formed on the cover body 59 to penetrate the support legs 19 and 20 and allow the support legs 19 and 20 to move forward and backward.

The locking means 25 and the operation lever 34 are interlocked through the slits 63 and 64.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes an automobile body, and an arrow Fr indicates the front of the automobile. The left and right described below refer to the width direction of the vehicle body 1 toward the front.

The vehicle body 1 has a vehicle floor 2 made of sheet metal, and a space inside the vehicle body 1 above the vehicle floor 2 is a vehicle room 3. In the passenger compartment 3, a seat device 5 is provided as a passenger seat. The seat device 5 includes a seat 7 supported on the vehicle cabin floor 2 by a slide-type rail means 6 so as to be movable back and forth.
The seat 7 can be seated by a seated person from the front.

The rail means 6 extends forward and backward, and a pair of left and right fixed rails 10 fastened and fixed to the vehicle cabin floor 2 by fasteners 9, and extends forward and backward and moves only to each of these fixed rails 10 forward and backward. It is provided with a pair of left and right movable rails 11 that are supported so as to support the seat 7.

The seat 7 is disposed above the left and right movable rails 11 of the rail means 6 and has a substantially horizontal posture. The seat cushion 13 projects upward from the rear end of the seat cushion 13. A seat back 14 in an upright posture, and a lower end of the seat back 14 so that the seat back 14 can move forward and downward (arrow A) and backward (inverse to A) from the upright posture toward the front and below. And a pivoting means 15 for pivoting the portion and the rear end of the seat cushion 13 to each other.

The pivot means 15 is connected to the seat back 14.
Can be held at an arbitrary angle with respect to the seat cushion 13, that is, the seat 7 is of a reclining type. Further, the seat cushion 13 is supported by the seat cushion frame 17 and the seat cushion frame 17.
And a resilient seat cushion body 18 that covers the entire body.

The seat 7 projects downward from the seat cushion frame 17 of the seat cushion 13 and a pair of left and right front support legs 1 for supporting the seat cushion 13 on each movable rail 11 of the rail means 6.
9, 19, and a pair of left and right rear support legs 20, 20. The front support legs 19, 19 are pivotally supported by pivot shafts 22 so that the lower ends thereof can be rotated back and forth by the front ends of the movable rails 11. Also, the rear support leg 2
The lower ends of the movable rails 0 and 20 are supported by being vertically connected to and separated from the rear end of each of the movable rails 11.

In all of the drawings, the seat 7 is detachably engaged with the fixed rail 10 on the vehicle cabin floor 2 at an arbitrary moving position of the seat 7 in the front-rear direction, and is fixed at that position. Stop means 25 is provided.

The locking means 25 is provided for each of the fixed rails 1.
A locking portion 26, which is a plurality of locking projections formed along the longitudinal direction (front-rear direction) of the movable rail 11, and a locking arm 27 disposed along each of the movable rails 11 and extending back and forth. The other end (front end) of each of the locking arms 27 so that one end (rear end) of the stop arm 27 is rotatable up and down.
And a pivot shaft 28 for pivotally supporting the movable rail 11 and a rotating end 27a of the locking arm 27, which is selectively engaged with one of the locking portions 26 with the rotation thereof. A locked portion 29, which is a locking hole that is detachably locked, and the locking arms 27 are elastically urged to lock the locked portion 29 to the locking portion 26 (arrows). B) A spring (not shown) is provided.

An operating means 33 is provided, which is capable of releasing the locking by the locking means 25 by inputting an external operating force.

The operating means 33 includes an operating lever 34 extending forward and backward along each of the left and right side surfaces of the seat cushion 13, and a middle portion of the operating lever 34 in the front and rear direction pivotally supported by the seat cushion frame 17. And a pivot shaft 35 for pivotally supporting the front and rear end portions of the operation lever 34 so as to be rotatable up and down, respectively, and an operation shaft formed at a rotation end portion on one side (front side) of the operation lever 34 An operation portion 37 which is a direct force input portion, an elongated hole-shaped guide hole 39 formed in the seat cushion frame 17 so as to extend forward and backward along each of the left and right side surfaces of the seat cushion 13; Seat cushion 1
A movable body 40 fitted and supported in each of the guide holes 39 so as to be able to move (slide) back and forth along the left and right side surfaces of the operation lever 3;
And an interlocking means 42 for interlocking them with each other. The operation section 37 is formed only on one side (left side) of the left and right operation levers 34, 34.

