JP2019147241A - Portable cutter - Google Patents

Abstract

To enhance further usability of a hook for hooking, in view of the facts that in cutting operation in a high place, a hook of a cutter can be hooked to a foothold or a handrail at non-use time, but due to that a conventional hook is provided at a lateral part of a fixing cover or a lateral part of a handle part, it is required to add improvements to the usability and operability.SOLUTION: A hanging hook 50 is provided in the front part of a fixing cover 24 or ahead of the front part. It is possible to hook a hook bar 51 taken out to a use position by moving in a posture of gripping a handle part 23 as it is in cutting operation, and in this respect, the usability of the hanging hook 50 can be improved.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a portable cutting machine that performs a cutting process by an operator holding and moving it.

  The following patent document discloses a technique for providing a hook for hooking this type of cutting machine to another part when not in use. Patent Document 1 discloses a configuration in which a hook is provided on a side portion of an electric motor as a drive source, and Patent Document 2 discloses a configuration in which a hook is provided on a side portion of a handle portion that is gripped by a user. ing. For example, the cutting machine can be hung by hooking the hook on a scaffolding, a handrail or the like of the work place.

JP 2006-326753 A JP2015-178154A

  However, the conventional hooks described above need to be further improved in terms of ease of use such as operability when suspended and compactness when not used.

  An object of the present invention is to further improve the usability of a hook for hanging a cutting machine to be hung from another part.

  The above problems are solved by the following inventions. 1st invention is a portable cutting machine which cuts the cutting tool which cuts the cutting tool which uses an electric motor as a drive source in a cutting material. In 1st invention, it has the structure provided with the hook for suspension in the front of the fixed cover which covers the circumference | surroundings of a cutting tool.

  According to the first invention, since the hook is provided in front of the fixed cover, it is easy to move the portable cutting machine while holding the handle portion during work and hook the hook to another part. Thus, the usability of the hook can be further improved. As a position where the hook is provided, the front of the fixed cover includes a configuration in which the hook is provided in the front portion of the fixed cover, and a configuration in which the hook is provided in a portion spaced forward in the cutting progress direction with respect to the front portion of the fixed cover. .

  According to a second aspect of the present invention, in the first aspect of the present invention, the lower surface includes a base to be brought into contact with the cutting material, and a cutting machine body supported on the upper surface of the base. The cutting machine body includes an electric motor and a cutting tool. The portable cutting machine is configured to project the cutting tool to the lower surface side of the base and cut it into the cutting material. In the second invention, the cutting machine main body is supported on the upper surface side of the base via the front vertical swing support portion so as to be swingable up and down, and the amount of protrusion of the cutting tool to the lower surface side of the base is changed. The configuration is such that a hook is provided in the vicinity of the vertical swing support portion.

  According to the second aspect of the present invention, the hook is easily hooked to another part by being provided in the vicinity of the vertical swing support part at the front part, and the usability of the hook can be further improved in this respect.

  A third aspect of the invention is the portable cutting machine according to the second aspect of the invention, wherein the cutting machine main body is provided with a support arm of a vertically swinging support part at the front part and a hook is provided on the upper surface of the support arm.

  According to the third aspect of the invention, the hook can be provided by effectively utilizing the empty space on the upper surface side of the support arm, and in this respect, the compactness of the hook can be enhanced.

  A fourth invention is the portable cutting machine according to the third invention, wherein the hook is provided so that the position can be changed, and the range in which the hook can be changed is restricted to the upper surface side of the base.

  According to the fourth invention, the hook is prevented from interfering with the cutting material or the cutting tool, and the workability of the portable cutting machine can be prevented from being impaired.

  A fifth aspect of the present invention is the portable cutting machine according to the fourth aspect of the present invention, wherein the hook is configured to be capable of changing the position in the front-rear direction by rotating around the horizontal axis.

  According to the fifth aspect of the present invention, the hook can be rotated around the horizontal axis of the left and right side, taken out to the front use position, for example, and conversely stored in the rear storage position. can do.

  A sixth aspect of the present invention is the portable cutting machine according to the fourth aspect of the present invention, wherein the hook is configured to be rotatable about the vertical axis in the tangential direction with respect to the periphery of the fixed cover so that the position can be changed to the left and right.

  According to the sixth aspect of the present invention, the hook can be rotated around the vertical axis of the vertical axis and taken out, for example, to the right use position, and conversely stored in the left storage position. In this respect, the use of the hook is improved. be able to.

  A seventh invention is a portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material. In 7th invention, the hook for suspension is provided ahead of the fixed cover which covers the circumference | surroundings of a blade tool. In the seventh invention, the hook can be rotated around the vertical axis in the tangential direction with respect to the periphery of the fixed cover to change the position left and right, and can be changed in the vertical direction by being displaced in the vertical axis direction. It has become.

  According to the seventh invention, the hook can also be displaced in the vertical axis direction and taken out, for example, to the upper use position, and conversely stored in the lower storage position. It can be made even better.

  In an eighth aspect based on the seventh aspect, the hook can be repositioned upward in the vertical axis direction and taken out to the use position, and the hook can be changed in position in the vertical axis direction and stored in the storage position. Portable cutting machine.

  According to the eighth invention, by setting the upper side in the vertical vertical axis direction as the use position, a position that can be easily hooked to another part can be set as the use position of the hook, and the lower side in the vertical axis direction is the storage position. By doing so, the hook can be stored compactly.

  A ninth invention is a portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material. A portable cutting machine according to a ninth aspect includes a handle portion that is held by a user. In 9th invention, the hook for suspension is provided in the side part on the opposite side to a blade tool of a handle | steering-wheel part. The hook is configured to include a hook bar having a support portion extending forward and a hook portion that is folded back and extended rearward from the front side of the support portion.

  According to the ninth invention, since the hook bar is provided in a state of extending forward from the side portion of the handle portion, the hook bar can be attached to the scaffolding or the workbench without changing the posture while holding the posture at the time of work. The portable cutting machine can be hung by being hooked on the end, and in this respect, the hangability of the hook (handleability during hanging) can be enhanced.

  A tenth aspect of the invention is a portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material. A portable cutting machine according to a tenth aspect of the invention includes a hanging hook at the front portion of the electric motor. The hook includes a hook bar having a support portion extending upward and a hook portion that is folded downward from the upper side of the support portion.

  According to the tenth invention, since the hook bar is provided so as to extend upward from the front part of the electric motor, the hook bar can be attached to the scaffolding or the workbench without having to hold it in the posture held during the work. The portable cutting machine can be hung by being hooked on the end, and in this respect, the hanging property of the hook can be enhanced.

  An eleventh aspect of the present invention is a portable cutting machine that performs a cutting process by cutting a cutting tool with an electric motor as a drive source into a cutting material. According to an eleventh aspect of the present invention, a portable cutting machine includes a hanging hook on an upper portion of an electric motor. The hook includes a hook bar having a support portion extending obliquely downward and forward and a hook portion extending obliquely upward and rearward from the front side of the support portion.

  According to the eleventh aspect of the invention, since the hook bar is provided in a state extending diagonally forward and downward from the upper portion of the electric motor, the hook bar can be attached to the end of the scaffolding or the workbench without having to hold it in the posture held during the work. The portable cutting machine can be suspended by being hooked on the portion, and the suspendability of the hook can be enhanced in this respect.

  A twelfth aspect of the invention is a portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material. A portable cutting machine according to a twelfth aspect of the present invention includes a handle portion that is held by a user, and includes a hook for hanging at the rear portion of the handle portion. The hook includes a hook bar having a support portion that extends in a direction away from the cutting tool and a hook portion that is folded back from the distal end side of the support portion and extends in a direction of approaching the cutting tool.

  According to the twelfth invention, since the hook bar is provided at the rear part of the handle part, the hook bar can be used as a scaffold or a work table without having to hold it in the posture held at the time of operation when it is suspended from a relatively low part. The portable cutting machine can be hung by being hooked on the end of the hook, and the hangability of the hook can be enhanced in this respect.

  A thirteenth aspect of the present invention is a portable cutting machine that performs a cutting process by cutting a cutting tool with an electric motor as a drive source into a cutting material. A portable cutting machine according to a thirteenth invention has a hook bar for hanging. The hook bar has a J shape having a support portion, an intermediate portion, and a hook portion, and the center of gravity of the portable cutting machine is located on a virtual plane including the support portion, the intermediate portion, and the hook portion, and The posture in which the hooking portion extends toward the center of gravity side is configured to be the use position of the hook bar.

  According to the thirteenth invention, the hook bar hooking portion extends toward the center of gravity, so that when a suitable hooking target portion (for example, a horizontal column) is found between the support portion and the hooking portion. If not, the portable cutting machine can be suspended by hooking the hook bar in a state where the tip of the hooking portion is abutted against the upper surface of the work table or the like. Also in this case, since the center of gravity of the portable cutting machine is located below the abutting part of the work table in the vertical direction, the portable cutting machine can be suspended in a stable posture.

