WO2023210782A1 - Machine de travail - Google Patents

Machine de travail Download PDF

Info

Publication number
WO2023210782A1
WO2023210782A1 PCT/JP2023/016760 JP2023016760W WO2023210782A1 WO 2023210782 A1 WO2023210782 A1 WO 2023210782A1 JP 2023016760 W JP2023016760 W JP 2023016760W WO 2023210782 A1 WO2023210782 A1 WO 2023210782A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
grip
working
gripping
section
Prior art date
Application number
PCT/JP2023/016760
Other languages
English (en)
Japanese (ja)
Inventor
卓哉 天津
綾香 小泉
朴人 伊勢
悟知 岩田
Original Assignee
工機ホールディングス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 工機ホールディングス株式会社 filed Critical 工機ホールディングス株式会社
Publication of WO2023210782A1 publication Critical patent/WO2023210782A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/10—Hand planes equipped with power-driven cutter blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines

Definitions

  • the present invention relates to a working machine.
  • Patent Document 1 discloses an electric planer to which a power supply section is detachably attached.
  • a working machine is a working machine having a planar working part.
  • the work machine includes a casing, a drive part housed inside the casing, and including a motor, a drive shaft driven by the motor, and a processing section provided on the drive shaft, and a drive part housed in the casing.
  • a power supply section that is detachably attached and supplies power to the drive section; a first grip section provided on one side of the casing in a predetermined direction; and a first grip section provided on the other side of the casing in the predetermined direction. 2 gripping parts.
  • the power supply section is mounted between the first gripping section and the second gripping section in the predetermined direction.
  • a working machine is a working machine having a planar working part.
  • the work machine includes a casing, a drive part housed inside the casing, and including a motor, a drive shaft driven by the motor, and a processing section provided on the drive shaft, and a drive part housed in the casing.
  • a power supply section that is detachably attached and supplies power to the drive section; a first grip section provided on one side of the casing in a predetermined direction; and a first grip section provided on the other side of the casing in the predetermined direction. 2 gripping parts.
  • a center of gravity when the power supply section is attached is located between the first gripping section and the second gripping section in the predetermined direction.
  • a working machine is a working machine having a planar working part.
  • the work machine includes a casing, a drive section housed inside the casing, and including a motor, a drive shaft driven by the motor, and a processing section provided on the drive shaft; a first grip part provided on one side of the housing; a second grip part provided on the other side of the housing in the predetermined direction; and a second grip part provided in the predetermined direction and along the plane direction of the working part and a wall protruding from the second grip.
  • a working machine includes a motor, a processing section that rotates by the driving force of the motor, a working section that supports the processing section, and a front base that can move up and down with respect to the working section. and a lifting mechanism operated by an operator to move the front base up and down.
  • the elevating mechanism has an adjustment mechanism that can adjust the operating load when moving the front base up and down.
  • a working machine is a working machine capable of performing processing work toward the front, and includes a motor, a housing that accommodates the motor, and a housing that is provided with a motor and a housing that accommodates the motor.
  • a grip part in which an operable switch is disposed, a controller that controls the motor based on the operation of the switch, a processing part that rotates by the driving force of the motor, and a working part that supports the processing part;
  • the apparatus includes a front base that can be moved up and down with respect to the working part, and a lifting mechanism that is operated by a worker and moves the front base up and down.
  • the controller is arranged in front of the switch and above the motor.
  • the operability of a working machine can be improved.
  • FIG. 1 is an external side view of an electric planer according to an embodiment.
  • FIG. 2 is a sectional view of the electric planer.
  • FIG. 3 is a cross-sectional view of the electric planer.
  • FIG. 4 is an internal perspective view of the electric planer.
  • FIG. 5 is a partial sectional view showing the vicinity of the elevating mechanism of the electric planer.
  • (B) shows a state in which the spacer member 16A has been moved downward from the state in (A).
  • FIG. 6 is a partial sectional view showing the vicinity of the elevating mechanism of the electric planer.
  • (B) shows a state in which the grip portion 9A has been moved upward from the state in (A).
  • FIG. 7 is a perspective view of the electric planer with the left side of the second grip section removed.
  • FIG. 1 is an external side view of an electric planer according to an embodiment.
  • FIG. 2 is a sectional view of the electric planer.
  • FIG. 3 is a cross-sectional view of
  • FIG. 8 is a rear external view of the electric planer.
  • FIG. 9 is a diagram schematically showing the position of the center of gravity of the electric planer.
  • (A) is an electric planer of an embodiment, and (B) is an electric planer of a comparative example.
  • FIG. 10 is an external side view of the electric planer of the first modification.
  • FIG. 11 is a sectional view of the electric planer of the first modification.
  • FIG. 12 is a rear external view of the electric planer of the first modification.
  • FIG. 13 is a partial sectional view showing the vicinity of the elevating mechanism of the electric planer according to the first modification.
  • FIG. 14 is a side view of the electric planer.
  • FIG. 15 is an external side view of the electric planer of the second modification.
  • FIG. 16 is an external view of the right side of the electric planer of the third modification.
  • FIG. 17 is a sectional view of an electric planer according to a third modification.
  • FIG. 18 is a sectional view of the electric planer taken along line BB shown in FIG. 16.
  • FIG. 19 is an external side view of a belt sander according to a fourth modification.
  • (A) is a side view seen from the left side
  • (B) is a side view seen from the right side.
  • FIG. 1 is an external side view of the electric planer 1
  • FIG. 2 is a sectional view of the electric planer 1 shown in FIG. 3 is a sectional view of the electric planer 1 taken along line AA in FIG. 1
  • FIG. 4 is an internal perspective view of the electric planer 1.
  • the electric planer 1 includes a housing (casing) 2, a rear base 3, a power supply section 4, a control unit 5 (controller), an electric motor 6, a fan 7, and a cutter block 8 to which a cutter 8A is attached. It has a first grip part 9 (sub handle), a second grip part 10 (main handle), and a lifting mechanism 15.
  • an electric motor 6 is driven by electric power supplied from a power source 4, and a cutter block 8 is rotated by the driving force of the electric motor 6, so that a workpiece can be cut.
  • the direction in which the first grip part 9 is provided with respect to the power supply part 4 is referred to as the front direction
  • the direction in which the first grip part 9 is provided with respect to the power supply part 4 is referred to as the forward direction (the direction in which the second grip part 9 is provided with respect to the power supply part 4). 10) is defined as the rear direction.
  • the direction in which the rear base 3 is provided with respect to the housing 2 is defined as a downward direction
  • the opposite direction (the direction in which the power supply unit 4 is provided with respect to the housing 2) is defined as an upward direction.
  • the right direction is defined as the right direction
  • the opposite direction is defined as the left direction.
  • the front-back direction corresponds to the predetermined direction in the present invention.
  • the housing 2 forms the outer shell of the electric planer 1, and the rear base 3 is attached to the lower end surface (lower end surface) of the housing 2.
  • the housing 2 includes a main body housing 21, a gear housing 22, a front housing 23, and a rear housing 24. As shown in FIG. 2, inside the housing 2, a motor accommodating part 2A and a wiring accommodating part 2C are formed.
  • the main body housing 21 is a part forming the main body of the electric planer 1.
  • the main body housing 21 is provided with an electric motor 6 , a fan 7 , a cutter block 8 , and a chip discharge section 11 .
  • a motor accommodating portion 2A in which the electric motor 6 is housed is formed approximately at the center in the front-rear direction inside the main body housing 21, and an inlet (not shown) is formed on the right side surface of the main body housing 21.
  • the suction port is a plurality of holes that communicate the outside of the housing 2 and the motor accommodating portion 2A.
  • a wiring accommodating portion 2C is formed as a space (wiring space) in which a wiring 50A, which will be described later, is accommodated. has been done.
  • the wiring accommodating portion 2C extends rearward above the motor accommodating portion 2A, that is, above the electric motor 6.
  • the wiring accommodating portion 2C extends rearward from the lower part of the front connecting portion 10B of the second gripping portion 10, which will be described later and is connected to the main body housing 21.
  • the wiring housing portion 2C is a space partially curved along the outer periphery of the electric motor 6.
  • the gear housing 22 is provided on the left side of the main body housing 21. Further, the gear housing 22 closes the left side of the main body housing 21 and prevents fan air flowing into the chip discharge hole 11A, which will be described later, from diffusing to the outside of the housing 2.
  • the gear housing 22 is formed with an intake port 24B.
  • the front housing 23 is provided integrally with the main body housing 21 in front of the main body housing 21.
  • the front housing 23 supports a front base 33 that moves up and down when adjusting the depth of cut during cutting.
  • the rear housing 24 is provided integrally with the main body housing 21 at the rear of the main body housing 21. Wiring 50B, which will be described later, is accommodated within the rear housing 24.
  • the rear base 3 is a planar working part that is brought into contact with the upper surface of the workpiece when cutting is performed using the electric planer 1.
  • the rear base 3 is formed into a substantially rectangular shape in a plane parallel to the front-rear direction and the left-right direction.
  • the electric motor 6 is accommodated in the above-mentioned motor accommodating portion 2A, and has a rotating shaft 6A as shown in FIG. 3.
  • the rotating shaft 6A is a shaft extending in the left-right direction across the main body housing 21 and the gear housing 22.
  • the rotating shaft 6A is rotatably supported by a ball bearing 21A provided on the right side of the main body housing 21 and a ball bearing 22A provided on the left side.
  • a pulley 6B is provided at the left end of the rotating shaft 6A, and is housed in the gear housing 22.
  • the electric motor 6 is, for example, a brushed motor, and is configured to be controllable by a control unit 5, which will be described later.
  • the electric motor 6 is electrically connected to the power supply unit 4 through wiring 50B, and is driven by receiving power from the power supply unit 4.
  • the rotating shaft 6A and the pulley 6B are rotationally driven.
  • the rotation shaft 6A is a drive shaft driven by the electric motor 6.
  • the electric motor 6 is electrically connected to a control unit 5, which will be described later, through a wiring 50A, and its rotational drive is controlled by the control unit 5.
  • the fan 7 is arranged near the boundary between the main body housing 21 and the gear housing 22 described above, and is provided coaxially with the rotating shaft 6A of the electric motor 6.
