JPS6079912A - Concrete cutter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to the construction of a concrete cutting machine that can freely cut concrete.

Conventionally, concrete has been cut by rotating a circular rotating blade equipped with a diamond tip, but the effective cutting depth of the rotating blade is limited by the radius of the rotating blade, and the radius is large. It was difficult to rotate the rotary blade due to the motor output and structure, so cutting could not be done very freely.

Moreover, since the drive shaft and holding direction of the rotary blade are perpendicular to the cutting direction, a circular rotary blade cannot be constructed structurally to be long in the cutting direction. It was a 411 building with drive sources such as electric motors installed.

This type of structure is convenient for cutting flat surfaces, but when cutting certain structures such as walls, the drive source such as an electric motor is located near the rotary blade, which becomes an obstacle and makes it difficult to cut. There were times when I was unable to do so.

Also, the rotary blade will rotate too close to hand,
There was a risk of injury to the hands when the cutting caused fragments to fly, such as when cutting concrete.

Furthermore, if the radius of the rotary blade is increased in order to increase the cutting depth, the drive source, such as the electric motor, will require an extremely large output, resulting in a structure that looks like a doll, which not only impairs portability but also poses problems in workability. This resulted in the occurrence of

The present invention has been made in view of these circumstances, and provides a concrete cutting machine that can arbitrarily and easily cut concrete 1 to 1 and has a high 111 hrl as a tool without impairing portability. The purpose is to

Hereinafter, the present invention will be explained based on an embodiment shown in the drawings. Fig. 1 is a perspective view showing an embodiment of the concrete cutting machine 1 to the cutting machine of the present invention, and Fig. 2 is a perspective view showing an embodiment of the concrete cutting machine of the present invention. It is an enlarged view of the main part showing the main part.

In FIG. 1, the concrete cutting machine is provided with a bow 2 configured such that a chain 21 rotates along its outer periphery, and an electric motor 3 is fixed to one end of the bow 2.
The check 21 is configured to be rotated by.

The electric motor 3 is provided with a handle 4.5, and an electric l13 and a chain 21 are connected near the handle 4.5, so that the electric motor 13 rotates the chain 21 along the bow 2. It is configured.

Further, the bow 2 is elongated forward from the handle 4.5, and a check 21 is disposed so as to cover the outer periphery of the bow 2.

In FIG. 2, a diamond chip 7 is formed on the outer periphery of an element 6 constituting the chain 21 by solidifying tie A7 diamond particles with a bond or the like.

In such a configuration, by driving the electric motor 3, the bow 2 rotates the chain 1, and by bringing the chain 21 into contact with the concrete, concrete can be cut. .

Since the chip 1 is equipped with a tie tip 7 on the outer periphery of the element 6, the diamond tip 7 can perform a cutting action on the concrete 1 to cut it. can.

Furthermore, since the check 21 is C-shaped along the outer periphery of the bow 2, the cutting depth can be made arbitrarily deep if the bow 2 is formed into a long shape.

Therefore, even if the thickness of the concrete 1 to be cut becomes large, it can be easily cut, and it is not limited to the instep surface, but can also be easily cut on uneven parts.

By applying a diamond dip 7 to the element 6 of such a check 21, the diamond particles will be bonded (=
It is only necessary to attach it to the outer periphery of the cord 6 by means of l, as long as it acts effectively on concrete.

The die (7mm chip 7) formed on the outer periphery of the element 6 is
When running on the outer circumference of the bow 2, the projected area in the cutting direction should be sufficiently large. It is sufficient if it is configured as follows.

The chain 1 is configured to rotate along the outer circumference of the bow 2, but since the bow 2 and the chain 21 generate strong friction horns during rotation, it is necessary to oil the chain 1. It is also possible to reduce frictional horns by forming the part that contacts the bow 2 into a roller.

That is, the chain 21 is constructed by connecting the elements 6 so as to swing with each other, but it is relatively easy to connect the contact portion of the connecting shaft with the bow 2 to a roller. By making the contact area rolling, the amount of oil poured can be reduced or eliminated.

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In addition to 't7L+1''/hII-1-, stone can also be cut in the same way as concrete 1~ in order to have a -U fi effect on hard materials such as stone.

Furthermore, by cutting in the longitudinal direction of the tip of the bow 2, it is possible to form a square hole by cutting four times, and it can be easily cut in parts made of various materials such as walls. C is created, and the effective cutting 1θi machine becomes −(・t).

The electric motor 3 may be used as the drive source, or the S1 engine may be used, and in either case, it can be turned off in the same way.

As explained above, according to the present invention, it is possible to easily cut hard materials such as concrete to I, etc., and there is no restriction on the shape of the cut part, and furthermore, there is no limit to the cutting depth. It can also cut deeply, and its effectiveness is extremely large.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of concrete cutting according to the present invention, and FIG. 2 is an enlarged view of the main parts thereof. 1... land, 2... bow, 3... electric motor,
7...Die A7 Mondo Chip. Patent applicant Shibaura Seisakusho Co., Ltd. @1 concave box

Claims (1)

[Claims] This concrete cutting machine is characterized in that a drive source is installed at one end of a bow, and a die is rotated along the bow, and a diamond tip is provided on the outer periphery of an element constituting the bow.