JPH0517202Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a mounting device for mounting a workpiece to be cut on a circular saw machine.

(Prior Art) An example of the conventional art is Japanese Utility Model Publication No. 47-32229. As shown in FIG. 9 of the present invention, this publication states that the vicinity of one end of a long workpiece w is supported by the tip of a support member (holder metal fitting) s supported in a cantilevered manner on a base b. A work support mechanism is disclosed.

(Problem to be solved by the invention) In the case of the work support mechanism described above, the support member s is easily bent and deformed by the weight of the work w;
There are problems in that the height of the tip of the support member s tends to fluctuate, and in that it is troublesome to attach and detach the support member to the base b.

An object of the present invention is to solve the above-mentioned problems and provide a workpiece mounting device that can stably and properly support a long workpiece and that can be easily attached to and removed from a base.

(Means for Solving the Problems) The workpiece mounting device for the circular saw machine of the present invention has a support plate on which a part of the workpiece is mounted in a through hole penetrating the side wall of the base of the circular saw machine. The proximal end of an oblong holder attached to the distal end is inserted through the proximal end, and the proximal end is supported by the edge of the through hole, and the distal end of the holder is in contact with the installation surface. an adjustment screw that supports the distal end portion so as to be adjustable in vertical movement; an adjustment screw is screwed into the proximal end portion of the holder to prevent the proximal end portion from coming off when the distal end portion is supported by the adjustment screw; Further, a retaining portion is formed to allow the proximal end portion to be pulled out of the through hole when the holder is tilted upward or downward using the edge of the through hole as a fulcrum.

(Function) A horizontally elongated holder, on which a support plate on which a part of the work is mounted, is attached to its tip, is inserted into a through-hole that is inserted through the side wall of the base and into which the proximal end of the holder is inserted. The holder is supported on both sides by the hole edge and an adjusting screw attached to the distal end of the holder and in contact with the installation surface, and when the distal end is supported by the adjusting screw, the proximal end The proximal end is prevented from coming off by a retaining part formed in the through hole, and the proximal end is moved out of the through hole by tilting the holder upward or downward using the hole edge of the through hole as a fulcrum. Allows parts to be pulled out.

(Example) Next, a first example of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a base installed horizontally at the lower end of the circular saw machine M, and a support hole 1a is vertically penetrated near the center of the base.

Reference numeral 2 denotes a turntable that is horizontally rotatably arranged in parallel to the center of the base 1 for placing a workpiece thereon, and is protruded downward from the center of the base 1 and fitted into the support hole 1a of the base 1. It is horizontally slidably supported on the base 1 via the combined support shafts 2a,
A blade opening 2b is formed in the form of a slit in the upper part near the center, and a blade opening plate 2c is attached thereto.

3 is a screw 4A attached to one side wall 1b of the base 1.
Side inverted L fastened to allow vertical movement adjustment through
It is a mold-shaped adjusting plate that is vertically adjusted by screws 4B so that the height of its upper surface is aligned with the height of the upper surface of the turntable 2, and the workpiece is placed on the turntable 2 and the adjusting plate 3. It can be loaded horizontally over the entire length of the vehicle.

Reference numeral 5 denotes a guide rail attached on the base 1 in order to define the cutting posture of the workpiece against the side surface of the workpiece. The turntable 2 is elastically engaged with a turntable stopper 6 fitted so as to be elastically retractable in the vertical direction.
An engaging portion 5b for locking the guide rail 5 when horizontally rotated by 45° and 90° with respect to the ruler surface 5a of the guide rail 5 is provided in a recessed manner, and a screw hole 5c extending vertically through the guide rail 5 is provided with an engaging portion 5b. The screwing action of the set screw 8 screwed into this screw hole 5c presses against the top surface of the turntable 2 to restrict the rotation of the turntable 2, and the screwing back action of the set screw 8 allows the rotation of the turntable 2. In order to release the restriction, a lock pin 9 made of synthetic resin is inserted, and the lock pin 9 is tightened with a setscrew 8.
The turntable 2 can be locked in a state of being rotated by any angle by pressing .

10 is an arm erected on the upper surface of the rear end of the turntable 2; 11 is a blade case supported so as to be tiltable relative to the upper end of the arm 10 via a pin 12; A spring 13 suspended between the arm 10 and the lower end of the arm 10 is always biased in an upwardly tilted direction (direction P in the figure), and the arm 10 is fitted onto both ends of a pin 14 inserted through its base end. The cushions 15, 15 engage with the locking surface 10a formed on the upper end surface of the arm 10 to hold the blade case 11 in an upwardly inclined state. Side protrusion piece 1
1a comes into contact with a blade case stopper 16 screwed onto the arm 10, thereby defining the downwardly inclined end of the blade case 11.

