JPS6152490B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a knob device that can perform push and slide operations.

Conventional configurations and their problems In general, automotive switches are constructed by rotating and pressing the tip of the turn signal control lever to operate a window watch switch or a wiper switch. ing.

Conventionally, this type of picking device is shown in Figures 1 to 4.
It was configured as shown in the figure.

That is, it has a bearing boss 1 in the center and a cylindrical guide part 2 around the bearing boss 1,
A notch 3 in a part of the guide part 2 constitutes a stopper for regulating the amount of rotation, and a board 7 is provided with a protrusion 7 having a horizontal hole 6 for storing a coil spring 4 and a ball 5 in the middle of the notch 3. The portion 8 has a central shaft 9 fitted into the bearing boss 1 at the center of the lower surface,
A knob 11 having a peripheral wall 10 extending downward around the periphery
is incorporated. That is, the E-ring 12 is installed in the part of the central shaft 9 that protrudes from the lower surface of the bearing boss 1, and the base plate 8 and the knob 1 are installed around the bearing boss 1.
The ball 5 is displayed from the horizontal hole 6 of the protruding piece 7 with the coil spring 13 interposed between the balls 1 and 1.
V-shaped groove 1 provided on the inner surface of the peripheral wall 10 of the knob 11
4, and locking protrusions 15 are provided at both ends of the V-shaped groove 14 and protrude inward.

When the knob 11 is pressed in this configuration, the coil spring 13 is elastically contracted and the knob 11 moves downward while the peripheral wall 10 is guided by the guide portion 2.
When the lower end surface of the coil spring 1 slides so as to come into contact with the upper surface of the base plate part 8 and the pressing force is released, the coil spring 1
3 returns to upward movement.

If the knob 11 is rotated clockwise or counterclockwise, the ball 5 will move into the V-shaped groove 1 shown in FIG.
A coil spring 4 is installed in the horizontal hole 6 in order to move the coil spring 4 from the deepest position to the gradually shallower position shown in FIG.
pushed against the Then, the locking protrusion 15 comes into contact with the end face of the notch 3 to restrict rotation. When the rotational force of the knob 11 is released in this state, the ball 5 is pushed out of the horizontal hole 6 by the elastic force of the coil spring 4, so that the knob 11 returns to rotation in the opposite direction.

In this way, the knob 11 is configured to be able to rotate and press and slide, but the coil spring 4,
Ball 5, horizontal hole 6, protrusion 7, coil spring 1
3, a large number of parts are required, the structure is complex, and assembly is time-consuming, which is disadvantageous in terms of cost.

OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks, the present invention provides a knob device having a simple structure and improved ease of assembly.

Structure of the Invention In order to achieve the above object, the present invention provides a bearing boss and a base plate having a protruding cylindrical guide, a knob having a central axis and a peripheral wall, which is pressed and slid through a coil spring. The coil spring is rotatably assembled, and several spring holding bosses are provided on opposing surfaces of the base plate and the knob, and both ends of the coil spring are held between the spring holding bosses.

It is easy to assemble because it can be constructed from three types of parts: the base plate, the knob, and the coil spring.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 5 to 7 of the drawings.

Reference numeral 16 denotes a base plate part, and the base plate part 16 is provided with a bearing boss 17 on the upper center surface, and a guide part 18 made of a concentric cylindrical body is provided at a constant distance from the bearing boss 17. Several spring retaining bosses 19 are provided between the bearing boss 17 and the guide portion 18.

A knob 20 is incorporated into such a substrate portion 16. This knob 20 has a central shaft 21 that extends downward in the center and is fitted into the bearing boss 17 of the base plate part 16, a peripheral wall 22 that protrudes downward on the outer periphery, and a lower surface of the intermediate part between the central shaft 21 and the peripheral wall 22. Several spring holding bosses 23 are provided.

The knob 20 is assembled into the base plate 16 by fitting one end of the coil spring 24 into the spring holding boss 19 of the base plate 16, and then fitting the center shaft 21 of the knob 20 into the bearing boss 17. At this time, adjust the position of the knob 20 by turning it so that the other end of the coil spring 24 fits into the spring holding boss 23 of the knob 20, and when the positions are aligned, insert the center shaft 21 of the knob 20 into the bearing boss 17. When the lower end of the central shaft 21 protrudes from the bearing boss 17, an E-ring 25 is inserted into the lower end of the central shaft 21 to prevent the knob 20 from coming off, and the assembly is completed.

With this configuration, if the knob 20 is pressed, the peripheral wall 22
is guided by the guide portion 18 of the base plate portion 16 and slides downward while elastically contracting the coil spring 24 until the lower end of the peripheral wall 22 comes into contact with the upper surface of the base plate portion 16. When the pressing force is released, the knob 20 returns to its upward movement due to the accumulated elastic contraction force of the coil spring 24.

Next, when the knob 20 is rotated clockwise from the neutral position shown in FIG. 6, the coil spring 24 is twisted and bent in the rotational direction as shown in FIG.

When the rotational force of the knob 20 is released in this state, the elastic force of the coil spring 24 in the winding direction returns to the neutral position shown in FIG.

The same operation is also performed when the knob 20 is rotated counterclockwise.

Regarding the regulation of the amount of rotation of the knob 20,
Although not shown, the guide portion 18 is similar to the conventional example.
What is necessary is to provide a notch in the knob 20 and add a configuration in which an engaging protrusion protrudes inward from the inner surface of the peripheral wall 22 of the knob 20.

Effects of the Invention As the knob device of the present invention is constructed as described above, it can be composed of three types of parts: the base plate, the knob, and the coil spring, so it is easy to assemble, has high workability, and is extremely advantageous in terms of cost. Then,
It has great practical value.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a conventional knob device, Fig. 2 is a cross-sectional view of half of the same, Figs. FIGS. 6 and 7 are longitudinal cross-sectional views showing an embodiment of the knob device, and FIGS. 6 and 7 are cross-sectional views showing the operation of the main parts thereof. 16... Board part, 17... Bearing boss, 18... Guide part, 19... Spring holding boss, 20... Knob, 21... Center shaft, 22... Peripheral wall, 23... Spring holding boss, 24... Coil spring, 25...
E-ring.

Claims (1)

[Claims] 1. A knob having a central axis and a peripheral wall is installed in a base plate part protruding from a bearing boss and a cylindrical guide part so as to be able to press and slide and rotate via a coil spring. A gripping device in which several spring retaining bosses are provided on opposing surfaces, and both ends of a coil spring are held between the spring retaining bosses.