JP2001096502A - Cutting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a pressing bar released from the state of fixing a cutting object matter is conventionally an obstacle to a setting work and a removing work of the cutting object matter so that workability is not good in a cutting apparatus equipped with a table for setting the cutting object matter, a cutting machine main body capable of being moved along a surface direction of the table, and a cutting object matter-fixing apparatus for fixing the cutting object matter to the table by pressing the pressing bar onto the cutting object matter. SOLUTION: A pressing bar 51 is enabled to be rotated in a direction crossing at right angles a surface direction of a table 2 and in a direction along the surface direction of the table 2. Since the pressing bar 51 can be withdrawn almost from on the surface of the table 2 (a cutting material-set region) thereby, the pressing bar does not get in the way, and a removing or setting work of the cutting object matter W can be easily carried out thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device called, for example, a panel saw, which is suitable for cutting a relatively large plate material (cutting material, for example, plywood having a length of 180 cm and a width of 90 cm). About.

[0002]

2. Description of the Related Art A cutting apparatus of this type is provided with a relatively large table provided in an upright state horizontally or diagonally, and is movable on the table in a cutting direction (along a surface direction of the table). The cutting machine main body includes an electric motor and a circular cutting blade rotated by the electric motor. When the cutting material is set on the table and the cutting machine body is moved along the direction of the table surface while rotating the cutting blade, the cutting material is cut by the cutting blade. In the case of a horizontal cutting device in which a table is installed horizontally, a cutting material is cut vertically by an operator moving the cutting machine body from, for example, a front side to a rear side of the table. On the other hand, in the case of a vertical cutting device in which the table is erected diagonally upward, the cutting material is cut vertically by the operator moving the cutting machine body downward from the table upper side.

[0003] In such a cutting apparatus, in order to ensure the workability of setting a cutting material or the like (to remove an obstacle as much as possible from the table surface side), as disclosed in, for example, US Patent No. 5,842,400. In addition, there is provided a cutting device having a configuration in which a cutting machine main body is arranged on a back surface side, not on a table front side. In this type of cutting device,
The saw blade protrudes from the back side of the table to the front side. According to this configuration, since the cutting machine body does not exist on the table surface side, it is possible to easily set and remove the cutting material.

[0004]

However, since the cutting material fixing device for fixing the cutting material to the table is still provided on the table surface side,
In particular, it hindered the work of setting and removing cutting materials. In other words, the conventional cutting material fixing device is provided with a long auxiliary bar that can be bridged between both ends of the table so as to be able to move in parallel in a direction perpendicular to the table surface, or to be able to rotate, for example, the upper end side. It has a supported configuration,
The auxiliary bar is pressed against the cutting material and fixed so as to sandwich the cutting material between the auxiliary bar and the table. For this reason, when setting or removing the cutting material, the auxiliary bar only floats from the table by a certain dimension, and the auxiliary bar is still present above the table. Was in the way. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a cutting device including a cutting material pressing device that does not hinder the work of setting or removing a cutting material.

[0005]

For this purpose, the present invention provides a cutting device having the structure described in each of the claims. According to the cutting device of the first aspect, the pressing bar for fixing the cutting material is movable in a direction orthogonal to the table surface and movable in a direction along the table surface. When detaching, the holding bar is moved in the direction of rising from the table (the direction perpendicular to the table surface) and then in the lateral direction (the direction along the table surface), so that the holding bar is You can be removed from the surface. Since the press bar can be retreated from the surface of the cut material, the cut material can be removed from the table without the press bar becoming an obstacle. Also, when a cutting material is set on the table, the holding bar can be moved in the direction of lifting from the table and in the direction along the table surface so that it can be almost retreated from the table surface. Can be easily set. The movement of the holding bar can be realized by a configuration of rotating around the support shaft or a configuration of performing parallel movement by a linear slide mechanism.

According to the cutting device of the present invention, the holding bar to which the auxiliary bar is attached is rotatable in a direction orthogonal to the table surface via the first support shaft, and the table is supported via the second support shaft. Since it is rotatable in the direction along the plane, the same operation and effect as described above can be obtained. According to the cutting device of the third aspect, the cutting material fixing device is locked at the cutting material fixing position by the lock lever. When the lock lever is released, the holding bar rotates in the direction of lifting from the table by the bias of the spring, and is held at the raised position, so that the operability in setting and removing the cutting material can be improved. it can. According to the cutting device of the fourth aspect, the rotation of the holding bar in the direction of the table surface is restricted by the position holding member, whereby the holding bar is retreated in the lateral direction from above the table surface and does not become a hindrance. (Retreat position).
Since the holding bar can be held at the position where it has been withdrawn from the table surface, the cutting material can be removed or set more easily.

[0007]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG. In the present embodiment, as an example of a cutting device, a device usually called a panel saw will be exemplified. This panel saw is a cutting device that cuts a relatively large cutting material. The cutting device cuts the cutting material in a state of being leaned upright (vertical cutting device), or is mounted on a horizontal table and cut in a horizontal state. A form (horizontal cutting device) is known. The first embodiment described below exemplifies the former vertical cutting device, and the second embodiment exemplifies the horizontal cutting device. 1 and 2 show the entire cutting apparatus 1 according to the first embodiment.

The cutting apparatus 1 has a table 2 on which a large-sized cutting material W can be leaned and set. The table 2 is fixed in an upright state by the frame 5. Below the surface of the table 2, a lower position regulating bar 2b for regulating the lower position of the set cutting material W is attached along the width direction of the table 2. The cut material W that has been set is placed on the lower position regulating bar 2b, and the lower position is regulated.

On the back side of the table 2, two slide rails 3, 3 are attached in a range parallel to each other and substantially from the upper end to the lower end of the table 2. A slide base 6 is supported on the back side of the table 2 via the slide rails 3 and 3 so as to be movable in a range from substantially the upper end to the lower end of the table 2. That is, as shown in FIG. 4, bearings 7 to 7 mainly composed of rollers are attached to the four corners of the slide base 6.
The slide base 6 is slidably supported on the slide rails 3 and 3 via bearings 7 to 7 at various places.

The cutting machine main body 4 is attached to the lower surface side (the near side in FIG. 4) of the slide base 6 which is slid and supported as described above. As shown in FIG. 3, the cutting machine body 4 has a blade case 11 which is fixed to the slide base 6 by a fixing pin 8 on the lower side and bolted via a bracket not shown on the upper side. An electric motor 12 attached to a side of a case 11 and a circular cutting blade 10 rotated by the electric motor 12 are provided. The tip side of the cutting blade 10 (the left end side in FIG. 3)
Is protruded toward the surface of the table 2 through an elongated groove (a so-called “blade”) extending through the table 2 along the cutting direction. In FIGS. 3 and 4, the cutting edge is denoted by reference numeral 2a. The blade port 2a is orthogonal to the lower position regulating bar 2b.

