JPH078300Y2 - Vehicle seat truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle seat track in which the position of the seat can be adjusted in the front-rear direction.

(Prior Art) As one type of vehicle seat track, a lower rail fixed to a floor and a plurality of longitudinal rails provided on either one of the upper rails slidably mounted on the same rail to support the seat are provided. An engaging member having an engaging portion,
It comprises an engaged member which is provided on either of the two rails and engages with the engaging member in a disengageable manner. There is an adjustable seat track.

By the way, when a vehicle seat having such a type of seat truck is installed in a vehicle having a large door such as a two-door type vehicle, it is necessary for a person who uses the seat at a relatively forward position (small person) to get on and off. Since the space between the seat and the door is narrow, it is often the case that the seat is once moved to the rear to get off and the seat is adjusted to the original front position after getting on. Further, in the case of a seat with a walk-in mechanism, in order to make it easier for a passenger to get on and off the rear seat, the seat is moved forward and the seat is adjusted to the original rear position after getting on.

Therefore, it is preferable to eliminate the inconvenience of adjusting these seats to their original positions after boarding each time, as shown in Japanese Utility Model Laid-Open No. 1-74932, when the seat moves forward or backward. There is known one provided with a so-called fixed position memory mechanism which is always locked at a predetermined return position.

Therefore, in the seat disclosed in the above publication, a fixed position memory mechanism is provided on either one of the rails and has a third rail having a plurality of engaging portions in the longitudinal direction, and this rail has a longitudinal direction. A sliding member that is slidably mounted and has an engaged portion that engages with the engaging portion of the rail in a disengageable manner, and a rear side of the sliding member that is provided on either of the two rails. The sliding member, which is located in front of the sliding member, comes into contact with the sliding member when sliding, and restricts further sliding in the same direction, and functions as described below.

In such a configuration, the sliding member is engaged with the third rail and its sliding is regulated, and the sliding member is slidable by releasing the engagement of the both. It slides until it contacts the regulation member. When the sliding member is in contact with the regulating member, sliding on one of the upper rails is also regulated and the rail is locked in the same direction. Further, the upper rail is locked to the lower rail by the action of the lock mechanism, and its movement in the front-rear direction is restricted.

When the lock mechanism is operated in this state to release the lock of the upper rail with respect to the lower rail, the movement restriction of the upper rail in the front-rear direction is released by the lock mechanism. Therefore, the upper rail can be moved forward or backward depending on the relationship of the disposition position of the regulating member with respect to the sliding member, and thus the position of the seat can be adjusted forward or backward.
After adjusting the position, the sliding member is disengaged and slid forward or backward to abut against the regulating member, and in this state, the sliding member is engaged with the third rail.

When the occupant operates the lock mechanism to unlock the upper rail to move the seat forward or backward to facilitate the getting-off operation, the sliding member moves forward or backward from the regulating member according to the amount of movement. Separate to. For this reason,
When the occupant moves the seat backward or forward after boarding,
When the sliding member slides back to the adjustment position before getting off the vehicle, the sliding member comes into contact with the regulating member to prevent the seat from moving further.
Therefore, the seat accurately returns to the original position.

(Problems to be solved by the invention) By the way, when setting the position of the seat track, the engagement lever of the lock mechanism is first released to disengage the engaged member of the mechanism to move the seat to a desired position. It is necessary to move the movable member and then to operate the operation lever of the fixed position memory mechanism to release the engagement of the sliding member of the mechanism and slide the sliding member until it abuts against the regulating member. That is, when setting the position of the seat, it is necessary to operate the two types of operation levers and move the seat and the sliding member, respectively, which is not necessarily convenient.

Also, if you want to change the seat position after setting it,
In particular, when it is desired to set the seat to a position on the opposite side to the current position of the sliding member, first, the engagement of the sliding member is released by operating the operation lever of the fixed position memory mechanism, and then the sliding member is moved. It is necessary to slide the sheet to the desired set position direction of the seat as much as possible, and then perform the above-described seat position setting work. That is, in this case, the releasing of the sliding member and the sliding work are added to the above-described position setting work, and it cannot be said that the usability is good in this case as well.

Therefore, an object of the present invention is to address such a problem and to provide a very convenient seat track.

