Long ruler adapter

Abstract

To provide a long ruler adapter that allows for easier position adjustment of the cutting machine body. [Solution] The long ruler adapter 3 guides the portable cutting machine relative to the long ruler in the cutting direction. The long ruler adapter 3 has a rail that is guided relative to the long ruler and a base cover 5 that supports the portable cutting machine. The connecting member 6 displaces the base cover 5 in an intersecting direction that is perpendicular to the cutting direction relative to the rail. The locking part 6i restricts the displacement of the base cover 5 away from the rail.

Description

Technical Field

[0001] The present disclosure relates to a long ruler adapter. The long ruler adapter guides a portable cutting machine in the cutting direction with respect to, for example, a long ruler (English name: Guide Rail).

Background Art

[0002] As one of portable cutting machines, a cutter (English name: Masonry Cutter) is known. The cutter has a substantially rectangular plate-shaped base as in Patent Document 1 and a cutting machine body supported above the base. A substantially disc-shaped cutting tool that can project below the base is rotatably supported on the cutting machine body. The user abuts the lower surface of the base against the workpiece to be cut and moves the portable cutting machine in the cutting direction (forward) with the cutting tool rotated. Thereby, the cutting tool protruding downward from the lower surface of the base cuts the workpiece to be cut. The cutting of the workpiece to be cut is generally known as right-angle cutting for cutting the workpiece to be cut vertically and inclined cutting for cutting with the cutting tool tilted left and right.

[0003] A guiding device for linearly moving a cutter with respect to a workpiece to be cut has been conventionally known. This type of guiding device has a long ruler fixed to the upper surface of the workpiece to be cut and an adapter that moves on the long ruler. A linear rail is provided on the upper surface of the long ruler, and the adapter moves along the rail. The base of the cutter is attached to this adapter. The conventional guiding device corresponds to right-angle cutting by the cutter but cannot correspond to inclined cutting.

[0004] A portable saw is also known as one of portable cutting machines. A similar guiding device is also used for the portable saw. A guiding device having a configuration capable of switching between right-angle cutting and inclined cutting by the portable saw is disclosed. For example, an adapter is attached to the base of the portable saw of Patent Document 2 via two rods. Each rod extends in the left-right direction, with one end attached to the base and the other end attached to the adapter. Each rod is movable left and right with respect to the adapter, and the position of the saw body can be adjusted by moving each rod with respect to the adapter.

[0005] However, when making the above position adjustments, the user had to manually align the rod by looking at the markings provided on it. Therefore, there were concerns that the adjustment process was relatively time-consuming and that it would be difficult to perform highly accurate position adjustments. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2014-15013 [Patent Document 2] Japanese Patent Publication No. 2013-86277 [Overview of the project] [Problems that the invention aims to solve]

[0007] Therefore, a long ruler adapter that allows for easier position adjustment of the cutting machine body has traditionally been required. [Means for solving the problem]

[0008] According to one aspect of this disclosure, the long ruler adapter guides the portable cutting machine relative to the long ruler in the cutting direction. The long ruler adapter has a rail that guides the long ruler and a support part that supports the portable cutting machine. A displacement mechanism displaces the support part in a direction that intersects the cutting direction with respect to the rail. A regulating mechanism restricts the displacement of the support part away from the rail. Thus, the displacement mechanism moves the portable cutting machine in a direction that intersects the rail. The regulating mechanism then allows the portable cutting machine to be easily positioned at a predetermined regulated position away from the rail. For example, by restricting the displacement away from the rail to match the position where bevel cutting is to be performed, a tactile sensation of the two parts coming into contact can be felt during movement, allowing for easy and accurate adjustment of the position of the portable cutting machine. [Brief explanation of the drawing]

[0009] [Figure 1]This is a perspective view of a long ruler adapter and a portable cutting machine according to the first embodiment of the present disclosure. [Figure 2] This is a right-side view of a portable cutting machine. [Figure 3] This is a bottom view of a portable cutting machine. [Figure 4] This is a front view of a portable cutting machine. [Figure 5] This is a front view showing the portable cutting machine tilted 45 degrees to the left. [Figure 6] This is a front view of the material that has been cut at an angle. [Figure 7] This is a top view of the long ruler adapter. [Figure 8] This is a cross-sectional view taken along line VIII-VIII in Figure 7. [Figure 9] Figure 7 shows a cross-sectional view along the line IX-IX. [Figure 10] This is a cross-sectional view along line XX in Figure 7. [Figure 11] This is a perspective view of the connecting member. [Figure 12] Figure 11 is a longitudinal cross-sectional view of the connecting member. [Figure 13] This is a perspective view of the connecting member showing the base pin and end pin in their closest possible position. [Figure 14] This is a perspective view of the connecting member showing the base pin and end pin moved one step further apart. [Figure 15] This is a perspective view of the connecting member showing the base pin and end pin separated by two stages. [Figure 16] This is a perspective view of the connecting member according to the second embodiment. [Figure 17] Figure 16 is a longitudinal cross-sectional view of the connecting member. [Figure 18] This is a longitudinal cross-sectional view showing the base pin positioned away from the end pin. [Figure 19] This is a perspective view of the long ruler adapter and portable cutting machine according to the third embodiment. [Figure 20] Figure 19 is a top view of the long ruler adapter. [Figure 21] Figure 20 shows a cross-sectional view along the line XXI-XXI. [Figure 22] It is a cross-sectional view showing a state where the connecting member shown in FIG. 21 is moved to the right.

Embodiment for Carrying out the Invention

[0010] According to another aspect of the present disclosure, the adapter body includes a rail. The support body includes a support portion. The displacement mechanism has a connecting member. The connecting member is provided on one of the two members of the adapter body and the support body and is movably connected to the other. Therefore, by indirectly connecting the adapter body and the support body via the connecting member, the movement of the support body with respect to the adapter body can be smoothly and easily performed.

[0011] According to another aspect of the present disclosure, the connecting member is movable with respect to the adapter body. The restricting mechanism has a locking portion that restricts the distal displacement of the support portion. The locking portion is formed on the connecting member. The locking portion abuts on the adapter body. Therefore, the position of the support portion can be adjusted by the relative movement between the adapter body and the connecting member. Further, the locking portion is configured to abut on the adapter body. Therefore, the locking portion can be provided in the vicinity of the adapter body having a sufficient space, thereby suppressing the enlargement of the device.

[0012] According to another aspect of the present disclosure, the adapter body has a fixing member that fixes the connecting member to the adapter body. The fixing member presses the connecting member in a direction orthogonal to the extending direction of the connecting member. Therefore, by providing the fixing member in the adapter body having a sufficient space, the enlargement of the device can be suppressed.

[0013] According to another aspect of the present disclosure, the connecting member is pin-shaped and penetrates the adapter body. The locking portion is flange-shaped and formed on the connecting member. Therefore, the flange-shaped locking portion appropriately abuts on the adapter body. As a result, the distal displacement of the support portion can be appropriately restricted with a simple structure.

[0014] According to other aspects of this disclosure, the adjustment mechanism adjusts the amount of displacement of the support portion in the distant direction. The adjustment mechanism has a base-side pin on which the support body is provided, and an end-side pin that is movably connected to the base-side pin. The base-side pin and the end-side pin are part of a connecting member. Therefore, by moving the end-side pin relative to the base-side pin, the position of the support portion with respect to the rail can be finely adjusted. This allows for proper alignment with respect to the material to be cut. For example, it is possible to easily adjust the size of the chamfer of the material to be cut.

