JPH0444323Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a device for regulating the sliding amount of a circular saw portion having a saw blade during cutting in a sliding table circular saw.

[Background of the idea]

The prior art will be explained using FIGS. 1 and 2.

Normally, when cutting one workpiece 2 with the maximum cutting width L1, the saw blade 16 is kept in the A position and
The circular saw part 14 is pulled forward until the support 11 hits the holder 6, the saw blade 16 is pushed down to position B, and the circular saw part holder 10 is pushed backward until it hits the holder 6 for cutting.

However, when cutting a workpiece having a width of L2, which is smaller than L1, it is difficult to know how much to pull the circular saw part 14 toward you and push down the saw blade 16, resulting in a problem that sometimes uncut parts are left uncut. .

In addition, as shown in Fig. 2, when cutting the workpiece 2 during grooving etc. is stopped midway (cutting is stopped at the L4 dimension in Fig. 2), the L4 position of the workpiece 2 is stopped. It is necessary to make a mark and stop the slide of the circular saw part while aligning it with the cutting edge of the saw blade 16.
Workability was extremely poor.

[Purpose of invention]

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to improve operability and work efficiency when machining a wide workpiece.

[Summary of the idea]

The present invention focuses on the fact that if the sliding amount of the circular saw section is regulated according to the width of the material to be cut, efficient cutting can be achieved with the minimum amount of sliding. A removable restricting stopper is provided, and by attaching and removing the stopper and changing the mounting position depending on the cutting range, the side of the holder and the side of the stopper can be brought into contact at any position to regulate the sliding amount of the circular saw part. However, it is devised to restrict the cutting range of the material to be cut.

[Example of idea]

An embodiment of the present invention will be explained with reference to FIGS. 1 to 3.

In the figure, a fence 3 that supports a workpiece 2 is fixed to the upper surface of a base 1. A turntable 4 is fitted into the base 1, and the turntable 4 is held by the base 1 by a turntable holder 5 and is rotatable in the horizontal direction.

A holder shaft 7 is provided at the rear end of the turntable 4, and the axis of the holder shaft 7 is aligned with the turntable 4.
It is positioned so that it almost coincides with the top surface. This holder shaft 7 connects the turntable 4 and the holder 6.
are connected. A long hole (not shown) is formed in the holder 6 around the holder shaft 7, and a bolt 8 is inserted into the long hole.
is inserted through the turntable 4, and is screw-fitted to the turntable 4. When the bolt 8 is loosened, the holder 6 can tilt freely within the range of the elongated hole using the holder shaft 7 as a fulcrum, and when the bolt 8 is tightened, the holder 6 can be fixed at any position. The holder 6 is held tiltably in order to obliquely cut the material to be cut.

Two through holes 6a parallel to the top surface of the turntable 4 are bored above the holder 6, and these through holes 6a
A sliding holding member (not shown) is provided inside the through hole 6a.
Two guide bars 9, which serve as sliding members arranged side by side on the left and right, are respectively inserted inside. The guide bar 9 slides parallel to the upper surface of the turntable 4 and in the front-rear direction by the sliding holding member. Guide bar 9
A circular saw part holder 10 is provided at the front end of the bar, and a support 11 for preventing the guide bar 9 from coming off is provided at the rear end.
As a result, the circular saw part holder 10, the guide bar 9,
The support 11 is integrally slidable in the horizontal direction with respect to the upper surface of the base 1. In addition,
A knob 12 fixes the sliding movement of the guide bar 9, and is screwed onto the upper end of the holder 6 to press and fix the guide bar 9.

The circular saw part holder 10 has a circular saw part 14 that can freely swing up and down with respect to the base 1 using the shaft 13 as a fulcrum.
is pivoted. A motor 15 is installed in the circular saw section 14.
The saw blade 16 is rotatable by a power transmission means (not shown). Moreover, the circular saw part 14 usually
It is pushed upward by a spring 17. Reference numeral 18 denotes a bolt, which is screwed into the lower end side surface of the circular saw part holder 10, and the head of the bolt 18 is connected to the circular saw part 14.
It is provided so as to face the bottom surface of the The bolt 18 swings the circular saw part 14 downward and is placed at an appropriate position relative to the upper surface of the base 1 (usually at a position slightly lower than the position of the upper surface of the base 1 on the blade surface of the saw blade 16).
The circular saw part 14 abuts against the bolt 18 and serves as a lower limit stopper for the circular saw part 14 so that it does not fall from this position.

