JP7637411B2 - Saw guide device - Google Patents

Description

The present invention relates to a saw guide device that holds a saw blade that cuts a workpiece when the workpiece is being cut.

As an example of a saw guide device that holds the saw blade when cutting the workpiece, a hand saw jig is disclosed in Patent Document 1.

The hand saw jig disclosed in Patent Document 1 includes a guide base and a saw blade guide plate. The guide base is placed on the workpiece, and the saw blade is held between the front surface of the guide base and the rear surface of the saw blade guide plate, while the saw blade is moved back and forth to cut the workpiece.

In addition, in the hand saw jig disclosed in Patent Document 1, a spacer with a thickness equal to the thickness of the saw blade is sandwiched between the front surface of the guide base and the rear surface of the saw blade guide plate. This allows the gap between the front surface of the guide base and the rear surface of the saw blade guide plate to be set to an appropriate size.

Patent No. 4558264

As mentioned above, in the hand saw jig disclosed in Patent Document 1, the spacer adjusts the gap between the front surface of the guide base and the rear surface of the saw blade guide plate. Therefore, the saw blades that can be held by the hand saw jig are limited to those that are the same thickness as the spacer.

If the saw blade is clamped without a spacer between the front surface of the guide base and the rear surface of the saw blade guide plate, the following problems will arise. If the saw blade is clamped too tightly, the entire front and rear surfaces will be pressed against the saw blade, making it difficult for the saw blade to reciprocate. Also, if the saw blade is clamped too loosely, the saw blade will be more likely to become misaligned during cutting.

The object of the present invention is therefore to solve the above problems by providing a saw guide device that can be used with saw blades of various thicknesses and that allows easy adjustment of the gap between the members that hold the saw blade.

In order to achieve the above object, the present invention is configured as follows.
A saw guide device according to one aspect of the present invention comprises:
a base member having a first contact surface that contacts the saw blade and a supported surface that is supported by a workpiece to be cut by the saw blade and intersects with an imaginary plane that includes the first contact surface;
a clamping member having a second contact surface opposed to the first contact surface for clamping the saw blade between the first contact surface and the second contact surface;
a connecting portion that connects the base member and the clamping member on the opposite side of the supported surface with respect to the second contact surface in a direction perpendicular to the supported surface, and is capable of adjusting the size of a gap between the second contact surface and the first contact surface,
One of the first contact surface and the second contact surface is inclined relative to the other of the first contact surface and the second contact surface so as to approach the other of the first contact surface and the second contact surface as it approaches the supported surface from the connecting portion in the perpendicular direction.

The present invention provides a saw guide device that can be used with saw blades of various thicknesses and that allows easy adjustment of the gap between the members that hold the saw blade.

1 is a perspective view of a saw guide device according to an embodiment of the present invention; 1 is a perspective view of a saw guide device according to an embodiment of the present invention; FIG. 2 is an exploded perspective view of the saw guide device of FIG. 1; FIG. FIG. 2 is a right side view of the saw guide device according to the embodiment of the present invention. FIG. 11 is a plan view of the base member when the second member is in the second position. FIG. 11 is a plan view of the base member when the second member is in a third position. FIG. 4 is a bottom view of the saw guide device set on the workpiece. 1 is a perspective view of a saw guide device set on a workpiece and with a saw blade set therein; FIG. 4 is a plan view of the saw guide device when it is set on a workpiece and a saw blade is set therein; FIG. FIG. 11 is a perspective view of a saw guide device according to a modified example of an embodiment of the present invention.

A saw guide device according to one aspect of the present invention comprises:
a base member having a first contact surface that contacts the saw blade and a supported surface that is supported by a workpiece to be cut by the saw blade and intersects with an imaginary plane that includes the first contact surface;
a clamping member having a second contact surface opposed to the first contact surface for clamping the saw blade between the first contact surface and the second contact surface;
a connecting portion that connects the base member and the clamping member on the opposite side of the supported surface with respect to the second contact surface in a direction perpendicular to the supported surface, and is capable of adjusting the size of a gap between the second contact surface and the first contact surface,
One of the first contact surface and the second contact surface is inclined relative to the other of the first contact surface and the second contact surface so as to approach the other of the first contact surface and the second contact surface as it approaches the supported surface from the connecting portion in the perpendicular direction.

With this configuration, the size of the gap between the first contact surface and the second contact surface can be adjusted as desired by the connecting portion. This allows the first contact surface and the second contact surface to clamp saw blades of various thicknesses.

According to this configuration, one of the first and second contact surfaces is inclined with respect to the other of the first and second contact surfaces so as to approach the other of the first and second contact surfaces as it approaches the supported surface from the connecting portion in the orthogonal direction. As a result, parts of the first and second contact surfaces clamp the saw blade 91 by pressing the saw blade from both sides, while other parts do not press the saw blade from both sides. In this way, the pressure contact area of the first and second contact surfaces against the saw blade is small, so that the strength of the pressure contact against the saw blade has little effect on the reciprocating movement of the saw blade. Therefore, according to this configuration, the saw blade can easily reciprocate even when it is clamped between the first and second contact surfaces.

With this configuration, the strength of the pressure on the saw blade has little effect on the reciprocating motion of the saw blade, so the saw blade can be clamped between the first and second contact surfaces without having to worry about the strength of the pressure on the saw blade. In other words, it is easy to adjust the gap between the members that clamp the saw blade.

The saw guide device according to one aspect of the present invention may further include a positioning member having a positioning surface and detachable from the base member. In the saw guide device, when the positioning member is attached to the base member, the positioning surface may be perpendicular to an imaginary plane including the supported surface, and at least a portion of the positioning surface may be located on the opposite side of the supported surface from the first contact surface and the second contact surface in the perpendicular direction.

With this configuration, the saw guide device can be positioned relative to the workpiece by contacting the positioning surface with the side of the workpiece.

In the saw guide device, the positioning member may be capable of being fixed to the base member at any position in the perpendicular direction relative to the base member.

With this configuration, the position of the positioning member relative to the base member can be changed depending on the thickness of the workpiece. Therefore, even if the workpiece is thin, the length of the positioning member protruding from the supported surface can be made shorter than the thickness of the workpiece. Furthermore, if the workpiece is thick, the contact area of the positioning surface with the side surface of the workpiece can be increased by increasing the length of the positioning member protruding from the supported surface.

In the saw guide device, the base member may include a first member to which the positioning member is detachable, and a second member having the first contact surface and detachable from the first member, the connecting portion may connect the second member and the clamping member, the supported surface may be formed on at least one of the first member and the second member, one of the first member and the second member may include a plurality of convex portions, and the other of the first member and the second member may include a plurality of concave portions, and the second member may be attached to the first member in different positions depending on the combination of the engagement between at least some of the plurality of convex portions and at least some of the plurality of concave portions.