[0015] According to other aspects of this disclosure, steps are formed on opposing surfaces of the end pin and the base pin. The steps can come into contact with each other in a stepped manner. Therefore, the distance between the end pin and the base pin can be adjusted with a simple structure that creates steps between the end pin and the base pin.

[0016] According to other aspects of this disclosure, the connecting member has a male thread that passes through the end pin. The male thread is screwed into a female thread formed on the base pin. Thus, the end pin and the base pin can be easily fixed together by the male thread.

[0017] Another aspect of this disclosure is that a male thread is formed on the end pin and a female thread is formed on the base pin. The male and female threads are screwed together to connect the end pin and the base pin. Thus, the distance between the end pin and the base pin can be adjusted steplessly.

[0018] According to other aspects of this disclosure, the connecting member is movable relative to the adapter body. The regulating mechanism has an engaging portion and an elastic member that engages with the engaging portion. The engaging portion is formed on one of the two members, the connecting member and the adapter body. The elastic member is provided on the other of the two members. Therefore, the distant displacement of the support can be restricted with a simple structure in which the elastic member engages with the engaging portion.

[0019] According to other aspects of this disclosure, the engaging portion has a plurality of recesses aligned along the intersecting direction. The elastic member has a protrusion that detachably engages with the recess. The protrusion selectively engages with any one of the plurality of recesses. Therefore, by providing a plurality of recesses, the distant displacement of the support can be restricted at a plurality of positions.

[0020] According to other aspects of this disclosure, the elastic member is a leaf spring having an elongated hole extending along the intersecting direction. The leaf spring is fixed to the other of the two members via a male screw passed through the elongated hole. Thus, the position of the leaf spring can be adjusted using the elongated hole, thereby allowing for fine adjustment of the positional relationship between the connecting member and the adapter body.

[0021] According to other aspects of this disclosure, the long guide adapter guides a portable cutting machine for masonry relative to the long guide in the cutting direction. The long guide adapter has a rail that guides relative to the long guide and a support that supports the portable cutting machine for masonry in an inclined manner. A displacement mechanism displaces the support in an intersecting direction relative to the rail, in accordance with the inclination angle of the portable cutting machine for masonry. Therefore, in cutting operations using a long guide for a cutting machine for masonry such as a cutter, the cutting machine can be easily moved to match the inclination angle.

[0022] According to other aspects of this disclosure, an adjustment mechanism adjusts the distant displacement of the support. The adjustment mechanism has a base-side pin on which the support body is provided, and an end-side pin that is movably connected to the base-side pin. The end-side pin and the base-side pin are part of a connecting member. Therefore, by moving the end-side pin relative to the base-side pin, the position of the support with respect to the rail can be finely adjusted. This allows for more appropriate alignment with respect to the material to be cut.

[0023] According to other aspects of this disclosure, a portable cutting machine or a portable cutting machine for masonry has a base that supports the cutting machine body and a base cover that covers the lower surface of the base. A support is provided on the base or base cover. Therefore, the number of parts of the long ruler adapter can be reduced, resulting in a simple structure that suppresses the overall increase in size of the device.

[0024] Next, one embodiment of the present disclosure will be described with reference to Figures 1 to 13. As shown in Figure 1, the cutting machine 1 is a mason's cutter for cutting a material 7 such as stone. The cutting machine 1 is of a type in which the cutting tool 12 is positioned to the left of the electric motor 23, and because the left and right arrangement is reversed from the usual, it is called a "reverse-handed" machine. The cutting machine 1 is integrally assembled with a long ruler adapter 3. The long ruler adapter 3 is assembled so that it can move linearly in a certain direction with respect to a long ruler 2 fixed on the material 7 to be cut. With this long ruler 2 and long ruler adapter 3, the cutting machine 1 can be moved accurately in a linear manner over a long distance with respect to the material 7 to be cut, enabling high-precision cutting.

[0025] First, let's explain the cutting machine 1 in detail. As shown in Figure 1, the cutting machine 1 is a portable cutting machine that can be used to perform cutting work, for example, by holding it in one hand. The cutting machine 1 is a wet cutting machine that cuts the material to be cut 7 while pouring a liquid such as water onto the cutting area. The material to be cut 7 is mainly stone, but also includes concrete, asphalt, brick, glass, etc. The liquid such as water prevents the scattering of chips generated during cutting and cools the cutting area.

[0026] As shown in Figure 1, the cutting machine 1 has a base 10 that forms the foundation and a cutting machine body 11 supported above the base 10. The cutting machine body 11 is equipped with a rotating cutting tool 12 called a diamond wheel. The user holds the cutting machine 1 from the left side in Figure 2. In the following description, the direction of cutting is forward, and the opposite side, the user side, is defined as rear. The up, down, left, and right directions are defined relative to the user.

[0027] As shown in Figures 1 and 4, the cutting machine body 11 is supported on the upper surface of the base 10 via a front tilting support 13 and a rear tilting support 13. The front tilting support 13 and the rear tilting support 13 each have left and right tilting support shafts 14 (rotational center axes) that extend in the front-rear direction. The front left and right tilting support shafts 14 and the rear left and right tilting support shafts 14 are coaxial with each other. The cutting machine body 11 can tilt left and right around the left and right tilting support shafts 14.

[0028] As shown in Figure 5, the cutting machine body 11 can be tilted, for example, to the left by approximately 45°. By tilting the cutting machine body 11 left and right, it is possible to perform bevel cutting with the rotating blade 12 tilted relative to the lower surface of the base 10. A tilt fixing screw 15 is provided on the front tilt support part 13. By operating the tilt fixing screw 15 in the loosening direction, the cutting machine 1 can be tilted left and right. By operating the tilt fixing screw 15 in the tightening direction, the cutting machine body 11 can be fixed at a predetermined left and right tilt angle.

[0029] As shown in Figure 2, a vertical pivot shaft 16 extending in the left-right direction is provided at the rear of the front tilting support part 13. The cutting machine body 11 can pivot up and down around the vertical pivot shaft 16. By pivoting the cutting machine body 11 up and down, the depth of the cut into the material to be cut 7 by the rotating blade 12 can be adjusted.

[0030] As shown in Figures 1 and 2, a depth guide 17 for adjusting the cutting depth is provided at the rear of the base 10. The depth guide 17 extends in an arc shape along the circumferential direction of the vertical pivot shaft 16. A fixing lever 18 is provided on the depth guide 17. The fixing lever 18 is rotatable around a lever shaft 19 that extends to the left and right. The fixing lever 18 fastens the depth guide 17 to a fixing cover 20, which will be described later. By operating the fixing lever 18 in the screw-loosening direction, the cutting machine body 11 can be swung up and down. By operating the fixing lever 18 in the screw-tightening direction, the cutting machine body 11 can be fixed at a vertical swing angle that corresponds to a predetermined cutting depth.

[0031] As shown in Figure 1, the cutting machine body 11 has a fixed cover 20. The fixed cover 20 covers the upper half of the rotation of the rotating blade 12. The lower half of the rotation of the rotating blade 12 is exposed, protruding below the base 10. By moving the cutting machine 1 forward while rotating the rotating blade 12, the material to be cut 7 is cut by the protruding portion of the rotating blade 12.

