Table-top cutter

Abstract

To enhance a stabilization function of a material to be cut in a table-top cutter, while reducing weight of an extension table for stabilizing a placement posture of the material to be cut, that is placed on a turntable.SOLUTION: A movable placement part 50 is provided on a pedestal part 3 of a base 2. The movable placement part 50 is movable between a rear posture extending backward from a rotation base end part 50a and a lateral posture extending laterally. The rotation base end part 50a is located in an area E on a nearer side of the pedestal part 3 than a half of distance L from a positioning fence 6 to a front end part 3f on a near side in a surface direction of a blade tool 11. Weight is reduced in comparison to a conventional slide type extension table by the rotation type movable placement part 50. Since storing is carried out in a rear posture, a placement posture of a material to be cut is stabilized through enlargement of a size of the movable placement part 50.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a bench cutter used for cutting a material to be cut, such as wood. [Background technology]

[0002] A bench cutter has a base that is placed on a table or floor, a turntable on which the workpiece is placed, and a cutting machine body equipped with a cutting tool that is provided above the turntable. The cutting tool, which is rotated by an electric motor as a drive source, cuts into the workpiece placed on the turntable to perform cutting processing. Conventionally, there have been efforts to stabilize the placement position of large workpieces that protrude from the turntable.

[0003] Patent Document 1 describes providing an extension table at the front of the base so that it can rotate horizontally. The extension table extends forward to receive the workpiece at a position that protrudes from the turntable, stabilizing the placement position. Patent Document 2 describes providing an extension table so that it can rotate horizontally via a rotation shaft provided near the positioning surface of a fence that positions the workpiece in the planar direction. Patent Document 2 also describes providing an extension table that protrudes significantly laterally from the side of the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 7-241803 [Patent Document 2] U.S. Pat. No. 10,702,933 Summary of the Invention [Problem to be solved by the invention]

[0005] According to the extension table described in Patent Document 1, the range of movement in the left-right direction is small, so when placing a workpiece that is long in the left-right direction, a separate holder metal fitting or the like must be prepared, and there are limitations to the workpieces that can be cut. According to the former extension table in Patent Document 2, there is a problem that it is difficult to receive the workpiece in the front area when rotated to the side. According to the latter extension table in Patent Document 2, there is a problem that it is heavy because there are many steel parts. This disclosure provides an extension table that is lightweight and can be used for a wider range of workpiece sizes. [Means for solving the problem]

[0006] According to one aspect of the present disclosure, a bench cutter includes, for example, a base, a turntable rotatably supported on the base and on which a workpiece is placed, and a cutting machine body supported on the turntable so as to be swingable up and down and equipped with a disk-shaped cutting tool. The bench cutter includes, for example, a pedestal portion protruding upward from the base on the side of the turntable, and a movable placement portion including a rotating base end rotatably supported on the pedestal portion and supporting the workpiece in cooperation with the turntable. The movable placement portion is movable, for example, between a rear position extending from the rotating base end in the direction of the surface of the cutting tool and a lateral position extending from the rotating base end in a direction intersecting the direction of the surface of the cutting tool.

[0007] Therefore, the movable placement part as an extension table is rotatable, so that its weight can be reduced, and the movable placement part can move to the rear position and the side position, so that a wider range of sizes of workpieces can be supported. In this disclosure, the rear position and the side position are defined based on the face direction of the cutting tool in the case of so-called right-angle cutting. Therefore, the face direction of the cutting tool in the case of right-angle cutting corresponds to, for example, the direction perpendicular to the positioning face of the positioning fence. [Brief description of the drawings]

[0008] [Figure 1] 1 is a perspective view of a bench cutter according to a first embodiment, showing a state in which a movable placement unit is in a rear position. [Diagram 2]1 is a perspective view of a bench cutter according to a first embodiment, showing a state in which a movable placement unit is positioned in a lateral position. [Diagram 3] 1 is a plan view of a bench cutter according to a first embodiment, showing a state in which the turntable is located at a right-angle cutting position. [Figure 4] Fig. 1 is a plan view of a bench cutter according to a first embodiment, showing a state in which the turntable is rotated 45° to the left and positioned at an oblique cutting position. [Diagram 5] 4 is a cross-sectional view taken along line VV in FIG. 3, and is a vertical cross-sectional view of the movable placement portion. [Figure 6] FIG. 4 is a vertical cross-sectional view of the movable placement portion before being assembled to the base portion. [Figure 7] 4 is a side view showing a state in which first and second ring members are assembled to a support shaft. FIG. [Figure 8] 8 is a cross-sectional view taken along line VIII-VIII in FIG. 5, and is a vertical cross-sectional view of the movable placement portion. [Figure 9] 11 is a perspective view of a bench cutter according to a second embodiment, showing a state in which the movable placement unit is in a rear position. [Figure 10] 11 is a perspective view of a bench cutter according to a second embodiment, showing a state in which the movable placement unit is in a lateral position. [Figure 11] 11 is a plan view of a bench cutter according to a second embodiment, showing the turntable in a right-angle cutting position. [Figure 12] 11 is a perspective view of a bench cutter according to a third embodiment, showing a state in which the movable placement unit and the auxiliary placement unit are both positioned in a lateral position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] In one or more embodiments, for example, the bench cutter has a positioning fence that stands up from the turntable and against which the end face of the workpiece to be cut abuts. For example, the rotation base end of the movable placement part is located in an area on the front side of the base part that is half the distance from the positioning fence to the end of the base part on the front side in the face direction of the cutting tool.

[0010] Therefore, the movable placement part is positioned in a lateral position in front of the positioning fence, so that the workpiece is placed on the movable placement part, thereby stabilizing the workpiece that extends significantly to the side in a direction intersecting with the surface direction of the cutting tool.

[0011] In one or more embodiments, for example, the rotation base end of the movable support part is located near the front end of the base part, so that the movable support part further stabilizes the state in which the workpiece is placed.

[0012] In one or more embodiments, for example, the bench cutter has a positioning fence that stands up from the turntable and against which the end face of the workpiece to be cut abuts. For example, the rotation base end of the movable placement part is located on the front side of the positioning fence in the plane direction of the cutting tool, and the movable placement part intersects with the positioning fence in the rear position and does not intersect with the positioning plane in the side position.

[0013] Therefore, the movable placement section is stored compactly in the rear position, crossing the positioning fence. This allows the movable placement section to be enlarged. By positioning the large movable placement section in the side position, the workpiece is further stabilized.

[0014] In one or more embodiments, for example, a support leg for grounding is provided at the rotating tip of the movable support part, thereby suppressing deflection of the movable support part and further stabilizing support of the workpiece.

[0015] In one or more embodiments, for example, the support legs can be adjusted in height by tightening the screws. Therefore, for example, even if the installation surface is uneven, the height of the table top surface and the placement surface can be adjusted. This more reliably suppresses the deflection of the movable placement part, stabilizing the support of the workpiece.