It is a right view of the portable cutting machine which concerns on 1st Embodiment. It is the front view which looked at the portable cutting machine which concerns on 1st Embodiment from the arrow (II) direction in FIG. It is the top view which looked at the portable cutting machine which concerns on 1st Embodiment from the arrow (III) direction in FIG. It is the left view which looked at the portable cutting machine which concerns on 1st Embodiment from the arrow (IV) direction in FIG. This figure has shown the state which stored the hook in the storing position. It is a left view of the portable cutting machine which concerns on 1st Embodiment. This figure has shown the state which took out the hook to the use position. It is a left view of the portable cutting machine which concerns on 1st Embodiment. This figure has shown the state which removed the left side of the handle housing of a right-and-left half structure. It is the (VII)-(VII) sectional view taken on the line of FIG. 6 of the portable cutting machine which concerns on 1st Embodiment. It is the (VIII)-(VIII) sectional view taken on the line of FIG. 6 of the portable cutting machine which concerns on 1st Embodiment. It is a left view of a handle part. This figure has shown the state which removed the left side of the handle housing of a right-and-left half structure. This figure has shown the normal state in which the coupling | bond part of a hanging part has not received damage. It is a left view of a handle part. This figure has shown the state which removed the left side of the handle housing of a right-and-left half structure. This figure has shown the state which the alerting | reporting member moved because the coupling | bond part of the suspension part received damage. It is a right view of the portable cutting machine which concerns on 2nd Embodiment. This figure shows a state where the hook is located at the storage position. It is the front view which looked at the portable cutting machine which concerns on 2nd Embodiment from the arrow (XII) direction in FIG. It is the top view which looked at the portable cutting machine which concerns on 2nd Embodiment from the arrow (XIII) direction in FIG. It is the left view which looked at the portable cutting machine which concerns on 2nd Embodiment from the arrow (XIV) direction in FIG. It is a top view of the portable cutting machine concerning a 2nd embodiment. This figure has shown the state which has located the hook in the front use position. It is a front view of the portable cutting machine which concerns on 2nd Embodiment. This figure has shown the state which has located the hook in the front use position. It is a top view of the portable cutting machine concerning a 2nd embodiment. This figure has shown the state which has located the hook in the side use position. It is a front view of the portable cutting machine which concerns on 2nd Embodiment. This figure has shown the state which has located the hook in the side use position. It is the rear view which looked at the hanging part which concerns on 2nd Embodiment from the arrow (XIX) direction in FIG. FIG. 20 is a cross-sectional view taken along line (XX)-(XX) in FIG. 19 of the hanging portion according to the second embodiment. This figure shows a normal state in which the joint is not damaged. It is a perspective view of the suspension part of 2nd Embodiment. This figure shows a normal state in which the joint is not damaged. It is a longitudinal cross-sectional view of the hanging part which concerns on 2nd Embodiment. This figure has shown the state which the alerting | reporting member moved because the coupling | bond part received damage. It is a perspective view of the hanging part which concerns on 2nd Embodiment. This figure has shown the state which the alerting | reporting member moved because the coupling | bond part received damage. It is a perspective view of the alerting | reporting member which concerns on the suspension part of 2nd Embodiment. It is a right view of the portable cutting machine which concerns on 3rd Embodiment. This figure has shown the state which took out the hook to the front position. It is the front view which looked at the portable cutting machine which concerns on 3rd Embodiment from the arrow (XXVI) direction in FIG. It is a right view of the portable cutting machine which concerns on 3rd Embodiment. This figure has shown the state which stored the hook in the storing position. It is the front view which looked at the portable cutting machine which concerns on 3rd Embodiment from the arrow (XXVIII) direction in FIG. It is a left view of the portable cutting machine which concerns on 4th Embodiment. This figure has shown the state which stored the hook in the storing position. It is the front view which looked at the portable cutting machine which concerns on 4th Embodiment from the arrow (XXX) direction in FIG. This figure has shown the state which stored the hook in the storing position. It is a left view of the portable cutting machine which concerns on 4th Embodiment. This figure has shown the state which took out the hook to the use position. It is the front view which looked at the portable cutting machine which concerns on 4th Embodiment from the arrow (XXXII) direction in FIG. This figure has shown the state which took out the hook to the use position. It is a side view which shows the state which suspended the portable cutting machine which concerns on 4th Embodiment on the work table using the hook. It is a left view of the portable cutting machine which concerns on 5th Embodiment. This figure has shown the state which stored the hook in the storing position. It is the front view which looked at the portable cutting machine which concerns on 5th Embodiment from the arrow (XXXV) direction in FIG. This figure has shown the state which stored the hook in the storing position. It is a left view of the portable cutting machine which concerns on 5th Embodiment. This figure has shown the state which took out the hook to the use position. It is the front view which looked at the portable cutting machine which concerns on 5th Embodiment from the arrow (XXXVII) direction in FIG. This figure has shown the state which took out the hook to the use position. It is a left view of the portable cutting machine which concerns on 6th Embodiment. This figure has shown the state which stored the hook in the storing position. It is the front view which looked at the portable cutting machine which concerns on 6th Embodiment from the arrow (XXXIX) direction in FIG. This figure has shown the state which stored the hook in the storing position. It is a left view of the portable cutting machine which concerns on 6th Embodiment. This figure has shown the state which took out the hook to the use position. It is the front view which looked at the portable cutting machine which concerns on 6th Embodiment from the arrow (XXXXI) direction in FIG. This figure has shown the state which took out the hook to the use position. It is a left view of the portable cutting machine which concerns on 7th Embodiment. This figure has shown the state which stored the hook in the storing position. It is the rear view which looked at the portable cutting machine which concerns on 7th Embodiment from the arrow (XXXXIII) direction in FIG. This figure has shown the state which stored the hook in the storing position. It is a left view of the portable cutting machine which concerns on 7th Embodiment. This figure has shown the state which took out the hook to the use position. It is the rear view which looked at the portable cutting machine which concerns on 7th Embodiment from the arrow (XXXXV) direction in FIG. This figure has shown the state which took out the hook to the use position.

  Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 10 show a portable cutting machine 1 according to a first embodiment of the present invention. A portable cutting machine 1 according to the first embodiment is a metalworking hand-held cutting machine called a chip saw cutter, which includes a base 10 that comes into contact with a cutting material W, and a cutting machine body supported on the upper surface side of the base 10. 20 is provided. The base 10 has a rectangular flat plate shape and abuts on the upper surface of the cutting material W.

  As shown in FIGS. 1 to 4, the cutting machine main body 20 includes an electric motor 21 as a drive source, a circular rotary blade 22, and a loop-shaped handle portion 23. A tip saw for cutting steel material is used for the rotary blade 22. The entire upper half of the rotary blade 22 (the range on the upper surface side of the base 10) is entirely covered with a dust-proof fixed cover 24. The fixed cover 24 can be removed from the periphery of the rotary blade 22 by loosening the fixing screw 24a. An arrow 24 b indicating the rotation direction of the rotary blade 22 is displayed on the right side surface of the fixed cover 24. At the rear of the fixed cover 24, a lid portion 24c for discharging the collected dust is provided.

  As shown in FIG. 8, the electric motor 21 is coupled to the left side surface of the fixed cover 24 via a reduction gear unit 25. A support arm portion 25b is integrally provided at a front portion of the gear housing 25a having a substantially cylindrical shape of the reduction gear portion 25. The support arm portion 25b extends forward. The front portion of the support arm portion 25b is coupled to the upper surface of the base 10 via the vertical swing support shaft 26a. The cutting machine body 20 is supported on the upper surface of the front portion of the base 10 so as to be swingable up and down via a vertical swing support shaft 26a. The support arm portion 25b and the vertical swing support shaft 26a constitute a vertical swing support portion 26 for supporting the cutting machine body 20 so as to be swingable up and down with respect to the base 10.

  The lower side of the rotary blade 22 protrudes to the lower surface side through the window portion of the base 10. The periphery of the lower side of the rotary blade 22 protruding to the lower surface side of the base 10 is covered with the movable cover 12. The movable cover 12 is provided so as to be openable and closable along the periphery of the rotary blade 22. As shown in the figure, the movable cover 12 is relatively opened by moving the portable cutting machine 1 to the cutting progress side with the front end of the movable cover 12 in contact with the cutting material W.

  The portion protruding to the lower surface side of the base 10 is cut into the cutting material W, and cutting processing is performed. The protruding portion of the rotary blade 22 toward the lower surface side of the base 10 corresponds to the cutting depth of the rotary blade 22 with respect to the cutting material W. The cutting depth of the rotary blade 22 with respect to the cutting material W can be adjusted by swinging the cutting machine body 20 up and down around the vertical swing support shaft 26a.