[0032] As shown in Figures 2 and 4, the cutting machine body 11 has a cylindrical motor housing 21 and a gear housing 22 adjacent to the motor housing 21. The motor housing 21 houses an electric motor 23, which is called a DC brushless motor. The motor shaft 24 of the electric motor 23 extends in the left-right direction. The motor housing 21 has an air intake port 25 to the right of the electric motor 23. Ribs 26 are provided around the air intake port 25, protruding further to the right from the air intake port 25. For example, when the cutting machine 1 is placed with the motor housing 21 facing downwards, the ribs 26 create a gap between the mounting surface and the air intake port 25. This prevents chips from entering through the air intake port 25.

[0033] As shown in Figure 2, the cutting machine body 11 has a controller 27 housed behind the electric motor 23. The controller 27 is a resin-molded control board housed in a shallow rectangular case. The controller 27 is housed in a position where its thickness is aligned with the vertical direction. The controller 27 is equipped with a control circuit, a drive circuit, and an auto-stop circuit. The control circuit mainly consists of a microcontroller for controlling the operation of the electric motor 23. The drive circuit consists of an FET that switches the current to the electric motor 23 based on the control signal received from the control circuit. The auto-stop circuit cuts off the power supply to the electric motor 23 to prevent over-discharge or overcurrent conditions, depending on the detection result of the state of the rechargeable battery 43, which will be described later.

[0034] As shown in Figure 4, an exhaust port 28 is provided at the front of the gear housing 22. The intake port 25 and the exhaust port 28 are in communication through the inside of the motor housing 21 and the gear housing 22. A cooling fan (not shown) is attached to the motor shaft 24. As the cooling fan rotates together with the motor shaft 24, an airflow is created from the intake port 25 to the exhaust port 28. This airflow cools the electric motor 23 and other components.

[0035] As shown in Figures 3 and 4, the gear housing 22 houses a reduction gear mechanism 29 and a spindle 30 (output shaft) that is rotated by the reduction gear mechanism 29. The spindle 30 extends in the left-right direction and is rotatably supported in the gear housing 22. The rotational output of the motor shaft 24 of the electric motor 23 is reduced via the reduction gear mechanism 29 and transmitted to the spindle 30. The left end of the spindle 30 protrudes into the fixed cover 20. A rotating cutting tool 12 is attached to this protruding portion.

[0036] As shown in Figure 3, the rotating cutting tool 12 is clamped between the outer flange 31 and the inner flange 32 in a direction perpendicular to the spindle 30 (left-right direction). The clamped state of the rotating cutting tool 12 is locked by a tool fixing screw 33 tightened at the left end of the spindle 30. As a result, the rotating cutting tool 12 is fixed to the spindle 30 so that it cannot be displaced axially or rotated around its axis.

[0037] As shown in Figure 4, a shaft lock 34 is provided at the front of the gear housing 22. By pushing the shaft lock 34 into the gear housing 22, the spindle 30 becomes unable to rotate. This allows the rotating cutting tool 12 to be removed from the spindle 30 and replaced by rotating the cutting tool fixing screw 33 with a hex wrench 44 or the like.

[0038] As shown in Figure 1, a handle housing 35 is provided above the motor housing 21 and the gear housing 22. The handle housing 35 has a handle portion 36 for the user to grip. The handle portion 36 is loop-shaped, extends upward and backward from the front upper surface of the cutting machine body 11, and is connected to the rear of the cutting machine body 11. An elastomer resin layer for anti-slip purposes is provided on the surface of the handle portion 36.

[0039] As shown in Figure 2, a switch lever 37 is provided on the inner circumference of the handle portion 36. The switch lever 37 is designed to be operated by the user by gripping the handle portion 36 and pulling it with their finger. When the switch lever 37 is pulled, the electric motor 23 starts and the rotating blade 12 rotates. A lock-off button 38 is provided on the upper part of the handle portion 36. The switch lever 37 is locked in its normal state and cannot be pulled. The lock state of the switch lever 37 in the off position is released by pressing the lock-off button 38 horizontally to the right or left, making it possible to pull the switch lever 37. When the pulling operation is released, the switch lever 37 automatically returns to the lock-off state.

[0040] As shown in Figure 4, the left and right lock-off buttons 38 have cylindrical shapes in the parts that protrude from the handle portion 36 to the left and right. The upper part of the lock-off button 38 is notched outwards to the left and right relative to the lower part so that it has an inclined planar shape. This makes it easy for the user's fingertips to comfortably contact the inclined planar part of the lock-off button 38. In addition, the left and right lock-off buttons 38 are integrated with each other by their middle section and can move horizontally in the left and right direction. By pressing the inclined planar part of the upper part of the lock-off button 38, the user can move the lock-off button 38 horizontally in the left and right direction without discomfort, even without precisely moving it horizontally in the left and right direction, by applying a little downward force.

[0041] As shown in Figure 4, a light 39 is provided at the front of the handle housing 35. The light 39 is, for example, a light-emitting diode (LED). The light 39 is turned on by pulling the switch lever 37. The light 39 illuminates the cutting area of ​​the rotating blade 12. In the so-called right-angle cutting position, where the rotating blade 12 is perpendicular to the lower surface of the base 10, the light 39 is located to the right of the left-right tilting pivot axis 14. On the other hand, in the right-angle cutting position, the rotating blade 12 is located to the left of the left-right tilting pivot axis 14. Therefore, when performing a right-angle cut, the light 39 illuminates the cutting area of ​​the rotating blade 12, which is located to the lower left. Also, as shown in Figure 5, when performing an angled cut with the cutting machine body 11 tilted to the left, the light 39 illuminates the cutting area of ​​the rotating blade 12, which is located from above and below.

[0042] As shown in Figure 2, a concave adapter mounting portion 40 is provided on the side of the handle housing 35. A communication adapter 41 can be inserted and attached to the adapter mounting portion 40. The communication adapter 41 is capable of wireless communication with other ancillary equipment. Wireless communication allows the start and stop operations of the cutting machine 1 and the ancillary equipment to be synchronized. The communication adapter 41 can, for example, synchronize the cutting machine 1 with a dust collector that is installed separately from the cutting machine 1.

[0043] As shown in Figure 1, a battery mounting section 42 is provided at the rear of the cutting machine body 11. The mounting surface of the battery mounting section 42 faces rearward. A rechargeable battery 43 can be mounted in the battery mounting section 42 by sliding it along the mounting surface of the battery mounting section 42. The rechargeable battery 43 has a roughly rectangular box shape. The rechargeable battery 43 is, for example, a lithium-ion battery with an output voltage of 18V. The rechargeable battery 43 is rechargeable and can be removed from the battery mounting section 42 and charged with a separately prepared charger. The rechargeable battery 43 can be used as a power source for other rechargeable power tools such as screw tighteners and electric drills.

[0044] Next, the long ruler 2 will be described in detail. As shown in Figure 1, the long ruler 2 is a long, flat plate-shaped member in the front-to-back direction. As shown in Figure 4, a rubber anti-slip material 2a is provided on the back surface of the long ruler 2. This prevents the long ruler 2 from shifting relative to the material to be cut 7. Sliding materials 2b are provided on both the left and right sides of the long ruler 2. The sliding materials 2b extend along the front-to-back direction and are provided along the entire length of the long ruler 2. The sliding materials 2b improve the sliding properties of the long ruler adapter 3 relative to the upper surface of the long ruler 2. This allows the long ruler adapter 3 to move smoothly relative to the long ruler 2. These features enable efficient cutting by the cutting machine 1.

