JPH0625298Y2 - Parallel saw ruler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a parallel ruler for guiding a work in a circular saw machine.

(Prior Art) As a conventional technology, there is, for example, Japanese Utility Model Laid-Open No. 60-154101.

(Problems to be solved by the invention) In a circular saw machine having a circular saw blade whose upper end is exposed on the table surface, the workpiece is guided in a direction parallel to the circular saw blade to define the cutting width of the workpiece. The parallel ruler is used with the parallel ruler selectively moved to both sides of the circular saw blade, but in the conventional circular saw machine, the exposed part of the circular saw blade hinders the movement of the parallel saw blade. It becomes impossible to move the parallel ruler to the opposite side of, and after removing the parallel ruler at one table end,
Since it was attached again at the other table end, there was a problem that the means for moving the parallel ruler from one side of the circular saw blade to the other side became extremely complicated.

It is an object of the present invention to solve the above problems and simplify the operation of moving the parallel ruler.

(Means for Solving Problems) The parallel ruler of the circular saw machine of the present invention has a front side of the table of the circular saw machine which is horizontally moved to both sides of the circular saw blade whose upper end is exposed on the table surface. The ruler body is installed so that it can be converted into a horizontal posture and a rearwardly inclined posture, and the ruler body has guide surfaces parallel to the circular saw blade on both sides. The front end of the ruler is connected and the main body of the ruler is installed on the table.

(Operation) A guide surface parallel to the circular saw blade whose upper end is exposed on the table surface is formed on both side surfaces, and a ruler body in which all end portions are connected to a horizontally movable ruler base is attached to the circular saw blade. When moving from one side to the other side, the ruler body in a horizontal posture is converted to a rearwardly inclined posture, and then the ruler body is moved together with the ruler base from one side to the other side of the circular saw blade. The circular saw blade is horizontally moved in one direction to pass above the circular saw blade, and the posture of the ruler body moved to the other side of the circular saw blade is restored to the horizontal posture.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.

The table 1 of the circular saw machine M is installed on the upper end of a support leg (not shown), and a horizontally elongated front guide bar 3 installed along the horizontal direction is attached to the front end surface 1a thereof, while the rear end surface 1b thereof is attached. A horizontally long rear guide bar 4 installed along the horizontal direction is attached.

The circular saw blade 5 is installed with its upper end and its vicinity exposed on the table surface, and is rotationally driven by a motor (not shown) mounted slightly below the table 1.

Safety cover 6 that covers the exposed area near the upper edge of the circular saw blade 5.
Is installed on the table 1 so as to be tiltable in the vertical direction and capable of coming into contact with and separating from the table surface.

The ruler base 7 is engaged with the front guide bar 3 so as to be horizontally slidable, and is connected to the front end of the table 1 via the front guide bar 3 so as to be horizontally movable to both sides of the circular saw blade 5, and at one end thereof. The operation shaft 8 is horizontally inserted, and a knob 9 for rotating the operation shaft 8 in the forward and reverse directions is fitted to an outer end portion of the operation shaft 8 while an inner end portion of the operation shaft 8 is inserted. Is fitted with a pinion 11 which is meshed with a rack gear 10 arranged in parallel with the front guide bar 3 and biased inward by a spring 12, and a knob 9 is rotated to move a ruler base 7 to a shaft of a circular saw blade 5. It can be moved horizontally in a direction parallel to the heart a,
Further, the lock screw 13 screwed onto the ruler base 7 can be rotated to fix the ruler base 7 to the front guide bar 3 at each movement adjustment position.

Next, the parallel ruler R for guiding the work in the horizontal direction parallel to the side surface of the circular saw blade 5 and defining the cutting width of the work will be described. The guide surfaces 15a, 15 parallel to the side surface of the circular saw blade 5 will be described.
A hollow ruler body 15 in which a is formed parallel to both side surfaces is installed on the table 1 along the front-rear direction, and a support portion 16 having a substantially inverted L-shaped side surface is formed at the front end thereof. The support portion 16 is inserted into the support portion 16 and is coupled to the projecting portion 7a of the ruler base 7 via a pin 17 having a horizontal axis line b arranged in parallel with the axis a and arranged at the front end portion of the ruler body 15. It is supported so as to be tiltable in a direction parallel to the guide surface 15a with the horizontal axis b as a tilt fulcrum. A stopper 16a that abuts on the front surface of the ruler base 7 and defines the turning end of the support portion 16 is formed at the lower end of the support portion 16 so as to project. The ruler body 15 is connected to the ruler base 7 via a support portion 16 so as to be movable jointly in the direction of the axis a and tiltably about a horizontal axis b as a tilt fulcrum, and is horizontally laid on the table 1 along the front-rear direction. It is converted into a posture and a backward inclined posture. When the ruler body 15 is tilted upward and converted to a rearwardly inclined posture, the ruler body is
15 retracts from the side of the circular saw blade 5 and the safety cover 6 to the front upper side thereof, and in this state, the parallel ruler R can be moved in the direction of the axis a by passing over the edge of the circular saw blade 5. .