The interlocking means 42 is connected to the operation lever 34
34 from the pivot shaft 35 to the operation unit 37
b has one end pivotally supported by a pivot shaft 43 and the other end pivotally supported by the movable body 40, that is, a link 45 for connecting the operation lever 34 and the movable body 40 in an interlocked manner.
The pivot 43 is fitted in a guide hole 46 formed in the seat cushion frame 17 so as to move only in the circumferential direction of the pivot 35 of the operation lever 34.

Of the left and right operation levers 34, 34, the operation lever 34 on one side (left side) and the seat back 14 are connected so as to interlock with each other, and the rotation of the seat back 14 is controlled by the locking means 25. There is provided a transmission means 47 for transmitting to the side and releasing its locking.

The transmission means 47 includes the guide hole 39, the movable body 40, and the pivot shaft 4 which are components of the operation means 33.
3, the pivot shaft 44, the link 45, and the guide hole 46 are provided in common, and in addition to this, the seat back 1
An interlocking arm 48 that is provided on the same axis as the center of rotation of the motor 4 and rotates together with the seat back 14; 49.
The interlocking mechanism 49 includes an outer tube 50 having both ends fixed to the seat cushion frame 17;
A cable 51 is slidably fitted into the outer tube 50 and connects the interlocking arm 48 and the movable body 40 to each other.

In the above case, the seat back 14 is rotated (A) to release the locking by the locking means 25.
The tilt angle in the forward tilted position (one point, two-dot chain line in FIG. 2) is set to a predetermined value. Therefore, the moving amount of the movable body 40 required to release the locking of the locking means 25 is: The length of the interlocking arm 48 is set to a predetermined length.

The interlocking means 42 includes the left and right operation levers 3
One of the operation levers 3 (left side) among the operation levers 4 and 34
4 and a cable means 53 for connecting the movable body 40 corresponding to the operation lever 34 on the other side (right side) so as to interlock with each other.
3 is an outer tube 54 whose both ends are fixed to the seat cushion frame 17;
4 and a cable 55 which is slidably fitted to the movable member 4 and connects the movable bodies 40 and 40 to each other.

In the vertical direction, the rail means 6 and the seat 7
And a resin cover 59 that covers the rail means 6 from above in plan view as a whole and is supported by the vehicle cabin floor 2. The cover body 59 extends substantially horizontally adjacent to the lower surface of the seat cushion 13 of the seat 7 in the vertical direction.
0, and an extension plate 61 extending downward from the front edge of the cover body 60 and integrally covering the rail means 6 from the front.

Before and after the cover body 59 is made to penetrate each halfway of the support legs 19 and 20 in the vertical direction, rear slits 63 and 64 are provided. Further, a slit 65 is formed in the cover body 59 and penetrates the other end (rear side) of the turning end 34a of the operation lever 34.

When the seat 7 moves back and forth, the slits 63 to 65 are used to support the support legs 1 of the seat 7.
9 and 20, and the operation lever 34, which moves with the movement of the seat 7, is formed to be long in the front and rear so as to allow the front and rear movement of each.

In order to change the seating position of the seat 7 in the front-rear direction to an arbitrary desired position, the operation section 37 is operated to rotate upward (arrow C). Then, the portion 34b of the left operation lever 34 rotates upward together with the operation unit 37, and the left movable body 40 moves backward in conjunction with the operation unit 37 via the interlocking means 42. The right movable body 40 moves backward in conjunction with the cable means 53, and the portion 34b of the right operation lever 34 is moved to the movable body 40 via the linkage means 42.
Rotates upward in conjunction with.

Then, the portion 34 of each of the operation levers 34
b, the respective rotation end portions 34 a thereof rotate downward (arrow D), and the rotation end portions 34 of these operation levers 34.
The rotation end 27a side of each of the locking arms 27 is rotated downward (opposite of B) in conjunction with the locking arm 27 so that the locking of the locked portion 29 with the locking portion 26 is released. The locking by the locking means 25 is released (dotted line in FIGS. 1 and 4).

