JPH044263Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a telescoping operation lever suitable for a vehicle seat and a seat cushion height adjustment mechanism.

(Prior Art) In an automobile driver's seat, as shown in FIG. 4, an operating lever 02 is disposed on one side of the seat cushion 01 in order to adjust the height of the seat cushion 01. 09 is seat bag,
010 is the head rest.

As shown in FIG. 5, the conventional operating lever 02 is connected to the drive shaft 0 of the seat cushion height adjustment mechanism.
A bracket 04 fixed to the protruding end of the bracket 04, a case 08 that covers this bracket 04, a plurality of pipes 05 whose base ends are fixed to this case 08 and extend and contract like a periscope, and the tip of the innermost thin pipe 05. The return spring 07 is built in each pipe 05 and stretched between the base end of the pipe 05 and the operation knob 06.

(Problems to be Solved by the Invention) When operating the conventional operating lever 02 mentioned above, the pipe 05 is connected to the return spring 0.
7 and rotate around the axis 03, but the tip of the pipe 0 to be gripped
Since the diameter of each pipe 5 is small, it is difficult to grip the pipe 05, making it difficult to apply force, and when each pipe 05 is extended, the outer surface of each pipe 05 is exposed, resulting in an unsightly appearance.

(Means for Solving the Problems) The present invention was proposed to solve the above problems, and its gist is to provide an arm whose base end is fixed to a rotating shaft, and a a grip that covers the arm and engages with the arm so as to be relatively movable along its longitudinal direction; and when the grip is extended against the return spring, it hides the arm, the return spring, etc., and the grip is pulled by the return spring. The telescoping operation lever is characterized by comprising an inner case that aligns with the proximal end of the grip when the grip is in the taut and contracted state.

(Function) Since the present invention has the above configuration, even when the grip is in an extended state, the internal arm, return spring, etc. are covered by the inner case and are not exposed to the outside.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 3.

Reference numeral 1 designates an operating lever, which is a sheet metal bracket 5 fastened to the outer end surface of the drive shaft 2 of the seat cushion height adjustment mechanism with a bolt 4 via a washer 3.
and a metal arm 6 welded to the bracket 5.
and a resin grip 7 that covers the arm 6 and is engaged with the arm 6 so as to be relatively movable along its longitudinal direction.
It includes an inner case 10 made of resin fastened to a bracket 5 via a bush 8 with a thread 9, and a return spring 12 stretched between a pin 11 fixed to a grip 7 and the bracket 5. 13 is a bush fitted onto the drive shaft 2.

Normally, the grip 7 is connected to the pin 11 as shown in the figure.
is pulled by the return spring 12 through the lever 12, and its base end abuts against the inner case 10 at its stepped portion 14, and the operating lever 1 is in a shortened state. In this state, the outer surface of the grip 7 is flush with and continuous with the outer surface of the inner case 10. A tongue piece 10a formed on the outside of the inner case 10 is located inside the outside wall 7b of the grip 7 and hides the return spring 12.

When operating the operating lever 1, use the grip 7.
Grip it and pull it out against the return spring 12. At this time, the grip 7 is guided by the arm 6 fitted into the groove 7a and pulled out smoothly, and the pin 11 locked to the grip 7 moves within the elongated hole 6a formed in the arm 6. When it reaches the right end, it stops and the operating lever 1 is in an extended state. In this state, the operating lever 1 is rotated around the drive shaft 2, and since the arm 6 is fitted into the groove 7a of the grip 7, rotational force can be sufficiently transmitted. In this extended state, the washer 3, bolt 4, bracket 5, arm 6, return spring 12
The built-in contents are hidden by the inner case 10 and cannot be seen from the outside.

(Effects of the invention) The present invention has an arm whose base end is fixed to a rotating shaft, a grip that covers this arm and engages with the arm so as to be relatively movable along its longitudinal direction, and a grip that resists a return spring. and an inner case that hides the arm, return spring, etc. when the organ grip is in the extended state, and aligns with the proximal end of the organ grip when the grip is pulled by the return spring and is in the shortened state. Since the grip can be shaped and thickened so that it is easy to grasp, it becomes easier to operate with force. In addition, when the grip is in its shortened state, the base end of the grip aligns with the inner case and becomes an integral part, which not only improves its appearance, but also allows sheet metal parts such as arms and springs to be stored inside the grip and inner case. can do. Further, even when the grip is in an extended state, the sheet metal parts are hidden by the inner case, so the appearance of the operating lever is improved. In addition, since the number of parts is small, it can be manufactured at low cost.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a partially cutaway front view and Figure 2 being a partially cutaway front view.
The figure is a sectional view taken along the - line in FIG. 1, and FIG. 3 is a sectional view taken along the - line in FIG. 1. FIG. 4 is a perspective view of an automobile driver's seat, and FIG. 5 is a sectional view of a conventional operating lever. Rotation axis...2, Arm...6, Grip...
7. Return spring...12, Inner case...10.

Claims (1)

[Scope of utility model registration request] An arm whose base end is fixed to a rotating shaft, a grip that covers this arm and engages with the arm so as to be relatively movable along its longitudinal direction, and when this grip is extended against a return spring, the above-mentioned arm and A telescoping operation lever comprising an inner case that hides a return spring and the like and that aligns with the proximal end of the grip when the grip is in a contracted state under tension from the return spring.