JPS5822373B2 - Reclining seat slide couch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slide device for a seat track in a reclining seat, and the present invention relates to a slide device for a seat track in a reclining seat. By simply raising the seat back and sliding the seat cushion backwards, the seat cushion can be automatically locked in a preset position (the position of an average seat cushion where a normal adult can sit comfortably). While the scales are moving backwards, the seat cushion can remain locked in any position forward of the predetermined position, and can be freely released from the locked state by operating the adjustment bundle for position adjustment. The purpose of the present invention is to provide a sliding device for a reclining seat that has a simple structure and is free from malfunctions.

Conventionally, this type of reclining seat walk-in device, in the case of two-door cars, does not raise the seat back when the seat back is folded down to allow rear seat passengers to get in and out, and the front seat cushion is moved forward once. Since the seat is locked in that position, the front seat occupant must sit in the seat and then slide the seat rearward while operating the adjustment bundle to lock it in any desired position.

In addition, in order to eliminate this drawback, a device has been proposed in which the seat cushion position is set at the beginning by the memory plate, and the seat cushion is locked at the initially set position when the seat cushion is moved back. It has the disadvantage that it is complicated and prone to malfunction.

The present invention provides a reclining seat sliding device that eliminates the various drawbacks of conventional reclining seat sliding devices using a simple mechanism.

Hereinafter, the present invention will be described in detail based on the embodiments shown in FIGS. 1 and 7.

The seat track for moving the reclining seat has the same structure as a normal one, in which an upper rail 2 to which a seat cushion frame is fixed is slidably mounted on a lower rail 1 fixed to the vehicle body.

A lock plate 4 is fixed to the lower part of the lower rail 1 along its longitudinal direction, and a plurality of lock grooves 5 are formed in the edge 3 of the lock plate 4 at appropriate intervals.

A memory plate 6 is fixed to the side surface of the Mataroa rail 1 opposite to the protruding side of the lock plate 4, which is arranged substantially parallel to the side surface and extends to the rear of the seat track, and the upper end of the memory plate 6 is connected to the upper rail. It protrudes upward from the top surface of.

The side end 7 of the memory plate 60 on the front side of the vehicle body is arranged at a position where the seat cushion is locked at a predetermined position by a mechanism to be described later.

A handle bracket 8 is attached to one side of the upper rail (the protruding side of the lock plate), which is formed by facing a pair of L-shaped frames 8a and 8b arranged at an appropriate interval. An adjustment handle 10 for adjusting the seat position is rotatably supported on the handle bracket 8 through holes 9a and 9b formed in each of the L-shaped frames 8a and 8b.

A lock member 11 is rotatably supported on the adjustment handle 1'0, and the lock member 11 is always urged by a torsion spring 12 to rotate in the direction of the lock plate.

Further, a lock-open plate 13 is fixed to the adjustment handle 10 adjacent to the rear of the lock member 11, and the lock-open plate 13 rotates together with the adjustment handle 10.

The lock member 11 and lock open plate 13 are
L-shaped frames 8a and B forming the handle bracket 8
It is located between b.

The lock member 11 has a generally mouth-shaped cross section, and has left and right side parts 11a and 11b that are supported by the adjustment handle 10.
Support holes 14a and 14b are formed, and a first retaining piece 16 that projects downward (toward the lock plate) and a second engaging piece 17 that projects upward are formed in the center. has been done.

The first engagement piece 16 engages and disengages from the lock groove 5 formed in the lock plate 4, and the second engagement piece 1
Reference numeral 7 is for engaging and disengaging a part of a stop lever which will be described later.

The lock open plate 13 should be supported and fixed to the adjustment handle 10 substantially in the middle (a hole 18 is bored therein, the lower part is bent toward the lock member 11 side, and the first retainer of the lock member 11 is Third retaining piece 19 that engages with mating piece 16
is formed, and a fourth retaining piece 20 that engages with a part of a stop lever, which will be described later, is formed on the upper part.

A stop lever 22 is attached to the upper surface of the upper rail 2 via a stop lever bracket 21 so as to be able to rotate up to a pin 23, and the stop lever 22 is moved back counterclockwise in the drawing by a tension spring 24. energized.

The stop lever 22 has first, second, and third arms 25, 26, and 27 extending in three directions.
A hook portion 28 is formed at the front end of the arm 25 on the front side of the seat track, and the outer edge of the hook portion 28 is formed as a slope 29.