(Means for Solving the Problems) The present invention relates to a vehicle seat track including the above-described lock mechanism and fixed position memory mechanism, and a biasing means for biasing the sliding member of the fixed position memory mechanism toward the regulating member. And a first operation lever for releasing the engagement of the engaged member of the lock mechanism, the engagement of the engaged member and the engagement of the sliding member of the fixed position memory mechanism are interlocked and released. It is characterized in that a second operation lever is provided.

(Operation and Effect of the Invention) In the seat track having such a configuration, the seat can be set at a desired position in the front-rear direction by the operation of the lock mechanism and the fixed-position memory mechanism, and the seat moved when the passenger dismounts can be accurately moved to the original position when the passenger got on. In addition to being able to return to the above, the following operational effects are exhibited.

That is, if the first operation lever is operated, only the engagement of the engaged member of the lock mechanism can be released to move the seat in the front-rear direction. Therefore, when the passenger dismounts, the same operation lever is operated to move the seat backward. Or move it forward. Also,
By operating the second operation lever, the engagement of the engaged member of the lock mechanism and the engagement of the sliding member of the fixed position memory mechanism can be released at the same time. As a result, the seat can be moved in the front-rear direction, but at the same time, the sliding member elastically abuts on the regulating member by the biasing means, and can be slid integrally with the seat in the abutting state. Therefore, if the seat is moved to a desired position, the sliding member is slid to the corresponding position, and if the operation of the second operating lever is then released, the sliding member engages with the third rail. Then the position setting is completed.

Therefore, in the seat track, particularly when setting and changing the position of the seat, only the operation of the second operation lever and the work of moving the seat to the desired position are required, and the usability is extremely good.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show a vehicle seat track according to the present invention. The vehicle seat track is composed of a pair of seat tracks 10 and 20 for driver seats.

The right seat track 10 includes a lower rail 11a, an upper rail 11b, a first locking mechanism 10a, and a fixed-position memory mechanism 10a. The upper rail 11b slides forward and backward on a lower rail 11a fixed in parallel to the lower rail 11a fixed to the vehicle body floor. It is movably assembled. A lower arm 31 is erected on the upper rail 11b, and an upper arm is attached to a rear end portion of the lower arm 31 via a publicly known reclining adjuster (not shown) so as to be rotatable in the front-rear direction. The left seat track 20 is composed of a lower rail 21a, an upper rail 21b, and a second lock mechanism 20a. The upper rail 21b is assembled to the lower rail 21a fixed in parallel to the lower rail 11a fixed to the vehicle floor so as to be slidable in the front-rear direction. It is attached. A front bracket (not shown) and a hinge plate (not shown) are erected on the upper rail 21b. As shown in FIG. 3, the seat cushion S1 forming the seat is assembled to the lower arm 31, the front bracket, and the hinge plate on the upper rails 11b and 21b, and the seat back S2 is assembled to the upper arm and the hinge plate. There is.

The first lock mechanism 10a and the second lock mechanism 20a are interlocked with each other. The first lock mechanism 10a locks the upper rail 11b of the right seat track 10 releasably with respect to the lower rail 11a, and the second lock mechanism 20a The upper rail 21b of the left seat track 20 is releasably locked to the lower rail 21a. In the right seat track 10, a seat track handle 12 is rotatably assembled inside the upper rail 11b, and the lock lever 13 of the first lock mechanism 10a is rotatably assembled on the outer periphery of the track handle 12. ing. On the other hand, a lock plate 14 of the first lock mechanism 10a is fixed to the lower surface of the lower rail 11a, and the lock plate 14 has a large number of engagement holes 14a on its inner inclined surface. The engagement holes 14a are provided at equal intervals in the longitudinal direction of the lock plate 14, and the lock lever 13 is engaged with one of the engagement holes 14a by the urging force of a spring (not shown) as shown in FIG. However, sliding of the upper rail 11b with respect to the lower rail 11a is restricted. Further, in the left seat track 20, the operating rod 22 is rotatably assembled inside the upper rail 21b.
22 and the lock lever 23 of the second lock mechanism 20a, the first connecting arm 24, the second connecting arm 25, and the third connecting arm 26 are fixed. On the other hand, a lock plate 27 similar to the lock plate 14 of the first lock mechanism 10a is fixed to the lower surface of the lower rail 21a, and the lock lever 23 engages with one of the engaging holes 27a of the lock plate 27, Sliding of the upper rail 21b with respect to the lower rail 21a is restricted. In both of these lock mechanisms 10a and 20a, the first lock mechanism 10a
The lock lever 13 and the first connecting arm 24 of the second lock mechanism 20a are connected to each other by the first push-pull cable 32.