  • the fan 7 is rotationally driven by co-rotating with the rotating shaft 6A in accordance with the drive of the electric motor 6, and generates fan air within the housing 2.
  • the cutter block 8 is a substantially cylindrical member extending in the left-right direction, and is provided in front and below the electric motor 6 so as to be rotatable with respect to the main body housing 21 and the gear housing 22.
  • the axial center of the cutter block 8 has a positional relationship that is substantially parallel to the axial center of the rotating shaft 6A of the electric motor 6.
  • the cutter block 8 includes a cutter block shaft 8B, and a plate-shaped cutter 8A extending in the left-right direction is attached to the outer peripheral portion.
  • the cutter block shaft 8B is a shaft that straddles the main body housing 21 and the gear housing 22 and extends in the left-right direction.
  • the cutter block shaft 8B is rotatably supported by a ball bearing 21B provided on the right side of the main body housing 21 and a ball bearing 22B provided on the left side.
  • a pulley 8C is provided on the left end side of the cutter block shaft 8B, and is housed in the gear housing 22.
  • the pulley 8C and the pulley 6B of the rotating shaft 6A are connected by a belt 6C housed in the gear housing 22. Therefore, the rotational force of the rotating shaft 6A is transmitted to the cutter block shaft 8B via the pulley 6B, belt 6C, and pulley 8C.
  • the cutter 8A is detachably attached to two locations symmetrical about the axis of the cutter block 8 (see FIG. 4).
  • the cutter block 8 is a processing section that is provided on the rotating shaft 6A, which is a drive shaft, and processes a workpiece.
  • the above-mentioned electric motor 6, rotating shaft 6A, and cutter block 8 constitute a drive section 13.
  • the chip discharge part 11 is provided in front of the electric motor 6, and has a chip discharge hole 11A, a communication hole 11B, and an intake hole 11C formed therein. ing.
  • the chip discharge hole 11A is a hole that passes through the main body housing 21 in the left-right direction, and extends substantially parallel to the axial direction (left-right direction) of the rotating shaft 6A of the electric motor 6.
  • the chip discharge hole 11A is formed above the cutter block 8 and in front of the electric motor 6.
  • the right open end of the chip discharge hole 11A corresponds to an exhaust port.
  • the communication hole 11B is closed from above by a fan guard 7A (see FIG. 4). Therefore, the fan wind generated by the fan 7 is suppressed from flowing toward the motor housing section 2A, and flows from the motor housing section 2A to the chip discharge hole 11A via the communication hole 11B.
  • the intake hole 11C is formed in a portion of the main body housing 21 facing the upper front side of the cutter block 8. Chips generated by cutting the cutter block 8 are taken into the chip discharge hole 11A through the intake hole 11C, and are discharged to the outside of the housing 2 from the right open end of the chip discharge hole 11A.
  • the power supply section 4 is a battery pack that is detachably mounted on a mounting section 12 provided on the second grip section 10, which will be described later.
  • the power supply unit 4 has a rectangular parallelepiped shape, and houses a battery group (cell unit) made up of a plurality of lithium battery cells and the like. When the power supply section 4 is attached to the electric planer 1, it is electrically connected to a connection terminal 12A provided on the attachment section 12, which will be described later.
  • the power supply section 4 supplies power to the drive section 13 having the electric motor 6 under the control of the control unit 5 .
  • Control Unit 5 (Controller)>
  • the control unit 5 is provided above the electric motor 6, and is housed in a control portion accommodating portion 2B provided near the lower end of a front connection portion 10B, which will be described later.
  • the control unit 5 is arranged at a position further away from the rear base 3 (above) than the electric motor 6 in the vertical direction perpendicular to the rear base 3.
  • the control unit 5 controls the power supply by the power supply section 4 to the drive section 13 having the electric motor 6 and the driving of the electric motor 6 in accordance with the operation of the trigger switch 10E.
  • the control unit 5 corresponds to the controller of the present invention.
  • FIGS. 5(A) and 5(B) are partial sectional views showing the vicinity of the elevating mechanism 15 of the electric planer 1.
  • the elevating mechanism 15 is operated by a user (operator) to move the front base 33 up and down (elevating and lowering).
  • the elevating mechanism 15 includes a front base 33, a first grip part 9, and a rotating shaft 9D. Further, the elevating mechanism 15 has an adjustment mechanism 16 (described later) that can adjust the operating load when moving the front base 33 up and down. By moving the front base 33 up and down, the depth of cut into the work material during cutting can be adjusted. That is, the elevating mechanism 15 functions as a cutting depth adjusting mechanism.
  • the front base 33 supported by the front housing 23 is a part of the elevating mechanism 15, and has a base portion 33A and a female thread 33B.
  • the lower part of the base 33A is formed into a substantially rectangular shape on a plane parallel to the front-rear direction and the left-right direction. During work, the lower surface (bottom surface) of the base 33A slides on the workpiece.
  • a lower portion of the base portion 33A is arranged near the lower end surface of the front housing 23.
  • a female screw 33B extending in the vertical direction is attached to the base 33A by a fixing means such as press fitting.
  • the base portion 33A and the female thread 33B are separate members, they may be formed from one member.
  • the first grip part 9 includes a grip part 9A and a nut 9F fixed inside the grip part 9A.
  • the grip portion 9A is provided at the upper part of the front housing 23.
  • the lower end of the grip portion 9A is located above the upper end portion 25 of the housing 2. That is, the grip portion 9A is provided at a position farther from the rear base 3 (ie, above) than the upper end portion 25, which is the apex position of the housing 2, in the vertical direction.
  • the grip portion 9A is gripped by one hand or finger when the user (operator) uses the electric planer 1.
  • the grip portion 9A is connected to the rotating shaft 9D via a nut 9F that is threaded onto the rotating shaft 9D (near the upper end).
  • the first grip part 9 is threadedly engaged with the rotating shaft 9D. Therefore, the first grip part 9 can move (screw) relative to the rotation axis 9D in the vertical direction.
  • the grip portion 9A also functions as a portion that is rotated when adjusting the operating load of the elevating mechanism 15.
  • the nut 9F is a metal nut (nylon nut) that includes a nylon ring in the upper part, and the effect of the nylon ring prevents the grip portion 9A from easily rotating relative to the rotating shaft 9D. are doing.
  • the nut 9F is fixed inside the resin grip portion 9A by a fixing means such as integral molding.
  • the rotation shaft 9D is provided inside the grip portion 9A and the front housing 23 along the vertical direction. That is, a portion of the rotating shaft 9D is located inside the grip portion 9A.
  • the upper part of the rotating shaft 9D has a male thread, and is screwed into the nut 9F.
  • a male thread 9E is formed at the lower part of the rotating shaft 9D, and is screwed into the female thread 33B located inside the front housing 23 described above.
  • the rotation shaft 9D is configured to be rotated by operating at least one of the grip portion 9A and the operating portion 9C.
  • the adjustment mechanism 16 adjusts the operating load when moving the front base 33 up and down (the load of the elevating operation by the elevating mechanism 15).
  • the adjustment mechanism 16 is a mechanism that can adjust the frictional force generated on the rotating shaft 9D. That is, the adjustment mechanism 16 is a mechanism that can adjust the magnitude of the load applied during the operation of rotating the grip portion 9A or the operating portion 9C.
  • the rotating shaft 9D slides on the front housing 23, and the frictional force is generated by the sliding between the rotating shaft 9D and the front housing 23, but the adjustment mechanism 16 can change the magnitude of this frictional force. Friction occurs at a friction force generating location P1, which is a sliding portion between the rotating shaft 9D and the front housing 23 shown in FIG.
  • the adjustment mechanism 16 includes a spacer member 16A, an operating section 9C, and an elastic body 16B.
  • Spacer member 16A The spacer member 16A is arranged between the upper surface of the front housing 23 and the lower end surface of the grip portion 9A.
  • the spacer member 16A is formed in an annular shape, and a rotating shaft 9D is disposed in the hole 16C.
  • the spacer member 16A contacts the lower end surface of the grip portion 9A at its upper end, and contacts the elastic body 16B at its lower end.
  • the spacer member 16A is fixed to the rotating shaft 9D by a screw member 16D (see FIG. 3).
  • the screw member 16D When the screw member 16D is loosened, the hole 16C becomes larger and the fixing force of the spacer member 16A to the rotating shaft 9D is weakened, so that the spacer member 16A can move up and down with respect to the rotating shaft 9D. Furthermore, when the screw member 16D is tightened, the hole 16C becomes smaller and the rotating shaft 9D is clamped by the spacer member 16A. Thereby, the spacer member 16A is fixed in position with respect to the rotating shaft 9D. When the screw member 16D is loosened, the movement of the spacer member 16A is restricted by the grip portion 9A.
  • the position (movable range) of the spacer member 16A relative to the rotating shaft 9D can be changed. Note that since the spacer member 16A is always urged upward by an elastic body 16B, which will be described later, when the screw member 16D is loosened, it moves up and down following the up and down movement of the grip portion 9A.
  • the movement range (the range in which it can be screwed) of the grip portion 9A is limited by hitting the spacer member 16A.
  • the grip portion 9A is moved downward with the spacer member 16A fixed, the lower surface of the grip portion 9A and the upper surface of the spacer member 16A are brought into strong contact due to the screw action, and the grip portion 9A and the spacer member 16A are brought into contact with each other. It will rotate as a unit.
  • this state is referred to as the integrated state of the grip portion 9A and the spacer member 16A.
  • the rotating shaft 9D can be rotated by rotating the grip portion 9A. Therefore, when the user rotates the grip portion 9A, the rotation shaft 9D rotates with respect to the front housing 23. If it is desired to firmly integrate the grip portion 9A and the spacer member 16A, the grip portion 9A may be screwed downward while, for example, the spacer member 16A is prevented from rotating. Moreover, if it is desired to release the integrated state, the grip portion 9A may be screwed upward while preventing the spacer member 16A from rotating. In addition, in the normal state (during operation), the grip part 9A and the spacer member 16A are in an integrated state, so that the rotating shaft 9D can be rotated by operating either the grip part 9A or the operating part 9C. It has become.
  • the operation unit 9C is fixed to the spacer member 16A.
  • the operating portion 9C extends downward from the position fixed to the spacer member 16A. More specifically, the operating portion 9C is curved so as to hang forward. The lower end of the operating portion 9C has a portion that protrudes forward, and the fingers can be caught on this portion to improve operability.
  • the operating unit 9C can be held, for example, in one hand so as to be wrapped around it (with the palm facing backward).
  • the spacer member 16A to the rotating shaft 9D
  • the operating section 9C can rotate integrally with the rotating shaft 9D. Therefore, when the user rotates the operating section 9C, the rotation shaft 9D rotates with respect to the front housing 23.
  • the elastic body 16B is, for example, a flat spring (spring member).
  • the elastic body 16B is supported by the spacer member 16A on the upper side and supported by the front housing 23 on the lower side.
  • the screw member 16D is tightened to fix the position of the spacer member 16A on the rotating shaft 9D, the spacer member 16A and the rotating shaft 9D are integrated.
  • the rotating shaft 9D is also always urged upward by the elastic body 16B, so when the grip portion 9A is turned, a frictional force is generated between the rotating shaft 9D and the front housing 23 at the frictional force generation point P1. occurs.
  • the amount of compression of the elastic body 16B can be changed by moving the elastic body 16B. That is, the amount of compression of the elastic body 16B can be changed by operating the grip portion 9A.
  • the operating load applied by the grip portion 9A when the front base 33 is moved up and down by rotating the grip portion 9A to rotate the rotating shaft 9D can be adjusted in accordance with the amount of compression of the elastic body 16B. becomes possible.
  • the operating load of the grip portion 9A when moving the front base 33 up and down by turning the grip portion 9A can be adjusted to be heavier or lighter.
  • the cutting depth is adjusted by the user rotating the grip portion 9A or the operating portion 9C.
  • the rotation shaft 9D rotates. Due to this rotation of the rotating shaft 9D, the female screw 33B screwed into the male screw 9E moves in the vertical direction relative to the male screw 9E.
  • the front base 33 to which the female screw 33B is attached moves in the vertical direction with respect to the front housing 23.
  • the vertical position (height) of the front base 33 relative to the rear base 3 changes, so the amount of the blade 8A protruding downward from the lower surface of the base 33A changes, and the depth of cut during cutting is adjusted. be done.
  • FIGS. 6(A) and 6(B) are diagrams for explaining the adjustment procedure for changing the operating load of the lifting mechanism 15 from a small state to a large state
  • FIGS. 6(A) and 6(B) are FIG. 6 is a diagram for explaining a procedure for lightening the load operation (adjustment for changing from a large state to a small state).
  • FIG. 5A shows a state in which the spacer member 16 (grip portion 9A) is in the upper position, and the amount of compression of the elastic body 16B is small (the frictional force at the frictional force generation point P1 is small).
  • FIG. 5(B) shows a state in which the spacer member 16 (grip portion 9A) is in the lower position, and the amount of compression of the elastic body 16B is large (the friction at the frictional force generation point P1 is large).
  • the operating load of the grip part 9A when rotating the grip part 9A to move the front base 33 up and down is small (light), that is, the grip part 9A can be rotated with a small load.
  • the operating load of the grip portion 9A when rotating the portion 9A to move the front base 33 up and down is large (heavy), that is, a state can be created in which a large load is required to rotate the grip portion 9A.
  • the front housing 23 includes a washer (intervening member) 17 interposed in a portion where the rotating shaft 9D and the front housing 23 slide. That is, a metal plate-shaped washer 17 is interposed at a portion where the rotating shaft 9D and the front housing 23 slide. Furthermore, a metal plate-shaped washer (intervening member) 18 is also interposed at a portion where the elastic body 16B and the front housing 23 come into contact.
  • a washer intervening member 17
  • the rotational movement of the rotating shaft 9D relative to the front housing 23 can be made smooth.
  • damage to the front housing 23 due to the urging force of the elastic body 16B can be suppressed.
  • FIG. 6 shows a state in which the spacer member 16A is fixed to the rotating shaft 9D (screw member 16D is tightened)
  • FIG. 6(A) is a partial cross-sectional view showing a state in which the grip portion 9A is in the lower position
  • 6(B) is a partial sectional view showing a state in which the grip portion 9A is located in the upper position.
  • the integrated state of the grip portion 9A and the spacer member 16A is released from the state shown in FIG. 6(A). Thereafter, by moving (screwing) the grip portion 9A upward, the state shown in FIG. 6(B) can be achieved.
  • the spacer member 16A can be moved upward more than in the state of FIG. 6(A). This allows the grip portion 9A to move upward relative to the spacer member 16A.
  • the screw member 16D fixing the spacer member 16A is loosened.
  • the spacer member 16A is moved upward by the urging force of the elastic body 16B, and can be brought into the state shown in FIG. 5A (a state where the operating load is small), for example.
  • the grip portion 9A may be rotated after loosening the screw member 16D to reduce the operating load.
  • the second grip part 10 is provided on the rear side of the housing 2, that is, above the main housing 21 and the rear housing 24.
  • the first grip part 9 and the second grip part 10 are arranged in the housing 2 along the front-rear direction.
  • the second gripping part 10 is provided on one side (front side) of the housing 2 where the first gripping part 9 is provided, and on the other side (rear side). Therefore, the second gripping portion 10 and the first gripping portion 9, which has the gripping portion 9A provided above the upper end portion 25 of the housing 2 and extends in the vertical direction as described above, It can be said that they overlap in the direction (orthogonal to the rear base 3).
  • the grip portion 9A of the first grip portion 9 is provided above the upper end portion 25 of the main body housing 21 of the housing 2, the first grip portion 9 and the second grip portion 10 This can be said to be provided on a plane parallel to the rear base 3. That is, the second grip part 10 and the first grip part 9 are at least partially in the same position in the vertical direction.
  • the second gripping part 10 is formed so that it can be divided into left and right parts at a center line along the front-rear direction of the electric planer 1.
  • FIG. 7 is a perspective view of the electric planer 1 with the left side of the second gripping part 10 removed. Note that FIG. 7 shows the electric planer 1 with the power supply section 4 removed.
  • the second gripping section 10 includes a gripping section main body 10A, a front connecting section 10B, and a rear connecting section 10C.
  • the front connecting portion 10B and the rear connecting portion 10C are portions that connect the gripping portion main body 10A and the housing 2, they will also be described as part of the second gripping portion 10 in this application.
  • the front connecting portion 10B is connected to the housing 2 at the upper part of the main body housing 21 and behind the chip discharge hole 11A. Specifically, the front connecting portion 10B is connected to the main body housing 21 above the electric motor 6.
  • the above-mentioned control part housing part 2B is provided in the front part connection part 10B near the position where the front part connection part 10B connects with the main body housing 21.
  • An opening 211 is formed in a part of the upper part of the main body housing 21 .
  • a wiring 50A that electrically connects the control unit 5 housed in the control unit housing section 2B and the electric motor 6 is inserted through the opening 211.
  • the opening 211 is shielded from the outside by the left member.
  • the front connecting portion 10B has an inclination with respect to the vertical direction and extends toward the upper rear. From another perspective, the farther the front connecting portion 10B is from the rear base 3, the more the front connecting portion 10B tilts rearward with respect to the direction perpendicular to the rear base 3 (vertical direction).
  • the front connecting portion 10B is inclined at an angle of about 65° with respect to the vertical direction. Incidentally, the inclination is not limited to 65°, and may range from 60° to 70°, for example.
  • the front connecting part 10B (mainly the front part thereof) is provided with a mounting part 12 for mounting a power supply part 4, which will be described later. Further, the wiring 50A extending downward from the lower part of the front connecting portion 10B is inserted into the wiring accommodating portion 2C of the housing 2 described above through the opening 211 described above.
  • the grip main body 10A is connected to the rear part of the front connecting part 10B, and extends toward the rear and lower part above the main body housing 21 and the rear housing 24.
  • the grip main body 10A has a substantially cylindrical shape, and is gripped by the user with one of his two hands when using the electric planer 1.
  • a switch mechanism 10D and a trigger switch 10E are provided inside the grip main body 10A.
  • FIG. 1 shows an axis A extending in the extending direction of the grip main body 10A, a part of a virtual plane p that is on the same plane as the lower surface of the rear base 3, and an angle r formed between the axis A and the plane p. shows.
  • the axis A extends in the extending direction of the grip main body 10A, and serves as a grip axis of the grip main body 10A.
  • Axis A is a straight line passing through the center of one end and the center of the other end of the grip main body 10A. Since the grip main body 10A has a rearwardly curved shape from the viewpoint of operability, the straight axis A does not necessarily pass through the center of the grip main body 10A.
  • Axis A is perpendicular to the left-right direction.
  • the angle r is approximately 65°. Therefore, the grip main body 10A stands up upward so as to be tilted forward. In order to achieve the effects described later, the angle r is preferably in the range of 50° to 90°. Furthermore, the angle r is preferably in the range of 60° to 80°. That is, the grip main body 10A (axis A) may be configured to extend at an angle parallel to the vertical direction or at an acute angle (obtuse angle with respect to the rear base 3) with respect to the vertical direction.
  • the switch mechanism 10D is housed inside the grip main body 10A and is electrically connected to the control unit 5.
  • the trigger switch 10E is provided on the lower front side of the grip main body 10A. For this reason, the control unit 5 is arranged ahead of the trigger switch 10E.
  • the trigger switch 10E is arranged in the wiring accommodating portion in the vertical direction (that is, the direction perpendicular to the rear base 3). Overlaps with 2C.
  • a signal (operation signal) indicating that the trigger switch 10E has been operated is output from the switch mechanism 10D to the control unit 5.
  • the control unit 5 causes the power supply section 4 to supply power to the electric motor 6. That is, the trigger switch 10E is a switch operated by the user when switching between starting and stopping the electric motor 6.
  • the rear connecting portion 10C has a substantially cylindrical shape similar to the grip main body 10A, and is connected to the rear portion of the grip main body 10A and the upper rear end of the rear housing 24.
  • the rear connection part 10C is a connection formed at the end of the second grip part 10 in the second direction opposite to the direction (first direction) from the power supply part 4 to the first grip part 9.
  • the second grip part 10 is connected to the housing 2 at this connection part.
  • An opening 212 is formed in the upper surface of the rear housing 24 in an area surrounded by the rear connecting portion 10C.
  • the above-mentioned wiring 50B is inserted into this opening 212. That is, the wiring 50B connecting the power supply section 4 and the electric motor 6 passes through the inside of the second grip section 10 and is inserted into the rear housing 24 through the opening 212.
  • the rear base 3 is attached below the housing 2. Therefore, as shown in FIGS. 1 and 3, at least a portion of the rear connecting portion 10C is located forward of the rear (second direction) side end 3A of the rear base 3, that is, on the first grip portion 9 side. To position. Since the second gripping portion 10 has the above-described shape, the second gripping portion 10 extends forward and upward along the direction intersecting the surface of the rear base 3 from the rear connecting portion 10C, which is the connecting portion on the second direction side. It can be said that it extends towards the first gripping part 9 located therein.
