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WO2014119175A1 - Electric blower - Google Patents

Electric blower Download PDF

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Publication number
WO2014119175A1
WO2014119175A1 PCT/JP2013/084347 JP2013084347W WO2014119175A1 WO 2014119175 A1 WO2014119175 A1 WO 2014119175A1 JP 2013084347 W JP2013084347 W JP 2013084347W WO 2014119175 A1 WO2014119175 A1 WO 2014119175A1
Authority
WO
WIPO (PCT)
Prior art keywords
blower
battery pack
attached
handle
electric
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2013/084347
Other languages
French (fr)
Japanese (ja)
Inventor
次郎 小田
英明 杉浦
悠貴 小出
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Makita Corp
Original Assignee
Makita Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Makita Corp filed Critical Makita Corp
Publication of WO2014119175A1 publication Critical patent/WO2014119175A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
    • A01G20/40—Apparatus for cleaning the lawn or grass surface
    • A01G20/43—Apparatus for cleaning the lawn or grass surface for sweeping, collecting or disintegrating lawn debris
    • A01G20/47—Vacuum or blower devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to an electric blower that is driven by a rechargeable battery pack and used to blow off dead leaves on the ground.
  • Japanese Unexamined Patent Application Publication No. 2011-163300 discloses a technique related to an electric blower in this technical field.
  • This blower is a blower provided with an elongated tubular nozzle 13 and capable of blowing dead leaves and the like by a wind blown from the tip of the nozzle 13.
  • a battery pack of an electric device is provided with an output voltage of 18V or 36V, for example.
  • 18V output battery packs are mainly used for hand-held electric devices that are relatively small and have a small output. In the case of relatively large (high output) electric devices that require higher output, the larger 36V is used. An output battery pack is used.
  • battery packs for electric appliances can be reused between multiple types of electric appliances with the same power supply specifications.
  • the 18V battery packs are much more popular than the 36V battery packs because there are many types of 18V-specific electric devices that are widely used.
  • An electric blower obtained from one aspect of the present invention is provided with an electric motor that generates a rotational movement, provided on the front side of a housing with a nozzle provided in a relatively reciprocating manner so as to be able to mow between branches and leaves.
  • a conversion mechanism that converts this rotational movement into a relative reciprocating movement of the nozzle is provided in the housing.
  • the electric blower is provided with a handle extending in the front-rear direction for gripping the user when holding the blower in his / her hand.
  • the electric blower also includes a plurality of attachment portions to which separate chargeable battery packs can be attached to the housing, and the electric motor is driven by the electric power of the plurality of battery packs attached to the attachment portions. Is done.
  • the plurality of attachment portions are arranged such that the center of gravity of the entire blower including the attached battery pack is at the center of the handle grip width. It is arranged so as to be within a distance of 1.5 W on both the left and right sides from the surface. This stabilizes the balance when holding the handle and carrying the blower.
  • the center of gravity of each attached battery pack is preferably within a distance of 1.5 W on both the left and right sides from the center plane of the handle grip width.
  • the plurality of attachment portions are arranged so that when the blower is placed on a horizontal surface, the lower surface of the blower and the attached battery pack can be grounded to the horizontal surface at at least two places. The Thereby, when placing the blower on the ground or the like, the posture can be stabilized because it can be placed in contact with at least two places including the heavy battery pack. Further, it is desirable that the position of the center of gravity of the entire blower is located between the lowermost part of the blower and the battery pack in the front-rear direction.
  • the plurality of attachment portions are arranged such that the attached battery pack is located behind the lowermost portion of the blower in the front-rear direction and passes through the lowermost portion in the vertical direction. It arrange
  • the plurality of attachment portions are arranged so that the battery pack can be attached by moving the battery pack in an adjacent position and in the same direction. Thereby, a battery pack can be attached and detached easily.
  • FIG. 8 is a cross-sectional view of the battery pack of FIG. 7 taken along line VIII-VIII. It is a rear view of the blower concerning a 2nd embodiment. It is a bottom view of the main-body part of the blower concerning 3rd Embodiment.
  • This type of blower 10 is provided with an elongated tubular nozzle 13 as shown in FIG. 1 on the front side (back side as viewed from the user) of the housing 11 of the main body 10b, and the main body 10b is supported by a hand and freely moved.
  • dead leaves and the like can be blown off by the air blown from the tip of the nozzle 13.
  • the nozzle 13 of this embodiment is generally linear, and only the tip is bent upward.
  • the blower 10 normally uses the nozzle 13 obliquely downward, but in this specification, the direction in which the nozzle 13 extends toward the tip will be described as the front.
  • the blower 10 is rotated by the electric power of the attached battery packs B1 and B2, and sends a wind to the nozzles (volute) 43 (see also FIG. 5).
  • An electric motor 41 that rotationally drives the fan 43 is provided in the housing 11.
  • FIG. 2 shows these positions virtually. Since specific structures of the motor 41 and the fan 43 can be known, a detailed description is omitted here.
  • the blower body housing 11 of this embodiment has a rounded shape as a whole, but generally has the longest front and back and the shortest left and right.
  • the motor 41 and the fan 43 are of a horizontal type with the vertical direction as an axis.
  • the housing 11 has the projecting portion 11b that projects to the left and right sides so that at least the diameter of the fan 43 can be accommodated, although the housing 11 is shortest (thin) in the left-right direction as described above.
  • An intake port 15 for taking in air from the outside is opened in a lower portion of the fan 43 in the housing 11.
  • the intake port 15 is provided on the side surface of the housing as shown in FIG. 2 and the lower surface of the housing 11 as shown in FIG. 5, and communicates with the fan case that houses the fan 43.
  • the nozzle 13 is attached to the front portion of the housing 11 so as to communicate with the fan case as indicated by a broken line in FIG.
  • the wind sent out by the fan 43 flows into the nozzle 13 from the main body 10b side as shown by an arrow in FIG.
  • the blower 10 is provided with a handle 21 to be gripped when the user holds the blower 10 in his / her hand, as shown in FIG.
  • the handle 21 includes a grip 21 g that extends in the vertical direction (that is, generally in the front-rear direction) when viewed from above.
  • the handle 21 is also provided with a switch button 21s for switching on / off the operation of the electric motor 41 as shown in FIG.
  • the handle 21 of this embodiment is formed in a loop shape as shown in FIG. 1, and a part thereof is a grip portion 21g.
  • the handle 21 has a loop formed by opening a hole in the left-right direction in the housing 11, and a grip portion 21 g is formed above the hole. Therefore, the handle 21 constitutes a part of the housing 11.
  • the handle 21 does not necessarily have a closed loop shape, and may be a cantilevered handle having an interrupted end.
  • the housing 11 of the blower main body 10b is provided with a plurality of attachment portions 31 and 32 to which separate battery packs B1 and B2 can be attached.
  • the battery packs B1 and B2 are typical batteries in which a plurality of rechargeable battery cells C are accommodated in a case Bc to achieve a predetermined output as shown in FIG.
  • FIG. 8 shows a battery pack B1 containing ten battery cells C as an example.
  • the battery cell C is, for example, a lithium ion battery, but may be another type of battery as long as it is a rechargeable secondary battery.
  • the battery packs B1 and B2 can be repeatedly used as a power source for the blower 10 by being removed from the blower 10 and charged by a separately prepared charger.
  • the electric power of the battery packs B1 and B2 attached to the attachment portions 31 and 32 is supplied to the electric motor 41 mainly through the power supply circuit.
  • the battery packs B1 and B2 of the present embodiment have an 18V output as an example.
  • the battery packs B1 and B2 are attached to the attachment portions 31 and 32, the battery packs B1 and B2 are connected in series by a power supply circuit to substantially realize a 36V output. That is, the electric motor 41 is a motor having a rated voltage of 36 V that is operated by a 36 V power source by the two battery packs B1 and B2 connected in series.
  • the low-power 18V battery packs B1 and B2 can be effectively used, and the convenience and handleability of the high-output blower 10 can be further enhanced.
  • an 18V battery pack that is currently widely used including a spare battery pack or the like, can be used, so that the high-output blower 10 with a 36V specification can be used without separately purchasing a 36V battery pack. Therefore, a remarkable effect can be obtained in that the cost of the cutting work can be reduced and the workability can be improved.
  • Each attachment part 31 and 32 of this embodiment is formed so that it can attach especially the battery pack B1 of a slide attachment type as shown in FIG. 6 as one form of a battery pack. Since the two battery packs B1 and B2 have the same form, and the two attachment parts 31 and 32 have substantially the same form, the attachment part 31 and the attachment part 31 are representatively attached. A description will be given using the battery pack B1.
  • the mounting portion 31 is provided with two parallel rails 31a and positive and negative connection terminals 31b and 31c.
  • the battery pack B1 is provided with two parallel rails Bb on one surface of the case Bc as shown in FIG. Between the rails Bb, positive and negative connection terminals Bd and Be are provided.
  • the battery pack B1 By sliding and engaging the rail Bb of the battery pack B1 along the rail 31a of the attachment portion 31, the battery pack B1 can be mechanically attached to the blower body 10b and can be removed by the reverse operation. . Further, the positive and negative connection terminals 31b and 31c are respectively connected to the positive and negative connection terminals Bd and Be of the battery pack B1, whereby the battery pack B1 is electrically connected to the power supply circuit of the blower body 10b.
  • the battery pack B1 is provided with a lock claw Bg for locking the battery pack B1 in the attached state with respect to the attachment portion 31 so as to be able to advance and retreat from the surface on which the rail Bb of the case Bc is provided.