[0045] As shown in Figure 4, a guide projection 2c is formed on the upper right portion of the long ruler 2, projecting upward. The guide projection 2c extends parallel to the front-rear direction and is provided along the entire length of the long ruler 2. An auxiliary recess 2d, which has an upward-opening groove shape, is formed at the right end of the long ruler 2. The auxiliary recess 2d extends parallel to the front-rear direction and is provided along the entire length of the long ruler 2. An engagement recess 2e is also provided along the entire length on the left side of the auxiliary recess 2d.

[0046] Next, the long ruler adapter 3 will be described in detail. As shown in Figure 7, the long ruler adapter 3 has an adapter body 4 that is assembled to the long ruler 2 and a base cover 5 to which the cutting machine 1 can be attached. The adapter body 4 and the base cover 5 are arranged side by side and are connected to each other by a connecting member 6. The connecting member 6 is fixed to the base cover 5 and is assembled so as to be movable left and right relative to the adapter body 4. Therefore, the base cover 5 can move left and right relative to the adapter body 4 as the connecting member 6 moves.

[0047] The base cover 5 can move between an adjacent position (see dashed line in Figure 7) that is nearly adjacent to the adapter body 4 and a restricted position (see solid line in Figure 7) that is a predetermined distance away from the adapter body 4. As shown in Figure 4, the base cover 5 is set to be positioned adjacent when the cutting machine 1 performs right-angle cutting. Then, as shown in Figure 5, the base cover 5 is set to be positioned restricted when the cutting machine 1 performs bevel cutting. In other words, the position of the base cover 5 can be adjusted to match the displacement of the rotary blade 12 due to the tilt of the cutting machine 1.

[0048] The following describes in detail the components of the long ruler adapter 3. As shown in Figure 7, the base cover 5 is a rectangular plate-shaped member. A support portion 5a is formed in the center of the base cover 5, which is recessed from the surrounding area. The base 10 of the cutting machine 1 is attached to this support portion 5a. An opening 5b extending in the front-to-back direction is provided on the left side of the support portion 5a. As shown in Figure 1, when the cutting machine 1 is attached to the base cover 5, the rotating blade 12 extends downward through the opening 5b.

[0049] As shown in Figure 7, the support portion 5a is provided with multiple locking claws 5c on its left and right sides to secure the base 10. Each locking claw 5c is for temporarily fastening the base 10 of the cutting machine 1 by hooking it onto it. Specifically, first, the base 10 is inserted into the support portion 5a from right to left. This causes the left side of the base 10 to hook onto each locking claw 5c on the left side. Next, the right side of the base 10 is pushed in from above toward the support portion 5a. This causes the right side of the base 10 to hook onto each locking claw 5c on the right side. As a result, the base 10 is supported from above by each locking claw 5c and temporarily fastened to the base cover 5.

[0050] An adjustment section 5d is provided to the right of the opening 5b for adjusting the angle of the base 10 relative to the base cover 5. The adjustment section 5d has a protruding portion 5e that projects in a convex curved shape toward the right, and an adjustment screw 5f that is oriented with its axes to the left and right. The angle of the base 10 can be adjusted by pressing the left side of the base 10, which is temporarily fixed to the support portion 5a, against the adjustment section 5d and adjusting the position of the adjustment screw 5f.

[0051] The angle of the base 10 should preferably be adjusted so that the orientation of the rotating blade tool 12 is parallel to the direction of travel of the long ruler adapter 3. As an indicator, as shown in Figure 3, the rotating blade tool 12 is adjusted so that it is parallel to the indicator groove 5g formed on the back surface of the base cover 5. To do this, for example, a straight, long member such as a ruler is placed against the side of the rotating blade tool 12 and adjusted so that the long member is parallel to the indicator groove 5g. This makes it possible to orient the rotating blade tool 12 parallel to the direction of travel of the long ruler adapter 3.

[0052] As shown in Figure 7, after adjusting the angle of the base 10, the left-right position of the base 10 is fixed by tightening the two set screws 5h provided on the right side of the support part 5a. Furthermore, the base 10 is fixed by pressing down from above with the two slide plates 5i provided on the right side of the support part 5a. Specifically, the slide plates 5i are fixed by tightening the screws attached to them while they are extended toward the support part 5a. This suppresses vertical rattling of the base 10 relative to the base cover 5.

[0053] As shown in Figure 7, a wrench mounting section 5j is provided at the rear of the base cover 5, on which a hexagonal wrench 44 can be attached. Fixing sections 5k are provided at the upper and lower right sides of the base cover 5, on which the connecting member 6 is fixed. As shown in Figures 8 and 12, the fixing section 5k is cylindrical in shape and opens to the right. The pin-shaped connecting member 6, which will be described later, is inserted into the fixing section 5k from the right and assembled integrally with the fixing section 5k.

[0054] As shown in Figure 7, the adapter body 4 is a flat plate-shaped member extending in the front-to-back direction. As shown in Figure 4, a groove-shaped rail 4a opening downwards is formed on the lower surface of the adapter body 4. The rail 4a extends in the front-to-back direction and is formed along the entire length of the adapter body 4. The rail 4a is fitted from above onto the guide projection 2c of the long ruler 2. As a result, the adapter body 4 is integrally assembled to the long ruler 2 so that it can move along the guide projection 2c.

[0055] As shown in Figures 7 and 9, the adapter body 4 has a rattle prevention mechanism 4b relative to the long ruler 2. The rattle prevention mechanism 4b has a dial 4c that is rotated by the user. A screw shaft portion 4d is provided at the center of the lower surface of the dial 4c. A cylindrical operating portion 4e is integrally provided around the screw shaft portion 4d. The adapter body 4 has an operating recess 4f that accommodates the operating portion 4e of the dial 4c. A screw hole 4g ​​is provided at the center of the operating recess 4f. The screw shaft portion 4d of the dial 4c is screwed into the screw hole 4g. Therefore, by rotating the dial 4c, the dial 4c moves up and down. An elastic annular cushioning member 4h is sandwiched between the operating portion 4e of the dial 4c and the bottom of the operating recess 4f.

[0056] Furthermore, the operating recess 4f is connected to the rail 4a through a window portion 4i provided in a part of its periphery. Therefore, when the dial 4c is rotated in the direction of screw shaft tightening, the screw shaft portion 4d is tightened into the screw hole 4g ​​and the operating portion 4e moves downward. This pushes the cushioning member 4h outward in the radial direction (expanding radial direction). As a result, a part of the cushioning member 4h protrudes into the rail 4a through the window portion 4i. Therefore, the cushioning member 4h is elastically pressed against the side surface of the guide projection 2c of the long ruler 2. Thus, rattle of the rail 4a relative to the guide projection 2c can be suppressed. This enables rattle-free linear movement of the adapter body 4 and the cutting machine 1. In addition, the amount of rotation of the dial 4c can be adjusted to adjust the pressing force of the cushioning member 4h. This allows adjustment of the movement force (sliding resistance) of the cutting machine 1 on the long ruler 2.

[0057] As shown in Figures 7 and 10, the adapter body 4 has an anti-tipping mechanism 4j. The anti-tipping mechanism 4j has a lock switch 4k that the user slides in the left-right direction. The lock switch 4k is located near the upper right end of the adapter body 4. An engagement plate 4m is integrally attached to the lock switch 4k. The engagement plate 4m can move in the left-right direction together with the lock switch 4k along the lower surface of the adapter body 4. By sliding the lock switch 4k to the right, the engagement plate 4m protrudes to the right from the right end of the adapter body 4. The protruding engagement plate 4m enters the engagement recess 2e provided along the auxiliary recess 2d of the long ruler 2 (see dashed line in Figure 10). This prevents the adapter body 4 from lifting away from the long ruler 2. Therefore, stable cutting can be performed even when the cutting machine 1 is tilted to the left, as shown in Figure 5.

