JPS6334812A - Waterproof switch - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a weak water switch that can be installed in a humid or humid place such as a bath.

[Background technology]

Conventional waterproof switches that can be installed in humid or watery places such as baths have an integrated switch body and a plate that is attached to the construction surface, and when the switch is not being operated, this plate and the switch body are The entire operating section is covered with a waterproof hood, or
Some models had a push button section on the front of the switch operation section made of rubber to create a waterproof structure.

However, these switch devices have the following problems. In other words, those equipped with a waterproof hood have poor operability as the hood must be opened and closed every time a switch is operated.
There were problems with the operation, such as a poor feeling of operation because it was operated through rubber.

[Purpose of the invention]

In view of these circumstances, this invention has good operability and
The purpose of the present invention is to provide a waterproof switch that is easy to operate.

[Disclosure of the invention]

In order to achieve such an object, the present invention includes a switch body that is fixed to a mounting surface via a mounting frame, and the switch body has a body that incorporates a contact opening/closing mechanism and a contact opening/closing mechanism. The body has an operation button for operating the mechanism, and the operation button faces an opening of a plate frame fixed to the front surface of the mounting frame, and the contact opening/closing mechanism is attached to the body in a watertight manner. A rubber cap that maintains its properties is provided, and when the operation button is pressed, the back side of the cap presses the contact opening/closing mechanism via the rubber camp, causing the contact to open/close. The gist is waterproof switches.

Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

1 to 6 show one embodiment of a waterproof switch according to the present invention. As shown in the figure, this waterproof switch includes a switch body 8. Switch body 8
is the upper body 81. It has a lower body 84 and an operation button 5. The lower body 84 is configured such that a contact opening/closing mechanism is installed therein through an upper opening 84a. The contact opening/closing mechanism is composed of a microswitch 85 and a switch operation plate 86. The switch 85 is fitted into a recess 84b formed inside the lower body 84 with the switch terminal 85a facing inward. The switch operation plate 86 is arranged so as to cover the upper part of the switch 85, and has two claws 8 formed on the back surface of the switch operation plate 86.
6a (only one side is exposed in the figure) is the recess 84
The lower body 84 is fitted into grooves 84c and 84c formed along the direction b, respectively. After the contact opening/closing mechanism is installed in this manner, the rubber cap 83 is placed over it. The rubber camp 83 is placed over the lower body 84 from the outside to maintain watertightness of the built-in contact opening/closing mechanism. Of course, when the upper bottom surface 83a of the rubber cap 83 is pressed, the switch operation plate 86 is bent, and the operator 85b of the switch 85 is pressed so that the contacts can be opened and closed. On the other hand, a terminal portion 87 is formed at the other end of the lower body 84. The terminal portion 87 includes a terminal plate 87a, a push plate 87d, and a terminal screw 8.
It consists of 7. The terminal plate 87a has countersunk screws 87
C is fixed to the lower body 84, and the bent piece 87e enters inside the lower body 84 and is connected to a lead wire (not shown) extending from the contact opening/closing mechanism described above. Further, the terminal plate 87a is configured to be electrically connected to the push plate 87d by inserting a terminal screw 87b therebetween by sandwiching a terminal from the power source therebetween. A frame body 82 is integrated into a side portion of the lower body 84. A notch 82 for draining water is provided in the frame portion in the width direction of the frame body 820.
b, 82b are formed, and locking holes 82a, 82a are formed in the longitudinal frame portion for locking locking claws 81a formed in the upper body 8] to integrate the upper body 81. has been done.

The upper body 81 has an opening 31 formed in the center of the plate frame 3 used for other wiring devices whose upper part is standardized.
It has a frame large enough to fit into the frame, and has an opening 81d in the center. The surface side periphery of the opening 81d is
It extends inward to form a flange 81e. Upper body 8
Projections 81C are formed on both sides in the width direction of 1.
A locking pawl 81a that is inserted into and locked in the locking hole 82a of the lower body 82 described above extends below the protruding portion 81c. A retaining protrusion 81b is provided on the upper edge of the protrusion 81c.
... is formed. This engagement protrusion 81b is adapted to fit into an engagement recess 21 of a mounting frame 2 of another standardized wiring device. In other words, the switch body 8 can be attached to the mounting frame 2.

The operation button 5 is inserted into the opening 81 from the back side of the upper body 81.
d so that the operating portion 5a protrudes from the surface of the upper body 81. The operating portion 5a has an outward flange portion 5b formed at the lower end periphery, and this flange portion 5b contacts the flange portion 81e of the upper body 81, so that it does not come out to the surface side of the upper body 81. . As will be described in detail later, a part of the corner of the flange portion 5b is provided with an operation fulcrum to ensure that the contact opening/closing mechanism can be pressed even if the pressing position of the operation button 5 is misaligned. A protrusion 54... is formed. On the other hand, a recess 56 large enough to fit a rubber cap 83 is formed in the center of the back surface of the operation button 5, and a protrusion 53 is formed in the center thereof. Four holes 52 are formed around the recess 56, and one end of the return spring 51 is fitted into each hole. The other end of the return spring 51 is adapted to abut against the frame portion 82 of the lower body 84 when assembled. Therefore, when the operation button 5 is not pressed, the projection 54 formed on the flange portion 5b is kept in contact with the flange portion 81e of the upper body 81 due to the biasing force of the return spring 51. .