  • the attachment portion 31 is provided with a concave claw engagement portion 31d for engaging the lock claw Bg of the battery pack B1 and locking the battery pack B1 in the attachment state.
  • the battery pack B1 has a lock release button Ba for retreating the lock claw Bg into the case and releasing the engagement state of the attachment portion 31 with the claw engagement portion 31d. It is provided on the surface adjacent to the surface on which the claw Bg is provided.
  • a biasing member 31e such as a leaf spring for biasing the battery pack B1 attached to the attachment portion in the removing direction is provided.
  • FIGS. 1 to 6 Two attachment portions are provided downward on the lower side of the rear portion of the housing 11 of the main body 10b.
  • One mounting portion 31 is disposed on the front side and the other mounting portion 32 is disposed adjacent to the rear side, and the rail 31a of each mounting portion 31 is provided in the left-right direction as shown in FIG. Yes. 5, the battery pack B1 can be attached to the attachment portion 31 by moving the battery pack B1 from the left to the right (attachment direction) of the main body 10b with respect to the attachment portion 31 as indicated by a white arrow. .
  • the battery pack B1 is removed from the mounting portion 31 by releasing the locked state of the battery pack B1 and moving the battery pack B1 from the right to the left (removing direction) of the main body 10b with respect to the mounting portion 31. be able to. Since the attaching portion 31 is provided with a biasing member 31e that biases the battery pack B1 attached as described above in the removing direction, the battery packs B1 and B2 are automatically automatically to some extent just by releasing the lock in the attached state. Slide and remove easily.
  • the first mounting portion 31 is disposed on the left side
  • the other mounting portion 32 is disposed on the right side
  • the mounting direction of the battery packs B1 and B2 is the front-rear direction.
  • the third embodiment shown in FIG. 10 differs from the second embodiment in that the attachment direction of the battery packs B1 and B2 is inclined in a V shape. Since the attachment portions 31 and 32 of the first to third embodiments are arranged adjacent to each other in this manner, the attachment / removal work is facilitated. In particular, in the first and second embodiments, since the mounting direction is the same, the operation is easier. It is desirable that there is a space between the two battery packs B1 and B2 that allows the user to insert a finger.
  • the space is preferably about 15 mm or more.
  • the third embodiment has a V-shaped gap between the battery packs B1 and B2, so that the battery packs B1 and B2 can be pinched with fingers, and attachment and removal operations are easy.
  • the two attachment portions 31 and 32 are arranged so that the distance between the two battery packs B1 and B2 is close to less than 15 mm. It is preferable to install.
  • the two battery packs B1 and B2 attached are close to each other. Therefore, the overall shape of the blower main body 10b including the battery packs B1 and B2 can be spatially compactized.
  • the arrangement form of the attachment portions 31 and 32 is also conceivable.
  • two mounting portions are provided symmetrically one on each of the left and right side surfaces of the housing 11. Only the left attachment 31 is shown in the figure.
  • the blower body 10b with the battery pack B1 attached is arranged.
  • the battery pack B1 is attached in the lateral direction from the rear to the front in any of the embodiments, but the orientation of the attachment surface may be lateral as shown in FIG. 11 or upward as shown in FIG.
  • the orientation of the mounting surface is the left and right sides of the housing 11, but the mounting direction is as shown in FIG. As shown, the direction is inclined obliquely backward.
  • the two attachment portions 31 and 32 are both provided at the rear end of the housing 11. Although only one side is shown in the figure, the two attachment portions 31 and 32 are arranged adjacent to each other on the left and right as in the second embodiment.
  • the attachment direction may be a vertical direction from top to bottom as shown in FIG. 15, or may be inclined obliquely forward as shown in FIG.
  • blower and battery pack center of gravity The blower 10 and the battery packs B1 and B2 are heavy for the user considering that the blower 10 is held by hands and cleaning the dead leaves on the ground. It is important to consider.
  • the battery pack attachment portions 31 and 32 are arranged at appropriate positions (or by appropriately changing the weight balance of other members), and thus the center positions of the battery packs B1 and B2 attached. It is desirable that the center of gravity position of the entire blower 10 including this battery pack be within the following range.
  • the center of gravity G of the entire blower 10 including the attached battery packs B1 and B2 is either left or right from the center plane MP of the lateral width (grip width) of the grip portion 21g of the handle 21. It may be shifted to the side. In the first and second embodiments shown in FIGS. 4 and 9, the center of gravity G is actually shifted to the left as an example. In particular, when the grip width dimension of the handle 21 is W, the center of gravity G of the entire blower 10 is preferably within a distance of 1.5 W on the left and right sides from the center plane MP of the grip width.
  • the center-of-gravity position G is within a distance of 0.5 W on both the left and right sides (that is, within or directly below the grip portion 21g). In this way, when the handle 21 is held and the blower 10 is held, it is easy to balance the whole and the workability is improved.
  • the center of gravity of each of the attached battery packs B1 and B2 may also be shifted to the left or right side from the center plane MP of the grip width of the handle 21.
  • the center of gravity positions of the battery packs B1 and B2 are on the left side and the right side, respectively, with respect to the center plane MP of the handle grip width.
  • the center of gravity of each battery pack B1, B2 is preferably within a distance of 1.5 W on both the left and right sides from the center plane MP of the grip width, similarly to the entire center of gravity.
  • the attached battery packs B1 and B2 are both located on the rear side of the lowermost part of the blower, and pass through this lowermost part and are parallel to the center line CL of the nozzle 13 It is arranged so as to be included on the upper side (including on the surface BP). Thereby, since the nozzle 13 extended ahead of the main body 10b does not touch the ground when placed on the ground or the like, there is little possibility of damaging the nozzle 13.
  • blower configuration As another form of a fan, as shown in FIG. 17, it is good also as a vertical type centering on the left-right direction.
  • the blower 10 may have not only a function of blowing air from the nozzle 13 but also a function of collecting dust by sucking air into the nozzle 13.
  • the arrangement of the battery packs B1 and B2 is not limited to the above.
  • one battery pack may be attached to the attachment portions provided at various positions described in the above-described embodiment.
  • an example in which two battery packs B1 and B2 having the same form are attached has been described.
  • an attachment part to which battery packs having different volumes and weights may be provided.
  • the output voltage and the number of the battery packs B1 and B2 are not limited to the above embodiment.
  • a plurality of battery packs having other output voltage specifications such as 14.4 V can be attached to serve as a power source for the electric motor having the total voltage as the rated voltage.
  • multiple battery packs owned by the user for the purpose of backup etc. are effective. Therefore, it is possible to use the blower 10 with a higher output, and thereby, the spread of the blower 10 with a higher output can be achieved while suppressing the cost of the battery pack.
  • the blower 10 may be used for a long time as a power supply circuit configuration in which a plurality of attached battery packs B1 and B2 are connected in parallel instead of in series depending on the purpose. Further, a combination of series and parallel may be used to achieve both high output and long time use.
  • the battery pack may be mounted in a plug-in type battery pack in addition to the slide mounting type as in the above-described embodiment.
  • the battery pack may be attached in such a manner that the battery pack is exposed and attached so as to be visible from the outside as in the above-described embodiment, and a cover or a cover is provided so as not to be visible from the outside.
  • Battery pack controller when a plurality of battery packs B1 and B2 are connected in series, it is desirable to include a controller that monitors and controls at least the voltage of each battery pack.
  • the controllers of the battery packs B1 and B2 may be integrated with the motor controller that controls the driving state of the motor 41 (processing is performed by one microcomputer) or may be separate (processing is performed by separate microcomputers). May be. From the viewpoints of reducing the occupied space in the housing 11 and reducing the wiring, it is desirable that the two are integrated.
  • the vicinity of the terminals 31b and 31c of the battery pack mounting portion 31 is desirable from the viewpoint of reducing wiring.
  • the controllers of the battery packs B1 and B2 that generate heat they are usually arranged so as to be in contact with an air flow generated by a cooling fan (different from the blower fan 43) attached to the shaft of the motor 41.
  • a cooling fan different from the blower fan 43
  • the position of the display corresponding to each battery pack is spatially related to the arrangement of the battery packs B1 and B2 visible when the user installs the battery packs B1 and B2 or when the blower 10 is used. It is desirable to be provided in a corresponding arrangement.
  • the corresponding displays 51 and 52 are also arranged side by side as shown in FIGS.
  • the corresponding displays 51 and 52 are also arranged side by side as shown in FIG.
  • the position of the visual display is desirably on the upper side of the main body 10b as shown in FIG. 19 as an example so that it can be easily seen when using the blower 10.
  • means for indicating which one of the plurality of battery packs B1 and B2 is the cause may be provided.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

An electric blower (10) is provided with a tubular nozzle (13) for blowing out air on the front side of a housing (11). A blower fan (43) that uses rotation to blow air to the nozzle (13) and an electric motor (41) that rotationally drives the blower fan are provided within the housing (11). The blower (10) comprises a handle (21) that is provided to the upper side of the housing (11), that extends in the front/back direction, and that is used for gripping when a user picks up and uses the blower (10). The blower (10) is also provided with a plurality of attachment sections (31, 32) that make it possible to individually attach separate rechargeable battery packs (B1, B2) to the housing. The electric motor (41) is driven using power from the plurality of battery packs (B1, B2) that are attached to the attachment sections (31, 32).

Description

電動ブロワElectric blower

　本発明は、充電式バッテリパックで駆動し地面の枯葉等を吹き飛ばすために用いられる電動ブロワに関する。 The present invention relates to an electric blower that is driven by a rechargeable battery pack and used to blow off dead leaves on the ground.

　特開２０１１－１６３３００号公報には本技術分野の電動ブロワに関する技術が開示されている。このブロワは、細長い管状のノズル１３を設けてこのノズル１３の先端から吹き出る風により枯葉等を吹き飛ばすことを可能としたブロワである。 Japanese Unexamined Patent Application Publication No. 2011-163300 discloses a technique related to an electric blower in this technical field. This blower is a blower provided with an elongated tubular nozzle 13 and capable of blowing dead leaves and the like by a wind blown from the tip of the nozzle 13.

　この種のブロワに限らず、電動機具のバッテリパックには、出力電圧が例えば１８Ｖや３６Ｖのものが提供されている。主として手持ちの電動機具であって比較的小型で小出力の機種には１８Ｖ出力のバッテリパックが用いられ、より高出力を要する比較的大型（高出力）の電動機具の場合にはより大型の３６Ｖ出力のバッテリパックが用いられる。 Not only this type of blower but also a battery pack of an electric device is provided with an output voltage of 18V or 36V, for example. 18V output battery packs are mainly used for hand-held electric devices that are relatively small and have a small output. In the case of relatively large (high output) electric devices that require higher output, the larger 36V is used. An output battery pack is used.

　近年、高出力の電動機具についてもコードレス化が図られ、これに伴って大型の３６Ｖバッテリパックが普及してきているが、依然としてより小型の１４．４Ｖバッテリパックや１８Ｖバッテリパックが主流であり広く普及している。また、通常電動機具の使用者は予備バッテリパックを複数個用意して、これを作業と並行して充電しておくことにより、バッテリパックを取り替えながら一台の電動機具で長時間連続して作業できるようにしている。この点でも、大型の３６Ｖバッテリパックよりも小型の１８Ｖバッテリパックの方が広く普及している。 In recent years, high-powered electric devices have been made cordless, and along with this, large 36V battery packs have become widespread. However, smaller 14.4V battery packs and 18V battery packs are still the mainstream and widely spread. is doing. Ordinarily, a user of an electric device prepares a plurality of spare battery packs and charges them in parallel with the work, so that a single electric device can work continuously for a long time while replacing the battery pack. I can do it. Also in this respect, a small 18V battery pack is more widely used than a large 36V battery pack.

　さらに、電動機具用のバッテリパックは電源仕様が同一である複数の種類の電動機具間で使い回しできるようになっている。１８Ｖ仕様の電動機具の機種が豊富で広く普及していることもあって、１８Ｖバッテリパックの普及度は３６Ｖバッテリパックよりも大幅に高い。 In addition, battery packs for electric appliances can be reused between multiple types of electric appliances with the same power supply specifications. The 18V battery packs are much more popular than the 36V battery packs because there are many types of 18V-specific electric devices that are widely used.

　しかしながら、従来３６Ｖバッテリパックを専用電源とする高出力の電動機具について、より広く普及している小型の１８Ｖバッテリパックを流用することができないため、使用者は高出力の電動機具専用の３６Ｖバッテリパックを用意せざるを得ず、この点でコスト高になる問題があり、また高出力の電動機具の取り扱い性をより高める余地があった。このように、比較的高出力の電動機具の電源として低出力用のバッテリパックを利用できるようにすることで、電動機具の利便性および取り扱い性を高めることが望まれる。 However, since it is not possible to divert the more widely used small 18V battery pack for the high output electric motor that uses the 36V battery pack as a dedicated power source, the user can use the 36V battery pack dedicated to the high output electric motor. However, there is a problem that the cost becomes high in this respect, and there is room for further improving the handling of the high-powered electric motor. As described above, it is desired to improve the convenience and handling of the electric device by making it possible to use the low-output battery pack as a power source for the relatively high-output electric device.

　本発明のひとつの観点から得られる電動ブロワは、枝葉等を挟んで刈り取ることができるように相対的に往復動可能に設けられたノズルをハウジングの前側に備え、回転動を発生させる電動モータとこの回転動をノズルの相対的な往復動に変換する変換機構とをハウジング内に備える。電動ブロワには、使用者が本ブロワを手に持って使用する際に握るための前後方向に延びるハンドルがハウジングの上側に設けられる。電動ブロワはまた、別個の充電可能なバッテリパックをハウジングにそれぞれ取り付けることのできる複数個の取り付け部を備え、この取り付け部に取り付けられた複数個のバッテリパックの電力によって電動モータが駆動するよう構成される。 An electric blower obtained from one aspect of the present invention is provided with an electric motor that generates a rotational movement, provided on the front side of a housing with a nozzle provided in a relatively reciprocating manner so as to be able to mow between branches and leaves. A conversion mechanism that converts this rotational movement into a relative reciprocating movement of the nozzle is provided in the housing. The electric blower is provided with a handle extending in the front-rear direction for gripping the user when holding the blower in his / her hand. The electric blower also includes a plurality of attachment portions to which separate chargeable battery packs can be attached to the housing, and the electric motor is driven by the electric power of the plurality of battery packs attached to the attachment portions. Is done.

　好ましい態様として、前記ハンドルの左右方向の握り幅の寸法をＷとしたとき、前記の複数個の取り付け部は、取り付けられたバッテリパックを含む本ブロワ全体の重心位置が前記ハンドルの握り幅の中心面から左右両側に１．５Ｗの距離の範囲内に収まるように配設される。これにより、ハンドルを握って本ブロワを携える際にバランスが安定する。また、取り付けられた各バッテリパックの重心位置もハンドルの握り幅の中心面から左右両側に１．５Ｗの距離の範囲内に収まっていることが好ましい。 As a preferred embodiment, when the size of the grip width in the left-right direction of the handle is W, the plurality of attachment portions are arranged such that the center of gravity of the entire blower including the attached battery pack is at the center of the handle grip width. It is arranged so as to be within a distance of 1.5 W on both the left and right sides from the surface. This stabilizes the balance when holding the handle and carrying the blower. The center of gravity of each attached battery pack is preferably within a distance of 1.5 W on both the left and right sides from the center plane of the handle grip width.

　別の好ましい態様として、前記の複数個の取り付け部は、本ブロワを水平面に置く際に本ブロワの最下部と取り付けられたバッテリパックとの少なくとも２箇所で該水平面に接地できるように配設される。これにより、ブロワを地面等に置く際に、重量物であるバッテリパックを含む少なくとも２箇所で接地させて置くことができるため姿勢が安定する。また、ブロワ全体の重心位置が前後方向についてブロワの最下部とバッテリパックとの間に位置していることが望ましい。 As another preferred embodiment, the plurality of attachment portions are arranged so that when the blower is placed on a horizontal surface, the lower surface of the blower and the attached battery pack can be grounded to the horizontal surface at at least two places. The Thereby, when placing the blower on the ground or the like, the posture can be stabilized because it can be placed in contact with at least two places including the heavy battery pack. Further, it is desirable that the position of the center of gravity of the entire blower is located between the lowermost part of the blower and the battery pack in the front-rear direction.

　別の好ましい態様として、前記の複数個の取り付け部は、取り付けられたバッテリパックがいずれも前後方向については本ブロワの最下部よりも後側に位置しかつ上下方向についてはその最下部を通り前記ノズルの中心線と平行な面より上側に含まれるように配設される。これにより、ブロワを地面等に置いた時にノズルが地面に触れないため、ノズルを傷つける虞が少ない。 As another preferred embodiment, the plurality of attachment portions are arranged such that the attached battery pack is located behind the lowermost portion of the blower in the front-rear direction and passes through the lowermost portion in the vertical direction. It arrange | positions so that it may be contained above the surface parallel to the centerline of a nozzle. Accordingly, since the nozzle does not touch the ground when the blower is placed on the ground or the like, there is little possibility of damaging the nozzle.

　別の好ましい態様として、前記の複数個の取り付け部はバッテリパックを隣接位置でかつ同一方向に動かして取り付けることができるように配設される。これにより、バッテリパックを容易に取り付け・取り外しすることができる。 As another preferred embodiment, the plurality of attachment portions are arranged so that the battery pack can be attached by moving the battery pack in an adjacent position and in the same direction. Thereby, a battery pack can be attached and detached easily.

