JP2006188073A - Desk top cutting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve tilting position adjustment of a cutting tool part with an inexpensive structure and to provide a desk top cutter enabling easy position adjustment. <P>SOLUTION: The regulation means has a forward backward slidable stopper pin 13 mounted in one side of a base part 2 or a tilting member 6, a stopper bolt 20 which the stopper pin 13 can touch when a cutting tool part 8 is located at a position perpendicular to the upper surface of the base part 2 and which is screwed to the other part of the base part 2 or the tilting member 8 in the direction vertical to the stopper pin 13, and contact parts 22a and 22b which the stopper pin 13 can contact when the cutting tool part 8 is located between the position perpendicular to the upper surface of the base part 2 to the position at the inclination angle of 45 degrees to the same. When the tilting member 6 is inclined, the stopper pin 13 can contact the stopper bolt 20 and the contact parts 22a and 22b depending on the slide position of the stopper pin 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tabletop cutting machine provided with a stopper device that regulates the amount of inclination of a cutting tool portion at a right angle position (0 degree).

  A conventional tilt type tabletop cutting machine is disclosed in Japanese Utility Model Publication No. 63-49901. Conventional techniques will be described with reference to FIGS.

  The angled cutting method of the inclined tabletop cutting machine is to place a workpiece on the upper surface of the base 1 and the turntable 2 embedded in the approximate center of the base 1, first loosen the side handle 14, The fixed state is released, the turntable 2 supporting the cutting tool portion 8 is rotated in the horizontal direction, and the cutting tool portion 8 is rotated to a desired position. When the desired position is reached, the side handle 14 is tightened to fix the turntable 2 and the base 1, and the horizontal angle position of the cutting tool portion 8 is set. Next, the cutting tool portion 8 is swung downward to cut the workpiece, and after the cutting is completed, the cutting tool portion 8 is returned to the upper limit to complete the cutting operation.

  Next, in the inclined cutting method, the workpiece is placed on the upper surfaces of the base 1 and the turntable 2, and the clamp lever 5 is first loosened to release the fixed state between the holder 6 that supports the cutting tool portion 8 and the base 1. Then, the holder 6 is rotated in the left-right direction, and the cutting tool portion 8 is tilted to a desired position. When the desired position is reached, the clamp lever 5 is tightened to fix the holder 6 and the base 1, and the inclined position of the cutting tool portion 8 is set. Next, the cutting tool portion 8 is swung downward to cut the workpiece, and after the cutting is completed, the cutting tool portion 8 is returned to the upper limit to complete the cutting operation. Moreover, the combined cutting which combined these angle cutting and inclination cutting is also possible.

  As an example of processing for combined cutting, there is a molding material 15 (a decorative material provided along the corners of the ceiling and the wall) as shown in FIGS. 8 to 13, and those having a θ angle of 45 degrees and 38 degrees. is there. In the case of a molding material with θ of 45 degrees, the cutting tool section 8 is set to a position where the right horizontal angle is 35.3 degrees and the left inclination angle is 30 degrees in the figure C section. The D part sets the cutting tool part 8 to a position with a left horizontal angle of 35.3 degrees and a left inclination angle of 30 degrees. Further, in the case of a molding material having θ of 38 degrees, the cutting tool section 8 is set at a position where the right horizontal angle is 31.6 degrees and the left inclination angle is 33.9 degrees. The D part sets the cutting tool part 8 to a position with a left horizontal angle of 31.6 degrees and a left inclination angle of 33.9 degrees.

  The horizontal angle of the cutting tool 8 is set by combining the indicator 15 provided on the turntable 2 side with the angle scale “35.3” or “31.6” provided on the base 1. 2 is set, and the side handle 14 is fastened and fixed.

  The inclination angle is set by matching the indicator 4 provided on the holder 6 side with the inclination scale “30” or “33.9” provided on the turntable 2, and setting the position of the holder 6. Fix it.

  Further, as a conventional technique, there is a structure of an inclined portion by a ball index as shown in FIG. This is provided with a steel ball 25 which is held between a turntable 2 having a stopper hole 23 at an arbitrary inclination angle and a holder 6 and pressed by a spring 24 and interlocked by the inclination rotation of the holder 6. The tilt angle is set by loosening the clamp lever 5, releasing the fixed state of the holder 6 supporting the cutting tool portion 8 and the turntable 2, rotating the holder 6 left and right, and moving the holder 6 to the stopper hole 23 of the turntable 2. -The clamp lever 5 is tightened at an arbitrary tilt angle position where the ball 25 is contained.

Japanese Utility Model Publication No. 63-49901

  When the inclination angle of the cutting tool portion is set to a desired position with respect to the upper surface of the base 1 in the conventional structure, an error due to parallax occurs because the inclination scale of the turntable 2 and the indicator 4 are aligned as described above, and the weight Since the clamp lever 5 has to be tightened while holding a certain cutting tool part 8, it is difficult to set the inclination position of the cutting tool part 8 accurately.

