JP2017056684A - Portable plane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a portable plane to be used with hands easy for a user to handle by achieving weight saving and compactification.SOLUTION: A portable plane 10 has a motor 21. The motor 21 is composed of an outer rotor type motor. Thus, the motor 21 has higher rotational torque as compared with an inner rotor type motor. A blade tool 35 can be fitted to a fitting member 31 on an outer periphery of a rotor 26 of an outer rotor which becomes a part of the motor 21. This can eliminate speed reduction means for increasing rotational torque, such as a belt and gear, and thus the portable plane is made easy for a user to handle by achieving weight saving and compactification.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a portable canna that is used by hand.

  In recent years, portable planes have been used for wood surface processing (see, for example, Patent Document 1). This type of portable plane incorporates an inner rotor type motor as a drive source. An endless belt for transmitting a rotational driving force is wound around the motor shaft of the motor. The endless belt is also wound around the rotation shaft of the cylinder, and the rotational driving force of the motor is transmitted to the cylinder. A blade is attached to the outer periphery of the cylinder. The blade is applied to the processed surface of the wood, and the surface of the wood is processed by rotating together with the cylinder.

US Patent Application Publication No. 2009/0000696

  By the way, the above-described portable plane is used while being held and moved by hand. For this reason, in order to improve the user's ease of work, weight reduction as a tool and compactness as a tool are required.

  The present invention has been made in view of such circumstances, and the problem to be solved by the present invention is to use the portable canna used by holding it by reducing the weight and size. It is to make it easy for a person to handle.

  In order to solve the above-described problems, the portable plane according to the present invention takes the following means. That is, the portable plane according to the first aspect of the present invention is a portable plane that is used by being held by hand, and the drive source is an outer rotor type motor. According to the portable plane according to the first aspect of the present invention, since the drive source is an outer rotor type motor, the rotational torque is increased as compared with the inner rotor type motor. Accordingly, the blade can be attached to the outer peripheral side of the outer rotor that is a part of the motor without interposing a speed reduction means such as a belt or a gear. Therefore, the speed reduction means for increasing the rotational torque can be eliminated, and the user can easily handle the weight reduction and compactness.

  The portable canna according to the second aspect of the present invention is a portable canna that is used by being held by hand, and the drive source is a brushless motor. According to the portable plane according to the second aspect of the present invention, the motor can be configured without a brush. As a result, the motor can be reduced in weight and size, and the portable plane itself can be reduced in weight and size.

  A portable canna according to a third aspect of the present invention is a portable canna that is used by being held by hand, and has a configuration in which a battery is disposed below a grip that is held by a hand. According to the portable canna according to the third aspect of the invention, since the battery is disposed below the grip held by the hand, the bulk of the battery can be accommodated within the product dimensions of the portable canna. Thereby, the portable canna can be made compact, and the user's workability can be enhanced. If the battery is disposed below the grip gripped by the hand in this way, the weight of the battery is applied at a position below the hand grip position. As a result, the center of gravity of the portable canna can be made lower than the position where the portable canna is gripped by hand, and the operation stability can be improved.

  According to a fourth aspect of the present invention, there is provided a portable plane according to a fourth aspect of the present invention, wherein the portable plane is used by hand, and a control unit for controlling the motor is disposed between the motor and the battery. It is a configuration. According to the portable plane according to the fourth aspect of the present invention, since the control unit that controls the motor is disposed between the motor and the battery, the wiring between the motor and the battery can be shortened most. Thereby, the portable canna can be made compact, and the user's workability can be enhanced. When the control unit for controlling the motor is arranged between the motor and the battery in this way, the control unit is arranged closer to the motor than the battery. Accordingly, it is possible to easily apply the cooling air generated using the rotational driving force of the motor to the control unit, and it is possible to cool the control unit satisfactorily.