  As shown in FIGS. 3 and 8, the rear side of the fixed cover 24 is coupled to the upper surface of the rear portion of the base 10 through a depth guide 27. A fixing screw shaft 29 coupled to the left side portion of the fixing cover 24 is inserted into the guide groove of the depth guide 27. By loosening the fixing nut 29a with respect to the fixing screw shaft 29 by loosening the fixing lever 28, the cutting machine body 20 is swung up and down around the vertically swinging support shaft 26a to adjust the cutting depth. Can do.

  A loop-shaped handle portion 23 is provided above the reduction gear portion 25. A trigger type switch lever 38 is provided on the inner peripheral side of the handle portion 23. When the switch lever 38 is pulled upward with a fingertip, the main switch 39 is turned on. When the main switch 39 is turned on, the electric motor 21 is activated. When the pulling operation of the switch lever 38 is released, the main switch 39 is turned off and the electric motor 21 is stopped.

  A front portion 23a of the handle portion 23 is coupled to an upper portion of the gear housing 25a. The front portion 23a of the handle portion 23 stands upward from the upper portion of the gear housing 25a. A grip portion 23b extends obliquely downward from the upper portion of the front portion 23a. The rear portion of the grip portion 23 b is coupled to the rear surface side of the gear housing 25 a via the battery attachment portion 30. One battery pack 31 is attached to the lower surface side of the battery attachment portion 30. The electric motor 21 as a drive source operates using the battery pack 31 as a power source. The battery pack 31 can be repeatedly used by being removed from the battery mounting portion 30 and being charged. As shown by the white arrow in FIG. 3, the battery pack 31 can be attached by sliding to the right with respect to the battery attachment portion 30 and can be removed by sliding to the left.

  The illuminator 11 is provided in front of the reduction gear portion 25 and below the front portion 23 a of the handle portion 23. The cutting part (the cutting part of the rotary blade 22 with respect to the cutting material W) is brightly illuminated by the illumination tool 11, and the convenience of the cutting work in a dark place or the like is achieved.

  As shown in FIGS. 7 and 8, the motor housing 21 a of the electric motor 21 is screwed to the gear housing 25 a of the reduction gear portion 25. A brushless motor is used for the electric motor 21. An annular stator 21b is fixed along the inner peripheral side of the motor housing 21a, and a rotor 21c is rotatably supported on the inner peripheral side of the stator 21b. A cooling fan 21e is attached to the motor shaft 21d coupled to the rotor 21c. When the cooling fan 21e is rotated by the activation of the electric motor 21, the outside air is introduced from the intake hole 21f provided in the rear portion of the motor housing 21a. The outside air introduced from the intake hole 21f flows to the right in the motor housing 21a, thereby cooling the stator 21b, the rotor 21c, and the like. The right end portion of the motor shaft 21 d is meshed with the gear train of the reduction gear portion 25.

  As shown in FIG. 7, the rotational output of the electric motor 21 is transmitted to the output shaft 32 through a two-stage reduction gear train. The output shaft 32 enters the inside of the fixed cover 24. In the fixed cover 24, the rotary blade 22 is attached to the right end portion of the output shaft 32. The rotary blade 22 is sandwiched between the two mounting flanges 33 and 34 and is attached to the left end portion of the output shaft 32 in this sandwiched state by tightening the blade fixing screw 13.

  As shown in FIG. 8, a controller housing portion 35 is provided on the rear side of the electric motor 21 and between the battery mounting portion 30. The controller housing portion 35 houses a controller 36 for mainly controlling the operation of the electric motor 21. The controller 36 is formed by housing a control board in a rectangular shallow case and resin-molding, and is housed in a posture inclined in a direction in which the front side is upward as shown by a broken line in FIGS. The motor cooling air introduced into the motor housing 21a by the cooling fan 21e of the electric motor 21 is also introduced into the controller housing portion 35 so that the controller 36 is cooled.

  The portable cutting machine 1 according to the first embodiment has a coupling portion for coupling a hanging tool 41 such as a tether strap for hanging the portable cutting machine 1 on a scaffold or a handrail at a work site, for example. 40 and a hanging hook 50 for directly hooking on a scaffold or a handrail. The coupling portion 40 is a rear portion of the handle portion 23 and is provided in the vicinity of the coupling portion between the grip portion 23 b and the battery attachment portion 30. Details of the connecting portion 40 according to the first embodiment are shown in FIGS. 9 and 10. The coupling portion 40 includes a generally triangular coupling hole 42. The coupling hole 42 penetrates the rear side of the grip portion 23b from side to side.

  As shown in FIGS. 2, 3, 9, and 10, the handle portion 23 has a structure in which a left handle housing 23 </ b> L and a right handle housing 23 </ b> R having left and right halved structures are coupled to each other. The left handle housing 23L and the right handle housing 23R are coupled to each other by a total of four screwing portions 37. In the figure, the reference J is attached to the butted portion of the left handle housing 23L and the right handle housing 23R. 9 and 10, the left handle housing 23L is omitted. The coupling hole 42 passes through the left and right handle housings 23L and 23R.

  As shown in FIG. 9, a wall portion 42 a is provided around the coupling hole 42. The inner peripheral side of the wall portion 42 a is a coupling hole 42. One screwing portion 37 is disposed adjacent to the coupling hole 42. The notification member 43 is mounted across both the wall portion 42 a of the coupling hole 42 and the boss portion of the screwing portion 37. In the present embodiment, the notification member 43 is an annular metal wire. The notification member 43 is incorporated in a state where the wall portion 42a of the coupling hole 42 and the boss portion of the screwing portion 37 are positioned on the inner peripheral side thereof. The notification member 43 is incorporated in the handle portion 23 at the assembly stage of the portable cutting machine 1.

  As shown in FIG. 9, the suspending tool 41 such as a strap is coupled to the coupling portion 40 so as to be inserted into the coupling hole 42 and wound around the end portion 23 c of the handle portion 23. For this reason, the suspending tool 41 is inserted into the coupling hole 42 and coupled to the coupling part 40 in a state of being inserted also into the inner peripheral side of the notification member 43.

  According to the connecting portion 40, an external force is applied to the end portion 23c of the handle portion 23 by using the hanging tool 41 for many years as shown in FIG. 10, and as a result, the end portion 23c is damaged and broken. Then, the hanging tool 41 is not inserted into the coupling hole 42. However, as described above, the hanging tool 41 is also inserted through the inner peripheral side of the notification member 43. For this reason, even if the end 23c of the handle portion 23 is broken and the suspending tool 41 is detached from the coupling hole 42, the state of being inserted into the inner peripheral side of the notification member 43 is maintained. In addition, the notification member 43 is maintained in a hooked state with the boss portion of the screwing portion 37 positioned on the inner peripheral side. For this reason, the suspending tool 41 is maintained in a state of being coupled to the handle portion 23 via the notification member 43, and as a result, the suspending function of the suspending tool 41 is maintained.

  Further, as shown in FIG. 10, when the end portion 23 c of the handle portion 23 is broken and separated, and as a result, the hanging tool 41 is removed from the coupling hole 42, the notification member 43 is pulled out from the inside of the handle portion 23. . Since the notification member 43 incorporated in the inside of the coupling part 40 is pulled out to the outside, the user or the like can easily visually check the pulled out notification member 43. The user or the like can visually confirm that the inside of the coupling portion 40 has been deformed or damaged by an external force by visually checking the pulled-out notification member 43. Thus, the notification member 43 has a function of reliably notifying the user or the like that the coupling portion 40 of the hanging tool 41 has been deformed or damaged.

  As shown in FIGS. 1 to 4, the portable cutting machine 1 of the present embodiment includes a hanging hook 50 in addition to the coupling portion 40 for coupling the hanging tool 41 described above. The hanging hook 50 is a front portion of the cutting machine main body 20 and is provided in front of the fixed cover 24. In the first embodiment, the hanging hook 50 is provided on the upper surface of the support arm portion 25 b that swings and supports the cutting machine body 20 with respect to the base 10. The hanging hook 50 includes a hook bar 51 manufactured by bending a steel bar into a J shape, and a hook support portion 52 that supports the hook bar 51 on the upper surface of the support arm portion 25b.

  The hook bar 51 has a support portion 51a extending in the left-right direction, an intermediate portion 51b extending upward from the right end portion of the support portion 51a, and a hook portion 51c extending leftward from the upper portion of the intermediate portion 51b. The support portion 51a extends from the hook support portion 52 to the right. An intermediate portion 51b extends in a substantially right angle direction from the right end portion of the support portion 51a. A hooking portion 51c extends leftward from the upper portion of the intermediate portion 51b. The hook portion 51c extends in a slightly acute angle direction from the upper portion of the intermediate portion 51b. A positioning protrusion 51d is provided on the support portion 51a. A hooking protrusion 51e for engaging with a hooking target portion such as a scaffold is provided on the tip side of the hooking portion 51c.

