JP5038221B2 - Jig for tabletop circular saw and tabletop circular saw - Google Patents

Description

  The present invention relates to a tabletop circular sawing jig used when using a tabletop circular sawing machine, and a tabletop circular sawing machine equipped with the jig.

  The tabletop circular saw machine is equipped with a main body with a saw blade that rotates by motor drive above the base so that it can move up and down, and the main body is positioned with the material to be cut pressed against the guide fence laid on the base. By lowering, the material to be cut can be cut with a saw blade. In such a tabletop circular saw, a batten is sometimes used so that even a material to be cut having a large width in the front-rear direction can be cut. For example, like the auxiliary ruler disclosed in Patent Document 1, it is set under the material to be cut on the base, and the material to be cut is supported above the upper surface of the base, so that cutting is performed at a position close to the center of the saw blade. It is possible.

Japanese Utility Model Publication No. 63-53621

  However, since this auxiliary ruler is fixed to the guide fence with screws, it takes time to attach and detach the auxiliary ruler according to the use / non-use of the auxiliary ruler, and the usability becomes worse.

  Accordingly, the object of the present invention is to provide a tabletop circular sawing jig that can be used easily and easily as a batten and is excellent in usability, and a tabletop circular sawing machine using the jig. .

In order to achieve the above object, the invention according to claim 1 is a mounting body mounted on a side surface of a base of a tabletop circular saw machine, and is connected to the mounting body and is mounted on the base of the mounting body. Tabletop circular saw jig comprising a batten position that is placed on the base and whose upper surface is parallel to the upper surface of the base, and a batten plate that can move between a retreat position that retreats to the outside of the base It is what.
In order to maintain high cutting accuracy even when using a batten board in the configuration of claim 1, the invention according to claim 2 is an auxiliary in which the batten board and the upper surface are flush with each other at the batten position. The batten board is movably connected between an adjacent position adjacent to the batten board and a protruding position away from the batten board.
According to a third aspect of the present invention, in the configuration of the second aspect, in order to ensure good cutting accuracy even when angle cutting is performed, the turn placed on the auxiliary batten board so as to be horizontally rotatable on the base. An engaging portion that engages with the upper surface of the table is provided so that the auxiliary batten board can be moved following the rotation of the turntable.
According to a fourth aspect of the present invention, in the configuration of any one of the first to third aspects, the batten board on the outside of the base is used so that the batten board can also be used for supporting the material to be cut on the outside of the base. Is characterized in that the base and the upper surface are at the same height at the retracted position.
According to a fifth aspect of the present invention, in the configuration of the fourth aspect, in order to improve the usability of the batten board, the mounting body is horizontally mounted on the side surface of the base at a position lower than the upper surface of the base by the thickness of the batting board. The batten board is set on the mounting body at the retracted position so that the base and the upper surface have the same height.
According to a sixth aspect of the present invention, in the configuration of the fifth aspect, in order to accurately match the upper surfaces of the batten board and the base at the retracted position, the mounting body is brought into contact with the batten board at the retracted position. The height adjustment screw is screwed together.
In order to achieve the above object, a seventh aspect of the present invention is a tabletop circular saw machine comprising a body having a saw blade that rotates by a motor drive above a base so as to be movable up and down. The jig for tabletop circular saws according to any one of claims 1 to 6 is mounted on at least one of the left and right side surfaces.

According to invention of Claim 1 and 7, the batten board of the jig | tool for tabletop circular saw machines can be easily utilized as a batten without trouble. In addition, since it is possible to select whether or not the batten board is used in a state where it is mounted on the base, there is no risk of losing it and it is easy to use.
According to the second aspect of the invention, in addition to the effect of the first aspect, the material to be cut can be supported at a position closer to the saw blade by using the auxiliary batten board, and high cutting can be achieved even when the batten board is used. Accuracy can be maintained.
According to the third aspect of the present invention, in addition to the effect of the second aspect, it becomes possible to support the material to be cut by the auxiliary batting board without changing the position with respect to the saw blade even when performing the angle cutting. Cutting accuracy can be secured.
According to the invention described in claim 4, in addition to the effect of any one of claims 1 to 3, the batten board can be used for supporting the material to be cut outside the base, and has a long length that protrudes from the base. Even if it is a to-be-cut material, it becomes possible to position reliably using a batten board.
According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect, the batten board moved to the retracted position can be set at the same height as the base to support the material to be cut, thereby improving usability. To do.
According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect, the upper surface of the batten board at the retracted position can be made to coincide with the upper surface of the base with high accuracy.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a tabletop circular saw using the jig for tabletop circular saws of the present invention, and FIG. 2 is a plan view with the main body omitted.
First, the tabletop circular saw machine 1 has a turntable 4 mounted on the center of a base 2 so as to be horizontally rotatable, and an arm 6 (FIG. 4) is connected to a connecting portion 5 provided behind the turntable 4 (upper side in FIG. 2). The main body 7 is pivotally attached to the upper end of the arm 6 so as to be movable up and down. This main body 7 is provided with a disk-shaped saw blade 9 rotated by a motor 8 provided on the right side in the front-rear direction, and is normally biased to an upper limit position by a coil spring (not shown) provided at a connection portion with the arm 6. Has been. Reference numeral 10 denotes a handle for up and down operation.

