JP2002370201A - Processing material support device for bench cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily cut a processing material 10b having a height likely to generate a cut remainder part 14 without requiring an auxiliary plate 15. SOLUTION: In a bench cutter for supporting the processing material 10 onto a front face of a fence 3 by fixing a fence holder 24 onto an upper face of a base 1 to fit freely detachably a U shaped fence 3 of which the width varies in front and in rear to a fence holder 24, the fence 3 is reversed in front and in rear to vary a position for supporting the processing material 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work supporting apparatus for a table cutting machine such as a table circular saw.

[0002]

2. Description of the Related Art The prior art will be described with reference to FIGS.

A turntable 2 is rotatably fitted to the center of a base 1, and a circular saw 5 is supported above a rear part of the turntable 2 via a shaft 4 so as to be vertically swingable. A spring 19 for urging the upper part 5 is provided. The circular saw portion 5 is provided with a handle 6 for pushing down the circular saw portion 5 during cutting work, a drive motor (not shown), a circular saw 7 and the like, and these are held by the gear case 8. On the upper surface of the base 1, a fence 3 for supporting a work material is fixed by bolts 11. A stopper bolt 12 is screw-fitted behind the upper surface of the turntable 2,
The circular saw portion 5 is pushed down via the handle 6 and the gear case 8 is brought into contact with the stopper bolt 12 in the process of pushing down, thereby regulating the swing lower limit position of the circular saw portion 5.
By turning the stopper bolt 12 and changing the contact position with the gear case 8, the swing lower limit position of the circular saw portion 5 can be changed.

[0004] Using such a tabletop cutting machine, the work material 1
The workpiece is supported on the base 1 and the fence 3 on the base 1, the handle 6 is gripped, the power switch (not shown) provided on the handle 6 is pulled, and the circular saw 5 is pressed down to perform a cutting operation.

[0005] A conventional tabletop cutting machine cuts a square member 10b used for columns and frames and a wide member 10a used for floorboards. The cutting ability of the tabletop cutter increases the cutting width by lowering the circular saw 7 from the upper surface of the base 1 and increasing the distance between the outer diameter of the circular saw 7 and the upper surface of the base 1. Also, if the amount of sinking of the circular saw 7 from the upper surface of the base 1 is reduced, the cutting height is increased. In general, a tabletop cutting machine rarely cuts a large square bar 10b such as a pillar, and is used for cutting small materials of interior materials and floor boards. For this reason, the circular saw 7 is sunk more than the upper surface of the base 1 so as to be suitable for cutting a material that is frequently used for cutting, and the swing lower limit position of the circular saw 5 is set to correspond to the cutting of the wide material 10a. Is set. The surface of the fence 3 supporting the processing material 10 is arranged at a position corresponding to the cutting of the wide material 10a.

[0006] As described above, when a tabletop cutting machine mainly for cutting the wide material 10a or the like is required to perform a cutting process that requires a height direction, for example, a cutting process of a tall rectangular material 10b or the like, the height direction is required. In order to secure the cutting ability, the stopper bolt 12 is extended forward, the lower limit position of the circular saw portion 5 is raised, and the position is adjusted to a position where the cutting of the workpiece 10 is possible. Also,
By changing the swing lower limit position, the processing material 10 of the fence 3 can be changed.
A gap is formed between the surface that supports the circular saw 7 and the circular saw 7, and the uncut portion 14 is generated. In order to cope with this, an auxiliary plate 15 finished in parallel to the surface of the fence 3 supporting the workpiece 10 as shown in FIG. To prevent the remaining uncut portion 14 from being generated. As described above, the auxiliary plate 15 is attached or detached depending on the size of the workpiece 10.

[0007]

According to the size of the work material 10 and the cutting method, the auxiliary plate 15 is attached to and detached from the fence 3 with the countersunk screws 16 and the nuts 17, which requires a lot of work. Further, there is a possibility that the detached auxiliary plate 15, the flathead screw 16 and the like may be lost.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned disadvantages of the prior art and to ensure that a work material can be cut by a simple operation regardless of the shape of the work material.

[0009]

The object of the present invention is to fix a fence holder on an upper surface of a base and detachably attach a U-shaped fence having different widths in front and rear to the fence holder.
This is achieved by reversing the fence to change the support position of the workpiece.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
This will be described with reference to FIG.

FIG. 1 is a left side view of the tabletop cutting machine, and FIG.
FIG. 3 is a left side view showing a state in which wide material is cut, FIG. 4 is a left side view showing a state in which cutting is left, and FIG. 5 is a figure showing cutting a tall square material. It is a left view which shows the state which performs.