  • the attachment section 12 is provided at the front connection section 10B.
  • the mounting portion 12 is provided on the front side of the front connecting portion 10B of the second gripping portion 10, that is, on the side of the second gripping portion 10 that faces the first gripping portion 9.
  • the power supply section 4 is removably mounted on the mounting section 12 .
  • the mounting section 12 has a connection terminal 12A that is electrically connected to the mounted power supply section 4, and a wall section 12B that is connected to the front connection section 10B of the second grip section 10.
  • the connection terminal 12A is electrically connected to the control unit 5.
  • FIG. 8 is an external view of the electric planer 1 when viewed from the rear. Note that FIG. 8 shows a case where the power planer 4 is not attached to the electric planer 1.
  • the wall portion 12B has a shape that projects in the left-right direction with respect to the front connecting portion 10B. Further, as shown in FIG. 1, the wall portion 12B is formed along the vertical direction. That is, the wall portion 12B protrudes from the second grip portion 10 along the left-right direction that intersects the front-rear direction in which the first grip portion 9 and the second grip portion 10 are arranged.
  • the user can press the right side and the left side of the wall part 12B with, for example, the thumb and index finger of the hand holding the second grip part 10, and operate the trigger switch 10E with the middle finger.
  • the user can control the direction of movement of the electric planer 1 (by resisting reaction force or finely adjusting the direction) by adjusting the force applied with the finger pressing the wall portion 12B. .
  • the power supply section 4 is mounted downward toward the housing 2 from above away from the rear base 3 along the direction intersecting the rear base 3 (the direction in which the front connection section 10B is inclined). Specifically, the direction in which the power supply unit 4 is attached is from the rear upper part to the front lower part along the slope of the front connecting part 10B of the second grip part 10.
  • the power supply section 4 is slid along this mounting direction and is mounted on the mounting section 12. In this case, the longitudinal direction of the power supply section 4 is slid along the above-mentioned mounting direction.
  • the power supply section 4 mounted on the mounting section 12 has its longitudinal direction inclined with respect to the vertical direction along the slope of the mounting section 12, so when the power supply section 4 is mounted with the longitudinal direction parallel to the vertical direction. This contributes to miniaturization of the electric planer 1 in the vertical direction compared to the above.
  • the mounting portion 12 is provided on the front side of the front connecting portion 10B, the first gripping portion 9 and the mounting portion 12 are provided on a plane parallel to the rear base 3. In other words, the first gripping part 9 and the mounting part 12 are at least partially at the same height position (vertical position). Therefore, the power supply section 4 is mounted between the first grip section 9 and the second grip section 10 on a plane parallel to the rear base 3. Further, as described above, the front connecting portion 10B is connected to the main body housing 21 above the electric motor 6, and the mounting portion 12 is provided on the front side of the front connecting portion 10B. Therefore, the power supply section 4 mounted on the mounting section 12 is located above the electric motor 6 and the cutter block 8 located in front of the electric motor 6. In other words, at least a portion of the power supply section 4 overlaps with the drive section 13 when viewed in a direction (vertical direction) orthogonal to the rear base 3.
  • FIG. 9(A) schematically shows the center of gravity position G1 when the power supply section 4 is attached to the electric planer 1 of this embodiment
  • FIG. 9(B) schematically shows the center of gravity position G1 when the power supply section 400 is attached to the electric planer 100 of the comparative example.
  • the center of gravity position G2 in this case is schematically shown.
  • the power supply section 400 is attached to the rear end of the housing 200.
  • the power supply unit 4 is installed between the first gripping part 9 and the second gripping part 10 in the front-rear direction. Therefore, the center of gravity position G1 is located at the bottom of the power supply section 4. More specifically, the center of gravity G1 is located between the first gripping part 9 and the second gripping part 10 near the center of the electric planer 1 in the front-rear direction, and near the upper front side of the electric motor 6. That is, the center of gravity position G1 of the electric planer 1 of the embodiment is located between the user's hand that grips the first grip part 9 and the user's hand that grips the second grip part 10.
  • the electric planer 100 of the comparative example has a mounting part 120 at the rear end of the second gripping part 110 provided at the upper part of the housing 200 behind the first gripping part 900. It has a configuration in which a power supply unit 400 is attached. That is, in the electric planer 100 of the comparative example, the power supply section 400 is attached to the rear end of the housing 200, that is, the rear end of the second gripping section 110. Therefore, in the electric planer 100 of the comparative example, the center of gravity G2 is located behind the vicinity of the center of the electric motor 600, as shown in FIG. 9(B). That is, the center of gravity position G2 is located at the bottom of the hand of the user who grips the second grip part 110 of the electric planer 100 of the comparative example.
  • the electric planer 1 is a working machine that performs work by sliding the upper surface of a workpiece such as wood. Specifically, with the cutter block shaft 8B aligned in the left-right direction, the electric motor 6 is driven by gripping the grip main body 10A and pressing (pulling) the trigger switch 10E. The work is performed by rotating the wood and pushing it forward while placing the front base 33 and rear base 3 on the upper surface of the wood.
  • the cutter 8A held by the cutter block 8 protrudes downward from the lower surface of the front base 33 depending on the vertical position of the front base 33, and the amount of processing on the wood is determined according to the amount of protrusion.
  • the blade 8A protrudes downward from the front base 33 by a small amount, and is configured to scrape (cut) the upper surface of the wood by a small amount. By repeating this process, the top surface of the wood can be made even and flat.
  • the grip main body 10A is preferably formed at an angle along the front-rear direction.
  • the electric planer 1 may also be used to finish a curved surface.
  • it may be used for furniture that has a line-woven surface, surfboards that have a multi-curved surface, and the like. That is, in a workpiece (plate material) having a surface that is inclined in both the front-rear direction and the left-right direction when the width direction is taken as the up-down direction, it may be used for processing the surface.
  • the electric planer 1 must be slid on the curved surface, so if the holding force for the electric planer 1 is lost, the electric planer 1 may slip and fall from the workpiece. Put it away. Therefore, in the case of such curved surface machining work, the ease with which the electric planer 1 can be held in the vertical position may be prioritized over the ease with which it can be pressed downward.
  • the grip shaft is preferably along the vertical direction (at an acute angle or parallel to the vertical direction) so that the grip shaft can be easily operated.
  • machining may be performed by tilting the electric planer 1 in a direction intersecting the machining direction. That is, for example, when working by moving the electric planer 1 in the forward direction, the processing may be performed by tilting the direction in which the front base 33 and the rear base 3 are lined up in the left-right direction. In this way, since the extending direction of the cutter 8A is inclined with respect to the processing direction, the load applied to the cutter block 8 changes, making it easier to control the work. Considering the manner in which the electric planer 1 is tilted for work, it is preferable that the grip shaft is along the vertical direction.
  • the center of gravity position G1 is located in the front compared to the center of gravity position G2 of the electric planer 100 of the comparative example.
  • the electric planer 1 includes a first gripping part 9 provided on one side (front) of the housing 2, a second gripping part 10 provided on the other side (rear) of the housing 2, and a power source part. 4 is mounted between the first grip part 9 and the second grip part 10 on a plane parallel to the rear base 3.
  • the power supply section 4 can be provided in the space between the first gripping section 9 and the second gripping section 10, so compared to the electric planer 100 of the comparative example shown in FIG. This makes it possible to downsize the device.
  • the first gripping part 9, the second gripping part 10, and the power supply part 4 are arranged on a plane parallel to the rear base 3, it also contributes to miniaturization of the electric planer 1 in the vertical direction. Since the electric planer 1 can be downsized in the vertical and horizontal directions, the operability of the electric planer 1 by the user can be improved.
  • the electric planer 1 includes a first gripping part 9 provided on one side (front) of the housing 2, a second gripping part 10 provided on the other side (rear) of the housing 2, and a power supply part 4 is attached, the center of gravity is located between the first grip part 9 and the second grip part 10 on a plane parallel to the rear base 3. That is, the center of gravity is located near the center of the electric planer 1 in the longitudinal direction.
  • the electric planer 1 can be gripped by hand, operability is improved.
  • the electric planer 1 includes a first gripping part 9 provided on one side (front) of the housing 2, a second gripping part 10 provided on the other side (rear) of the housing 2, and a power supply part 4. It includes a mounting part 12 to be mounted.
  • the mounting part 12 has a wall part 12B that protrudes with respect to the second grip part 10 in a direction (left-right direction) that intersects the direction in which the first grip part 9 and the second grip part 10 are arranged (front-back direction). .
  • the first grip portion 9 extends along a direction (vertical direction) orthogonal to the rear base 3. As a result, the grip axis of the first grip part 9 is aligned in the vertical direction. Moreover, the first grip part 9 overlaps with the second grip part 10 in the vertical direction. As a result, the user can easily hold the electric planer 1 and easily fine-tune the position of the electric planer 1 on the workpiece to improve machining accuracy, improving convenience for the user. do.
  • the grip part (grip main body 10A) of the second grip part 10 extends along the direction (vertical direction) orthogonal to the rear base 3.
  • the grip main body 10A is not parallel to the vertical direction. That is, the grip main body 10A extends diagonally. This also makes it easier for the user to hold the electric planer 1 and allows the user to easily fine-tune the position of the electric planer 1 on the workpiece to improve machining accuracy, improving convenience for the user. .
  • the grip main body 10A extends diagonally, it is possible to prevent workability from being impaired when working while pressing downward as in the conventional case.