  11 is a guide fence constructed in the left-right direction on the turntable 4, and left and right fences 12, 13 fixed with bolts to both side parts 3, 3 of the base 2 located on the same plane on the left and right of the turntable 4 The center side ends of the left and right fences 12 and 13 are connected to each other on an arcuate detour portion 14 on the turntable 4. Here, the left and right fences 12 and 13 are respectively provided with guide surfaces 15 perpendicular to the upper surfaces of the turntable 4 and the side part 3 on the front surface, but the right fence 13 avoids interference with the lowered main body 7. While the upper end has a notch shape, the left fence 12 interferes with the main body 7 when the main body 7 is tilted at the maximum angle (45 degrees) (the line L in FIG. 1 is the position of the inclined saw blade 9). The center side is greatly cut away to avoid it.

  Therefore, the base end of the auxiliary fence 16 having the auxiliary guide surface 17 located on the same plane as the guide surface 15 is rotatably connected to the left fence 12 so that the main body 7 is not tilted. When the auxiliary guide surface 17 is positioned toward the center as shown by a solid line and the main body 7 is tilted, the auxiliary guide surface 17 is positioned outside the left fence 12 as shown by a two-dot chain line in FIG. Thus, the guide surface on the left side of the saw blade 9 can be secured.

On the other hand, the turntable 4 has a blade plate 18 in which a slit 19 through which the saw blade 9 passes is formed in the radial direction, and the slit 19 is formed on the guide surface 15 of the guide fence 11 by an operation handle 20 protruding forward. The horizontal rotation operation is possible within a range inclined at 45 degrees to the left and right as shown in FIG.
Therefore, when the operation handle 20 is gripped and the turntable 4 is rotated horizontally, the main body 7 also rotates horizontally following this, the angle of the saw blade 9 is changed, and the guide surface 15 is inclined from a right angle direction. Angle cutting is possible. Further, when the arm 6 is tilted to the left side by operating the lever 21 provided in the connecting portion 5, the main body 7 is also tilted to the left following this, and the angle of the saw blade 9 is tilted from the vertical direction. Therefore, the inclined cutting which inclines from the perpendicular direction with respect to the upper surface of the turntable 4 is possible.

In the base 2, a desk circular saw machine jig (hereinafter simply referred to as “jig”) 30 is provided on each of the left and right side parts 3 and 3. The jig 30 includes a holder 31 as a mounting body to be attached to the side surface of the side portion 3, a work support 32 as a batting board coupled to the holder 31, and an auxiliary batting board coupled to the work support 32. The sub work support 33 is provided. Since both jigs 30 have a symmetrical shape except for the sub work support 33, only the left jig 30 will be described.
First, the holder 31 is formed by bending a metal rod into a U-shape in plan view, and inserting both end portions 34, 34 into mounting holes (not shown) formed on the side surfaces of the side portion 3, whereby the side portion 3. It can be mounted parallel to the upper surface at a position below the upper surface. Further, an adjustment screw 36 is screwed in the center of the base end portion 35 of the holder 31 so as to protrude from the upper surface of the base end portion 35 by screwing the adjustment screw 36.

