WO2014119116A1 - Débroussailleuse électrique - Google Patents

Débroussailleuse électrique Download PDF

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Publication number
WO2014119116A1
WO2014119116A1 PCT/JP2013/082209 JP2013082209W WO2014119116A1 WO 2014119116 A1 WO2014119116 A1 WO 2014119116A1 JP 2013082209 W JP2013082209 W JP 2013082209W WO 2014119116 A1 WO2014119116 A1 WO 2014119116A1
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WO
WIPO (PCT)
Prior art keywords
battery
electric
brush cutter
battery mounting
grip handle
Prior art date
Application number
PCT/JP2013/082209
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English (en)
Japanese (ja)
Inventor
貴洋 神谷
裕士 野尻
善文 森田
利和 右田
Original Assignee
株式会社マキタ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 株式会社マキタ filed Critical 株式会社マキタ
Publication of WO2014119116A1 publication Critical patent/WO2014119116A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
    • A01D34/90—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for carrying by the operator

Definitions

  • the present invention relates to a gardening tool used for cutting grass, and relates to an electric mower (including an electric mower) that uses a rechargeable battery pack (referred to as “battery”) as a power source.
  • a rechargeable battery pack referred to as “battery”
  • An electric rod comprising an operating rod, a rotary blade disposed at the tip of the operating rod, an electric motor that rotates the rotary blade, and a single battery mounting portion that removably attaches a rechargeable battery that supplies power to the electric motor.
  • Japanese Patent Application Laid-Open No. 2011-49 discloses a brush cutter.
  • 18V output battery 18V battery
  • 36V output for relatively large and high output models that require higher output than 18V.
  • a battery 36V battery
  • cordless is also achieved for large-sized electric tools, and 36V batteries have become widespread along with this, but 18V batteries are still the mainstream and widely spread.
  • a user of a power tool prepares a plurality of spare batteries and charges them so that they can be used (worked) continuously for a long time while replacing the battery with a single power tool.
  • the 18V battery is more widely used than the 36V battery.
  • the battery for electric tools can be reused between different electric tools having the same power supply specification. Since there are many types of 18V-specific power tools widely available, 18V batteries are much more popular than 36V batteries.
  • the present invention aims to improve the convenience and handleability of a high-power electric brush cutter by using a battery for a low-power electric brush cutter as a power source for the high-power electric brush cutter. To do.
  • the first invention includes an operating rod, a rotating blade disposed at the tip of the operating rod, an electric motor that rotates the rotating blade, and a battery mounting portion that removably attaches a rechargeable battery that feeds the electric motor.
  • the electric mower is provided with a plurality of battery attachment portions on the operation rod. According to this configuration, a plurality of low-output batteries can be used as a power source for the high-powered electric brush cutter by attaching the batteries to the plurality of battery mounting portions provided in the operating rod. Thereby, the convenience and handleability of a high-output electric brush cutter can be improved.
  • the operating rod has a grip handle portion on the base side, and includes at least one battery mounting portion on the grip handle portion. According to this structure, the convenience and handling property of the electric brush cutter can be improved by providing at least one battery mounting portion in the grip handle portion of the operating rod.
  • the plurality of battery mounting portions are grip handles in the left and right directions with respect to a plane passing through the center in the left and right direction of the grip handle portion of the operating rod based on the normal posture.
  • the center of gravity of the electric brush cutter in which the batteries are respectively attached to the plurality of battery attachment portions is configured to be within a range that is offset by a distance of 1.5 times the width in the left-right direction. According to this configuration, the weight balance of the electric mower can be improved. As a result, the workability of the electric mower can be improved.
  • 4th invention makes 2 battery attachment parts in 1st invention. According to this configuration, two batteries can be used by attaching the batteries to the two battery attachment portions.
  • the two battery attachment portions are provided on each battery attachment portion with respect to a plane passing through the center in the left-right direction of the grip handle portion of the operating rod with reference to the normal posture.
  • the center of gravity of each attached battery is configured to be positioned on the left and right. According to this configuration, the weight balance of the electric mower can be improved. As a result, the workability of the electric mower can be improved.
  • the sixth invention is the fourth or fifth invention, wherein the two battery mounting portions are configured to mount the two batteries in parallel in a direction intersecting the longitudinal direction. According to this configuration, two batteries can be arranged in a compact manner on the operation rod.
  • the operating rod is provided with a hook hooking portion for hooking the hook of the shoulder band, and at least one hook hooking portion is provided in the vicinity of the hook hooking portion.
