JPH0410947B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an outlet box setting tool.

Conventionally, when an outlet box is embedded in a concrete wall, the outlet box is temporarily fixed between a pair of formwork, a hole is made in the formwork, a rod is passed through the hole, and the tip of the rod is inserted into the outlet box. After connecting it to the formwork and setting it in place, concrete is poured between the formwork.
Therefore, it is not easy to set the outlet box in a predetermined position.

In view of the above, the present invention provides an outlet box that can be set in a predetermined position extremely easily by using spring force.

The present invention will be specifically described below based on examples thereof.

In the first embodiment (FIGS. 1 to 4), the setting tool 2 of the outlet box 1 is connected to a base frame 4 fixed to a reinforcing bar 3 and to both the base frame 4 and the outlet box 1. It is equipped with a spring 5.
The base frame 4 and the spring 5 may be formed integrally.

The base frame 4 includes a rectangular plate portion 6 and three narrow band-shaped portions 7 and 8 extending perpendicularly from the edge thereof. The portion 6 has a tongue-shaped connecting portion 9 bent at right angles with cuts made at its four corners, and a hole 11 is bored in each connecting portion, and a common connecting portion is provided for each pair of upper and lower holes. A rod 12 passes through it. The portion 6 further has a pair of upper and lower tongue-shaped connecting portions 13 bent at right angles by making a cut in the middle of the connecting portions 9, 9, and holes 14 are bored in each connecting portion, and connections are made to these holes. pin 1
5 penetrates. This pin is used to hold the spring 5 in its drawn state as described below.
The parts 7, 8 support the outlet box 1, the middle part 7 furthermore having a hole 16 for guiding the spring 5.

The spring 5 is a band-shaped leaf spring formed as follows. A flat plate portion 17 at one end is fixed to the upper side of the portion 6 with a rivet 18, an arcuate portion 19 extends from one end in the direction in which the portion 6 extends, and a narrow flat plate portion 20 extends parallel to the portion 6 from the one end to the portion 7. It extends from the lower end diagonally upward in the direction of the portion 6, and is further folded diagonally downward to form a bent portion 21.
is formed, and a flat plate portion 22 extends downward from one end thereof, and the flat plate portion 22 is in slidable contact with the portion 6. The flat plate part 20 has a tongue-shaped connecting part 23 which is cut and bent, and a hole 24 for the connecting pin 15 is bored in the connecting part. When the spring 5 is pulled toward the part 6, the connecting part 23 passes through the hole 25 of the part 6 and coincides with the hole 14 of the connecting part 13, and by passing the connecting pin 15 through these holes, the spring 5 is tightened. is maintained in the same state. A tongue-shaped connecting portion 26 formed by cutting and bending the bent portion 21 extends from the lower end of the flat plate portion 20 at right angles in the direction of the portion 6.
This connection 26 is slidably in contact with and below the hole 16 of the part 7, and the width of the connection 26 is the same as that of the hole 16.
Since the width is wider than the width of the portion 6, it acts as a retainer and maintains the connection between the lower end of the flat plate portion 20 and the portion 7. The neck portion 27 between the connecting portion 26 and the lower end of the flat plate portion 20 has a hole 16
The lower end of the flat plate portion 20 is guided along the hole 16.

The base frame 4 is attached to a predetermined position between the pair of formworks 28 and 29 as follows. Reinforcing bars 3 are assembled in a cross-shaped structure, and connecting rods 12 passing through connecting portions 9 of the base frame 4 are passed between the reinforcing bars and connected with wires 30. Furthermore, the tightening screw 31 is screwed into the threaded hole 32 of the base frame 4, and its tip is pressed against the connecting rod 12 to prevent the connecting portion 9 from sliding with respect to the connecting rod.

The flat plate portion 20 of the spring 5 is connected to the outlet box 1
The outlet box 1 is attached to the bottom of the outlet box 1 with bolts and nuts 35 passing through holes 33 and 34, and a flexible electric wire tube 36 is connected to the outlet box 1 with connecting members 37 and 38.

Before the formwork 28 is assembled, the spring 5 is pulled toward the flat plate portion 6 and the connecting portions 13, 1
Connecting pins 15 are passed through holes 14, 14, 24 of 3 and 23 to hold them in a temporary position. In this state, the spring 5 is able to spring the outlet box 1 toward the formwork 28 mainly by the elastic energy stored in the arcuate portion 19 and the bent portion 21.