[0016] In one or more embodiments, for example, the base is provided with a protrusion that engages with the movable support in the rearward position, thereby holding the movable support in the rearward position by the protrusion.

[0017] In one or more embodiments, for example, the cutting machine has an auxiliary placement part that is provided with a rotary base end that is rotatably supported on the turntable and cooperates with the turntable to support the workpiece. For example, the rotary base end of the auxiliary placement part is located forward of the rotary base end of the movable placement part. Therefore, the support of the front side of the workpiece is stabilized by the auxiliary placement part. This allows the support of the workpiece, which is wide in both the front and rear directions, to be stabilized.

[0018] In one or more embodiments, for example, the rotation base end of the auxiliary support part is located forward of the rotation base end of the movable support part when the turntable is rotated to the maximum angle, so that the support of the wide workpiece is stabilized in both the front and rear directions over the entire rotation range of the turntable.

[0019] In one or more embodiments, for example, the movable placement part and the auxiliary placement part have a positional relationship in which they can be rotated to come into contact with each other, thereby forming a large placement surface that is continuous in the front-rear direction, and thus supporting a wide workpiece in the front-rear direction more reliably and stably.

[0020] In one or more embodiments, for example, the movable placement part extends linearly from the rotary base end. Therefore, when the linear movable placement part is positioned, for example, in a lateral position, support of the workpiece that is long in the left-right direction is stabilized.

[0021] In one or more embodiments, for example, the movable placement part extends from the rotary base end in a bent shape. Therefore, the movable placement part forms a large placement surface in all directions, stabilizing support of the workpiece. In addition, the rear position of the movable placement part is made compact.

[0022] In one or more embodiments, for example, the body of the movable support part is made of light metal or synthetic resin, thereby reducing the weight of the movable support part.

[0023] In one or more embodiments, for example, the rotating base end of the movable support part is rotatably supported on the base part via a steel support shaft, thereby improving the support accuracy of the movable support part, and achieving smooth rotational movement and high support rigidity.

[0024] In one or more embodiments, for example, the mobile rest comprises a joint including a plurality of rest portions rotatably connected to one another, thus providing a large support area for the mobile rest while allowing compact storage.

[0025] In one or more embodiments, for example, the movable mounting part is rotatably supported on the base via a support shaft inserted into a support hole provided in the base. For example, the tip of the support shaft passes through the support hole, and a ring member made of an elastic member is attached to the tip to prevent the movable mounting part from coming off. Therefore, the movable mounting part is assembled to the base by inserting the support shaft into the support hole. This improves the ease of assembly of the movable mounting part. The support shaft is inserted into the support hole by elastically deforming the ring member. The ring member prevents the support shaft from coming off the support hole.

[0026] In one or more embodiments, for example, a ring member for suppressing rattle is attached to the support shaft and is made of an elastic member and is disposed in the support hole, so that rattle of the support shaft relative to the support hole is suppressed and the support rigidity of the movable support part is increased.

[0027] In one or more embodiments, for example, the spindle is formed with an annular groove for preventing the slip-out of the ring member. For example, the annular groove for preventing the slip-out has a tapered surface that is inclined with respect to the axial center line of the spindle at the axial end close to the ring member for preventing rattle. This facilitates the installation of the ring member for preventing rattle, which is installed by passing through the annular groove for preventing the slip-out. EXAMPLES

[0028] 1 to 4 show a bench cut-off machine 1 according to a first embodiment. In the first embodiment, a bench cut-off machine 1 known as a sliding circular saw is illustrated. As shown in Fig. 1, the bench cut-off machine 1 has a base 2 that is placed on a table or a floor (installation surface F), a turntable 4 on which a material to be cut is placed, and a cutting machine body 10.

[0029] A turntable 4 is supported on the upper surface of the base 2. The turntable 4 is supported so as to be rotatable left and right within a certain range via a table rotation support shaft 2a. The turntable 4 has a disk portion 8 that is substantially circular in a plan view. The top surface of the disk portion 8, which is a table top surface 4a, is provided horizontally. The turntable 4 can rotate horizontally around the center of the disk portion 8 (the table rotation support shaft 2a) as the center of rotation.

[0030] The cutting machine body 10 is provided above the turntable 4. A generally disk-shaped cutting tool 11, called a tipped saw blade, which is a type of circular saw blade, is rotatably supported on the cutting machine body 10. A user performs cutting work by positioning himself in front of the bench cutter 1. In the following description, the up-down and left-right directions of the members and components are defined based on the user. The front-rear directions of the members and components are defined based on the surface direction of the cutting tool 11 in the case of so-called right-angle cutting. The front side as seen from the user is the front side. In the case of so-called right-angle cutting, the cutting process progresses as the cutting tool 11 cuts backward into the workpiece W.

[0031] The base 2 has a pedestal portion 3 on both the left and right sides of the turntable 4. The pedestal portion 3 has a mounting surface 3b that is at the same top surface height as a table top surface 4a. The pedestal portion 3 is fixed to the base 2. The base 2 has side end surfaces 3a of the pedestal portion 3 as end surfaces in the left and right direction.

[0032] The turntable 4 has a table protrusion 5 that extends from the front of the disk part 8 along the side of the cutting tool 11. Two cutting edge plates 5a that are long in the front-rear direction are provided parallel to each other on the table top surface 4a and the top surface of the table protrusion 5. The cutting tool 11 enters into a groove 5b between the left and right cutting edge plates 5a. The top surface of the cutting edge plates 5a coincides with the table top surface 4a (top surface of the disk part 8).

[0033] Above the disk part 8 and the base part 3, a wall-shaped positioning fence 6 is provided which extends in the left-right direction and upward. The positioning fence 6 is supported on the upper surfaces of the left and right base parts 3. The positioning fence 6 has a positioning surface 6a which stands vertically on the front surface. The positioning surface 6a is located on a vertical plane which passes through the table rotation spindle 2a which is the rotation center of the turntable 4. The workpiece W placed on the table top surface 4a is positioned in the front-rear direction by coming into contact with the positioning surface 6a.

[0034] An arc-shaped miter scale plate 7 is provided in a region covering approximately half the circumference of the front part of the base 2. The miter scale plate 7 is provided so as to extend horizontally below the table top surface 4a. A scale indicating the miter angle of the turntable 4 is printed on the upper surface of the miter scale plate 7. The miter scale plate 7 has a plurality of groove-like positioning recesses 7b extending radially. The positioning recesses 7b are provided at predetermined angular intervals around the circumference of the miter scale plate 7. A positioning rod of a positive lock mechanism that locks the rotational position of the turntable 4 is inserted into the positioning recesses 7b.