  • the battery attachment part is provided. According to this configuration, the stability of the electric brush cutter when using the shoulder band can be improved.
  • the plurality of battery attachment portions can attach and detach a battery for an electric tool as a battery.
  • the battery for electric tools can be attached / detached to / from the plurality of battery attachment portions. For this reason, the versatility of the battery for electric tools can be improved.
  • FIG. 1 is a perspective view showing an electric mower according to Embodiment 1.
  • FIG. It is a left view which shows an electric brush cutter. It is a rear view which shows an electric brush cutter. It is a bottom view which shows an electric mower. It is a perspective view which shows the upper part of the electric brush cutter which attached the shoulder band. It is a perspective view which shows a battery. It is a bottom view which shows the battery attachment base part which removed the battery. It is a perspective view which shows the electric brush cutter which concerns on Embodiment 2.
  • FIG. It is a left view which shows an electric brush cutter. It is a rear view which shows an electric brush cutter. It is a bottom view which shows an electric mower. It is a perspective view which shows the electric brush cutter which concerns on Embodiment 3.
  • FIG. 1 is a perspective view showing an electric mower according to Embodiment 1.
  • FIG. It is a left view which shows an electric brush cutter. It is a rear view which shows an electric brush cutter. It is a bottom view which shows
  • FIG. It is a left view which shows the electric brush cutter which concerns on Embodiment 10.
  • FIG. It is a bottom view which shows the battery attachment base part which removed the battery which concerns on Embodiment 11.
  • FIG. FIG. 16 is a side view showing a battery peripheral portion according to Embodiment 12. It is a perspective view which shows the battery peripheral part which concerns on the example of a change. It is a perspective view which shows the battery peripheral part which concerns on the example of a change.
  • 14 is a side view showing a battery periphery according to Embodiment 13.
  • FIG. It is a side view which shows the battery peripheral part which concerns on the example of a change.
  • It is a side view which shows the motor housing which concerns on the example of a change.
  • 3 is a plan view showing the battery according to Embodiment 1.
  • FIG. It is a sectional side view which shows a battery.
  • Embodiment 1 will be described.
  • a hand-held electric mower is illustrated.
  • the front / rear and upper / lower directions of the electric brush cutter are based on the posture when the electric brush cutter is normally used by the user (referred to as “normal posture”).
  • the left and right of the electric brush cutter correspond to the left and right viewed from the user who uses the electric brush cutter.
  • 1 is a perspective view showing an electric mower
  • FIG. 2 is a left side view
  • FIG. 3 is a rear view
  • FIG. 4 is a bottom view.
  • the electric brush cutter 10 includes a long operation rod 12.
  • the operating rod 12 is used in a normal posture as a tilted state in which the front is lowered and the rear is raised.
  • the rear end portion of the operation rod 12 corresponds to a “base end portion” in the present specification
  • the front end portion corresponds to a “tip end portion” in the present specification.
  • a resin motor housing 14 is provided at the front end (front end) of the operation rod 12.
  • a cord holder 16 is supported at the lower part of the motor housing 14 so as to be rotatable about an axis extending in the vertical direction.
  • An electric motor 18 (see FIG. 2), which is a prime mover, is installed in the motor housing 14.
  • the output shaft of the electric motor 18 and the cord holder 16 are connected via a gear transmission mechanism (not shown).
  • the cord holder 16 is rotationally driven by the electric motor 18 through the gear transmission mechanism.
  • the cord holder 16 holds a cord-like cutter cord 20 in a wound state.
  • the front end portion of the cutter cord 20 is pulled out from the cord holder 16.
  • the cutter cord 20 cuts the vegetation by rotating at high speed together with the cord holder 16.
  • a nylon cord is used.
  • the cutter cord 20 corresponds to a “rotating blade” in this specification. Further, instead of the cutter cord 20, a tip saw cutter may be used.
  • the motor housing 14 is provided with a safety cover 22 made of resin, for example.
  • the safety cover 22 prevents vegetation, stones, and the like from scattering toward the user when cutting the vegetation with the cutter cord 20.
  • the safety cover 22 may be provided on the operation rod 12 instead of the motor housing 14.
  • the operating rod 12 has a grip handle portion 24 that is continuous at the rear end portion (base end portion).
  • the grip handle portion 24 has an oval shape extending in the front-rear direction, and the hollow portion penetrates in the left-right direction.
  • the peripheral part including the grip part in the grip handle part 24 is formed with the same or substantially the same width A (see FIGS. 3 and 4) in the front-rear direction.
  • a front grip 26 is provided on the central portion of the operation rod 12.
