JP2013146816A - Compact bandsaw cutting auxiliary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact bandsaw cutting auxiliary device allowing the correct and safe cutting of a material to be cut, and improving working efficiency during the repeated use of a portable mode and an installation mode.SOLUTION: A shaft 5 orthogonal to a side surface of a bandsaw 13 is provided at a front of a compact bandsaw 8. A range for cutting by the bandsaw is supported so as to be turnable around the shaft at the outside of a right end of a material installation table 1. Furthermore, a shaft receiving base 2 allowing the shaft to be freely attached and detached is provided.

Description

  The present invention relates to a cutting aid for a small band saw.

  In general, a dedicated cutting machine is required to cut round pipes, angle steel, various steel materials, etc. made of metal, etc., so work efficiency is poor at the construction site etc. by transporting the cutting machine, etc. In addition, in a conventional cutting machine using a circular saw, the sparks fly off during cutting and the use is restricted at the work site. As an example of the disclosure related to the present invention, there is an example in which a cutting blade is a band saw and a battery is provided for carrying (for example, see Patent Document 1). Moreover, there is an example of a cutting tool provided with a base stand on which a cutting blade is a circular saw and a workpiece is placed (see, for example, Patent Document 2).

JP 2007-090458 A JP 2010-214536 A

  The conventional one such as the portable band saw disclosed in Patent Document 1 can be cut while supporting a cutting material such as a pipe by hand at a construction site or the like. However, the cutting material cannot be accurately cut and is unstable. there were. Patent Document 2 is an example of a conventional portable cutting tool in the case of a circular saw provided with a base for supporting a cutting material. In addition to these examples, there is no disclosure of an example in which the cutting blade is a band sort and includes a material mounting base. The present invention solves these problems.

A small band saw with a rotating band saw, motor, battery, and handle, a shaft perpendicular to the side surface of the band saw to be used for cutting the band saw, and a detachable means at the front of the frame of the small band saw A shaft receiving base that is rotatably supported around the shaft by the shaft support means, and a material installation base provided with a V-shaped groove in the longitudinal axis direction. The shaft axis direction is arranged in parallel to the left and right longitudinal axis direction of the material installation table, and the range used for cutting the band saw is outside the right end portion of the material installation table in the left and right longitudinal axis direction. The small band saw cutting assisting device is characterized in that the shaft cradle is disposed so as to be positioned at the position.

In addition, the small band saw cutting assisting device is characterized in that the shaft support means of the shaft pedestal is provided so that the shaft is detachable.
A small band saw cutting characterized in that the shaft support means of the shaft pedestal is provided with a hole for detachably locking and supporting the shaft in the longitudinal direction of the material installation table. Auxiliary equipment.
Alternatively, the shaft support means of the shaft pedestal supports the shaft end portion so as to be detachable, and is rotatable about an axis perpendicular to the longitudinal direction of the material installation table. A small band saw cutting assisting device comprising a pin and a U-shaped groove provided in the longitudinal direction of the left and right longitudinal axis of the material installation table for detachably supporting a shaft groove provided on the shaft front end side.

The material installation base is provided with a V-shaped groove in the longitudinal axis direction, and the V-shaped surface portion is provided with the ends of the both sides being installed with the apexes of the equilateral mountain-shaped steel facing upward and the both side ends facing downward. A small-sized band saw cutting assist device characterized by providing a symmetrical groove.

Further, the attaching / detaching means provided in the front part of the frame of the small band saw is constituted by a female screw, and a shaft provided with a male screw is freely mountable. A small band saw cutting auxiliary device characterized in that it can be used.

In addition, in the front view, a small band saw cutting auxiliary device is provided, in which a material fixing vice is provided on the right side in the longitudinal axis direction of the material installation table.

In addition, a small band saw cutting auxiliary device is characterized in that a support base for supporting the small band saw is provided at a lower right front surface of the material installation base.

  The cutting material can be cut accurately and safely by attaching and using a small band saw to the cutting assisting device of the present invention. In addition, work efficiency is further improved when the portable device and the installation device are used repeatedly. Furthermore, the cutting with the band saw, which is a feature of the band saw, does not produce a spark when cutting like a circular saw blade, and can be used safely at construction sites. In addition, the cutting assisting device of the present invention can cut round pipes, angle steels, various steel materials, etc. in spite of its small size, and is very easy to carry and the working efficiency is remarkably increased.