  Further, in the structure of the inclined portion by the ball index, there are problems that complete positioning cannot be performed at an arbitrary inclined position due to the weight of the cutting tool portion 8, and positioning is unstable.

  An object of the present invention is to provide a tabletop cutting machine that eliminates the drawbacks of the prior art described above, realizes the tilt position adjustment of the cutting tool portion with an inexpensive configuration, and can easily adjust the position.

  The above object is provided between a base part for supporting a workpiece, a cutting tool part having a cutting tool above the base part, and the base part and the cutting tool part, and is pivotally supported to be inclined with respect to the base part. A tabletop cutting machine provided with a tilting member and a regulating means for regulating the tilting of the tilting member, wherein the regulating means includes a stopper pin provided on one of the base part and the tilting member so as to be slidable back and forth, and an upper surface of the base part When the position of the cutting tool part relative to the stopper is a right angle position, the stopper pin can come into contact with the stopper bolt which is screwed to the other of the base part or the inclined member in the direction perpendicular to the stopper pin, and the cutting tool for the upper surface of the base part A contact portion that can be contacted by the stopper pin when the position of the portion is between 45 degrees and a right angle, and when the inclined member is inclined, the stopper pin is Paboruto is achieved by the abutting portion can abut configuration.

  According to the present invention, it is possible to regulate the tilt position at a position between 45 degrees from the right angle position by using the stopper pin that regulates the right angle position of the cutting tool part, and to adjust the tilt position of the cutting tool part. Can be realized with an inexpensive configuration, and a tabletop cutting machine that can be easily adjusted in position can be provided.

  An embodiment of the present invention will be described with reference to FIGS. 1 is a left side view of a tabletop cutting machine, FIG. 2 is a partial rear view of FIG. 1, FIG. 3 is a front view of FIG. 1, FIGS. 4 and 5 are cross-sectional views taken along line II in FIG. 3 is a front view showing the left inclined position of FIG. 3, and FIG. 7 is a front view showing the right inclined position of FIG.

  In the figure, a turntable 2 is embedded in the center of a base 1 so as to be rotatable in the horizontal direction, and a base portion on which a workpiece is placed is constituted by only the base 1 or the base 1 and the turntable 2. A holder shaft 3 protrudes in the horizontal direction at the rear part of the turntable 2, and the axis of the holder shaft 3 is positioned so as to substantially coincide with the upper surface of the turntable 2. The holder 6 serving as an inclined member is pivotally supported by the holder shaft 3 as a fulcrum with respect to the turntable 2 having an inclined scale (not shown) on the outer periphery so that the holder 6 can be inclined right and left. The holder 6 is provided with an indicator 4 that indicates the inclination angle of the inclination scale. The turntable 2 is formed with a long hole 2a centered on the holder shaft 3, the clamp lever 5 passes through the long hole 2a, and the screw hole formed at the tip of the clamp lever 5 is formed at the rear of the holder 6. The part is screw-fitted. When the clamp lever 5 is loosened, the fixed state of the turntable 2 and the holder 6 is released, and the holder 6 can turn left and right within the range of the long hole 2a with the holder shaft 3 as a fulcrum. The table 2 and the holder 6 are fixed, and the holder 6 can be set to an arbitrary inclination angle.

  A cutting tool portion 8 provided with a cutting handle 10 is pivotally supported above the holder 6 with a shaft 7 as a fulcrum so as to swing up and down with respect to the base 1. The cutting tool portion 8 holds a cutting tool 12 such as a circular saw that is rotationally driven from the motor 9 via the shaft 11.

  Adjustment bolts 18 and 19 are screwed in the vertical direction on the upper rear side of the turntable 2. On the other hand, a stopper 26 is provided on the front surface of the holder 6. When the holder 6 is tilted left and right, the contact surface 26a or the contact surface 26b of the stopper 26 contacts the head of the adjustment bolt 18 or the adjustment bolt 19 at a predetermined tilt angle, and the left and right tilt position of the cutting tool portion 8 is set. To do. In the present embodiment, the stopper 26 is formed in a V-shape that spreads at an angle of 45 degrees in the left-right direction when the holder 6 is at a right angle position, so that the abutment surface 26 a Alternatively, the contact surface 26b is horizontal, and the adjustment bolts 18 and 19 and the stopper 26 are in surface contact.

