JP2001107371A - Anchor bolt holding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To skillfully and appropriately set and accurately implant an anchor bolt to be implanted in a concrete foundation before concrete placing. SOLUTION: This anchor bolt holding tool is integrally provided with a bolt clamp part 2 vertically supporting an anchor bolt 3 and a reinforcement clamp part 4 passing the reinforcement in the direction crossing at right angles with the bolt insertion direction of the bolt clamp part, the bolt clamp part 2 is formed with through holes 6a, 6b with slits 9a, 9b opened laterally, the reinforcement clamp part 4 is formed with an insertion part 7 forming a downward slit port, the anchor bolt 3 and the reinforcement 5 are slit-clamped in the bolt clamp part 2 and the reinforcement clamp part 4 respectively through respective slits, and the both can be connected and held in the crossed state so that the anchor bolt 3 can be supported in an erected state relative to the reinforcement 5 arranged in the concrete foundation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retainer for an anchor bolt for supporting an anchor bolt planted on a concrete foundation with a reinforcing steel bar at the time of casting concrete and holding the anchor bolt in an upright state.

[0002]

2. Description of the Related Art When planting anchor bolts on a concrete foundation in the foundation work of a building or the like, usually an anchor bolt is attached to a reinforcing bar assembled for arranging a reinforcing wire, and a wire is arranged at a predetermined height. The steel wire is wound and bound, held in an upright posture, and then the lower half is buried together with the rebar by concrete poured into a formwork and planted in an upright state.

[0003] However, this method is performed by a simple operation of winding a wire and binding an anchor bolt to a reinforcing bar, but it is difficult to stably fix it in a fixed position. Sex is very bad. In particular, anchor bolts need to be planted in the fixed positions indicated in the design drawings due to the fixed objects such as the foundation of the building and the foundation of the machinery, but when winding the wire by hand, inconsistency occurs. There was a problem that it could not be easily fixed and fixed in a fixed position, and that it could be loosened due to the degree of tightening, causing a displacement due to pressure during concrete driving.

[0004] Further, since a plurality of anchor bolts are usually fixed, it is necessary to implant each anchor bolt in a fixed position. If there is any discrepancy between them, it is necessary to adjust the position and height. However, in the case of binding and fixing with a wire, it is troublesome to loosen or tighten it, and there is a problem that it cannot be adjusted easily and takes a lot of work.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems associated with the conventional anchor bolt fixing.
This was developed to solve this problem. The purpose is to enable the anchor bolts to be fixed neatly in place according to the design drawing. It is an object of the present invention to provide a retainer for anchor bolts which can be moved so that a fixing position can be easily adjusted.

[0006] As described above, since the anchor bolts are fastened using reinforcing bars arranged on the concrete foundation as a scaffold, work in a narrow space is required, which lowers the work efficiency, and causes unevenness and unevenness. This leads to stable binding and fixing work. An object of the present invention is to provide an anchor bolt holder which can easily and quickly perform uniform and stable fastening even under such working conditions.

[0007]

That is, according to the present invention, when anchor bolts are conventionally fixed to a reinforcing bar arranged in a concrete foundation with wires bound and fixed by wires, an anchor is fixed by a holding tool. The bolt and the rebar are bound and fixed.

[0008] The feature is described in detail. A bolt holding portion for holding an intermediate portion of the length of the anchor bolt disposed vertically and a direction perpendicular to the bolt insertion direction of the holding portion. A rebar holding portion for passing the rebar in the direction, the bolt holding portion is formed with a laterally opening interrupt port, and the rebar holding portion is formed with a downwardly opening interrupt port. An object of the present invention is to provide a holding device for anchor bolts, wherein an anchor bolt and a reinforcing bar are interrupted and held through an interruption port, and both are connected and held orthogonally.

According to the present invention, in the holding device for an anchor bolt, the bolt holding portion includes two holding plate pieces which are arranged side by side at an interval vertically and penetrates both the holding plate pieces vertically. It is an object of the present invention to provide an anchor bolt holder comprising: a bolt insertion hole to be inserted; and an interruption port cut from the common one side edge of the holding plate piece toward the bolt insertion hole.

The present invention also relates to the anchor bolt holding device, wherein the rebar holding portion is formed to have a substantially U-shaped cross section that opens downward, and at least one of the openings that opens downward. An object of the present invention is to provide a retainer for anchor bolts, characterized in that a raised convex portion for preventing retaining is provided on the facing surface of the anchor bolt.

The holder according to the present invention is formed by molding a synthetic resin having a required rigidity and elasticity into a material. The rigidity of the material allows the anchor bolt to be supported on the reinforcing bar. The mounting efficiency of the anchor bolts to the reinforcing bar is improved by improving the mounting property to the reinforcing bar. Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings, and the features will be clarified.