  A portable plane according to a fifth aspect of the present invention is a portable plane that is used by being held by hand, and is turned over to a base, a battery holding portion disposed above the base, and the battery holding portion. A battery that is held in a state where According to the portable plane according to the fifth aspect of the invention, the battery is held in an inverted state. Thereby, the lower surface of the battery set in a plane can be arranged upward, and the space above the battery can be efficiently secured. Thereby, the portable canna can be made compact, and the user's workability can be enhanced. If the battery is held by the battery holding portion arranged above the base in this way, the weight of the battery is likely to be applied to the base. As a result, it is possible to satisfactorily secure a load to be applied to the wood, and to efficiently perform the surface processing of the wood.

It is sectional drawing which shows a portable plane in a right-and-left half section. It is sectional drawing which shows the (II)-(II) partial cross-section arrow in FIG. It is sectional drawing which shows the (III)-(III) cross-section arrow in FIG. It is sectional drawing which shows the (IV)-(IV) cross-section arrow in FIG.

  Hereinafter, an embodiment for carrying a portable plane according to the present invention will be described with reference to FIGS. Note that the cross-sectional view of FIG. The cross-sectional view of FIG. 2 shows a (II)-(II) partial cross-sectional arrow view in FIG. The cross-sectional view of FIG. 3 shows the (III)-(III) cross-sectional arrow in FIG. The cross-sectional view of FIG. 4 shows the (IV)-(IV) cross-sectional view in FIG. In the description of the portable plane 10 illustrated below, the description will be made using the front, rear, top, bottom, left and right directions defined in the drawings. The portable plane 10 is an electric tool that is used by being held by hand so as to slide the upper surface of a wood to be surface-finished.

  The portable plane 10 generally includes a base 11, a housing 13, a motor unit 20, a battery mounting unit 45, a grip unit 50, and a cut height adjusting mechanism 70. As these arrangement positions, the motor unit 20 is arranged in front of the battery mounting unit 45, and the cut height adjusting mechanism 70 is arranged in front of the motor unit 20. The motor unit 20 is disposed at a substantially central position in the longitudinal direction of the portable plane 10. The grip part 50 is disposed above the battery mounting part 45. The front portion of the grip portion 50 is disposed above the rear half of the motor portion 20. In addition, the code | symbol 90 illustrated with a dashed-two dotted line is a rechargeable battery used as the power supply of this portable canna 10.

  The lower surface 110 of the base 11 sets the lower surface of the portable plane 10. The lower surface 110 is placed on and in contact with the upper surface of the wood to be surface processed. A housing 13 is integrally provided above the base 11. The housing 13 is provided with a motor accommodating portion 14 that is a space in which the motor portion 20 can be accommodated. A battery mounting part 45 is set integrally with the housing 13 behind the motor part 20. In addition, a grip portion 50 connected to the housing 13 is set above the motor portion 20 and the battery mounting portion 45. A cutting height adjusting mechanism 70 supported by the housing 13 is provided in front of the motor unit 20.

  The motor unit 20 generally includes a motor 21 and an attachment member 31. The motor 21 is a drive source for the portable canna 10. As shown in FIG. 1, the motor 21 is constituted by an outer rotor type motor. The motor 21 is an electric brushless DC motor. The motor 21 has a stator 22 and a rotor 26. The stator 22 is configured by winding a winding 23 around a stator core 220. Specifically, the stator core 220 has a plurality of teeth 222 arranged in the circumferential direction at equal intervals. A winding 23 is wound around each tooth portion 222. The stator core 220 configured as described above is fixed to the housing 13 via the fixing portion 24 as shown in FIG.

  The rotor 26 is configured by attaching a plurality of magnets 27 to a rotor core 260 as shown in FIG. Specifically, a magnet 27 that faces each tooth portion 222 is attached to the inner peripheral surface of the rotor core 260 formed in an annular shape. The number of magnets 27 is set to be equal to the number of teeth portions 222. The rotor core 260 is integrated with the rotor shaft 28 as shown in FIG. The rotor shaft 28 is disposed so as to extend in the left-right direction of the portable canna 10. The rotor shaft 28 is rotatably supported by bearings 291 and 292 that are fixed to the housing 13. The rotor 26 rotates clockwise in the state shown in FIG.

