JPH0123771Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is applicable to rectangular building materials such as stone, tiles, concrete blocks, bricks, etc. used as interior materials, exterior materials, floor materials, etc. of buildings. Regarding angle cutting machines.

(Prior art) When cutting the end of a rectangular building material like the one shown below along a cross section with an arbitrary inclination angle (for example, 30°, 45°, etc.), it is difficult to cut with a conventional angle cutting machine. The guide member that guides the building material, that is, the workpiece, at a predetermined inclination angle could not be adjusted to change the inclination angle according to the cutting angle of the workpiece, so each guide member had to be replaced with a specific guide member each time the cutting angle changed. There was an inconvenience that I had to do.

The present invention has been developed in view of the above, and is a cutting machine equipped with an angle cutting guide member that can adjust the angle itself appropriately according to the arbitrary cutting angle of the workpiece, and can also adjust the angle cutting amount. The purpose is to provide

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an angle cutting method in which an angle cutting guide member 5 is provided on one side of a circular saw 3 that protrudes from a required portion of the upper surface of a table 1. The guide member 5 is a cutting machine, and the guide member 5 has a swash plate 6 that slopes downward in the direction approaching the circular saw surface, and a portion 7a of the swash plate 6 that faces upward except for a portion 7a into which the circular saw 3 can fit into the lower edge of the swash plate 6. Projecting strips 7 are provided on both ends of the swash plate 6 to hold the workpiece M in an inclined state together with the swash plate 6 and guide it slidingly in parallel with the circular saw surface. An arc-shaped elongated hole 1 that is connected in a hanging manner and whose arc center is at a position corresponding to the lower edge of the swash plate 6.
A pair of side plates 8, 8 are provided with 1 perforated therein, one end of which is pivotally attached to the side surface of the table by a screw fastener 14 through an elongated hole 9a formed in one end, and the other end is attached to each side plate with a screw fastener 14. 8, 8, and a pair of links 9, 9 which are pivotally connected to each other by means of a screw fastener 13 via the circular arc-shaped elongated hole 11.

(Function) The tip of the swash plate 6 that holds the workpiece M in an inclined state is supported in contact with the upper surface 1a of the table 1, and the rear end is supported by both side surfaces 1b of the table 1 and the swash plate 6.
Screw fasteners 13, 1 across both side plates 8, 8 of
4, the link is supported by a pair of links 9, 9 which are pivotally connected by a screw plate 6, and the link By moving the other ends of the links 9, 9 along the elongated holes 11, the swash plate 6 can be adjusted to a desired cutting angle using its tip as a fulcrum, while the rear end of the links 9, 9 Loosely tighten the screw fastener 14 inserted through the elongated hole 9a provided in the link 9,
By moving one end of the swash plate 9 along the elongated hole 9a, the swash plate 6 can be moved back and forth to adjust the required angle cut amount l (Fig. 2). By loosening and tightening the tools 13 and 14 simultaneously or repeatedly, it is possible to adjust the desired accurate cutting angle and angle cutting amount.

Further, by rotating the angle cutting guide member 5 using the screw fastener 14 that fastens one end of the links 9, 9 as a fulcrum, the swash plate 6 is withdrawn from the upper surface portion 1a of the table 1, and the swash plate 6 is withdrawn from the upper surface portion 1a of the table 1. A workpiece M' placed on the upper surface portion 1a of the table 1 can be cut at right angles to the upper and lower surfaces of the workpiece M'.

(Example) Examples of the present invention will be described below based on the drawings.

FIG. 1 shows an angle cutting machine according to the present invention, which is capable of performing not only angle cutting but also right angle cutting. In this figure, reference numeral 1 denotes a table, and a circular saw 3 is connected to a slit 2 extending in the front-rear direction, which is provided in the center of the upper surface 1a.
protrudes, and this circular saw 3 is rotated by an electric motor 4 installed on the underside of the table 1. Incidentally, this circular saw 3 is a circular saw exclusively used for construction materials such as stone, concrete blocks, tiles, and bricks. Reference numeral 5 denotes an angle cutting guide member disposed on the upper surface 1a of the table 1 through the circular saw 3 on the left side of the circular saw. The swash plate 6 has a downward slope in a direction approaching the swash plate 6, and the swash plate 6 has a lower edge that projects upward from the swash plate except for a portion 7a into which the circular saw 3 can be fitted. A protruding strip 7 for holding the workpiece in an inclined state and slidingly guiding the workpiece parallel to the circular saw surface, and a swash plate 6
are connected to the lower end of the swash plate 6, i.e., the upper surface 1a of the table 1, and have circular arc-shaped elongated holes 11 whose arc centers are at the lower end of the swash plate 6, i.e., the top surface 1a of the table 1. A pair of side plates 8, 8, one end of which is pivotally attached to both side surfaces 1b, 1b of the table 1 by a screw fastener 14, and the other end of which is attached to the side plates 8, 8.
It consists of a pair of links 9, 9 which are pivotally connected to each other by screw fasteners 13, and each side plate 8 has a first
As shown by the solid line in the drawings and FIG.
The right end of a is cut out into a substantially L-shape to form a notch 10.
is formed.

