JP4005817B2 - Seat walk-in slider - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat walk-in slider.
[0002]
[Prior art]
Conventionally, for example, a seat back is supported by an automobile seat cushion so as to be able to tilt forward and backward, and an upper channel fixed to the seat cushion side is slidably fitted back and forth to a lower channel fixed to the floor side. There has been proposed a seat slider in which a lock plate provided so as to be swingable outside the channel is engaged with a lock portion provided in the lower channel so that the seat is locked at a predetermined slide position. .
[0003]
Further, by operating the operation means (for example, lever operation, pedal operation, forward tilting operation of the seat back, etc.), the lock plate is unlocked and rocked, and the seat cushion is slid forward together with the seat back so that the rear seat Seat walk-in sliders have also been proposed that make it easier for passengers to get on and off.
[0004]
By the way, in the conventional walk-in slider, an interlocking plate portion extending upward and interlocking with the operation means is integrally provided on the upper portion of the release plate extending downward and capable of unlocking and swinging the lock plate. The release plate is disposed on the inner surface side of the side frame of the seat cushion.
[0005]
[Problems to be solved by the invention]
For this reason, when it is desired to reduce the height of the seat cushion, if the S spring supporting the cushion pad is locked at a lower position on the inner surface side of the side frame of the seat cushion, the interlocking plate portion of the release plate interferes with the S spring. Therefore, there is a problem that it is difficult to reduce the height of the seat cushion.
[0006]
The present invention has been made to solve the above-described conventional problems, and an object thereof is to provide a seat walk-in slider capable of reducing the height of a seat cushion by devising the structure of a release plate. It is what.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is such that the seat back is supported by the seat cushion so as to be able to tilt forward and backward, and the upper channel fixed to the seat cushion side is slidable back and forth freely to the lower channel fixed to the floor side. In a seat slider in which a seat is locked at a predetermined sliding position by engaging a lock plate that is fitted and swingably provided in an upper channel with a lock portion provided in a lower channel. ,
A release plate is disposed on the inner surface side of the side frame of the seat cushion and extends downward to unlock the lock plate. The release plate extends upward on the outer surface side of the side frame. The present invention provides a walk-in slider for a seat, characterized in that an interlocking plate interlocking with the means is disposed, and the interlocking plate and the release plate are connected by a connecting member.
[0008]
According to the present invention, the release plate is disposed on the inner surface side of the side frame, the interlocking plate is disposed on the outer surface side of the side frame, and the interlocking plate and the release plate are connected by the connecting member, so that the cushion pad is supported. Even if the S spring to be engaged is locked at a low position on the inner surface side of the side frame of the seat cushion, the interlocking plate does not interfere with the S spring, so that the height of the seat cushion can be reduced.
[0009]
According to a second aspect of the present invention, the connecting member includes a bush fixed to the side frame and a shaft that is rotatably supported by the bush and penetrates the inside and outside of the side frame, and is provided at the inner end of the shaft. The release plate is fixed, and the interlocking plate is fixed to the outer end portion of the shaft.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
As shown in FIG. 1 and FIG. 6A, an automobile seat 1 is composed of a seat cushion 2 and a seat back 3, and the seat back 3 is supported by the seat cushion 2 so as to tilt forward and backward by a reclining shaft 4. Yes.
[0012]
A pair of left and right lower channels 6 extending in the front-rear direction are fixed to the upper surface of the floor 5, and are extended in the front-rear direction on the lower surface of the seat cushion 2 so as to be slidable back and forth to the lower channel 6. A pair of left and right upper channels 7 to be fitted to each other is fixed, and the lower channel 6 and the upper channel 7 constitute a slider.
[0013]
As shown in FIG. 6B, the sliders (6, 7) form a large space S behind the seat back 3 by sliding the seat cushion 2 together with the seat back 3 tilted forward. Thus, it functions as a walk-in slider that makes it easier for passengers in the back seat to get on and off.
