WO2008044314A1 - Soufflante - Google Patents

Soufflante Download PDF

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Publication number
WO2008044314A1
WO2008044314A1 PCT/JP2006/320477 JP2006320477W WO2008044314A1 WO 2008044314 A1 WO2008044314 A1 WO 2008044314A1 JP 2006320477 W JP2006320477 W JP 2006320477W WO 2008044314 A1 WO2008044314 A1 WO 2008044314A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
pressure sensor
blower
pressing
blower fan
Prior art date
Application number
PCT/JP2006/320477
Other languages
English (en)
Japanese (ja)
Inventor
Keigo Egawa
Original Assignee
Shindaiwa Corporation
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 Shindaiwa Corporation filed Critical Shindaiwa Corporation
Priority to PCT/JP2006/320477 priority Critical patent/WO2008044314A1/fr
Priority to US12/445,340 priority patent/US20100086412A1/en
Publication of WO2008044314A1 publication Critical patent/WO2008044314A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • 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
    • 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
    • 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
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves

Definitions

  • the present invention relates to a blower that blows away objects such as dead leaves and twigs accumulated on the ground and cleans them, and sucks and cleans dust.
  • blower for blowing away and cleaning objects such as dead leaves and twigs accumulated on the ground
  • a blower fan provided in a casing, an engine for driving the blower fan to rotate, and a blower
  • a blower provided with a blower duct for discharging an air flow generated by a blower fan to the outside.
  • a grip portion is formed in the casing, and an operator can carry the blower with the grip portion. Then, the operator can blow away objects such as dead leaves and twigs and clean them by discharging a high-speed air flow toward the ground from the blower outlet of the blower pipe connected to the air duct.
  • the blower casing is formed with an intake port for taking outside air into the casing, and when the blower fan is rotated, the outside air sucked into the intake loca casing is rotated.
  • the fan creates a high-speed airflow.
  • a cylindrical vacuum pipe is attached to the intake port, and a net-like dust collecting bag is attached to the air duct.
  • the suction pipe dust in the vacuum pipe can be sucked and collected in the dust bag.
  • the blower can be used as a vacuum cleaner.
  • a blower includes an air feed fan provided in a casing, a drive device that rotationally drives the blower fan, and an air flow generated by the rotating blower fan.
  • a blower comprising: a blower duct for discharging the air to the outside; a dust-proof cover covered by an air inlet formed in the casing; and a drive stop mechanism for stopping the drive device.
  • the projection force provided on the cover is inserted into the mounting hole formed in the casing, so that the dust cover is attached to the casing.
  • the drive stop mechanism includes a pressure sensor provided on the casing and one end of the pressure sensor.
  • the other end is disposed in the mounting hole, and the other end is pressed by the protrusion inserted into the mounting hole, so that one end presses the detection portion of the pressure sensor.
  • the drive unit When pressure is acting on the pressure lever and pressure sensor detector, the drive unit is set to a driveable state, and the pressure acting on the pressure sensor detector is reduced. And a control unit that sets the drive device to a stop state.
  • the drive unit stops, and the rotation of the blower fan automatically stops.
  • the dust cover is removed when the suction pipe is attached to or removed from the intake port, or when blowing air. This can improve safety when the air intake is exposed to the outside, such as when it has come off.
  • control unit is configured to set the drive device to a stopped state when the pressing force acting on the pressing lever force pressure sensor is reduced, and the protruding portion extends from the mounting hole.
  • the drive unit stops when it is not completely pulled out, that is, when the dust cover is loosened.
  • the drive device is stopped before the intake port is exposed to the outside, and the rotation of the blower fan is stopped. Therefore, safety when removing the dust cover from the intake port can be improved.
  • the pressing force acting on the pressure sensor fluctuates with the removal of the dust cover, and the control unit changes the driving state of the driving device based on the fluctuation of the pressing force. Can be easily switched.
  • the intermediate portion of the press lever is exposed on the inner peripheral surface of the intake port, and the intermediate portion of the press lever is pressed by the suction pipe inserted into the intake port.
  • the lever can be configured such that one end of the lever presses the detection part of the pressure sensor.
  • the control unit switches the driving device from the stopped state to the drivable state.
  • the driving state can be easily switched.
  • FIG. 1 A diagram showing the blower of the present embodiment, and is a perspective view of a state in which a dustproof cover is closed and a front force is seen.
  • FIG. 2 is a view showing the blower of the present embodiment, and is a perspective view of the state where the dust cover is opened as viewed from the front.
  • FIG. 3 is a diagram showing a drive stop mechanism in the blower of the present embodiment, where (a) is a cross-sectional view with the dust-proof cover closed, and (b) is a cross-sectional view with the dust-proof cover open. .
  • FIG. 4 is a schematic configuration diagram showing a drive stop mechanism in the blower of the present embodiment.
  • FIG. 5 is a view showing the blower of the present embodiment, and is a perspective view of a state in which a vacuum pipe is attached as viewed from the front.