Further, the second arm 26 has a tip thereof protruding outward from the memory plate 6, and has a hook portion 30 for hooking the tension spring 24.

The stop lever 22 is configured such that the first arm 25 is configured such that when the lock member 11 rotates in the direction of arrow A, the second retaining piece 17 engages with the hook portion 28 of the first arm 25. and the second arm 26 is located at a portion facing the side end 7 of the memory plate 6,
Further, the third arm 27 is connected to the first arm 25 and the second arm 27.
The arm 26 is formed closer to the rear of the vehicle body, and is supported by the lever bracket 21 so as to be located at the same position as the side surface of the upper rail 2 on the lock plate 4 side.

The hook portion 28 of the first arm 25 engages with the second engagement piece 17 of the locking member 11 during walk-in, and
The arm 27 engages with the fourth engagement piece 20 of the lock-open plate 13 when the adjustment knob 10 is rotated.

A control cable 31 consisting of an inner cable and an outer cable and connected to the seat back is fixed to the lower part of the lock member 11 via a mounting member. As a result, the torsion spring 120 is rotated in the direction of arrow A against the elastic force.

Next, the operation of the first invention having the above configuration will be explained.

What is shown in FIGS. 1 and 2 is a state in which the seat is locked in a preset position, and the locking member 11
The first retaining piece 16 engages with the lock groove 5 of the lock plate 4, thereby making it impossible for the seat to slide in the front-rear direction.

From this state, when the rear seat occupant folds the seat back forward in preparation for getting on and off, the situation shown in Figures 3 and 4 (
Operate.

That is, in conjunction with the forward tilting operation of the seat back, the locking member 11 is rotated in the direction of arrow A about the adjustment bundle 10 by the action of the control cable 310.

Due to the above operation, the first engagement piece 16 of the lock member 11 and the lock groove 5 are disengaged, and the second engagement piece 17 engages the hook portion formed on the first arm 25 of the upper stop lever 22. 28, and the first engagement piece 16 and the lock groove 5 are maintained out of engagement.

Thus, the upper rail 2 is slid forward by a normal helper spring, and passengers can easily get on and off the rear seat.

The engagement between the hook portion 28 and the second engagement piece 17 is as follows.
After the second engagement piece 17 presses the slope 29 on the outer edge of the hook part 28 and rotates the stop lever 22 slightly clockwise, the second retaining piece 17 is positioned on the hook part 28. Then, the stop lever 22 is activated by the tension spring 24.
This is done by returning the dial counterclockwise.

After the rear seat occupant has finished getting on and off, when the front seat back is raised and the seat cushion is slid rearward, the second arm 26 of the stop lever 22 collides with the side edge I of the memory plate 6, causing the stop lever to close. 22 is rotated clockwise, the engagement between the hook portion 28 and the second engagement piece 17 is released, and the lock member 11 is rotated in the direction of the lock plate 4 by the bias of the torsion spring 12. 10th engagement piece 16 of lock member 11
is engaged with the lock groove 5.

The above-mentioned operation automatically locks the seat cushion at a predetermined position stored in the memory plate in advance.

In addition, when the seat back is raised and the cushion is slid rearward as described above, if you want to lock it in front of the specified position, you can adjust it by operating the adjustment handle. 20 engages with the third arm 27 of the stop lever 22 and rotates the stop lever 22 in a clockwise direction, thereby releasing the engagement between the locking member and the stop lever and allowing the stop lever to be locked at any position.

Note that by raising the seat back, the tensile force of the control cable against the locking member 11 is eliminated.

Next, when moving the seat from the locked state shown in FIG. 1 to another desired position, by rotating the adjustment bundle 10 in the direction of the arrow,
Adjustment) - The lock open plate 13 fixed to the handle 10 is rotated in the same direction, and the third retaining piece of the lock open plate 13 engages with the first retaining piece 16 of the lock member 11. As a result, the lock member 11 is also rotated in the direction of arrow A, and the first retaining piece 1 is moved from the lock groove 5.
6 is disengaged, and the fourth engagement piece 20 of the lock open plate 13 engages the third engagement piece 20 of the stop lever 22.
When the stop lever 22 is engaged with the arm 21 and rotated clockwise, the seat can be slid back and forth.

