JPH0329475Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a reinforcing bar support device used to support foundation reinforcing bars, underground beam reinforcing bars, column reinforcing bars, etc.

[Conventional technology]

Conventionally, as this type of reinforcing bar support device, (1) Jitsukaisho
As published by Publication No. 57-77442,
A square band is fitted and fixed to the upper side of the L-shaped cross-section support leg that has a catch at the lower end, and a horizontal reinforcing bar support rod is fixed to the upper end of the L-shaped vertical rod. A reinforcing bar support device in which a vertical rod is fitted into the inside of the supporting leg so as to be able to rise and fall freely, and a wedge is driven between the band and the vertical rod, (2) as disclosed in Japanese Utility Model Application No. 56-61616. In this case, a female screw member with a fixing bolt screwed thereon is fixed to the upper side of the lower cylindrical body, which has a seat at the lower end, and the lower part of the vertical rod made of reinforcing bar material with many unevenness around it is fixed. , a female screw member is inserted into the lower cylinder and fixed with a fixing bolt, a female screw member with a fixing bolt screwed onto the middle side surface of the upper cylinder is fixed, and a horizontal reinforcing rod supporting rod is attached to the upper end of the upper cylinder. There are known reinforcing bar supports in which an upper cylinder is fitted into the upper part of the vertical rod and fixed with a fixing bolt.

[The problem that the idea attempts to solve]

In the case of the reinforcing bar support device in (1) above, when fixing the vertical bar to the support leg by arranging the reinforcing bar support rod at a predetermined height, hold the vertical bar or the reinforcing bar support rod by hand and hold the wedge. Since I have to do the typing work,
The operation when fixing the vertical rod to the support leg is complicated, and when driving the wedge, the vertical rod may shift downward, causing an error in the level of the reinforcing bar support rod. Furthermore, since the foundation reinforcing bars or underground beam reinforcing bars are heavy, there is a risk that the vertical rods may slide downward and the level of the foundation reinforcing bars or underground beam reinforcing bars may be disturbed.

In addition, in the case of the above-mentioned (2) reinforcing bar support, the operation is complicated as it is necessary to tighten the fixing bolts at two locations, upper and lower. It is composed of three independent members: an upper cylinder with a reinforcing bar bearing rod and a female threaded member, and a vertical rod.
Assembling the reinforcing bar support is complicated.

The object of this invention is to provide a reinforcing bar support that advantageously solves the above-mentioned problems.

[Means to solve the problem]

In order to achieve the above object, in the reinforcing bar support of this invention, the L is provided with a seat 1 at the lower end.
The tips of both arms of a support member 26 with an L-shaped cross section are fixed by welding to the tips of both arms at the upper end of the support leg 2 with a shaped cross section, and the support member 26 and the upper end of the support leg 2 form a vertical rod. An insertion portion 3 is configured, and a female screw member 2 is provided on the bottom side of the groove of the support member 26.
5 is fixed by welding, and a horizontal reinforcing bar support rod 6 is fixed to the upper end of a vertical rod 5 having a circular cross section and provided with a large number of anti-slip irregularities 4 on the periphery. A tightening bolt 7 is inserted through the supporting member 26 and screwed into the female threaded member 25, and the vertical rod 5 is pressed against both arms of the supporting leg 2 by the tightening bolt 7. .

〔Example〕

Next, this invention will be explained in detail using illustrated examples.

1 to 6 show a reinforcing bar support device according to a first embodiment of this invention, in which a through hole 11 for screw rod insertion is provided at the lower end of one support leg 2 made of angle iron and having an L-shaped cross section. A steel plate seat 1 having a diameter is fixed by welding, and a female screw member 25 is fixed by welding to the groove bottom side of a short support member 26 made of angle iron and having an L-shaped cross section. The tips of both arms of the support member 26 are fixed by welding to the inside of the tip of the support member 26, and the support member 26 and the upper end of the support leg 2 constitute a vertical rod insertion portion 3, and the tightening bolt 7 is attached to the support member 26. It is inserted into the central through hole of 26 and screwed onto the female threaded member 25.

The middle part of a horizontal reinforcing bar support rod 6 made of angle iron is fixed by welding to the upper end of a vertical rod 5, which has a large number of anti-slip irregularities 4 around its periphery. The tip of the tightening bolt 7 is pressed against a recess in the unevenness 4 around the vertical rod 5, and the vertical rod 5 is pressed against the inner surface of both arms of the supporting leg.

FIG. 7 shows the usage state of the reinforcing bar support of the first embodiment, in which a base anchor 19 having vertical screw rods 18 at the four corners is buried in concrete 17, and each screw rod 18 is attached to the seat 1. A nut 20 is inserted into the through hole 11 and screwed into each screw rod 18.
The seat 1 is fixed to the concrete 17, and the foundation reinforcing bars or underground beam reinforcing bars 2 consisting of the upper reinforcing bars 21, the lower reinforcing bars 22, and the stirrup joints 23 are fixed.
The upper reinforcing bar 21 at 4 is mounted on the reinforcing bar support rod 6.