According to this configuration, the structure for attaching and detaching the second member to the first member is a simple structure of fitting a convex portion and a concave portion. Therefore, the second member can be attached and detached to the first member more easily than a configuration in which the second member is attached and detached to the first member by tightening a screw or the like.

With this configuration, the second member can be attached to the first member in different positions simply by changing the combination of the engagement between the multiple convex portions and the multiple concave portions. This allows the cutting direction of the saw blade relative to the workpiece to be changed to various directions by changing the orientation of the first contact surface according to each of the different positions.

In the saw guide device, the plurality of convex portions may include a first convex portion and a second convex portion, and the plurality of concave portions may include a first concave portion, a second concave portion, and a third concave portion. In the saw guide device, the second member may be attached to the first member in a first position by fitting the first concave portion and the first convex portion and fitting the second concave portion and the second convex portion, may be attached to the first member in a second position by fitting the third concave portion and the first convex portion, or may be attached to the first member in a third position by fitting the third concave portion and the second convex portion. In the saw guide device, the first contact surface of the second member in the second position may form a first angle with respect to the first contact surface of the second member in the first position when viewed from the perpendicular direction, and the first contact surface of the second member in the third position may form a second angle with respect to the first contact surface of the second member in the first position when viewed from the perpendicular direction.

With this configuration, the second member can take three positions by changing the combination of the first and second convex parts and the first, second, and third concave parts.

In the saw guide device, the first angle and the second angle may be the same size, and the first contact surface of the second member in the second position and the first contact surface of the second member in the third position may face in opposite directions.

With this configuration, the orientation of the saw blade clamped between the first and second contact surfaces can be set to be symmetrical to each other simply by switching the position of the second member between the second and third positions.

In the saw guide device, each of the plurality of convex portions may be composed of a plurality of protrusions, and each of the plurality of concave portions may be composed of a plurality of depressions.

This configuration reduces wobble between the engaged convex and concave portions compared to a base member in which each of the multiple convex portions is composed of a single protrusion and each of the multiple concave portions is composed of a single depression.

The saw guide device according to one aspect of the present invention may further include a clamp member that is detachable from the base member and is attached to the base member so as to face the positioning surface of the positioning member. In the saw guide device, the clamp member may include a main body that is detachable from the base member, and a movable member that is positioned between the positioning member and the main body, has an opposing surface that faces the positioning surface, and is supported by the main body so as to be movable along a direction perpendicular to the positioning surface.

With this configuration, when the workpiece is a thin rod, the workpiece can be clamped between the positioning surface and the opposing surface. This makes it possible to stabilize the position of the saw guide device relative to the workpiece.

In the saw guide device, the clamp member may be capable of being fixed to the base member at any position in the perpendicular direction relative to the base member.

With this configuration, the position of the clamp member relative to the base member can be changed depending on the thickness of the workpiece. Therefore, even if the workpiece is thin, the length of the clamp member protruding from the supported surface can be made shorter than the thickness of the workpiece.

In the saw guide device, the moving member may include a threaded portion that penetrates the main body, and a facing portion that is provided at the end of the threaded portion on the side of the positioning surface and has the facing surface, and the moving member may move relative to the main body in a direction perpendicular to the positioning surface by rotating the threaded portion around an axis.

With this configuration, the distance of the opposing surface from the positioning surface can be changed simply by rotating the screw portion.

In the saw guide device, the base member may have a pair of mounting portions facing each other, and the positioning member and the clamp member may be selectively attached to each of the pair of mounting portions.

With this configuration, the saw guide device can be switched from right-handed to left-handed specifications, or from left-handed to right-handed specifications, by switching the mounting positions of the positioning member and the clamp member selectively mounted on each of the pair of mounting parts.

In the saw guide device, at least a portion of the base member including the first contact surface and a portion of the clamping member including the second contact surface may be made of resin.

If at least one of the first and second contact surfaces were made of metal, the saw blade could be damaged by rubbing against the first and second contact surfaces when it was reciprocated while being clamped between the first and second contact surfaces. With this configuration, the first and second contact surfaces are made of resin, which reduces the possibility of the saw blade being damaged.

<Embodiment>
Fig. 1 is a perspective view of a saw guide device according to an embodiment of the present invention Fig. 2 is a perspective view of a saw guide device according to an embodiment of the present invention Fig. 3 is an exploded perspective view of the saw guide device of Fig. 1 .

The X, Y, and Z directions in the diagram are mutually perpendicular. The X, Y, and Z directions in the diagram indicate the width direction, up-down direction, and front-to-rear direction of the saw guide device, respectively. In the following, for ease of explanation, the direction of the X direction arrow is the right direction, the direction opposite the X direction arrow is the left direction, the direction of the Y direction arrow is the up direction, the direction opposite the Y direction arrow is the down direction, the direction of the Z direction arrow is the forward direction, and the direction opposite the Z direction arrow is the rearward direction.

The saw guide device 10 shown in Figures 1 to 3 is used when cutting a workpiece such as wood. The workpiece is a member to be cut by a saw blade, such as wood or a resin material. A saw blade is set in the saw guide device that is supported by the workpiece. The saw blade is reciprocated to cut the workpiece. At this time, because the saw blade is set in the saw guide device, it is possible to prevent the saw blade from becoming misaligned.

As shown in Figures 1 to 3, the saw guide device 10 includes a base member 20, a clamping member 30, a connecting portion 40, a positioning member 50, and a clamping member 60.

The base member 20 is supported on the upper surface of the workpiece. The clamping member 30 clamps the saw blade between the base member 20 and the clamping member 30. The connecting portion 40 connects the base member 20 and the clamping member 30. The positioning member 50 is attached to the base member 20. The saw guide device 10 is positioned relative to the workpiece when the positioning member 50 comes into contact with the side of the workpiece. The clamping member 60 is attached to the base member 20 and is capable of clamping the workpiece between the clamping member 60 and the positioning member 50. The configuration of each component of the saw guide device 10 is described below.

<Base member 20>
As shown in FIGS. 1 to 3, the base member 20 includes a first member 21 and a second member 22 .

As shown in Figures 1 and 2, the second member 22, the positioning member 50, and the clamp member 60 are detachable from the first member 21. The attachment and detachment of each member will be described later.

The first member 21 has a box shape that is open downward. As shown in FIG. 3, the first member 21 has an upper plate portion 211 and a side plate portion 212 that extends downward from the outer edge of the upper plate portion 211. The lower end portion of the side plate portion 212 is the lower surface 21A of the first member 21. The lower surface 21A is supported by the workpiece. As a result, the first member 21 is supported by the workpiece. The lower surface 21A of the first member 21 is an example of a supported surface. Note that the shape of the first member 21 is not limited to a box shape that is open downward.