  • the front grip 26 has a rectangular ring shape, and a hollow portion thereof penetrates in a direction that is parallel or substantially parallel to the longitudinal direction of the operation rod 12.
  • a trigger switch 28 (see FIG. 2), which is an activation switch, is provided at the front upper portion on the inner peripheral side of the grip handle portion 24.
  • FIG. 5 is a perspective view showing the upper part of the electric brush cutter with a shoulder band attached.
  • the shoulder band 32 includes a loop-shaped band main body 34 that can be adjusted in length, and a hook 36 that is attached to the band main body 34.
  • the hook hooking portion 30 may be provided on the operation rod 12 instead of the front grip 26.
  • the hook latching part 30 should just be able to latch the hook 36 of the shoulder band 32, and may change the shape suitably.
  • a rectangular plate-shaped battery mounting base portion 50 is horizontally provided below the grip handle portion 24.
  • the left and right end portions of the battery mounting base portion 50 project symmetrically with respect to the grip handle portion 24.
  • the lower surface of the battery mounting base portion 50 is a surface on the battery mounting side.
  • Two battery mounting portions 52 are provided on the lower surface of the battery mounting base portion 50.
  • a battery 100 is detachably attached to each of the two front and rear battery attachment portions 52.
  • the electric brush cutter 10 is a cordless type electric brush cutter that uses two batteries 100 as power sources.
  • the battery mounting portion 52 of the battery mounting base portion 50 will be described later.
  • FIG. 6 is a perspective view showing the battery. 32 is a plan view, and FIG. 33 is a side sectional view.
  • the battery 100 is a rechargeable battery that can be repeatedly used by being removed from the electric brush cutter 10 (see FIGS. 1 to 4) and charged by a separately prepared charger (not shown).
  • the battery 100 is a slide detachable battery.
  • the “slide detachable battery” referred to in this specification is a type that is detachable by sliding the attachment side surface of the battery 100 with respect to the battery attachment side surface of the battery attachment portion 52 (described later). Refers to the battery.
  • a battery for an electric tool such as a screw tightener or a marnoco is used as the battery 100.
  • the battery 100 is an 18V output lithium ion battery pack in which a plurality of battery cells 103 (10 batteries are shown in FIG. 33) are accommodated in a battery case 102. As shown in FIG. The battery cell 103 is formed in a cylindrical shape. In the battery case 102, the ten battery cells 103 are accommodated in two upper and lower stages, with the longitudinal direction of the battery cell 103 facing the width direction (the front and back direction in FIG. 33).
  • the battery case 102 of the battery 100 is formed in a rectangular parallelepiped shape.
  • the length L, width W, and height H of the battery 100 are in a relationship of L> W> H.
  • the battery 100 has a length direction as a front-rear direction, a width direction as a left-right direction, and a height direction as a vertical direction.
  • the upper surface of the battery case 102 (referred to as “battery upper surface”) is the surface on the attachment side, the front surface thereof (referred to as “battery front surface”) as the surface in the attachment direction, and the rear surface (referred to as “battery rear surface”) The side surface will be described.
  • the battery case 102 has a pair of left and right rails 104, a positive side connection terminal 106, a negative side connection terminal 108, and a connector 110 for transmitting / receiving a control signal of a charger on the upper surface thereof.
  • a lock claw 112 is provided at the rear end portion on the upper surface side of the battery case 102 so as to be able to protrude and retract in the vertical direction.
  • the lock claw 112 is normally urged upward (in the protruding direction) by the spring 113, and the lock release button 114 provided on the rear surface of the battery case 102 is attached to the spring 113.
  • the battery case 102 can be retracted by performing a pushing operation against the force.
  • FIG. 7 is a bottom view showing the battery mounting base part with the battery removed.
  • the front battery mounting portion 52 will be described, and the rear battery mounting portion 52 will be described. The description about is omitted.
  • the battery attachment portion 52 is configured to be able to attach the battery 100 from the left side and detachable to the left side (see the white arrow in FIG. 7).
  • a pair of front and rear rail portions 54, a positive electrode side connection terminal 56, and a negative electrode side connection terminal 58 are provided on the lower surface side of the battery mounting portion 52.
  • a claw engaging portion 62 that is recessed upward (behind the paper surface in FIG. 7) is provided at the left end portion of the battery mounting portion 52.
  • the claw engaging portion 62 is formed to be able to engage the lock claw 112 of the battery 100.
  • the battery attachment portion 52 is a battery attachment portion for directly attaching a battery to which the battery 100 is directly attached without using a battery converter or a battery adapter.
