JPS5815146Y2 - Stone cutting equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a stone cutting device for cutting semicircular grooves for modifying the surfaces of main pillars and the like used in the outer fence of stone towers.

Traditionally, cutting semicircular grooves on the circumferential surface of stone was done manually using a chisel made of matched metal, which required a lot of time and effort. required considerable skill.

In view of the above points, the purpose of this invention is to provide a stone cutting device that allows anyone to easily and quickly cut a semicircular groove into the peripheral surface of a stone to create a beautiful finish.

Next, this invention will be explained based on an embodiment shown in the accompanying drawings.

Reference numeral 1 denotes a stone mounting table, and the stone mounting table 1 is provided with a support member 2 for supporting the stone a placed on its upper surface, and a ruler member 3 perpendicular to the corresponding member 2.

The stone mounting table 1 may be box-shaped with a certain height, but in the case shown, a jack fixing plate 5 is provided in the center of a base 4 made of square steel.
It can be moved up and down by a jack 6 attached to the top surface.

In addition, the stone mounting table 1 has bolts 7 installed at its corners.
... is raised from the corner of the base 4...
It penetrates through a long hole 9 provided in the upper part of... and can be tightened from the outside with a nut 10, so that it can be fixed at a desired height.

The support member 2 is formed by a horizontal rod extending between the upper extensions of the adjacent support columns 8, 8.

Further, the ruler member 3 is constructed by installing a horizontal rod above the support member 2 between the upper extension portions of the pillars 8, 8 in a direction perpendicular to the support member 2.

Reference numeral 11 denotes a bolt screwed at right angles into a bracket 11' provided parallel to the lower side of the ruler member 3, and the head of the bolt 11 can protrude inward from the ruler member 3; This is for determining the cutting position of the stone material a on the stone material mounting table 1.

Reference numeral 12 denotes a stone cutter, and the stone cutter 12 includes a motor part 14 having a handle 13 on the upper surface and a rotary cutting blade 16 fixed to an off-shaft 15 of the motor part 14.

The motor part 14 is attached to the base 17 via a pin 18 so as to be rotatable in the vertical direction, and is engaged with a guide groove member 19 raised from the base 17 on the rotation side of the motor part 14. The shaft rod 20 protrudes, and the shaft rod 20 can be tightened to the guide groove member 19 by operating a lever 21.

The stone cutter 12 is attached via a base 17 to the upper surface of a base plate 23 provided with a guide plate 22 on the lower surface so as to be able to move along the ruler member 3 of the stone mounting table 1.

In this case, the lower part of the rotary cutting blade 16 of the stone cutter 120 passes through the through hole 24 provided in the base plate 23 and projects to the lower surface.

This amount of protrusion can be adjusted by operating the lever 21 on the guide groove member 1.
Adjustment is made by loosening the shaft rod 20 that engages with the shaft 9 and rotating the motor part 14 up and down.

Further, the rotary blade sub-blade 16 is oblique with respect to the advancing direction of the base plate 23 (the direction of the arrow in FIG. 2).

The inclination angle θ of the rotary cutting blade 16 may be determined to be 20° or around 20°, but is not particularly limited.

The guide plate 22 provided on the lower surface of the base plate 23 is a shaped member 2
5 and is attached to the inner ends of two bolts 27 held by screwing nuts 26 into the inside and outside thereof, and is provided on the lower surface of the base plate 23 via this 1-shaped member 25. .

In this case, the type 1 member 25 is attached to the base plate 23 at one end and the middle part by bolt/nut fasteners 28, 28', and the intermediate fastener 28' is attached to the base plate 23. It can move within the arcuate groove 29 and can be tightened at any position.

That is, the guide plate 22 is connected to the first-shaped member 25 as shown in FIG.
By moving the fastener 28 at one end, the angle of its attachment can be adjusted within the range of the arcuate groove 29.

Further, the guide plate 22 can be attached by adjusting the entrance and exit of the two bolts 27 that hold the guide plate 22 at the inner end, as long as the angle is slightly adjusted.

Therefore, even when the inclination angle θ of the rotary cutting blade 16 of the stone cutter 12 is fixed constant on the base plate 23, the guide plate 22
By adjusting the angle, the angle of the base plate 23 with respect to the direction of movement can be arbitrarily selected.

Reference numeral 30 connects the motor part 14 of the stone cutter 12 to the base plate 23.
As shown in FIG. 7A, the fixing metal fitting 30 consists of two bolts 31, 31' installed on the base plate 23 on both sides of the motor part 14, and the motor part 14 as shown in FIG. 7A. 31
．． It is composed of a plate-like body 34 having holes 32 and 32' at both ends that can be loosely fitted into the plate-like body 31', and nuts 33 and 33' that tighten the inside and outside of the plate-like body 34.

