JPH07240131A - Switch - Google Patents

Abstract

PURPOSE:To provide a sufficient clicking feeling when the handle of a switch is rotated by providing a rotating operation shaft on the handle, providing a gear on the rotating operation shaft, and engaging an elastic engaging member with the groove of the gear. CONSTITUTION:In a switch 21, a rotating operation shaft 23 and a gear 24 are integrally formed on a handle 22, and the shaft 23 and the gear 24 are cooperated to each other by rotating the handle 22. A contact brush 30 provided on a contact brush mounting part 31 mounted on the shaft 23 is cooperated with the shaft 23, and selectively makes contact with a fixed contact 28 to change the ON/OFF of the switch. In a clock mechanism 32, an engaging member 25 curved in the center so as to be engaged with the groove 24a of the gear 24 when the handle 22 is rotated is once separated from the groove 24a according to the rotation of the handle 22, and again engaged with the groove 24a, whereby a sufficient clicking feeling can be provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch having a click mechanism for turning the switch on and off by a turning operation.

[0002]

2. Description of the Related Art A conventional switch will be described with reference to FIGS. FIG. 4 is a sectional view of a conventional switch, and FIG. 5 is a sectional view taken along the line BB ′ of FIG. 2 in FIGS. 4 and 5
A knob 3 is a rotary operation shaft, 4 is a gear provided on the rotary operation shaft 3 and cooperating with the rotary operation shaft 3, and a groove 4a is formed on the outer periphery thereof. Is a metallic spherical member urged by the plate-like urging member 5 into the groove 4a, 7 is a fixed contact, 8 is a contact brush provided on the gear 4 and selectively contacting the fixed contact 7, and 9 is a case. is there.

In the switch 1 described above, a knob 2 and a gear 4 are attached to both ends of the rotary operation shaft 3, and the rotary operation shaft 3 and the rotary operation shaft 3 are rotated by rotating the knob 2. The provided gear 4 cooperates, and further, the gear 4
The contact brush 8 provided in the above-mentioned structure cooperates with the gear 4 and selectively contacts the fixed contact 7 to switch the switch on and off.

Further, in the switch 1, the plate-like urging member 5 is integrally formed on the inner side surface of the case 9, and the accommodating portion 1 is formed.
0a, and the spherical member 6 is fitted into a hole 11 provided in the wall portion 10 of the storage portion 10a so as to come into contact with the plate-shaped biasing member 5. Thereby, the spherical member 6
Are positioned horizontally and vertically.

In the click mechanism 12 of the switch 1, when the knob 2 is rotated, the spherical member 6 urged by the plate-like urging member 5 is temporarily moved by the gear 4 that is in cooperation with the knob 2. After being pressed in the direction of the plate-shaped biasing member 5 away from the groove 4a, the plate-shaped biasing member 5 again biases the groove 4a, whereby the knob 2 is rotated. You can get a click feeling when.

[0006]

However, in the above-mentioned conventional switch 1, the knob 2 and the gear 4 have the rotating operation shaft 3.
Since the knobs 2 are attached to both ends of the gear 4, the knob 2 is repeatedly rotated to cause play in the portion connecting the knob 2 and the gear 4, and the area where the spherical member 6 contacts the groove 4a of the gear 4 is reduced. Since the load is small, only a small load is applied, and the load is less likely to be applied to the contact surface between the spherical member 6 and the groove 4a, the click feeling obtained when the knob 2 is rotated cannot be sufficiently obtained.
Furthermore, since the spherical member 6 is used for the click mechanism 12,
There is a problem that the spherical member 6 rolls during assembly, which makes it difficult to assemble.

[0007]

In order to solve the above problems, according to the present invention, in a switch having a click mechanism for switching the switch on and off by a rotating operation, the click mechanism has a rotating operation shaft on a knob. A switch having a structure in which a gear is provided on the rotation operation shaft and a single plate-shaped engaging member having elasticity is engaged with the groove of the gear.

[0008]

According to the above construction, since the rotary operation shaft and the gear are integrally formed on the knob, there is no backlash, and the load is always applied to the contact surface between the engaging member and the gear groove. Is provided as a single member so as to engage with the groove of the gear, the area of contact with the groove of the gear increases,
A large load is applied, and a sufficient click feeling can be obtained when the knob is rotated. Further, since the click mechanism 12 uses the engaging member provided as a single member instead of using the biasing member and the spherical member, it can be easily assembled.