  • FIG. 6 is a diagram showing a drive stop mechanism in the blower of the present embodiment, and is a cross-sectional view with a vacuum pipe attached.
  • the front / rear / left / right direction is the direction seen from the operator when the blower is used, and corresponds to the front / rear / left / right direction shown in each figure.
  • the blower 1 of the present embodiment shown in FIG. 1 is a power blower that blows and cleans objects such as dead leaves and twigs accumulated on the ground, and sucks and cleans dust.
  • a blower fan (not shown) provided in the fan, a driving device 30 for rotationally driving the blower fan, and a blower outside 40 for discharging the air flow generated by the rotating blower fan to the outside.
  • a drive stop mechanism (not shown) for setting the drive state of the drive device 30.
  • a gripping part 50 is attached to the casing 10 and the drive device 30, and an operator can carry the blower 1 with the gripping part 50. Then, the worker can blow off dust such as dead leaves and twigs by discharging high-speed airflow toward the ground from the blower outlet of the blower pipe P1 connected to the air duct 40.
  • a cylindrical vacuum pipe P 2 suction pipe
  • Blower 1 can also be used as a vacuum tailor.
  • the casing 10 is a box having a substantially circular shape when viewed from the side, and a blower fan (not shown) is disposed at the center thereof.
  • a blower fan 20 shown in FIG. 3 has a plurality of blades 21 formed around a rotating shaft (not shown) that extends in the front-rear direction at the center of the casing 10.
  • a high-speed empty space is formed from the outer side of the casing 10 toward the inner side. It is configured to generate airflow.
  • an intake port 11 for taking outside air into the casing 10 is formed on the left side surface of the casing 10.
  • the air inlet 11 has a circular shape when viewed from the front, and is formed at a position facing a blower fan (not shown) (see FIG. 3).
  • a cylindrical air duct 40 for discharging the air flow generated by the rotating air blowing fan to the outside of the casing 10 is formed at the front portion of the casing 10.
  • the drive device 30 is disposed on the right side of the casing 10, and an engine (not shown) is housed in a box-shaped engine cover 31 attached to the right side surface of the casing 10. ing.
  • the output shaft of this engine is connected to the rotating shaft of a blower fan (not shown), and the blower fan is configured to rotate by the driving force of the engine of the drive device 30.
  • a dust-proof cover 60 is installed at the intake port 11 (see Fig. 2) of the casing 10 to prevent foreign matter from being sucked in!
  • an outer peripheral plate 62 is raised on the outer peripheral edge of the circular side plate 61 in a side view toward the casing 10.
  • a lattice-like opening 63 is formed in the side plate 61 and the outer peripheral plate 62.
  • the rear end portion of the outer peripheral plate 62 of the dustproof cover 60 is attached to the rear side of the intake port 11 on the left side surface of the casing 10 by a hinge 64.
  • the dust cover 60 can be rotated in the front-rear direction around the hinge 64 as a rotation center, and can be opened and closed with respect to the air inlet port 11! /.
  • a mounting screw 65 is provided at the front end portion of the outer peripheral plate 62 of the dustproof cover 60. As shown in FIG. 3 (a), the mounting screw 65 is provided with a knob 65b disposed on the outer surface side of the dust cover 60 and a projection 65b inserted through a through hole 66 formed in the dust cover 60. And structure A male screw is formed on the protrusion 65b. In addition, a rubber ring 65c is externally fitted to the protrusion 65b to prevent the through-hole 66 force from coming off.
  • the projection 65b of the mounting screw 65 is inserted into the mounting hole 12 (see Fig. 2) formed in the casing 10 on the front side of the air inlet 11. Will be.
  • a female thread is formed on the inner peripheral surface of the mounting hole 12.
  • the drive stop mechanism 70 shown in FIG. 3 is set to a state where the engine 32 (see FIG. 4) of the drive unit 30 can be driven, and the intake port 11
  • the control mechanism sets the engine 32 to the stop state.
  • the drive stop mechanism 70 includes a pressure sensor 71 provided in the casing 10, a pressing lever 72 in contact with the detection portion 71a of the pressure sensor 71, and a pressure And a control unit 73 (see FIG. 4) for setting the driving state of the engine 32 of the driving device 30 based on a detection signal from the sensor 71.
  • the pressure sensor 71 shown in FIG. 3 (b) is a known pressure sensor that detects a pressing force against the detection unit 71a and outputs a detection signal indicating the pressure fluctuation to the control unit 73 (see FIG. 4). Is not limited.
  • the pressure sensor 71 is disposed in a hollow portion 13 formed in the casing 10 on the front side of the air inlet 11. When this hollow portion 13 opens to the inner peripheral surface of the intake port 11, Both are in communication with the opening on the inner side of the mounting hole 12.
  • the pressure sensor 71 is arranged in the vicinity of the opening 13a on the intake port 11 side in the inner space 13.
  • the pressing lever 72 is a substantially Z-shaped member in plan view, and is disposed in the hollow portion 13 formed in the casing 10. The base end of this pressing lever 72
  • the base end portion 72a of the pressing lever 72 is disposed on the intake port 11 side in the hollow portion 13, and the front surface of the base end portion 72a is in contact with the detection portion 71a of the pressure sensor 71.
  • a through hole 72e is formed in the base end portion 72a on the inner side of the contact portion with the pressure sensor 71, and the pressing lever 72 is moved by the fixed shaft 72d passed through the through hole 72e. It is supported by one single 10.
