Portable processor

Abstract

To suppress enlargement of a base in a portable processor which is available together with a long ruler by fitting a guide groove of the base and a projecting line of the long ruler.SOLUTION: A portable processor which is available together with a long ruler including a projecting line extending in a length direction comprises a main base, a subbase, and a processor main body. The main base includes an abutment surface to be abutted to a workpiece or the long ruler. The processor main body is supported by the main base at an upper side at an opposite side of a lower side, where the workpiece is disposed, with respect to the abutment surface, and a blade tool is mounted at an edge of a first side in a lateral direction. The subbase includes a groove portion which extends in a longitudinal direction and is fitted in a slidable manner to the projecting line of the long ruler. The subbase is mounted in the main base in a removable manner selectively at a first side of the main base and a second side at an opposite side of the first side.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present disclosure relates to a portable processing machine. [Background technology]

[0002] There is known a portable processing machine capable of processing a workpiece, which has a substantially rectangular base having an abutment surface for abutting against the workpiece, and a processing machine body on which a cutting tool is attached. As one type of such portable processing machine, Patent Document 1 describes a circular saw in which a long ruler is placed on the top surface of a workpiece, and the base is placed on the top surface of the long ruler to perform processing work. This circular saw has a guide groove provided on the bottom surface of the base and extending in the front-rear direction. The guide groove is formed so as to be able to fit into a protrusion provided on the long ruler and extending in the longitudinal direction. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-162269 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the circular saw described in Patent Document 1, the guide groove of the base is fitted with the protrusion of the long ruler, so that the circular saw can slide stably along the longitudinal direction. Therefore, the workpiece can be cut quickly and accurately over a long distance. In such a circular saw, when the base is directly abutted against the workpiece to perform processing, it is possible to stabilize the processing by, for example, expanding the base toward the cutting tool side. However, when the expanded part is fitted to the long ruler, it does not come into contact with the long ruler and does not have any function. Therefore, it is considered that such expansion (enlarging the base) may affect operability. Therefore, there has been a demand for a technology that can suppress the enlargement of the base not only in circular saws but also in portable processing machines that can be used with a long ruler by fitting the guide groove of the base with the protrusion of the long ruler. [Means for solving the problem]

[0005] According to one aspect of the present disclosure, a portable processing machine is provided. The portable processing machine is configured to be usable with a guide rail having a ridge extending in a longitudinal direction. The portable processing machine includes a main base, a sub-base, and a processing machine body. The main base has an abutment surface for abutting against a workpiece or the long ruler. The processing machine body is provided on the upper side opposite to the lower side on which the workpiece is placed with respect to the abutment surface and is supported by the main base. When a direction along the processing progress direction of the portable processing machine is defined as a front-rear direction and a direction intersecting the front-rear direction is defined as a left-right direction, the processing machine body is configured so that a cutting tool is attached to an edge portion of a first side in the left-right direction. The sub-base includes a groove portion extending in the front-rear direction. The groove portion is configured to slidably fit into the ridge of the long ruler. The sub-base is configured to be selectively removably attached to the main base on the first side of the main base and on a second side of the main base opposite the first side.

[0006] According to this aspect, the sub-base is configured to be selectively attached to the first side and the second side of the main base. Therefore, the user can select the position where the sub-base is attached to the main base depending on the processing purpose. Therefore, a highly convenient portable processing machine can be provided. In addition, for example, compared to a configuration in which the parts corresponding to the sub-base are provided on the first side and the second side of the main base, the size of the portable processing machine can be suppressed. [Brief description of the drawings]

[0007] [Figure 1] FIG. [Diagram 2] FIG. 2 is a perspective view showing the circular saw with the sub-base removed. [Diagram 3] FIG. 13 is a top view of the sub-base with the groove portion facing upward. [Figure 4] FIG. 13 is a top view of the sub-base with the groove portion facing downward. [Diagram 5] This is a rear view of the circular saw, with the sub-base attached to the right of the main base with the groove facing up. [Figure 6] This is a rear view of the circular saw, with the sub-base attached to the left of the main base with the groove facing downward. [Figure 7] FIG. 1 is a front view of a circular saw comparing (A) the state in which the sub-base is attached to the right side of the main base with the groove on top, and (B) the state in which the sub-base is attached to the left side of the main base with the groove on the bottom. [Figure 8] FIG. 2 is a perspective view showing a state in which the circular saw is used together with a long ruler, with the circular saw in a cutting start position. [Figure 9] FIG. 2 is another perspective view showing the circular saw being used with the long ruler, with the circular saw in the starting position for cutting. [Figure 10] FIG. 2 is a top view showing the circular saw being used with a long ruler, with the circular saw in a start position for cutting. [Figure 11] FIG. 11 is a partially enlarged view of FIG. [Figure 12]FIG. 2 is a perspective view for explaining a slider, a stopper, a rotating member, and a connecting member of the long ruler, and a sub-base. [Figure 13] This is a diagram of FIG. 11 with the base of the long ruler removed. [Figure 14] 14 is a top view of the long ruler with the base removed, showing a state in which the rotating member has been rotated in direction R2 from the state in FIG. 13, and the slider and the rotating member have been moved forward together with the slider. [Figure 15] 15 is a cross-sectional view taken along the line XV-XV of FIG. 10. [Figure 16] 16 is a cross-sectional view taken along line XVI-XVI of FIG. 10. [Figure 17] 11 is a cross-sectional view taken along line XVII-XVII of FIG. 10. [Figure 18] FIG. 18 is a cross-sectional view taken along line XVIII-XVIII of FIG. 15. [Figure 19] FIG. 10 is a perspective view corresponding to FIG. 9, in which the circular saw has been moved forward from the starting position. [Figure 20] This is a top view showing the state in which the circular saw is used together with the long ruler, and the circular saw has been moved forward from the starting position for cutting. [Figure 21] 19 is a cross-sectional view corresponding to FIG. 18, showing a state in which the circular saw has been moved forward from the cutting start position. [Figure 22] 13 is a perspective view corresponding to FIG. 12, showing a state in which the rotating member is rotated in a direction R2. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] In one non-limiting embodiment of the present disclosure, the groove may include a bottom wall and a side wall connected to the bottom wall. The sub-base may be configured such that when the sub-base is attached to the first side of the main base with the bottom wall as the lower side, the lower surface of the bottom wall and the abutment surface are positioned in the same plane. The sub-base may be configured such that when the sub-base is attached to the second side of the main base with the bottom wall as the upper side, the groove may fit onto the protrusion. According to this embodiment, when the sub-base is attached to the first side, the lower surface of the sub-base and the lower surface of the main base are at the same position in the up-down direction, so that the lower surface of the main base and the lower surface of the sub-base can be abutted against the workpiece. Also, when a long ruler is used, the groove portion can be fitted into the protrusion. Therefore, it is possible to select a processing operation in which the main base and the sub-base are abutted directly against the workpiece, or a processing operation in which the long ruler is abutted against the workpiece. Therefore, it is possible to provide a portable processing machine that is convenient and stable, and is not large in size.

