JP4778624B2 - Switch device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a switch device such as a hand-held operation device or a push button switch for operating an industrial robot or other industrial automatic machines.
[0002]
[Prior art]
As an example of the switch device, there is a hand-held operation device for operating a machine as shown in FIG. In such a switch device, there is a switch device in which the switch cover A indicating the name of the button can be replaced in order to meet the needs of various users.
[0003]
[Problems to be solved by the invention]
By the way, the structure in which the switch cover A is removed and the switch and the like inside the switch device body B are exposed is not waterproof. In order to solve this, it is conceivable to cover the above-mentioned switch with a waterproof sheet, but there is a problem that the operational feeling of the switch is not sufficiently transmitted to the operator by covering the switch with the waterproof sheet.
[0004]
The present invention has been made in order to solve the above-described problems, and it is possible to obtain a switch device in which a switch cover can be replaced, which is waterproof and dustproof, and the operation feeling is sufficiently transmitted to an operator. Objective.
[0005]
[Means for Solving the Problems]
The problem-solving means according to claim 1 is provided with a first resin sheet having a plurality of predetermined regions which are provided with characters, symbols or uneven portions indicating buttons and pressed by an operator according to these, and a plurality of openings. A cover body on which the first sheet is affixed; one end of the cover body in the opening of the cover body is positioned on the center side of the opening; the other end is integrally connected to the cover body; A switch cover having a plurality of projections that are covered by each of the predetermined regions and projecting on the back surface of the predetermined region, a substrate, and a pressing portion that is protruded from the main surface of the substrate and pressed A plurality of tact switches for switching electrical states and a plurality of openings are provided, and each of the plurality of tact switches is located in the plurality of openings with the main surface of the substrate attached to the inner surface. Body and the a switch device body having a second resin sheet from the upper surface of the housing to cover the pressing portion in the plurality of openings, wherein the switch cover, the plurality of protrusions wherein the switching device body A switch device for operating an industrial robot or other industrial automatic machine, which is detachably attached to the switch device body so as to face the pressing portions of the plurality of tact switches via the second resin sheet. is there.
[0006]
According to a second aspect of the present invention, the area of the end surface of the convex portion on the second resin sheet side is smaller than the area of the end surface on the first resin sheet side.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
A switch device according to an embodiment of the present invention will be described. Here, a case where the present invention is applied to a hand-held operating device for operating the machine shown in FIG. 6 will be described as an example of the switch device.
[0009]
FIG. 1 is a partial plan view showing a switch cover A according to an embodiment of the present invention, and FIG. 2 is a partial side sectional view thereof. The switch cover A according to the embodiment includes a cover body 5 and an embossed sheet 6 (first resin sheet). The cover body 5 is made of a thin plate-like resin, and is provided with an opening 5c in a matrix shape, and a protrusion 5a that is integral with the cover body 5 is provided at the center of the opening 5c. An embossed sheet 6 is attached to the upper surface of the cover body 5. The embossed sheet 6 is made of a thin resin, and the uneven portion 6a is formed by embossing. Characters and symbols (not shown) indicating the type of button are written on the top surface of the concavo-convex portion 6a, and the convex portion 5a contacts the back surface of the concavo-convex portion 6a.
[0010]
On the other hand, FIG. 3 is a partial plan view showing the switch device main body B of the embodiment of the present invention, and FIG. 4 is a partial side sectional view thereof. The switch device main body B according to the embodiment includes a housing 1, a circuit board 2, a switch 3, a prevention sheet 4 (second resin sheet), and the like. The housing 1 has openings 1a in a matrix. Switches 3 are projected in a matrix on the upper surface of the circuit board 2. The switch 3 is positioned at the center of the opening 1 a with the circuit board 2 attached to the inside of the housing 1. The prevention sheet 4 is made of a thin resin, covers and seals the pressing portion 3 a in the opening 1 a from the upper surface of the housing 1, and comes into contact with the pressing portion 3 a protruding from the upper side of the switch 3.
[0011]
The pressing part 3a of the switch 3 and the convex part 5a of the cover body 5 have, for example, the same degree of hardness. Moreover, the pressing part 3a of the switch 3 and the end surface on the embossed sheet 6 side of the convex part 5a of the cover body 5 have, for example, the same area.
[0012]
A state in which the switch cover A is attached to the switch device main body B is shown in FIG. In this state, the end surface 5 b of the convex portion 5 a faces the pressing portion 3 a of the switch 3 of the switch device main body B through the prevention sheet 4. The switch cover A can be detachably attached to the switch device main body B.
[0013]
