JP2018043372A - Portable processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the visibility of a display, in view of the fact that in a portable circular saw with which a user performs cutting by a movement operation, a user needs to view the display in a tight posture like looking inside due to that the display for notifying the operational state of an electric motor is conventionally arranged below a handle.SOLUTION: A display 53 for notifying an operational state of an electric motor 11 is arranged in a position which is shifted from the lower side of a handle part 30 to a side, and is not behind the handle part 30 when viewed from a user. The visibility of the display 53 is further increased by arranging in a portion which is at an opposite side to a blade tool, and in which scattering of powder dust is relatively less.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cutting machine or the like used when cutting a cutting material such as wood, for example, and relates to a portable processing machine that a user moves and operates by hand.

  In a cutting machine used for cutting wood, etc., a form in which a cutting tool is cut into a cutting material by a user gripping and moving the handle while being placed on the upper surface of the cutting material. There are things. This type of cutting machine includes a base that is brought into contact with the upper surface of the cutting material, and a cutting machine body that is supported on the upper surface side of the base. The cutting machine body includes an electric motor as a drive source and a circular cutting tool that is rotated by the electric motor.

  This type of cutting machine is provided with a controller mainly for controlling the operating state of the electric motor and a display unit for displaying the operating state. Conventional techniques related to the controller and the display unit are disclosed in the following patent documents. In these patent documents, a technique is disclosed in which a display unit is arranged on an upper surface of a portion below a handle unit and relatively easy to be viewed by a user.

JP 2008-229763 A Japanese Patent Laying-Open No. 2015-178226

  However, since the conventional display unit is arranged below the handle unit, the hand holding the handle unit is in the way and is difficult to see from directly above the handle unit. It is necessary to visually check the display unit, and in this respect, it is necessary to further improve the visibility of the display unit.

  An object of the present invention is to improve the visibility of a display unit for mainly displaying an operation state of a main body unit in a processing machine in which a user grips and moves a handle unit.

  The above-described problems are solved by the following inventions. 1st invention is a portable processing machine provided with the electric motor, the controller which controls operation | movement of an electric motor, and the holding part hold | gripped when a user performs a moving operation. In 1st invention, the display part which alert | reports various information visually is provided. The display unit has a configuration that extends rearward of the motor shaft of the electric motor and is disposed at a position that is not hidden by the gripping unit when viewed from above and at a right angle from the rear.

  According to the first aspect of the invention, since the gripping part does not get in the way when the user who grips the gripping part visually recognizes the display part from the upper rear side, the user takes a cramped posture such as looking into the display part. The display part can be visually observed with an easy posture without taking. A user is positioned behind the portable processing machine, holds the grip portion, and performs a forward movement operation (processing operation) of the portable processing machine.

  According to a second invention, in the first invention, the gripping portion extends along the front-rear direction, and the display portion is a portable process disposed on the opposite side of the processing blade with respect to the gripping portion. Machine.

  According to the second aspect of the invention, it is possible to suppress dust generated during processing from being sprayed on the display unit and maintain good visibility for a long time. Further, the user can visually recognize the display unit away from the dust generation site, and in this respect, the visibility of the display unit and the workability of the portable processing machine can be improved.

  According to a third invention, in the first or second invention, the display unit has a light emitting unit for notifying various information by light emission, and a light guide member is interposed between the light emitting unit and the light source. It is a portable processing machine.

  According to 3rd invention, the visibility of the display part in a dark place etc. can be improved. Further, even when the light emitting unit and the light source are separated from each other, the light emitting unit can efficiently emit light by the light guide unit, and high visibility of the light emitting unit and thus the display unit can be secured.

  In a fourth aspect based on the third aspect, the display unit has a flat plate shape and is disposed in a posture inclined obliquely upward and rearward, and the light guide member is orthogonal to the display unit. It is a portable processing machine extended along.

  According to 4th invention, the visibility of the said display part of the user who visually recognizes a display part from back diagonally upward of the said portable processing machine can be improved. Further, by extending the light guide member in a direction orthogonal to the display unit, the light emitting unit in the tilted display unit emits light efficiently and the visibility of the light emitting unit and thus the display unit is ensured.

