JP3066435B1 - Hacker reverser - Google Patents

Abstract

[PROBLEMS] To rebar is assembled by using a reinforcing bar binding device bent in a V-shape, grasping the hand of the binding device, rotating with the wrist, and connecting the rebars with an iron wire, but the construction site is a narrow place. At the time of the hand can not be rotated. SOLUTION: A grip portion 1 provided with a concave groove 1a on an inner peripheral surface includes:
The rotor 2 provided with the spiral groove 2a on the outer peripheral surface is fitted therein, the steel ball 4 is loosely fitted in the space between the concave groove and the spiral groove, and the locking edge 1c projecting inward at the tip of the gripping portion and the rotor are inserted. Cap 1d that supports the pressing coil spring 3 over the flange edge 2b of the head and covers the rotor head
Is fitted into the opening at the base end of the gripping portion, and a blind hole 2c and a screw hole 5c communicating with the blind hole are formed in the protruding portion of the rotor protruding from the front end of the grip portion to form hooks 5. A prism 5b was formed at the base end of the hook rod 5, and the prism was removably inserted into the blind hole and fixed with the fixing bolt 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a formwork by fastening and assembling a reinforcing bar of an aggregate for a concrete manufacturing frame for reinforcing a slope with an iron wire, and fastening a scaffold for a construction site with an iron wire. It relates to a hacker reverser used when assembling and building.

[0002]

2. Description of the Related Art When binding and assembling rebars of aggregates for a concrete manufacturing frame with two folded iron wires, a hook is formed at a tip and work is performed on a base portion of an iron wire binding tool consisting of a rod bent in a rectangular shape. The user twists the iron wire hooked to the hook by turning with his wrist to construct a formwork.

[0003]

When the rebar assembly site is extremely narrow, it is difficult for an operator to insert his hand, so that the wrist cannot be rotated and the iron wire cannot be bound.

[0004]

A rotor composed of a piston member provided with a spiral groove on the outer peripheral surface is fitted into a gripping portion composed of a cylinder member provided with a number of concave grooves in the inner peripheral surface in the diameter direction. A steel ball is loosely fitted in the space formed between the concave groove and the spiral groove, and a step is provided on the inner periphery of the base end of the grip portion to lock the flange edge provided on the rotor head, In addition, a cap covering the flange edge is fitted to the step, and the tip of the rotor is projected from the tip of the gripping portion, and a blind hole and a through hole intersecting with the blind hole are formed in the protrusion, The base end of a hook rod with a hook formed at the tip is formed in a prism that fits into a blind hole, and a screw hole that communicates with the through hole is provided in the prism and the hook rod can be attached to and detached from the rotor with fastening bolts And the press coil spring is elastically supported between the locking edge and the flange edge that protrude into the inner periphery of the tip of the gripping part, so that the rebar assembling place is extremely narrow. And to provide a hacker reverser of iron wire bundling the case can be easily construction.

[0005]