After installing the formwork 28 so as to face the outlet box 1, connect the connecting pin 15 to the connecting part 1.
3, 23, the outlet box 1 is pressed against the formwork 28 by the elasticity of the spring 5.
The outlet box 1 is now set at the predetermined embedding position.

A string 39 is connected to the connecting pin 15, and the pin can be pulled out by pulling this string.

Note that the bent portion 21 of the spring 5 may be formed in an arc shape, or may be omitted.

As shown in the second embodiment of FIG. 5, the base frame 4 is made by bending the connecting portion 9 at right angles from both the upper and lower sides of the flat plate portion 6, and making a through hole 11 for the connecting rod 12 in the connecting portion. The tip of 9 is bent in the vertical direction, and a hole 41 is bored in that portion 40. When the space between the molds 28 and 29 is narrow, the portion 40 is placed directly against the mold 29 and fixed to the mold by passing screws 42 through the holes 41. Also, the portion 8 is omitted, leaving only the portion 7.

As shown in FIG. 6 of the third embodiment, the spring 5 has both ends 19 bent into an arc shape and is fixed to the portion 6 of the base frame 4, and the bottom of the outlet box 1 is fixed to the intermediate flat plate portion 20. . This spring 5 also has a connecting part 23 with a pin hole 24, and the pin hole 1 corresponding to this connecting part
The connecting portion 13 with 4 is also formed on the base frame 4, and the connecting portion 23
A through hole 25 for this purpose is bored in the base frame 4. Using the pin holes 14 and 24 of these connecting parts 13 and 23 and the connecting pin 15, the outlet box 1 is inserted into the formwork 28 from the temporary position where it is pulled in from the formwork 28, as in the first and second embodiments. It will be moved until it reaches the end.

As described above, the present invention includes a spring 5 connected to the outlet box 1 and a formwork 2 connected to the spring.
In the outlet box setting tool 2, the outlet box setting tool 2 is provided with a base frame 4 fixed between 8 and 29, and the outlet box is brought into contact with the formwork and set at a desired position by the elasticity of the spring. Pass the portion 23 through the hole 25 of the base frame 4, align the pin hole 24 of the connecting portion 23 with the pin 14 of the connecting portion 13 of the base frame 4, and insert the common connecting pin 15 into these pin holes 24, 14. The opening surface of the outlet box 1 is pulled inward from the formwork 28 and is restrained against the elasticity of the spring 5, and the connection pin 15 is pulled out from the pin holes 23 and 14 to release the aforementioned restraint. Since the outlet box 1 is moved by the elastic force of the spring 5 to the embedding position in contact with the formwork 28, setting of the outlet box can be made extremely easy.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is an assembled perspective view of the setting tool, FIG. 2 is a rear view showing the outlet box installed, and FIG. 3 is a view similar to that shown in FIG.
4 is a sectional view taken along the - line in FIG. 2, FIG. 5 is a perspective view of the setting tool of the second embodiment, FIG. 6 is a perspective view of the setting tool of the third embodiment, and FIG. 7 is a side view showing the process of attaching the setting tool of FIG. 6. FIG. In the figure, 1 is the outlet box, 2 is the setting tool,
3 is the reinforcing bar, 4 is the base frame, 5 is the spring, 9 is the connecting part, 1
2 is a connecting rod, 13 is a connecting portion, 15 is a connecting pin, 2
6 is a connecting portion, 28 and 29 are formworks, 31 is a tightening screw, 35 is a bolt/nut, 36 is a pipe, and 39 is a string.

Claims (1)

[Claims] 1 Spring 5 connected to outlet box 1
and a base frame 4 connected to the spring and fixed between the molds 28 and 29, and the outlet box is set in a desired position by bringing the outlet box into contact with the mold by the elasticity of the spring. In ingredient 2,
The spring 5 is provided with a connecting portion 23 with a pin hole 24, and the base frame 4 is also provided with a connecting portion 13 with a pin hole 14.
5, and align the pin hole 24 of the connecting part 23 with the pin 14 of the connecting part 13 of the base frame 4, and pass the common connecting pin 15 through these pin holes 24, 14 to connect the outlet box 1. Opening surface is formwork 2
The connecting pin 15 is held in the plate position pulled inward from the spring 5 against the elasticity of the spring 5, and the connecting pin 15 is inserted into the pin holes 24 and 1.
The outlet box setting tool is characterized in that the outlet box 1 is pulled out from the mold 28 to release the constraint and move the outlet box 1 by the elasticity of a spring 5 to an embedded position in contact with the formwork 28.