JPH0552097U - Fixtures for concrete buried objects - Google Patents

Abstract

(57) [Summary] [Purpose] Boxes for electrical wiring, conduit terminal protectors,
Alternatively, a box for fluid pipes such as hot water, water, gas, etc., or a concrete buried object such as a fluid pipe terminal protector can be dropped from above the concrete formwork and easily fixed to the formwork forming a side wall such as a building beam. A fixture that can be provided is provided. [Structure] The fixture 1 is manufactured by bending a metal plate into an L shape, and ribs 11 for reinforcement are formed on side edges of the arm 3 in the width direction. At one end of the fixture 1, an insertion hole 21 for inserting a nail or a screw is formed as a fixing portion 2 to a form forming a slab. In order to attach the embedded object 4 to the arm portion 3 of the fixture 1, a pair of left and right protrusions 31 that are bent toward the fixed portion 2 side are provided, and a flange portion 41 is formed on the peripheral edge of the embedded object 4 that is attached. ,
A notch 42 into which the protruding piece 31 is fitted in the collar portion 41.
Are formed.

Description

[Detailed description of the device] [Industrial application]

The present invention provides a concrete buried object, such as a box for electric wiring, a conduit tube terminal protector, a box for fluid pipe piping for hot water, water, gas, etc., a fluid tube terminal protector, etc. above the concrete form. The present invention relates to a fixture that is dropped from the inside to be fixed to a formwork that forms a side wall such as a beam of a building.

[0002]

[Prior Art]

 In piping work for wiring cables etc. behind the double ceiling through the inside of the side wall, there is also a narrow space between the formwork used to construct the side wall and the skeleton rebar, especially concrete construction. Since the reinforcing bars, which are the skeletons, are densely arranged in the vertical and horizontal directions inside the beam, it is difficult to fix embedded objects such as terminal fixings and boxes to the formwork by nailing.

On the other hand, in the side walls other than the beams, it is possible to fix the embedded object in the formwork through the gaps of the rebar reinforcement, but when the formwork is erected on both sides, from the back side The embedded object cannot be fixed to the formwork.

Therefore, conventionally, as shown in FIG. 12, a conduit B having one end connected to a box B installed in a side wall is piped to the slab at the other end, and a terminal is fixed on a mold forming the slab. This was done by fixing the tool 4a and connecting the conduit tube P to the terminal fixing tool 4a.

However, in such a piping method, there are many bent portions of the conduit tube P, and the degree of bending of the conduit tube is also steep, so that the wiring resistance of the cable C becomes large, and there is a problem that it takes time for wiring work. However, there is a problem that the conduit P is crushed because the amount of the conduit P used is large and it is uneconomical and a worker walks on the reinforcing bar S in the slab.

In order to solve such a problem, as shown in FIG. 13, a method of fixing a terminal fixing tool 4b for fixing the other end of the conduit P in the beam to the form K1 has been proposed. This thing has a hook 45 at the tip, hooks a bind wire 60 inserted from the outside of the mold K1 on this, and binds the bind wire 60 to a wooden piece 70 outside the mold K1 to draw it toward the mold K1. It is designed to be fixed.

In this case, however, the work of making holes in the mold K1 causes a great damage to the mold, and the terminal fixture 46 temporarily fixed to the reinforcing bar S does not receive the mold K1. There is a problem that the work of inserting the bind wire from the hole and hooking the bind wire 60 on the hook 45 is troublesome and requires a lot of work.

[0008]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a fixture that can easily fix a concrete buried object such as a box or a pipe end fixture in a side wall of a beam or the like. is there.

[0009]

[Means for Solving the Problems]

 That is, the fixture according to the present invention is a fixture for dropping a concrete buried object from above a concrete formwork and fixing it to a formwork forming a side wall such as a beam of a building. An arm that is attached and hangs down from above the form to install the embedded object in the concrete form, and a fixing that fixes the embedded object attached to the arm in close contact with the inner surface of the form. It is characterized in that the parts and the parts are arranged and formed in a substantially L shape.

[0010]

[Action]

 In the fixture according to the present invention, the fixture is attached to the arm of the fixture, and the fixture is dropped from above into the inner space of the side wall of the beam or the like to be embedded in the frame forming the side wall of the beam or the like. The embedded part can be easily fixed to the form by bringing the fixed part into contact with the form forming the slab with the objects in close contact and fixing the fixed part with nailing or the like. Is becoming

[0011]

【Example】

 Hereinafter, a fixture according to the present invention will be described according to an embodiment shown in the drawings. 1 to 4 show an embodiment of a fixture according to the present invention. The fixture 1 is manufactured by bending a metal plate into an L shape, and ribs 11 for reinforcement are formed on side edges of the arm 3 in the width direction. At one end of the fixture 1 is formed an insertion hole 21 for inserting a nail or a screw as the fixing portion 2 to the form K2 forming the slab. As for the structure of the fixing portion 2, in addition to the insertion hole 21, a metal plate forming the fixing tool 1 is punched out by a press to make a sharp end of the metal plate and a projecting piece that can be driven toward the mold K2. It may be installed.

As shown in FIG. 1, the arm 3 of the fixture 1 is provided with a pair of left and right protrusions 31 that are bent toward the fixing part 2 side in order to attach the embedded object 4. In this case, a flange 41 is formed on the peripheral edge of the embedded object 4 to be attached, and a notch 42 into which the projecting piece 31 is fitted is formed in the flange 41. Therefore, as shown in FIG. 2, the embedded object 4 is attached to the fixture 1 by further bending the projecting piece 31 so as to sandwich the flange 41 after the projecting piece 31 is fitted into the notch 42. It has become. In this case, the protruding pieces 31 can be bent in the same direction or in alternate directions, but if they are in alternate directions, the embedded object 4 is securely fixed without falling out in the vertical direction. Therefore, in order to make the bent state of the projecting piece 31 the same when the projecting piece 31 is bent in alternate directions, it is preferable that the projecting piece 31 provided on the arm 3 is also cut and raised in the opposite direction. As a structure for attaching the embedded object 4, in addition to the projecting piece 31, a screw insertion hole may be provided to attach the embedded object with a screw. It may be attached by a body stopper.