[0014]
As shown in FIGS. 2 and 3, the lower channel 6 is bent into a substantially U shape when viewed from the front, and both end portions 6a are bent inward. Further, the upper channel 7 is bent into a substantially inverted U shape when viewed from the front, and both end portions 7a are bent outward. Then, by fitting the both end portions 7a of the upper channel 7 under the both end portions 6a of the lower channel 6, the upper channel 7 is fitted and supported by the lower channel 6 so as to be slidable back and forth. A roller, a ball, or the like is interposed between the lower channel 6 and the upper channel 7 in order to make the slide back and forth smoothly.
[0015]
On the lower edges of both end portions 6a of the lower channel 6, serrated lock portions 6b are formed at a constant pitch in the length direction.
[0016]
A lock plate 8 extending in the length direction is accommodated in the front side of the upper channel 7, and the lock plate 8 is supported at both ends by both side walls of the upper channel 7 in the middle portion in the length direction. The pin 9 is supported so that it can swing up and down.
[0017]
The front end 8a of the lock plate 8 protrudes forward from the front end of the upper channel 7, and the front end 8a can be manually swung up and down. A lock hole 8c is formed in the rear portion 8b of the lock plate 8 so that the lock portion 6b of the lower channel 6 can be engaged (locked) from below. The lock plate 8 is provided with a spring (not shown) that oscillates and urges the lock plate 8 in the lock direction in which the lock hole 8 c engages with the lock portion 6 b of the lower channel 6.
[0018]
Therefore, when the front end portion 8a of the lock plate 8 is manually lifted, the rear portion 8b swings in the unlocking direction (downward), and the lock hole 8c is detached from the lock portion 6b of the lower channel 6 and unlocked. Therefore, the seat cushion 2 can be slid in the front-rear direction in this state. When the hand is released from the front end portion 8a of the lock plate 8 at a predetermined slide position, the rear portion 8b swings in the locking direction (upward) by the urging force of the spring, and the lock hole 8c becomes the lock portion 6b of the lower channel 6. The seat cushion 2 can be locked at a predetermined sliding position.
[0019]
As shown in FIGS. 1 and 3, a cushion frame 11 of the seat cushion 2 is fixed to the upper part of the upper channel 7, and the cushion frame 11 is located on both sides of the upper channel 7 and rises upward. A side frame 11a is provided, and both end portions of the S spring 13 that supports the cushion pad 12 are locked to a launch portion 11b formed at a low position on the inner surface side of both side frames 11a.
[0020]
An inward bushing 15 is caulked and fixed to the inner surface of the side frame 11a at a position slightly lower than the S spring 13 and corresponding to the rear portion 8b of the lock plate 8. A shaft 16 penetrating into and out of the frame 11a is rotatably supported.
[0021]
An upper end portion 17b of the release plate 17 that extends downward and passes through a long hole 7c in the upper wall 7b of the upper channel 7 and a lower end portion 17a of the lock plate 8 faces the rear portion 8b of the lock plate 8 is provided at the inner end portion of the shaft 16. Is fixed by a washer 18a and a screw 18b. A lower end portion 19a of an interlocking plate 19 extending upward is fixed to the outer end portion of the shaft 16 by welding.
[0022]
The upper end portion 19b of the interlocking plate 19 is connected by a pin 20a to an interlocking wire 20 that activates the interlocking plate 19 by operating the operating means (for example, lever operation, pedal operation, forward tilting operation of the seat back, etc.). .
[0023]
Between the rear part of the upper channel 7 and the front part of the floor 5, a spring 21 for urging the seat cushion 2 in the forward sliding direction is stretched.
[0024]
With the above configuration, when the front end portion 8a of the lock plate 8 is manually lifted, the rear portion 8b swings downward in the unlocking direction, and the lock hole 8c is detached from the lock portion 6b of the lower channel 6 to be unlocked. In this state, the seat cushion 2 can be slid in the front-rear direction.
[0025]
When the hand is released from the front end portion 8a of the lock plate 8 at a predetermined slide position, the rear portion 8b swings in the locking direction (upward) by the urging force of the spring, and the lock hole 8c becomes the lock portion 6b of the lower channel 6. The seat cushion 2 can be locked at a predetermined slide position.
[0026]
On the other hand, when the operating means is operated, the interlocking plate 19 is swung back through the connecting wire 20, the release plate 17 is swung down through the shaft 16, and the rear portion 8b of the lock plate 8 is pushed down to lock the lock plate. 8 is swung in the unlocking direction (downward), and the lock hole 8c is detached from the lock portion 6b of the lower channel 6 and unlocked.