17 is a motor housing horizontally attached to one side of the blade case 11 via a gear case 18; 19 is a blade shaft rotatably suspended in the blade case 11 and the gear case 18; and 21 is a motor of the motor. Pinion formed at the tip of the shaft, 2
0 is a gear fitted so as to mesh with the pinion 21, 22 and 23 are a pair of inner and outer flanges fastened to the tip of the blade shaft 19, and 24 are both flanges 2.
A disk-shaped blade is sandwiched between 2 and 23 and is mounted so as to be able to rotate together with the tip of the blade shaft 19. Approximately half of the blade is constantly covered by the blade case 11, and is attached to the turntable 2. The cutting angle of the blade 24 relative to the workpiece can be changed by horizontal rotation.

Reference numeral 25 denotes a center cap connected to the vicinity of the center of the outer surface of the blade case 11 so as to be rotatable and fastened at the rotation end, and a covered cylindrical protrusion 25a protrudes from the center of the center cap. The proximal end thereof is vertically rotatably supported via a connecting pin 26 to the blade case 11, while the outer end thereof has a butterfly head bolt 27 screwed into the blade case 11. A recessed engaging portion 25b is provided for removably engaging the blade, and when the engaging portion 25b is fastened with the butterfly head bolt 27, the protruding portion 25a is concentrically opposed to the blade shaft 19, and is centered. While the cap 25 is fixed to the blade case 11 in a manner that it is supported on both sides, the engaging portion 2
5b is released, one side of the center cap 25 is opened and the center cap 2
5 can be rotated in the P direction using the connecting pin 26 as a rotation fulcrum.

28 is fitted to the protruding portion 25a of the center cap 25 so as to be freely rotatable and is fastened via a screw 29 in order to cover the front lower side of the blade 24 as the cutting operation of the blade 24 progresses. It is a safety cover arranged side by side in an external manner on the blade case 11, and one end is connected to the center cap 2.
A return spring 30 in the shape of a clockwork spring, which is hooked to the safety cover 28 at its other end, is always biased in the opposite direction, and when the center cap 25 is tightened, the return spring 30 is latched to the safety cover 28, and when the center cap 25 is tightened, the return spring 30 is latched to the safety cover 28. When the center cap 25 is unfastened, the connecting pin 26 rotates as the center cap 25 rotates.
It is elastically rotated in the P direction using the fulcrum as the fulcrum.

Reference numeral 32 denotes an oblong holder that is detachably and horizontally rotatably locked to the base 1 and extends horizontally to the side of the base 1, and its base end 32a is attached to the side wall 1b. Horizontal through hole 3
3 and is inserted into the base 1 through the through hole 3.
It is supported by the hole edge of 3.

The base end 32a of the holder 32 has this base end 32a.
A circular hole-shaped retaining portion 35 is provided through the retaining portion 35 to prevent the rib 1c from coming off, and inside the retaining portion 35 is a rib 1c that is vertically disposed at the upper part of the base 1 and connected to the upper part of the inner wall surface of the side wall 1b. Pin-shaped protrusion 3 protruding from the bottom end
4 is removably fitted and inserted, and the holder 32 has a protrusion 34
It is locked so that it can rotate in the horizontal direction using the protrusion 34 as a fulcrum.

The tip 32b of the holder 32 is bent into a substantially U-shape, and an adjustment screw 36 is threaded onto the tip 32b of the holder 32 to support the tip 32b so that it can be moved up and down while it is in contact with the installation surface. fitted,
A knob 36a for rotation operation that is in contact with the installation surface is formed at the lower end of this adjustment screw 36, and
A lock nut 37 is screwed into the adjustment screw 36 to lock the tip end 32b at the adjustment position.

The holder 32 is connected to the edge of the through hole 33 and the adjusting screw 36.
The holder 32 can be tilted upward using the hole edge of the through hole 33 as a fulcrum, and is supported on both sides, and when the distal end 32b of the holder 32 is supported by the adjustment screw 36, the proximal end 32a is the retaining part 35 and the protrusion 3
4 prevents it from coming off.

When the holder 32 is tilted upward using the edge of the through hole 33 as a fulcrum, the protrusion 3 will come out from inside the retaining part 35.
4 is removed and the base end 32a can be pulled out of the through hole 33. In this state, when the base end 32a is pulled out diagonally upward and out of the through hole 33, the holder 32 is removed from the base 1. Can be removed.

A reference numeral 38 is integrally installed on the upper end of the tip 32b of the holder 32 in order to work with the turntable 2 and the adjuster plate 3 to mount a long workpiece W in a straddling manner. and a support plate arranged at a distance on one side of the turntable 2, the height of the top surface of which matches the height of the top surface of the turntable 2 and the height of the top surface of the adjuster plate 3. The height is adjusted by the adjustment screw 36, and the holder 32 moves in an arc in the horizontal direction by the horizontal rotation of the holder 32, supporting a part of the long workpiece that partially protrudes from above the base 1 to the side. This workpiece can be held horizontally.

Next, the operation and effects of the embodiment having the above configuration will be explained.

