JPH0749705Y2 - Cam switch switching device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a feed mechanism of a cam switch switching device used for an operation unit such as a switchboard.

“Prior Art” As shown in FIGS. 8 and 9, a conventional cam switch switching device has a Genebus top cam 402 attached to a cam switch 401, and a Geneva top circular plate 40 driven by movement of a motor 3403.
4 rotates, and the pin 405 on the circular plate 404 moves the groove 40 of the cam 402.
By entering 2a, the cam 402 is intermittently moved, and the cam switch 401 is sequentially switched.

"Problems to be solved by the invention" The conventional cam switch switching device has the following drawbacks.

(1) The operation speed is slow because a geared motor is usually used to rotate the Geneva top.

(2) The stop position may exceed a predetermined rotation angle due to the inertia of the rotor of the motor or the circular plate, and the switching operation becomes unstable.

The present invention uses a solenoid as a power source,
It is an object of the present invention to provide a switching device that is fast in operation and can be operated at a stable rotation angle.

[Means for Solving the Problems] In order to achieve the above object, the present invention connects a disc provided with a plurality of holes on the circumference according to the operation angle to the operation shaft of a cam switch, A lever which is concentrically rotatable with the disk is arranged so as to face the disk, and a linear solenoid for selectively inserting a pin of an iron core into a hole of the disk is supported by the lever, and the lever is rotated. It is characterized by having a solenoid for transmitting power.

"Action" By doing this, the iron core pin of the linear solenoid attached to the lever is immediately connected to the disc of the cam switch,
With the solenoid for rotating the lever, the disc can be rotated immediately and without excess or deficiency by a predetermined operation angle.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is an external view showing a state before operation of the cam switch switching device of the present invention, FIG. 2 is a front view of the present invention, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. FIG. 5 is a view showing a state during operation of the present invention, and FIG. 5 is a sectional view taken along line BB in FIG.

As shown in FIGS. 1 to 3, the disc 1 is provided at the end of the operating shaft 101a of the cam switch 101 which can be operated by rotating the operating shaft 101a.
02 is fixed so that the centers thereof are the same, and a hole 102a is concentrically formed on the disc 102 in a circle concentric with the center of the operation shaft 101a.
Plurals are arranged according to the operation angle. A rotary solenoid 103 is provided on an extension of the operation shaft 101a, a lever 104 is fixed to the end of the output shaft 103a of the rotary solenoid 103, and a hole 104a is formed in the lever 104 at a position opposite to the hole 102a on the disc 102. Provide one.

The diameters of the two holes 102a and 104a are slightly larger than the outer diameter of the pin 105 so that the pin 105 can slide. Pin 1
05 is connected to the iron core of the linear solenoid 106,
The operation force of the linear solenoid 106 causes the two holes 102a,
The pins 104a are connected by the pin 105.

As shown in FIGS. 4 and 5, when the linear solenoid 106 is excited, the pin 105 is inserted into the hole 102a of the disc 102, and when the rotary solenoid 103 is subsequently excited, it is fixed to the output shaft 103a of the rotary solenoid 103. The lever 104 makes a rotational movement, and the disc 102 connected by the pin 105 is made to make a rotational movement by the operation angle of the cam switch 101, thereby performing the switching operation of the cam switch. When one cam switch switching operation is completed, the hole next to the hole 102a of the disc 102 is moved to the initial position of the operation. When the linear solenoid 106 is de-energized after the cam switch switching operation, the pin 105 causes the return spring 10
It comes out of the hole 102a by 7. Next, when the rotary solenoid 103 is excited, the lever 104 is returned to the position before the operation by a return spring (not shown), and the cam switch 101 and the disc 102 are left at the positions after the operation.

If the linear solenoid 106 is not excited, the cam switch switching operation will not be performed even if the rotary solenoid 103 rotates. The cam switches are sequentially switched by the above structure and operation.

In the embodiment, the rotary solenoid is used as the power source for the rotary operation, but the linear solenoid may be used in the same manner.

6 and 7 show an embodiment in which a linear solenoid is used as a power source.

As shown in the figure, the disc 302 is fixed to the end of the operation shaft 301a of the cam switch 301 so that the center is the same, and the hole 302a is formed in the disc 302 concentrically with the center of the operation shaft 301a.
Plural units are installed according to the operation angle of 1. The operating shaft 301a
A shaft 310 is separately provided on the extension line of the above, and a hole 304a is provided in a lever 304 rotatably connected to the shaft 310 at a position facing the hole 302a on the disk 302. Link 308 to the side of the lever 304
The linear solenoid 311 is provided through the two holes 302
A pin 305 is provided at a position where it can be inserted into a and 304a, and a linear solenoid 306 is provided at one end of the pin 305.

When the linear solenoid 306 is excited, the pin 305 moves to the disk 302.
Inserted in the hole 302a of, and fitted with some looseness,
When the linear solenoid 311 is excited, the lever 304 makes a rotational movement about the shaft 310 in the direction of the excited linear solenoid 311, and the disc 302 connected by the pin 305 is moved to the operating angle of the cam switch 301. The cam switch is switched by rotating only.

After the switching operation of the cam switch, when the linear solenoid 306 is excited, the pin 305 is pulled out from the hole 302a by the return spring 307. Next, when the linear solenoid 311 is de-energized, the lever 304 is returned to the position before the operation by the return spring (not shown), and the cam switch 301 and the disc 302 are left in the positions after the operation.

With the above structure and operation, the cam switches can be sequentially switched.

“Effect of Device” As described above, according to the present invention, there is an excellent effect like a switch.

(1) The operation speed is fast because an electromagnetic solenoid is used.

(2) Since the power source for the rotating operation is configured by the solenoid, it is possible to perform a stable switching operation without the risk of malfunction due to excessive rotation like a motor drive mechanism.

[Brief description of drawings]

FIG. 1 is an external view of a switching device for a cam switch according to the present invention, FIG. 2 is a front view of the present invention, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. FIG. 5 is a sectional view taken along the line BB in FIG. 101 ... Cam switch, 101a ... Cam switch operation shaft, 102 ... Disc, 102a ... Disc hole, 103 ... Rotary solenoid, 103a ... Rotary solenoid output shaft, 104 ... Lever, 104a ...... Lever hole, 105 ...... pin, 106 ...... linear solenoid, 107 ...... return spring. FIG. 6 is a front view of the present invention when a linear solenoid is used instead of a rotary solenoid, and FIG. 7 is a sectional view taken along the line CC of FIG. 301 …… cam switch, 301a …… cam switch operating shaft, 302 …… disc, 302a …… disc hole, 304 …… lever,
304a …… Lever hole, 305 …… Pin, 306 …… Linear solenoid, 307 …… Return spring, 308 …… Link, 310 ……
Axis, 311 ... Linear solenoid. FIG. 8 is a front view showing a conventional example. FIG. 9 is a sectional view taken along line DD of FIG.

Claims (1)

[Scope of utility model registration request] 1. A disc, which is connected to an operating shaft of a cam switch and has a plurality of holes on a circumference thereof, which are adapted to the operating angle of the cam switch, and which is arranged so as to face the disc and can rotate concentrically with the disc. Switch for a cam switch, which includes a simple lever, a linear solenoid that is supported by the lever and selectively inserts a pin of an iron core into the hole of the disk, and a solenoid that transmits power to rotate the lever. .