[0035] A scale indicator 4f is provided on the side of the disk portion 8, which indicates the scale of the miter scale plate 7. The miter angle of the disk portion 8 and the table protrusion 5 can be confirmed by the scale of the miter scale plate 7 indicated by the scale indicator 4f. For example, as shown in FIG. 1, when the miter angle is 0°, the side of the cutting tool 11 and the positioning surface 6a intersect at a right angle. In this case, a so-called right-angle cut can be performed in which the cutting surface and the side of the workpiece W are perpendicular to each other. For example, as shown in FIG. 4, when the miter angle is 45° toward the left, the side of the cutting tool 11 and the positioning surface 6a intersect at 45°. In this case, a so-called diagonal cut (English name: miter cut) can be performed in which the cutting surface is inclined 45° to the end face of the workpiece W.

[0036] A body support arm 40 extending substantially upward is provided behind the turntable 4. The cutting machine body 10 is supported above the turntable 4 via the body support arm 40. The body support arm 40 is supported so as to be tiltable left and right relative to the arm support part 4b of the turntable 4, centered on a left and right tilting support shaft 40a extending in the front-rear direction. This makes it possible to perform a bevel cut (English name: bevel cut) by tilting the cutting machine body 10 left or right to make the cutting tool 11 cut into the top surface of the workpiece W at a fixed angle.

[0037] The rear portions of two slide bars 41 are connected to the upper portion of the main body support arm 40. The two slide bars 41 extend forward parallel to each other. A slide base 42 is supported via the two slide bars 41 so as to be slidable in the front-rear direction. By sliding the slide base 42 in the front-rear direction to cause the cutting tool 11 to cut a long distance in the front-rear direction, a workpiece W that is wide in the front-rear direction can be cut. The cutting machine main body 10 can be swung in the up-down direction relative to the slide base 42 around a vertical swing support shaft 10a extending in the left-right direction. In Figs. 3 and 4, the slide base 42 and the cutting machine main body 10 are omitted from illustration.

[0038] As shown in Figures 1 and 2, the cutting tool 11 is rotatably attached to the cutting machine body 10 in front of the vertical swing support shaft 10a. The cutting tool 11 is attached integrally to an output shaft (not shown) that extends in the left-right direction. By swinging the cutting machine body 10 downward, the cutting tool 11 can be caused to cut into a workpiece W (see Figures 3 and 4) placed on the turntable 4.

[0039] As shown in Figs. 1 and 2, the cutting machine body 10 has a fixed cover 12 and a movable cover 13 that cover the periphery of the cutting tool 11. The fixed cover 12 covers the upper half of the cutting tool 11. A white arrow 12a indicating the rotation direction of the cutting tool 11 is displayed on the left side of the fixed cover 12. The movable cover 13 can cover approximately the lower half of the cutting tool 11. The movable cover 13 rotates in conjunction with the up and down swing of the cutting machine body 10 to open and close the lower half of the cutting tool 11. When the cutting machine body 10 is swung upward, the movable cover 13 rotates in the closing direction (clockwise direction in Fig. 1). This covers the lower half of the cutting tool 11. The movable cover 13 rotates in the opening direction (counterclockwise direction in Fig. 1) in conjunction with the downward swing of the cutting machine body 10. This exposes the lower half of the cutting tool 11.

[0040] The cutting machine body 10 is provided with an electric motor 9 to the right of the fixed cover 12 and the movable cover 13 and to the left of the slide bar 41. The output of the electric motor 9 is transmitted to an output shaft via a reduction gear train. Therefore, the cutting tool 11 is rotated by the drive of the electric motor 9.

[0041] As shown in Figs. 1 and 2, a battery attachment section 25 is provided at the rear of the cutting machine body 10. A slide-mounted battery pack 26 is removably attached to the battery attachment section 25. The battery pack 26 is, for example, a lithium-ion battery with an output voltage of 36 V. The battery pack 26 can be removed from the battery attachment section 25 and repeatedly charged using a separately prepared charger. The battery pack 26 can be shared as a power source between other rechargeable power tools such as a screwdriver or an electric drill.

[0042] A loop-shaped operating handle 31 is provided on the upper front part of the cutting machine body 10. The operating handle 31 is disposed to the right of the fixed cover 12 and the movable cover 13. A switch lever 32 is provided on the inner periphery of the operating handle 31. A user can hook his / her finger on the switch lever 32 while holding the operating handle 31 and pull it. Pulling the switch lever 32 starts the electric motor 9. A lock-off button 33 is provided on the upper part of the operating handle 31. Pressing the lock-off button 33 makes it possible to pull the switch lever 32. This prevents the electric motor 9 from being started inadvertently.

[0043] The cutting machine body 10 has a loop-shaped carrying handle 34 behind the operating handle 31. The carrying handle 34 functions as a grip when the user carries the bench cutting machine 1 with the cutting machine body 10 locked at the bottom dead center. The cutting machine body 10 is provided with an illumination device 35 that irradiates illumination light downward. The illumination device 35 brightly illuminates the periphery of the area to be cut by the cutting tool 11. A laser irradiator 36 that irradiates laser light downward is provided inside the fixed cover 12. The laser light from the laser irradiator 36 is aligned with the ink line drawn on the workpiece W. This allows the cutting tool 11 to cut into the workpiece W in line with the ink line drawn on the workpiece W.

[0044] Two types of table fixing mechanisms are provided at the bottom of the table protrusion 5. A grip 46 is provided at the front of the table protrusion 5. The grip 46 has an uneven shape on the periphery so that the user can easily hold it and rotate it. The user can hold the grip 46 and rotate the turntable 4 horizontally relative to the base 2. A fixed rod (not visible in the figure) extends from the grip 46 toward the rear inside the table protrusion 5. The fixed rod is displaced back and forth by rotating the grip 46. The rotation position of the turntable 4 is locked and unlocked by displacing the fixed rod back and forth.

[0045] A positive lock mechanism of a different system from the fixing mechanism is provided at the bottom of the table protrusion 5. The positive lock mechanism has an unlocking lever 47 and a positioning rod. The unlocking lever 47 is provided on the left side of the front part of the table protrusion 5. The positioning rod extends toward the rear inside the table protrusion 5. The positioning rod is provided at approximately the same height as the miter scale plate 7. The rear end of the positioning rod can enter the positioning recess 7b by being displaced rearward. The rear end of the positioning rod can disengage from the positioning recess 7b by being displaced forward.

[0046] The positioning rod advances and retreats back and forth by moving the lock release lever 47 up and down. The positioning rod is displaced rearward and its rear end enters the positioning recess 7b of the miter scale plate 7, locking the turntable 4 at a certain angular position. The positioning rod is displaced forward and its rear end leaves the positioning recess 7b, allowing the turntable 4 to rotate left and right.