  A fifth invention is the portable processing machine according to the fourth invention, wherein the controller is disposed in an inclined posture along the display unit between the electric motor and the display unit.

  According to the fifth aspect, the flat controller can be compactly arranged in the limited space between the electric motor and the display unit.

  6th invention is the portable processing machine which made the upper part of a controller approach the electric motor side rather than the outline of a motor housing.

  According to the sixth aspect, the controller can be arranged more compactly between the electric motor and the display unit.

  A seventh aspect of the present invention is the portable device according to any one of the first to sixth aspects, further comprising a battery attachment portion for attaching a battery as a power source, and a controller disposed between the electric motor and the battery attachment portion. It is a processing machine.

  According to the seventh aspect of the present invention, in the rechargeable portable processing machine using a battery as a power source, by arranging the controller between the electric motor and the battery mounting portion, the routing route of the power line and the signal line is shortened. Meanwhile, the visibility of the display unit can be improved.

  According to an eighth invention, in any one of the first to seventh inventions, the electric motor is a brushless motor, and the controller is a portable processing machine provided with a control circuit for brushless motor control.

  According to the eighth invention, the operation control of the electric motor is performed by the control circuit of the controller.

  A ninth invention is a portable processing machine according to any one of the first to eighth inventions, wherein the display unit is provided integrally with the controller.

  According to the ninth aspect, it is possible to improve the assembling property of the portable processing machine while reducing the number of parts.

1 is an overall side view of a portable processing machine according to an embodiment of the present invention. In this embodiment, a portable marnoco is shown as an example of a portable processing machine. It is (II) arrow directional view of FIG. 1, Comprising: It is the whole top view of a portable processing machine. It is (II) arrow directional view of FIG. 1, Comprising: It is the whole top view of a portable processing machine. In this figure, the electric motor and the controller housing are shown in cross section. It is the (IV)-(IV) sectional view taken on the line of FIG. 1, and it is the figure which looked at the longitudinal cross-section of the portable processing machine from the front side. FIG. 3 is a cross-sectional view taken along line (V)-(V) in FIG. 2, and is a vertical cross-sectional view of the tool main body. FIG. 3 is a cross-sectional view taken along line (VI)-(VI) in FIG. 2, and is a view of a vertical cross section of an electric motor and a controller housing portion viewed from the back side. It is a perspective view of a controller. It is an expansion longitudinal cross-sectional view of a controller accommodating part.

  Next, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, in the present embodiment, as an example of the portable processing machine 1, a portable marvel that is cut by being moved forward (cutting direction) by a user's manual operation is illustrated. A user is located on the rear side of the portable processing machine 1 and performs a moving operation (cutting operation) of the portable processing machine 1. In the following description, the front and rear, right and left, and up and down directions of members and configurations are used with reference to the user. The portable processing machine 1 includes a rectangular flat base 2 that is brought into contact with the upper surface of the cutting material W, and a tool body 10 that is supported on the upper surface side of the base 2.

  As shown in FIGS. 1 and 2, a guide part 2 a for aligning the smear lines is provided at the front part of the base 2. The tool body 10 includes a circular cutting tool 12 that rotates using an electric motor 11 as a drive source. The range of the upper half circumference of the blade 12 is covered with a fixed cover 13. The range of the lower half circumference of the cutting tool 12 is projected to the lower surface side of the base 2. This protruding portion is cut into the cutting material W to be cut. The cutting tool 12 rotates counterclockwise in FIG. The rotating direction of the blade 12 is indicated by a white arrow 13 a displayed on the front side of the fixed cover 13.

  In FIG. 1, a crossing portion between the blade 12 rotating in the counterclockwise direction and the lower surface of the base 2 is a cutting portion C. Cutting powder is blown up from the cutting site C. The blown-up cutting powder is blown up into the fixed cover 13 and collected, and part of it is deposited on the base 2. As will be described later, the cutting powder deposited on the base 2 is blown off by the motor cooling air to ensure the visibility of the cutting portion C and its surroundings.