[0009] In addition to or instead of the above embodiment, the bottom wall of the sub-base may be provided with a recess recessed toward the side wall between a first end of the sub-base in the fore-and-aft direction and a second end opposite the first end. According to this embodiment, when the sub-base is attached to the first side of the main base, at least a part of the cutting tool of the portable processing machine or the cover that protects the cutting tool can be disposed between the recess of the sub-base and the main base. Therefore, the length of the sub-base and the main base in the left-right direction can be shortened compared to a configuration in which the sub-base does not have a recess. Therefore, the portable processing machine can be made smaller.

[0010] In addition to or instead of the above embodiment, the sub-base may include a rail portion extending toward a side away from the side wall in the left-right direction. The main base may include a first insertion opening, a second insertion opening, and a rail receiving portion. The first insertion opening may be provided on the first side of the main base and configured to be able to receive the rail portion from the first side. The second insertion opening may be provided on the second side of the main base and configured to be able to receive the rail portion from the second side. The rail receiving portion may be configured to be connected to the first insertion opening and the second insertion opening and to extend in the left-right direction. According to this embodiment, the rail portion of the sub-base can be selectively inserted into the first insertion opening and the second insertion opening on the first side of the main base. Also, the rail receiving portion provided on the main base is connected to the first insertion opening and the second insertion opening. Therefore, when the rail portion is inserted from the first insertion opening and when the rail portion is inserted from the second insertion opening, the rail portion can be guided by the single rail receiving portion and attached to the main base. Therefore, it is possible to prevent the configuration for attaching the sub-base to the main base from becoming complicated.

[0011] In addition to or instead of the above embodiment, the sub-base may be provided at a first end in the fore-and-aft direction, and the side wall may have a notch cut toward the first side when the sub-base is attached to the second side of the main base. According to this embodiment, the notch of the portable processing machine can be engaged with an external part. For example, if the long ruler has a member (sliding part) that slides in the front-rear direction and the portable processing machine is used together with the long ruler, the sliding part can be engaged with the notch to move the sliding part forward as the portable processing machine moves forward.

[0012] In addition to or instead of the above embodiment, the sub-base may include a first engagement portion provided at the first end portion, the first engagement portion being configured to engage with a sliding portion that slides the long ruler in the front-rear direction when the sub-base is attached to the second side of the main base and the portable processing machine is used together with the long ruler. According to this embodiment, by engaging the first engagement portion of the sub-base with the sliding portion of the long ruler, the sliding portion can be moved forward as the portable processing machine moves forward.

[0013] In addition to or instead of the above embodiment, the processing machine body may have a gripping part for a user to grip. In the front-rear direction, when the side where the processing of the portable processing machine proceeds is the front side and the opposite side to the front side is the rear side, the long ruler used with the processing machine body may have a fixed part provided on the rear side of the sliding part and a connecting member connected to the fixed part and the sliding part. The connecting member may be configured so that when it is extended from a predetermined initial state with the movement of the sliding part to the front side, a biasing force toward the rear side acts so as to return to the initial state. When the portable processing machine is used with the long ruler, the first engagement part of the portable processing machine may be configured to engage with the sliding part and move the sliding part to the front side in response to the portable processing machine being moved to the front side. When the portable processing machine is used together with the long ruler, the first engagement portion may be configured to be pushed by the sliding portion by the biasing force of the connecting member and moved to the rear side when the forward movement of the portable processing machine is released. According to this embodiment, by engaging the first engagement part of the sub-base with the sliding part of the long ruler, the sliding part can be advanced as the portable processing machine advances. Furthermore, when the force applied by the user in the direction of advancing the portable processing machine is released, such as at the end of processing, the connecting member moves toward the fixed part due to the biasing force, and the first engagement part is pushed backward by the sliding part connected to the connecting member. Therefore, the portable processing machine can be easily returned to the processing start position.

[0014] In addition to or instead of the above embodiment, the sub-base may include a second engagement portion provided on a second end side opposite the first end in the front-rear direction from the first engagement portion. The long ruler used with the processing machine body may include a long ruler side engagement portion connected to the sliding portion. The second engagement portion may be configured to engage with the long ruler side engagement portion to fix the position of the sub-base relative to the sliding portion in the front-rear direction when the portable processing machine is used with the long ruler. According to this embodiment, the positional relationship in the front-to-rear direction between the portable processing machine and the sliding portion of the long ruler can be easily fixed.

[0015] A portable circular saw according to one non-limiting embodiment of the present disclosure (hereinafter simply referred to as "circular saw 1") and a long ruler 5 used together with the circular saw 1 will be described below with reference to FIGS. 1 to 22.

[0016] First, we will explain the circular saw 1. As shown in Fig. 1, the circular saw 1 includes a base 3 having an abutment surface 32 for abutting against a workpiece W (see Fig. 5), and a processing machine body 2 to which a cutting tool 101 is attached. When the circular saw 1 is used together with a long ruler 5, the abutment surface 32 abuts against the upper surface of the long ruler 5, as shown in Fig. 8.

[0017] For the sake of convenience, the direction parallel to the processing direction of the circular saw 1 is defined as the front-rear direction of the circular saw 1, the destination to which the workpiece W is transferred relative to the circular saw 1 is defined as the rear side of the circular saw 1, and the opposite side is defined as the front side of the circular saw 1. In this embodiment, the rear side is the side where the user is when holding the circular saw 1 and processing the workpiece W, and the opposite side is the front side of the circular saw 1. In addition, the side where the workpiece W is placed relative to the base 3 is defined as the lower side of the circular saw 1, and the opposite side is defined as the upper side of the circular saw 1. The upper side is the side where the processing machine body 2 is located. Furthermore, the direction perpendicular to the front-rear direction and the up-down direction is defined as the left-right direction of the circular saw 1. In the left-right direction, the right side when viewed from the rear side to the front side is defined as the right side of the circular saw 1, and the opposite side is defined as the left side of the circular saw 1.

[0018] The processing machine body 2 is basically disposed on the upper side of the base 3. As shown in FIG. 1, the processing machine body 2 includes a main body housing 21, a handle (grip) 26 connected to the main body housing 21, and a cover 27. The main body housing 21 accommodates an electric DC motor 22 (see FIG. 9), a reduction gear, and an output shaft. The rotation axis AX1 of the motor 22 extends in the left-right direction. The motor 22 rotates the cutting tool 101 around an axis AX2 (see FIG. 1) extending in the left-right direction via the reduction gear and the output shaft. The output shaft extends to the inside of the cover 27, and the tip of the output shaft functions as a mounting part 25 configured to detachably mount the cutting tool 101. In this embodiment, the mounting part 25 is provided on the right side of the base 3. In this embodiment, a circular saw blade called a tip saw is used as the cutting tool 101. The handle 26 is provided at the rear of the main body housing 21. The handle 26 is provided with a trigger 261 for starting and stopping the motor 22 .