[0058] As shown in Figures 7 and 8, mounting portions 4n are provided on the upper and lower left sides of the adapter body 4 to which the connecting member 6 is attached. The mounting portion 4n has a through hole 4p that penetrates in the left-right direction. A screw hole 4s into which a fixing screw 4r can be attached is provided at the top of the mounting portion 4n. An outsert nut, which is a separate component from the mounting portion 4n, is press-fitted into the screw hole 4s. On the right side of each mounting portion 4n, a relief groove 4t is formed that extends in the left-right direction along the upper surface of the adapter body 4.

[0059] As shown in Figures 8 and 11, the connecting member 6 is a cylindrical pin extending in the left-right direction. The connecting member 6 has a base pin 6a located on the left side and an end pin 6g located on the right side. The base pin 6a has a threaded hole 6b extending axially from the right wall. The end pin 6g has a through hole 6h extending axially. A male thread 6k, such as a stepped socket head bolt, is passed through the through hole 6h of the end pin 6g from the right and screwed into the threaded hole 6b of the base pin 6a. In this way, the base pin 6a and the end pin 6g are assembled integrally with each other. A cylindrical sleeve 6r is press-fitted into the left end of the end pin 6g. A bottomed hole 6s with an inner diameter slightly larger than the outer diameter of the sleeve 6r is provided at the right end of the base pin 6a. When the end pin 6g and the base pin 6a are connected, the sleeve 6r and the bottomed hole 6s engage in a spigot fit through play, acting as a guide for axial movement.

[0060] As shown in Figure 8, the outer circumferential surfaces of the base pin 6a and the end pin 6g have multiple recessed surfaces 6m that are recessed around the entire circumference relative to the surrounding outer circumferential surface. Each recessed surface 6m is formed to be arranged at a constant interval along the axial direction. A locking portion 6i is formed at the right end of the end pin 6g, protruding radially outward in a flange-like manner. This locking portion 6i is formed to be radially larger than the opening diameter of the through hole 4p of the mounting portion 4n.

[0061] The procedure for attaching the connecting member 6 to the adapter body 4 is shown below. Initially, the base pin 6a and the end pin 6g are not connected to each other. The base pin 6a is pre-assembled to the base cover 5. First, the base pin 6a is passed through the through hole 4p of the mounting portion 4n from the left. Next, the end pin 6g is attached integrally to the base pin 6a that has passed through the through hole 4p. This allows the connecting member 6 to be assembled so that it can move axially relative to the mounting portion 4n. The relief groove 4t of the adapter body 4 is to avoid interference between the locking portion 6i of the end pin 6g and the upper surface of the adapter body 4. The relief groove 4t allows the connecting member 6 to move more smoothly on the adapter body 4. The movement of the connecting member 6 also allows the base cover 5 to move left and right relative to the adapter body 4. In this way, the connecting member 6 functions as a displacement mechanism 3a that moves the base cover 5 in an intersecting direction that intersects the cutting direction relative to the adapter body 4.

[0062] Then, the fixing screw 4r provided on the mounting portion 4n is operated in the screw tightening direction. This causes the fixing screw 4r to partially press against the connecting member 6 from above. This allows the connecting member 6 to be fixed to the adapter body 4. In other words, the position of the base cover 5 relative to the adapter body 4 can be fixed. Furthermore, by pressing the fixing screw 4r against each concave surface 6m of the connecting member 6, the distance between the base cover 5 and the adapter body 4 can be easily adjusted at regular intervals.

[0063] As shown in Figures 8 and 12, by moving the connecting member 6 to the left, the locking portion 6i comes into contact with the mounting portion 4n of the adapter body 4 from the right. This restricts further leftward movement of the connecting member 6 and the base cover 5 (restricted position). This allows the user to easily adjust the position of the cutting machine 1 when switching from right-angle cutting to bevel cutting.

[0064] As shown in Figures 13-15, the right end face of the base pin 6a has multiple steps 6c extending circumferentially. Each step 6c has a lower step 6d that forms the leftmost surface, a middle step 6e that extends to the right from the lower step 6d, and an upper step 6f that extends further to the right from the middle step 6e. Each step 6d, 6e, and 6f is formed in pairs so as to extend axially symmetrically. The base pin 6a also has multiple base grooves 6n arranged at equal intervals in the circumferential direction. On the other hand, the left end face of the end pin 6g has an engaging projection 6j that protrudes to the left. Two engaging projections 6j are formed so as to be axially symmetrical. The end pin also has an end groove 6p formed at the center of the engaging projection 6j.

[0065] Each engaging projection 6j abuts axially against one of the stepped surfaces 6d, 6e, or 6f when the base pin 6a and the end pin 6g are assembled together. This allows the position of the base pin 6a relative to the end pin 6g to be adjusted in three stages. The user can adjust the engaging projection 6j to abut against one of the stepped surfaces 6d, 6e, or 6f by loosening the male screw 6k and rotating the end pin 6g as appropriate. At that time, the user can visually align the base groove 6n of the base pin 6a with the end groove 6p of the end pin 6g to suitably abut the engaging projection 6j against one of the stepped surfaces 6d, 6e, or 6f.

[0066] The above adjustments allow for fine left-right adjustment of the cutting machine 1's position at the restricted position where the end pin 6g contacts the adapter body 4. For example, in this disclosure, the step height of the base pin 6a's step 6c is set to 0.5 mm. Therefore, the distance between the base pin 6a and the end pin 6g can be adjusted to 0 mm, 0.5 mm, or 1 mm. In this way, the connecting member 6 also functions as an adjustment mechanism 3b that adjusts the amount of displacement of the cutting machine 1 relative to the adapter body 4. As shown in Figure 6, by fine-tuning the left-right position of the cutting machine 1, the amount of straight surface 7a remaining (size of the chamfer) when cutting the material 7 at an angle can be adjusted. For example, if the material 7 is made of a hard material, widening the straight surface 7a can prevent damage to the material 7.

[0067] As described above, as shown in Figures 4 and 5, the long ruler adapter 3 guides the portable cutting machine 1 relative to the long ruler 2 in the cutting direction. The long ruler adapter 3 has a rail 4a that is guided relative to the long ruler 2 and a support part 5a that supports the portable cutting machine 1. The displacement mechanism 3a displaces the support part 5a in a direction that intersects the cutting direction with respect to the rail 4a. The regulating mechanism 6i restricts the displacement of the support part 5a away from the rail 4a. Therefore, the displacement mechanism 3a moves the portable cutting machine 1 in a direction that intersects the rail 4a. The regulating mechanism 6i then allows the portable cutting machine 1 to be easily positioned at a predetermined restricted position away from the rail 4a. For example, by restricting the displacement in accordance with the position where bevel cutting is to be performed, a tactile sensation of the two parts coming into contact can be felt during movement, allowing for easy and accurate position adjustment of the portable cutting machine 1. Furthermore, since there are no obstacles when moving the portable cutting machine 1 in the direction of approaching, it is possible to easily switch between the most retracted position and a predetermined far position (restricted position) multiple times. Therefore, it is possible to easily switch between right-angle cutting and bevel cutting, making it possible to repeatedly perform the task of cutting the material 7 at a right angle and then beveling the corners.