  As shown in FIG. 3, the hook support portion 52 is screwed to the upper surface of the support arm portion 25b with two mounting screws 52a. The hook support portion 52 is provided with a cylindrical support tube portion 52b. The support 51a is inserted into the support cylinder 52b so as to be rotatable and movable in the axial direction. Thus, the hook bar 51 is supported so as to be swingable up and down and displaceable left and right around a support portion 51 a (left and right horizontal axis) parallel to the rotation axis of the rotary blade 22. As shown in FIG. 5, two V-shaped engaging grooves 52c and 52d are provided at the left end of the support cylinder 52b. The two engagement groove portions 52c and 52d are arranged in a radial direction passing through the center of the support tube portion 52b at a certain angle (about 120 ° in the present embodiment).

  The left end portion of the support portion 51a of the hook bar 51 protrudes from the left end portion of the support cylinder portion 52b, and an engagement pin 51f is provided at the protruding portion. The engagement pins 51f are protruded on both sides in the radial direction of the support portion 51a. Although not visible in the figure, a compression spring is interposed between the inner peripheral side of the support cylinder portion 52b and the support portion 51a. The support 51a is urged rightward in the axial direction by the compression spring. With this urging force, the engagement pin 51f is held in a state of being fitted into the engagement groove 52c or the engagement groove 52d, and the rotation of the support 51a is restricted. By restricting the rotation of the support portion 51a, the hook bar 51 is held at the storage position where the hook portion 51c is positioned upward and the use position where the hook portion 51c is positioned below (front). 1 to 4 show a state in which the hook bar 51 is stored in the storage position. FIG. 5 shows a state where the hook bar 51 is taken out to the use position.

  As shown in FIGS. 1 to 4, when the hook bar 51 is stored in the storage position, the intermediate portion 51 b is positioned at a position inclined obliquely upward and rearward from the vicinity of the front end portion of the base 10. On the other hand, when the hook bar 51 is taken out to the use position, the hook bar 51 protrudes largely horizontally from the vicinity of the front end portion. Since the hooking portion 51c of the hook bar 51 is taken out to a site far away from the front end of the base 10, the hook bar 51 can be easily hooked on a scaffold or a handrail. Can do. As shown in FIG. 5, the use position of the hook bar 51 is a position that does not protrude to the lower surface side of the base 10 and is restricted to a position that is above the base 10. As a result, even if the hook bar 51 is inadvertently moved to the use position for cutting work, the hook bar 51 does not interfere with the cutting material W or the rotary blade 22.

  Further, the hook portion 51 c of the hook bar 51 is bent toward the center of gravity of the portable cutting machine 1 in an acute angle direction from the tip of the intermediate portion 51 b. For this reason, in addition to hooking the hook bar 51 by positioning the portion to be hooked between the support portion 51a and the hook portion 51c, the front end portion 51cc of the hook portion 51c is abutted against the upper surface of the work table or the scaffold. Also, the portable cutting machine 1 can be suspended in a stable posture.

  The portable cutting machine 1 which concerns on 2nd Embodiment is shown by FIGS. 11-24. About the member or structure equivalent to the portable cutting machine 1 of 1st Embodiment, the description is abbreviate | omitted using a same sign. The portable cutting machine 1 according to the second embodiment is a hand-held cutting machine for mainly cutting wood and the like, and is also referred to as a portable marnoco. The portable cutting machine 1 according to the second embodiment is different from the portable cutting machine 1 according to the first embodiment in that a circular maroon blade is used as the rotary blade 61. Moreover, the fixed cover 62 is provided along the upper peripheral part of the rotary blade 61, and the center side of the rotary blade 61 is exposed to the side so that the convenience at the time of blade replacement can be achieved. In this regard, in the portable cutting machine 1 according to the first embodiment, almost the entire rotary blade 22 is covered on the upper surface side of the base 10 to enhance the dust collecting property. In the first embodiment, the fixing cover 24 can be removed, and the convenience at the time of exchanging the cutting tool is achieved.

  Also in the portable cutting machine 1 of the second embodiment, the cutting machine body 20 is supported so as to be able to swing up and down with respect to the base 10 around the vertical swing support shaft 63a of the vertical swing support part 63. And the cutting depth adjustment mechanism with respect to the cutting material W of the rotary blade 61 is provided like the portable cutting machine 1 of 1st Embodiment. In the portable cutting machine 1 of the second embodiment, the cutting machine main body 20 is supported so as to be able to swing left and right via a front support part 64 for the front side of the base 10 and a rear support part 65 for the rear side. . A so-called diagonal cut can be made by tilting the cutting machine body 20 left and right. The portable cutting machine 1 of the second embodiment is different from the portable cutting machine 1 of the first embodiment in that it has an oblique cutting function.

  In the portable cutting machine 1 of the second embodiment, a front grip portion 68 is provided at the front portion of the handle portion 23. The user is positioned on the rear side of the portable cutting machine 1, holds the handle part 23 with the right hand, holds the front grip part 68 with the left hand, and moves the portable cutting machine 1 in a stable state. In this respect, the operability of the portable cutting machine 1 is enhanced.

  As shown in FIG. 14, in the portable cutting machine 1 of the second embodiment, the controller 66 for controlling the operation of the electric motor 21 is accommodated in a controller accommodating portion 67 provided on the front side of the electric motor 21. Unlike the first embodiment, by disposing the controller housing portion 67 on the front side of the electric motor 21, the battery mounting portion 30 can be disposed closer to the electric motor 21. The direction is made compact. For this reason, as shown in FIGS. 11, 13, and 14, in the portable cutting machine 1 of the second embodiment, the cutting machine main body 20 does not protrude from the rear end of the base 10, thereby The handling of the cutting machine 1 during cutting is improved, and the compactness during storage is ensured.

  The portable cutting machine 1 according to the second embodiment includes a coupling unit 70 and a hanging hook 80 that are different from the coupling unit 40 and the hanging hook 50 according to the first embodiment. The coupling portion 70 is a portion for coupling a hanging tool 71 such as a so-called tether strap, and is provided on the rear surface of the handle portion 23 as in the first embodiment. Details of the connecting portion 70 according to the second embodiment are shown in FIGS.

  The coupling portion 70 according to the second embodiment includes a coupling hole 72. The coupling hole 72 is provided in a U-shaped path along the periphery of the screwing portion 37 that couples the left handle housing 23L and the right handle housing 23R of the left and right halved structure of the handle portion 23 to each other. Therefore, the openings 72 a and 72 b of the coupling hole 72 are provided on both the upper side and the lower side of the screwing portion 37. The coupling hole 72 is partitioned from the inside of the handle portion 23 by a wall portion 72 c provided along the periphery of the screwing portion 37. The coupling hole 72 is provided along a U-shaped path between the wall portion 72 c and the screwing portion 37.

  An informing member 73 is incorporated inside the coupling hole 72. In FIG. 24, the notification member 73 is shown alone. The notification member 73 according to the second embodiment is manufactured by bending a steel bar material, and a hook portion 73a bent in a U shape and one end portion of the hook portion 73a are bent leftward in an L shape. The engaging part 73b and the leg part 73c which bent the other end part of the hook part 73a to the front side in the same L-shape are also provided. A support portion 73d bent in a circular shape is provided at the front portion of the leg portion 73c. As shown in FIGS. 20 to 23, the notification member 73 is incorporated in a state where the hooking portion 73 a is positioned in the coupling hole 72 substantially below the screwing portion 37.

  The engaging part 73b, the leg part 73c, and the support part 73d of the notification member 73 are positioned outside the wall part 72c through a notch part 72d provided in the wall part 72c of the coupling hole 72. As shown in the drawing, the right leg portion 73c is coupled by engaging a support portion 73d with an engagement portion 74 provided on the right handle housing 23R. Although not shown in the drawing, the left engagement portion 73b is inserted into an engagement hole provided on the inner surface of the left handle housing 23L. Thus, the left engaging portion 73b and the right leg portion 73c are coupled to the left and right handle housings 23L and 23R, and the hooking portion 73a is provided so as to swing up and down within the opening range of the cutout portion 72d. Yes.