[0047] The bench cutter 1 of this embodiment is equipped with an extension table that places a large workpiece W that is wide in the front-rear or left-right direction in a stable position on the turntable 4. In this embodiment, a movable placement part 50 provided on the pedestal part 3 of the base 2 and an auxiliary placement part 60 provided on the table protrusion part 5 of the turntable 4 are exemplified as the extension table.

[0048] The movable placement parts 50 are provided on the left and right pedestal parts 3. In this embodiment, the left and right movable placement parts 50 have the same or symmetrical configuration. The left movable placement part 50 will be described below. The movable placement part 50 has a long rectangular bar-shaped main body 51. The main body 51 has a linear shape that extends straight. The main body 51 is made of light metal such as aluminum alloy or magnesium alloy, or synthetic resin such as polyamide or polycarbonate. This reduces the weight of the movable placement part 50. By combining the two, the support shaft 52 is made of steel and the main body 51 is made of light metal or synthetic resin, the weight of the entire movable placement part 50 can be reduced while maintaining appropriate rigidity.

[0049] The movable placement part 50 is supported by a step part 3c provided on the left side of the base part 3. The step part 3c is provided one step lower than the placement surface 3b. The rotation base part 50a (front end part in FIG. 1) of the main body 51 is supported on the front end side of the step part 3c via a support shaft 52. The main body 51 is supported rotatably in the surface direction (horizontal direction) of the table top surface 4a via the support shaft 52. The placement surface 51a is present on the top surface of the tip of the main body 51. The placement surface 51d is present on the top surface of the rotation base part 50a. The placement surface 51a and the placement surface 51d are circular in a plan view and are slightly higher than the main body 51 (the placement surface 51d is further in the shape of a ring with a concave center). The placement surface 51a and the placement surface 51d are aligned with the placement surface 3b of the base part 3 and the table top surface 4a.

[0050] The rotating base end 50a (support shaft 52) ​​of the movable placement part 50 (main body 51) is located in an area E on the front side of half the distance L from the positioning surface 6a of the positioning fence 6 to the front end 3f of the base part 3 (the end on the front side in the surface direction of the cutting tool 11). In this embodiment, the rotating base end 50a of the main body 51 is located in the vicinity of the front end 3f on the front side of the base part 3. The rotating base end 50a is located at the outer end in the left-right direction. Specifically, the left rotating base end 50a is located at the left end of the left base part 3, and the right rotating base end 50a is located at the right end of the right base part 3. The rotating base end 50a is provided at the end in the left-right direction, so that it can be rotated backward without interfering with the base part 3.

[0051] The main body 51 can be moved to the rear position shown in Figs. 1 and 3 and the side position shown in Figs. 2 and 4 by rotating it horizontally around the support shaft 52. In the rear position, the main body 51 extends rearward from the front end of the stepped portion 3c. Therefore, in the rear position, the main body 51 extends rearward intersecting the positioning fence 6. As a result, even if the main body 51 is made longer, it does not protrude toward the user in the rear position (when stored), so it does not get in the way of work. Therefore, it is easy to take the long main body 51 out to the side position and stabilize the loading state of the workpiece W.

[0052] In the lateral position, the main body 51 extends to the side without intersecting with the positioning fence 6. Positioning the main body 51 in the lateral position stabilizes the placement of the workpiece W, which is particularly long in the left-right direction. The center of rotation (support shaft 52) ​​of the main body 51 is located near the front end 3f of the base 3, so that even a workpiece W with a large front-to-rear width can be stably received by the main body 51 positioned in the lateral position.

[0053] 5 and 6, the support shaft 52 is connected to the front end portion (rotation base end portion 50a) of the main body 51 so as to protrude downward. The support shaft 52 is inserted from above into a support hole 3d provided in the stepped portion 3c, and the main body 51 is supported by the stepped portion 3c.

[0054] A steel shaft member is used for the support shaft 52. This improves the support accuracy of the main body 51. Furthermore, the steel support shaft 52 ensures smooth rotation of the main body 51 and high support rigidity.

[0055] A first ring member 53 and a second ring member 54 are attached to the support shaft 52. The first ring member 53 and the second ring member 54 are made of elastic materials such as O-rings. The first ring member 53 and the second ring member 54 are made of O-rings of the same size (diameter). The support shaft 52 is provided with a first tapered surface 52a, a first annular groove 52b, a second tapered surface 52c, and a second annular groove 52d from the lower end. The first ring member 53 is attached to the first annular groove 52b. The second ring member 54 is attached to the second annular groove 52d.

[0056] As shown in FIG. 7, the first ring member 53 and the second ring member 54 are attached from the lower end of the support shaft 52 with the support shaft 52 connected to the front end (rotation base end) of the main body 51. The second ring member 54 is attached first. The second ring member 54 is attached to the second annular groove 52d through the first annular groove 52b. A second tapered surface 52c is provided on the upper side (second annular groove 52d side) of the first annular groove 52b. The second tapered surface 52c allows the second ring member 54 to be easily moved from the first annular groove 52b to the second annular groove 52d. After the second ring member 54 is attached to the second annular groove 52d first, the first ring member 53 is attached to the first annular groove 52b. The first ring member 53 is easily attached to the first annular groove 52b through the first tapered surface 52a.

[0057] With the first ring member 53 and the second ring member 54 attached, the support shaft 52 is inserted into the support hole 3d of the base portion 3. The support shaft 52 is easily inserted into the support hole 3d by being guided by the first tapered surface 52a. The support shaft 52 is inserted into the support hole 3d while elastically deforming the first ring member 53 and the second ring member 54. The lower first ring member 53 comes out of the lower opening of the support hole 3d. This causes the first ring member 53 to elastically deform in the radially expanding direction. The first ring member 53, which has expanded in diameter on the lower opening side of the support hole 3d, prevents the support shaft 52 from coming out of the support hole 3d. The first ring member 53 functions as a ring member for preventing it from coming out.

[0058] The second ring member 54 is disposed in the support hole 3d. The second ring member 54 is elastically pressed against the inner surface of the support hole 3d. This suppresses wobbling of the support shaft 52. The second ring member 54 functions as a ring member for suppressing wobbling.

[0059] A cylindrical protruding portion 51b is provided on the rotating tip side (opposite the rotating base end portion 50a) of the main body 51 so as to protrude downward. A support leg 55 for grounding on an installation surface F is supported on the protruding portion 51b. The support leg 55 has a threaded shaft portion 55a. The height of the support leg 55 can be adjusted by adjusting the amount of tightening of the threaded shaft portion 55a into the protruding portion 51b. A compression spring 56 is interposed between the protruding portion 51b and the support leg 55. The biasing force of the compression spring 56 prevents the threaded shaft portion 55a from loosening.

[0060] The step portion 3c is provided with a protrusion 3e. When the main body 51 moves to the rear position and is positioned at the step portion 3c as shown in Fig. 8, the rib 51c of the main body 51 is engaged with the protrusion 3e. This causes the movable placement portion 50 to be held in the rear position.