[0068] As shown in Figure 5, the adapter body 4 is equipped with a rail 4a. The support body 5 is equipped with a support portion 5a. The displacement mechanism 3a has a connecting member 6. The connecting member 6 is provided on one of the two members of the adapter body 4 and the support body 5 and is movably connected to the other. Therefore, by indirectly connecting the adapter body 4 and the support body 5 via the connecting member 6, the movement of the support body 5 relative to the adapter body 4 becomes smoother.

[0069] As shown in Figure 8, the connecting member 6 is movable relative to the adapter body 4. The regulating mechanism 6i has a locking portion 6i that restricts the distant displacement of the support portion 5a. The locking portion 6i is formed on the connecting member 6. The locking portion 6i abuts against the adapter body 4. Therefore, the position of the support portion 5a can be adjusted by the relative movement between the adapter body 4 and the connecting member 6. Furthermore, the locking portion 6i is configured to abut against the adapter body 4. Therefore, by providing the locking portion 6i near the adapter body 4 where there is ample space, the size of the device can be kept down.

[0070] As shown in Figure 8, the adapter body 4 has a fixing member 4r that secures the connecting member 6 to the adapter body 4. The fixing member 4r presses the connecting member 6 in a direction perpendicular to the extending direction of the connecting member 6. Therefore, by providing the fixing member 4r on the adapter body 4, where there is ample space, the size of the device can be kept down.

[0071] As shown in Figure 8, the connecting member 6 is pin-shaped and penetrates the adapter body 4. The locking portion 6i is flange-shaped and formed on the connecting member 6. Therefore, the flange-shaped locking portion 6i makes proper contact with the adapter body 4. As a result, the distant displacement of the support portion 5a can be appropriately restricted with a simple structure.

[0072] As shown in Figure 15, the adjustment mechanism 3b adjusts the amount of displacement of the support portion 5a in the distant direction. The adjustment mechanism 3b has a base-side pin 6a on which the support body 5 is provided, and an end-side pin 6g that is movably connected to the base-side pin 6a. The base-side pin 6a and the end-side pin 6g are part of the connecting member 6. Therefore, by moving the end-side pin 6g relative to the base-side pin 6a, the position of the support portion 5a relative to the rail 4a can be finely adjusted. This allows for proper alignment with the material to be cut 7. For example, the size of the chamfer on the material to be cut 7 can be easily adjusted.

[0073] As shown in Figure 15, steps 6c and 6j are formed on opposing surfaces of the end pin 6g and the base pin 6a. The steps 6c and 6j can come into contact with each other in a stepped manner. Therefore, the distance between the end pin 6g and the base pin 6a can be adjusted with a simple structure that creates steps 6c and 6j on the end pin 6g and the base pin 6a.

[0074] As shown in Figure 8, the connecting member 6 has a male screw 6k that passes through the end pin 6g. The male screw 6k is screwed into a female screw 6b formed on the base pin 6a. Therefore, the end pin 6g and the base pin 6a can be easily fixed together by the male screw 6k.

[0075] As shown in Figures 4 and 5, the long ruler adapter 3 guides the portable cutting machine for stonemasons 1 relative to the long ruler 2 in the cutting direction. The long ruler adapter 3 has a rail 4a that guides relative to the long ruler 2 and a support part 5a that supports the portable cutting machine for stonemasons 1 so that it can be tilted. The displacement mechanism 3a displaces the support part 5a in a direction that intersects the cutting direction relative to the rail 4a to match the tilt angle of the portable cutting machine for stonemasons 1. Therefore, in cutting work using the long ruler 2 of a cutting machine for stonemasons 1 such as a cutter, the cutting machine 1 can be easily moved to match the tilt angle.

[0076] As shown in Figure 15, the adjustment mechanism 3b adjusts the distant displacement of the support portion 5a. The adjustment mechanism 3b has a base-side pin 6a on which the support body 5 is provided, and an end-side pin 6g that is movably connected to the base-side pin 6a. The end-side pin 6g and the base-side pin 6a are part of the connecting member 6. Therefore, by moving the end-side pin 6g relative to the base-side pin 6a, the position of the support portion 5a with respect to the rail 4a can be finely adjusted. This allows for more appropriate alignment with respect to the material to be cut 7.

[0077] As shown in Figure 1, the portable cutting machine 1 or the portable cutting machine for stonemasons 1 has a base 10 that supports the cutting machine body 11 and a base cover 5 that covers the lower surface of the base 10. A support portion 5a is provided on the base cover 5. Therefore, the number of parts of the long ruler adapter 3 can be reduced, resulting in a simple structure that suppresses the overall increase in size of the device.

[0078] Other embodiments of the present disclosure will be described below. In the following description, components identical to those in the first embodiment will be denoted by the same reference numerals and their descriptions will be omitted.

[0079] As shown in Figure 16, the connecting member 50 of the second embodiment has a base-side pin 51 fixed to the fixing part 5k and an end-side pin 53 that is movably assembled to the base-side pin 51. As shown in Figures 17 and 18, the base-side pin 51 has a screw hole 52 that extends in the axial direction. The end-side pin 53 has a male screw 54 that protrudes to the left from its left end. This male screw 54 is screwed into the screw hole 52 of the base-side pin 51. As a result, the end-side pin 53 is integrally assembled with the base-side pin 51.

[0080] The screw structure described above allows the distance between the end pin 53 and the base pin 51 to be adjusted steplessly by rotating the end pin 53. For example, as shown in Figure 18, the distance between the end pin 53 and the base pin 51 can be increased by rotating the end pin 53 counterclockwise. In this state, by bringing the engaging portion 6i into contact with the mounting portion 4n, the base cover 5 can be shifted further to the left relative to the base cover 5. In this way, the left-right position of the base cover 5 relative to the adapter body 4 at the restricted position can be finely adjusted. Thus, the cutting position of the material to be cut 7 at the restricted position can be finely adjusted. A compression spring 55 is also provided between the base pin 51 and the end pin 53. The compression spring 55 suppresses rattling of the end pin 53 relative to the base pin 51. This suppresses rattling of the base cover and allows for proper cutting.

[0081] As described above, a male thread 54 is formed on the end pin 53, as shown in Figures 17 and 18. A female thread is formed on the base pin 51. The male thread 54 and the female thread are screwed together, connecting the end pin 53 and the base pin 51 to each other. Therefore, the distance between the end pin 53 and the base pin 51 can be adjusted steplessly.

[0082] As shown in Figure 19, the cutting machine 60 of the third embodiment is a portable circular saw for cutting materials such as wood. The cutting machine 60 has a rectangular flat base 61 that abuts against the upper surface of the long ruler 2, and a cutting machine body 62 that is supported on the upper surface of the base 61. The cutting machine body 62 is supported on the upper surface of the base 61 via a front tilting support part 13 and a rear tilting support part 13.

[0083] As shown in Figure 19, the cutting machine body 62 has a motor housing 21 and a gear housing 22. A disc-shaped rotating cutting tool (not shown) is mounted on the right side of the gear housing 22. The rotating cutting tool is a circular saw blade called a carbide-tipped saw blade.

[0084] As shown in Figure 19, the base 61 is provided on the upper surface of the long ruler 2 so as to contact the sliding material 2b. This allows the base 61 to move smoothly relative to the long ruler 2. Fixing parts 63 for fixing the connecting member 8i, which will be described later, are provided at two locations on the top and bottom of the base 61. Each fixing part 63 mainly consists of a groove that extends in the left-right direction. Through holes are formed on both the left and right sides of each fixing part 63, and a threaded fixing lever 64 is provided in the right-side through hole. By inserting the connecting member 8i into each fixing part 63 from the left and tightening it with the fixing lever 64, the connecting member 8i can be integrally fixed to the base 61.

