JPH0224181Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to the structure of a rainproof exposed type switch used outdoors.

[Background Art] FIG. 6 is a sectional view showing the structure of a conventional waterproof embedded switch. A handle block 51 consisting of an operation handle 54 and the like is arranged approximately at the center of the switch. The unit has a waterproof structure with a waterproof packing 52, and the entire instrument is covered with this waterproof packing 52, and a plate 53 is disposed on the upper surface thereof, and an operating handle 54 is exposed to the outside. In such a conventional switch, since the waterproof gasket 52 is fitted to the shaft of the operating handle 54, the switch operation is affected and the operability is not good. Since it is provided on the front side, it is said that it is impossible to expand the function due to waterproofness and the impermeability of the waterproof gasket 52, such as when providing a display element for displaying operation or position on the switch body. There was a problem. Furthermore, since the structure of the switch is an embedded type, there is a problem in that it is difficult to develop it into an exposed type.

[Purpose of the invention] The present invention has been proposed in view of the above-mentioned points, and is easy to apply functions to switches that have display elements for displaying operations and positions, and is waterproof for outdoor use. The present invention provides a structure of a rainproof exposed switch which is provided with a double waterproofing mechanism with sufficient safety in mind, and whose purpose is to prevent water from entering from the switch operation surface.

[Disclosure of the invention] Hereinafter, embodiments of the invention will be described with reference to the drawings.
In FIGS. 2 and 3, a general switch is used as the switch body 1, and a swingable operation handle 2 is provided on the upper surface of the switch body 1. Further, the switch main body 1 is attached to a metal mounting frame 3, and mounting pieces 3a are bent on both sides of the mounting frame 3 and are one step further from the center piece 3b. The upper part of the switch body 1 is inserted into the opening of the mounting frame 3, the protruding piece of the mounting frame 3 is locked in the recess on one side of the upper part, and the caulking part 5 of the mounting frame 3 is inserted into the other recess 4. By caulking and locking, the switch body 1 is attached to the mounting frame 3. A notch is provided in the center of the mounting piece 3a, and a fixing chip 6 made of synthetic resin is fitted into this notch. A screw hole 7 is screwed into this fixed chip 6. A cover 8 with an open bottom and an opening 9 in the top is placed over the switch body 1 from above, and the screws 10 are inserted into the fixing chip 6 through the packing 11 and the insertion hole 12 of the cover 8. It will be screwed into hole 7. This is a pan head screw type screw 1
Since the head of 0 is exposed on the switch operation surface, a fixing chip 6 made of synthetic resin made of insulating material is used to prevent electricity from flowing from the switch part through the mounting frame 3. This serves to insulate the screw 10.

Next, the waterproof structure of the cover 8 will be explained.
This waterproof structure is composed of a cover 8, a rainproof cover 13, and a holding plate 14. The rainproof cover 13 is made of a permeable and flexible synthetic resin, and has an operating section 15 protruding upward. protrudes upward from the opening 9 of the cover 8 and is exposed, and the operating handle 2 of the switch body 1 is located inside the operating section 15 correspondingly. Therefore, by pressing and operating the operating portion 15 of the rainproof cover 13 from the outside, the operating handle 2 of the switch body 1 can be operated. The operation section 15 of the rainproof cover 13 is
A certain distance is provided from the operating handle 2 in order to improve operability without directly touching the operating handle 2 in the non-operating state. By the way, as shown in FIG. 1b, a first rib 16 with a height of 0.3 mm is formed on the upper surface of the peripheral edge of the rainproof cover 13 over the entire circumference.
Opposed to the first rib 16 of the rainproof cover 13, a second rib 17 with a height of 0.1 mm is protruded over the entire circumference of the inner lower surface of the cover 8 on the opening 9 side.
The first rib 16 of this rainproof cover 13 and the cover 8
The waterproof structure is formed by closely contacting the second rib 17 of the waterproof structure.

In addition, as shown in FIG.
A recessed step portion 41 is cut out on the surface of the holding plate 14 of No. 8. A notch 4 is provided on the lower surface of the end of the holding plate 14.
2 is formed, the rainproof cover 13 is pushed into the inside of the cover 8 by the pressing plate 14, and the end of the pressing plate 14 is positioned in the recessed step 41 of the protrusion 18, and the cover 8 is closed.
By pushing the tip of the protrusion 18 into the notch 42 of the holding plate 14 as shown by the broken line in FIG. 1a,
Attach the holding plate 14 to the cover 8 and close the rainproof cover 13.
is fixed to the cover 8. At this time, the tip of the protrusion 18 pushed into the notch 42 of the holding plate 14 and the notch 42
The surface is bonded to the surface using, for example, ultrasonic waves. In this way, the rainproof cover 13 is always attached to the cover 8 by bonding the cover 8 and the pressing plate 14 using ultrasonic waves and by the double safety structure of the close contact structure of the ribs 16 and 17.
It is pressed against the pressing plate 14, and the pressure increases the adhesion and prevents water from entering. In addition, there is no need for waterproof gaskets that cover the entire surface of the device, such as waterproof recessed switches.
Therefore, an exposure waterproof switch can be easily developed. Furthermore, since there is no need for waterproofing on the switch side, a general-purpose switch can be used as is, and the functions of the switch can be easily expanded. Also, unlike a waterproof embedded switch, the operating section 15 of the rainproof cover 13 is directly connected to the switch body 1.
Since the operating handle 2 of the switch is not touched, operability is better than that of a waterproof recessed switch.

A mounting boss 21 for fixing the mounting frame 3 to which the switch body 1 is attached is integrally formed on the inner side of the side wall 20 of the body 19 having an open upper surface in a slightly diagonal shape. This mounting boss 21 is formed higher than the upper end surface of the side wall 20. Also, body 19 3
A wire insertion port 22 into which a wire 32 is inserted is provided across the side wall 20 and the bottom surface, and an engaging piece 23 is integrally vertically provided on the outer surface of the side wall 20 except for the wire insertion port 22. ing. Further, the bottom surface of the body 19 can be effectively used as a storage space for the electric wires 32, as shown in FIGS. 2b and 2c.
A waterproof packing 24 made of an elastic material such as synthetic resin or rubber is formed into a frame shape, and a recess 25 into which the engaging piece 23 fits is provided on the upper end surface of the waterproof packing 24. Further, as shown in FIG. 4, the lower part of the waterproof gasket 24 is split into two parts, and the waterproof gasket 24 as a whole has a cross section of about H.
It is formed into a letter shape. A drain hole 31 is similarly cut in the lower end surface (across the construction surface) of the waterproof gasket 24 in correspondence with the drain hole 30 cut in the lower end surface (across the construction surface) of the body 19.

As shown in FIG.
The lower end surface of the side wall 28 is connected to the recess 2 of the waterproof gasket 24.
5 (M in the figure).
This structure can prevent water from entering between the cover 8, the end face of the side wall 28, and the contact piece 29 of the waterproof packing 24. Further, the body 19 is attached to the construction material 27 as follows. That is, first, the body 19 is tightened to the construction material 27 with screws, and the state shown in FIG. 5a is changed from the state shown in FIG. 5b.
When tightened until the bottom of the body 19 comes into close contact with the construction material 27, the end surfaces of the legs 26, 26 of the waterproof gasket 24 come into close contact with the construction surface of the construction material 27 (N in the figure). This prevents water from entering between the leg piece 26 of the waterproof packing 24 and the construction material 27. The leg pieces 26 of the waterproof gasket 24 are shaped to prevent abnormal deformation such as inward bending due to pressure on the waterproof gasket 24. Further, when the body 19 is tightened to the construction material 27, the bottom surface of the body 19 comes into contact with the construction material 27, so excessive tightening can be prevented and sufficient tightening force can be ensured.

Next, the assembly and construction of the switch will be explained. First, appropriate notches are cut out in the waterproof packing 24 corresponding to the wiring direction of the electric wires 32, and the electric wires 32 of the switch body 1 are connected through the notches and the electric wire insertion openings 22 of the body 19. Then, fit the body 19 into the waterproof gasket 24, and tighten the screws into the body 1.
The waterproof packing 24 and the body 19 are tightened and fixed to the construction material 27 by inserting the screw into the insertion hole 33 or 34 of the construction material 27 and screwing the screw into the construction material 27.
Next, place the mounting piece 3a of the mounting frame 3 with the switch body 1 attached on top of the mounting boss 21 of the body 19, and attach the pan head screw type screw 35 through the insertion hole 36 of the mounting piece 3a. Screwed into a nut 38 fixed inside through the through hole 37 of the boss 21,
Fix the mounting frame 3 to the body 19. Furthermore, a cover 8 to which the holding plate 14 and the rainproof cover 13 are attached
The cover 8 is placed on the mounting frame 3, and the screw 10 is screwed into the screw hole 7 of the fixed chip 6 through the insertion hole 12 of the cover 8, thereby fixing the cover 8 to the mounting frame 3.

[Effects of the invention] As described above, the present invention consists of a switch body that opens and closes the contacts by operating the operating handle, a body to which the switch body is attached, and a switch body that is attached to the operating surface of the switch body. and a cover that covers the body, and an operation part attached to the operation handle of the switch body, exposed to the outside for operation through an opening in the cover, and located between the operation surface of the switch body and the inner surface of the cover. A flexible rainproof cover that is sandwiched between the cover and the holding plate to provide a waterproof structure, and an elastic waterproof packing that is attached to the construction surface of the body and provides a waterproof structure to the body and construction surface. The periphery of the rainproof cover is pressed between the cover and the pressing plate, a first rib is formed on the upper surface of the periphery of the rainproof cover, and a second rib is formed on the surface of the cover corresponding to the first rib. Form the first
The rib and the second rib are brought into close contact to form a waterproof structure, and a protrusion is provided hanging from the inner lower surface of the cover located on the outer side of the rainproof cover, and the tip of the protrusion is pushed down to press the notch to be joined. Since the plate is cut at the end of the plate to fix the presser plate to the cover, the first rib and the second rib should be in close contact and the protrusion of the cover should be joined to the notch in the presser plate. This has the effect of creating a double waterproof structure and sufficiently preventing water from entering from the operating surface of the switch. Packaging is no longer required,
An exposed waterproof switch can be easily developed, and by using a rainproof cover, the rainproof switch is placed opposite the operating handle of the switch body, rather than directly touching the handle block as in the past. Since the operation handle is operated from the operation part of the cover, it is easy to operate, and also allows the use of general-purpose switches, making it easy to extend the function to switches that have operation display and position display functions. This has the following effect.

[Brief explanation of drawings]

Figures 1a and 1b are enlarged sectional views showing the rainproof cover according to the embodiment of the present invention in a tightly fixed state, and enlarged sectional views showing the first and second ribs, and Figures 2a to d are the embodiments of the same. A front view of the example switch, a broken bottom view showing the construction state, a sectional view and a rear view showing the construction state, Figure 3 is an exploded perspective view of the same as above, and Figure 4 shows the fitted state of the same body and waterproof packing. FIGS. 5a and 5b are explanatory views showing the state of construction of the body and waterproof packing, and FIG. 6 is a sectional view of a conventional waterproof embedded switch. 1 is the switch body, 2 is the operating handle, 8 is the cover, 13 is the rainproof cover, 14 is the holding plate, 15
16 is a first rib, 17 is a second rib, 18 is a projection, 19 is a body, 24 is a waterproof packing, 27 is a building material, and 42 is a notch.

Claims (1)

[Scope of utility model registration request] A switch body that opens and closes the contacts by operating the operation handle, a body to which the switch body is attached, a cover that is attached over the operation surface of the switch body to cover the switch body and the body, and a cover that covers the switch body and the body. It is installed opposite to the operation handle of the main unit, is exposed to the outside for operation through the opening of the cover, is located between the operation surface of the switch main body and the inner surface of the cover, and is sandwiched between the cover and the holding plate, and has a waterproof structure. The rainproof cover has a flexible rainproof cover that provides protection, and an elastic waterproof gasket that is attached to the construction surface of the body to provide a waterproof structure to the body and construction surface, and the cover and the waterproof gasket that hold the periphery of the rainproof cover. A first rib is formed on the upper surface of the periphery of the rainproof cover, a second rib is formed on the surface of the cover corresponding to the first rib, and the first rib and the second rib are pressed together. A waterproof structure is achieved by placing the two parts in close contact with each other, and a protrusion is hung down from the inner bottom surface of the cover located on the outside of the rainproof cover, and a notch is cut into the end of the holding plate where the tip of the protrusion is folded down and joined. The structure of the rainproof exposed switch consists of a holding plate fixed to the cover.