JP2589557Y2 - Left-right inclined table cutting machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can cut a work material at an arbitrary angle by inclining a cutting tool such as a circular saw and a cutting tool portion supporting a motor for driving the cutting tool at an arbitrary position in the left-right direction. The present invention relates to such a left-right tilt type desk cutting machine.

[0002]

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

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 tilt the holder 6 in the left-right direction, and the tilt position is determined by a not-shown tilt scale provided on the holder 6 and the indicator 4 provided on the base 1, and the clamp lever 5 is tightened in this state. The positioning is completed by fixing the holder 6 to the base 1. Also, when the cutting tool is at a right angle position with respect 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.
"0", which is the right angle position of the inclined scale of the holder 6, is matched with the indicator 4, and the right angle position is determined by the inclined scale of the holder 6 and the indicator 4 of the base 1, and then the clamp lever 5 is tightened to finish.

[0004]

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.
In addition, since the clamp lever 5 must be tightened with the other hand while holding the heavy cutting tool portion by hand, it is difficult to accurately set the right angle position of the cutting tool portion. As described above, the conventional left-right tilt type table cutting machine has problems that the operability of the right-angle positioning is particularly poor and that the accurate position setting cannot be performed.

An object of the present invention is to eliminate the above-mentioned disadvantages of the prior art, improve the operability of right-angle positioning, and
It is an object of the present invention to provide a left-right inclined table cutting machine capable of performing accurate positioning.

[0006]

The object of the present invention is to provide a positioning means which engages with each other when the cutting tool is positioned at a right angle, one of which is provided on a base portion side and the other is provided on a holder side; A pair of a first engaged body and a pair of a second engaged body and a second engaged body, one of which is engaged with the cutting tool when the cutting tool is located at the left inclined position, the other being provided on the base portion side and the other being provided on the holder side. When the cutting tool is located at the right inclined position, the cutting tools are engaged with each other, and one is constituted by a set of a third engaging body and a third engaged body provided on the base portion side and the other is provided on the holder side. This is achieved by providing the union so that it can be retracted at a position where it does not engage with the first engaged member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 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.
4 is a view 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 the cutting tool portion is inclined rightward, FIG.
FIG. 5 is a front view of the cutting tool portion inclined leftward.

Referring to FIG. 1, a turntable 2 is buried and supported substantially at the center of a base 1 so as to be rotatable in a horizontal direction. A holder shaft 3 projects horizontally from the rear 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. 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. A processing material such as wood (not shown) is placed on the upper surfaces of the base 1 and the turntable 2. 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 in the rear part. When the clamp lever 5 is loosened, the fixed state of the holder 6 with the turntable 2 is released, and the elongated hole 6 with the holder shaft 3 as a fulcrum.
The inclination in the left-right direction becomes possible within the range of a. 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 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 unit 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 on which a cutting tool 12 is mounted.

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

An adjustment bolt 1 is provided on the rear upper surface of the turntable 2 so as to be located on the movement locus of the stopper 21.
8 and 19 are screw-fitted in the vertical direction. 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 inclined leftward,
The surface 21a of the stopper 21 is engaged with the head of the adjustment bolt 18 at a predetermined inclination angle, and the left inclination position of the cutting tool 8 is 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. The stopper 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, 1
Reference numeral 9 is provided so as to engage with the stopper 21 when the holder 6 is inclined at a position of 45 degrees in the left-right direction, that is, a left inclined position and a right inclined 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 constitutes 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 with the cutting tool 12, first, the handle 10 is gripped and the cutting tool portion 8 is turned downward to give a cut. To the upper limit.

If the holder 6 in FIG. 1 is inclined in the left-right direction so that the cutting tool 12 is at a right angle while the adjusting bolt 17 is positioned on the movement locus of the stopper 21,
The stopper 21 engages with the adjustment bolt 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 angle 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 the chain line (D position) in FIG.
As shown in (2), it is in a state of being retracted to a position where it does not engage with the stopper 21. 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 this embodiment,
When the holder 6 reaches the inclined position of 45 degrees to the right, the surface 21 b of the stopper 21 is in the horizontal position and makes surface contact with the head of the adjustment bolt 19. Thus, the holder 6 is supported at the 45-degree right tilt position, and if the clamp lever 5 is tightened in this state, the holder 6 is fixed to the turntable 2 at the 45-degree 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-angle cutting position (0-degree cutting), the cutting tool portion 8 is rotated to the left so as to be located slightly to the left of the right-angle cutting position. The stopper member 16 is positioned on the movement trajectory of the stopper 21 (position E in FIG. 3), and in this state, if the cutting tool 8 is slightly rotated rightward, the head of the adjustment bolt 17 and the stopper 21 The surface 21b makes 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 part 8 is supported by the stopper member 16, the cutting tool part 8 is supported only by lightly attaching one hand, and the clamp lever 5 can be easily tightened. When the indicator 4 does not indicate that the tilt angle of the tilt scale is “0”, 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”.
Is finely adjusted until the adjustment bolt 17 is instructed.

As shown in FIG. 6, when the cutting tool 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 tilt to the left, the stopper member 16 is
The holder 6 can be tilted leftward while the position E is maintained. 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. Hereinafter, it is sufficient to perform the same method as that at the time of the right inclination cutting.

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. It can be provided, and the effect is hardly changed. Hereinafter, the specific configuration will be described.

The adjusting bolt 25 is connected to the stopper member 23.
The stopper member 23 is attached to the tip portion 23a of the holder 6 by screw fitting.
4, is freely rotatable in the horizontal direction (F direction in FIG. 8), is L-shaped, and the upper surface 2 a 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, and the upper surface 2 of the turntable 2
a is the first engaged body of the present invention, and the stopper 21 is the second engaged body and the third engaged body of the present invention. When the holder 6 is at the right angle cutting position, the head of the adjustment bolt 25 and the upper surface 2a of the turntable 2 come into surface contact. Cutting tool part 8
In the case where the adjustment bolt 25 is inclined rightward from the state of the right-angled cutting position, the adjustment bolt 25 is retracted to a position where the adjustment bolt 25 does not engage with the upper surface 2a of the turntable 2 (FIG. 8).
G position).

[0019]

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 right-and-left inclined table 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.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B27B 5/20 B23D 45/14 B23D 47/02

Claims (3)

(57) [Scope of request for utility model registration] 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.