JPH0511068Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a seat slider structure that is provided between a car seat and a car body and is used to move and adjust the seat in the longitudinal direction of the car. .

(Prior Art) Conventionally, seat slider structures include one equipped with a cable-type operating lever 6a shown in FIG. 4, and a rod-type operating lever 6b shown in FIG.
It is known that it has the following. As shown in FIG. 4, the cable-type operating lever 6a has a lower slider 2 fixed to the vehicle body side via a cradle 1a, and an upper slider 3 fixed to the seat side, and their relative positions can be adjusted. A pair of slider units S each consisting of a regulating lock plate 5a are arranged on the left and right, and the slider unit S is comprised of an operating lever 6a for simultaneously engaging and disengaging the pair of slider units S and each of these lock plates 5a. be.

A roller 41 and a steel ball 42 are rollably interposed between the lower slider 2 and the up-pass slider 3, and the seat is configured to be able to move in the fore-aft direction of the vehicle body by the rolling of the roller 41 while preventing wobble in the left-right direction by the steel ball 42.

A large number of locking holes 11 are continuously formed in the side surface of the pedestal 1a in the direction of movement, and a lock plate 5a is formed on the side surface of the top slider 3 around a shaft 51a arranged in the direction of movement.
The lock plate 5a is urged by a coil spring (not shown) in the direction of engagement with the locking hole 11,
This lock plate 5a is inserted into the locking hole 11 in the fourth position.
As shown by solid lines and dashed-dotted lines in the figure, the seat is configured to be regulated in position by being removably engaged.

The operating lever 6a is composed of a wire cable 61a that connects the pair of lock plates 5a to each other, and an operating portion 62a fixed to one shaft 51a of the lock plates 5a. The rotational operating force of the operating portion 62a from the released state shown by the solid line in FIG. 4 to the operating state shown by the dashed-dotted line is also transmitted to the other (driven side) lock plate 5a via the wire cable 61a. The pair of lock plates 5a are engaged and disengaged at the same time, thereby making it possible to adjust the sliding position of the seat.

To assemble the seat slider structure having this cable type operating lever 6a to the seat, connect the pair of sliders S to the seat bottom frame on the seat side, and then connect the pair of lock plates 5 to the seat bottom frame.
a may be connected to each other by a wire cable 61a. However, this wire cable 61a
In the connection work, the wire cable 61a is passed through the connection hole between the two, and both ends are bent, and the wire cable 61a is connected so that the pair of lock plates 5a are operated synchronously by rotating the operation part 62a.
It is necessary to fix it with, for example, an ohm clip while taking out the slack and tightening it.

Therefore, the work of connecting the wire cable 61a requires time and effort, and the length of the wire cable 61a tends to vary. If the length of the wire cable 61a varies, the left and right sliders S can lock the lock plate 5a.
The engagement and disengagement operations are not synchronized and malfunctions are likely to occur. For example, when the pair of lock plates 5a are released by rotating the operating part 62a as shown by the dashed line in FIG. 4, if the wire cable 61a is attached slightly longer, the The lock plate 5a does not fully move from the locking hole 11 to the release position (the position shown by the one-dot chain line in FIG. 4) (see the two-dot chain line in FIG. 4), so that the tip of the lock plate 5a does not reach the lock hole 11. The lock remains in contact with the area around the hole, resulting in an incompletely unlocked state. In this case, even if the operating part 62a is released, the driven-side lock plate 5a may remain in contact with the periphery of the locking hole 11, which causes a so-called pseudo-lock in which the seat is not sufficiently locked. There is a risk that the condition may occur. There is a possibility that the operator may mistake the above-mentioned pseudo-locked state for a locked state.

The rod-type operating lever 6b, which is applied as a substitute for the operating lever in the conventional seat slider structure, has a rod 61b, a connect plate 62b attached to the rod 61b, and a rod-type operating lever 6b, as shown in FIG. 6
The rod 61b is composed of a holding member 31b fixed to the upper surface of the Atsupa slider 3.
are held on the upper surface of a pair of single sliders S so as to be rotatable about an axis perpendicular to the sliding direction. The connect plate 62b has an extending piece 53b projecting laterally from the upper end of the lock plate 5b.
, and the rotational operating force of the operating portion 63b is transmitted via the extension piece 53b, whereby the lock plate 5b rotates around the shaft 51b and locks the locking hole 11.
The slide position of the seat can be adjusted by engaging and disengaging the seat.

