JP2008221455A - Electric power tool with chip discharge mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable dust collecting circular saw which smoothes the discharge of chips, enhances dust collecting efficiency in a dust bag and a dust collector, and improves the work efficiency. <P>SOLUTION: Engaging sections of a dust nozzle 6, a saw cover 5 and a nozzle holder 7 are engaged with one another by spherical portions. The saw cover 5 and the nozzle holder 7 are provided with a circumferential groove portion 11. On the rear side a vertical groove portion 12 connected with the circumferential groove portion 11 is provided. The dust nozzle 6 includes three projections 13 so as to fit into the groove 12 having a width, thereby enabling the dust nozzle 6 to incline toward the rear side by rotation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electric power tool that collects chips generated during work such as cutting with a dust collecting hose such as a dust collector or a dust bag connected to the electric power tool.

  A portable circular saw will be described with reference to FIGS. 5, 6, and 7 as an example of a conventional electric tool.

  The portable circular saw has a main body 1 and a base 3 as shown in FIG. The main body 1 is provided so as to be rotatable about a rotation center 23 with respect to the base 3. A rotation adjusting knob 22 that engages with a hole 21a provided in a depth adjusting plate 21 fixed to the base 3 can fix the position of the main body 1 with respect to the base 3 at an arbitrary position of the hole 21a. When the portable circular saw is supplied with power, when the differential operator operates a switch, an electric motor (not shown) rotates, and the rotation is transmitted to the saw blade 2 to cut the material to be cut.

  As shown in FIG. 5, when the base 3 is slid forward (front) in FIG. 5 on a workpiece (not shown), the workpiece (not shown) is cut by the saw blade 2 protruding from the base 3. To do. When cutting the material to be cut, swarf that is a part of the material cut by the saw blade 2 is generated.

  As a mechanism for collecting dust, as shown in FIG. 5, a dust nozzle 6 is connected to the upper portion of the saw cover 5, and a dust collecting means which is a dust collecting hose 9 of a dust collector (not shown) is attached to the dust nozzle 6. There is something. While being sucked by a dust collector (not shown), the cut powder moves from the saw cover 5 to the dust nozzle 6 and is collected by the dust collector through the dust hose 9.

  In FIG. 6, a dust bag 10 is attached to the dust nozzle 6. In this case, the saw blade 2 applies the force of the swarf scattered toward the attachment axis direction X of the saw cover. The swarf enters the dust nozzle 6 from the saw cover 5 by its own splatter force. Thereafter, the dust is collected by entering the dust bag 10.

  The dust nozzle 6 shown in FIGS. 5 and 6 is provided so as to be rotatable in the circumferential direction with respect to a saw cover mounting axis X which is also a mounting shaft of the dust nozzle 6 along a circumferential groove provided in the saw cover 5. Thus, the user can rotate the dust collecting hose 9 and the dust bag 10 together with the dust nozzle 6 in an arbitrary direction when cutting with a portable circular saw.

  As shown in FIG. 5 or 6, the angle α between the shaft X of the attachment shaft of the saw cover 5 and the dust collecting hose 9 or the dust bag 10 and the attachment shaft Y is always constant and is about 45 degrees. There was something. Although not shown in the drawings, the attachment axis Y of the dust bag 10 or the dust collecting hose 9 is the same as the attachment axis X of the saw cover 5, and there are some that are 0 degrees.

  In the conventional structure, as shown in FIG. 6, when the dust bag 10 is mounted as the chip collecting means, the angle between the shaft X of the saw cover 5 mounting shaft and the dust collecting hose 9 or the dust bag 10 and the mounting shaft Y. α was about 45 degrees.

  As shown in FIG. 6, a portion 10 a in which chips inside the dust bag 10 can be stored is represented as a portion surrounded by a dotted line and the dust bag 10. As shown in FIG. 6, the cutting powder enters only 70% of the dust bag 10, so that the cutting powder cut by the saw blade 2 cannot be sufficiently accumulated in the dust bag 10. This is because the chips once stored in the dust bag 10 enter the saw cover 5 through the dust nozzle 6 from the dust bag 10 due to gravity applied in the vertical direction.

  For this reason, the cutting powder returns from the dust bag 10 into the saw cover 5 and accumulates in the saw cover 5, resulting in a decrease in workability.

  Further, as shown in FIG. 5, when the dust collecting hose 9 is used, the angle α between the dust collecting hose mounting shaft Y and the saw cover mounting shaft X needs to be maintained at about 45 degrees. This is because the dust collection hose 9 needs to be separated from the portable circular saw to some extent at about 45 degrees so that the dust collection hose 9 does not interfere with the cutting.

