JPH10273U - Left-right inclined table cutting machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a right and left tilt type tabletop cutting machine capable of easily positioning a right angle position. SOLUTION: When a cutting tool 12 is at a right angle position, an adjustable adjust bolt 17 and a stopper 21 are provided on a slidably opposed holder 6 and a turntable 2, and the adjust bolt 17 is stopped by a stopper holder 16. It is provided so as to be able to retract at a position where it does not engage with 21.

Description

[Detailed description of the invention]

[0001]

TECHNICAL FIELD OF THE INVENTION

 The present invention provides a cutting tool such as a circular saw, and a cutting tool portion supporting a motor for driving the cutting tool is tilted to an arbitrary position in the left-right direction to cut a workpiece at an arbitrary angle. It relates to a tabletop cutting machine.

[0002]

[Prior art]

 2. Description of the Related Art A conventional left-right tilt type table cutting machine has been proposed, for example, in Japanese Utility Model Laid-Open No. 63-49901. The right-and-left inclined table cutting machine comprises a cutting tool, a cutting tool part supporting a motor for driving the cutting tool, and a holder having the cutting tool part mounted on an upper end so as to be rotatable in a vertical direction. The holder is attached to the base part on which the work material is placed so that it can be tilted along the left and right direction.The holder, that is, the cutting tool part, can be tilted to any position in the left and right direction to cut the work material at any angle. It was made.

A method of positioning the holder, ie, the cutting tool at an inclined position, will be described with reference to FIG. First, the clamp lever 5 is loosened to incline the holder 6 in the left-right direction, and the inclined position is determined by an inclined scale (not shown) provided on the holder 6 and the indicator 4 provided on the base 1. Then, the holder 6 is fixed to the base 1 to complete the positioning. Similarly, when the cutting tool is at a right angle to the base 1, the clamp lever 5 is loosened and the holder 6 is returned to a right angle in the same manner as described above, so that “0” at the right angle position of the inclined scale of the holder 6 is set. After the right angle position is determined according to the indicator 4 of the holder 6 and the indicator 4 of the base 1 in accordance with the indicator 4, the clamp lever 5 is tightened to finish.

[0004]

[Problems to be solved by the invention]

 Since the above-described positioning method is performed using the inclined scale of the holder 6 and the indicator 4, there is a possibility that an error may occur due to parallax. Further, since the clamp lever 5 must be tightened with the other hand while holding the heavy cutting tool by hand, it is difficult to accurately set the right angle position of the cutting tool. As described above, the conventional right-and-left inclined table cutting machine has a problem that the operability of right-angle positioning is particularly poor and that accurate position setting cannot be performed.

[0005] An object of the present invention is to provide a left-right tiltable table-top cutting machine which eliminates the above-mentioned disadvantages of the prior art, improves operability of right-angle positioning, and enables accurate positioning.

[0006]

[Means for Solving the Problems]

 The object is to engage the positioning means when the cutting tool is located at a right angle position, one of which is a set of a first engagement body and a first engaged body provided on the base part side and the other is provided on the holder side. When the cutting tools are located at the left inclined position, they engage with each other, one is a set of a second engaging body and a second engaged body provided on the base side and the other is provided on the holder side, and the cutting tool is the right inclined position. Are engaged with each other when one of them is located at a position, one is constituted by a set of a third engaged body and a third engaged body provided on the base side and the other is provided on the holder side, and the first engaged body is formed as the first engaged body. This is achieved by providing a retractable position at a position where no engagement occurs.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

 An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of a left-right inclined table cutting machine showing an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1, FIG. 3 is an arrow view of FIG. 1 viewed from the arrow A direction, and FIG. 5 is a front view in which the cutting tool is inclined rightward, and FIG. 6 is a front view in which the cutting tool is inclined leftward.

In FIG. 1, a turntable 2 is buried and supported at a substantially center of a base 1 so as to be rotatable in a horizontal direction. A holder shaft 3 protrudes from the rear of the turntable 2 in the horizontal direction, 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 is mounted on the turntable 2 via the holder shaft 3, and the holder 6 can be inclined in the left-right direction with the holder shaft 3 as a fulcrum. On the upper surfaces of the base 1 and the turntable 2, a processing material such as wood (not shown) is placed. In the present invention, a member on which a work material is placed is generically called a base portion.

In FIG. 4, the turntable 2 is provided with an indicator 4 for indicating a tilt angle of a tilt scale provided on the holder 6. A long hole 6a centering on the holder shaft 3 is formed in the holder 6, and a clamp lever 5 which constitutes a clamp means passes through the long hole 6a. It is screwed into the screw hole formed at the rear. When the clamp lever 5 is loosened, the fixed state of the holder 6 with the turntable 2 is released, and the holder 6 can be tilted in the left and right direction within the range of the elongated hole 6a with the holder shaft 3 as a fulcrum. When the clamp lever 5 is tightened, the holder 6 is fixed to the turntable 2 and the holder 6 can be positioned at an arbitrary inclination angle. A cutting tool section 8 is mounted on the upper end of the holder 6 via a shaft 7 so as to be rotatable in a vertical direction. As is well known, the cutting tool section 8 supports a cutting tool 12 (a circular saw in the present embodiment), a vertical motor 9 for driving the cutting tool 12, a cover for guarding the cutting tool 12, and the like. Reference numeral 10 denotes a handle, and 11 denotes a saw shaft to which a cutting tool 12 is attached.