第１の実施形態に係るブロワ全体の斜視図である。It is a perspective view of the whole blower concerning a 1st embodiment. 図１のブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower of FIG. 図１のブロワの本体部分の上面図である。It is a top view of the main-body part of the blower of FIG. 図１のブロワの後面図である。It is a rear view of the blower of FIG. 図１のブロワの本体部分の下面図である。It is a bottom view of the main-body part of the blower of FIG. バッテリパックの斜視図である。It is a perspective view of a battery pack. バッテリパックのケースの取り付け面を示す平面図である。It is a top view which shows the attachment surface of the case of a battery pack. 図７のバッテリパックのＶＩＩＩ－ＶＩＩＩ線での断面図である。FIG. 8 is a cross-sectional view of the battery pack of FIG. 7 taken along line VIII-VIII. 第２の実施形態に係るブロワの後面図である。It is a rear view of the blower concerning a 2nd embodiment. 第３の実施形態に係るブロワの本体部分の下面図である。It is a bottom view of the main-body part of the blower concerning 3rd Embodiment. 第４の実施形態に係るブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower which concerns on 4th Embodiment. 第５の実施形態に係るブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower which concerns on 5th Embodiment. 第６の実施形態に係るブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower concerning 6th Embodiment. 第７の実施形態に係るブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower concerning 7th Embodiment. 第８の実施形態に係るブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower concerning 8th Embodiment. 第９の実施形態に係るブロワの本体部分の左側面図である。It is a left view of the main-body part of the blower which concerns on 9th Embodiment. ファンを縦ボリュート式に変形したブロワの例を示す概略図である。It is the schematic which shows the example of the blower which deform | transformed the fan into the vertical volute type. 図２のブロワにバッテリの残容量表示を設けた変形例を示す図である。It is a figure which shows the modification which provided the remaining capacity display of the battery in the blower of FIG. 図１８とは別の位置にバッテリの残容量表示を設けた変形例を示す図である。It is a figure which shows the modification which provided the remaining capacity display of the battery in the position different from FIG. 図９のブロワにバッテリの残容量表示を設けた変形例を示す図である。It is a figure which shows the modification which provided the remaining capacity display of the battery in the blower of FIG.

　本発明を実施するための形態について、図面を参照しながら以下に説明する。図面において共通の符号を付した部位は互いに実質的に同一の機能を有する部位であるため、以下では図１～図６に示す第１の実施形態を中心に説明し、他の実施形態については差異のみを述べる。 DETAILED DESCRIPTION Embodiments for carrying out the present invention will be described below with reference to the drawings. The parts denoted by the same reference numerals in the drawings are parts having substantially the same function, and therefore, the following description will focus on the first embodiment shown in FIGS. 1 to 6 and other embodiments will be described. State only the differences.

［ブロワ本体およびノズル］
　取り付けられた充電可能なバッテリパックにより駆動し、主に地面に落ちた枯葉等を吹き飛ばすための電動ブロワの様々な例を図１～図１７に示す。この種のブロワ１０は、図１に示すような細長い管状のノズル１３を本体１０ｂのハウジング１１の前側（使用者から見て奥側）に備えており、本体１０ｂを手で支えて自由に動かしつつこのノズル１３の先端から吹き出る風により枯葉等を吹き飛ばすことができる。本実施形態のノズル１３は概して直線状であり、先端のみが上方に屈曲している。このブロワ１０は通常はノズル１３を斜め下方に向けて使用するが、本明細書ではノズル１３が先端に向けて延びる方向を前方として説明する。 [Blower and nozzle]
Various examples of an electric blower that is driven by an attached rechargeable battery pack and mainly blows off dead leaves that have fallen on the ground are shown in FIGS. This type of blower 10 is provided with an elongated tubular nozzle 13 as shown in FIG. 1 on the front side (back side as viewed from the user) of the housing 11 of the main body 10b, and the main body 10b is supported by a hand and freely moved. However, dead leaves and the like can be blown off by the air blown from the tip of the nozzle 13. The nozzle 13 of this embodiment is generally linear, and only the tip is bent upward. The blower 10 normally uses the nozzle 13 obliquely downward, but in this specification, the direction in which the nozzle 13 extends toward the tip will be described as the front.

　またこのブロワ１０は、図２に示すように、取り付けられたバッテリパックＢ１，Ｂ２の電力により回転駆動されて前記ノズルに風を送り出す送風ファン４３（ボリュート）（図５も参照）と、この送風ファン４３を回転駆動する電動モータ４１とをハウジング１１内に備えている。図２にはこれらの位置を仮想的に示す。これらモータ４１とファン４３の具体的な構成は公知のものを利用できるためここでは詳細な説明を省く。本実施形態のブロワ本体のハウジング１１は全体的に丸みを帯びた形状を有しているが、概して前後が最も長く左右が最も短い形状である。モータ４１およびファン４３は、上下方向を軸とする横型のものである。そのため、ハウジング１１は上記のように左右方向が最も短い（薄い）が、少なくともこのファン４３の直径を収容できるように左右の側方に張り出した張り出し部１１ｂを有している。ハウジング１１のうちのファン４３の下側部分には、外部から空気を取り込むための吸気口１５が開けられている。吸気口１５は、図２に示すようにハウジングの側面と、図５に示すようにハウジング１１の下面とに設けられており、ファン４３を収容するファンケースと連通する。一方で、ノズル１３は図２に破線で示すようにファンケースと連通するようにハウジング１１の前部に取り付けられている。ファン４３によって送り出された風は、図５に示す矢印のように本体１０ｂ側からノズル１３内へ流れる。 Further, as shown in FIG. 2, the blower 10 is rotated by the electric power of the attached battery packs B1 and B2, and sends a wind to the nozzles (volute) 43 (see also FIG. 5). An electric motor 41 that rotationally drives the fan 43 is provided in the housing 11. FIG. 2 shows these positions virtually. Since specific structures of the motor 41 and the fan 43 can be known, a detailed description is omitted here. The blower body housing 11 of this embodiment has a rounded shape as a whole, but generally has the longest front and back and the shortest left and right. The motor 41 and the fan 43 are of a horizontal type with the vertical direction as an axis. Therefore, the housing 11 has the projecting portion 11b that projects to the left and right sides so that at least the diameter of the fan 43 can be accommodated, although the housing 11 is shortest (thin) in the left-right direction as described above. An intake port 15 for taking in air from the outside is opened in a lower portion of the fan 43 in the housing 11. The intake port 15 is provided on the side surface of the housing as shown in FIG. 2 and the lower surface of the housing 11 as shown in FIG. 5, and communicates with the fan case that houses the fan 43. On the other hand, the nozzle 13 is attached to the front portion of the housing 11 so as to communicate with the fan case as indicated by a broken line in FIG. The wind sent out by the fan 43 flows into the nozzle 13 from the main body 10b side as shown by an arrow in FIG.

［ハンドル］
　ブロワ１０には、使用者がブロワ１０を手に持って使用する際に握るハンドル２１が図１に示すようにハウジング１１後部（使用者から見て手前側）の上側に設けられている。ハンドル２１は、図３に示すように上から見て縦向き（すなわち概して前後方向）に延びる握り部２１ｇを備えている。ハンドル２１はまた図２に示すように電動モータ４１の作動のオン・オフを切り替えるスイッチボタン２１ｓを備えている。本実施形態のハンドル２１は図１に示すようにループ状に形成されその一部を握り部２１ｇとしている。ハンドル２１はハウジング１１に左右方向に孔を空けることでループが形成されており、その孔の上側に握り部２１ｇが形成されている。したがってハンドル２１はハウジング１１の一部を構成している。なお、ハンドル２１は必ずしも閉じたループ状である必要はなく、途切れた終端を有する片持ち状のハンドルとしても良い。 [handle]
The blower 10 is provided with a handle 21 to be gripped when the user holds the blower 10 in his / her hand, as shown in FIG. As shown in FIG. 3, the handle 21 includes a grip 21 g that extends in the vertical direction (that is, generally in the front-rear direction) when viewed from above. The handle 21 is also provided with a switch button 21s for switching on / off the operation of the electric motor 41 as shown in FIG. The handle 21 of this embodiment is formed in a loop shape as shown in FIG. 1, and a part thereof is a grip portion 21g. The handle 21 has a loop formed by opening a hole in the left-right direction in the housing 11, and a grip portion 21 g is formed above the hole. Therefore, the handle 21 constitutes a part of the housing 11. The handle 21 does not necessarily have a closed loop shape, and may be a cantilevered handle having an interrupted end.

