JP2002081172A - Binding tool for cross section of reinforcing bar and flat bar - Google Patents

Abstract

(57) [Summary] [Object] To provide a binding tool that can quickly and stably and firmly tie a crossing portion between a reinforcing bar and a flat bar in a one-touch operation manner and integrate it. A detachable one end of one spring metal wire is used as a short first latch arm (15) from the front with respect to a flat bar (13), and extends in a vertical direction substantially parallel to a reinforcing bar (11). And rebars (1
The winding arch (17) on the back of 1) and the long second latch arm (18) from the front on the flat bar (13) are continuously bent and formed, and the other end of the spring metal wire is cut off. The second latch arm (1
From the upper end of 8), the hook (20) wound around the reinforcing bar (11) was continuously bent out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for binding a reinforcing bar and a flat bar at an intersection.

[0002]

2. Description of the Related Art In the foundation work of a base-isolated building or the like, a concrete reinforced basket is hung down inside a deep buried hole dug in the ground by a crane or the like, and the concrete pile is cast on site. However, in order to prevent the above-mentioned undesired deformation at the time of hanging, not only the main bars (longitudinal bars) and the hoop bars (transverse bars) but also a circular ring shape similar to the hoop bars is used for the reinforcing bars. The flat bar (steel plate) thus obtained is usually assembled in a crossed state substantially orthogonal to the main bar.

[0003]

However, at present, there is no binding tool suitable for the intersection between the flat bar and the main bar, and a binding wire made of a non-springless iron wire known for binding the intersection of rebars. In the case of the so-called line, the flat bar may slide down due to insufficient binding strength. Therefore, the rebar assembler must weld the intersection of the main bar and the flat bar at the site. , And have been forced to work hard.

[0004] In addition, welding the above-mentioned crossing portion tends to be unacceptable because the high heat reduces the strength originally provided by the main reinforcement.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and as a binding tool suitable for an intersection between the main bar (reinforcing bar) and the flat bar, a single piano wire is used in its configuration. And a metal wire exhibiting a spring property, and one end of the spring metal wire is used as a first latch arm from the front with respect to the flat bar plate surface, and is fixed to be shorter than the band width of the flat bar. It extends in the vertical direction almost parallel to the reinforcing bar by the length,

[0006] From the lower end of the first latch arm, the winding arch to the back of the reinforcing bar is made substantially U-shaped when viewed from the bottom and flat, and once bent about 90 degrees in the transverse direction of the reinforcing bar.

[0007] The second latch arm from the front with respect to the plate surface of the flat bar is further bent and extended by about 90 degrees from the front end of the winding arch to the upper surface in parallel with the first latch arm. hand,

The winding hook extending from the extended front end of the second latch arm longer than the flat bar to the back of the reinforcing bar is positioned at the other end of the spring metal wire. By bending about 90 degrees in the transverse direction of the rebar like

The short first latch arm and the long second latch arm
A pair of left and right with the latch arm is latched from the front to the plate surface of the flat bar, and the winding arch is wound around the reinforcing bar from behind, thereby receiving the lower cut edge of the flat bar. ,

A second latch arm extending upward substantially parallel to the rebar is provided with a latching position with respect to a corner of the flat bar at the corner between the plate surface and the upper cut edge as a fulcrum of fulcrum movement. At the same time as forcibly pushing down the reinforcing bar in the backward direction, simultaneously pushing and opening it in the lateral direction to escape from the reinforcing bar and releasing the operating hand, it has been determined that the winding hook is hooked behind the reinforcing bar. It is a feature.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the specific structure of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an overall assembled state of a reinforcing steel cage (C) for reinforcing a concrete panel. The (vertical streak) (11) has a thinner hoop streak (horizontal streak) (12) crossing the circumscribed state, and the flat bar (13) also crosses the inscribed state.

As described at the beginning, such a reinforced cage (C) is inserted into an embedding hole (14) dug in the ground (G) serving as a foundation for a base-isolated building or the like, and a crane or the like is provided from above. It will be suspended and buried.

The tying tool (A) of the present invention comprises a main reinforcing bar (11) (hereinafter simply referred to as a reinforcing bar) of the reinforcing bar cage (C).
As one for binding a crossing portion that is substantially orthogonal to the flat bar (13), it is formed by bending a piano wire or another single metal wire exhibiting spring properties as follows.

That is, in FIGS. 2 to 11 showing the whole shape and use state of the binding tool (A), (15) is a flat bar (13) which forms one end of a spring metal wire.
And extends in a vertical direction substantially parallel to the reinforcing bar (11), but has a length (L1) shorter than the band width (W) of the flat bar (13). Moreover, the flat bar (1) extends from the middle of the fixed length (L1).
A pressing claw (16) capable of making point contact with the plate surface (13a) of (3) from the front is protruded in a mountain shape.

