JPH0636336B2 - Structure of rainproof exposed type switch - Google Patents

Description

TECHNICAL FIELD The present invention relates to a structure of a rainproof exposure type switch used outdoors.

BACKGROUND ART Conventionally, for example, in Japanese Utility Model Laid-Open No. 58-53435,
Disclosed is a waterproof structure in which a projection is formed on the upper surface of a peripheral edge of a rainproof cover of a rainproof exposed type switch, and a concave portion is formed on a surface corresponding to the projection of a cover that covers a switch body and a body.
However, in the conventional fitting state of the protrusion and the recess,
There is a problem that a gap is likely to be formed between the protrusion and the recess due to a dimensional error of the protrusion width of the protrusion, a dimensional error of the recess width of the recess, rainwater may enter through the gap, and the waterproofness may be deteriorated. .

[Object of the Invention] The present invention has been provided in view of the above-mentioned points, and it is possible to provide a completely waterproof structure, and a rainproof exposure for the purpose of easily assembling even though it is a completely waterproof structure. The structure of the shape switch is provided.

DISCLOSURE OF THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, 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 body 1 is attached to a metal mounting frame 3, and mounting pieces 3a, which form a paragraph from the central piece 3b, are bent and formed on both sides of the mounting frame 3. The upper part of the switch body 1 is inserted into the opening of the mounting frame 3, the projection of the mounting frame 3 is locked in the recess of one side surface of the upper part, and the caulking part 5 of the mounting frame 3 is fitted in the other recess 4. The switch body 1 is attached to the mounting frame 3 by caulking and locking.

Next, the waterproof structure of the cover 8 will be described. The waterproof structure is composed of a cover 8, a rainproof cover 13 and a pressing plate 14. The rainproof cover 13 is made of a synthetic resin having a through hole and flexibility, and has an operating portion 15 projecting upward. Is projected upward from the opening 9 of the cover 8 to be exposed, and the operating handle 2 of the switch body 1 is correspondingly located inside the operating portion 15. Therefore, the operation handle 2 of the switch body 1 can be operated by pushing the operation portion 15 of the rain cover 13 from the outside. The operation portion 15 of the rainproof cover 13 is provided with a certain distance from the operation handle 2 in order to improve the operability without touching the operation handle 2 directly.

Further, the shape of the rain cover 13 which is the gist of the present invention will be described in detail. As shown in FIG. 2, a substantially trapezoidal operation portion 15 is provided at the center of the rain cover 13 so as to project. The operation portion 15 is hollow as shown in FIG.
The surrounding rising portion 43 and the operating surface portion 41 are the operating surfaces. Then, the following structure is adopted in consideration of the drawback of the dustproof cover of the illuminated pushbutton switch. Ie. An inclined piece 42 is chamfered between the operation surface portion 41 and the rising portion 43 on each side, and the thickness of each portion is determined as follows. That is, assuming that the thickness of the operation surface portion 41 is a, the thickness of the inclined piece 42 is b, and the thickness of the rising portion 43 is c, there is a relationship of b <a and b <c.
In addition, between the rising portion 43 and the inclined piece 42, the inclined piece 4
Between 2 and the operation surface portion 41, a so-called R-shape is formed by bending. With this configuration, the pulling force in the lateral direction is weakened, and the operability in the lateral direction as well as the vertical direction is improved.

That is, according to the present invention, as shown in FIG.
In addition to the operability of the operation surface portion 41 in the up-down direction A, the operability in the lateral direction (or diagonal direction) B is also taken into consideration. Therefore, the operation surface portion 41 of the rainproof cover 13 having flexibility is considered. The inclined piece 42 is chamfered between the rising surface 43 and the rising portion 43, and the thickness b of the inclined piece 42 is set to the operation surface 4
1 and thinner than the rising portions a and c. Therefore, not only the pulling force of the rainproof cover 13 in the vertical direction A is weakened, but also the pulling force of the rainproof cover 13 in the lateral direction B can be weakened, and the operability of the rainproof cover 13 in the lateral direction B is reduced. Can be improved similarly to the operability in the vertical direction A. As a result, for example, even when the push button mechanism of the tumbler switch is inverted in the lateral direction B, it does not occur that the switch returns to its original state due to the lateral pulling force of the rain cover 13. It has become.

