JP2003013551A - Supporting spacer for concrete reinforcement metallic wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily mountable reinforcement metal wire supporting spacer supporting a reinforcement metal wire on a floor while keeping a necessary dimension. SOLUTION: In this supporting space for concrete reinforcement metallic wire, a supporting base 2 integrally molded of a plastic resin and the like is formed into a wedge shape in a lateral side view, and an engaging part 3, in which an opening part dimension of an upper face entrance is set to be slightly smaller than an outside diameter dimension of a welded wire mesh, for engaging the welded wire mesh having a bottle shape in the lateral side view and is arranged on one end side of the supporting base 2 by cutting a lateral groove horizontally crossing the longitudinal direction of the supporting base. In the lower part edge on the opposite side of the engaging part 3, an insertion part 4 projected forward is arranged for fixing the welded wire mesh and preventing it from coming off. In addition, a step-shaped rugged part serving as a nonslip part 6 is arranged on the slant face for preventing the spacer from being pressed and returned by a load of the welded wire mesh and the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly supports a reinforcing metal wire such as a wire mesh bar (welded wire mesh) and a reinforcing bar used for concrete reinforcement in a building on a floor in a required size before placing concrete. However, the present invention relates to a concrete reinforced metal wire support spacer used to secure the covering of concrete.

[0002]

2. Description of the Related Art Wire mesh bars (welded wire mesh)
Will be described as a welding wire mesh. Conventionally, in a welding wire net, a spacer is used between the floor and the welding wire net in order to provide a concrete swallow portion. There are two ways to install the spacers, one before and one after the welding wire mesh reinforcement. The welding wire mesh used is a metal wire, the diameter of which is mainly 6 mm, and one side is 7.5 cm, 10 cm, 15
The three types of cm square are generally used, and the size is 1 m.
There are x2m and 2m x 4m. First of all, if the spacer is installed after laying the welded wire mesh on the temporary floor surface, each of the welded wire meshes is bundled and integrated,
It is installed on the entire surface of the floor, and in that state, the welding wire net is lifted by the lever or hand by about the height of the spacer, and the spacer is installed between the floor and the welding wire net reinforcement. In order to lift it up, it must be lifted without stepping on the welded wire mesh, but one corner is (7.5
・ Because it is narrow with 10 ・ 15) cm square, it will be work to stand on the floor with one toe in one corner, unbalanced and welded wire mesh is tied and heavy. The spacers are installed by raising the welded wire nets with the help of the like, but it is decided that each one will be within 1 m ² , and the number will be large and it will be a long and heavy work. In recent years, spacers having a lever function have also been found.

[0003]

Therefore, without taking such trouble, it is possible to easily and reliably hold the concrete-reinforced metal wire without lifting it by using a lever, etc.
Moreover, it was invented that it could not be mounted without binding.

[0004]

In order to achieve the above object, a support base formed in a wedge shape in a side view,
An engaging portion for engaging the concrete reinforcing metal wire is provided on the apex portion on one end side thereof, and an inserting portion projecting forward is provided at the lower end of the inclined portion on the opposite side, and the temporary portion before the concrete is placed. Insert the insertion part into the gap between the bottom of the concrete-reinforced metal wire installed on the floor and the floor, and apply force so that it pushes from the back of the support base, the welding wire net will be lifted with a slight force and the engagement part It can be fixed to.

The wedge-shaped spacer is
Due to the shape, if the pushing force is not applied in the middle, it may be returned to the original position by being pushed back by the load of the welding wire mesh or the like. As a countermeasure against this, an uneven skid portion may be provided on the inclined portion.

As a method of using a tool such as a lever, an engaging portion such as a recessed lever is provided in the inclined portion, and the support base is pushed until the engaging portion comes out of the welding wire mesh, and the engaging portion If the lever and the like are engaged with it as the point of action, and the part where the welding wire mesh and the tool such as the lever come into contact is the fulcrum, and force is applied so that the tool such as the lever is tilted to the rear of the spacer. With the lever principle, it can be attached with even less force.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments will be described with reference to the drawings based on examples. First Embodiment From FIG. 1, a supporting base 2 integrally formed of plastic resin or the like in a wedge shape when viewed from the side, and a top portion on one end side thereof are arranged so as to be orthogonal to the longitudinal direction of the supporting base 2 horizontally. A groove is dug in the lateral direction so that the size of the opening at the upper surface entrance is slightly smaller than the outer diameter of the welded wire netting 7. It is formed in a vase shape when viewed from the side, and the welding wire netting 7 can be engaged. The engaging portion 3 is provided so that the welded metal mesh 7 engaged so as to fall can be fixed so as not to come off, and the insertion portion 4 is provided so as to project forward at the lower end of the inclined portion on the opposite side. .

Further, in order to prevent the metal wire 7 from being pushed back by the load of the welding wire net 7 or the like, a step-like unevenness is provided on the inclined surface to form the non-slip portion 6.

