JP2000291207A - Support spacer for concrete reinforcing metal wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply attach with a small force by providing a circular arc-like fulcrum on one end of a trapezoidal support base, making a hole directing the direction of a fulcrum side provided on one side a force point side, and making an action point of a hook point formed by protruding a concrete reinforcing metal wire in the upper direction of the support base. SOLUTION: A circular are arcuate fulcrum 2 is provided on one end of the lower side of a trapezoidal support base 1 formed integrally of the same substance-based solid as concrete, and a hole 3 is provided slightly downward in the direction of the fulcrum 2 side from one side to be made the side of a point of force application. Furthermore, a rod-like operation member being a raising point of force application can be inserted, and a hook part 4 is fixed to be buried on the upper part of the upper base 1 formed so that an edge part protruded so as to hook the concrete reinforcing metal wire as the action point is folded in the direction of the side of the point of force application. Thereby the function of a lever is possessed on the support spacer of the reinforcing metal wire used for the reinforcement of concrete mainly in construction, and attaching can be performed by slight force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention mainly relates to a method of removing a reinforcing metal wire such as a wire mesh (wire mesh bar) and a reinforcing bar used for reinforcing concrete in a building prior to placing concrete. The present invention relates to a concrete-reinforced metal wire support spacer used for supporting a required size on a formwork made of wood or a deck plate remaining as a part of a building, and for securing concrete covering.

[0002]

2. Description of the Related Art Conventionally, there is no spacer having a lever function when a spacer is mounted under a welded wire mesh, a reinforcing bar, or the like, which are united and integrated with each other on a floor and have both weight. Since it is integrated and has both weight, it cannot be lifted by hand, and it is necessary to use a lever or the like. In that case, raise the lever with one hand and put the spacer down with the other hand, resulting in an unstable posture, and the number of spacers,
For example 10,000 if 10,000 m ² floor area, 100,000 to about one per floor 1 m ² and so m ² if 100,000 and so many, the hard labor is not expedite also work. In addition, the supporting height varies depending on the thickness of the concrete, and a spacer corresponding to the height is required. Further, the spacer has no direct relation to the concrete reinforcement, and conversely becomes a foreign substance.

[0003]

Therefore, it is easy to use a lever or the like in such an unstable posture without having to take time.
Whether a spacer having the function of leverage is not possible, and the fact that a spacer having a height corresponding to the thickness of the concrete is required in the production also increases the cost for the mold. Therefore, in order to make it impossible to support even a support table with a small height type and to minimize foreign matter in the material used, the hook and the support table are made of metal wire, or only the support table is made of the same material as concrete. It was developed by

[0004]

Means for Solving the Problems A support base integrally formed in a trapezoidal shape from a solid body is provided from a material having the function of a lever, and an arc portion is attached to one lower end thereof to serve as a fulcrum. A hole is provided slightly downward on the fulcrum side from one side to make it the power point side, so that a rod-shaped operating member that becomes a force point to be inserted can be inserted, and the tip part that protrudes so as to hook a concrete reinforcing metal wire as an action point, The hook portion formed so as to be bent in the direction of the force point was individually buried in the upper portion of the support base.

[0005] The same function as a wire is used for a floor material that is removed after placing concrete, so that even if the floor material is removed, the lower portion is exposed as little as possible, so that the lower middle portion is not connected to a trapezoidal shape. A pair of formed support bases is provided, and a lower end is provided with an arc portion to serve as a fulcrum, and has a function instead of a hole. To the fulcrum side by attaching the protruding part downward to the fulcrum side;
The rod-shaped operation member is inserted into the recessed side of each protrusion to cause it to be raised, and the tip end projecting upward to bend the concrete reinforcing metal wire as the point of action is bent toward the point of force. Were fixed to the upper part of the support table, respectively. In addition, if the height of the support is increased, the connecting member can be attached to the hook portion or the support and reinforced.