FIG. 1 is a sectional view showing an iron wire tying tool according to the present invention, in which a large number of concave grooves 1a are provided at equal intervals in an inner peripheral surface of a cylinder member in a diametrical direction, and inside a base end opening. The grip portion 1 is formed by providing a step portion 1b around the periphery and inwardly projecting the locking edge 1c at the inner periphery of the distal end. A spiral groove 2a is recessed in the outer peripheral surface of the piston member, and a flange edge 2b is protruded from the base. The pressing coil spring 3 is elastically supported between the locking edge 1c and the flange edge 2b. A rotor 2 having a hole 2c and a through hole 2d intersecting with the blind hole 2c is rotatably fitted into the hollow gripping portion 1, and steel is inserted into a space formed between the concave groove 1a and the spiral groove 2a. The ball 4 is loosely fitted to cause the tip of the rotor 2 to protrude from the grip portion 1, and the prismatic portion 5 b formed at the base of the hook rod 5 having the hook 5 a at the tip is formed in the blind hole 2 c of the protruding portion. A screw hole 5c is drilled in the prism 5b to communicate with the through hole 2d of the rotor, and a fastening bolt 6 is screwed in. The hook rod 5 is detachably attached to the protruding end of the rotor 2. And a stopper piece 7a provided at an appropriate position of the grip portion 1 so as to be removably inserted into the spiral groove 2a of the rotor. Up button 7
Was provided. Since the present invention is configured as described above, even in a narrow place where it is extremely difficult to assemble a reinforcing bar at a construction site of a frame, if the hook rod 5 can be inserted, the hook 5a can be engaged with the binding iron wire. The steel ball 4 floats in the space formed between the concave groove 1a of the gripping part and the spiral groove 2a of the rotor by repeating the operation of stopping and pulling the gripping part 1 at hand and back and forth. The rotor 2 rotates, and the hook rod 5 integrated with the rotor rotates together to bind the iron wire locked to the hook 5a to the reinforcing bar. When the grip portion 1 is pulled close to the hand, the pressure contact between the flange 2b of the rotor and the cap 1d of the grip portion is released, and the pressing coil spring 3 elastically supports the flange edge 2b and the locking edge 1c of the grip portion. Is compressed. When the gripper 1 pulled back is returned, the rotor 2 is pulled back by the elastic force of the pressing coil spring 3, the steel ball 4 moves in the opposite direction, and the hook rod 5 rotates in the reverse direction. When the stop button 7 of the hook rod 5 is pressed, the integral stopper piece 7a is locked in the helical groove 2a of the rotor, so that rotation is prevented, and the grip portion 1 and the hook rod 5 are fixed.

[0006]

If the hook rod 5 can be inserted even in a narrow place where it is extremely difficult to assemble a reinforcing bar, the hook rod 5 is rotated only by the operation of pulling the grip portion 1 close to the hand, and the hook 5a is used. The rebar can be easily united by twisting the iron wire. When the hook rod 5 is released after the reinforcing bars are bound, the pressing coil spring 3 is resilient, and the rotor 2 is pulled back to form the flange 2b.
Is pressed against the cap 1d and returns to the original position, so that the steel ball 4 also moves in the spiral groove 2a in the opposite direction, and the hook rod 5 is reversed.
Further, a hook rod 5 having a desired length can be selected and fixed with a fastening bolt 6, so that a reinforcing bar can be easily bound according to the situation at the construction site. Further, a suitable length can be selected and replaced according to the situation at the site, and the hook 5
When a is broken, it can be easily replaced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a hacker reverser according to the present invention.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 grip portion 1a concave groove 1b step portion 1c locking edge 1d cap 2 rotor 2a spiral groove
2b Flange edge 2c Blind hole 2d Through-hole 3 Pressing coil spring 4 Steel ball 5 Hook rod 5a Hook 5b Square column 5c Screw hole 6 Fastening bolt 7 Stop button

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E04G 21/12 105 B25B 25/00

Claims (1)

(57) [Claims] 1. A rotor comprising a piston member having a spiral groove formed on an outer peripheral surface thereof is fitted into a gripping portion formed of a cylinder member having a plurality of concave grooves formed in a diameter direction of an inner peripheral surface. A steel ball is loosely fitted into a space formed between the helical groove, a step is provided on the inner periphery of the base end of the gripping portion, and a flange provided on the rotor head is locked. A cap covering the step is fitted to the step, the tip of the rotor is projected from the tip of the gripping part, and a blind hole is formed in the projection,
A through-hole that intersects the blind hole is drilled, and the base end of a hook rod with a hook formed at the tip is formed in a prism that is inserted into the blind hole, and a screw hole that communicates with the through hole is provided in the prism. The hook rod is removably attached to the rotor with fastening bolts, and the pressing coil spring is elastically supported between the locking edge and the flange edge that protrude into the inner periphery of the tip of the gripping part, and A hacker reverser comprising a stop button for removably engaging a spiral groove provided in the rotor to prevent rotation of the rotor.