Next, as shown in FIG. 4, on the side of the electric motor 12, a D-shaped handle 13 is provided. As shown in FIG. 3, a trigger-type main switch 14 is incorporated in the upper portion of the handle portion 13. The main switch 14 includes a trigger 14a rotatably supported via a support shaft 14c, and a switch body 14b which is turned on by pulling operation of the trigger 14a. On the other hand, the power cord 15 is drawn out from the lower part of the handle portion 13. When the trigger 14a is pulled and the switch body 14b is turned on with the power cord 15 connected to a power supply (power outlet) not shown, the cutting blade 10 rotates. With the cutting blade 10 rotating, the cutting machine body 4
Is moved downward, the cut material W set on the table 2 is cut along the cutting edge 2a. In the drawing, reference numeral 16 denotes a dust collecting port for attaching a dust collecting hose or a dust collecting bag (not shown), and swarf generated by the cutting operation is collected through the dust collecting port 16. The portion of the cutting blade 10 protruding to the front side of the table 2 is covered by an openable / closable safety cover 25.

Next, as shown in FIG. 3, a support bracket 17 in the form of a thin plate is attached to the rear of the cutting blade 10 in the cutting direction (upper side in FIG. 3). The support bracket 17 is attached to the surface of the slide base 6 (the left side in FIG. 3), and protrudes toward the surface of the table 2 through the cutting edge 2 a like the cutting blade 10. The support bracket 17 penetrates into the cut portion of the cutting blade 10 to maintain a constant interval between the cut portions, thereby the cutting blade 1
It has a function as a split blade (living knife) for preventing rotation resistance (cutting resistance) from being applied to the zero.

A D-shaped main handle 18 is attached to the protruding end of the support bracket 17. The main handle 18 forms a case body having a split structure, and is attached by sandwiching the upper part of the support bracket 17. The operator can move the cutting machine body 4 up and down on the front side of the table 2 by gripping the main handle 18 and moving it up and down, thereby facilitating the cutting operation. I have. On the other hand, on the back side of the table 2, the cutting machine body 4 can be moved up and down directly by gripping the handle portion 13, thereby facilitating the maintenance and inspection work of the cutting machine body 4 or other parts. Have been.

The main handle 18 has a second support shaft 1
9, an L-shaped handle switch 22 is supported so as to be rotatable up and down. A switch plate 22a for pulling operation is attached to one end of the handle switch 22 so as to cover it. The switch plate 22a projects on the inner peripheral side of the main handle 18. The handle switch 22 is urged in the counterclockwise direction in the figure by a compression spring 24, whereby the switch plate 22a is urged in a direction in which the switch plate 22a projects toward the inner peripheral side of the main handle 18, that is, in the off side. On the other hand, the other end of the handle switch 22 is rotatably connected to one end of the connection plate 21 via the third support shaft 23. In the case of this embodiment, the other end of the handle switch 22 has a long groove-shaped connection hole 22b.
Are formed, and the third support shaft 23 is inserted into the connection hole 22b. The third support shaft 23 is attached to one end of the connection plate 21.

The connecting plate 21 is rotatably supported by a bracket 26 attached to the lower surface of the slide base 6 via a first support shaft 20. The connecting plate 21 connects the insertion groove 6a of the slide base 6 and the cutting edge 2a. And protrudes to the front side of the table 2. The connecting plate 21 is connected to the support bracket 1.
Since the plate thickness is set to be slightly smaller than 7, the contact portion does not come into contact with the cut portion unlike the support bracket 17, whereby a smooth vertical movement can be obtained at the split blade. A U-shaped operating part 2 is provided at the lower end of the connecting plate 21.
1a is formed, and the trigger 14a of the main switch 14 is located inside the operating portion 21a.
At the front of the support bracket 17 in the cutting direction, the above-described safety cover 25 is attached via a support shaft 25a so as to be openable and closable up and down. When the tip of the safety cover 25 comes into contact with the cutting material W in accordance with the downward movement of the cutting machine main body 4, the safety cover 25 is rotated upward about the support shaft 25a and opened, thereby cutting. The blade 10 contacts the cutting material W.

According to the above configuration, when the switch plate 22a of the main handle 18 is pulled toward the ON side against the compression spring 24, the handle switch 22 is turned clockwise around the second support shaft 19 in the drawing. Rotate. Then, the third support shaft 23 is displaced downward in the figure due to the engagement action with the connection hole 22b, whereby the connection plate 21 rotates counterclockwise around the first support shaft 20 in the figure. When the connecting plate 21 rotates in the same direction, the operating portion 21a of the connecting plate 21 is displaced upward in the drawing, so that the trigger 14a is pulled around the support shaft 14c, whereby the switch body 14b is turned on and the electric power is turned on. The motor 12 is started, and the cutting blade 10 is rotated. Thus, the switch plate 22 of the main handle 18 is
By pulling a, the main switch 14 of the cutting machine main body 4 can be remotely controlled from the front side of the table 2, which also facilitates the cutting operation.

Next, a mechanism for more easily moving the cutting machine body 4 will be described. As shown in FIGS. 1 and 2, one slide rail 31 is attached to the right side of the table 2. The auxiliary handle 30 is slidably attached to the slide rail 31. Therefore, the auxiliary handle 30 can be manually moved within a certain range along the right side of the table 2. The moving range of the auxiliary handle 30 is set to a range in which the operator can perform a moving operation in a comfortable posture (a range where the hand can be easily reached).

As shown in FIG. 4, a plate 30a is attached to the back side of the auxiliary handle 30, and a toothed belt 32 (endless belt) is fixed to the plate 30a. The toothed belt 32 includes small pulleys 33, 3 rotatably mounted on the upper and lower portions of the table 2.
It spans between four. Upper and lower small pulleys 33, 34
Are attached to the ends of support shafts 35 and 36 rotatably provided at the upper and lower portions of the table 2. Note that toothed pulleys are used for both small pulleys 33 and 34 in accordance with the toothed belt 32. The support shaft 35 on the upper side of the table 2 is provided with a bearing 35 along the width direction of the table 2.
a, 35a so as to be rotatable. Although not shown, the lower support shaft 36 is also supported rotatably along the width direction of the table 2.

