JP2023054752A - portable processing machine - Google Patents

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

The present disclosure is a relatively small processing machine such as a trimmer (English name: laminate trimmer) used for edging and grooving of wood, and is manually operated by the user to perform various processing. It relates to a portable processing machine.

As disclosed in Patent Literatures 1 and 2, the trimmer has a configuration in which an electric motor is housed in a cylindrical housing having a thickness that can be held with one hand. The electric motor is installed vertically with the motor axis aligned with the axis of the housing. A cutting tool rotated by an electric motor protrudes downward from a base attached to the lower portion of the housing. Edging is performed by moving the cutting tool along the edge while holding the housing with one hand and bringing the base into contact with the upper surface of the workpiece.

In the trimmer of Patent Document 1, the upper portion of the electric motor extends to the vicinity of the upper portion of the housing. For this reason, various electrical components such as a control board and a speed change controller are compactly accommodated around the upper portion of the electric motor in the upper portion of the housing. In the trimmer of Patent Document 2, a DC brushless motor is used as the electric motor. Because DC brushless motors are axially short, there is often dead space between the ends of the electric motor and the ends of the housing. In this case, the dead space between the electric motor and the battery is utilized in the upper part of the housing to compactly house various electric parts such as a controller and a speed change dial.

JP 2012-196866 A JP 2018-79632 A

In general, portable processing machines such as trimmers are strongly required to be compact (operability) so that they can be easily held and moved by the user. In conventional trimmers, various electrical components are compactly accommodated near the top of the housing. For this reason, it has been difficult to add new electrical components without compromising compactness. In the present disclosure, it is possible to easily add new electrical components by devising the arrangement of various electrical components in a portable processing machine.

According to one aspect of the present disclosure, a portable processing machine includes, for example, an electric motor housed inside a housing, and an end tool partially or wholly exposed outside the housing and rotated by the electric motor. A portable processing machine includes, for example, an electric motor and a controller that is housed in a housing so as to be aligned in the axial direction of the motor shaft and that controls the operation of the electric motor. The portable processing machine includes, for example, a first electrical component and a second electrical component that are housed in an electrical component housing portion 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.

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

According to another aspect of the present disclosure, the portable processing machine includes, for example, an electric motor housed in a housing, and a posture perpendicular to the motor shaft of the electric motor. A contact portion is provided. The portable processing machine includes, for example, a battery attached to the electric motor on the side opposite to the abutment portion, and a tip tool protruding from the housing toward the abutment portion and rotated by the electric motor. A portable processing machine includes, for example, a controller that is housed in a housing on the battery side of an electric motor and that controls the operation of the electric motor. A portable processing machine includes, for example, a wireless communication adapter that is detachably attached to an electric component housing portion between a controller and an electric motor and performs wireless communication with an external device.

Therefore, the portable processing machine can be linked with an external device such as a dust collector. As a result, the operability and workability of the portable processing machine are enhanced, and the efficiency of the processing work is improved. The wireless communication adapter can be detached and used for other equipment.

According to still another aspect of the present disclosure, an electric working machine includes, for example, a battery, an electric motor housed in a housing and driven by the battery, and a controller built in the housing and controlling the operation of the electric motor. An electric working machine includes a first electric component and a second electric component that are housed in an electric component housing portion in a housing, for example. 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 locating portion for locating a first electrical component on a first side and a second locating portion for locating a second electrical component on a second side opposite the first side. As a result, for example, the first electrical component, the internal support member, and the second electrical component are arranged in a straight line.

Therefore, the first electrical component, the internal support member, and the second electrical component are compactly accommodated in the electrical component accommodation section while being positioned relative to each other. This makes it easy to add new electrical components without impairing the compactness of the electric working machine.

1 is an overall perspective view of a portable processing machine according to a first embodiment; FIG. 1 is a front view of a portable processing machine according to a first embodiment; FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2 of the portable processing machine according to the first embodiment; 4 is a cross-sectional view taken along line IV-IV in FIG. 3 of the portable processing machine according to the first embodiment; FIG. 1. It is a top view seen from the arrow V direction in FIG. 1 of the portable processing machine which concerns on 1st Example. The figure is shown with the battery removed. 1 is an exploded perspective view of a portable processing machine according to a first embodiment; FIG. This figure shows a state seen obliquely from the rear left. 1 is an exploded perspective view of a portable processing machine according to a first embodiment; FIG. This figure shows a state seen obliquely from the front left. 1 is an exploded perspective view of a portable processing machine according to a first embodiment; FIG. This figure shows the state seen obliquely from the rear left and from obliquely downward. 1 is an exploded perspective view of a portable processing machine according to a first embodiment; FIG. This figure shows the separated state of the cap and the removed state of the second electrical component. FIG. 11 is an overall perspective view of a portable processing machine according to a second embodiment; This figure shows the initial state in which the processing machine main body is positioned at the upper movement end. FIG. 11 is an overall perspective view of a portable processing machine according to a second embodiment; This figure shows a state in which the processing machine main body is pushed down to the lower movement end. FIG. 11 is a view in the direction of arrow XII in FIG. 11 and is a right side view of the portable processing machine according to the second embodiment. FIG. 12 is a plan view of the portable processing machine according to the second embodiment, taken along line XIII in FIG. 12; FIG. 12 is a cross-sectional view taken along line XIV-XIV in FIG. 12, and is a horizontal cross-sectional view of the portable processing machine according to the second embodiment. FIG. 14 is a cross-sectional view taken along line XV-XV in FIG. 13, which is a vertical cross-sectional view of the portable processing machine according to the second embodiment. FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG. 15 and is a transverse cross-sectional view of the drive unit; FIG. 11 is an exploded perspective view of an electrical component housing portion according to a second embodiment; In this figure the right half housing is shown. FIG. 11 is an exploded perspective view of an electrical component housing portion according to a second embodiment; In this figure the left half housing is shown.

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

In one or more embodiments, for example, the first electrical component has a main body and an operating part movably provided with respect to the main body. For example, the operating portion may be configured to protrude outward from the housing through a window provided in the housing. This ensures the compactness of the first electric component while ensuring the operability of the operation unit.

In one or more embodiments, for example, the second electrical component is removably mounted in the electrical component housing through an opening formed in the housing. The housing is removably provided with, for example, a cap that closes the opening and forms part of the side wall of the housing. A portion of the side wall of the housing is formed by the cap, thereby ensuring compactness around the opening.

In one or more embodiments, for example, the first electrical component and the second electrical component are arranged side by side along the mounting/dismounting direction of the second electrical component with respect to the electrical component housing. As a result, the second electrical component can be attached and detached without being affected by other electrical components such as lead wires.

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

In one or more embodiments, for example, the internal support member has a first locating feature for positioning a first electrical component on a first side and a second electrical component on a second side opposite the first side. It has a second positioning part for positioning. Accordingly, the first electrical component and the second electrical component are mutually positioned side by side in the longitudinal direction of the inner support member.

In one or more embodiments, for example, the second positioning portion of the inner support member comprises a surrounding portion into which the second electrical component is removably inserted. Thereby, the second electrical component is positioned in the vertical direction and the front-rear direction. Also, good assembling properties of the second electrical component are ensured.

In one or more embodiments, for example, the controller is arranged with the circuit component mounting surface facing downward toward the electrical component housing. Therefore, circuit components such as lead wires and capacitors are arranged compactly with respect to the first electrical component and the second electrical component.

In one or more embodiments, for example, the abutment against the workpiece is provided in a perpendicular orientation to the motor shaft of the electric motor. For example, a window is provided on one surface of the housing parallel to the motor shaft of the electric motor for visually recognizing the machined portion. For example, when the motor shaft direction is the vertical direction and the side on which the window is provided is the front side, the first electrical component and the second electrical component are arranged side by side in the horizontal direction toward the window. Accordingly, the first electrical component and the second electrical component are arranged on left and right sides toward the front of the housing. This ensures good operability of the first electrical component and the second electrical component.