The small band saw cutting auxiliary device front perspective view and explanatory drawing of a small band saw of the present invention. The back perspective view and explanatory drawing of a small band saw. The material auxiliary installation stand front perspective view. The material installation stand and material auxiliary installation stand usage explanatory diagram. Explanatory drawing of auxiliary material for cutting large angle steel. The whole explanatory view when cutting angle iron. Small band saw back and material cutting explanatory drawing. Explanatory drawing of the other Example of a shaft receiving stand.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view of a small band saw cutting assist device according to the present invention as viewed from the front right and an explanatory view of the small band saw, and FIG. 2 is a perspective view from the rear left and an explanatory view of the small band saw. A V-shaped groove is provided on the upper surface of the material mounting table 1 in the left-right direction when viewed from the front. On the V groove surface, a material made of metal or the like, such as a round pipe, a square, or a rectangle, is placed so as to fit on the upper surface of the V groove.

AA, BB, CC, and DD grooves are provided on both sides of the V-groove so that they can be installed with the apex of the equilateral chevron facing up and both ends of the equilateral side facing down. . In this example, AA is an equilateral mountain-shaped steel installation groove with a side of 20 mm, BB is an equilateral mountain-shaped steel installation groove with a side of 25 mm, CC is an equilateral mountain-shaped steel installation groove with a side of 30 mm, and DD is an equilateral mountain-shaped steel with a side of 40 mm. Groove E is the bottom of the V-shaped groove.
Of course, this groove can also be used to install unequal angle irons.

The material to be cut is placed on the material setting table 1 and the vise 4 attached to the right side of the material setting table 1 as viewed from the front is operated to fix the material. The small band saw 8 includes a battery 10, a handle 11, a motor 12, and a band saw 13, and the material is cut by rotating the band saw shown by 13 and 13a in FIG.

FIG. 1 and FIG. 2 show an installation process of the small band saw 8 on the material installation table 1. The shaft 5 is attached to the shaft mounting female screw 9 of the small band saw 8, inserted into the hole 22 of the shaft cradle 2, inserted until protruding from the shaft cradle 2, and inserted into the pine needle pin mounting hole 16 for retaining the shaft 5. A pine needle pin 15 is inserted to prevent the shaft 5 from coming off.
A small band saw 8 attached to the shaft cradle 2 is rotatable about the shaft 5.

In FIG. 3, the front perspective view of the material auxiliary | assistant installation base 21 is shown. FIG. 4 shows an overall view using the material auxiliary installation base 21. The material auxiliary installation base 21 is provided with V-grooves in the same manner as the material installation base 1, and grooves AA, BB, CC, and DD are formed on both sides of the V-groove according to the standard of angle steel. Provide.

After the long material of the equilateral angle steel 20 is installed in the groove D of the material installation table 1, the material is used in accordance with the length of the material installed on the material installation table 1 in the V groove of the material auxiliary installation table 21. Thereby, a long material can be supported stably, and the material installed on the material installation stand 1 can be cut.

FIG. 5 shows the auxiliary material 30 for cutting when the large angle steel 31 is cut. The auxiliary material for cutting 30 is a quadrilateral whose cross section shown in the figure is unequal, and the auxiliary material for cutting 30 is placed using the sides of the V groove, the angled steel groove, and the V-shaped groove bottom E to stabilize the angled steel 31. And fix.

FIG. 6 shows an overall view when the angle steel is cut. As an example of processing, the equilateral angle steel 20 is installed in the groove D of the material setting table 1, fixed with the vise 4, and the small band saw 8 rotating around the shaft 5 is operated downward to cut the equilateral angle steel 20. .

FIG. 7 is a view of the small band saw 8 as viewed from the bottom. The band saws 13 and 13a are rotated by the motor 12 of the small band saw 8 of FIG. As shown in the figure, a space is provided in the range of the saw blade 13 used for cutting, and the material fixed to the material installation base 1 is cut using this space. Since the surface of the saw blade in the range of the saw blade 13 used for cutting rotates perpendicularly to the V-groove axis direction of the material setting table 1 while the small band saw rotates around the shaft 5, the cutting material is vertical. Can be cut.

In order to support the small band saw 8 after material cutting, a support base 3 is provided at the lower part of the left side surface of the material installation base 1. After the material is cut, the lowermost part 14 of the small band saw comes into contact with the support base 3, the rotating small band saw is held stationary, and the material cutting is completed.
A shaft is attached to the small band saw, and the shaft is attached to a shaft cradle for use. When installing and using continuously for a long time, insert a pine needle pin to prevent the shaft from being used. When the installation and the portable use are repeatedly used, the pine needle pin can be used without being inserted. A small band saw cutting assist device that further improves work efficiency.