At the center of the upper support shaft 35, one large pulley 37 is fixed. A toothed pulley is also used for the large pulley 37, and the number of teeth is set to twice the number of the small pulleys 33 and 34. A hanging belt 38 is hung on the large pulley 37.
One end of the suspension belt 38 is fixed to the slide base 6 of the cutting machine body 4. On the other hand, as shown in FIG. 1, the other end of the suspension belt 38 extends from the upper part to the lower part of the frame 5 and enters the inside of the protection cylinder 39 attached straight (along the vertical direction). A cylindrical weight 40 is attached to the other end of the suspension belt 38 that has entered the inside of the protective cylinder 39.

According to this configuration, when the auxiliary handle 30 is moved downward, the cutting machine main body 4 moves downward, and when the auxiliary handle 30 is moved upward, the cutting machine main body 4 also moves upward. In this manner, the direction in which the toothed belt 32 extends over the small pulleys 33 and 34 and the direction in which the suspension belt 38 extends over the large pulley 37 are set so that the moving directions of the auxiliary handle 30 and the cutting machine body 4 match. Have been. Further, the cutting machine main body 4 and the auxiliary handle 30 can be stopped at an arbitrary position along the surface direction of the table 2 by balancing the weights 40.

Further, since the small pulley 33 and the large pulley 37 are fixed to the support shaft 35, they rotate in the same direction by the same angle (number of rotations). On the other hand, since the number of teeth of the large pulley 37 is set to twice (the pitch circle diameter is twice) the small pulley 33, the moving amount of the suspension belt 38 is twice the moving amount of the toothed belt 32. (The amplification function of the auxiliary handle 30). Therefore, when the auxiliary handle 30 is pushed downward by the distance L, the cutting machine body 4 moves downward by the distance 2L, whereby the cutting material W is cut by the distance 2L.

Although not shown, the toothed belt 3
Instead of the belt-type transmission mechanism including the second and small pulleys 33 and 34, a chain-type transmission mechanism including a chain and a sprocket can be used. Also, large pulley 37
A sprocket can be used instead of the (toothed pulley), and a chain can be used instead of the suspension belt 38 (toothed belt). In this case, by setting the pitch circle diameter of the sprocket attached to the end of the support shaft 35 to, for example, の of that of the large sprocket attached to the center of the support shaft 35, the amplification function similar to that of the belt type transmission mechanism is achieved. Can be obtained.

The auxiliary handle 30 includes a cutting machine body 4.
Auxiliary switch 4 having the same function as the main switch 14 of FIG.
1 is incorporated. The auxiliary switch 41 is incorporated in the power supply circuit of the cutting machine main body 4 via the electric wiring 42. By operating the auxiliary switch 41, the electric motor 12 is started to rotate the cutting blade 10. Can be. On the other hand, irrespective of the operation of the auxiliary switch 41, the electric motor 12 is also started by pulling the switch plate 22a of the main handle 18 to turn on the main switch 14. That is, in the electric circuit for activating the electric motor 12 of the cutting machine body 4, the main switch 14 of the handle 13 and the auxiliary switch 41 of the auxiliary handle 30 are incorporated in parallel.

Next, as shown in FIGS. 4 and 6, one end of the suspension belt 38 is connected to a fall prevention device 45 provided on the cutting machine main body 4. This fall prevention device 45
When the hanging belt 38 is cut, the end of the lock plate 46 rotatably attached to the back surface of the slide base 6 of the cutting machine main body 4 is pressed against the slide rail 3 on one side, and cut by the resistance. It has a function of preventing the machine body 4 from falling. The lock plate 46 has a U-shape including a pair of left and right side edges 46a, 46a, and a bottom edge 46b extending between the ends of the side edges 46a, 46a.
A support shaft 47 extends between the side edges 46a, 46a, and the lock plate 46 is supported by the support shaft 47 so as to be rotatable in the surface direction of the slide base 6 (vertical direction in FIG. 6). .

When the lock plate 46 is rotated in the counterclockwise direction in the figure, the tip (right end in the figure) of the bottom edge 46b abuts on the slide rail 3 as shown by the two-dot chain line in the figure (lock). position). However, as shown in the figure, the mounting position of the lock plate 46 with respect to the slide rail 3 is set such that the tip of the bottom edge 46b abuts at a downwardly inclined position lower than the horizontal position. Thus, when the distal end portion of the bottom edge 46b comes into contact with the slide rail 3, it acts in the direction of cutting into the slide rail 3 due to its own weight of the cutting machine body 4.

A tension spring 48 is interposed between the rear portion of the lock plate 46 and the slide base 6. Therefore, the lock plate 46 is biased toward the lock position. On the other hand, one end of the suspension belt 38 is fixed to the rear part of one side edge 46 a of the lock plate 46. The hanging belt 38 as described above
A weight 40 is attached to the other end. For this reason, the lock plate 46 is held at a position (unlock position) in which the tip of the bottom edge 46b is separated from the slide rail 3 against the tension spring 48 as shown by a solid line in the drawing.

According to the fall prevention device 45 configured as described above, when the suspension belt 38 is functioning normally,
That is, as long as the lock plate 46 is held in the unlocked position as long as it is held between the cutting machine main body 4 and the weight 40 via the large pulley 37, the vertical movement of the cutting machine main body 4 is smooth. Done. When the suspension belt 38 is cut due to deterioration or the like, the lock plate 46 moves to the lock position by the tension spring 48, and the tip of the bottom edge 46b bites into the slide rail 3, thereby preventing the cutting machine body 4 from dropping. Is done.

Next, the cutting material W
Is provided with a cutting material fixing device 50 for fixing the cutting material. As shown in FIG. 7, the cutting material fixing device 50 has a long holding bar 51 and an auxiliary bar 52 attached to the holding bar 51. The holding bar 51 is attached to the table 2
The table 2 is rotatably supported in a direction approaching or separating from the table 2 (vertical direction) and a surface direction of the table 2 (lateral direction) via a rotation supporting portion 53 provided at an upper end of the table 2. The rotation support portion 53 includes a base 54 mounted on the upper surface side of the table 2 and a U-shaped bracket 56 supported on the base 54 via a second support shaft 55 so as to be rotatable in the table surface direction.
have. The upper end of the holding bar 51 is supported by the bracket 56 via a first support shaft 57 so as to be vertically rotatable. Upper part of holding bar 51 and bracket 56
A compression spring 58 is interposed between the compression spring 58 and the bottom surface. For this reason, the holding bar 51 is urged in a direction of lifting from the table 2.