  • the grip main body 10A is at an angle of about 65° with respect to the lower surface of the rear base 3, but considering convenience, the grip main body 10A is at an angle of 50° to 90° with respect to the lower surface of the rear base 3. It should be within the range of That is, the grip main body 10A may extend at an obtuse angle or in a direction perpendicular to the lower surface of the rear base 3. Note that when the grip main body 10A is at an obtuse angle with respect to the lower surface of the rear base 3, the grip main body 10A may be configured to tilt forward. In other words, the upper end of the grip main body 10A extending in a predetermined direction may be located further forward than the lower end.
  • the angle may be in the range of 55° to 85°. More preferably, the angle may be in the range of 60° to 80°.
  • this feature is combined with the feature that the power supply section 4 or the control unit 5 is arranged between the first gripping part 9 and the second gripping part 10 in the front-back direction, so that the electric planer 1 can be moved in the front-back direction more favorably. Can be made smaller.
  • the grip portion 9A of the first grip portion 9 protrudes above the upper end portion 25 of the housing 2, which is the end portion on the opposite side from the rear base 3.
  • the housing 2 is not located behind the first gripping part 9, so that the user who grips the first gripping part 9 and the housing 2 do not interfere with each other.
  • the user can easily grip the first gripping part 9, and the operability of the electric planer 1 can be improved.
  • At least a portion of the attached power supply section 4 overlaps with the electric motor 6, which is the drive section 13, the rotating shaft 6A, and the cutter block 8 in the vertical direction. Thereby, the electric planer 1 can be downsized in the front-rear direction.
  • the power supply section 4 is mounted from above away from the rear base 3 to below toward the housing 2 in the direction intersecting the rear base 3 (the direction in which the front connection section 10B is inclined). This makes it easier to mount the power supply unit 4. Furthermore, compared to the case where the power supply section 4 is mounted without tilting in the vertical direction, a space between the power supply section 4 and the first gripping section 9 is secured, so that the first gripping section 9 can be gripped. Improves operability during cutting operations. Furthermore, since the longitudinal direction of the power supply section 4 attached to the attachment section 12 is inclined with respect to the vertical direction along the inclination of the attachment section 12, it is possible to downsize the electric planer 1 on which the power supply section 4 is attached in the vertical direction. I can contribute.
  • the electric planer 1 includes a lifting mechanism 15 that is operated by an operator and moves the front base 33 up and down.
  • the elevating mechanism 15 has an adjustment mechanism 16 that can adjust the operating load when moving the front base 33 up and down.
  • the operating load of the grip portion 9A when changing the depth of cut by raising and lowering the front base 33 can be adjusted to the size desired by the user.
  • the operability of the electric planer 1 is improved. Further, since the operating load (the amount of compression of the elastic body 16B) does not change depending on the position of the front base 33, operability can be maintained.
  • the control unit 5 is arranged at a position farther from the rear base 3 than the electric motor 6 in the vertical direction orthogonal to the rear base 3. Therefore, compared to, for example, the case where the control unit 5 is housed in the rear housing 24 at the rear of the main body housing 21, the height and longitudinal dimensions of the rear housing 24 can be reduced. Thereby, a space is formed between the grip body 10A of the second grip part 10 and the rear of the housing 2, that is, an inner space (grip space) of the loop structure formed by the second grip part 10 and the housing 2. Since the grip body 10A can be secured widely, the user can easily grip the grip main body 10A. As a result, the operability of the electric planer 1 is improved.
  • the above-mentioned gripping space may become narrow.
  • the position of the grip main body 10A is moved upward or backward, the size of the entire device in the vertical direction increases.
  • the inclination angle of the main body 10A approaches horizontal, which may impair the above-mentioned operability.
  • the inclination angle of the grip main body 10A with respect to the rear base 3 can be kept small, so that the electric planer 1 can be downsized in the vertical direction.
  • the electric planer 1 of the embodiment described above can be modified as follows.
  • FIG. 10 is an external side view of the electric planer 130 of the first modification
  • FIG. 11 is a sectional view of the electric planer 130 shown in FIG. 10.
  • FIG. 12 is an external view of the electric planer 130 of the first modification as seen from the rear.
  • the shape of a part of the housing 802 the shape of a part of the first gripping part 809, the shape of a part of the second gripping part 810, the mounting part 812, and the lifting mechanism 815 are different from each other. Different from the form.
  • the housing 802 of the electric planer 130 of the first modification includes a main body housing 21, a gear housing 22, a front housing 23, and a rear housing 824.
  • a suction port 21A is formed on the right side surface of the main body housing 21 and is formed of a plurality of holes that communicate the outside of the housing 2 and the motor accommodating portion 2A.
  • the rear housing 824 is provided at the rear of the main body housing 21 and has a shape higher in the vertical direction than the rear housing 24 of the embodiment.
  • a control section accommodating section 2B in which the control unit 5 is accommodated is formed inside the rear housing 824. That is, the control unit 5 is provided behind the electric motor 6 accommodated in the motor accommodating portion 2A of the main body housing 21.
  • This control unit 5 and power supply section 4 are electrically connected by wiring 5A.
  • the connection terminal 12A and the control unit 5 are electrically connected by the wiring 5A.
  • This wiring 5A passes through a wiring accommodating portion 2C in the housing 2 formed above the main body housing 21, that is, above the electric motor 6, is connected to the connection terminal 12A at one end, and is connected to the connection terminal 12A at the other end. It is connected to the control unit 5 at the section.
  • intake ports 24B are formed on both left and right side surfaces of the rear housing 824, respectively.
  • the front connecting part 810B of the second gripping part 810 also has an inclination with respect to the up-down direction and extends toward the rear upper part.
  • the front connecting portion 810B extends in a direction inclined at approximately 25 degrees with respect to the vertical direction. That is, the angle of inclination is smaller than that of the front connecting portion 810B of the embodiment.
  • the inclination is not limited to 25°, and may range from 20° to 30°, for example.
  • the second grip portion 10 is at an angle of about 50° with respect to the lower surface of the rear base 3.
  • the second grip portion 10 may be located at an angle of 35° to 55° with respect to the lower surface of the rear base 3.
  • the wiring accommodating portion 2C in the housing 2 extends rearward from the rear lower part of the front connecting portion 10B where the front connecting portion 810B and the main body housing 21 are connected.
  • the switch mechanism 10D is housed inside the grip main body 810A, and is electrically connected to the control unit 5 via wiring 5B.
  • This wiring 5B passes through the inside of the grip main body 810A and the inside of the rear connecting portion 810C, is connected to the trigger switch 10E at one end, and is connected to the control unit 5 at the other end. .
  • the mounting section 812 has a wall section 812B that connects to the front connecting section 810B of the second gripping section 810.
  • the wall portion 812B has a shape that protrudes from the front connecting portion 810B, and is inclined along the slope of the front connecting portion 810B of the second gripping portion 810. That is, the wall portion 812B protrudes from the second grip portion 810 along the left-right direction that intersects the front-rear direction in which the first grip portion 809 and the second grip portion 810 are arranged, and separates from the rear base 3 in the vertical direction. tilts backwards in the vertical direction.
  • the power supply section 4 is mounted downward toward the housing 802 from above along the direction intersecting the rear base 3, that is, the direction in which the front connection section 810B is inclined. As described above, since the wall portion 812B is inclined along the slope of the front connection portion 810B, the power supply unit 4 is attached along the direction from the rear upper part to the front lower part along the slope of the wall portion 812B. It can be said that it will be done.
  • the first grip part 809 includes a grip part 809A and an operation part 809C in addition to the rotation shaft 9D of the embodiment.
  • the grip portion 809A is provided at the upper part of the front housing 23.
  • the grip portion 809A is formed in a shape extending in the vertical direction, and its lower end is located above the upper end portion 25 of the housing 2.
  • the grip portion 809A engages with the upper end of the rotating shaft 9D.
  • the operating portion 809C is attached to the rotating shaft 9D and extends along a direction perpendicular to the up-down direction.
  • the operating unit 809C is rotatable about the rotation axis 9D.
  • the rotating shaft 9D rotates with respect to the front housing 23 when the user rotates the operating portion 809C.
  • the depth of cut is adjusted by the user rotating the operating section 809C.
  • FIG. 13 is a partial cross-sectional view showing the vicinity of the elevating mechanism 815 of the electric planer 130.
  • the elevating mechanism 815 in the first modification includes the grip portion 809A, the rotating shaft 9D, and an adjusting mechanism 816 provided on the rotating shaft 9D.
  • the adjustment mechanism 816 includes a nut member 816F in addition to the spacer member 16A and elastic body 16B of the embodiment.
  • the nut member 816F is screwed onto the rotating shaft 9D, and is configured to be vertically movable by rotating with respect to the rotating shaft 9D.
  • the nut member 816F is screwed together with the rotating shaft 9D as described above, and can be moved up and down by rotating with respect to the rotating shaft 9D.
  • the nut member 816F is connected at its upper end to the lower end of the grip portion 809A. Further, the above-mentioned operating portion 809C extending in the radial direction L1 of the rotating shaft 9D is attached to the nut member 816F.
  • the spacer member 16A is disposed below the nut member 816F and provided on the rotating shaft 9D. Similarly to the embodiment, the spacer member 16A is urged upward by the elastic body 16B.
  • the amount of compression of the elastic body 16B changes, and a friction force is generated at the friction force generation point P1 in accordance with the amount of compression of the elastic body 16B.
  • the operating load of the grip portion 9A is adjusted.
  • the front housing 23 includes a metal plate-shaped washer 17 as an intervening member at the portion where the rotating shaft 9D and the front housing 23 slide.
  • the front housing 23 includes a metal plate-shaped washer 18 as an intervening member at a portion where the elastic body 16B and the front housing 23 contact.
  • the partial sectional view showing the vicinity of the elevating mechanism 15 shown in FIG. 13 shows a state in which the spacer member 16A is fixed at a position where the amount of compression of the elastic body 16B becomes small.
  • FIG. 13 a procedure for adjusting the operating load of the grip portion 9A will be described.
  • the operating load of the grip portion 9A is changed from a small state to a large state.
  • the screws fixing the spacer member 16A are Loosen member 16D. This makes the spacer member 16A movable.