8 to 11 show a reinforcing bar support device according to a second embodiment of this invention, in which two support legs 2 of L-shaped cross section made of angle iron are arranged parallel to each other with an interval between them. The upper end of the support leg 2 is provided with a vertical rod insertion part equipped with the aforementioned tightening bolt 7,
The two vertical rods 5, which have many anti-slip irregularities around their periphery, are arranged parallel to the vertical rod insertion portions at the upper ends of the two supporting legs 2 at the same interval, and are horizontal reinforcing bars made of angle iron. The upper end of each vertical rod 5 is fixed to the rod 6 by welding, and each vertical rod 5 is inserted into the vertical rod insertion part of the upper end of each support leg 2 so as to be able to rise and lower, and is fixed with a tightening bolt 7, Furthermore, a horizontal angle-shaped steel catch seat 1 extending in a direction perpendicular to the reinforcing bar support rod 6 is fixed to the lower end of each support leg 2 by welding.

FIG. 14 shows the usage state of the reinforcing bar support of the second embodiment, in which each catch 1 is fixed to the waste concrete 17 by a common base anchor 19 and nut 20, but the other configuration is This is the same as the usage example of the reinforcing bar support in the first embodiment.

When implementing this invention, the vertical rods 5 are, for example, known deformed reinforcing bars cut into appropriate lengths. Furthermore, the intermediate portion of a temporary support rod for use as a temporary stand for reinforcing bars may be fixed to the intermediate portion of the support leg 2.

As a means for fixing the seat 1, for example, an anchor hole is drilled in the lower concrete such as waste concrete or foundation concrete, and a locking part of an expandable anchor bolt is inserted into the anchor hole. Alternatively, the seat 1 may be expanded and fixed using the anchor bolts, and the seat 1 may be tightened and fixed to the lower concrete.

[Effect of idea]

This idea is structured as described above, so
This produces the effects described below.

Support member 2 with catch seat 1 and female thread member 25
The reinforcing bar support is composed of two independent members consisting of the supporting leg 2 with the reinforcing bar 6 attached and the vertical bar 5 with the reinforcing bar supporting rod 6 attached, and there is only one tightening bolt 7, so the reinforcing bar supporting The vertical rod 5, which has a circular cross section and which is equipped with a large number of anti-slip irregularities 4 around the support leg 2, can be easily and quickly assembled to a predetermined height.
Even if the vertical rod 5 has a circular cross section, it can be supported in a stable state, and furthermore, the engagement between the concave part of the unevenness 4 in the vertical rod 5 and the tightening bolt 7 is ensured. As a result, it is possible to reliably prevent the vertical rod 5 from slipping down, and therefore,
The reinforcing bar support rod 6 can be reliably held at a predetermined level.

[Brief explanation of drawings]

1 to 6 show a reinforcing bar support according to a first embodiment of this invention, in which FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a FIG. 4 is an enlarged sectional view taken along line A, FIG. 4 is an enlarged sectional view taken along line B-B of FIG. 1, FIG. 5 is a partially cutaway front view of the reinforcing bar support member with vertical rods, and FIG. Figure 7 is the first
FIG. 3 is a longitudinal sectional front view showing the reinforcing bar support of the example in use. Figures 8 to 11 are the second part of this invention.
8 shows a front view, FIG. 9 shows a side view, and FIG. 10 shows a plan view of the reinforcing bar support of the embodiment.
FIG. 11 is an enlarged sectional view taken along the line CC in FIG. 8.
FIG. 12 is a longitudinal sectional front view showing the reinforcing bar support of the second embodiment in use. In the figure, 1 is a catch seat, 2 is a support leg, 3 is a vertical rod insertion part, 4 is a non-slip unevenness, 5 is a vertical rod, 6 is a reinforcing bar support rod, 7 is a tightening bolt, 24 is a foundation reinforcement or underground The beam reinforcing bars, 25 are internally threaded members, and 26 are supporting members.

Claims (1)

[Scope of utility model registration request] L-shaped cross-section support leg 2 with a catch 1 at the lower end
The tips of both arms of a support member 26 having an L-shaped cross section are fixed to the tips of both arms at the upper end by welding, and the support member 26 and the upper end of the support leg 2 constitute a vertical rod insertion portion 3. A female screw member 25 is fixed by welding to the groove bottom side of the support member 26, and a horizontal reinforcing bar support rod 6 is attached to the upper end of a vertical rod 5 having a circular cross section and having a large number of anti-slip irregularities 4 on the periphery. The vertical rod 5 is inserted into the vertical rod insertion part 3 so as to be able to move up and down, and the tightening bolt 7 is attached to the support member 2.
6 and is screwed into the female screw member 25,
A reinforcing bar support in which the vertical rod 5 is pressed against both arms of the supporting leg 2 by the tightening bolt 7.