The auxiliary bar 52 is attached along the lower surface of the holding bar 51 (the surface facing the table 2). The auxiliary bar 52 has two upper and lower link arms 5.
It is attached to the holding bar 51 via 9, 60. One end of each of the link arms 59 and 60 is rotatably connected to a side surface of the holding bar 51, and the other end thereof is an auxiliary bar 52.
Is rotatably connected to the side surface. The holding bar 51, the auxiliary bar 52, and both link arms 59 and 60 constitute a four-bar parallel link mechanism.
2 is attached to the holding bar 51 so as to be able to move up and down in parallel. Also, the holding bar 51 and the auxiliary bar 52
The compression springs 61 and 62 are interposed at two upper and lower locations between them. For this reason, the auxiliary bar 52 is urged in a direction away from the pressing bar 51 (cutting material side).

A grip 64 is attached to the tip of the holding bar 51 so that the operator can grip the cutting material when setting the cutting material. On the lower side of the grip 64 (table 2 side),
A lever 65 for locking the holding bar 51 (cut material fixing device 50) at the cut material fixing position is provided. The lock lever 65 has a substantially L-shape, and is supported so as to be rotatable up and down around a support shaft 66 located substantially at the center thereof. The lock lever 65 is urged in the lock direction by a torsion spring 67 mounted around a support shaft 66. A lock claw 65 is provided at the tip of the lock lever 65.
a is formed. On the other hand, on the upper surface of the table 2, a lock plate 68 with which a lock claw 65a is engaged is attached. The lock plate 68 is attached to the lower surface of the lower position regulating bar 2b attached to the upper surface of the table 2.

When the holding bar 51 is moved closer to the table 2 by a certain distance or more, the lock claw 65a of the lock lever 65 once rotates in the unlocking direction against the torsion spring 67,
Thereafter, the torsion spring 67 returns to the lock direction and engages with the lock plate 68. Therefore, there is no need to operate the lock lever 65 when locking the cutting material fixing device 50. When the lock claw 65 a of the lock lever 65 is engaged with the lock plate 68, the holding bar 51 is locked at a position substantially parallel to the table 2. FIG.
Indicates this locked state.

In this locked state, the holding bar 51
Cannot be pressed directly against the cutting material W. The auxiliary bar 52 is directly pressed against the cut material W. The auxiliary bar 52 can be moved in parallel to approach or be separated from the pressing bar 51, and the cutting material W can be compressed by the compression springs 61 and 62.
Is biased in the direction to approach. For this reason, the auxiliary bar 52 is elastically pressed against the cut material W by the urging force of the compression springs 61 and 62 over its entire length. Therefore,
The cutting material W is compressed by the compression springs 61 and 62 via the auxiliary bar 52.
Fixed by the elastic force of For this reason, even if the thickness of the cut material W to be set has some variation, the cut material W is always pressed against the table 2 with almost the same force. In addition, by appropriately setting the urging force of the compression springs 61 and 62, the cutting material W can be prevented from being damaged.
And it can be fixed with sufficient force.

When removing the cut material W from the table 2, the cut material fixing device 50 may be released. In order to release the cutting material fixing device 50, the lock lever 65 is rotated in the unlocking direction against the torsion spring 67 while the grip 64 is held, whereby the lock claw 65a is removed from the lock plate 68. . This operation can be performed with one hand because the lock lever 65 is disposed immediately below the grip 64. When the lock claw 65a comes off the lock plate 68, the holding bar 51 and the auxiliary bar 52 can be moved.

By rotating the holding bar 51 upward about the first support shaft 57, the holding bar 51 and the auxiliary bar 52 are moved in the direction of lifting from the table 2 (toward the operator). Further, the holding bar 51 can be turned around the second support shaft 55 in the surface direction of the table 2 (in the case of the present embodiment, leftward as viewed from the operator as shown by a two-dot chain line in FIG. 2). By moving, the holding bar 51 and the auxiliary bar 52 can be set to a state where they are almost retreated from the cutting material W and the upper surface of the table 2.
According to this, since the pressing bar 51 and the auxiliary bar 52 do not get in the way, the work of removing and setting the cut material W can be performed easily.

A pressing bar 5 is provided on the upper surface of the table 2.
A position holding member 69 for holding 1 in the retreat position is attached. In the center of the upper part of the position holding member 69, a one step higher regulating convex part 69a is provided. As shown by the two-dot chain line in FIG. 2, in a state where the holding bar 51 is rotated to the left around the second support shaft 55 and retreated from the upper surface of the table 2, the holding bar 51 is When it is located on the left side, the rightward rotation of the holding bar 51 is restricted. In this state, the holding bar 51 is moved to the regulating projection 69.
a, and the holding bar 51 is held at the retreat position. Therefore, the worker can release his / her hand from the grip 64 of the holding bar 51 and concentrate on the work of removing or setting the cut material W.

Next, the position of the cutting material W in the width direction (the blade opening 2a)
The positioning device 70 for regulating the position in the direction perpendicular to the position will be described. As shown in FIG. 2, the positioning device 70 is attached to the frame 5 on the left side of the table 2. The positioning device 70 is attached to the frame 5 as shown in FIGS. 2, 8 and 9, and has a prism-shaped slide bar 71, 71 which is parallel to each other at a certain interval up and down, and both slides. A pair of upper and lower sliders 72, 7 slidably attached to the bars 71, 71, respectively.
2 is provided. The upper and lower sliders 72 have the same configuration. This slider 72 is shown in FIGS.
The positioning stopper 74 is provided as shown in FIG. The positioning stopper 74 is provided in the support hole 7 provided in the slider 72.
A shaft 74a is inserted into the shaft 2a so as to be movable in the axial direction, and a stopper 74b attached to the tip of the shaft 74a. The left end of the cut material W is brought into contact with the pair of upper and lower positioning stoppers 74, 74 to regulate the position of the cut material W in the width direction.