  The peripheral edge (cutting edge) of the range of the lower half circumference of the cutting tool 12 and protruding to the lower surface side of the base 2 is covered with the movable cover 14. The movable cover 14 is supported so as to be openable and closable along the periphery of the blade 12. The movable cover 14 is urged in a closing direction (counterclockwise direction in FIG. 1) by a spring not visible in the drawing. When the portable processing machine 1 is moved forward with the front end of the movable cover 14 in contact with the end of the cutting material W, the movable cover 14 is relatively opened and the blade 12 is exposed. Then, the exposed portion is cut into the cutting material W. An opening / closing lever 14a is provided at the rear of the movable cover 14 to be gripped when the user manually performs opening / closing operation.

  The tool body 10 is supported on the upper surface of the base 2 so as to be tiltable to the left and right via the front and rear tilt support portions 15 and 16. The tool 12 can be tilted left and right by tilting the tool body 10 left and right with respect to the base 2. For example, by inclining the tool main body 10 to the right side by 45 °, the cutting tool 12 can be cut at 45 ° with respect to the lower surface of the base 2, thereby performing cutting with the cutting surface inclined at 45 °. Can do.

  The tool body 10 is supported on the upper surface of the base 2 so as to be swingable up and down via a vertical swing support shaft 17. By changing the vertical position of the tool body 10, the protruding dimension of the cutting tool 12 to the lower surface side of the base 2 can be changed. By changing the protruding dimension of the cutting tool 12 to the lower surface side of the base 2, the cutting depth of the cutting tool 12 with respect to the cutting material W can be changed. The cutting depth of the cutting tool 12 and the vertical movement position of the tool body 10 can be fixed by tightening the fixing lever 18 provided on the rear back side of the fixing cover 13.

  As shown in FIGS. 2 to 4, the electric motor 11 is coupled to the back side of the fixed cover 13 via a gear head portion 19. The gear case 19 a of the gear head portion 19 is integrally provided on the back side of the fixed cover 13. The gear case 19a accommodates a two-stage reduction gear train by meshing of helical gears. The first driven gear 19b meshes with the output gear portion 11j of the motor shaft 11d. The first driven gear 19b is fixed on the intermediate shaft 19c. A second driven gear 19d is coaxially provided on the right side of the intermediate shaft 19c. The intermediate shaft 19c is rotatably supported by the gear case 19a via bearings 19e and 19f. The intermediate shaft 19c is disposed in parallel with the motor shaft 11d. The second driven gear 19d is meshed with the third driven gear 19g. The third driven gear 19g is fixed on the spindle 20. The spindle 20 is rotatably supported by the gear case 19a via bearings 20a and 20b. The spindle 20 is disposed in parallel with the motor shaft 11d and the intermediate shaft 19c. A tip end portion (right end portion) of the spindle 20 protrudes from the gear head portion 19 into the fixed cover 13. The cutting tool 12 is screwed to the front end portion of the spindle 20 with a single fixing screw 21 in a state of being sandwiched between the outer flange 23 and the inner flange 24. As shown in FIG. 1, the intermediate shaft 19c is disposed in parallel so as to be shifted rearward from the line connecting the motor shaft 11d and the spindle 20, so that the motor shaft 11d is disposed closer to the spindle 20 in the vertical direction. Has been. Thereby, the downsizing of the tool main body 10 is achieved.

  The electric motor 11 is coupled to the back side of the gear case 19a. A DC brushless motor is used for the electric motor 11. As shown in FIGS. 3 and 4, the electric motor 11 includes a stator 11b fixed along the inner surface of the motor housing 11a, and a rotor rotatably supported by the motor housing 11a on the inner peripheral side of the stator 11b. 11c. A sensor substrate 11m on which a magnetic sensor for detecting the rotational position of the rotor 11c is mounted is disposed on the back side of the stator 11b.