[0085] As shown in Figure 19, the long ruler adapter 8 has an adapter body 8a that is assembled to the long ruler 2, and a plurality of connecting members 8i that are movably attached to the adapter body 8a. As shown in Figures 20 and 21, each connecting member 8i is made by bending a strip of a certain width in a crank shape in the middle in the longitudinal direction. The connecting member 8i has a central bent portion 8p, a first piece 8j on the left side of the bent portion 8p as shown, and a second piece 8k on the right side of the bent portion 8p as shown. The first piece 8j and the second piece 8k are offset from each other in the thickness direction by approximately the thickness of the plate. A scale 8m is displayed on the upper surface of the first piece 8j. A projection 8r that protrudes downward is formed on the lower surface of the second piece 8k.

[0086] As shown in Figure 21, a plurality of recesses 9a are formed on the lower surface of the second piece 8k of the connecting member 8i, arranged in the longitudinal direction. Each recess 9a is formed as a first position 9f, a second position 9g, a third position 9h, and a fourth position 9i. The protrusion 9c of the leaf spring 9b, which will be described later, selectively engages with one of these recesses 9a.

[0087] As shown in Figure 20, the adapter body 8a is a flat plate-shaped member that is long in the front-to-back direction. The adapter body 8a has a rail 4a that fits onto the guide projection 2c of the long ruler 2. This allows the adapter body 8a to move along the guide projection 2c. Mounting portions 8b are provided at two locations on the top and bottom of the adapter body 8a, to which the connecting member 8i is attached. Each mounting portion 8b has a groove shape that extends in the left-to-right direction. Each mounting portion 8b has a width and depth that allows the connecting member 8i to be inserted. A gate-shaped mounting opening 8c is integrally provided on the right side of each mounting portion 8b, straddling the mounting portion 8b in the width direction. The first piece 8j of the connecting member 8i is inserted into the mounting portion 8b from the right side so as to pass through the mounting opening 8c.

[0088] As shown in Figure 21, a screw hole for attaching a fixing screw 8h is formed in the upper part of the mounting opening 8c. By tightening the fixing screw 8h, the first piece 8j of the connecting member 8i inserted into the mounting part 8b is pressed from above. This fixes the connecting member 8i to the adapter body 8a. In other words, the position of the base 61 relative to the adapter body 8a can be fixed.

[0089] As shown in Figure 20, a plurality of auxiliary mounting parts 8e are formed adjacent to each other in front of the front mounting part 8b. A gate-shaped auxiliary mounting opening 8f is integrally provided on the right side of each auxiliary mounting part 8e, straddling each auxiliary mounting part 8e in the groove width direction. A screw hole 8g is provided in each auxiliary mounting opening 8f. A connecting member 8i removed from the front mounting part 8b can be attached to each auxiliary mounting part 8e. This allows the spacing between the front connecting member 8i and the rear connecting member 8i to be adjusted. This spacing is appropriately set to match the spacing of the fixing parts 63, which differ for each model of the base 61.

[0090] As shown in Figure 21, a leaf spring 9b is attached below the mounting portion 8b via a fixing screw 9e. The leaf spring 9b is a thin plate-like member extending in the left-right direction, with its central portion in the left-right direction bent in a crank shape. A convex portion 9c is formed on the left side of the leaf spring 9b, which is bent in a mountain shape and protrudes upward. This convex portion 9c engages detachably with each recess 9a of the connecting member 8i. This engagement allows the position of the connecting member 8i relative to the mounting portion 8b to be restricted (restricting mechanism 9).

[0091] As shown in Figure 21, when the convex portion 9c of the leaf spring 9b engages with the first position 9f of the concave portion 9a, the cutting machine 60 is set to perform a right-angle cut. At this time, as shown in Figure 20, the pointer 8n of the mounting portion 8b is aligned to point to 0 degrees on the scale 8m of the connecting member 8i. This allows the user to visually and intuitively understand that the position of the cutting machine 60 is suitable for a right-angle cut.

[0092] Then, by moving the connecting member 8i to the right so that the protrusion 9c disengages from the first position 9f, the protrusion 9c engages with the second position 9g. In this case, the cutting machine 60 is positioned to cut at a 15-degree tilt to the left or right. Similarly, when the protrusion 9c is engaged with the third position 9h, the cutting machine 60 is positioned at a 30-degree tilt. When the protrusion 9c is engaged with the fourth position 9i, the cutting machine 60 is positioned at a 45-degree tilt (see Figure 22). In this way, the long ruler adapter 8 can be easily adjusted to match the tilt angle of the cutting machine 60. The pointer 8n of the mounting part 8b is adjusted so that it points appropriately to each scale 8m of the connecting member 8i according to each position of the connecting member 8i.

[0093] As shown in Figure 21, an elongated hole 9d extending in the left-right direction is formed on the right side of the leaf spring 9b. The leaf spring 9b is fixed to the mounting part 8b by a fixing screw 9e that passes through the elongated hole 9d. This allows the user to finely adjust the left-right position of the leaf spring 9b relative to the mounting part 8b along the elongated hole 9d.

[0094] As described above, the connecting member 8i is made movable relative to the adapter body 8a, as shown in Figure 21. The regulating mechanism 9 has an engaging portion 9a and an elastic member 9b that engages with the engaging portion 9a. The engaging portion 9a is formed on one of the two members, the connecting member 8i and the adapter body 8a. The elastic member 9b is provided on the other of the two members. Therefore, the distant displacement of the support can be restricted with a simple structure in which the elastic member 9b engages with the engaging portion 9a.

[0095] As shown in Figures 21 and 22, the engaging portion 9a has a plurality of recesses 9a arranged along the intersecting direction. The elastic member 9b has a protrusion 9c that detachably engages with the recesses 9a. The protrusion 9c selectively engages with any one of the plurality of recesses 9a. Therefore, by providing a plurality of recesses 9a, the distant displacement of the support portion 13 can be restricted at multiple positions.

[0096] As shown in Figures 21 and 22, the elastic member 9b is a leaf spring 9b having an elongated hole 9d extending along the intersecting direction. The leaf spring 9b is fixed to the other of the two members via a male screw passed through the elongated hole 9d. Therefore, the position of the leaf spring 9b can be adjusted using the elongated hole 9d. This allows for fine adjustment of the positional relationship between the connecting member 8i and the adapter body 8a.

[0097] As shown in Figure 19, the portable cutting machine 60 has a base 61 that supports the cutting machine body 62. A support part 13 is provided on the base 61. Therefore, the number of parts of the long ruler adapter 8 can be reduced, resulting in a simple structure that suppresses the overall increase in size of the device.

[0098] Various modifications can be made to each of the embodiments described above. For example, the portable cutting machine was exemplified as a cutter or a portable circular saw. Instead, the present disclosure may be applied to, for example, a jigsaw.

[0099] The example illustrates a configuration in which the connecting member is fixed to the support body and movably connected to the adapter body. Alternatively, the connecting member may be movably connected to the support body. In that case, a fixing member may be provided on the support body.

[0100] The example shown shows a three-step configuration for the base pin. A two-step configuration or a configuration of four or more steps is also acceptable.