By releasing the locking of the locking means 25, the seat 7 can be moved to the desired front and rear positions by the rail means 6, and if the operation on the operating portion 37 is released, The rotating end 27a side of each of the locking arms 27 is rotated upward by the biasing force of the spring, and the locked portion 29 is locked by the locking portion 26 (solid line in each drawing).
The sheet 7 is fixed at that position. Thus, the seating position is made variable.

On the other hand, when trying to get on the rear compartment located behind the seat 7 from outside, first,
The seat back 14 is turned forward and downward (A) toward the lower front (dotted line in FIG. 2). Then, the rear compartment is widened toward the front.

The movable body 40 on the left side of the transmission means 47 moves rearward in conjunction with the forward rotation (A) of the seat back 14, and moves to the right side via the cable means 53 on the movable body 40. The movable body 40 moves backward in conjunction with each other, and the portion 34b of each of the operation levers 34 rotates upward (C) in conjunction with each of the movable bodies 40 via the interlocking means 42. Then, in the same manner as described above, with the upward rotation (C) of the portion 34b of each of the operation levers 34, the respective rotation end portions 34a rotate downward (D). The stop is released (dotted line in FIGS. 1 and 4). Therefore, when the seat 7 is moved forward as a whole (indicated by a three-dot chain line in FIGS. 1 and 2), the rear compartment is more greatly widened toward the front. Therefore, it is possible to easily get into the rear compartment from outside the vehicle, that is, a walk-in function is obtained.

In FIG. 6, the seat back 14 is further rotated forward (A), and the seat back 14 is superimposed on the seat cushion 13 (solid line in FIG. 6). By rotating the seat cushion 13 and the seat back 14 forward and upward about the center, the seat 7 can be placed in a compact storage position in the front and rear direction (indicated by a chain line in the figure).

According to the above configuration, the locking means 25 for locking the seat 7 to the fixed rail 10 on the passenger compartment floor 2 side at any desired front and rear positions, and the engagement by the locking means 25. Operating means 33 capable of releasing the stop;
A transmission means 47 for transmitting the forward and downward rotation of the seat 7 to the front and lower sides of the seat back 14 to the locking means 25 side so as to release the locking is provided, and a side surface of the seat cushion 13 of the seat 7 is provided. When the operation lever 34 and the movable body 40, which are components of the operation means 33 and the transmission means 47, are arranged, the operation lever 34 extends forward and backward. The movable body 40 of the transmission means 47 for interlocking the seat back 14 with each other
Can be moved back and forth, and the operation lever 34
And the vertical dimension of the moving trajectory of the movable body 40 can be kept small.

Therefore, the operating means 33 and the transmitting means 47
Since the vertical dimensions of the operation lever 34 and the movable body 40, which are the respective components of the seat cushion 13, are kept small, even if the vertical width of the seat cushion 13 is small,
The above components are compactly arranged in the vertical direction along the side surface of the seat cushion 13.

As described above, the operation lever 34 for releasing the locking by the locking means 25 is vertically rotated, whereas the rotation of the seat back 14 is controlled by the interlocking mechanism 49. The movable body 40 of the transmission means 47 which transmits to the operating lever 34 via the operating lever 34 and allows the locking by the locking means 25 to be released via the operating lever 34 moves back and forth.

Therefore, utilizing the fact that the operating directions of the operating lever 34 and the movable body 40 are different as described above, the value of the ratio between the amount of rotation of the operating lever 34 and the amount of movement of the movable body 40 is determined. The operability of the operation lever 34 is improved.

In the above case, the operation lever 34 is rotated or the seat back 14 is
When the operation lever 34 is interlocked via the movable body 9 and the movable body 40 to release the locking of the locking means 25,
Compared to the amount of operation of the interlocking mechanism 49 and the amount of movement of the movable body 40 back and forth required to release the locking of the locking means 25,
The amount of vertical rotation of the operation lever 34 may be made smaller, such as by reducing the amount of vertical rotation (string size) of the rotation end of the operation lever 34.