  An annular attachment member 31 is integrally attached to the rotor core 260 on the outer periphery of the rotor core 260. The annular mounting member 31 is formed by extending an annular shape in the left-right direction so as to cover the entire outer periphery of the rotor core 260. Two cutting tools 35 extending in the left-right direction are attached to the outer peripheral surface 32 of the attachment member 31. Specifically, the blade attachment portion 33 is set on the outer peripheral surface 32 at positions every 180 degrees in the circumferential direction. The blade attachment portions 33 are provided at two locations on the opposite sides of the outer peripheral surface 32. The cutting tool 35 is fixed and attached to the cutting tool attaching portion 33 by brazing. The cutting tool 35 is a blade that cuts the upper surface of the wood by receiving the rotation of the rotor 26. A recess 34 in which the outer peripheral surface 32 is recessed is provided in front of the cutting tool mounting portion 33 in the rotation direction. The recess 34 is also provided on the outer peripheral surface 32 of the attachment member 31 so as to extend in the left-right direction, like the blade attachment portion 33.

  A sensor substrate 37 is provided on the left side of the rotor core 260 as shown in FIG. The sensor substrate 37 performs detection related to rotation information of the rotor 26 including position information. The sensor substrate 37 is fixed to the housing 13 with screws 39. The sensor substrate 37 is formed with an appropriate Hall element. The sensor substrate 37 is connected to a controller 40 described later via a signal line 38 (see FIG. 2). The sensor substrate 37 converts the detected rotation information of the rotor 26 into a signal and transmits it to the controller 40 through the signal line 38.

  A machining opening 30 is set in the base 11 and the housing 13 around the lower portion of the motor unit 20. The processing opening 30 is set such that the lower end 310 of the attachment member 31 can be exposed to the outside so that the wood can be surface-finished by the cutting tool 35 attached to the attachment member 31. Incidentally, the lower end 310 of the attachment member 31 is located below the lower surface 110 of the base 11. On the other hand, the motor accommodating portion 14 has an inner peripheral surface 140 that faces the outer peripheral surface 32 of the mounting member 31. An accommodation opening 15 is provided at the top and front of the inner peripheral surface 140. The housing opening 15 is set by opening the upper side along the front side surface 141 of the inner peripheral surface 140 of the motor housing portion 14. The accommodation opening 15 is an opening that leads from the motor accommodation portion 14 to the cutting powder accommodation chamber 16.

  The cutting powder storage chamber 16 is provided above the motor unit 20. The cutting powder storage chamber 16 is set by being partitioned by the housing 13. The cutting powder storage chamber 16 is a space in which cutting powder of wood generated by cutting the cutting tool 35 is collected. In order to send the cutting powder to the cutting powder storage chamber 16, wind generated by winding by rotation of the motor 21 is used. Specifically, when the motor 21 rotates in the direction of the arrow shown in FIG. 1, wind is generated from the lower side to the upper side on the front side of the motor housing portion 14. Sent to chamber 16.

  A cooling opening 17 is provided on the rear side surface 142 of the inner peripheral surface 140 of the motor housing portion 14. The cooling opening 17 is set by opening the rear side surface 142 of the inner peripheral surface 140 of the motor housing portion 14. The cooling opening 17 is an opening that communicates from the motor housing part 14 to the controller holding part 18. The controller holding unit 18 is provided behind the motor unit 20. The controller holding part 18 is set by being partitioned into the housing 13. The controller holding unit 18 holds the controller 40. The controller 40 receives wind (rolled air) generated by the rotation of the motor 21 in the direction of the arrow shown in FIG. The wind (winding wind) generated by the rotation of the motor 21 is the wind after the cutting powder is stored in the cutting powder storage chamber 16 described above. For this reason, the air that cools the controller 40 is a clean air with little mixing of cutting powder, and after the controller 40 is cooled, it escapes to the battery mounting portion 45 side.

