JPH0747543Y2 - Rebar hook - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a reinforcing bar hook which is attached to a vertical bar of a concrete structure when the reinforcing bar is assembled to support the horizontal bar.

(Prior Art) In recent years, large-scale concrete structures such as 70-story buildings and nuclear power plants have increased, and large-diameter reinforcing bars have been used for them.

By the way, conventionally, when assembling a large-diameter reinforcing bar of this kind, it is general to assemble the frame with the shape steel and then construct the reinforcing bar in order to support the weight of the reinforcing bar.

(Problems to be solved by the invention) In the conventional assembling of the large-diameter reinforcing bar, there is a problem in that it takes time and material cost to assemble the frame with the shape steel, and is wasteful both in terms of construction period and economically. is there.

(Means for Solving the Problems) In order to solve the above problems, the present invention is directed toward the rear of the hanging piece (2) in which the tip hook (1) made of a wire and hooking the lateral streaks (c) goes forward. The upper and lower sandwiching pieces (3) and (4) formed by bending the wire rod into the groove (5) of the vertical stripe (b) in a substantially semi-circular shape are directed in the opposite directions to the left and right. ), And arrange them concentrically with an appropriate interval larger than the diameter of), and hang the hanging piece (2) at right angles to the cutting line direction of each semicircle of the upper and lower sandwiched pieces (3) and (4). The front reinforcing pieces (3) and (4) are fixed to (2) to form the reinforcing bar hook (a).

(Operation) Reinforcing bar hook (a) is laid sideways, and its sandwiched pieces (3), (4)
The space is fitted to a required portion of the vertical stripe (b).

Then, rotate the reinforcing bar hook (a) 90 degrees to make it vertical,
The upper gripping piece (3) of the reinforcing bar hook (a) is the vertical bar (b).
The lower flank piece (4) is fitted in one half of the groove (5) of the groove (5) in the other half of the groove (5) of the vertical bar (b) to attach the reinforcing bar to the vertical bar (b). (A) is attached.

Then, the horizontal reinforcing bars (c) are hung on the hooks (1) of the adjacent reinforcing bar hooks (a) to assemble the reinforcing bars.

(Embodiment) The structure of one embodiment of the present invention shown in the drawings will be described. (A) shows a reinforcing bar hook, and (2) bends the lower part of the wire forward to bend the tip hook (1). The hanging piece provided,
(3) and (4) are upper and lower sandwiching pieces arranged behind the hanging piece (2). The wire rod is bent in an arc shape slightly longer than a semicircle, and both free ends are bent obliquely outward. It consists of (6). Then, the upper and lower gripping pieces (3) and (4) are directed in the opposite directions to the left and right, and are arranged concentrically with an appropriate interval larger than the diameter of the vertical bar (b) of the threaded steel rod, and are arranged above them. The strip (3) is directed obliquely rearward and upward so as to fit into one half of the thread groove (5) of the vertical bar (b), and the lower gripping piece (4) is screwed on the vertical bar (b). The hanging piece (2) is vertically slanted downward so as to fit into the other half of the groove (5), and the hanging pieces (3), (4)
At a right angle to the direction of the cut line of each semicircle, the front piece of the upper gripping piece (3) is attached to the upper end of the hanging piece (2), and the lower gripping piece (4) is attached to the middle part of the hanging piece (2). The reinforcing pieces (a) are constructed by fixing the front pieces respectively, and by fixing the back pieces (7) made of a wire rod to both sides by projecting them to the lower rear surface of the hanging pieces (2).

(B) is a vertical bar of the threaded steel rod, (5) is a thread groove of the vertical bar (b), and (c) is a horizontal bar of the threaded steel bar.

Next, the operation will be described. After installing a number of vertical bars (b), as shown in FIG. 5, the reinforcing bar hook (a) is laid down and the appropriate vertical bars (b) are placed between the sandwiched pieces (3) and (4). Fit it in the required place.