  • the battery attachment base part 50 is provided with the battery attachment part 52, it can also be regarded as a "battery attachment part" in a broad sense.
  • the battery 100 (see FIG. 6) is attached to the battery attachment portion 52 (see FIG. 7) will be described.
  • the battery 100 On the left side of the battery mounting portion 52, the battery 100 is in a state in which the surface on the mounting side (battery upper surface) is directed upward (behind the paper surface in FIG. 7) and the surface on the mounting direction side (front of the battery) is directed rightward.
  • the pair of rail portions 104 of the battery 100 are engaged with the pair of rail portions 54 of the battery mounting portion 52, and the battery 100 is moved, that is, slid rightward.
  • the positive electrode side connection terminal 106 of the battery 100 is connected to the positive electrode side connection terminal 56 of the battery attachment portion 52, and the negative electrode side connection terminal 108 of the battery 100 is connected to the negative electrode side connection terminal 58 of the battery attachment portion 52.
  • the battery 100 is electrically connected to the battery mounting portion 52.
  • the lock claw 112 of the battery 100 is engaged with the claw engagement portion 62 of the battery attachment portion 52, whereby the battery 100 is fixed to the battery attachment portion 52.
  • This state is a state where the battery 100 is completely attached. In this way, the two batteries 100 are attached to the two battery attachment portions 52.
  • the two battery mounting portions 52 are provided so that the attaching and detaching directions of the two batteries 100 (see white arrows in FIG. 7) are parallel to the front and rear. That is, the two batteries 100 are arranged in parallel at the front and rear. The two batteries 100 are arranged in parallel in a direction (the width W direction of the battery 100) that intersects the longitudinal direction (the front-rear direction of the battery 100).
  • the two batteries 100 are electrically connected to the electric motor 18 (see FIG. 2) via the respective battery attachment portions 52. For this reason, the electric motor 18 operates with electric power (power feeding) supplied from the two batteries 100. Further, two batteries 100, that is, 18V batteries are connected in series to be used as a 36V battery. Accordingly, the electric motor 18 is operated by the 36V power source output from the two batteries 100 connected in series.
  • the lock claw 112 is disengaged from the claw engagement portion 62 of the battery attachment portion 52 by operating the lock release button 114 (see FIG. 2) of the battery 100.
  • the battery 100 is moved to the left, that is, slid. Thereby, the battery 100 can be removed from the battery mounting portion 52.
  • the two battery mounting portions 52 are provided in the left and right directions of the grip handle portion 24 in the left and right directions with respect to a single plane F1 passing through the center of the grip handle portion 24 of the operating rod 12 with respect to the normal posture.
  • the center of gravity of the electric brush cutter 10 with the batteries 100 attached to the two battery attachment parts 52 is positioned within a range R (see FIGS. 3 and 4) that is offset by 1.5 times the width A of the battery. It is configured.
  • each battery 100 attached to each battery attachment portion 52 is configured to be positioned on the left and right.
  • the electric brush cutter 10 according to the present embodiment configured as described above, by attaching the battery 100 (18V battery for low output) to each of the two battery mounting portions 52 provided in the operation rod 12, Two low-output batteries 100 can be used as a power source for the high power (rated voltage 36V) electric mower 10.
  • the convenience and handleability of the high output electric brush cutter 10 can be improved.
  • the operation rod 12 has a grip handle portion 24 that is continuous on the base side, and the grip handle portion 24 includes two battery attachment portions 52. Therefore, the convenience and handling property of the electric brush cutter 10 can be improved by providing the two battery mounting parts 52 in the grip handle part 24 of the operating rod 12.
  • the two battery mounting portions 52 are provided in the left and right directions of the grip handle portion 24 in the left and right directions with respect to a single plane F1 passing through the center of the grip handle portion 24 of the operating rod 12 with respect to the normal posture.
  • the center of gravity of the electric brush cutter 10 with the batteries 100 attached to the two battery attachment portions 52 is positioned within a range R that is offset by a distance 1.5 times the width A. Therefore, the weight balance of the electric mower 10 can be improved. As a result, the workability of the electric mower 10 can be improved.
  • the center of gravity of the electric brush cutter 10 (product) is shifted to the left or right with respect to one plane F1. Even in this case, by positioning the center of gravity within the range R that is offset by 1.5 times the width A (1.5 A) from the one plane F1 to the left or right, respectively, A good weight balance can be ensured. Furthermore, the center of gravity of the electric brush cutter 10 (product) is 0.5 times (0.5 A) the width A in the left-right direction of the grip handle portion 24 below the grip handle portion 24 with respect to one plane F1. It is good to arrange within the range (within width A) offset in the left-right direction by the distance.