［バッテリパック］
　ブロワ本体１０ｂのハウジング１１には、図５に示すように別個のバッテリパックＢ１，Ｂ２をそれぞれ取り付けることのできる取り付け部３１，３２が複数設けられている。バッテリパックＢ１，Ｂ２は図８に示すようにケースＢｃ内に複数個の充電可能な電池セルＣを収容して所定の出力を実現した典型的なバッテリである。図８には例として１０本の電池セルＣを収容したバッテリパックＢ１を示す。電池セルＣは例えばリチウムイオン電池であるが、充電可能な二次電池であれば他の種類の電池としても良い。バッテリパックＢ１，Ｂ２は、ブロワ１０から取り外して別途用意した充電器により充電することにより、繰り返しブロワ１０の電源として使用することができる。 [Battery pack]
As shown in FIG. 5, the housing 11 of the blower main body 10b is provided with a plurality of attachment portions 31 and 32 to which separate battery packs B1 and B2 can be attached. The battery packs B1 and B2 are typical batteries in which a plurality of rechargeable battery cells C are accommodated in a case Bc to achieve a predetermined output as shown in FIG. FIG. 8 shows a battery pack B1 containing ten battery cells C as an example. The battery cell C is, for example, a lithium ion battery, but may be another type of battery as long as it is a rechargeable secondary battery. The battery packs B1 and B2 can be repeatedly used as a power source for the blower 10 by being removed from the blower 10 and charged by a separately prepared charger.

　取り付け部３１，３２に取り付けたバッテリパックＢ１，Ｂ２の電力は主として電源回路を経て電動モータ４１に供給される。本実施形態のバッテリパックＢ１，Ｂ２はひとつの例として１８Ｖ出力のものであり、取り付け部３１，３２に取り付けられると電源回路によって直列に接続されて実質的に３６Ｖ出力を実現する。すなわち電動モータ４１はこのように直列接続された２つのバッテリパックＢ１，Ｂ２による３６Ｖ電源によって動作する定格電圧３６Ｖのモータである。これにより、低出力用の１８ＶバッテリパックＢ１，Ｂ２を有効利用できるとともに、高出力のブロワ１０の利便性および取り扱い性を一層高めることができる。特に、予備バッテリパック等を含めて現在広く普及している１８Ｖバッテリパックを流用することができ、これにより新たに３６Ｖバッテリパックを別途購入することなく３６Ｖ仕様で高出力のブロワ１０を利用できる。したがって、切断作業の低コスト化および作業性の向上を図ることができる点で顕著な効果を得ることができる。 The electric power of the battery packs B1 and B2 attached to the attachment portions 31 and 32 is supplied to the electric motor 41 mainly through the power supply circuit. The battery packs B1 and B2 of the present embodiment have an 18V output as an example. When the battery packs B1 and B2 are attached to the attachment portions 31 and 32, the battery packs B1 and B2 are connected in series by a power supply circuit to substantially realize a 36V output. That is, the electric motor 41 is a motor having a rated voltage of 36 V that is operated by a 36 V power source by the two battery packs B1 and B2 connected in series. As a result, the low-power 18V battery packs B1 and B2 can be effectively used, and the convenience and handleability of the high-output blower 10 can be further enhanced. In particular, an 18V battery pack that is currently widely used, including a spare battery pack or the like, can be used, so that the high-output blower 10 with a 36V specification can be used without separately purchasing a 36V battery pack. Therefore, a remarkable effect can be obtained in that the cost of the cutting work can be reduced and the workability can be improved.

［バッテリパックの取り付け部］
　本実施形態の各取り付け部３１，３２は、バッテリパックのひとつの形態として特に図６に示すようなスライド取り付け式のバッテリパックＢ１を取り付けることができるように形成されている。なお２個のバッテリパックＢ１，Ｂ２は同一の形態を有するものであって２個の取り付け部３１，３２も実質的に同一の形態を有するため、代表して一方の取り付け部３１およびこれに取り付けるバッテリパックＢ１を用いて説明する。取り付け部３１には、図５に示すように２本の平行なレール３１ａと、正負の接続端子３１ｂ，３１ｃが設けられている。一方で、バッテリパックＢ１は図７に示すようにケースＢｃの一面に２本の平行なレールＢｂを備えている。このレールＢｂ間には正負それぞれの接続端子Ｂｄ，Ｂｅを備えている。 [Battery pack attachment]
Each attachment part 31 and 32 of this embodiment is formed so that it can attach especially the battery pack B1 of a slide attachment type as shown in FIG. 6 as one form of a battery pack. Since the two battery packs B1 and B2 have the same form, and the two attachment parts 31 and 32 have substantially the same form, the attachment part 31 and the attachment part 31 are representatively attached. A description will be given using the battery pack B1. As shown in FIG. 5, the mounting portion 31 is provided with two parallel rails 31a and positive and negative connection terminals 31b and 31c. On the other hand, the battery pack B1 is provided with two parallel rails Bb on one surface of the case Bc as shown in FIG. Between the rails Bb, positive and negative connection terminals Bd and Be are provided.

　バッテリパックＢ１のレールＢｂを取り付け部３１のレール３１ａに沿ってスライドさせて係合させることにより、バッテリパックＢ１をブロワ本体１０ｂに機械的に取り付けでき、また逆の操作により取り外し可能となっている。また、正負の接続端子３１ｂ，３１ｃにバッテリパックＢ１の正負の接続端子Ｂｄ，Ｂｅがそれぞれ接続されることにより、バッテリパックＢ１がブロワ本体１０ｂの電源回路に電気的に接続される。 By sliding and engaging the rail Bb of the battery pack B1 along the rail 31a of the attachment portion 31, the battery pack B1 can be mechanically attached to the blower body 10b and can be removed by the reverse operation. . Further, the positive and negative connection terminals 31b and 31c are respectively connected to the positive and negative connection terminals Bd and Be of the battery pack B1, whereby the battery pack B1 is electrically connected to the power supply circuit of the blower body 10b.

　図６に示すように、バッテリパックＢ１には取り付け部３１に対する取り付け状態にロックするためのロック爪ＢｇがケースＢｃのレールＢｂを設けた面から内外に進退可能に設けられている。一方で、図５に示すように、取り付け部３１にはバッテリパックＢ１のロック爪Ｂｇを係合させてバッテリパックＢ１を取り付け状態にロックするための凹形状の爪係合部３１ｄが設けられている。図７に示すように、バッテリパックＢ１にはロック爪Ｂｇをケース内に後退させて取り付け部３１の爪係合部３１ｄに対する係合状態を解除するためのロック解除ボタンＢａが、ケースＢｃのロック爪Ｂｇを設けた面の隣の面に設けられている。また、図５に示すように取り付け部に取り付けられたバッテリパックＢ１を取り外し方向に付勢する板ばね等の付勢部材３１ｅを備えている。 As shown in FIG. 6, the battery pack B1 is provided with a lock claw Bg for locking the battery pack B1 in the attached state with respect to the attachment portion 31 so as to be able to advance and retreat from the surface on which the rail Bb of the case Bc is provided. On the other hand, as shown in FIG. 5, the attachment portion 31 is provided with a concave claw engagement portion 31d for engaging the lock claw Bg of the battery pack B1 and locking the battery pack B1 in the attachment state. Yes. As shown in FIG. 7, the battery pack B1 has a lock release button Ba for retreating the lock claw Bg into the case and releasing the engagement state of the attachment portion 31 with the claw engagement portion 31d. It is provided on the surface adjacent to the surface on which the claw Bg is provided. Further, as shown in FIG. 5, a biasing member 31e such as a leaf spring for biasing the battery pack B1 attached to the attachment portion in the removing direction is provided.

［取り付け部の配設位置と取り付け・取り外し方向］
　図１～図６に示す第１の実施形態のブロワ１０では、２個の取り付け部が本体１０ｂのハウジング１１後部の下側に、下向きで設けられている。そして、ひとつの取り付け部３１が前側に、もうひとつの取り付け部３２が後側に互いに隣接して配置され、各取り付け部３１のレール３１ａは図５に示すように左右方向に向けて設けられている。図５において白抜きの矢印で示すように、取り付け部３１に対してバッテリパックＢ１を本体１０ｂの左から右（取り付け方向）に移動させることにより、バッテリパックＢ１を取り付け部３１に取り付けることができる。逆に、バッテリパックＢ１のロック状態を解除した上で、取り付け部３１に対してバッテリパックＢ１を本体１０ｂの右から左（取り外し方向）に移動させることにより、バッテリパックＢ１を取り付け部３１から取り外すことができる。取り付け部３１には前述のように取り付けられたバッテリパックＢ１を取り外し方向に付勢する付勢部材３１ｅを備えているため、取り付け状態のロックを解除するだけでバッテリパックＢ１，Ｂ２がある程度は自動的にスライドし、取り外し作業が楽である。 [Mounting location and mounting / removal direction]
In the blower 10 according to the first embodiment shown in FIGS. 1 to 6, two attachment portions are provided downward on the lower side of the rear portion of the housing 11 of the main body 10b. One mounting portion 31 is disposed on the front side and the other mounting portion 32 is disposed adjacent to the rear side, and the rail 31a of each mounting portion 31 is provided in the left-right direction as shown in FIG. Yes. 5, the battery pack B1 can be attached to the attachment portion 31 by moving the battery pack B1 from the left to the right (attachment direction) of the main body 10b with respect to the attachment portion 31 as indicated by a white arrow. . Conversely, the battery pack B1 is removed from the mounting portion 31 by releasing the locked state of the battery pack B1 and moving the battery pack B1 from the right to the left (removing direction) of the main body 10b with respect to the mounting portion 31. be able to. Since the attaching portion 31 is provided with a biasing member 31e that biases the battery pack B1 attached as described above in the removing direction, the battery packs B1 and B2 are automatically automatically to some extent just by releasing the lock in the attached state. Slide and remove easily.