(17) The first latch arm (1)
Continuing from the root (lower end) of 5), rebar (11)
In the direction transverse to the back of the reinforcing bar (11) once bent about 90 degrees (α), and can be fitted to the arc outer peripheral surface of the reinforcing bar (11). It is bent in a U-shape.

The winding arch (17) receives the lower opening (13b) of the flat bar (13) and is wound around the reinforcing bar (11). (R) is the winding arch (1)
7) shows the bending diameter, which is a size substantially corresponding to the thickness of the reinforcing bar (11).

Further, (18) continues from the substantially U-shaped bent front end of the winding arch (17), and then in a direction (upward) facing and parallel to the first latch arm (15), and once more. A second latch arm to the flat bar (13) bent by a degree (β), which extends considerably longer than the band width (W) of the flat bar (13). (L2) indicates a fixed length of the second latch arm (18), and is preferably about 2.5 to 2.5 to less than the band width (W) of the flat bar (13).
It is dimensioned 3.5 times.

Moreover, the second latch arm (18)
From the vicinity of the base (lower end) of the flat bar (13) facing the plate surface (13a) of the flat bar (13), a pressing claw (19) arranged in parallel with the pressing claw (16) of the first latch arm (15).
However, it also protrudes as a mountain shape that can make point contact with the plate surface (13a) of the flat bar (13) from the front.

That is, the short first latch arms (1) facing each other and juxtaposed to each other via the winding arch (17) having a bending diameter (R) substantially corresponding to the thickness of the reinforcing bar (11).
The left and right pair of 5) and the long second latch arm (18) are overlapped from the front on the plate surface (13a) of the flat bar (13) under the restraining state sandwiching the reinforcing bar (11). In particular, the first and second latching arms (15) and (18) of the first and second latching arms (15) and (18) can be stopped.
Combined with the pressing force of (19), the locking is maintained so that the rebar (11) and the flat bar (13) are firmly prevented from swaying.

The direction (20) is further continued from the extended end (upper end) of the second latch arm (18), and is substantially the same as the winding arch (17), in the direction crossing the back of the reinforcing bar (11). A hook hooked around the reinforcing bar (11) bent by about 90 degrees (γ), and the reinforcing bar (11)
Are bent into a substantially U-shaped, V-shaped or L-shaped as viewed from a flat surface or a bottom surface which can be fitted to the outer peripheral surface of the circular arc.

The hook (2) wound around the reinforcing bar (11)
0) forms the other end of the spring metal wire, and a pair of upper and lower winding arches (17) separated from each other while maintaining a predetermined length (L2) of the second latch arm (18). The circular arc outer peripheral surface of the reinforcing bar (11) is held from behind behind in an overlapping manner.

When the crossing portion between the reinforcing bar (11) and the flat bar (13) is to be bound using the binding tool (A) of the present invention, first, one end of the resilient metal wire is cut off. Short first latch arm forming part (15)
A pair of left and right second long latch arms (18) facing and parallel to this are temporarily latched from the front to the flat bar (13) as shown in FIG. Connect the arch (17) with the reinforcing bar (1
The wrapped arch (17) traverses behind the 1) in a wrapped state, and the lower cut edge (13b) of the flat bar (13) is received by the wrapped arch (17).

The reinforcing bar (11) and the flat bar (13)
In the state where the tying tool (A) is temporarily fixed to the crossing portion of the reinforcing bar (1), the long second latch arm (18) is connected to the reinforcing bar (1).
A hook (20) extending upward substantially in parallel with (1) but forming the other end of the springy metal wire.
Is still in a free state floating forward from the rebar (11).

Then, the second latch arm (1)
While grasping 8) as an operation lever, it is forcibly pushed down in the direction behind the reinforcing bar (11) as indicated by the chain line in FIG. 12 and FIG. ) Is once pushed in the lateral direction to escape from the reinforcing bar (11) to open the hook (20) behind the reinforcing bar (11) and then release the operating hand.

Then, as shown in FIGS. 7 to 11, the left and right pairs of the first and second latching arms (15) and (18) are joined together from the front to the plate surface (13a) of the flat bar (13) from the front. The winding arch (17) is hung from behind onto the arc outer peripheral surface of the reinforcing bar (11), and the reinforcing bar (11) is provided.
And the flat bar (13) is locked in a tightly bound state, while the second latch arm (1) is locked.
8) Wrapping hook (20) located at the extension tip of
However, the result is that the rebar (11) is wrapped around the arc outer peripheral surface of the rebar in a resilient holding state from behind.

