JPH056010Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a tabletop circular saw cutting machine having an angle-determining stopper.

[Background of the idea]

The prior art will be explained using FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, and FIG. 6. The tabletop circular saw cutting machine presses a workpiece 3 against a fence 2 fixed on a base 1, and presses a workpiece 3 against one end of a hinge 5 disposed on a turntable 4 rotatably fitted to the base 1. The work material 3 is cut by pushing down a circular saw blade 9 which is rotatably driven in the direction of arrow C by an electric motor 8 attached to an outer frame 7 which rotates in the direction of arrow B about a shaft 6 provided. be. The tabletop circular saw cutting machine not only cuts the workpiece 3 at right angles, but also rotates the turntable 4 diagonally, as shown in FIG. There are many opportunities to cut by changing the angle. For this reason, many tabletop circular saw cutting machines are equipped with an angle stopper device that can automatically position the cutting angle. The angle stopper device operates at 0° (right angle) and 45° left and right.

Such an angle stopper device, as shown in FIG.
Consists of 2. The steel ball 10 is always pressed against the base 1 by a spring 11 placed in the turntable 4, and moves together with the turntable 4 when it is rotated. As shown in FIG. 5, the stoppers 12 are provided at 0° and at 45° left and right to receive the steel balls 10 that move as the turntable 4 rotates. When the turntable 4 is rotated by holding the handle 14,
Since the steel ball 10 fits in the stopper 12 at the position of 0° and 45° left and right, the cutting angle is 0° or left and right.
At 45°, the angle can be set with a single touch.
However, when cutting is performed using a tabletop circular saw cutting machine equipped with the above-mentioned angle stopper device, chips from the workpiece 3 enter the inside of the turntable 4, so chips accumulate on the top surface 1a. do. When the turntable 4 is rotated from this state, the stopper 12 is blocked by the accumulated chips, and the angle stopper device does not work.

[Purpose of invention]

An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a tabletop circular saw cutting machine with excellent functionality and workability.

[Summary of the idea]

The present invention focuses on the fact that if chips from the work material are allowed to pass through to the underside of the base, they will not accumulate on the upper surface of the base, and the shape of the stopper is devised to achieve the above-mentioned purpose.

[Example of idea]

An embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 1, the steel ball 10 is always pressed against the upper surface 1a of the base 1 by a spring 11 inserted into the turntable 4, as in the conventional example, and is mounted in such a way that it moves in conjunction with the rotation of the turntable 4. ing.

The stopper 12 has a hole shape and is provided on the upper surface 1a of the base 1 at 0° and 45° left and right positions, respectively.

When the workpiece material 3 is cut with the tabletop circular saw cutting machine having the above-mentioned angle stopper device, the chips that have entered the inside of the turntable 4 pass through the stopper 12 hole and escape to the bottom side of the base 1. For this reason, no chips are accumulated at the angle stopper position, and when the turntable 4 is rotated, the angle stopper device works reliably at the angle of 0° and the left and right positions of 45°. Therefore, functionality and workability are improved compared to the conventional method.

In this embodiment, the positions of the angle stoppers have been described as being 0° and 45° left and right, but the positions of the angle stoppers may be increased or decreased.

[Effect of idea]

According to the present invention, the shape of the stopper is made into a hole that is passed through the stopper so that the chips of the workpiece can escape to the lower side of the base, so that there is no accumulation of chips at the angle stopper position. Therefore, the functionality and workability of the tabletop circular saw cutting machine are improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the portion around the base of the cutting machine of the present invention. Figures 2 to 6 show a conventional cutting machine, with Figure 2 being an overall side view, Figure 3 being a plan view of the area around the base, Figure 4 being a vertical sectional view of the area around the base, and Figure 5 being a cross-sectional view of the area around the base. 6 is a plan view around the base when cutting at a right angle, and FIG. 6 is a plan view when cutting at an angle. 1 is a base, 1a is an upper surface of the base, 2 is a fence, 4 is a turntable, 10 is a steel ball, 11 is a spring, and 12 is a stopper.

Claims (1)

[Scope of utility model registration request] A base having a stopper for angular positioning, a turntable rotatably attached to the base, and a spring held between the turntable and the base and pressed against the base surface by a spring housed in the turntable. 1. A tabletop circular saw cutting machine equipped with a steel ball which is interlocked by the rotation of the turntable, characterized in that the stopper of the base is shaped like a hole and penetrates through it.