JPH0741895U - Waterproof push switch - Google Patents

Abstract

(57) [Abstract] [Purpose] A waterproof push switch that does not require fixing of the seal member and the push switch, secures the degree of freedom in assembly, is easy to assemble, and can visually check the ON / OFF state. Offer. [Structure] The seal member 20 is composed of a pressing portion 21 and an eaves portion 25, and the pressing portion 21 includes an external convex portion 22 protruding outward from the front panel 10, and a push switch S arranged in the front panel 10. Internal convex portion 23 for abutting
Consists of. The eaves portion 25 has a flexible portion 24 on the outer periphery of the pressing portion 21.
And is joined to the front panel 10. The flexible portion 24 of the eaves portion 25 is formed to have a smaller elastic force than the elastic material of the push switch S, and the push switch S
The internal convex portion 23 of the seal member 20 was placed in contact with the position of pressing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof push switch, and more particularly to a waterproof push switch that performs push-on and push-off in a power switch or the like.

[0002]

[Prior art]

 In the case of a commercially available push switch that is generally used for a power source, etc., as shown in FIG. 5, a hole 41 is opened at the position where the push switch of the enclosure (front panel) 40 is installed, and the push button is pushed into this hole 41. Although the switch S is disposed, the hole 41 formed at the location where the push switch S is disposed may be covered with a seal member (for example, a rubber component) 42 for waterproofing.

In such a case, the joint portion 44, which is formed larger than the hole 41 of the housing 40, is fixed to the back surface of the housing (front panel) 40 with an adhesive or the like, and water intrudes through the hole 41. In addition, the rubber part 42 has an external convex portion 42a protruding outward from the housing 40 and a push switch S arranged inside the housing 40 so that the push switch S can be operated from above the rubber part 42. And an internal convex portion 42b for contacting with. In order to ensure the interlock between the push switch S and the rubber component 42, when the push switch S is conventionally covered with the rubber component 42, the upper surface of the push switch S and the internal convex portion 42b of the rubber component 42 are brought into contact with each other. As the surface 43, some means for connecting the rubber component 42 and the push switch S by bonding, screwing or the like was required.

[0004]

[Problems to be solved by the device]

 In this way, in addition to the connection between the rubber part and the push switch, it is necessary to join the rubber part and the housing. Therefore, when assembling a product (for example, a surveying instrument), fix the rubber part and the push switch, and The work of joining the housing and the rubber component was necessary, and there was little freedom in assembly, and assembly was troublesome.

Further, in particular, a push switch of a type in which a pressed state is held and power is turned on, and a pressed state is restored to release the power by pressing again, does not fix a seal member and a switch top. In this case, there is a problem that it is difficult to make a distinction only by visually recognizing the rubber member connected to the enclosure from the outside.

[0006] An object of the present invention is to provide a waterproof push switch which is easy to assemble and which does not require fixing of a seal member and a push switch to secure freedom in assembly. Another object of the present invention is to provide an internal push switch, especially in a push switch of a type in which the power is turned on while the pressed state is held, and the pressed state is restored by releasing the power again. The vertical position of the seal member can be checked from the operating side in the same way as before, and the top of the seal member is on the same surface as the casing (front panel) when it is ON, and the seal is when it is OFF. It is an object of the present invention to provide a waterproof push switch capable of visually confirming the ON / OFF state because the top of the member is located at a position projecting to the front of the housing (front panel).

[0007]

[Means for Solving the Problems]

 The waterproof push switch according to the present invention is provided in a disposition hole formed in a housing, and the push switch is of a type that is held in a pressed state and is restored by being pushed by an elastic material. A waterproof push switch, comprising: a seal member that covers the hole of the housing on the push switch and is joined and fixed to the back surface of the housing, wherein the sealing member is an external protrusion protruding outward from the housing. And a pressing portion including an internal convex portion for contacting a push switch arranged inside the housing, and a pressing portion formed on the outer periphery of the pressing portion through a flexible portion and joined to the housing to form a housing. An eaves portion that closes the hole, the flexible portion of the eaves portion is formed to have a smaller elastic force than the elastic material of the push switch, and the flexible member of the eaves portion of the sealing member is pressed at a position where the push switch is pressed. internal It is characterized in that the convex portions are arranged in contact with each other. It is preferable that the seal member is formed such that the inner convex portion side is always elastically biased toward the push switch side.

