JPH11226902A - Inclined position fixing unit for bench cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply set an inclined position of a cutting tool and a rotating position of a turntable by rotatably providing a handle at a front end of the turntable, engaging a rod with the handle, and fixing or releasing the fixing of the turntable to a holder by the rod. SOLUTION: A handle 21 is loosened to stop pressing a contact part 2a and female threads 20 of a washer 24 toward a turntable 2 and to release fixing of a holder 6. The holder 6 is laterally freely inclined in a predetermined range at a holder shaft 3 as a fulcrum, and set to a desired inclining angle. Then, the handle 21 is tightened to push the part 2a by a pin 23 and the washer 24 to fix its position. A grip 25 is loosened to stop pressing of a contact part 1b of a base 1 and to rotatably set the turntable 2 with a shaft 22 as a fulcrum. And, the shaft 22 is horizontally rotated by the handle 21 to be set to a desired rotating angle. Then, the grip 25 is clamped fixedly. Thus, inclining and angle position regulating operations of the cutting tool can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for fixing an inclined position of a holder in a tabletop cutting machine in which a cutting tool can be freely inclined.

[0002]

2. Description of the Related Art A conventional technique will be described with reference to FIGS. 2. Description of the Related Art Conventionally, a desktop cutting machine in which a cutting tool portion can be freely tilted has been proposed, for example, in Japanese Utility Model Laid-Open No. 63-49901. The tabletop cutter includes a cutting tool 12, a cutting tool 8 supporting a motor 9 for driving the cutting tool 12, and a holder 6 having the cutting tool 8 mounted on an upper end thereof so as to be rotatable in a vertical direction. The holder 6 is attached to the base 1 on which the work material is placed so as to be tiltable in the left-right direction, and the holder 6, that is, the cutting tool portion 8 is inclined at an arbitrary position in the left-right direction to cut the work material at an arbitrary angle. It is something to do. A method of positioning the holder 6, that is, the inclined position of the cutting tool 12, will be described. First, the clamp lever 30 provided at the rear of the holder 6 is loosened to tilt the holder 6 in the left-right direction, and an inclined position (not shown) provided on the holder 6 and an indicator 4 provided on the base 1 determine an inclined position. In this state, the clamp lever 30 is tightened to fix the holder 6 to the base 1 for positioning. Also,
The rotation of the turntable 2 can be fixed or released by rotating a handle 21 provided at the front end of the turntable 2 so that the handle 2
The turntable 2 is fixed by pressing the contact portion 1c of the base 1 with one tip.

[0003]

Usually, the operator is located in front of the product main body for the purpose of operating the cutting tool portion 8.
Therefore, when the clamp lever 30 is operated, the hand must be extended from the near side to the rear of the holder 6. Therefore, when setting the inclination angle of the cutting tool portion 8, the hand is extended to the rear of the holder 6, the clamp lever 30 is loosened, the holder 6 is inclined to an arbitrary position, and the hand is extended to the rear of the holder 6 again, and the clamp lever is extended. Since the holder 6 and the turntable 2 were fixed by tightening 30, the operability was very poor. In addition, since the handle 21 is rotated to fix and release the rotation of the turntable 2, there is an inconvenience of setting the tilt position of the cutting tool 8 and setting the rotation position of the turntable 2.

An object of the present invention is to eliminate the above-mentioned disadvantages of the prior art, to improve the operability of setting the inclination position of the cutting tool, and to easily set the inclination position of the cutting tool and the turning position of the turntable. It is to be.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a base for supporting a work material, a cutting tool having a cutting tool above the base, and a cutting tool between the base and the cutting tool. In a desktop cutting machine provided with a holder for tilting in the left-right direction, a handle is provided rotatably at the front end of the turntable, a rod is engaged with the handle, and the rod fixes and fixes the turntable and the holder. Achieved by releasing.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 is a partial sectional left side view of the tabletop cutting machine, FIG. 2 is a partially enlarged view of FIG. 1, FIG. 3 is a partially enlarged view of FIG. 1, FIG. 4 is a partial rear view of FIG. 1, and FIG. FIG. 6 is a front view in which the cutting tool portion in FIG. 5 is inclined rightward.