  • the elastic body 16B When the spacer member 16A descends to a desired position together with the nut member 816F, the elastic body 16B is compressed by a predetermined amount. By tightening the screw member 16D in this state, the position of the spacer member 16A on the rotating shaft 9D is fixed. As a result, the elastic body 16B is adjusted to be large. More preferably, after fixing the position of the spacer member 16A, the nut member 816F is rotated and lowered again, so that rattling between the front housing 23 and the nut member 816F can be suppressed, and the elevating mechanism 15 and the adjustment mechanism 16 response can be improved.
  • the nut member 816F Since the nut member 816F is lowered by the operation of the operating part 809C as described above, a space is created between the upper end of the nut member 816F and the lower end of the grip part 809A when the position of the spacer member 16A is fixed. ing.
  • the user rotates the grip portion 809A and lowers the grip portion 809A to a position where the lower end of the grip portion 809A contacts the upper end of the nut member 816F.
  • the amount of compression of the elastic body 16B is adjusted to be large, and as a result, the grip portion 809A, the nut member 816F, the spacer member 16A, and the rotating shaft 9D are integrated, and the operating load of the grip portion 980A is reduced. It will be in a state where it is adjusted so that it becomes larger.
  • the power supply section 4 is mounted along the slope of the wall section 812B of the mounting section 812 from the rear upper part to the front lower part. As a result, compared to the case where the power supply unit 4 is mounted without tilting in the vertical direction, a space between the power supply unit 4 and the first gripping part 809 is secured, so that the first gripping part 809 can be gripped. Improves operability during cutting. Further, since the longitudinal direction of the power supply section 4 attached to the attachment section 12 is inclined with respect to the vertical direction along the inclination of the attachment section 812, the electric planer 130 with the power supply section 4 attached thereto can be downsized in the vertical direction. I can contribute.
  • the first modification described above can be modified as follows.
  • FIG. 14(A) is a partial external side view of a modified electric planer 130A
  • FIG. 14(B) is a partial sectional view of the electric planer 130A shown in FIG. 14(A).
  • a spring spring spring member
  • the elastic body 16B included in the adjustment mechanism 816 that is, a spring is provided as an elastic body 16B between the front housing 23 and the spacer member 16A.
  • the operating load of the grip portion 809A when changing the depth of cut by raising and lowering the front base 33 is lightened. It can be easily changed to make it lighter or heavier. As a result, the operability of the modified electric planer 130A is also improved.
  • the spacer member 16A is provided in the electric planer 130 of the first modified example and the electric planer 130A of the modified example described above has been described.
  • the adjustment mechanism 816 it is sufficient that the nut member 816F and the elastic body 16B are provided, and the spacer member 16A does not necessarily need to be provided.
  • the power supply section 4 is mounted in a direction in which the longitudinal direction intersects the front-rear direction. Specifically, the power supply unit 4 is installed so that its longitudinal direction is parallel to the left-right direction of the electric planer 130B. That is, like the embodiment and the first modification, the electric planer 130B of the second modification is housed inside the housing 802, and includes the electric motor 6, the rotating shaft 6A, and the cutter block 8 provided on the rotating shaft 6A.
  • the drive unit 13 includes a drive unit 13 , a power supply unit 4 that is detachably attached to the housing 2 , a first grip part 809 , and a second grip part 810 .
  • the power supply section 4 is mounted between the first grip section 809 and the second grip section 810 on a plane parallel to the rear base 3.
  • the longitudinal direction of the installed power supply section 4 intersects the front-rear direction in which the first gripping section 809 and the second gripping section 810 are arranged.
  • FIGS. 15(A), 15(B), and 15(C) show side views of a second modified electric planer 130B having the above configuration.
  • FIGS. 15(A), 15(B), and 15(C) show an electric planer 130B obtained by modifying the electric planer 130 of the first modification.
  • the electric planer 130B of the second modification can be configured by modifying the electric planer 1 of the embodiment.
  • FIG. 15(A) shows a case where the mounting part 812 provided in front of the second grip part 810 is provided along the up-down direction. That is, in the electric planer 130B of the second modification, unlike the electric planer 1 of the embodiment and the electric planer 130 of the first modification, the mounting portion 812 is not inclined toward the rear side. In this case, the power supply section 4 is mounted on the mounting section 812 with the short side direction of the power supply section 4 along the vertical direction. As a result, the longitudinal direction perpendicular to the transversal direction of the power supply unit 4 is along the left-right direction.
  • FIG. 15(B) shows a case where the mounting part 812 provided in front of the second grip part 810 is provided along the left-right direction.
  • the mounting portion 812 is provided at the upper part of the main body housing 21 of the housing 802 along the left-right direction. That is, in the electric planer 130B of the second modification, unlike the electric planer 1 of the embodiment and the electric planer 130 of the first modification, the mounting portion 812 is not inclined toward the rear side.
  • the power supply section 4 is mounted on the mounting section 812 with the transverse direction of the power supply section 4 along the front-rear direction. As a result, the longitudinal direction orthogonal to the lateral direction of the power supply section 4 is along the left-right direction.
  • FIG. 15C also shows a case where the mounting part 812 provided in front of the second grip part 810 is provided along the left-right direction.
  • the mounting part 812 is provided at the upper front end of the front connecting part 810B, facing the upper part of the housing 802.
  • the mounting portion 812 is provided with a longitudinal direction along the left-right direction. That is, the attachment of the power supply section 4 is reversed in the vertical direction from the case shown in FIG. 15(B).
  • the power supply section 4 is mounted on the mounting section 812 with the short direction of the power supply section 4 along the front-rear direction.
  • the longitudinal direction orthogonal to the lateral direction of the power supply section 4 is along the left-right direction.
  • the longitudinal direction of the power supply section 4 intersects with the front-rear direction, the following effects can be obtained in addition to at least one of the effects (1) and (2) obtained by the embodiment. It will be done. That is, it is possible to downsize the electric planer 130B in the front-rear direction. Furthermore, since the power supply unit 4 does not interfere with the user's hand when the user is gripping the first gripping portion 809 and performing the machining process, operability is improved.
  • FIG. 16 is an external view of the right side of an electric planer 1A of a third modification.
  • FIG. 17 is a sectional view of an electric planer 1A according to a third modification.
  • FIG. 18 is a sectional view of the electric planer 1A taken along line BB shown in FIG. 16.
  • the third modification differs from the electric planer 1 of the embodiment in that, as shown in FIG. 18, the electric motor 6 included in the electric planer 1A is a brushless motor.
  • the control unit 51A is equipped with an inverter circuit. Therefore, the control unit 51A is larger than the control unit 5 of the embodiment shown in FIG. 2.
  • a cooling opening 10F is formed on the right side of the front connection section 10B of the second gripping section 10, as shown in FIG. Ru. That is, the cooling opening 10F is formed in the vicinity of the control section accommodating section 2B in which the control unit 51A is accommodated.
  • the cooling opening 10F is an opening that communicates between the inside and outside of the housing 2. As described above, when the fan 7 is driven to rotate as the electric motor 6 is driven to rotate and fan wind is generated in the housing 2, air outside the electric planer 1A flows into the housing 2 through the cooling opening 10F. Inflow. Since the cooling opening 10F is formed near the control unit 51A, the control unit 51A is cooled by air from the outside flowing in through the cooling opening 10F. As a result, it is possible to improve the cooling efficiency of the control unit 51A, which has become larger and generates more heat.
  • FIG. 16 shows a case where three openings are formed as the cooling opening 10F.
  • the number and shape of the cooling openings 10F are not limited to the number and shape shown in FIG. 16, and may be any number or shape that does not inhibit the cooling efficiency of the control unit 51A.
  • the mounting portion 12, 812 may be provided in front of the second gripping portion 10, 810, and may have an inclination toward the rear with respect to the up-down direction. In this case, the mounting part 12, 812 may be inclined at a different angle from the front connecting part 10B, 810B of the second gripping part 10, 810, or , 810B may be provided separately.
  • the power supply section 4 is mounted to the mounting section 12, 812 from the rear upper part toward the front lower part. That is, the electric planer of the fourth modification is housed inside the housing 2, 802, similar to the electric planer 1 of the embodiment, the electric planers 130 and 130A of the first modification, and the electric planer 1A of the third modification.
  • a drive section 13 including an electric motor 6, a rotating shaft 6A, and a cutter block 8 provided on the rotating shaft 6A, a power supply section 4 detachably attached to the housing 2, 802, a first gripping section 9, 809 and second gripping parts 10 and 810.
  • the power supply section 4 is mounted between the first gripping section 9, 809 and the second gripping section 10, 810 on a plane parallel to the rear base 3, from the rear upper part to the front lower part.
  • FIGS. 19A and 19B show an embodiment in which the present invention is applied to a belt sander.
  • FIG. 19A is a view from the left side
  • FIG. 19B is a view from the right side.
  • the belt sander 101 shown in FIGS. 19A and 19B includes a housing 102, a first gripping part 109 and a second gripping part 110 connected to the housing 102, a trigger 103 attached to the second gripping part 110, and a housing 102.
  • the belt sander 101 has an abrasive belt 108 shown by a two-dot chain line that spans a driving roller 141 and a driven roller 142, and the horizontal lower surface portion of the abrasive belt 108 corresponds to a planar working section in the present invention.
  • the driving roller 141 rotates, and the rotation of the driving roller 141 is transmitted to the driven roller 142 via the abrasive belt 108, causing the rotation of the driving roller 141, the driven roller 142, and the abrasive belt 108. drive is made.
  • the surface of the workpiece can be polished by applying a rotationally driven polishing belt 108 onto the workpiece or sliding it in the direction in which the driving roller 141 and the driven roller 142 are arranged.
  • the battery 104 is placed between two gripping parts (separated in the direction in which the driving roller 141 and the driven roller 142 are arranged), that is, the first gripping part 109 and the second gripping part 110. Because of this location, compactness and improved operability can be achieved.
  • the electric planer 1, 1A, 130, 130A, 130B and the belt sander 101 were used as working machines having a planar working part, but circular saws, jigsaws, routers, etc. Other working machines having a flat working part (base) may also be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Abstract

