JP3028810U - Separator end fold tool - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a separator end fold tool that can reduce the folding work of the end part of a separator after demolding. A folding tool (20) has an elongated overall shape,
A folded portion 21 having an action hole 23 opened at one end surface;
The handle portion 22 extends from the folded portion 21 to the other end. The action hole 23 has a diameter D1 slightly larger than the diameter D2 of the end male screw 5 of the separator, and also has a length L1 slightly smaller than the length L2 of the male end screw 5 of the separator. After the concrete is molded using the mold 1 and the mold 1 is removed, the operator manually holds the handle portion 22 of the folding tool 20 against the male screw 5 at the end of the separator 3 protruding from the surface of the concrete 13. By holding the action hole 23 in the male screw 5 at the end of the separator 3 and applying force vertically and horizontally.
Fold.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to concrete molding, and more particularly, to a folding tool for folding an end of a separator protruding from a surface of concrete after removing a formwork.

[0002]

[Prior art]

 A formwork used for concrete molding is roughly composed of a weir board as a face material, a separator for maintaining a space between the weir boards, and a supporting structure for supporting the weir board. The assembly is performed by using a mold clamping tool that is screwed into the screw parts formed at both ends of the separator. This formwork clamp is commonly referred to as a foam tie. The concrete is molded by driving the concrete into the space between the dams, protecting the concrete with a mold until the concrete hardens, and then removing the mold leaving the separator.

Depending on the type of separator, a separator having male threads on both ends may be used to attach a foam tie using these male threads, so the male threads on the end of the separator may be removed. It remains protruding from the concrete surface after molding. For this reason, after the concrete is formed, work is performed to remove the end of the separator as needed, and in the past, a method of hitting and breaking the end of the separator with a hammer was used for this work.

[0004]

[Problems to be solved by the device]

 However, hitting the end of the separator with a hammer and breaking it is very time-consuming, and raising and lowering a heavy hammer is also dangerous. Therefore, an object of the present invention is to provide a separator end fold tool that can reduce the work of folding the end of the separator after demolding and improve the safety and efficiency of the work.

[0005]

[Means for achieving the object]

 In order to achieve such a technical problem, according to one aspect of the present invention, there is provided a separator end-folding tool for folding an end part of a separator protruding from a concrete surface after concrete molding. A working hole having an elongated shape and having a diameter slightly larger than the diameter of the end portion of the separator and a length dimension capable of receiving at least most of the end portion of the separator is formed on one end surface thereof. The other end side is a handle portion held by an operator.

An operator can fold the end portion of the separator by holding the handle portion, inserting the action hole into the end portion of the separator, and exerting a force to the left, right, up, and down. Since this separator end fold tool has an elongated shape, when a force is applied to the handle portion gripped by the operator, a force larger than this force acts on the end portion of the separator, and the separator folds off. It is possible to reduce the work of folding the separator after molding and improve the work safety and efficiency.

In another aspect of the present invention, a mold fastening tool is attachable, and the mold fastening tool is diverted as a handle portion. Specifically, a working hole having an opening on one end face and having a diameter slightly larger than the diameter of the end portion of the separator and a length dimension capable of receiving at least most of the end portion of the separator; Adopting a configuration having a male screw that projects outward from the end face and that can be screwed into the screw hole of the mold clamp, and attach the mold clamp to this male screw, This is used as a handle.

[0008]

【Example】

 Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a formwork 1 known from the prior art. The formwork 1 is roughly composed of a weir board 2 (in the drawing, the weir board placed on one surface is shown, and the weir board placed on the other surface is omitted) and the weir board 2. It is composed of a separator 3 for holding a space and a pipe 4 for supporting the weir plate 2.

In this embodiment, the separator 3 is made of a round bar steel material having a diameter of 6 mm and has male screws 5 at both ends. The weir plate 2 is fixed by using a fastener 6 and a mold clamp 7 which are both screwed into the male screw 5 of the separator 3. That is, the stopper 6 is arranged adjacent to the inner side surface of the weir plate 2. On the other hand, the form clamp 7 generally called a foam tie has a tip flange 8 and a screw hole portion 9 that opens in the center of the flange 9 and extends in the axial direction. The male screw 9 of the separator 3 is screwed onto the separator 9, so that the weir plate 2 is tightened.

FIG. 1 shows an example in which a pipe 4 is used as a support work. The mold clamp 7 includes a stopper member 10 that straddles two adjacent pipes 4 and engages with the pipe 4, and a male screw portion 11 extending from an outer end of the mold clamp 7 to a central portion. The nut 12 is screwed to the male screw portion 11, and by tightening the nut 12, the stopper member 10 is firmly locked to the pipe 4.