A stopper 21 is mounted on the front surface of the holder 6, and an adjustment bolt 17 located on the movement trajectory of the stopper 21 is mounted on a distal end 16 a of the stopper member 16 by screw fitting. The turntable 2 is mounted via a pin 15 on a support portion 20 protruding from the rear right side of the turntable 2, and is capable of horizontal rotation about the pin 15 (direction C in FIG. 3). The tip 16a of the stopper member 16 is slightly inclined downward, and is parallel to the surface 21b of the stopper 21. When the holder 6 is at the right angle cutting position, the head of the adjusting bolt 17 and the surface 21b of the stopper 21 are in surface contact. Since the adjustment bolt 17 is screw-fitted to the stopper member 16, the engagement position between the adjustment bolt 17 and the stopper 21 is adjusted by rotating the adjustment bolt 17 to adjust the amount of movement of the adjustment bolt 17 from the stopper member 16. And the right-angle position of the holder 6 can be set accurately. The pin 15, the stopper member 16, and the adjustment bolt 17 constitute a first engagement body of the present invention.

On the rear upper surface of the turntable 2, adjustment bolts 18, 19 are vertically screw-fitted so as to be located on the movement locus of the stopper 21. As shown in FIG. 5, when the holder 6 is inclined rightward, the surface 21b of the stopper 21 is engaged with the head of the adjustment bolt 19 at a predetermined inclination angle, and the right inclination position of the cutting tool portion 8 is set. . As shown in FIG. 6, when the holder 6 is tilted leftward, the surface 21a of the stopper 21 is engaged with the head of the adjustment bolt 18 at a predetermined tilt angle, and the left tilt position of the cutting tool portion 8 is set. Set. In the present embodiment, when the holder 6 is at a right angle position, the stopper 21 is formed in a V-shape that spreads at an angle of 45 degrees in the left-right direction. Alternatively, the surface 21b is horizontal, and the stopper 21 comes into surface contact with the adjustment bolt 18 or the adjustment bolt 19. Therefore, the adjustment bolts 18 and 19 are provided so as to engage with the stopper 21 when the holder 6 is tilted to the position of 45 degrees in the left-right direction, that is, the left tilt position and the right tilt position. The adjusting bolt 18 constitutes the second engaging body of the present invention, the adjusting bolt 19 constitutes the third engaging body of the present invention, and the stopper 21 corresponds to the first engaged body, the second engaged body, and the third engaged body of the present invention. Make up.

In the above configuration, when cutting the work material by the cutting tool 12, first, the handle 10 is gripped and the cutting tool portion 8 is turned downward to make a cut, and after the cut of the work material is completed, the cutting tool is cut. Return the part 8 to the upper limit.

When the holder 6 in FIG. 1 is tilted left and right so that the cutting tool 12 is at a right angle position with the adjustment bolt 17 positioned on the movement locus of the stopper 21, the stopper 21 17 and the holder 6 stops. If the clamp lever 5 is tightened in this state, the holder 6 is fixed to the turntable 2 and cutting at a right angle position becomes possible.

When the cutting tool 8 is inclined rightward from the state of the right-angled cutting position as shown in FIG. 5, the clamp lever 5 is loosened, the fixed state of the turntable 2 and the holder 6 is released, and the adjusting bolt 17 is released. Is retracted to a position that does not engage with the stopper 21 as shown by the chain line (D position) in FIG. Thereby, the holder 6 can be tilted rightward until the stopper 21 engages with the adjustment bolt 19 as shown in FIG. 5, and the holder 6, that is, the cutting tool 12 can be tilted at an arbitrary angle. In the present embodiment, when the holder 6 reaches the inclined position of 45 degrees to the right, the surface 21b of the stopper 21 is in the horizontal position and makes surface contact with the head of the adjustment bolt 19. As a result, the holder 6 is supported at the 45 ° right tilt position. If the clamp lever 5 is tightened in this state, the holder 6 is fixed to the turntable 2 at the 45 ° tilt position. By gripping the handle 10 and rotating the cutting tool portion 8 downward, the workpiece can be angle-cut.

Next, when returning from the right inclined position shown in FIG. 5 to the right-angled cutting position (0-degree cutting), the cutting tool part 8 is rotated to the left to be positioned slightly to the left from the right-angled cutting position. When the stopper member 16 is positioned on the movement locus of the stopper 21 (position E in FIG. 3) and the cutting tool 8 is slightly rotated rightward in this state, the head of the adjustment bolt 17 and the stopper 21 are rotated. Surface 21b is in surface contact. If the clamp lever 5 is tightened in this state, the holder 6 is fixed to the turntable 2 at a right angle position. At this time, since the cutting tool portion 8 is supported by the stopper member 16, the cutting tool portion 8 is supported only by lightly attaching one hand, and the clamp lever 5 can be easily tightened. When the inclination angle of the inclination scale does not indicate “0” by looking at the indicator 4, the adjusting bolt 17 is rotated to adjust the amount of screwing into the stopper member 16, and the indicator 4 is set to “0”. Finely adjust the engagement position between the adjustment bolt 17 and the stopper 21 until instructed.