The position of the slider 72 can be adjusted. A screw shaft 73 for position adjustment is rotatably attached to the frame 5 along a slide bar 71. A knob 73a for rotating operation is attached to the end of the screw shaft 73. The screw shaft 73 is inserted into an escape hole 72c of the slider 72. This escape hole 72c
A nut 76 is interposed at an intermediate position. The nut 76 can be rotated by a predetermined angle via a lever portion 76a provided to protrude sideways. This nut 7
The rotation center of No. 6 is eccentric by a certain dimension with respect to the center of the escape hole 72c. Therefore, when the nut 76 is rotated, a part of the screw hole 76b projects inward from the escape hole 72c (fine adjustment position), and
State where b is almost aligned with escape hole 72c (coarse adjustment position)
Can be switched to

When the nut 76 is located at the fine adjustment position, a part of the screw hole 76b is engaged with the screw shaft 73. Therefore, by gripping the knob 73a and rotating the screw shaft 73, the slider 76 is rotated. 72 to slide bar 7
1, whereby the position of the positioning stopper 74 (stopper portion 74b) can be finely adjusted. On the other hand, when the nut 76 is rotated by approximately 90 ° to switch to the coarse adjustment position, the screw hole 76b is substantially aligned with the escape hole 72c, and the screw hole 76b does not mesh with the screw shaft 73. Therefore, the slider 72 can be largely moved to an arbitrary position irrespective of the screw shaft 73, whereby the positioning stopper 74 can be quickly and largely moved. For this reason, the screw shaft 73 and the nut 76 have a so-called quick vise function.

Further, both positioning stoppers 74, 74
The position of each of the sliders 72 can be changed at two positions in the axial direction (the horizontal direction in FIG. 8). That is, the positioning holes 74c, 74c are formed at regular intervals in the shaft portion 74a of the positioning stopper 74. On the other hand, an insertion hole 72b is formed in an upper portion (right side in FIG. 9) of the slider 72 so as to penetrate the support hole 72a.
5 is supported movably in the axial direction. The positioning pin 75 is urged by a compression spring 77 in a direction to protrude into the support hole 72a. The tip of the positioning pin 75 protruding into the support hole 72a by the urging force of the compression spring 77 is inserted into one of the positioning holes 74c to fix the axial position of the shaft 74a. The position of 74b in the table width direction is fixed.

FIG. 8 shows a state in which the positioning stopper 74 is locked on the retracted side. To change the positioning stopper 74 from the retracted position to the extended position,
The positioning pin 75 is inserted into the insertion hole 72b against the compression spring 77.
And the tip is pulled out from the positioning hole 74c. This allows the shaft portion 74a to move in the axial direction, so that the position of the stopper portion 74b can be changed to the protruding side. When the shaft portion 74a is moved to the protruding side by a predetermined distance, the positioning pin 75
Is fitted into the positioning hole 74c on the rear end side (left side in the figure) by the compression spring 77, whereby the positioning stopper 74
Is locked in the extended position.

In FIG. 2, the upper slider 7 is shown.
2 is located at the right end of the slide bar 71, and the positioning stopper 74 attached to this slider 72 is in a state of being located on the protruding side, while the lower slider 72 in the figure is located at the left end of the slide bar 71. And the positioning stopper 74 is positioned on the retraction side. The positioning stopper 74 can be moved between a position shown on the upper side in the figure and a position shown on the lower side in the figure. In an actual positioning operation, both positioning stoppers 74 are used in a state where they are located at the same position.

According to the cutting apparatus 1 of the present embodiment configured as described above, the cutting machine main body 4 and the slide guides (slide bars 3, 3 and the like) for supporting the cutting machine are arranged on the back side of the table 2. Therefore, the operator can efficiently perform the accurate cutting operation while visually observing the cutting portion in a comfortable posture, and the workability at the time of setting or removing the cutting material W is improved. The vertical movement of the cutting machine body 4 can be easily performed from the front side of the table 2 by using the main handle 18 disposed on the front side of the table 2.

Further, according to the present embodiment, the main switch 14 of the cutting machine body 4 can be turned on by pulling the handle switch 22 through the switch plate 22a provided on the main handle 18, and Thus, starting and stopping of the cutting machine main body 4 can be remotely controlled from the table surface side, so that the usability of the cutting device 1 can be improved in this respect as well.

Moreover, the operation of the handle switch 22 of the main handle 18 is transmitted to the main switch 14 of the cutting machine main body 4 via a mechanical structure (the rotatably supported connecting plate 21), so that it is the same as the conventional one. In the case where there is an electric wiring between them, there is no need for troublesome handling and handling of the electric wiring, and it is possible to improve durability and maintainability.

The illustrated cutting device 1 can also be operated by sliding up and down an auxiliary handle 30 provided on the side of the table 2 and provided in a range where the operator can move and operate in a comfortable posture. The main body 4 can be moved up and down. For this reason, in the actual cutting operation, the operator can cut the cut material W by gripping the auxiliary handle 30 and sliding it downward. According to this, it is possible to easily perform a cutting operation at a high position that is inaccessible from the front position of the table 2, and in this respect, the usability of the cutting device 1 can be improved.

Moreover, in the case of the illustrated embodiment, the sliding amount of the auxiliary handle 30 is amplified twice and transmitted to the cutting machine main body 4, so that the cutting machine main body 4 is largely moved by a small operation of the auxiliary handle 30. be able to. When the cutting material W is tall, the moving distance of the cutting machine main body 4 increases. However, the moving distance of the auxiliary handle 30 is only half, and the cutting machine main body 4 can be quickly moved. it can. The auxiliary handle 41 is also provided with an auxiliary switch 41. By operating the auxiliary switch 41, the electric motor 12 of the cutting machine body 4 can be started. As described above, since the handle switch 22 of the main handle 18 and the auxiliary switch 41 of the auxiliary handle 30 are provided as switches for activating the cutting machine body 4, the operator can easily operate any one of the switches. Can be selected and used.

That is, when cutting a tall cut material W, the cutting machine main body 4 is located at a high position at the start of cutting, and thus the operator's hand does not reach the main handle 18 and the handle switch 22. However, in this case, the cutting machine main body 4 can be easily activated and moved by using the auxiliary handle 30 and the auxiliary switch 41. On the other hand, when the cutting material W is relatively low, the cutting machine body 4 is located at a position where the operator can easily reach at the time of starting the cutting, so that the operator directly grips the main handle 18 and operates the handle switch 22. Can be pulled.

Next, according to the cutting apparatus 1 of the present embodiment,
Since the fall prevention device 45 is interposed between the cutting machine body 4 and the hanging belt 38, even if the hanging belt 38 is cut due to deterioration due to long-term use, the cutting machine body 4 Will not accidentally fall.

Further, according to the cutting apparatus 1 of the present embodiment, there is provided a cutting material fixing device 50 for fixing the cutting material W set on the front side of the table 2. The cutting material fixing device 50 can be turned in the vertical and horizontal directions via the turning support 53. Cutting material fixing device 50,
By turning to the left as shown by the two-dot chain line in FIG. 2, the table 2 can be retreated from the table 2, whereby the work of removing and setting the cut material W can be performed quickly and easily.

