JPH06896U - Adjustment lever - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the operability of the adjustment lever that adjusts the height of the vehicle seat. [Configuration] An operation plate 2 having a bearing plate 6 fixed to a seat side surface and fitted to an operation shaft 7, and a retracted position and an operation plate 2 formed so as to cover the operation plate 2 and covering the operation plate 2. An operating lever 1 made of resin that is slidable so as to take two positions of a slightly protruding forward position, a spring 10 for urging the operating lever 1 to a retracted position, an upper edge of the operating plate 2 and an operating lever. 1 and a small gap 13, a protrusion 17 provided on the upper edge of the operation plate 2, and a step portion 18 provided on the operation lever 1 and engaged with the protrusion 17 at the forward position.
And [Effect] When the operation lever 1 is pulled out and operated upward, the projection 17 and the step portion 18 are not engaged with each other, and the operation lever 1 is not pulled back by the spring 10, so that the operability is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of an adjusting lever for adjusting a height of a vehicle seat, and more particularly, to an adjusting lever which is disposed on a side surface of a seat and is expandable and contractible for improving operability.

[0002]

[Prior art]

 A conventional device of this type is shown in FIG. In the adjusting lever of FIG. 6, a bearing plate 26 integrally provided with an annular portion 27 for holding the operation shaft is fixed to the operation plate 22 and fixed to the operation shaft, and the operation lever 21 is attached to the operation plate 22. It is slidably arranged by a spring 28 described later. Further, the operation plate 22 is provided with an elongated hole 23 through which a pin 25 fixed to the operation lever 21 is inserted, and the stroke of the operation lever 21 is determined. Further, dampers 24 are arranged at both ends of the long hole 23. A spring 28 is arranged on the pin 25 and the hook 26a of the bearing plate 26, and the operating lever 21 is made to be able to extend and contract with respect to the operating plate 22.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional device, the operating lever 21 is pulled out from the operating plate 22 during the operation, but the operating lever 21 is pulled back by the spring 28 during the operation, which deteriorates the operability. There was a point. The present invention has been made to solve the above problems, and an object thereof is to provide an adjusting lever having excellent operability, in which the operating lever is not pulled back by the spring during operation. Especially.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, as illustrated in the embodiment drawings, an operating plate 2 fitted to an operating shaft 7 and a biasing force of a spring 10 formed so as to cover the operating plate 2. In the adjustment lever composed of the operation lever 1 that can be moved back and forth by means of the above, a protrusion 17 is provided on the upper edge of the operation plate 2, and a step portion 18 that engages with the protrusion 17 at the forward position of the operation lever 1 is provided. There is provided an adjusting lever, wherein the adjusting lever is provided on the operation lever 1.

[0005]

[Action]

 In the adjusting lever configured as described above, when the operation lever 1 is pulled out to the forward position and operated upward, the protrusion 17 of the operation plate 2 engages with the step portion 18 of the operation lever 1, and the operation lever 1 is moved by the spring 10. Never be pulled back.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. The present embodiment is applied to an adjustment lever of a lift device that raises and lowers a vehicle seat, and the adjustment lever is arranged on the side surface of the seat. 1 is a front view showing the appearance of the adjusting lever, FIG. 2 is a vertical sectional view, FIG. 3 is a plan sectional view, and FIG. 4 is a side sectional view.

The operating lever 1 grasped by fingers is made of synthetic resin and is hollow inside. As shown in FIG. 2, a plate-shaped operation plate 2 made of steel is housed in the cavity. An elongated hole 3 is formed in the operation plate 2, and circular rubber dampers 4 are fitted and inserted at both ends of the elongated hole 3. A pin 5 penetrates the long hole 3 and is fixed to the operation lever 1. Therefore, the operating lever 1 can be moved within a range in which the pin 5 contacts the left and right dampers 4. A bearing plate 6 is fixed to the tip of the operation plate 2 by welding. As shown in FIG. 3, the bearing plate 6 has an annular portion 8 into which the operating shaft 7 is fitted. A tip portion of the bearing plate 6 extends and is bent to form a hook portion 9. A spring (tensile spring) 10 is stretched between the hook portion 9 and the pin 5 to urge the operating lever 1 in the backward direction. Further, the operating lever 1 can swing at the forward position by the amount of the gap 13.