In one or more embodiments, a third electrical component is provided for actuation, such as on the front face of the housing. For example, the first electrical component, the second electrical component, and the third electrical component are arranged side by side on the same plane perpendicular to the axis of the motor shaft. Thereby, the first electrical component, the second electrical component, and the third electrical component are compactly arranged in the electrical component housing portion. Moreover, good operability of the first electrical component, the second electrical component, and the third electrical component is ensured.

In one or more embodiments, for example, the first electrical component is a shift operating unit that is operated to change the rotational speed of the electric motor. Also, for example, the second electrical component is a wireless communication adapter that is detachably housed in the electrical component housing and performs wireless communication with an external device. Therefore, external equipment such as a dust collector can be interlocked with the portable processing machine having a variable speed function. This enhances the operability and workability of the portable processing machine. The wireless communication adapter can be detached and used for other equipment.

In one or more embodiments, for example, the first electrical component has a cylindrical body 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 radial displacement of the first electrical component. Therefore, the first electrical component is positioned in a state in which radial displacement is restricted by the first positioning portion of the internal support member.

In one or more embodiments, for example, the second positioning portion of the inner support member comprises a surrounding portion into which the second electrical component is removably inserted. Thereby, the second electrical component is positioned, for example, in the vertical direction and the front-rear direction. Also, good assembling properties of the second electrical component are ensured.

In one or more embodiments, for example, the enclosing portion has a cutout for assembly operations to the housing of the second electrical component. Therefore, the ease of assembly of the second electrical component to the housing is improved.

In one or more embodiments, for example, the housing has a halved structure that can be divided into left and right halves along the motor shaft direction of the electric motor. For example, the internal support member is positioned in the housing between right and left halves of the housing. Therefore, the structure for positioning the internal support member with respect to the housing is simplified. Also, the assembling property of the internal support member to the housing is improved.

As shown in FIGS. 1 to 4, in the first embodiment, as a portable processing machine 1, a portable cutting machine for woodworking called a so-called trimmer is exemplified. Also, a rechargeable portable processing machine 1 is exemplified. The portable processing machine 1 has a window portion 6d. The worker holds the portable processing machine 1 with the window 6d facing away from the worker. In the portable processing machine 1, the side with the window 6d is the front side, and the opposite side is the rear side. The right, left, up, and down directions follow the directions of the operator when the front part of the portable processing machine 1 faces the operator.

A portable processing machine 1 has a housing 2 . As shown in FIGS. 6 to 9, the housing 2 has a left and right split structure. The housing 2 is constructed by screwing together a right half portion 2R and a left half portion 2L. 6 to 8 show four screws 2S for the screw connection. 6 to 8, the screw 2S is shown tightened to the right half 2R for convenience of illustration. In practice, the four screws 2S are tightened while the right half 2R and the left half 2L are butted against each other.

The housing 2 is a molded component made of synthetic resin. The housing 2 has a cylindrical portion 2B having a vertical axis. An electric motor 10 is installed inside the cylindrical portion 2B. A motor shaft 11 of the electric motor 10 is vertically oriented. A motor axis J of the motor shaft 11 is aligned with or parallel to the axis of the cylindrical portion 2B. A substantially rectangular box-shaped bulging portion 2A is integrally formed on the upper portion of the cylindrical portion 2B. As shown in FIGS. 6 to 10, the cylindrical portion 2B and the bulging portion 2A are composed of a right cylindrical portion 2RB and a right bulging portion 2RA formed in the right half portion 2R and a left half portion 2L formed in the left half portion 2L. It is configured by combining the cylindrical portion 2LB and the left bulging portion 2LA. A cylindrical cover case 20 is provided outside the cylindrical portion 2B. The cylindrical portion 2B is press-fitted into the cover case 20. As shown in FIG. The cover case 20 is made of aluminum.

A DC brushless motor is used for the electric motor 10 . A motor shaft 11 of the electric motor 10 is supported by the cylindrical portion 2B so as to be rotatable about the motor axis J via a bearing 12 on the upper side and a bearing 13 on the lower side. 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 to cool the electric motor 10 .

The lower side of the motor shaft 11 protrudes downward from the lower portion of the cylindrical portion 2B. A rod-shaped cutting tool (end tool 15 ), for example, is coaxially attached to the projecting portion of the motor shaft 11 . The tip tool 15 can be easily exchanged with another tip tool according to the purpose of work or the like.

A rectangular base 5 (contact portion) is attached to the lower portion of the housing 2 . A tip tool 15 protrudes from the bottom surface of the base 5 . The base 5 is brought into contact with the upper surface of the workpiece W, and the protruding portion of the tip tool 15 is brought into contact with the edge of the workpiece W for edging, or the tip tool 15 is cut from the edge. Grooving is performed with

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 peripheral surface of the housing 2 by tightening the thumbscrew 6a. The base 5 is thereby fixed below the housing 2 . The fixed state of the base mounting portion 6 to the housing 2 can be loosened by loosening the thumbscrew 6a. By loosening the fixed state, the vertical position of the base 5 with respect to the housing 2 can be adjusted. By changing the vertical position of the base 5, the protrusion amount of the tip tool 15 from the base 5 can be adjusted. This makes it possible, for example, to adjust the depth of the grooving process.

The base mounting portion 6 is provided with a wheel gear 6b and a knob dial 6c for fine adjustment. The wheel gear 6b rotates integrally by rotating the knob dial 6c. The wheel gear 6 b is meshed with a rack gear portion 3 provided on the outer surface of the housing 2 . By rotating the wheel gear 6b by rotating the knob dial 6c in a state in which the fixed state is loosened, the meshing position with respect to the rack gear portion 3 is changed. As a result, the base 5 and the base mounting portion 6 are vertically displaced integrally, and the vertical position (processing depth) of the base 5 with respect to the tip tool 15 is finely adjusted. Depth scales 4 are displayed on both sides of the rack gear portion 3 to indicate the depth of processing.

The periphery of the machined portion is shielded by the base mounting portion 6, thereby suppressing scattering of dust and the like generated by the machining to the surroundings. A window portion 6d is provided in the front lower portion of the base mounting portion 6 for the operator to visually recognize the processed portion. In addition, by inserting a hand tool such as a spanner through the window portion 6d, the tip tool 15 can be attached to and detached from the motor shaft 11. As shown in FIG. At the center of the base 5, an insertion relief portion 5a through which the motor shaft 11 and the tip tool 15 are inserted is provided. Further, the processed portion is exposed upward by the insertion relief portion 5a.

A battery mounting portion 21 is provided on the upper surface of the bulging portion 2A. One battery 7 is detachably attached to the battery attachment portion 21 . In this specification, the directions of the portable processing machine 1 shown in the respective drawings are applied as they are to the front-rear, left-right, and up-down directions of the battery 7 attached to the battery attachment portion 21 . The battery 7 has a rectangular parallelepiped shape with long sides 7L and short sides 7S. In the attached state of the battery 7, the long side 7L corresponds to the side along the front and back longitudinal direction, and the short side 7S corresponds to the side along the left and 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 sides (thickness sides 7D) along the vertical direction. In the case of the first embodiment, the thick side 7D is shorter than the short side 7S (short side 7S>thick side 7D). It is also possible to attach a large-capacity battery whose thickness side 7D is larger than the short side 7S.