The reason why the rod-shaped operating member is provided obliquely is that, in order to obtain a larger force with a small force as a principle of leverage, a long protruding portion of a reinforcing metal wire such as a welded wire mesh or a grounded reinforcing bar is used. When raised using the rod-shaped operating member, one side of the side gripped by hand comes in contact with the other reinforcing metal wire that is lifted, so that there is enough space so that it does not interfere with It is also possible to use a member having a length that can be accommodated within one corner by providing the hole, and the position where the hole is provided and the position where the connecting member with a protruding middle is attached are not regarded as important.

The reason why the lower end serving as the fulcrum is arced is that when the hook portion is hooked on the concrete reinforcing metal wire and the rod-shaped operating members are inserted and caused, they do not move because they are bound and have a heavy weight. The fulcrum of the support stand is a moving fulcrum that moves while rotating so as to slide. for that reason,
This is because it is more smoothly without getting caught.

[0008] In the solid and integrally formed support base, since the grounding surface serving as a frictional resistance is wide, a groove is formed at the time of formation so as to reduce even a little to make it slippery, or a hard resin or the like which is slippery is stuck, and furthermore, concrete and In order to enhance the adhesiveness of the surface, irregularities were formed on the surface and the surface other than the side surface.

Further, a groove is provided in the upper portion of the support base so that the concrete reinforcing metal wire can be accommodated in that portion when the hook is raised.

In the shape of the hooking portion, the projecting portion may only protrude upward from the upper portion of the support table. However, in order to make it harder to come off, the tip portion has a shape that bends to the force point side in the working direction. By doing so,
If the gap between the lower surface and the upper end of the support base is made slightly smaller than the reinforcing metal wire, it can be fixed.

In addition, if a hook portion is formed in a U-shape, it has two functions that can be hooked and fixed. As a fixing method, a support leg can be shared at a different height by attaching a support leg to a lower portion and changing a fixing position of the support leg.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. In FIG. 1, a support base 1 integrally formed of a solid of the same type as concrete is provided, and a lower end serving as a fulcrum of movement can be formed in a normal trapezoidal shape. A hole 3 into which the rod-shaped operating member C can be inserted is provided in the direction of the circular arc portion 2 from one side surface, and the tip portion projecting upward is supported in the direction of the point of force so as to hook a metal reinforcing metal wire. The hook portion 4 bent until the gap between the upper end of the base 1 and the lower surface of the hook portion becomes slightly smaller than the concrete reinforcing metal wire is fixed so as to be embedded in the upper portion of the support base 1 so that the concrete reinforcing metal wire does not come off in the gap. It can be fixed.

In the embodiment shown in FIG. 3, a groove 5 for accommodating a concrete reinforcing metal wire is provided at the upper part of the support base.

In the embodiment shown in FIG. 4, as a method of fixing the hook portion 4b formed in a U-shape, a pair of openings are provided in the direction of the hole 3 on the support point 1 on the side of the point of force. The support legs 8 were respectively attached to the support bases 1 and fixed so as to be embedded in the upper part of the support base 1 with a gap.

In the embodiment shown in FIG. 5, in order to further improve the sliding of the arc portion 2 serving as a fulcrum, a groove 5a is formed in that portion.
Was provided to reduce the contact area and reduce the frictional resistance. Alternatively, a slippery material 6 such as a hard resin can be attached (see FIG. 6).

As another embodiment, the surface other than the arc portion 2 and the side surface can be partially protruded or made corrugated to increase the adhesion between the support 1 and concrete.

In the embodiment shown in FIG. 7, in order to obtain the same function in the wire, a pair of support bases 1a each having a trapezoidal shape whose lower middle is not connected is provided, and an arc portion 2a is provided at one lower end. As a fulcrum, a projecting portion is attached to one side face downward so as to be connected to each other by a connecting member 7 having an intermediate projecting portion, and the projecting portion is attached to a side near the arcuate portion 2a on the opposite side. The hook 4a is bent so that the tip end projecting upward from the support stand 1a is bent toward the point of force and the gap between the lower surface thereof and the upper end of the support stand 1a is slightly narrower than the concrete reinforcing metal wire.
Each was fixed on the upper part.

