JPS6123477Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seat adjuster device for adjusting the longitudinal position of an automobile seat, and particularly relates to the structure of a lock lever portion.

Conventionally, for example, as shown in FIG. 1, a pin 7 to which a lock lever 8 is fixed is rotatably supported by a curled portion 3a of a bracket 3, and the bracket 3 is fixed to the upper rail 1, and the bracket 3 and the pin are A seat adjuster device is known that has a lock lever portion in which a coil spring 13 is disposed between the lock lever 8 and the lock lever 8 to urge the lock lever 8 to the lock position.

However, in the conventional device described above, the pin 7 to which the lock lever 8 is fixed must be attached to the bracket 3 during the process of forming the curled portion 3a, or the coil spring 13 must be attached using a special jig. There was an inconvenience that it took a lot of time to assemble the parts.

The present invention has been made to solve the above-mentioned conventional disadvantages, and includes a U-shaped hook part at one end of the coil spring, and a groove-shaped notch in the bracket fixed to the upper rail. The coil spring is temporarily assembled by forming a locking portion and locking the hook portion of the coil spring to the locking portion of the bracket, and further pressing the other end of the coil spring with a lock lever. In addition, by inserting a pin into the mounting hole formed in the bracket and lock lever and the coil spring, the lock part can be easily assembled without using a special jig or the like. It is something.

Hereinafter, the present invention will be explained in detail based on the embodiments shown in FIGS. 2 to 4.

First, to explain the configuration, the end faces of 1 and 2 are approximately C.
A lower rail 2 is slidably fitted into an upper rail 1 using a known letter-shaped upper rail and lower rail. Reference numeral 3 denotes a bracket fixed to the side surface of the upper rail 1 at a substantially central portion by means such as welding, and the upper end of the bracket 3 is bent at a substantially right angle to form a locking portion 4. In addition, groove-shaped notches 4a and 4b are provided at an appropriate interval at the tip of the locking portion 4.
is provided. 5 and 6 are to the left of bracket 3,
This is the cut-and-raised part provided on the right side, and the cut-and-raised part 5 and 6
has mounting holes 5a and 6a for inserting the pin 7.
is worn. 8 is a lock lever that fixes the relative position of the upper rail 1 and lower rail 2;
A fork-shaped lock portion 9 is formed at one end of the lock lever 8, and a synthetic resin knob 10 is attached to the other end. 11 and 12 are lock levers 8
The cut-and-raised portions 11 and 12 are cut-and-raised portions provided on the left and right sides of approximately the center portion, and mounting holes 11a and 12a for inserting the pin 7 are bored in the cut-and-raised portions 11 and 12. Reference numeral 13 denotes a coil spring for biasing the lock lever 8 to the lock position, and one end of the coil spring 13 has a U-shaped hook portion having a gap suitable for holding the locking portion 4 of the bracket 3. 13a
is formed, and a contact portion 13b bent at a right angle is formed at the other end. 14 is a notch formed in the upper rail 1, 15 is a plurality of lock holes provided at appropriate intervals in the lower rail 2, and the lock portion 9 of the lock lever 8 passes through the notch 14 into the plurality of lock holes 15. It is adapted to be selectively engaged. 16 is a known push nut attached to the tip of the pin 7, and 17 is a spring-like roller disposed between the upper rail 1 and the lower rail 2.

Next, the assembly of the lock lever portion in the above device will be explained. When the hook portion 13a of the coil spring 13 is locked in the notch 4a provided in the locking portion 4 of the bracket 3, the hook portion 13a engages with the locking portion 4.
The coil spring 13 clamps the bracket 3.
will be temporarily assembled. In this state, the contact portion 13b of the coil spring 13 is pressed by the lock lever 8, and the mounting holes 11a and 12a provided in the cut and raised portions 11 and 12 of the lock lever 8 are inserted into the bracket 3.
Attachment holes 5a, 6 provided in cut and raised portions 5, 6 of
Insert the pin 7 into the mounting holes 11a and 5 according to
a. By inserting the coil spring 13 into the hollow part and the mounting holes 6a, 12a, and then attaching the push nut 16 to the tip of the pin 7, assembly of the lock lever part is completed.

Therefore, in the device configured as described above, the lock lever 8 is always biased in the direction of the lock position by the coil spring 13, and the lock portion 9 of the lock lever 8 passes through the notch 14 of the upper rail 1 and then connects to the lower rail. 2 lock hole 1
5, and the relative positions of the upper rail 1 and the lower rail 2 are fixed. If the lock lever 8 is rotated counterclockwise about the pin 7 in FIG. It is released from the notch 14, and the upper rail 1 becomes slidable with respect to the lower rail 2. In this state, when the upper rail 1 is slid to an arbitrary position and the lock lever 8 is released, the lock lever 8 is rotated by the coil spring 13 about the pin 7, and the lock part 9 is moved into the notch 1 of the upper rail 1.
Then, the upper rail 1 and the lower rail 2 are selectively engaged with a plurality of lock holes 15 provided in the lower rail 2, and the relative positions of the upper rail 1 and the lower rail 2 are fixed again. In addition,
In this embodiment, in order to prevent the rotation of the end 13b of the coil spring 13 due to the rotational operation of the lock lever 8 from being hindered by contact with the locking part 4 of the bracket 3, a notch is provided in the locking part 4. 4b
However, the shape of the locking portion 4 or the terminal 13b of the coil spring 13
By changing the abutment position of the lock lever 8 and the lock lever 8, changes in design such as not providing the notch 4b are also possible.

As is clear from the above explanation, in the seat adjuster device of the present invention, a U-shaped hook portion is provided on one end of the coil spring, and a notch is provided in the engaging portion of the bracket fixed to the upright rail, so that the coil spring can be temporarily assembled by engaging the hook portion of the coil spring with the engaging portion of the bracket. Furthermore, the lock portion can be assembled by pressing the other end of the coil spring with the lock lever and inserting a pin into the mounting hole formed in the bracket and lock lever and into the coil spring, so assembly can be easily performed without using special tools, etc.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a conventional example. Figures 2 to 4
The figures show an embodiment of the present invention; Fig. 1 is an exploded perspective view of the lock lever, Fig. 3 is a sectional view of the main part when the lock lever is installed, and Fig. 4 is a front view showing the seat adjuster device. be. Explanation of symbols, 1... Upper rail, 2... Lower rail, 3... Bracket, 4... Locking part, 4
a, 4b...notch, 5, 6... cut and raised part, 5a,
6a...Mounting hole, 7...Pin, 8...Lock lever, 9...Lock portion, 11, 12...Cut and raised portion, 11a, 12a...Mounting hole, 13...Coil spring, 13a...Hook Part, 13b...
Contact portion, 14...notch, 15...lock hole.

Claims (1)

[Scope of utility model registration request] An upper rail 1, a lower rail 2 slidably fitted onto the upper rail 1, a bracket 3 fixed to the upper rail 1, a lock lever 8 formed with a lock portion 9 rotatably attached to the bracket 3 by a pin 7, and a lock lever 8. Coil spring 1 that biases the upper rail 1 and lower rail 2 to a lock position that fixes their relative positions.
3, the bracket 3 is formed with a locking part 4 having a notch 4a, and a U-shaped hook part 13a and a contact part 13b are formed at both ends of the coil spring 13. The hook portion 13a is locked in the notch 4a of the locking portion 4 so that the locking portion 4 is held between the hook portion 13a, and the contact portion 13b is brought into contact with the lock lever 8. The seat adjuster device is further characterized in that the pin 7 is inserted into a hollow portion of a coil spring 13.