A turntable 2 is fitted to the center of the base 1 so as to be rotatable in the horizontal direction, and the upper surface of the turntable 2 is flush with the upper surface of the base 1. Turntable 2
Above the rear part, a circular saw part 5 is supported via a shaft 4 so as to be vertically swingable with respect to the upper surface of the base 1. A spring 19 that urges the circular saw 5 upward is provided on the outer periphery of the shaft 4. The circular saw portion 5 is provided with a handle 6, a drive motor 20, and a circular saw 7 for pushing down the circular saw portion 5 during a cutting operation, and these are held by a gear case 8. Behind the upper surface of the turntable 2,
When the handle 6 is depressed, the stopper bolt 12 which comes into contact with the gear case 8 is screwed into the stopper bolt 1
2, the swing lower limit position of the circular saw portion 5 is regulated. By turning the screwed stopper bolt 12 to change the contact position with the gear case 8, the swing lower limit position of the circular saw portion 5 can be changed.

As shown in FIG. 2, a circular saw shaft 21 is provided in the gear case 8 in the horizontal direction, and the circular saw 7 is fixed to one end of the circular saw shaft 21 with bolts 22. Drive motor 2
As is well known, a power transmission mechanism (not shown) such as a gear is provided between the circular saw 7 and the driving saw 20 to transmit power from the drive motor 20 to the circular saw 7.

A fence holder 24 is fixed to the upper surface of the base 1 with bolts 11, and the fence 3 is detachably fitted to the fence holder 24. The fence 3 has a distance from the first fence surface 13 a and the second fence surface 13 b to the mounting surface of the fence holder 24, that is, the first fence surface 13.
The thicknesses on the a side and the second fence surface 13b side are formed in different U-shapes. A first fence surface 13a used when a cutting capability in the cutting width direction is required, and a second fence surface 13b used when a cutting capability in the height direction is required
By removing the fence 3 above the fence holder 24 and inverting the fence 3 in the front-rear direction, the fence surfaces 13a and 13b supporting the work material 10 can be replaced.

The cutting operation is performed by using the upper surface of the base 1 and the first fence surface 13a or the second fence surface 13b.
The circular saw 7 is rotated by pulling the power switch provided on the handle 6 by grasping the handle 6 and pushing down the circular saw part 5 to the swing lower limit position where the stopper bolt 12 and the gear case 8 abut. It is done by that.

Normally, the swing lower limit position of the circular saw portion 5 is set mainly for cutting a wide material so as to be suitable for cutting a material which is frequently used for cutting as described in the prior art. Similarly, the fence surface supporting the workpiece 10 is also cut using the first fence surface 13a in order to secure the cutting ability in the width direction.

In the cutting process that requires a height direction, the stopper bolt 12 is pulled out so that the work material 10 and the gear case 8 come into contact with each other so that the work material 10 is not damaged.
The swing lower limit position is raised upward, and changed to a position where cutting can be performed. Further, the fence 3 is removed above the fence holder 24, and the second fence surface 13b is turned upside down to perform a cutting operation so that the second fence surface 13b becomes a surface supporting the workpiece 10.

When returning to the arrangement for cutting the wide material 10a, the stopper bolt 12 is returned so that the uncut portion 14 does not occur in the work material 10, and the fence 3 is removed from the fence holder 24 in the same manner as described above. This can be dealt with by replacing the fence 3 so that the surface 13a becomes a surface supporting the workpiece 10b.

[0019]

According to the present invention, the position of the surface supporting the work material can be easily changed by inverting and replacing the front and rear surfaces of the fence surface supporting the work material, and the cutting is performed without generating the uncut portion. be able to.

[Brief description of the drawings]

FIG. 1 is a left side view showing an embodiment of a desk cutting machine according to the present invention.

FIG. 2 is a front view of the desktop cutting machine of FIG. 1;

FIG. 3 is a left side view showing a state in which the wide member 10a is cut.

FIG. 4 is a left side view showing a state in which an uncut portion occurs.

FIG. 5 is a left side view showing a state in which a tall square bar 10b is cut.

FIG. 6 is a left side view showing a state in which a wide material is cut by a conventional tabletop cutting machine.

FIG. 7 is a left side view showing a state in which an uncut portion occurs in a conventional tabletop cutting machine.

FIG. 8 is a left side view showing a state where a square bar is cut by a conventional tabletop cutting machine.

[Explanation of symbols]

1 is a base, 2 is a turntable, 3 is a fence, 4 is a shaft, 5 is a circular saw, 7 is a circular saw, 13a is a first fence surface, 13b is a second fence surface, and 24 is a fence holder.

Claims (1)

[Claims] 1. A turntable which is rotatable in a horizontal direction is fitted to a base, and a circular saw portion is provided at the rear of the turntable so as to be vertically swingable on an upper surface of the turntable via a shaft. A fence holder is fixed to the upper surface of the base, and a U-shaped fence having different widths at the front and rear is detachably fitted to the fence holder, and the table cutting machine supports the work material on the front surface of the fence. A work material support device for a tabletop cutting machine, wherein the support position of the work material can be changed by causing the work material to be supported.