The battery 7 is a slide-mounted lithium-ion battery. The battery 7 is mechanically and electrically attached to the battery attachment portion 21 by sliding it forward. As shown in FIG. 5, the battery mounting portion 21 is provided with a pair of left and right rail receiving portions 22 . A pair of rail portions 7c are provided on the lower surface of the battery 7 . 6 to 8 show the left rail portion 7c. The battery 7 is mechanically attached to the battery attachment portion 21 by engaging the pair of rail portions 7c with the rail receiving portions 22 while sliding the battery 7 forward. A positive terminal 23 and a negative terminal 24 are provided between a pair of left and right rail receiving portions 22 . A control terminal 25 is provided between the positive terminal 23 and the negative terminal 24 . When the battery 7 is mechanically attached to the battery mounting portion 21, the positive terminal 23, the negative terminal 24, and the control terminal 25 are electrically connected to the positive terminal receiving portion, the negative terminal receiving portion, and the control terminal receiving portion of the battery 7, respectively. connected to

A lock recess 26 is provided in the rear portion of the battery mounting portion 21 to engage a lock claw portion (not visible in the drawing) of the battery 7 . The mounting state of the battery 7 with respect to the battery mounting portion 21 is locked by engaging the lock claw portion with the lock recess portion 26 . As shown in FIGS. 6 and 8, a removal button 7a is provided on the bottom rear side of the battery 7. As shown in FIGS. When the removal button 7a is pushed upward with a fingertip, the lock claw portion is released from the lock concave portion 26. As shown in FIG. As a result, the mounting lock state of the battery 7 is unlocked. In this unlocked state, the battery 7 can be slid rearward and removed from the battery mounting portion 21 . A remaining capacity display portion 7b is provided on the rear surface of the battery 7. As shown in FIG.

The bulging portion 2A has a rectangular box shape that is long in the front-rear direction and short in the left-right direction. The longitudinal direction of the bulging portion 2A is along the long side 7L of the battery 7. As shown in FIG. The long side 7L of the battery 7 is aligned with the attachment/removal direction (sliding direction) with respect to the battery attachment portion 21 . The lateral width direction of the bulging portion 2A is along the short side 7S of the battery 7. As shown in FIG. As shown in Figs.

As shown in FIGS. 3 and 4, the internal space of the bulging portion 2A serves as an electrical component housing portion 30. As shown in FIG. Therefore, like the bulging portion 2A, the electric component housing portion 30 is long in the front-rear direction and short in the left-right width direction. The longitudinal direction of the electrical component housing portion 30 (the housing long side 30L) is along the long side 7L of the battery 7. As shown in FIG. The short side 30</b>S of the electric component housing portion 30 extends along the short side 7</b>S of the battery 7 .

A controller 31 for mainly controlling the operation of the electric motor 10 is housed in the upper portion of the electric component housing portion 30 . The controller 31 has a rectangular flat plate shape, and a control board is housed in a rectangular case with a shallow bottom, and the mounting surface of the control board (open side of the case) is insulated by resin molding. The control board of the controller 31 is equipped with a control circuit composed of a microcomputer that transmits a control signal based on the rotor position information detected by the sensor board of the electric motor 10 . Further, the control board is equipped with a drive circuit composed of FETs for switching the current of the electric motor 10 based on the control signal received from the control circuit. Further, the control board is equipped with an auto-stop circuit or the like that cuts off the power supply to the electric motor 10 so as not to over-discharge or over-current according to the detection result of the state of the battery 7 .

As shown in FIGS. 3, 4, 6 to 8, the controller 31 is housed with the mounting surface side of the control board facing downward. For this reason, electric parts such as capacitors 31a, lead wires 31b, and connectors 31c mounted on the control board protrude downward from the case. In particular, as shown in FIG. 8, lead wires 31b such as, for example, three power wires connected to the controller 31 are bent downward into a loop shape and routed in the front-rear direction. Various electric parts such as a speed change operation unit 33, a wireless communication unit 34, and an internal support member 35, which will be described below, are accommodated along a path penetrating left and right through an empty space between the loop-shaped lead wire 31b and the controller 31. It is Capacitor 31a has, for example, a cylindrical shape. The capacitor 31 a is mounted on the control board with its longitudinal direction along the lower surface of the controller 31 . The capacitor 31a extends along the left-right direction at the front position of the electric component housing portion 30 (behind the start switch 32).

Details of the electrical component housing 30 are shown in FIGS. The electric component housing portion 30 houses a start switch 32 for start/stop operation, a shift operation unit 33 for shift operation, and a wireless communication unit 34 for wireless communication. A start switch 32 corresponding to a third electrical component is housed in the front portion of the electrical component housing portion 30 . The shift operation unit 33 is housed on the right side of the electrical component housing portion 30 . The wireless communication unit 34 is housed on the left side of the electrical component housing section 30 .

The start switch 32 , the speed change 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 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. As shown in FIG.

The start switch 32 is held by a laterally elongated oval first frame portion 2Aa provided on the front surface of the bulging portion 2A. The activation switch 32 corresponds to the third electrical component. The activation switch 32 has an operation portion 32a and a substrate portion 32e. The operating portion 32a is exposed on the front surface of the bulging portion 2A. A start button 32b and a standby button 32c are arranged on the operation unit 32a. When the start button 32b is pressed with the battery 7 attached to the battery attachment portion 21, the electric motor 10 is activated and the tool bit 15 rotates around the motor axis J. As shown in FIG. When the start button 32b is pressed in the activated state, the electric motor 10 is stopped. When the standby button 32c is turned on, the lock is turned off. In the lock-off state, the electric motor 10 does not start even if the start button 32b is pressed. This prevents inadvertent activation. When the standby button 32c is pressed in the lock-off state, the lock-off state is released. The electric motor 10 is started by pressing the start button 32b in the unlocked state.

As shown in FIGS. 3 and 8, a substrate portion 32e is held behind the operation portion 32a. Each operation signal of the start switch 32 is input to the controller 31 through the substrate portion 32e. As a result, operation control such as starting and stopping of the electric motor 10 is performed.

The shift operation unit 33 corresponds to the first electrical component. As shown in FIGS. 4, 6 and 7, the shift operation unit 33 has an operation portion 33a that is rotated when changing the rotation speed of the electric motor 10. As shown in FIG. The operating portion 33a is rotatably supported by the base portion 33b. The operating portion 33a has a disk shape. The operating portion 33a is rotatably supported around a vertical axis. The shift operation unit 33 is held by a second frame portion 2Ab provided on the right side (right bulging portion 2RA) of the bulging portion 2A. The second frame portion 2Ab has a rectangular frame shape protruding leftward from the inside of the right bulging portion 2RA. The right side portion of the operation portion 33a is exposed to the outside through the window portion 2Ac of the second frame portion 2Ab. The user can place a fingertip on the portion exposed through the window 2Ac and rotate the operating portion 33a in the front-rear direction. A rotation operation amount of the operation portion 33a is input to the controller 31 through the base portion 33b. Thereby, the rotation speed of the electric motor 10 is controlled.

As shown in FIGS. 4, 6, 7, and 9, the radio communication unit 34 is housed in the left side of the electric component housing section 30. As shown in FIGS. 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. A radio wave indicating the start/stop state of the electric motor 10 is transmitted from the wireless communication adapter 34a. The wireless communication adapter 34a corresponds to the second electrical component. The adapter receiving portion 34b is held in the deep portion of the third frame portion 2Ad provided on the left side (left bulging portion 2LA) of the bulging portion 2A. The third frame portion 2Ad has a rectangular frame shape that protrudes rightward from the inside of the left bulging portion 2LA. The third frame portion 2Ad opens outward through an opening 2Ae. The wireless communication adapter 34a is inserted into the adapter receiving portion 34b to be mechanically coupled and electrically connected. The wireless communication adapter 34a is detachably attached to the adapter receiving portion 34b.

The wireless communication adapter 34a is removed by pulling it out from the adapter receiving portion 34b. The wireless communication adapter 34a removed from the adapter receiving portion 34b can be taken out 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.

The opening 2Ae of the third frame portion 2Ad is closed by a cap 34c. The cap 34c is pushed into the opening 2Ae with a small force and held closed. The closed cap 34c is held substantially flush with the outer surface of the bulge 2A and forms part of the side wall of the bulge 2A.