  Furthermore, a work support 32 is connected to the end portions 34, 34 of the holder 31 via front and rear links 37, 37. This link 37 has a long hole 38 in the center near one end, can be rotated with respect to the end 34 by a screw shaft 39 passing through the long hole 38 and the end 34, and is within the range of the long hole 38. Are connected so as to be movable in the longitudinal direction. Reference numeral 40 denotes a knob screw that is screwed onto the tip of the screw shaft 39 in front of the front link 37. The links 37 and 37 can be fixed to the end portions 34 and 34 by screwing the knob screw 40. The base end of the work support 32 is rotatably connected by a screw 41 to the end of the links 37, 37 opposite to the long hole 38 side.

The work support 32 is a plate that can be placed on the upper surface of the side portion 3 in front of the guide fence 11, and is rotated to the side portion 3 side at the upper limit position of the link 37 where the screw shaft 39 is positioned at the lower end of the long hole 38. As shown in FIGS. 1 and 2, the position of the batten is set on the upper surface of the side portion 3. On the other hand, when it is rotated outward (on the opposite side to the side 3 side) at the lower limit position of the link 37 where the screw shaft 39 is located at the upper end of the long hole 38, it is set on the upper surface of the holder 31 as shown in FIGS. This is the retreat position. Since the thickness of the work support 32 is set equal to the level difference between the upper surface of the side portion 3 and the upper surface of the holder 31, the surface on the work support 32 at the retracted position is the same height as the upper surface of the side portion 3. It becomes.
In addition, the tip of the work support 32 is inclined toward the center gradually toward the rear at the position of the batten according to the maximum angle to the left of the angle cut (position rotated by 45 ° from the position perpendicular to the guide surface 15). It has become a shape.

  The sub-work support 33 is a rod-like body having the same thickness as the work support 32. As shown in FIG. 5, the sub-work support 33 has a vertical pin on a connecting piece 42 protruding from the tip of the inclined end edge of the work support 32. 43 is connected to be horizontally rotatable. As shown in FIG. 6, a protrusion 44 that is continuous with the connecting piece 42 is formed on the inclined end edge of the work support 32, while the sub work support 33 has a protrusion on the side surface on the inclined end edge side of the work support 32. A groove 45 into which the strip 44 is fitted is formed. Therefore, the sub work support 33 is integrated with the work support 32 by fitting the protrusion 44 and the groove 45 at an adjacent position along the inclined end edge of the work support 32.

  A guide hole 46 extending in the longitudinal direction is formed on the free end side of the sub work support 33, and a headed pin 47 serving as an engaging portion can slide along the guide hole 46 in the guide hole 46. Is provided. As shown in FIG. 6, the headed pin 47 can project downward from the lower surface of the sub work support 33 at the batting position by a clip 48 provided at the head and the lower end thereof. By inserting and engaging with a bottomed hole 49 formed near the outer periphery of the blade edge plate 18, the blade edge plate 18 rotates following the rotation of the turntable 4.

  As the headed pin 47 rotates, the sub work support 33 also slides the headed pin 47 in the guide hole 46 as shown by a two-dot chain line in FIG. Therefore, the position along the slit 19 is always maintained. Here, in order to avoid interference at the time of inclined cutting, the left sub-work support 33 has a shape in which the side surface on the saw blade 9 side is cut out obliquely. However, when the main body 7 tilts to the left and right, The right sub-work support 33 also has the same notch shape. On the other hand, in the case of a circular saw that cannot be inclined and cut, the side surface on the saw blade 9 side may be perpendicular to the upper surface of the turntable 4 as in the right subwork support 33.

  In the desk circular saw machine 1 configured as described above, when the jig 30 mounted on the base 2 is used as a batten, the work support 32 is applied to the upper surface side of the side portion 3 as shown in FIGS. After rotating to the wood position, the knob screw 40 is screwed in to fix the links 37, 37 at the upper limit position. Then, the work support 32 is set so as to cover in the left-right direction from the upper surface of the side portion 3 to the upper surface of the turntable 4. At this time, since the sub work support 33 is similarly rotated and set on the upper surface of the turntable 4, if the headed pin 47 is positioned in the bottomed hole 49 by horizontally rotating to the blade plate 18 side as it is, The headed pin 47 is lowered by its own weight and the lower end is inserted into the bottomed hole 49. Therefore, the sub work support 33 is fixed at a position along the slit 19. This is the same for both the left and right jigs 30, but only one of them may be used.