The screw fastener 13 on the swash plate 6 side includes a screw pin 13a that engages with the side plate 8 and whose tip end passes through the arcuate long hole 11 and the other end of each link 9;
A wing nut 13 pivotally connects the other end of each link 9 to the side plate 8 by screwing into the screw pin 13a.
It is composed of b. Further, the screw fasteners 14 on the table 1 side are connected to each side surface portion 1b of the table 1.
A screw pin 14 protrudes from the top and has its tip inserted into an elongated hole 9a drilled at one end of each link 9.
a, and a tightening head 14b that is screwed onto the tip of the threaded pin 14a to pivotally connect one end of each link 9 to the table 1. Therefore, with the tightening head 14b and wing nut 13b relaxed, the swash plate 6 can be freely moved in both left and right directions in FIG. 2, and by tightening the tightening head 14b, the link One end of the link 9 can be pivoted to the table 1 to prevent horizontal movement of the swash plate 6, and the other end of the link 9 can be pivoted to the side plate 8 by tightening the wing nut 13b. When connected, rotation of the swash plate 6 can be prevented.

15 is the angle cutting guide member 5 attached to the table 1.
This guide member 15 is arranged on the upper surface of the table 1, facing the circular saw surface (the right side of the circular saw 3) and parallel to the circular saw surface. Backing plate 16 and table 1
A guide rod 20 is rotatably supported by supporting pieces 18 and 19 on both sides of the bracket 17 attached to the front side surface of the saw, and extends in a direction perpendicular to the circular saw surface (left-right direction). A slide block 21 that is axially slidable and rotatably supported, and has one end of a backing plate 16 disposed on the upper surface of the table 1 fixed to its upper end.
A fixing screw 22 with a wing nut for fixing the block 21 to the guide rod 20 is screwed into the slide block 21, and a threaded portion 20a is formed at the end of the guide rod 20 on the support piece 19 side. A nut 23 for fine adjustment of the backing plate is screwed onto this threaded portion 20a, and this nut 23 itself is rotatably supported by a support piece 19, and the guide rod 20 is attached to the other support piece 18. A fixing screw 24 with a wing nut is screwed in for fixing to. Further, the abutment plate 16 includes a horizontal plate portion 16a that slides on the top surface of the table 1, and a horizontal plate portion 16a that slides on the top surface of the table 1.
It is formed into an L-shaped cross section by a vertical plate part 16b which is vertically disposed on one side edge of the circular saw face and faces the circular saw surface. A push button 25 for operating the electric motor is installed on the front side of the table 1.

Next, the operation of the cutting machine having the above-mentioned configuration will be explained. First, when cutting one end of the workpiece M at a predetermined cutting angle, with both screw fasteners 13 and 14 relaxed, place the screws on the table 1 as shown by solid lines in FIGS. 1 and 2. The swash plate 6 is horizontally moved as appropriate, and the screw fastener 14 is fastened to fix one end of the link 9 to the table 1 to prevent horizontal movement of the swash plate 6. The horizontal movement of the swash plate 6 is allowed by the elongated hole 9a of the link 9, and the angular cutting amount l (FIG. 2) of the workpiece M can be set to a desired amount.