As shown in FIG. 9, the cap 34c is integrally provided with a holding arm portion 34d and an engaging arm portion 34e. The holding arm portion 34d extends from the rear end portion of the cap 34c toward the innermost portion of the third frame portion 2Ad. An engaging projection 34g is integrally provided at the tip of the holding 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 to the left and right. As a result, the cap 34c is prevented from coming off the third frame portion 2Ad while allowing the cap 34c to move toward and away from the opening 2Ae. The cap 34c can be separated from the third frame portion 2Ad by elastically deforming the engaging projection 34g and removing it from the third frame portion 2Ad. FIG. 9 shows the separated state (disassembled state) of the cap 34c.

An engaging arm portion 34e is provided integrally with the inner surface of the cap 34c at substantially the center thereof. The engaging arm portion 34e protrudes inward from the third frame portion 2Ad. The projecting tip side of the engaging arm portion 34e is curved in a hook shape. A hooked end portion of the engaging arm portion 34e is hooked on an engaging portion 34f provided on the side portion 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 on the engaging portion 34f. As a result, after opening the opening 2Ae by pulling the cap 34c, the wireless communication adapter 34a is pulled out together by moving the cap 34c in the direction 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 for other equipment. The cap 34c can be kept closed with respect to the empty third frame portion 2Ad from which the wireless communication adapter 34a has been removed.

As shown in FIGS. 4 and 6-8, the shift operation unit 33 and the wireless communication unit 34 are positioned relative to each other via an internal support member 35. As shown in FIG. The internal support member 35 is an integrally molded part made of resin, and has a rectangular parallelepiped shape that is elongated in the left-right direction and is generally similar to a flat plate. On the right side (first side) of the internal support member 35, a rectangular frame-shaped first wall portion 35a having walls on four front, rear, top and bottom directions is integrally provided. The first wall portion 35a extends rightward. The first wall portion 35a is open rightward. On the left side (second side) of the internal support member 35, a rectangular frame-shaped second wall portion 35b is integrally provided, which similarly has four walls in the front, rear, top, and bottom directions. The second wall portion 35b extends leftward. The second wall portion 35b is open toward the left. The second wall portion 35b has a rectangular frame shape that is one size larger than the first wall portion 35a. Therefore, a stepped portion 35c is provided between the first wall portion 35a and the second wall portion 35b. The second wall portion 35b is formed in a concave shape deeper than the first wall portion 35a.

The base portion 33b of the speed change operation unit 33 is coupled 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 shift operating unit 33. As shown in FIG. In this state, the first wall portion 35a is elastically inserted inside the second frame portion 2Ab and held in position. As a result, the internal support member 35 is positioned and held with respect to the second frame portion 2Ab.

The adapter receiving portion 34b of the wireless communication unit 34 is inserted 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 that detachably holds the wireless communication adapter 34a of the wireless communication unit 34 via the adapter receiving portion 34b. As shown in FIG. 4, the adapter receiving portion 34b is also inserted into the inner peripheral side of the third frame portion 2Ad. Therefore, the adapter receiving portion 34b is held across both the inner peripheral side of the second wall portion 35b of the internal support member 35 and the inner peripheral side of the third frame portion 2Ad. As a result, the internal support member 35 is positioned and held with respect to the third frame portion 2Ad via the adapter receiving portion 34b.

The internal support member 35 simplifies the work of assembling the shift operating unit 33, the wireless communication unit 34, and various other electrical components to the electrical component housing portion 30. As shown in FIG. For example, the 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. After that, while inserting the adapter receiving portion 34b into the second wall portion 35b of the internal support member 35, the right half portion 2R and the left half portion 2L are butted against each other. In this way, the right half 2R and the left half 2L are assembled with the five parts of the right half 2R, the speed change operation unit 33, the internal support member 35, the wireless communication unit 34, and the left half 2L. By screwing together, the assembly work for this part is completed. By assembling, the shift operating unit 33 and the wireless communication unit 34 are positioned side by side along a common imaginary plane S orthogonal to the motor axis J via the internal support member 35 .

The right-side first wall portion 35a and the left-side second wall portion 35b of the internal support member 35 are appropriately set in length in the left-right direction. As shown in FIG. 4, in the assembled state of the electrical component housing portion 30, a slight 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, in the assembled state of the electrical component housing portion 30, a slight gap V2 is provided between the left end portion of the second wall portion 35b of the internal support member 35 and the right end portion of the third frame portion 2Ad.

In this assembled state, the second wall portion 35b of the internal support member 35 is provided with respect to the space between the left end of the second frame portion 2Ab and the right end of the third frame portion 2Ad so that the gap V1 or V2 is generated. The length dimension in the left-right direction is set appropriately. By setting the dimensions of each part so as to generate the gap V1 or V2, the shift operation unit 33 and the wireless communication unit 34 can be assembled without applying excessive external force in the left-right direction.

According to the first embodiment described above, the rectangular parallelepiped battery 7 having the long sides 7L and the short sides 7S is attached to the battery attachment portion 21 . The battery 7 is attached so that the long sides 7L are aligned in the front-rear direction and the short sides 7S are aligned in the left-right direction. As a result, the battery 7 can be mounted compactly in the left-right direction. The electric component housing portion 30 has housing long sides 30L along the long sides 7L of the battery 7 and housing short sides 30S along the short sides 7S of the battery 7 . A shift operation unit 33 corresponding to the first electric component and a wireless communication unit 34 corresponding to the second electric component are arranged side by side along the housing portion short side 30S. As a result, a space for arranging other electric parts such as the lead wire 31b and the connector 31c is secured in front or behind the speed change operation unit 33 and the wireless communication unit .

According to the illustrated first embodiment, the operation portion 33a of the shift operation unit 33 protrudes outward through the window portion 2Ac provided in the bulging portion 2A. As a result, the compactness of the shift operation unit 33 is ensured while ensuring the rotational operability of the operation portion 33a.

According to the exemplified first embodiment, the wireless communication adapter 34a is detachably mounted inside the electric component housing portion 30 through the opening 2Ae provided in the bulging portion 2A. The bulging portion 2A is detachably provided with a cap 34c that closes the opening 2Ae and forms a part of the side wall of the bulging portion 2A. The cap 34c forms a part of the side wall of the bulging portion 2A, thereby ensuring compactness around the opening 2Ae.

According to the illustrated first embodiment, the shift operation unit 33 and the wireless communication unit 34 are arranged side by side along the attachment/detachment direction (horizontal direction) of the wireless communication adapter 34a with respect to the electrical component housing portion 30 . As a result, the operability of attaching and detaching the wireless communication adapter 34a is not hindered by the presence of other electric parts such as the lead wires 31b of the controller 31. FIG.

According to the illustrated first embodiment, the shift operating unit 33 and the wireless communication unit 34 are positioned relative to each other via the internal support member 35 . Accordingly, the shift operating unit 33 and the wireless communication unit 34 are positioned compactly within the electrical component housing portion 30 .

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

In addition, the internal support member 35 has a second wall portion 35b (surrounding portion) as a second positioning portion. The wireless communication adapter 34a is detachably inserted into the second wall portion 35b (surrounding portion) via the adapter receiving portion 34b. As a result, good attachment of the wireless communication unit 34 to the electrical component housing portion 30 is ensured. Moreover, good assembling properties of the adapter receiving portion 34b with respect to the internal support member 35 are ensured.

According to the illustrated first embodiment, the controller 31 is arranged with the circuit component mounting surface facing downward toward the electrical component housing portion 30 . Therefore, the circuit components such as the capacitor 31a, the lead wire 31b, and the connector 31c are arranged compactly with respect to the shift operating unit 33 and the wireless communication unit .

According to the illustrated first embodiment, a window portion 6d is provided on the front surface of the base mounting portion 6 coupled to the housing 2 for visually recognizing the processed portion. A shift operation unit 33 is arranged on the right side (right bulging portion 2RA) of the bulging portion 2A, and a radio communication unit 34 is arranged on the left side (left bulging portion 2LA) of the bulging portion 2A facing the window portion 6d on the front side. be. This ensures good operability of the shift operation unit 33 and the wireless communication unit 34 .