  Further, although not shown, there is a case where the attachment axis Y of the dust bag 10 or the dust collecting hose 9 is the same as the vertical axis X. In that case, when dust collection by the dust bag 10 was performed, the chips could hardly be stored. Further, when dust collection by the dust collection hose 9 is performed, the dust collection hose is an obstacle.

  Further, as shown in FIG. 7, the portable circular saw can rotate the main body 1 around the rotation fulcrum 23 and can adjust the protruding amount of the saw blade 2 from the base 3 to be small. In that case, the angle β between the vertical axis Z and the dust bag mounting axis Y would be an angle β. In this case, as shown in FIG. 7, the swarf once stored in the dust bag 10 enters the saw cover 6 through the dust nozzle 6 from the dust bag 10 due to the gravity applied in the vertical direction. The portion 10 a where the powder can be stored is smaller than that shown in FIG. 6, and more of the cut powder cannot be stored in the dust bag 10.

  An object of the present invention is to provide an electric tool capable of collecting a large amount of swarf inside a dust bag when the dust bag is attached.

  Moreover, it aims at providing the electric tool which can accelerate | stimulate that a swarf is guided from the dust nozzle 6 to the dust bag 10 or the dust collection hose 9 more.

  It is another object of the present invention to provide an electric tool that can be suitably used in either the dust bag 10 or the dust collection hose 9.

  In addition, when the electric tool has a main body and a base having a tip tool, and the main body is rotatable in the cutting direction with respect to the base, when the main body rotates with respect to the base, the vertical axis Z and It is an object of the present invention to provide an electric tool that does not reduce the amount of chips that can be stored in a dust collection bag when the angle with the dust bag mounting axis Y is small.

  The object is an electric tool having an electric motor, a tip tool driven by the electric motor, and a main body that supports the electric motor and the tip tool, wherein the main body is provided with a dust nozzle, The power tool is provided so as to be tiltable from the first position to the second position.

  According to the present invention, since the dust nozzle is inclined from the first position to the second position, it is possible to increase the amount of chips stored in the dust bag 10.

  In addition, since the dust nozzle 6 is rotatable with respect to the attachment axis X of the saw cover 5 that is also the attachment axis of the dust nozzle 6, the operator can place the dust bag 10 and the dust collecting hose 9 in desired positions in the attachment direction. It becomes possible to rotate with respect to the circumferential direction. As a result, workability can be improved.

  Further, since the rotation of the dust nozzle can be restricted, it is possible to prevent the dust nozzle from moving unexpectedly when the material to be cut is cut.

  Moreover, since rotation can be controlled by the inclination of the dust nozzle, it is possible to prevent the dust bag 10 from moving unexpectedly in a state where a large amount of chips can be stored.

  Further, the power tool is a saw blade that rotatably supports the tip tool, the main body has a saw cover that is shaped to cover a part of the outer periphery of the saw blade, and the dust nozzle is provided on the saw cover. When the angle from the direction to the dust bag mounting shaft is 0 degree, the operator can tilt the dust bag mounting shaft during dust collection, and a large amount of chips can be stored in the dust bag 10. it can. The dust hose 9 does not get in the way when cutting.

  In addition, since the direction of inclination from the first position to the second position is parallel to the side surface of the saw blade, the dust bag 10 or the dust collecting hose is disposed in the rear, which is the direction in which chips are scattered by cutting. Can be tilted. Thereby, it is possible to make it easy for the chips to enter the dust bag 10 or the dust collecting hose 9.

  When the dust bag 10 is used for collecting dust, the direction of inclination from the first position to the second position is substantially parallel to the side surface of the saw blade. By tilting the shaft from the Y first position to the second position Y ′, more dust can be stored in the dust bag 10.

  The power tool has a main body having a tip tool and a base, and the main body is rotatable in a cutting direction with respect to the base. Therefore, when the main body rotates with respect to the base, dust is generated from the vertical direction. As shown in FIG. 7, the angle between the bag mounting shaft and the bag mounting shaft is reduced from the angle α to the angle β. By tilting the dust nozzle, the angle between the vertical shaft and the dust bag mounting shaft is reduced. It is possible to increase the angle. Thereby, more chips can be stored in the dust bag 10.