La présente invention concerne l'efficacité fonctionnelle d'une machine de travail. Une raboteuse électrique (1) présentant une base arrière plate (3) comprenant : un logement (2) ; un moteur électrique (6) logé à l'intérieur du logement (2) ; une unité d'entraînement (13) comprenant un arbre d'entraînement entraîné par le moteur électrique (6), et un bloc de coupe (8) disposé au niveau de l'arbre d'entraînement ; une unité d'alimentation d'énergie électrique (4) pour alimenter de l'énergie électrique à l'unité d'entraînement (13), l'unité d'alimentation d'énergie électrique (4) pouvant être montée de manière détachable sur le logement (2) ; une première unité de préhension (9) disposée au niveau d'un côté du logement (2) dans un sens prescrit ; et une seconde unité de préhension (10) disposée au niveau de l'autre côté du logement (2) dans le sens prescrit. L'unité d'alimentation d'énergie électrique (4) est montée entre la première unité de préhension (9) et la seconde unité de préhension (10) dans le sens prescrit.
PCT/JP2023/016760 2022-04-28 2023-04-27 Machine de travail WO2023210782A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-075077 2022-04-28
JP2022075077 2022-04-28

Publications (1)

Publication Number Publication Date
WO2023210782A1 true WO2023210782A1 (fr) 2023-11-02