The embedded object 4 attached to the fixture 1 has a hub 43 protruding downward and obliquely rearward. The conduit 43 is connected to the hub 43. The slanted hub 43 is provided in order to moderate the bent state of the conduit P to be connected, as shown in FIG. It should be noted that the buried object 4 may have any structure as long as the conduit P is connected to or inserted into the buried object 4, and is not particularly limited to the one provided with the hub 43 as in the embodiment.

When the embedded object 4 is embedded in the beam by using the fixture 1, as shown in FIG. 3, the embedded object 4 is attached to the arm portion 3 of the fixture 1 and the conduit P is connected. In this state, it is dropped into the space inside the beam from above, and the embedded object 4 is brought into close contact with the form K1 forming the beam. In this state, the fixing part 2 is brought into contact with the form K2 forming the slab, the nail 50 is inserted into the insertion hole 21 of the fixing part 2, and the nail 50 is driven into the form K2 to fix the fixture 1. Next, as shown in FIG. 4, concrete W is poured and the fixture 1 is embedded. After the embedding, the lead-in wiring of the cable C, etc. is performed from the opening of the fixture 1 to the back wall of the double ceiling.

5 to 7 show another embodiment of the fixing device according to the present invention, in which the fixing device 1 is provided with the opening 12 in the arm 3. As shown in FIG. 6, the opening 12 is used when the embedded object 4 having the hub 43 projecting obliquely rearward upward is attached to the fixture 1, and the conduit tube can be connected to the hub 43 through the opening 12. It is like this. That is, as shown in FIG. 7, the electric wire tube P piped in the side wall and the electric wire tube P piped from the slab are connected to the buried object 4 so as to be concretely buried. ..

FIG. 8 shows still another embodiment of the fixing device according to the present invention. In this fixing device 1, a plurality of pairs of protrusions 31 are alternately cut and raised on the left and right sides in the longitudinal direction of the arm 3. The long hole 32 is provided in the center of the arm 3, and in the above embodiment, the mounting position of the embedded object 4 with respect to the arm 3 can be changed up and down. It can be changed according to the embedded position of the fixture 4 in the beam or the like. The long hole 32 is provided for connecting the conduit to the buried object 4. Therefore, instead of the long hole 32, a hole which is regularly provided may be used, or a part of the arm 3 may be cut out instead of the hole.

The form of the fixing tool 1 may be, for example, as shown in FIGS. 9 to 11 in correspondence with the shape of the buried object 4 in addition to the embodiment. In the above-mentioned embodiment, the buried object 4 to which the conduit P is connected has been described. However, a fluid pipe for returning a fluid such as hot water, water, gas or a protection pipe into which the fluid pipe is inserted is connected, The same is true for buried objects.

[0018]

[Effect of the device]

 As described above, in the fixture according to the present invention, the embedded object is attached to the arm portion of the fixture, and the fixture is dropped into the side wall of the beam or the like from above and embedded in the form forming the side wall of the beam or the like. By fixing the fixing part with nailing etc. while the objects are in close contact with each other, it is not necessary to perform troublesome work such as mounting the embedded object by drilling holes in the conventional formwork, and it is possible to install it inside the beam or side wall. The buried object can be fixed easily and quickly.

Such a fixture solves the problem that a large amount of the conventional conduit is used and the problem that the cable has a large wire resistance due to a large number of bent parts and is steep, which is troublesome for the work. can do. It is also effective when fixing an embedded object in the side wall where the formwork stands on both sides.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a fixture according to the present invention.

FIG. 2 is a perspective view showing a state in which an embedded object is attached to the fixture shown in FIG.

FIG. 3 is a side view showing a usage state of the fixture.

FIG. 4 is a side view showing a usage state of the fixture after burying concrete.

FIG. 5 is a perspective view showing another embodiment of the fixture according to the present invention.

6 is a perspective view showing a state in which an embedded object is attached to the fixture shown in FIG.

FIG. 7 is a side view showing a usage state of the fixture after the concrete is buried.

FIG. 8 is a perspective view showing still another embodiment of the fixture according to the present invention.

FIG. 9 is a sectional view showing a still further embodiment of the fixture according to the present invention in a use state.

FIG. 10 is a cross-sectional view showing a still further embodiment of the fixture according to the present invention in a use state.

FIG. 11 is a cross-sectional view showing a still further embodiment of the fixture according to the present invention in a use state.

FIG. 12 is a side view showing a piping state according to a conventional piping method.

FIG. 13 is a side view showing a conventional piping method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixture 2 Arm part 3 Mounting part 4 Embedded object 12 Opening 21 Insertion hole 31 Projection piece B Box C Cable P Conduit

Claims (1)

[Scope of utility model registration request] 1. A fixture for dropping a concrete buried object from above a concrete formwork to fix it to a formwork forming a side wall such as a beam of a building, to which the concrete buried object is attached. To be installed in the concrete formwork, the arm part that is hung from above the formwork and the fixing part that fixes the embedded object attached to the arm part to the inner surface of the formwork are substantially L-shaped. A fixture for a concrete buried object, characterized by being formed and arranged.