[0019] The processing machine body 2 further includes a battery mounting section 24 for detachably mounting the battery 102. The battery mounting section 24 is provided at the rear of the body housing 21. The battery mounting section 24 includes a pair of guide rails, a hook engaging section, and a terminal, and has a well-known configuration for detachably mounting the battery 102. Power of the battery 102 mounted in the battery mounting section 24 is supplied to the motor 22 in response to manual operation of a trigger 261 by a user.

[0020] 1 and 2, the cover 27 is configured to cover approximately the upper half of the cutting tool 101. A movable cover 28 is connected to the cover 27. The movable cover 28 covers the lower half of the cutting tool 101 that protrudes downward from the opening 38 of the base 3. When the circular saw 1 is moved with the front end of the movable cover 28 abutting against the workpiece W, for example, the movable cover 28 is opened.

[0021] 1, 5 and 6, the base 3 is formed in a generally rectangular shape as a whole. The longitudinal direction of the base 3 is the front-rear direction, and the lateral direction of the base 3 is the left-right direction. The base 3 includes a main base 30 and a sub-base 40. The sub-base 40 is configured to be selectively attached to the right or left side of the main base 30.

[0022] First, the main base 30 will be described in detail. As shown in Figs. 1, 2, 5 and 6, the main base 30 constitutes the majority of the base 3. The main base 30 is formed in a substantially flat plate shape and includes a base plate 31 having a contact surface 32 for contacting the workpiece W. The base plate 31 supports the processing machine body 2 on the upper side. As shown in Fig. 1, the cutting tool 101 attached to the attachment portion 25 is located near the right end of the main base 30.

[0023] As shown in Figs. 7 and 9, the main base 30 includes a right attachment section 33R to which the sub-base 40 can be attached from the right side, and a left attachment section 33L to which the sub-base 40 can be attached from the left side. The right attachment section 33R is provided at the front end and the rear end of the main base 30. The right attachment section 33R includes a first insertion opening 34 and a rail receiving section 36. As shown in Fig. 2, the first insertion opening 34 is an opening provided at the right end of the board 31. The rail receiving section 36 is formed in a groove shape extending in the left-right direction of the board 31. The rail receiving section 36 is connected to the first insertion opening 34. Although details will be described later, a plate-shaped rail 49 extending in the left-right direction is provided at the front end and the rear end of the sub-base 40 (see Fig. 2). The rail 49 can be inserted into the rail receiving section 36 through the first insertion opening 34 on the right side of the main base 30.

[0024] The left mounting portion 33L is provided at the front end and the rear end of the main base 30, similarly to the right mounting portion 33R. The left mounting portion 33L includes a second insertion opening 35 and a rail receiving portion 36. The second insertion opening 35 is an opening provided at the left end of the substrate 31. The rail receiving portion 36 is connected to the second insertion opening 35. In this embodiment, the rail receiving portion 36 provided at the front end of the substrate 31 connects (connects) the first insertion opening 34 and the second insertion opening 35 at the front end. In addition, the rail receiving portion 36 provided at the rear end of the substrate 31 connects (connects) the first insertion opening 34 and the second insertion opening 35 at the rear end 92. Therefore, the rail 49 of the sub-base 40 can be inserted into the rail receiving portion 36 through the second insertion opening 35 on the left side of the main base 30. The inserted rail 49 is fixed to the substrate 31 by a screw 39 (see FIG. 2). In this manner, in this embodiment, the rail receiving portion 36 of the right mounting portion 33R is also used as the rail receiving portion 36 of the left mounting portion 33L. Therefore, the circular saw 1 of this embodiment has an advantage that the structure of the base 3 is not complicated and the overall size of the base 3 is not increased in order to mount the sub-base 40 to the main base 30.

[0025] Next, the sub-base 40 will be described in detail. The sub-base 40 is selectively attached to the right side (right mounting part 33R) of the main base 30 as shown in Fig. 6 and Fig. 7(A) or to the left side (left mounting part 33L) of the main base 30 as shown in Fig. 6 and Fig. 7(B), and is disposed on the right or left side of the main base 30. As shown in Fig. 1, the length of the sub-base 40 in the front-rear direction (longitudinal direction) is equal to the length of the main base 30 in the front-rear direction. The length of the sub-base 40 in the left-right direction (short side direction) attached to the main base 30 is about one-fifth of the length of the main base 30 in the left-right direction.

[0026] FIG. 2 shows the sub-base 40 removed from the right-side mounting portion 33R of the main base 30. FIG. 3 shows the sub-base 40 in FIG. 2 viewed from above. FIG. 4 shows the sub-base 40 rotated 180° around the imaginary axis AX3 shown in FIG. 3. The sub-base 40 includes a groove 41 extending in the front-rear direction and a pair of rails 49. The groove 41 is defined by a bottom wall 42 extending in the front-rear direction and a side wall 43 connected to the bottom wall 42. As shown in FIG. 2, in this embodiment, the groove 41 is formed in a substantially L-shape having one side wall 43. In other embodiments, the groove 41 may be formed in a concave shape having side walls 43 on the left and right sides of the bottom wall 42. The outer surface (side surface 431) of the side wall 43 defines the left-right end of the sub-base 40. The rail 49 extends in a direction (left-right direction) intersecting the extension direction of the groove 41. In this embodiment, the rail 49 is connected to a first end 401 and a second end 402 in the longitudinal direction of the groove 41 and extends away from the side wall 43 .

[0027] As shown in FIG. 3 and FIG. 4, a recess 44 recessed toward the side wall 43 is provided between the first end 401 and the second end 402 of the bottom wall 42. In addition, as shown in FIG. 1 and FIG. 2, a recess 37 recessed toward the right side is provided at the right end of the substrate 31 of the main base 30 between the first insertion opening 34 on the front side and the first insertion opening 34 on the rear side. As shown in FIG. 1, when the sub-base 40 is attached to the right attachment portion 33R of the main base 30, an opening 38 of the base 3 is formed by the recess 37 of the main base 30 and the recess 44 of the sub-base 40. The opening 38 is also a through hole that penetrates the base 3 in the vertical direction. As shown in FIG. 2, when the sub-base 40 is removed from the right side of the main base 30, the cutting tool 101 is exposed to the right side of the main base 30. In this manner, in the circular saw 1 of this embodiment, since the sub-base 40 has the recess 44, the cutting tool 101 and a part of the cover 27 that protects the cutting tool 101 can be disposed between the recess 44 of the sub-base 40 and the main base 30. Therefore, compared to a configuration in which the sub-base 40 does not have the recess 44, the length of the base 3 in the left-right direction can be shortened.