The rear end of the ruler body 15 can be moved back and forth in the front-rear direction, and when it moves forward, the ruler body 15 is fixedly locked to the table 1 in a horizontal posture and locked, and when retracted, the ruler body 15 is cut off from the table 1 and released. The clamper 18 is connected. A slide portion 18a slidably engaged with the rear end of the ruler body 15 at the front and rear portions of the clamper 18, and a vertically long locking portion exposed to the outside of the ruler body 15 and contacting and separating from the rear guide bar 4. 18b and are formed. The clamper 18 is always biased rearward by a spring 19 interposed between the front end surface of the ruler body 15 and the hooking portion 18b, and when the clamper 18 is pressed forward, the hooking portion 18b of the clamper 18 is pressed. Is the rear guide bar 4
Then, the ruler main body 15 in the horizontal position is fixed to the table 1 and locked in the horizontal position.

The lock lever 20 installed near the front end of the ruler body 15 for switching the ruler body between the locked state and the unlocked state is that the support shaft 21 that is laid inside the ruler body 15 has the lower end portion of the lock lever 20. The disc-shaped base 20a formed in the above is fitted into the eccentric position and is coupled to the front portion of the ruler body 15 so as to be tiltable in the front-rear direction.

A connector lever 22 that connects the lock lever 20 and the clamper 18 to each other in an interlocking manner is inserted in the vicinity of the lower end of the ruler body 15 along the front-rear direction, and is formed near the front end of the ruler and bent slightly upward to the front locking. The end 22a is locked at the eccentric position of the base 20a of the lock lever 20, while the threaded portion 22b formed near the rear end thereof penetrates the hooking portion 18ab of the clamper 18 and the hooking portion 1b.
A rear end portion of the connector lever 22 is fastened to the clamper 18 so as to be movable in the front-rear direction by a lock nut 23 that is projected rearward of the 8a and screwed into the screw portion 22b.
A cap 24 is coated on the tip of the screw portion 22b. Then, when the knob 20b of the lock lever 20 is pulled forward while the clamper 18 is hooked to the rear guide bar 4, the base 20a rotates counterclockwise together with the front locking end 22a of the connector lever 22, Lever 22 retracts and clamper
The 18 elastically retracts rearward so that the clamper 18 and the rear guide bar 4
And the main body 15 is moved to the table 1
When the knob 9 is rotated in a state in which the ruler body 15 is tilted upward and retracted from the side of the circular saw blade 5 to the front upper direction, the ruler body 1 is moved in the axial center a direction. Can be made. Further, when the lock lever 20 is tilted to the rear tilting end after the ruler body 15 is changed to the horizontal posture at any movement adjustment position, the base 20a is rotated clockwise in the drawing to move the front lever of the connector lever 22. The toe 22a circularly moves forward and upward of the support shaft 21 that serves as a rotation fulcrum of the base 20a, the connector lever 22 advances to the forward end and is locked at the forward end, and
The clamper 18 is pulled forward so that the hooking portion 18b of the clamper 18
Is pressed against the rear guide bar 4, the ruler body 15 is fixedly fixed to the table 1 and locked in a horizontal posture.

Next, the operation and effect of the embodiment having the above-mentioned configuration will be described.

In this example, the front end of the table 1 of the circular saw machine M is installed so that the upper end portion is horizontally movable to both sides of the circular saw blade 5 exposed on the table surface, and can be fixedly fixed to the table 1 at each moving position. The ruler base 7 is connected to the ruler base 7. The ruler base 7 is connected to the front end of the ruler body 15 which can be tilted in a direction parallel to the guide surface 15a and can be converted into a horizontal posture and a rearwardly inclined posture. The lever ruler main body 15 is installed on the table 1, and the rear end of the ruler main body 15 is installed so as to be able to move back and forth in the front-back direction. A clamper that sometimes releases the ruler body 15 from the table 1
18 are combined.

Therefore, when moving the parallel ruler R from one side of the circular saw blade 5 to the other side, after unlocking the locked state of the ruler body 15, the ruler body 15 is tilted upward and the side of the circular saw blade 5 is moved. When retracted from one side, the ruler body 15 can be moved above one of the edges of the circular saw blade 5 and moved from one side of the circular saw blade 5 to the other side. This has the effect of significantly simplifying the operation of moving the ruler body 15 to the other side.

(Effect of the Invention) Since the present invention is configured as described above, it has the effect of simplifying the operation of moving the ruler body from one side of the circular saw blade to the other side.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of an essential part, FIG. 2 is a sectional view taken along line XX of FIG. 1, and FIG. 3 is a partially cutaway side view of a parallel ruler. 4 is a schematic plan view of a circular saw machine. 1 ... table 5 ... circular saw blade 7 ... ruler base 15 ... ruler body 15a ... guide surface a ... axis center b ... horizontal axis R ... parallel ruler

Claims (1)

[Scope of utility model registration request] 1. A ruler base installed on the front end of a table of a circular saw machine such that the upper end of the table is horizontally movable to both sides of a circular saw blade exposed on the table surface. It can be converted into a horizontal posture and a rearward inclined posture,
A parallel ruler for a circular saw machine, characterized in that the front ends of ruler bodies having guide surfaces parallel to the circular saw blade formed on both side surfaces are joined together and the ruler body is installed on a table.