When the central part of the operating part 5a is pressed, the operating button 5 sinks into the upper body 81 while maintaining its horizontal position, as shown in FIG. On the other hand, as shown in FIGS. 7(b) and 7(C), when the end is pressed, this operation button 5 is operated by the flange as described above. A projection 54 is formed on a part of the corner of the portion 5b.
・ is formed, so the protrusion 54 on the opposite side to the pressing side
serves as a fulcrum and moves lightly like a piano touch to ensure reliable operation of the contact opening/closing mechanism.

The switch body 8 assembled in this way is attached in the following manner.

■ Connect the switch body 8 to the engagement protrusion 81b of the upper body 81.
are fitted into the corresponding engagement recesses of the mounting frame 2 to be integrated with the mounting frame 2.

■ Pull out the electric wire (not shown) from the power source from the wiring box B housed inside the construction material (wall, etc.) W.

■ The drawn-out electric wire is passed from the back surface of the waterproof packing 4, which is arranged along the construction material surface (hereinafter simply referred to as "construction surface J") Wl, which becomes the mounting surface, to the lower body 84 formed in the center thereof. Pass it through the housing hole 41.

(2) Connect the end of the electric wire passed through the hole 41 to the terminal portion 87 of the lower body 84.

(2) Place the waterproof gasket 4 at a predetermined location on the construction surface W1 with the drainage notch 42 formed on one side thereof facing downward.

(2) Fit the lower body 84 into the hole 41 of the waterproof packing 4, and place the mounting frame 2 on the waterproof packing 4 so that the screw insertion holes 22.22 match the screw insertion holes 43.43 of the waterproof packing 4.

■ Insert the mounting frame fixing screws 6, 6 into the screw insertion holes 22. of the mounting frame 2, respectively. Screw insertion hole 43 of waterproof packing 4. The mounting frame 2 and the switch body 8 are fixed to the construction surface w1 with the waterproof gasket 4 in between by passing the screws through the screw insertion holes 61 formed in the construction material W in order and screwing them into the screw holes formed in the wiring box B. do.

■ Place the plate frame 3 on the front side of the mounting frame 2 so that the operation button 5 and the upper body 81 are exposed through the opening 31, and insert the two screws 7 (only one is shown in the figure). It is attached by passing through the screw insertion hole 33 and screwing into the screw hole 23.23 formed in the mounting frame 2.

Note that the mounting frame and the plate frame may be made of resin or metal. In FIG. 1, 34 is a notch for draining water, and it is provided at a position that matches the notch 42 of the waterproof packing 4, but the notch should not be provided in either the plate frame 3 or the waterproof packing 4. Bye.

Since the waterproof switch of this embodiment is constructed as described above, it is easy to operate and can be operated without directly touching the rubber, giving a very good operating feel.

Furthermore, although conventionally a metal plate frame could not be used, since the switch body has a waterproof structure, a metal plate frame can be used.

8 to 10 show another embodiment of the waterproof switch according to the present invention. As shown in the figure, in this waterproof switch, the switch main body 8 has an upper body 91 similar to the previous embodiment. It consists of an operation button 5 and a lower body 9. The lower body 9 includes a cylindrical body main body 94 having a large diameter portion 94 at one end and a small diameter portion 94d at the other end, and an assembly frame 92. One end of the main body 94, that is,
The operation button s side has a large diameter portion 94c, and a switch element (microswitch) 95 serving as a contact opening/closing mechanism is inserted and fixed through the opening.

Furthermore, as in the previous embodiment, a rubber cap 93 is placed over the opening so that water can leak through the opening and keep the internal contact opening/closing mechanism in a watertight state. A switch terminal connecting piece 97°97 electrically connected to the switch terminal 95a of the switch element 95 and chain springs 96, 96 are inserted into the opening on the other end of the body main body 94, that is, the small diameter portion 94d side. A lower cap 99 is fitted as a lid. Lower cap 9
9 includes a groove-like through hole 9 into which a connection release button 96 is inserted.
Two insertion holes 99b, 99b are formed into which the terminal 11 of the electric wire 10 from the electric wire 9a and the power source is inserted. In other words, this lower body 9 has a quick connection terminal structure. A pair of protrusions 94a, 94a are symmetrically provided at positions of the small diameter portion 94d of the main body 94 and the large diameter portion 93c with a slight distance therebetween. The assembly frame 92 has a small diameter portion 9 of the body main body 94 in the center.
A hole 92a having approximately the same diameter as 4d or slightly larger is formed. This hole 92a has four cutouts 92e formed therein. The main body 94 has a protrusion 94a cut out 9.
2e, and is inserted into the hole 92a, and the protrusion 9
4a is rotated to a position shifted from the notch 92e. In this way, the peripheral edge of the hole 92a is sandwiched between the large diameter portion 94c and the protrusion 94a, so that the body main body 94 and the assembly frame 92 are integrated. The assembly frame 92 also includes a locking means 92c into which a convex portion 91a formed on the side of the upper body 91 is fitted, and a locking means 92c into which a convex portion 91a formed on the side of the upper body 91 is fitted, and a locking means 92c which is fitted into the engagement recess 21 of the mounting frame 2. The projection 92b... is provided. The locking means 92C is configured to securely hold the upper body 91 by caulking after the projection 91a is fitted. Note that the operation button 5 is mounted between the upper body 91 and the lower body 9 as in the above-described embodiment.