[0012]

Embodiment

1 is a perspective view of a holder for an anchor bolt according to the present invention. 2A is a front view, FIG. 2B is a plan view, FIG. 2C is a left side view, FIG. 2D is a bottom view, and FIG. 3 is a perspective view illustrating a use state. In the drawings, reference numeral 1 denotes a holder, 2 denotes a bolt holding portion for holding an anchor bolt 3, and 4 denotes a reinforcing bar holding portion for holding a reinforcing bar 5 embedded in a concrete foundation.

The holder (1) of the present invention is formed by integrally molding a synthetic resin having appropriate rigidity and elasticity by injection molding or the like. Here, a thermoplastic synthetic resin, more specifically, polyethylene is used. And mass-produced by injection molding.

As shown in the figure, the bolt holding portion 2 and the reinforcing bar holding portion 4 are integrally formed side by side, and one of the bolt holding portions 2 has a substantially circular shape for vertically passing the anchor bolt 3. Bolt insertion holes 6a and 6b are provided, and the other reinforcing bar holding portion 4 is provided with an inserting portion 7 through which the reinforcing bar 5 passes sideways.

The bolt holding portion 2 shown here obtains a stable holding force while saving material, and furthermore, two holding plates which are juxtaposed at an interval above and below in order to improve the mountability to the bolt. The bolt insertion holes 6a and 6b are formed from the pieces 8a and 8b, and penetrate vertically through the central portions of the two plate pieces.

Further, V-shaped cuts are formed in the two plate pieces 8a and 8b from one common side edge, here, one side edge on the front side to form interruption ports 9a and 9b. A part of the insertion holes 6a, 6b is opened and divided, and each holding plate piece 8
a, 8b are formed as if they consisted of two opposing holding pieces.

The bolt insertion holes 6a and 6b are formed to have a diameter slightly smaller than the shaft diameter of the anchor bolt 3 to be mounted, so that adhesion can be achieved when the anchor bolt is held as described later. The mouths 9a and 9b are cut into a V-shape so that the jaws 10a and 10b
Is formed to assist in guiding the interruption of the bolt and to prevent the bolt from being easily pulled out after being mounted in the insertion holes 6a and 6b.

The rebar holding portion 4 is formed in a U-shaped cross section which is open downward, and the upper surface 11 is attached to the bolt holding portion 2.
Of the holding plate piece 8a. One face 12a of the two faces 12a and 12b facing each other is shared as a connecting wall of the bolt holding portion 2.

The two longitudinal surfaces 12a and 12b are opposed to each other at a slightly smaller interval than the shaft diameter of the reinforcing bar 5 to be mounted. Are raised so as to face each other to narrow the opening width, and the insertion portion 7 for passing the reinforcing bar 5 is provided inside the raised protrusions 13.

The holder according to the present invention is constructed as described above. In use, first, the bolt holding portion 2 is attached in the middle of the length of the anchor bolt 3, and the upper and lower interruption ports 9a,
After being received by 9b, one surface 12b of the rebar holding portion 4 is pressed to be received in the bolt insertion holes 6a, 6b of the holding plate pieces 8a, 8b, and is attached to the anchor bolt. When the bolt holding portion 2 is pressed toward the anchor bolt 3, the interruption port 9
The V-shaped inclines of the a and 9b are guided to expand and extend over the jaws 10a and 10b to receive the anchor bolts in the insertion holes 6a and 6b.

The retainer (1) mounted on the anchor bolt 3 stops at the position where it is mounted by being pinched by the restoring force of the bolt holding portion 2, but this state is being pinched by the restoring force of the material. Therefore, when the anchor bolt is moved by applying a force in the length direction thereof, the anchor bolt can move against the pinching. Of course, once the holder is mounted, if it is forcibly pulled apart, the interruption ports 9a and 9b can be expanded again and removed from the anchor bolt 3, and can be remounted by pressing the interruption ports 9a and 9b. Changing the attachment position with respect to the anchor bolt 3 can be easily performed.

In the example of use shown in FIG.
FIG. 2 shows a case of supporting by individual holders 1. In this example, two suitable reinforcing bars 5, which are arranged sideways from among reinforcing bars buried in a concrete foundation (not shown),
5 is selected, and two holders 1 and 1 are attached to the anchor bolt 3 in accordance with the interval between the reinforcing bars, and are attached.

After the holders 1, 1 are mounted on the anchor bolts 3 by the above-described method, the bolts are attached vertically to the two rebars 5, 5 so that the rebars project laterally from the anchor bolts. When the holding portions 4, 4 are made to face from directly above the rebars 5, 5 and pressed from above so as to rest on the rebars 5, the downwardly opened insertion portions 7 are opened and the respective rebars 5, 5 are received and stopped. Will be.

In the rebar holding portion 4 shown in this embodiment, as described above, the insertion portion 7 is smaller than the shaft diameter of the rebar 5 and the protruding projections 13 are provided at two opposing openings. If the insertion is made by pressing against the insertion portion, after being received by the insertion portion 7, the insertion portion 7 is sandwiched by the restoring force of the material, so that the mounting position cannot be easily changed.