  As shown in FIGS. 1 to 7, the direction that is the cutting direction is defined as the front (front) and the rear in the cutting direction is defined as the rear (rear) in all the drawings. In the drawing, the right side is the front (front) and the left side is the rear (rear). 1 to 3 and 5 to 7, the upper side is defined as upper (upper) and the lower side is defined as lower (lower). The direction connecting the front and the rear is the front-rear direction, and the direction connecting the upper and the lower is the vertical direction.

  Here, as shown in FIG. 2, the axis perpendicular to the AA sectional view is the attachment axis X of the saw cover 5.

  Further, as shown in FIG. 5, the attachment shaft of the dust collecting hose 9 is the attachment shaft Y. Alternatively, as shown in FIG. 6, the mounting shaft of the dust bag 10 or the dust collecting hose 9 is the mounting shaft Y. A state in which the attachment shaft of the dust bag 10 or the dust collecting hose 9 is inclined is defined as Y ′. Here, the first position of the attachment shaft of the dust bag 10 or the dust collecting hose 9 when the dust nozzle is not inclined is Y. The second position of the mounting shaft of the dust bag 10 or the dust collecting hose 9 when the dust nozzle 6 is inclined is Y ′.

  In addition, as shown in FIG. 7, when the vertical axis is not the same as the attachment axis X of the saw cover 5, the vertical axis is Z.

  In FIGS. 1 to 3, 5, and 6, X = Z.

  FIG. 1 is a portable dust collecting circular saw according to an embodiment of the present invention. The portable dust collecting circular saw has a base 3 and a main body 1 provided to be rotatable with respect to the base 3.

  The main body 1 includes an electric motor (not shown) built in the main body, a saw blade 2 rotatably attached to the lower portion of the main body 1 by the electric motor, a saw cover 5 having a shape that partially covers the outer periphery of the saw blade 2, 1 and a gear cover 4 that covers the side surface of the main body of the saw blade 2 above the base 3. The gear cover 4 is provided with a handle 14, and the handle 14 is provided with a switch 15. The saw cover 5 is provided with a dust nozzle 6. The dust nozzle 6 is provided on the saw cover 5 so as to communicate the inside of the saw cover and the outside of the saw cover. The dust nozzle 6 can discharge the chips 8 cut by the saw blade 2 to the outside of the saw cover 5 and can be connected to a dust collecting hose 9 such as a dust collector or a dust bag 10. Further, a safety cover 16 is provided as a part of the main body, and the safety cover 16 is provided so as to be rotatable about the saw blade shaft 7 of the saw blade 2 while substantially covering the saw blade 2.

  When power is supplied by a power supply device (not shown) and the operator operates the switch 15, the electric motor rotates. This rotation is transmitted to the saw blade shaft 7 by a rotation transmission mechanism (not shown), and drives the saw blade 2 provided on the saw blade shaft 7 so as not to rotate.

  As shown in FIG. 1, the main body 1 can be rotated by a rotation fulcrum 23 that rotatably supports the main body 1 and the base 3. The engagement between the depth adjustment plate 21 and the rotation adjustment knob 22 is released and the fixation is released, the rotation is made in the direction of arrow C, and the rotation adjustment knob 22 is moved to an arbitrary position of the elongated hole 21a of the depth adjustment plate 21. The amount of protrusion of the saw blade 2 from the base 3 can be adjusted by engaging and fixing (see FIG. 7 for the rotation state). FIG. 7 shows a state where the protruding amount of the saw blade 2 from the base 3 is the smallest.

  FIG. 1 shows a state in which the saw blade 2 protrudes to the largest extent. The main body 1 rotates about 20 degrees with respect to the cutting direction with respect to the base 3 in the state in which the saw blade 2 in FIG. 1 protrudes the largest and the state in which the saw blade 2 in FIG. It will be.

  Further, the main body 1 has a long hole (not shown) in the tilting plate 24 by the tilting plate 24 and the tilting adjustment knob 25. The engagement between the tilting adjustment knob 25 and the tilting plate 24 is released and the fixing is released. By moving the tilt adjustment knob 25 to an arbitrary position, and engaging and fixing it, it is possible to incline in a direction perpendicular to the front-rear direction and the vertical direction.

  The dust nozzle 6 will be described.

  As shown in FIG. 1, the dust collecting hose 9 or the attachment axis Y of the dust bag can be inclined.

  Accordingly, when the angle between the vertical axis and the dust bag mounting axis is 0 degree, the amount of chips stored in the dust bag 10 can be increased.