Further, the cutting apparatus 1 of the present embodiment is provided with a positioning device 70 for regulating the position of the cutting material W set on the table 2 in the left-right direction (the width direction of the table 2). Both sliders 72 of this positioning device 70,
72 has a so-called quick vise function including a nut 76 and a screw shaft 73. Therefore, the nut 76
Is switched to the fine adjustment position and the screw shaft 73 is rotated.
The position of the slider 72 and thus the position of the positioning stopper 74 can be finely adjusted. On the other hand, if the nut 76 is switched to the coarse adjustment position, the slider 72 and thus the positioning stopper 74 can be quickly moved without rotating the screw shaft 73.

Various modifications can be made to the embodiment described above. For example, a belt-type transmission mechanism (chain-type transmission mechanism) is illustrated as a power transmission mechanism interposed between the cutting machine main body 4 and the auxiliary handle 30, but a moving-pulley-type transmission mechanism is used instead of the belt-type transmission mechanism. The same function can be obtained by mounting. FIG. 5 shows an example of the moving pulley type transmission mechanism. The same points as those of the belt-type transmission mechanism are denoted by the same reference numerals, and description thereof is omitted.

As shown in the figure, fixed pulleys 81 and 82 are rotatably mounted on the upper back surface of the table 2 at positions not interfering with the slide base 6. or,
A moving pulley 83 is attached below the fixed pulleys 81 and 82 via a bracket (not shown) so as to be vertically movable. One end 8 of the first belt 84 is attached to the moving pulley 83.
4a is fixed. The other end 84 of the first belt 84
b is fixed to the plate 30a of the auxiliary handle 30 via a fixed pulley 81 on the left side in the figure, as in the case of the belt type.

A weight 86 is suspended from the moving pulley 83. The weight W3 of the weight 86 is set to W3 = 2W1 + W2, where W1 is the weight of the cutting machine body 4 and W2 is the weight of the auxiliary handle 30. A second belt 85 is stretched between the moving pulley 83 and the fixed pulley 82 on the right side in the figure. One end 85 a of the second belt 85 is pulled upward from the moving pulley 83 and is fixed to the upper end of the table 2. On the other hand, the second belt 85
Is fixed to the rear end of the lock plate 46 of the fall prevention device 45 described above.

The moving amount of the auxiliary handle 30 is also amplified by a factor of two and transmitted to the cutting machine body 4 also by the moving pulley type transmission mechanism configured as described above. That is, when the auxiliary handle 30 is moved downward by the distance L, the cutting machine body 4 moves downward by the distance 2L, and when the auxiliary handle 30 is moved upward by the distance L, the cutting machine body 4 moves upward by the distance 2L. I do. Further, since the cutting machine body 4 and the auxiliary handle 30 are balanced with the weight 86, the operating force required for the operation of moving the auxiliary handle 30 is very small, and the cutting machine body 4 can be moved up and down with an extremely small operating force. it can.
These points are the same as in the case of the belt-type transmission mechanism.
Further, the end 85b of the second belt 85 is
Since it is connected to the cutting machine main body 4 through 6, the cutting machine main body 4 does not drop accidentally even if the first or second belt 84, 85 is cut. In addition to the vertical cutting device 1, an auxiliary handle is provided in a horizontal cutting device in which the workpiece W is fixed horizontally and cut, and the cutting device body is remotely operated (moving operation) by a sliding device of the auxiliary handle. , Start / stop operation).
In this case, the fall prevention device 45, the suspension belt 38
Alternatively, the weight 40 and the like become unnecessary.

Next, the slide type auxiliary handle 30 has been exemplified, but this can be changed to a rotary type. The structure of the rotary auxiliary handle 90 is shown in FIGS. A base 91 is attached to the side of the table 2 so as to protrude downward. This base 91
In addition, an auxiliary handle 90 is rotatably supported via a support shaft 90a. On the rear side of the auxiliary handle 90, an auxiliary disk 92 is rotatably supported by a base 91 via a support shaft 92a. A connecting rod 93 is mounted between the auxiliary handle 90 and the auxiliary disk 92. One end of the connecting rod 93 is rotatably supported by the auxiliary handle 90 via a support shaft 93a. The other end of the connecting rod 93 is rotatably supported by the auxiliary disk 92 via a support shaft 93b. Support shaft 90a and support shaft 9
The distance between the shafts 3a and 3a is the same as the distance between the shafts 92a and 93b.

A substantially cylindrical grip 94 is attached to one end of the connecting rod 93. The grip 94 has an auxiliary switch 94a. The auxiliary switch 94a is turned on by a pushing operation. The auxiliary switch 94a is incorporated in the power supply circuit of the cutting machine main body 4 via the electric wiring 95. Therefore, the auxiliary switch 94a
When the pulling operation is performed, the electric motor 12 is started and the cutting blade 1 is operated.
0 rotates.

A driving sprocket 96 is rotatably supported on the support shaft 90a. This drive sprocket 96
Rotates integrally with the auxiliary handle 90. A chain 97 is suspended around the drive sprocket 96. On the other hand, a driven sprocket (not shown) is rotatably supported on the upper part of the table 2 instead of the small pulley 33, and the driven sprocket and the driving sprocket 96 are supported.
And a chain 97 is hung. The driven sprocket is fixed to the end of a rotatably supported spindle 35, as in the case of the belt-type transmission mechanism. Therefore, when the driving sprocket 96 is rotated by rotating the auxiliary handle 90, the driven sprocket is rotated via the chain 97, and thus the support shaft 35 is rotated. When the support shaft 35 rotates, the large pulley 37 fixed at the center thereof rotates, whereby the suspension belt 38 moves and the cutting machine body 4 moves up and down.

Further, according to the rotary auxiliary handle 90, the connecting rod 93 is stretched between the auxiliary disk 92 and the supporting rod 93, and the connecting rod 93 is provided between the supporting shaft 93a and the supporting shaft 90a of the connecting rod 93. The inter-axis distance matches the inter-axis distance between the support shaft 93b and the support shaft 92a. For this reason, when the grip 94 is gripped and the auxiliary handle 90 is rotated, the connecting rod 9 is rotated.
3 moves in parallel. Since the connecting rod 93 moves in parallel, the grip 94 attached to the upper surface also moves in parallel. As described above, since the grip 94 moves in parallel with the rotation of the auxiliary handle 90, the grip 94 is always held in a fixed direction when viewed from the operator. Therefore, the worker can use the auxiliary handle 9.
The grip 94 can be always held in the same hand direction regardless of the position of 0 (position in the rotation direction), and the finger can be quickly put on the auxiliary switch 94a. In this respect, the usability of the auxiliary handle 90 is improved. I do.