According to the illustrated first embodiment, the activation switch 32 is arranged on the front surface of the bulging portion 2A. A shift operation unit 33, a wireless communication unit 34, and a start switch 32 are arranged side by side on a virtual plane S perpendicular to the motor axis line J. As shown in FIG. As a result, the shift operation unit 33, the wireless communication unit 34, and the start switch 32 are arranged compactly in the electrical component housing portion 30, particularly in the height direction.

According to the exemplified first embodiment, the speed change operation unit 33 changes the rotation speed of the electric motor 10 in accordance with the machining mode, so that high-quality machining work can be performed efficiently. In addition, the wireless communication unit 34 can be used to interlock external equipment such as a dust collector with respect to the start/stop of the portable processing machine 1 . Thereby, the operability and workability of the portable processing machine 1 are enhanced. The wireless communication adapter 34a can be detached and used as a wireless communication adapter for other devices.

Various modifications can be made to the first embodiment described above. For example, the case where the battery 7 is attached to and detached from the battery attachment portion 21 (sliding direction) in the front-rear direction is illustrated, but it may be attached and detached by sliding in the left-right direction. Moreover, although the configuration in which the battery 7 is slid in the direction of the long side 7L to attach and detach has been exemplified, a configuration in which the battery 7 is slid in the direction of the short side 7S to attach and detach may be employed.

Although the shift operation unit 33 is exemplified as the first electric component, the wireless communication unit 34 is exemplified as the second electric component, and the start switch 32 is exemplified as the third electric component, other electric components may be used. . Although the gear shift operation unit 33 is arranged on the right side and the wireless communication unit 34 is arranged on the left side as an example, they may be arranged on opposite sides.

Although the window portion 6d side for viewing the processed portion is set as the front surface, and the shift operation unit 33 and the wireless communication unit 34 are arranged on the opposite sides of each other, the front surface is regulated based on other members or structures. be able to. Therefore, the shift operation unit 33 and the wireless communication unit 34 may be arranged on the front and rear surfaces. The shift operation unit 33 (first electric component) and the wireless communication adapter 34a (second electric component) are housed at the same height position along a common imaginary plane S, and are arranged on opposite sides of the bulging portion 2A. Equivalent effects can be obtained by arranging them.

Although the configuration in which the activation switch 32 is provided on the front surface of the bulging portion 2A is exemplified, it may be arranged on the upper surface or the rear surface of the bulging portion 2A. Further, the activation switch 32 may be arranged at a height position away from the virtual plane S.

Although both the first wall portion 35a (first end) and the second wall portion 35b (second end) of the internal support member 35 are formed into a rectangular frame shape (surrounding portion) as an example, only one of them is formed into a frame shape. It may be formed into a shape. Therefore, the surrounding portion of the second wall portion 35b may be provided in other shapes.

The shapes of the first wall portion 35a and the second wall portion 35b may be, for example, insertion protrusions instead of the illustrated rectangular frame shape. The first end and/or the second end of the inner support member 35 may be inserted into the positioning holes provided in the first electrical component and/or the second electrical component to position the two electrical components relative to each other. The internal support member 35 may be omitted.

As the portable processing machine 1, a trimmer used for relatively light cutting work that is often held and moved with one hand is exemplified, but a router that is held and moved with both hands and used for relatively heavy cutting work is also exemplified. The arrangement structure of the electrical components described above can be applied. Also, the present invention can be similarly applied to a portable processing machine that does not have the base 5 and the base mounting portion 6 that are brought into contact with the workpiece W. FIG. Furthermore, the tip tool 15 may be a disc-shaped mop (pad) or a sanding disc (grindstone), instead of being a cutting tool. Therefore, the present disclosure is also applicable to so-called polishers and sanders.

The portable processing machine 1 of the first embodiment is an example of a portable processing machine according to one aspect of the present disclosure. The cylindrical portion 2B and bulging portion 2A of the first embodiment are an example of a housing according to 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 the motor shaft in one aspect of the present disclosure. The tip tool 15 of the first embodiment is an example of the tip tool in one aspect of the present disclosure.

The controller 31 of the first embodiment is an example of a controller in one aspect of the present disclosure. The electrical component housing portion 30 of the first embodiment is an example of the electrical component housing portion in one aspect of the present disclosure. The shift operating 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 surface S of the first example is an example of the same surface in one aspect of the present disclosure.

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

The controller 31 of the first embodiment is an example of a controller in another aspect of the present disclosure. The wireless communication adapter 34a of the first embodiment is an example of a wireless communication adapter in another aspect of the present disclosure. The dust collector of the first embodiment is an example of external equipment in another aspect of the present disclosure.

10 to 13 show a portable masonry cutting machine called a so-called double-row groove cutter or wall chaser as a portable processing machine 50 according to a second embodiment of the present disclosure. The portable machine 50 can perform two rows of grooving at the same time. The portable processing machine 50 has a rectangular plate-shaped base 51 that contacts the workpiece W and a processing machine main body 60 that is supported on the upper surface side of the base 51 . The workpiece W is mainly a wall made of concrete or stone.

A fixed cover 52 is supported on the upper surface of the base 51 . A processing machine main body 60 is supported on the rear side of the fixed cover 52 via a main body support shaft 53 so as to be vertically swingable. The processing machine main body 60 has a semi-cylindrical movable cover 61 . The rear portion of the movable cover 61 is connected to the rear portion of the fixed cover 52 via the main body support shaft 53 .

The fixed cover 52 is housed inside the movable cover 61 so as to be relatively movable forward and backward. The movable cover 61 is spring-biased in a direction (upward) away from the base 51 . As shown in FIG. 11, grooving is performed by the user pushing down the movable cover 61 against the biasing force of the spring.

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

A drive unit 70 is coupled to the right side of the movable cover 61 . As shown in FIGS. 14, 15 and 16, the drive section 70 has an electric motor 71, a reduction gear section 72 and an output shaft 73. As shown in FIG. The electric motor 71 is housed in a motor housing 71a. The reduction gear portion 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 portion 72 . The output shaft 73 is rotatably supported around an output axis P perpendicular to the axis of the motor shaft 71b (motor axis J).

The output shaft 73 protrudes inside the movable cover 61 . Two circular cutting tools 74 (tip tools) are coaxially attached to the output shaft 73 inside the movable cover 61 . The two cutting tools 74 have the same diameter. Diamond wheels, for example, are used for the two cutting tools 74 . The interval between the two cutting tools 74 can be arbitrarily set by changing the number and size of the spacers 75 . The two cutting tools 74 are fixed to the output shaft 73 by tightening the fixing nut 76 .

When the movable cover 61 is pushed down by the user as shown in FIGS. The exposed portion is cut into the workpiece W. In the cutting state of the cutting tool 74, the portable processing machine 50 is moved along the surface direction of the workpiece W, for example, rearward (to the left in FIG. 12) to proceed with two rows of grooving.

A gate-shaped front handle 65 is supported on the front portion of the movable cover 61 . The front handle 65 extends in the left-right direction. The front handle 65 can be moved in parallel in the front-rear direction to adjust the use position. The user can hold the front handle 65 with, for example, the left hand and push down the movable cover 61 .

A cylindrical body housing 81 is coupled to the rear portion of the motor housing 71a. The main body housing 81 has a half-split structure that can be divided into left and right parts. The main body housing 81 is constructed by abutting the left half portion 81L on the left side and the right half portion 81R on the right side.

A battery mounting portion 82 is provided on the upper portion of the body housing 81 . One battery 83 is detachably attached to the battery attachment portion 82 . Electric power of the attached battery 83 is supplied as a power source for the electric motor 71 . The battery 83 is a slide-mount type lithium ion battery. Battery 83 has a rectangular parallelepiped shape having long sides 83L, short sides 83S, and thick sides 83D. The battery 83 is mounted with the short side 83S orthogonal to the motor axis J as in the first embodiment. The battery 83 can be used repeatedly by removing it from the battery mounting portion 82 and charging it with a separately prepared charger.

