JPS5922825Y2 - Spacer for both vertical and vertical reinforcements - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spacer that can be used for both upper and lower cylinders, and particularly to a spacer that is extremely useful when supporting upper and lower mesh-like reinforcements in two stages.

Conventionally, when arranging mesh-like lower and upper reinforcement in two layers, upper and lower, two types of spacers with different heights are used, one for the lower reinforcement and the other for the upper reinforcement, and these spacers are used to connect the -L lower reinforcement. A construction method in which spacers are supported individually has been adopted, but this conventional construction method requires a huge number of spacers, which not only imposes a heavy economic burden but also requires complicated work when arranging reinforcements. there were.

In order to solve these problems, attempts have been made to develop spacers that can be used for the mesh-like upper and lower muscles.
There are advantages and disadvantages in terms of ease of construction, stability of support, ease of manufacture, etc., and no one has yet been proposed that can satisfy all of these requirements.

The present invention has been developed in view of the current situation, and the present invention will be explained below based on the accompanying drawings.

FIG. 1 shows an example of an embodiment of the dual-purpose spacer of the present invention.

The dual-purpose spacer of the present invention shown in FIG.
Two parallel vertical rod portions 2, 2 extending in one direction from the outer ends of the lower vertical rod portions 2, 2, and two horizontally extending inward from the upper ends of the lower vertical rod portions 2, 2. Parallel first support beam parts 3, 3, two parallel upper vertical rod parts 4, 4 extending upward from the inner ends of the support beam parts 3. The first and second support beam parts 3, 3 and 5 are composed of the second support beam part 5 formed across the -L end of the upper F line a.

It is curved downward for the purpose of stabilizing the support beam in b.

The spacer of the present invention having such a structure can be easily manufactured by bending a single wire.

In order to increase the strength of the dual-purpose spacer of the present invention, a reinforcing rod 6 may be welded and fixed across between the horizontal leg rod portion 1 and the first support portion 3, for example, as shown in Fig. 2. .

When constructing mesh-like -L reinforcement using the dual-purpose spacer of the present invention, first, the mesh-like lower reinforcement a is placed at a predetermined position on the formwork (not shown), and then The horizontal leg rod portions 1, 1 are arranged in the vicinity of the intersection a' of the spacer of the present invention so as to just straddle the two side members a1 of the lower reinforcement a.

This state is shown in FIG.

It should be noted that the spacer of the present invention does not need to be placed at all of the intersection points of the submeshoid muscles a, but may be placed at some of the intersection points selected from all of them.

Next, while lifting the lower reinforcement a slightly upward using an appropriate means, insert the spacers of the present invention placed near the intersection point a' below the lower reinforcement a, and place the lower reinforcement a in the first receiving section 3.3.
By supporting the lower member a2, the lower reinforcement a can be supported at a predetermined height, as shown in FIG.

Next, the upper reinforcement can be supported at a predetermined height by supporting the mesh-like upper reinforcement on the second support part 5 of the spacer of the present invention in the lower member b2.

This state is shown in FIG.

In the present invention, each intersection of the mesh-like vertical striations a and l) may be welded and fixed in advance at the factory, or may be tied and fixed using wires or the like at the construction site.

In this way, the spacer of the present invention can be used for mesh-like upper and lower reinforcements, and the reinforcement construction is extremely simple and easy as described above.

Since the spacer has two parallel leg rods 1, 1, each spacer can individually maintain an extremely stable and secure stationary state.

In addition, when supporting reinforcing bars, the higher the reinforcing bar support point is, the more unstable the installation posture of the spacer becomes. Therefore, in the case of a dual-purpose spacer, movement of the upper reinforcing bar on the spacer is likely to cause the spacer to fall. However, the spacer of the present invention overcomes this difficulty.

That is, in the spacer of the present invention, by supporting the lower reinforcement at the two points of the first supporting parts 3, 3, the upper reinforcement is supported while the push-down blade from the lower reinforcement is applied to these two points. The tilting of the spacer due to the movement of the upper reinforcement on the spacer is effectively prevented, and an extremely stable and reliable supporting state can be ensured as a whole, making the work easier and faster.

In addition, due to stable and reliable support, accurate reinforcing bar support height can be easily obtained, and therefore, the so-called overhang height from the reinforcing bar to the top surface of the poured concrete, which is the standard during construction, can be easily and accurately obtained. This is extremely advantageous.

Furthermore, the stabilization of the installation posture of the spacer due to the 32-point support of the first support section 3 is particularly effective in the direction perpendicular to the longitudinal direction of the leg rod sections 1, 1, so the position of the second support section 5 is The width between the leg parts 1 and 1 can be made narrower than the height, which not only saves material, but also reduces the span of the second support part 5 and bends it. As a result of the increased strength, the diameter of the wire can be made smaller, further saving material.

Furthermore, the spacer of the present invention has an extremely simple structure and can be easily manufactured by, for example, bending a single wire, and can be provided at a low cost.

Furthermore, since the spacer of the present invention is a dual-purpose type, compared to the case where two types of spacers with different heights are used, the number of spacers used per construction can be reduced by approximately half, and construction costs can be reduced. There are also advantages.

As described above, according to the present invention, it is possible to stably and precisely support two layers of reinforcing bars, to facilitate and speed up the construction work, and to provide an inexpensive spacer for both upper and lower layers. be able to.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the implementation of the present invention, Fig. 2 is a perspective view showing an example of the reinforcing means of the invention, and Figs.
FIG. 2 is a perspective view illustrating the use of the product of the present invention shown in the figure in the order of construction steps. In the figure, 1 is a horizontal leg rod, 2 is a lower wheel rod, 3 is a first holder, 4 is an upper vertical rod, and 5 is a second holder.

Claims (1)

[Scope of utility model registration request] two parallel leg rods 1.1 extending in the horizontal direction;
The formwork and F extend upward from the outer ends of the leg rods 1, 1.
Two parallel lower vertical rod portions 2, 2 and a lower rod extending laterally inward from the upper ends of the lower vertical rod portions 2, 2 for maintaining the upper-F distance with the muscle a. The vertical interval between the two parallel first support sections 3, 3 for supporting the beam a, and the lower reinforcement a and the upper reinforcement that extend upward from the inner ends of the support beam sections 3, 3. In order to support the upper reinforcement, which is formed across two parallel upper vertical rod parts 4, 4 and one end of these upper vertical rod parts 4, 4, for holding the A spacer that serves both as an upper and lower cylinder, consisting of a second support portion 5.