JPH112U - Construction sleeve tube support - Google Patents

Abstract

(57) [Abstract] [Purpose] A sleeve tube for forming a through hole in a concrete wall or the like, such as a vinyl chloride tube or a paper tube, having the same outer diameter but having a different inner diameter depending on the wall thickness. The present invention provides a support that can be used in accordance with the inner diameter of the sleeve tube and that can easily and accurately mount the sleeve tube. [Constitution] An inner ring portion into which a nail can be inserted and an outer ring portion having a flange portion and a cutout portion are provided coaxially, and a plurality of joining pieces extend radially from the outer periphery of the inner ring portion in the same direction. Bend and connect to outer ring.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 In this invention, in order to provide through holes for facilities in the walls and beams of the concrete structure, the sleeve tube is arranged at a desired position during the formwork work, but the sleeve tube is attached to the formwork and fixed. About the tool.

[0002]

[Prior art]

 Conventionally, as a support for a sleeve tube, as shown in FIG. 4, there is a support having an outer ring portion and an inner ring portion connected to each other with a joining piece, which is formed to have an appropriate thickness. , Φ100, φ150, etc. are commercially available. The method of use is to insert a nail into the inner ring part, drive it into one of the molds and fix one end of the sleeve tube to a support fixture fixed at the desired position. Generally, the inner wall is fixed with the outer ring fitted to the outer ring, and the outer ring of the support is fitted and attached to the other end, and the other formwork is arranged to attach the sleeve tube to the desired position. Met.

[0003]

[Problems to be solved by the invention]

 In the conventional support described above, for example, the outer diameter of a PVC pipe or a paper pipe used as a sleeve pipe is the same, but the inner diameter differs depending on the wall thickness of the pipe. Since there are different types of wall thickness depending on the type, it is necessary to support each size with an outer ring formed on the outer diameter applicable to those inner diameters. However, the management is very troublesome, and the manufacturer has a problem that the production cost is high and the inventory management is troublesome due to the production of many kinds.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of the above-mentioned conventional problems. The purpose of the invention is to use a vinyl chloride tube or a paper tube for the sleeve tube, for example, if the outer diameter is φ100, the inner diameter is larger. It is intended to provide a sleeve tube support that can be used regardless of the type, and that can easily and reliably mount the sleeve tube to the formwork.

[0005] As means for this, an inner ring portion into which a nail can be inserted, a flange portion formed on one side along the outer periphery, and an outer ring portion formed with a cutout portion are provided coaxially with the inner ring portion, and these gaps are duplicated. A number of the joining pieces extend radially from the outer periphery of the inner ring portion, are bent in the same direction, and are connected to the outer ring portion.

According to the above structure, since the notch is formed in the outer ring portion and the inner ring portion and the outer ring portion are connected by a plurality of joining pieces, both ends of the notch portion are joined by applying a load to an appropriate position of the outer ring portion. By doing so, the outer diameter of the outer ring portion can be adjusted.Also, a plurality of joining pieces extend radially from the outer periphery of the inner ring portion, and are bent in the same direction to be connected to the outer ring portion. When a load is applied in the same manner, the bent portion of each joint piece bends in the same direction, almost to the same extent, so that the axial center of the inner ring portion and the outer ring portion does not shift and the outer diameter of the outer ring portion increases. It can be adjusted to an arc with a small flatness. That is, it can be used for either a vinyl chloride tube or a paper tube regardless of the size of the inner diameter. In addition, the nail can be inserted into the inner ring, and the flange is formed along the outer periphery of one side of the outer ring, so that the sleeve tube can be easily and reliably attached to the formwork. This is to solve the conventional problem.

[0007]

【Example】

 Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is an explanatory view showing a use state of the embodiment of the present invention. Reference numeral 1 denotes an outer ring portion formed to an appropriate thickness. A flange 2 is provided along the outer circumference of one end face, and a projection piece 4 having a through hole 3 for a nail hole is formed at an appropriate position on the flange 2 and provided along the periphery of the other end face. Protruding pieces 5 are provided at intervals so as to protrude slightly from the outside toward the axial direction. This is a guide that allows the sleeve tube to be easily mounted on the outer ring portion. Reference numeral 6 denotes a notch, which is formed below the outer ring portion 1 with an appropriate gap width. Reference numeral 7 denotes an inner ring portion, and a through hole 8 is formed at the center thereof so that a nail can be inserted. The inner ring portion 7 and the outer ring portion 1 are provided coaxially, and their gaps are connected by joining pieces 9. The plurality of joining pieces 9... Extend radially from the outer periphery of the inner ring portion 7, and are bent in the same direction from about the middle to be connected to the inner wall of the outer ring portion 1. A protruding piece 4 is formed at an appropriate position of the flange portion 2 to form a through hole 3 for a nail hole. One outer diameter of the through hole 3 is larger than the outer diameter of the nail to be inserted. The nail can be easily inserted by forming it large and gradually reducing the diameter toward the other.

FIG. 3 is a perspective view showing a use state of the embodiment of the present invention, in which the support of the present invention is inserted into the concrete casting side of one of the formwork B, and the nail C is inserted into the inner ring portion 7. The sleeve tube A is fixed by hitting it into a desired position of the formwork B, and one end of the sleeve tube A is attached with its inner wall fitted to the outer ring portion 1. Adjust the outer diameter of the outer ring part 1 and attach it. On the other hand, insert and attach the outer ring part 1 of another support in the same manner to the other end, arrange the other form B and attach the sleeve tube. After the concrete is cast, it can be removed from the concrete wall together with the form when removing the form.

[0009]

[Effect of the invention]

 As described above in detail, according to the support for the construction sleeve tube of the present invention, the notch is formed in the outer ring part, and the inner ring part and the outer ring part are connected by a plurality of joining pieces. The outer diameter of the outer ring part can be adjusted by applying a load to the right part of the notch part and joining the two end faces of the notch part, and a plurality of joining pieces extend radially from the outer periphery of the inner ring part, By bending in the same direction and connecting to the outer ring part, when the load is applied in the same manner, the bent parts of each joint piece bend in the same direction, so that the axes of the inner ring part and the outer ring part are The outer diameter of the outer ring portion can be adjusted to an arc having a smaller flatness without moving. That is, regardless of the size of the inner diameter, it can be used for either PVC pipes or paper pipes, so manufacturers must manufacture only products of a type that matches the outer diameter of the sleeve pipe. In addition, cost reduction can be realized and inventory management is easy. However, on-site ordering and management is very easy for users, and economic efficiency is improved. In addition, since the nail can be inserted into the inner ring and the flange is formed along the outer circumference of one side of the outer ring, the sleeve tube can be easily and reliably attached to the formwork even in the installation work. Therefore, it is possible to obtain a practically useful construction sleeve tube support tool, for example, which can promote work efficiency.

[Brief description of the drawings]

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

FIG. 2 is an explanatory view showing a use state of the embodiment of the present invention.

FIG. 3 is a perspective view showing a use state of the embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional example.

[Description of Signs] 1 Outer ring 2 Flange 3 Through hole 4 Projection piece 5 Projection piece 6 Notch 7 Inner ring 8 Through hole 9 Joining piece A Sleeve tube B Formwork C Nail

Claims (1)

[Utility model registration claims] 1. An inner ring portion into which a nail can be inserted, a flange portion formed on one side along the outer periphery, an outer ring portion having a cutout portion provided coaxially with the inner ring portion, and a gap therebetween formed by a plurality of joining pieces. The support member for a construction sleeve tube, wherein the support member extends radially from the outer periphery of the inner ring portion and is bent in the same direction to be connected to the outer ring portion.