Then, the rebar hook (a) is rotated 90 ° and made vertical as shown in FIG. 6, so that the bent pieces (3) and (4) of the rebar hook (a) ( 6) and 6), the upper gripping piece (3) is attached to one half of the threaded groove (5) of the vertical streak (b) and the lower gripping piece (4) is attached to the vertical streak (b). ) Is fitted into the other half of the threaded groove (5), and the contact piece (7) hits the threaded groove (5) of the vertical bar (b) to rebar the vertical bar (b). A hook (a) is attached.

After that, the reinforcing bars are assembled on the hooks (1) of the adjacent reinforcing bar hooks (a) by hanging the horizontal bars (c) as shown in FIG.

When the vertical streak (b) and the horizontal streak (c) have a small diameter,
It is not always necessary to provide the contact piece (7) of the reinforcing bar hanging tool (a). Also, even if the hanging piece (2) is shortened accordingly, the same operation as described above is performed.

(Effect of the Invention) The reinforcing bar hanger of the present invention has the following remarkable effects.

(1) When the reinforcing bar hook is laid horizontally and the upper and lower clamp pieces are fitted to the vertical stripes, the reinforcing bar hook is turned 90 ° to make it vertical, and the upper and lower clamp pieces are vertically aligned. Since the reinforcing bar hook is attached to the vertical bar by fitting into the groove of the bar, the reinforcing bar hook can be attached to any position of the vertical bar from the front by one tap, and the assembling of the reinforcing bar is efficient.

(2) Since the upper and lower claw pieces of the reinforcing bar hook grip the vertical streaks by the spring effect of the wire rod, the upper and lower claw pieces grip the vertical bar from opposite directions, so that The attachment to the vertical bar is firm and safe.

(3) Since the wire rod is used as the material for the reinforcing bar hook, the concrete around the reinforcing bar hook is very good when placing concrete.

(4) Since a gap is formed at the intersection of the vertical streak and the horizontal streak, the circumference of the concrete at the intersection is also good.

(5) No skilled worker is required, and anyone can easily and accurately assemble the reinforcing bar.

(6) Since the rebar itself can be self-supporting by utilizing the rigidity of the large diameter rebar itself, there is no need to assemble the frame with the shape steel as in the conventional method, and the labor and material cost can be saved and the construction period can be improved. It is also economically beneficial.

(7) It has a simple structure and can be manufactured easily and inexpensively.

[Brief description of drawings]

1 is a side view of a reinforcing bar hook according to an embodiment of the present invention, FIG. 2 is a front view, FIG. 3 is a plan view, FIG. 4 is a perspective view, and FIG. 5 is a vertical view of the reinforcing bar hook. FIG. 6 is a side view of an essential part in a state where the reinforcing bar hooking device is attached to the vertical reinforcing bar to assemble the reinforcing bar, and FIG. 7 is a plan view. (A) ... Reinforcing bar hook, (b) ... Vertical streak, (c) ... Horizontal streak,
(1) ... Tip hook, (2) ... Hanging piece, (3) ... Upper picking piece, (4) ... Lower picking piece, (5) ... Groove,

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shinichiro Kai Kai 4-12-20 Tenjin, Chuo-ku, Fukuoka, Fukuoka Prefecture Takenaka Corporation Kyushu Branch (72) Inventor Osamu Odawara 4-Sasaya Odama, Yawata, Kyoto Prefecture 2-D-19-703

Claims (1)

[Scope of utility model registration request] 1. An upper and lower sandwiching piece formed by bending a wire rod into a groove of a vertical line and bending the wire rod into a substantially semicircular shape is provided behind a hooking piece which is made of a wire rod and has a front end hook directed forward. To the opposite direction to the left and right, concentrically arranged with an appropriate interval larger than the diameter of the vertical bar, and place the hanging piece at right angles to the cutting line direction of each semicircle of the upper and lower sandwiched pieces to the hanging piece. Reinforcing bar hooks formed by fixing the front pieces of the upper and lower clamp pieces.