Next, another embodiment of the shaft cradle 2 will be described with reference to FIG.
The shaft 40 is another form of the shaft 5. The shaft male screw 6 is provided at the tip, and the shaft 40 is attached to a shaft attachment female screw 9 provided as an attaching / detaching means at the front part of the frame body of the small band saw 8. As shown in the figure, the shaft 40 may be provided with a grip portion covered with a soft material so as to be easily operated by hand and a safety hook. A terminal portion 42 of the shaft 40 is removably locked in a hole 44 provided in the pin 43. One end of the pin 43 is fixed to the shaft cradle 2 by a washer 46 and a nut 47 through a hole 49 provided in a direction perpendicular to the longitudinal axis of the material installation base. Thereby, the small band saw fixed to the shaft 40 is rotatably installed around the pin 40.

The shaft groove 41 is provided on the base portion side of the male screw 6 at the tip of the shaft 40, and the shaft 40 is supported in parallel with the material installation table 1 so that the shaft groove 41 is detachable in the vertical direction. A U-shaped groove 48 in the direction of the longitudinal axis of the material installation base is provided. As a result, the shaft 40 is pivotably fixed between the pin 43 and the U-shaped groove 48, so that the small band saw is placed on the material so that the saw blade 13 is perpendicular to the axial direction of the material placement table 1 around the pin 40. It can be turned up and down at the right end of the table.

DESCRIPTION OF SYMBOLS 1 Material installation stand 2 Shaft stand 3 Support stand 4 Vise 5 Shaft 6 Shaft male screw 7 V groove 8 Small band saw 9 Shaft attachment female screw 10 Battery 11 Handle 12 Motor 13 Band saw 13a Band saw 14 Bottom 15 Matsuba pin 16 Matsuba pin attachment Hole 20 Equilateral mountain-shaped steel 21 Material auxiliary installation base 30 Cutting auxiliary material 31 Equilateral mountain-shaped steel 40 Shaft 41 Axle groove 42 Terminal portion 43 Pin 44 Hole 48 U-shaped groove A Equilateral mountain-shaped steel installation groove B on one side 20 mm Equilateral angle-shaped steel installation Groove C Equilateral angle-shaped steel installation groove D with a side of 30 mm E Side-mounting steel installation groove with a side of 40 mm E V-shaped groove bottom

The material installation base is provided with a V-shaped groove in the longitudinal axis direction, and the V-shaped surface portion is provided with the ends of the both sides being installed with the apexes of the equilateral mountain-shaped steel facing upward and the both ends being parallel and facing downward A small-sized band saw cutting assist device characterized by providing a symmetrical groove.

Claims (8)

A small band saw with a rotating band saw, motor, battery, and handle, a shaft perpendicular to the side surface of the band saw to be used for cutting the band saw, and a detachable means at the front of the frame of the small band saw A shaft receiving base that is rotatably supported around the shaft by the shaft support means, and a material installation base provided with a V-shaped groove in the longitudinal axis direction. The shaft axis direction is arranged in parallel to the left and right longitudinal axis direction of the material installation table, and the range used for cutting the band saw is outside the right end portion of the material installation table in the left and right longitudinal axis direction. The small band saw cutting auxiliary device characterized in that the shaft cradle is disposed so as to be positioned at the position.   2. The small band saw cutting auxiliary device according to claim 1, wherein said shaft support means of said shaft pedestal is provided so as to be detachable from said shaft. The shaft support means of the shaft receiving base comprises a hole for removably locking and supporting the shaft in the direction of the longitudinal axis of the material installation base. Item 3. A small band saw cutting auxiliary device according to item 2.   The shaft support means of the shaft pedestal is supported so as to be removably engaged with the shaft end portion, and a pin that is rotatable about an axis perpendicular to the longitudinal direction of the material installation table, The small band saw according to claim 1 or 2, further comprising a U-shaped groove provided in the longitudinal direction of the longitudinal axis of the material installation table for detachably supporting a shaft groove provided on a shaft front end side. Cutting assist device. The material installation base is provided with a V-shaped groove in the longitudinal axis direction, and the V-shaped surface portion is provided with the ends of the both sides being installed with the apexes of the equilateral mountain-shaped steel facing upward and the both side ends facing downward. 5. A small band saw cutting auxiliary device according to claim 1, wherein a symmetrical groove is provided. The attaching / detaching means provided in the front portion of the frame of the small band saw is constituted by a female screw, and a shaft provided with a male screw is freely mountable, and the small band saw can be used alone for carrying by attaching the shaft. The small-sized band saw cutting auxiliary device according to any one of claims 1 to 5, wherein   The small band saw cutting auxiliary device according to any one of claims 1 to 6, wherein a vise for material fixation is provided on the right side in the longitudinal center axis direction of the material installation base in a front view.   The small band saw cutting auxiliary device according to any one of claims 1 to 7, wherein a support base for supporting the small band saw is provided at a lower right front surface of the material installation base.