Portable processing machine

Abstract

To additionally equip a portable processing machine such as a trimmer with a radio communication unit without spoiling the compactness although it is difficult to add newly, an electronic component such as the radio communication unit since a start switch and a speed change operation unit are accommodated compactly in the limited space between an electric motor and a battery attachment part when a battery is attached on a housing.SOLUTION: A speed change operation unit 33 and a radio communication unit 34 are accommodated in an electric component accommodation part 30 between an electric motor 10 and a controller 31. The speed change operation unit 33 and radio communication unit 34 are positioned at a same height along a common virtual plane S orthogonal to a motor axis J. The speed change operation unit 33 and radio communication unit 34 are arranged at right and left side parts along a short side 7S of the battery 7. A wiring space is secured before and behind an electric component accommodation part 30.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a portable processing machine, such as a relatively small-sized processing machine like a laminate trimmer used for, for example, edging or grooving wood, which is manually moved and operated by a user to perform various processes.

Background Art

[0002] As disclosed in Patent Documents 1 and 2, a trimmer has a configuration in which an electric motor is installed inside a cylindrical housing that can be gripped with one hand. The electric motor is installed vertically along the motor axis with respect to the axis of the housing. A cutting tool rotated by the electric motor protrudes downward from a base attached to the lower part of the housing. Edge trimming is performed by moving the cutting tool along the edge while gripping the housing with one hand and bringing the base into contact with the upper surface of the workpiece.

[0003] In the trimmer of Patent Document 1, the upper part of the electric motor extends up to the vicinity of the upper part of the housing. Therefore, various electrical components such as a control board and a speed change controller are compactly accommodated around the upper part of the electric motor at the upper part of the housing. In the trimmer of Patent Document 2, a DC brushless motor is used for the electric motor. Since the DC brushless motor is short in the axial direction, a dead space often occurs between the end of the electric motor and the end of the housing. In this case, at the upper part of the housing, various electrical components such as a controller and a speed change dial are compactly accommodated by utilizing the dead space between the electric motor and the battery.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

[0005] In general, portable machining tools such as trimmers require a compact design (operability) that makes them easy for the user to grip and move. In conventional trimmers, various electrical components were compactly housed near the top of the housing. Therefore, it was difficult to add new electrical components without compromising compactness. This disclosure aims to make it possible to easily add new electrical components to a portable machining tool by devising the arrangement of various electrical components. [Means for solving the problem]

[0006] According to one aspect of this disclosure, a portable machining center comprises, for example, an electric motor housed in a housing, and a cutting tool that is partially or entirely exposed to the outside of the housing and rotated by the electric motor. The portable machining center comprises, for example, a controller housed in the housing so as to be aligned with the axial direction of the electric motor and the motor shaft, and which controls the operation of the electric motor. The portable machining center comprises, for example, a first electrical component and a second electrical component housed in an electrical component housing between the controller and the electric motor. The first electrical component and the second electrical component are arranged side by side on the same plane perpendicular to the axis of the motor shaft.

[0007] Therefore, the first and second electrical components are arranged side by side on the same plane, allowing them to be compactly housed in the electrical component housing. This makes it easier to add new electrical components without compromising the compactness of the portable processing machine.

[0008] According to other aspects of this disclosure, a portable machining center includes, for example, an electric motor housed in a housing, and a contact portion positioned perpendicular to the motor axis of the electric motor and in contact with a workpiece. The portable machining center includes, for example, a battery mounted on the opposite side of the electric motor from the contact portion, and a cutting tool protruding from the housing toward the contact portion and rotated by the electric motor. The portable machining center includes, for example, a controller housed in the housing on the battery side of the electric motor and controlling the operation of the electric motor. The portable machining center includes, for example, a wireless communication adapter detachably attached to an electrical component housing between the controller and the electric motor and communicating wirelessly with an external device.

[0009] Therefore, external equipment such as a dust collector can be linked to the portable processing machine. This improves the operability and work efficiency of the portable processing machine, thereby increasing the efficiency of processing work. The wireless communication adapter can be removed and reused with other equipment.

[0010] According to yet another aspect of this disclosure, the electric work machine comprises, for example, a battery, an electric motor housed in a housing and driven by the battery, and a controller housed in the housing for controlling the operation of the electric motor. The electric work machine comprises, for example, a first electrical component and a second electrical component housed in an electrical component housing within the housing. For example, the first electrical component and the second electrical component are positioned relative to each other via an internal support member. For example, the internal support member has a first positioning portion on a first side for positioning the first electrical component, and a second positioning portion on a second side opposite the first side for positioning the second electrical component. As a result, for example, the three components, the first electrical component, the internal support member and the second electrical component, are arranged in a straight line.

[0011] Therefore, the three components—the first electrical component, the internal support member, and the second electrical component—are compactly housed in the electrical component housing while being positioned relative to each other. This makes it easy to add new electrical components without compromising the compactness of the electric work machine. [Brief explanation of the drawing]

[0012] [Figure 1] This is an overall perspective view of the portable processing machine according to the first embodiment. [Figure 2] This is a front view of a portable processing machine according to the first embodiment. [Figure 3] This is a cross-sectional view taken along line III-III in Figure 2 of a portable processing machine according to the first embodiment. [Figure 4] This is a cross-sectional view taken along line IV-IV in Figure 3 of a portable processing machine according to the first embodiment. [Figure 5] This is a top view of the portable processing machine according to the first embodiment, as seen from the direction of arrow V in Figure 1. This figure shows the machine with the battery removed. [Figure 6] This is an exploded perspective view of the portable processing machine according to the first embodiment. This figure shows the machine as viewed from the left rear. [Figure 7] This is an exploded perspective view of the portable processing machine according to the first embodiment. This figure shows the machine as viewed from the left front. [Figure 8] This is an exploded perspective view of the portable processing machine according to the first embodiment. This figure shows the machine as viewed from the left rear and diagonally below. [Figure 9] This is an exploded perspective view of a portable processing machine according to the first embodiment. This figure shows the cap separated and the second electrical component removed. [Figure 10] This is an overall perspective view of a portable processing machine according to the second embodiment. This figure shows the initial state in which the processing machine body is positioned at the upper moving end. [Figure 11] This is an overall perspective view of a portable processing machine according to the second embodiment. This figure shows the processing machine body in a state where it is pushed down to the lower moving end. [Figure 12] This is a view taken along arrow XII in Figure 11, and is a right side view of a portable processing machine according to the second embodiment. [Figure 13] This is a view taken along arrow XIII in Figure 12, and is a plan view of a portable processing machine according to the second embodiment. [Figure 14] Figure 12 shows a cross-sectional view taken along the line XIV-XIV, which is a cross-sectional view of a portable processing machine according to the second embodiment. [Figure 15] It is a sectional view taken along the line XV-XV in FIG. 13, and is a longitudinal sectional view of a portable processing machine according to the second embodiment. [Figure 16] It is a sectional view taken along the line XVI-XVI in FIG. 15, and is a cross-sectional view of a drive unit. [Figure 17] It is an exploded perspective view of an electric component housing portion according to the second embodiment. In this figure, the right half housing is shown. [Figure 18] It is an exploded perspective view of an electric component housing portion according to the second embodiment. In this figure, the left half housing is shown.

Modes for Carrying Out the Invention

[0013] In one or more embodiments, for example, a portable processing machine includes a battery having a rectangular parallelepiped shape with a long side and a short side. For example, the short side of the battery extends orthogonally to the axis of the motor shaft. For example, the electric component housing portion has a housing long side parallel to the long side of the battery and a housing short side parallel to the short side of the battery. For example, the first electric component and the second electric component are arranged side by side along the housing short side. Thereby, a space for arranging other electric components such as lead wires and connectors is secured in front of or behind the first electric component and the second electric component.

[0014] In one or more embodiments, for example, the first electric component has a main body portion and an operation portion provided movably with respect to the main body portion. The operation portion can be configured to protrude outside the housing through a window portion provided in the housing. Thereby, while ensuring the operability of the operation portion, the compactness of the first electric component is ensured.

[0015] In one or more embodiments, for example, the second electric component is detachably installed in the electric component housing portion through an opening formed in the housing. The housing is provided with a cap, for example, that closes the opening and forms a part of the side wall of the housing, detachably. By forming a part of the side wall of the housing with the cap, the compactness around the opening is ensured. <00001

[0016] In one or more embodiments, for example, the first electrical component and the second electrical component are arranged side by side along the direction in which the second electrical component is attached to and detached from the electrical component housing. This allows the second electrical component to be attached and detached without being affected by other electrical components such as lead wires.

[0017] In one or more embodiments, for example, the first electrical component and the second electrical component are positioned relative to each other via an internal support member. Thus, the relative positioning of the first electrical component and the second electrical component is ensured.

[0018] In one or more embodiments, for example, the internal support member has a first positioning portion on the first side for positioning a first electrical component, and a second positioning portion on the second side opposite the first side for positioning a second electrical component. Thus, the first electrical component and the second electrical component are positioned relative to each other along the longitudinal direction of the internal support member.

