JPS6039959Y2 - actuator - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an actuator in which the number of parts such as a fulcrum shaft and pins is reduced in a switch without an actuator.

Conventionally, when using a microswitch or the like without an actuator, an actuator is used in some form from outside the switch.

In this case, when using a fulcrum for the actuator, a pin or shaft is used in addition to the switch.

For this reason, many parts such as shafts, pins, plates, etc. are used, resulting in a disadvantage that the structure becomes complicated and expensive.

To explain such a conventional example with reference to FIG. 1, a is a switch, a/ is a pressing part provided on switch a and opens and closes the switch when pressed, and b is an actuator provided separately from the switch. .

This actuator b is provided with a lever C at one end and a plate spring d that contacts the pressing part j of the switch a at the other end, and the actuator b is provided with a lever C at one end and a plate spring d that contacts the pressing part j of the switch a. It is supported by a shaft or pin at approximately the middle portion.

A spring f is stretched on the other end of the actuator b where the plate spring d is provided.

This invention provides an actuator with a reduced number of parts compared to the conventional products as described above.

This invention will be explained below with reference to Figs. 3, 4, and 2. Fig. 3 shows the actuator member, which includes a sheet metal material 3 bent approximately at the center and a metal plate 3 joined to one end 5 of the actuator member. It is composed of a leaf spring material 4.

FIG. 4 shows the state in which the actuator member 2 is attached. By bending the other end of the plate spring material 4 and fixing the fixing part 8, one end of the plate spring material 3 can be fixed. The pressing portion 1a of the switch is held pressed by force.

FIG. 2 shows an operating state in which the actuator member 2 operates the switch 1, and the other end 3a of the sheet metal material 3 is shown in FIG.
By pressing in the direction of arrow A, the bent portion 3a rotates in the direction of arrow B using the corner of the switch 1 as a fulcrum 7, and the other end 5 of the sheet metal material releases the pressing hold of the pressing portion 1a.

Note that when the pressure on the other end side 3a of this sheet metal material 3 is released, the restoring force of the leaf spring material 4 causes the actuator member 2 to return to the fourth position.
Return to the state shown in the diagram.

As mentioned above, this idea does not use a separate fulcrum member, but instead uses a part of the switch as the fulcrum of the actuator.
It can be manufactured at low cost by reducing the number of parts, and since no separate spring is used, it has the effect of reducing failures.

[Brief explanation of the drawing]

Fig. 1 is a front view of the conventional example, Figs. 2 and 4 are front views showing the installed state of the actuator of the present invention, and Fig. 3 is a front view of only the actuator. 1 is a switch, and 1a is a pressing part. , 2 is an actuator member, 3 is a sheet metal material, and 4 is a leaf spring.

Claims (1)

[Scope of utility model registration request] An actuator member formed of a bent sheet metal material and a plate spring material joined at one end side of the sheet metal material, the other end side of the plate spring material being fixed, and the spring biasing of the plate spring causing the above One end of the sheet metal material presses and holds the pressing part of the switch, and by pressing the other end of the sheet metal material, the bent part of the sheet metal material rotates about the corner or face of the switch as a fulcrum, thereby holding the pressing part. An actuator characterized by being released.