　図９に示す第２の実施形態では、ひとつの取り付け部３１が左側に、もうひとつの取り付け部３２が右側に配置され、バッテリパックＢ１，Ｂ２の取り付け方向が前後方向である点で第１の実施形態と異なる。さらに、図１０に示す第３の実施形態では、バッテリパックＢ１，Ｂ２の取り付け方向がＶ字状に傾けられている点で第２の実施形態と異なる。第１～第３の実施形態の取り付け部３１，３２はこのように互いに隣接して配置されているため、取り付け・取り外しの作業が容易となる。特に第１と第２の実施形態では取り付け方向が同一であるため、作業が一層容易である。２個のバッテリパックＢ１，Ｂ２間に使用者が指を差し入れることができる間隔が空いていることが望ましく、この間隔は具体的には約１５ｍｍ以上であることが好ましい。この点で第３の実施形態はバッテリパックＢ１，Ｂ２間にＶ字状の間隔があいているため、バッテリパックＢ１，Ｂ２を指で挟むことができ取り付け・取り外しの作業がし易い。特に、体積が２００ｃｍ3以上の大型のバッテリパックＢ１，Ｂ２の場合には、逆に２個のバッテリパックＢ１，Ｂ２が間隔が１５ｍｍ未満に近接するように２個の取り付け部３１，３２を配設することが好ましい。この点、図２に示す第１の実施形態では取り付けた２個のバッテリパックＢ１，Ｂ２が近接している。したがってバッテリパックＢ１，Ｂ２を含むブロワ本体１０ｂの全体形状を空間的にコンパクトにまとめることができる。 In the second embodiment shown in FIG. 9, the first mounting portion 31 is disposed on the left side, the other mounting portion 32 is disposed on the right side, and the mounting direction of the battery packs B1 and B2 is the front-rear direction. Different from the embodiment. Furthermore, the third embodiment shown in FIG. 10 differs from the second embodiment in that the attachment direction of the battery packs B1 and B2 is inclined in a V shape. Since the attachment portions 31 and 32 of the first to third embodiments are arranged adjacent to each other in this manner, the attachment / removal work is facilitated. In particular, in the first and second embodiments, since the mounting direction is the same, the operation is easier. It is desirable that there is a space between the two battery packs B1 and B2 that allows the user to insert a finger. Specifically, the space is preferably about 15 mm or more. In this respect, the third embodiment has a V-shaped gap between the battery packs B1 and B2, so that the battery packs B1 and B2 can be pinched with fingers, and attachment and removal operations are easy. In particular, in the case of large battery packs B1 and B2 having a volume of 200 cm 3 or more, the two attachment portions 31 and 32 are arranged so that the distance between the two battery packs B1 and B2 is close to less than 15 mm. It is preferable to install. In this regard, in the first embodiment shown in FIG. 2, the two battery packs B1 and B2 attached are close to each other. Therefore, the overall shape of the blower main body 10b including the battery packs B1 and B2 can be spatially compactized.

　取り付け部３１，３２の配置形態は上述の他にも考えられる。例えば、図１１～図１４に示す第４～第７の実施形態では２個の取り付け部がハウジング１１の左右の各側面に対称的にひとつずつ設けられている。図には左側の取り付け部３１のみが表されている。このうち図１１と図１２に示す実施形態では、ハウジング１１の張り出し部１１ｂの上にバッテリパックＢ１の長辺を沿わせて配置されているため、バッテリパックＢ１を取り付けた状態のブロワ本体１０ｂが比較的コンパクトな形状となる。バッテリパックＢ１の取り付け方向は、いずれの実施形態も後方から前方に向かう横方向としているが、取り付け面の向きは図１１のように側方としても図１２のように上方としても良い。これに対し、第６、第７の実施形態においては、取り付け面の向きはハウジング１１の左右の側方であるが、取り付け方向が図１１に示すように上から下の縦方向あるいは図１２に示すように斜め後方に傾いた方向となっている。図１５，図１６に示す第８、第９の実施形態では２個の取り付け部３１，３２がいずれもハウジング１１の後端に設けられている。図には片方しか表されていないが、２個の取り付け部３１，３２は第２の実施形態と同様に左右に隣接して配置されている。取り付け方向は、図１５に示すように上から下の縦方向としても、あるいは図１６に示すように斜め前方に傾けてもよい。 Other than the above, the arrangement form of the attachment portions 31 and 32 is also conceivable. For example, in the fourth to seventh embodiments shown in FIGS. 11 to 14, two mounting portions are provided symmetrically one on each of the left and right side surfaces of the housing 11. Only the left attachment 31 is shown in the figure. Among these, in the embodiment shown in FIG. 11 and FIG. 12, since the long side of the battery pack B1 is arranged on the overhanging portion 11b of the housing 11, the blower body 10b with the battery pack B1 attached is arranged. A relatively compact shape. The battery pack B1 is attached in the lateral direction from the rear to the front in any of the embodiments, but the orientation of the attachment surface may be lateral as shown in FIG. 11 or upward as shown in FIG. On the other hand, in the sixth and seventh embodiments, the orientation of the mounting surface is the left and right sides of the housing 11, but the mounting direction is as shown in FIG. As shown, the direction is inclined obliquely backward. In the eighth and ninth embodiments shown in FIGS. 15 and 16, the two attachment portions 31 and 32 are both provided at the rear end of the housing 11. Although only one side is shown in the figure, the two attachment portions 31 and 32 are arranged adjacent to each other on the left and right as in the second embodiment. The attachment direction may be a vertical direction from top to bottom as shown in FIG. 15, or may be inclined obliquely forward as shown in FIG.

［ブロワおよびバッテリパックの重心位置］
　ブロワ１０を手に携えて地面の枯葉等の清掃作業をすることを考えればブロワ１０やバッテリパックＢ１，Ｂ２は使用者にとって重量物であり、それらの重心位置を特にハンドル２１との位置関係において考慮することは重要である。バッテリパックの取り付け部３１，３２は、その配設位置を適切に設定することにより（または他の部材の重量バランスを適切に変更することにより）、取り付けられた各バッテリパックＢ１，Ｂ２の重心位置やこのバッテリパックを含むブロワ１０全体の重心位置が以下のような範囲内となるようにすることが望ましい。 [Blower and battery pack center of gravity]
The blower 10 and the battery packs B1 and B2 are heavy for the user considering that the blower 10 is held by hands and cleaning the dead leaves on the ground. It is important to consider. The battery pack attachment portions 31 and 32 are arranged at appropriate positions (or by appropriately changing the weight balance of other members), and thus the center positions of the battery packs B1 and B2 attached. It is desirable that the center of gravity position of the entire blower 10 including this battery pack be within the following range.

　まず図４に示すように、取り付けられたバッテリパックＢ１，Ｂ２を含むブロワ１０全体の重心位置Ｇは、ハンドル２１の握り部２１ｇの左右方向の幅（握り幅）の中心面ＭＰから左右いずれかの側にずれていてもよい。図４、図９に示す第１、第２の実施形態ではこの例として実際に重心位置Ｇが左側にずれている。特に、ハンドル２１の握り幅の寸法をＷとしたとき、ブロワ１０全体の重心位置Ｇが握り幅の中心面ＭＰから左右両側に１．５Ｗの距離の範囲内に収まっていることが好ましい。さらにはこの重心位置Ｇが左右両側に０．５Ｗの距離の範囲内（すなわち握り部２１ｇの内部または真下）に収まっていればより一層好ましい。このようにすれば、ハンドル２１を握ってブロワ１０を持ったときに全体のバランスが取りやすく、作業性が向上する。 First, as shown in FIG. 4, the center of gravity G of the entire blower 10 including the attached battery packs B1 and B2 is either left or right from the center plane MP of the lateral width (grip width) of the grip portion 21g of the handle 21. It may be shifted to the side. In the first and second embodiments shown in FIGS. 4 and 9, the center of gravity G is actually shifted to the left as an example. In particular, when the grip width dimension of the handle 21 is W, the center of gravity G of the entire blower 10 is preferably within a distance of 1.5 W on the left and right sides from the center plane MP of the grip width. Furthermore, it is even more preferable that the center-of-gravity position G is within a distance of 0.5 W on both the left and right sides (that is, within or directly below the grip portion 21g). In this way, when the handle 21 is held and the blower 10 is held, it is easy to balance the whole and the workability is improved.