  The controller 40 controls the rotational drive of the motor 21 and corresponds to a control unit according to the present invention. The controller 40 includes a controller board (not shown). The controller board is provided with a microcomputer, a field effect transistor (FET), and the like. The controller 40 is connected to the sensor substrate 37 by a signal line 38. The controller 40 reads rotation information from the sensor substrate 37 and controls power supply to the stator 22. The controller 40 is connected to the winding 23 of the stator 22 from the rechargeable battery 90 mounted on the battery mounting portion 45 by a power line 48 so that power can be supplied through the controller 40. The controller 40 is also connected to the operation switch 55 so that a signal is transmitted from the operation switch 55 described later. Incidentally, when an ON input signal is transmitted from the operation switch 55, the controller 40 supplies power from the rechargeable battery 90 to the winding 23 of the stator 22 to rotate the motor 21.

  A battery mounting portion 45 is provided in the housing 13 on the rear side of the controller 40. The battery mounting unit 45 is configured so that the rechargeable battery 90 can be mounted. The battery mounting portion 45 corresponds to the battery holding portion according to the present invention. That is, the controller 40 is disposed between the motor 21 and the rechargeable battery 90. The battery mounting portion 45 is disposed above the base 11 and is provided at an upper and lower position that substantially coincides with the upper and lower positions of the rotor shaft 28. The battery mounting part 45 is configured so that the rechargeable battery 90 can be mounted, and corresponds to the battery holding part according to the present invention. The battery mounting portion 45 is set so that the upper side is the mounting surface. For this reason, the rechargeable battery 90 attached to the battery attachment unit 45 is held by the battery attachment unit 45 in an inverted state. Specifically, the battery mounting portion 45 is provided with a terminal 46 to which the rechargeable battery 90 is attached and detached. The terminal 46 is supported on the housing 13 so as to face upward. The terminal 46 is configured to correspond to a slide-mounted rechargeable battery 90.

  As shown in FIG. 4, the rechargeable battery 90 is attached by sliding the terminal 46 from the left to the right. In addition, the rechargeable battery 90 is removed by sliding the terminal 46 from right to left. When the rechargeable battery 90 is mounted on the terminal 46, the hook 96 of the rechargeable battery 90 is locked to the locking portion 47 set on the battery mounting portion 45. Further, when removing the rechargeable battery 90 from the terminal 46, the lock-off button 95 of the rechargeable battery 90 is pulled upward to release the hook 96 from the engaging portion 47 and slide from right to left. Note that the terminal 46 and the controller 40 are connected to each other by a power line 48 for power supply.

  As shown in FIG. 1, when the rechargeable battery 90 is mounted on the terminal 46, the rechargeable battery 90 is held on the terminal 46 with the lower surface 91 facing upward. The rechargeable battery 90 is of a type in which the lower surface 91 of the case is set as a plane and the battery cells installed in the case are arranged in a row. The rechargeable battery 90 attached to the terminal 46 is disposed above the base 11 and below the grip portion 50. However, the space between the rechargeable battery 90 and the grip portion 50 is appropriately set by the lower surface 91 set in a plane. It has been secured. That is, the space of the grip part 50 for gripping with the hand of the grip part 50 to be described later is efficiently secured. As shown in FIG. 2, the left-right width of the rechargeable battery 90 attached to the terminal 46 is set to be within the left-right width of the motor 21.

  A grip portion 50 is provided above the battery mounting portion 45. The grip part 50 is a so-called loop-shaped handle. The grip part 50 is formed by the housing 13. Here, the grip part 50 is arrange | positioned in the left-right intermediate position of the stator 22 of the motor 21 by the top view. Moreover, the grip part 50 is arrange | positioned in the left-right intermediate position of the rechargeable battery 90 with which the terminal 46 was mounted | worn by top view. That is, the grip part 50 is set in the housing 13 in view of the left / right balance between the motor 21 and the rechargeable battery 90.

