JPH0617323U - Box joint frame - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a joint frame for a box that simplifies the molding die and that can omit the troublesome work of assembling the divided joint frame body. [Structure] Box body 4 that makes up the embedded box
The joint frame 1 for the box is interposed between the coating cover 7 and the coating cover 7, and the outer peripheral surface 3 has a substantially stepped shape with a predetermined pitch in the opening direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a box joint frame.

[0002]

[Prior art]

 A conventional joint frame for a box is disclosed in Japanese Utility Model Publication No. 45-17959. This is a band made of a thin aluminum plate that has cuts on a joint frame made by stacking a number of rectangular copper wires and then solidifying and bonding with zinc, and also has a piece for attaching to a coating cover, or A large number of cuts are formed in a rectangular steel plate joint frame, and a mounting piece to the coating cover is also provided.

Another box joint frame is disclosed in Japanese Utility Model Publication No. 01-35524. In this product, the joint frame corresponding to the box body is divided into two L-shaped parts, and both ends thereof are provided with engaging parts for engaging with each other, and a tightening screw insertion part is provided at a predetermined position inside thereof. The joint frame is formed by resin-molding a divided joint frame body in which a large number of divided joint frame pieces having the structure are integrally polymerized through cuts, and then the divided joint frame bodies are assembled.

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional technique, the former one has an advantage that a joint frame having a required height can be obtained by cutting at a cut, and further, the cutting is easy and easy, but the joint frame is formed. Therefore, there is a problem that the die becomes complicated and the manufacturing cost increases. Also, the latter one has the advantage of simplifying the mold and reducing the manufacturing cost while taking advantage of the former advantage, but the laborious work of assembling the split joint frame had to be performed.

The present invention has been made in view of the above circumstances, and its purpose is to simplify a molding die and to omit a troublesome work such as assembling a split joint frame body. It is to provide a joint frame for boxes that can

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the box joint frame of the present invention is a tubular resin box joint frame that is interposed between the box body that constitutes the embedded box and the coating cover. The outer peripheral surface is formed in a substantially step shape with a predetermined pitch in the opening direction.

Further, the box joint frame of the present invention is a tubular box joint frame made of resin, which is attached to an embedded box composed of a box body and a coating cover, and has an outer peripheral surface. Is formed in a substantially stepped shape with a predetermined pitch in the opening direction, and the cross section of the space formed by the cylindrical inner wall surface is formed larger than the opening of the coating allowance cover.

Further, the box joint frame of the present invention comprises a box body and a coating cover, but the coating cover is attached to an embedded box having an attachment portion at the opening edge. A box-shaped joint frame made of resin, the outer peripheral surface of which is formed in a substantially stepped shape with a predetermined pitch in the opening direction, and the opening surface is shaped to correspond to the opening of the coating allowance cover. And is attached to the attachment portion of the coating allowance cover.

[0009]

[Action]

 According to this configuration, the joint frame can be resin-molded with a simple mold, and the joint frame is resin-molded not as a split joint frame body but as a complete joint frame.

[0010]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

The box joint frame 1 (hereinafter referred to as a joint frame) is used by being inserted between the box body 4 of the embedded box and the coating allowance cover 7, and is a rectangular tube having open faces on both sides. It has the shape of a mold. A screw insertion portion 2 is provided on the inner peripheral surface at a position corresponding to the screw holes 6a and 9 of the box body 4 and the coating allowance cover 7. The outer peripheral surface 3 has a substantially stepped shape with a predetermined pitch in the opening direction, for example, a step difference of about 5 mm. Since there is no part of reverse slope, it is resin-molded by a mold that moves in two directions.

The box body 4 is for accommodating an outlet or the like, has a box shape with one surface open, has a plurality of wiring openings 5, 5, ... On its side surface, and has an inner edge at the opening edge. A tongue piece 6 projecting toward one side is provided with a screw hole 6a in which a female screw is engraved.

Since the coating allowance cover 7 is attached to the opening edge of the box body 4 by the screw S, it has a shape having an opening 8 projecting in the center of a flat square plate, and the screw hole 6a of the box body 4 is formed. A screw hole 9 through which the screw S is inserted is provided at a position corresponding to.