  • the two battery attachment parts 52 are respectively attached to the battery attachment parts 52 with respect to one plane F1 passing through the center in the left-right direction of the grip handle part 24 of the operating rod 12 based on the normal posture.
  • the center of gravity of 100 is configured to be positioned on the left and right. Therefore, the weight balance of the electric mower 10 can be improved. As a result, the workability of the electric mower 10 can be improved.
  • the center of gravity of each battery 100 is within a range (width) offset in the left-right direction by a distance 0.5 times (0.5 A) the width A in the left-right direction of the grip handle portion 24 with respect to the one plane F1. It may be arranged within the range of A).
  • the center of gravity of each battery 100 may be arranged on one plane F1 passing through the center in the left-right direction of the grip handle portion 24 with the normal posture as a reference or in the vicinity of one plane.
  • the two battery attachment parts 52 are comprised so that the two batteries 100 may be attached in parallel in the direction which cross
  • an interval at which the user's finger can be inserted when the battery 100 is attached to or detached from the two battery mounting portions 52 for example, an average finger insertion and removal. It is preferable to set a minimum interval of 15 mm or more. If it is not necessary to put a user's finger in and out of the two batteries 100, the space between the two batteries 100 can be reduced by reducing the space between the two batteries 100. Less is better.
  • the two batteries 100 may be reduced by setting the interval between the two batteries to 15 mm or less.
  • the two battery attachment parts 52 can attach and detach the battery for electric tools as the battery 100.
  • Embodiment 2 will be described. Since the embodiments subsequent to the present embodiment are modifications to the first embodiment, the changed portions will be described, and overlapping descriptions will be omitted.
  • 8 is a perspective view showing the electric mower, FIG. 9 is a left side view, FIG. 10 is a rear view, and FIG. 11 is a bottom view.
  • the battery mounting base portion 50 in the first embodiment is disposed on the front side of the grip handle portion 24 of the operating rod 12, that is, the grip handle portion. 24 and the rear grip side of the central portion between the front grip 26 and the attachment portion of the front grip 26.
  • Embodiment 3 will be described. This embodiment is a modification of the first embodiment. 12 is a perspective view showing the electric brush cutter, FIG. 13 is a left side view, FIG. 14 is a rear view, and FIG. 15 is a bottom view.
  • first battery mounting base 51 labeled (1)
  • second battery mounting base 51 symbol, ( 2).
  • the first battery mounting base portion 51 (1) is disposed on the rear lower side of the mounting portion of the front grip 26 of the operation rod 12, that is, in the vicinity of the hook retaining portion 30.
  • the first battery mounting base 51 (1) is arranged so that the battery 100 can be mounted from diagonally upward and backward, and can be removed diagonally upward and backward (refer to the white arrow in FIG. 13). .
  • the second battery mounting base portion 51 (2) is disposed at the lower front end portion of the grip handle portion 24 of the operation rod 12.
  • the second battery mounting base 51 (2) is disposed so that the battery 100 can be mounted from the rear and can be removed rearward (see the white arrow in FIG. 13).
  • the first battery mounting base portion 51 (1) is provided in the vicinity of the hook retaining portion 30 of the operation rod 12. Therefore, the stability of the electric brush cutter 10 when using the shoulder band 32 (see FIG. 5) can be improved.
  • Embodiment 4 will be described. This embodiment is a modification of the first embodiment. 16 is a left side view showing the electric mower, and FIG. 17 is a bottom view of the same.
  • the battery mounting base 50 in the first embodiment can attach the battery 100 from the rear, and can be removed rearward. (See the white arrows in FIGS. 16 and 17). In this case, both batteries 100 are arranged in parallel on the left and right.
  • FIG. 18 is a left side view showing the electric mower.
  • the first battery mounting base 51 (1) in the third embodiment includes the grip handle portion 24 of the operating rod 12 and the front grip 26 of the operating rod 12. It is arrange
  • the first battery mounting base 51 (1) is disposed so that the battery 100 can be mounted from the rear and can be removed backward (see the white arrow in FIG. 18). Thereby, the attachment / detachment direction of the battery 100 with respect to the 1st battery attachment base part 51 (1) is made into the same direction as the attachment / detachment direction of the battery 100 with respect to the 2nd battery attachment base part 51 (2).
  • FIG. 19 is a left side view showing the electric mower
  • FIG. 20 is a rear view.