  A base 11 is disposed below the battery mounting portion 45 via a housing 13. As shown in FIG. 1, a leg member 59 is attached to the base 11 so as to be capable of rotational displacement near the rear end of the base 11. When the leg member 59 is disposed at the lower position shown in the figure, when the portable plane 10 is placed on the wood, the lower surface 110 of the base 11 is lifted from the wood. Accordingly, the cutting tool 35 attached to the attachment member 31 is also lifted from the wood, and the cutting tool 35 does not damage the wood. When the portable plane 10 is slid forward on the wood processing surface, the leg member 59 is displaced from the lower position to the upper position by hitting the wood, so that the cutting tool 35 can be sufficiently applied to the wood processing surface.

  As shown in FIG. 1, the grip portion 50 has a D shape when viewed from the side. The grip part 50 is formed in a shape in which the rear part 51 extends upward from near the rear end of the base 11 and the front part 52 extends upward from near the front end of the cutting powder storage chamber 16 to connect them. In addition, as shown in FIG. 1, the shape which inclines upward is selected as the grip part 50 goes ahead. The grip unit 50 is provided with an operation switch 55 for performing an on / off operation. The operation switch 55 includes a switch body 551, an operation trigger 553, a return spring 555, and an operation restriction button 557.

  The switch body 551 is configured by a contact switch connected to the controller 40. The operation trigger 553 is configured to be pullable. As for the operation trigger 553, the contact of the switch body 551 is turned on by a user's pulling operation. The switch body 551 that is turned on transmits an on-input signal to the controller 40. The return spring 555 biases the operation trigger 553 back to the initial position when the user stops the pulling operation. The operation restriction button 557 can be switched between a lock position and a lock-off position. When the operation restriction button 557 is in the lock position, the pull operation of the operation trigger 553 is disabled, and when it is in the lock position, the pull operation of the operation trigger 553 is performed. Is in a possible state.

  A cut height adjusting mechanism 70 is provided in front of the motor unit 20. The cut height adjusting mechanism 70 is provided on the housing support portion 131 of the housing 13. The cut height adjusting mechanism 70 generally includes a displacement base 71, a fixed shaft 72, a hexagon nut 73, an operation knob 74, and an urging spring 75. The displacement base 71 can be displaced relative to the housing support portion 131 in the vertical direction. For this reason, the lower surface 710 of the displacement base 71 changes its vertical position relative to the lower surface 110 of the base 11 described above. The lower surface 710 whose relative vertical position changes in this way also changes its relative vertical position with respect to the lower end 310 of the mounting member 31. That is, the cutting height adjusting mechanism 70 can adjust the cutting depth of the cutting tool 35 that cuts the upper surface of the wood by changing the protruding amount protruding from the machining opening 30.

  Specifically, the displacement base 71 has the lower surface 710 described above, and is provided with a spring accommodating portion 711 at the top. The spring accommodating portion 711 accommodates an urging spring 75 described later. The fixed shaft 72 is disposed so as to extend in the vertical direction, and the lower end 721 is integrated with the displacement base 71. On the other hand, the upper part 722 of the fixed shaft 72 is formed as a male screw into which the hexagon nut 73 is screwed. The hexagon nut 73 is fitted and accommodated in the fitting interior 743 of the operation knob 74. That is, the fitting interior 743 has a hexagonal inner peripheral surface into which the hexagonal outer peripheral surface of the hexagon nut 73 is fitted. For this reason, the hexagon nut 73 rotates integrally with the operation knob 74. When the hexagon nut 73 rotates integrally with the operation knob 74, it is displaced relative to the upper part 722 of the fixed shaft 72 formed as a male screw.