Next, if the workpiece W is set over the left and right work supports 32 and 32 and pressed against the guide surface 15 of the guide fence 11 as it is, the workpiece W is placed on the side portion 3 and the turntable 4. It is supported at a position above the upper surface of the. Therefore, if the main body 7 that holds the handle 10 and rotates the saw blade 9 is lowered, the workpiece W can be cut at right angles to the guide surface 15 between the left and right sub-work supports 33 and 33. .
Further, when performing angle cutting, the sub work support 33 also rotates following the rotation of the turntable 4, and the position close to the slit 19 is maintained. Therefore, the workpiece W can be supported at a position close to the saw blade 9 and stable cutting can be performed. Of course, even if the main body 7 is tilted to the left to perform the inclined cutting, it does not interfere with the sub work support 33.
However, the use of the sub-work support 33 is arbitrary, and the headed pin 47 is not inserted into the bottomed hole 49 depending on the dimension of the material W to be cut, but is set at a position along the inclined edge of the work support 32. Cutting may be performed as it is.

  On the other hand, when cutting a long workpiece W, the work support 32 is rotated to the retracted position outside the side portion 3 as shown in FIGS. At this time, the fixing of the link 37 with the knob screw 40 is arbitrary. In this retracted position, the work support 32 is supported on the upper surface of the holder 31 in a posture parallel to the holder 31, and the upper surface of the work support 32 is flush with the upper surface of the side portion 3. Here, when there is an error between the upper surface of the side portion 3 and the upper surface of the work support 32, the height of the work support 32 may be adjusted by rotating the adjustment screw 36 of the holder 31. Therefore, a long workpiece W can be set using the left and right work supports 32, 32, and stable cutting can be performed.

  At this time, the sub work support 33 is also rotated outward and the upper surface thereof is positioned at the same height as the upper surface of the work support 32, so that the workpiece W is supported together with the upper surface of the sub work support 33. Can do. Here, when the dimension of the workpiece W is long, if the sub work support 33 is rotated outward from a position along the inclined edge of the work support 32 as shown by a two-dot chain line in FIG. Since the upper surface of the support 33 is positioned further outward from the work support 32 and the support surface becomes longer in the left-right direction, even a long workpiece W can be set without any trouble. When the sub work support 33 is rotated outward, the headed pin 47 is lowered by its own weight. Here, a long groove along the guide hole 46 is formed on the surface above the sub work support 33. Since 50 is recessed, the headed pin 47 is lowered until the clip 48 is locked to the bottom surface of the long groove 50 as shown in FIGS. 3 and 4, and does not protrude upward from the upper surface of the sub work support 33.

  Thus, according to the jig 30 and the tabletop circular saw machine 1 of the above-described form, the holder 31 mounted on the side surface of the base 2 of the tabletop circular saw machine 1, and the base 31 of the holder 31 connected to the holder 31. And a work support 32 that can be moved between a batten position that is placed on the base 2 and whose upper surface is parallel to the upper surface of the base 2, and a retreat position that retreats to the outside of the base 2. By using the provided jig 30, the work support 32 can be easily used as a batten without any trouble. In addition, since it is possible to select whether or not the work support 32 is used in a state in which the work support 32 is mounted on the base 2, there is no risk of losing the work support 32.

In particular, here, the work support 32 is provided with a sub work support 33 whose upper surface is flush with the work support 32 at the position of the batten, between an adjacent position adjacent to the work support 32 and a protruding position away from the work support 32. Since the sub-work support 33 is used to support the workpiece W at a position closer to the saw blade 9, high cutting accuracy can be maintained even when the work support 32 is used.
Further, the sub work support 33 is provided with a headed pin 47 which engages with the upper surface of the turntable 4 mounted on the base 2 so as to be horizontally rotatable, and the sub work support 33 follows the rotation of the turn table 4. Therefore, the workpiece W can be supported by the sub-work support 33 without changing the position with respect to the saw blade 9 even when performing angle cutting, and good cutting accuracy can be secured.

Further, since the work support 32 is flush with the side 3 and the upper surface of the base 2 at the retracted position, the work support 32 can be used to support the material W to be cut outside the base 2 and is long enough to protrude from the base 2. Even the workpiece W to be cut can be reliably positioned using the work support 32.
In addition, the holder 31 is mounted horizontally on the side surface of the base 2 at a position lower than the upper surface of the base 2 by the thickness of the work support 32, and the work support 32 is set on the holder 31 in the retracted position. As a result, the work support 32 moved to the retracted position is set at the same height as the base 2 to support the material to be cut W, and the usability is improved.
Then, the holder 31 is screwed with an adjustment screw 36 that comes into contact with the work support 32 in the retracted position and can be adjusted in height, so that the work support 32 in the retracted position matches the upper surface of the base 2 with high accuracy. Can be made.