　また、図４に示すように、取り付けられた各バッテリパックＢ１，Ｂ２の重心位置も、ハンドル２１の握り幅の中心面ＭＰから左右いずれかの側にずれていてもよい。図９に示す第２の実施形態では、各バッテリパックＢ１，Ｂ２の重心位置がハンドルの握り幅の中心面ＭＰに対してそれぞれ左側と右側にあることが明らかである。また、各バッテリパックＢ１，Ｂ２の重心位置についても全体の重心位置と同様に握り幅の中心面ＭＰから左右両側に１．５Ｗの距離の範囲内に収まっていることが好ましい。 As shown in FIG. 4, the center of gravity of each of the attached battery packs B1 and B2 may also be shifted to the left or right side from the center plane MP of the grip width of the handle 21. In the second embodiment shown in FIG. 9, it is clear that the center of gravity positions of the battery packs B1 and B2 are on the left side and the right side, respectively, with respect to the center plane MP of the handle grip width. Also, the center of gravity of each battery pack B1, B2 is preferably within a distance of 1.5 W on both the left and right sides from the center plane MP of the grip width, similarly to the entire center of gravity.

［地面等への載置］
　第１～第３の実施形態のブロワは、図２に示すように水平面に置く際にブロワ１０の本体１０ｂの最下部と取り付けられた２個のバッテリパックＢ１，Ｂ２との３箇所で水平面に接地できる。これらの実施形態では、本体１０ｂの最下部はハウジング１１に吸気口１５が設けられている部分である。したがって、ブロワを地面等に置く際に、重量物であるバッテリパックを含む３箇所で接地させて置くことができるため姿勢が安定する。さらに、図２に示すように、取り付けられたバッテリパックＢ１，Ｂ２は、いずれもブロワの最下部よりも後側に位置し、この最下部を通ってノズル１３の中心線ＣＬと平行な面ＢＰより上側（面ＢＰ上を含む）に含まれるように配設されている。これにより、地面等に置いたときに本体１０ｂの前方に延びるノズル１３が地面に触れないためノズル１３を損傷する虞が少ない。 [Mounting on the ground, etc.]
When the blower of the first to third embodiments is placed on a horizontal plane as shown in FIG. 2, the lowermost part of the main body 10b of the blower 10 and two attached battery packs B1 and B2 are placed on the horizontal plane. Can be grounded. In these embodiments, the lowermost portion of the main body 10 b is a portion where the intake port 15 is provided in the housing 11. Therefore, when the blower is placed on the ground or the like, the posture can be stabilized because it can be placed in contact with three places including the heavy battery pack. Furthermore, as shown in FIG. 2, the attached battery packs B1 and B2 are both located on the rear side of the lowermost part of the blower, and pass through this lowermost part and are parallel to the center line CL of the nozzle 13 It is arranged so as to be included on the upper side (including on the surface BP). Thereby, since the nozzle 13 extended ahead of the main body 10b does not touch the ground when placed on the ground or the like, there is little possibility of damaging the nozzle 13.

［変形例］
　なお、本発明は上記の例示的な実施形態に限定されることなくその他各種の形態で実施できるものである。 [Modification]
Note that the present invention is not limited to the above-described exemplary embodiments, and can be implemented in various other forms.

［ブロワの形態］
　なお、ファンの別の形態として、図１７に示すように左右方向を軸とする縦型のものとしても良い。また、ブロワ１０はノズル１３から風を吹き出す機能だけでなく、逆にノズル１３に空気を吸込むことにより集塵する機能を併せ持っているものであっても良い。 [Blower configuration]
In addition, as another form of a fan, as shown in FIG. 17, it is good also as a vertical type centering on the left-right direction. The blower 10 may have not only a function of blowing air from the nozzle 13 but also a function of collecting dust by sucking air into the nozzle 13.

［バッテリパックとその取り付け部］
　バッテリパックＢ１，Ｂ２の配置形態は前記のものに限られるものではない。例えば、前述の実施形態において説明した種々の位置に設けられた取り付け部に、バッテリパックが１個づつ取り付けられるようにしてもよい。なお、前記の実施形態では、同一の形態のバッテリパックＢ１，Ｂ２を２個取り付ける例を示したが、異なる容積、重量のバッテリパックが取り付けられる取り付け部を設けてもよい。 [Battery pack and its mounting part]
The arrangement of the battery packs B1 and B2 is not limited to the above. For example, one battery pack may be attached to the attachment portions provided at various positions described in the above-described embodiment. In the above embodiment, an example in which two battery packs B1 and B2 having the same form are attached has been described. However, an attachment part to which battery packs having different volumes and weights may be provided.

　バッテリパックＢ１，Ｂ２の出力電圧、個数についても前記の実施形態に限定されない。例えば１４．４Ｖ等その他の出力電圧仕様のバッテリパックを複数個取り付けて、合計電圧を定格電圧とする電動モータの電源とすることができる。要は、より広く普及しているバッテリパックを複数個取り付けてその合計電圧を定格電圧とする電動モータの電源とすることにより、使用者が予備等の目的で所有する複数個のバッテリパックを有効に活用してより高出力のブロワ１０を利用することができ、これによりバッテリパックにかかるコストを抑制しつつ高出力のブロワ１０の普及を図ることができる。 The output voltage and the number of the battery packs B1 and B2 are not limited to the above embodiment. For example, a plurality of battery packs having other output voltage specifications such as 14.4 V can be attached to serve as a power source for the electric motor having the total voltage as the rated voltage. In short, by installing multiple battery packs that are more widely used and using them as a power source for an electric motor that uses the total voltage as the rated voltage, multiple battery packs owned by the user for the purpose of backup etc. are effective. Therefore, it is possible to use the blower 10 with a higher output, and thereby, the spread of the blower 10 with a higher output can be achieved while suppressing the cost of the battery pack.

　また、ブロワ１０は、目的によっては取り付けられた複数のバッテリパックＢ１，Ｂ２が直列ではなく並列に接続されるような電源回路構成として、長時間使用できるものとしても良い。また直列と並列とを組み合わせて、高出力と長時間使用を両立させても良い。 The blower 10 may be used for a long time as a power supply circuit configuration in which a plurality of attached battery packs B1 and B2 are connected in parallel instead of in series depending on the purpose. Further, a combination of series and parallel may be used to achieve both high output and long time use.

　また、バッテリパックの取り付け形式については、前記の実施形態のようなスライド取付式のほか、差し込み式のバッテリパックとしてもよい。バッテリパックの取り付け形態については、前記の実施形態のように外部から見えるように露出して取り付けられる形態の他、蓋やカバーを設けて外部から見えないように取り付ける形態としても良い。 In addition, the battery pack may be mounted in a plug-in type battery pack in addition to the slide mounting type as in the above-described embodiment. The battery pack may be attached in such a manner that the battery pack is exposed and attached so as to be visible from the outside as in the above-described embodiment, and a cover or a cover is provided so as not to be visible from the outside.

［バッテリパックのコントローラ］
　また、特に複数個のバッテリパックＢ１，Ｂ２を直列に接続する場合には、少なくとも各バッテリパックの電圧を監視・制御するコントローラを備えることが望ましい。バッテリパックＢ１，Ｂ２のコントローラは、モータ４１の駆動状態を制御するモータコントローラと一体（一つのマイコンで処理を行う）であってもよいし、別体（別々のマイコンで処理を行う）であってもよい。ハウジング１１内における占有空間の減少、配線の削減などの観点からは両者が一体であることが望ましい。 [Battery pack controller]
In particular, when a plurality of battery packs B1 and B2 are connected in series, it is desirable to include a controller that monitors and controls at least the voltage of each battery pack. The controllers of the battery packs B1 and B2 may be integrated with the motor controller that controls the driving state of the motor 41 (processing is performed by one microcomputer) or may be separate (processing is performed by separate microcomputers). May be. From the viewpoints of reducing the occupied space in the housing 11 and reducing the wiring, it is desirable that the two are integrated.

　バッテリパックＢ１，Ｂ２のコントローラの配置位置としては、配線の削減の観点からは、バッテリパックの取り付け部３１の端子３１ｂ，３１ｃの近傍（図２の符号４５Ａ）が望ましい。また、発熱するバッテリパックＢ１，Ｂ２のコントローラを冷却するという観点からは、通常、モータ４１の軸に取付けられる冷却ファン（前記の送風ファン４３とは異なる）により発生する空気流に接するように配置されることが望ましい。すなわち、ブロワ１０のハウジング１１を貫通する吸気孔から冷却ファンへ通じる空気通路または、冷却ファンから排気孔へ通じる空気通路のいずれかの途中に配置されることが望ましい。この場合、より冷却されやすいモータ４１の近傍（図２の符号４５Ｂ）に配置されることが望ましい。 As the arrangement positions of the controllers of the battery packs B1 and B2, the vicinity of the terminals 31b and 31c of the battery pack mounting portion 31 (reference numeral 45A in FIG. 2) is desirable from the viewpoint of reducing wiring. Further, from the viewpoint of cooling the controllers of the battery packs B1 and B2 that generate heat, they are usually arranged so as to be in contact with an air flow generated by a cooling fan (different from the blower fan 43) attached to the shaft of the motor 41. It is desirable that In other words, it is desirable to be arranged in the middle of either the air passage leading from the intake hole penetrating the housing 11 of the blower 10 to the cooling fan or the air passage leading from the cooling fan to the exhaust hole. In this case, it is desirable to arrange in the vicinity of the motor 41 that is more easily cooled (reference numeral 45B in FIG. 2).