In the embodiment shown in FIG.
It is also possible to connect and reinforce the upper part of a with the connecting member 7a. The connecting member 7a may be attached to the side of the support 1a.

In the embodiment shown in FIG. 9, another hook portion 4b formed in a U-shape is used as another hook portion.
With the opening of the support base 1a directed toward the point of force of the support 1a, a support leg 8 was attached to the lower part thereof, and an appropriate portion of the support leg 8 was fixed above the support 1a. Further, the side surfaces of the support base 1a can be connected and reinforced by the connecting member 7a. Note that the hook portion 4b may be used.

In the embodiment shown in FIG. 10, as the other shape of the hooking portion, the lower surface and the upper end of the support stand are narrowed so that the hooked portion whose tip portion is bent toward the point of force is slightly inside the tip portion. The hook portion 4c in which the gap with A is slightly narrower than the concrete reinforcing metal wire may be used.

Similarly, in the hook portion formed in a U shape, a gap between the lower surface and the upper surface on the lower side is narrowed by the concrete reinforcing metal wire so as to squeeze a part slightly inward from the upper end. The hook 4d may be slightly narrowed (see FIG. 11). Further, since the U-shaped opening is slightly narrower than the concrete reinforcing metal wire and does not catch as it is, the catching portion 4e having the upper end protruded more.
Can also be used (see FIG. 12).

The state of the embodiment of the present invention will be described with reference to a side view of a hook portion 4b formed in a U shape, at one corner of a concrete reinforcing metal wire B fixed on a floor D. Operation member C has hole 3
The support base 1 inserted into the hook is turned upside down, and
Then, the concrete reinforcing metal wire B is hooked (see FIG. 13), the operating member C serving as a point of emphasis is raised, and when the support 1 rises, the operating member C is pulled out and the mounting is completed (see FIG. 14).

[0023]

According to the present invention, the fulcrum is rounded at the fulcrum portion, and a slippery material or an uneven groove is provided at the fulcrum portion to reduce frictional resistance so that the support can be raised more smoothly without being caught on the floor. . In addition, by using a material similar in quality to concrete, foreign matter is reduced as much as possible, and by providing irregularities on the side surfaces other than the fulcrum, adhesion is further strengthened. By providing it, it can be fixed more securely.

The hook portion is bent so that the gap with the upper end of the support stand is slightly smaller than the concrete reinforcing metal wire, so that the hook portion is less likely to come off when the hook portion is raised, and can be fixed by doing so. In the U-shape, if you attach support legs to the lower part and change the attachment position, one support stand can respond to different heights, save expensive mold costs, and furthermore, attach one upper end part By squeezing or projecting more, it is easy to catch and hard to come off.

The operating member does not remain as a foreign matter because it can be removed after the support base is attached. In addition, a single hole is provided so that a tool such as a screwdriver or a piece of a reinforcing bar at a construction site can be used instead of a forcibly manufactured operating member.

By using a spacer having the function of a lever, which cannot be used in conventional products, the welded wire mesh is laid on the floor, and even after binding each other, the lever is raised with one hand as in the conventional product, and the other hand is used. In the process of getting up, you are freed from the heavy labor of unstable posture of putting down the spacer, and also use the concrete reinforcement metal wire and the load of the person in the process of getting up, the spring back of the metal wire (to return the metal to its original state) This is an excellent spacer that can be used to secure the concrete reinforced metal wire that fits in the hooked part without coming off.

[Brief description of the drawings]

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

FIG. 2 is a side view of an embodiment of the present invention.

FIG. 3 is a perspective view of an embodiment of the present invention in which a groove is formed on an upper portion of a support base.

FIG. 4 is a perspective view of another hook portion according to an embodiment of the present invention.

FIG. 5 is a perspective view of an embodiment of the present invention in which a groove is formed in an arc portion.

FIG. 6 is a perspective view of an embodiment of the present invention in which a slippery material is attached to the arc portion.

FIG. 7 is a perspective view of another embodiment.

FIG. 8 is a perspective view of an embodiment in which hook portions of other embodiments are connected.