A pair of notches 21B are formed in the first member 21. One of the pair of notches 21B is formed in the left side plate portion 212. The other of the pair of notches 21B is formed in the right side plate portion 212. Each of the pair of notches 21B is formed upward from the lower end of the side plate portion 212. The pair of notches 21B are an example of a pair of mounting portions.

A pair of grooves 21C are formed in the left side plate portion 212. The pair of grooves 21C are formed with a gap in the Z direction. Each of the pair of grooves 21C extends in the Y direction from the lower end to the upper end of the left side plate portion 212. A notch 21B is formed between the pair of grooves 21C.

A pair of grooves 21D are formed in the right side plate portion 212. The pair of grooves 21D are formed with a gap in the Z direction. Each of the pair of grooves 21D extends in the Y direction from the lower end to the upper end of the right side plate portion 212. A notch 21B is formed between the pair of grooves 21D.

The pair of grooves 21C and the pair of grooves 21D have the same configuration. The pair of grooves 21C and the pair of grooves 21D are formed at the same position in the Z direction.

Figure 4 is a bottom view of the first member. As shown in Figure 4, a recess 23 is formed in the lower surface 211A of the upper plate portion 211 of the first member 21.

In this embodiment, the recess 23 has three recesses 231, 232, and 233. The recess 233 is formed at the rear end and in the left-right center of the first member 21. The recess 231 is formed diagonally forward and to the left of the recess 233. The recess 232 is formed diagonally forward and to the right of the recess 233. The recesses 231 and 232 are aligned in the X direction. The recess 231 is an example of a first recess. The recess 232 is an example of a second recess. The recess 233 is an example of a third recess.

Each of the recesses 231, 232, and 233 is composed of two recesses. The recess 231 is composed of two recesses 231A and 231B. The recess 231B is located diagonally to the left rear of the recess 231A. The recess 232 is composed of two recesses 232A and 232B. The recess 232B is located diagonally to the right rear of the recess 232A. The recess 233 is composed of two recesses 233A and 233B. The recesses 233A and 233B are aligned in the X direction. The recess 233A is located diagonally to the left rear of the recess 232B. The recess 233B is located diagonally to the right rear of the recess 231B.

As a result of the above, three recesses 23 (six depressions) are formed on the lower surface 211A of the upper plate portion 211 of the first member 21.

The number of recesses provided in each of the recesses 231, 232, 233 is not limited to two. Each of the recesses 231, 232, 233 may be composed of one recess, or three or more recesses. The number of recesses constituting each of the recesses 231, 232, 233 may be the same or different. The number of recesses 23 formed on the lower surface 211A of the upper plate portion 211 of the first member 21 is not limited to three.

As shown in FIG. 3, the second member 22 has a plate-shaped vertical portion 221 that extends generally in the X and Y directions, and a bottom portion 222 that protrudes forward from the lower end of the vertical portion 221. The lower surface of the bottom portion 222 is the lower surface 22B of the second member 22. Note that the shape of the second member 22 is not limited to the shapes shown in each figure such as FIG. 3.

The contact surface 22A, which is the rear surface of the second member 22 excluding the upper part, faces the contact surface 30A of the clamping member 30 and clamps the saw blade between the contact surface 30A and the clamping member 30, as described below. At this time, the contact surface 22A of the second member 22 contacts the saw blade. The contact surface 22A of the second member 22 is an example of a first contact surface. The contact surface 22A is located above the lower surface 22B of the second member 22.

The lower surface 22B of the second member 22 is flush with the lower surface 21A of the first member 21 when the second member 22 is attached to the first member 21. As a result, the lower surface 22B is supported by the workpiece. As a result, the second member 22, together with the first member 21, is supported by the workpiece. The lower surface 22B of the second member 22 is an example of a supported surface.

In this embodiment, the lower surface 22B of the second member 22 is a surface that extends in the X direction and the Z direction. On the other hand, the contact surface 22A of the second member 22 is a surface that extends in the X direction and the Y direction. In other words, in this embodiment, the lower surface 22B is perpendicular to an imaginary plane that includes the contact surface 22A.

A pair of through holes 22C and a through hole 22D are formed in the vertical portion 221 of the second member 22. The through holes 22C and 22D are formed above the contact surface 22A. The through holes 22C and 22D penetrate the vertical portion 221 in the Z direction. The pair of through holes 22C are formed side by side in the X direction. The through hole 22D is formed between the pair of through holes 22C.

A protrusion 24 is formed on the upper surface of the bottom 222 of the second member 22.

In this embodiment, the convex portion 24 has two convex portions 241 and 242. The convex portion 241 is formed on the left part of the upper surface of the bottom portion 222. The convex portion 242 is formed on the right part of the upper surface of the bottom portion 222. The convex portions 241 and 242 are aligned with each other in the X direction. The convex portion 241 is an example of a first convex portion. The convex portion 242 is an example of a second convex portion.

Each of the convex portions 241, 242 is composed of two protrusions. The convex portion 241 is composed of two protrusions, 241A and 241B. The convex portion 242 is composed of two protrusions, 242A and 242B. The protrusion 241A is located diagonally to the right and in front of the protrusion 241B. The protrusion 242A is located diagonally to the left and in front of the protrusion 242B. The protrusions 241A and 242A are aligned in the X direction.

As a result of the above, two convex portions 24 (four protrusions) are formed on the upper surface of the bottom portion 222 of the second member 22.

The number of protrusions provided on each of the convex portions 241, 242 is not limited to two. Each of the convex portions 241, 242 may be composed of one protrusion, or may be composed of three or more protrusions. The number of protrusions constituting each of the convex portions 241, 242 may be the same number, or may be different numbers. The number of protrusions 24 formed on the upper surface of the bottom portion 222 of the second member 22 is not limited to two.

The second member 22 is detachable from the first member 21. The second member 22 is attached to the first member 21 by engaging the convex portion 24 of the second member 22 with the concave portion 23 of the first member 21. On the other hand, the second member 22 is removed from the first member 21 by releasing the engagement.

The second member 22 is attached to the first member 21 as shown in Figures 1 and 2 by fitting the convex portion 241 and the concave portion 231 together and fitting the convex portion 242 and the concave portion 232 together. In detail, the second member 22 is attached to the first member 21 as shown in Figures 1 and 2 by fitting the protrusion 241A into the recess 231A, the protrusion 241B into the recess 231B, the protrusion 242A into the recess 232A, and the protrusion 242B into the recess 232B.

Note that there are other ways for the projections 24 and recesses 23 to fit together besides the ways described above, but these other ways for the projections 24 and recesses 23 to fit together will be explained later in the section <Positions of the base member 20>.

<Clamping member 30 and connecting portion 40>
3, the clamping member 30 is a plate-shaped member extending generally in the X and Y directions. The clamping member 30 is disposed behind the second member 22 of the base member 20 so as to face the second member 22 in the Z direction.

The contact surface 30A, which is the front surface of the clamping member 30 excluding the upper part, faces the contact surface 22A of the second member 22 and clamps the saw blade between the contact surface 22A. The contact surface 30A is an example of a second contact surface. Like the contact surface 22A, the contact surface 30A is located above the lower surface 22B of the second member 22.

A pair of protrusions 31 and a through hole 30B are formed on the front surface of the clamping member 30. The protrusions 31 and the through hole 30B are formed above the contact surface 30A. The pair of protrusions 31 protrude forward from the front surface of the clamping member 30. The through hole 30B penetrates the clamping member 30 in the Z direction. The pair of protrusions 31 are formed side by side in the X direction. The through hole 30B is formed between the pair of protrusions 31.

Each protrusion 31 is inserted into and fitted into each through hole 22C of the second member 22. This prevents the clamping member 30 from shifting in position relative to the second member 22.

The clamping member 30 is connected to the second member 22 by a connecting portion 40. In this embodiment, the connecting portion 40 includes a screw 41 and a nut 42. The screw 41 passes through the through hole 30B of the clamping member 30 from the rear, and then passes through the through hole 22D of the second member 22. The nut 42 is screwed onto the screw 41 that passes through the through hole 22D of the second member 22 from the front. As a result, as shown in Figures 1 and 2, the clamping member 30 and the second member 22 are fixed between the gripping portion 41A of the screw 41 and the nut 42, and the clamping member 30 and the second member 22 are connected. The gripping portion 41A is a portion that is gripped by the user when the screw 41 passes through the through holes 30B and 22D.

As described above, the through hole 30B is formed above the contact surface 30A. In other words, the connecting portion 40 connects the clamping member 30 and the second member 22 on the opposite side of the lower surface 22B from the contact surface 30A in the Y direction (a direction perpendicular to the lower surface 22B of the second member 22). The Y direction is an example of an orthogonal direction.

Figure 5 is a right side view of a saw guide device according to one embodiment of the present invention. As shown in Figure 5, a saw blade 91 can be clamped between the contact surface 30A of the clamping member 30 and the contact surface 22A of the second member 22.

The screwing position of the nut 42 relative to the screw 41 changes depending on the thickness of the saw blade 91 clamped between the contact surface 30A of the clamping member 30 and the contact surface 22A of the second member 22. In other words, the connecting part 40 (screw 41 and nut 42) can adjust the size of the gap between the contact surface 30A of the clamping member 30 and the contact surface 22A of the second member 22.

The connecting part 40 is not limited to the configuration of the screw 41 and nut 42. The connecting part 40 may have another known configuration, provided that it connects the base member 20 and the clamping member 30 and is capable of adjusting the size of the gap between the contact surfaces 22A and 30A.

The upper part of the contact surface 30A of the clamping member 30 is inclined in the Y direction so as to move forward as it moves downward. In other words, the upper part of the contact surface 30A of the clamping member 30 is inclined with respect to the contact surface 22A so as to move closer to the contact surface 22A of the second member 22 as it moves from the connecting portion 40 to the lower surface 22B of the second member 22 in the Y direction. The lower part of the contact surface 30A of the clamping member 30 expands in the X and Y directions, similar to the contact surface 22A of the second member 22.

As a result, when the saw blade 91 is clamped between the contact surface 30A of the clamping member 30 and the contact surface 22A of the second member 22, the entire contact surface 22A and the upper part of the contact surface 30A are in contact with the saw blade 91, while the lower part of the contact surface 30A is separated from the saw blade 91. In other words, the upper parts of the contact surfaces 22A and 30A clamp and press the saw blade 91 from both sides, while the lower parts of the contact surfaces 22A and 30A do not press the saw blade 91.

In this embodiment, the upper portion of the contact surface 30A is inclined relative to the contact surface 22A, while the lower portion of the contact surface 30A is not inclined relative to the contact surface 22A. However, it is sufficient that at least a portion of the contact surface 30A is inclined relative to the contact surface 22A. For example, the entire contact surface 30A may be inclined relative to the contact surface 22A.

<Each Position of the Base Member 20>
In this embodiment, the second member 22 of the base member 20 can be attached to the first member 21 of the base member 20 in three positions. Depending on the combination of the engagement between at least some of the plurality of convex portions 24 (see FIG. 3 ) and some of the plurality of concave portions 23 (see FIG. 4 ), the second member 22 is attached to the first member 21 in different positions (first position, second position, and third position described below).

As described above, the second member 22 is attached to the first member 21 as shown in FIGS. 1 and 2 by fitting the convex portion 241 (see FIG. 3) and the concave portion 231 (see FIG. 4) together and fitting the convex portion 242 (see FIG. 3) and the concave portion 232 (see FIG. 4) together. In detail, the second member 22 is attached to the first member 21 as shown in FIGS. 1 and 2 by fitting the protrusion 241A into the recess 231A, the protrusion 241B into the recess 231B, the protrusion 242A into the recess 232A, and the protrusion 242B into the recess 232B. The posture of the second member 22 at this time is the first posture.

Figure 6 is a plan view of the base member when the second member is in the second position. The second member 22 is attached to the first member 21 as shown in Figure 6 by engaging the convex portion 241 (see Figure 3) and the concave portion 233 (see Figure 4). In detail, the second member 22 is attached to the first member 21 as shown in Figure 6 by engaging the protrusion 241A with the recess 233A and the protrusion 241B with the recess 233B. The position of the second member 22 at this time is the second position.

Figure 7 is a plan view of the base member when the second member is in the third position. The second member 22 is attached to the first member 21 as shown in Figure 7 by engaging the convex portion 242 (see Figure 3) and the concave portion 233 (see Figure 4). In detail, the second member 22 is attached to the first member 21 as shown in Figure 7 by engaging the protrusion 242A with the recess 233B, and the protrusion 242B with the recess 233A. The position of the second member 22 at this time is the third position.

As shown in FIG. 6, the contact surface 22A of the second member 22 in the second posture forms a first angle θ1 with respect to an imaginary plane extending in the X and Y directions. Here, when the second member 22 is in the first posture (see FIG. 1), the contact surface 22A extends in the X and Y directions. In other words, when viewed from the Y direction, the contact surface 22A of the second member 22 in the second posture forms a first angle θ1 with respect to the contact surface 22A of the second member 22 in the first posture. In this embodiment, the magnitude of the first angle θ1 is 45 degrees.

As shown in FIG. 7, the contact surface 22A of the second member 22 in the third posture forms a second angle θ2 with respect to a virtual plane extending in the X and Y directions. Here, when the second member 22 is in the first posture (see FIG. 1), the contact surface 22A extends in the X and Y directions. In other words, when viewed from the Y direction, the contact surface 22A of the second member 22 in the third posture forms a second angle θ2 with respect to the contact surface 22A of the second member 22 in the first posture. In this embodiment, the magnitude of the second angle θ2 is 45 degrees.

In this embodiment, the first angle θ1 and the second angle θ2 are the same size. Also, in this embodiment, as shown in FIG. 6, when the second member 22 is in the second posture, the contact surface 22A faces in a direction having a leftward component, whereas when the second member 22 is in the third posture, the contact surface 22A faces in a direction having a rightward component. In other words, the contact surface 22A of the second member 22 in the second posture and the contact surface 22A of the second member 22 in the third posture face in opposite directions.

In this embodiment, the second member 22 can take three positions, but the positions that the second member 22 can take are not limited to three. For example, the second member 22 may take only one position. In this case, the first member 21 and the second member 22 may be integrally molded. Also, for example, the second member 22 may be able to take two or four or more positions.

The magnitude of the first angle θ1 is not limited to 45 degrees. The magnitude of the second angle θ2 is not limited to 45 degrees. The first angle θ1 and the second angle θ2 may be different magnitudes.

The above-mentioned modified example (a configuration in which the number of possible positions and the magnitudes of the first angle θ1 and the second angle θ2 differ from this embodiment) can be realized, for example, by appropriately setting the number and positions of the recesses 23 and the number and positions of the protrusions 24. Depending on the set number and positions of the recesses 23 and the number and positions of the protrusions 24, the second member 22 is attached to the first member 21 in different positions depending on the combination of the engagement between at least some of the multiple protrusions 24 and at least some of the multiple recesses 23.

The configuration for allowing the second member 22 to assume multiple positions relative to the first member 21 is not limited to the engagement between the recessed portion 23 and the protruding portion 24. For example, the second member 22 may be attached to the first member 21 so as to be rotatable. In this case, the second member 22 can assume different positions relative to the first member 21 by rotating.

<Positioning Member 50>
As shown in Fig. 1, the positioning member 50 is detachable from the first member 21 of the base member 20. As shown in Fig. 9, when a saw blade 91 is set in the saw guide device 10 and a workpiece is cut by the saw blade 91, the positioning member 50 comes into contact with a side surface 92D of the workpiece 92. This positions the saw guide device 10 relative to the workpiece 92.

As shown in FIG. 1, the positioning member 50 is attached to the first member 21 at a position facing the side plate portion 212 of the first member 21 in the X direction. The positioning member 50 is attached to the side plate portion 212 in which a notch 21B (see FIG. 3) is formed. The lower portion of the side of the positioning member 50 that faces the first member 21 is the positioning surface 50A. The positioning surface 50A extends in the Y direction and the Z direction. As shown in FIG. 9, the positioning surface 50A comes into contact with the side surface 92D of the workpiece 92 when the workpiece 92 is cut with the saw blade 91.

As shown in Figures 1 and 3, a pair of protrusions 501 and a through hole 50B are formed on the side surface of the positioning member 50 that faces the first member 21. The pair of protrusions 501 and the through hole 50B are formed above the positioning surface 50A. The pair of protrusions 501 protrude toward the side plate portion 212 of the first member 21. The through hole 50B penetrates the positioning member 50 in the X direction. The pair of protrusions 501 are formed side by side in the Z direction. The through hole 50B is formed between the pair of protrusions 501.

Each protrusion 501 engages with each groove 21D of the first member 21. This prevents the positioning member 50 from rotating or otherwise shifting in position relative to the first member 21 when the positioning member 50 is attached to the first member 21.

The positioning member 50 includes a screw 51 and a nut 52. The positioning member 50 is attached to the first member 21 by the screw 50 and the nut 52. The screw 51 passes through the through hole 50B from the right and then passes through the notch 21B of the first member 21. The nut 52 is screwed onto the screw 51 that passes through the notch 21B of the first member 21 from the left. As a result, as shown in FIG. 1, the positioning member 50 and the first member 21 are fixed between the gripping portion 51A of the screw 51 and the nut 52, and the positioning member 50 is attached to the first member 21. The gripping portion 51A is a portion that is gripped by the user when the screw 51 passes through the through hole 50B and the notch 21B.

When the positioning member 50 is attached to the first member 21, the positioning surface 50A extending in the Y and Z directions is perpendicular to an imaginary plane including the lower surface 21A of the first member 21 and the lower surface 22B of the second member 22 extending in the X and Z directions.

The screw 51 can pass through any position of the notch 21B. For example, when the screw 51 passes through the upper end of the notch 21B, the positioning member 50 (see FIG. 1) is located higher than when the screw 51 passes through the lower end of the notch 21B (see FIG. 9). In other words, the positioning member 50 can be fixed to the first member 21 at any position in the Y direction relative to the first member 21.

At least a portion of the positioning surface 50A is located below the lower surface 21A of the first member 21 and the lower surface 22B of the second member 22. For example, when the positioning member 50 is attached to the first member 21 by the screw 51 penetrating the lower end of the notch 21, most or all of the positioning surface 50A is located below the lower surfaces 21A, 22B. The area of the positioning surface 50A located below the lower surfaces 21A, 22B becomes smaller the further up the position at which the screw 51 penetrates the notch 21.

As described above, the contact surface 22A of the second member 22 and the contact surface 30A of the clamping member 30 are located above the lower surface 21A of the first member 21 and the lower surface 22B of the second member 22. In other words, at least a portion of the positioning surface 50A is located on the opposite side of the contact surfaces 22A and 30A from the lower surfaces 21A and 22B in the Y direction.

<Clamp Member 60>
2, the clamp member 60 is detachable from the first member 21 of the base member 20. The clamp member 60 is attached to the first member 21 at a position facing the side plate portion 212 of the first member 21 in the X direction. The clamp member 60 is attached to one of the side plate portions 212 on which the notch 21B is formed and to which the positioning member 50 is not attached. The clamp member 60 attached to the first member 21 faces the positioning member 50 attached to the first member 21 in the X direction via the first member 21.

As shown in FIG. 3, the clamp member 60 includes a main body 61, a movable member 62, a screw 63, and a nut 64.

The main body 61 is detachable from the first member 21. A pair of protrusions 611, through holes 61A and 61B, and an opening 61C (see FIG. 8) are formed on the side of the main body 61 that faces the first member 21.

The pair of protrusions 611 and the through hole 61A are formed above the through hole 61B. The pair of protrusions 611 protrude toward the side plate portion 212 of the first member 21. The through holes 61A, 61B penetrate the main body 61 in the X direction. The pair of protrusions 611 are formed side by side in the Z direction. The through hole 61A is formed between the pair of protrusions 501. The opening 61C is formed on the bottom surface of the main body 61 (see FIG. 8). The through hole 61B is in communication with the outside of the main body 61 via the opening 61C.

Each of the protrusions 611 engages with each of the grooves 21C of the first member 21. This prevents the main body 61 from rotating or otherwise shifting in position relative to the first member when the main body 61 is attached to the first member 21.

The clamp member 60 is attached to the first member 21 by a screw 63 and a nut 64. The screw 63 passes through the through hole 61A from the left and then through the notch 21B of the first member 21. The nut 64 is screwed onto the screw 63 that passes through the notch 21B of the first member 21 from the right. As a result, as shown in FIG. 2, the main body 61 and the first member 21 are fixed between the gripping portion 63A of the screw 63 and the nut 64, and the clamp member 60 is attached to the first member 21. The gripping portion 63A is the portion that is gripped by the user when the screw 63 passes through the through hole 61A and the notch 21B.

The screw 63 can pass through any position of the notch 21B. For example, when the screw 63 passes through the upper end of the notch 21B, the main body 61 (see FIG. 2) is located higher than when the screw 63 passes through the lower end of the notch 21B. In other words, the main body 61 can be fixed to the first member 21 at any position in the Y direction relative to the first member 21.

The moving member 62 is supported by the main body 61 so as to be movable along the X direction perpendicular to the positioning surface 50A. As shown in FIG. 3, the moving member 62 includes a threaded portion 621, an opposing portion 622, and a nut 623.

The screw portion 621 passes through the through hole 61B from the left and passes below the first member 21. In other words, the screw portion 621 passes through the main body 61.

The screw portion 621 has a grip portion 621A. The grip portion 621A is the portion that is gripped by the user when the screw portion 621 is inserted through the through hole 61B.

The nut 623 is inserted into the through hole 61B via the opening 61C and is disposed in the through hole 61B. As a result, the threaded portion 621 inserted into the through hole 61B screws into the nut 623. The threaded portion 621 moves leftward relative to the main body 61 by rotating about the axis in a first direction. The threaded portion 621 moves rightward relative to the main body 61 by rotating about the axis in a second direction opposite to the first direction. In other words, the moving member 62 moves relative to the main body 61 in the X direction by the threaded portion 621 rotating about the axis.

The facing portion 622 is screwed into the tip of the threaded portion 621. The tip of the threaded portion 621 is the end of the threaded portion 621 opposite the gripping portion 621A. In other words, the tip of the threaded portion 621 is the end of the positioning surface 50A side of the moving member 62. The facing portion 622 has a facing surface 622A. The facing surface 622A is the surface of the facing portion 622 opposite the portion that is screwed into the threaded portion 621. The facing portion 622 is located between the main body 61 and the positioning member 50. The facing surface 622A faces the positioning surface 50A of the positioning member 50 in the X direction.

As described below, the opposing surface 622A can come into contact with the workpiece located between the positioning surface 50A. The position of the moving member 62 in the X direction varies depending on the width (length in the X direction) of the workpiece located between the opposing surface 622A and the positioning surface 50A. Specifically, the longer the width of the workpiece, the more to the left the position of the moving member 62 moves, and the shorter the width of the workpiece, the more to the right the position of the moving member 62 moves. In other words, the moving member 62 is supported by the main body 61 so as to be movable along the X direction perpendicular to the positioning surface 50A.

Figure 8 is a bottom view of the saw guide device set on the workpiece. As shown in Figure 8, when the width (length in the X direction) of the workpiece 92 is equal to or less than the maximum distance between the positioning surface 50A of the positioning member 50 and the opposing surface 622A of the clamp member 60, the workpiece 92 can be clamped between the positioning surface 50A and the opposing surface 622A. Specifically, with one side surface 92A of the workpiece 92 in contact with the positioning surface 50A, the moving member 62 is moved toward the positioning surface 50A, so that the opposing surface 622A comes into contact with the other side surface 92B of the workpiece 92.

The shape of the clamp member 60 and the configuration in which the movable member 62 moves along the X direction are not limited to the above-mentioned shapes and configurations, and various known shapes and configurations can be adopted.

<Ingredients>
The saw guide device 10 described above is made of resin and metal. In this embodiment, the screws and nuts of the saw guide device 10 are made of metal, and the other parts are made of resin.

In the saw guide device 10, the screws and nuts may be made of resin. In the saw guide device 10, the other parts may be made of metal. However, in the saw guide device 10, it is preferable that the part including the contact surface 22A (the second member 22 of the base member 20 in this embodiment) and the part including the contact surface 30A (the clamping member 30 in this embodiment) are made of resin. In other words, it is preferable that at least the part including the contact surface 22A in the base member 20 and the part including the contact surface 30A in the clamping member 30 are made of resin.

The materials constituting the saw guide device 10 are not limited to those described above. For example, at least a portion of the saw guide device 10 may be made of a material other than resin and metal, such as wood or ceramic.

<Usage example>
An example of how the saw guide device 10 can be used will now be described.

Figure 9 is a perspective view of the saw guide device when it is set on the workpiece and the saw blade is set.

As shown in FIG. 9, the positioning member 50 is attached to the first member 21 of the base member 20. Next, the base member 20 and the positioning member 50 are placed on the workpiece 92. At this time, the lower surfaces 21A, 22B of the base member 20 come into contact with the upper surface 92C of the workpiece 92, thereby positioning the saw guide device 10 vertically (Y direction) relative to the workpiece 92. In addition, the positioning surface 50A of the positioning member 50 comes into contact with the side surface 92D of the workpiece 92, thereby positioning the saw guide device 10 horizontally (X direction) relative to the workpiece 92.

At this time, the position of the positioning member 50 in the Y direction relative to the first member 21 can be adjusted according to the thickness (length in the Y direction) of the workpiece 92.

The saw blade 91 is clamped between the second member 22 of the base member 20 and the clamping member 30. This allows the saw blade 91 to be set in the saw guide device 10.

The order in which the above-mentioned components are attached, placed, and adjusted, and the saw blade 91 is set, is arbitrary.

With the saw guide device 10 supported by the workpiece 92 and the saw blade 91 set in the saw guide device 10, the saw blade 91 is reciprocated in the X direction. This cuts the workpiece 92.