Since the orientation of the grip 94 is always constant, the electric wiring 9 is
5 does not get twisted.
Can be improved in durability.

Next, the positioning device 70 for the cut material W can be modified. Positioning device 7 exemplified above
0 has a configuration in which the sliders 72, 72 are directly gripped and moved manually, so that the operator needs to move to the front of the positioning device 70. As illustrated, in the case of the vertical cutting device 1 that sets the cutting material W in a state of being leaned obliquely, the setting and removing operation of the cutting material W, or the moving operation of the cutting machine body 4 during the cutting operation is usually performed. Since the operation is performed while standing in front of the table 2, the sliders 72, 72 of the positioning device 70 can be relatively easily reached. Therefore, the work of adjusting the positions of the sliders 72, 72 can be performed relatively efficiently.

However, a horizontal cutting apparatus 100 in which a cutting material W is set on a horizontally arranged table and cut is set.
In the case of (1), the positioning device is arranged on the side opposite to the side of the table (cutting position) where the worker is normally located during the cutting operation. For this reason, when changing the setting of the positioning device, it is necessary for the operator to move to the side opposite to the cutting operation position, and there is a problem that workability is not good. The horizontal cutting device 100 according to the second embodiment described below includes a positioning device 101 that can be remotely operated from the cutting operation position side.

Details of the horizontal cutting device 100 and the positioning device 101 of the second embodiment are shown in FIGS. The horizontal cutting device 100 includes a table 111 horizontally supported by a frame 110. In FIG. 12, the right side of the table 111 is a place (cutting work position) where the worker is normally located at the time of cutting work and setting and removing work of the cutting material W, and the positioning device 101 is at the opposite side (table 111). To the left).

On the back side (lower side) of the table 111, a cutting machine main body 112 is provided. This cutting machine body 11
2 is configured in the same manner as the cutting machine body 4 of the first embodiment, and is movable in the longitudinal direction of the table 111 (vertical direction in FIG. 13) via slide rails 113 attached to the lower surface of the table 111. Supported.
In the center of the table 111, a blade port 2a for protruding the cutting blade is formed along the longitudinal direction.

In FIG. 12, the cutting machine main body 112 is not shown, but bearings 114 to 114 indicated by reference numeral 114 in the drawing (corresponding to the bearings 7 to 7 in the first embodiment).
Slide base 115 slide rail 11
The slide base 115 is mounted on the lower surface of the slide base 115. The cutting machine main body 112 and its mounting structure are the same as in the first embodiment. Although not shown, the table 111
A cutting material fixing device having the same configuration as that of the cutting material fixing device 50 of the first embodiment is attached to the front surface side (upper surface side).

On the other hand, in the case of the horizontal cutting device 100,
Since the table 111 is arranged horizontally at a height substantially equal to the waist of the operator, the main handle 18 can be relatively easily irrespective of the position of the cutting machine body 112 in any direction in the cutting direction.
The cutting operation can be performed by directly grasping (see the first embodiment). For this reason, the auxiliary handle 30 in the first embodiment is not particularly required.
0 is not provided with an auxiliary handle having an equivalent function. Furthermore, as a result of not requiring an auxiliary handle, the horizontal cutting device 100 includes the toothed belt 32, the amplification mechanism including the large and small pulleys 33 and 37, the fall prevention device 45, the suspension belt 38, and the weight 40 in the first embodiment.
No suspension mechanism is provided.

Now, the positioning device 101 of the second embodiment
Has a handle 120 for remote operation on the cutting operation position side of the table 111. The handle 120 is attached to the support shaft 1 rotatably mounted along the width direction of the frame 110.
21 is attached to one end. This support shaft 121 is
It is rotatably supported by bearings 122, 122 attached to the frame 110. A driving sprocket 123 is attached to the other end of the support shaft 121.

On the other hand, an auxiliary frame 125 is attached to the left side of the frame 110 in FIG. This auxiliary frame 1
25, two screw shafts 126, 126 are attached in parallel with each other. The two screw shafts 126 are supported rotatably along the width direction of the table 111. The front ends (the right ends in FIG. 12) of the two screw shafts 126 are rotatably supported by bearings 127, respectively. On the other hand, the rear ends of the two screw shafts 126, 126
b, 125b so as to be rotatable.

[0068] Driven sprockets 128, 128 are attached to the front ends of the two screw shafts 126, 126, respectively. An endless chain 129 extends between the driven sprockets 128 and 128 and the driving sprocket 123. Therefore, when the handle 120 is rotated to rotate the support shaft 121, the two screw shafts 126 and 1 are rotated.
26 rotate in the same direction. In the case of the present embodiment, the pitch circle diameter of both driven sprockets 128, 128 is set to の of the pitch circle diameter of the drive sprocket 123. Therefore, when the handle 120 is rotated once, the screw shaft 126 is rotated twice. The driving sprocket 123 and the driven sprocket 1
The pitch circle diameters of 28 and 128 can be changed.

Each of the two screw shafts 126 has one
Each block body 130 is mounted. A screw hole 130a is formed in a lower portion of both block bodies 130, 130, and a screw shaft 126 is screwed into the screw hole 130a. Support holes 130b are provided in the upper portions of both block bodies 130.
Are formed, and the shaft portions 131a of the positioning stoppers 131 are inserted through the support holes 130b so as to be movable in the axial direction. Positioning holes 131b and 131b are formed in the shaft portion 131a at two positions in the front and rear directions in the axial direction.
On the other hand, lock holes 130c are formed on the upper surfaces of both block bodies 130, respectively. Both lock holes 130
c penetrates through the support hole 130b. A lock pin 132 is removably inserted into the lock hole 130c. When the lock pin 132 is inserted into the lock hole 130c, its tip is inserted into the positioning hole 131b, and the shaft 131a is fixed so as not to move in the axial direction, and the positioning stopper 131 is locked.

A stopper plate 133 is attached to the front ends of both shaft portions 131a, 131a in a bridging manner. The position of the cut material W in the width direction of the table 111 is regulated by bringing the stopper plate 133 into contact with the left side surface of the set cut material W. FIG. 12 shows a lock pin 1 in each of the positioning holes 131b on the front side (right side in the figure).
This shows a state in which the distal end of the stopper 32 is inserted, and at this time, the stopper plate 133 is locked at the retracted position with respect to the block bodies 130, 130. Both lock pins 132,
132 is once pulled out, the shaft portions 131a, 131a are moved forward, and then the lock pins 132, 132
Is inserted into the lock holes 130c, 130c, and the leading ends are inserted into the rear positioning holes 131b, 131b, so that the stopper plate 133 is locked at the protruding position (a position closer to the blade port 2a).