  As shown in FIGS. 20 and 21, the suspending tool 71 is wound around and coupled to the periphery of the screwing portion 37 while inserting the inside of the hooking portion 73 a of the notification member 73. According to the coupling portion 70 configured as described above, an external force is applied to the screwing portion 37 due to the long-time use of the hanging tool 71, and as a result, the screwing portion 37 is damaged as shown in FIGS. Even if it is a case where it is missing, the hanging tool 71 is maintained in a state of being hooked on the hooking portion 73a of the notification member 73. The notification member 73 is maintained in a state of being coupled to the handle portion 23 via the engaging portion 73b and the leg portion 73c. For this reason, the suspending tool 71 is maintained in a state of being coupled to the handle portion 23 via the notification member 73, and as a result, the suspending function of the suspending tool 71 is maintained.

  Further, when the screwing portion 37 is broken and separated from the coupling portion 70, and as a result, the hanging tool 71 is removed from the coupling hole 72, the notification member 73 is pulled out from the opening 72 b below the coupling hole 72. Since the notification member 73 incorporated in the coupling portion 70 is pulled out to the outside, the user or the like can easily visually check the pulled out notification member 73. The user or the like can visually confirm that the inside of the coupling portion 70 has been deformed or damaged by an external force by visually checking the notification member 73 drawn out from the coupling portion 70 to the outside. As described above, the notification member 73 has a function of reliably notifying the user that the coupling portion 70 of the hanging tool 71 has been deformed or damaged. The notification function of the notification member 73 can alert the user of the portable cutting machine 1 as in the first embodiment.

  As shown in FIGS. 11 to 14, the hanging hook 80 according to the second embodiment is supported by the front portion of the fixed cover 62. The hanging hook 80 includes a hook bar 81 manufactured by bending a steel bar into a J shape, and a hook support portion 82 that supports the hook bar 81 on the front portion of the fixed cover 62. The hook bar 81 includes a support part 81a extending upward from the hook support part 82, an intermediate part 81b extending substantially perpendicularly from the upper part of the support part 81a, and a hooking part 81c extending downward from the tip of the intermediate part 81b in an acute angle direction. Have. A hooking projection 81d for engaging with a hooking target part such as a scaffold is provided on the tip side of the hooking part 81c. As shown in FIG. 11, the support portion 81 a is inclined in a backward inclination direction that is displaced rearward toward the upper side.

  The hook support portion 82 is screwed to the front portion of the fixed cover 62 with two attachment screws 82a. The hook support portion 82 is provided with a cylindrical support tube portion 82b. The lower side of the support portion 81a is inserted into the support cylinder portion 82b so as to be rotatable and movable in the axial direction. Thereby, the hook bar 81 is supported so that it can swing right and left and displace up and down around the support portion 81a.

  The lower end portion of the support portion 81a of the hook bar 81 protrudes from the lower end portion of the support cylinder portion 82b. Engagement pins 81e that protrude on both sides in the radial direction are provided on the protruding portion of the support portion 81a. Two V-shaped engagement grooves passing through the center of the support cylinder 82b are provided at the lower end of the support cylinder 82b. As in the first embodiment, when the engagement pin 81e is fitted into any of the engagement grooves, the rotation operation of the support portion 81a is restricted, whereby the position of the hook bar 81 is locked. In the second embodiment, the hook bar 81 is held at four positions around the support portion 81a. Similar to the first embodiment, the support portion 81a of the hook bar 81 is urged in a direction to be displaced upward by a compression spring interposed between the support bar portion 82b and the support portion 81a. Due to the biasing force of the compression spring, the engagement pin 81e is held in a state where it is fitted in the engagement groove, and the position around the support portion 81a of the hook bar 81 is maintained.

  11 to 14 show a state in which the hooking portion 81c is held at the storage position where the hooking portion 81c is positioned in front of the handle portion 23 (on the left side of the fixed cover 62). 15 and 16 show a state in which the hooking portion 81c is held at the front use position where the hook 81c is positioned in front of the fixed cover 62. FIG. 17 and 18 show a state in which the hooking portion 81c is held at the side use position where it is located on the right side of the fixed cover 62. FIG. At each position, the hook bar 81 is held in position by elastically fitting the engagement pin 81e into the corresponding engagement groove. Although not shown, the hook bar 81 can be inverted 180 ° from the front use position and held in the retracted position where the hook 81 c is positioned above the fixed cover 62. Thus, the hook bar 81 has the engagement pin 81e elastically fitted in the engagement groove at a total of four positions where the hooking portion 81c is positioned on the front, upper, left side and right side of the fixed cover 62. Each position is held by inserting.

  According to the hanging hook 80 according to the second embodiment, the compactness of the portable cutting machine 1 can be ensured by storing the hook bar 81 in a storage position where it does not get in the way when not in use. On the other hand, the portable cutting machine 1 can be suspended in different postures by selecting the front use position or the side use position and holding the hook bar 81 according to the situation at the work site. In point, the function of the hanging hook 80 can be enhanced.

  Similarly to the first embodiment, the hooking portion 81c of the hook bar 81 is bent at an acute angle direction from the tip of the intermediate portion 81b and toward the center of gravity of the portable cutting machine 1. For this reason, in addition to hooking the hook bar 81 by positioning the hook target part between the support part 81a and the hook part 81c, the tip part 81cc of the hook part 81c is abutted against the upper surface of the work table or the scaffold. Also, the portable cutting machine 1 can be suspended in a stable posture.

  Regarding the hanging hook 50 of the first embodiment and the hanging hook 80 of the second embodiment, a configuration in which an engagement pin is elastically fitted into the engagement groove portion in order to maintain the position of the hook bars 51 and 81. However, for example, the hook bars 51 and 81 may be locked by tightening a fixing screw.

  The portable cutting machine 1 of 3rd Embodiment is shown by FIGS. 25-28. The portable cutting machine 1 of the third embodiment is different from the portable cutting machine 1 of the second embodiment in that it includes a hanging hook 91 that is different from the hanging hook 80 of the second embodiment. Since members and configurations other than the hanging hook 91 are the same as those of the portable cutting machine 1 of the second embodiment, description thereof will be omitted using the same signs. Similarly to the second embodiment, a coupling portion 70 for coupling a hanging tool 71 such as a tether strap is also provided at the rear portion of the handle portion 23 of the portable cutting machine 1 in the third embodiment.

  The hanging hook 91 according to the third embodiment is supported by the front portion of the fixed cover 62 as in the second embodiment. The hanging hook 91 includes a hook bar 92 manufactured by bending a steel bar into a J shape, and a hook support portion 93 that supports the hook bar 92 on the front portion of the fixed cover 62. The hook bar 92 includes a support portion 92a extending upward from the hook support portion 93, an intermediate portion 92b extending substantially perpendicularly from the upper portion of the support portion 92a, and a hook portion 92c extending downward from the tip of the intermediate portion 92b in an acute angle direction. Have. A hooking protrusion 92d for engaging with a hooking target portion such as a scaffold is provided on the tip side of the hooking portion 92c. As shown in FIG. 25, the support portion 92a is inclined in a backward inclined direction that is displaced rearward toward the upper side, and this point is also configured in the same manner as the hanging hook 80 according to the second embodiment.

  The support portion 92a of the hook bar 92 is provided with a smaller-diameter support shaft portion 92e coaxially. The support shaft portion 92e extends long downward from the lower end of the support portion 92a. The lower part of the support shaft part 92e protrudes from the lower end of the support cylinder part 93a. Engagement pins 95 are provided at the protruding portions so as to protrude on both sides in the radial direction.

  The hook support portion 93 has a cylindrical support tube portion 93 a and an attachment portion 93 f for the fixed cover 62. The hook support portion 93 is attached to the front portion of the fixed cover 62 by connecting the attachment portion 93 f with two attachment screws 94. The support cylinder part 93a in 3rd Embodiment has a cylindrical shape longer than the support cylinder part 82b of 2nd Embodiment. Two insertion holes having different diameters are provided coaxially on the inner peripheral side of the support cylinder portion 93a. The upper insertion hole 93b is formed with a larger diameter than the lower insertion hole 93c. The upper insertion hole 93 b is formed with a diameter that allows the support portion 92 a of the hook bar 92 to be inserted. The lower insertion hole 93c is formed in such a diameter that the support shaft 92e of the hook bar 92 can be inserted and the larger-diameter support 92a cannot be inserted.

  A compression spring 96 is interposed around the support shaft portion 92e of the hook bar 92 and between the lower surface of the support portion 92a and the bottom portion of the insertion hole 93b. Due to the urging force of the compression spring 96, the support portion 92a is urged in the direction of coming out upward from the insertion hole 93b of the support cylinder portion 93a, and thereby the hook bar 92 is urged upward. 25 and 26 show a state in which the hook bar 92 is positioned at the upper position.