In the above embodiment, jigs are mounted on the left and right sides of the base, but they may be mounted only on either the left or right side.
Further, the form of the batten board is not limited to the above work support, and it is not necessary to use an inclined edge if it is for a desk circular saw machine that does not perform angle cutting, and the connection to the holder is also performed inside the end part. It is possible to change the design. The auxiliary batten board is the same, and if there is no turntable, it may be slidable in the left-right direction with respect to the batten board. Of course, the auxiliary batten board can be omitted.

On the other hand, in addition to the U-shaped holder, a plate-shaped body can be used as the mounting body. However, a table-top circular saw machine may be fitted with a support holder that is bent upward with its tip aligned with the upper surface of the side. In such cases, existing support holders are installed. There is an advantage that the mounting hole can be used for mounting the U-shaped holder as it is.
In the above embodiment, the workpiece is supported outside the base at the work support retracted position, but this support outside the base is not essential, and simply retracts from the batten position to the outside of the base. Such a jig is also conceivable.
In addition, even if it is in the form of a tabletop circular saw, this type is also applicable to other tabletop circular saws such as the type in which the main body does not tilt, the type in which there is no turntable, and the slide type in which the main body slides back and forth. The jig of the invention can be used.

It is a front view of a tabletop circular saw machine (a jig is a batten position). It is a top view of a tabletop circular saw machine (a jig is a batten position). It is a front view of a tabletop circular saw machine (a jig is in a retracted position). It is a top view of a tabletop circular saw machine (a jig is a retreat position). It is explanatory drawing of the connection part of a sub work support. It is explanatory drawing of the front-end | tip part of a sub work support.

Explanation of symbols

  1 ・ ・ Desktop circular saw machine 2 ・ ・ Base 3 ・ ・ Side part 4 ・ ・ Turntable 7 ・ ・ Main body 9 ・ Saw blade 11 ・ ・ Guide fence 12 ・ ・ Left fence 13 ・・ Right fence, 15 ・ ・ Guide surface, 18 ・ ・ Blade plate, 19 ・ ・ Slit, 30 ・ ・ Jig for desk circular saw machine, 31 ・ ・ Holder, 32 ・ ・ Work support, 33 ・ ・ Sub work support 36. Adjustment screw 37. Link 40. Knob screw 43. Pin 44. Projection 45. Groove 46. Guide hole 47. Headed pin.

Claims (7)

  A mounting body mounted on a side surface of the base of the tabletop circular saw machine, and an upper surface of the mounting body, which is connected to the mounting body and is mounted on the base, is placed on the base and the upper surface of the base A table-top circular sawing jig comprising a parallel batten position and a batten board movable between a retracted position retracted to the outside of the base.   Auxiliary batten boards whose upper surfaces are flush with the batten board at the batten position can be moved between an adjacent position adjacent to the batten board and a projecting position away from the batten board. The jig for tabletop circular saws according to claim 1, wherein the jigs are connected.   The auxiliary batten board is provided with an engaging portion that engages with an upper surface of a turntable mounted on the base so as to be horizontally rotatable, and the auxiliary batten board can be moved following the rotation of the turntable. The jig for tabletop circular saws according to claim 2 characterized by things.   4. The tabletop circular sawing jig according to any one of claims 1 to 3, wherein the base plate and the upper surface have the same height at the retracted position.   The mounting body is mounted horizontally on the side surface of the base at a position lower than the upper surface of the base by the thickness of the caulking board, and the batting board is set on the mounting body in the retracted position. The table-top circular sawing jig according to claim 4, wherein the base and the upper surface have the same height.   6. The jig for tabletop circular sawing machine according to claim 5, wherein an adjustment screw capable of adjusting a height of the mounting body in contact with the batten board at the retracted position is screwed. A tabletop circular saw machine comprising a main body having a saw blade that rotates by a motor drive above a base so as to be movable up and down,
A tabletop circular saw machine comprising the tabletop circular saw machine jig according to any one of claims 1 to 6 attached to at least one of the left and right side surfaces of the base.

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