[0101] The elastic member may be a leaf spring or a plunger. The leaf spring may be attached to the connecting member. Accordingly, a recess into which the leaf spring can engage may be provided on the adapter body. The example given shows a configuration with four recesses on the connecting member. Alternatively, only two recesses corresponding to 0 degrees and 45 degrees may be provided, or recesses may be provided at any other position corresponding to any angle. [Explanation of Symbols]

[0102] 1 Cutting machine (portable cutting machine, portable cutting machine for masonry) 10 base 11 Cutting machine body 12 Rotary cutting tools 13 Tilt support part 14 Left and right tilting support shaft 15 Tilt fixing screw 16. Up and down pivot shaft 17 Depth Guide 18. Locking lever 19 Lever shaft 20 Fixed cover 21 Motor Housing 22 Gear Housing 23 Electric motor 24 motor shafts 25 Air intake 26 Ribs 27 Controllers 28 Exhaust vents 29 Reduction gear mechanism 30 spindles 31 Outer flange 32 Inner flange 33 Tool fixing screw 34 Shaft Lock 35 Handle Housing 36 Handle section 37 Switch lever 38 Lock-off button 39 Light 40 Adapter mounting section 41 Communication Adapter 42 Battery mounting section 43 Rechargeable batteries 44 Hex wrench 2 Long ruler 2a Anti-slip material 2b Sliding material 2c Guide protrusion 2d auxiliary recess 2e Engaging recess 3. Long ruler adapter 3a Displacement mechanism 3b Adjustment mechanism 4. Adapter body 4a Rail 4b Anti-wobble mechanism 4c dial 4d Screw shaft 4e Operating part 4f Working recess 4g screw hole 4h buffer material 4i Window section 4J Anti-tipping mechanism 4K Lock Switch 4m engagement plate 4n mounting part 4p through-hole 4r fixing screw (fixing component) 4s screw hole 4t relief groove 5. Base cover (support body) 5a Support part 5b Opening hole 5c Locking claw 5d adjustment section 5e Protrusion 5f Adjustment screw 5g index groove 5h set screw 5i Slide Plate 5J wrench mounting section 5k fixed part 6. Connecting Members 6a Base side pin 6b Threaded hole (female thread) 6c Stairs (steps) 6d Lower panel 6e middle surface 6th floor upper level 6g end pin 6h through hole 6i Locking mechanism (regulating mechanism) 6j Engaging protrusion (step) 6k male screw 6m concave 6n Base side groove 6p End drainage ditch 6r sleeves 6s bottomed hole 7 Material to be cut 7a Straight surface 50 Connecting members 51 Base side pin 52 Threaded holes (female threads) 53 End pins 54 Male screw 55 Compression spring 60 cutting machine 61 Base (support body) 62 Cutting machine body 63 Fixed part 64 Fixed lever 8. Long Ruler Adapter 8a adapter body 8b Mounting section 8c mounting socket 8d threaded hole 8e Auxiliary mounting section 8f Auxiliary mounting opening 8g screw hole 8h fixing screw 8i Connecting member 8j 1st piece 8k 2nd piece 8m scale 8n guidelines 8p Folding section 8r protrusion 9 Regulatory bodies 9a Recess (engaging portion) 9b Leaf spring (elastic member) 9c protrusion 9d long hole 9e fixed 9f, position 1 9g, position 2 9h, 3rd position 9i, 4th position

Claims

1. A long ruler adapter that guides a portable cutting machine in the cutting direction relative to a long ruler, A rail guided by the aforementioned long ruler, A support part for supporting the aforementioned portable cutting machine, A displacement mechanism that displaces the support portion in an intersecting direction that intersects the cutting direction with respect to the rail, A long ruler adapter having a regulating mechanism for restricting the distant displacement of the support portion in the direction away from the rail.

2. A long ruler adapter according to claim 1, The adapter body equipped with the aforementioned rail, Having a support body equipped with the aforementioned support portion, The displacement mechanism is a long ruler adapter having a connecting member provided on one of the two members of the adapter body and the support body, with the other member being movably connected to it.

3. A long ruler adapter according to claim 2, The connecting member is movable relative to the adapter body, The regulating mechanism is a long ruler adapter having a locking portion formed on the connecting member and in contact with the adapter body to restrict the distant displacement of the support portion.

4. A long ruler adapter according to claim 3, The adapter body is a long ruler adapter having a fixing member that fixes the connecting member to the adapter body by pressing the connecting member in a direction perpendicular to the extending direction of the connecting member.

5. A long ruler adapter according to claim 3 or 4, The connecting member is pin-shaped and penetrates the adapter body. A long ruler adapter in which the locking portion is flange-shaped and formed on the connecting member.

6. A long ruler adapter according to any one of claims 2 to 5, The support portion has an adjustment mechanism for adjusting the amount of displacement of the distant displacement, The adjustment mechanism is a long ruler adapter having a base-side pin which is part of the connecting member and on which the support body is provided, and an end-side pin which is part of the connecting member and is movably connected to the base-side pin.

7. A long ruler adapter according to claim 6, A long ruler adapter having stepped surfaces formed on opposing sides of the end pin and the base pin, allowing them to contact each other in a gradual manner.

8. A long ruler adapter according to claim 7, The connecting member has a male thread that passes through the end pin and screws into a female thread formed on the base pin, forming a long ruler adapter.

9. A long ruler adapter according to claim 6, A long ruler adapter in which the end pin and the base pin are connected to each other by screwing together a male thread formed on the end pin and a female thread formed on the base pin.

10. A long ruler adapter according to claim 2, The connecting member is movable relative to the adapter body, The regulating mechanism is a long ruler adapter having an engaging portion formed on one of the two members, the connecting member and the adapter body, and an elastic member provided on the other of the two members that engages with the engaging portion.

11. A long ruler adapter according to claim 10, The engaging portion has a plurality of recesses arranged along the intersecting direction, A long ruler adapter comprising an elastic member with a protrusion that detachably engages with the recess, wherein the protrusion selectively engages with one of the plurality of recesses.

12. A long ruler adapter according to claim 10 or 11, The elastic member is a leaf spring having an elongated hole extending along the intersecting direction, A long ruler adapter in which the leaf spring is fixed to the other of the two members via a male screw that passes through the elongated hole.

13. A long ruler adapter for guiding a portable cutting machine for stonemasons in the cutting direction relative to a long ruler, A rail guided by the aforementioned long ruler, A support part that allows the aforementioned portable cutting machine for stonemasons to be tilted, A long ruler adapter having a displacement mechanism that displaces the support portion in a direction intersecting the cutting direction relative to the rail, in accordance with the inclination angle of the portable cutting machine for stonemasons.

14. A long ruler adapter according to claim 13, The adapter body equipped with the aforementioned rail, A support body having the aforementioned support portion, The support portion has a restricting mechanism that restricts its displacement away from the rail, The displacement mechanism has a connecting member that is movably connected to the adapter body and to which the support body is provided, The regulating mechanism is a long ruler adapter having a locking portion formed on the connecting member and in contact with the adapter body to restrict the distant displacement of the support portion.

15. A long ruler adapter according to claim 14, The support portion has an adjustment mechanism for adjusting the distant displacement, The adjustment mechanism is a long ruler adapter having a base-side pin which is part of the connecting member and on which the support body is provided, and an end-side pin which is part of the connecting member and is movably connected to the base-side pin.

16. A long ruler adapter according to any one of claims 1 to 15, The aforementioned portable cutting machine or the aforementioned portable cutting machine for stonemasons has a base that supports the cutting machine body and a base cover that covers the lower surface of the base. A long ruler adapter in which the support portion is provided on the base or the base cover.

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