JPH0762402B2 - Spacing hardware for column hoop muscles - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a space hanger for a column hoop muscle.

Conventional technology and its problems When assembling a column reinforcing bar, the column reinforcing bar was erected around each corner portion of the right-angled quadrilateral and, if necessary, the column reinforcing bar that was erected at the intermediate portion of each side. It is necessary to fix a large number of hoop muscles vertically in multiple stages at predetermined intervals.

Conventionally, in such a reinforcement work of hoop muscles, first the pitch mark of the hoop muscle is given to the main muscle, then the uppermost hoop muscle is moved upward along the main muscle to match the uppermost pitch mark, At that position, the hoop muscles were bound and fixed to the main muscle by a numbered wire, and in the same manner, the second and subsequent hoop muscles were fixed to the main muscle in order from the upper one. However, in such a conventional method, by binding and fixing the uppermost hoop muscle,
The main bars, especially the corner bars of each corner, are constrained at the bar arrangement position and become a substantially prismatic shape, which causes a large frictional resistance with the main bars during the upward movement of the hoop muscles in the second and subsequent steps, and the upward movement of the hoop muscles. It took a considerable amount of time and labor, and combined with the need for pitch mark formation, the work efficiency was not very good.

SUMMARY OF THE INVENTION The present invention has been made with the object of eliminating the above-mentioned conventional problems and providing an interval-holding metal member that can perform work safely as well as improving work efficiency, and with as little human intervention as possible. Is.

Means for Solving the Problems The present invention is a spacing metal fitting for arranging hoop muscles vertically and in multiple steps at predetermined intervals with respect to a main reinforcement for columns,
A rigid frame-shaped main body composed of two parallel left and right vertical rods and a connecting rod for connecting and fixing the vertical rods is provided. A hook portion is provided for suspending the main body portion so that the main body portion can be tilted and rotated in the front-rear direction, and further, the left and right vertical rod portions project forward and sideways from the vertical rod portion, and the hoop muscle is vertically stepped up and down. The support rod with a multi-stage structure for supporting from below at a predetermined interval,
The present invention relates to a column hoop muscle spacing holding member, which is characterized by being provided respectively.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an example of the spacing metal fitting (A) of the present invention, and the main body of the spacing metal fitting (A) is left and right at intervals smaller than the length of one side of the hoop streak (B) (see FIG. 2). Two parallel vertical rods (1) (1) arranged in parallel, and the vertical rods (1)
Two upper and lower connecting rods (2) and (2) for connecting and fixing (1)
It is assembled into a rigid frame shape from, and the vertical rod (1)
By engaging with the hoop muscle (B) at the hook portions (3) and (3) formed at the upper end of (1), it is possible to suspend the hoop muscle (B) so as to be tiltable and rotatable in the front-rear direction. It is configured. Longitudinal rod part (1) of the spacing hardware (A)
(1) has a multi-stage structure in which the vertical rods (1) and (1) are projected laterally forward and support the hoop muscles (B) vertically from below at multiple intervals at predetermined intervals. For example, four-stage support rods (41) (41), (42) (42), (43) (4
3), (44), (44) are provided. Support rod (41)
It is preferable that the front projection lengths of (44) to (44) are the longest in the uppermost stage and gradually shorten in the lower stages. The spacing metal (A) is usually manufactured by using an iron wire material, but may be manufactured by using a plastic material, wood, or the like.

FIGS. 2 to 7 schematically show one use state of the spacing metal object of the present invention.

Fig. 2 shows the situation before the work is started. The hoop muscles (B) are freely wound around the four corner main reinforcements (C) fixed to the corners of the right-angled quadrilateral, and the hoop reinforcements are vertically stacked. Are piled up. The main bars (C) are arranged not only at the corners of the right-angled quadrilateral but also at the middle of each side, but the middle main bars are omitted in the figure.

At the start of work, without forming pitch marks on the main reinforcement (C), the uppermost hoop reinforcement (B ₁ ) is _first moved upward along the main reinforcement (C) as shown in FIG. After reaching the lower end main bar (D) of the reinforcing bar for beam by upward movement, while maintaining a free state with the main bar (C) for the column, the lower end main bar (D) is appropriately bundled with a numbered wire or the like. It is fixed by applying the means of.