[0028] As shown in FIG. 1, FIG. 5, and FIG. 7(A), when the sub-base 40 is attached to the right side of the main base 30 with the bottom wall 42 facing downward, the bottom surface 421 of the bottom wall 42 and the contact surface 32 of the main base 30 are at the same position in the up-down direction. In other words, the bottom surface 421 and the contact surface 32 are in the same plane. Therefore, the user can perform a processing operation by bringing the bottom surface 421 and the contact surface 32 into contact with the workpiece W. In this way, when the sub-base 40 is attached to the right side of the main base 30 with the bottom wall 42 of the sub-base 40 facing downward (with the groove portion 41 facing upward), the contact surface of the workpiece W on the base 3 becomes large. Therefore, the circular saw 1 of this embodiment has the advantage that the processing operation can be stabilized when the base 3 is directly contacted with the workpiece W to perform the processing operation.

[0029] As shown in FIG. 6 and FIG. 7(B), when the sub-base 40 is attached to the left side of the main base 30 with the bottom wall 42 facing upward, the groove 41 faces downward. Therefore, a groove extending in the front-rear direction and recessed from the bottom to the top is formed at the left end of the base 3. This groove (groove 41) is configured to be able to fit into the protrusion 54 provided on the long ruler 5. The circular saw 1 and the long ruler 5 of this embodiment are configured such that when the groove 41 fits into the protrusion 54, the cutting tool 101 attached to the circular saw 1 is exposed to the right side of the long ruler 5. Therefore, the user can perform processing work by moving the circular saw 1 forward along the longitudinal direction of the long ruler 5. Therefore, with the circular saw 1 of this embodiment, it is possible to select a processing work in which the main base 30 and the sub-base 40 are directly abutted against the workpiece W, and a processing work in which the long ruler 5 is abutted against the workpiece W, and both processing works can be performed stably. That is, according to this embodiment, it is possible to provide a circular saw 1 that is excellent in stability and convenience. Hereinafter, a mode of using the circular saw 1 together with the long ruler 5 will be specifically described with reference to Figs.

[0030] First, a description will be given of the long ruler 5. As shown in Figures 8 to 10, the long ruler 5 has an overall long shape.

[0031] The ruler 5 has a plate-shaped base 50 extending in the longitudinal direction. As shown in Figs. 8 and 9, the base 50 has an abutment surface 55 (lower surface 55) for abutting against the workpiece W. The base 50 is provided with a protrusion 54 extending in the longitudinal direction. As described above, when the sub-base 40 is attached to the left side of the main base 30 with the groove 41 facing downward, the groove 41 can fit into the protrusion 54. At this time, the longitudinal direction of the ruler 5 coincides with the front-rear direction of the circular saw 1, and the lateral direction of the ruler 5 coincides with the left-right direction of the circular saw 1.

[0032] The base 50 is further provided with a first groove 51, a second groove 52, and a third groove 53 extending in the front-rear direction. The first groove 51, the second groove 52, the third groove 53, and the ridge 54 are arranged in this order from left to right. The first groove 51, the second groove 52, and the third groove 53 are grooves that open upward (recessed from the upper side to the lower side). The third groove 53 is a portion between the left wall (left side surface) of the ridge 54 and the right wall (right side surface) of the second groove 52. As shown in FIG. 11, the side wall 43 of the sub-base 40 is arranged in the third groove 53.

[0033] As shown in Figs. 9 and 10, the long ruler 5 further includes a slider 6, a stopper 7, a rotating member 8, and a connecting member 9. The slider 6 is provided on a base 50 and is configured to be pushed forward by the circular saw 1 as the circular saw 1 advances. The slider 6 is also configured to move backward (rearward) while pushing the circular saw 1 when the slider 6 moves backward. The stopper 7 is fixed to the base 50 behind the slider 6. The stopper 7 is configured to restrict the circular saw 1 from moving backward. The connecting member 9 is configured to return the circular saw 1 that has moved (forward) to the rear via the slider 6. The connecting member 9 is an elastic member having a front end 91 and a rear end 92. The front end 91 of the connecting member 9 is fixed to the slider 6, and the rear end 92 is fixed to the stopper 7. The connecting member 9 is configured to be extended from a predetermined initial state when the slider 6 is moved forward together with the circular saw 1, and a force (biasing force, load) that returns the connecting member 9 to the initial state acts on the connecting member 9. This force causes the connecting member 9 to move the slider 6 rearward. The rotating member 8 is configured to be connected to the slider 6 and engage the circular saw 1 and the slider 6. The slider 6, the stopper 7, the rotating member 8, and the connecting member 9 will be specifically described below.

[0034] As shown in FIG. 11 and FIG. 12, the slider 6 has a first portion 61 disposed in the second groove portion 52, and a second portion 62 and a third portion 63 connected to the first portion 61. As shown in FIG. 11 to FIG. 14, the first portion 61 is formed in a generally columnar shape extending in the front-rear direction in the second groove portion 52. The first portion 61 is slidable in the front-rear direction along the second groove portion 52. The second portion 62 is connected to a front portion of the first portion 61 and extends from the first portion 61 to the upper side of the first groove portion 51 to the left. The second portion 62 is formed in a plate shape perpendicular to the up-down direction. As shown in FIG. 15, a pin 66 is provided on the lower side of the second portion 62, protruding downward from the second portion 62 (i.e., into the first groove portion 51). A front end portion 91 of the connecting member 9 is rotatably held (fixed) around the pin 66. The second portion 62 functions as a fixing portion for fixing the front end portion 91 of the connecting member 9.

[0035] The third portion 63 is connected to the first portion 61 and is formed so as to protrude from the first portion 61 toward the protrusion 54. The third portion 63 also serves as an engagement portion that engages with the front engagement portion 46 provided on the sub-base 40 in the third groove portion 53.

[0036] Here, the front engagement portion 46 provided on the sub-base 40 will be described. As shown in FIG. 4, the front engagement portion 46 is provided on the first end 401 of the sub-base 40. The front engagement portion 46 is a portion where the front end of the side wall 43 is recessed toward the rail 49 side (the right side in FIG. 4). As shown in FIG. 11 and FIG. 13, the front engagement portion 46 has a rear end surface 462 that is perpendicular to the front-rear direction and defines the rear end of the front engagement portion 46, and a side surface 463 that is perpendicular to the left-right direction. The front engagement portion 46 is open to the front side and the slider 6 side (the side of the third portion 63). The front engagement portion 46 is formed by cutting the front end of the side wall 43. The rear end surface 462 faces a rear end surface 632 that defines the rear end of the third portion 63 in the front-rear direction. With this configuration, when the circular saw 1 is moved forward, the rear end surface 462 of the front engagement portion 46 of the sub-base 40 comes into contact with the rear end surface 632 of the third portion 63 of the slider 6, pushing the third portion 63 forward. As a result, the slider 6 moves forward as the sub-base 40 (circular saw 1) moves forward.