[0009]

EXAMPLES Next, examples of the present invention will be described. 1 is a sectional view of a switch of an embodiment according to the present invention, and FIG. 2 is a sectional view taken along the line AA 'of FIG.

In FIGS. 1 and 2, 22 is a knob, 23 is a rotary operation shaft, 24 is a gear provided on the rotary operation shaft 23 and cooperating with the rotary operation shaft 23, and a groove 24a is formed on the outer circumference. Two
Reference numeral 5 is a plate-like urging member whose central portion is bent so as to engage with the groove 24a of the gear 24, 27 is a substrate, 28 is a fixed contact provided on the substrate, 29 is an urging member mounting portion, 30 Is a contact brush that selectively contacts the fixed contact 28, and 31 is a contact brush attachment portion that fixes the contact brush 30 and is attached to the rotating operation shaft 23.

The switch 21 has a knob 22 and a rotary operation shaft 2
3 and a gear 24 are integrally formed, and by rotating the knob 22, the rotation operation shaft 23 and the rotation operation shaft 23
The gear 24 provided on the rotary shaft
The contact brush 30 provided in the contact brush attachment portion 31 attached to the contact point 3 cooperates with the rotary operation shaft 23 to generate the fixed contact 2
By selectively contacting the switch 8, the switch is turned on and off.

The click mechanism 32 of the switch 21 and the contact brush 30 that comes into contact with the fixed contact 28 are positioned diametrically opposite to the center of the switch 21, and maintain balance when the knob 22 is rotated.

FIG. 3 is a perspective view of a plate-shaped engaging member of the switch according to the present invention. The plate-shaped engaging member 25 is formed of a single member, and as shown in FIG.
The mold 33 provided at 9 positions the plate in the horizontal direction, and the knob 22 positions it in the vertical direction.

The click mechanism 32 of the switch 21 has a plate-like engaging member 25 whose central portion is bent so as to engage with the groove 24a of the gear 24 when the knob 22 is rotated.
However, the groove 24 is temporarily moved by the gear 24 that cooperates with the knob 22.
It is configured to separate from 4a and engage with the groove 24a again.

According to this structure, since the plate-like engaging member is provided as a single member so as to engage with the groove 24a of the gear 24, the engaging surface 25a of the plate-like engaging member 25 is provided. And groove 2
Since the contact area with 4a is increased and a large load is applied, the rotary operation shaft 23 and the gear 24 are integrally formed and provided on the knob 22, the rattling does not occur, and the contact surface between the engaging member and the groove of the gear is always provided. Therefore, a click feeling when the knob 22 is rotated can be sufficiently obtained. Also,
Instead of using the biasing member and the spherical member for the click mechanism 32, since the engaging member provided by a single member is used,
Since no spherical member is used, assembly workability is also improved.

[0016]

As described above, according to the present invention, there is an advantage that a sufficient click feeling can be obtained when the knob of the switch is rotated and the assembling workability is improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a switch according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line A-A ′ in FIG.

FIG. 3 is a perspective view of a plate-shaped engaging member of the switch according to the present invention.

FIG. 4 is a cross-sectional view of a conventional switch.

5 is a sectional view taken along line B-B ′ of FIG.

[Explanation of symbols]

 1, 21 Switch 2, 22 Knob 3, 23 Rotating operation shaft 4, 24 Gears 4a, 24a Groove 5 Plate-shaped biasing member 6 Spherical member 7, 28 Fixed contact 8, 30 Contact brush 9 Case 10 Wall 10a Storage Part 11 Holes 12, 13 Click mechanism 25 Plate-shaped engaging member 25a Engaging surface 27 Substrate 29 Engaging member attaching part 31 Contact brush attaching part 32 Mold

Claims (1)

[Claims] 1. A switch having a click mechanism for switching ON / OFF of a switch by a rotating operation, wherein the click mechanism has a rotating operation shaft on a knob, and a gear is provided on the rotating operation shaft. A switch configured to engage a single engaging member having elasticity in the groove of.