  The stopper part which regulates the inclination of the cutting tool part 8 at a right angle and an arbitrary position (30 degrees, 33.9 degrees) will be described. A stopper pin 13 is fitted to the turntable 2 so as to be slidable back and forth toward the holder 6 side. A stopper bolt 20 is screwed to the holder 6 in a direction perpendicular to the stopper pin 13. The stopper bolt 20 is provided at a position where it comes into contact with the outer periphery of the tip of the stopper pin 13 when the cutting tool portion 8 is at a right angle. A hole 22 is formed in the holder 6 as an engaging portion into which the distal end portion 13a of the stopper pin 13 is fitted, and the stopper pin 13 can be inserted into and removed from the hole 22. The hole portion 22 is formed at a position where the stopper pin 13 is fitted into the hole portion 22 when the inclined position of the cutting tool portion 8 is 30 degrees to 33.9 degrees.

  In the above configuration, when the workpiece is cut by the cutting tool 12, first, the handle 10 is grasped and the cutting tool portion 8 is swung downward to give a cut. After the workpiece cutting is completed, the cutting tool portion 8 is returned to the upper limit.

  When the cutting tool portion 8 is tilted, the indicator 4 is adjusted to a desired numerical value on the tilt scale of the turntable 2 so that the clamp lever 5 is loosened to a desired tilt angle, and the clamp lever 5 is tightened to fix the tilt position. The normal inclined cutting angle is 45 degrees. The adjusting bolts 18 and 19 are brought into contact with the stoppers 26 protruding from the holder 6 to set the amount of inclination, and the cutting operation is performed.

  When cutting at a desired inclination position (30 degrees, 33.9 degrees), the clamp lever 5 is loosened, and the stopper pin 13 is inserted into the hole 22 in the vicinity of the desired inclination angle. When the tilt position is 30 degrees, the holder 6 is moved in the direction A so that one side surface 22a of the hole 22 abuts the outer periphery of the tip of the stopper pin 13, and the clamp lever 5 is tightened to fix the tilt position. When the tilt position is 33.9 degrees, the holder 6 is moved in the B direction so that the other side surface 22b of the hole 22 abuts the outer periphery of the tip of the stopper pin 13, and the clamp lever 5 is tightened to fix the tilt position.

  Next, when making a right angle cut (0 degree cut) from the inclined cut, the holder 6 is returned to the vicinity of the right angle position while viewing the inclined scale of the turntable 2 and the indicator 4, and then the holder pin 6 and the stopper bolt 20 are brought into contact with each other Position the right angle position by moving, and perform the cutting work after setting.

It is a left view of the tabletop cutting machine which shows embodiment of this invention. FIG. 2 is a partial rear view of FIG. 1. It is a front view of FIG. It is the II sectional view taken on the line of FIG. 2 (left inclination position). It is the II sectional view taken on the line (right-angle position) of FIG. It is a front view which shows the left inclination position of FIG. It is a front view which shows the right inclination position of FIG. This is an example of molding material construction. It is a perspective view of the construction example of a molding material. It is an example of processing of a molding material. It is an example of processing of a molding material. It is an example of processing of a molding material. It is an example of processing of a molding material. It is a left view of the tabletop cutting machine which shows a prior art example. FIG. 15 is a partial rear view of FIG. 14. It is sectional drawing of the inclination part by the ball index which shows a prior art example.

2 ... Turntable, 6 ... Holder, 8 ... Cutting tool part, 13 ... Stopper pin, 22 ... Hole part. 22a, 22b ... Side surfaces of the hole.

Claims (2)

A base part for supporting a workpiece, a cutting tool part having a cutting tool above the base part, and a base part and a cutting tool part are provided between the base part and the cutting tool part, and are pivotally supported so as to be tiltable with respect to the base part. A tabletop cutting machine provided with an inclined member and a regulating means for regulating the inclination of the inclined member,
The restricting means is configured such that the stopper pin comes into contact with a stopper pin provided on one of the base portion and the inclined member so as to be slidable back and forth, and when the position of the cutting tool portion is perpendicular to the upper surface of the base portion. A stopper bolt screw-fitted to the other of the base part or the inclined member in a direction perpendicular to the stopper pin and the position of the cutting tool part with respect to the upper surface of the base part is between 45 degrees inclined from a right angle position. A stopper portion that can contact the stopper pin, and when the inclined member is inclined, the stopper pin contacts the stopper bolt and the contact portion depending on the sliding position of the stopper pin. A tabletop cutting machine characterized in that it can be touched. When the stopper pin is in the first sliding position, the stopper bolt cannot be brought into contact with the stopper bolt and the contact portion, and when the stopper pin is in the second sliding position. The stopper bolt can be brought into contact with the stopper bolt according to the inclined position of the inclined member, and the stopper pin is further on the side opposite to the first sliding position than the second sliding position. 2. The tabletop cutting machine according to claim 1, wherein the stopper bolt can be brought into contact with the contact portion in accordance with an inclined position of the inclined member when in the sliding position.

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