[0027]
As a result, the seat cushion 2 is slid forward to the foremost slide position by the urging force of the spring 21, and a large space S is formed behind the seat back 3, so that the passenger in the rear seat can easily move up and down. .
[0028]
In the above configuration, the release plate 17 is arranged on the inner surface side of the side frame 11a, the interlocking plate 19 is disposed on the outer surface side of the side frame 11a, and the interlocking plate 19 and the release plate 17 are connected by the shaft (connecting member) 16. Since it is connected, even if the S spring 13 supporting the cushion pad 12 is locked to a low position on the inner surface side of the side frame 11a of the seat cushion 2, the interlocking plate 19 does not interfere with the S spring 13, so the seat cushion height It is possible to reduce the thickness.
[0029]
In particular, in the embodiment shown in FIG. 3, since the load sensor 22 for detecting the load of the seated person is arranged between the floor 5 and the upper channel 7, the release inside the side frame 11a as in the prior art is provided. When the interlocking plate portion 19 ′ extending upward is integrally provided on the upper portion of the plate 17, the height H ′ of the S spring 13 ′, that is, the height of the seat cushion, corresponding to the height of the load sensor 22. However, when the release plate 17 is provided inside the side frame 11a and the interlocking plate 19 is provided outside the side frame 11a as in the present embodiment, the interlocking plate 19 does not interfere with the S spring 13. Therefore, the height H of the S spring 13, that is, the height of the seat cushion can be lowered by the height of the interlocking plate 19.
[0030]
In the above embodiment, the release plate 17 and the interlocking plate 19 are separately connected by the shaft 16. However, the interlocking plate portion that bends the upper part of the release plate 17 outwardly and extends upward at the outer end thereof. It is also possible to provide 19 integrally.
[0031]
【The invention's effect】
As is clear from the above description, the present invention is arranged such that the release plate is disposed on the inner surface side of the side frame, the interlocking plate is disposed on the outer surface side of the side frame, and the interlocking plate and the release plate are connected by a connecting member. Since it is connected, even if the S spring supporting the cushion pad is locked to a low position on the inner surface side of the side frame of the seat cushion, the interlocking plate does not interfere with the S spring, so the seat cushion height can be lowered. It becomes possible.
[Brief description of the drawings]
FIG. 1 is a side view of a walk-in slider of a seat according to the present invention.
FIG. 2 is an exploded perspective view of a slider.
FIG. 3 is a front sectional view of a main part of the slider.
4A and 4B show the operation of the release plate, the interlocking plate, and the lock plate. FIG. 4A is a side view when the lock is swung, and FIG.
FIG. 5 is an exploded perspective view of a release plate, an interlocking plate, and a shaft.
6A and 6B are seats, in which FIG. 6A is a side view at normal time, and FIG. 6B is a side view at walk-in.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat 2 Seat cushion 3 Seat back 5 Floor 6 Lower channel 7 Upper channel 8 Lock plate 12 Cushion pad 13 S spring 15 Bush 16 Shaft (connection member)
17 Release plate 19 Interlocking plate

Claims (2)

The seat back is supported by the seat cushion so that it can be tilted forward and backward, and the upper channel fixed to the seat cushion side is fitted to the lower channel fixed to the floor side so as to be slidable forward and backward, and can swing to the upper channel. In the seat slider in which the seat is locked at a predetermined slide position by engaging the provided lock plate with the lock portion provided in the lower channel,
A release plate is disposed on the inner surface side of the side frame of the seat cushion and extends downward to unlock the lock plate. The release plate extends upward on the outer surface side of the side frame. A walk-in slider for a seat, characterized in that an interlocking plate interlocking with the means is disposed, and the interlocking plate and the release plate are connected by a connecting member. The connecting member has a bush fixed to the side frame and a shaft that is rotatably supported by the bush and penetrates the inside and outside of the side frame, and the release plate is fixed to the inner end of the shaft, The seat walk-in slider according to claim 1, wherein the interlocking plate is fixed to an outer end portion of the shaft.

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