  A lower end 731 of the hex nut 73 can be brought into contact with the operation knob 74. A lower end 741 of the operation knob 74 can come into contact with the housing support portion 131. For this reason, for example, when the hexagon nut 73 is relatively displaced with respect to the upper portion 722 of the fixed shaft 72, the hexagon nut 73 and the operation knob 74 are supported from the housing support portion 131, and the fixed shaft 72 is attached to the biasing spring 75. It is displaced relative to the housing support 131 against the force so as to rise upward. Thus, when the fixed shaft 72 rises upward, the displacement base 71 integrated with the fixed shaft 72 also rises upward with respect to the housing support portion 131. On the contrary, when the hexagon nut 73 is relatively displaced with respect to the upper portion 722 of the fixed shaft 72, the length between the hexagon nut 73 and the displacement base 71 becomes long and is displaced by the urging force of the urging spring 75. The base 71 is lowered downward with respect to the housing support portion 131.

  According to the portable plane 10 configured as described above, the following operational effects can be achieved. In other words, according to the portable can 10 described above, since the motor 21 is composed of an outer rotor type motor, the rotational torque is increased compared to the inner rotor type motor. Accordingly, the cutting tool 35 can be attached to the attachment member 31 on the outer periphery of the rotor 26 of the outer rotor that is a part of the motor 21 without interposing a reduction means such as a belt or a gear. Therefore, the speed reduction means for increasing the rotational torque can be eliminated, and the user can easily handle the weight reduction and compactness. Moreover, according to the portable canna 10 described above, the motor 21 can be configured without a brush. Thus, the motor 21 can be reduced in weight and size, and the portable canna 10 itself is reduced in weight and size.

  According to the portable canna 10 described above, the rechargeable battery 90 is disposed below the grip portion 50 held by the hand, so that the bulk of the rechargeable battery 90 is within the dimensions of the portable canna 10 in the vertical and horizontal directions. Can fit in. Thereby, the portable can 10 can be made compact, and the user's workability can be enhanced. In addition, when the rechargeable battery 90 is disposed below the grip portion 50 held by the hand in this way, the weight of the rechargeable battery 90 is applied at a position below the hand grip position. As a result, the center of gravity of the portable canna can be lowered from the position held by the hand and the operation stability can be improved.

  According to the portable plane 10 described above, since the controller 40 that controls the motor 21 is disposed between the motor 21 and the rechargeable battery 90, the wiring between the motor 21 and the rechargeable battery 90 is the shortest. can do. Thereby, the portable can 10 can be made compact, and the user's workability can be enhanced. When the controller 40 that controls the motor 21 is disposed between the motor 21 and the rechargeable battery 90 as described above, the controller 40 is disposed closer to the motor 21 than the rechargeable battery 90. Thereby, the cooling air generated using the rotational driving force of the motor 21 can be easily applied to the controller 40, and the controller 40 can be cooled well.

  According to the portable plane 10 described above, the rechargeable battery 90 is held in an inverted state. As a result, the lower surface 91 of the rechargeable battery 90 set in a plane can be disposed upward, and the space above the rechargeable battery 90 can be efficiently secured. Thereby, the portable can 10 can be made compact, and the user's workability can be enhanced. When the rechargeable battery 90 is held by the battery holding portion 45 arranged above the base 11 in this way, the weight of the rechargeable battery 90 is likely to be applied to the base 11. As a result, it is possible to satisfactorily secure a load to be applied to the wood, and to efficiently perform the surface processing of the wood.

  It should be noted that the portable plane according to the present invention is not limited to the above-described embodiment, and various changes have been made appropriately in various aspects of the invention grasped from the above-described embodiment. It is good also as a form. For example, in the above-described embodiment, the drive source is an outer rotor type brushless DC motor. However, if the features of the drive source are grasped as an outer rotor type motor, the configuration is not limited to the above-described brushless DC motor, and for example, a motor with a brush may be used. Further, if the feature of the drive source is grasped as a brushless motor, it is not limited to the form of the outer rotor type motor described above, and may be constituted by, for example, an inner rotor type motor.