  • the battery mounting base portion 50 in the first embodiment (see FIGS. 1 to 4) is perpendicular to the rear side of the grip handle portion 24 of the operating rod 12. Is arranged.
  • the battery mounting base portion 50 is disposed so that the battery 100 can be mounted from above and can be removed upward (see white arrows in FIGS. 19 and 20). In this case, both batteries 100 are arranged in parallel on the left and right.
  • FIG. 21 is a left side view showing the electric brush cutter.
  • the first battery mounting base portion 51 (1) in the third embodiment includes the mounting portion of the front grip 26 of the operating rod 12, the grip handle portion 24, and the like. It is arrange
  • the second battery mounting base portion 51 (2) is disposed at the front end portion on the upper side of the grip handle portion 24 of the operating rod 12. Further, both battery mounting bases 51 (1) and 51 (2) are arranged so that the battery 100 can be mounted from the upper oblique rear side and can be removed from the upper diagonal rear side (in FIG. 21). , See white arrow).
  • FIG. 22 is a left side view showing the electric brush cutter.
  • the first battery mounting base 51 (1) in the third embodiment includes the mounting portion of the front grip 26 of the operating rod 12, the grip handle portion 24, and the like. It is arrange
  • the second battery mounting base 51 (2) is arranged in parallel to the rear side of the first battery mounting base 51 (1) on the rear lower side of the front side of the grip handle 24 of the operating rod 12. Is arranged.
  • both battery mounting bases 51 (1) and 51 (2) are arranged so that the battery 100 can be mounted obliquely from the rear and obliquely downward, and conversely, the battery 100 can be removed obliquely backward and downward (in FIG. 22). , See white arrow).
  • the electric mower 10 when the electric mower 10 is placed on the ground 38 in a state where the battery 100 is attached to each of the base portions 51 (1) and 51 (2), the removal direction of the batteries 100 is removed. The side end is in contact with the ground 38 (see the two-dot chain line 100 in FIG. 22). Thereby, the mounting state of the electric mower 10 can be stabilized.
  • FIG. 23 is a left side view showing the electric mower.
  • both battery mounting base portions 51 (1) and 51 (2) in the third embodiment are gripped by the mounting portion of the front grip 26 of the operating rod 12.
  • the operation rod 12 is arranged in a column shape along the longitudinal direction.
  • Both battery mounting bases 51 (1) and 51 (2) are arranged so that the battery 100 can be mounted obliquely from the rear and obliquely upward, and conversely, the battery 100 can be removed obliquely backward and downward (in FIG. 23, white See the drop arrow).
  • FIG. 24 is a left side view showing the electric mower.
  • both battery mounting base parts 51 (1) and 51 (2) in the third embodiment On the lower side, they are arranged in a column along the longitudinal direction of the operation rod 12.
  • Both battery mounting bases 51 (1) and 51 (2) are arranged so that the battery 100 can be mounted obliquely from the rear and obliquely upward, and conversely, the battery 100 can be removed obliquely backward and downward (in FIG. 23, white See the drop arrow).
  • both battery mounting base portions 51 (1) and 51 (2) are provided at the rear lower side of the mounting portion of the front grip 26 of the operating rod 12, that is, in the vicinity of the hook retaining portion 30 (see FIG. 5) Is arranged. Therefore, the stability of the electric brush cutter 10 when using the shoulder band 32 (see FIG. 5) can be further enhanced.
  • FIG. 25 is a bottom view showing the battery mounting base part with the battery removed.
  • the present embodiment is a plate that urges the battery 100 attached to the back side (right side) in the battery attachment direction of the battery attachment portion 52 in the first embodiment (see FIG. 7) in the removal direction.
  • An elastic member 64 such as a spring is provided.
  • the battery 100 is attached to the battery attachment portion 52 using the elastic deformation of the elastic member 64.
  • the lock release button 114 see FIG. 2 is operated when removing the battery 100, the battery 100 is pushed out in the removal direction (leftward) by the elastic restoring force of the elastic member 64.
  • FIGS. 27 and 28 are perspective views showing the periphery of the battery.
  • the product electric mower
  • FIGS. 27 and 28 are perspective views showing the periphery of the battery.
  • two front and rear display units 66 for displaying the remaining capacity of each battery are provided on one side of the battery mounting base unit 50 of the first embodiment (see FIG. 2).
  • a display 65 provided is arranged.
  • Each display unit 66 of the display unit 65 displays the remaining capacity with a plurality of bars.
  • a display button 67 provided on the display unit 65 the remaining capacity of the battery 100 is displayed. Displayed when the lamp is lit.
