JP2912578B2 - Cutting tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool,
In particular, the present invention relates to a cutting tool that performs a cutting operation while holding a main body with both hands, such as a chain-only machine.

[0002]

2. Description of the Related Art Generally, there is widely known a chain-only machine that drives a blade chain to perform a grooving process.

In such a chain only machine, one switch is provided on the handle portion of the main body, and the drive motor is driven by turning on the switch with one hand grasped. I have.

[0004]

However, in the above-mentioned cutting tool, work can be performed even with the handle held by one hand, and in this case, the force is biased, so May deviate from the material to be processed and the processing accuracy may be degraded.

[0005] The present invention has been made in view of the above-described problems, and has as its object to provide a cutting tool that can perform work safely and comfortably.

[0006]

Means for Solving the Problems To achieve the above object,
Therefore, the invention according to claim 1 comprises a main body (1) and the main body (1).
A hand provided in (1) that can hold both left and right hands simultaneously
Handle portion (1a) and the handle portion (1a).
A cutting tool provided with a drive switch (4);
At least two drive switches (4) are provided.
One drive switch (4) is operated by left and right hands
Position, and all of the drive switches (4) are O
When N is set, the tool drive motor (31) is driven.
The main body (1) is provided with a blower (11).
And at least one of the switches (4) is driven by the blower.
Cutting tool that doubles as drive switch of motor (32)
The invention according to claim 2 comprises a main body (1) and
C provided on the main body (1) and capable of simultaneously holding both left and right hands
Handle portion (1a) and the handle portion (1a).
Cutting tool provided with a drive switch (4)
At least two drive switches (4) are provided.
The two drive switches (4) are operated by the left and right hands
And all of the drive switches (4)
Is turned on, the tool drive motor (31) is driven
So that the main body (1) has an outlet (21)
The outlet (21) is provided with the drive switch
When at least one of (4) is turned on, it can be energized
Use a cutting tool that is

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a chain-only machine, which is a cutting tool according to the present invention. In the figure, reference numeral 1 denotes a main body, in which components such as a drive motor 31 (see FIG. 2) are housed. Also, the main body 1
The guide shafts 2, 2 are provided below. A clamp mechanism 3 is provided at the lower end of the guide shafts 2, 2, and the main body 1 is configured to be able to move axially downward along the guide shaft 2. Handles 1a, 1a are formed on both sides of the main body 1, and switches 4, 4 are provided on both handles 1a, 1a so that the switching operation can be performed by a hand holding the handle 1a.
Further, as shown in FIG. 2, an unlock button 5 is provided on one of the switches 4, and the switch 4 cannot be pulled unless the unlock button 5 is operated.

FIG. 3 is a circuit diagram of a cutting tool according to the present invention. As shown here, the two switches 4, 4 are arranged in series, so that the drive motor 31 is not driven unless the two switches 4, 4 are turned on at the same time.

Therefore, when a cutting operation is to be performed, the two switches 4, 4 provided on the two handles 1a, 1a gripped by both hands are simultaneously turned on, so that the drive motor operates and the chain is turned on. The blade 6 rotates.
In this state, the main body 1 is lowered, and a groove is formed by the chain blade 6.

At this time, the drive motor does not operate unless the two switches 4 and 4 are turned on at the same time, so that the worker must always work while holding the two handles 1a and 1a with their hands. Therefore, work can be performed in a stable state, and a safe and reliable work environment can be provided.

FIG. 4 is a perspective view of another embodiment of a chain only machine as a cutting tool according to the present invention, and FIG. 5 is a rear view. The same members as those in the above-described embodiment are denoted by the same reference numerals, and detailed description will be omitted.

In this embodiment, a blower 11 is provided on the side of the main body 1, and the blower 11 is provided with a hose 12.
The outlet of the hose 12 is disposed in the vicinity of the processing position, and operates the blower 11 to blow off chips.
It is configured to scatter from the processing position. here,
As shown in the circuit diagram of FIG. 6, the drive motor 32 of the blower 11 is configured to be turned on by one of the two switches 4 and 4 being turned on.

