JPH0316179Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a swing type switch, and particularly to a mechanism for regulating the maximum tilt angle of an operating member during operation.

PRIOR TECHNOLOGY A swing type switch equipped with a substantially rod-shaped operating member is
By tilting the operating member in any direction, the switches arranged in the same direction are closed. In this type of swing type switch, the maximum tilt of the operating member is regulated by a part of the operating member coming into contact with a part of the case supporting the operating member or a part of the printed circuit board on which the switch is installed. The structure was as follows.

Problems that the invention aims to solve: For this reason, when operating the operating member, a part of it frequently collides with the case or the printed circuit board, causing abnormal noise and a large impact, resulting in a poor feel. Furthermore, there is a problem in that the portion of the case or printed circuit board that the operating member collides with is unnecessarily damaged.

The object of the present invention is to provide a swing type switch that solves the above problems.

Means for Solving the Problems The present invention includes a case having a bearing portion, and a plurality of movable contacts arranged around the bearing portion and fixed within the case, and provided on a rubber base member. a switch, a pressing part which is supported by the bearing part so as to be swingable in any direction, and which selectively presses and closes the plurality of switches by tilting the switch in a desired direction, and an abutting part. When the operating member is operated, the rubber base member provided with the movable contacts of the plurality of switches receives the abutting portion and moves the operating member further. A stopper portion for limiting the inclination of the operating member is provided, and a lower surface of the contact portion of the operating member is configured as an inclined surface that can come into surface contact with the stopper portion.

Function Since the stopper part is made of rubber, it limits the generation of abnormal noise during impact and also alleviates the impact.

The configuration in which the stopper part is a part of the base member,
Eliminates the need for dedicated stopper parts.

The inclined lower surface of the abutting part of the operating member realizes surface contact between the abutting part and the stopper part, thereby making the stopper part less susceptible to wear.

Embodiment Next, an embodiment of the swing type switch according to the present invention will be described.

As shown in FIGS. 1 and 2, the swing type switch 1 has a case 3 formed by combining an upper half 2a and a lower half 2b, and an operating rod 4.

A pivot bearing portion 5 is provided protruding from the lower half 2b. Also, on the lower half 2b is a printed circuit board 6.
and a base 7 made of silicone rubber are stacked and fixed. Around the pivot bearing part 5, four switches 8a, 8b, 8c, and 8d are arranged on a circle centered on the pivot bearing part 5 at equal angular intervals. The switches 8a to 8d are connected to the printed circuit board 6, respectively.
It consists of upper fixed contacts 9a to 9d and movable contacts 10a to 10d on the lower surfaces of the protrusions 7a to 7d of the rubber base 7.

The operating rod 4 has a handle 1 consisting of a main body 11, which is a molded product of polyacetal resin, for example, and a pair of handle halves 13a, 13b screwed to a shaft portion 11b, which will be described later, with screws 12a, 12b.
4 and more. The main body 11 has an inverted bowl-shaped spherical part 1
1a, and a shaft portion 1 extending upward from the spherical portion 11a.
1b, and a protrusion 11 hanging inside the spherical part 11a.
c, and a disk portion 1 extending to the outer periphery from the spherical portion 11a.
It consists of 1d. The disc portion 11d includes an annular portion 11e as an outermost contact portion, a cross-shaped beam 11f that supports the annular portion 11e, and a beam 1 adjacent in the circumferential direction.
Four pressing parts 11g to 11j arranged between 1f
It has a configuration consisting of the plate spring parts 11k to 11n. The leaf spring parts 11k to 11n have a substantially fan-shaped frame shape along the beam 11f and the annular part 11e, and each surround one pressing part. Further, the thickness t of the leaf spring parts 11k to 11n is set to be thinner than other parts, and the leaf spring parts 11k to 11n can be elastically bent in a direction perpendicular to the surface of the disc part 11d. That is, the main body 11
has a structure in which a part thereof has plate spring parts 11k to 11n that extend radially in four orthogonal directions and exhibit spring properties.

As shown in FIG. 2, the top of the operating rod 4 is provided with a push button member 15 and a switch 16 that is closed by pressing the push button member 15. The push button member 15 can be easily attached by inserting it from above into an opening 17 formed at the top of the handle half 13a.

As shown in FIG.
the outer surface of which is supported by the annular bearing portion 18 of the upper half 2a, and the recess 1 on the outer peripheral side of the annular portion 11e.
Pressing parts 11g to 1 in the circumferential direction using 1o
1j are positioned so as to face the protrusions 7a to 7d, respectively, and are attached so as to be swingable in any direction within a 360 degree range.

Here, locking portions 20a and 20b (others not shown) are formed to hang down from the upper half 2a so as to face the arcuate portions of the leaf spring portions 11k to 11n. In the state shown in FIG.
1k and 11m are respectively locked by locking portions 20a and 20b and are in a somewhat bent state. Other leaf spring part 1
1l and 11n are similarly locked by corresponding locking portions and are slightly bent. Each leaf spring part 11k to 11
The spring force of n is applied to each leaf spring plate 11k to 1 on the operating rod 4.
Applying force in the direction in which 1n extends,
The operating rod 4 is elastically held at a neutral position where the spring forces are balanced.

When the operating rod 4 is tilted in the direction of arrow _A1 in FIG. 1, the main body 11 is tilted with the bending of the leaf spring portion 11m, as shown in FIG. push. As a result, the movable contact 10a comes into contact with the fixed contact 9a, and the switch 8a is closed. When the operating force on the operating lever 4 is released, the operating lever 4 moves in the direction of the arrow mainly due to the spring force of the leaf spring portion 11m.
A Rotates in _two directions and returns to the neutral position shown in Figure 1.
When the operating rod 4 is tilted in the _two directions indicated by arrow A in Fig. 1,
As shown in FIG. 4, the main body 11 includes a leaf spring portion 11
It tilts with a deflection of k, and the pressing portion 11i presses the protrusion. As a result, the movable contact 10c comes into contact with the fixed contact 9c, and the switch 8c is closed. When the contact force on the operating rod 4 is released, the operating rod 4 is rotated in the direction of arrow _A1 mainly by the spring force of the leaf spring portion 11k, and returns to the neutral position shown in FIG. Operation rod 4
When the plate springs _11l and 11n are tilted in a direction perpendicular to the arrows A1 and _A2 , one of the leaf spring parts 11l and 11n is bent, and the spring force of the bent leaf spring parts causes the operating rod 4 to is returned to its neutral position. In addition,
Since the leaf spring portions 11k to 11n bend without making any noise, the operating rod 4 can be operated without making any noise.

Further, the rubber base 7 has a stopper portion 7e located directly below the annular portion 11e of the main body 11.
It is a shape that has . As shown in FIG. 3 and FIG.
When tilted to close a or 8c,
A part of the annular portion 11e is received to limit the operating rod 4 from tilting any further, and the maximum inclination angle of the operating rod 4 is set until the handle 14 of the operating rod 4 collides with the upper half 2a. limit to angles that are not
Here, since the stopper part 7e is made of rubber, the impact when the operating rod 4 is tilted to the maximum is alleviated.
Furthermore, no abnormal noise is generated, and the operating rod 4 can be operated with a good feel.

Further, the lower surface 11e ₁ of the annular portion 11e is formed as an inclined surface so as to come into contact with the stopper portion 7e over its entire width. This makes it difficult for the annular portion 11e and the stopper portion 7e to wear out, which improves the reliability of the swing switch 1.

Further, the above-mentioned stopper portion 7e is a part of the rubber base 7 and is not a dedicated member, which is preferable in terms of manufacturing cost of the swing switch 1.

Effects of the Invention As mentioned above, the swing type switch according to the present invention has the following features.

Since the stopper part is made of rubber and is a part of the base member, it is possible to eliminate the generation of abnormal noise and reduce the impact when operating the operating member, and it is possible to improve the reliability of the swing type switch. , this can be achieved at low cost without using special parts.

The abutting part and the stopper part are in surface contact, and although the stopper part is made of rubber, the stopper part can be made less likely to wear out, and in this respect, the reliability of the swing type switch can also be improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the state before operation of an embodiment of the swing type switch according to the present invention, and Fig. 2 shows the structure of the operating lever in Fig. 1, and the relationship between the operating lever, the rubber base, and the printed circuit board. An exploded perspective view showing the arrangement relationship, and FIGS. 3 and 4 are cross-sectional views showing the inside of the case when the operating rods are tilted in opposite directions. 1... Swing type switch, 3... Case, 4...
Operating rod, 5...Pivot bearing part, 6...Printed circuit board, 7...Rubber base, 7e...Stopper part, 8a-8d...Switch, 9a-9d...Fixed contact, 10a-10d...Movable Contact point, 11...
Main body, 11a... Spherical part, 11d... Disc part, 1
1e... Annular part (contact part), 11e ₁ ... Bottom surface, 1
4...Handle.

Claims (1)

[Scope of Claim for Utility Model Registration] A case having a bearing portion, a plurality of switches disposed around the bearing portion and fixed within the case, and having movable contacts provided on a rubber base member; The switch is supported by the bearing section so as to be able to swing in any direction, and has a pressing section and an abutting section that selectively press and close the plurality of switches by tilting the switches in a desired direction. When the operating member is operated, the rubber base member provided with the movable contacts of the plurality of switches receives the abutting portion, and further What is claimed is: 1. A swing-type switch, further comprising a stopper portion for limiting inclination, and a lower surface of the abutting portion of the operating member being an inclined surface capable of coming into surface contact with the stopper portion.