JPS5848900Y2 - Vehicle seat adjuster - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a seat adjuster for a vehicle.

As shown in FIG. 1, a vehicle seat adjuster that has been put to practical use in the past includes an upper channel 2 attached to a seat cushion 1 and a lower channel 4 attached to a vehicle body 3. Roller 5 and ball 6 interposed between upper channel 2
There is a device that guides the upper channel 2 in a slidable manner.

The method of regulating the longitudinal movement limit between the most advanced position and the most retracted position of the seat cushion 1 in the seat adjuster is to cover the lower channel 4 with the upper channel 2, interpose the roller 5 and the ball 6 between them, and then FIG. 2a shows the relationship between the dowels 7 of the upper channel 2 and lower channel 4, the rollers 5, and the balls 6 after dowels 7 are punched out at appropriate positions.

As shown in b and c, the seat cushion 1 is moved from the neutral position in Fig. 2a to the fully advanced position in Fig. 2A or the fully advanced position in Fig. 2C.
When the roller 5 is moved to the most retracted position, the roller 5 is moved by the dowel I.
This was done by hitting and stopping the ball 6.

However, with the above method, lower channel 4
After assembling the upper channel 2, it is necessary to hammer out the dowel 7, which makes the assembly process cumbersome.
In addition, if the dowel 7 is not properly launched, the ball 6 may climb over the dowel 7 and come off due to the repeated back and forth movement of the upper channel 2 through the seat cushion 1, making it impossible to regulate the limit of back and forth movement. Something happened.

This idea was devised in view of the above-mentioned conventional problems, and the upper channel is secured by applying the sliding force of a rotating lock lever attached to the upper channel to the front and rear ends of the lower channel. A part of the stopper that regulates the forward and backward movement limit is integrated to ensure regulation, while
After assembling the upper channel by rotating the lock lever on the lower channel and passing over a part of the stopper,
A locking part is formed on the seat cushion fixed to this upper channel to limit the rotation limit so that the lock lever rests against the rotation direction and does not go over a part of the stopper, allowing one-touch assembly. provides a new vehicle seat adjuster that is workable.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 3 and 4, the vehicle seat adjuster includes a long upper channel 10 with a downward U-shaped cross section and a long channel body 11 with an upward U-shaped cross section. a lower channel 12 having a
The lower channel 12 is attached to the seat cushion 14 with bolts and nuts 15, and the bottom 11a of the channel body 11 is fixed with a pin 17 to the bottom 16a of the long angle body 16 whose cross section is inverted. The front and rear tongue portions 16b, 16 of the angle body 16 are attached and integrated.
Bolts and nuts (not shown) are attached to the vehicle body 19 through mounting holes 18 and 18 provided in b.

).

Both sides 11b, 1 on the front and rear end sides of the channel body 11
1b, an intermediate member 20° 2:0 made of synthetic resin is attached by fitting its protrusions 20a, . The members 20°..., 20 are inserted into the channel body 11 from one end, and the lower channel 1 is inserted into the channel body 11 from one end.
2, the upper channel 10 is slidably guided.

The intermediate member 20 is for smoothly guiding the upper channel 10 without rattling, and functions in place of conventional rollers and balls.

In the upper part 10a of the upper channel 10, there is a sheep plate 21 having winding parts 21a, 21a on both sides in the longitudinal direction.
to the winding parts 21a, 21a of the hinge plate 21,
The L-shaped operating lever 22 is inserted and rotatably supported, and the lever portion 2 between the winding portions 21a and 21a is
A lock lever 24 having a lock pawl 23 is integrally fixed to 2a by square groove fitting, etc., and a spring 1 ring 25 wrapped around the lever part 22a moves the operating lever 22 together with the lock lever 24 around the hour hand in the figure. energizes in the locking direction.

Side portion 16c of the angle body 16 of the lower channel 12
are provided with lock holes 26° . so that it is locked in the adjustable position.

Further, at the front and rear ends of the side part 16c of the angle body 16, an upper channel 10 is provided when the lock lever 24 is rotated in the lock release direction around the counterclockwise hand in the figure by operating the operation lever 22. When the lock lever is slid back and forth,
24 in the sliding direction and close the upper channel 100.
A stopper portion 27.27 for regulating the forward and backward movement limit is integrally provided.

The lock lever 24 is attached to the seat cushion 14 after the upper channel 10 is assembled to the lower channel 12.
It is held against the locking portion 28 in the rotation direction in the unlocking direction, and the rotation limit is regulated so as not to go over the stopper part 27, 27 of the lower channel 12.