[0019] In one or more embodiments, for example, the second positioning portion of the internal support member includes a surrounding portion into which the second electrical component is detachably inserted. This positions the second electrical component in the vertical and horizontal directions. Furthermore, good assembly of the second electrical component is ensured.

[0020] In one or more embodiments, for example, the controller is positioned with the mounting side of the circuit components facing downward toward the electrical component housing. Therefore, circuit components such as lead wires and capacitors are compactly arranged relative to the first and second electrical components.

[0021] In one or more embodiments, for example, a contact portion that contacts the workpiece is provided in a position perpendicular to the motor shaft of the electric motor. For example, a window portion for viewing the workpiece is provided on one surface of the housing parallel to the motor shaft of the electric motor. For example, when the motor axis direction is vertical and the side with the window portion is the front, the first electrical component and the second electrical component are arranged side by side in the left-right direction facing the window portion. Therefore, the first electrical component and the second electrical component are arranged on the left and right sides facing the front of the housing. This ensures good operability of the first electrical component and the second electrical component.

[0022] In one or more embodiments, for example, a third electrical component for starting is provided on the front of the housing. For example, the first, second, and third electrical components are arranged side by side on the same plane perpendicular to the axis of the motor shaft. This allows the first, second, and third electrical components to be compactly arranged in the electrical component housing. Furthermore, good operability of the first, second, and third electrical components is ensured.

[0023] In one or more embodiments, for example, the first electrical component is a speed control unit operated when changing the rotational speed of an electric motor. Furthermore, for example, the second electrical component is a wireless communication adapter detachably housed in the electrical component housing and used for wireless communication with external devices. Therefore, a portable processing machine with a speed control function can be linked to external devices such as a dust collector. This improves the operability and work efficiency of the portable processing machine. The wireless communication adapter can be removed and reused in other devices.

[0024] In one or more embodiments, for example, the first electrical component has a cylindrical shape. For example, the first positioning portion of the internal support member has a restricting portion that extends in the longitudinal direction of the first electrical component and restricts the radial displacement of the first electrical component. Thus, the first electrical component is positioned by the first positioning portion of the internal support member in a state where radial displacement is restricted.

[0025] In one or more embodiments, for example, the second positioning portion of the internal support member includes a surrounding portion into which the second electrical component is detachably inserted. This allows the second electrical component to be positioned, for example, in the vertical and horizontal directions. Furthermore, good assembly of the second electrical component is ensured.

[0026] In one or more embodiments, for example, the surrounding portion has a cutout for assembly work of the second electrical component to the housing. This improves the ease of assembly of the second electrical component to the housing.

[0027] In one or more embodiments, for example, the housing has a split structure that can be divided into two halves, left and right, along the motor axis direction of the electric motor. For example, an internal support member is positioned in the housing by being sandwiched between the right and left halves of the housing. Therefore, the configuration for positioning the internal support member relative to the housing is simplified. In addition, the ease of assembling the internal support member to the housing is improved. [Examples]

[0028] As shown in Figures 1-4, in the first embodiment, a portable woodworking cutting machine, commonly known as a trimmer, is exemplified as the portable processing machine 1. A rechargeable portable processing machine 1 is also exemplified. The portable processing machine 1 has a window portion 6d. The operator holds the portable processing machine 1 with the window portion 6d facing away from the operator. The side with the window portion 6d is the front of the portable processing machine 1, and the opposite side is the rear. The right, left, up, and down directions correspond to the operator's directions when the front of the portable processing machine 1 is facing the operator.

[0029] The portable processing machine 1 is equipped with a housing 2. As shown in Figures 6-9, the housing 2 has a left and right split structure. The housing 2 is configured such that the right split portion 2R and the left split portion 2L are screw-connected to each other. Figures 6-8 show four screws 2S for screw connection. In Figures 6-8, the screws 2S are shown tightened into the right split portion 2R for illustrative purposes. In reality, the four screws 2S are tightened with the right split portion 2R and the left split portion 2L butted together.

[0030] The housing 2 is a molded part made of synthetic resin. The housing 2 has a cylindrical section 2B with an axis in the vertical direction. An electric motor 10 is housed inside the cylindrical section 2B. The motor shaft 11 of the electric motor 10 is oriented in the vertical direction. The motor axis J of the motor shaft 11 coincides with or is parallel to the axis of the cylindrical section 2B. A roughly rectangular box-shaped bulge 2A is integrally formed on the upper part of the cylindrical section 2B. As shown in Figures 6 to 10, the cylindrical section 2B and the bulge 2A are constructed by combining the right cylindrical section 2RB and right bulge 2RA formed in the right half section 2R, and the left cylindrical section 2LB and left bulge 2LA formed in the left half section 2L. A cylindrical cover case 20 is provided on the outside of the cylindrical section 2B. The cylindrical section 2B is press-fitted into the cover case 20. The cover case 20 is made of aluminum.

[0031] A DC brushless motor is used for the electric motor 10. The motor shaft 11 of the electric motor 10 is supported by the cylindrical part 2B so as to be rotatable around the motor axis J via an upper bearing 12 and a lower bearing 13. A cooling fan 14 is attached to the motor shaft 11. The cooling fan 14 rotates together with the motor shaft 11. The rotation of the cooling fan 14 introduces outside air into the housing 2, cooling the electric motor 10.

[0032] The lower part of the motor shaft 11 protrudes downward from the bottom of the cylindrical part 2B. A rod-shaped cutting tool (tip tool 15), for example, is coaxially mounted on the protruding part of the motor shaft 11. The tip tool 15 can be easily replaced with other tip tools depending on the work purpose.

[0033] A rectangular base 5 (contact portion) is attached to the lower part of the housing 2. The tip tool 15 protrudes from the lower surface of the base 5. The base 5 is in contact with the upper surface of the workpiece W, and the protruding portion of the tip tool 15 is in contact with the edge of the workpiece W to perform edging, or the tip tool 15 is used to cut from the edge to perform grooving.

[0034] A base mounting portion 6 is integrally provided on the upper surface of the base 5. The base mounting portion 6 has a C-shape. The base mounting portion 6 is fixed along the outer circumferential surface of the housing 2 by tightening the thumb screw 6a. This fixes the base 5 below the housing 2. The fixed state of the base mounting portion 6 to the housing 2 can be loosened by loosening the thumb screw 6a. By loosening the fixed state, the vertical position of the base 5 relative to the housing 2 can be adjusted. By changing the vertical position of the base 5, the amount of protrusion of the tip tool 15 from the base 5 can be adjusted. This allows, for example, adjustment of the depth of grooving.

[0035] The base mounting section 6 is equipped with a fine-adjustment wheel gear 6b ​​and a knob dial 6c. Rotating the knob dial 6c causes the wheel gear 6b ​​to rotate as a whole. The wheel gear 6b ​​is meshed with a rack gear section 3 located on the outer surface of the housing 2. By rotating the knob dial 6c while the fixing state is loosened, the meshing position with respect to the rack gear section 3 changes. This causes the base 5 and the base mounting section 6 to displace vertically as a whole, allowing for fine adjustment of the vertical position (machining depth) of the base 5 relative to the tip tool 15. Depth scales 4 indicating the machining depth are displayed on both sides of the rack gear section 3.

[0036] The base mounting section 6 shields the area around the workpiece, suppressing the scattering of dust and other particles generated during processing. A window 6d is provided at the lower front of the base mounting section 6 for the operator to view the workpiece. A hand tool such as a wrench can be inserted through the window 6d to attach and detach the end tool 15 to the motor shaft 11. An insertion relief section 5a is provided in the center of the base 5 for inserting the motor shaft 11 and the end tool 15. The insertion relief section 5a also exposes the workpiece upwards.

[0037] A battery mounting section 21 is provided on the upper surface of the bulging section 2A. One battery 7 is detachably mounted in the battery mounting section 21. In this specification, the front-to-back, left-to-right, and up-to-down directions of the battery 7 mounted in the battery mounting section 21 are the same as the directions for the portable processing machine 1 shown in each figure. The battery 7 has a rectangular parallelepiped shape with a long side 7L and a short side 7S. When the battery 7 is mounted, the long side 7L corresponds to the side along the front-to-back longitudinal direction, and the short side 7S corresponds to the side along the left-to-right width direction. Therefore, in the first embodiment, the long side 7L is longer than the short side 7S (long side 7L > short side 7S). The battery 7 has a side along the up-to-down height direction (thickness side 7D). In the first embodiment, the thickness side 7D is shorter than the short side 7S (short side 7S > thickness side 7D). It is also possible to mount a high-capacity battery where the thickness side 7D is larger than the short side 7S.