  The rotor 11c is fixed to the motor shaft 11d. The left end portion (back side) of the motor shaft 11d is rotatably supported by the left end portion of the motor housing 11a via a bearing 11e. A cooling fan 11g is attached to the motor shaft 11d on the right side of the rotor 11b. The left side of the cooling fan 11g is covered with a baffle plate 11h. The right end portion (front side) of the motor shaft 11d on the right side of the cooling fan 11g is rotatably supported by the gear case 19a via a bearing 11f. An output gear portion 11j is provided at the right end portion of the motor shaft 11d. As described above, the output gear portion 11j is meshed with the first driven gear 19b of the gear head portion 19.

  Between the bearing 11f on the right end side and the cooling fan 11g, the motor shaft 11d is provided with a two-sided width portion 11k. As shown in FIG. 3, the lock lever 27 is provided along the coupling | bond part of the gear case 19a and the motor housing 11a. The lock lever 27 is provided so as to be movable in the radial direction with respect to the motor shaft 11d. The motor shaft 11d can be locked by moving the lock lever 27 to engage with the two-surface width portion 11k. By locking the motor shaft 11d, the rotation of the spindle 20 can be locked to facilitate the replacement work of the cutting tool 12.

  As shown in FIG. 6, a large number of intake holes 11i are provided on the back surface of the motor housing 11a. When the cooling fan 11g is rotated by the activation of the electric motor 11, the outside air is introduced into the motor housing 11a through the intake hole 11i. As shown in FIG. 3, the outside air (motor cooling air) introduced into the motor housing 11a through the intake holes 11i flows to the right (front direction), thereby cooling the stator 11b, the rotor 11c, and the like.

  The motor cooling air is blown into the fixed cover 13 from the inner peripheral side of the baffle plate 11h through the gear case 19a. A part of the motor cooling air is blown into the duct 25 through the inner peripheral side of the baffle plate 11h. As shown in FIG. 1, the front end side (blowout port 25a) of the duct 25 faces the direction of the guide portion 2a. For this reason, the motor cooling air blown into the duct 25 is blown out toward the guide portion 2 a of the base 2. The cutting powder deposited on the guide portion 2a is blown off by the motor cooling air blown from the duct 25. Moreover, the cutting powder deposited on the cutting part C is blown away by the motor cooling air blown into the fixed cover 13. By blowing off the cutting powder of the cutting part C and the guide part 2a, the user can clearly see the guide part 2a and the smear line in addition to the cutting part C, thereby quickly performing an accurate cutting operation. be able to.

  As shown in FIG. 1, a lighting fixture 26 is disposed on the side of the cutting site C. The visibility is also ensured by the illumination tool 26 illuminating the cut portion C brightly.

  The tool body portion 10 is provided with a handle portion 30 for a user to hold. As shown in FIGS. 5 and 6, the handle portion 30 includes a standing portion 31 extending upward from the motor housing 11 a, a gripping portion 32 extending in a direction descending rearward from the upper portion of the standing portion 31, and a rear portion of the gripping portion 32. It has a loop shape including a connecting portion 33 coupled to the rear portion of the housing 11a. The user mainly moves the portable processing machine 1 while holding the grip portion 32 with one hand. A switch lever 34 and a switch body 37 are housed in the upper part of the grip portion 32. The switch lever 34 protrudes to the inside of the portion where the standing portion 31 and the grip portion 32 are connected in a mountain shape. When the lock-off button 35 is released with the fingertip of the hand gripping the grip portion 32 and the switch lever 34 is pulled upward, the switch body 37 is turned on. When the switch body 37 is turned on, the electric motor 11 is activated and the blade 12 is rotated. On the upper side of the switch lever 34, a lock-off button 35 for preventing the operation of the switch lever 34 is provided. An inadvertent pulling operation of the switch lever 34 is prevented by the lock-off button 35.

  A hexagon wrench 36 can be inserted into the holding hole 31a and held under the upright portion 31. Using this hexagon wrench 36, the fixing screw 21 for fixing the blade 12 can be tightened and loosened. The gripping portion 32 is inclined in the direction of going down from the upper portion of the standing portion 31 to the rear portion of the connecting portion 33. Since the grip portion 32 is inclined in the backward direction, the user can press the portable processing machine 1 toward the cutting material W in an easy posture. In this respect, the portable processing machine 1 Workability is improved. An elastomer resin layer 32 a is covered around the upright portion 31.