[0037] The sub-base 40 further includes a rear engagement portion 47. The rear engagement portion 47 is provided on the rear side of the front engagement portion 46 and spaced apart from the front engagement portion 46. The rear engagement portion 47 is a portion where the side wall 43 is recessed toward the rail 49 side. The rear engagement portion 47 includes a front end surface 471 perpendicular to the front-rear direction, and an inclined surface 472 connected to the front end surface 471 and inclined so as to approach the side surface 431 toward the rear. The rear engagement portion 47 is configured to engage with an engagement portion 83 of the rotating member 8 provided on the slider 6. The rear engagement portion 47 is also configured to engage with the engagement portion 83 to fix the positional relationship between the sub-base 40 and the slider 6 in the front-rear direction.

[0038] The rotating member 8 will now be described. As shown in Fig. 11, the rotating member 8 is connected to the slider 6 so as to be rotatable around a rotation axis AX4 perpendicular to the base 50 (i.e., extending in the up-down direction). The rotating member 8 is also configured to engage with the sub-base 40. The rotating member 8 includes a plate-shaped portion 81 that is perpendicular to the up-down direction and constitutes the majority of the rotating member 8, and a connecting portion 84, an operating portion 82, and an engaging portion 83 that are connected to the plate-shaped portion 81.

[0039] 15, the connecting portion 84 is a substantially cylindrical portion provided around the cylindrical portion 64 protruding upward from near the third portion 63 of the slider 6. The connecting portion 84 is connected to the cylindrical portion 64 by a pin 89 extending in the vertical direction. The pin 89 fixes the connecting portion 84 to the cylindrical portion 64 so as to regulate the vertical movement of the connecting portion 84 relative to the cylindrical portion 64 and to allow the connecting portion 84 (rotating member 8) to turn (rotate) around the cylindrical portion 64. A rotation axis AX4 of the connecting portion 84 (rotating member 8) is perpendicular to the base 50.

[0040] The operating portion 82 is a portion for allowing a user to rotate the rotating member 8 by manual operation. As shown in Figs. 11 to 14, in this embodiment, the operating portion 82 is formed so as to protrude upward from the front end of the plate-shaped portion 81. The engaging portion 83 is configured to engage with the rear engaging portion 47 of the sub-base 40. In this embodiment, the engaging portion 83 is formed in a hook shape protruding toward the sub-base 40 side at the rear portion of the plate-shaped portion 81. The engaging portion 83 includes a front end surface 831 that is perpendicular to the front-rear direction and defines the front end of the engaging portion 83, and an inclined surface 832. As shown in Figs. 11 to 13, the front end surface 831 faces the front end surface 471 of the rear engaging portion 47 of the sub-base 40. The inclined surface 832 is connected to the front end surface 831 and inclined to the left so as to move away from the sub-base 40 as it moves toward the rear side. The inclined surface 832 inclines so as to follow the inclined surface 472 of the rear engaging portion 47.

[0041] As shown in Figs. 11 to 14, the connecting portion 84 (rotating member 8) can rotate in direction R1 around the rotation axis AX4 and in direction R2 opposite to direction R1. The direction R1 is a direction that moves the rotating member 8 closer to the sub-base 40, and the direction R2 is a direction that moves the rotating member 8 away from the sub-base 40. As shown in Fig. 15, a torsion spring 85 is provided around the connecting portion 84. The torsion spring 85 biases the rotating member 8 in direction R1 via the connecting portion 84. In this embodiment, when the user is not operating the operation portion 82, the front end surface 831 of the engagement portion 83 is approximately perpendicular to the front-rear direction due to the biasing force of the torsion spring 85 (see Figs. 11 to 13).

[0042] Next, the stopper 7 will be described. The stopper 7 is fixed to the base 50 on the rear side of the slider 6. The stopper 7 includes a slider abutment portion 71 and a fixing portion 72. The slider abutment portion 71 is configured to abut against the first portion 61 to restrict the rearward movement of the first portion 61. In this embodiment, the slider abutment portion 71 is disposed in the first groove portion 51. The slider abutment portion 71 is formed in a substantially columnar shape extending in the front-rear direction. As shown in FIG. 14 and FIG. 18, a front end portion (front end surface) 711 of the slider abutment portion 71 is provided immediately behind a rear end portion (rear end surface) 612 of the first portion 61. A rubber pin 713 is provided at the front end portion 711 of the slider abutment portion 71. The rubber pin 713 absorbs the impact when the first portion 61 of the slider 6 abuts against the slider abutment portion 71 of the stopper 7.

[0043] The fixing portion 72 is configured to fix the rear end portion 92 of the connecting member 9. The fixing portion 72 is connected to the slider abutment portion 71. In this embodiment, as shown in Figs. 11 and 12, the fixing portion 72 is formed in a plate shape extending from the slider abutment portion 71 to the left side up to the upper side of the first groove portion 51. The fixing portion 72 has a protruding portion 721 protruding downward from the plate-like portion. The rear end portion 92 of the connecting member 9 is fixed to the protruding portion 721 via a rivet 723 and a hook 722.

[0044] The connecting member 9 will be described. As described above, the front end 91 of the connecting member 9 is fixed to the second part 62 of the slider 6, and the rear end 92 of the connecting member 9 is fixed to the fixing part 72 of the stopper 7. The connecting member 9 is disposed in the first groove part 51. The connecting member 9 biases the slider 6 backward. When no force is applied to the slider 6 to move the slider 6 forward, the rear end 612 of the first part 61 of the slider 6 abuts against the front end 711 of the slider abutment part 71 due to the biasing force of the connecting member 9. The state of the connecting member 9 when the slider 6 and the slider abutment part 71 abut against each other is also called the initial state. In addition, the position of the long ruler 5 and the circular saw 1 installed on the long ruler 5 when the slider 6 and the stopper 7 abut against each other is also called the processing start position. When the slider 6 is moved forward, the front end 91 of the connecting member 9 is also moved forward, and the connecting member 9 is extended from the initial state shown in FIG.

[0045] In this embodiment, the connecting member 9 is configured by a spring having a nonlinear characteristic in which the increase in elastic force due to extension is nonlinear. A spring having a nonlinear characteristic has a nonlinear relationship between load and deflection. In this embodiment, a constant load spring is used as the connecting member 9. A constant load spring has a nonlinear characteristic up to a certain load, or a linear characteristic up to a certain load, and has a characteristic that the load becomes constant even if the deflection increases after the certain load. As described above, the front end 91 of the connecting member 9 is wound around the pin 66, and when the second part 62 (slider 6) is moved forward, the front end 91 is rotated around the axis AX5 (see FIG. 15) of the pin 66. As a result, as shown in FIG. 21, the band-shaped spring main body 93 is pulled out. The connecting member 9 is formed so that, for example, when the front end 91 is rotated halfway around the pin 66, the maximum load is reached, and thereafter the load becomes constant regardless of the pull-out length (stroke).