  Further, as shown in FIG. 1, when the attachment shaft of the dust bag 10 is inclined rearward, the angle between the attachment shaft of the dust bag 10 and the vertical axis becomes large, so that The amount of chips that can be stored in the bag 10 is increased.

  The dust collecting hose 9 is connected to the dust nozzle 6, and the chips 8 cut by the saw blade 2 are collected from the saw cover 5 through the dust nozzle 6, through the dust collecting hose, and the like by a dust collector (not shown). Further, in the case of a dust collection bag (not shown), by being directly connected to the dust nozzle 6, the chips 8 are collected by entering the dust bag by the force scattered by the saw blade.

  Details of the tilt of FIG. 1 are shown in FIG. As shown in FIG. 2, the engaging part of the dust nozzle 6 with the saw cover 5 is formed in a spherical shape. The dust nozzle 6 engages with the inside of the saw cover 5. Further, a dust nozzle cover 6a is provided in the vicinity of the engaging portion between the saw cover 5 and the dust nozzle 6 so as to cover the engaging portion in order to prevent the chips 8 from coming out of the saw cover 5 or the dust cover 6. Yes.

  As shown in FIG. 2, the saw cover 5 is provided with a circumferential groove 11 over the entire circumference. A vertical groove 12 is provided at the rear portion of the saw cover 5. The vertical groove 12 is formed with a certain width in the vertical direction on the inner surface of the saw cover.

  4 is a cross-sectional view taken along the line A-A in FIG. 2. As shown in FIG. 4, convex portions 13 b 1, 13 b 2, and 13 a that fit into the circumferential grooves 11 of the saw cover 5 are provided on the dust nozzle 6. ing. As shown in FIG. 4, convex portions are provided at three positions 13 b 1 at a position of 0 ° of the dust nozzle 6, 13 b 2 at a position of 180 degrees, and 13 a at a position of 270 degrees. A convex portion is not provided at a position of 90 degrees of the dust nozzle 6.

  When the operator applies an external force to the dust nozzle 6 in the direction of the arrow B in FIG. 2, the dust nozzle can be inclined.

  In the convex portions 13b1, 13b2, and 13a, the dust nozzle 6 can be tilted with 13b1 and 13b2 serving as two support shafts. That is, as shown in FIG. 2, the convex portions 13b1 and 13b2 are engaged with the portion where the circumferential groove portion 11 is provided over the entire circumference, the 13a is engaged with the vertical groove portion 12, and the 13a The dust nozzle 6 can be inclined by moving the inside of the vertical groove 12. Further, the upper and lower limits of inclination are reached by abutting against the upper and lower ends of the vertical groove 12.

  Two protrusions 15 are provided in the vertical groove 12. This is because when the operator applies an external force in the B direction, the convex portion 15 can be exceeded. As a result, it is possible to prevent the inclination from being restored unexpectedly. That is, even if some external force is applied to the dust nozzle 6 unexpectedly, the external force cannot be restored unless the external force exceeds the convex portion 15. In addition, the user must give an external force to cross the protrusion 15 and the user can easily determine that the protrusion 15 has been exceeded. Has improved.

  In this invention, since the convex part 13a is engaging with the vertical groove part 12, it cannot rotate when the dust nozzle 6 inclines. This is because the vertical groove 12 is provided only on the rear side. Therefore, even if a force is applied to the dust bag 10 or the dust nozzle 9 unexpectedly, the saw cover 5 cannot be rotated with the attachment shaft X as a substantially rotational axis.

  FIG. 3 shows the dust nozzle 6 rotated 180 degrees from FIG. As described above, the dust nozzle 6 can rotate with respect to the vertical axis X represented by the upper and lower sides in FIGS. As a result, the dust nozzle 6 can be rotated with respect to the vertical axis X in the direction desired by the operator.

  Further, in the portable dust collecting circular saw of this embodiment, the saw blade 2 can adjust the amount of protrusion from the base 3, and when the amount of protrusion of the saw blade is small, the main body rotates about 20 degrees with respect to the base. (See FIG. 7).

  Accordingly, the angle β between the attachment axis of the dust bag 10 to which the dust bag 10 or the dust collector is attached and the vertical axis of the dust collection hose 9 and the axis in the direction perpendicular to the AA cross section. And an angle α between the dust bag 10 and the mounting shaft of the dust bag 10.

  This occurs because the main body 1 is tilted from the vertical direction, which is the vertical direction, so that the vertical direction is essentially the same as the direction perpendicular to the AA cross section.

  Thereby, as shown in FIG. 7, the quantity of the chip 8 which can be stored in the dust bag 10 will decrease.