A loop-shaped rear handle 66 is supported at the rear of the body housing 81 . A switch lever 67 is provided on the inner peripheral side of the rear handle 66 . When the switch lever 67 is pulled by the fingertip of the hand holding the rear handle 66, the electric motor 71 is activated and the two cutting tools 74 are rotated. The rear handle 66 is provided so that its position can be changed around an axis parallel to the motor axis J. As shown in FIG.

For example, the user can grip the rear handle 66 with the right hand and the front handle 65 with the left hand to move the portable processing machine 50 . An arrow 77 indicating the direction of rotation of the cutting tool 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 rotating the two cutting tools 74 in the direction of the arrow 77 and moving the portable processing machine 50 rightward (backward) as seen from the user. In the second embodiment, the direction in which grooving progresses (user side) is defined as the rearward direction. The left-right direction is based on the user facing forward at the rear of the portable processing machine 50 . There are also two-row grooving cutters (wall chasers) in which the rotating direction of the cutting tool is opposite and the product is machined in a direction away from the user (forward). Even in that case, the user side is defined as the rear.

As shown in FIGS. 14 to 18, an electric component housing portion 80 is provided inside a body housing 81 . The electrical component housing portion 80 is provided below the battery mounting portion 82 . The electric component housing portion 80 has housing long sides 80L parallel to the long sides 83L of the battery 83 attached to the battery mounting portion 82 and housing short sides 80S parallel to the short sides 83S of the battery 83 . The accommodation long side 80L extends along the front-rear direction (motor axis J direction). The accommodation portion short side 80S extends in the left-right direction. The electric component housing portion 80 is a space portion that is long in the front-rear direction along the longitudinal direction of the battery 83 (the direction of the long side 83L) and short in the left-right direction.

A rectangular plate-shaped controller 85, a first electrical component, and a second electrical component are housed in the electrical component housing portion 80. As shown in FIG. The controller 85 has a configuration in which a control board is accommodated in a shallow case and insulated by resin molding. The controller 85 is accommodated in a posture in which the surface direction is along the short side 80S direction of the accommodation portion. The controller 85 is housed in the electric component housing section 80 with the mounting surface side of the control board facing forward. Although not shown, a plurality of lead wires are led out from the mounting surface of the control board as in the first embodiment. Electrical components such as lead wires and connectors are routed within the electrical component housing portion 80 . The operation of the electric motor 71 is controlled by the controller 85 .

As shown in FIGS. 17 and 18, the controller 85 is sandwiched between upper and lower holding frame portions 85 a and 85 b provided inside the body housing 81 and held in the electric component housing portion 80 . The controller 85 is attached to the electric component housing portion 80 in a laterally positioned state by connecting the left half portion 81L and the right half portion 81R of the body housing 81 to each other.

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 omitted from the drawing, the capacitor 86 is connected to the control board of the controller 85 by a lead wire. The capacitor 86 is accommodated in a posture extending vertically along the left side of the controller 85 .

The wireless communication unit 84 includes a wireless communication adapter 87 , an adapter receiving portion 88 and a cap 89 . A signal indicating the start/stop state of the electric motor 71 or the operating state of the switch lever 67 is transmitted from the wireless communication adapter 87 to another external device (the dust collector 64). Note that FIG. 16 shows a state in which the wireless communication adapter 87 is removed.

As shown in FIG. 16, the wireless communication adapter 87 is accommodated in the electric component accommodating portion 80 through an adapter mounting opening 81c provided in the right side (right half portion 81R) of the body housing 81. As shown in FIG. The wireless communication adapter 87 is mounted by being inserted into an adapter receiving portion 88 positioned in the electrical component housing portion 80 . The adapter mounting opening 81c is closed with a cap 89 made of resin.

A rectangular frame-shaped holding frame portion 81d is integrally provided along the adapter mounting opening 81c. The holding frame portion 81d extends so as to protrude inward from the right half portion 81R. The right portion (mounting port side) of the adapter receiving portion 88 is inserted into the holding 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 to be mechanically coupled and electrically connected. The wireless communication adapter 87 is detachably attached to the adapter receiving portion 88 .

The wireless communication adapter 87 is removed by pulling it out from the adapter receiving portion 88 . The wireless communication adapter 87 removed from the adapter receiving portion 88 can be taken out from the holding frame portion 81d through 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 holding frame portion 81d through the adapter attachment opening 81c.

The cap 89 is pushed into the adapter mounting opening 81c with a small force and held in a closed state. A closed cap 89 is held substantially flush with the outer surface of the body housing 81 and forms part of the side wall of the body housing 81 .

As shown in FIGS. 17 and 18, the cap 89 is integrally provided with one holding arm portion 89a, two engaging arm portions 89b, and one engaging claw portion 89c. The holding arm portion 89a extends from the lower end portion of the cap 89 toward the inner portion of the holding frame portion 81d. An engaging projection 89d is integrally provided at the tip of the holding arm portion 89a. The engaging projection 89d is engaged with the inner wall surface of the holding frame portion 81d so as to be displaceable to the left and right. As a result, the cap 89 is prevented from falling off from the holding frame portion 81d while allowing the cap 89 to move toward and away from the adapter mounting opening 81c. The cap 89 can be separated from the holding frame portion 81d by elastically deforming the engaging projection 89d and removing it from the holding frame portion 81d.

Two engaging arm portions 89b are integrally provided on the inner surface of the cap 89 . The engaging arm portion 89b protrudes toward the inside of the holding frame portion 81d. The projecting tip side of the engaging arm portion 89b is curved in a hook shape. The hook-shaped tip of the engaging arm portion 89b is hooked to the engaging portion 87a provided on both the front and rear sides of the wireless communication adapter 87, respectively. The wireless communication adapter 87 is attached to the adapter receiving portion 88 with the engaging arm portion 89b of the cap 89 hooked on the engaging portion 87a. As a result, after the cap 89 is pulled to open the adapter mounting opening 81c, the wireless communication adapter 87 is pulled out together with the adapter mounting opening 81c and moved 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 for other equipment. As shown in FIG. 16, the cap 89 can be closed with respect to the empty holding frame portion 81d from which the wireless communication adapter 87 has been removed. The closed state of the cap 89 is maintained by engaging the engaging claw portion 89c with the concave portion 81g of the holding frame portion 81d.

Capacitor 86 as the first electrical component and wireless communication adapter 87 as the second electrical component are mutually positioned by one internal support member 90 . The internal support member 90 has a rectangular frame-shaped surrounding portion 90a and a flat plate-shaped pressing frame portion 90b. The internal support member 90 is a molded part made of resin, and the surrounding portion 90a and the pressing frame portion 90b are integrally formed. The pressing frame portion 90b extends vertically. A surrounding portion 90a is provided at the lower portion of the right side surface (second side) of the pressing frame portion 90b.

The surrounding portion 90a extends rightward and opens rightward. The adapter receiving portion 88 is inserted and held in the opening 90c of the surrounding portion 90a. As shown in FIG. 18, a groove-shaped relief portion 90f is provided in the lower portion of the surrounding portion 90a. When the adapter receiving portion 88 is inserted into the surrounding portion 90a, the relief portion 90f opens rightward (toward the adapter mounting opening 81c). The holding arm portion 89a of the cap 89 is inserted into the relief portion 90f. The holding arm portion 89a is inserted into the relief portion 90f, and the engaging projection 89d is engaged with the inner wall surface of the holding frame portion 81d. The relief portion 90f ensures good assembling performance of the cap 89 with respect to the holding frame portion 81d.

Two holding wall portions 90d are integrally provided on the left side surface of the holding frame portion 90b. The two pressing wall portions 90d protrude leftward in parallel with each other. A circular pressing portion 90e is provided at the left end of the two pressing walls 90d. The arc-shaped pressing portion 90 e abuts on the capacitor 86 . As a result, the capacitor 86 is held along the pressing frame portion 90b.

