JPH08158648A - Cutting tool for concrete form space holding metal fitting - Google Patents

Abstract

PURPOSE: To provide the inexpensive cutting tool extremely simple in structure, which can be engaged with the exposed section to be removed of the rising piece of a space hold fitting, and thereby can rock and cut the rising piece by a simple operation with slight force applied. CONSTITUTION: The cutting tool is made up of a chuck section 2 provided with an engaging groove 1 roughly in a U shape the opening section of which is directed downward, a shaft section 3 which is perpendicularly intersected with the groove direction of the engaging groove 1 in a U shape, and is extended in the inclined upward direction from the chuck section 2, and of a grip section 4 formed at the end section of the shaft section 3. The engaging groove 1 of the chuck section 2 is formed in a dimension that the groove can be firmly inserted into the outer rising piece 6 of a concrete form space hold fitting 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for cutting and removing unnecessary portions of a concrete form spacing metal fitting which is exposed from concrete after construction.

[0002]

2. Description of the Related Art Conventionally, when a foundation concrete of a building is constructed, a concrete form spacing metal fitting 5 made of a metal plate as shown in FIG. 6, for example, has been used. As shown in FIG. 4, this gap holding fixture is fixed to the base 8 with nails 7, and the concrete formwork 10 is fitted between the outer rising piece 6 and the inner rising piece 9 so that the space between the left and right concrete forms Serves to hold. After the concrete 11 is installed between the left and right concrete forms, the exposed portions at both ends of the spacing metal fitting 5 are gripped with pliers or the like and repeatedly rocked up and down, or a bar is inserted into the hole of the external standing piece to insert a lever. It is cut and removed from the root part by operating as shown.

[0003]

However, the work of grasping with the pliers or inserting the rod and swinging the rod requires a force and is very troublesome.
Many cuts and removals that occur at construction sites require a lot of time and effort. Further, in the past, there was no suitable tool for cutting and removing the unnecessarily exposed portion of the concrete form spacing holding fixture.

Accordingly, the present invention provides a cutting tool which can be swung by engaging with a rising piece of an exposed portion of a spacing metal fitting to be removed with a simple operation and with a light force, with an extremely simple structure and at a low cost. The main purpose is to provide

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, in the cutting tool according to the present invention, the chuck portion 2 having the substantially U-shaped fitting groove 1 with the opening facing downward, and the groove direction from the chuck portion 2 to the U-shaped fitting groove 1 are provided. It is composed of a shaft portion 3 which is orthogonal to and extends obliquely upward and a grip portion 4 formed at an end portion of the shaft portion 3, and the fitting groove 1 of the chuck portion is provided on an outer side of the concrete form interval holding metal fitting 5. The lifting piece 6 has such a size that it can be inserted with little rattling.

[0006]

[Function] In the cutting tool configured as described above,
After the concrete work, as shown in FIG. 4, the groove 1 of the chuck portion 2 is fitted into the outer rising piece 6 of the spacing metal fitting 5 exposed from the concrete, and is swung up and down as shown in FIG. Unnecessary parts are cut and removed from the base.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a cutting tool according to the present invention will be described below based on an embodiment shown in the drawings. As shown in FIGS. 1 to 5, a cutting tool according to the present invention includes a chuck 2 having a substantially U-shaped fitting groove 1 with an opening facing downward,
The shaft portion 3 extends obliquely upward and orthogonal to the groove direction of the U-shaped fitting groove 1 from above, and a grip portion 4 formed at an end of the shaft portion 3. The fitting groove 1 of the chuck portion is formed in such a size that it can be inserted into the outer rising piece 6 of the concrete formwork space holding metal fitting 5 with little rattling.
It is preferable that the width of the front surface of the chuck portion 2 is formed to be substantially equal to the width of the left and right sides of the externally rising pieces 6 of the concrete frame spacing metal fitting 5. Thereby, the external rising piece 6 can be grasped without waste and reliably.

The chuck portion 2 and the shaft portion 3 are formed of a metal or alloy material having strong physical strength. The connection between the chuck portion 2 and the shaft portion 3 may be performed by welding, screwing, or any other means capable of strongly connecting the two together.

In the cutting tool constructed as described above, after the concrete is constructed, as shown in FIG. 4, the groove 1 of the chuck portion 2 is fitted into the outer rising piece 6 of the spacing member 5 exposed from the concrete, As shown in FIG. 5, the portion that does not need to be exposed of the spacing member 5 is cut and removed from the root portion by swinging up and down.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only the structures of the embodiments, but has the structural requirements and achieves the object of the present invention. However, the present invention can be appropriately modified and implemented within a range in which the following effects can be obtained.

[0011]

As is clear from the above description of the embodiments,
In the cutting tool of the present invention, the fitting groove of the chuck portion can be easily fitted into the external rising piece of the space holding bracket exposed from the concrete with little rattling,
With this chuck part, it is possible to securely grasp the external start-up piece of the space retainer and swing it up and down, and by grasping the grip part at the end of the shaft part that extends obliquely upward from the chuck part, it is lighter due to lever application It can easily be repeatedly oscillated by force, which makes it possible to easily cut and remove the exposed portion of the gap retainer from the root, and in addition, due to the extremely simple structure of the approximately U-shaped chuck and shaft. There is an effect that it can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a side view of a cutting tool according to the present invention.

FIG. 2 is a front view of the cutting tool.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a cross-sectional view showing a usage state of the cutting tool.

FIG. 5 is a sectional view showing a use state of the cutting tool.

FIG. 6 is a perspective view showing an example of a concrete formwork space holding metal fitting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fitting groove 2 Chuck part 3 Shaft part 4 Grip part 5 Concrete form spacing metal fitting 6 External rising piece of concrete form spacing metal fitting

Claims (1)

[Claims] 1. A substantially U-shaped fitting groove having an opening facing downward.
(1) a chuck portion (2), a shaft portion (3) extending obliquely upward from the chuck portion (2) orthogonally to the groove direction of the U-shaped fitting groove (1), and a shaft portion ( 3) and a grip portion (4) formed at an end of the chuck portion, and the fitting groove (1) of the chuck portion is loosely fitted to the externally rising piece (6) of the concrete form spacing metal fitting (5). This is a cutting tool for concrete formwork spacing metal fittings that are dimensioned so that they can be inserted in a small amount.