JPS6210189Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has a seat reclining adjustment mechanism,
The present invention relates to a seat adjustment device equipped with a seat longitudinal slide adjustment mechanism.

Conventionally, some automobile seats are equipped with a reclining adjustment mechanism and a front-back sliding adjustment mechanism, and in order to operate these adjustment mechanisms, the locks provided for each must be released and activated. In order to release these locks, it is normal to operate a separate operating handle. There is also a device that operates the reclining adjustment mechanism and the longitudinal slide adjustment mechanism using a single operating handle, but in this case, the operating handle is operated in both the longitudinal direction or the vertical direction from the neutral position, and the operating handle is movable. The range is wide and a large space is required for operating the operating handle, and operating the operating handle in both directions forward and backward or up and down from the neutral position is both an easy direction and a difficult direction. It has the disadvantage that force must be applied.

The object of this invention is to be able to operate the reclining adjustment mechanism and the front/back slide adjustment mechanism of the seat using a single operating handle, and to operate the operating handle only in a single direction. The purpose of the present invention is to provide a seat adjustment device that reduces the space required for the operation and can be operated only in the direction of easy operation, as will become clear from the detailed description below with reference to the drawings. Probably.

1, 2 and 3 show an embodiment of the seat adjustment device according to the present invention, in which the seat back 2 of the seat 1 is adjusted to the seat back of the seat 1 via a reclining adjustment mechanism 4. A longitudinal slide adjustment mechanism 5 is attached to the lower part of the seat cushion 3. In this embodiment, this slide adjustment mechanism 5 is mounted on a mounting base 6 on the floor of the automobile. installed.

The reclining adjustment mechanism 4 includes a connecting member 7 attached to one side of the seat cushion 3, a lower end of an arm 8 is rotatably attached to the connecting member 7, and the seat back 2 is fixed to the upper end of the arm 8. ing. The arm 8 is rotatable about an axis 9, and the locking mechanism 11 of the reclining adjustment mechanism 4 is released by rotating the first locking lever 10. For example, the lock mechanism 11 is attached to the first external tooth 13 formed at the lower end of the arm 8 attached to the connecting member 7.
Internal teeth 14 formed at one end of the lock lever 10 of
The center portion of the first lock lever 10 is rotatably supported by a shaft 15 on the connecting member 7, and the first lock lever 10 is rotated as shown by the clockwise arrow in FIG. By rotating the arm 8 in the direction a, the arm 8 can be rotated. The first lock lever 10 is normally urged counterclockwise b by a spring 17 so as to maintain the locked state, and a suitable stopper member 18 is attached to hold it in a predetermined position.

The front and rear slide adjustment mechanism 5 is as shown in FIG.
The fixed rail 21 includes a fixed rail 21 fixed to the mounting base 6 and a movable rail 22 attached to the fixed rail 21 so as to be movable back and forth.
For example, a lock plate 23 is fixed to the
A lock piece 28, which will be described later, can be engaged with the protruding pawl 24 of the lock plate 23.
A bracket 26 is fixed to the upper part of the movable rail 22, and a shaft 27 is rotatably supported on the side of the bracket 26 that projects from the side of the movable rail 22, and is formed approximately at right angles to the shaft 27. The central part of the lock piece 28 is fixed, and the lock piece 2
An engagement hole 29 is formed near the vertically extending lower end of the lock piece 8, and the lower end of the second lock lever 30 is pivotally supported at the horizontally extending tip of the lock piece 28.

Therefore, from the state in which the protruding pawl 24 of the lock plate 23 and the engagement hole 29 of the lock piece 28 are engaged to hold the movable rail 22 in a locked state with respect to the fixed rail 21, the second lock lever is 3
0 upward, the lock piece 28 rotates about the shaft 27 from the state shown by the solid line in FIG. The engagement state with the engagement hole 29 can be released, and the movable rail 22, in other words, the seat cushion 3 of the seat 1 can be freely moved back and forth. In this embodiment, a lock plate 23 having a protruding pawl 24 is fixed to a fixed rail 21, and an engagement hole 29 of a lock piece 28 is configured to engage with the protruding pawl 24. However, the protruding claw 24 and the engagement hole 2
The fixed rail 21 and the movable rail 22 are not limited to the shapes shown in the drawings, and various shapes can be used.

Furthermore, one end of an operating handle 40 is pivotally supported on the shaft 9 that pivots the lower end of the arm 8 to the connecting member 7, and this operating handle 40 is connected to the first lock lever 10 of the reclining adjustment mechanism 4; Second lock lever 30 of the slide adjustment mechanism 5
and the operating handle in a single direction, as shown by arrow c.
By operating the reclining adjustment mechanism 4 in the direction, either the lock lever 10 of the reclining adjustment mechanism 4 or the lock lever 30 of the slide adjustment mechanism 5 is actuated to release either of the locked states, and the reclining adjustment mechanism 4 or the slide adjustment It is configured such that any one of the mechanisms 5 can be selectively operated.