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

As shown in FIGS. 16 and 18, a holding frame portion 81e having a rectangular frame shape is integrally provided on the inner surface of the left half portion 81L of the body housing 81. As shown in FIGS. The holding frame portion 81e is provided facing the holding frame portion 81d of the right half portion 81R. An arc-shaped pressing portion 81f is provided on the holding frame portion 81e. A capacitor 86 is brought into contact with the pressing portion 81f. As a result, the capacitor 86 is held in a state of being sandwiched from both the left and right sides by the holding portion 90e of the internal support member 90 and the holding portion 81f of the holding frame portion 81e, as shown in FIG.

As shown in FIG. 16, the internal support member 90 is attached to the main body housing 81 while being sandwiched between the holding frame portion 81d of the right half portion 81R and the holding frame portion 81e of the left half portion 81L of the main body housing 81 from both left and right sides. Positioning is held. Capacitor 86 and wireless communication unit 84 (wireless communication adapter 87) are positioned in electrical component housing portion 80 by holding internal support member 90 between left and right half portions 81L and 81R of body housing 81 . The capacitor 86 and the wireless communication unit 84 are positioned side by side along the attachment/detachment direction (horizontal direction) of the wireless communication adapter 87 with respect to the electric component housing portion 80 .

The three components of the capacitor 86, the wireless communication unit 84, and the internal support member 90 are housed in a straight line (along the housing short side 80S of the electrical component housing 80) on a common imaginary plane S perpendicular to the motor axis J. be done. In addition, the internal support member 90 simplifies the work of assembling the capacitor 86 and the wireless communication unit 84 to the electrical component housing portion 80 .

According to the second embodiment, a rectangular parallelepiped battery 83 having long sides 83L and short sides 83S is attached to the battery attachment portion 82 . The battery 83 is attached so that the long sides 83L are aligned in the front-rear direction and the short sides 83S are aligned in the left-right direction. As a result, the battery 83 can be mounted compactly in the left-right direction. The electrical component housing portion 80 has housing long sides 80L along the long sides 83L of the battery 83 and housing short sides 80S along the short sides 83S of the battery 83 . A capacitor 86 corresponding to the first electric component and a wireless communication adapter 87 corresponding to the second electric component are accommodated side by side along the short side 80S of the accommodating portion. As a result, space is secured in front of the capacitor 86 and the wireless communication adapter 87 or behind the controller 85 for arranging other electrical components such as lead wires and connectors.

According to the illustrated second embodiment, the wireless communication adapter 87 is detachably mounted in the electric component housing portion 80 through the adapter mounting opening 81c. A cap 89 that forms a part of the outer shell of the body housing 81 is detachably provided in the adapter mounting opening 81c. Since the cap 89 forms part of the outer shell of the main body housing 81, compactness around the adapter mounting opening 81c is ensured.

According to the illustrated second embodiment, the capacitor 86 and the wireless communication unit 84 are arranged side by side along the attachment/detachment direction (horizontal direction) of the wireless communication adapter 87 with respect to the electrical component housing portion 80 . As a result, the operability 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 .

According to the second illustrated embodiment, capacitor 86 and wireless communication unit 84 are positioned relative to each other via internal support member 90 . Accordingly, the capacitor 86 and the wireless communication unit 84 are compactly positioned within the electrical component housing portion 80 .

According to the second illustrated embodiment, the inner support member 90 has a first locating portion that positions the capacitor 86 on the left side (first side) and positions the wireless communication unit 84 on the right side (second side). It has a second positioning part. As a result, the capacitor 86 and the wireless communication unit 84 are positioned side by side in the horizontal direction with the internal support member 90 interposed therebetween.

In addition, 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. As shown in FIG. As a result, good attachment of the wireless communication unit 84 to the electrical component housing portion 80 is ensured. Moreover, good assembling properties of the adapter receiving portion 88 with respect to the internal support member 90 are ensured.

According to the illustrated second embodiment, the controller 85 is arranged at a position toward the rear of the electrical component housing section 80 with the mounting surface side of the control board directed forward (toward the electric motor 71). Therefore, electrical parts such as lead wires and connectors are efficiently arranged with respect to the capacitor 86, the wireless communication unit 84 and the internal support member 90. FIG.

Further modifications can be made to the second embodiment. For example, the battery 83 is attached to and removed from the battery attachment portion 82 in the front-rear direction (sliding direction), but the battery 83 may be attached and removed by sliding in the left-right direction. Moreover, although the structure which slides in the long side 83L direction of the battery 83, and attaches and removes was illustrated, it is good also as the structure which slides in the short side 83S direction, and attaches and removes. It may be a built-in battery that can be charged while attached.

Although the capacitor 86 is illustrated as the first electrical component and the wireless communication unit 84 as the second electrical component, other electrical components may be used. Although the configuration in which the capacitor 86 is positioned on the left side of the internal support member 90 and the radio communication unit 84 is positioned on the right side is illustrated, a configuration in which they are positioned on opposite sides of each other is also possible.

In the second embodiment, a two-row grooving cutter is illustrated as the portable processing machine 50, but the electric component housing portion 80 and the internal support member 90 illustrated in the portable circular saw provided with one circular cutting tool, for example, can be applied. can.

In the first and second embodiments, the extending directions of the long sides 7L and 83L of the batteries 7 and 83 and the extending directions of the long sides 30L and 80L of the electrical component storage portions 30 and 80 are exemplified. , the longitudinal direction of the electric component housing portion may be aligned with the extending direction of the short sides 7S, 83S of the batteries 7, 83.

In the first and second embodiments, the portable processing machines 1 and 50 to which the rechargeable batteries 7 and 83 are attached as power sources are exemplified. Component housings 30, 80 and internal support members 35, 90 can be applied.

In the first and second embodiments, as a portable processing machine, a trimmer is used as a portable cutting machine for woodwork for edging and grooving of wood, and a portable cutting machine for masonry is used for grooving of concrete walls. Although the two-row groove cutter is illustrated, the electric component storage units 30, 80 and the internal support members 35, 90 illustrated as examples are also applied to portable circular saws, jigsaws, etc. as portable cutting machines for cutting wood. can do.

Further, the electric component storage units 30 and 80 and the internal support members 35 and 90 illustrated are not limited to electric tools for performing various types of processing described above. The present invention can also be applied to electric working machines such as rechargeable gardening tools such as brushes and hedge trimmers, and rechargeable blowers that blow strong wind.

The portable processing machine 50 of the second embodiment is an example of a portable processing machine according to one aspect of the present disclosure. The 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 tip tool in one aspect of the present disclosure.

Controller 85 of the second embodiment is an example of a controller in one aspect of the present disclosure. The electrical component housing portion 80 of the second embodiment is an example of the electrical component housing portion in one aspect of the present disclosure. 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 surface S of the second example is an example of the same surface in one aspect of the present disclosure.

The portable processing machine 1 of the first embodiment and the portable processing machine 50 of the second embodiment are examples of electric working machines in still another aspect of the present disclosure. The battery 7 of the first embodiment and the battery 83 of the second embodiment are examples of batteries in still another aspect of the present disclosure. The cylindrical portion 2B and the bulging portion 2A of the first embodiment and the body housing 81 of the second embodiment are examples of housings in still another aspect of the present disclosure. The electric motor 10 of the first embodiment and the electric motor 71 of the second embodiment are examples of electric motors in still another aspect of the present disclosure.

The controller 31 of the first embodiment and the controller 85 of the second embodiment are examples of controllers in still another aspect of the present disclosure. The electrical component housing portion 30 of the first embodiment and the electrical component housing portion 80 of the second embodiment are examples of the electrical component housing portion in still another aspect of the present disclosure. The shift operation unit 33 of the first embodiment and the capacitor 86 of the second embodiment are examples of first electrical components in still another aspect of the present disclosure. The wireless communication adapter 34a of the first embodiment and the wireless communication adapter 87 of the second embodiment are examples of second electrical components in still another aspect of the present disclosure.