[0038] A slide-mount lithium-ion battery is used for battery 7. Battery 7 is mechanically and electrically mounted to the battery mounting section 21 by sliding it forward. As shown in Figure 5, the battery mounting section 21 is provided with a pair of left and right rail receiving sections 22. A pair of rail sections 7c are provided on the underside of battery 7. Figures 6-8 show the left rail section 7c. Battery 7 is mechanically mounted to the battery mounting section 21 by sliding battery 7 forward and engaging the pair of rail sections 7c with the rail receiving sections 22. A positive terminal 23 and a negative terminal 24 are provided between the left and right rail receiving sections 22. A control terminal 25 is provided between the positive terminal 23 and the negative terminal 24. Once battery 7 is mechanically mounted to the battery mounting section 21, the positive terminal 23, negative terminal 24, and control terminal 25 are electrically connected to the positive terminal receiving section, negative terminal receiving section, and control terminal receiving section of battery 7, respectively.

[0039] A lock recess 26 is provided at the rear of the battery mounting section 21, into which the locking claws (not visible in the figure) of the battery 7 engage. When the locking claws engage with the lock recess 26, the battery 7 is locked in place on the battery mounting section 21. As shown in Figures 6 and 8, a release button 7a is provided on the rear side of the underside of the battery 7. When the release button 7a is pushed upward with a fingertip, the locking claws disengage from the lock recess 26. This unlocks the battery 7. In this unlocked state, the battery 7 can be slid backward and removed from the battery mounting section 21. A remaining capacity indicator 7b is provided on the rear surface of the battery 7.

[0040] The bulge portion 2A has a rectangular box shape that is long from front to back and short from side to side. The longitudinal direction of the bulge portion 2A is aligned with the long side 7L of the battery 7. The long side 7L of the battery 7 coincides with the mounting and removal direction (sliding direction) to and from the battery mounting portion 21. The width direction of the bulge portion 2A is aligned with the short side 7S of the battery 7. As shown in Figures 2 and 4, the width of the bulge portion 2A is approximately equal to the width of the battery 7.

[0041] As shown in Figures 3 and 4, the internal space of the bulge 2A serves as the electrical component housing section 30. Therefore, like the bulge 2A, the electrical component housing section 30 is long in the front-to-back direction and short in the left-to-right width direction. The longitudinal direction of the electrical component housing section 30 (long side of the housing section 30L) aligns with the long side 7L of the battery 7. The short direction of the electrical component housing section 30 (short side of the housing section 30S) aligns with the short side 7S of the battery 7.

[0042] The upper part of the electrical component housing section 30 houses a controller 31, primarily for controlling the operation of the electric motor 10. The controller 31 has a rectangular flat plate shape and houses a control board in a rectangular shallow case. The mounting surface of the control board (the opening side of the case) is insulated with resin molding. The control board of the controller 31 is equipped with a control circuit consisting of a microcontroller that transmits control signals based on the rotor position information detected by the electric motor 10's sensor board. The control board is also equipped with a drive circuit consisting of an FET that switches the current of the electric motor 10 based on the control signals received from this control circuit. Furthermore, the control board is equipped with an auto-stop circuit that cuts off the power supply to the electric motor 10 to prevent over-discharge or overcurrent conditions depending on the detection result of the battery 7's state.

[0043] As shown in Figures 3, 4, 6-8, the controller 31 is housed with the mounting surface of the control board facing downwards. As a result, electrical components such as capacitors 31a, lead wires 31b, and connectors 31c mounted on the control board protrude downwards from the case. In particular, as shown in Figure 8, lead wires 31b, such as three power lines, connected to the controller 31 are routed in a loop shape downwards and in the front-to-back direction. Various electrical components such as the speed control unit 33, wireless communication unit 34, and internal support member 35, which will be described below, are housed along a path that penetrates the space between the loop-shaped lead wires 31b and the controller 31 from left to right. Capacitors 31a have, for example, a cylindrical shape. Capacitors 31a are mounted on the control board with their longitudinal direction aligned with the lower surface of the controller 31. Capacitors 31a extend along their longitudinal direction from left to right at a front position of the electrical component housing section 30 (behind the start switch 32).

[0044] Details of the electrical component housing 30 are shown in Figures 3 and 4. The electrical component housing 30 houses a start switch 32 for starting and stopping operations, a gear shift operation unit 33 for gear shifting operations, and a wireless communication unit 34 for wireless communication. The start switch 32, which corresponds to the third electrical component, is housed in the front of the electrical component housing 30. The gear shift operation unit 33 is housed on the right side of the electrical component housing 30. The wireless communication unit 34 is housed on the left side of the electrical component housing 30.

[0045] The start switch 32, the gear shift operation unit 33, and the wireless communication unit 34 are housed below the controller 31 and above the electric motor 10. The start switch 32, the gear shift operation unit 33, and the wireless communication unit 34 are housed at approximately the same height along a virtual plane S perpendicular to the motor axis J.

[0046] The start switch 32 is held in a long, oval-shaped first frame 2Aa located on the front of the bulging portion 2A. The start switch 32 corresponds to the third electrical component. The start switch 32 has an operating section 32a and a circuit board section 32e. The operating section 32a is exposed on the front of the bulging portion 2A. The operating section 32a has a start button 32b and a standby button 32c. When the battery 7 is attached to the battery mounting section 21 and the start button 32b is pressed, the electric motor 10 starts and the tip tool 15 rotates around the motor axis J. When the start button 32b is pressed while the motor is running, the electric motor 10 stops. When the standby button 32c is turned ON, the motor is locked off. When the motor is locked off, the electric motor 10 will not start even if the start button 32b is pressed. This prevents accidental starting. When the standby button 32c is pressed while the motor is locked off, the lock-off state is released. The electric motor 10 is activated by pressing the start button 32b while the lock-off is released.

[0047] As shown in Figures 3 and 8, the circuit board 32e is held behind the operating unit 32a. Each operation signal from the start switch 32 is input to the controller 31 via the circuit board 32e. This allows for operation control of the electric motor 10, such as starting and stopping.

[0048] The speed control unit 33 corresponds to the first electrical component. As shown in Figures 4, 6, and 7, the speed control unit 33 has an operating part 33a that is rotated when changing the rotational speed of the electric motor 10. The operating part 33a is rotatably supported on the base part 33b. The operating part 33a has a disc shape. The operating part 33a is rotatably supported around its vertical axis. The speed control unit 33 is held in a second frame part 2Ab provided on the right side of the bulge part 2A (right bulge part 2RA). The second frame part 2Ab has a rectangular frame shape that protrudes to the left from the inside of the right bulge part 2RA. The right side of the operating part 33a is exposed to the outside through a window part 2Ac of the second frame part 2Ab. The user can rotate the operating part 33a in the front-back direction by placing their fingertip on the part exposed through the window part 2Ac. The amount of rotational operation performed by the control unit 33a is input to the controller 31 via the base unit 33b. This controls the rotational speed of the electric motor 10.

[0049] As shown in Figures 4, 6, 7, and 9, a wireless communication unit 34 is housed in the left side of the electrical component housing 30. The wireless communication unit 34 has a wireless communication adapter 34a, an adapter receiving portion 34b to which the wireless communication adapter 34a is connected, and a resin cap 34c. The wireless communication adapter 34a transmits radio waves indicating the start / stop state of the electric motor 10. The wireless communication adapter 34a corresponds to the second electrical component. The adapter receiving portion 34b is held in the back of a third frame portion 2Ad provided on the left side of the bulge portion 2A (left bulge portion 2LA). The third frame portion 2Ad has a rectangular frame shape that protrudes from the inside of the left bulge portion 2LA toward the right. The third frame portion 2Ad opens outward through an opening 2Ae. The wireless communication adapter 34a is inserted into the adapter receiving portion 34b and mechanically coupled, and electrically connected. The wireless communication adapter 34a is detachably attached to the adapter receiving portion 34b.

[0050] The wireless communication adapter 34a is removed by pulling it out of the adapter receiving portion 34b. The wireless communication adapter 34a removed from the adapter receiving portion 34b can be removed from the third frame portion 2Ad through the opening 2Ae. The removed wireless communication adapter 34a can be attached to the adapter receiving portion 34b by pushing it into the third frame portion 2Ad through the opening 2Ae.

[0051] The opening 2Ae of the third frame portion 2Ad is closed by the cap 34c. The cap 34c is pressed into the opening 2Ae with little force and held in the closed position. The closed cap 34c is held almost flush with the outer surface of the bulge portion 2A and forms part of the side wall portion of the bulge portion 2A.

[0052] As shown in Figure 9, the cap 34c is integrally provided with a retaining arm portion 34d and an engaging arm portion 34e. The retaining arm portion 34d extends from the rear end of the cap 34c toward the back of the third frame portion 2Ad. An engaging projection 34g is integrally provided at the tip of the retaining arm portion 34d. The engaging projection 34g is engaged with the inner wall portion of the third frame portion 2Ad so as to be displaceable from side to side. This allows the cap 34c to move toward and away from the opening 2Ae, while preventing the cap 34c from falling off the third frame portion 2Ad. By elastically deforming the engaging projection 34g and disengaging it from the third frame portion 2Ad, the cap 34c can be separated from the third frame portion 2Ad. Figure 9 shows the separated state (disassembled state) of the cap 34c.

