JPS609318Y2 - Installation device for plastic reinforced wire mesh - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for attaching reinforcing wire mesh, such as metal lath, wire lath, welded wire mesh, etc., which is embedded in a plastic material such as lightweight cellular concrete used as a construction member.

Conventionally, when manufacturing plastic materials such as thin lightweight cellular concrete, wire mesh was placed along multiple support rods, or the wire mesh was bent several times and supported almost at right angles to the bent portions. Insert the rods and lock the wire mesh to the support rods with clips or wires, then insert and arrange multiple wire meshes at intervals within the formwork to support the support rods in a predetermined position, and place the wire meshes in the formwork. For example, in Japanese Utility Model Publication No. 49-375, mortar is poured in, and after the mortar has hardened, the support rods are pulled out, leaving only the wire mesh, and this is cut to a predetermined size using a cutter.
This method is well known and is described in Japanese Utility Model Publication No. 49-1403.

However, in the conventional lightweight cellular concrete produced in this manner, it is difficult to accurately and efficiently place the wire mesh at the center of the product or at a predetermined cover thickness.

Further, in order to accurately arrange the reinforcing wire mesh made of plastic material, there are methods such as increasing the number of supporting points of the wire mesh with respect to the support rods, or means of tensioning and fixing the wire mesh by pulling it from the periphery.

However, these methods have drawbacks such as being time-consuming, labor-intensive, inefficient, and requiring the use of complicated fixing devices.

Therefore, the purpose of this invention is to eliminate such drawbacks by making it possible to place reinforcing wire mesh precisely and accurately in the center of the product or at a predetermined cover thickness when making thin plastic materials. It is an object of the present invention to provide a mounting device for plastic material reinforcing wire mesh that can be efficiently arranged.

Other objects, features and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

Figures 1 to 3 show the case where this invention is incorporated into a mesh-like wire mesh or the like.

In this embodiment, the reinforcing bar, that is, the wire mesh 1 is formed by a molding machine such as a press to form an insertion portion 7 for the support rod 4 at the support rod position as shown in FIG.

This process allows the support rod 4 to be easily inserted and formed with high precision.

This molding process for forming the insertion portion 7 of the support rod 4 is performed so that the uneven portions are symmetrical when viewed from a plane cross section of the wire mesh 1, and the intervals thereof are about 50 to 10,077,1771 points.

Of course, this distance is determined as appropriate depending on the size and weight of the wire mesh 1.

In this embodiment, the insertion portion 7 is formed by alternately bending, for example, every two reinforcing bars, that is, the horizontal bars 2 of the wire mesh 1 in opposite directions in the lateral direction.

The support rod 4 to be inserted has a round cross section, and is provided with at least one, preferably two, protrusions 5 on the upper part of which the transverse bars 2 are engaged, and which allows rotation of the support rod 4 and It is preferable that a bending arm 6 is provided for convenient vertical movement.

Further, such insertion portions 7 are formed along the reinforcing bars, that is, the wire mesh 1, at appropriate intervals.

In order to incorporate the support rod 4 into the wire mesh 1 in which the insertion portion 7 of the support rod 4 has been appropriately processed, the support rod 4 having a sharp tip so as to be easily inserted into the wire mesh 1 is molded into the wire mesh 1. When the support rod 4 is fully inserted into the insertion portion 7, the protrusion 5 provided on the upper part of the support rod 4 is aligned with the transverse strip 2 by rotating the support rod 4 by an appropriate angle α, for example, approximately 60° to 90°. Since they are locked, the wire mesh 1 can be fixed to the support rod 4 by these protrusions 5.

As described above, the support rod 4 inserted and locked into the insertion part 7 formed symmetrically with respect to the center plane of the wire mesh 1 has its axis located almost on the center surface of the wire mesh 1, and is relative to the wire mesh 1. Since the support rods 4 are arranged with high precision, the reinforcing wire mesh 1 can be placed precisely and efficiently in the center of the plastic material and at a predetermined covering thickness. The wire mesh can be placed within the formwork with high precision without any misalignment.

Further, as shown in FIGS. 4 and 5, when the reinforcing wire mesh is a so-called expanded metal wire mesh 11 such as metal lath, the insertion portion of the support rod 14 is inserted in the same manner as in the previous embodiment. Make horizontal cuts at appropriate intervals in the vertical and vertical directions of the wire mesh 11 so as to form insertion portions for the support rods 14 so that the uneven portions on both sides are symmetrical when viewed from the plane cross section of the wire mesh 11. They are shaped and processed alternately to give them their shape.

Such insertion portions are appropriately formed at required intervals in the lateral direction depending on the size and weight of the wire mesh 11 and the number of support rods 14 used.

The support rod 14 is similarly inserted into the insertion portion of the wire mesh 11 formed in this way, and after insertion, the support rod 14 is rotated approximately 60° to 90° to remove the protrusion 15 provided near the upper end of the support rod 14. The wire mesh 1 of the support rod 14 is hooked on the molded part of the wire mesh 11.
1 is fixed above and below.

In this way, a predetermined number of support rods 14 are fixed to the wire mesh 11,
It does not fall or shift its position during transportation to the formwork, and can be placed in the formwork with high precision.

In this way, the device for attaching reinforcing wire mesh made of plastic material according to this invention forms uneven parts symmetrically on both sides of the center plane of the wire mesh to form the insertion part of the support rod, and supports the insertion part of the support rod. By simply inserting the rod and rotating it at an appropriate angle, the protrusion near the upper end of the support rod is locked to the wire mesh, and the support rod is fixed to the wire mesh, making it easy and efficient to fix the reinforcing wire mesh. By pressing the insertion part and pressing the other parts flat at the same time, the distortion can be corrected and the reinforcing bar, that is, the wire mesh, becomes linear.The insertion part is symmetrical with respect to the center plane of the wire mesh, so the direction can be adjusted. The strength of the wire mesh is increased by forming a curved part at the insertion part, and the strength is further increased because the insertion part becomes the center of the thickness of the plastic material and the support rod has a rib shape. The insertion position is highly accurate, the press forming process can be automated, and a high-quality plastic material in which the reinforcing wire mesh is precisely placed in the center can be produced.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing one embodiment of a reinforcing wire mesh attachment device according to this invention, Fig. 2 is an enlarged cross-sectional schematic diagram thereof, Fig. 3 is an enlarged partial plan view, and Fig. 4 is another embodiment. Fig. 5 is an enlarged cross-sectional view. In the figure, 1, 11... wire mesh, 4, 14...
・Support rod, 5゜15...protrusion.

Claims (1)

[Claims for Utility Model Registration] 1. Two or more rows of support rod insertion portions formed by alternately arranging a plurality of concave and convex portions in series on a reinforcing wire mesh, and at least one protrusion near the top end. The plastic material reinforced wire mesh is characterized in that the protrusion can be locked to the wire mesh portion by inserting the supported rod into the insertion portion of the reinforcing wire mesh and rotating it by approximately 60° to 90°. Mounting device. 2. The plastic material reinforcing wire mesh mounting device according to claim 1, wherein the support rod insertion portion is formed by a plastic forming machine such as a press machine. 3. The device for attaching a plastic material reinforcing wire mesh according to any one of Claims 1.2 of the Utility Model Registration Claim, wherein the wire mesh is a mesh-like wire mesh or an expanded metal-like wire mesh.