Next, the operation will be described. In a state where the switch cover A is attached to the switch device main body B, the operator presses the desired uneven portion 6 a of the embossed sheet 6. When the concavo-convex portion 6 a is pressed, the end surface on the embossed sheet 6 side of the convex portion 5 a receives a pressing force from the concavo-convex portion 6 a and the end surface 5 b presses the prevention sheet 4. The pressing portion 3a of the switch 3 receives a pressing force from the prevention sheet 4, and the electrical state is switched from off to on, for example.
[0014]
If the cover body 5 is not provided and the embossed sheet 6 and the prevention sheet 4 are in direct contact with each other, the operational feeling of the pressing portion 3a of the switch 3 depends on the thickness of the prevention sheet 4 and the embossed sheet 6 combined. Not fully communicated. On the other hand, by providing the convex portion 5 a of the cover body 5, the operational feeling of the convex portion 5 a is sufficiently transmitted to the operator via the thin embossed sheet 6 instead of the pressing portion 3 a. In addition, the switch cover A is replaceable and the prevention sheet 4 is provided, so that the waterproof and dustproof properties are obtained.
[0015]
Further, it is desirable that the area of the end surface 5b on the prevention sheet 4 side of the convex portion 5a is smaller than the area of the end surface on the embossed sheet 6 side. According to this, the pressing force received by the end surface on the embossed sheet 6 side of the convex portion 5a is concentrated on the end surface 5b having a small area and is applied to the pressing portion 3a via the prevention sheet 4, so that the pressing force from the operator is reduced. It is sufficiently transmitted to the pressing portion 3a of the switch 3, and the electrical state can be switched more reliably.
[0016]
The switch 3 is preferably a tact switch. According to this, since the tact switch is thin, the thickness of the switch cover A, the prevention sheet 4 and the switch 3 can be reduced, and the switch device can be thinned. In particular, since the tact switch has a generally small operational feeling, the tact switch can be operated in a small manner by combining it with the convex portion 5a in which the area of the end surface 5b on the prevention sheet 4 side is smaller than the area of the end surface on the emboss sheet 6 side. The feeling can be transmitted to the operator.
[0017]
【The invention's effect】
According to the first aspect of the present invention, the switch cover can be replaced, is waterproof and dustproof, and the operation feeling is sufficiently transmitted to the operator. Moreover, the some convex part protrudingly provided by the cover main body at the back surface of a 1st resin sheet can be provided. Since the switch is a tact switch, the switch device can be thinned.
[0018]
According to the second aspect of the present invention, the pressing force from the operational feeling is sufficiently transmitted to the switch, and the electrical state can be switched more reliably.
[Brief description of the drawings]
FIG. 1 is a partial plan view showing a switch cover according to an embodiment of the present invention.
FIG. 2 is a partial side sectional view showing a switch cover according to the embodiment of the present invention.
FIG. 3 is a partial plan view showing the switch device main body according to the embodiment of the present invention.
FIG. 4 is a partial side sectional view showing the switch device main body according to the embodiment of the present invention.
FIG. 5 is a partial side sectional view showing the switch device according to the embodiment of the present invention.
FIG. 6 is a plan view of the handheld operating device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case, 1a Opening part, 2 Circuit board, 3 Switch, 4 3a Pressing part, 4 Waterproof sheet, 5 Cover main body, 5a Convex part, 5b End surface, 5c Opening part, 6 Embossed sheet, 6a Irregular part, 1 Case 2a Rotating cover, 2b rod, 2c switch, 3 operation part, A switch cover, B switch device main body.

Claims (2)

A character, symbol or uneven portion indicating a button is provided, and a first resin sheet having a plurality of predetermined regions pressed by an operator according to these, a plurality of openings are provided, and the first sheet is attached One end of the cover body and the opening of the cover body are positioned on the center side of the opening, and the other end is integrally connected to the cover body, and is covered by each of the predetermined regions of the first sheet. A switch cover having a plurality of convex portions projecting from the back surface of the predetermined region;
There are provided a substrate, a plurality of tact switches that protrude from the main surface of the substrate and switch the electrical state when the pressing portion is pressed, and a plurality of openings, and the main surface of the substrate is attached to the inner surface A switch device body having a housing in which each of the plurality of tact switches is located in the plurality of openings in a state of being covered, and a second resin sheet that covers the pressing portion in the plurality of openings from an upper surface of the housing; ,
With
The switch cover is
The plurality of convex portions are detachably attached to the switch device body while facing the pressing portions of the plurality of tact switches of the switch device body via the second resin sheet,
Switch device for operating industrial robots and other industrial automatic machines.  2. The switch device according to claim 1, wherein an area of an end surface on the second resin sheet side of the convex portion is smaller than an area of an end surface on the first resin sheet side.

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