[0053] An engaging arm portion 34e is integrally provided near the center of the inner surface of the cap 34c. The engaging arm portion 34e protrudes inward from the third frame portion 2Ad. The protruding tip of the engaging arm portion 34e is curved in a hook shape. The hook-shaped tip of the engaging arm portion 34e is hooked onto an engaging portion 34f provided on the side of the wireless communication adapter 34a. The wireless communication adapter 34a is attached to the adapter receiving portion 34b with the engaging arm portion 34e of the cap 34c hooked onto the engaging portion 34f. As a result, after pulling the cap 34c to open the opening 2Ae, the wireless communication adapter 34a is pulled out and removed together by moving it away from the opening 2Ae. The wireless communication adapter 34a pulled out by the cap 34c is separated from the cap 34c. The removed wireless communication adapter 34a can be used in other devices. The cap 34c can be closed over the empty third frame 2Ad from which the wireless communication adapter 34a has been removed.

[0054] As shown in Figures 4, 6-8, the gear shift operation unit 33 and the wireless communication unit 34 are positioned relative to each other via an internal support member 35. The internal support member 35 is a one-piece molded part made of resin, and has a rectangular parallelepiped shape that is long from left to right and is generally close to a flat plate. A rectangular frame-shaped first wall portion 35a is integrally provided on the right side (first side) of the internal support member 35, having walls on all four sides (front, back, top, and bottom). The first wall portion 35a extends to the right. The first wall portion 35a is open to the right. A rectangular frame-shaped second wall portion 35b is integrally provided on the left side (second side) of the internal support member 35, similarly having walls on all four sides (front, back, top, and bottom). The second wall portion 35b extends to the left. The second wall portion 35b is open to the left. The second wall portion 35b has a rectangular frame shape that is slightly larger than that of the first wall portion 35a. Therefore, there is a stepped portion 35c between the first wall portion 35a and the second wall portion 35b. The second wall portion 35b is formed in a deeper concave shape than the first wall portion 35a.

[0055] The base portion 33b of the gear shift operation unit 33 is connected to the inside of the first wall portion 35a on the right side of the internal support member 35 (first positioning portion). The first wall portion 35a functions as a surrounding portion that holds the gear shift operation unit 33. In this state, the first wall portion 35a is elastically inserted into the inside of the second frame portion 2Ab and held in position. This positions and holds the internal support member 35 relative to the second frame portion 2Ab.

[0056] The adapter receiving portion 34b of the wireless communication unit 34 is inserted into and held in the second wall portion 35b on the left side of the internal support member 35 (second positioning portion). The second wall portion 35b functions as a surrounding portion in which the wireless communication adapter 34a of the wireless communication unit 34 is detachably held via the adapter receiving portion 34b. As shown in Figure 4, the adapter receiving portion 34b is also inserted into the inner circumference side of the third frame portion 2Ad. Therefore, the adapter receiving portion 34b is held across both the inner circumference side of the second wall portion 35b of the internal support member 35 and the inner circumference side of the third frame portion 2Ad. This positions and holds the internal support member 35 relative to the third frame portion 2Ad via the adapter receiving portion 34b.

[0057] The internal support member 35 simplifies the assembly process of the gear shift operation unit 33, the wireless communication unit 34, and various other electrical components to the electrical component housing 30. For example, the gear shift operation unit 33 and the first wall portion 35a of the internal support member 35 are assembled to the second frame portion 2Ab of the right half portion 2R, and the wireless communication unit 34 is assembled to the third frame portion 2Ad of the left half portion 2L. Then, the adapter receiving portion 34b is inserted into the second wall portion 35b of the internal support member 35, while the right half portion 2R and the left half portion 2L are brought together. With the five components—the right half portion 2R, the gear shift operation unit 33, the internal support member 35, the wireless communication unit 34, and the left half portion 2L—assembled in this way, the right half portion 2R and the left half portion 2L are screw-connected to each other, completing the assembly of this section. Upon assembly, the gear shift operation unit 33 and the wireless communication unit 34 are positioned side by side along a common virtual plane S perpendicular to the motor axis J, via an internal support member 35.

[0058] The left-right length dimensions of the first wall portion 35a on the right side and the second wall portion 35b on the left side of the internal support member 35 are appropriately set. As shown in Figure 4, when the electrical component housing 30 is assembled, a small gap V1 is provided between the stepped portion 35c of the internal support member 35 and the left end of the second frame portion 2Ab. Also, when the electrical component housing 30 is assembled, a small gap V2 is provided between the left end of the second wall portion 35b of the internal support member 35 and the right end of the third frame portion 2Ad.

[0059] In this assembled state, the length dimension of the second wall portion 35b of the internal support member 35 is appropriately set in the left-right direction relative to the distance between the left end of the second frame portion 2Ab and the right end of the third frame portion 2Ad, such that a gap V1 or V2 is created. By setting the dimensions of each part so that a gap V1 or V2 is created, the gear shift operation unit 33 and the wireless communication unit 34 can be assembled without excessive external force being applied in the left-right direction.

[0060] According to the first embodiment described above, a rectangular parallelepiped battery 7 having a long side 7L and a short side 7S is mounted in the battery mounting section 21. The battery 7 is mounted with the long side 7L aligned in the front-to-back direction and the short side 7S aligned in the left-to-right direction. This allows the battery 7 to be mounted compactly in the left-to-right direction. The electrical component housing section 30 has a housing long side 30L that is aligned with the long side 7L of the battery 7, and a housing short side 30S that is aligned with the short side 7S of the battery 7. The gear shift operation unit 33, which corresponds to the first electrical component, and the wireless communication unit 34, which corresponds to the second electrical component, are arranged side by side along the housing short side 30S. This ensures that space is available in front of or behind the gear shift operation unit 33 and the wireless communication unit 34 for arranging other electrical components, such as lead wires 31b and connectors 31c.

[0061] In the first embodiment illustrated, the operating portion 33a of the gear shift operating unit 33 protrudes outward through the window portion 2Ac provided in the bulging portion 2A. This ensures the compactness of the gear shift operating unit 33 while maintaining the rotatability of the operating portion 33a.

[0062] According to the first embodiment illustrated, the wireless communication adapter 34a is detachably housed in the electrical component housing 30 through an opening 2Ae provided in the bulging portion 2A. A cap 34c is detachably provided in the bulging portion 2A to close the opening 2Ae and form a part of the side wall of the bulging portion 2A. The formation of a part of the side wall of the bulging portion 2A by the cap 34c ensures compactness around the opening 2Ae.

[0063] According to the first embodiment illustrated, the gear shift operation unit 33 and the wireless communication unit 34 are arranged side by side along the direction (left-right direction) in which the wireless communication adapter 34a is attached to and detached from the electrical component housing 30. This ensures that the operation of attaching and detaching the wireless communication adapter 34a is not hindered by the presence of other electrical components such as the lead wires 31b of the controller 31.

[0064] In the illustrated first embodiment, the gear shift operation unit 33 and the wireless communication unit 34 are positioned relative to each other via an internal support member 35. Therefore, the gear shift operation unit 33 and the wireless communication unit 34 are compactly positioned within the electrical component housing 30.

[0065] According to the first embodiment illustrated, the internal support member 35 has a first positioning portion on the right side (first side) for positioning the gear shift operation unit 33, and a second positioning portion on the left side (second side) for positioning the wireless communication unit 34. As a result, the gear shift operation unit 33 and the wireless communication unit 34 are positioned relative to each other along the longitudinal direction of the internal support member 35.

[0066] Furthermore, the internal support member 35 has a second wall portion 35b (enclosing portion) as a second positioning portion. The wireless communication adapter 34a is detachably inserted into the second wall portion 35b (enclosing portion) via the adapter receiving portion 34b. This ensures good assembly of the wireless communication unit 34 to the electrical component housing portion 30. It also ensures good assembly of the adapter receiving portion 34b to the internal support member 35.

[0067] In the first embodiment illustrated, the controller 31 is positioned with the side where the circuit components are mounted facing downward toward the electrical component housing 30. Therefore, circuit components such as the capacitor 31a, lead wires 31b, and connector 31c are compactly arranged relative to the speed shift operation unit 33 and the wireless communication unit 34.

[0068] In the first embodiment illustrated, a window 6d for visualizing the processing area is provided on the front surface of the base mounting portion 6 coupled to the housing 2. Facing the front window 6d, the gear shift operation unit 33 is positioned on the right side of the bulge portion 2A (right bulge portion 2RA), and the wireless communication unit 34 is positioned on the left side (left bulge portion 2LA). This ensures good operability of the gear shift operation unit 33 and the wireless communication unit 34.

[0069] In the first embodiment illustrated, the start switch 32 is positioned on the front surface of the bulge 2A. The speed control unit 33, the wireless communication unit 34, and the start switch 32 are arranged side by side on a virtual plane S perpendicular to the motor axis J. As a result, the speed control unit 33, the wireless communication unit 34, and the start switch 32 are arranged compactly in the electrical component housing 30, especially in the height direction.

[0070] According to the first embodiment illustrated, the rotational speed of the electric motor 10 can be changed by the speed control unit 33 to match the machining method, enabling efficient and high-quality machining work. Furthermore, the wireless communication unit 34 allows the starting and stopping of the portable machining center 1 to be linked to external devices such as a dust collector. This improves the operability and workability of the portable machining center 1. The wireless communication adapter 34a can be removed and reused as a wireless communication adapter in other devices.

[0071] Various modifications can be made to the first embodiment described above. For example, although the example given shows that the battery 7 is attached to and removed from the battery mounting portion 21 in the front-to-back direction (sliding direction), it may also be configured to be attached and removed by sliding in the left-to-right direction. Also, although the example given shows that the battery 7 is attached and removed by sliding in the direction of the long side 7L, it may also be configured to be attached and removed by sliding in the direction of the short side 7S.

[0072] The first electrical component is shown as a gear shift operation unit 33, the second as a wireless communication unit 34, and the third as a start switch 32, but these may be changed to other electrical components. The example shows the gear shift operation unit 33 on the right side and the wireless communication unit 34 on the left side, but they may be arranged on opposite sides.

[0073] Although an example configuration was given in which the window portion 6d for visualizing the processing area is the front, and the speed shift operation unit 33 and the wireless communication unit 34 are arranged on opposite sides of each other, the front can be restricted based on other members or configurations. Therefore, the speed shift operation unit 33 and the wireless communication unit 34 may also be arranged on the front and rear surfaces. The speed shift operation unit 33 (first electrical component) and the wireless communication adapter 34a (second electrical component) are housed at the same height along a common virtual plane S and arranged on opposite sides of the bulging portion 2A to obtain equivalent effects.

[0074] Although the example shows the activation switch 32 located on the front of the bulging portion 2A, it may also be positioned on the top or rear surface of the bulging portion 2A. Furthermore, the activation switch 32 may be positioned at a height that is outside the virtual plane S.

[0075] Although the example shows that both the first wall portion 35a (first end) and the second wall portion 35b (second end) of the internal support member 35 are formed in a rectangular frame shape (enclosing portion), only one of them may be formed in a frame shape. Therefore, the enclosing portion of the second wall portion 35b may be provided in other shapes.

[0076] The shapes of the first wall portion 35a and the second wall portion 35b may be replaced with, for example, insertable protrusions instead of the exemplified rectangular frame shape. The first and / or second ends of the internal support member 35 may be inserted into positioning holes provided on the first and / or second electrical component side to position the two electrical components relative to each other. The internal support member 35 may be omitted.

[0077] While the example of portable processing machine 1 is a trimmer, which is often held and moved with one hand and used for relatively light cutting operations, the illustrated arrangement of electrical components can also be applied to routers, which are used for relatively heavy cutting operations and are held and moved with both hands. Furthermore, it can be similarly applied to portable processing machines that do not have a base 5 and a base mounting part 6 that come into contact with the workpiece W. In addition, the tip tool 15 may be a cutting tool, or for example, a disc-shaped mop (pad) or sanding disc (grinding wheel). Therefore, this disclosure can also be applied to so-called polishers and sanders.

[0078] The portable processing machine 1 of the first embodiment is an example of a portable processing machine in one aspect of the present disclosure. The cylindrical portion 2B and bulging portion 2A of the first embodiment are an example of a housing in one aspect of the present disclosure. The electric motor 10 of the first embodiment is an example of an electric motor in one aspect of the present disclosure. The motor shaft 11 of the first embodiment is an example of a motor shaft in one aspect of the present disclosure. The cutting tool 15 of the first embodiment is an example of a cutting tool in one aspect of the present disclosure.

[0079] The controller 31 of the first embodiment is an example of a controller in one aspect of the present disclosure. The electrical component housing 30 of the first embodiment is an example of an electrical component housing in one aspect of the present disclosure. The gear shift operation unit 33 of the first embodiment is an example of a first electrical component in one aspect of the present disclosure. The wireless communication adapter 34a of the first embodiment is an example of a second electrical component in one aspect of the present disclosure. The virtual plane S of the first embodiment is an example of an identical plane in one aspect of the present disclosure.

[0080] The portable processing machine 1 of the first embodiment is an example of a portable processing machine in other aspects of the present disclosure. The cylindrical portion 2B and bulging portion 2A of the first embodiment are an example of a housing in other aspects of the present disclosure. The electric motor 10 of the first embodiment is an example of an electric motor in other aspects of the present disclosure. The motor shaft 11 of the first embodiment is an example of a motor shaft in other aspects of the present disclosure. The base 5 of the first embodiment is an example of a contact portion in other aspects of the present disclosure. The workpiece W of the first embodiment is an example of a contact portion in other aspects of the present disclosure. The battery 7 of the first embodiment corresponds to an example of a battery in other aspects of the present disclosure. The tip tool 15 of the first embodiment is an example of a tip tool in other aspects of the present disclosure.

[0081] The controller 31 of the first embodiment is an example of a controller in other aspects of the present disclosure. The wireless communication adapter 34a of the first embodiment is an example of a wireless communication adapter in other aspects of the present disclosure. The dust collector of the first embodiment is an example of an external device in other aspects of the present disclosure.

[0082] Figures 10 to 13 show a portable cutting machine 50 according to a second embodiment of the present disclosure, which is a portable cutting machine for stonemasons, also known as a double-row grooving cutter or wall chaser. The portable cutting machine 50 can perform double-row grooving simultaneously. The portable cutting machine 50 has a rectangular flat base 51 that contacts the workpiece W and a machine body 60 supported on the upper side of the base 51. The workpiece W is mainly a wall made of concrete or stone.

[0083] A fixed cover 52 is supported on the upper surface of the base 51. The machine body 60 is supported at the rear of the fixed cover 52 via a main support shaft 53 so as to be able to swing up and down. The machine body 60 has a semi-cylindrical movable cover 61. The rear of the movable cover 61 is connected to the rear of the fixed cover 52 via the main support shaft 53.

[0084] The fixed cover 52 is housed inside the movable cover 61 in a state where it can move forward and backward relative to it. The movable cover 61 is spring-biased in a direction away from the base 51 (upward). As shown in Figure 11, the groove cutting is performed when the movable cover 61 is pushed down by the user against the spring biasing force.

[0085] A dust collection duct 62 is provided at the rear of the movable cover 61. A dust collector 64 can be connected to the dust collection duct 62 via a hose 63. Cutting dust generated by the grooving process is efficiently collected by the dust collector 64. A dust bag (not shown) can also be connected to the dust collection duct 62 instead of the dust collector 64.

[0086] A drive unit 70 is connected to the right side of the movable cover 61. As shown in Figures 14, 15, and 16, the drive unit 70 has an electric motor 71, a reduction gear unit 72, and an output shaft 73. The electric motor 71 is housed in a motor housing 71a. The reduction gear unit 72 is housed in a gear housing 72a. The rotational output of the electric motor 71 is output to the output shaft 73 via the reduction gear unit 72. The output shaft 73 is supported so as to be rotatable around an output axis P that is perpendicular to the axis of the motor shaft 71b (motor axis J).

[0087] The output shaft 73 protrudes into the movable cover 61. Inside the movable cover 61, two circular cutting tools 74 (tip tools) are coaxially mounted on the output shaft 73. The two cutting tools 74 have the same diameter. For example, diamond wheels are used for the two cutting tools 74. The distance between the two cutting tools 74 can be arbitrarily set by changing the number and size of spacers 75. The two cutting tools 74 are fixed to the output shaft 73 by tightening the fixing nuts 76.

[0088] As shown in Figures 11, 12, and 15, when the user pushes down the movable cover 61, the lower sides of the two cutting tools 74 are exposed to the underside of the base 51. The exposed portions cut into the workpiece W. With the cutting tools 74 in this cut state, the portable processing machine 50 is moved, for example, backward (to the left in Figure 12) along the surface direction of the workpiece W, to perform two rows of grooving.

[0089] A gate-shaped front handle 65 is supported at the front of the movable cover 61. The front handle 65 extends in the left-right direction. The front handle 65 can be moved parallel to the front-back direction to adjust its position for use. The user can grasp the front handle 65 with, for example, their left hand and push down the movable cover 61.

[0090] A cylindrical main housing 81 is attached to the rear of the motor housing 71a. The main housing 81 has a split structure that allows it to be divided into two halves, left and right. The left half-part 81L and the right half-part 81R are joined together to form the main housing 81.