Family

ID=88518873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/016760 WO2023210782A1 (fr) 2022-04-28 2023-04-27 Machine de travail

Country Status (1)

Country Link
WO (1) WO2023210782A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08118310A (ja) * 1994-10-26 1996-05-14 Ryobi Ltd 切削幅表示部が形成された鉋
JP2010201612A (ja) * 2009-02-27 2010-09-16 Andreas Stihl Ag & Co Kg バッテリーパックを備えた電気作業機
WO2014132744A1 (fr) * 2013-02-27 2014-09-04 日立工機株式会社 Raboteuse électrique portative
JP2015196213A (ja) * 2014-03-31 2015-11-09 日立工機株式会社 コードレス電動工具
WO2021230172A1 (fr) * 2020-05-14 2021-11-18 工機ホールディングス株式会社 Machine de travail

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08118310A (ja) * 1994-10-26 1996-05-14 Ryobi Ltd 切削幅表示部が形成された鉋
JP2010201612A (ja) * 2009-02-27 2010-09-16 Andreas Stihl Ag & Co Kg バッテリーパックを備えた電気作業機
WO2014132744A1 (fr) * 2013-02-27 2014-09-04 日立工機株式会社 Raboteuse électrique portative
JP2015196213A (ja) * 2014-03-31 2015-11-09 日立工機株式会社 コードレス電動工具
WO2021230172A1 (fr) * 2020-05-14 2021-11-18 工機ホールディングス株式会社 Machine de travail

Similar Documents

Publication Publication Date Title
JP6474764B2 (ja) 切断機
US20160176064A1 (en) Cutting device
JP6129668B2 (ja) 電動工具
JP7078384B2 (ja) 電動工具
JP6849088B2 (ja) 電気機器
JP4998846B2 (ja) コードレス電動工具
WO2014119132A1 (fr) Machine de découpe de bureau
JP6238064B2 (ja) 電動かんな
US20150336287A1 (en) Portable cutting tool
US20220297209A1 (en) Cutting tool
JP2016087740A (ja) 電動工具
JP2015027706A (ja) 電動工具
JP2010201598A (ja) 携帯用切断機
WO2014119131A1 (fr) Outil de coupe rechargeable
JP2014079874A (ja) 動力工具
EP3388177B1 (fr) Outil de découpe portable
WO2021010136A1 (fr) Outil électrique
CN113649641B (zh) 电圆锯
WO2023210782A1 (fr) Machine de travail
JP6480975B2 (ja) 電動工具
JP6615851B2 (ja) 卓上切断機
CN102581376B (zh) 往复切割工具
JP3376463B2 (ja) チェーンソー
JP2022150258A (ja) 携帯用研磨機
JP2024018476A (ja) 作業機

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23796517

Country of ref document: EP

Kind code of ref document: A1