The fixed position memory mechanism 10b is composed of a slide rail 15, a slide block 16, a lock lever 17 and a stopper 18, as shown in FIGS. 1 to 4 and 6. The slide rail 15 is fixed to the lower surface side of the lower rail 11a via a pair of front and rear brackets 11c, and has a large number of engagement holes 15a inside the lower rail 11a.
The slide block 16 is attached to the slide rail 15 so as to be slidable in the longitudinal direction thereof.
Has a through hole 16a on its lower surface, and a protrusion 16b on the top of its side surface. The lock lever 17 integrally includes an engaged arm portion 17a and an operating arm portion 17b,
Spring 1 on the mounting bracket 16c of the slide block 16
The slide rail 1 is slidably mounted on the support pin 16e via 6d, and the engaged arm portion 17a is passed through the through hole 16a of the slide block 16 by the urging force of the spring 16d.
One of the engagement holes 15a of 5 is elastically engaged.

In the lock lever 17 of the fixed position memory mechanism 10b, one end of a frame-shaped operation arm 33 fixed to the seat track handle 12 is provided with an engaged arm portion 17a and an operating arm portion 17b.
I'm facing the gap. A fourth connecting arm 34 is fixed to the seat track handle 12, and the connecting arm 34 and the third connecting arm 26 on the operating rod 22 side are connected to each other by a wire 35. The stopper 18 is fixed to the outer side of the upper rail 11b of the seat track 10 so that the slide block 1
An elastic member 18b is provided on the slide block 16 side of the stopper body 18a so as to face the protruding portion 16b of 6. The stopper 18 is the protrusion 1 of the slide block 16 when the upper rail 11b slides.
The slide block 16 is in contact with 6b and is constantly urged toward the stopper 18 by a tension spring 16f. The wire 35 interlocks the arms 34 and 26 with each other in the tensioning direction, and disengages the arms 34 and 26 from each other in the relaxing direction. On the other hand, a side lever 36 is attached to the lower arm 31 so as to be rotatable in the front-rear direction, and the side lever 36 and the second connecting arm 25 on the operating rod 22 side are mutually connected by a second push-pull cable 37. It is connected. In the vehicle seat track, the side lever 36 corresponds to the first operation lever of the present invention, and the seat track handle 12 corresponds to the second operation lever of the present invention.

In the vehicle seat track having such a configuration, the first lock mechanism 10a is in the state where the seat is set in position.
Also, the lock levers 13 and 23 of the second lock mechanism 20a engage with the engagement holes 14a and 27a of the lock plates 14 and 27 to restrict the sliding of the upper rails 11b and 21b, and the fixed position memory mechanism 10b. The lock lever 17 of is the engagement hole 1 of the slide rail 15.
The sliding of the slide block 16 is regulated by engaging with one of 5a. Also, the slide block 16 is the upper rail 11b.
It contacts the stopper 18 on the side.

Then, the occupant seated on the seat rotates the side lever 36 in order to move the seat rearward to facilitate getting off the vehicle. This allows the second push-pull cable
37 is pulled and the second connecting arm shown in FIG. 5 and FIG.
25, the operating rod 22, and the first connecting arm 24 rotate clockwise in the drawing to disengage the lock lever 23 of the second lock mechanism 20a and pull the first push-pull cable 32 to pull the first lock mechanism. The engagement of the lock lever 13 of 10a is released. In this case, since the lock lever 13 is rotatably attached to the seat track handle 12, the track handle 12 does not rotate, and the engagement of the lock lever 17 of the fixed position memory mechanism 10b is maintained. As a result, both upper rails 11b and 21b can be slid, and the seat can be moved rearward to get off the vehicle. Further, if the vehicle is then boarded and the side lever 36 is rotated to make both upper rails 11b and 21b slidable, the seat moves by the action of the helper spring 28 until the stopper 18 contacts the slide block 16, The action of both of these 16 and 18 restores the set position.