Next, as shown in FIG. 4, on the two opposite sides of the uppermost hoop muscle (B ₁ ) fixed at the uppermost position, the space holding metal (A)
Are engaged with the hook portion (3) at the upper end, and the supporting rod portions (41) to (41) to
(44) A set of four hoop muscles (B) from the second stage onward are placed in order from the upper stage under the tilting operation of the hardware (A) (A), Therefore, each stage of hoop muscle (B)
Are held by the metal parts (A) and (A) in a multi-step manner vertically at predetermined intervals. As is apparent from FIG. 1, since the supporting rods (41) to ((44) are provided at two positions on the right and left for each step with respect to one spacing member (A), the hoop muscle (B ) Is horizontally supported at four positions in each step between the metal parts (A) and (A), and thereafter maintains this horizontal state in a stable and reliable manner.

The above-mentioned interval maintaining work will be described more specifically with reference to FIGS. 8A and 8B. As shown in FIG. 8A, the metal object (A) locked to the uppermost hoop muscle (B ₁ ) is the upper end hook. The parts (3) and (3) are tilted and rotated outward as fulcrums, and by this tilting and rotation, the tips of the support rods (41) to (44) at each stage and the main bar (C) at the opposing position thereof. In between, a passage gap (a ₁ ) for the hoop muscle (B) is formed, and through this passage gap (a ₁ ),
The second hoop muscle (B) is lifted to a predetermined position along the main muscle (C).

Then, as shown in FIG. 8B, the metal (A) is rotated in a direction in which the angle is reduced, so that the hoop streak (B) of the second step is the uppermost support rod (41) (41). ) It is supported at two places on the left and right. In this state, a passing gap (a ₂ ) is formed between the tips of the second and the following supporting rods (42) to (44) and the main bar (C).
Are still left, and in the same manner, the hoop muscles (B) of the third stage and below are supported on the support rods (42) to (44) in order from the upper stage.

In such a hoop muscle spacing maintaining operation, since the tilting and rotating operation of the spacing hardware (A) does not require much force, it can be easily performed by one hand operation, and therefore, the hoop muscle (B) can be operated by the other hand. Since it is possible to carry out the lifting operation of the, it is sufficient to arrange one worker for one interval holding hardware (A),
As shown in FIG. 4, it is possible to easily perform the hoop muscle interval maintaining work by the joint work of two workers.

After finishing the interval maintaining operation of the set of four hoop muscles (B), as shown in FIG. 5, the bottom _two hoop muscles (B ₂ ) of the hoop muscles (B) ... Another pair of spacing metal fittings (A) and (A) are locked to the sides at the hook portions (3) and (3) at the upper end, respectively.
On the supporting rods (41) to (44) of each stage of (A), the following four
This set of hoop muscles (B) ... is loaded in order from the upper one in the same manner as the previous one, and then all the hoop muscles (B) are repeated by repeating the same operation as shown in FIG. By applying the space-holding metal (A), the space-holding metal (A) is vertically held in multiple stages at predetermined intervals.

The main body of the spacing member (A) has two parallel vertical rods (1) (1) and a connecting rod (2) (2) for connecting and fixing the vertical rods (1) (1). ) And is assembled into a rigid frame, it is possible to stably and reliably hold the hoop muscles of each step between the uniform metal fittings (A) and (A). Can be done.

Furthermore, during such a space keeping operation of the hoop muscles (B), the main muscles (C) are completely free from the hoop muscles (B ₁ ) (B) ... Therefore, when each main muscle (C) receives frictional resistance, Since it is in a position where it can freely tilt and rotate in the direction of decreasing,
The upward movement of the hoop muscles (B) along the main muscles (C) can be smoothly and quickly performed. Further, since the metal (A) automatically forms a predetermined interval between the hoop streaks (B) of each step, no troubles such as pitch mark formation are required.

After completing the work to maintain the space between the hoop muscles (B) ...
As shown in the figure, the hoop muscles (B) of each step are fixed to the main muscles (C) by applying a means such as a tie-tie while keeping the space with the metal (B), and the hoop muscles ( The reinforcement work of B) is completed.

As shown in FIG. 7, the interval holding hardware (A) is removed and collected from the hoop muscle after completion of the reinforcement work of the hoop muscle (B), and is prepared for the next operation.

At the time of this removal and recovery, when the interval holding metal (A) is rotated in the direction of the arrow shown in FIG. 8A by using the hooks (3) and (3) at the upper end as fulcrums, the supporting rods (41) of each stage are ) To (44) are disengaged from the lower ends of the hoop muscles (B) of each stage, so that the metal fittings (B) can be removed and collected quickly and reliably.