Note that the limit of rotation of the lock lever 240 may be controlled by, instead of providing the locking portion 28 on the seat cushion 14, a stopper pin is driven into the lock lever 24 and the pin abuts against the hinge plate 21.

If the seat adjuster is configured as described above, the angle body 16 of the lower channel 12 to which the channel body 11 is caulked is attached to the vehicle body 19 through the mounting hole 18 with bolts and nuts, and then the operation lever 22 is attached to the hinge plate 21. The upper channel 10 incorporating the lock lever 24 and the spring 25 is inserted into the channel body 11 from one end via the intermediate member 20.

When the lock lever 24 comes into contact with the stopper part 27 of the angle body 16 during insertion, the operating lever 22 is operated to rotate the lock lever 24 in the unlocking direction to the position shown by C in FIG. 4. The stopper portion 27 is climbed over, and in that state it is inserted to the neutral position aligned with the lower channel 12.

After that, when you release your hand from the operating lever 22, the lock lever
24 is rotated in the lock direction by the spring force of the spring 25, and comes to engage with one of the lock holes 26 of the lower channel 12.

Next, add seat cushion 1 to upper channel 12.
4, and then attach the seat cushion 14 to the upper channel 10 using bolts and nuts 15 through the attachment holes 13.

Then, by operating the operating lever 22, the lock lever 24
Even if the lock lever 24 is rotated in the unlocking direction, the lock lever 24 is stopped against the locking part 28 of the seat cushion 14 at the position shown by B in FIG. Even when the lock lever 24 is slid to the most advanced position or the last position, the lock lever 24 is held against the stopper portions 27, 27 of the lower channel 12 and will not come off.

To adjust the seat adjuster, rotate the lock lever 24 in the unlocking direction by operating the operating lever 22, slide the seat cushion 14 to an appropriate position, and then release the operating lever 22. -2
4 is rotated in the locking direction by the spring force of the spring 25,
By engaging one of the lock holes 26 of the lower channel 12, the seat cushion 14 is locked in the sliding position.

As is clear from the above explanation, this invention has a stopper part integrally provided at the front and rear ends of the lower channel to stop the rotationally operated lock lever and limit the forward and backward movement of the upper channel. Because of this, while it is possible to reliably regulate the forward and backward movement limit of the upper channel,
After assembling the upper channel by rotating the lock lever in the lower channel so that it crosses a part of the stopper, the lock lever is restricted to rotate so that it does not go over a part of the stopper on the seat cushion that is fixed to the upper channel. Since the locking part is formed, the upper channel can be assembled to the lower channel with a single touch, and the seat cushion can be adjusted safely because the lock lever does not go over a part of the cusp flange when the seat cushion is in its most advanced or retracted position. It becomes like this.

In addition, the number of parts is small and there is no need to post-process the dowels as in the past, so it can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main part of a conventional seat adjuster, Fig. 2a, Fig. 2S and Fig. 2C are schematic diagrams showing the movement-related positions of the conventional seat adjuster, and Fig. 3 is a diagram according to this invention. FIG. 4 is a perspective view of the seat adjuster, and FIG. 4 is a sectional view taken along the line X--X in FIG. 3. 10... Upper channel, 11...
・Channel body, 12...Lower channel, 1
4...Seat cushion, 16...Angle body, 19...Vehicle body, 20...Intermediate member, 21...Hinge plate, 22・・・・・・
Operation lever, 24...Lock lever 126...
...Lock hole, 27...Part of stopper, 2
8...Locking part (stopper).

Claims (1)

[Claim for Utility Model Registration] An upper channel that is attached to the seat cushion and a lower channel that is attached to the vehicle body, the upper channel is slidably guided by the lower channel, and the rotation operation is attached to the upper channel. In a seat adjuster in which the lower channel is provided with an engagement part that can be freely engaged and disengaged by a lock lever, the front and rear ends of the lower channel are fitted with the lock lever in the sliding direction to allow the upper channel to move back and forth. A part of the stopper that regulates the limit is integrally provided, and the lock lever is attached to the upper channel.
It is assembled into the lower channel so as to be located between a part of both of the stoppers, and the seat cushion has a rotation limit so as to be able to rest against the rotational force of the lock lever and not go over a part of the stopper. A vehicle seat adjuster, characterized in that a locking portion is formed to regulate the movement of the vehicle.