[0008]

[Action]

 The waterproof push switch according to the present invention is provided with an eaves portion which is formed on the outer periphery of the pressing portion through a flexible portion and is joined to the enclosure body to close the hole of the enclosure body, and the flexible portion of the eaves portion is a push switch. Since the elastic force is smaller than that of the elastic material and the internal convex portion of the seal member is placed in contact with the push switch in the pressed state, when the push switch is in the lower position, Position the internal protrusion so that it presses against the top of the push switch.

When the push switch is pushed again and the push switch is moved by the elastic material, the push switch is made of a rubber material in order to make the elastic force weaker than that of the elastic material of the push switch, and is made thinner or longer than the eaves. Since the elastic force of the push switch is smaller than that of the elastic material of the push switch, the seal member moves as the push switch moves. This eliminates the need for joining the push switch and the seal member, increasing the degree of freedom in assembly. Further, since the seal member moves together with the push switch, the vertical position of the seal member can be confirmed as usual, and the ON / OFF state can be visually confirmed.

Further, if the inner convex portion side of the seal member is always elastically urged toward the push switch side, the degree of freedom in assembling increases in the allowable range of movement of the seal member, and the seal member and the push switch are attached. The degree of freedom in machining accuracy and assembly accuracy of the machine is increased.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. The parts, arrangements, etc. described below do not limit the present invention and can be variously modified within the scope of the present invention.

FIGS. 1 and 2 show an embodiment according to the present invention. FIG. 1 is an explanatory cross-sectional view of a main part showing an ON state of a waterproof push switch, and FIG. 2 shows an OFF state of FIG. It is a principal part cross-section explanatory drawing. In this example, a front panel of a surveying instrument will be described as an example of the case. The waterproof push switch S of this example is arranged inside the housing of a surveying instrument as a housing, and has the push switch S and the seal member 20 as main components.

That is, the switch arrangement hole 11 is formed in the front panel 10 of the surveying instrument as an enclosure. A push switch S is arranged in the switch arrangement hole 11, and the push switch S is fixed to the electronic board 12 by soldering or the like, and is configured to be turned on / off by pressing from above. Has been done. The push switch S itself has a well-known structure. When the push switch S is pressed, the movable part 13 is held in a pressed state, and when the push switch S is pressed again, the movable part 13 is pushed from an elastic material inside the push switch S. This is a type that returns to the upper side of FIG.

The seal member 20 of this example is made of a rubber material, and is made up of a pressing portion 21 and an eaves portion 25. The pressing portion 21 is made up of an external convex portion 22 and an internal convex portion 23. In the OFF state, the external convex portion 22 is formed so as to project outward from the front panel 10 as shown in FIG. 2, and the internal convex portion 23 is connected to the push switch S disposed inside the front panel 10. It extends to the push switch S side for contact.

The eaves portion 25 is formed on the outer periphery of the pressing portion 21 via the flexible portion 24. The eaves portion 25 is fixed to the back surface of the front panel 10 with an adhesive or the like, and closes the switch arrangement hole 11 formed in the front panel 10. The flexible portion 24 of the eaves portion 25 of this example is formed to have a smaller elastic force than the elastic material forming the push switch S.

The seal member 20 is arranged such that the internal convex portion 23 of the seal member 20 contacts the push switch S at the contact surface 14 in the position where the push switch S is pressed.

Next, the operation of the embodiment having the above configuration will be described. When the push switch S is in the lower position, that is, when it is pressed as shown by the arrow X in FIG. 1 and is in the ON state, the internal convex portion 23 of the seal member 20 contacts the movable portion 13 of the push switch S at the contact surface 14. In this state, the front panel 10 and the tops of the external convex portions 22 are placed substantially above the same plane.

When the movable portion 13 of the push switch S is moved upward by the elastic material when the push switch S is pushed again, the flexible portion 24 of the eaves portion 25 is elastically pushed by the elastic material of the push switch S. Is small, the seal member 20 moves upward together with the movement of the movable portion 13 of the push switch S. As a result, the external convex portion 22 of the seal member 20 projects toward the front side of the front panel 10 as shown in FIG. In this way, since the outer convex portion 22 of the seal member 20 moves together with the movable portion 13 of the push switch S, the vertical position of the seal member 20 can be confirmed as usual, and the ON / OFF state can be visually confirmed. It will be possible.