According to the above-described configuration, since the rotation locus of the operation lever 34 can be made compact, as described above, even if the width of the seat cushion 13 in the vertical direction is small, the operation lever 34 can be
It is possible to avoid disturbing the occupant seated on the vehicle, and to improve the degree of freedom in disposing the operation lever 34 on the side of the seat cushion 13.

In order to release the locking of the locking means 25 due to a dimensional error of the interlocking mechanism 49 of the transmission means 47, even if the amount of movement of the movable body 40 becomes slightly excessive, The rotation trajectory of the transmission means 34 is suppressed to be small, thereby avoiding any trouble in operation. Therefore, the transmission means 47 is allowed to have some errors. Work becomes easier.

Further, the interlocking arm 48 of the transmission means 47
Is provided on the same axis as the center of rotation of the seat back 14 and rotates with the seat back 14 about this axis. It is located in.

Therefore, the interlocking arm 48 is prevented from interfering with the operation lever 34 and the operation portion 37 of the operation means 33 disposed on the side of the seat cushion 13, and the arrangement of the operation means 33 is prevented. The degree of freedom is improved.

As described above, the portion 34b of the operating lever 34 from the pivot shaft 35 to the operating portion 37 is provided.
The operating part 37 is positioned above the pivot shaft 35, and the movable body 40 is disposed in front of the pivot shaft 35 and near the lower side of the portion 34b.

Here, the locking means 25 is a rail means 6
And is located below the seat 7, so that the structure of the interlocking between the locking means 25 and the operation lever 34 can be made simpler.
Is pivotally supported by the pivot shaft 35 on the lower side of the side surface of the seat cushion 13. In this case, if the operation lever 34 is simply pivoted at a low position,
The operation portion 37 formed on the operation lever 34 is largely separated downward from the occupant seated on the seat 7.
There is a possibility that the operation on the operation unit 37 becomes difficult.

Therefore, as described above, the operation lever 34
Is positioned above the pivot shaft 35, whereby the operation unit 37 comes closer to the occupant in the up-down direction, and the operation of the operation unit 37 can be easily performed. It has been.

Further, as described above, the portion 34b of the operation lever 34 from the pivot shaft 35 to the operation portion 37,
The operation unit 37 is positioned higher, and an extra space is generated below the portion 34b. The movable body 40 is provided by utilizing the surplus space. Therefore, the operation means 33 can easily operate the operation portion 37 while maintaining the position of the seat cushion 13. It is arranged compactly in the vertical direction along the side,
This is preferable in terms of appearance around the sheet 7.

As described above, the cover 59 is provided between the rail means 6 and the seat 7 and covers the rail means 6 from above.

For this reason, the rail means 6 is prevented from being easily seen in appearance, and the appearance around the seat 7 is improved.

When the cover body 59 is provided as described above, the width of the seat cushion 13 in the vertical direction is reduced by the provision of the cover body 59. Since the vertical dimension of the seat cushion 33 is kept small, the operating means 33 is
3 is arranged compactly in the vertical direction on the side surface, so that the appearance around the seat 7 is sufficiently improved.

As shown by a two-dot chain line in FIG. 4, the seat 7 has supporting legs 19 and 20 projecting downward from the seat cushion 13 to support the seat cushion 13 on the movable rail 11, and Slits 63, 64 formed in 59 to allow the support legs 19, 20 to penetrate and allow the support legs 19, 20 to move back and forth.
Is provided, the locking means 25 and the operation lever 34 are linked through the slits 63 and 64.

For this reason, since the slits 63 and 64 for penetrating the support legs 19 and 20 are used for interlocking the locking means 25 and the operation lever 34, the slit 65 is unnecessary, and the slit 65 is not necessary. The structure of the operating means 33 is further simplified, and the molding thereof is also facilitated.

Although the above description is based on the illustrated example, the interlocking mechanism 49 and the cable means 53 may be link mechanisms.
In addition, the portion 34b of the operation lever 34 is
The locking by the locking means 25 may be released by rotating the operation portion 37 downward together with the portion 34b in conjunction with the rotation end portion 27a of the lock 7.

[0063]

The effects of the present invention are as follows.