Next, a method of using the joint frame 1 will be described. FIG. 2 shows a state in which only the box body 4 to which the coating cover 7 is screwed is embedded in the concrete 10. In this case, the upper surface of the coating allowance cover 7 is located deeper than the concrete surface 10a, and the upper portion of the coating allowance cover 7 is covered with concrete, so that it cannot be used as it is. Therefore, the joint frame 1 is interposed between the box body 4 and the coating allowance cover 7 to correct the state of the embedded box. FIG. 3 shows a state in which the concrete 10 is partially removed and the joint box 1 is used to correct the state of the embedding box. That is, the joint frame 1 is cut into a required length so that the upper surface of the coating allowance cover 7 and the concrete surface 10a are substantially flush with each other. When the joint frame 1 is cut, the outer peripheral surface 3 has a substantially stepped shape with a predetermined pitch, so it is easy to set a guide for cutting and the cutting tool is perpendicular to the outer peripheral surface 3, so the cutting operation can be performed easily and easily. . Then, remove the screw S that is screwing the box body 4 and the paint cover 7 and pass it again from the screw hole 9 of the paint cover 7 to the screw insertion portion 2 of the joint frame 1 and the screw hole of the box body 4. The coating allowance cover 7 and the joint frame 1 are attached to the box body 4 by screwing with the 6a. The part where the concrete 10 was shaved to install the joint frame 1 is repaired with mortar 11. As a result, the upper surface of the coating allowance cover 7 and the concrete surface 10a are located substantially flush with each other.

FIG. 4 shows a second embodiment of the present invention. This is used when the embedded box is intentionally deeply embedded in the concrete 10 to leave a space between the coating allowance cover 7 and the concrete surface 10a. In this case, the joint frame 1 needs to be formed such that the cross section of the space formed by the inner peripheral surface thereof is larger than the opening of the coating allowance cover 7. Then, the joint frame 1 is attached to the embedding box so that the opening 8 of the coating allowance cover 7 is located inside the opening surface of the joint frame 1. That is, the joint frame 1 is cut into a required length so that the upper surface of the joint frame 1 and the concrete surface 10a are substantially flush with each other. Then, by passing the screw S from the screw insertion portion 2 of the joint frame 1 through the screw hole 9 of the coating margin cover 7 and screwing it into the screw hole 6a of the box body 4, the joint frame 1 and the coating cover 7 are joined together. It is attached to the main body 4. As a result, the upper surface of the joint frame 1 and the concrete surface 10a are flush with each other.

Further, the joint frame 1 can be used as a so-called coating margin cover joint frame by partially modifying the second embodiment. That is, a tongue piece 8a is provided in the projecting opening 8 of the coating allowance cover 7, and the tongue piece 8a has a screw hole 8b. The joint frame 1 is formed to have a size such that the opening surface of the joint frame 1 and the opening 8 of the coating allowance cover 7 substantially coincide with each other, and the inner frame has a screw provided on the tongue piece 8a of the coating allowance cover 7. A screw insertion portion 2 is provided so as to correspond to the hole 8b. The joint frame 1 is screwed to the coating cover 7 with the screw S.

In the above-described embodiment, the joint frame has a rectangular tube shape according to the shape of the embedding box, but it may be, for example, a round tube shape or a polygonal tube shape, and the shape is not particularly limited. . Further, although the box body, the cover, and the joint frame are attached by screws, in some cases, attachment methods other than the screws, for example, engaging portions may be provided on each of them to perform connection by engagement. Therefore, the screw insertion portion is not always necessary.

[0018]

[Effect of device]

 In the joint frame for a box according to the first aspect, the joint frame can be resin-molded with a simplified mold because the outer peripheral surface is formed into a substantially stepped shape, thereby reducing the manufacturing cost. Also, since the resin is molded as a complete joint frame instead of the divided joint frame, the assembling work can be omitted.

The box joint frame according to claim 2 can be used even in the case where it is desired to form a space between the coating cover and the concrete surface when the embedded box is embedded, in addition to the above effects. .

The box joint frame according to claim 3 has the above-mentioned effect and has only a connecting relation with the paint allowance cover. Therefore, when it is necessary to attach the joint frame, the box main body and the paint allowance cover are provided. Do not need to disassemble.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view showing a state in which concrete is cut out at a stage where only the burying box is buried.

FIG. 3 is a side view showing a state where the concrete is cut out in its completed state.

FIG. 4 shows a completed state of a second embodiment of the present invention,
It is a side view of the state which cut out concrete.

[Explanation of symbols]

 1 Box connection frame 3 Outer peripheral surface 4 Box body 7 Coating cover 8 Opening 8a Tongue 8b Screw hole

Claims (3)

[Scope of utility model registration request] 1. A tubular frame made of resin, which is interposed between a box main body forming an embedded box and a coating cover, the outer peripheral surface of which is substantially stairs at a predetermined pitch with respect to the opening direction. Box joint frame characterized in that it is formed in the shape of a box. 2. A tubular frame made of resin, which is attached to an embedded box composed of a box body and a coating cover, the outer peripheral surface of which is substantially stairs at a predetermined pitch with respect to the opening direction. A joint frame for a box, characterized in that a cross section of a space formed in a tubular shape and formed by a cylindrical inner peripheral surface is formed larger than an opening of the coating allowance cover. 3. A tubular resin joint frame for a box, which comprises a box body and a coating cover, and the coating cover is attached to an embedded box having an attachment portion at the opening edge. The outer peripheral surface is formed in a substantially step shape with a predetermined pitch with respect to the opening direction, and the opening surface is formed in a size corresponding to the opening of the coating allowance cover. A box joint frame characterized by being attached.