  The angle β between the reduced vertical axis and the dust bag 10 mounting direction axis is increased by inclining the dust bag 10 and its mounting axis Y backward as shown in FIG. Is possible. As described above, if the dust nozzle 6 is tilted backward by the angle β between the vertical axis and the dust bag 10 and the mounting direction axis, the vertical axis Z and the dust bag 10 This is because the angle with respect to the axis Y in the mounting direction becomes larger. Thereby, it is possible to increase the amount of the chips 8 that can be stored in the dust bag 10.

  In addition, the dust nozzle 6 in the portable dust collecting circular saw is located above the saw cover 5, and the dust bag 10 and its mounting shaft Y are inclined in the same direction as the dust scattering direction. Since it is possible to incline by rotation toward the rear, which is the direction in which 8 scatters, the dust collection efficiency can be further increased.

  The dust-collecting portable circular saw can be tilted with respect to the saw blade shaft 7 with respect to the base 3 by the tilting plate 24 and the tilting adjustment knob 25 as described above. 2 in the direction of 90 degrees with B in FIG. 2 and 90 degrees in FIG. 3, and tilting the dust nozzle 6, more storage of the chips 8 into the dust bag is made into the dust bag. Is possible.

  Further, the worker can suitably position the mounting axis Y of the dust collecting hose 9 and the vertical axis. That is, when the main body 1 is rotated from the base 3 around the rotation center 23, the angle between the attachment shaft of the dust collecting hose 9 and the vertical axis can be adjusted to about 45 degrees.

  In the present embodiment, the vertical groove portion is provided only on the rear side. However, even if it is provided over the entire inner periphery of the saw cover 5, it is good for achieving the same effect. In that case, it is possible to incline not only backward but also in the entire circumferential direction.

  In the present embodiment, the portable circular saw is used as an electric tool. However, if a dust-collecting dust nozzle is used, the use of a grinder or a cutter also has the same effect. It ’s good. In that case, it is good for producing the same effect even when a saw cover is provided, a dust nozzle 6 is provided on the upper portion of the saw cover, and the main body is rotatable with respect to the base.

  In this embodiment, the angle between the attachment shaft of the saw cover and the attachment shaft of the dust bag 10 or the dust collecting hose 9 is about 45 degrees. Even if the angle with respect to the mounting shaft is 0 degree and is substantially coaxial, it is good for producing the same effect.

  In the present embodiment, the dust nozzle 6 is inclined by the convex portions 13b1, 13b2, and 13a fitted in the circumferential groove 11 of the saw cover 5 on the circumference. It is good because it has the same effect. For example, in the present embodiment, as shown in FIG. 4, the convex portion is provided on the dust nozzle at 0 degrees, 180 degrees, and 270 degrees, but the position may be any. For example, even if the saw cover 5 has a convex portion and the dust nozzle has a vertical groove, the same effect is obtained.

  Further, in this embodiment, a base that is rotatably connected to the main body, has a bottom surface that can slide on the upper surface of the material to be cut during work, and can adjust the protruding amount of the saw blade from the bottom surface by the rotation. However, as long as the protruding amount of the saw blade can be adjusted and connected to the main body so as to be rotatable, a configuration without a base is good for achieving the same effect.

  FIG. 8 shows a cross-sectional view of the main part of the second embodiment. FIG. 8 is a cross-sectional view of the vicinity of the dust nozzle 6 and the saw cover 5 of the second embodiment. A fitting member 100 is fitted in the groove 11.

  FIG. 9 is a cross-sectional view taken along the line A′-A ′ of FIG. 8. A fitting member 100 that is substantially fitted into the portion of the groove 11 from the 0 degree position to the 180 degree position is provided. Note that the fitting member 100 is configured to be provided between the convex portion 13b1 and the convex portion 13b2. In addition, the fitting member 100 is formed of a metal wire having an O-shaped cross section, and the contact with the groove portion 11 is a line contact so that the resistance when the fitting member 100 slides is reduced.

  When the dust nozzle 6 rotates, the fitting member 100 slides in the groove portion 11 by coming into contact with the convex portion 13b1 or the convex portion 13b2.

  By adopting such a configuration, since the fitting member 100A suppresses the chips 8 from entering the groove 11, the dust nozzle 6 is rotatable and tilted to a predetermined position as in the above-described embodiment. It is possible to suppress the dustnosul 6 from becoming difficult to rotate while adopting a possible configuration.