[0046] Hereinafter, the manner in which the long ruler 5 is used together with the circular saw 1 and the effects provided by the circular saw 1 and the long ruler 5 will be described.

[0047] When the long ruler 5 is used together with the circular saw 1, the user first places the circular saw 1 on the long ruler 5 so that the rear engagement portion 47 of the sub-base 40 engages with the engagement portion 83 of the rotating member 8. The positional relationship between the sub-base 40 and the long ruler 5 is adjusted so that the groove portion 41 of the sub-base 40 engages with the protrusion 54 on the base portion 50 of the long ruler 5 when the rear engagement portion 47 engages with the engagement portion 83 of the rotating member 8. As described above, the engagement portion 83 has an inclined surface 832 that is inclined to follow the inclined surface 472 of the rear engagement portion 47. Therefore, for example, as shown in Figure 14, by simply moving the front engagement portion 46 (rear end surface 462) of the sub-base 40 forward while it is in contact with the third part 63 (rear end surface 632) of the slider 6, the sub-base 40 can be engaged with the engagement portion 83 provided on the slider 6 by the tilting action.

[0048] As shown by the arrow D1 in FIG. 19 to FIG. 21, when the user grips the handle 26 and moves the circular saw 1 forward from the processing start position, the rear end surface 462 of the front engagement portion 46 abuts against the rear end surface 632 of the third portion 63, and the third portion 63 (slider 6) is pushed by the sub-base 40 and moves forward. As a result, the front end portion 91 of the connecting member 9 fixed to the second portion 62 of the slider 6 moves forward. The connecting member 9 extends between the second portion 62 of the slider 6 and the fixed portion 72 of the stopper 7. As described above, the connecting member 9 has a nonlinear characteristic. Therefore, even if the forward movement amount (distance) of the circular saw 1 increases, the pullback load does not increase linearly. Therefore, according to the long ruler 5 of this embodiment, the force required to move the circular saw 1 can be suppressed from increasing linearly. As a result, the operability of the circular saw 1 can be improved when the circular saw 1 is used together with the long ruler 5.

[0049] In addition, in this embodiment, a constant load spring is used as the connecting member 9. Therefore, after the front end 91 of the connecting member 9 is rotated, for example, half a turn around the pin 66 and the connecting member 9 reaches its maximum load, the biasing force (return force toward the rear, load) of the connecting member 9 is constant. In other words, the return load that returns the circular saw 1 to the processing start position is constant. Therefore, according to the long ruler 5 of this embodiment, the force required to move the circular saw 1 forward can be made constant. Therefore, when the circular saw 1 is used together with the long ruler 5, the operability of the circular saw 1 can be further improved.

[0050] When the user stops pressing the trigger 261 at the end of processing, etc., and moves the circular saw 1 together with the long ruler 5 upward relative to the workpiece W, the connecting member 9 returns to the initial state due to the biasing force. In addition, the slider 6 to which the front end 91 of the connecting member 9 is fixed moves backward. At this time, the rear end surface 632 of the third part 63 abuts against the rear end surface 462 of the front engagement part 46, and the sub-base 40 is pushed by the third part 63 (slider 6) and moves relatively backward in the long ruler 5. In this embodiment, the slider 6 moves backward to the processing start position, that is, until the first part 61 (rear end 612) of the slider 6 abuts against the slider abutment part 71 (front end 711) of the stopper 7. Therefore, according to this embodiment, the circular saw 1 can be moved backward simply by releasing the force applied by the user to the circular saw 1.

[0051] When the slider 6 abuts against the stopper 7, a rearward inertial force acts on the sub-base 40 (circular saw 1), which has been pushed backward by the slider 6. In this embodiment, the sub-base 40 engages with the engagement portion 83 of the rotating member 8 at the rear engagement portion 47. Therefore, the rearward movement of the sub-base 40 is restricted by the front end surface 471 of the rear engagement portion 47 abutting against the front end surface 831 of the engagement portion 83. As a result, the sub-base 40 (circular saw 1) returns to the processing start position. In this way, with the circular saw 1 of this embodiment, the position of the circular saw 1 relative to the long ruler 5 can be easily returned to the processing start position.

[0052] When removing the circular saw 1 that has returned to the processing start position from the long ruler 5, the user can release the engagement between the rear engagement part 47 and the engagement part 83 by pushing the operating part 82 in the direction R2 against the biasing force of the torsion spring 85, as shown in FIG. 22, for example. As described above, the engagement part 83 of this embodiment has a front end surface 831 that faces the rear end surface 462 of the rear engagement part 47, and an inclined surface 832 that is connected to the front end surface 831 and follows the inclined surface 472 of the rear engagement part 47. Therefore, when the user presses the operating part 82 in the direction R2, the engagement part 83 moves smoothly in the direction R2 together with the operating part 82 without being restricted by the rear engagement part 47. In this way, with the circular saw 1 and the long ruler 5 of this embodiment, the engagement between the circular saw 1 and the long ruler 5 can be easily released.

[0053] Furthermore, in this embodiment, the connecting member 9 is disposed in the first groove 51 provided in the base 50, so that the connecting member 9 can be protected from external impacts. Also, the belt-shaped connecting member 9 is wound around the pin 66 in the first groove 51, so that the connecting member 9 can be housed compactly in the first groove 51, and this allows the long ruler 5 to be configured compactly in the up-down direction.

[0054] The slider 6 also includes a first portion 61 disposed in the second groove portion 52 extending in the front-rear direction. Therefore, the slider 6 can be positioned in the left-right direction with respect to the base portion 50, and can be moved (guided) in the front-rear direction. The second portion 62 of the slider 6 also includes a second portion 62 connected to the first portion 61 and extending toward the first groove portion 51. The second portion 62 is configured to fix the front end portion 91 of the connecting member 9 on the upper side of the connecting member 9 disposed in the first groove portion 51. Therefore, while the slider 6 is smoothly slidable (moved in the front-rear direction), the connecting member 9 can be extended in the first groove portion 51 and returned to its original state in accordance with the sliding of the slider 6.

[0055] The slider 6 also includes a third portion 63 that engages with the front engagement portion 46 of the sub-base 40. This allows the slider 6 to function as a fixing portion that fixes the front end portion 91 of the connecting member 9 and to engage with the circular saw 1.