  • Each display unit 66 of the display device 65 corresponds to each battery 100. That is, the front indicator 65 corresponds to the front battery 100, and the rear indicator 65 corresponds to the rear battery 100.
  • the indicator 65 is adjacent to one side (left side) of the operation rod 12 of the third embodiment (see FIG. 8) and adjacent to one side of the battery mounting base 50. You may arrange so that. Further, as shown in FIG. 28, it is desirable that the indicator 65 is disposed on the upper surface side of the operation rod 12 which is the upper surface side of the product when the product is used.
  • the user can know the remaining capacity of each battery 100 from the display of each display unit 66 of the display device 65, and can also know the abnormality (failure, discharge, etc.) of each battery 100.
  • each display unit 66 corresponding to each battery 100 of the remaining battery capacity notification means corresponds to the position of each battery 100 at a position that is visible to the user when the electric brush cutter 10 is used. Therefore, the user can easily know the remaining capacity of each battery 100.
  • the indicator 65 corresponds to “battery remaining capacity notifying means” for displaying the remaining capacity of the battery 100. Further, for example, when both batteries 100 are arranged on the left and right as in the fourth embodiment (see FIGS. 16 and 17) and the sixth embodiment (see FIGS. 19 and 20), the display 65 may be arranged so that both display portions 66 are arranged side by side. The indicator 65 may be disposed on the motor housing 14. Further, the battery remaining capacity notifying means is not limited to the indicator 65 that displays the remaining capacity with a plurality of bars, but may be displayed in color, or may be notified by blinking speed, sound, or the like. In addition, when each battery 100 has a remaining capacity lower than a predetermined value (when the drive is stopped), a function (blinking of a lamp, red display) indicating which battery 100 is the cause may be provided.
  • FIG. 29 is a side view showing the battery periphery
  • FIG. 30 is a side view showing the motor housing
  • FIG. 31 is a side view showing the battery periphery.
  • the battery controller may be integrated with the motor controller that controls the driving state of the electric motor 18 (processing is performed by a single microcomputer), or may be separate from the motor controller (processing is performed by a separate microcomputer). However, it is desirable to be integrated with the motor controller from the viewpoint of reducing the occupied space and wiring.
  • a battery controller 70 is disposed in the battery mounting base 50 of the first embodiment (see FIG. 2).
  • the battery controller 70 be disposed in the vicinity of the battery 100 from the viewpoint of reducing wiring.
  • the battery controller 70 can be arranged in the motor housing 14. In this case, it is usually desirable to arrange the battery controller 70 to be exposed to an air flow generated by a fan attached to the output shaft 18a of the electric motor 18. Thereby, the battery controller 70 which generates heat can be cooled. In this case, either an air passage that starts from an intake hole formed in the motor housing 14 and leads to a fan of the electric motor 18, or an air passage that starts from the fan of the electric motor 18 and leads to an exhaust hole formed in the motor housing 14. It is desirable to arrange the battery controller 70 in the middle of the passage. Furthermore, it is desirable that the battery controller 70 be disposed in the vicinity of the electric motor 18 that is more easily cooled by the air flow.
  • the battery controller 70 may be arranged in the operation rod 12. In this case, it is desirable that the battery controller 70 be arranged in the vicinity of the grip handle portion 24 of the operating rod 12. Further, the battery controller 70 may be disposed in the grip handle portion 24.
  • the number of battery mounting portions 52 of the operating rod 12 is not limited to two, and may be three or more.
  • the battery is not limited to the power tool battery, and a dedicated battery may be used.
  • a 24V battery, a 14.4V battery, a 10.8V battery, or the like may be used as the battery.
  • the battery is not limited to a slide detachable battery, but may be a so-called pluggable battery in which the battery is inserted into and removed from the hollow part of the battery mounting part 52 formed in a cylindrical shape.
  • the said embodiment showed the example which used the same battery in multiple numbers, you may use a battery with a different volume and a different weight as a some battery.
  • the shape of the grip handle portion 24 of the operating rod 12 is not limited to an annular shape, and may be changed as appropriate, such as a C-shaped annular shape that is partially open, a rectangular frame shape, or the like.
  • a grip handle portion 24 formed separately may be attached to the operation rod 12.
  • the front grip 26 corresponds to a grip portion gripped by an operator when working, and thus can be regarded as a part of the operation rod 12. For this reason, you may provide the battery attachment part 52 in the front grip 26.
  • the battery arrangement is not limited to the embodiment.
  • the plurality of batteries can be arranged in parallel, in a column, or in a distributed manner in any part of the operating rod 12 (including the grip handle portion 24).
