JPH0232333Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a saw blade lower limit position stopper device for a table-top cutting machine that has an improved saw blade lower limit position adjustment mechanism.

[Background of the idea]

A conventional saw blade lower limit position stopper device for a table cutter will be explained with reference to FIG. In the figure, reference numeral 1 denotes a base, and a vice 2 for fixing a workpiece 13 is fixed to the upper surface. 3 is a saw blade 12 whose lower end is fixed to the base 1 with a hinge and whose upper end cuts the material 13 to be cut;
A motor section 5 supporting a motor (not shown) that rotationally drives the is rotatably supported via a hinge shaft formed of a pin 4. Reference numeral 6 indicates a handle for cutting, and reference numeral 7 indicates a stopper fixed to the motor section 5 to regulate the lower limit position of downward rotation, and is adapted to abut against the upper surface of a stopper receiver 8 fixedly supported by the hinge 3. The stopper receiver 8 is formed by a bolt, is screwed onto the hinge 3, and is attached to the stopper 7 by the bolt head.
is supported and fixed by a nut 15. 11 is a saw blade axis of the saw blade 12.

Then, the handle 6 is held and the saw blade 12 is rotated up and down. When regulating the lower limit position of the saw blade 12, the bolt of the stopper receiver 8 is rotated after determining the lower limit position of the saw blade 12. After adjustment, the stopper 7 is brought into contact with the stopper 7, and the stopper receiver 8 is fixed to the hinge 3 with a nut 15. In this way, regulating the lower limit position of the saw blade 12 and cutting halfway through the workpiece 13 is achieved by attaching a joint plate to the workpiece 13 as shown in FIG. 8 and FIG. 9 of the side view of FIG. This is done when joining 14. When the handle 6 is lowered, the stopper 7 of the motor section 5 comes into contact with the stopper receiver 8, and the lower limit position of the saw blade 12 is regulated, so that the same depth of cut can be given to the workpiece 13.

In the conventional structure described above, it is inconvenient to loosen or tighten the nut 15 or to rotate the bolt stopper receiver 8. Furthermore, depending on the lower limit position regulation of the saw blade 12, the abutment part between the bolt stopper receiver 8 and the stopper 7 may be in line or point contact, resulting in instability in position regulation due to deformation, etc. was.

[Purpose of invention]

The present invention was devised in view of the above situation, and provides a saw blade lower limit position stopper device for a table-top cutting machine that allows the operation of regulating the lower limit position of the saw blade to be performed easily and reliably, and provides stable regulation. It is intended to provide.

[Summary of the idea]

The saw blade lower limit position stopper device for a tabletop cutting machine of the present invention has a base on which a vice for fixing the workpiece is fixed, and a hinge whose lower end is fixed to the base with a pin interposed at the upper end. A motor part that supports a motor that is freely supported and drives a saw blade that cuts the material to be cut, and a motor part that supports and restricts the lower limit position of the downward rotation of a stopper that is fixed to the motor part that rotates in the vertical direction. The stopper is provided with a stopper receiver fixed to the hinge, and the portion supported by the stopper receiver is formed in a concave arc shape;
The stopper shaft has a surface that contacts the stopper is formed in a convex arc shape, a screw is formed on the inner periphery, and a screw on the outer periphery that can be almost fitted to a part of the screw on the inner periphery, and the stopper shaft is freely displaceable in the vertical direction. A flat part is formed in the axial direction at a circumferential position opposite to the fitted stopper receiver and the position where the stopper receiver is fitted to the screw at a part of the circumference, and is fixed to the hinge. the stopper shaft, and a butterfly screw screwed into the stopper holder, the tip of which is in contact with the flat part with a part of the screw of the stopper holder fitted into a part of the screw of the stopper shaft; It has been established that

[Example of idea]