[0056] <Correspondence> The correspondence between each component of the above embodiment and each component of the technology of the present disclosure is shown below. However, each component of the embodiment is merely an example and does not limit each component of the technology of the present disclosure. The circular saw 1 is an example of a "portable processing machine." The long ruler 5 is an example of a "long ruler." The ridge 54 is an example of a "ridge". The workpiece W is an example of a "workpiece." The contact surface 32 is an example of the "contact surface." The main base 30 is an example of a "main base." The processing machine body 2 is an example of a "processing machine body." The right side and the left side are examples of the "first side" and the "second side", respectively. The cutting tool 101 is an example of a "cutting tool." Sub-base 40 is an example of a "sub-base." The groove 41 is an example of a "groove". The bottom wall 42 and the side wall 43 are examples of the "bottom wall" and the "side wall", respectively. The recess 44 is an example of a "recess". Rail 49 is an example of a "rail." The first insertion opening 34, the second insertion opening 35, and the rail receiving portion 36 are examples of the "first insertion opening", the "second insertion opening", and the "rail receiving portion", respectively. First end 401 is a part of the "first end." The front engagement portion 46 is an example of a "notch" or a "first engagement portion." The slider 6 and the third portion 63 are an example of a "sliding portion." The handle 26 is an example of a "grip portion." The fixed portion 72 and the connecting member 9 are examples of the "fixed portion" and the "connecting member". Second end 402 is an example of a "second end." The rear engagement portion 47 is an example of a "second engagement portion." The engaging portion 83 of the rotating member 8 is an example of a "long ruler side engaging portion."

[0057] <Other embodiments> In the circular saw 1 of the above embodiment, the sub-base 40 does not have to be attached to the main base 30 in order to reduce the weight of the circular saw 1. The circular saw 1 of the above embodiment can selectively perform the following machining operations: (i) attaching the sub-base 40 to the right attachment part 33R with the groove 41 of the sub-base 40 facing upward, and abutting the bottom surface 421 of the sub-base 40 and the abutment surface 32 of the main base 30 against the workpiece W; (ii) attaching the sub-base 40 to the left attachment part 33L with the groove 41 of the sub-base 40 facing downward, fitting the protrusion 54 of the long ruler 5 into the groove 41, and abutting the abutment surface 55 of the long ruler 5 against the workpiece W; and (iii) removing the sub-base 40 from the main base 30 and abutting only the abutment surface 32 of the main base 30 against the workpiece W.

[0058] The circular saw 1 in the above embodiment is right-handed, and the mounting portion 25 to which the cutting tool 101 is attached is disposed near the right end of the main base 30. The above embodiment may also be applied to a left-handed circular saw in which the mounting portion 25 is disposed near the left end of the main base 30. In this case, the configurations of the circular saw 1 and the long ruler 5 may be reversed left to right.

[0059] The shapes of the sub-base 40 and the main base 30 and the manner in which the sub-base 40 and the main base 30 are attached may be changed as appropriate, so long as the sub-base 40 is configured so as to be selectively attached to a first side of the main base 30 on which the cutting tool 101 is attached, and a second side opposite the first side.

[0060] The circular saw 1 of the above embodiment may be driven by power supplied from an external AC power source via a power cord, instead of the battery 102.

[0061] In the above embodiment, the circular saw 1 is exemplified as a portable processing machine, but the technology disclosed herein may be applied to a portable processing machine capable of performing long cuts (for example, a jigsaw or a router).

[0062] In the above embodiment, a constant force spring is used as the connecting member 9 of the long ruler 5. However, a spiral spring having non-linear characteristics may be used as the connecting member 9.

[0063] In the above embodiment, the stopper 7 of the long ruler 5 may be fixed to the base 50 so as to abut against the rear end of the base 3, instead of the slider 6. For example, the stopper 7 may be configured to have an extension extending above the protrusion 54, and the extension abuts against the second end 402 of the sub-base 40 to restrict the backward movement of the circular saw 1. This configuration also allows the circular saw 1 to be easily returned to the processing start position. Note that, as in the above embodiment, in a configuration in which the slider 6 engages with the front engagement portion 46 at the first end 401 of the sub-base 40 and the stopper 7 restricts the backward movement of the slider 6, the slider 6 and the stopper 7 can be arranged relatively close to each other in the front-rear direction. Therefore, there is an advantage in that the front-rear length of the connecting member 9 in the initial state can be configured to be short.

[0064] In the above embodiment, the front end 91 of the connecting member 9 does not have to be fixed to the second portion 62 of the slider 6, and may be configured to be fixed to the front portion of the circular saw 1. In this case, for example, a mechanism capable of fixing the front end 91 may be provided to the left front portion of the base 3, and the left front end of the base 3 may be configured to have the function of the slider 6. Also, in this case, the stopper 7 may be fixed to the base 50 so as to abut against the rear end of the base 3.

[0065] The present disclosure is not limited to the above-mentioned embodiment, and can be realized in various configurations without departing from the spirit of the present disclosure. For example, the technical features in the embodiments corresponding to the technical features in each form described in the Summary of the Invention column can be appropriately replaced or combined to solve some or all of the above-mentioned problems or to achieve some or all of the above-mentioned effects. Furthermore, if the technical feature is not described as essential in this specification, it can be appropriately deleted. Furthermore, the present disclosure can also be applied to the following aspects. [Aspect 1] A long ruler for use with a portable processing machine comprising a base and a processing machine body having a gripping portion for a user to grip, the processing machine body being disposed above the base, A base portion extending in a longitudinal direction, having a lower surface for contacting a workpiece, and configured so that the portable processing machine can be disposed on an upper side thereof; a first stationary portion configured to move with movement of the portable processing machine along the longitudinal direction; a second fixing part fixed to the base, the second fixing part being disposed on the rear side of the first fixing part when the side along which the portable processing machine moves is defined as the front side and the side opposite to the front side is defined as the rear side in a front-rear direction along the longitudinal direction; a connecting member having a front end portion fixed to the first fixed portion and a rear end portion fixed to the second fixed portion, and when the connecting member is stretched from a predetermined initial state as the first fixed portion moves to the front side, a load toward the rear side acts on the connecting member so as to return to the initial state, The connecting member is an elastic member having nonlinear characteristics in which the increase in elastic force due to stretching is nonlinear. [Aspect 2] The connecting member is a spiral spring. [Aspect 3] The connecting member is a constant force spring. [Aspect 4] The second fixing portion is configured to abut against the portable processing machine or the first fixing portion to restrict movement of the portable processing machine toward the rear side. [Aspect 5] The long ruler further includes an engagement portion connected to the first fixing portion and configured to engage with the portable processing machine. [Aspect 6] The base portion has a first groove portion extending in the front-rear direction and open to the upper side, The connecting member is disposed in the first groove. [Aspect 7] When the portable processing machine is placed on the upper side of the long ruler in the left-right direction which is the short side direction of the long ruler, the side on which the cutting tool of the portable processing machine is attached is defined as a first side, and the side opposite to the first side is defined as a second side, the base portion includes a second groove portion provided on the first side with respect to the first groove portion, the second groove portion extending in the front-rear direction and open to the upper side, The first fixing portion has a first part that is arranged in the second groove portion and configured to slide in the fore-and-aft direction, and a second part that is connected to the first part and extends from the first part toward the second side to the upper side of the first groove portion and is configured to be able to fix a front end of the connecting member to the lower side. [Aspect 8] The base portion has a protrusion extending in the front-rear direction and protruding upward, the protrusion being provided on the first side with respect to the second groove portion. [Aspect 9] the first fixing portion includes a third portion connected to the first portion and protruding beyond the second groove portion toward the protrusion; The third part is pushed by the base and moved toward the front side as the portable processing machine is moved toward the front side, and when the movement of the portable processing machine toward the front side is released, the third part is configured to push the base toward the rear side as the connecting member returns to its initial state and the third part is moved toward the rear side. [Aspect 10] The front end of the connecting member is fixed to a pin that protrudes downward from the second portion toward the first groove, and is wound around the pin. [Aspect 11] The engagement portion is When the portable processing machine is disposed on the upper side of the long ruler, the long ruler is configured to protrude toward the portable processing machine in the left-right direction, which is the short side direction of the long ruler, In the left-right direction, when the side on which a cutting tool is attached in the portable processing machine is defined as a first side and the side opposite the first side is defined as a second side, the machine has an inclined portion that inclines from the first side to the second side as it proceeds toward the rear side. [Explanation of symbols]