[0061] The auxiliary placement part 60 has a configuration generally similar to that of the movable placement part 50. The auxiliary placement part 60 is supported by a step part 5c provided on the left side part of the table protrusion part 5. The auxiliary placement part 60 has a main body 61 in the shape of a long rectangular bar. The main body 61 has a linear shape that extends straight. The main body 61 is made of light metal such as an aluminum alloy or a magnesium alloy, or a synthetic resin such as polyamide or polycarbonate. This reduces the weight of the auxiliary placement part 60.

[0062] The step portion 5c is provided one step lower than the upper surface of the cutting edge plate 5a. A rotation base end portion 60a (front end portion in FIG. 1) of the main body 61 is supported on the front end side of the step portion 5c via a support shaft 62. The main body 61 is supported via the support shaft 62 so as to be rotatable in the planar direction (horizontal direction) of the table upper surface 4a. The auxiliary mounting portion 60 can be moved to a lateral position (see FIG. 4) in which it extends laterally and a rearward position (see FIGS. 1 to 3) in which it extends rearward by rotating the main body 61 in the horizontal direction. The upper surface (mounting surface 61a) of the main body 61 coincides with the upper surface of the cutting edge plate 5a and the table upper surface 4a.

[0063] Although not shown in the figure, like the support shaft 52 of the movable placement part 50, the support shaft 62 is fitted with a ring member for preventing it from coming off and a ring member for suppressing rattle, and is inserted from above into a support hole provided near the front end of the stepped part 5c for assembly. The two ring members prevent the support shaft 62 from coming off the support hole and suppress rattle. The groove in which the ring members are fitted is provided with a tapered surface for facilitating the installation of the ring members.

[0064] A cylindrical protruding portion 61b is provided on the rotating tip side (opposite the rotating base end portion 60a) of the main body 61 so as to protrude downward. A support leg 63 for grounding on the installation surface F is supported by the protruding portion 61b. Like the support leg 55 of the movable mounting portion 50, the height of the support leg 63 can be adjusted by adjusting the amount of tightening of the screw shaft portion relative to the protruding portion 61b. A compression spring 64 is interposed between the protruding portion 61b and the support leg 63. The biasing force of the compression spring 64 prevents the screw shaft portion from loosening.

[0065] As shown in Fig. 4, a protrusion 5d is provided on the step portion 5c. When the main body 61 moves to the rear position and is positioned on the step portion 5c as shown in Figs. 1 to 3, the rib of the main body 61 engages with the protrusion 5d. This causes the auxiliary placement portion 60 to be held in the rear position.

[0066] The auxiliary placing part 60 is disposed on the front side of the movable placing part 50. The auxiliary placing part 60 receives the front side of the workpiece W, further stabilizing the placing posture of the workpiece W. The auxiliary placing part 60 can be moved to a lateral position and used separately from the movable placing part 50. As shown in FIG. 4, the auxiliary placing part 60 can be moved to a lateral position together with the movable placing part 50 and used. This stabilizes the placing posture of the workpiece W, which is large in the front-rear and left-right directions.

[0067] The placement surface 51a of the movable placement part 50 and the placement surface 61a of the auxiliary placement part 60 are both flush with the table top surface 4a. The movable placement part 50 and the auxiliary placement part 60 are positioned so that they can be rotated and brought into contact with each other. Therefore, by adjusting the lateral position of the movable placement part 50 and the lateral position of the auxiliary placement part 60, they can be brought into contact with each other as shown by the two-dot chain line in Figure 4. This makes it possible to support the workpiece W more locally from below and stabilize the placement position of the workpiece W.

[0068] A fixed placement portion 65 is provided on the left side of the table protrusion 5, in front of the auxiliary placement portion 60. The fixed placement portion 65 is fixed to the table protrusion 5. The fixed placement portion 65 protrudes leftward from the left end of the table protrusion 5. The fixed placement portion 65 has a substantially trapezoidal shape in a plan view. The upper surface (placement surface) of the fixed placement portion 65 is provided horizontally at substantially the same height as the table upper surface 4a.

[0069] As shown in Fig. 3, the turntable 4 is rotated to a right-angle cutting position where the miter angle is 0°, which is the right-angle cutting posture. The corner 2d at the front left end of the pedestal 3 is located at the point on the base 2 that is the furthest from the table rotation spindle 2a. The spindle 62 and the fixed mounting part 65 are located outside a circular area that is centered on the table rotation spindle 2a and passes through the corner 2d. By moving the auxiliary mounting part 60 to a lateral posture, it protrudes leftward, which is the rotation direction of the turntable 4, outside the circular area.

[0070] As shown in FIG. 4, the turntable 4 is rotated to the maximum rotation angle (for example, 45°) to the left, which is the position for diagonal cutting. In this case, the support shaft 62 and the fixed placement part 65 are also located outside the circular area passing through the farthest corner 2d centered on the table rotation support shaft 2a. By moving the auxiliary placement part 60 to the lateral position, it protrudes to the left, which is the rotation direction of the turntable 4, outside the circular area. In addition, the support shaft 62 and the fixed placement part 65 are located to the left of an imaginary plane that includes the left end face of the base part 3 and extends in the front-rear direction. By moving the auxiliary placement part 60 to the lateral position, it is disposed to the left of the imaginary plane. The auxiliary placement part 60 moved to the lateral position can support the workpiece W from below on the side (left side) farther from the cutting machine body 10 than the placement surface 3b of the base part 3.

[0071] Therefore, no matter to what rotation angle the turntable 4 is rotated within its rotatable range, the auxiliary placement part 60 and the turntable 4 cooperate to place the workpiece W, which is wide in the front-rear direction and protrudes laterally from the table protrusion 5, in a stable position. In addition, since the support shaft 62 of the auxiliary placement part 60 is located outside the area passing through the corner 2d with the table rotation support shaft 2a as its center, the turntable 4 can be rotated to the maximum rotation angle so that the auxiliary placement part 60 and the base 2 do not interfere with each other.

[0072] The movable placement parts 50 provided on the left and right base parts 3 can be used by taking out only one of the main bodies 51 in a lateral position, or, if necessary, both the left and right main bodies 51 can be taken out in a lateral position and used.

[0073] According to the first embodiment, the bench cutter includes a movable placement part 50 that receives the workpiece W placed on the turntable 4 from below and stabilizes the placement position. The movable placement part 50 is movable between a rear position in which it extends rearward (in the surface direction of the cutting tool 11) from the rotating base end 50a (support shaft 52) ​​and a lateral position in which it extends sideways (in a direction intersecting the surface direction of the cutting tool 11) from the rotating base end 50a.

