JP3057036U - Concrete formwork support - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support for a concrete formwork which has a simple structure, is low in production cost, and can easily and vertically support a concrete formwork without the need for advanced skills. . SOLUTION: A form supporting portion 10 detachably attached to a concrete form C, a reinforcing bar supporting portion 30 detachably attached to a reinforcing bar F, and attached between the form supporting portion 10 and the reinforcing bar supporting portion 30. And a telescopic part 20 that can be telescopically extended. The expansion / contraction unit 20 has a rotating body 20 having a right-handed female screw 22A formed at one end and a left-handed female screw 22B at the other end, and a right-handed male screw 24A attached to the base of the form support unit 10. And a left-handed male screw 24B attached to the base of the reinforcing bar support 30.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a support for a concrete formwork.

[0002]

[Prior art]

 Traditionally, highly skilled craftsmen have used their skills to vertically set up a number of concrete forms with no gaps.

[0003]

[Problems to be solved by the invention]

 However, vertical support of concrete forms requires highly skilled craftsmen.If the concrete forms are not fixed vertically, the space between the adjacent concrete forms or between the floor and the concrete forms is required. There is a problem that a gap is formed between the gaps and the concrete flows out from the gap. Further, since the concrete form has a weight of about 20 to 30 kg and is heavy, there is a problem that it takes a great deal of time to adjust the concrete form by slightly tilting the form.

[0004] In view of such circumstances, the present invention has a simple structure, is low in manufacturing cost, and is capable of supporting a concrete form easily and vertically without requiring a high level of skill, without the need for advanced skills. The purpose is to provide tools.

[0005]

[Means for Solving the Problems]

 A support for a concrete formwork according to claim 1 includes a formwork support section detachably attached to the concrete formwork, a rebar support section detachably attached to a reinforcing bar, the formwork support section and the rebar support section. It is characterized by comprising a telescopic part that can be telescopically attached between them. In the support for a concrete form according to claim 2, in the invention according to claim 1, the expansion and contraction portion has a pair of left and right female screws formed inside both ends in a longitudinal direction, one of the female screws is a right-hand screw, and the other is a right-hand screw. And a pair of right-handed male screws and left-handed screws respectively screwed to the rotating body having left-handed female screws and the pair of left and right female screws and respectively attached to the bases of the form support portion and the reinforcing bar support portion. And a male screw.

[0006]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a support for a concrete formwork of the present embodiment. FIG. 2 is a side view of the support of the concrete formwork of the present embodiment. As shown in FIGS. 1 and 2, the support for the concrete formwork of the present embodiment includes a formwork support portion 10, a telescopic portion 20, and a reinforcing bar support portion 30.

First, the form supporter 10 will be described. The form supporting portion 10 is for supporting a concrete form (not shown), and has a hole 12 for a nail formed at an appropriate position of the mounting plate 11. Although the form supporting portion 10 is made of iron, it may be made of stainless steel or aluminum, and various materials can be adopted.

Next, the expansion and contraction section 20 will be described. At the base of the mounting plate 11, a right-handed male screw 24A is mounted. Reference numeral 21 indicates a rod-shaped rotating body. A pair of female screws 22A and 22B are formed inside both ends of the rotating body 21 in the axial direction. The internal thread 22A is a right-hand thread, and the internal thread 22B is a left-hand thread. A right-handed male screw 24A is screwed into the female screw 22A of the rotating body 21. A left-handed male screw 24B is screwed into the female screw 22B of the rotating body 21.

In addition, a handle hole 23 is formed in the center of the rotating body 21. By inserting a rod-shaped rotating handle (not shown) into the handle hole 23 and rotating the rotating handle, the rotating body 21 can be rotated around its axis. If this rotating body 21 is rotated forward and backward around its axis, the external threads 24A and 24B move closer and further away. That is, the elastic part 20 expands and contracts. Although the rotating body 21 is made of iron, it may be made of stainless steel or aluminum, and various materials may be adopted.

Next, the reinforcing bar support 30 will be described. The male screw 24B of the expansion / contraction part 20 is pivotally connected to the base end of the main body 31 by a pin 33. A nut hole 34 is formed in the front part of the main body 31. A bolt 35 is screwed into the nut hole 34. A hole 36 for a handle is formed in the head of the bolt 35. By inserting a rod-shaped rotary handle (not shown) into the handle hole 36 and rotating the rotary handle, the bolt 35 can be advanced or retracted. The reinforcing bar support 30 is made of iron, but may be made of stainless steel or aluminum, and various materials may be adopted.

As described above, the support for the concrete formwork of the present embodiment has an effect that the manufacturing cost is low with a simple structure. The female screw 22A may be left-handed and the female screw 22B may be right-handed. In this case, male screw 24A may be left-handed and male screw 24B may be right-handed.

As shown in FIG. 3, a rotary handle 51 and a rotary handle 52 are attached to the handle hole 23 of the telescopic portion 20 and the handle hole 36 of the reinforcing bar support portion 30 in advance. May be. In this case, the labor for attaching and detaching the rotary handle can be saved, which is preferable.

Next, the operation and effect of the support of the concrete formwork of the present embodiment will be described. FIG. 4 is an explanatory view of the use of the concrete formwork support of the present embodiment. In the figure, reference sign C indicates a concrete formwork. A pin S is attached to the upper side of the concrete form C, and the upper end of the hanging thread y is attached to the pin S. A weight m is attached to the lower end of the hanging thread y. By looking at the distance between the hanging thread y and the side edge of the concrete form C, it can be confirmed whether or not the concrete form C stands upright.

As shown in FIGS. 1, 2 and 4, the reinforcing bar F is sandwiched between the main body 31 of the reinforcing bar support 30 and the shaft end of the bolt 35. Then, a rotating handle (not shown) is inserted into the handle hole 36, and by rotating the rotating handle, the bolt 35 is screwed to fix the reinforcing bar support portion 30 to the reinforcing bar F. On the other hand, a concrete form C is attached to the mounting plate 11 of the form supporting section 10 by driving a nail into the hole 12 for the nail of the form supporting section 10. When the concrete form C and the reinforcing bar F are separated from each other, the extension rod B may be used as shown in the figure. That is, one end of the extension rod B is attached to the attachment plate 11 of the form support part 10, and the other end of the extension rod B is temporarily nailed to the concrete form C with the nail K.

Then, by checking the distance between the hanging string y and the side edge of the concrete form C, it is confirmed whether or not the concrete form C stands upright. If the concrete form C is not standing upright, a rotating handle (not shown) is inserted into the handle hole 23 and the rotating handle is rotated to move the rotating body 21 of the expandable portion 20 around its axis. Then, the support of the concrete formwork of this embodiment is expanded or contracted. Then, the concrete form C is slightly inclined right and left according to the expansion and contraction of the concrete form support of the present embodiment, so that the angle of the concrete form C can be finely adjusted. Therefore, the concrete form C can be accurately erected vertically.

FIG. 5 is an explanatory view of use of the concrete formwork support of the present embodiment, following FIG. As shown in the figure, a second concrete form C is erected next to and adjacent to the concrete form C that was first erected accurately. A third concrete form C is erected next to and adjacent to the second concrete form C. By repeating this, a plurality of adjacent concrete forms C can be erected in a straight line. Since all the second and subsequent concrete forms C are erected on the basis of the first concrete form C, they can be erected accurately. Therefore, according to the concrete form support of the present embodiment, there is an effect that the concrete form C can be easily and vertically supported without much trouble without any high skill.

[0017]

[Effect of the invention]

 According to the concrete form support of the first aspect, when the expansion and contraction portion is expanded and contracted, the concrete form can be inclined right and left. For this reason, it is possible to easily support the concrete formwork vertically without much trouble, even without a high level of skill. According to the concrete form support of claim 2, when the rotating body is rotated forward and backward in the axial direction, the expansion and contraction portion can be expanded and contracted, so that the manufacturing cost is low with a simple structure.

[Brief description of the drawings]

FIG. 1 is a plan view of a support for a concrete formwork of the present embodiment.

FIG. 2 is a side view of the support of the concrete formwork of the present embodiment.

FIG. 3 is a plan view of a support for a concrete formwork of another embodiment.

FIG. 4 is an explanatory view of the use of the concrete formwork support of the present embodiment.

5 is an explanatory view of the use of the support for the concrete formwork of the present embodiment, following FIG. 4; FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Form support part 11 Mounting plate 20 Elastic part 21 Rotating body 22A Female screw 22B Female screw 24A Male screw 24B Male screw 30 Rebar support part C Concrete form F Reinforcing bar

Claims (2)

[Utility model registration claims] 1. A form supporter detachably attached to a concrete formwork, a rebar supporter detachably attached to a reinforcing bar, and a telescopic support attached between the formwork support and the rebar supporter. A support for a concrete formwork, comprising: 2. A rotating body in which a pair of left and right female threads are formed inside both ends in the longitudinal direction of the expansion and contraction section, one of the female threads is a right-hand thread, and the other is a left-hand thread. 2. The concrete mold according to claim 1, comprising a pair of right-handed male screws and left-handed male screws which are screwed into the female screws, respectively, and are respectively attached to the bases of the form support and the reinforcing bar support. Frame support.