According to the first aspect of the present invention, a seat is provided on a passenger compartment floor by rail means so as to be movable back and forth, and the rail means is fixed to the passenger compartment floor, and is moved forward and backward by the fixed rail. A seat cushion that is freely supported and supports the seat, the seat being supported by the movable rail, and a seat that projects upward from a rear end side of the seat cushion to be in an upright posture. A back and pivot means for pivoting the seat back and the seat cushion so that the seat back can rotate forward and downward, and the seat is removably locked to the fixed rail. Locking means;
Operating means for inputting an operating force to release the locking by the locking means, and transmitting means for transmitting the rotation of the seat back to the locking means and releasing the locking. In the device for changing the front-rear position of the vehicle seat provided with

The operating means is formed on the operating lever which extends back and forth along the side surface of the seat cushion and is pivotally supported by the seat cushion so as to be rotatable up and down by a pivot shaft. A movable body supported by the seat cushion so that the transmission means can move back and forth along the side surface of the seat cushion; and a link connecting the movable body and the operation lever. An interlocking arm that rotates together with the seat back, and an interlocking mechanism that connects the interlocking arm and the movable body. At least one of the operation to the operation unit and the rotation of the seat back The locking means is interlocked with one operation via the operation lever to release the locking.

That is, locking means for locking the seat at any desired front and rear positions on the fixed rail, operating means for releasing the locking by the locking means, and sheet for the sheet. Transmission means for transmitting the forward and downward rotation of the back to the locking means side so as to release the locking; and providing the operating means and the respective components of the transmission means on the side surface of the seat cushion of the seat. When the operating lever and the movable body are arranged, the operating lever extends forward and backward, and the movable body of the transmission means for interlocking the operating lever and the seat back with each other, It is movable and the operation lever described above,
The vertical dimension of each of the moving trajectories and the moving trajectory can be kept small.

Accordingly, the vertical dimension of the operating lever and the movable body, which are the respective components of the operating means and the transmitting means, can be kept small. Therefore, even if the vertical dimension of the seat cushion is small, Each component is arranged compactly in the up and down direction along the side surface of the seat cushion, thereby preventing the components from obstructing a seat occupant of the seat cushion. Will be kept good.

Further, as described above, the operating lever for releasing the locking by the locking means is turned up and down, whereas the turning operation of the seat back is transmitted to the operating lever and this operating lever is operated. The movable body of the transmission means that can release the locking by the locking means via the lever moves forward and backward.

Therefore, utilizing the fact that the operating directions of the operating lever and the movable body are different as described above, the operating lever is operated to rotate, or the operating lever is interlocked with the seat back via the movable body. When trying to release the locking of the locking means, the amount of vertical movement of the operating lever is made smaller than the amount of forward and backward movement of the movable body required to release the locking of the locking means. be able to.

Accordingly, since the rotation trajectory of the operation lever can be made compact, as described above, even if the width of the seat cushion in the vertical direction is small, the operation lever does not obstruct a seated person sitting on the seat cushion. In addition, the degree of freedom in disposing the operation lever on the side of the seat cushion is improved.

In order to release the locking of the locking means due to a dimensional error of the interlocking mechanism of the transmission means, etc., even if the amount of movement of the movable body becomes slightly excessive, even if the amount of movement of the movable body is somewhat excessive, Is suppressed to a small value, and the occurrence of a trouble in operation is suppressed. Therefore, since a slight error is allowed in the transmission means, the forming and assembling work of the transmission means becomes easier.

According to a second aspect of the present invention, a portion of the operating lever from the pivot shaft to the operating portion and the operating portion are located above the pivot shaft, and the movable portion is located below the portion. The body has the following effects.

That is, since the locking means is provided for the rail means and is located below the seat, the structure for interlocking the locking means and the operating lever can be simplified. It is preferable that the operation lever is pivotally supported by the pivot shaft on a lower side of the side surface of the seat cushion. However, if the operating lever is simply pivoted at a low position in this manner, the operating portion formed on the operating lever will be largely separated downward from the occupant seated on the seat, and operation to this operating portion will not be possible. It may be difficult.

Therefore, as described above, the operating portion of the operating lever is located above the pivot shaft.
As a result, the operation unit approaches the occupant in the up-down direction, and the operation of the operation unit can be easily performed.

