JP2001300819A - Portable band saw machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable band saw machine capable of easily and accurately performing cutting work in a dark work place by releasing an operator from troublesomeness of preparing another light and moving a light even in the dark work place. SOLUTION: A band saw 6 and the light 10 for simultaneously illuminating a contact point between the band saw 6 and a cutting object material 16 and a guide table 9 are arranged in a saw wheel base 5. The light 10 is lighted and put out by a light switch 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable band sawing machine for cutting a material to be cut by a band saw stretched on a saw wheel.

[0002]

2. Description of the Related Art Conventionally, there has been a stationary band sawing machine equipped with a light. However, a portable band sawing machine or a portable band sawing machine is mounted on a stand or the like to be fixed to a vertical shape and cut on a guide table. None of the so-called contour cutting band saws for cutting materials was equipped with a light. For this reason, in the cutting work in a dark work place, work was performed by illuminating the vicinity of the cutting location with another light, or cutting was performed in a dark state where the material to be cut could not be seen clearly.

[0003]

In the conventional portable band saw machine, it is necessary to prepare another light in order to make the work area brighter when the work place is dark, and it is troublesome to secure the power supply and turn the cord. Was. In general, when performing on-site cutting work, it is common to bring a band sawing machine to the cutting point of the material to be cut, and each time the light is illuminated with the light and the time required to move the light, There is a problem that a shadow of a hand or the like is formed on the material, a black line indicating the cutting position is not clearly seen, and it may be difficult to align the cutting position. The same applies to the so-called contour cutting in which a portable band saw is fixed to a vertical shape by a stand or the like and the material to be cut is cut on a guide table.

Further, in the cutting operation without using a light, since the cutting position of the material to be cut is difficult to see, it is necessary to work in an unreasonable posture such as being unable to cut straight or bringing a face close to the cutting area. There was a problem that had to be.

An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a portable band sawing machine capable of easily and accurately performing a cutting operation in a dark work place.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to simultaneously irradiate a band saw, a contact point between the band saw and the material to be cut, and a guide table, and to make the center of the traveling line of the band saw coincide with the central axis of the irradiated light. Is mounted in one of the saw wheel bases.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. 1 and 2 showing one embodiment.

[0008] At both ends of the housing 1 are provided saw wheels bases 4 and 5 for rotatably supporting the saw wheels 2 and 3, and a band saw 6 is stretched over the saw wheels 2 and 3. The saw wheel bases 4 and 5 are provided with band saw guides 7 and 8 for holding and guiding the band saw 6, and the saw wheel base 4 is provided with a guide table 9 for guiding the material 16 when cutting the material 16 to be cut. A motor 14 is provided in the housing 1, and the saw wheel 2 is rotated by the motor 14. A switch handle 11 is provided on the saw wheel base 4, and a switch 12 for rotating and stopping the motor 14 is provided on the switch handle 11.

In the saw wheel base 5, there are provided a band saw 6, a light 10 for simultaneously illuminating the contact point between the band saw 6 and the workpiece 16 and the guide table 9, and are turned on and off by a light switch 13 provided on the saw wheel base 5. It is turned off. Light 10
Are provided so that the central axis 10a of the light to be irradiated coincides with the traveling line of the band saw 6.

In the above configuration, when cutting the workpiece 16, the switch handle 11 is held by one hand, the auxiliary handle 15 is held by the other hand, and the switch 12 is operated to rotate the motor 14, that is, the band saw 6. And the material to be cut 16
Press and cut from above.

FIG. 2 shows a case where a portable band saw is used upright.
This will be described with reference to FIG.

A portable band saw machine is set up on a stand (not shown) or the like, and the band saw 6 is rotated.
The material to be cut 16 is placed thereon, and the material to be cut 16 is pressed against the band saw 6 and cut. At this time, the position of the light 10 is located above the guide table 9.

When the area around the workpiece 16 is dark, the user operates the light switch 13 to turn on the light 10, and conversely, when the area around the workpiece 16 is bright, the light switch 1 is used.
3 is operated, the light 10 is turned off, and work is performed.

As described above, the light 10 can be easily turned on and off according to the surrounding situation, and the workability can be improved. Further, since the central axis of the light emitted by the light 10 is made coincident with the center of the traveling line of the band saw 6, the following effects can be obtained.

That is, when irradiating the band saw 6 obliquely with another light, the shadow of the band saw 6 reflected on the workpiece 16 has a certain width, and the black line of the workpiece 16 is aligned with the band saw 6. There is a problem that it becomes very difficult to see.
On the other hand, when the center axis of the light to be irradiated is made coincident with the center of the traveling line of the band saw 6, the shadow of the band saw 6 reflected on the material 16 to be cut has only the width of the band saw 6, and only under the band saw 6, that is, only at the cutting position. Since no shadow is formed, the cutting operation is not hindered and accurate cutting can be performed.

[0016]

According to the present invention, a light for simultaneously irradiating the band saw, the contact point of the band saw and the material to be cut, and the guide table is provided above the band saw, so that another light can be prepared even when the work place is dark. It saves the trouble of moving. Also, depending on the irradiation position of the light, shadows of hands etc. are formed on the material to be cut, so that the black line indicating the cutting position does not become invisible well, and work in an unreasonable posture such as bringing the face close to the cutting area This makes it easier and more accurate to cut in dark work areas. In addition, a portable band saw machine is set up on a stand and fixed, and the same applies to contour cutting, which cuts the material to be cut on the guide table. A light is provided above the guide table, which is not affected by chips when cutting. Therefore, it is not affected by light failures.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a portable band saw according to the present invention.

FIG. 2 is a front view showing a state when the portable band saw according to the present invention is used upright.

[Explanation of symbols]

1 is a housing, 2 and 3 are saw wheels, 4 and 5 are saw wheel bases,
6 is a band saw, 7 and 8 are band saw guides, 9 is a guide table,
10 is a light, 10a is a central axis of light, 14 is a motor, 1
6 is the material to be cut

Claims (1)

[Claims] 1. A pair of saw wheels are rotatably supported on both ends of a housing and a pair of saw wheels having handles are provided. The band saw is stretched over the pair of saw wheels, and the band saw is pinched and guided by the pair of saw wheels. A portable band sawing machine provided with a band saw guide, provided with a guide table for guiding a material to be cut on one side of a saw wheel base, and rotating one of the saw wheels by a motor to cut the material to be cut with a band saw. And a light source mounted on one of the saw wheel bases so that the contact point of the workpiece and the guide table and the guide table are simultaneously illuminated, and the center axis of the illuminating light coincides with the center of the traveling line of the band saw. Band saw machine.