[0091] A battery mounting section 82 is provided at the top of the main housing 81. One battery 83 is detachably mounted in the battery mounting section 82. Power from the mounted battery 83 is supplied as the power source for the electric motor 71. A slide-mount type lithium-ion battery is used for the battery 83. The battery 83 has a rectangular parallelepiped shape with a long side 83L, a short side 83S, and a thickness side 83D. The battery 83 is mounted in the same orientation as in the first embodiment, with the short side 83S perpendicular to the motor axis J. The battery 83 can be removed from the battery mounting section 82 and charged with a separately prepared charger for repeated use.

[0092] A loop-shaped rear handle 66 is supported at the rear of the main housing 81. A switch lever 67 is provided on the inner circumference of the rear handle 66. When the switch lever 67 is pulled with the fingertips of the hand gripping the rear handle 66, the electric motor 71 is activated and the two cutting tools 74 rotate. The rear handle 66 is positioned so as to be changeable around an axis parallel to the motor axis J.

[0093] The user can move the portable processing machine 50 by, for example, gripping the rear handle 66 with their right hand and the front handle 65 with their left hand. An arrow 77 indicating the rotation direction of the cutting tools 74 is displayed on the left side of the movable cover 61. The two cutting tools 74 rotate counterclockwise toward the left side of the movable cover 61. Grooving is performed by moving the portable processing machine 50 to the right (rear) from the user's perspective while rotating the two cutting tools 74 in the direction of the arrow 77. In the second embodiment, the direction in which the grooving is performed (towards the user) is defined as rear. The left and right directions are based on the user facing forward at the rear of the portable processing machine 50. Note that there are also double-row grooving cutters (wall chasers) in which the direction of rotation of the cutting tools is reversed and the processing is performed by moving in a direction away from the user (forward). In that case as well, the user's side is defined as rear.

[0094] As shown in Figures 14-18, an electrical component housing section 80 is provided inside the main housing 81. The electrical component housing section 80 is located below the battery mounting section 82. The electrical component housing section 80 has a housing length 80L parallel to the long side 83L of the battery 83 mounted on the battery mounting section 82, and a housing short side 80S parallel to the short side 83S of the battery 83. The housing length 80L is aligned in the front-to-back direction (motor axis J direction). The housing short side 80S is aligned in the left-to-right direction. The electrical component housing section 80 is generally long in the front-to-back direction along the longitudinal direction of the battery 83 (long side 83L direction), and shorter in the left-to-right direction.

[0095] The electrical component housing section 80 houses a rectangular flat-plate-shaped controller 85, a first electrical component, and a second electrical component. The controller 85 has a configuration in which a control board is housed in a shallow case and insulated by resin molding. The controller 85 is housed with its surface direction aligned with the short side 80S of the housing section. The controller 85 is housed in the electrical component housing section 80 with the mounting surface of the control board facing forward. Although omitted in the figure, multiple lead wires are drawn out from the mounting surface of the control board, similar to the first embodiment. Electrical components such as lead wires and connectors are routed within the electrical component housing section 80. The operation of the electric motor 71 is controlled by the controller 85.

[0096] As shown in Figures 17 and 18, the controller 85 is held in the electrical component housing 80 by being sandwiched between upper and lower retaining frames 85a and 85b provided inside the main housing 81. The controller 85 is assembled in the electrical component housing 80 in a left-right position by the mutual connection of the left half portion 81L and the right half portion 81R of the main housing 81.

[0097] A first electrical component and a second electrical component are housed in front of the controller 85. The first electrical component is, for example, a cylindrical capacitor 86, and the second electrical component is, for example, a wireless communication unit 84 for wireless communication. Although not shown in the diagram, the capacitor 86 is connected to the control board of the controller 85 by lead wires. The capacitor 86 is housed in a position that extends vertically along the left side of the controller 85.

[0098] The wireless communication unit 84 comprises a wireless communication adapter 87, an adapter receiving section 88, and a cap 89. The wireless communication adapter 87 transmits signals to other external devices (dust collector 64) indicating the start / stop status of the electric motor 71 or the operating status of the switch lever 67. Note that Figure 16 shows the wireless communication adapter 87 in a detached state.

[0099] As shown in Figure 16, the wireless communication adapter 87 is housed in the electrical component housing 80 via an adapter mounting opening 81c provided on the right side (right half portion 81R) of the main housing 81. The wireless communication adapter 87 is inserted into and mounted in an adapter receiving portion 88 positioned in the electrical component housing 80. The adapter mounting opening 81c is closed by a resin cap 89.

[0100] A rectangular frame-shaped retaining frame portion 81d is integrally provided along the adapter mounting opening 81c. The retaining frame portion 81d extends inward from the right half portion 81R. The right portion (mounting opening side) of the adapter receiving portion 88 is inserted into the retaining frame portion 81d. This restricts the displacement of the adapter receiving portion 88 to the right (adapter removal direction). The wireless communication adapter 87 is inserted into the adapter receiving portion 88 and mechanically coupled, and also electrically connected. The wireless communication adapter 87 is detachably mounted on the adapter receiving portion 88.

[0101] The wireless communication adapter 87 is removed by pulling it out of the adapter receiving portion 88. The wireless communication adapter 87 removed from the adapter receiving portion 88 can be removed from the retaining frame portion 81d via the adapter mounting opening 81c. The removed wireless communication adapter 87 can be attached to the adapter receiving portion 88 by pushing it into the retaining frame portion 81d via the adapter mounting opening 81c.

[0102] The cap 89 is pushed into the adapter mounting port 81c with a small force and held in a closed position. The closed cap 89 is held almost flush with the outer surface of the main housing 81 and forms part of the side wall of the main housing 81.

[0103] As shown in Figures 17 and 18, the cap 89 is integrally provided with one retaining arm portion 89a, two engaging arm portions 89b, and one engaging claw portion 89c. The retaining arm portion 89a extends long from the lower end of the cap 89 toward the back of the retaining frame portion 81d. An engaging projection 89d is integrally provided at the tip of the retaining arm portion 89a. The engaging projection 89d is engaged with the inner wall surface of the retaining frame portion 81d so as to be displaceable from side to side. This allows the cap 89 to move toward and away from the adapter mounting opening 81c, while preventing the cap 89 from falling off the retaining frame portion 81d. By elastically deforming the engaging projection 89d and disengaging it from the retaining frame portion 81d, the cap 89 can be separated from the retaining frame portion 81d.

[0104] Two engaging arm portions 89b are integrally provided on the inner surface of the cap 89. The engaging arm portions 89b protrude inward from the retaining frame portion 81d. The protruding tips of the engaging arm portions 89b are curved in a hook shape. The hook-shaped tips of the engaging arm portions 89b are hooked onto engaging portions 87a provided on both the front and rear sides of the wireless communication adapter 87. The wireless communication adapter 87 is mounted on the adapter receiving portion 88 with the engaging arm portions 89b of the cap 89 hooked onto the engaging portions 87a. As a result, after pulling the cap 89 to open the adapter mounting opening 81c, the wireless communication adapter 87 is pulled out and removed by moving the cap 89 away from the adapter mounting opening 81c. The wireless communication adapter 87 pulled out by the cap 89 is separated from the cap 89. The removed wireless communication adapter 87 can be used in other devices. As shown in Figure 16, the cap 89 can be closed over the empty retaining frame portion 81d from which the wireless communication adapter 87 has been removed. The cap 89 is held in the closed position when the engaging claw portion 89c engages with the recess 81g of the retaining frame portion 81d.

[0105] The capacitor 86, as the first electrical component, and the wireless communication adapter 87, as the second electrical component, are positioned relative to each other by a single internal support member 90. The internal support member 90 has a rectangular frame-shaped surrounding portion 90a and a flat plate-shaped retaining frame portion 90b. The internal support member 90 is a molded resin part, and the surrounding portion 90a and the retaining frame portion 90b are integrally formed. The retaining frame portion 90b extends vertically. The surrounding portion 90a is provided at the lower part of the right side (second side) of the retaining frame portion 90b.

[0106] The surrounding portion 90a extends to the right and opens to the right. The adapter receiving portion 88 is inserted into and held in the opening 90c of the surrounding portion 90a. As shown in Figure 18, a groove-shaped relief portion 90f is provided at the lower part of the surrounding portion 90a. With the adapter receiving portion 88 inserted into the surrounding portion 90a, the relief portion 90f opens to the right (towards the adapter mounting port 81c). The retaining arm portion 89a of the cap 89 is inserted into the relief portion 90f. With the retaining arm portion 89a inserted into the relief portion 90f, the engaging projection 89d engages with the inner wall surface of the retaining frame portion 81d. The relief portion 90f ensures good assembly of the cap 89 to the retaining frame portion 81d.

[0107] Two retaining wall portions 90d are integrally provided on the left side of the retaining frame portion 90b. The two retaining wall portions 90d protrude to the left parallel to each other. An arc-shaped retaining portion 90e is provided at the left end of the two retaining wall portions 90d. The arc-shaped retaining portion 90e abuts against the capacitor 86. This holds the capacitor 86 along the retaining frame portion 90b.