As shown in FIG. 6, when the cutting tool portion 8 is tilted to the left from the state of the right-angled cutting position, the clamp lever 5 is loosened and the fixed state of the turntable 2 and the holder 6 is released. Since the stopper member 16 is not located on the locus that causes the holder 6 to incline to the left, the stopper member 16 can tilt the holder 6 to the left while maintaining the position E in FIG. When the holder 6 reaches the inclined position of 45 degrees to the left, the surface 21a of the stopper 21 is in the horizontal position and makes surface contact with the head of the adjusting bolt 18. Thereafter, the same method as in the case of the right inclination cutting may be performed.

In the above embodiment, the stopper 21 and the adjustment bolt 17 are provided on the holder 6 side and the turntable 2 side, respectively. However, as shown in FIGS. 7 and 8, the turntable 2 side and the holder 6 side respectively. It is possible to set it up, and the effect is almost the same. Hereinafter, the specific configuration will be described.

The adjustment bolt 25 is mounted on the distal end portion 23a of the stopper member 23 by screw fitting. The stopper member 23 is horizontally rotated via a pin 24 on a support portion 22 protruding from the right side of the holder 6 (see FIG. 8). (F direction) freely attached, L-shaped, and the upper surface 2a of the turntable 2 also serves as a stopper with which the adjustment bolt 25 is engaged. The pin 24, the stopper member 23, and the adjustment bolt 25 constitute a first engagement body of the present invention, the upper surface 2a of the turntable 2 is a first engagement body of the invention, and the stopper 21 is a second engagement body of the invention. , And a third engaged body. When the holder 6 is at the right angle cutting position, the head of the adjusting bolt 25 and the upper surface 2a of the turntable 2 are in surface contact. When the cutting tool part 8 is inclined rightward from the state of the right-angled cutting position, the adjustment bolt 25 is retracted to a position where it does not engage with the upper surface 2a of the turntable 2 as in the above embodiment (position G in FIG. 8). To

[0019]

【The invention's effect】

 Advantageous Effects of Invention According to the present invention, it is possible to accurately and easily position a cutting tool, that is, a holder, at a right angle position, and it is possible to provide an effect of providing a left-right tiltable desk cutting machine with improved operability.

[Brief description of the drawings]

FIG. 1 is a front view of a left-right tilt type desk cutting machine showing an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a view as seen from the direction of arrow A in FIG. 1;

FIG. 4 is a partial rear view of FIG. 1;

FIG. 5 is a front view in which a cutting tool portion is inclined rightward.

FIG. 6 is a front view in which the cutting tool is inclined leftward.

FIG. 7 is a front view of a left-right tilt type desk cutting machine showing another embodiment.

8 is a view as seen from the direction of arrow B in FIG. 7;

FIG. 9 is a partial rear view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Turntable, 2a ... Upper surface, 6 ... Holder, 8 ... Cutting tool part, 15, 24 ... Pin, 16, 23
... Stopper member, 16a ... Tip, 17, 25 ... Adjust bolt, 20,22 ... Support, 21 ... Stopper, 2
1a, 21b ... surface.

Claims (3)

[Utility model registration claims] 1. A base on which a work material is placed, a holder mounted on the base so as to be capable of tilting in the left-right direction, a cutting tool and a motor for driving the cutting tool are supported. A cutting tool part mounted so as to be able to rotate along the vertical direction, a right angle position where the cutting tool is positioned substantially at right angles to the base part, and the cutting tool is at a predetermined angle left and right from the right angle position. A left-right tiltable tabletop provided with positioning means for determining the left-right position of the cutting tool portion such as the tilted left tilt position and right tilt position, and clamp means for fixing the holder to the base at the position determined by the positioning means. A cutting machine, wherein the positioning means engages each other when the cutting tool is located at a right angle position, one of the first engaging body and the first engaged body provided on the base portion side and the other provided on the holder side. Pair, off When the cutting tools are located at the left inclined position, they engage with each other, one is a set of a second engaging body and a second engaged body provided on the base side and the other is provided on the holder side, and the cutting tool is the right inclined position. When the first engaged body is engaged with the first engaged body, one is constituted by a set of a third engaged body and a third engaged body provided on the base side and the other is provided on the holder side. A left-right tiltable desk cutting machine characterized in that it can be retracted to a position where it does not engage. 2. The method according to claim 1, wherein the second engaged body and the third engaged body are
The left-right tiltable table-top cutting machine according to claim 1, wherein the table cutting machine is formed of a plurality of members. 3. The apparatus according to claim 1, wherein said second engaging body and said third engaging body are provided such that the positions of engagement with said second engaged body and said third engaged body can be adjusted, respectively. The left-right inclined table cutting machine described.