[0066] 1: circular saw, 2: processing machine body, 21: main body housing, 22: motor, 24: battery mounting section, 25: mounting section, 26: handle, 261: trigger, 27: cover, 28: movable cover, 3: base, 30: main base, 31: circuit board, 32: contact surface, 33L: left mounting section, 33R: right mounting section, 34: first insertion port, 35: second insertion port, 36: rail receiving section , 37: recess, 38: opening, 39: screw, 40: sub-base, 401: first end, 402: second end, 41: groove, 42: bottom wall, 421: bottom surface, 43: side wall, 431: side surface, 44: recess, 46: front engagement portion, 462: rear end surface, 463: side surface, 47: rear engagement portion, 471: front end surface, 472: inclined surface, 49: rail, 5: long ruler, 50: base, 51: first groove 52: second groove, 53: third groove, 54: protrusion, 55: contact surface, 6: slider, 61: first portion, 612: rear end, 62: second portion, 63: third portion, 632: rear end surface, 64: cylindrical portion, 66: pin, 7: stopper, 71: slider contact portion, 711: front end, 713: rubber pin, 72: fixing portion, 721: protrusion, 722: hook, 723: rivet, 8: rotating member, 81: plate-shaped portion, 8 2: operation part, 83: engagement part, 831: front end surface, 832: inclined surface, 84: connection part, 85: torsion spring, 89: pin, 9: connection member, 91: front end, 92: rear end, 93: spring body, 101: cutting tool, 102: battery, AX1: motor rotation shaft, AX2: cutting tool rotation shaft, AX3: virtual axis, AX4: rotation shaft of rotating member, AX5: shaft, D1: arrow, R1, R2: rotation direction of rotating member, W: work

Claims

1. A portable processing machine that can be used with a long ruler having a ridge extending in the longitudinal direction, a main base having a contact surface for contacting the workpiece or the long ruler; a processing machine body supported by the main base on an upper side opposite to a lower side on which the workpiece is placed with respect to the abutment surface, the processing machine body being configured such that a cutting tool is attached to an edge portion on a first side in the left-right direction when a direction along a processing progress direction of the portable processing machine is defined as a front-rear direction and a direction intersecting the front-rear direction is defined as a left-right direction; A portable processing machine comprising: a sub-base having a groove portion extending in the front-to-rear direction and configured to slidably fit onto the protrusion of the long ruler, the sub-base being removably attached to the main base selectively on the first side of the main base and on a second side opposite the first side of the main base.

2. The portable processing machine according to claim 1, The groove portion includes a bottom wall and a side wall connected to the bottom wall, The sub-base is when the main base is attached to the first side of the main base with the bottom wall as the lower side, a lower surface of the bottom wall and the abutment surface are in the same plane; The portable processing machine is configured so that when the portable processing machine is attached to the second side of the main base with the bottom wall as the upper side, the groove portion fits onto the protrusion.

3. The portable processing machine according to claim 2, A portable processing machine, wherein the bottom wall of the sub-base has a recess recessed toward the side wall between a first end of the sub-base in the front-to-back direction and a second end opposite the first end.

4. The portable processing machine according to claim 2 or 3, the sub-base includes a rail portion extending away from the side wall in the left-right direction, The main base is a first insertion opening provided on the first side and capable of receiving the rail portion from the first side; a second insertion opening provided on the second side and capable of receiving the rail portion from the second side; a rail receiving portion connected to the first insertion opening and the second insertion opening and extending in the left-right direction;

5. The portable processing machine according to claim 2, the sub-base includes a notch provided at a first end in the front-rear direction, A portable processing machine, wherein the notch is formed by cutting the side wall toward the first side when the sub-base is attached to the second side of the main base.

6. The portable processing machine according to claim 2, the sub-base includes a first engagement portion provided at a first end in the front-rear direction, A portable processing machine, wherein the first engagement portion is configured to engage with a sliding portion that slides the long ruler in the forward and backward directions when the sub-base is attached to the second side of the main base and the portable processing machine is used together with the long ruler.

7. The portable processing machine according to claim 6, the processing machine body includes a gripping portion for a user to grip, In the front-to-rear direction, when the side where processing of the portable processing machine progresses is defined as the front side and the side opposite to the front side is defined as the rear side, the long ruler used with the processing machine body comprises a fixed part provided on the rear side of the sliding part, and a connecting member connected to the fixed part and the sliding part, and when the connecting member is extended from a predetermined initial state as the sliding part moves toward the front side, a biasing force toward the rear side acts on the connecting member so as to return to the initial state, When the portable processing machine is used with the long ruler, The first engagement portion of the portable processing machine is configured to engage with the sliding portion and move the sliding portion toward the front as the portable processing machine is moved toward the front, and when the movement of the portable processing machine toward the front is released, to be pushed by the sliding portion by the spring force of the connecting member and moved toward the rear.

8. The portable processing machine according to claim 7, the sub-base includes a second engagement portion provided closer to a second end portion on the opposite side of the first end portion in the front-rear direction than the first engagement portion, The long ruler used together with the processing machine body includes a long ruler-side engaging portion connected to the sliding portion, A portable processing machine, wherein when the portable processing machine is used together with the long ruler, the second engagement portion is configured to engage with the long ruler side engagement portion and fix the position of the sub-base in the front-to-rear direction relative to the sliding portion.

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