JPS6232534Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an improvement of an electric shaver equipped with a push button switch.

[Conventional technology]

Traditionally, electric razors have been equipped with push-button switches to turn on and off the power, but while push-button switches can be operated with light finger movements,
It has the disadvantage that it tends to malfunction due to contact with other objects when carried or stored.

[Problem that the invention attempts to solve]

This invention focuses on this fact and attempts to provide an electric shaver that can prevent malfunctions by providing a locking means in the push button switch.

[Means and actions for solving the problem]

This invention is an electric shaver in which a push button is attached to a part of the outer surface of the main body case, and a power on/off switch connected to the push button and operated by pressing the button is provided inside the main body case. A sliding knob that slides in a direction perpendicular to the pressing direction of the push button is mounted on the outer surface, and moves integrally with the sliding knob to prevent movement of the periphery of the connection point between the push button and the power on/off switch. By providing the sliding knob with a locking piece and a stepped portion that catches the inner surface of the lower end of the push button on the sliding knob side when the sliding knob is moved, the operating form of the power on/off switch 5 and the locking knob is changed. , a push button type and a slide type, respectively, in order not only to prevent erroneous operation but also to increase the certainty of blocking when locking, the slide type knob 9 has a central part of the push button 8. The push button 8 and the switch 5 are prevented from moving in two places: the part that is directly pressed and the inner surface of the lower end. It is possible to prevent damage due to twisting of the connection portion with the push button 8, and to simplify the means for guiding the downward movement of the push button 8.

〔Example〕

The details will be explained below based on the drawings.

The drawing shows an electric shaver according to this invention, in which a main body case 1 has a switch panel 3 fitted into a window 2 on the front side, and a printed circuit board 4 arranged at the rear of the window 2. 4 is attached with a power on/off switch 5, a battery 6, and other circuit parts.

The switch panel 3 has an opening 7 into which a square push button 8 made of plastic and a sliding knob 9 are fitted one above the other. push button 8
is connected to the switch 5 by inserting a protrusion 10 provided at the center of the inner surface into a cylindrical mouth portion 11 protruding forward from the switch 5 so as to be freely retractable. It works when you press it inward, but it does not return to its original position even when you release your hand, and returns to its original position when you press it again.

The sliding knob 9 is fitted into the opening 7 so as to be slidable in the vertical direction perpendicular to the direction in which the push button 8 is pressed. The upper end of the locking piece 12 is adapted to engage and escape from a recess 13 on the lower surface of the cylindrical opening 11, for example, at the periphery of the connection point between the push button 8 and the switch 5 when the switch is in the closed state.

In such a case, by operating the sliding knob 9 downward, the lock piece 12 that moves together with the knob 9 will escape from the recess 13 of the connection part between the push button 8 and the switch 5, and at this time the push button 8 will be pressed. be able to. This pressing operation operates the switch 5 to turn on the power of the electric shaver. When the push button 8 is pressed again, the push button 8 returns to its original protruding state and turns off the power.

When the slide knob 9 is operated upward, the lock piece 1
2 engages in the recess 13 of the connecting portion, and the push button 8
is locked, making this push operation impossible. At this time, as shown in the figure, the step 14 formed on the upper edge of the slide knob 9 enters inside the lower end 8a of the push button 8 and receives the inner surface of the lower end 8a, so the push button 8 Coupled with the fact that the periphery of the connection point between the switch 5 and the switch 5 is blocked by the lock piece 12, the push button 8 can be prevented from being pressed more reliably. In addition, in order to prevent the sliding knob 9 from falling accidentally, two leg pieces 15, 1 are attached to the knob 9 in the illustrated example.
5 hangs down integrally, and when the knob 9 is operated upward, the leg pieces 15, 15 are attached to the protrusions 16, 1 on the main body case 1 side.
6 and is elastically deformed to form the projection 1.
6 and 16, and when the knob 9 reaches its upper limit of movement (lock position), it is locked onto the protrusions 16 and 16. In addition, the sliding friction between the knob 9 and the opening 7 of the slide panel 3 may be increased, or the degree of engagement of the lock piece 12 into the recess 13 may be increased.

In the above embodiment, the lock piece 12 engages and disengages with the nozzle portion 11 which is the connection between the push button 8 and the switch 5. However, the lock piece 12 may be configured to prevent movement of other parts of the connection between the push button 8 and the switch 5, such as the protrusion 10 protruding from the push button 8. Any structure that prevents movement of the periphery of the connection between the push button 8 and the switch 5 will suffice.

As explained above, according to the electric shaver of this invention, the push button 8 is attached to a part of the outer surface of the main body case 1, and the button 8 is connected to the push button 8.
Power on/off switch 5 operated by pressing
In this electric shaver, a sliding knob 9 is provided on the outer surface of the main body case 1 and slides in a direction perpendicular to the pressing direction of the push button 8.
At the same time, it moves integrally with the sliding knob 9 to connect the push button 8 and the power on/off switch 5.
A lock piece 12 that prevents movement of the periphery of the connection point with
The slide knob 9 is provided with a stepped portion 14 that receives the inner surface of the lower end 8a of the push button 8 on the slide knob 9 side when the slide knob 9 is moved. Malfunctions and damage to the pushbutton switch can be reliably prevented, and the structure thereof can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a perspective view illustrating an electric shaver according to this invention, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, FIG. 3 is a diagram of the lock operation of the push button switch, and FIG. FIG. 3 is an exploded perspective view of a sliding knob and a switch. 1...Main body case, 5...Power on/off switch, 8...Push button, 8a...Lower end, 9...Sliding knob, 12...Lock piece, 13...Connection part between switch and push button Recessed portion, 14...stepped portion.

Claims (1)

[Scope of utility model registration request] In an electric shaver, a push button 8 is attached to a part of the outer surface of the main body case 1, and a power supply opening/closing switch 5 connected to the push button 8 and operated by pressing the button 8 is provided inside the main body case 1. A sliding knob 9 that slides in a direction perpendicular to the pressing direction of the push button 8 is attached to the outer surface of the case 1, and moves together with the sliding knob 9 to connect the push button 8 and the power on/off switch 5. A lock piece 12 that prevents movement of the peripheral edge of the connecting portion, and a stepped portion 1 that receives the inner surface of the lower end 8a of the push button 8 on the sliding knob 9 side when the sliding knob 9 moves.
4 is provided on the sliding knob 9.