JPH0112724Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a simple protector mechanism for a push-button switch that is constructed as a fit-in structure and is replaceable in order to prevent erroneous operation of the push-button switch.

(b) Prior Art and Problems In a conventional protector switch, the main body of the switch is processed so that a cover made of synthetic resin, such as plastic, is opened and closed by the force of a spring.

A side sectional view of the protector mechanism of such a pushbutton switch is shown in FIG. 1 is a key top of a push button switch; 2 is a cover made of synthetic resin, such as plastic; 3 is a hinge for attaching the cover 2 to the key top of the switch; 4 is a coiled spring that always presses the cover 2 in a closed state; 8 is the switch mounting panel surface.

The key top 1 of the push button switch is normally covered with a cover 2, and the cover 2 is covered with a coil spring 4.
It is fixed to the key top 1 with a hinge 3 connected to the key top 1. Therefore, key top 1 of the push button switch cannot be pressed as it is. Therefore, when pressing the pushbutton switch,
The cover 2 cannot be pushed unless it is released. That is, when pressing the key top 1 of the push button switch, the cover 2 is opened in the direction of the arrow A against the spring force of the coiled spring 4, and the key top 1 of the push button switch is pushed down in the direction of the arrow B to turn off the push button switch. If the user releases his/her hand after activating the circuit interlocking with the main body, the cover 2 returns to its current state due to the spring force of the coiled spring 4 and protects the key top 1 of the push button switch.

However, if the push button switch is pressed many times, cracks may occur in the cover 2. If a crack occurs in the cover 2, the entire switch must be replaced because the cover 2 is fixed to the hinge 3, which requires a large amount of man-hours to replace. Moreover, there were various problems such as being uneconomical because a push button switch could not be used.

(c) Purpose of the invention The object of the present invention is to solve the above-mentioned conventional problems and to provide a protector mechanism that allows the cover to be easily attached to and removed from the key top.

(d) Structure of the invention In order to achieve the above-mentioned object, the present invention is attached to the key top 1 of a push button switch provided protruding from the panel surface 8, and has a cover 2 attached to one side that can be opened and closed. , said key top 1
A frame 5 made of an elastic member is provided on the outside of the cover 2 and has an insertion hole 51 on one side. This is achieved by making contact with the surface 8 and inserting the rear end of the cover 2 into the insertion hole 51 so that it can be opened on one side.

(e) Embodiments of the invention Examples of the push button switch simple protector mechanism of the invention will be described in detail below with reference to the drawings.

FIG. 2 is a diagram for explaining one embodiment of the present invention, in which a is a perspective view of the cover, b is a perspective view of the frame,
c is a side sectional view showing the frame 5 and cover 6 attached to the switch body, d is a side sectional view with the cover 6 opened and the switch body pressed, and e is a perspective view of the cover 7 with a stopper 71 attached thereto. Note that the same parts as in FIG.
The frame 5 is provided with an insertion hole 51 into which the rear end of the frame 5 is inserted and fixed. Reference numeral 6 designates a cover made of synthetic resin, for example, an acrylic plate, molded into an L-shape, with a tip 61 serving as a stopper for the panel surface 8, and 7 a cover having a stopper 71 on the side surface.

The inner side of a frame 5 made of an elastic member such as soft rubber is formed so as to be in close contact with the outer side of the key top 1 of the push button switch with elastic force, and the frame 5 is inserted into the key top 1 of the push button switch through the insertion hole 51. When the cover 6 is inserted into the insertion hole 51 of the frame 5 after the frame 5 is fitted so that the top surface of the key top 1 is on the upper side and the top surface of the key top 1 is aligned with the top surface of the key top 1, the cover 6 is moved by the elastic force of the frame 5. As a result, the tip 61 of the cover 6 is pressed against the panel surface 8 as shown in FIG. 2c.

To press the push button switch here, pull up the cover 6 in the direction of arrow C against the elastic force of the insertion hole 51 of the frame 5, and then push the push button switch in the direction of arrow B. As shown in d, the key top 1 of the pushbutton switch enters the switch body and operates the circuit associated with the pushbutton switch.

If you release your hands from the key top 1 of the push button switch and the cover 6 at this point, the key top of the push button switch will remain in the pressed state and the cover 6 will return to its current state due to the elasticity of the insertion hole 51 provided in the frame 5. Since the key top 1 of the push button switch is in the depressed state, the cover 6 assumes an inclined shape.
Note that the cover 6 is not limited to the shape shown in FIG. 2a, but a more reliable protector effect can be obtained by using a cover 7 having a stopper 71 attached to the side surface as shown in FIG. 2e.

(f) Effects of the invention As is clear from the above explanation, the push button switch simple protector mechanism of the invention has the following effects:
Compared to the protector mechanism provided in the conventional push button switch, it is easier to replace when it is damaged and has a large economical effect.

[Brief explanation of the drawing]

Figure 1 is a side sectional view for explaining the protector mechanism of a conventional push button switch, Figure 2 is a diagram for explaining the simple protector mechanism of the push button switch according to the present invention, and Figures 2a and 2e are views of the cover. Figure 2b is a perspective view of the frame, Figure 2c is a side sectional view of the frame and cover attached to the key top of the switch,
FIG. 2d is a side view with the cover opened and the key top of the switch pressed. In the figure, 1 is the key top of the pushbutton switch, 2, 6, and 7 are covers, 3 is a hinge, 4 is a coiled spring, 5 is a frame, 51 is an insertion hole, and 8 is a panel surface.

Claims (1)

[Claims for Utility Model Registration] A pushbutton switch that is attached to a key top 1 protruding from a panel surface 8 and has a cover 2 attached to one side that can be opened and closed, wherein the outside of the key top 1 is elastic. A frame 5 made of an elastic member is provided, and the cover 2 is L-shaped, and the tip 61 of the L-shape is in contact with the panel surface 8. In addition, the push button switch simple protector mechanism is characterized in that the rear end of the cover 2 is inserted into the insertion hole 51 so that it can be opened on one side.