JP2009083332A - Portable electric saw - Google Patents

Abstract

An object of the present invention is to enable stable operation even when a long blade is used in a place where there is no depth without causing trouble during normal cutting.
A portable device having a motor, a reciprocating conversion mechanism for converting the rotation of the motor into a reciprocating motion, a saw blade 5 reciprocatingly driven by the reciprocating conversion mechanism, and a base 3 extending in a direction substantially perpendicular to the saw blade. A sub-base 6 is provided which is an electric saw and is connected to the base 3 and protrudes forward from the base 3.
[Selection] Figure 4

Description

  The present invention relates to a small portable electric saw (saver saw) base device for cutting small and thin objects used for cutting wood, steel, pipes, twigs, etc. in renovation of houses, demolition work and kitchen gardens. Is.

  There is a portable electric saw as a reciprocating cutting tool driven by an electric motor. As is well known, a portable electric saw generally has a reciprocating shaft (referred to as a plunger) equipped with a linear saw blade (hereinafter referred to as a blade) driven to reciprocate and cut by the blade.

  In a cutting operation using a portable electric saw, a cutting reaction force is generated in the reciprocating direction of the blade. Therefore, as shown in FIG. 1, the tip of the base fixing member 2 attached to the portable electric saw body 1 that is movable along the reciprocating direction of the blade 5 with the fixing bolt 4 is attached to the reciprocating direction of the blade 5. The base 3 is mounted in a substantially perpendicular direction so that the base 3 is pressed against the workpiece 10. By pressing the base 3 against the workpiece 10, the positions of the workpiece 10 and the blade 5 are kept constant, and workability is improved by receiving the cutting reaction force generated in the reciprocating direction of the blade 5. ing.

  Further, the fixing bolt 5 is loosened from the relationship between the size of the material 10 to be cut and the length of the blade 5, and the base fixing member 2 is moved back and forth to improve the cutting workability.

  Here, since the portable electric saw of the present invention is small and lightweight and can be operated in one hand, and is an electric type that changes to a manual type such as a saw, etc. is there.

  Due to the above structure, portable electric saws that are important for small size and light weight cannot increase the range of movement of the base fixing member, so when using long blades and cutting work in narrow spaces, the base should be cut. There is a problem that the stable cutting work cannot be done by pressing against.

  An object of the present invention is to prevent the workability from being deteriorated depending on the work place and the blade length used.

  The object includes a motor, a reciprocating conversion mechanism that converts the rotation of the motor into a reciprocating motion, a saw blade that is reciprocated by the reciprocating conversion mechanism, and a base that extends in a direction substantially perpendicular to the saw blade. This can be achieved by a portable electric saw that is provided with a sub-base separately from the base, and the sub-base is provided so as to protrude forward from the base.

  According to the present invention, it is possible to prevent the stable work by pressing the material to be cut against the base depending on the work place and the length of the blade to be used, so that the workability can be prevented from being lowered. And because it can perform stable work, it can be done with one hand.

  In addition, the size of the main body does not need to be increased normally, and the size and weight can be reduced.

  The present invention will be described below with reference to FIGS.

  The base 3 is fixed to the base fixing member 2, and the fixing member 2 is movable along the reciprocating direction of the blade 5, and is attached to the portable electric saw body 1 with fixing bolts 4. The base 3 is provided with a hole through which the blade 5 passes. Further, pipes 7 having screw holes for attaching the sub-base 6 are fixed to the left and right ends of the base 3. When a long blade 5 is used for cutting work at a narrow depth, the sub-base 6 having the fixing shaft 8 on the left and right is connected to the pipe 7 of the base 3 and the shaft 8 is moved to a position where the tip of the blade 5 does not hit the depth. The sub-base 6 is fixed to the front of the base 3 by inserting the thumbscrew 9.

  When working in a place that does not hinder the cutting work, the sub-base 6 is removed.

The principal part cross-sectional side view which shows an example of the conventional portable electric saw. Explanatory drawing which shows the normal cutting work state by the portable electric saw of FIG. Explanatory drawing which shows the unstable cutting work state by the portable electric saw of FIG. Explanatory drawing which shows the cutting work state by an example of this invention base apparatus. The top view which shows an example of this invention base apparatus.

Explanation of symbols

  1 is a portable electric saw body, 2 is a base fixing member, 3 is a base, 5 is a blade, 6 is a sub-base, 8 is a shaft, 9 is a thumbscrew, and 10 is a material to be cut.

Claims (2)

A motor,
A reciprocating conversion mechanism that converts the rotation of the motor into a reciprocating motion;
A saw blade reciprocally driven by the reciprocating conversion mechanism;
A portable electric saw having the saw blade and a base extending in a substantially vertical direction,
A portable electric saw having a sub-base connected to the base and protruding forward from the base.   The portable electric saw according to claim 1, wherein the sub-base is fixable to the base.

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