In the binding operation process, the middle part of the long second latch arm (18), which is forcibly pushed down in the rear direction of the reinforcing bar (11), is connected to the plate surface (13a) of the flat bar (13) and the upper edge. From the front to the corner with the surface (13c), and the latched position is set as a fulcrum (P
As described in 1), the second hook arm (18) is bent and deformed so as to perform a pivoting motion, and resists the spring force of the springy metal wire.
0) is hooked to the reinforcing bar (11) from the opposite rear direction.

The flat bar (13) is connected to the second bar.
The pivoting support point (P1) of the latch arm (18), the fixing point (P2) of the second latch arm (18) in contact with the holding claw (19), and the first latch arm (15).
Total 3 with the fixing point (P3) that contacts the presser claw (16)
In that respect, the first and second latch arms (15) (1)
8) results in being pressed and fixed.

Therefore, the flat bar (13) and the reinforcing bar (11) are combined with the fact that the lower cut edge (13b) of the flat bar (13) is received by the winding arch (17). Can be bound in a stable and strong binding state, and there is no danger that the rebar cage (C) will be distorted, twisted, or otherwise deformed due to relative swinging motion between the two.

In particular, the flat bar (13) has the first and second latch arms (15) (1)
8), the bundling tool (A) of the present invention can be used for various kinds of flat bars (13) whose band width (W) varies widely. In addition, according to the thickness (T) of the flat bar (13) and the thickness of the reinforcing bar (11), the winding arch (17) is used.
Of course, the bending diameter (R) can be easily changed.

The binding strength of the binding tool (A) according to the present invention is appropriately determined in consideration of the correlation between the length (L2) of the second latch arm (18) and the thickness of the spring metal wire. The second latch arm (1
8) As described above, the length (L2) is about 2.5 to 3.5 of the band width (W) of the flat bar (13).
It is preferable to double the size, and it is desirable to set the thickness of the resilient metal wire to be smaller than the interval pitch between the horizontal bars (11a) in the reinforcing bar (11).

The binding tool (A) of the present invention can be connected to the reinforcing bar (11) by forcibly releasing the winding hook (20) from the reinforcing bar (11) by using a suitable tool. It is also possible to remove from the intersection of the flat bar (13).

[0032]

As described above, according to the present invention, the reinforcing steel (11) is used.
And a flat bar (13) as a binding device (A) composed of a single piano wire or another metal wire exhibiting spring properties, and one end of which is separated from the spring metal wire by a flat bar (13). Length (L1) shorter than the band width (W) of the flat bar (13) as the first latch arm (15) from the front with respect to the plate surface (13a).
Only in the vertical direction almost parallel to the rebar (11),

From the lower end of the first latch arm (15) to the back of the reinforcing bar (11), the winding arch (17) is substantially U-shaped when viewed from the bottom and flat, and the transverse direction of the reinforcing bar (11). Once bent about 90 degrees (α),

The plate surface (13) of the flat bar (13) continues from the bent end of the winding arch (17).
a second latch arm (18) from the front with respect to a)
Is further bent and extended upward by about 90 degrees (β) once more so as to face and be parallel to the first latch arm (15),

From the extended end portion of the second latch arm (18), which is longer than the band width (W) of the flat bar (13), the winding hook (20) to the back of the reinforcing bar (11) is continuously connected to the spring metal. By bending about 90 degrees (γ) in the transverse direction of the reinforcing bar (11) in the same manner as the above-mentioned winding arch (17) as being located at the other end of the wire,

A pair of left and right short first latch arms (15) and a long second latch arm (18) are latched from the front to the plate surface (13a) of the flat bar (13). The flat bar (1) is wound around the rebar (11) by winding the arch (17) from behind.
3) Under the condition of catching the lower front end (13b),

The second latch arm (18), which extends upward substantially in parallel with the reinforcing bar (11), is connected to the plate surface (13a) of the flat bar (13) and the upper cut edge (13c). The forcible position (P1) of the anchoring point with respect to the corner is forcedly pushed down in the rear direction of the reinforcing bar (11), and at the same time, pushed and opened in the lateral direction to escape from the reinforcing bar (11). Since it is defined that the winding hook (20) is hooked behind the rebar (11) by releasing the operating hand, the rebar (11)
The crossing portion between the flat bar (13) and the flat bar (13) can be efficiently tied in a so-called one-touch operation type. Nevertheless, there is an effect that a stable and strong tying state can always be obtained. There is no possibility that the strength of 11) is reduced.

In particular, if the configuration of claim 2 is adopted,
The corner of the flat surface (13a) of the flat bar (13) between the plate surface (13a) and the upper cut end surface (13c) is the second latch arm (1).
8) In addition to being pressed at the support point (P1) of the roller movement, the plate surface (13a) of the flat bar (13) is also pressed by the pressing claws (1) of the first and second latch arms (15) and (18).
6) Since it is pressed down at the two fixing points (P2) and (P3) according to (19), it is bound in a strong binding state that does not swing against the reinforcing bar (11), and the flat bar (13) Even if the band width (W) changes widely, the binding tool (A) of the present invention can be used for various flat bars (13).

[Brief description of the drawings]

FIG. 1 is an overall schematic front view showing an assembled state of a reinforcing rod for concrete pile reinforcement.

FIG. 2 is a perspective view of the binding tool according to the present invention.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a plan view of FIG. 3;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 3;

FIG. 7 is a perspective view showing a use state of the binding tool according to the present invention.

FIG. 8 is a front view of FIG. 7;

FIG. 9 is a rear view of FIG. 8;

FIG. 10 is a side view of FIG. 8;

FIG. 11 is an enlarged sectional view taken along line 11-11 of FIG.

FIG. 12 is a side view showing a temporary fixing state of the binding tool at a crossing portion between the reinforcing bar and the flat bar.

FIG. 13 is a front view showing an operation process of a second latch arm in the binding tool.

[Explanation of symbols]

 (11) ・ Main bar (rebar) (12) ・ Hoop bar (transverse bar) (13) ・ Flat bar (13a) ・ Board surface (13b) ・ Lower edge (13c) ・ Upper edge (14) ・ Inset hole (15) First latching arm (16) Clamping claw (17) Rolling arch (18) Second latching arm (19) Clamping claw (20) Rolling hook (A) Bundling tool (C) · Reinforced basket (G) · Ground (R) · Bending diameter of the winding arch (W) · Flat bar band width (L1) · Length of the first latch arm (L2) · Second latch Arm length (α), bending angle (β), bending angle (γ), bending angle (P1), fulcrum (P2) (P3), fixed point

Claims (2)

[Claims] 1. A piano wire or another metal wire exhibiting a spring property, wherein one end of the spring metal wire is separated from a first surface of the flat bar (13) from the front with respect to the plate surface (13a). The latch arm (15) is extended in a vertical direction substantially parallel to the reinforcing bar (11) by a fixed length (L1) shorter than the band width (W) of the flat bar (13). From the lower end of the retaining arm (15), the winding arch (17) to the back of the reinforcing bar (11) is made substantially U-shaped when viewed flat and bottom, and once about 90 degrees in the transverse direction of the reinforcing bar (11). α), and the second latch arm (18) from the front with respect to the plate surface (13a) of the flat bar (13) continues from the bent tip of the winding arch (17). 15) Once again, it is bent and extended upward by about 90 degrees (β), and the second is longer than the band width (W) of the flat bar (13).
The hook (20) extending from the extended end of the latch arm (18) to the back of the reinforcing bar (11) is located at the other end of the spring metal wire in the same manner as the above-mentioned winding arch (17). By bending about 90 degrees (γ) in the transverse direction of the reinforcing bar (11), the left and right pair of the short first latch arm (15) and the long second latch arm (18) are flat bar (1).
3) The front arch (17) is hung from the front on the plate surface (13a), and the wrapping arch (17) is wrapped around the reinforcing bar (11) from behind, thereby lowering the lower cut edge (13b) of the flat bar (13). Under the received state, the second latch arm (18), which extends upward substantially in parallel with the reinforcing bar (11), is connected to the plate surface (13a) of the flat bar (13) and the upper edge. Face (13
c) is set as a pivot point (P1) with respect to the corner with respect to the corner, and is forcibly pushed down in the rear direction of the reinforcing bar (11), and is simultaneously pushed and opened in the lateral direction to escape from the reinforcing bar (11). A tool for binding a crossing portion between a reinforcing bar and a flat bar, wherein the operating hand is released to lock the winding hook (20) behind the reinforcing bar (11). 2. A long, second latch while protruding a presser claw (16) that can make point contact with the plate surface (13a) of the flat bar (13) from an intermediate portion of the short first latch arm (15). From the vicinity of the lower end of the arm (18) facing the plate surface (13a) of the flat bar (13), a pressing claw (19) that can make point contact with the plate surface (13a) of the flat bar (13) is protruded. Claim 1 characterized by the following:
A tool for tying the intersection of the reinforcing bar and the flat bar described in the above.