  Two engaging groove portions 93d and 93e having different depths in the longitudinal direction are provided on the lower surface of the support cylinder portion 93a. The engaging groove portion 93d is formed deep, and the engaging groove portion 93e is formed shallow. When viewed from the bottom surface of the support tube portion 93a (as viewed from the direction indicated by the arrow XXV in FIG. 25), the deep engagement groove portion 93d and the shallow engagement groove portion 93e are respectively provided in the radial direction through the center of the bottom surface of the support tube portion 93a. And are arranged so as to cross each other in a cross shape.

  As shown in FIG. 25, when the hook bar 92 is rotated around the support portion 92a and the engagement pin 95 is positioned in the deep engagement groove portion 93d, the hook bar 92 causes the engagement pin 95 to be moved by the urging force of the compression spring 96. It is held at the upper position in contact with the bottom of the engaging groove 93d. In a state where the hook bar 92 is located at the upper position, the intermediate portion 92b extends from the upper portion of the support portion 92a obliquely forward and upward (upward use position), or extends backward and obliquely downward (upward storage position). It becomes. In the upper use position in which the intermediate portion 92b extends obliquely upward in the forward direction, the hooking portion 92c is positioned on the upper front side of the base 10. The upper use position of the hook bar 92 corresponds to a use position convenient for hooking to another part such as a scaffold. The intermediate portion 92b and the hooking portion 92c can be positioned above the fixed cover 62 at the upper storage position that is inverted 180 ° from the upper use position.

  The hook bar 92 is pushed down from the use position to disengage the engaging pin 95 from the deep engaging groove portion 93d, and then the hook bar 92 is rotated about 90 ° around the support portion 92a, and then the pushing operation is stopped. Returning upward, the engaging pin 95 fits into the shallow engaging groove 93e. This state is shown in FIG. 27 and FIG. When the hook bar 92 is positioned at a position where the engagement pin 95 is fitted into the shallow engagement groove 93e, the hook bar 92 is held at a position lower than the use position as a whole. This low position corresponds to the storage position of the hook bar 92. As shown in the figure, when the hook bar 92 is stored in the storage position, the intermediate portion 92b extends from the upper portion of the support portion 92a to the left, and as a result, the hook portion 92c is positioned in front of the handle portion 23. Become. For this reason, when the hook bar 92 is stored in the storage position, the hook bar 92 is positioned at a position lower than the use position and on the rear side. In this respect, the portable cutting machine 1 can be made compact. Since the cutting work can be performed with the hook bar 92 stored in a compact manner, the workability of the portable cutting machine 1 can be improved.

  According to the portable cutting machine 1 of the first embodiment described above, the suspension hook 50 is suspended from the front part of the cutting machine main body 10 and the upper surface of the support arm part 25b (near the vertically swinging support part 26). A hook 50 is provided. By being provided in such a part, the hanging hook 50 is disposed in front of the fixed cover 24. For this reason, it becomes easy to move the portable cutting machine 1 while holding the handle 23 during the cutting operation and to hook the hook bar 51 to another part such as a scaffold. Usability can be further improved.

  In addition to the structure provided on the upper surface of the support arm portion 25b like the hanging hook 50 according to the first embodiment, the front portion of the fixed cover 24 like the hanging hooks 80 and 91 according to the second and third embodiments. It is possible to adopt a configuration in which the first cover 24 is disposed forward of the fixed cover 24. The hook bars 81 and 92 in the hanging hooks 80 and 91 of the second and third embodiments are supported in front of the fixed cover 24 via hook support portions 82 and 93 attached directly to the front surface of the fixed cover 24, respectively. . Also by using the hanging hooks 80 and 91 of the second and third embodiments, the usability can be improved by being provided in front of the fixed cover 24.

  In addition, since the hanging hook 50 of the first embodiment is arranged on the upper surface of the support arm portion 25b and using the empty space near the vertical swing support portion 26, the hanging hook 50 is compact. Can increase the sex.

  Furthermore, according to the hanging hook 50 of the first embodiment, the use position of the hook bar 51 is restricted to a range that does not protrude to the lower surface side of the base 10. As a result, even if the hook bar 51 is inadvertently moved to the use position for cutting work, the hook bar 51 does not interfere with the cutting material W or the rotary blade 22.

  According to the suspension hooks 80 and 91 of the second and third embodiments, the hook bars 81 and 92 are rotated around the vertical axis in the tangential direction with respect to the peripheral edge of the fixed cover 62 (the axis of the support portions 81a and 92a). It can be taken out to a position and stored in a storage position.

  In particular, according to the hanging hook 91 of the third embodiment, the hook bar 92 can be moved in the up and down vertical axis (in the axial direction of the support portion 92a) to be moved to the upper use position and the lower storage position. In this respect, the usability of the hanging hook 91 can be further enhanced, and the compactness during storage can be enhanced.

  Similarly to the first and second embodiments, the hooking portion 92c of the hook bar 92 of the third embodiment is bent at an acute angle direction from the tip of the intermediate portion 92b and toward the center of gravity of the portable cutting machine 1. . For this reason, in addition to hooking the hook bar 92 by positioning the target portion between the support portion 92a and the hook portion 92c, the front end portion 92cc of the hook portion 92c is abutted against the upper surface of the work table or the scaffold. Also, the portable cutting machine 1 can be suspended in a stable posture.

  The embodiment described above can be further modified. For example, although the hook bars 51, 81, and 92 bent in a J shape are illustrated, a configuration using a hook bar bent in an L shape or a loop shape may be used.

  Further, the configuration in which the hanging hooks 50, 80, 91 are arranged in the vicinity of the vertical swing support portions 26, 63 or in front of the fixed covers 24, 62 is illustrated. A suspension hook may be provided on the upper surface of the support portion 64 or the base 10.

  Further, in the first embodiment, the portion where the hanging hook is disposed is provided on the upper surface of the support arm portion 25b that swings and supports the cutting machine body 20 with respect to the base 10, and in the second and third embodiments, the portion is fixed. Although the structure provided in the front part of the cover 24 was illustrated, it can also provide in another site | part. For example, a hanging hook is provided on the left side of the handle portion 20 (fourth embodiment), a hanging hook is provided on the front portion of the electric motor 21 (fifth embodiment), and a hanging hook is provided on the upper portion of the electric motor 21. Provided (sixth embodiment), a hanging hook is provided at the rear part of the handle part 20 (seventh embodiment). The fourth to seventh embodiments are different in the portion where the hanging hook is provided, and the basic configuration of the portable cutting machine 1 is the same as that of the first embodiment, and no particular change is required. About the same member and structure as 1st Embodiment, the description is abbreviate | omitted using a same sign.

  29 to 33 show a portable cutting machine 1 including a hanging hook 100 according to the fourth embodiment. The hanging hook 100 according to the fourth embodiment is provided on the left side portion of the handle portion 23. The hanging hook 100 includes a hook bar 101 bent into a J shape and a hook support portion 102 that supports the hook bar 101. The hook bar 101 includes a support part 101a extending in the front-rear direction, an intermediate part 101b extending up and down from the front end of the support part 101a, and a hooking part 101c bent backward from the tip of the intermediate part 101b. A hooking protrusion 101d is provided on the front end side of the hooking portion 101c.

  The hook support portion 102 is screwed to the pedestal portion 104 provided on the left side of the front portion 23 a of the handle portion 23 with two fixing screws 105. A support portion 101a is inserted into a cylindrical hook support portion 102 so as to be rotatable about its axis and displaceable in the axial direction. An engagement pin 103 is attached to the rear part of the support part 101a protruding from the rear end surface of the hook support part 102. When the engagement pin 103 is fitted into a V-shaped engagement groove 102a provided on the rear end surface of the hook support portion 102, the hook bar 101 is held at the use position and the storage position.

  As shown in FIGS. 29 and 30, when the hook bar 101 is stored in the storage position, the intermediate portion 101b extends downward from the tip of the support portion 101a. On the other hand, as shown in FIGS. 31 and 32, when the hook bar 101 is taken out to the use position, the intermediate portion 101b extends from the front end of the support portion 101a in a direction inclined obliquely to the upper left.

  According to the hanging hook 100 according to the fourth embodiment, the portable cutting machine 1 is suspended by hooking the hook bar 101 extending obliquely upward from the left side portion of the handle portion 23 to the end portion of the scaffold or work table. be able to. When the hanging hook 100 is not used, it can be stored in a position that does not interfere with the cutting operation.