  • the intermediate portion 72c on the outer side of the base end portion 72a is formed on the intake port 1.
  • the intermediate portion 72c of the pressing lever 72 is extended outward from the base end portion 72a, and is directed forward from the outer end portion to a position facing the inner opening of the mounting hole 12. It has been extended.
  • a tip 72b formed at a position facing the opening on the inner side of the mounting hole 12 is extended toward the outer side, and is inserted into the mounting hole 12. Has been inserted.
  • the projection 65b of the mounting screw 65 of the dust cover 60 is inserted into the mounting hole 12 of the casing 10, that is, the dust cover 60 is closed.
  • the projection 65 b of the mounting screw 65 is configured to press the tip 72 b of the pressing lever 72.
  • the projection 65b of the mounting screw 65 of the dust cover 60 is not inserted into the mounting hole 12, that is, the dust cover 60 is open as shown in FIG. In Fig. 2, the pressing lever 72 does not tilt because no pressing force is applied to the tip 72b of the pressing lever 72. Accordingly, since the pressing force does not act on the detection unit 71a of the pressure sensor 71, no detection signal is output from the pressure sensor 71 to the control unit 73 (see FIG. 4).
  • the control unit 73 shown in FIG. 4 controls the drive of the engine 32 based on the variation of the pressing force with respect to the detection unit 71a of the pressure sensor 71.
  • the control unit 73 is configured using various known control circuits, and the configuration is not limited.
  • the dust-proof cover 60 is closed (see Fig. 3 (a)) and the vacuum pipe P2 is inserted into the intake port 11 (see Fig. 6).
  • Pressing lever 72 force When a pressing force is applied to the detecting portion 71a of the pressure sensor 71 and a detection signal is output from the pressure sensor 71, the engine 32 of the driving device 30 is set in a drivable state. In this state, the blower fan 20 can be rotated by driving the engine 32.
  • the control unit 73 presses the dust cover 60 in a state where the dust cover 60 is open (see FIG. 3B).
  • the engine 32 of the drive device 30 is set to the stop state. In this state, since the engine 32 is stopped, the rotation of the blower fan 20 is stopped. In addition, since the engine 32 cannot be driven, the blower fan 20 cannot be rotated by an erroneous operation.
  • control unit 73 is configured to set the engine 32 of the drive device 30 to a stopped state even when the pressing force acting on the detection unit 71a of the pressure sensor 71 is reduced from the pressing lever 72. Has been.
  • the pressing force acting on the detecting portion 71a of the pressure sensor 71 from the base end portion 72a of the pressing lever 72 also decreases, so the control unit 73 stops the engine 32 (see FIG. 4) of the driving device 30. Will be set to state.
  • the engine 32 (see Fig. 4) of the driving device 30 is stopped.
  • the projection 65b of the mounting screw 65 of the dust cover 60 is The engine 32 stops when the mounting screw 12 of the dust cover 60 is loosened, that is, when the mounting screw 65 of the dust cover 60 is not completely pulled out from the mounting hole 12 of the bracket 10.
  • the engine 32 is stopped before the air intake 11 of the casing 10 is exposed to the outside, and the rotation of the blower fan 20 is stopped. Therefore, the safety when opening the dust cover 60 from the air intake 11 is improved. Can be increased.
  • the control unit 73 controls the engine 32 of the drive device 30 based on the fluctuation of the pressing force. Since the driving state is changed, the driving state of the engine 32 can be easily switched.
  • the detection unit 71a of the pressure sensor 71 is pressed by the pressing lever 72, and the control unit 73 (see FIG. 4) also drives the engine 32 in the stop state force. Since the state is switched to a possible state, the driving state of the engine 32 can be easily switched.
  • the force of screwing the mounting screw 65 of the dustproof cover 60 into the mounting hole 12 of the casing 10 is the pin pin formed on the dustproof cover 60.
  • the dust cover 60 is fixed to the casing 10 by fitting protrusions such as a hook into the mounting holes formed in the casing 10, and the pressing lever 7 is fixed by these protrusions.
  • the dust cover 60 is attached to the casing 10 by the hinge 64 and is configured to open and close.
  • the dust cover 60 It is also possible to remove the whole from the side surface of the casing 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention concerne une soufflante (1) ayant un ventilateur (20) placé dans un boîtier (10), un dispositif d'entraînement (30) pour faire tourner le ventilateur (20), un cache de protection anti-poussière (60) pour couvrir une ouverture d'admission (11) du boîtier (10) et un mécanisme d'arrêt d'entraînement (70) pour arrêter le dispositif d'entraînement (30). Le mécanisme d'arrêt d'entraînement (70) présente un levier de pression (72) pour appuyer sur un capteur de pression (71) lorsqu'il est pressé par la saillie (65b) du cache de protection anti-poussière (60) inséré dans un trou de montage (12) réalisé dans le boîtier (10) et présente également une section de commande (73) pour arrêter le dispositif d'entraînement (30) lorsque la force de pression exercée sur le capteur de pression (71) par le levier de pression (72) diminue. Le fait que le ventilateur (20) s'arrête automatiquement de tourner lorsque le cache de protection anti-poussière (60) est retiré de l'ouverture d'admission (11) permet d'améliorer la sécurité lorsque l'ouverture d'admission (11) est exposée vers l'extérieur.
PCT/JP2006/320477 2006-10-13 2006-10-13 Soufflante WO2008044314A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2006/320477 WO2008044314A1 (fr) 2006-10-13 2006-10-13 Soufflante
US12/445,340 US20100086412A1 (en) 2006-10-13 2006-10-13 Blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/320477 WO2008044314A1 (fr) 2006-10-13 2006-10-13 Soufflante