Hereinafter, the embodiment of the saw blade lower limit position stopper device of the table-top cutting machine of the present invention will be described, and the same parts as those of the conventional one will be denoted by the same reference numerals, and the explanation of the structure of the same parts will be omitted, and Figs.
This will be explained using figures. Fig. 1 is an explanatory diagram of the table-top cutting machine in its normal usage state, Fig. 2 is an explanatory diagram of the state in which the cut of the material to be cut is regulated, and Fig. 3 is an illustration of the stopper and stopper receiver shown in Fig. 1. 4 is a sectional side view of FIG. 3, and FIG. 5 is a sectional view taken along the - arrow in FIG. 3. In the figure, the stopper 7 is a stopper receiver 8.
The portion that comes into contact with is formed into a concave arc shape.
Further, the portion of the stopper receiver 8 that comes into contact with the stopper 7 is formed into a convex arc shape, and a thread groove is formed on the inner periphery. The stopper shaft 10 has a threaded groove on its outer periphery that can be substantially fitted into this threaded groove, and is loosely fitted in the stopper shaft 10 so as to be movable in the vertical direction. The stopper shaft 10 is fixed to the hinge 3. A flat portion 16 is formed in the axial direction at a position on the outer periphery of the stopper shaft 10, in which a part of the thread groove of the stopper receiver 8 is fitted into a part of the thread groove on the outer periphery of the stopper shaft 10, and at a position opposite to the axial center. There is.

Then, the stopper receiver 8 and the stopper shaft 1
With the respective thread grooves of 0 engaged with each other, the tip of the thumbscrew 9 screwed into the stopper receiver 8 in the radial direction is pressed against the flat part 16, so that the stopper receiver 8 is attached to the stopper shaft 10. It is designed to be fixed in any position. Therefore, when adjusting or changing the depth of cut of the saw blade 12, the thumbscrew 9 is moved back on the stopper receiver 8, and then the stopper shaft 1 is moved back.
When the thumbscrew 9 is tightened at a desired position, the thread grooves of the stopper receiver 8 and the stopper shaft 10 are fully fitted, as shown in FIGS.
Supported by Therefore, it is extremely easy to adjust the height of the stopper receiver 8, and since the stopper 7 is always in contact with the arcuate surface of the stopper receiver 8, it is stably supported. There is.

In this way, the saw blade lower limit position stopper device of the tabletop cutting machine of this embodiment locks the stopper receiver of the lower limit position support member to the stopper shaft by thread groove fitting and fixes it with a butterfly screw, and also attaches the stopper receiver to the stopper shaft in the vertical direction. Since the saw blade is configured to be movable, the operation for regulating the lower limit position of the saw blade can be easily and reliably performed. Further, since the stopper and the stopper receiver are in contact with each other on the arcuate surface, the stopper is stably supported.

[Effect of idea]

As described above, the saw blade lower limit position stopper device for a table cutter according to the present invention has the effect that the operation for regulating the lower limit position of the saw blade can be performed easily and reliably, and can be stably controlled.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the normal usage state of the embodiment of the saw blade lower limit position stopper device of the table-top cutting machine of the present invention;
Fig. 2 is an explanatory diagram of the device shown in Fig. 1 in a state where cutting is restricted, Fig. 3 is a detailed view of the stopper and stopper receiver of Fig. 1, Fig. 4 is a side sectional view of Fig. 3, Figure 5 is a cross-sectional view taken along the - arrow in Figure 3, and Figure 6 is a cross-sectional view of Figure 4.
An enlarged view of part A in the figure, Figure 7 is an explanatory diagram of the saw blade lower limit position stopper device of a conventional table-top cutting machine, Figures 8 and 9 are
The figures are explanatory diagrams of the splicing plate connection portion of the cut material cut with the lower limit position regulated by the cutting machine of FIG. 7. 1...Base, 2...Vise, 3...Hinge,
4...Pin, 5...Motor part, 7...Stopper,
8... Stopper receiver, 9... Butterfly screw, 10... Stopper shaft, 12... Saw blade, 13... Material to be cut, 16... Flat portion.

Claims (1)

[Scope of utility model registration request] The motor includes a base that supports a material to be cut, a hinge having a lower end fixed to the base, and a motor part supported at the upper end of the hinge so as to be rotatable in the vertical direction with respect to the base via a pin. A table-top cutting machine having a stopper and a motor for driving a saw blade for cutting a material to be cut, and a stopper receiver that engages with the stopper on the hinge,
A stopper shaft having a male thread formed on a part of its outer periphery is fixed to the hinge, and a stopper receiver is loosely fitted so as to be vertically displaceable, and the contact surface of the stopper with the stopper receiver is formed in a concave arc shape, A saw blade for a table-top cutting machine, characterized in that a contact surface with a stopper is formed in a convex arc shape, a female thread is formed on the inner periphery, and the stopper receiver is provided with a wing screw that comes into contact with the stopper shaft. Lower limit position stopper device.