  A battery attachment portion 40 is provided at the rear portion of the connecting portion 33. The battery mounting part 40 is provided in a state of protruding leftward from the rear part of the connecting part 33. One battery pack 41 can be attached along the lower surface of the battery attachment portion 40. On the lower surface of the battery mounting portion 40, a pair of rail portions and positive and negative connection terminals are provided. The battery pack 41 is mechanically and electrically connected by sliding from the side with respect to the lower surface of the battery mounting portion 40. As shown in FIGS. 2 and 3, the battery pack 41 can be attached to the battery attachment portion 40 by sliding it almost horizontally from left to right. On the contrary, the battery pack 41 can be removed from the battery mounting part 40 by sliding horizontally from the mounted state to the left.

  The battery pack 41 is a lithium ion battery having an output voltage of 18 V, and can be repeatedly used by being removed from the battery mounting portion 40 and charged by a separately prepared charger. The removed battery pack 41 can be used as a power source with other rechargeable electric tools such as a screw tightener and an electric drill.

  Between the battery mounting part 40 and the electric motor 11, the controller 33 is provided in the connecting part 33. Similar to the battery mounting portion 40, the controller housing portion 50 is also provided in a state of protruding to the left. The controller accommodating portion 50 includes an accommodating portion case 51 that partitions and forms a substantially flat internal space. The housing case 51 is integrally formed when the motor housing 11 a of the electric motor 11, the connecting portion 33 of the handle portion 30, and the battery mounting portion 40 are molded with resin.

  As shown in FIGS. 5 and 6, the housing case 51 has a substantially flat plate shape, and is provided in a direction inclined in a downward direction. A controller 52 is housed inside the housing case 51. As shown in FIG. 7 and FIG. 8, the controller 52 is a resin board in which a control board 52a for mainly controlling the operation of the electric motor 11 is housed in a shallow case 52b and has a generally rectangular flat plate shape. Yes. The controller 52 switches a current of the electric motor 11 based on a control circuit that transmits a control signal based on the rotational position information of the rotor 11c detected by the sensor substrate 11m, and a control signal received from the control circuit. A drive circuit and an auto-stop circuit that cuts off the power supply to the electric motor 11 so as not to be overdischarged or overcurrent according to the detection result of the state of the battery pack 41 are mounted. As shown in FIGS. 5 and 6, the controller 52 is accommodated in a posture inclined in the same direction in an accommodation case 51 provided to be inclined downward in the backward direction. For this reason, the upper surface of the controller 52 is directed to the user side (backward and obliquely upward). In the present embodiment, the housing case 51 and the controller 52 are inclined about 45 ° toward the user side.

  Since the accommodating part case 51 and the controller 52 are inclined in the direction in which the upper surface side is directed to the user side, the front side is positioned higher than the rear side. Moreover, as shown in FIGS. 5 and 6, the front portion of the housing case 51 is provided so as to bite inward from the rear portion of the motor housing 11a. As a result, the upper side of the controller 52 is located on the radially inner side and the lower side is located on the radially outer side with respect to the outer shape of the motor housing 11a (outer circle centered on the motor axis J). . As a result, the controller 52 and thus the controller housing portion 50 are compactly arranged between the electric motor 11 and the battery mounting portion 40.

  On the upper surface of the housing case 51, there is provided a display unit 53 for visually informing various information such as the operating state of the electric motor 11. As shown in FIG. 2, the display unit 53 is disposed at a position that is largely shifted to the left side from below the handle unit 30. The display unit 53 has a flat plate shape, and is arranged in a posture in which the rear side is lowered like the upper surface of the housing unit case 51 and inclined by about 45 ° toward the user. Details of the display unit 53 are shown in FIG. The display unit 53 includes a plurality of light emitting units 53a and 53b that notify various information by light emission, and a rectangular flat plate base 53c that holds the light emitting units 53a and 53b. The user can obtain various types of information by viewing the light emission state of the light emitting unit 53a. In FIG. 8, three thin prismatic light emitting portions 53a are shown on the upper side, and one thick cylindrical light emitting portion 53b is shown on the lower side.