On the other hand, as shown in FIG. 3 (a), the rising portion 43 of the rainproof cover 13 is formed in an L-shaped cross-section including a vertical portion 43a and a horizontal portion 50, and the switch body 1 and the body. The upper edge of the cover 8 that covers the upper surface of the rising portion 43 is abutted from the vertical portion 43a on the upper surface side of the rising portion 43 to the upper surface of the horizontal portion 50, and the pressing plate 14 on the switch body 1 side is connected to the rising portion. It is in contact with the lower surface of 43.
Therefore, the operating force applied in the lateral direction B is the upper edge portion 8 of the cover 8.
It can be reliably received by a, and it is possible to prevent the operating force in the lateral direction B from being applied to the contact surfaces of the rising portion 43 and the cover 8 and the rising portion 43 and the pressing plate 14, and as a result, the contact surfaces are waterproof. The structure is easy to take, and the waterproof property at the periphery of the rainproof cover 13 is ensured.

Next, the waterproof structure on the periphery of the rain cover 13 will be described.
As shown in FIG. 3 (b), a first rib 16 having a height of 0.3 mm is formed on the upper surface of the peripheral edge of the rain cover 13 and the rain cover 13 has a height of 0.3 mm. A second rib 17 having a height of 0.1 mm is provided so as to be opposed to the first rib 16 over the entire inner lower surface of the cover 8 on the opening 9 side. The first rib 16 of the rainproof cover 13 and the second rib 17 of the cover 8 are in close contact with each other to form a waterproof structure. Also, the fifth
As shown in the figure, the side wall 20 of the body 19 having an open upper surface
A mounting boss 21 for fixing the mounting frame 3 to which the switch main body 1 is attached is integrally formed in a slightly diagonal shape on the inner side of. The mounting boss 21 is formed higher than the upper end surface of the side wall 20. Further, an electric wire insertion port 22 into which the electric wire 32 is inserted is formed at three places of the body 19 across the side wall 20 and the bottom surface, and an engaging piece 23 is provided on the outer side surface of the side wall 20 except for the electric wire insertion port 22. It is installed vertically. In addition, as shown in FIGS.
It can be effectively used as a storage space for 2. The waterproof packing 24 made of an elastic material such as synthetic resin or rubber is formed in a frame shape.
A recess 25 into which the engaging piece 23 is fitted is provided on the upper end surface of the. Further, as shown in FIG. 5, the lower part of the waterproof packing 24 is split into two parts, and the waterproof packing 24 is formed in a generally H-shaped cross section. Waterproof packing 24
A drainage hole 31 is similarly drilled on the lower end surface (building surface) of the body 19 corresponding to the drainage hole 30 drilled on the lower end surface (building surface) of the body 19.

Then, as shown in FIG. 5, the engagement piece 23 of the body 19 is fitted into the recess 25 of the waterproof packing 24, and the body 1
9 is covered with the cover 8 and the lower end surface of the side wall 28 of the cover 8 is brought into close contact with the contact piece 29 outside the recess 25 of the waterproof packing 24 (M in the figure). With this structure, the cover 8 and the side wall 28
It is possible to prevent water from entering between the end surface and the contact piece 29 of the waterproof packing 24. The body 19 is attached to the construction material 27 as follows. That is, first, the body 19 is fastened to the building material 27 with screws, and tightened from the state shown in FIG. 6 (a) to the state shown in FIG. 6 (b), that is, until the bottom surface of the body 19 comes into close contact with the building material 27. The end surfaces of the leg pieces 26, 26 of the waterproof packing 24 are in close contact with the construction surface of the construction material 27 (N in the figure), which prevents water from entering between the leg pieces 26 of the waterproof packing 24 and the construction material 27. I'm out. In addition, the leg pieces 26 of the waterproof packing 24
Has a shape that prevents abnormal deformation such as inward bending due to pressing of the waterproof packing 24. Further, when the body 19 is tightened on the building material 27, the bottom surface of the body 19 hits the building material 27, so that excessive tightening can be prevented and a sufficient tightening force can be secured.