[0074] Therefore, since the movable placement part 50 is a rotary extension table that rotatably supports the main body 51, the weight can be reduced by an amount equivalent to the omission of a slide bar, for example, compared to a conventional sliding extension table. Also, the movable placement part 50 can move to a rear position and a side position, so that the workpiece W can be supported from below in a wider area.

[0075] According to the first embodiment, the rotating base end 50a (support shaft 52) ​​of the movable mounting portion 50 is located in an area E on the front side of the base portion 3, which is more than half the distance L from the positioning fence 6 to the front end 3f on the front side of the surface direction of the cutting tool 11 of the base portion 3.

[0076] Therefore, the movable mounting part 50 is positioned in a lateral position in front of the positioning fence 6, so that the workpiece W is mounted on the movable mounting part 50. This stabilizes the mounting position of the workpiece W, which is extended significantly to the side intersecting with the surface direction of the cutting tool 11.

[0077] According to the first embodiment, the rotation base end 50a (support shaft 52) ​​of the movable mounting part 50 is located on the front side of the positioning fence 6 in the surface direction of the cutting tool 11. Therefore, the movable mounting part 50 intersects with the positioning fence 6 in the rear position, but does not intersect with the positioning surface 6a in the side position.

[0078] Therefore, the movable placement part 50 is stored compactly in a rear position, crossing the positioning fence 6. This allows the movable placement part 50 to be enlarged (the main body 51 to be longer). Even if the main body 51 is formed to be sufficiently long, the movable placement part 50 does not get in the way of the user because it is stored in a position extending rearward. This further enhances the function of the movable placement part 50 in stabilizing the position of the workpiece W, and ensures good workability.

[0079] According to the first embodiment, the support leg 55 for grounding is provided at the rotating tip of the movable placement part 50. Therefore, bending of the movable placement part 50 is suppressed, and the support of the workpiece W is further stabilized.

[0080] According to the first embodiment, the height of the support leg 55 can be adjusted by the amount of tightening of the screw shaft portion 55a. Therefore, even if the installation surface F is uneven, the height of the table top surface 4a and the placement surface 51a can be adjusted. This more reliably suppresses the bending of the movable placement portion 50, stabilizing the support of the workpiece W.

[0081] According to the first embodiment, the base portion 3 is provided with a protrusion 3e that engages with the movable placement portion 50 in the rear position. Therefore, the movable placement portion 50 is held in the rear position by the protrusion 3e.

[0082] According to the first embodiment, the table protrusion 5 of the turntable 4 is provided with an auxiliary mounting part 60. The auxiliary mounting part 60 has a main body 61 that is rotatably supported on the step part 5c of the table protrusion 5 via a rotation base end 60a (support shaft 62). The auxiliary mounting part 60 also supports the workpiece W from below. The rotation base end 60a of the auxiliary mounting part 60 is located forward of the rotation base end 50a of the movable mounting part 50. Therefore, support of the front side of the workpiece W is stabilized by the auxiliary mounting part 60. This stabilizes support of the workpiece W, which is wide in both the front and rear directions.

[0083] According to the first embodiment, the rotation base end 60a of the auxiliary placement part 60 is located forward of the rotation base end 50a of the movable placement part 50 at the 45° oblique cutting position where the turntable 4 is rotated to the maximum angle. Therefore, the support of the workpiece W, which is wide in both the front and rear directions, is stabilized in the entire rotation area of ​​the turntable 4.

[0084] According to the first embodiment, the movable placement part 50 and the auxiliary placement part 60 have a positional relationship in which they can come into contact with each other by rotating the main bodies 51, 61 to a lateral position, respectively. Therefore, a large placement surface that is continuous in the front-rear direction is formed, so that the support of the workpiece W, which is wide in the front-rear direction, is more reliably and stably performed.

[0085] According to the first embodiment, the main body 51 of the movable placement part 50 extends linearly from the rotation base end part 50a (support shaft 52). Therefore, the linear movable placement part 50 is positioned in a lateral position, so that the support of the workpiece W, which is long in the left-right direction, is stabilized.

[0086] According to the first embodiment, the main body 51 of the movable placement portion 50 is made of light metal or synthetic resin, thereby making the movable placement portion 50 lighter in weight.

[0087] According to the first embodiment, the rotating base end 50a of the movable mounting part 50 is rotatably supported on the base part 3 via the steel support shaft 52. Therefore, the support accuracy of the movable mounting part 50 is improved, and smooth rotational movement and high support rigidity are obtained.

[0088] According to the first embodiment, a first ring member 53 for preventing slipping off and a second ring member 54 for suppressing rattle are attached to the support shaft 52. With both ring members 53, 54 attached, the support shaft 52 is inserted from above into the support hole 3d of the stepped portion 3c, and the main body 51 is assembled.

[0089] This improves the ease of assembly of the movable mounting portion 50 to the base portion 3. The first ring member 53 prevents the support shaft 52 from slipping out of the support hole 3d. The second ring member 54 also prevents the support shaft 52 from rattling relative to the support hole 3d, thereby improving the support rigidity of the movable mounting portion 50.

[0090] According to the first embodiment, the second tapered surface 52c is provided to facilitate the work of mounting the second ring member 54 on the support shaft 52. The second tapered surface 52c is provided along the upper portion (the second annular groove 52d side where the rattle suppressing second ring member 54 is mounted) of the first annular groove 52b where the retaining first ring member 53 is mounted. The second tapered surface 52c facilitates the work of mounting the rattle suppressing second ring member 54 into the second annular groove 52d.

[0091] 9 to 11 show a bench cutter 1 according to a second embodiment. The left and right pedestal parts 3 are provided with movable placement parts 70, respectively. The left and right movable placement parts 70 have a symmetrical configuration. The movable placement part 70 in the second embodiment is different from that in the first embodiment. The same reference numerals are used for members and configurations that do not require change, and their description is omitted. The movable placement part 70 in the second embodiment has a bent-shaped main body 71 in which a base part 71a and a tip part 71b are connected in an L-shape. A placement surface 71c is provided on the top surface of the tip of the base part 71a and the top surface of the tip of the tip part 71b. The main body 71 is made of light metal such as aluminum alloy or magnesium alloy, or synthetic resin such as polyamide or polycarbonate. This reduces the weight of the movable placement part 70.

[0092] In the second embodiment, the bent body 71 can receive the workpiece W from below in both the left-right and front-back directions. This allows a wider area of ​​the workpiece W to be received from below compared to the straight body 51 of the first embodiment, further stabilizing the placement state.

[0093] As in the first embodiment, the movable mounting portion 70 is supported by a step portion 3c provided on the left side of the base portion 3. The rotating base end portion 70a (support shaft 72) of the movable mounting portion 70 (main body 71) is located in an area E on the front side of half the distance L from the positioning surface 6a of the positioning fence 6 to the front end portion 3f of the base portion 3 (the end portion on the front side in the surface direction of the cutting tool 11). In the second embodiment, the rotating base end portion 70a of the main body 71 is also located in the vicinity of the front end portion 3f of the base portion 3.