Since the internal convex portion 23 is in contact with the movable portion 13 in a state where the push switch S arranged in the front panel 10 is pressed in advance, the movable portion 13 of the push switch S and the seal member 20 are in contact with each other. This eliminates the need for joining to and increases the freedom of assembly. Further, when the inner convex portion 23 side of the seal member 20 is configured to constantly elastically push toward the push switch S side, the degree of freedom of assembly is increased in the allowable range of movement of the seal member 20, and the seal member 20 and The degree of freedom in processing accuracy and assembling accuracy of the push switch S is increased.

FIG. 3 and FIG. 4 are cross-sectional views of the essential parts of a waterproof push switch showing another embodiment of the present invention, in which the formation positions of the eaves portion and the flexible portion are changed. . It should be noted that the same reference numerals are given to the same arrangements, members and the like as in the above-mentioned embodiment, and the description thereof will be omitted.

[0021]

[Effect of device]

 The waterproof push switch according to the present invention is provided in a disposition hole formed in a housing, and the push switch is of a type in which the push state is held and the push state is restored by pushing it again. In a waterproof push switch including a seal member that is bonded and fixed to the back surface of the housing by covering the hole of the housing on the push switch, the sealing member includes an external convex portion protruding outward from the housing and a housing. A pressing part consisting of an internal convex part for contacting a push switch arranged inside the body, and a pressing part formed on the outer periphery of this pressing part via a flexible part and joined to the case to form a hole in the case. The flexible part of the eaves is formed to have a smaller elastic force than the elastic material of the push switch, and the inner convex part of the seal member is abutted at the position where the push switch is pressed. And configured Therefore, when the push switch is in the lower position, the internal convex part is located closer to the push switch, and when the push switch is pushed again and the push switch is moved by the elastic material, the flexible part of the eaves becomes the elastic material of the push switch. Therefore, since the elastic force is smaller, the seal member moves as the push switch moves.

As a result, it is not necessary to join the push switch and the seal member, and the degree of freedom in assembly is increased, and the assembly work is facilitated. Further, since the seal member moves together with the push switch, the vertical position of the seal member can be confirmed as usual, and the ON / OF F state can be visually confirmed.

If the inner convex portion side of the seal member is always elastically urged toward the push switch side, the degree of freedom of assembly is increased within the allowable range of movement of the seal member, and the seal member and push switch The degree of freedom in processing accuracy and assembly accuracy increases.

[Brief description of drawings]

FIG. 1 is a cross-sectional explanatory view of essential parts showing an ON state of a waterproof push switch showing one embodiment according to the present invention.

FIG. 2 is a cross-sectional explanatory view of essential parts showing the OFF state of FIG.

FIG. 3 is a cross-sectional explanatory view of a main part of a waterproof push switch according to another embodiment of the present invention.

FIG. 4 is a cross-sectional explanatory view of a main part of a waterproof push switch showing still another embodiment of the present invention.

FIG. 5 is a cross-sectional explanatory view of a main part of a push switch showing a conventional example.

[Explanation of symbols]

 10 Case (Front Panel) 11 Arrangement Hole (Switch Arrangement Hole) 12 Electronic Board 13 Movable Part 14 Contact Surface 20 Sealing Member 21 Pressing Part 22 External Convex Part 23 Internal Convex Part 24 Flexible Part 25 Eaves S Push Switch

[Procedure amendment]

[Submission date] March 25, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

Claims (2)

[Scope of utility model registration request] 1. A push switch of a type which is disposed in a disposition hole formed in a housing and is held in a pushed state and is restored by pushing again by an elastic material, and a push switch on the push switch. In a waterproof push switch provided with a seal member that covers the hole of the housing and is fixedly joined on the back side of the housing, the sealing member is disposed inside the housing, and an external convex portion protruding outward from the housing. A pressing portion composed of an internal convex portion for contacting the pushed switch, and an eaves portion which is formed on the outer periphery of the pressing portion via a flexible portion and is joined to the casing to close the hole of the casing, The flexible portion of the eaves portion is formed to have an elastic force smaller than that of the elastic material of the push switch, and the inner convex portion of the seal member is brought into contact with the push switch when the push switch is pressed. That I placed Waterproof push switch to the butterflies. 2. The waterproof push switch according to claim 1, wherein the seal member is such that the inner convex portion side is always elastically urged toward the push switch side.