That is, when the outer nut 33 is loosened and the inner nut 33' is tightened, the plate-shaped body 34 moves upward, and the motor section 14 can be fixed by being pushed up from its lower surface.

This fixing fitting 30 also has two poles as shown in Fig. 7B.
1.31' is not directly planted on the base plate 23, but the plate-like object 34'
The plate-like member 34' may be fixed to the base plate 23 by planting it on the upper surface of both ends thereof, or if there is any other suitable means, it may be used.

35 is a handle fixed to the end of the base plate 23.

As described above, this invention consists of a stone mounting table 1 and a stone cutting machine 12.
The stone mounting table 1 has a stone a placed on its upper surface.
A guide plate 22 is provided on the lower surface of the stone cutter 12 so that it can move along the ruler member 3 of the stone mounting table 1. The rotary cutting blade 16 is attached to the upper surface of the base plate 23 so as to protrude from the lower surface of the plywood and be oblique to the direction of movement of the base plate 23, so that the stone cutting tool 12 can be operated with one hand. Hold the handle 13 and turn on the switch (not shown) of the motor part 14 with the other hand to turn the rotating cutting blade 26.
While rotating and supporting the handle 35 of the base plate 23, while keeping the plywood 2'k horizontal and inscribing the guide plate 22 on the lower surface in the ruler member 3 of the stone mounting table 1, rotate it in the direction of the arrow as shown in the second figure. When it is moved forward, the lower part of the rotary cutting blade 16 protruding from the lower surface of the base plate 23 bites into the stone material a and starts cutting.

This rotary cutting blade 16 is oblique with respect to the advancing direction of the base plate 23, and as it advances obliquely, the stone material a is cut to a constant width as shown in FIG. 8A, and also as shown in FIG. 8B. The cut surface becomes a semicircular groove.

As described above, according to this invention, the width of the cutting surface of the rotary cutting blade 16 can be freely determined by its inclination angle, and a cutting blade with a thickness of - several times the width of the cutting surface can be used to cut a large width. Can cut semicircular grooves.

This means that when using a diamond blade as a cutting blade, a cheap and thin one is sufficient, which is extremely economical, and cutting can be done by simply moving the base plate 23 along the ruler member 3 of the stone mounting table 1. The work is simple and can be formed in a short time, and the finish is beautiful.

Further, according to this invention, the motor part 1 of the stone cutting machine 12
4 is fixed by pushing up from the bottom surface with a fixing fitting 30 attached to the base plate 23, so the motor part 14 is fixed to the plywood at two places, front and back, along with the fixation of the base 17. Since the rotary cutting blade 16 does not shake during rotation, it is possible not only to finish the inner surface of the semicircular groove cut into the stone material a extremely smooth, but also to make the rotary cutting blade 16
As mentioned above, the deflection due to the cutting resistance that occurs when the base plate 23 advances obliquely with respect to the advancing direction is also completely suppressed.
This provides various excellent effects such as less damage to the rotary cutting blade 16 itself and enabling long-term use.

[Brief explanation of the drawing]

The figures show one embodiment of this invention; Fig. 1 is a perspective view of the whole, Fig. 2 is a plan view showing the relationship between the stone mounting table and the stone cutting tool, Fig. 3 is a front view of the same, and Fig. 4 is a front view showing how the stone cutter is attached to the base plate, Figure 5 is a side view of the same, Figure 6 is a plan view showing the rotating state of the guide plate, and Figures 7A and B are the stone cutter. A cross-sectional view and a perspective view of a part of the motor's fixing fittings,
Fig. 8A, B (1 is a plan view and a cross-sectional view showing the cutting state of stone. 1... Stone mounting table, 2... Bending member,
3... Ruler member, 12... Stone cutter, 14... Part of motor, 16... Rotating cutting blade, 22... Guide plate, 23...
Base plate, 30...Fixing metal fittings for part of the motor.

Claims (1)

[Scope of utility model registration request] It consists of a stone mounting table and a stone cutting tool, the stone mounting table is equipped with a support member for side-supporting the stone placed on its upper surface, and a ruler member perpendicular to the corresponding member, and the stone cutting tool is connected to the stone mounting table. A rotary cutting blade is attached to the upper surface of a plywood board with a guide plate provided on the lower surface so as to be able to move along the ruler member so that it protrudes from the lower surface of the base plate and is oblique to the direction of movement of the base plate, and A stone cutting device characterized in that a fixing fitting for pushing up and fixing a part of the motor of the stone cutter from below is attached to the base plate.