  The three light emitting parts 53a and one light emitting part 53b are provided as part of one component manufactured by molding a transparent resin. For this reason, at the time of the assembly or maintenance of the display unit 53, the three light emitting units 53a and the one light emitting unit 53b can be handled as one component. Three light emitting portions 53a and one light emitting portion 53b are inserted and held in a holding hole provided in the base 53c. The display unit 53 is held in a state in which a holding hole 51 a provided in the upper surface of the housing unit case 51 is closed by the base 53 c. Each light emitting portion 53a, 53b extends in a direction orthogonal to the base 53c and is directed to the upper surface of the controller 52.

  As shown in FIG. 7, on the upper surface of the controller 52, a frame portion 52e for partitioning and forming a plurality of frame holes 52c and 52d is provided. A light source (LED) mounted on the control board 52a is located below the plurality of frame holes 52c and 52d. In FIG. 7, the light source is located below the left three frame holes 52c. In FIG. 7, the light source is also located below one right frame hole 52d. The display unit 53 is integrated along the upper surface of the controller 52 by elastically fitting the base 53c of the display unit 53 to the frame unit 52e of the controller 52. Thereby, the controller 52 and the display part 53 can be handled as one component.

  As shown in FIG. 8, the display unit 53 is integrated along the upper surface of the controller 52, so that the three light emitting units 53a of the display unit 53 are positioned one above each other above the upper three frame holes 52c. In addition, one light emitting portion 53b of the display portion 53 is positioned to face the upper one frame hole 52d. When the light source on the control board 52a is turned on or blinks, the light is guided to the light emitting portions 53a and 53b and emitted from the upper end surface. The user can check the operation state of the portable processing machine 1 by visually observing the light emission state of the upper end surfaces of the light emitting units 53a and 53b. In the present embodiment, the remaining capacity of the battery is notified by the number of light emission of the three light emitting units 53a arranged on the upper side, and the operating state of the electric motor 11 is notified by lighting of the one light emitting unit 53b on the lower side. Here, the “operating state” refers to a switching state from the high rotation mode to the high torque mode.

  The light emitting parts 53a and 53b of the display unit 53 are made of transparent resin and have a prismatic or cylindrical shape, respectively, so that light emitted from the light source of the controller 52 can be efficiently emitted on the display unit 53. Function. In addition, each light emission part 53a may be changed into a cylindrical body shape instead of a prismatic body shape.

  In addition, since the display unit 53 is disposed in a posture inclined toward the user, the user can view the straight line from the front with the line of sight orthogonal to the display unit 53 while maintaining the workability posture. As described above, the display unit 53 is arranged so as to be inclined in the direction of lowering the rear side thereof, thereby improving the visibility of the display unit 53 for a user who takes a work posture such as a middle waist posture.

  As shown in FIG. 3, the motor housing 11a of the electric motor 11 and the accommodating part case 51 of the controller accommodating part 50 are mutually connected via the vent hole 51b.

  According to the portable processing machine 1 of the present embodiment configured as described above, the display unit 53 for visually informing information such as the operation state is a position that is greatly displaced from the lower side of the handle unit 30 to the left side. In addition, the portable processing machine 1 is disposed at a site that does not hinder the visibility of the user located on the rear side. For this reason, the user who grips the grip portion 32 of the handle portion 30 does not take the cramped posture of looking into the display portion 53 from the obliquely upward and backward direction, and remains in an easy posture. The display part 53 can be visually observed, and the visibility of the display part 53 is enhanced in this respect.