［バッテリパックの残容量報知］
　また、特に複数個のバッテリパックＢ１，Ｂ２を直列的に接続する場合には、いずれか１つのバッテリパックＢ１，Ｂ２の故障、放電によってブロワ１０が使用できなくなる。このため、どのバッテリパックＢ１，Ｂ２の放電などにより、ブロワ１０が停止したかを知るために、各バッテリパックＢ１，Ｂ２の残容量の報知手段を設けることが望ましい。図１８から図２０には報知手段の一例として、点灯するバーの数で残容量を表す視覚的表示５１，５２が示されている。使用者への報知の方法は、このようなバーを用いる他、色、点滅速度、音で残容量を表す方法でも良い。また、報知手段は図１８から図２０に示すようなボタン５３を押したときのみに報知がなされるように構成しても良い。 [Notice of remaining battery pack capacity]
In particular, when a plurality of battery packs B1 and B2 are connected in series, the blower 10 cannot be used due to failure or discharge of any one of the battery packs B1 and B2. For this reason, in order to know which battery packs B1 and B2 are discharged, etc., the blower 10 is stopped, it is desirable to provide means for notifying the remaining capacity of each battery pack B1 and B2. 18 to 20 show visual indications 51 and 52 representing the remaining capacity by the number of bars to be lit as an example of notification means. As a method of notifying the user, in addition to using such a bar, a method of expressing the remaining capacity by color, blinking speed, and sound may be used. Further, the notification means may be configured to notify only when a button 53 as shown in FIGS. 18 to 20 is pressed.

　視覚的表示による報知の場合、各バッテリパックに対応する表示の位置は、使用者のバッテリパックＢ１，Ｂ２を取り付ける時やブロワ１０を使用する際に見えるバッテリパックＢ１，Ｂ２の配置と空間的に対応する配置で設けられることが望ましい。例えば、第１の実施形態のようにバッテリパックＢ１，Ｂ２が前後に並んで配置される場合には、対応する表示５１，５２も図１８および図１９に示すように前後に並べて配置される。また、第２の実施形態のようにバッテリパックＢ１，Ｂ２が左右に並んで配置されている場合には、対応する表示５１，５２も図２０に示すように左右に並べて配置する。なお視覚的表示の位置は、ブロワ１０を持って使用する際に視認しやすいように、例として図１９に示すような本体１０ｂの上側であることが望ましい。 In the case of notification by visual display, the position of the display corresponding to each battery pack is spatially related to the arrangement of the battery packs B1 and B2 visible when the user installs the battery packs B1 and B2 or when the blower 10 is used. It is desirable to be provided in a corresponding arrangement. For example, when the battery packs B1 and B2 are arranged side by side as in the first embodiment, the corresponding displays 51 and 52 are also arranged side by side as shown in FIGS. When the battery packs B1 and B2 are arranged side by side as in the second embodiment, the corresponding displays 51 and 52 are also arranged side by side as shown in FIG. It should be noted that the position of the visual display is desirably on the upper side of the main body 10b as shown in FIG. 19 as an example so that it can be easily seen when using the blower 10.

　なお、バッテリパックＢ１，Ｂ２が所定値を下回る残容量となった場合（駆動停止状態の場合）に、複数のバッテリパックＢ１，Ｂ２のうちのいずれが原因かを示す手段（ランプの点滅、赤色表示）を設けてもよい。
                                                                                 In addition, when the remaining capacity of the battery packs B1 and B2 becomes lower than a predetermined value (when the drive is stopped), means for indicating which one of the plurality of battery packs B1 and B2 is the cause (flashing lamp, red Display) may be provided.

Claims (8)

　枝葉等を吹き飛ばすための電動ブロワであって、
　風を噴出させるための管状のノズルをハウジングの前側に備え、
　回転により前記ノズルに風を送り出す送風ファンとこの送風ファンを回転駆動する電動モータとを前記ハウジング内に備え、
　使用者が本ブロワを手に持って使用する際に握るための前後方向に延びるハンドルが前記ハウジングの上側に設けられており、
　別個の充電可能なバッテリパックを前記ハウジングにそれぞれ取り付けることのできる複数個の取り付け部を備え、この取り付け部に取り付けられた複数個のバッテリパックの電力によって前記電動モータが駆動するよう構成されたブロワ。 An electric blower that blows off the branches and leaves
A tubular nozzle for blowing air is provided on the front side of the housing,
A blower fan that sends wind to the nozzles by rotation and an electric motor that rotationally drives the blower fan are provided in the housing.
A handle extending in the front-rear direction for gripping the user when using the blower in his / her hand is provided on the upper side of the housing,
A blower comprising a plurality of attachment portions to which separate rechargeable battery packs can be attached to the housing, and the electric motor being driven by electric power of the plurality of battery packs attached to the attachment portions. . 　請求項１に記載の電動ブロワであって、
　前記ハンドルの左右方向の握り幅の寸法をＷとしたとき、前記の複数個の取り付け部は、取り付けられたバッテリパックを含む本ブロワ全体の重心位置が前記ハンドルの握り幅の中心面から左右両側に１．５Ｗの距離の範囲内に収まるように配設されているブロワ。 The electric blower according to claim 1,
When the size of the grip width in the left-right direction of the handle is W, the plurality of attachment portions are arranged so that the center of gravity position of the entire blower including the attached battery pack is on the left and right sides from the center plane of the handle grip width. The blower is arranged so as to be within a distance of 1.5 W. 　請求項１または請求項２に記載の電動ブロワであって、
　前記の複数個の取り付け部は、本ブロワを水平面に置く際に本ブロワの最下部と取り付けられたバッテリパックとの少なくとも２箇所で該水平面に接地できるように配設されているブロワ。 The electric blower according to claim 1 or 2,
The plurality of attachment portions are arranged so that when the blower is placed on a horizontal plane, the blower can be grounded to the horizontal plane at at least two locations of the lowermost portion of the blower and the attached battery pack. 　請求項３に記載の電動ブロワであって、
　前記の複数個の取り付け部は、取り付けられたバッテリパックがいずれも前後方向については本ブロワの最下部よりも後側に位置しかつ上下方向についてはその最下部を通り前記ノズルの中心線と平行な面より上側に含まれるように配設されているブロワ。 The electric blower according to claim 3,
The plurality of attachment portions are arranged such that the attached battery pack is positioned rearward of the lowermost portion of the blower in the front-rear direction and passes through the lowermost portion in the vertical direction and is parallel to the center line of the nozzle. A blower disposed so as to be included above a flat surface. 　請求項１から請求項４までのいずれか１項に記載の電動ブロワであって、
　前記の複数個の取り付け部はバッテリパックを隣接位置でかつ同一方向に動かして取り付けることができるように配設されているブロワ。 An electric blower according to any one of claims 1 to 4, wherein
The plurality of attachment portions are blowers arranged so that the battery pack can be attached at an adjacent position and in the same direction. 　請求項１から請求項５までのいずれか１項に記載の電動ブロワであって、
　前記ハンドルの左右方向の握り幅の寸法をＷとしたとき、取り付けられた各バッテリパックの重心位置が前記ハンドルの握り幅の中心面から左右両側に１．５Ｗの距離の範囲内に収まっているブロワ。 An electric blower according to any one of claims 1 to 5,
When the handle width dimension in the left-right direction of the handle is W, the center of gravity of each battery pack attached is within a distance of 1.5 W on the left and right sides from the center plane of the handle grip width. Blower. 　請求項１から請求項６までのいずれか１項に記載の電動ブロワであって、
　取り付けられたバッテリパックを含む本ブロワ全体の重心位置が前記ハンドルの握り幅の中心面から左右いずれかの側にずれているブロワ。 An electric blower according to any one of claims 1 to 6,
A blower in which the center of gravity of the entire blower including the attached battery pack is shifted to the left or right side from the center plane of the grip width of the handle. 　請求項１から請求項７までのいずれか１項に記載の電動ブロワであって、
　取り付けられた複数個のバッテリパックの重心位置が前記ハンドルの握り幅の中心面に対して左側と右側にそれぞれ少なくとも１つずつあるブロワ。
                                                                                 An electric blower according to any one of claims 1 to 7,
A blower in which the center of gravity of a plurality of attached battery packs is at least one on each of the left side and the right side with respect to the center plane of the handle grip width.
PCT/JP2013/084347 2013-02-01 2013-12-20 Electric blower Ceased WO2014119175A1 (en)

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WO2018224985A1 (en) * 2017-06-09 2018-12-13 Husqvarna Ab Blower with improved battery cooling
WO2019062279A1 (en) * 2017-09-30 2019-04-04 南京德朔实业有限公司 Blower
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