Next, the swash plate 6 is appropriately rotated around the tip of the swash plate 6 that is supported in contact with the table 1, and the screw fastener 13 is fastened to fix the other end of the link 9 to the side plate 8. and prevents rotation of the swash plate 6. Rotation of the swash plate 6 is allowed by the arc-shaped elongated hole 11 of the side plate 8, and the cutting angle of the workpiece M can be set at a predetermined angle. At this time, the circular saw 8 is fitted into the cut out circular saw insertion part 7a of the protruding strip 7, and is attached to the lower edge of the swash plate 6 in a non-contact manner. After setting the guide member 5 for angle cutting in this way, the workpiece M is brought onto the guide member 5, and the bottom surface of the workpiece M is placed on the upper surface of the swash plate 6, and one end surface is While the circular saw 3 is rotated and the workpiece M is pushed along the swash plate 6 and the projection strip 7, one end of the workpiece M is The section is cut diagonally with a rotating circular saw 3.
In this case, the cut surface by the circular saw 3 passes through the ridgeline on the bottom side of the workpiece M. Once the angle cutting of one end is completed, the workpiece M is rotated to change its position, and the other end is angle-cut in the same manner.

Next, the workpiece M′ is cut at right angles, that is, the workpiece
When cutting in a direction perpendicular to the upper and lower surfaces of M', the angle cutting guide member 5 is rotated using the screw fastener 14 pivotally attached to one end of the link 9 as a fulcrum, as shown in FIG. 2, the swash plate 6 is withdrawn from the top surface 1a of the table 1, and the top surface 1a of the table 1 is opened.
Place the workpiece M' to be cut on top a, place one end of it against the vertical plate part 16b of the backing plate 16, and slide the backing plate 16 on the top surface of the table 1 to set the cutting length (or cutting width). adjust. To set this cutting length, first tighten the fixing screw 24 to fix the guide rod 20 to the support piece 18, then loosen the fixing screw 22 and tighten the slide block 2.
1 along the guide rod 20, the backing plate 16 is moved forward and backward relative to the circular saw surface to determine the approximate cutting length, and then the fixing screw 22 is tightened to fix the slide block 21 to the guide rod 20. The fixing screw 24 is loosened to allow the guide rod 20 to move in the axial direction relative to the support piece 18, and the fine adjustment nut 23 is rotated to displace the guide rod 20 in the axial direction to set an accurate cutting length.

Once the settings have been completed, push the workpiece M′ and press the
M' can be cut at a right angle using circular saw 3.

(Effect of the invention) As explained above, according to the angle cutting machine of the invention, the inclination angle of the swash plate constituting the angle cutting guide member can be adjusted freely through the arc-shaped long hole bored in the side plate. Since the angle of inclination can be set as appropriate depending on the cutting angle of the workpiece, there is no need to replace the guide member each time the cutting angle of the workpiece changes, unlike in the past. This eliminates these inconveniences and improves work efficiency.

In addition, since one end of the link is pivotally attached to the surface of the table side with a screw fastener through an elongated hole formed in one end, it is possible to cut the angle on the table in the case of the angle cutting described above. By appropriately moving the guide member, the amount of angular cutting of the workpiece placed thereon can be set accurately to a desired amount.

Further, according to the present invention, since the angle cutting guide member is pivotally connected to the side surface of the table via the link, the angle cutting guide member is withdrawn from the table top surface by rotating the link, and the workpiece is removed. The machine can be placed directly on a table and the workpiece can be cut at normal right angles using a circular saw, and one cutting machine can be used for both angle cutting and right angle cutting. and can be used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an angle cutter showing an embodiment of the present invention, and FIG. 2 is a partially vertical sectional front view showing the same cutting machine in use. 1...Table, 1a...Top part of table,
1b... Side part of the table, 3... Circular saw, 5...
Angle cutting guide member, 6... Swash plate, 7... Projection piece, 7a... Circular saw insertion part, 8... Side plate, 9... Link, 9a... Long hole, 11... Arc-shaped long hole ,1
3, 14...Screw fastener, M, M'...Work material.

Claims (1)

[Scope of utility model registration request] An angle cutting machine comprising a guide member for angle cutting provided on one side of a circular saw that protrudes from a required part of the upper surface of the table, the guide member forming a downward slope in a direction approaching the circular saw surface. A swash plate, and a lower edge of this swash plate that protrudes upward except for a portion into which a circular saw can fit, and together with the swash plate, the workpiece is held in an inclined state and slid parallel to the circular saw surface. A protruding strip for guiding the movement, and an arcuate elongated hole that is connected to hang down from both ends of the swash plate and whose arc center is at a position corresponding to the lower edge of the swash plate. A pair of side plates, one end of which is pivotally attached to the side surface of the table with a screw fastener through an elongated hole formed in one end, and the other end is screwed into each side plate through the arcuate elongated hole. A cutting machine for angle cutting of building materials such as stone, which consists of a pair of links that are pivotally connected by a fastener.