  In the embodiment described above, the rechargeable battery 90 is disposed below the grip portion 50 between the rear portion 51 and the front portion 52 of the grip portion 50. However, if the features of the position where the rechargeable battery is disposed are grasped as below the grip, for example, the rechargeable battery is disposed on the rear side of the rear portion 51 of the grip portion 50, or the front portion 52 of the grip portion 50, for example. A rechargeable battery may be arranged on the front side. Furthermore, the position where the rechargeable battery is disposed may be disposed below the grip portion 50, for example, below the right or left side. Further, the shape of the grip portion 50 is formed in a D shape in a side view. However, as the grip according to the present invention, an appropriate shape can be used as long as it is disposed above the battery. You can choose.

  Further, in the above-described embodiment, the controller 40 (control unit) that controls the motor 21 is disposed between the motor 21 and the rechargeable battery 90. However, if the feature of the position where the control unit is arranged is grasped as between the motor and the battery, for example, an appropriate filter member is interposed between the motor 21 and the controller 40, or the motor 21 and the controller, for example. For example, an appropriate cooling air guide structure may be provided between 40 and 40. As this cooling air guide structure, an appropriate labyrinth structure for suppressing intrusion of dust may be set. Moreover, an appropriate inclusion may be provided between the controller 40 and the rechargeable battery 90.

  In the above-described embodiment, the rechargeable battery 90 is held by the battery mounting portion 45 in an inverted state. That is, the rechargeable battery 90 is held by the battery mounting portion 45 with the lower surface 91 facing upward. However, if the battery features held by the battery holding part are grasped as an arrangement state in which the battery is turned upside down, for example, a battery mounting part is provided on the rear side, front side or upper side of the grip part 50 and arranged. There may be. Moreover, as a battery hold | maintained at a battery holding | maintenance part, appropriate attachment / detachment can be selected, without being limited to the slide-type attachment / detachment example of an above-described form.

DESCRIPTION OF SYMBOLS 10 Portable plane 11 Base 110 Lower surface 13 Housing 131 Housing support part 14 Motor accommodating part 140 Inner peripheral surface 141 Front side surface 142 Rear side surface 15 Accommodating opening 16 Cutting powder accommodating chamber 17 Cooling opening 18 Controller holding part 20 Motor part 21 Motor (Outer rotor type motor, brushless motor)
22 Stator 220 Stator core 222 Teeth portion 23 Winding 24 Fixed portion 26 Rotor 260 Rotor core 27 Magnet 28 Rotor shafts 291 and 292 Bearing 30 Processing opening 31 Mounting member 310 Lower end 32 Outer peripheral surface 33 Cutting tool mounting portion 34 Recess 35 Cutting tool 37 Sensor substrate 38 Signal line 39 Screw 40 Controller (control unit)
45 Battery mounting part (battery holding part)
46 Terminal 47 Locking part 48 Power line 50 Grip part (grip)
51 Rear portion 52 Front portion 55 Operation switch 551 Switch body 553 Operation trigger 557 Operation restriction button 70 Cutting height adjustment mechanism 71 Displacement base 710 Lower surface 711 Spring housing portion 72 Fixed shaft 721 Lower end 722 Upper portion 73 Hexagon nut 731 Lower end 74 Operation knob 741 Lower end 743 Internal fitting 90 Rechargeable battery (battery)
91 Rechargeable battery bottom surface 95 Lock-off button 96 Hook

Claims (5)

A portable canna that can be used by hand.
A portable canna where the drive source is an outer rotor type motor. A portable canna that can be used by hand.
A portable canna where the drive source is a brushless motor. A portable canna that can be used by hand.
A portable canna where a battery is placed below the grip that is gripped by hand. A portable canna that can be used by hand.
A portable plane in which a controller for controlling the motor is disposed between the motor and the battery. A portable canna that can be used by hand.
Base and
A battery holder disposed above the base;
And a battery held by the battery holding unit in an inverted state.

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