[0108] The retaining frame portion 90b corresponds to a first positioning portion that positions the capacitor 86 as a first electrical component. The surrounding portion 90a corresponds to a second positioning portion that positions the wireless communication adapter 87 as a second electrical component. The internal support member 90 has a first positioning portion on the left side (first side) for positioning the capacitor 86, and a second positioning portion on the right side (second side) for positioning the wireless communication adapter 87.

[0109] As shown in Figures 16 and 18, a rectangular frame-shaped retaining frame portion 81e is integrally provided on the inner surface of the left half portion 81L of the main housing 81. The retaining frame portion 81e is provided opposite to the retaining frame portion 81d of the right half portion 81R. An arc-shaped pressing portion 81f is provided on the retaining frame portion 81e. The capacitor 86 is in contact with the pressing portion 81f. As a result, the capacitor 86 is held in a state where it is sandwiched from both the left and right sides by the pressing portion 90e of the internal support member 90 and the pressing portion 81f of the retaining frame portion 81e, as shown in Figure 16.

[0110] As shown in Figure 16, the internal support member 90 is positioned and held in the main housing 81 by being sandwiched from both sides by the retaining frame portion 81d of the right half portion 81R and the retaining frame portion 81e of the left half portion 81L of the main housing 81. The internal support member 90 is held in place by the left and right half portions 81L and 81R of the main housing 81, thereby positioning the capacitor 86 and the wireless communication unit 84 (wireless communication adapter 87) in the electrical component housing 80. The capacitor 86 and the wireless communication unit 84 are positioned side by side along the attachment / detachment direction (left-right direction) of the wireless communication adapter 87 to and from the electrical component housing 80.

[0111] The three components, the capacitor 86, the wireless communication unit 84, and the internal support member 90, are arranged in a straight line on a common virtual plane S perpendicular to the motor axis J (along the short side 80S of the electrical component housing 80). Furthermore, the internal support member 90 simplifies the assembly process of the capacitor 86 and the wireless communication unit 84 into the electrical component housing 80.

[0112] According to the second embodiment, a rectangular parallelepiped-shaped battery 83 having a long side 83L and a short side 83S is mounted in the battery mounting section 82. The battery 83 is mounted with the long side 83L aligned in the front-to-back direction and the short side 83S aligned in the left-to-right direction. This allows the battery 83 to be mounted compactly in the left-to-right direction. The electrical component housing section 80 has a housing long side 80L that is aligned with the long side 83L of the battery 83 and a housing short side 80S that is aligned with the short side 83S of the battery 83. A capacitor 86 corresponding to the first electrical component and a wireless communication adapter 87 corresponding to the second electrical component are housed side by side along the housing short side 80S. This ensures that space is available in front of the capacitor 86 and wireless communication adapter 87 or behind the controller 85 for arranging other electrical components, such as lead wires and connectors.

[0113] According to the second embodiment illustrated, the wireless communication adapter 87 is detachably housed in the electrical component housing 80 via the adapter mounting port 81c. A cap 89, which forms part of the outer shell of the main housing 81, is detachably provided at the adapter mounting port 81c. The cap 89 forms part of the outer casing of the main housing 81, thereby ensuring compactness around the adapter mounting port 81c.

[0114] In the second embodiment illustrated, the capacitor 86 and the wireless communication unit 84 are arranged side by side along the direction of attachment / detachment (left-right direction) to the electrical component housing 80 of the wireless communication adapter 87. This ensures that the operation of attaching and detaching the wireless communication adapter 87 is not hindered by the presence of other electrical components such as the capacitor 86 and the internal support member 90.

[0115] In the second embodiment illustrated, the capacitor 86 and the wireless communication unit 84 are positioned relative to each other via the internal support member 90. Therefore, the capacitor 86 and the wireless communication unit 84 are compactly positioned within the electrical component housing 80.

[0116] According to the second embodiment illustrated, the internal support member 90 has a first positioning portion on the left side (first side) for positioning the capacitor 86, and a second positioning portion on the right side (second side) for positioning the wireless communication unit 84. As a result, the capacitor 86 and the wireless communication unit 84 are positioned side by side in the left-right direction via the internal support member 90.

[0117] Furthermore, the internal support member 90 has a surrounding portion 90a as a second positioning portion. The wireless communication adapter 87 is detachably inserted into the surrounding portion 90a via the adapter receiving portion 88. This ensures good assembly of the wireless communication unit 84 to the electrical component housing portion 80. It also ensures good assembly of the adapter receiving portion 88 to the internal support member 90.

[0118] According to the second embodiment illustrated, the controller 85 is positioned towards the rear of the electrical component housing 80, with the mounting surface of the control board facing forward (towards the electric motor 71). Therefore, electrical components such as lead wires and connectors are efficiently arranged relative to the capacitor 86, wireless communication unit 84, and internal support member 90.

[0119] Further modifications can be made to the second embodiment. For example, although the example given illustrates that the battery 83 is attached to and removed from the battery mounting portion 82 in the front-to-back direction (sliding direction), it may also be configured to be attached and removed by sliding it in the left-to-right direction. Also, although the example given illustrates that the battery 83 is attached and removed by sliding it in the direction of the long side 83L, it may also be configured to be attached and removed by sliding it in the direction of the short side 83S. It may also be a built-in battery that can be charged while attached.

[0120] Although a capacitor 86 is given as an example of the first electrical component and a wireless communication unit 84 as an example of the second electrical component, these may be changed to other electrical components. Although a configuration in which the capacitor 86 is positioned on the left side and the wireless communication unit 84 is positioned on the right side with respect to the internal support member 90 is given as an example, they may be positioned on opposite sides.

[0121] In the second embodiment, a double-row groove cutter was exemplified as the portable processing machine 50, but the electrical component housing section 80 and internal support member 90 exemplified for a portable circular saw equipped with a single circular cutting tool can also be applied.

[0122] In the first and second embodiments, a configuration was shown in which the extending direction of the long sides 7L and 83L of the batteries 7 and 83 coincides with the extending direction of the long sides 30L and 80L of the electrical component housings 30 and 80. However, a configuration in which the longitudinal direction of the electrical component housing coincides with the extending direction of the short sides 7S and 83S of the batteries 7 and 83 is also possible.

[0123] In the first and second embodiments, a portable processing machine 1.50 equipped with a rechargeable battery 7, 83 as a power source was exemplified. However, the illustrated electrical component housings 30, 80 and internal support members 35, 90 can also be applied to portable processing machines using AC power supplied by commercial 100V.

[0124] In the first and second embodiments, examples of portable processing machines were given, such as a trimmer as a portable woodworking cutting machine for edging and grooving wood, and a double-row grooving cutter as a portable stoneworking cutting machine for grooving concrete walls. However, the illustrated electrical component housings 30, 80 and internal support members 35, 90 can also be applied to portable woodworking cutting machines such as circular saws and jigsaws for cutting wood.

[0125] Furthermore, the illustrated electrical component housings 30, 80 and internal support members 35, 90 can be applied not only to the electric power tools used for the various types of processing described above, but also to electric power tools used for various tasks, such as rechargeable cleaners used for cleaning, rechargeable fans that generate cool air, rechargeable gardening tools such as brush cutters and hedge trimmers, and rechargeable blowers that blow out strong winds.

[0126] The portable processing machine 50 of the second embodiment is an example of a portable processing machine in one aspect of the present disclosure. The main body housing 81 of the second embodiment is an example of a housing in one aspect of the present disclosure. The electric motor 71 of the second embodiment is an example of an electric motor in one aspect of the present disclosure. The motor shaft 71b of the second embodiment is an example of a motor shaft in one aspect of the present disclosure. The cutting tool 74 of the second embodiment is an example of a cutting tool in one aspect of the present disclosure.

[0127] The controller 85 of the second embodiment is an example of a controller in one aspect of the present disclosure. The electrical component housing 80 of the second embodiment is an example of an electrical component housing in one aspect of the present disclosure. The capacitor 86 of the second embodiment is an example of a first electrical component in one aspect of the present disclosure. The wireless communication adapter 87 of the second embodiment is an example of a second electrical component in one aspect of the present disclosure. The virtual plane S of the second embodiment is an example of an identical plane in one aspect of the present disclosure.

[0128] The portable processing machine 1 of the first embodiment and the portable processing machine 50 of the second embodiment are examples of electric work machines in yet another aspect of this disclosure. The battery 7 of the first embodiment and the battery 83 of the second embodiment are examples of batteries in yet another aspect of this disclosure. The cylindrical part 2B and bulging part 2A of the first embodiment and the main body housing 81 of the second embodiment are examples of housings in yet another aspect of this disclosure. The electric motor 10 of the first embodiment and the electric motor 71 of the second embodiment are examples of electric motors in yet another aspect of this disclosure.