  In the fourth embodiment, the use position of the hook bar 101 is particularly appropriately set. As described above, the hook bar 101 includes the support portion 101a extending forward from the handle portion 23, the intermediate portion 101b extending vertically from the front portion of the support portion 101a, and the hook extending back from the front end portion of the intermediate portion 101b. It has a J shape with a portion 101c. When the hook bar 101 is taken out to the use position as shown in FIG. 32, the support portion 101a, the intermediate portion 101b, and the hooking portion 101c are positioned on one virtual plane S. The use position of the hook bar 101 (toward the upper left side) so that the center of gravity G of the portable cutting machine 1 is positioned on one virtual plane S where the support part 101a, the intermediate part 101b and the hooking part 101c are located. (Tilt angle) is set. Moreover, the folding angle of the hooking portion 101c with respect to the intermediate portion 101b is set so that the hooking portion 101c is bent in an acute angle direction from the tip portion of the intermediate portion 101b and extends toward the center of gravity G. In this embodiment, the center of gravity G of the portable cutting machine 1 is located on one virtual plane S where the support portion 101a, the intermediate portion 101b, and the hooking portion 101c are located. It is not necessary to be on the virtual plane S, and it is sufficient if a part of the peripheral area centering on the gravity center G intersects the virtual plane S.

  Thus, according to the hanging hook 100 of the fourth embodiment, the center of gravity G of the portable cutting machine 1 is on one virtual plane S including the support portion 101a, the intermediate portion 101b, and the hooking portion 101c of the hook bar 101. By setting the use position of the hook bar 101 so as to be positioned, the suspension posture of the portable cutting machine 1 can be stabilized.

  Moreover, the folding direction of the hooking portion 101c is set so that the hooking portion 101c extends toward the center of gravity G. For this reason, when there is no suitable part to be hooked between the support part 101a and the hooking part 101c, the tip part 101cc of the hooking part 101c is placed on the work table D as shown in FIG. It can be hung while being abutted against the upper surface. Also in this case, since the center of gravity G of the portable cutting machine 1 is located below the butted portion of the tip 101cc in the vertical direction, it can be suspended in a stable posture.

  34 to 37 show a hanging hook 110 according to the fifth embodiment. The hanging hook 110 according to the fifth embodiment is provided at the front portion of the electric motor 10. The hanging hook 110 includes a hook bar 111 manufactured by bending a steel bar into a J shape, and a hook support portion 112 that supports the hook bar 111 on the front portion of the electric motor 21.

  The hook bar 111 has a support part 111a extending upward, an intermediate part 111b extending in the lateral direction from the upper part of the support part 111a, and a hooking part 111c extending downward from the tip of the intermediate part 111b. A hooking protrusion 111d for engaging with a hooking target part such as a scaffold is provided on the tip side of the hooking part 111c.

  The hook support portion 112 is coupled to the front portion of the motor housing 21 a by two fixing screws 113. A support portion 111a of the hook bar 111 is inserted into an inner peripheral hole of the hook support portion 112 having a cylindrical shape so as to be rotatable about an axis and displaceable in the axial direction. The lower end portion side of the support portion 111a protrudes downward from the lower portion of the hook support portion 112. An engagement pin 114 is attached to the protruding portion. The hook pin 111 is held at the use position and the storage position by the engagement pin 114 being fitted into a V-shaped engagement groove portion 112 a provided on the lower surface of the hook support portion 112. The hook bar 111 is urged in a direction in which the engagement pin 114 is fitted into the engagement groove 112a by a compression spring (not shown) interposed between the hook bar 111 and the hook support 112.

  The hook bar 111 is used by rotating the hook bar 111 around the axis of the support part 111a in a state where the hook bar 111 is pushed down against the spring biasing force and the engagement pin 114 is detached from the engagement groove part 112a. It can be displaced to the position and the storage position. 34 and 35 show a state in which the hooking portion 111c is held at the storage position where the hooking portion 111c is located on the rear side of the electric motor 21. FIG. FIG. 36 and FIG. 37 show a state in which the hooking portion 111c is held at a use position that is located obliquely to the left of the front of the electric motor 21.

  By changing the position of the engagement groove 112a provided on the lower surface of the hook support 112, the hook bar 111 can be changed to the use position and the storage position. The hook bar 111 is taken out to the use position, and the support portion 111c is positioned diagonally to the left of the front of the electric motor 21, so that the portable cutting machine 1 can be attached to the end of a scaffold, a handrail, or a work table using the hanging hook 110. It can be hooked to the part. By holding the hook bar 111 in the storage position, it is possible to prevent the cutting work from being obstructed.

  Similarly to the first to fourth embodiments, the hook portion 111c of the hook bar 111 is bent toward the center of gravity G of the portable cutting machine 1 in an acute angle direction from the tip of the intermediate portion 111b. For this reason, in addition to hooking the hook bar 111 by positioning the portion to be hooked between the support portion 111a and the hook portion 111c, the tip portion of the hook portion 111c is the same as in the fourth embodiment shown in FIG. The portable cutting machine 1 can be suspended in a stable posture by abutting 111 cc against the work table D or the upper surface of the scaffold.

  The portable cutting machine 1 provided with the hanging hook 120 which concerns on 6th Embodiment is shown by FIGS. 38-41. The hanging hook 120 of the sixth embodiment is provided slightly in front of the upper part (top part) of the motor housing 21a. The hanging hook 120 includes a hook bar 121 and a hook support portion 122 that supports the hook bar 121. The hook bar 121 includes a support part 121a extending from the hook support part 122 obliquely forward and downward, an intermediate part 121b extending downward or leftward from the tip of the support part 121a, and a pull bent backward from the tip of the intermediate part 121b. A hanging portion 121c is provided. A hooking protrusion 121d is provided on the front end side of the hooking portion 121c.

  A pedestal 123 is provided on the motor housing 21a. A hook support portion 122 is attached to the pedestal portion 123 with two fixing screws 124. A support 121a is inserted into a cylindrical hook support 122 so as to be axially displaceable and rotatable about the axis. Engagement pins 125 are provided at the rear part of the support part 121a and protruded rearward from the hook support part 122 in a state of protruding to both sides in the radial direction. The engagement pin 125 is elastically fitted into a V-shaped engagement groove 122a provided on the rear surface of the hook support portion 122, whereby the hook bar 121 is held in the storage position and the use position.

  As shown in FIGS. 38 and 39, when the hook bar 121 is positioned at the retracted position, the intermediate portion 121b and the hooking portion 121c are positioned in front of the motor 21. The hook bar 121 can be rotated around the axis of the support portion 121a and taken out to the use position. As shown in FIGS. 40 and 41, when the hook bar 121 is taken out to the use position, the intermediate portion 121b extends obliquely upward to the left.

  Also with the hanging hook 120 of the sixth embodiment, the portable cutting machine 1 can be suspended by taking out the hook bar 121 to the use position and hooking it on the end of a scaffold or workbench.

  Similarly to the first to fifth embodiments, also in the sixth embodiment, the hook portion 121c of the hook bar 121 is bent at an acute angle direction from the tip of the intermediate portion 121b and toward the center of gravity G of the portable cutting machine 1. It has been. For this reason, in addition to hooking the hook bar 121 by positioning the portion to be hooked between the support portion 121a and the hook portion 121c, the tip 121cc of the hook portion 121c is abutted against the work table D or the upper surface of the scaffold. Also, the portable cutting machine 1 can be suspended in a stable posture (see FIG. 33).

  42 to 45 show a portable cutting machine 1 provided with a hanging hook 130 according to a seventh embodiment. The hanging hook 130 of the seventh embodiment is provided on the rear side of the handle portion 23. The hanging hook 130 includes a hook bar 131 and a hook support portion 132 that supports the hook bar 131. The hook bar 131 includes a support part 131a that extends horizontally from the hook support part 132 to the left, an intermediate part 131b that extends downward or rearward from the tip of the support part 131a, and a hook bent to the right from the tip of the intermediate part 131b. A portion 131c is provided. A hooking protrusion 131d is provided on the tip side of the hooking portion 131c.

  The support part 131a of the hook bar 131 is inserted into a hook support part 132 having a cylindrical shape so as to be rotatable about an axis and displaceable in the axial direction. Engagement pins 135 are attached to the ends of the support portions 131a protruding from the end surfaces of the hook support portions 132 so as to protrude to both sides in the radial direction. When the engaging pin 135 is fitted into a V-shaped engaging groove 132 a provided on the end surface of the hook support portion 132, the hook bar 131 is held in the use position and the storage position.

  A pedestal part 134 is provided at the rear part of the battery attachment part 30 so as to protrude rearward. The hook support portion 132 is screwed to the pedestal portion 134 with two fixing screws 133. As shown in FIGS. 42 and 43, when the hook bar 131 is stored in the storage position, the intermediate portion 131b extends downward and the hook portion 131c is stored along the rear of the battery pack 31. The hook bar 131 can be taken out from the storage position to the use position by rotating about 90 ° around the axis of the support portion 131a.

  As shown in FIGS. 44 and 45, when the hook bar 131 is taken out to the use position, the intermediate portion 131b extends rearward from the tip of the support portion 131a. By taking out the hook bar 131 to the use position, the portable cutting machine 1 can be suspended while the hook 131c is hooked on, for example, a scaffold or an end of a work table.

  Also in the seventh embodiment, the hook 131 c of the hook bar 131 is folded back in a J shape and is directed toward the center of gravity G of the portable cutting machine 1 at the use position. For this reason, in addition to hooking the hook bar 131 by positioning the portion to be hooked between the hook 131c and the support 131a, the tip 131cc of the hook 131c is abutted against the work table D or the upper surface of the scaffold. Even in this state, the portable cutting machine 1 can be stably suspended (see FIG. 33).

  Moreover, since the hanging hook 130 according to the seventh embodiment is provided at the rear portion of the handle portion 23, it does not get in the way when the cutting site is visually observed during the cutting operation, and the operation of the portable cutting machine 1 There is no loss of sex.

  In 1st-7th embodiment demonstrated above, although the circular saw which rotates a circular blade tool as a portable cutting machine 1 was illustrated, the jigsaw which cuts by reciprocating a strip-shaped blade is demonstrated. It is possible to apply the hanging hook or the strap connecting portion exemplified for the other types of cutting machines.

W ... Cutting material 1 ... Portable cutting machine 10 ... Base 11 ... Illuminating tool 12 ... Movable cover 13 ... Cutting tool fixing screw 20 ... Cutting machine body 21 ... Electric motor 21a ... Motor housing, 21b ... Stator, 21c ... Rotor, 21d ... Motor shaft 21e ... cooling fan, 21f ... intake hole 22 ... rotating blade 23 ... handle portion 23L ... left handle housing, 23R ... right handle housing, J ... butting portion 23a ... front portion, 23b ... grip portion, 23c ... end 24 ... fixed cover 24a ... fixed screw, 24b ... arrow (rotating direction of rotary blade 22), 24c ... lid part 25 ... reduction gear part 25a ... gear housing, 25b ... support arm part 26 ... vertical swing support part, 26a ... vertical Oscillating support shaft 27 ... Depth guide 28 ... Fixing lever 29 ... Fixing screw shaft 29a ... Fixing nut 30 ... Battery mounting part 31 ... Tteripakku 32 ... output shaft 33, 34 ... mounting flange 35 ... controller housing portion 36 ... controller 37 ... screwed portion 38 ... switch lever 39 ... main switch 40 ... coupling portion 41 ... hanger (First Embodiment)
42 ... Coupling hole, 42a ... Wall portion 43 ... Notification member 50 ... Hanging hook (first embodiment)
51 ... Hook bar 51a ... support part, 51b ... intermediate part, 51c ... hook part, 51cc ... tip part 51d ... positioning protrusion, 51e ... hook protrusion, 51f ... engagement pin 52 ... hook support part 52a ... mounting screw, 52b ... support cylinder part, 52c, 52d ... engaging groove part 61 ... rotating blade 62 ... fixed cover 63 ... vertical swing support part, 63a ... vertical swing support shaft 64 ... front support part 65 ... rear support part 66 ... controller 67 ... Controller housing part 68 ... Front grip part 70 ... Coupling part 71 ... Hanging tool (second embodiment)
72 ... Coupling hole 72a ... Opening (upper side), 72b ... Opening (lower side), 72c ... Wall part, 72d ... Notch part 73 ... Notification member 73a ... Hooking part, 73b ... Engagement part, 73c ... Leg part, 73d ... support part 74 ... engagement part 80 ... hanging hook (second embodiment)
81 ... Hook bar 81a ... support part, 81b ... intermediate part, 81c ... hook part, 81cc ... tip part 81d ... hook protrusion, 81e ... engagement pin 82 ... hook support part 82a ... mounting screw, 82b ... support cylinder part 91 ... Hanging hook (third embodiment)
92 ... Hook bar 92a ... support part, 92b ... intermediate part, 92c ... hook part, 92cc ... tip part 92d ... hook protrusion, 92e ... support shaft part 93 ... hook support part 93a ... support cylinder part, 93b ... insertion hole ( Large diameter), 93c ... Insertion hole (small diameter)
93d ... engaging groove (deep), 93e ... engaging groove (shallow), 93f ... mounting portion 94 ... mounting screw 95 ... engaging pin 96 ... compression spring 100 ... hanging hook (fourth embodiment)
DESCRIPTION OF SYMBOLS 101 ... Hook bar 101a ... Support part, 101b ... Intermediate part, 101c ... Hook part, 101cc ... Tip part 101d ... Hook protrusion 102 ... Hook support part, 102a ... Engagement groove part 103 ... Engagement pin 104 ... Base part 105 ... Fixing screw S ... Virtual plane G ... Center of gravity 110 ... Hanging hook (fifth embodiment)
111 ... Hook bar 111a ... support part, 111b ... intermediate part, 111c ... hook part, 111cc ... tip part 111d ... hook protrusion 112 ... hook support part, 112a ... engagement groove part 113 ... fixing screw 114 ... engagement pin 120 ... Hanging hook (sixth embodiment)
121 ... Hook bar 121a ... support part, 121b ... intermediate part, 121c ... hook part, 121cc ... tip part 121d ... hook protrusion 122 ... hook support part, 122a ... engagement groove part 123 ... pedestal part 124 ... fixing screw 125 ... engagement Joint pin 130 ... Hanging hook (seventh embodiment)
131 ... Hook bar 131a ... support part, 131b ... intermediate part, 131c ... hook part, 131cc ... tip part 131d ... hook protrusion 132 ... hook support part, 132a ... engagement groove part 133 ... fixing screw 134 ... pedestal part 135 ... engagement Pin

Claims (13)

A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A portable cutting machine provided with a hanging hook in front of a fixed cover that covers the periphery of the cutting tool. The portable cutting machine according to claim 1, comprising: a base to be brought into contact with a cutting material on a lower surface side; and a cutting machine body supported on the upper surface side of the base, wherein the cutting machine body is the electric motor. And the cutting tool, the cutting tool is configured to protrude to the lower surface side of the base and cut into the cutting material,
The cutting machine body is supported on the upper surface side of the base via the front vertical swing support portion so as to be swingable up and down, and the amount of protrusion of the cutting tool to the lower surface side of the base can be changed. And
A portable cutting machine provided with the hook in the vicinity of the vertical swing support part. 3. The portable cutting machine according to claim 2, wherein a support arm of the up-and-down swing support part is provided at a front portion of the cutting machine body, and the hook is provided on an upper surface of the support arm. Machine. 4. The portable cutting machine according to claim 3, wherein the hook is provided so that the position can be changed, and a range in which the position of the hook can be changed is restricted to an upper surface side of the base. 5. The portable cutting machine according to claim 4, wherein the hook is configured to be capable of changing its position in the front-rear direction by rotating around the horizontal axis. 5. The portable cutting machine according to claim 4, wherein the hook is configured to be capable of changing its position to the left and right by rotating around a vertical axis in a tangential direction with respect to a peripheral edge of the fixed cover. A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A hook for hanging is provided in front of a fixed cover that covers the periphery of the blade,
The hook is configured to be configured such that the hook can be rotated about a vertical axis in the tangential direction with respect to the periphery of the fixed cover to change the position left and right, and can be changed in the vertical direction by being displaced in the vertical axis direction. Cutting machine. 8. The portable cutting machine according to claim 7, wherein the hook can be repositioned upward in the vertical vertical axis direction and taken out to a use position, and the hook can be repositioned in the vertical vertical axis direction downward and stored in a storage position. Portable cutting machine with possible configuration. A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A handle portion gripped by a user, and a hook for hanging on a side portion of the handle portion opposite to the cutting tool;
The hook is a portable cutting machine including a hook bar having a support portion extending forward and a hook portion extending from the front side of the support portion to the back. A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A hook for hanging is provided at the front of the electric motor,
The hook is a portable cutting machine including a hook bar having a support portion extending upward and a hook portion that is folded downward from the upper side of the support portion. A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A hook for hanging is provided on the electric motor,
The hook is a portable cutting machine including a hook bar having a support portion extending obliquely downward and forward and a hook portion extending obliquely upward and rearward from the front side of the support portion. A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A handle portion gripped by a user, and a hook for hanging at the rear of the handle portion;
The hook is a portable cutting machine including a hook bar having a support portion extending in a direction away from the blade tool and a hook portion that is folded back from a tip end side of the support portion and extends in a direction approaching the blade tool. A portable cutting machine that performs cutting by cutting a cutting tool with an electric motor as a drive source into a cutting material,
A hook bar for suspending, the hook bar having a J shape having a support part, an intermediate part and a hook part;
A position where the center of gravity of the portable cutting machine is located on a virtual plane including the support portion, the intermediate portion, and the hooking portion, and the hook bar is used to extend toward the center of gravity. A portable cutting machine configured to perform.

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