That is, the lock lever 10 of the reclining adjustment mechanism 4 near the center of the operating handle 40
A guide hole 4 is provided at a position where the lock lever 30 of the slide adjustment mechanism 5 extends from a position where one end thereof extends.
1 is bored, and a cylindrical handle part 42 is formed at the front end of the operating handle 40.
It has an operating rod 43 that is inserted into the inside so that it can move freely back and forth,
The rear end of the operating rod 43 is bent and slidably inserted into the guide hole 41. Note that the operating rod 43 is normally biased by a spring 44 in a direction in which it projects from the tip of the handle portion 42.

The tip hook portion 32 of the lock lever 30 of the slide adjustment mechanism 5 is located on the side from which the rear end of the operating rod 43 inserted into the guide hole 41 of the operation handle 40 projects. An engagement groove 12 located at the upper front side and further below the tip of the lock lever 10 of the reclining adjustment mechanism 4.
are located at the upper part of the rear side of the guide hole 41, so that the operating rod 43 can engage with either one of the first and second lock levers 10 and 30. Reference numeral 46 is a spring for returning the operating handle 40. Further, in this embodiment, the case where the guide hole 41 is formed in the operation handle 40 has been described, but the operation rod 43 moves back and forth, and the first and second lock levers 10 and 3
0, it is not necessary to form the guide hole 41.

According to such a configuration, the reclining adjustment mechanism 4
When the slide adjustment mechanism 5 and the slide adjustment mechanism 5 are both in the locked state, if you want to operate the slide adjustment mechanism 5, grasp the handle 42 of the operation handle 40 and rotate it about the shaft 9 in the direction of arrow c. For example, since the rear end of the operating rod 43 is normally biased toward the front side of the guide hole 41 by the action of the spring 44, the lock lever 30 of the slide adjustment mechanism 5 is moved in the direction indicated by the arrow d.
As described above, the slide adjustment mechanism 5 is released from the locked state, and the seat cushion 3 can be moved back and forth. Next, when you want to operate the reclining adjustment mechanism 4, slide the tip of the operating rod 43 protruding from the tip of the handle portion 42 in the direction of arrow e, and move the rear end of the operating rod 43 toward the rear side of the guide hole 41. When the operating handle 40 is rotated about the shaft 9 in the direction of the arrow c in the same manner as described above, the rear end of the operating rod 43 will engage the engagement groove 12 of the lock lever 10 of the reclining adjustment mechanism 4. When engaged, the lock lever 10 is rotated about the shaft 15 in the direction of the arrow a, and the locked state of the reclining adjustment mechanism 4 is released as described above.
The seat back 2 can be tilted forward freely, and when one of the above-mentioned locked states is released, the other locked state is not affected at all, and the operating direction of the operating handle 40 can be changed in either of the above-mentioned cases. Also, it is only necessary to perform it in the same single direction.

According to the seat adjustment device according to the present invention, it is possible to operate the seat reclining adjustment mechanism and the front and back slide adjustment mechanism by using a single operating handle and operating it in a single direction,
This has advantages such as reducing the space required for operating the operating handle and facilitating the operation since it is operated only in a single direction.

It should be noted that this embodiment merely shows one embodiment of the present invention, and it will be obvious that various modifications and changes can be made without departing from the spirit of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing a state in which the seat adjustment device according to the present invention is implemented on an automobile seat as an example; FIG. 2 is a side explanatory view of the main parts of the present invention;
FIG. 3 is a cross-sectional explanatory view showing one embodiment of the longitudinal slide adjustment mechanism. In the figure, 1... Seat, 4... Reclining adjustment mechanism, 5... Front and rear slide adjustment mechanism, 7... Connecting member, 8... Arm, 9... Shaft, 10... Lock lever, 11... Lock mechanism, 21 ... fixed rail, 22 ... movable rail, 23 ... lock plate, 24 ... protruding claw, 28 ... lock piece, 29 ...
...Engagement hole, 30... Lock lever, 40... Operating handle, 41... Guide hole, 43... Operating rod.

Claims (1)

[Scope of utility model registration request] A seat adjustment device comprising a seat reclining adjustment mechanism and a seat longitudinal sliding adjustment mechanism, wherein a first lock lever of the reclining adjustment mechanism, a second lock lever of the longitudinal sliding adjustment mechanism, and the first and second lock levers of the reclining adjustment mechanism; an operating handle having an operating lever that can selectively engage with a second lock lever, an engagement groove being formed in the first lock lever, and a hook portion being formed at the tip of the second lock lever; A guide hole is formed in the operating handle along the longitudinal direction of the operating handle, and the operating rod is inserted into a handle provided at the front end of the operating handle so as to be movable back and forth, and is normally moved away from the handle by a spring. The operating rod is biased to protrude forward, and the rear end of the operating rod is bent and inserted into the guide hole, and the bent portion of the operating rod engages the first and second lock levers at the front and rear positions of the guide hole. The operating handle is selectively engaged with the engagement groove and the hook portion of the lock lever, and the operation handle is rotated in a single direction in the selective engagement state with the first and second lock levers. By doing so, one of the first and second lock levers can be selectively operated to release the locked state, and either one of the reclining adjustment mechanism or the longitudinal slide adjustment mechanism can be selectively operated. A seat adjustment device characterized by comprising: