JP3314598B2 - Dust collector for cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting device for a cutting machine which is capable of efficiently collecting dust generated when cutting a workpiece in a cutting machine such as a table circular saw. Hereinafter, the cutting machine will be described as a tabletop circular saw.

[0002]

2. Description of the Related Art An example of a conventional tabletop circular saw dust collector will be described with reference to FIGS. The tabletop circular saw can swing about a fence 3 supporting a workpiece 2 fixed to the upper surface of a base 1, a hinge 4 provided behind the base 1, and a hinge shaft 5 provided above the hinge 4 as a fulcrum. , And a circular saw blade 7 that is rotationally driven by a motor (not shown) provided in the gear case 6 and whose upper half is substantially covered by the gear case 6. Chips generated when cutting the workpiece 2 are scattered in the tangential direction of the circular saw blade 7 by the rotation of the circular saw blade 7. The gear case 6 is provided with a chip guide wall 8 that collects the chips that have entered the gear case 6 at one location, and a chip discharge port 9 that discharges the chips collected by the chip guide wall 8 to the outside of the gear case 6. Have been. The chip discharge port 9 is connected to a dust suction hose 11 of a dust collector (not shown) via a dust collection adapter (hereinafter simply referred to as an adapter) 10. The adapter 10 is usually formed of an elastic body such as rubber to have a sealing effect.

[0003]

In the above-mentioned conventional dust collecting device, only the chips entering the gear case 6 can be collected, and the cutting of the circular saw blade 7 as shown by the arrow C in FIG. There is a drawback in that it is not possible to collect swarf scattered from the final end in the tangential direction of the circular saw blade 7 and to pass between the gear case 6 and the hinge 4, resulting in poor dust collection efficiency. SUMMARY OF THE INVENTION An object of the present invention is to enable not only chips entering a gear case but also chips scattered outside a gear case to be collected.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dust collecting adapter in which a hood having an opening connected to a swarf discharge port and an opening located on the hinge side alongside the swarf discharge port is provided on the swarf discharge port side. Can be achieved.

[0005]

1 and 2 show an embodiment of the dust collecting apparatus according to the present invention. The configuration excluding the adapter 20 is substantially the same as the conventional example shown in FIGS. The pipe-shaped adapter 20 is provided with an opening 21 connected to the chip discharge port 9 of the gear case 6, opened alongside the opening 21, and having an opening 22 located on the hinge 4 side.
Is provided.

[0006] Chips generated when cutting the workpiece 2 scatter as indicated by arrows A and B in the figure. As shown by the arrow B, the chips entering the gear case 6 are guided by the chip guide wall 8 and are collected by the dust collector through the chip discharge port 9 via the adapter 20 and the dust suction hose 11. As shown by the arrow A, the swarf scattered in the tangential direction of the circular saw blade 7 from the final cutting edge of the circular saw blade 7 by the rotation of the circular saw blade 7 to pass between the gear case 6 and the hinge 4 passes through the opening 22. The dust is collected by the dust collector from the hood 23 through the adapter 20 and the dust suction hose 11. As a result, the gear case 6
It is possible to collect not only the chips that have entered inside but also the chips that have scattered outside the gear case 6, thereby providing a comfortable working environment.

[0007]

According to the present invention, not only the chips entering the gear case but also the chips scattered outside the gear case can be collected, so that the dust collection efficiency is improved and the operator is comfortable. It is possible to provide a comfortable working environment.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view showing an embodiment of the dust collecting device of the present invention.

FIG. 2 is a partial cross-sectional side view showing a swing state of the gear case of FIG.

FIG. 3 is a partially sectional side view showing an example of a conventional dust collector.

FIG. 4 is a partial cross-sectional side view showing a swing state of the gear case of FIG. 3;

[Explanation of symbols]

1 is a base, 2 is a material to be cut, 4 is a hinge, 5 is a hinge shaft, 6 is a gear case, 7 is a circular saw blade, 8 is a chip guide wall, 9 is a chip discharge port, and 10 and 20 are dust collection adapters. , 11
Is a dust suction hose, 21 and 22 are openings, and 23 is a hood.

Claims (1)

(57) [Claims] A gear case rotatably supported above a hinge provided at the rear of the base, a cutting blade held so as to cover an approximately upper half of the gear case; A swarf discharge port for discharging swarf generated at the time of material cutting, and a pipe-shaped dust collecting adapter for connecting the swarf discharge port to a dust suction hose of a dust collector; In a cutting machine configured to collect dust by a dust collector via an adapter and a dust suction hose, an opening connected to a chip discharging port on the chip discharging port side of the dust collecting adapter and an opening located on the hinge side alongside the opening. A dust collector for a cutting machine, comprising a hood having: