JPH1134003A - Parallel guide for electric circular sawing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable smooth, resistance-free cutting work by attaching a guide body which enables the correction of a parallel state to the guide base of a parallel guide, and setting complete a saw blade rotational surface and the slide surface of the guide body to a more complete parallel state. SOLUTION: By rotating an adjustment ring 43r of an angle adjustment mechanism 43 manually, right and left shafts are rotated axially, both guide bodies 42a, 42b which are screwed to the shafts are moved by the screw directions of the shafts. Since the directions of the spiral grooves of the shafts are opposite to each other, according the rotational directions, they are brought close to each other (arrow n) or separated form each other (arrow m) by the same distance. Since both guide bodies 41a, 42b are mounted on a guide base 41 by one end side as a rotation point 47, the guide bodies 42a, 42b are moved horizontally at the same angle opposite to each other (arrows m, n) around the point 47.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an electric circular saw which is mounted on a pedestal of an electric circular saw as a parallel guide which slides along an end surface of a plate material in order to cut the plate material into a long shape with a predetermined width. The present invention relates to a parallel guide for circular saws.

[0002]

2. Description of the Related Art Conventionally, when a plate material is cut into a long shape at a predetermined width, a saw blade is moved together with a scribe line indicating a cutting line.

[0003] As another conventional tool, there has been one using a parallel guide 8 for an electric circular saw (hereinafter abbreviated as "parallel guide"). As shown in FIGS. 14 and 15, the guide body 80 of the parallel guide 8 attached to the upper surface of the pedestal 70 of the electric circular saw 7 slides on the linear side end face 90 of the plate material 9 while sliding. By moving the circular saw 7, a long plate material 9 having a predetermined width between the guide body 80 and the pedestal 70 is cut out. The basic configuration of the parallel guide 8 is such that two parallel support bars 81, 81 can be adjusted to advance and retreat to two mounting ports 72, 72 arranged on the upper surface of a pedestal 70 before and after the saw blade 71, respectively. The guide member 80 is fixed and fixed to one end side (opposite to the pedestal side) of the two support bars 81, 81 so as to extend between the ends.
On the pedestal 70 side of the guide body 80, a sliding surface 82 is formed vertically below the support bar 81 so as to be parallel to the saw blade surface 71s.

[0004]

However, the parallel guide having such a structure has the following problems. In other words, the sliding surface 90 of the guide should be set in parallel with the saw blade surface 71 s. Was not completely parallel.

[0005] With such a slight shift of the parallel state,
When the parallel guide 8 is moved along the side end surface 90 of the plate material 9 as a reference, the moving direction of the electric circular saw 7 and the saw blade 7
1 do not coincide with each other, the saw blade surface 71
s touched the cut surface, which became a resistance and hindered smooth movement. This was very troublesome for the operator, and also affected the work efficiency.

In view of the above, the present invention has been made in view of such a problem. By attaching a guide body capable of correcting a parallel state to a guide base of a parallel guide, the saw blade rotation surface and the guide body can be fixed. An object of the present invention is to provide a novel parallel guide for an electric circular saw capable of setting the sliding surface in a more complete parallel state, and as a result, performing a cutting operation smoothly and without resistance.

[0007]

In order to achieve the above object, a parallel guide for an electric circular saw according to the present invention is configured as follows.

That is, one piece which is detachably attached to the pedestal of the electric circular saw in a direction substantially perpendicular to the saw blade surface and horizontally,
Or, two parallel support bars, and a linear guide base having a predetermined length attached to one end of the support bar so as to be substantially parallel to the saw blade surface of the electric circular saw when the support bar is mounted on the pedestal. A base, and a sliding surface mounted along the guide base, facing substantially parallel to the saw blade surface of the electric circular saw, and positioned below the support bar when the support bar is mounted on the pedestal. And the guide body is attached to the guide base so that the parallel state between the sliding surface and the saw blade surface can be adjusted appropriately.

In mounting the guide body on the guide base, one end side of the guide body is mounted on the guide base so as to be rotatable about a vertical axis, and the mounting position is rotated about a horizontal axis using the mounting position as a rotation axis. The adjustment mechanism is arranged on the other end side of the guide body.

Further, one or two parallel support bars are detachably mounted on the pedestal of the electric circular saw in a direction substantially perpendicular to the saw blade surface and in the horizontal direction. A linear guide base having a predetermined length attached to one end of the support bar so as to be substantially parallel to the saw blade surface of the circular saw, and opposed along the longitudinal direction on both horizontal sides of the guide base. And two guide bodies each having a flat sliding surface. The two guide bodies are mounted on a guide base such that one end opposite to the vertical axis is rotatable about a vertical axis, and the mounting position is set at this mounting position. An angle adjusting mechanism for horizontally rotating the opposing guide bodies horizontally at the same angle in directions opposite to each other with the rotation axis as a rotation axis is arranged at the other end side.

Further, an appropriate scale may be formed on the support bar if necessary.

[0012]

Since the present invention is constructed as described above, after the parallel guide of the present invention is attached to the base of the electric circular saw, the angle adjusting mechanism is adjusted to move the guide body in the horizontal direction with respect to the guide base. Let it. At this time, since one end side of the guide body is fixed, the guide body is swung right and left by an appropriate angle θ with the rotation point as a rotation axis. Thereby, the sliding surface of the guide body and the saw blade surface of the electric circular saw,
In the configuration of claims 6, 7 and 8, both guides can be vertically rotated to one end side by the adjustment of the angle adjustment mechanism. Since the guides are mounted on the base, the guides are horizontally rotated at the same angle in directions opposite to each other with the mounting position as a rotation axis.

The parallel guide is mounted on the right side of the pedestal with respect to the cutting movement direction (forward), and is used by sliding the pedestal-side sliding surface of the guide body against the side end surface of the plate material (normal state). At the same time, the support bar is turned upside down from the normal state, and is attached to the left side of the pedestal so that the support bar comes to the right side. In such a state, the guide body is used such that the sliding surface on the side opposite to the pedestal is slid on a so-called angle cutting ruler arranged on the upper surface of the plate material.

Further, when the upper edge of one of the two opposing guide members (the lower edge when inverted) is slightly protruded from that of the other guide member, the protruding portion is formed. It is used by fitting into a concave groove of a previously formed angle cutting ruler and sliding in the groove.

[0015]

Next, some embodiments of the present invention will be described with reference to the drawings. [Embodiment 1] FIG. 1 is a plan view showing Embodiment 1 of the parallel guide of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG.

The parallel guide 1 of the present embodiment comprises a support bar 1
0, guide base 11, guide body 12, movement adjusting means 1
3 and fixing means 14. The support bar 10 is mounted on the pedestal 7 with the
It is formed into two parallel rods having a cross-sectional shape and an interval, corresponding to the mounting opening 72 arranged before and after 0 (the cutting movement direction of the electric circular saw is set to the front).

The guide base 11 is in the form of a rectangular bar, and is bridged in the front-rear direction between the ends of one end of the support bar 10. The support bar 10 is attached to the pedestal 70. It is mounted so that it is located below (based on the case where the pedestal is placed horizontally).

The guide body 12 has a long box shape with a U-shaped cross section which is open downward, and is attached to the guide base 11 so as to cover it from above. The side surface in the pedestal direction of the left and right sides (with reference to the front) of the guide body 12 faces in parallel with the saw blade surface 71s and forms a flat sliding surface 12s.

One end of the guide body 12 is connected to the guide base 11.
On the top of the pin, rivet or bolt nut,
It is attached rotatably by supporting means such as. On the other hand, on the other end side of the guide body 12, an angle adjusting mechanism 13 and a fixing means 14 are arranged.

As shown in FIG. 2, the angle adjusting mechanism 13 allows the guide base 11 to penetrate the guide base 11 in the left-right direction with a fixed gap 13c ("free-run"), and bridges the opposing inner surfaces of the guide body 12. It is composed of a worm gear 13g attached so as to be passed over, and a thick disk-shaped worm ring 13r which is annularly fitted and meshed with the worm gear 13 and rotatably supported in the guide base 11. Warm ring 1
Part of the outer periphery of 3r is formed on the upper surface of the guide body 12 with an opening 1 formed in consideration of the moving range of the guide body 12 in the left-right direction.
It is configured to be exposed from 2h.

The fixing means 14 includes a bolt 14b erected and fixed to the guide base 11 and a tip end of the bolt 14b formed on the upper surface of the guide body 12 in consideration of a moving range of the guide body 12 in the left-right direction. Exposed through the opening 12o,
This and the wing nut 14n are fixed by screwing.

According to the first embodiment, the parallel guide 1 is mounted on the pedestal 70 of the electric circular saw 7 and then the worm gear 13g of the angle adjusting mechanism 13 is rotated in an appropriate direction to move the guide body 12 in the horizontal direction. Move. At this time, since one end side of the guide body 12 is fixed, the guide body 12 is swung right and left by an appropriate angle θ about the rotation point 15 as a rotation axis. Thereby, the sliding surface 12s of the guide body 12 and the saw blade surface 71s of the electric circular saw 7
A more complete parallel state can be set.

[Embodiment 2] FIG. 3 is a plan view showing Embodiment 2 of the parallel guide of the present invention, and FIG. 4 is a sectional view taken along line BB in FIG.

The support bar 10 of the parallel guide 2 of the second embodiment,
Since the basic configurations of the guide base 21 and the guide body 22 are the same as those in the first embodiment, the same components are denoted by the same reference numerals, and description thereof will be omitted. Only different points will be described. In the second embodiment, the movement adjusting unit 13 and the fixing unit 14 of the first embodiment are changed, and are replaced with a unit having both functions.

That is, the bolt 14b erected on the guide base 21 is slidably supported along a sliding groove 21s in the front-rear direction formed on the guide base 21.
A long hole 22h formed on the upper surface of the guide body 22 at a constant inclination with respect to the front-rear direction is exposed through the front end of the guide b, and is fixed by screw-fastening the wing nut 14n.

With this configuration, the bolt 14b and the wing nut 14n are moved together along the elongated hole 22h while the wing nut 14n is loosened. At this time, since the one-end rotation point 15 of the guide body 22 is fixed, the elongated hole 22h
The bolt 14b and the wing nut 14n move in the sliding groove 21s according to the inner movement. As a result, since the guide body 22 is fixed with a constant inclination with respect to the front-back direction of the guide base 21, the parallel state between the sliding surface 22s and the saw blade surface 71s can be changed by an appropriate angle θ. Become.

[Embodiment 3] FIG. 5 is a plan view showing Embodiment 3 of the parallel guide of the present invention, and FIG. 6 is a sectional view taken along line CC in FIG.

The support bar 30 of the parallel guide 3 of the third embodiment,
The basic configuration of the guide base 31 and the guide body 32 is as follows.
Since the third embodiment is the same as the first embodiment, the same components are denoted by the same reference numerals, and the description thereof will be omitted. Only different points will be described.

In the third embodiment, a scale 30m is formed on the upper surface of at least one of the support bars 30 so that the amount of advance from the pedestal 70 can be easily grasped. In addition, the pointer 30 extending along the upper surface of the guide body 32 at a substantially right angle from the shaft support point 30 c with the guide base 31 is provided on the support bar 30 on one side.
A scale 32m is formed on the upper surface of the guide body 32 so as to correspond to the pointer 30p. This guideline 30
By instructing the scale 32m of p, the inclination angle θ of the guide body 32 with respect to the guide base 31 can be easily grasped. The engraving of the scale 30 m is not limited to the third embodiment, but may be used in the first and second embodiments.

Further, as shown in the sectional view of FIG. 6, the angle adjusting mechanism 33 of the third embodiment includes a bolt 33b which penetrates the guide base 31 horizontally and is screwed with the through hole 31h. The bolt head 33h is disposed so as to be exposed from the side surface of the guide body 32 so as to be rotatable around the opposite inner side surfaces of the guide member 32 so as to be bridged therebetween.

With this configuration, by rotating the bolt head 33h, the guide base 31 screwed with the bolt head 33h
The axial direction of the bolt 33b is relatively moved.
As a result, since the guide body 32 is fixed with a constant inclination θ with respect to the front-rear direction of the guide base 31, the sliding surface 3 is fixed.
The parallel state of 2s and the saw blade surface 71s is changed.

In the third embodiment, the bolt 33b
Since the screwing distance between the guide body 31 and the guide base 31 is long, there is little possibility that the guide body 32 will move due to an external force. Therefore, the fixing means 14 as described above is not provided. [Embodiment 4] FIG. 7 is a plan view showing Embodiment 4 of the parallel guide of the present application, and FIG. 8 is a sectional view taken along line DD in FIG.

In the fourth embodiment, the basic structures of the support bar 40 of the parallel guide 4 and the guide base 41 are the same as those of the above embodiment. In the first to third embodiments, the guide bases 11, 2
The guide bodies 12, 22, and 32 attached to the first and the first 31 are formed in an elongated box shape having a U-shaped cross section open downward, and the flat sliding surfaces 12s, 22s, and 32s are formed on the pedestal 70 side (support bar). 81
However, in the fourth embodiment (and the fifth embodiment to be described later), two guide bodies 42a and 42b facing each other along the longitudinal direction of both horizontal side surfaces of the guide base 41 are arranged. doing.

The two guide bodies have flat sliding surfaces 42as, 42bs which are vertical when mounted on the pedestal 70.
Is formed. These sliding surfaces 42as, 42bs
Is the saw blade surface 7 in the guide body 42a on the pedestal 70 side.
In the guide body 42b on the opposite side, facing the side 1s, the guide body 42b is formed on the opposite side of the pedestal.

At two places separated from the front and rear of the two guides 42a and 42b, mounting pieces 44 and 45 are formed, which are arranged at right angles to the guide 42 and opposed to each other. The mounting pieces 44a and 44b at the rear position (the lower position in FIG. 7) of the guide body 42 are mounted on the upper surface of the guide base 41 so as to be rotatable with rivets and pins or the like. Further, the mounting pieces 45a and 45b at the front position are overlapped with each other with long holes 45ah and 45bh opened in the moving direction, and the bolts and nuts mechanism can be loosened by screwing through the long holes 45ah and 45bh respectively. It is attached to the upper surface of the guide base 41 by using 46.

Further, an angle adjusting mechanism 43 is disposed forward of the middle of the guide base 41. As shown in FIG. 8, the angle adjusting mechanism 43 includes a guide base 4
A disc-shaped adjustment ring 43r is disposed on the upper surface side of the inside 1 so that the rotation axis is horizontal and the shaft is supported. The body 43b is formed integrally. The left and right shaft members 43b are formed with spiral grooves in opposite directions on the outer periphery thereof, and are screwed through the opposing guide members. A stopper 43s is attached to the penetrated distal end, and serves as a limit position for movement of each of the guide bodies 42a and 42b. Also, the guide bodies 42a, 4
2b, a concave portion is formed on the opposite side, and the stopper 43s of the shaft body 43b is formed even when the space between the two is narrow.
Are the sliding surfaces 42as, 42bs of the guide bodies 42a, 42b.
Care is taken not to be exposed from.

As shown in FIG. 8, the upper and lower positions of the guide body are arranged such that most of the lower part is located below the support bar 40, while the upper part is located at a small distance L from the support bar 40. (Approximately the same distance as the thickness of the pedestal), and the upper edge 42be of the guide body 42b on the side opposite to the pedestal 70 is connected to the guide body 4 on the pedestal 70 side.
It is formed so as to be positioned higher than the horizontal by a small distance M from the upper edge 42ae of 2a.

The protrusion of the upper end edge 42be of the guide body 42b on the side opposite to the pedestal 70 from the other side is not limited to the side of the opposite side of the pedestal 70, but may be the upper end edge 42ae of the guide body 42a on the side of the pedestal 70. When the distance L + the distance M is set to approximately the thickness of the pedestal, the upper edge 42ae of the guide body 42a set to the distance L is a concave portion in FIG.

With the above configuration, by manually turning the adjusting ring 43r of the angle adjusting mechanism 43, the left and right shafts 43
b rotates around the shaft, and the two guide bodies 42a, 42
b moves according to the screw direction of the shaft 43b. At this time, since the directions of the spiral grooves of the shaft body 43b are opposite to each other, they approach each other by the same distance (arrow m) or separate from each other (arrow n) according to the rotation direction. As a result, both guide bodies 42a,
Since one end of the guide body 42b is attached to the guide base 41 as a pivot point 47, the two guide bodies 42a and 42b are rotated in the opposite direction (arrow m,
It will be horizontally rotated at the same angle to n).

[Embodiment 5] FIG. 9 is a plan view showing Embodiment 5 of the parallel guide of the present invention, and FIG. 10 is EE in FIG.
FIG. 11 is an exploded perspective view showing an enlarged cross section taken along line EE of FIG.

In the fifth embodiment, the basic configuration of the support bar 50, the guide base 51, and the guide body 52 of the parallel guide 5 is the same as that of the fourth embodiment.

The fifth embodiment is different from the fourth embodiment in the angle adjusting mechanism 53. That is, in each of the mounting pieces 53a, 53b opposed to each other and overlapped in the middle of both the guide bodies 52a, 52b, the sliding elongated holes 53a inclined in directions opposite to each other with respect to the front direction.
h, 53bh, and a guide groove 53 along the front direction (longitudinal direction of the guide base) in the guide base 51 corresponding to the intersection position when these are overlapped in an X-shape.
s is formed. In this guide groove 53s, a bolt 53c which is erected and held slidably in the groove is arranged, and each of the sliding elongated holes 53ah of the mounting pieces 53a, 53b in which the upper ends of the bolts 53c are overlapped with each other.
53bh is penetrated, and a nut ring 53r is screwed from the tip of the bolt 53c so that it can be tightened and loosened.

With the above configuration, the angle adjusting mechanism 53 according to the fifth embodiment operates as follows. First, nut ring 5
3r is manually turned so that the mounting pieces 53a, 53
b and the pressure bonding to the guide base 51 are released, and the bolt 53c is moved forward or backward according to the guide groove 53s. At this time, the bolt 53c is
The inside of the sliding long holes 53ah and 53bh of the a and 53b relatively move.

As a result, the two guide bodies 52a and 52b are horizontally rotated at the same angle in directions opposite to each other with the rotation point 55 as the rotation axis. That is, when the bolt is slid forward, the two guides are opened at the same angle in opposite directions (arrows m and n), and conversely, when the bolt is slid backward, It is closed.

The parallel guides 5, 4 of the fifth embodiment (and the fourth embodiment) are attached to the pedestal 70 on the right side with respect to the cutting movement direction (front), as shown in the drawing of the conventional example. Sliding surface 52 of pedestal 70 side of guide bodies 52 and 42
a and 42a are used by sliding against the side end face 90 of the plate material 9 (normal state). In addition, as shown in the plan view of FIG. 12 and the front view of FIG. The support bars 50 and 40 are turned upside down and are attached to the pedestal 70 so as to come to the right (on the drawing 12). In this case, the guide members 52 and 42 are used such that the slide surfaces 52bs and 42bs on the side opposite to the pedestal are brought into contact with the so-called angle cutting ruler 6 arranged on the upper surface of the plate material 9 and slid.

Further, the guide members 52b, 42 on the side opposite to the pedestal side.
Since the upper edge of b (the lower edge when turned over) slightly protrudes from that of the guide bodies 52a and 42a on the pedestal side,
This part is used by fitting it into the groove 60 of the angle cutting ruler 6 formed in advance and sliding.

The support bars 50 and 40 have a scale of 50 m,
By attaching 40 m, the support bar 5 in the normal state
The mounting positions of 0 and 40 can be grasped by the scale.
The displacement of the mounting position due to the play of the mounting port 72 can be corrected as appropriate.

[0048]

[Effect] Since the present invention is configured as described above,
By adjusting the angle adjusting mechanism after attaching the parallel guide to the pedestal of the electric circular saw, the saw blade rotation surface and the sliding surface of the guide body can be set in a more completely parallel state.
As a result, the cutting operation can be performed smoothly and without resistance, and the operation efficiency can be improved by the operation without stress.

When a guide body having a sliding surface is arranged on both horizontal sides of the guide base and an angle adjusting mechanism for inclining the sliding surface in directions opposite to each other with respect to a forward direction is provided, While maintaining the set state in which the parallel state with the saw blade surface is corrected at the position attached to one side of the circular saw, the electric saw can be turned upside down and used on the other side.
As a result, so-called angle cutting can be performed while maintaining the set parallel state, and the range of application can be widened.

Further, in the angle cutting, the lower end edge (or the upper edge) of the guide body is engaged with the concave portion formed in the angle cutting ruler and slid, so that more reliable guide can be performed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a parallel guide of the present application.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a plan view showing a second embodiment of the present parallel guide.

FIG. 4 is a sectional view taken along line BB in FIG. 3;

FIG. 5 is a plan view showing a third embodiment of the present parallel guide.

6 is a sectional view taken along line CC in FIG.

FIG. 7 is a plan view showing a fourth embodiment of the present parallel guide.

8 is a sectional view taken along line DD in FIG.

FIG. 9 is a plan view showing a fifth embodiment of the present parallel guide.

FIG. 10 is a sectional view taken along line EE in FIG. 9;

11 is an exploded perspective view showing an enlarged cross section taken along line EE in FIG. 9;

FIG. 12 is a plan view illustrating a use state of the fifth embodiment.

FIG. 13 is a front view showing a use state of the fifth embodiment.

FIG. 14 is a perspective view showing a state of use of a conventional parallel guide.

FIG. 15 is a plan view showing a use state of a conventional parallel guide.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Parallel guide 10 Support bar 11 Guide base 12 Guide body 12s Sliding surface 13 Angle adjustment mechanism 14 Fixing means 15 Rotating point 2 Parallel guide 21 Guide base 22 Guide body 22s Sliding surface 3 Parallel guide 30 Support bar 31 Guide Base 31h Through hole 32 Guide 32s Sliding surface 33 Angle adjustment mechanism 4 Parallel guide 40 Support bar 41 Guide base 42a, 42b Guide (left, right) 42as, 42bs Sliding surface (left, right) 42ae, 42be Upper end surface (left, right) 43 Angle adjustment mechanism 43r Adjustment ring 43b Shaft 45a, 45b Mounting piece (front left, right) 47 Rotation point 5 Parallel guide 50 Support bar 51 Guide base 52a, 52b Guide (left , Right) 52as, 52bs sliding surface (left, right) 52ae, 52be top end surface (left, right) 53 angle adjuster Structure 53s Guide groove 53c Bolt 53r Nut ring 55 Rotation point 7 Electric circular saw 70 Pedestal 71 Saw blade 71s Saw blade surface 8 Parallel guide 9 Plate material 90 Side end surface

Claims (10)