Therefore, when a cutting operation is to be performed, the two switches 4, 4 provided on the two handles 1a, 1a gripped by both hands are simultaneously turned on, whereby the drive motor for the chain blade 6 is turned on. 31 and blower 1
The first drive motor 32 operates, the chain blade 6 rotates, and air is blown from the outlet of the hose 12. In this state, the main body 1 is lowered, and a groove is formed by the chain blade 6. At this time, since air is jetted from the hose 12, chips generated by the processing are scattered,
The operator can perform a comfortable cutting operation while easily checking the processing surface. Further, only one switch 4 connected to the drive motor 32 for the blower 11 is turned on before cutting.
By driving only the blower 11, the chips on the workpiece can be scattered and the black line can be easily seen.

FIG. 7 is a perspective view of another embodiment of a chain only machine as a cutting tool according to the present invention, and FIG. 8 is a rear view. The same members as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, an outlet 21 is provided in the main body 1, and a plug 22a of the dust collector 22 is connected to the outlet 21, so that the dust collector 22 can be electrically driven. Further, as shown in the circuit diagram of FIG. 9, the outlet 21 is configured to be turned on by one of two switches 4, 4 being turned on.

When a cutting operation is to be performed, the plug 22a of the dust collector 22 is connected to the outlet 21 provided in the main body 1 so that the dust can be collected. And
By simultaneously turning on the two switches 4 and 4 provided on the two handles 1a and 1a gripped by both hands, the drive motor 31 for the chain blade 6 operates and the chain blade 6 rotates. In this state, the main body 1 is lowered, and a groove is formed by the chain blade 6. At this time, switch 4
Is turned on, the dust collector 22 is operated, the chips generated by the processing are sucked, and the operator can perform a comfortable cutting operation while easily checking the processing surface. Further, a plug of a blower can be attached to the outlet 21.

In each of the above-described embodiments, the case in which the handle 1a formed on the main body 1 is two has been described. However, the present invention is not necessarily limited to the case in which the handle 1a is formed in two, and as shown in FIG. Two switches 4 and 4 may be provided.

[0018]

According to the present invention, since the two switches must be turned on at the same time when the cutting tool is driven, the operator must hold the handle with both hands. Work can be performed in a stable state, and safety is improved.

Further, when a blower is provided in the main body, or when an outlet is provided in the main body and a dust collector or the like is connected to the outlet, in addition to the above-described effects, the operator can recognize the processing surface without fail. Processing can be performed, and effects such as a comfortable processing environment can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cutting tool according to the present invention.

FIG. 2 is a partial rear view of the cutting tool according to the present invention.

FIG. 3 is a circuit diagram of a cutting tool according to the present invention.

FIG. 4 is a perspective view of another embodiment of the cutting tool according to the present invention.

FIG. 5 is a partial rear view of another embodiment of the cutting tool according to the present invention.

FIG. 6 is a circuit diagram of another embodiment of the cutting tool according to the present invention.

FIG. 7 is a perspective view of another embodiment of the cutting tool according to the present invention.

FIG. 8 is a partial rear view of another embodiment of the cutting tool according to the present invention.

FIG. 9 is a circuit diagram of another embodiment of the cutting tool according to the present invention.

FIG. 10 is a partial perspective view of another embodiment of the cutting tool according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Main body 1a ... Handle 2 ... Guide shaft 3 ... Clamp mechanism 4 ... Switch 6 ... Chain blade 11 ... Blower 12 ... Hose 21 ... Outlet 22 ... Dust collector 31 ... Driving motor 32 ... Driving motor

Claims (2)

(57) [Claims] 1. A main body and both left and right hands provided on the main body.
And a handle that can hold the
Cutting tool with a driven switch
At least two drive switches are provided.
The drive switch is located at the position where you can operate it with your left and right hands
When all of the above drive switches are turned on,
The tool drive motor is driven, and the
A blower is provided, and at least one of the switches is
It is also used as a drive switch of the machine drive motor
And cutting tools. 2. A main body and both right and left hands provided on the main body.
And a handle that can hold the
Cutting tool with a driven switch
At least two drive switches are provided.
The drive switch is located at the position where you can operate it with your left and right hands
When all of the above drive switches are turned on,
The tool drive motor is driven, and the
Cents are provided, and this outlet is
Becomes energizable when at least one of them is turned on
A cutting tool characterized in that: