JPH0314767Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to containers for controllers, switches, etc. installed on pillars.

[Conventional technology]

When installing controllers and switches outdoors on poles, they are exposed to harsh environments such as sunlight, wind and rain, so consideration must be given to weather resistance, corrosion resistance, and internal temperature rise, especially in winter in cold regions. Measures against snowfall are also necessary. In addition, from the perspective of urban aesthetics, etc., it is required that the appearance be as good as possible. In response to these demands, conventional containers have been made of resin, have a cylindrical shape with a convex ceiling, and have a flange on the seat, into which a board with devices attached is inserted and fixed from the bottom, and can be operated from the outside. The operating device handles, etc. for this purpose were attached to the bottom. Being made of resin increases corrosion resistance and suppresses internal temperature rise, and by placing the container joint surface on the bottom and covering it with the hem of the container, it is possible to prevent the infiltration of wind and rain and the effects of corrosion. be.

9 and 10 are a partially cutaway front view and a partially cutaway bottom view of the conventional embodiment. FIG. 11 is a perspective view of a packing in a conventional embodiment. 1 is a cylindrical container made of resin with an opening at the bottom; the upper part has a convexly bulging ceiling 1a; the side wall 1b is cylindrical or rectangular, and if necessary has a base that slightly flares downward; shape, with a lateral bulge 1 at the bottom.
c is provided and continues further to the lower hem portion 1d. A stepped portion 1e into which the substrate 2 is fitted from below is formed on the inner surface of the bulging portion 1c, and a packing groove 1f is formed in the lower surface of the stepped portion 1e against which the substrate contacts, into which the packing 7 is fitted. The board 2 is inserted into the container 1 from below and is tightened against the packing 7 to seal the inside of the container. Stepped portion 1e
An insert fitting 4 is provided with an embedded screw, and the container 1 and the substrate 2 are tightened with a tightening bolt 5 through a packing 7. Control devices are attached and supported on the upper surface of the board 2, and external operating devices and the like are exposed on the lower surface. The outer surface of the container 1 is provided with support legs 1k to which support fittings for supporting the container are attached.

[Problems to be solved by the invention] When configured as described above, the packing 7 needs to have a shape that corresponds to the hem 1d of the container 1. For example, if the container 1 is cylindrical, the shape shown in FIG. Since this is a ring-shaped flat packing, a mold or the like is required to form or cut out the packing specifically for this container, which is uneconomical.

In addition, the shape of the container is bulging at the bottom and constricting in the middle, which makes it unsightly when installed on a pillar, and has various drawbacks such as a small internal volume relative to the occupied area or maximum outer diameter.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention has a container such as a pole-mounted controller, which has a ceiling part at the top.
The side wall has a cylindrical trapezoid shape with an opening at the bottom and widens at the end, and a wide step protrudes from the inner circumferential surface of the middle part leaving a hem at the bottom of the side wall, and at several places on the circumference of this step there are A mounting seat that extends inward, a concave part that gradually becomes shallower toward the ceiling than the mounting seat, and is concave on the outer surface and convex on the inner surface, a corner formed by the step and the inner peripheral surface of the container, and A board is fitted and abutted from below and is tightened and fixed to the mounting seat, and this board is provided with a packing pressing surface that faces the corner and comes into contact with and compresses an O-ring interposed between the corner and the corner. This is how it was done.

〔Example〕

Examples of the present invention will be described below. Figures 1 to 7 show an embodiment of the present invention, with Figure 1 being a partially cutaway front view, Figure 2 being a partially cutaway bottom view, Figure 3 being a sectional view taken along line A-A', and Figure 4 being a partially cutaway bottom view. 5 is a left side view, FIG. 5 is a right side view, FIG. 6 is a partially enlarged view, FIG. 7 is a perspective view, and FIG. 8 is a perspective view of the packing. No. 9 in the diagram
The same or corresponding parts as in FIG.