In the conventional seat slider structure having this rod type operating lever 6b, the connecting plate 62b and the extending piece 53 of the lock plate 5b are
For example, when one of a pair of lock plates 5b is in a pseudo-lock state, the other lock plate 5b is locked by the connect plate 62b that is engaged with one lock plate 5b. Movement is also restricted, and therefore, even if the operating portion 63b is released, both remain in a pseudo-locked state, and as in the case of the cable type operating lever, there is a risk that the seat will not be sufficiently locked.

(Purpose of the invention) This invention was made in order to solve such conventional problems, and provides a seat slider structure that can prevent the occurrence of a false lock state and reliably lock the seat. It is something to do.

(Structure of the invention) This invention consists of a lower slider fixed to the vehicle body side, an Atsupashi slider fixed to the seat side and slidably fitted to the lower slider, and a pair of sliders that are removably positioned relative to each other. A pair of sliders each having a locking means for fixing the slider are disposed on the left and right, and a rod-shaped operating lever for engaging and disengaging the locking means is rotatable around an axis perpendicular to the sliding direction. In the seat slider structure arranged in the seat slider structure, the locking means is attached to a plurality of locking holes formed in the sliding direction in one of the pair of sliders, and is attached to the other slider so that it can be locked and detached from the locking hole. and a lock plate that engages with the lock plate, each of the lock plates of the pair of sliders being biased independently of each other in a direction to engage with the locking hole, and the operation lever and the pair of lock plates comprising: The lock plate is constructed so that each of the lock plates can independently return to the biased direction when no operating force is applied to the operating lever.

According to the above configuration, the pair of lock plates are biased independently from each other in the direction of engagement with the locking hole, and the operating lever and the lock plate do not apply any operating force to the operating lever. Since each of the above-mentioned lock plates is configured to be able to move independently of each other in the state of the The plate can be actuated independently to engage the locking hole.

(Example) In FIGS. 1 to 3, a control lever 6 is configured to be rotatably held at a predetermined position by being sandwiched between a pair of sliders S and a seat bottom frame F. A seat slider structure is shown. In FIG. 1, a projecting edge 10 is formed to protrude laterally from opposing side edges of the pedestals 1 of a pair of sliders S, and a large number of locking holes 11 are formed in this projecting edge 10 continuously in the sliding direction. It is formed through. A flat lock plate 5 is attached to a support bracket 5 on the side surface of the pair of upper sliders 3.
1 so as to be movable up and down. An extending piece 53 is formed on the upper edge of the lock plate 5 to protrude laterally, and a locking pawl 54 is formed on the lower edge facing downward. Atsupaslider 3
A plate-shaped lock spring 52 is attached to the upper surface of the plate, and this lock spring 52 biases the lock plate 5 in the direction in which its locking pawl 54 engages with the locking hole 11.

The operating lever 6 has a rod portion 6 extending over the upper surface of the pair of sliders S at right angles to the sliding direction.
1, a connect plate 62, and an operating section 63 are integrally constructed, and the operating section 63 is formed by bending one end of the rod section 61.
As shown in FIGS. 2 and 3, the connect plate 62 is connected to the rod 61 in advance so as to be sandwiched between the lower surface of the extension piece 53 of the lock plate 5 and the pin 511 formed protruding from the side surface of the support bracket 51. is fixed in place. Further, a coil spring 64 is connected to the rear end of the connect plate 62, as shown in FIG.
is urged to rotate in a direction (counterclockwise in FIG. 3) in which the tip end comes into contact with the pin 511.

The rod portion 61 of the operating lever 6 is fitted into a recess 71 formed on both left and right sides of the lower surface of the seat bottom frame F, and the rod portion 61 is inserted into the recess 71 by the upper surface of the upper slider 3. Its inner surface is formed so that it can be held rotatably around its axis at the same position.

To assemble the seat slider structure having the above configuration, as shown in FIG. Place the operating lever 6 at a predetermined position on the upper surface of the pair of sliders S so that it can be inserted, and insert the seat bottom frame F from above the pair of sliders S in this state so that its recess 71 is at the rod portion. 61 and fix it to the Atsupa slider 3 with the connecting bolt 32.