Note that during the above operation, the second arm 26 of the stop lever 22 moves to a position where it does not engage with the side end I of the memory plate even if the upper rail 2 slides rearward, as shown in FIG.

By the above operation, when the seat reaches the desired position, if the adjustment bundle 10 is rotated to the original state in the direction opposite to the arrow opening, the lock open plate 13 is rotated in the opposite direction to the arrow opening, and the lock is opened. The member 11 is a torsion spring 12
The first retaining piece 1 rotates in the opposite direction of arrow A due to the bias of
6 engages with the lock groove, and the fourth retaining piece 20 of the stop plate 13 and the third arm 2 of the stop lever 22
By releasing the engagement with 7, the seat can be locked at a desired position.

The present invention has the above-described structure and operation, and after the rear seat occupant finishes getting on and off by the action of the stop lever that engages and disengages the lock member and the memory plate, the seat that has been moved forward is allowed to slide rearward. Just move the seat cushion to its predetermined position automatically,
It can be easily locked, and while the seat is moving, the locking member and locking plate can be maintained in a disengaged state by engaging the stop lever and the locking member without operating the adjustment handle. can do.

Also, if you want to lock the seat at any position while it is moving, you can release the walk-in by simply operating the adjustment handle and lock the seat at any position.

In addition, the seat position can be adjusted by simply rotating the handle to disengage the lock member from the lock plate, and also to release the engagement between the lock member and the stop lever, making it easy to remove the seat. It can be moved to any position and locked in that position, and the lock member and lock plate can be maintained in a disengaged state and the seat cushion can be locked in a predetermined position using only the stop lever, and the structure is comparable. It has various advantages such as being easy to use and having no risk of malfunction.

[Brief explanation of the drawing]

Figures 1 to 7 show an embodiment of the slide device for a reclining seat according to the present invention, and Figure 1 is a plan view of the main part, showing that the upper rail is locked at a predetermined position. Figure 2 is a sectional view taken along the line ■-■ in Figure 1, Figure 3 is a plan view showing the state when the seat back is folded forward, Figure 4 is IV-IV in Figure 3.
5 is a plan view showing the state when the adjustment handle is operated, FIG. 6 is a sectional view taken along line VI--VI in FIG. 5, and FIG. 7 is an exploded perspective view of the main parts. 1... Lower rail, 2... Ahhh L
/-le, 4...Lock plate, 5...
・Lock groove, 6...Memory plate, 8...
... Adjustment handle bracket, 10 ... Adjustment handle, 11 ... Lock member, 12 ...
・･･････Shonsu ring, 13･･･Lock open plate, 16･･･First engagement piece, 17
...Second engagement piece, 19...Third engagement piece, 20...Fourth engagement piece, 22...
・Stop lever, 24...Tension spring, 25...-111 (7) Arm, 26...
...Second arm, 27...Third arm.

Claims (1)

[Claims] 1. A lock plate fixed to the lower rail of the seat track for moving the reclining seat, a memory plate for memorizing the predetermined position of the seat cushion, an adjustment bundle bracket fixed to the upper rail of the seat track, and a rotatable member attached to the adjustment bundle bracket. A supported adjustment bundle for adjusting the seat position, and a locking position and unlocking which are constantly urged by a torsion spring to rotate in the direction of the lock plate in conjunction with the raising and lowering of the seat back, and which engage the lock plate. A locking member having a first engaging piece that can occupy a position and rotatably supported by the adjustment handle, and a third retaining piece that engages with the locking member between the locking member and the lock plate. a locking arm plate fixed to the adjustment bundle adjacent to the rear of the locking member, and having first, second and third arms on the upper surface of the upper rail, and a tension spring. A stop lever is rotatably pivoted to be biased rearward by the locking member, and the locking member has a second retaining piece that engages with the first arm in response to the forward tilting of the seat back. , the lock open plate has a fourth retaining piece that engages with the third arm by rotation of the adjustment bundle, the second arm engages with the front end side of the memory plate, and the lock open plate has a fourth retaining piece that engages with the third arm when the adjustment bundle is rotated; The rotation range is such that the third engagement piece guides the lock member to the unlock position, the fourth retention piece engages with the third arm, and the second arm and the end side of the memory plate A sliding device for a reclining seat, characterized in that the range is such that the range is non-aligned.