As described above, when the portion of the operating lever from the pivot shaft to the operating portion and the operating portion are positioned higher, an extra space is generated below the portion,
Since the movable body is provided by utilizing the surplus space, the operation means is arranged in a compact manner in the vertical direction along the side surface of the seat cushion while the operation of the operation unit is facilitated. Is established.

According to a third aspect of the present invention, a cover is provided between the rail means and the seat to cover the rail means from above.

For this reason, the rail means is prevented from being easily seen in appearance, and the appearance around the seat is improved.

When the cover is provided as described above, the width of the seat cushion in the vertical direction is reduced by the provision of the cover. This operating means can be compactly arranged in the vertical direction on the side surface of the operating means.

Therefore, the appearance around the sheet can be sufficiently improved.

According to a fourth aspect of the present invention, the seat includes a support leg for projecting downward from the seat cushion to support the seat cushion on the movable rail. The support leg is formed on the cover body and penetrates the support leg. In a vehicle seat front-rear position changing device provided with a slit that allows the support leg to move forward and backward,

The locking means and the operation lever are linked with each other through the slit.

For this reason, the slit for penetrating the support leg is used for the interlocking between the locking means and the operating lever, and a separate slit is not required for this interlocking. And the molding becomes easier.

[Brief description of the drawings]

FIG. 1 is a partially enlarged view of FIG. 2;

FIG. 2 is an overall side view of the seat device.

FIG. 3 is a perspective view of what is shown in FIG.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is a sectional view taken along line 5-5 of FIG. 2;

FIG. 6 is an explanatory diagram of the overall side operation of the seat device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Cabin floor 3 Cabin 5 Seat device 6 Rail means 7 Seat 13 Seat cushion 14 Seat back 15 Pivoting means 19, 20 Support leg 25 Locking means 33 Operating means 34 Operating lever 34b Part 35 Pivot shaft 37 Operation Part 40 movable body 42 interlocking means 47 transmission means 48 interlocking arm 49 interlocking mechanism 59 cover body 63, 64, 65 slit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Tsumura 2-1-1 Taoyuan, Ikeda-shi, Osaka Daihatsu Industry Co., Ltd. (72) Inventor Hiroyuki Suzuki 2 Kirihara-cho, Fujisawa-shi, Kanagawa Prefecture Shiroki Industry Co., Ltd. F term (reference) 3B087 BA02 BB01 BC05 BC09 BD01

Claims (4)

[Claims] 1. A seat is provided on a passenger compartment floor so as to be movable back and forth by rail means. The rail means is fixed to the passenger compartment floor and supported by the fixed rail so as to be movable back and forth. And a movable rail for supporting the seat, the seat being supported by the movable rail, a seat back projecting upward from a rear end side of the seat cushion to be in an upright posture, and Locking means for pivotally supporting the seat back and the seat cushion so that the back can rotate forward and downward, and locking means for releasably locking the seat to the fixed rail; Operating means for inputting an operating force to release the locking by the locking means;
A transmission means for transmitting the rotational movement of the seat back to the locking means side and releasing the locking thereof, wherein the operating means comprises: An operation lever pivotally supported by the seat cushion so as to extend back and forth along the side surface and be rotatable up and down by a pivot shaft, and an operation unit formed on the operation lever, wherein the transmission unit includes:
A movable body supported by the seat cushion so as to be movable back and forth along the side surface of the seat cushion;
A link that connects the movable body and the operation lever, an interlocking arm that rotates together with the seat back, and an interlocking mechanism that connects the interlocking arm and the movable body; A vehicle seat front / rear position changing device in which the locking means is interlocked with at least one of the rotations of the seat back via the operation lever and the locking by the locking means is released. 2. A part of the operation lever from the pivot shaft to the operation part and the operation part are located above the pivot shaft, and the movable body is disposed below the part. The vehicle front / rear position changing device according to claim 1. 3. The apparatus according to claim 1, further comprising a cover disposed between the rail means and the seat to cover the rail means from above. 4. The vehicle according to claim 1, further comprising: support legs for projecting the seat cushion downwardly from the seat cushion to support the seat cushion on the movable rail. The support legs are formed in the cover body and penetrate the support legs. The vehicle seat front / rear position changing device according to claim 3, wherein the locking means and the operation lever are interlocked through the slit. .