In the figure, reference numeral 1 denotes a container, which is a cylinder made of resin and has a slightly trapezoidal shape.The upper part has a convex ceiling portion 1a, and the side wall 1b is cylindrical and has a trapezoidal shape that widens slightly toward the bottom with an opening at the bottom. A wide stepped portion 1g is made to protrude from the inner circumferential surface of the intermediate portion where the lower hem portion 1d is left, and mounting seats 1h are provided at several places on the periphery that partially protrude inward from the stepped portion 1g. A concave part 1i having a concave outer surface and a convex inner surface is provided so as to be gradually shallower from the mounting seat 1h toward the ceiling 1a.
This recessed part 1i is a means for making the wall thickness of the container uniform when forming the mounting seat 1h, and as a result, the container 1 as a whole loses its cylindrical trapezoidal shape with the outer surface of the side wall 1b being substantially linear. The mounting seat 1h can be provided without the need for the mounting seat 1h. The mounting seat 1h is provided with a screw to embed the insert fitting 4, and the board 2 fitted into the container 1 from below is brought into contact with the mounting seat 1h and the tightening bolt 5 is inserted.
Tighten and secure. A seal pressing surface 2a is provided to face a corner 1j formed by the stepped portion 1g and the inner circumferential surface of the container 1, and a corner portion 1j of the upper outer circumference of the substrate 2, and these corner portions 1j and the packing pressing surface 2a are provided. An O-ring 3 is interposed as a seal between the two. The compression amount of the O-ring 3 is limited to an appropriate value by the contact between the upper surface of the substrate 2 and the mounting seat 1h. A support leg 1k is provided on the outer surface of the container 1, and one or more mounting holes 1 for attaching metal fittings, etc. are provided at appropriate locations on the support leg 1k.
will be established. In this case, two supporting legs 1k are provided to ensure stability when attached to a pillar or the like.
In this case, a recessed part 1m is provided between the two support legs. It is optional to provide one support leg 1k as shown in FIG. Control devices 8 are attached and supported on the upper surface of the container of the substrate 2, and external operating devices 9 are exposed on the lower surface. The outer periphery of the joint between the external operating device and the substrate 2 and the container 1 exposed on the lower surface is covered by the skirt portion 1d of the container 1 and protected from sunlight, wind and rain.

[Effect of idea]

The present invention relates to a container such as a pillar-mounted controller, which has a ceiling part 1a at the top, a side wall 1b in the shape of a cylindrical trapezoid that widens toward the end and has an opening at the bottom, and an inner circumferential surface of an intermediate portion that leaves a hem at the bottom of the side wall 1b. Width step part 1 that protrudes from
g, a mounting seat 1h partially protruding inward from the step 1g at several places on the circumference of this step 1g, this mounting seat 1;
A concave part 1i that gradually becomes shallower toward the ceiling part 1a from h, and is concave on the outer surface and convex on the inner surface, a corner part 1j formed by the step part 1g and the inner peripheral surface of the container 1, and a fitting part that fits into the step part 1g from below. A board 2 that is in contact with and fixed to the mounting seat 1h, a seal pressing surface 2a provided on this board 2 opposite to the corner 1j, and an intervening device between this packing pressing surface and the corner 1j. Since the O-ring 3 is provided, a commercially available O-ring can be used as the seal, there is no need for a dedicated seal with a special shape, and the price of the seal is low.
Moreover, there is no need to invest in mold costs, and the economic effect is great. In addition, the bulge and constriction of the container shape are eliminated, and the aesthetic appearance of the pillar installation can be maintained, and the internal volume of the container is increased because the stepped portion protruding from the inner surface is made wider, increasing the equipment storage capacity.

[Brief explanation of the drawing]

1 to 8 show an embodiment of the present invention, FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway bottom view, and FIG. 3 is a sectional view taken along line A-A' in FIG. 2. , Fig. 4 is a left side view, Fig. 5 is a right side view, Fig. 6 is a partially enlarged view, Fig. 7 is a perspective view, Fig. 8 is a perspective view of the packing, and Fig. 9 is a front view of the conventional embodiment. 10 is a bottom view thereof, and FIG. 11 is a perspective view of the gasket. 1: Container, 1b: Side wall, 1g: Width step, 1
h: Mounting seat, 1i: Recessed part, 1j: Corner, 2: Board, 2a: Packet holding surface, 3: O-ring, 5:
Tightening bolt.

Claims (1)

[Scope of utility model registration request] A cylindrical trapezoidal side wall 1b having a ceiling portion 1a at the top and an opening at the bottom, this side wall 1b
A wide stepped portion 1g protrudes from the inner circumferential surface of the intermediate portion where the bottom hem remains, and stepped portions 1 are formed at several places on the circumference of this stepped portion 1g.
A mounting seat 1h that partially extends inward from the mounting seat 1h, a recessed part 1i that gradually becomes shallower from this mounting seat 1h toward the ceiling 1a, and is concave on the outer surface and convex on the inner surface, a stepped part 1g, and the inner circumferential surface of the container 1. a corner 1j formed by a corner 1j, a board 2 that fits and abuts the step 1g from below and is tightened and fixed to the mounting seat 1h, and a board 2 that faces the corner 1j and is connected to the corner 1j. A container for a column-mounted controller, etc., characterized in that it is provided with a presser surface 2a of a packing that contacts and compresses an O-ring 3 interposed therebetween.