JPH0724494Y2 - Combination of spacer and spring catcher - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a combination of a spacer and a spring catcher, and more specifically, a block-shaped spacer for reinforced concrete construction (hereinafter referred to as a spacer for supporting the reinforcement in a levitated state during reinforced concrete construction). Called spacers) and reinforcing bars can be easily combined.

<Prior Art> Conventionally, in the case of reinforced concrete construction, in order to correctly cover the concrete with respect to the reinforcement, the reinforcement is supported by using a spacer. As a spacer for supporting this reinforcing bar, a block body made of concrete or mortar covering the lower end portion of a double leg supporting leg, or a spacer body having a block shape and three or more sets of facing surface portions are provided. It is provided that at least one or more sets of opposing surface portions thereof are provided with a reinforcing bar mounting groove.

However, in reality, simply placing the reinforcing bar on top of the spacer often causes the spacer to fall over due to the momentum of the concrete pouring when pouring the concrete, or the reinforcing bar may shift and move during the concrete pouring process. From the beginning, it was necessary to start over again.

Therefore, in the spacer having a double leg-shaped support leg,
A binding method for joining reinforcing bars and spacers using a binding wire made of wire or string-like wire (eg Jikho Sho 7-3464)
In addition, a method of integrally fixing the reinforcing bar to the shape steel using a jig in which the push on the reinforcing bar and the connecting rod to the steel bar for supporting the reinforcing bar are fixed by welding etc. (for example, Jikho Sho 56-29453) There is.

<Problems to be solved by the invention> However, in the rectangular block spacer,
Since the spacer body is made of concrete or mortar, when connecting the reinforcing bar and the spacer, it is not possible to bind them with binding wires or fix them by welding, and also to the concave groove provided in the spacer. Placing the rebar alone did not solve the problem of the spacer falling over and the rebar moving when the concrete was being poured. For this reason, when using the above spacers, it is necessary to work with nerves so that the reinforcing bars do not shift and move, which requires skill in arranging work and also has the problem of degrading workability of construction. It was

Also, in the case of the binding method, after wrapping the reinforcing bar and the metal bar of the spacer several times with a binding wire, it is necessary to successively make knots so that they cannot be unraveled,
It is very troublesome, and it takes a lot of time to join the spacers, which results in poor work efficiency.

On the other hand, the method using a welded jig has a problem that the cost is high in the welding work and the like. Furthermore, when using a welded jig, it is very costly and troublesome to make the jig in advance, and once the engaging action to fix the reinforcing bar is fixed once with trouble, it is too strong and it is troublesome to correct the bar arrangement. There was a problem of becoming.

<Purpose> The present invention has been made in view of the above problems. First, it prevents the displacement and movement of the reinforcing bar when placing concrete, prevents the spacer from falling, and ensures that the reinforcing bar and the spacer To improve the workability of the construction as well as the connection,
Secondly, the work efficiency by the bundling method is solved, and thirdly, the cost of the method using a welded jig is reduced, and the engagement and disengagement are facilitated. It is intended to provide a combination of spacer and spring catcher.

<Means for Solving Problems> As a constitution of the present invention for achieving the above-mentioned object, a block-shaped reinforced concrete construction spacer for supporting the reinforcing bar in a floating state and a reinforcing bar placed on the spacer are combined. In the spring catcher, one or more sets of opposing surface portions that can be side surfaces when erected are formed in the spacer, and recess grooves for engagement are formed in the spacer. Alternatively, the wire member is formed by bending, and the hook portion that engages with the concave groove of the spacer is press-fitted on both sides of the pressing portion that presses the reinforcing bar placed on the spacer from above. .

<Operation> According to the spring catcher having the above structure, the reinforcing bar placed on the upper portion of the spacer is pressed by the pressing portion of the spring catcher, and the hook portions provided on both sides of the pressing portion are provided on the opposite side surface portions of the spacer. When it is pressed into the engaging groove, it is elastically deformed as a whole, so that it can be easily combined with the spacer, so that it is possible to solve poor workability and to pinch the reinforcing bar from above and below. Since it has a complicated structure, it is possible to reliably connect the reinforcing bar and the spacer.

<Embodiment> An embodiment will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a mounted state of a spring catcher (A) using a plate material according to an embodiment of the present invention, and FIG. 2 is seen from an axial direction of a reinforcing bar (T) in FIG. A side view is shown.