The stopper 19 is fitted onto the outer periphery of the guide bar 9, and the screw 20 is tightened to fix the stopper 19 to the guide bar 9. Further, as shown in FIG. 3, the stopper 19 is divided into two parts with the pin 21 as the fulcrum, and by removing the screw 20, the stopper 19 can be separated as shown by the dashed line with the pin 21 as the fulcrum.
9 opens, allowing easy attachment and detachment from the guide bar 9.

In the above configuration, when the width of the workpiece 2 is less than L3, the rear side surface of the circular saw part holder 10 is abutted against the front side surface of the holder 6, and the knob 12 is pressed against the front side surface of the holder 6.
is tightened to prevent the circular saw portion 14 from sliding back and forth, and cutting is performed by pushing the saw blade 16 down from position A to position B.

When the width of the material to be cut 2 is L1 (maximum cutting width), remove the stopper 19, loosen the knob 12, pull the saw blade 16 toward you by the full sliding amount while keeping it in the A position, and then , the saw blade 16 is pushed down to make a cut in the material 2 to be cut, and is slid back and forth in that state to cut a wide material 2 to be cut.

If the width of the workpiece 2 cannot be cut by swinging only, such as L2, move the stopper 19 to a position where no uncut parts of the workpiece 2 will be left (position of the stopper 19 in Fig. 1), and perform the above procedure. Using a similar cutting method, cutting can be done with a minimum amount of sliding, making the work extremely efficient.

As shown in Fig. 2, when you want to stop halfway (L4 dimension) to perform grooving etc. on the workpiece 2, move the stopper 19 between the holder 6 and the circular saw holder 1.
0 and set it at an appropriate position (the position of the stopper 19 in FIG. 2). With the saw blade 16 in position A, move the holder 6 forward until it hits the support 11, and push down the saw blade 16. (The saw blade 16 is in the C position.) While in the C position, slide the circular saw 14 backward until the stopper 19 hits the holder 6. The saw blade 16 will stop at the L4 position and move to the D position. Become.

In addition, in FIG. 2, cutting in the height direction of the workpiece 2 is midway through, but it is possible to do so by positioning the set height of the bolt 18 upward and regulating the lower limit position of the saw blade 16. becomes.

The present invention is most effective when processing a large number of workpieces of the same size, and can provide extremely efficient work.

In addition, the stopper 19 is as shown in FIG.
The same operation is possible even if integral stoppers 19, which are not removable, are fitted to the guide bars 9 at the front and rear of the holder 6, respectively.

[Effect of idea]

According to the present invention, the amount of back and forth sliding of the circular saw part is regulated, so that it can be adjusted according to the width of the material to be cut.
The material to be cut can be cut with the minimum amount of sliding, providing extremely efficient work.

In addition, since the stopper is removable, by changing the position of the stopper, you can control the amount of sliding forward or backward with one stopper, and when the stopper is removed, the sliding amount exposed from the holder can be adjusted. Since the sliding amount is increased by the length of the member, there is no waste in the product and it has the excellent effect of being able to be made more compact.

[Brief explanation of the drawing]

1 and 2 are side views of an embodiment of the present invention, with FIG. 1 showing the state during slide cutting, and FIG. 2 showing the state during grooving. FIG. 3 is a longitudinal sectional view of the stopper, and FIG. 4 is a longitudinal sectional view showing another embodiment. In the figure, 9 is a guide bar, 19 is a stopper, 20 is a screw, and 21 is a pin.

Claims (1)

[Claims for Utility Model Registration] (1) A base that supports a workpiece, a holder provided at the rear of the base, and a base supported above the holder parallel to the upper surface of the base so as to be slidable back and forth. A sliding tabletop circular saw comprising a sliding member, a circular saw holder held at one end of the sliding member, and a circular saw pivotally supported on the circular saw holder so as to be able to swing vertically with respect to the base. In the saw, a stopper is attached to an arbitrary position on the outer periphery of the sliding member, and when the circular saw part slides, the stopper comes into contact with the holder to regulate the sliding amount of the circular saw part,
A sliding amount regulating device for a sliding desk circular saw, characterized in that the cutting range of the cut material is regulated. (2) When the stopper is made detachable from the sliding member to restrict the amount of backward sliding of the circular saw section, the stopper is attached to the front side of the holder to restrict the amount of forward sliding of the circular saw section. A sliding amount regulating device for a sliding desk circular saw according to claim 1 of the utility model registration claim, characterized in that a stopper is attached to the rear side of the holder.