[0129] Controller 31 in the first embodiment and controller 85 in the second embodiment are examples of controllers in yet other aspects of this disclosure. Electrical component housing 30 in the first embodiment and electrical component housing 80 in the second embodiment are examples of electrical component housings in yet other aspects of this disclosure. Gear shift operation unit 33 in the first embodiment and capacitor 86 in the second embodiment are examples of first electrical components in yet other aspects of this disclosure. Wireless communication adapter 34a in the first embodiment and wireless communication adapter 87 in the second embodiment are examples of second electrical components in yet other aspects of this disclosure.

[0130] The internal support member 35 of the first embodiment and the internal support member 90 of the second embodiment are examples of internal support members in yet another aspect of this disclosure. The right side of the first embodiment and the left side of the second embodiment are examples of the first side in yet another aspect of this disclosure. The left side of the first embodiment and the right side of the second embodiment are examples of the second side in yet another aspect of this disclosure. The first wall portion 35a of the first embodiment and the retaining frame portion 90b of the second embodiment are examples of the first positioning portion in yet another aspect of this disclosure. The second wall portion 35b of the first embodiment and the surrounding portion 90a of the second embodiment are examples of the second positioning portion in yet another aspect of this disclosure. [Explanation of Symbols]

[0131] W…Work material 1…Portable trimmer 2… Housing 2A...Bulging part, 2B...Cylindrical part 2R...Right half-split part, 2RA...Right bulge part, 2RB...Right cylindrical part 2L...Left half split part, 2LA...Left bulge part, 2LB...Left cylindrical part 2Aa...first frame, 2Ab...second frame, 2Ac...window, 2Ad...third frame, 2Ae...opening 2S... screw 3... Rack gear section 4…Depth scale 5... Bass 5a... Insertion relief section 6…Base mounting section 6a...Thumb screw, 6b...Wheel gear, 6c...Thumb dial, 6d...Window section 7…Battery 7a…Removal button, 7b…Remaining capacity indicator, 7c…Rail section 7L...Long side, 7S...Short side, 7D...Thickness side 10… Electric motor 11…Motor shaft J...Motor axis 12, 13… bearings 14…Cooling fan 15... Tip tool 20…Cover case 21...Battery mounting section 22... Rail support section 23... Positive terminal 24...Negative terminal 25... Control terminal 26…Lock recess 30…Electrical component housing 30L...Longest side of storage area, 30S...Shortest side of storage area S...Virtual Face 31… Controller 31a...Capacitor, 31b...Lead wire, 31c...Connector 32…Start switch (third electrical component) 32a...Operation panel, 32b...Start button, 32c...Standby button, 32e...Circuit board 33…Gear shifting control unit (first electrical component) 33a...Operation section, 33b...Base section 34… Wireless communication unit 34a... Wireless communication adapter (second electrical component), 34b... Adapter receiver, 34c... Cap 34d...Holding arm section, 34e...Engaging arm section, 34f...Engaging section, 34g...Engaging projection 35…Internal support member 35a...First wall section, 35b...Second wall section (encircling section), 35c...Stepped section V1, V2... gaps 50…Portable processing machine (double-row groove cutter) 51... Bass 52…Fixed cover 53...Main support shaft 60…Processing machine body 61…Movable cover 62... Dust collection duct 63...Hose 64…Dust collector 65…Front handle 66... ​​Rear handle 67…Switch lever 70…Drive unit 71…Electric motor 71a...motor housing, 71b...motor shaft 72...Reduction gear section 72a... Gear housing 73…Output shaft P…Output axis line 74...cutting tools 75…Spacer 76... Fixing nut 77...Arrow (direction of rotation of cutting tool 74) 80... Electrical component housing 80L...Longest side of storage area, 80S...Shortest side of storage area 81...Main housing 81L…Left half section, 81R…Right half section, 81c…Adapter mounting port, 81d…Retaining frame section (right side) 81e...Retaining frame (left side), 81f...Pressing part, 81g...Recess 82... Battery mounting section 83... Battery 83L...Long side, 83S...Short side, 83D...Thickness side 84… Wireless communication unit 85... Controller 85a, 85b... Retaining frame section 86... Capacitor (First Electrical Component) 87… Wireless communication adapter (second electrical component) 87a…Engagement part 88...Adapter receiver 89... Cap 89a...Holding arm portion, 89b...Engaging arm portion, 89c...Engaging claw portion, 89d...Engaging projection 90...Internal support member 90a...Enclosing part, 90b...Retaining frame part, 90c...Opening, 90d...Retaining wall part, 90e...Retaining part 90f...Escape Department

Claims

1. It is a portable processing machine, The electric motor is housed inside the housing, A tip tool that is partially or completely exposed to the outside of the housing and rotated by the electric motor, The electric motor and the controller, which is housed in the housing so as to be aligned in the axial direction of the motor shaft, are used to control the operation of the electric motor. A first electrical component and a second electrical component are housed in the electrical component housing between the controller and the electric motor. The battery has a rectangular parallelepiped shape with a long side and a short side, The shorter side of the battery extends perpendicular to the axis of the motor shaft, The electrical component housing section has a longitudinal direction parallel to the long side of the battery and a short direction parallel to the short side of the battery. The first electrical component and the second electrical component are arranged side by side along the shorter direction, The first electrical component and the second electrical component are positioned relative to each other via an internal support member having a first positioning portion at one end for holding the first electrical component and a second positioning portion at the other end for holding the second electrical component, and are arranged side by side in a direction perpendicular to the axis of the motor shaft, so as to be operable from the outside on both opposing sides of the housing. The first electrical component is a portable processing machine having a main body and an operating part that is movably mounted relative to the main body, the operating part passing through a window provided in the housing and protruding outward from the housing.

2. A portable processing machine according to claim 1, The second electrical component is detachably housed in the electrical component housing through an opening formed in the housing, A portable processing machine is provided with a housing on which a cap is detachably attached to close the opening and form part of the side wall of the housing.

3. A portable processing machine according to claim 2, A portable processing machine in which the first electrical component and the second electrical component are arranged side by side along the direction in which the second electrical component is attached to and detached from the electrical component housing.

4. A portable processing machine according to any one of claims 1 to 3, The second positioning portion of the internal support member is a portable processing machine that includes a surrounding portion into which the second electrical component is detachably inserted.

5. A portable processing machine according to any one of claims 1 to 3, The controller is a portable processing machine in which the side with the mounting surface for circuit components is positioned downward toward the electrical component housing.

6. A portable processing machine according to any one of claims 1 to 3, A contact portion having a contact surface that contacts the workpiece is provided with the contact surface perpendicular to the motor shaft of the electric motor. A window is provided on one side of the housing parallel to the motor shaft of the electric motor for viewing the machining area. A portable processing machine in which, with the motor axis direction being vertical and the side with the window facing forward, the first electrical component and the second electrical component are arranged side by side in the left-to-right direction when viewed towards the window.

7. A portable processing machine according to any one of claims 1 to 3, A third electrical component for starting is provided on the front of the housing. A portable processing machine in which the first electrical component, the second electrical component, and the third electrical component are arranged in a direction perpendicular to the axis of the motor shaft.

8. A portable processing machine according to any one of claims 1 to 3, The first electrical component is a speed control unit that is operated when changing the rotational speed of the electric motor, The second electrical component is a portable processing machine, which is a wireless communication adapter that is detachably housed in the electrical component housing and performs wireless communication with external devices.

9. It is an electric work machine, Battery and An electric motor housed within the housing and powered by the aforementioned battery, A controller, which is housed inside the housing and controls the operation of the electric motor, A first electrical component and a second electrical component are housed in the electrical component housing within the housing. The battery has a rectangular parallelepiped shape with a long side and a short side, The shorter side of the battery extends perpendicular to the axis of the motor shaft of the electric motor. The electrical component housing section has a longitudinal direction parallel to the long side of the battery and a short direction parallel to the short side of the battery. The first electrical component and the second electrical component are arranged side by side along the shorter direction, The first electrical component and the second electrical component are positioned relative to each other via an internal support member, the internal support member having a first positioning portion at one end for positioning the first electrical component and a second positioning portion at the other end for positioning the second electrical component, so that the three components, the first electrical component, the internal support member, and the second electrical component, are arranged in a straight line, the first electrical component and the second electrical component are arranged on opposing sides of the housing, and the first electrical component has a main body and an operating portion that is movable relative to the main body, the operating portion passing through a window portion provided in the housing and protruding outwards from the housing, in an electric work machine.

10. An electric work machine according to claim 9, The first electrical component has a cylindrical shape, The first positioning portion of the internal support member has a restricting portion that extends in the longitudinal direction of the first electrical component and restricts the radial displacement of the first electrical component.

11. An electric work machine according to claim 9 or 10, The second positioning portion of the internal support member is an electric work machine that includes a surrounding portion into which the second electrical component is detachably inserted.

12. An electric work machine according to claim 11, The surrounding portion is an electric work machine having a cutout for the assembly work of the second electrical component to the housing.

13. An electric work machine according to claim 9 or 10, The housing has a split structure that can be divided into two halves, left and right, along the motor axis direction of the electric motor. The internal support member is positioned within the housing by being sandwiched between the right and left halves of the housing.

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