FIG. 9 is a perspective view of another embodiment in which another hook portion and a side surface of a support are connected.

FIG. 10 is a partial side view of an embodiment of another shape of the hook portion.

FIG. 11 is a partial side view of an embodiment of another shape of a hook portion.

FIG. 12 is a partial side view of an embodiment of another shape of the hook portion.

FIG. 13 is a development view of a side surface of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1.1a Support stand 2.2a arc part 3 hole 4.4a 4b 4c 4d 4e Hook part 5.5a groove 6 Slippery material 7 Intermediate projecting connecting material 7a Connecting material 8 Support leg A Upper end B Concrete reinforced metal wire C Operating member D Floor

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 7, 2000 (2000.1.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

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

FIG. 2 is a side view of an embodiment of the present invention.

FIG. 3 is a perspective view of an embodiment of the present invention in which a groove is formed on an upper portion of a support base.

FIG. 4 is a perspective view of another hook portion according to an embodiment of the present invention.

FIG. 5 is a perspective view of an embodiment of the present invention in which a groove is formed in an arc portion.

FIG. 6 is a perspective view of an embodiment of the present invention in which a slippery material is attached to the arc portion.

FIG. 7 is a perspective view of another embodiment.

FIG. 8 is a perspective view of an embodiment in which hook portions of other embodiments are connected.

FIG. 9 is a perspective view of another embodiment in which another hook portion and a side surface of a support are connected.

FIG. 10 is a partial side view of an embodiment of another shape of the hook portion.

FIG. 11 is a partial side view of an embodiment of another shape of a hook portion.

FIG. 12 is a partial side view of an embodiment of another shape of the hook portion.

FIG. 13 is a side elevational view showing an embodiment of the present invention.

FIG. 14 is a side elevational view showing an embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1 ・ 1a Support base 2.2a Arc section 3 Holes 4 ・ 4a ・ 4b ・ 4c ・ 4d ・ 4e Hooking section 5.5a Groove 6 Slippery material 7 Intermediate projecting connecting material 7a Connecting material 8 Support Leg A Upper end of support base B Concrete reinforced metal wire C Operating member D Floor

Claims (6)

[Claims] 1. A trapezoidal support base (1) is provided, and a lower end of the support base (1) is provided with an arc portion (2) to serve as a fulcrum, and a hole (3) is formed on one side surface in the direction of the fulcrum. The support portion (1) is provided with a hook portion (4) formed so that a tip portion protruding upward so as to hook a concrete reinforcing metal wire as an action point is bent in the direction of the force point side.
A concrete-reinforced metal wire support spacer having a lever function of being fixed to an upper portion of the metal wire. 2. The concrete-reinforced metal wire supporting spacer according to claim 1, wherein a groove (5) is provided on the support base (1). 3. The concrete-reinforced metal wire supporting spacer according to claim 1, wherein the side surface of the support base (1) other than the arc portion (2) is uneven. 4. A groove (5a) is provided in the arcuate portion (2) of the support base (1) so that the portion is slippery, or a material of a slippery material (6) is attached to the portion. The spacer for supporting a concrete-reinforced metal wire according to any one of the preceding claims. 5. A pair of support bases (1a) each having a trapezoidal shape whose lower middle portion is not connected is provided, and an arc portion (2) is provided at one lower end.
a) is used as a fulcrum, and a connecting member (7) with an intermediate protruding portion is provided with a protruding portion downward on one side so as to be connected to each other so as to be a power point side, and is attached upward to a fulcrum side;
A hook portion (4a) formed so that a tip portion protruding upward so as to hook a concrete reinforcing metal wire as an action point is bent in the direction of a force point is attached to the support base (1).
a) Concrete reinforcing metal characterized by having a function of a lever fixed to an upper portion or a hook portion or a support (1a) which can be connected by a connecting member (7a). Line support spacer. 6. The hook portion according to claim 1, wherein the hook portion has a support leg attached to a lower portion of the hook portion formed in a U-shape. Concrete reinforced metal wire support spacer.