As shown in FIG. 2, groove-shaped guides 11 and 12 for guiding the upper end edge and the lower end edge of the operation plate 2 are formed inside the operation lever 1 made of resin. . A slight gap 13 is provided between the upper edge of the operation plate 2 and the operation lever 1. Then, a small vertical hole 14 is opened in the upper edge of the operation plate 2, and a compression spring 15 and a damper 16 made of resin are inserted. A small protrusion 17 is provided behind the upper edge of the operation plate 2. A step portion 18 that engages with the protrusion 17 is provided at the rear end portion of the groove-shaped guide 11 of the operation lever 1. The damper 16 slidably contacts the operating lever 1 to prevent rattling of the operating lever 1 which is retracted by the urging force of the spring 10 and acts to disengage the step portion 18 and the protrusion 17 during operation.

The operation will be described based on the above configuration. When the operating lever 1 is grasped with fingers and pulled out forward, and an upward force is applied at this position, the damper 16 is pushed down against the biasing force of the compression spring 15, and the upper edge of the operating plate 2 and the operating lever 1 are separated. The slight gap 13 between them is contracted, and as shown in FIG. 5, the projection 17 on the upper edge of the operation plate 2 engages with the step portion 18 of the operation lever 1. Therefore, during operation of the operating lever 1, the operating lever 1 is not pulled back even if the operating lever 1 is not pulled out with a finger, and the operating lever 1 can be lifted upward and the height of the seat can be adjusted. Further, when the operation is completed and the force for pushing the operation lever upwards disappears, the damper 16 is urged by the compression vane 15 to push up the operation lever 1, and the step portion 18 of the operation lever 1 and the projection 17 of the operation plate 2 are pushed up. The engagement can be released. The operation lever 1 is pulled out and operated with respect to the operation plate 2 at the time of operation in order to prevent the seat cushion from being an obstacle and to increase the torque to reduce the operation force. In the present invention, even if the damper 16 is not used, the stepped portion 18 of the operation lever 1 and the projection 17 of the operation plate 2 can be engaged and disengaged only by urging the spring 10, but the damper 16 is provided. By doing so, it is possible to engage and disengage more reliably.

[0010]

[Effect of device]

 The present invention is an adjustment lever having the above-mentioned configuration, which includes an operation plate fitted to the operation shaft, and an operation lever formed to cover the operation plate and movable back and forth by the biasing of the spring. The operation lever is pulled out because a protrusion is provided on the upper edge of the operation plate and a stepped portion that engages with the protrusion at the forward position of the operation lever is provided on the operation lever. This has an excellent effect that the projection and the step are not engaged and the operation lever is not pulled back only when the operation lever is operated upward.

[Brief description of drawings]

[Figure 1] Front view of the adjustment lever

FIG. 2 is a vertical sectional view of an adjusting lever.

FIG. 3 is a plan sectional view of an adjustment lever.

FIG. 4 is a side sectional view of the adjusting lever.

FIG. 5 is a sectional view showing the engagement between the protrusion and the step portion.

FIG. 6 is a vertical sectional view of a conventional adjusting lever.

[Explanation of symbols]

 1 Operation lever 2 Operation plate 6 Bearing plate 10 Spring 13 Gap 17 Protrusion 18 Step

Claims (1)

[Scope of utility model registration request] 1. An adjustment lever comprising an operation plate fitted to an operation shaft and an operation lever formed so as to cover the operation plate and capable of advancing and retracting forward and backward by biasing of a spring, wherein an upper end edge of the operation plate is provided. An adjusting lever, wherein a protrusion is provided and a step portion that engages with the protrusion at a forward position of the operating lever is provided on the operating lever.