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 the present disclosure. The right side of the first embodiment and the left side of the second embodiment are examples of the first side in still another aspect of the present disclosure. The left side of the first embodiment and the right side of the second embodiment are examples of the second side in still another aspect of the present disclosure. The first wall portion 35a of the first embodiment and the pressing frame portion 90b of the second embodiment are examples of the first positioning portion in still another aspect of the present 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 still another aspect of the present disclosure.

W...Work material 1...Portable processing machine (trimmer)
2...Housing 2A...Bulging portion 2B...Cylindrical part 2R...Right halved part 2RA...Right bulging part 2RB...Right cylindrical part 2L...Left halved part 2LA...Left bulging part 2LB...Left cylinder Part 2Aa... First frame part 2Ab... Second frame part 2Ac... Window part 2Ad... Third frame part 2Ae... Opening 2S... Screw 3... Rack gear part 4... Depth scale 5... Base 5a... Insertion relief part 6 Base mounting portion 6a Thumb screw 6b Wheel gear 6c Thumb dial 6d Window 7 Battery removal button 7b Remaining capacity display 7c Rail 7L Long side 7S Short side 7D Thick side 10 Electric motor 11 Motor shaft J Motor axis 12, 13 Bearing 14 Cooling fan 15 Tip tool 20 Cover case 21 Battery mounting part 22 Rail receiving part 23 Positive terminal 24 Negative electrode terminal 25 Control terminal 26 Lock recess 30 Electrical component housing 30L Long side of housing 30S Short side of housing S Virtual surface 31 Controller 31a Capacitor 31b Lead wire 31c Connector 32 … start switch (third electrical component)
Reference numeral 32a: Operation unit 32b: Start button 32c: Standby button 32e: Board unit 33: Shift operation unit (first electric component)
33a... operation part 33b... base part 34... wireless communication unit 34a... wireless communication adapter (second electrical component) 34b... adapter receiving part 34c... cap 34d... holding arm part 34e... engaging arm part 34f Engagement portion 34g Engagement projection 35 Internal support member 35a First wall portion 35b Second wall portion (surrounding portion) 35c Stepped portions V1, V2 Gap 50 Portable processing machine ( double-row grooving cutter)
51 Base 52 Fixed cover 53 Main body support shaft 60 Processing machine main 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 72a Gear housing 73 Output shaft P Output axis 74 Cutting tool 75 Spacer 76 Fixed nut 77 Arrow (rotating direction of cutting tool 74)
80... Electric component housing portion 80L... Long side of housing portion 80S... Short side of housing portion 81... Body housing 81L... Left halved portion 81R... Right halved portion 81c... Adapter mounting opening 81d... Holding frame portion (right side)
81e... Holding frame (left side), 81f... Pressing part, 81g... Recess 82... Battery mounting part 83... Battery 83L... Long side, 83S... Short side, 83D... Thickness side 84... Wireless communication unit 85... Controllers 85a, 85b ... Holding frame portion 86 ... Capacitor (first electric component)
87...Wireless communication adapter (second electric component)
87a... Engagement portion 88... Adapter receiving portion 89... Cap 89a... Holding arm portion 89b... Engagement arm portion 89c... Engagement claw portion 89d... Engagement projection 90... Internal support member 90a... Surrounding portion 90b... Pressing frame portion 90c... Opening 90d... Pressing wall portion 90e... Pressing portion 90f... Relief portion

Claims (18)

A portable processing machine,
an electric motor housed in the housing;
a tip tool partially or entirely exposed outside the housing and rotated by the electric motor;
a controller that is installed in the housing so as to be aligned with the electric motor in the axial direction of the motor shaft and that controls the operation of the electric motor;
a first electrical component and a second electrical component that are installed in an electrical component housing portion between the controller and the electric motor;
A portable processing machine in which 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. The portable processing machine according to claim 1,
A battery having a rectangular parallelepiped shape with long sides and short sides,
the short side of the battery extends perpendicular to the axis of the motor shaft;
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,
A portable processing machine in which the first electrical component and the second electrical component are arranged side by side along the short side of the housing portion. The portable processing machine according to claim 1 or 2,
The first electrical component has a main body and an operation part provided movably with respect to the main body. A protruding portable processing machine. The portable processing machine according to any one of claims 1 to 3,
the second electrical component is detachably mounted in the electrical component housing portion through an opening formed in the housing;
A portable processing machine, wherein the housing is detachably provided with a cap that closes the opening and forms a part of the side wall of the housing. A portable processing machine according to claim 4,
A portable processing machine in which the first electrical component and the second electrical component are arranged side by side along a direction in which the second electrical component is attached to and detached from the electrical component housing portion. The portable processing machine according to any one of claims 1 to 5,
A portable processing machine in which the first electrical component and the second electrical component are mutually positioned via an internal support member. The portable processing machine according to claim 6,
The internal support member has a first positioning portion for positioning the first electrical component on a first side and a second positioning portion for positioning the second electrical component on a second side opposite to the first side. A portable processing machine with A portable processing machine according to claim 7,
The portable processing machine, wherein the second positioning portion of the internal support member includes a surrounding portion into which the second electrical component is detachably inserted. The portable processing machine according to any one of claims 1 to 8,
The controller is a portable processing machine in which the mounting surface side of the circuit component faces downward toward the electrical component housing section. The portable processing machine according to any one of claims 1 to 9,
A contact portion that contacts the workpiece is provided in a posture orthogonal to the motor shaft of the electric motor,
a window for viewing a machined portion is provided on one surface of the housing parallel to the motor shaft of the electric motor,
The mobile phone in which the first electric component and the second electric component are arranged side by side in the left-right direction toward the window when the direction of the motor shaft is defined as the vertical direction and the side on which the window is provided is defined as the front side. processing machine. The portable processing machine according to claim 10,
a third electrical component for activation is provided on the front surface of the housing;
A portable processing machine, wherein said first electrical component, said second electrical component and said third electrical component are arranged side by side on the same plane perpendicular to the axis of said motor shaft. The portable processing machine according to any one of claims 1 to 11,
the first electric component is a speed change operation unit operated when changing the rotation speed of the electric motor;
The portable processing machine, wherein the second electrical component is a wireless communication adapter that is detachably housed in the electrical component housing and performs wireless communication with an external device. A portable processing machine,
an electric motor housed in the housing;
a contact portion provided in a posture perpendicular to the motor shaft of the electric motor and in contact with a workpiece;
a battery attached to the electric motor on a side opposite to the contact portion;
a tip tool protruding from the housing toward the contact portion and rotated by the electric motor;
a controller that is installed in the housing on the battery side with respect to the electric motor and that controls the operation of the electric motor;
A portable processing machine comprising: a wireless communication adapter detachably attached to an electric component housing portion between the controller and the electric motor, and performing wireless communication with an external device. An electric working machine,
a battery;
an electric motor housed in a housing and driven by the battery;
a controller that is installed in the housing and controls the operation of the electric motor;
a first electrical component and a second electrical component that are mounted inside an electrical component housing portion in the housing;
the first electrical component and the second electrical component are positioned relative to each other via an internal support member;
The internal support member has a first positioning portion for positioning the first electrical component on a first side and a second positioning portion for positioning the second electrical component on a second side opposite to the first side. so that the three components of the first electrical component, the internal support member, and the second electrical component are arranged in a straight line. The electric working machine according to claim 14,
the first electrical component has a cylindrical shape;
The first positioning portion of the internal support member has a restricting portion extending in the longitudinal direction of the first electrical component and restricting radial displacement of the first electrical component. The electric working machine according to claim 14 or 15,
The second positioning portion of the internal support member includes an enclosing portion into which the second electrical component is detachably inserted. The electric working machine according to claim 16,
The electric operating machine, wherein the surrounding portion has a missing portion for assembly work of the second electrical component to the housing. The electric working machine according to any one of claims 14 to 17,
The housing has a halved structure that can be divided into left and right along the motor shaft direction of the electric motor,
The electric working machine, wherein the internal support member is sandwiched between a right half portion and a left half portion of the housing and positioned in the housing.

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