  Further, the grip portion 32 of the handle portion 30 extends along a moving direction (front-rear direction) in which cutting processing proceeds. The display unit 53 is disposed on the opposite side (left side) of the cutting tool 12 with respect to the handle unit 30. Thereby, by disposing the display unit 53 at a site away from the cutting tool 12, cutting powder sprayed on the display unit 53 can be suppressed, thereby maintaining good visibility of the display unit 53 for a long time. be able to. Furthermore, the user can visually recognize the display unit 53 while avoiding cutting powder generated during the cutting process, and in this respect, the visibility of the display unit 53 and the workability of the portable processing machine 1 can be improved. .

  Moreover, in the illustrated display unit 53, the light emitted from the light source is efficient by interposing the light guide member (the light emitting units 53a and 53b) between the light emitting unit (the upper end surfaces of the light emitting units 53a and 53b) and the light source. The light is well guided to enhance the light emitting property of the light emitting unit, and thereby the visibility of the display unit 53 in a dark place or the like can be further enhanced.

  Further, the display unit 53 is arranged in a posture inclined toward the user's eye line located obliquely above and behind the motor axis J of the electric motor 11. For this reason, the user who visually recognizes the display unit 53 from the upper rear side of the portable processing machine 1 can view the display unit 53 straight (with the line of sight orthogonal). Visibility can be improved. Further, since the light emitting portions 53a and 53b (light guide members) extend in a direction orthogonal to the surface direction of the base 53c, the upper end portions of the light emitting portions 53a and 53b in the tilted display portion 53 emit light efficiently. Thus, good visibility of the display unit 53 is ensured.

  Further, the controller 52 is arranged in an inclined posture along the display unit 53 between the electric motor 11 and the display unit 53. Thereby, the flat controller 52 can be compactly arrange | positioned in the up-down direction and the front-back direction in the limited space between the electric motor 11 and the display part 53. FIG.

  Furthermore, since the upper portion of the controller 52 is configured to enter the electric motor 11 side rather than the outline of the motor housing 11a, the controller 52 is arranged more compactly between the electric motor 11 and the display unit 53. can do.

  Further, by arranging the controller 52 and the display unit 53 between the electric motor 11 and the battery mounting unit 40, it is possible to improve the visibility of the display unit 53 while shortening the route of the power line and the signal line. it can.

  Various modifications can be made to the embodiment described above. For example, the configuration in which the display unit 53 is disposed in a posture inclined obliquely upward and rearward at a position shifted from the lower side to the left side of the handle unit 30 is illustrated, but may be configured to be disposed substantially horizontally. The display unit 53 is arranged so as to be shifted from the lower side of the handle unit 30 to the left or right side so that the visibility of the display unit 53 is ensured by avoiding being behind the handle unit as viewed from the user located behind. be able to.

  Moreover, although the structure which the display part 53 integrated along the upper surface of the controller 52 was illustrated, it is good also as a structure which is separated and arrange | positioned in the site | part which mutually separated. Therefore, as illustrated, the diagonal arrangement of the controller 52 may be selected in accordance with the allowable space. If there is sufficient space between the electric motor 11 and the battery mounting portion 40, for example, the controller 52 is horizontally arranged. On the contrary, when the space is narrower, the controller 52 may be arranged in an upright posture extending upward. It is not always necessary to match the extending direction of the controller 52 with the display unit 53.

  Although the configuration in which the light source (LED) is mounted on the control board 52a side of the controller 52 is illustrated, a configuration in which a dedicated LED board is arranged on the display unit side may be employed. In this case, the light guide member can be omitted.

  The configuration in which the display unit 53 is arranged on the upper surface of the housing unit case 51 provided behind the electric motor 11 is illustrated. However, when the display unit 53 is separated from the controller 52, the display unit is arranged directly on the rear surface of the motor housing 11a. It is good also as composition to do.

  Further, the display unit may be arranged so as to protrude from the back side of the upright part 31 of the handle part 30, for example. In this case, the display unit does not have to be behind the motor shaft 11d, and can be configured to be disposed on the front side of the motor shaft 11d above or in plan view of the motor shaft 11d. Even with the display unit arranged in such a part, the visibility of the handle unit 30 can be ensured without being behind the handle unit 30 when viewed from the user located behind. Moreover, the visibility can be further improved by inclining and arrange | positioning the display part arrange | positioned in the site | part which slanted back.