The switch body 8 assembled in this way is attached to the mounting frame 2 in the same manner as in the previous embodiment, and
It can be attached to construction material W as shown in the figure. In this embodiment, as in the previous embodiment,
It is easy to operate and can be operated without touching the rubber directly, so it has a very good operating feel. Moreover, since it has a connecting terminal structure, the electric wire 10 can be easily connected, and the waterproof gasket 40 can be made by making a hole slightly smaller than the diameter of the electric wire in the part corresponding to the terminal insertion hole 99b. , electric wire 1
0 and the inner wall surface of the hole come into close contact, improving the waterproofing effect. Incidentally, if a screw is formed on the outer periphery of the main body 94 of the switch main body 8 of this embodiment, only the switch main body can be used for other waterproof equipment.

The waterproof switch according to the present invention is not limited to the above embodiments. For example, in the embodiment, waterproof gaskets are used, but they may not be used. however,
It is preferable to use a waterproof packing as in the embodiment, since the lower body insertion hole drilled in the construction material can be completely closed, and the inside of the construction material can also be waterproofed. In the example, the switch body, especially the lower body, was cylindrical, but other shapes are also possible. However, a cylindrical shape as in the example is preferable because the hole to be made in the construction material is smaller. I can say that. It can be mounted directly to construction materials or to a wiring box.

[Invention, kl] As described above, the waterproof switch of the present invention includes a switch body that is fixed to a mounting surface via a mounting frame, and this switch body has a body that has a built-in contact opening/closing mechanism. and an operation button for operating the contact opening/closing mechanism, the operation button facing an opening of a plate frame fixed to the front surface of the mounting frame, and the contact A rubber camp is provided to keep the opening/closing mechanism watertight, and when the operation button is pressed, the back side of the operating button presses the contact opening/closing mechanism through the rubber camp to cause the contact to open/close. , it is easy to operate and has an excellent operating feel.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an entire embodiment of a waterproof switch according to the present invention, Fig. 2 is an exploded perspective view of the switch body, and Fig. 3 is a perspective view of the operation button seen from the back. , Fig. 4 is an exploded perspective view of the lower body, Fig. 5 is a side sectional view of the switch body, Fig. 6 is a side sectional view showing its installed state, and Figs. 7(a) to (C) are its side sectional views. Fig. 8 is an exploded perspective view of the switch body of another embodiment, Fig. 9 is a side sectional view showing the assembled state, and Fig. 10 shows the installed state. It is a hail side sectional view. 2...Mounting frame 3...Plate frame 4...Waterproof gasket 5...Operation button 5b...Flange part
8...Switch body 9,84...Lower body 8
1,91... Upper body 31,81d... Opening agent Patent attorney Takehiko Matsumoto Figure 4 87c 87b Figure 5 Figure 6 Figure 7 (a) (b) (c) Figure 9 Figure 10

Claims (3)

[Claims] (1) A switch body is provided that is fixed to a mounting surface via a mounting frame, and this switch body has a body containing a contact opening/closing mechanism and an operation button for operating the contact opening/closing mechanism. The operation button faces the opening of the plate frame fixed to the front surface of the mounting frame, and the body is provided with a rubber cap that keeps the contact opening/closing mechanism watertight. . A waterproof switch, wherein when the operation button is pressed, the back surface of the operation button presses the contact opening/closing mechanism via the rubber cap to open/close the contacts. (2) A lower body in which the body has a built-in contact opening/closing mechanism;
It is made up of this lower body and a separable upper body, and by sandwiching the operation button between these two bodies, the other operation button is built into the body.
Further, a flange portion corresponding to the periphery of the upper body opening is provided on an edge of the operation button, and a protrusion formed on the flange comes into contact with the periphery of the opening, thereby allowing the operation to be performed. The waterproof switch according to claim 1, wherein the button is rotatable about this protrusion as a fulcrum. (3) The waterproof switch according to claim 1 or 2, wherein the mounting frame is fixed to the mounting surface via a waterproof packing that maintains watertightness at the bottom of the body.