  FIG. 10 shows a cross-sectional view of the main part of the third embodiment. In addition to the fitting member 100 of FIG. 9, the fitting member 100B is provided at a position from 180 degrees to 270 degrees of the groove 11, and the fitting member 100A is provided at a position from 270 degrees to 360 degrees of the groove portion 11. Yes. The fitting member 100B is provided between the convex portion 13B2 and the convex portion 13a, and the fitting member 100A is provided between the convex portion 13a and the convex portion 13b1.

  By setting it as such a structure, it can suppress that the chip 8 enters into the groove part 11 further than the Example shown in FIG.

  In the embodiment of the present invention, the fitting member 100 is provided between the convex portions 13b1 and 13b2, the fitting member 100B is provided between the convex portions 13b2 and 13a, and the fitting member 100A is provided with the convex portion 13a. Although it was set as the structure provided between the convex parts 13b1, the structure provided between the convex parts may be sufficient. Moreover, even if it is any one of the fitting members 100, 100A, 100B, the chip 8 is prevented from entering the groove portion 11 as in the above embodiment, and the rotational performance of the dust nozzle 6 is not reduced. It is something that can be done.

  Further, the saw cover 5 may be provided with a convex portion and the dust nozzle 6 may be provided with a groove portion where the convex portion is located. In such a configuration, a fitting member is provided in the groove portion of the dust nozzle 6. Then, similarly to the above-described embodiment, it is possible to suppress the chips 8 from entering the groove portion 11 and to prevent the rotation of the dust nozzle 6 from being lowered.

It is a front view of the portable dust collection circular saw which shows one Example of this invention. It is sectional drawing of the dust nozzle and saw cover vicinity of FIG. It is a figure of the state which rotated the dust nozzle of FIG. 2 180 degrees by making X into a rotating shaft. It is sectional drawing of the portable dust collection circular saw which shows the AA cross section of FIG. It is a front view of the portable circular saw which shows one Example of the past. It is a front view of the portable circular saw which shows one Example of the past. In the portable circular saw of FIG. 6, it is a figure of the state which rotated the main body centering | focusing on the rotation fulcrum. It is sectional drawing of the dust nozzle and saw cover vicinity which comprise the other Example. It is sectional drawing of the portable dust collection circular saw which shows the A'-A 'cross section of FIG. It is sectional drawing of the portable dust collection circular saw which comprises another Example.

Explanation of symbols

  1 is a main body, 2 is a saw blade, 3 is a base, 4 is a gear cover, 5 is a saw cover, 6 is a dust nozzle, 7 is a saw blade shaft, 8 is cutting dust, 9 is a dust collecting hose, 10 is a dust back, 11 is Circumferential groove portion, 12 is a vertical groove portion, 13a and 13b1 and 13b2 are convex portions, 21 is a depth adjustment plate, 22 is a rotation adjustment knob, 23 is a rotation center, X is a shaft for attaching a saw cover, and Y is dust A bag mounting shaft or a dust collecting hose mounting shaft, Z is a vertical shaft, and 100 is a fitting member.

Claims (8)

An electric motor,
A tip tool driven by the electric motor;
An electric tool having a main body supporting the electric motor and the tip tool,
The main body is provided with a dust nozzle,
The dust tool is provided so as to be tiltable from a first position to a second position.   The electric tool according to claim 1, wherein the dust nozzle is rotatable with respect to an attachment shaft of the dust nozzle.   The electric tool according to claim 2, wherein the rotation of the dust nozzle is regulated by the inclination of the dust nozzle.   The tip tool is a saw blade that is rotatably supported, the main body has a saw cover that covers a part of the saw blade, and the dust nozzle communicates the inside and outside of the saw cover. The power tool according to any one of claims 1 to 3, wherein the power tool is provided on the saw cover.   The power tool according to claim 4, wherein the direction of inclination of the dust nozzle is substantially parallel to a side surface of the saw blade.   It has a base that is rotatably connected to the main body, has a bottom surface that can slide on the top surface of the material to be cut during work, and can adjust the protruding amount of the saw blade from the bottom surface by the rotation. The power tool according to claim 4 or claim 5.   When the main body is provided with a circumferential groove, the dust nozzle is provided with a convex portion that fits into the groove, and a fitting member is fitted in the groove, and the dust nozzle rotates. The power tool according to any one of claims 1 to 6, wherein the convex portion and the fitting member slide in the groove portion.   The power tool according to claim 7, wherein a plurality of the convex portions are provided, and the fitting member is provided between at least two convex portions.

Images