[0094] The main body 71 can be moved to a rear position shown in FIG. 9 and a side position shown in FIG. 10 by rotating it horizontally around the support shaft 72. In the rear position, the base 71a of the main body 71 extends rearward from the front end of the step portion 3c. Therefore, in the rear position, the main body 71 extends rearward intersecting with the positioning fence 6. In the rear position, the tip 71b of the main body 71 extends left and right along the rear of the base portion 3. As a result, even if the base 71a of the main body 71 is made longer, it does not protrude toward the user in the rear position (when stored), so it does not interfere with work. Therefore, it is easy to take out the long main body 71 to the side position and stabilize the loading state of the workpiece W.

[0095] In the lateral position, the main body 71 extends to the side without intersecting with the positioning fence 6. Positioning the main body 71 in the lateral position stabilizes the placement of the workpiece W, which is particularly long in the left-right direction. The rotation base end 70a (support shaft 72) of the main body 71 is positioned near the front end 3f of the base 3, so that even a workpiece W with a large front-to-rear width can be stably received by the main body 71 positioned in the lateral position.

[0096] The movable mounting portion 70 according to the second embodiment has a support shaft 72 similar to that of the first embodiment. Therefore, the support shaft 72 has a ring member for preventing it from coming off, a ring member for suppressing rattle, and a tapered surface for mounting the ring member. The support shaft 72 is inserted from above into the support hole of the stepped portion 3c, and the main body 71 is assembled to the stepped portion 3c.

[0097] A height-adjustable support leg 73 for contact with the ground is provided on the rotating tip side of the main body 71 (the tip side of the tip portion 71b) in the same manner as in the first embodiment.

[0098] 10, a protrusion 3e is provided on the step 3c as in the first embodiment. When the main body 71 moves to the rear position and is positioned at the step 3c, the base 71a of the main body 71 engages with the protrusion 3e. This causes the movable placement part 70 to be held in the rear position.

[0099] In the second embodiment, the movable placement portion 70 and the auxiliary placement portion 60 are each moved to a lateral position, so that the placement position of a large workpiece W can be further stabilized in the left-right and front-rear directions.

[0100] According to the second embodiment, the main body 71 of the movable placement part 70 extends from the rotation base end 70a (support shaft 72) in a bent shape. Therefore, a large placement surface is formed in all directions by the movable placement part 70, stabilizing the support of the workpiece W. In addition, the tip end 71b of the main body 71 is bent in an L-shape, thereby making the rear position of the movable placement part 70 compact.

[0101] In the first and second embodiments, the length of the main body 51, 71 may be different between the left and right sides. The rotation centers (support shafts 52, 72) of the main bodies 51, 71 do not necessarily have to be symmetrical. The movable placement portion 50, 70 may be provided on only one of the left and right base portions 3.

[0102] The auxiliary placement portion 60 and the fixed placement portion 65 can be provided on the right side of the table projection portion 5 instead of or in addition to the left side.

[0103] A third embodiment is shown in Fig. 12. The bench cutter 1 according to the third embodiment has a movable placement part 80 provided on the base part 3, and an auxiliary placement part 90 provided on the table protruding part 5 of the turntable 4. The movable placement part 80 and the auxiliary placement part 90 have multi-jointed main bodies 81, 91, respectively. The main body 81 of the movable placement part 80 and the main body 91 of the auxiliary placement part 90 have the same multi-jointed structure.

[0104] The main body 81 of the movable mounting portion 80 has a base portion 81a and a tip portion 81b. The front end portion (rotation base end portion 80a) of the base portion 81a is supported on the front portion of the step portion 3c via a first support shaft 82 so as to be rotatable in the horizontal direction. The tip portion 81b is connected to the rotation tip side of the base portion 81a via a second support shaft 83 so as to be rotatable in the horizontal direction. The rotation axis of the first support shaft 82 and the rotation axis of the second support shaft 83 are arranged parallel to each other. The first support shaft 82 and the second support shaft 83 form a multi-joint structure in which the base portion 81a and the tip portion 81b can rotate horizontally independently. A mounting surface 81c is provided on the upper surface of the tip portion 81b. The mounting surface 81c is flush with the mounting surface 3b of the pedestal portion 3.

[0105] The main body 91 of the auxiliary mounting portion 90 has a base portion 91a and a tip portion 91b. The front end portion (rotation base end portion 90a) of the base portion 91a is supported on the front portion of the step portion 5c via a first support shaft 92 so as to be rotatable in the horizontal direction. The tip portion 91b is connected to the rotation tip side of the base portion 91a via a second support shaft 93 so as to be rotatable in the horizontal direction. The rotation axis of the first support shaft 92 and the rotation axis of the second support shaft 93 are arranged parallel to each other. The first support shaft 92 and the second support shaft 93 form a multi-joint structure in which the base portion 91a and the tip portion 91b can rotate horizontally independently. A mounting surface 91c is provided on the upper surface of the tip portion 91b. The mounting surface 91c is flush with the upper surface of the table top surface 4a and the upper surface of the cutting edge plate 5a.

[0106] According to the third embodiment, the movable placement part 80 and the auxiliary placement part 90 have a multi-joint structure in which the base part 81a (91a) and the tip part 81b (91b) are rotatably connected to each other. Therefore, the movable placement part 80 and the auxiliary placement part 90 have a large support area and can be stored compactly. In addition, the multi-joint structure of the movable placement part 80 and the auxiliary placement part 90 increases the freedom of the lateral position. This further stabilizes the placement position of the workpiece W.

[0107] Further modifications can be made to the first to third embodiments. The left and right pedestal portions 3 may be configured to combine and dispose the movable placement portion 50 according to the first embodiment, the movable placement portion 70 according to the second embodiment, and the movable placement portion 80 according to the third embodiment.

[0108] In the third embodiment, a configuration in which a support leg 84 (94) is provided at the connection between the base 81a (91a) and the tip end 81b (91b) is exemplified, but instead of or in addition to this, a support leg for grounding may be provided on the underside of the tip end of the tip end 81b (91b).

[0109] In the first to third embodiments, a sliding circular saw in which the cutting machine body 10 is capable of sliding in the front-to-back direction has been exemplified as the bench cutting machine 1, but the movable mounting portions 50, 70, 80 exemplified can also be applied to bench circular saws in which the cutting machine body does not slide back and forth.

[0110] The bench cutter 1 of the first to third embodiments is an example of a bench cutter in one aspect of the present disclosure. The base 2 of the first to third embodiments is an example of a base in one aspect of the present disclosure. The workpiece W of the first to third embodiments is an example of a workpiece in one aspect of the present disclosure. The turntable 4 of the first to third embodiments is an example of a turntable in one aspect of the present disclosure.

