JPH0646903U - Portable circular saw machine base - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a base of a portable circular saw machine, and an object thereof is to improve workability by devising a bottom surface of the base. A long groove 9 having a width d wider than a blade width c of the saw blade is provided on the extension line of the saw blade 1 on the bottom surface 6 of the base 5 on the side opposite to the traveling direction when cutting the work material 4. It was

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a base of a portable circular saw machine.

[0002]

[Prior art]

 A conventional portable circular saw machine will be described with reference to FIGS. As shown in FIG. 7, a conventional portable circular saw machine has a saw blade 1 driven by a motor (not shown), a saw cover 2 for covering the saw blade 1, a housing 3 incorporating the motor, and a lower portion of the housing 3. The base 5 is attached to the work piece 4, abuts against the work material 4, and guides the saw blade 1. Also, due to strength problems, there are some bases 5 formed of iron plates or the like, which are provided with uneven ribs 7 as shown in FIGS. 5 and 6 on each part of the bottom surface 6 of the work material. Basically, the bottom surface of the base 5 is flat.

[0003]

[Problems to be solved by the device]

 As shown in FIG. 8, when the work material 4 is cut in the direction of the arrow by the portable circular saw machine configured as described above, fluffing and burrs are generated on the upper surface of the cut portion. Since the bottom surface 6 of the base 5 of the prior art is a flat surface, it is suitable for cutting while crushing fluff and burr of the work material 4 that has occurred. For this reason, there are many problems that the work material 4 and the bottom surface 6 of the base 5 that have been crushed are scratched, and the base 5 is caught by fluff and burrs of the work material 4, which deteriorates workability. there were. Especially, when the work material 4 is a metal, the above-mentioned problems are remarkable. An object of the present invention is to eliminate the above-mentioned problems and improve the workability of a portable circular saw machine of this type.

[0004]

[Means for Solving the Problems]

 The above-mentioned object is achieved by providing a groove wider than the width of the saw blade on the bottom surface of the base on the extension line of the saw blade, behind the saw blade.

[0005]

[Action]

 The portable circular saw machine configured as described above does not come into contact with fluff and burrs generated on the work material during cutting, and the fluff and burr always pass through the groove provided at the rear end of the base. Get out.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. The other structure of the circular saw machine except the base 5 is similar to that of the above-mentioned conventional technique, and therefore its explanation is omitted. As shown in FIGS. 1 and 2, the base 5 of the circular saw machine of the present invention has a blade width of the saw blade 1 on the bottom surface 6 of the base 5 from the rear end b of the blade opening 8 to the rear end a of the base 5. A long groove 9 having a width d wider than c is provided. With the portable circular saw machine configured as described above, when the work material 4 is cut in the direction of the arrow as shown in FIG. 4, fluffing and burrs of the work material 4 generated on the upper surface of the cutting portion are caused by the base 5 It will inevitably pass through the inside of the long groove 9 and will not be crushed by the base 5. Therefore, it is possible to prevent the work 4 and the bottom surface 6 of the base 5 from being scratched and crushed by fluff and burrs of the work 4, and to prevent the base 5 from being caught. The same effect can be obtained even if the work material 4 is a metal.

[0007]

[Effect of device]

 According to the present invention, fluffs and burrs generated at the time of cutting do not get crushed by the base and always pass through the long groove of the base. Workability is improved.

[Brief description of drawings]

FIG. 1 is a bottom view of a base showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a portable circular saw having a base according to the present invention.

FIG. 4 is a partial plan view of FIG.

FIG. 5 is a bottom view of an iron plate base showing an example of a conventional technique.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a perspective view showing an example of a conventional portable circular saw machine.

FIG. 8 is a partial plan view of FIG.

[Explanation of symbols]

1 is a saw blade, 2 is a saw cover, 3 is a housing, 4 is a work material, 5 is a base, 6 is a bottom surface of the base 5, 7 is a rib, 8 is a blade opening, and 9 is a long groove.

Claims (1)

[Scope of utility model registration request] 1. A portable circular saw that cuts with a saw blade protruding downward from a base that slides on and guides a work material, the base being on the extension line of the saw blade, which is behind the saw blade in the cutting direction. A base for a portable circular saw machine, which has a groove on the bottom surface that is wider than the width of the saw blade.