Next, the assembly or construction of the switch will be described. The peripheral edge of the rain cover 13 is sandwiched between the peripheral edge of the opening 9 of the cover 8 and the peripheral edge of the pressing plate 14, and the driving tab 44 is inserted through the insertion hole 45 from below the mounting piece 3a of the mounting frame 3. 1
4. A rainproof cover 13 is used to drive and fix the cover 8. Then, as shown in FIG. 7, the cover block 46 configured as described above is used for the body 1
9, and screw 10 from above the cover 8 to the body 1
The switch is assembled by screwing it onto the nut in the mounting boss 21 of No. 9. With this configuration, the cover block 46 and the body part are two parts, and the body part is attached to the building surface and the cover block 4 is attached to the body part.
6 and the number of steps is reduced to two, and the rain cover 13 can be directly pressed by the mounting frame 3 by the driving tack 44. In other words, the rainproof cover 13 is constantly pressed against the cover 8 and the pressing plate 14, and the pressure increases the adhesion, preventing the intrusion of water, and the exposed waterproof switch can be easily developed. Further, since waterproofing is not required on the switch section side, a general-purpose general-purpose switch can be used as it is, and the function development of the switch can be facilitated. Moreover, since the mounting frame 3 is attached to the cover 8 with the driving tack 44, the number of parts can be reduced, and it becomes impossible for the user to replace the switch, and troubles such as reverse mounting can be prevented. Further, since the mounting frame 3 is attached to the cover 8 with the driving tack 44, it is possible to reduce the fixed chip 6 and the pressing plate 14, and it becomes impossible for the user to replace the switch. Can be prevented.

[Effects of the Invention] As described above, the present invention forms the first rib over the entire circumference of the upper surface of the peripheral edge of the rain cover, and forms the second rib on the surface of the cover corresponding to the first rib. The first rib and the second rib are adhered to each other to form a waterproof structure, and the periphery of the rainproof cover is sandwiched between the periphery of the opening of the cover and the periphery of the pressing plate, and the switch body is attached. It was provided on the front of the cover to screw the cover and the body by screwing the driving studs that passed through the mounting frame into the cover through the pressing plate and the rainproof cover and fixing it. Even if rainwater intrudes through the screw holes,
By strongly tightening the driving tack, the peripheral edge of the cover, the peripheral edge of the rain cover and the pressing plate are in close contact with each other, and the first and second ribs are in close contact, so that further infiltration of rainwater can be prevented. It can be surely prevented, and the switch part can have a completely waterproof structure. Moreover, by sandwiching the peripheral edge of the rainproof cover between the opening peripheral edge of the cover and the peripheral edge of the pressing plate, and fixing the driving studs inserted through the mounting frame to the cover through the pressing plate and the rainproof cover, the cover is fixed. It is possible to form a cover block in which the rainproof cover, the holding plate, the switch body, and the mounting frame are integrated, and the cover block configured in this way is covered by the body to which the switch body is attached. Then, by inserting a screw from the screw hole on the front surface of the cover and screwing it into the body, it is possible to easily assemble the rainproof exposed type switch even though it has the completely waterproof structure as described above. Has the effect.

[Brief description of drawings]

1 (a) to (d) are front views of a switch according to an embodiment of the present invention,
Sectional view showing the construction state, broken bottom view and rear view showing the construction state, FIG. 2 is an exploded perspective view of the above, and FIGS. 3 (a) and 3 (b) show a state in which the rain cover is fixed in close contact. An enlarged sectional view and enlarged sectional views showing the first and second ribs, FIG. 4 is an enlarged sectional view of an essential part of the rainproof cover of the same, and FIG. 5 is an enlarged view showing a fitted state of the body and the waterproof packing of the same. Sectional view, Figure 6 (a)
(b) is an explanatory view showing a construction state of the body and the waterproof packing,
FIG. 7 is an exploded perspective view of the above. 1 is a switch body, 2 is an operation handle, 8 is a cover, 1
3 is a rain cover, 15 is an operation part, 16 is a first rib, 1
7 is a second rib, 19 is a body, 41 is an operation surface portion, 42
Is an inclined piece, 43 is a rising portion, 44 is a driving tack, and 46 is a cover block.

Claims (1)

[Claims] 1. A switch main body for opening and closing contacts by operating an operating handle, a body to which the switch main body is attached, and a cover for mounting the switch main body and the body by mounting the operation surface of the switch main body on a wire. , The operating part is opposite the operating handle of the switch body and is exposed to the outside for operation through the opening of the cover, and is located between the operating surface of the switch body and the inner surface of the cover to provide the cover and the waterproof structure. A rainproof cover having flexibility to apply, a first rib is formed over the entire circumference of the upper surface of the peripheral edge of the rainproof cover, and a second rib is formed on a surface of the cover corresponding to the first rib. A rib is formed, the first rib and the second rib are brought into close contact with each other to form a waterproof structure, and the periphery of the rainproof cover is sandwiched between the periphery of the opening of the cover and the periphery of the pressing plate. Inserted the attached mounting frame Structure rainproof surface-type switches, characterized in that the formation of the fixed and cover blocks implanted in the cover via the pressing plate and rainproof covering Komibyo.