In this way, when connecting the seat bottom frame F to the pair of single sliders S, the assembly is completed simply by placing the operating lever 6 at a predetermined position on the upper surface of the Atsupas slider 3. The work is easier than assembling the conventional operating lever 6a shown in the figure, and since the operating lever 6 is sandwiched between the inner surface of the recess 71 of the seat bottom frame F and the upper surface 33 of the Atsupa slider 3, it can be reliably assembled. Retained. Furthermore, the operating lever 6 is equipped with a rod portion 61, an operating portion 63, and a connecting plate 62 in advance.
can be formed integrally, so the fifth
The number of parts can be reduced compared to the conventional rod type operating lever 6b shown in the figure.

According to this seat slider structure, the lock plate 5 in the normal state is
As shown by the solid line in the figure, the engagement state with the locking hole 11 is maintained by the biasing force of the lock spring 52, thereby restricting the sliding movement of the seat and locking it. From this state, if you grab the operating part 63 of the operating lever 6 and pull it upward as shown by the two-dot chain line in FIG. In order to rotate while being pinched, the connect plate 62 rotates around the rod portion 61 in a direction that pushes up the lock plate 5 via the extension piece 53 (clockwise in FIG. 3). This causes the lock plate 5 to lock onto the lock spring 52.
It moves upward against the force and is disengaged from the locking hole 11.

In this state, when the seat is slid to a desired position and the operating section 63 is released, the lock plate 5 is engaged with the locking hole 11 by the restoring force of the lock spring 52, and the seat is locked again. . At this time, the connect plate 62 is connected to the coil spring 64 regardless of the behavior of the lock plate 5.
Pin 51 of support bracket 51 due to the restoring force of
1, the lock plate 5 returns freely without being restricted by the connect plate 62. Therefore, even if one of the lock plates 5 of the pair of sliders S becomes poorly engaged with the locking hole 11, the other lock plate 5 is operated independently and engages with the locking hole 11. can do. Therefore, the pair of lock plates 5 operate independently to engage the locking holes 11 without being interfered with by the operation of the other, thereby preventing the occurrence of a pseudo-locked state of the seat.

In the above embodiment, the operating lever 6 is also biased by a coil spring 64, but this coil spring 64 is not necessarily required, and when the operating lever is not operated, the pair of lock plates 5 are pressed against the connecting plate 62. The operating levers may be set in a rotatable state so that they can be engaged freely with each other without being subject to any restrictions.

Furthermore, in the above embodiment, the lock plate 5 has a flat plate shape and is engaged and disengaged by moving up and down, but for example, a conventional lock plate that engages and disengages by rotating as shown in FIGS. 4 and 5 may be used. You can also.

Further, in the above embodiment, an arc corresponding to the rod portion 61 is formed on the upper surface as the recess 71 formed in the seat bottom frame F, but the present invention is not limited to this, and the operation lever 6 can be rotated at the same position. Other shapes can also be used if they can be maintained.

(Effect of the invention) According to the seat slider structure of this invention, the pair of lock plates are biased independently of each other in the direction of engagement with the locking hole, and the operation lever and the lock plate are Since each of the lock plates is configured to be able to move freely relative to each other when no operating force is applied to the lever, even if one of the lock plates does not mesh properly with the locking hole. The other lock plate can be actuated independently to engage the locking hole. Therefore, the occurrence of a false lock state can be prevented and the seat can be reliably locked.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of this invention.
Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
4 is a cross-sectional view showing a conventional sheet slider structure, and FIG. 5 is a perspective view showing another conventional sheet slider structure. 2...Lower slider, 3...Atsupa slider,
5...Lock plate, 6...Operation lever, 11
...Locking hole, S...slider alone.

Claims (1)

[Scope of utility model registration request] A slider comprising a lower slider fixed to the vehicle body side, an upper slider fixed to the seat side and slidably fitted to the lower slider, and a locking means for detachably fixing the pair of sliders to each other. A seat slider structure in which a pair of individual sliders are arranged on the left and right, and a rod-shaped operating lever for engaging and disengaging the locking means is arranged rotatably around an axis perpendicular to the sliding direction on the pair of sliders, The locking means includes a plurality of locking holes formed in one of the pair of sliders in the sliding direction, and a locking plate that is attached to the other slider and removably engages with the locking hole. , the respective lock plates of the pair of sliders are biased independently of each other in the direction of engagement with the locking hole, and the operation lever and the pair of lock plates are arranged such that an operation force is applied to the operation lever. 1. A seat slider structure for an automobile, characterized in that each of the lock plates is configured to be able to return to the biased direction independently of each other when the lock plate is not in a state where the lock plate is pressed.