When it is desired to change the seat setting position on the seat, the seat track handle 12 is rotated. As a result, the operating arm 33 and the fourth connecting arm 34 rotate counterclockwise in FIG. 6, and in the operating arm 33, the operating arm 17b of the lock lever 17 is pushed downward to move the lock lever 17 in the illustrated clock. Direction, the engaged arm portion 17a is disengaged, and the wire 35 is pulled in the fourth connecting arm 34 to pull the third connecting arm 26 and the operating rod 22.
Is rotated clockwise, and the engagement of the lock lever 23 is released by rotating the operating rod 22 clockwise.
The lock lever 13 is disengaged via the first connecting arm 24 and the first push-pull cable 32. As a result,
The seat is movable in the front-back direction, and the slide block 16 and the lock lever 17 are tension springs 16
While being in contact with the stopper 18 by the urging force of f, the upper rail 11b, in other words, moves in the front-rear direction together with the seat. When the seat track handle 12 is released from the turning operation after the seat is moved to the desired position, both locking mechanisms 10
The lock levers 13 and 23 of a and 20a are engaged and the lock lever 17 of the fixed position memory mechanism 10b is engaged, and the seat is set to a desired position.

As described above, according to the vehicle seat track, either one of the side lever 36 and the seat track handle 12 can be rotated when the seat is moved when the passenger gets in the vehicle or when the set position of the seat is changed. Good and therefore extremely easy to use.

Incidentally, in the case of moving the seat forward when getting off, in order to facilitate the getting on / off operation of the occupant sitting on the rear seat,
The positional relationship between the front and rear of the slide block 16 and the stopper 18 may be reversed from that in the above embodiment. Also, slide rail 1
5, the slide block 16 and the lock lever 17 may be provided on the upper rail 11b side and the stopper 18 may be provided on the lower rail 11a side, and either one of the both lock mechanisms 10a and 20a may be omitted.

[Brief description of drawings]

1 is a partially exploded perspective view of a vehicle seat track according to an embodiment of the present invention, FIG. 2 is a partially omitted perspective view of the same seat track in different directions, and FIG. 3 is equipped with the same seat track. FIG. 4 is a perspective view of the seat, FIG. 4 is an exploded perspective view of a slide block and a lock lever which constitute a fixed position memory mechanism, and FIGS. 5 and 6 are operation explanatory views of the respective mechanisms. Explanation of symbols 10, 20 …… Seat track, 10a, 20a …… Lock mechanism,
10b: Fixed position memory mechanism, 11a, 21a: Lower rail, 1
1b, 21b …… Upper rail, 12 …… Seat track handle (second operation lever), 13,17,23 …… Lock lever, 14,27 …… Lock plate, 15 …… Slide rail, 16 …… Slide block , 18 …… Stopper, 22 ……
Actuating rod, 32, 37 …… Push-pull cable, 35 ……
Wire, 36 ... Side lever (first operating lever).

Claims (1)

[Scope of utility model registration request] 1. An engagement member provided on either one of a lower rail fixed to a floor and an upper rail slidably mounted on the rail in the longitudinal direction to support a seat and having a plurality of engaging portions in the longitudinal direction. And a lock mechanism having an engaged member that is provided on either of the two rails and that engages with the engaging member in a disengageable manner, and is provided on either one of the rails in the longitudinal direction. A sliding member having a third rail having a plurality of engaging portions and a engaged portion that is slidably mounted on the rail in the longitudinal direction and engages with the engaging portion of the rail in a disengageable manner. And a restricting member that is provided on the other of the both rails and that is located behind or in front of the sliding member and that abuts when the sliding member slides to restrict further sliding in the same direction. For vehicles equipped with a fixed position memory mechanism In Totorakku, and urging means for urging the sliding member of the fixed position memory mechanism to the adjustment member-side, first to release the engagement of the engaging member of the locking mechanism
And a second operation lever for releasing the engagement of the engaged member and the engagement of the sliding member of the fixed position memory mechanism in conjunction with each other. .