In FIG. 1 and FIG. 2, the spring catcher (A) is formed by bending an elastically deformable plate material into a semicircular shape, and the pressing portion (1) has an outer diameter of the reinforcing bar (T). It is formed so as to have a radius slightly larger than the radius R, so that the reinforcing bar (T) can be reliably pressed from above.

Further, both sides of the pressing portion (1) are symmetrically curved with the reinforcing bar (T) sandwiched therebetween, and hook-shaped hook portions (2) and (2) formed by bending outward are formed at the tip end of the reinforcing bar (1). The spacer (S), which is substantially parallel to T), comes into engagement pressure contact with an engaging groove provided in the facing side surface portion (S1) of the spacer (S).

With the above configuration, in the bar arrangement, the spacer (S) is interposed between the membrane plate (not shown) and the reinforcing bar (T), and then the pressing portion (1) of the spring catcher (A) is rebared. By pressing against the (T), the hook portions (2) and (2) provided at both ends of the pressing portion (1) are opposed to the side surface portions (S1) of the spacer.
When the whole is elastically deformed by being pressed into contact with the engaging groove provided in the above, it becomes possible to easily combine with the spacer (S).

Therefore, the reinforcement work can be performed easily, and as shown in FIG. 2, since the reinforcing bar (T) is sandwiched from above and below, the reinforcing bar (T) and the spacer (S) can be securely connected. Therefore, it is possible to prevent the spacer (S) from falling down and the reinforcing bar (T) from moving due to the momentum of concrete injection when pouring concrete.

Some spacers have different distances between the two facing surfaces as shown in the figure so that the height of the reinforcing bar can be changed. However, according to the spring catcher (A), the hook portion can be changed. (2) If (2) is in pressure contact with the engaging groove formed in the facing side surface portion (S1) of the spacer (S), the function is sufficiently satisfied. If you make it considering the shape and size of the different side of the diameter and spacer (S), you can use one spring catcher as the reinforcing bar (T) when arranging at least two different heights. A spacer (S) can be attached.

In addition, as an embodiment according to the present invention, as shown in FIG. 3, a spring catcher (A ') using a wire instead of a plate can be considered. This has the same lateral shape as that shown in FIG. 2, and has hook portions (2) and (2) bent outward on both sides of the pressing portion (1).

Above, the spring catcher (A) of this invention
(A ') is not limited to the above embodiment, and for example, when the hook portions (2) and (2) at the tips are provided so as to bend inward as shown in FIG. There are various hooks, such as those that are not hooked but are slightly bent inward to facilitate pressure contact with the concave groove provided in the opposite side surface portion (S1) of the spacer (S), without changing the gist of this invention. Design changes can be made.

<Effect> As described above, according to the combination of the spacer and the spring catcher of the present invention, the reinforcing bar placed on the upper part of the spacer is pressed by the pressing part, and the hook parts provided on both sides of the pressing part are connected to the spacer. When pressed into the groove provided on the opposite side surface of the, the entire elastically deforms,
Since it can be easily combined with the spacer with one touch, the work efficiency during the reinforcement work can be greatly improved. Further, since the reinforcing bar is sandwiched between the upper and lower sides, the reinforcing bar and the spacer can be reliably coupled.

In addition, since it is not necessary to use a welding machine or welding rod, the work spacer is not used and the cost is low, and the connection between the reinforcing bar and the spacer is due to the engagement between the spacer and the spring catcher. It has a practicable effect peculiar that it is free and can be easily modified in the work of arranging.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a spring catcher composed of a spacer and a plate material, FIG. 2 is a side view of the spring catcher, and FIG. 3 is an embodiment of a spring catcher composed of a spacer and a wire material. FIG. 4 is a perspective view showing an example, and FIG. 4 is a side view showing a modified example of the hook portion. (1) …… Pressing part (2) …… Hook part (A) …… Spring catcher (S) …… Side facing part (S1) …… Reinforced concrete construction spacer (T) …… Reinforcing bar

Claims (1)

[Scope of utility model registration request] Claims: 1. A block-shaped reinforced concrete construction spacer that supports a reinforcing bar in a floating state, and a spring catcher that connects the reinforcing bar placed on the spacer, and one set that can be a side surface when standing upright on the spacer. The recessed groove for engagement is formed in the above facing surface portion, and the spring catcher is formed by bending an elastically deformable plate material or a wire material as a whole, and presses the reinforcing bar placed on the spacer from above. A combination of a spacer and a spring catcher, characterized in that hook portions are formed on both sides of the pressing portion to engage with the concave groove of the spacer in pressure contact.