In 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 about a shaft 22. 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. The holder 6 is mounted on the turntable 2 via the holder shaft 3 and can be inclined in the left-right direction with the holder shaft 3 as a fulcrum. The holder 6 has an elongated hole 6a centered on the holder shaft 3 for mounting a female screw 20 described later. A processing material such as wood (not shown) is placed on the upper surfaces of the base 1 and the turntable 2, and a fence 5 is provided on the upper surface of the base 1 so that the side surface of the processing material is brought into contact with and positioned. In FIG.
The turntable 2 is provided with an indicator 4 for indicating a tilt angle of a tilt scale provided on the holder 6.

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 section 8 includes a cutting tool 12.
(In this embodiment, a circular saw), a vertical motor 9 for driving the cutting tool 12, a cover for guarding the cutting tool 12, and the like are supported. Reference numeral 10 denotes a handle, and 11 denotes a saw shaft on which the cutting tool 12 is mounted. Cutting tool part 8 is holder 6
It is supported in a state of being constantly urged upward by a spring 13 mounted between the cutting tool 8 and the cutting tool 8. Further, while the bolt 14 is screwed into the cutting tool portion 8, the holder 6
On the side, the stopper 1 to which the end of the bolt 14 can contact
The lower limit of the swing can be adjusted by adjusting the screwing degree of the bolt 14 by regulating the lower swing limit of the cutting tool portion 8 by the abutment thereof.

A stopper 16 is mounted on the front surface of the holder 6, and adjustment bolts 17, 18 are vertically screw-fitted behind the upper surface of the turntable 2 so as to be positioned on the movement locus of the stopper 16. As shown in FIG. 6, when the holder 6 is inclined rightward, the surface 16b of the stopper 16 is engaged with the head of the adjustment bolt 18 at a predetermined inclination angle, and the right inclination position of the cutting tool portion 8 is set. . When the holder 6 is tilted leftward, the stopper 16 is tilted at a predetermined tilt angle.
Surface 16a engages with the head of the adjustment bolt 17, and sets the left inclined position of the cutting tool portion 8. In this embodiment,
When the holder 6 is at a right angle position, the stopper 16 is formed in a V-shape extending at an angle of 45 degrees in the left-right direction, so that when the holder 6 is inclined up to 45 degrees in the left-right direction, the surface 16a or the surface 1
6b is horizontal, and the stopper 16 is
7 or in contact with the adjustment bolt 18. Therefore, the adjusting bolts 17 and 18 are fixed to the holder 6 in the left-right direction.
It is provided so as to engage with the stopper 16 when it is tilted to the position of 5 degrees, that is, the left tilt position and the right tilt position.

In FIG. 1, a plurality of support projections 2a are formed to project from the lower surface of the turntable 2. A rod 19 for rotating the turntable 2 is rotatably inserted into the support protrusion 2a, communicates from the front end to the rear end of the turntable 2, and penetrates to the elongated hole 6a of the holder 6.
A female screw 20 is provided in the elongated hole 6a of the holder 6, and a screw portion 19a formed at one end of the rod 19 is screw-fitted into a screw hole 20a of the female screw 20. A handle 21 is attached to the other end of the rod 19. The holder 6 can be tilted in the left-right direction within the range of the elongated hole 6a with the holder shaft 3 as a fulcrum.

An abutting portion 2a is provided on the inner surface of the rear surface of the turntable 2 on the holder 6 side. The rod 19 is provided with a pin 23 and a washer 24 near the abutting portion 2a. With the rotation of the rod 19 itself via the handle 21, the washer 24 presses the contact portion 2a, and the female screw 20 presses the receiving surface 6b of the elongated hole 6a. The position is fixed at the inclined position.

A grip 25 having a screw portion 25a is rotatably provided at a portion adjacent to the handle 13 of the rod 19, and a female screw portion 2b is formed at the front end of the turntable 2. The female screw portion 2b has a female screw portion 2b. The part 25a is screw-fitted. The grip 2 is rotated by the rotation of the grip 25.
The turntable 5 is moved toward the base 1 and presses the contact portion 1 b of the base 1, so that the turntable 2 is fixed at an arbitrary rotation position with respect to the base 1. In this embodiment, the screw portion 25a is provided on the grip 25 and the female screw portion 2b is provided on the turntable 2. However, a female screw portion on the grip 25 and a screw portion on the turntable 2 may be provided.

Next, the operation of the desk cutting machine will be described. First, the work material is placed on the base 1 and the turntable 2, and is fixed in a state where the side portions thereof are in contact with the fence 5 and aligned. The vertical cutting of the cutting tool 12 with respect to the base 1 (the state shown in FIG. 5), and the cutting tool section 9 is tilted to the right or left with respect to the base 1 together with the holder 6 so that the cutting tool 12 Is inclined with respect to the base 1 (FIG. 6).
Angle cutting).