Positioning device 101 configured as above
According to the above, the operator rotates the handle 120 while being at the cutting operation position, so that the stopper plate 133 is
Can be changed. When the handle 120 is rotated, the support shaft 121 rotates. When the support shaft 121 rotates, the two screw shafts 126, 126 rotate in the same direction and at the same speed through meshing of the sprockets 123, 128, 128 and the chain 129, so that the two block bodies 130, 130 are positioned relative to each other. Without changing
It moves along the screw axis 126. Both block bodies 130,
Since 130 moves without changing the relative position, the stopper plate 133 moves in parallel in the front and rear direction (the width direction of the table 111). The position of the stopper plate 133 is
Can be arbitrarily changed according to the rotation position (the number of rotations and the rotation direction).

As described above, the worker can remotely control the positioning device 101 to adjust the position of the stopper plate 133 while staying at the front side of the table 111, so that the positioning and setting work of the cut material W can be performed. It can be performed efficiently. The position of the shaft portion 131a with respect to the block body 130 can be changed by temporarily extracting the lock pins 132 and 132 and changing the positioning holes 131b into which the distal ends of the lock pins 132 are inserted. The plate 133 can be largely changed to the retracted position or the extended position. This operation is performed by the operator using the positioning device 1 on the opposite side of the table 111.
Move to 01.

The remote control type positioning device 10 described above
Needless to say, 1 can be applied to the vertical cutting device 1. In the positioning device 101, the quick vise function (a mechanism in which the nut 76 is eccentrically engaged with the screw shaft 126) in the positioning device 70 of the first embodiment is added to both the block bodies 130, 130. Can also.

Further, in the cutting apparatus 1 or 100 according to the first or second embodiment, the cutting machine bodies 4 and 112 are configured not to move in the direction orthogonal to the table surface direction. By doing so, it is possible to change the protrusion dimension of the cutting blade 10 from the table upper surface,
Thus, the cutting depth of the saw blade 10 with respect to the cutting material W can be adjusted. Even when the cut depth adjusting function is added, the operating portion 21a of the connecting plate 21 is always operated by the main switch 1 in the entire adjustable range.
The length of the operating portion 21a may be set so as to engage with the trigger 14a of No. 4.

Further, a circular cutting blade 10 is used as a cutting machine body.
Although the circular saw in which the cutting is performed by rotating is exemplified, the above-described various configurations are also applicable to a cutting device in which a reciprocating saw in which the blade having a saw blade on one side is reciprocated and cut is used as a cutting machine main body. can do.

[Brief description of the drawings]

FIG. 1 is an overall side view of a vertical cutting device according to a first embodiment.

FIG. 2 is an overall front view of the vertical cutting device.

FIG. 3 is a side view of a cutting machine main body.

FIG. 4 is a view of the cutting machine main body as viewed from the back side of the table. This figure shows a configuration in which a cutting machine main body and an auxiliary handle are connected via a belt-type transmission mechanism.

FIG. 5 is a view of the cutting machine body viewed from the back side of the table. This figure shows a configuration in which the cutting machine main body and the auxiliary handle are connected via a moving pulley type transmission mechanism.

FIG. 6 is a view of the fall prevention device of the cutting machine main body as viewed from the back side of the table.

FIG. 7 is an overall side view of the cutting material fixing device.

FIG. 8 is a detailed view of a portion (8) in FIG. 2 and is a plan view of a slider of the positioning device.

9 is a sectional view taken along line (9)-(9) of FIG.

FIG. 10 is a view showing another form of the auxiliary handle, and is a side view of the rotary auxiliary handle.

FIG. 11 is a plan view of the rotary auxiliary handle.

FIG. 12 is a side view of a horizontal cutting device. In the figure, the cutting machine body is not shown.

FIG. 13 is a view of a horizontal cutting device and its positioning device as viewed from the lower surface side of the table.

14 is a sectional view taken along line (14)-(14) of FIG.

[Explanation of symbols]

W: Cutting material 1: Cutting device (vertical type) 2: Table, 2a: Blade opening 3: Slide rail, 4: Cutting machine body, 6: Slide base 10: Cutting blade, 12: Electric motor 14: Main switch, 14a Trigger, 14b Switch body, 14c Support shaft 17 Support bracket (split blade) 18 Main handle 19 Second support shaft 20, First support shaft 21, Connection plate 22 Handle switch 23 3 support shafts, 30 ... auxiliary handle 38 ... hanging belt, 40 ... weight, 41 ... auxiliary switch 45 ... fall prevention device 50 ... cutting material fixing device, 51 ... holding bar, 52 ... auxiliary bar, 53 ... rotation support part 69 position holding member 70 positioning device 72 slider 73 screw shaft 76 nut 83 pulley 90 auxiliary handle 93 connecting rod 94 grip 94 ... auxiliary switch 100 ... horizontal cutting device (second embodiment) 120: handle for remote control, 133 ... stopper plate

 ──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Koji Tanaka 3-11-8 Sumiyoshicho, Anjo-shi, Aichi F-term (reference) in Makita Co., Ltd. 3C027 RR03 RR04 RR09

Claims (4)

[Claims] 1. A table for setting a cutting material, a cutting machine main body movable along a surface direction of the table, and a cutting material fixing device for fixing the cutting material to the table, wherein the cutting material fixing is performed. The cutting device has a pressing bar that presses and fixes the cutting material to the table, and the pressing bar is configured to be movable in a direction perpendicular to the table surface and in a direction along the table surface. 2. The cutting device according to claim 1, wherein one end of the holding bar is rotatable in a direction orthogonal to the table surface via a first support shaft and is connected to the table surface via a second support shaft. The support bar is rotatably supported in the direction along which the auxiliary bar is supported by the holding bar so as to be able to approach and separate from each other, and is biased by a spring in a direction in which the auxiliary bar is separated from the holding bar. Cutting device configured. 3. The cutting device according to claim 2, further comprising a spring biasing the presser bar in a direction in which the presser bar rises from the table, and further including a lock lever for holding the presser bar at a cutting material fixing position. . 4. The cutting apparatus according to claim 2, wherein the table is provided with a position holding member for holding the holding bar at a retreat position where the press bar is retreated from the table surface.