Publications (1)

Publication Number Publication Date
WO2008044314A1 true WO2008044314A1 (fr) 2008-04-17

Family

ID=39282526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/320477 WO2008044314A1 (fr) 2006-10-13 2006-10-13 Soufflante

Country Status (2)

Country Link
US (1) US20100086412A1 (fr)
WO (1) WO2008044314A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5572060B2 (ja) * 2010-10-22 2014-08-13 株式会社やまびこ 送風作業機
CN209908863U (zh) * 2016-09-30 2020-01-07 工机控股株式会社 鼓风机
US11744175B2 (en) 2017-09-12 2023-09-05 Black & Decker, Inc. Convertible mower
SE543870C2 (en) * 2018-01-24 2021-08-17 Husqvarna Ab Leaf blower
US11571101B2 (en) 2018-09-07 2023-02-07 Black & Decker, Inc. Blowervac safety grill
CN113576326B (zh) * 2021-07-07 2023-01-24 北京顺造科技有限公司 一种自动清洁设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4886375U (fr) * 1972-01-21 1973-10-19
JPS55170715U (fr) * 1979-05-25 1980-12-08
JPS56115898A (en) * 1980-02-18 1981-09-11 Toshiba Corp Safety device for electric fan
JPS61283795A (ja) * 1985-04-08 1986-12-13 マツカロツク　コ−ポレ−シヨン 送風兼真空装置
JPS623197A (ja) * 1985-06-28 1987-01-09 Sanyo Electric Co Ltd 扇風機
JPS6371494U (fr) * 1986-10-29 1988-05-13

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998675A (en) * 1989-11-29 1991-03-12 Mohrman John H Solid waste processing unit
US6629818B2 (en) * 2001-02-09 2003-10-07 The Toro Company Impeller for use with portable blower/vacuums
JP4287261B2 (ja) * 2003-12-05 2009-07-01 本田技研工業株式会社 動力送風機
US7194823B2 (en) * 2003-12-08 2007-03-27 Matsushita Electric Industrial Co., Ltd. Clothes drier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4886375U (fr) * 1972-01-21 1973-10-19
JPS55170715U (fr) * 1979-05-25 1980-12-08
JPS56115898A (en) * 1980-02-18 1981-09-11 Toshiba Corp Safety device for electric fan
JPS61283795A (ja) * 1985-04-08 1986-12-13 マツカロツク　コ−ポレ−シヨン 送風兼真空装置
JPS623197A (ja) * 1985-06-28 1987-01-09 Sanyo Electric Co Ltd 扇風機
JPS6371494U (fr) * 1986-10-29 1988-05-13

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