The formwork 1 is removed after the concrete 13 poured into it has hardened. As can be understood from FIG. 1 and FIG. 2, after the mold is removed, the male screw 5 portion of the separator 3 remains in a state of protruding from the surface of the concrete 13.

FIG. 2 shows a separator end folding device 20 according to an embodiment of the present invention. The folding tool 20 has an elongated shape as a whole, and includes a separator folding portion 21 formed on one end side and a handle portion 22 extending from the folding portion 21 to the other end. The folding portion 21 has an action hole 23 that opens in one end surface of the folding tool 20 and extends in the axial direction. The diameter D1 of the working hole 23 is slightly larger than the diameter D2 of the male screw 5 of the separator 3, and the length dimension L1 of the working hole 23 is not particularly limited, but uniform folding work can be performed. In doing so, it is desirable that the length of the portion of the separator 3 protruding from the concrete 13 is slightly shorter than the length dimension L2.

At least the folded portion 21 of the folding tool 20 is made of a material harder than the separator 3, for example, a superhard material. The handle portion 22 is preferably integrally formed of the same material as the folded portion 21, and the outer peripheral portion may be covered with any material such as wood or plastic.

The operator works by gripping the handle portion 22 of the folding tool 20. In this work, first, the action hole 23 of the folded portion 21 is inserted into the male screw 5 of the separator 3 protruding from the surface of the concrete 13. FIG. 2 shows this state, and as can be seen from the figure, the tip surface of the folding tool 20 is slightly separated from the surface of the concrete 13. Next, the operator arbitrarily moves the folding tool 20 up, down, left and right in a manner of bending the male screw portion 5 of the separator 3. The force applied to the handle portion 22 of the folding tool 20 by the operator becomes a larger force and is applied to the separator 3. This can be easily understood by considering the moment. When the folding tool 20 was actually made and an experiment was conducted, the end male screw portion 5 of the separator 3 could be folded by repeating the upper, lower, left and right operations once or twice.

FIG. 3 shows a folding device 30 according to a second embodiment of the present invention. The folding tool 30 has substantially the same structure as the folding tool 20 of the first embodiment except for the handle portion 22. Therefore, the same elements as those of the folding tool 20 of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. Only the characteristic portions of the present embodiment will be described.

The folding tool 30 has a male screw portion 31 protruding rearward from the rear end face of the folding portion 21, and the male screw portion 31 extends on the same axis as the action hole 23. The male screw portion 31 is made to have a diameter dimension that is screwed into the screw hole portion 8 of the mold clamp 7, and when the separator 3 is folded using the fold tool 30, the fold tool 30 is used. By attaching to the attachment 7, the form fastener 7 can be used as a handle portion.

According to the second embodiment, since the mold clamping device 7 is used as the handle, the amount of expensive cemented carbide material used in manufacturing the folding device 30 can be reduced and the manufacturing cost can be reduced. It can be kept low.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing the overall structure of a conventionally known mold.

FIG. 2 is a side view of a separator end folding device according to an embodiment of the present invention, showing a partial cross section.

FIG. 3 is a side view of a separator end folding device according to another embodiment of the present invention, showing a partial cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork 3 Separator 5 End male screw part of separator 13 Concrete 20 Separator end part folding tool 22 of the first embodiment 22 Handle part 23 Working hole 30 Separator end part folding tool 31 of the second example 31 Male screw part

Claims (7)

[Scope of utility model registration request] 1. A separator end-folding tool for folding an end portion of a separator protruding from the surface of concrete after concrete molding, which has an elongated shape as a whole, and is open at one end surface thereof and which is It has a working hole having a diameter slightly larger than the diameter of the end portion and a length dimension capable of receiving at least most of the end portion of the separator, and the other end side is a handle portion gripped by an operator. Separator end fold tool characterized by being. 2. The separator end fold according to claim 1, wherein the separator end fold is made of a material that is harder than the end portion of the separator. 3. The separator end folding device according to claim 1, wherein the working hole has a length dimension slightly smaller than a length dimension of an end portion of the separator protruding from a surface of concrete. 4. A male screw for attaching a mold clamp is formed at an end portion of the separator.
The separator end part folding tool according to any one of claims 1 to 3. 5. A separator end part folding tool for folding an end part of a separator projecting from the surface of concrete after concrete molding, which is open to one end surface and has a diameter slightly larger than the diameter of the end part of the separator. And an action hole having a length dimension capable of receiving at least most of the end portion of the separator, and an outwardly projecting end hole from the other end surface and screwed into a screw hole of the mold clamp. A separator end fold tool having a male screw. 6. The male screw of the separator end fold tool comprises:
Extending on the same axis as the screw hole of the mold clamp,
The separator end part folding tool according to claim 5. 7. The separator end folding device according to claim 5, wherein the working hole has a length dimension slightly smaller than a length dimension of an end portion of the separator protruding from a surface of concrete.