In this example, a support plate 38 on which a part of a workpiece is mounted is attached to the base end of an oblong holder 32, which is attached to a through hole 33 penetrated through the side wall 1b of the base 1 of the circular saw M. The proximal end portion 32a is supported by the edge of the through hole 33, and the distal end portion 32b of the holder 32 is configured to move the distal end portion 32b in the vertical direction while in contact with the installation surface. The adjustment screw 36 that supports the adjustment is screwed into the holder 32.
When the distal end portion 32b is supported by the adjustment screw 36, the proximal end portion 32a is prevented from coming off, and when the holder 32 is tilted upward using the edge of the through hole 33 as a fulcrum. A retaining portion 35 is formed at the through hole 33 to allow the proximal end portion 32a to be pulled out.

For this reason, when the workpiece is set on the turntable 2 with the cut point facing the blade 24, a long workpiece with a part of the workpiece protruding laterally from above the base 1 is placed on the turntable 2. The holder 32 can be mounted on the support plate 38 to stably support the workpiece, and the holder 32 can be mounted on the base 1 to accommodate the long and short workpieces to be cut.
The holder 32 can be attached and detached with a single touch, and has the effect of simplifying operations for attaching and detaching the holder 32 to the base 1.

Further, by adjusting the horizontal movement of the support plate 38 so that the workpiece is always supported at the center in the width direction, it is possible to stably support various workpieces having different widths and shapes.

Furthermore, since the support plate 38 can be adjusted vertically, restrictions on the assembly accuracy of the holder 32 of the base 1 and the processing accuracy of the holder 32 can be relaxed, and the adjustment screw 36 for vertically adjusting the support plate 38 can be relaxed. to stably support the support plate 38,
This has the effect of suppressing fluctuations in the supporting height of a long workpiece, regardless of its weight, so that it can be mounted accurately and stably.

Next, a second embodiment of the present invention shown in FIGS. 7 and 8 will be described. In this embodiment, the base 101
The proximal end 13 of the holder 132 is removably and horizontally rotatably locked to the side wall 101b of the holder 132.
2a is bent into a substantially rectangular shape and inserted into an oblong through hole 133 provided through the side wall 101b. This proximal end portion 132a has a retaining portion 13 that is bent diagonally downward and prevents the proximal end portion 132a from coming off.
5 is formed, and a protrusion 140 is formed protruding from the lower surface of the base end portion 132a to abut against the side wall 101b and define the insertion end of the base end portion 132a. The vicinity of the side wall 101b of the base 101 is slightly lifted and the base end 132a of the holder 132 is passed through the hole 13.
In the inserted state, the holder 132 is locked to the side wall 101b of the base 101 so that it can rotate horizontally around the through hole 133 as a fulcrum. Furthermore, an adjustment screw 136 is screwed into the tip end 132b of the holder 132, as in the first embodiment, and a support plate 138 is attached.

In particular, in this example, when the knob 136a of the adjusting screw 136 is in contact with the installation surface 141 on which the base 1 is placed, the base end 132a from inside the through hole 133 is
Since it is impossible to remove the holder 132 from the base 1 during operation, the problem of the holder 132 coming off from the base 1 can be reliably prevented.

Note that the other functions and effects of the second embodiment are substantially the same as those of the first embodiment, so their explanation will be omitted.

(Effects of the invention) Since the present invention is configured as described above, the mechanism that supports the workpiece auxiliary can be made compact, and the holder deforms depending on the weight of the workpiece to support the workpiece. This eliminates the problem of height fluctuations and allows workpieces to be supported stably and appropriately.

In addition, by simply tilting the holder upward or downward, the holder can be attached to the base with one touch without using a screwdriver or the like, and the holder can be removed from the base with one touch, simplifying the operation of attaching and detaching the holder. It can be done quickly.

[Brief explanation of drawings]

Figures 1 to 6 show a first embodiment of the present invention, where Figure 1 is a front view of a circular saw, Figure 2 is a view taken along the line X--X in Figure 1, and Figure 3 is a side view of the circular saw, FIG. 4 is a vertical sectional view mainly showing the turntable 2, FIG. 5 is a sectional view taken along the Y-Y line in FIG. 3, and FIG. FIG. 7 is a plan view of the main parts showing a second embodiment of the present invention, FIG. 8 is a partially cutaway side view, and FIG. 9 is a front view of the main parts showing an example of a conventional support mechanism. 1,101...Base, 32,132...Holder, 38,138...Support plate, M...Circular saw machine.

Claims (1)

[Scope of utility model registration request] The base end of an oblong holder with a support plate on which a part of the workpiece is mounted is inserted into the through hole in the side wall of the base of the circular saw machine. is supported by the edge of the through hole, and an adjustment screw is screwed into the tip of the holder to support the tip so that the tip can be adjusted vertically while in contact with the installation surface. At the base end of the holder, the base end is prevented from coming off when the distal end is supported by the adjustment screw, and when the holder is tilted upward or downward using the edge of the through hole as a fulcrum. A workpiece mounting device for a circular saw machine, characterized in that a retaining portion is formed at the base end portion to enable the base end portion to be pulled out of the through hole.