As another engagement method from the second embodiment, FIG. 2, when viewed from the side, it projects above the support base 2 and the tip portion is bent forward to provide a welding wire net on its lower surface and the support base. Two
The engaging portion 5 is provided so as to be engaged so as to be sandwiched between the upper surface and the upper surface and to be fixed so as not to come off. Again, the size of the opening at the entrance is made slightly smaller than the outer diameter of the welded wire mesh 7.

As a method of using a tool such as a lever 9 according to the third embodiment, FIG. 3, a plurality of engaging portions 10 for a tool such as a lever having a hollow shape are provided in the inclined portion, and the engaging portions are provided. The support base 2 is pushed to a position where the wire mesh 10 comes out of the welding wire net 7 and the lever 10 is engaged with the engaging portion 10 to make it an action point, and the portion where the tool such as the welding wire mesh 7 and the lever 9 make contact is a fulcrum If a tool such as the lever 9 is applied to the rear of the support base 2 toward the engagement portion 3 side, the lever can be mounted with a little force by the lever principle.

An embodiment of the first embodiment of the present invention will be described with reference to a developed view. 4, the insertion part 4 is welded wire mesh 7
Then, insert it into the gap of the temporary floor 8 and push it in as it is, as shown in FIG. 6, when the welding wire net 7 comes above the pot-shaped engaging portion 3, it will drop in due to the load of the welding wire net 7 etc. It engages with the pot-shaped engaging portion 3 and is fixed without any detachment.

[0012]

EFFECTS OF THE INVENTION By forming the spacer itself into a wedge shape and providing an anti-slip portion on the inclined portion, the welding wire net can be lifted up with a slight force in the gap between the welding wire net and the temporary floor. Instead of being pushed forward and pushed back by the load of the welding wire mesh or the like, it is automatically engaged and fixed to the engaging portion by the load of the welding wire mesh or another worker. Furthermore, if a tool such as a lever is engaged with the engaging portion such as a dented lever provided on the inclined portion, it can be mounted even under the condition of excessive load such as other workers or construction materials. It is possible. Like the conventional method,
Standing in one corner of the welding wire mesh with your toes, you can free yourself from the heavy labor of lifting with a lever or hand, which will lead to a shorter construction period.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view of a form showing another method of engaging the welding wire net according to the second embodiment of the present invention.

FIG. 3 is a side view of an embodiment showing a method of mounting the welding wire net using a tool such as a lever according to the third embodiment of the present invention.

4, 5, 6 is a side development view of the form showing the method of mounting the welding wire net according to the first embodiment of the present invention.

[Explanation of symbols]

1 Spacer 2 Support 3 Vase-shaped engaging part
4 Insertion part 5 Engagement part so as to be sandwiched 6 Step-like non-slip part 7 Welded wire mesh (concrete-reinforced metal wire) 8 Temporary floor before concrete placement 9 Lever bar (tool) 10 Lever bar (tool), etc. Engagement part to be engaged 11 Shows the direction of movement of the spacer 12 Shows the direction to apply force of lever (tool) etc.

Claims (5)

[Claims] 1. Floating up by pushing the tip part into the gap between the lower part of the concrete reinforcing metal wire (7) installed on the temporary floor (8) before placing concrete and the temporary floor (8). While being a concrete reinforced metal wire support spacer (1) mounted and supported below the concrete reinforced metal wire, a support base (2) formed in a wedge shape when viewed from the side, and a top portion on one end side thereof. It is characterized in that it comprises an engaging portion (3) for engaging the concrete reinforcing metal wire (7) with the above and an inserting portion (4) provided at the lower end of the opposite inclined portion so as to project forward. Concrete reinforced metal wire support spacer. 2. The shape of the engaging portion (3) is a vase shape when viewed from the side, and when seen in a plan view, the upper groove is a lateral groove that is orthogonal to the longitudinal direction of the support base (2). The concrete reinforced metal wire supporting spacer according to claim 1, further comprising an engaging portion (3) which is slightly smaller than the wire diameter of (7) so that the engaged concrete reinforced metal wire (7) can be fixed without coming off. . 3. The concrete reinforcing metal wire (7) is provided with an engaging portion (5) projecting above the support base (2) when viewed from the side, and a tip portion bent forward. The concrete reinforced metal wire support spacer according to claim 1, further comprising an engaging portion (5) sandwiched between the lower surface and the upper surface of the support base (2) so as to be fixed. 4. The concrete reinforced metal wire support spacer according to claim 1, wherein the inclined portion of the support base (2) is provided with an uneven slip prevention portion (6). 5. A tool engaging portion (10) capable of engaging a tool such as a lever (9) with the inclined portion of the support base (2).
The concrete reinforced metal wire support spacer according to any one of claims 1 to 4, wherein the spacer is provided.