This pinching is effective for holding the anchor bolts 3 at a fixed position, and particularly for preventing the concrete bolts from moving due to the flow pressure when the concrete is poured. On the other hand, it is possible to move by pressing in the longitudinal direction of the reinforcing bar against the force of the pinching, and therefore, when adjusting the mounting position of the anchor bolt, it can be done by sliding without removing it, which is convenient and convenient. is there.

Although the present invention has been described based on the embodiments,
As is apparent from the above structure, the holder of the present invention can be mounted by pressing the bolt holding portion 2 against the anchor bolt 3 and pressing the reinforcing bar 5 from above. Since the mounting can be performed by facing and pressing the portion 4, it can be used extremely easily.

Moreover, the holder is inserted together with the anchor bolts between the assembled reinforcing rods while being attached to the anchor bolts 3 and is attached to the reinforcing rods 5 extending in the horizontal direction, and then the reinforcing rod holding portion 4 is pressed from above to thereby hold both of them together. Therefore, even if the reinforcing steel bar is narrowed by being surrounded by a concrete formwork, it can be assembled neatly.

More advantageously, the holder of the present invention is attached to the anchor bolt 3 and the reinforcing bar 5 in a state where the holder is sandwiched between the anchor bolt 3 and the reinforcing bar 5, respectively. Since it is tied, it can be moved in the longitudinal direction with respect to the bolt and the rebar, respectively, so when it is not installed in the fixed position after installation, it can be slid horizontally or vertically to easily change the installation position to horizontal, Alternatively, the height of the bolt can be adjusted.

In the embodiment, the case where the bolt holding portion 2 is constituted by the two holding plate pieces 8a and 8b has been described. However, this is because the material is saved, the elastic force is adjusted, and the holding by two upper and lower points is performed. It is possible to obtain a stable mounting by holding, and depending on the selection of the material, even if the third plate is added,
Implementation is possible even if a and 8b are continuously connected to one another.

In order to stably hold the anchor bolt 3 and the reinforcing bar 5, the bolt insertion holes 6a,
6b are provided with jaws 10a and 10b, and the insertion portion 7 is provided with raised protrusions 13 and 13, which are formed by the elasticity of the material or by selecting the thickness of the plate pieces 8a and 8b or the surface 12b. The height and the shape are selected and not specified. Of course, in the embodiment, the two jaws 10a, 10b and the raised protrusions 13, 13 are provided facing each other, but any one of them can be implemented, and a predetermined effect can be expected.

[0031]

As described above, the holder of the present invention can be easily attached to an anchor bolt and can be easily attached to a reinforcing bar. In addition, the work efficiency can be greatly improved as compared with the conventional binding work using a wire or the like.

Further, since the holder of the present invention can be slid in the longitudinal direction after being attached to the anchor bolt and the rebar, the position can be changed and adjusted at the time of attachment work or after attachment. Is possible,
It is extremely convenient when aligning in place. In particular, since the anchor bolt is often used to fix the foundation using a plurality of anchor bolts, the position adjustment is an important issue, and the holder of the present invention can sufficiently cope with this.

Of course, the holder of the present invention can be easily handled as described above, and can be integrally molded by injection molding or the like and can be mass-produced, so that it can be provided at a low cost. It is advantageous without affecting the construction cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a holder for an anchor bolt according to the present invention.

2 (a) is a front view, FIG. 2 (b) is a plan view, and FIG. 2 (c) shows an anchor bolt holding tool from multiple directions.
Is a left side view, and FIG.

FIG. 3 is a perspective view for explaining the actual use of the anchor bolt holder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Anchor bolt holding tool 2 Bolt holding part 3 Anchor bolt 4 Reinforcing bar holding part 5 Reinforcing bar 6a, 6b Bolt insertion part 7 Reinforcing bar insertion part 8a, 8b Holding plate pieces 9a, 9b Interruption ports 10a, 10b Jaw 12a, 12b The surface which composes the reinforcing bar holding part 13 The raised convex part

Claims (3)

[Claims] 1. A bolt holding portion for holding an intermediate portion of a length of an anchor bolt provided vertically and a reinforcing bar holding portion for passing a reinforcing bar in a direction perpendicular to a bolt insertion direction of the holding portion. The bolt holding portion is formed integrally with an interrupting opening that opens laterally, and the reinforcing steel holding portion is formed with an interrupting opening that opens downward to interrupt the anchor bolt and the reinforcing bar through the respective interrupting holes. A holding tool for an anchor bolt, wherein the holding tool is held and connected and held in an orthogonal manner. 2. The bolt holding portion according to claim 1, wherein the bolt holding portion is provided with two holding plate pieces which are juxtaposed at an interval vertically and a bolt insertion hole which penetrates both the holding plate pieces vertically. An anchor bolt holding tool comprising: a holding plate piece; and an interruption port cut from one common side edge of the holding plate piece toward the bolt insertion hole. 3. The rebar holding portion according to claim 1, wherein the reinforcing bar holding portion is formed to have a substantially U-shaped cross section that opens downward, and is retained on at least one of the opposing surfaces of the opening that opens downward. A retainer for an anchor bolt, characterized by having a raised projection for prevention.