Hoop streak (B) by tilting and rotating the spacing hardware (A)
In order to make it easier to carry out the interval holding work and the removal / collection operation of the support rod parts (41) to
The front protrusion length of (44) can be gradually shortened from the uppermost stage to the lower stage as shown in FIGS.

The uppermost hoop reinforcement (B ₁ ) is fixed at the uppermost position by applying the following means when there is no cross with the beam reinforcing bar (D).

9 to 11 show a case where the uppermost hoop muscle (B ₁ ) is fixed using a hoop clamp (D ₁ ) and the clamp (D ₁ )
Are attached and fixed by clamping screws (D ₁₂ ) at the respective predetermined heights of the corner main reinforcements (C) at the clamps (D ₁₁ ) at the tip of the clamps, and the uppermost hoop reinforcements ( B ₁ ) is received.

12 to 14 show the case where the uppermost hoop muscle (B ₁ ) is fixed using the hoop holder (D ₂ ), and the hoop holder (D ₂ ) is attached to the column (D ₂₁ ) at the column (D ₂₁ ). _It is inserted and supported in ₃ ) and is fixed at a predetermined height position with a set screw (D ₂₂ ). A pair of left and right columns (D ₃ ) are erected on the outside of the main bar (C), and a pair of left and right receiving parts (D ₂₃ ) (D ₂₃ ) are formed to project forward from the holder (D ₂ ). , Is designed to receive the hoop muscle (B ₁ ).

EFFECTS OF THE INVENTION As described above, according to the spacing metal fixture of the present invention, in addition to eliminating the number of steps for forming pitch marks, the hoop muscles can be easily moved with respect to the main muscles during the hoop muscle spacing maintenance work, and the hoop muscle arrangement work is performed. It can contribute to the improvement of efficiency.

Furthermore, the main body of the spacing metal fixture is constructed in a rigid frame shape, and in addition, the hoop muscles can be supported at two points. Therefore, one worker can handle one spacing metal fixture. You can Therefore, the work of maintaining the space between the hoop muscles can be performed jointly by two people, reducing labor costs without human labor. In addition, the rigid frame shape of the main body allows the hoop muscles to be firmly held and restrained, thus ensuring work safety. Sex can be established.

Furthermore, since the interval holding hardware can be quickly and surely removed and collected by the rotating operation, it can be repeatedly used, and the economical burden can be reduced as compared with the case where it is buried.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of the spacing member according to the present invention, FIG.
Drawing 7 thru / or Drawing 7 is a schematic explanatory view showing one use condition of the interval maintenance metal object of the present invention in order of a process, and Drawing 8 a and b are work explanatory views showing the situation at the time of support work of the hoop muscle by the interval maintenance metal object,
FIG. 9 is a perspective view showing an example of a hoop clamp, FIG. 10 is a front view showing one use situation thereof, FIG. 11 is a plan view of the same, and FIG.
The figure is a perspective view showing an example of a hoop holder, FIG. 13 is a front view showing one use state thereof, and FIG. 14 is an enlarged perspective view of a main part. In the figure, (1) is a vertical rod part, (2) is a connecting rod part, (3)
Is a hook portion, and (41) to (44) are support rod portions.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Application Laid-Open No. 61-207739 (JP, A) Japanese Patent Application No. 62-54737 (Japanese Utility Model Application No. 63-162026) A microfilm (JP, U) of the contents of the specification and drawings attached to the application for Japanese Patent Application No. 53-150344 (No. 55-69556 of Japan).

Claims (2)

[Claims] 1. A spacing metal member for arranging a hoop muscle vertically and in multiple steps at predetermined intervals with respect to a main pillar muscle, and includes two parallel left and right vertical rod portions, and the like. A rigid frame-shaped main body composed of a connecting rod for connecting and fixing the vertical rods is provided, and the main body is hung from an upper end of the main body so that the main body can be tilted and rotated in the front-rear direction. Further, the left and right vertical rods are further provided with hooks for projecting laterally forward from the vertical rods to support the hoop muscle vertically from below from a lower side at predetermined intervals. A support hoop for a column, each of which is provided with a support rod. 2. The front projection length of the support rod in each step is
The spacing hardware according to claim 1, characterized in that the uppermost stage is the longest and gradually becomes shorter toward the lower stage.