[Claims] 1. One or two parallel support bars which are detachably mounted on a pedestal of an electric circular saw in a direction substantially perpendicular to a saw blade surface and in a horizontal direction. A linear guide base having a predetermined length attached to one end of the support bar so as to be substantially parallel to the saw blade surface of the circular saw; and a saw blade of the electric circular saw mounted along the guide base. A guide body substantially parallel to the surface and having a sliding surface located below the support bar when the support bar is mounted on the pedestal, wherein the guide body includes the sliding surface and a saw blade. A parallel guide for an electric circular saw characterized by being attached to a guide base so that a parallel state with a surface can be adjusted as appropriate. In mounting the guide body to the guide base, one end of the guide body is vertically rotatably mounted on the guide base, and the mounting position is rotated in a horizontal direction with the mounting position as a rotation axis. The parallel guide for an electric circular saw according to claim 1, wherein the adjusting mechanism is arranged on the other end side of the guide body. 3. An angle adjusting mechanism, wherein a worm gear mounted on a guide body through a guide base, a worm ring annularly engaged with the guide base and rotatably supported in the guide base. 3. The parallel guide for an electric circular saw according to claim 1, wherein the guide body is relatively moved with respect to the guide base by rotation of the worm ring. 4. An angle adjustment mechanism, wherein a bolt is erected and supported slidably along a longitudinal sliding groove formed on a guide base, and a tip end of the bolt is longitudinally mounted on an upper surface of a guide body. On the other hand, the guide body is relatively exposed to the guide base by exposing through the elongated hole formed with a certain inclination, and the engagement movement between the sliding groove of the bolt and the inside of the elongated hole is performed. 3. The parallel guide for an electric circular saw according to claim 1, wherein a nut is fastened to a bolt exposed from the shaft to fix the position. 5. An angle adjusting mechanism, wherein a bolt which penetrates a guide base horizontally and is screwed with a through-hole is supported so as to be rotatable about an inner surface of an opposite side of a guide body. The bolt head is disposed so as to be exposed on one side surface of the guide body, and the guide body is moved relative to the guide base by rotating the bolt head. Claim 1 or 2
The parallel guide for the electric circular saw described. 6. One or two parallel support bars which are detachably mounted on a pedestal of an electric circular saw in a direction substantially perpendicular to a saw blade surface and in a horizontal direction. A linear guide base having a predetermined length attached to one end of the support bar so as to be substantially parallel to the saw blade surface of the circular saw, and opposing along the longitudinal direction on both horizontal sides of the guide base. And two guide bodies each having a flat sliding surface. The two guide bodies are mounted on a guide base such that one end opposite to the vertical axis is rotatable about a vertical axis. A parallel guide for an electric circular saw, characterized in that an angle adjusting mechanism for horizontally rotating opposite guides at the same angle in opposite directions with a position as a rotation axis is arranged at the other end. 7. An angle adjusting mechanism, comprising: a disc-shaped adjusting ring rotatably supported on an upper surface side of a guide base; and a shaft integrally formed with the adjusting ring; A rod extending through the
7. The electric circular saw according to claim 6, wherein the left and right rods are formed with spiral screw grooves in opposite directions on the outer periphery, and penetrate and guide the opposing guide bodies. Parallel guide. 8. An angle adjusting mechanism, comprising: a mounting piece which is opposed to and overlapped with the guide body in the middle of the guide body; and a sliding length formed on the mounting piece so as to be inclined in a direction opposite to the front direction. A guide groove formed along a front direction (longitudinal direction of the guide base) on a guide base corresponding to an intersection point when the sliding elongated holes are overlapped in an X-shape; A bolt held upright and slidably held in the groove, the upper end of the bolt is passed through each sliding elongated hole of the superposed mounting piece, and a nut ring is screwed into the extension. The parallel guide for an electric circular saw according to claim 6, wherein the parallel guide is configured to be freely tightened and loosened. 9. An upper edge (or a lower edge) of one of the two guides is projected from a horizontal position of an upper edge (or a lower edge) of the other guide. 9. The parallel guide for an electric circular saw according to claim 6, 7, or 8. 10. The parallel guide for an electric circular saw according to claim 1, wherein a scale is formed on the support bar.