  • at least one battery may be disposed in the motor housing 14.
  • what is necessary is just to set the battery attachment part 52 according to arrangement
  • the attachment / detachment direction of the plurality of batteries may be the same direction or different directions.
  • the orientation of the surfaces on the mounting side of the plurality of batteries may be the same direction or different directions.
  • the orientation of the surfaces on the mounting side of the plurality of batteries may be the same direction or different directions.
  • the battery mounting base portions 50 and 51 may be omitted, and the battery mounting portion 52 may be provided directly on the operation rod 12 (including the grip handle portion 24).
  • the battery 100 may be protected by providing a surrounding member that covers the periphery of the direction in which the battery 100 is to be moved. In this case, it is desirable to close the opening on the side of the surrounding member opposite to the opening for attaching / detaching the battery 100. Further, as illustrated in the eleventh embodiment (see FIG. 25), when the elastic member 64 that urges the battery 100 in the removal direction is provided in the battery attachment portion 52, the battery 100 can be easily removed. .

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
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Abstract

L'invention concerne une débroussailleuse (10) électrique comprenant un arbre d'actionnement (12), un fil de coupe (20) positionné au niveau de l'extrémité avant de l'arbre d'actionnement (12), un moteur électrique (18) qui entraîne en rotation le fil de coupe (20), et des parties de fixation de batterie auxquelles des batteries rechargeables (100), qui alimentent en énergie le moteur électrique (18), peuvent être fixées de manière amovible. Deux parties de fixation de batterie sont prévues sur une partie poignée de préhension (24) de l'arbre d'actionnement (12).
PCT/JP2013/082209 2013-02-01 2013-11-29 Débroussailleuse électrique WO2014119116A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-018858 2013-02-01
JP2013018858A JP2014147355A (ja) 2013-02-01 2013-02-01 電動刈り払い機

Publications (1)

Publication Number Publication Date
WO2014119116A1 true WO2014119116A1 (fr) 2014-08-07

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JP (1) JP2014147355A (fr)
WO (1) WO2014119116A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019075333A3 (fr) * 2017-10-13 2019-09-12 Mtd Products Inc Outil à main
USD871184S1 (en) 2017-12-06 2019-12-31 Husqvarna Ab Power head with tool attachment interface
US11026367B2 (en) 2018-08-20 2021-06-08 Suzhou Cleva Precision Machinery AND Technology Co., Ltd. Garden tools

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6454522B2 (ja) * 2014-11-19 2019-01-16 株式会社マキタ 作業機
JP7132795B2 (ja) * 2018-08-28 2022-09-07 株式会社マキタ 高圧洗浄機
JP7199273B2 (ja) * 2019-03-22 2023-01-05 株式会社マキタ 作業機

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02116919U (fr) * 1989-03-04 1990-09-19
JPH06507783A (ja) * 1991-03-01 1994-09-08 リョービ　アウトドアー　プロダクツ バッテリ駆動のライン草刈機
JP2008000067A (ja) * 2006-06-22 2008-01-10 Ito Denki Kk 草刈り機
JP2010200673A (ja) * 2009-03-03 2010-09-16 Hitachi Koki Co Ltd 電動作業機
JP2011161603A (ja) * 2010-02-12 2011-08-25 Makita Corp 複数のバッテリパックを電源とする電動工具
JP2012055195A (ja) * 2010-09-06 2012-03-22 Maruyama Mfg Co Ltd 携帯式作業機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02116919U (fr) * 1989-03-04 1990-09-19
JPH06507783A (ja) * 1991-03-01 1994-09-08 リョービ　アウトドアー　プロダクツ バッテリ駆動のライン草刈機
JP2008000067A (ja) * 2006-06-22 2008-01-10 Ito Denki Kk 草刈り機
JP2010200673A (ja) * 2009-03-03 2010-09-16 Hitachi Koki Co Ltd 電動作業機
JP2011161603A (ja) * 2010-02-12 2011-08-25 Makita Corp 複数のバッテリパックを電源とする電動工具
JP2012055195A (ja) * 2010-09-06 2012-03-22 Maruyama Mfg Co Ltd 携帯式作業機

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019075333A3 (fr) * 2017-10-13 2019-09-12 Mtd Products Inc Outil à main
USD871184S1 (en) 2017-12-06 2019-12-31 Husqvarna Ab Power head with tool attachment interface
US11026367B2 (en) 2018-08-20 2021-06-08 Suzhou Cleva Precision Machinery AND Technology Co., Ltd. Garden tools

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