Figure 10 is a plan view of the saw guide device when it is set on the workpiece and the saw blade is set.

Figure 10 shows an example of the use of the saw guide device 10 when the second member 22 is attached to the first member 21 in the second position. When the second member 22 is attached to the first member 21 in the second position, the workpiece 92 can be cut at an angle of 45 degrees relative to the side surface 92D.

The example of use shown in FIG. 9 above is an example of use of the saw guide device 10 when the second member 22 is attached to the first member 21 in the first position.

Although not shown, when the second member 22 is attached to the first member 21 in the third position, the saw guide device 10 can be used in the same manner as when the second member 22 is attached to the first member 21 in the second position.

<Effects of this embodiment>
According to this embodiment, the size of the gap between the contact surfaces 22A, 30A can be arbitrarily adjusted by the connecting portion 40. This allows the contact surfaces 22A, 30A to clamp saw blades of various thicknesses.

According to this embodiment, the contact surface 30A is inclined with respect to the contact surface 22A so as to approach the contact surface 22A in the Y direction as it approaches the lower surfaces 21A, 22B from the connecting portion 40. As a result, the lower parts of the contact surfaces 22A, 30A clamp the saw blade 91 by pressing it from both sides, while the upper parts of the contact surfaces 22A, 30A do not press the saw blade 91 from both sides. In this way, since the pressure contact area of the contact surfaces 22A, 30A against the saw blade 91 is small, the strength of the pressure contact against the saw blade 91 has little effect on the reciprocating movement of the saw blade 91. Therefore, according to this embodiment, the saw blade 91 can easily reciprocate even when it is clamped between the contact surfaces 22A, 30A.

According to this embodiment, the strength of the pressure applied to the saw blade 91 has little effect on the reciprocating motion of the saw blade 91, so the saw blade 91 can be clamped between the contact surfaces 22A and 30A without having to worry about the strength of the pressure applied to the saw blade 91. In other words, it is easy to adjust the gap between the second member 22 and the clamping member 30 that clamp the saw blade 91.

According to this embodiment, as shown in FIG. 9, the saw guide device 10 can be positioned relative to the workpiece 92 by contacting the positioning surface 50A with the side surface 92D of the workpiece 92.

According to this embodiment, the position of the positioning member 50 relative to the base member 20 can be changed depending on the thickness (length in the Y direction) of the workpiece 92. Therefore, even if the workpiece 92 is thin (short in the Y direction), the protruding length of the positioning member 50 from the lower surfaces 21A, 22B can be made shorter than the thickness of the workpiece 92. Also, if the workpiece 92 is thick (long in the Y direction), the contact area of the positioning surface 50A with the side surface 92D of the workpiece 92 can be increased by increasing the protruding length of the positioning member 50 from the lower surfaces 21A, 22B.

According to this embodiment, the structure for attaching and detaching the second member 22 to and from the first member 21 is a simple structure in which the convex portion 24 and the concave portion 23 are fitted together. Therefore, the second member 22 can be attached and detached to and from the first member 21 more easily than a structure in which the second member 22 is attached and detached to and from the first member 21 by screwing or the like.

According to this embodiment, the second member 22 can be attached to the first member 21 in different orientations simply by changing the combination of the engagement between the multiple convex portions 24 and the multiple concave portions 23. This allows the cutting orientation of the saw blade 91 relative to the workpiece 92 to be changed to various orientations by changing the orientation of the contact surface 22A according to each of the different orientations.

In this embodiment, the second member 22 can take three positions by changing the combination of the engagement between the convex portions 241, 242 and the concave portions 231, 232, 233.

According to this embodiment, the orientation of the saw blade 91 clamped by the contact surfaces 22A and 30A can be set to be symmetrical to each other simply by switching the orientation of the second member 22 between the second and third positions.

According to this embodiment, each of the multiple convex portions 24 is composed of two protrusions, and each of the multiple concave portions 23 is composed of two depressions. Therefore, compared to a base member 20 in which each of the multiple convex portions 24 is composed of one protrusion, and each of the multiple concave portions 23 is composed of one depression, it is possible to reduce rattling between the engaged convex portions 24 and concave portions 23.

According to this embodiment, when the workpiece 92 is a thin rod-like material, the workpiece 92 can be sandwiched between the positioning surface 50A and the opposing surface 622A (see FIG. 8). This makes it possible to stabilize the position of the saw guide device 10 relative to the workpiece 92.

According to this embodiment, the position of the clamp member 60 relative to the base member 20 can be changed depending on the thickness (length in the Y direction) of the workpiece 92. Therefore, even if the workpiece 92 is thin, the protruding length of the clamp member 60 from the lower surfaces 21A, 22B can be made shorter than the thickness of the workpiece 92.

In this embodiment, the distance of the opposing surface 622A from the positioning surface 50A can be changed simply by rotating the screw portion 621.

If at least one of the contact surfaces 22A, 30A were made of metal, the saw blade 91 would be subject to damage from rubbing against the contact surfaces 22A, 30A when it was reciprocated while being clamped between the contact surfaces 22A, 30A. According to this embodiment, the contact surfaces 22A, 30A are made of resin, which reduces the possibility of the saw blade 91 being damaged.

<Modification>
Fig. 11 is a perspective view of a saw guide device according to a modified embodiment of the present invention. In the above embodiment, as shown in Figs. 1 and 2, the positioning member 50 is attached to the right side (X direction) of the first member 21 of the base member 20, and the clamp member 60 is attached to the left side (opposite to the X direction) of the first member 21 of the base member 20. However, the attachment positions of the positioning member 50 and the clamp member 60 to the first member 21 may be reversed.

That is, as shown in FIG. 11, the clamp member 60 may be attached to the right side (X direction) of the first member 21 of the base member 20, and the positioning member 50 may be attached to the left side (opposite the X direction) of the first member 21 of the base member 20. That is, the positioning member 50 and the clamp member 60 can be selectively attached to each of the pair of notches 21B. When the user of the saw guide device 10 is right-handed, the configuration shown in FIG. 1 and FIG. 2 is used. On the other hand, when the user of the saw guide device 10 is left-handed, the configuration shown in FIG. 11 is used.

According to this modified example, the saw guide device 10 can be switched from right-handed to left-handed specifications, or from left-handed to right-handed specifications, by switching the mounting positions of the positioning member 50 and the clamp member 60 selectively mounted to each of the pair of notches 21B.

In the above embodiment, the first member 21 has a recess 23 and the second member 22 has a protrusion 24, but the second member 22 may have a recess 23 and the first member 21 may have a protrusion 24.