  In the embodiment exemplified above, a portable maroon saw (cutting machine) is illustrated as the portable processing machine 1, but in the present invention, a jigsaw that performs a cutting process by reciprocating a band saw blade and a cylindrical cannula blade are rotated. The present invention can be widely applied to other portable processing machines such as a portable plane that performs surface processing of wood or the like.

1 ... Portable processing machine (portable marnoco)
2 ... Base, 2a ... Guide part W ... Cutting material C ... Cutting part 10 ... Tool body part 11 ... Electric motor (brushless motor)
11a ... Motor housing, 11b ... Stator, 11c ... Rotor, 11d ... Motor shaft 11e, 11f ... Bearing, 11g ... Cooling fan, 11h ... Baffle plate 11i ... Intake hole, 11j ... Output gear part, 11k ... Two-sided width 11m ... sensor substrate 12 ... cutting tool 13 ... fixed cover, 13a ... arrow (rotating direction of the cutting tool 12)
14 ... movable cover, 14a ... opening / closing lever 15 ... tilt support part (front side)
16 ... Tilt support part (rear side)
DESCRIPTION OF SYMBOLS 17 ... Vertical rocking | fluctuation support shaft 18 ... Fixed lever 19 ... Gear head part 19a ... Gear case, 19b ... 1st driven gear, 19c ... Intermediate shaft, 19d ... 2nd driven gear 19e, 19f ... Bearing, 19g ... 3rd driven gear 20 ... Spindle, 20a, 20b ... Bearing 21 ... Fixing screw 23 ... Outer flange 24 ... Inner flange 25 ... Duct, 25a ... Outlet 26 ... Illuminator 27 ... Lock lever 30 ... Handle part 31 ... Standing part, 31a ... Holding hole 32 ... Grasping part, 32a ... Elastomer resin layer 33 ... Connection part 34 ... Switch lever 35 ... Lock-on button 36 ... Hex wrench 37 ... Switch body 40 ... Battery mounting part 41 ... Battery pack 50 ... Controller housing part 51 ... Housing part case 51a ... Holding hole, 51b ... Vent 52 ... Controller 52a ... Control board, 52b ... Case, 5 c, 52 d ... Wakuana, 52e ... frame portion 53 ... display unit 53a, 53b ... light-emitting portion, 53c ... base

Claims (9)

An electric motor, a controller that controls the operation of the electric motor, and a portable processing machine that includes a gripping unit that is gripped when a user performs a movement operation, and a display unit that visually notifies various types of information The display unit extends rearward of the motor shaft of the electric motor, and is disposed at a position that is not hidden by the grip portion when the motor shaft is viewed from above and at a right angle from the rear. Processing machine. The portable processing machine according to claim 1, wherein the grip portion extends along a front-rear direction, and the display portion is disposed on the opposite side of the processing blade with respect to the grip portion. Portable processing machine. 3. The portable processing machine according to claim 1, wherein the display unit includes a light emitting unit that notifies various information by light emission, and a light guide member is interposed between the light emitting unit and the light source. Portable processing machine. The portable processing machine according to claim 3, wherein the display unit has a flat plate shape and is disposed in a posture inclined obliquely rearward and upward, and the light guide member is disposed on the display unit. A portable processing machine that extends along an orthogonal direction. 5. The portable processing machine according to claim 4, wherein the controller is disposed in an inclined posture along the display unit between the electric motor and the display unit. The portable processing machine according to claim 5, wherein an upper portion of the controller is moved closer to the electric motor side than an outline of a motor housing. The portable processing machine according to any one of claims 1 to 6, further comprising a battery mounting portion for mounting a battery as a power source, and the controller between the electric motor and the battery mounting portion. A portable processing machine that is arranged. The portable processing machine according to claim 1, wherein the electric motor is a brushless motor, and the controller includes a control circuit for brushless motor control. The portable processing machine according to claim 1, wherein the display unit is provided integrally with the controller.

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