JPH1046748A - Sleeve fixing hardware - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fit a sleeve, and quickly and accurately fix the sleeve. SOLUTION: This hardware is formed out of a support rod 1 fixed to a skeleton reinforcement, and a sleeve presser mounted on the support rod 1 for holding a sleeve in cooperation with the support rod 1. Reinforcements clips 2 are arranged on the support rod 1 so as to be freely slidable and, then, secured via the positional adjustment of the support rod 1. The sleeve presser is bent at a two-stage angle and formed like a Japanese chess piece, but may be shaped like a U-shape, a V-shape or the like. Stoppers 4 are fitted to the sleeve presser, and secured via the positional adjustment of the sleeve presser.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for fixing a sleeve in, for example, a reinforced concrete (RC) building or an SRC (steel reinforced concrete) building.

[0002]

2. Description of the Related Art In general, through-holes are often formed in beams, walls and the like of such RC and SRC buildings. In this case, concrete is cast by fixing the sleeve to the reinforcing bar for the frame in the frame work.

Conventionally, for example, in order to fix a sleeve to a beam reinforcing bar, as shown in FIG. 6, a supporting reinforcing bar F is fixed along a stitch line R near a through hole by a number line. The sleeve S was fastened and fixed by a number line on the upper side.

[0004]

However, the above-mentioned conventional method for fixing the sleeve requires not only a special tool for tightening the number line, but also requires skill in mounting, and also requires adjustment of the fixing position. Or
There were problems such as labor and time required due to the large number of fixing points.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a sleeve in which a sleeve can be easily mounted and can be fixed at an arbitrary position quickly and reliably. An object of the present invention is to provide fixing hardware.

[0006]

According to the present invention, there is provided a sleeve fixing metal, comprising a supporting rod fixed to a reinforcing bar for a frame, a sleeve retainer attached to the supporting rod and holding the sleeve between the supporting rod. , Comprising: A reinforcing bar clip is slidably provided on the support rod, and fixed while adjusting the position of the support rod. The sleeve holder is bent and formed in a two-stage mountain shape like a shogi piece shape. The sleeve retainer may have a U-shaped or V-shaped shape. Also, a feature is provided in which a stopper is provided on the sleeve retainer so that the position of the sleeve retainer is adjusted and fixed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a support rod, which is formed of a flat bar in this embodiment, but may be any of a round steel, a square steel, and a shaped steel such as a C-type or an L-type.

[0008] At least two rebar clips 2 are attached to the support rod 1. As is clear from FIG. 2, the reinforcing bar clip 2 is formed in a substantially U-shape, and a through hole 2a 'is formed in the intermediate piece 2a, on which the support rod 1 slides. It can be freely inserted. One side piece of the reinforcing bar clip 2 is a hook 2b, and a bar such as a stirrup R of a beam reinforcing bar is sandwiched between the hook 2b and the support rod 1 inserted therethrough. The other side piece is fastened and fixed by a fastening screw 2c screwed. In addition, at both ends of the support rod 1, stopper portions 1a which are crushed in a flat shape are formed so that the reinforcing bar clips 2 do not come off and come off.

Reference numeral 3 denotes a sleeve holder, which is formed by folding a two-stage mountain shape like a shogi piece.
In the present embodiment, the estimated angle θ between the first bent portions 3a is
1 and the first-stage bent portion 3a and the second-stage bent portion 3
The estimated angle θ2 of b is set to about 120 °, but is not limited to this. In short, sleeves having various pipe diameters are stably held between the support rod 1 and the support rod 1. Any shape can be used. Also, the cross-sectional shape of the sleeve retainer 3 is not limited to the flat bar steel of the present embodiment, but may be any of round steel, square steel, and C-shaped and L-shaped shaped steel. It should be noted that the sleeve holder in the present invention is not limited to the shape of the shogi piece, and may be, for example, U-shaped or V-shaped.

Reference numeral 4 denotes a metal fitting formed by being bent in a U-shape. As is apparent from FIG. 3, through-holes 4a 'are formed in both side pieces 4a. A support rod 1 is slidably inserted through the support rod 1, and a sleeve retainer 3 is inserted between the support rod 1 and the intermediate piece 4b so as to intersect. Reference numeral 4c denotes a tightening screw which tightens and fixes the sleeve retainer 3.

Since the sleeve fixing hardware of this embodiment is constructed as described above, in order to fix the sleeve to the beam rebar, first, as shown in FIG.
The rebar clip 2 is moved to a fixed position while being slid along, the tightening screw 2c is loosened, and the stirrup R is sandwiched between the hook portion 2b and the support rod 1. Tighten and fix with the screw 2c.
In this case, the support rod 1 is fixed by the tightening screw 2c while adjusting the height position of the support rod 1 so that the upper end surface of the support rod 1 is located at the lowermost end of the sleeve S.

When the support rod 1 is fixed at a predetermined position,
With the tightening screw 4c of the stopper 4 of the sleeve holder 3 loosened, the sleeve holder 3 is lifted, and the sleeve S is inserted between the sleeve holder 3 and the support rod 1. Subsequently, when the sleeve retainer 3 is lowered, the plurality of inner surface portions of the sleeve retainer 3 abut against the sleeve S mounted on the support rod 1 to securely hold the sleeve S so as not to be shaken. In this state, the fastening screw 4c of the stopper 4 is tightened, the sleeve holder 3 is tightened and fixed to the support rod 1, and the sleeve S is fixed.

FIGS. 5A and 5B show another mounting example of the sleeve fixing hardware. FIG. 5A shows an embodiment in which the sleeve S is positioned and fixed below the support rod 1, and FIG. This embodiment shows an embodiment in which the support rod 1 is vertically attached to the beam main reinforcement, and the sleeve S is positioned on the side of the support rod 1 and fixed.

[0014]

According to the present invention, 1) the sleeve can be securely and stably fixed to an arbitrary position of the frame reinforcing bar. 2) It can correspond to sleeves of various pipe diameters.

[Brief description of the drawings]

FIG. 1 is a front view (A) and a top view (B) showing an embodiment of a sleeve fixing metal according to the present invention.

FIG. 2 is a perspective view of a reinforcing bar clip of a support rod.

FIG. 3 is a perspective view of a stopper without three holding.

FIG. 4 is an explanatory view of a sleeve fixing operation using hardware in the embodiment of FIG. 1;

FIG. 5 is an explanatory view showing another example of attachment of a sleeve fixing hardware.

FIG. 6 is an explanatory view showing an example of fixing a conventional sleeve.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support rod 1a Stopper part 2 Reinforcing bar clip 2a Intermediate piece 2a 'Penetration hole 2b Hook part 2c Tightening screw 3 Sleeve holder 3a Bend part 3b Bend part 4 Stopper 4a Side piece 4a' Penetration hole 4b Intermediate piece 4c Tightening screw F Reinforcing bar R Stirrup S Sleeve

Claims (4)

[Claims] 1. A sleeve fixing metal, comprising: a support rod fixed to a skeleton reinforcing bar; and a sleeve retainer attached to the support rod and holding a sleeve between the support rod. 2. The metal fitting for fixing a sleeve according to claim 1, wherein a reinforcing bar clip is slidably provided on said support rod so as to be fixed while adjusting the position of said support rod. 3. The sleeve retainer is shaped like a shogi piece.
The metal fitting for fixing a sleeve according to claim 1 or 2, wherein the metal fitting is formed in a stepped shape. 4. A stopper is provided on the sleeve retainer,
4. The sleeve fixing metal according to claim 1, wherein the fixing is performed while adjusting the position of the sleeve press.