In the above embodiment, the lower surface 21A of the first member 21 and the lower surface 22B of the second member 22 are perpendicular to an imaginary plane including the contact surface 22A of the second member 22. However, the lower surfaces 21A and 22B only need to intersect with the imaginary plane including the contact surface 22A, and are not necessarily perpendicular to the imaginary plane. For example, the contact surface 22A may extend along a plane that is inclined with respect to a plane extending in the X and Y directions.

In the above embodiment, the contact surface 22A of the second member 22 extends in the X and Y directions, while the contact surface 30A of the clamping member 30 is inclined relative to the plane extending in the X and Y directions so as to approach the contact surface 22A as it approaches downward. However, contrary to the above embodiment, the contact surface 30A of the clamping member 30 may extend in the X and Y directions, while the contact surface 22A of the second member 22 may be inclined relative to the plane extending in the X and Y directions so as to approach the contact surface 30A as it approaches downward. In addition, both the contact surface 22A of the second member 22 and the contact surface 30A of the clamping member 30 may be inclined so as to approach the opposing surface as it approaches downward.

In the above embodiment, the lower surface 21A of the first member 21 and the lower surface 22B of the second member 22 are flush with each other, and both lower surfaces 21A and 22B are supported by the workpiece 92, but only one of the lower surfaces 21A and 22B may be supported by the workpiece 92. In this case, the lower surfaces 21A and 22B do not have to be flush with each other. In other words, the supported surface that is supported by the workpiece 92 needs to be formed on at least one of the first member 21 and the second member 22.

In the above embodiment, the clamping member 30, the positioning member 50, and the clamping member 60 are attached to the base member 20 by screws, but various known attachment means other than screws may be used to attach these members to the base member 20.

In addition, any of the various embodiments and modifications described above can be appropriately combined to achieve the effects of each.

Although the present invention has been fully described in connection with the preferred embodiment with appropriate reference to the drawings, various modifications and alterations will be apparent to those skilled in the art. Such modifications and alterations are to be understood as included within the scope of the present invention as defined by the appended claims, unless they depart therefrom.

10 Saw guide device 20 Base member 21 First member 21A Lower surface (supported surface)
21B Notch (mounting part)
22 Second member 22A Contact surface (first contact surface)
22B Bottom surface (supported surface)
23 Recess 231 Recess (first recess)
231A recess 231B recess 232 recess (second recess)
232A recess 232B recess 233 recess (third recess)
233A: recess 233B: recess 24: protrusion 241: protrusion (first protrusion)
241A protrusion 241B protrusion 242 convex portion (second convex portion)
242A Protrusion 242B Protrusion 30 Holding member 30A Contact surface (second contact surface)
40 Connection portion 50 Positioning member 50A Positioning surface 60 Clamping member 61 Main body 62 Moving member 621 Threaded portion 622 Opposing portion 622A Opposing surface 91 Saw blade 92 Workpiece θ1 First angle θ2 Second angle

Claims (12)

a base member having a first contact surface that contacts the saw blade and a supported surface that is supported by a workpiece to be cut by the saw blade and intersects with an imaginary plane that includes the first contact surface;
a clamping member having a second contact surface opposed to the first contact surface for clamping the saw blade between the first contact surface and the second contact surface;
a connecting portion that connects the base member and the clamping member on the opposite side of the supported surface with respect to the second contact surface in a direction perpendicular to the supported surface, and is capable of adjusting the size of a gap between the second contact surface and the first contact surface,
A saw guide device in which one of the first contact surface and the second contact surface is inclined relative to the other of the first contact surface and the second contact surface so as to approach the other of the first contact surface and the second contact surface as it approaches the supported surface from the connecting portion in the perpendicular direction. a positioning member having a positioning surface and detachable from the base member;
2. The saw guide device according to claim 1, wherein when the positioning member is attached to the base member, the positioning surface is perpendicular to a virtual plane including the supported surface, and at least a portion of the positioning surface is located on the opposite side of the supported surface from the first contact surface and the second contact surface in the perpendicular direction. The saw guide device according to claim 2, wherein the positioning member can be fixed to the base member at any position in the perpendicular direction relative to the base member. The base member is
A first member to which the positioning member is detachable;
a second member having the first contact surface and detachable from the first member;
The connecting portion connects the second member and the clamping member,
The supported surface is formed on at least one of the first member and the second member,
One of the first member and the second member includes a plurality of protrusions,
the other of the first member and the second member includes a plurality of recesses,
The saw guide device according to claim 2 or 3, wherein the second member is attached to the first member in different orientations depending on a combination of fitting between at least some of the plurality of convex portions and at least some of the plurality of concave portions. The plurality of protruding portions include a first protruding portion and a second protruding portion,
the plurality of recesses includes a first recess, a second recess, and a third recess;
The second member is
the first recess and the first protrusion are fitted together and the second recess and the second protrusion are fitted together, whereby the first member is attached in a first attitude;
the third recess and the first protrusion are fitted together to be attached to the first member in a second position;
the third recess and the second protrusion are fitted together to be attached to the first member in a third attitude;
When viewed from the orthogonal direction, the first contact surface of the second member in the second posture forms a first angle with respect to the first contact surface of the second member in the first posture;
The saw guide device of claim 4 , wherein the first contact surface of the second member in the third position forms a second angle with respect to the first contact surface of the second member in the first position when viewed from the orthogonal direction. the first angle and the second angle have the same size;
The saw guide apparatus of claim 5 , wherein the first contact surface of the second member in the second position and the first contact surface of the second member in the third position face in opposite directions. Each of the plurality of protrusions is formed of a plurality of projections,
The saw guide device according to claim 4 , wherein each of the plurality of recesses is formed by a plurality of indentations. a clamp member that is detachable from the base member and is attached to the base member so as to face the positioning surface of the positioning member;
The clamp member is
A main body that is detachable from the base member;
The saw guide device according to any one of claims 2 to 7, further comprising: a movable member positioned between the positioning member and the main body, having an opposing surface opposing the positioning surface, and supported by the main body so as to be movable along a direction perpendicular to the positioning surface. The saw guide device according to claim 8, wherein the clamp member can be fixed to the base member at any position in the perpendicular direction relative to the base member. The moving member is
A threaded portion penetrating the body;
an opposing portion provided at an end of the threaded portion on the positioning surface side and having the opposing surface;
The saw guide device according to claim 8 or 9, wherein the moving member moves relatively to the main body in a direction perpendicular to the positioning surface by the rotation of the threaded portion about an axis. The base member includes a pair of mounting portions opposed to each other,
The saw guide device according to any one of claims 8 to 10, wherein the positioning member and the clamp member are selectively attachable to each of the pair of mounting portions. The saw guide device according to any one of claims 1 to 11, wherein at least a portion of the base member including the first contact surface and a portion of the clamping member including the second contact surface are made of resin.

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