In the case of vertical cutting, after the holder 6 is fixed in a vertical state, the operator presses the handle 10 of the cutting tool unit 8 from above against the urging force of the spring 13, and the cutting tool unit 8 is pressed. Is pressed down about the shaft 7 with respect to the holder 6, the work material is cut by the cutting tool 12. Further, if the operator pushes down the cutting tool portion 9 in a state where the holder 6 is tilted and held to the right side as shown in FIG. 6, it is possible to cut an angle of the workpiece.

In the above configuration, a method for fixing and releasing the holder 6 will be described. When the handle 21 is loosened, the washer 24 is pressed against the contact portion 2a and the female screw 20 is pressed.
Is stopped in the direction of the turntable 2 and the fixing of the holder 6 is released. The holder 6 can be tilted left and right around the holder shaft 3 within the range of the elongated hole 6a. Next, with the holder 6 set at a desired inclination angle, the handle 2
When pin 1 is tightened, pin 23 and washer 24
a, the position of the holder 6 is fixed.

A method for fixing and releasing the turntable 2 will be described. When the grip 25 is loosened, the base 1
Is stopped, and the turntable 2 becomes rotatable about the shaft 22 as a fulcrum. The turntable 2 is horizontally rotated by the handle 21 via the rod 19 by the handle 21. When the grip 25 is tightened while the turntable 2 is set at a desired rotation angle, the grip 25 presses the contact portion 1b, and the position of the turntable 2 is fixed.

When cutting the work material with the cutting tool 12, as shown in FIG. 1, when inclining the cutting tool portion 8 right and left from the state of the right-angled cutting position, the grip 25 is loosened to contact the contact portion 1b. Release the pressing and release the fixation of the turntable 2. When the handle 21 reaches the position of the turntable 2 at a desired angle, the grip 25
To fix the turntable 2 at a desired angular position. The cutting tool section 8 is maintained at a desired angular position, and by holding the handle 10 and pushing the cutting tool section 8 downward,
Angle cutting of work material is possible.

As shown in FIG. 6, when the cutting tool portion 8 is inclined right and left from the state of the right angle cutting position, the handle 2 is used.
1 is released to release the holder 6 from being fixed. When the holder 6 reaches the desired inclined position, the handle 21 is tightened to fix the turntable 2 and the holder 6, so that the holder 6 is supported at the desired inclined position. The cutting tool section 8 is maintained at a desired inclined position, and the handle 10 is grasped and the cutting tool section 8 is held.
By pressing down, inclined cutting of the work material can be performed.

[0019]

According to the present invention, the operator can easily set the right angle position of the cutting tool portion by operating the handle provided at the front end of the turntable without reaching behind the holder. Therefore, the operation for adjusting the tilt position of the cutting tool can be simplified.

Further, by operating the grip of the adjacent portion of the handle, the positioning of the turntable can be easily set, so that the operation for adjusting the angular position of the cutting tool can be simplified.

[Brief description of the drawings]

FIG. 1 is a partial sectional left side view of a tabletop cutting machine showing an embodiment of the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a partially enlarged view of FIG. 1;

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

FIG. 5 is a front view of FIG. 1;

FIG. 6 is a front view of the cutting tool shown in FIG.

FIG. 7 is a front view of a conventional tabletop cutting machine.

FIG. 8 is a partial rear view of FIG. 7;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 1b ... Contact part, 2 ... Turntable, 2a
... Supporting projections, 2b ... Female thread, 6 ... Holder, 6a ... Elongated hole, 6b ... Receiving surface, 19 ... Rod, 19a ... Screw, 2
0: female thread, 20a: screw hole, 21: handle, 23
... Pin, 24 ... Washer, 25 ... Grip, 25a ... Screw part.

Claims (2)

[Claims] 1. A cutting tool section having a cutting tool is provided above a base, the cutting tool section having a cutting tool is provided above the base, and a cutting tool is provided between the base and the cutting tool section. In a desktop cutting machine provided with a holder for inclining the portion in the left-right direction, a handle is rotatably provided at the front end of the turntable, and a rod is engaged with the handle,
A tilting position fixing device for a tabletop cutting machine, wherein a rod is screw-fitted to a screw to be provided on the holder. 2. The tilt stopper device for a tilting table-top cutting machine according to claim 1, wherein a grip is rotatably provided adjacent to the handle, and the base is pressed by the rotation of the grip.