[0111] The cutting tool 11 of the first to third embodiments is an example of a cutting tool according to one aspect of the present disclosure. The cutting machine body 10 of the first to third embodiments is an example of a cutting machine body according to one aspect of the present disclosure. The base portion 3 of the first to third embodiments is an example of a base portion according to one aspect of the present disclosure.

[0112] The movable mounting portion 50 of the first embodiment, the movable mounting portion 70 of the second embodiment, and the movable mounting portion 80 of the third embodiment are examples of movable mounting portions in one aspect of the present disclosure. The rotating base end portion 50a of the first embodiment, the rotating base end portion 70a of the second embodiment, and the rotating base end portion 80a of the third embodiment are examples of rotating base ends in one aspect of the present disclosure. [Explanation of symbols]

[0113] 1. Benchtop cutting machine W…Material to be cut F…Installation surface 2. Base 2a...table rotation axis, 2d...corner 3…Pedestal 3a...Side end surface, 3b...Placement surface, 3c...Step part, 3d...Support hole, 3e...Protrusion part, 3f...Front end part 4. Turntable 4a...table top surface, 4b...arm support portion, 4f...scale indication portion 5…Table protrusion 5a...Blade plate, 5b...Slot hole, 5c...Step part, 5d...Protrusion part 6. Positioning fence 6a…Locating surface 7...Miter scale plate 7b... Positioning recess 8…Disc section 9. Electric motor 10…Cutting machine body 10a...Up and down swing shaft 11...Cut tool 12…Fixed cover 12a…Arrow 13... Movable cover 25…Battery mounting section 26…Battery pack 31...Operation handle 32…Switch lever 33…Lock off button 34…Carrying handle 35…Lighting equipment 36...Laser irradiator 40…Main body support arm 40a…Left and right tilting support shaft 41...Slide bar 42…Slide base 46…Grip 47…Unlock lever 50... Movable placement portion (first embodiment) 50a...rotating base end 51...Main body 51a... placement surface, 51b... protruding portion, 51c... rib, 51d... placement surface 52...Spindle 52a...first tapered surface, 52b...first annular groove, 52c...second tapered surface, 52d...second annular groove L: Distance from the positioning surface 6a of the positioning fence 6 to the front end 3f of the base 3 E: Area in front of half the distance L 53...First ring member 54...Second ring member 55…Support leg 55a...Screw shaft 56…Compression spring 60...Auxiliary placement section 60a...rotation base end 61...Main body 61a: placement surface; 61b: protruding portion 62...Spindle 63…Support leg 64…Compression spring 65...Fixed placement part 70... Movable placement portion (second embodiment) 70a...rotating base end 71...Main body 71a...Base, 71b...Tip 72...Spindle 73…Support leg 80... Movable placement portion (third embodiment) 80a...rotating base end 81...Main body 81a: base portion, 81b: tip portion, 81c: placement surface 82...1st spindle 83…Second spindle 90...Auxiliary placement section 90a...Rotary base end 91...Main body 91a: base portion, 91b: tip portion, 91c: placement surface 92...1st spindle 93...Second spindle

Claims

1. A benchtop cutting machine, With the base, a turntable rotatably supported by the base and on which a workpiece is placed; a cutting machine body supported on the turntable so as to be swingable up and down and equipped with a disk-shaped cutting tool; a base portion protruding upward from the base at a side of the turntable; a rotary base end portion rotatably supported on the base portion, and a movable placing portion supporting the workpiece in cooperation with the turntable; The movable mounting portion is movable between a rearward position extending from the rotating base end in the surface direction of the cutting tool and a lateral position extending from the rotating base end in a direction intersecting the surface direction of the cutting tool.

2. The bench cutter according to claim 1, a positioning fence that stands up from the turntable and against which an end surface of the workpiece is brought into contact; a bench cutting machine in which the rotating base end of the movable mounting portion is located in an area closer to the front of the base portion than half the distance from the positioning fence to the front end of the base portion in the face direction of the cutting tool.

3. The bench cutter according to claim 2, The rotary base end of the movable placement unit is located near the front end of the base unit.

4. The bench cutter according to any one of claims 1 to 3, a positioning fence that stands up from the turntable and against which an end surface of the workpiece is brought into contact; the rotation base end of the movable placement part is located on the front side of the positioning fence in a surface direction of the cutting tool, The bench cutter, wherein the movable placement portion intersects with the positioning fence in the rear position and does not intersect with the positioning surface in the side position.

5. The bench cutter according to any one of claims 1 to 3, A bench cutter in which a support leg for grounding is provided at the rotating tip of the movable placing part.

6. The bench cutter according to claim 5, The height of the support legs can be adjusted by tightening the screws.

7. The bench cutter according to any one of claims 1 to 3, The base portion is provided with a protrusion that engages with the movable placing portion in the rear position.

8. The bench cutter according to any one of claims 1 to 3, A bench cutter having a rotating base end that is rotatably supported on the turntable and an auxiliary loading section that cooperates with the turntable to support the material to be cut, wherein the rotating base end of the auxiliary loading section is positioned forward of the rotating base end of the movable loading section.

9. The bench cutter according to claim 8, A bench cutter in which the rotation base end of the auxiliary placement unit is located forward of the rotation base end of the movable placement unit when the turntable is rotated to the maximum angle.

10. The bench cutter according to claim 8, The movable placement portion and the auxiliary placement portion are positioned so that they can be rotated and brought into contact with each other.

11. The bench cutter according to any one of claims 1 to 3, The movable placement portion extends linearly from the rotating base end portion of the bench cutter.

12. The bench cutter according to any one of claims 1 to 3, The movable placement portion extends from the rotation base end portion in a bent shape.

13. The bench cutter according to any one of claims 1 to 3, The main body of the movable placing part is made of light metal or synthetic resin.

14. The bench cutter according to any one of claims 1 to 3, The rotary base end of the movable mounting portion is rotatably supported on the base portion via a steel support shaft.

15. The bench cutter according to any one of claims 1 to 3, The movable mounting portion is a bench cutter having a joint including a plurality of mounting portions rotatably connected to each other.

16. The bench cutter according to any one of claims 1 to 3, the movable placement portion is rotatably supported on the base portion via a support shaft inserted into a support hole provided in the base portion, The tip of the support shaft passes through the support hole, and a ring member made of an elastic member is attached to the tip to prevent it from coming off.

17. 17. The bench cutter according to claim 16, A bench cutter in which a ring member made of an elastic material and placed in the support hole to suppress rattle is attached to the support shaft.

18. 18. The bench cutter according to claim 17, The support shaft is formed with an annular groove for retaining the ring member, into which the ring member for retaining the ring member is attached. The annular groove for preventing slippage has a tapered surface that is inclined with respect to the axial center line of the support shaft at the axial end closest to the ring member for suppressing rattle.

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