WO2001030228A1 - Aspirateur - Google Patents

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Publication number
WO2001030228A1
WO2001030228A1 PCT/JP2000/007539 JP0007539W WO0130228A1 WO 2001030228 A1 WO2001030228 A1 WO 2001030228A1 JP 0007539 W JP0007539 W JP 0007539W WO 0130228 A1 WO0130228 A1 WO 0130228A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
hose
vacuum cleaner
exhaust
electric blower
Prior art date
Application number
PCT/JP2000/007539
Other languages
English (en)
Japanese (ja)
Inventor
Hidenori Kitamura
Seiji Ishikawa
Tetsuharu Nomachi
Masashi Okujima
Yasunori Tsuzaki
Masakazu Onda
Toshifumi Miyahara
Kazuma Suo
Yoshihiro Taniguchi
Hideaki Sakatani
Tsuyoshi Nishimura
Tsuyoshi Tokuda
Yoshitaka Murata
Kazuhisa Morishita
Seiji Yamaguchi
Tetsuo Imai
Koichi Fujita
Original Assignee
Matsushita Electric Industrial Co., Ltd.
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
Priority claimed from JP30667899A external-priority patent/JP2001120478A/ja
Priority claimed from JP30669299A external-priority patent/JP3275897B2/ja
Priority claimed from JP30930899A external-priority patent/JP3303861B2/ja
Priority claimed from JP2000004288A external-priority patent/JP3275900B2/ja
Priority claimed from JP2000018447A external-priority patent/JP3915361B2/ja
Priority claimed from JP2000093168A external-priority patent/JP2001275898A/ja
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to AU79598/00A priority Critical patent/AU7959800A/en
Publication of WO2001030228A1 publication Critical patent/WO2001030228A1/fr

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Classifications

    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • 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
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/08—Nozzles with means adapted for blowing
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes

Definitions

  • the present invention relates to a vacuum cleaner that uses exhaust gas to remove dust on a surface to be cleaned by circulating exhaust gas from an electric blower to a suction tool.
  • the cleaner body 1 has a dust collection chamber 2 for collecting dust inside and a dust collection filter 3, and a suction fan 4 is driven by a motor 5 to collect dust.
  • the inside is under negative pressure to collect dust.
  • the rotating brush 6 lifts dust from the floor, and is driven by a rotating brush driving motor 7 via a belt 8 and a rotating brush pulley 9.
  • the rotating brush 6 is supported by a bearing 10.
  • the exhaust gas 11 discharged from the motor 5 is blown to the floor from the discharge portion 13 communicating with the intake port 12 from the motor 5.
  • dust on the floor is blown off inside the air intakes 12 and separated from the floor.
  • a rotary brush 6 rotatably supported at both ends by bearings 10 is provided inside the intake port 12.
  • the rotary brush 6 is driven by a motor 7 through a belt 8 and a rotary brush burry 9. You. As the rotating brush 6 rotates, dust lurking behind the hairs on the floor such as a carpet is discharged.
  • the present invention solves the above-mentioned conventional problems, and reduces the degree of negative pressure in an intake port caused by recirculating exhaust air from an electric blower to a suction device, thereby improving dust collection performance particularly on a carpet.
  • the primary objective is to provide a vacuum cleaner that prevents the drop.
  • a third object is to provide a telescopic pipe for a vacuum cleaner that has good usability.
  • the present invention provides a suction passage communicating from an intake port provided in a suction tool to a dust collection chamber, and at least a part of exhaust gas discharged by operation of an electric blower,
  • a vacuum cleaner that has an exhaust passage that recirculates the tool, and a suction brush that has a rotating brush that is rotated and driven by a built-in electric motor, which is generated by recirculating exhaust air from the electric blower to the suction tool. It is possible to provide a vacuum cleaner capable of preventing a decrease in dust collection performance particularly on a carpet due to a decrease in the degree of negative pressure in the intake port.
  • an extension pipe or a suction tool is connected to the other end of the hose having one end connected to the main body of the vacuum cleaner having a built-in electric blower, and the main body of the vacuum cleaner, the hose, the extension pipe,
  • the suction device has an intake passage for intake air sucked into the electric blower, and an exhaust passage for exhaust gas discharged from the electric blower, and in a vacuum cleaner for returning at least a part of exhaust gas from the electric blower to the suction device
  • the connection pipe connected to the extension pipe or hose has two separate ventilation paths, and is a suction device for a vacuum cleaner with an intake passage formed on the lower side, and is rotated by forming an intake passage on the lower side. There is no need to suck up the dust raised above the floor by rotating the brush to a higher position, making it easier to suck in relatively large or heavy dust.
  • the telescopic operation is slidable in the axial direction.
  • Each ventilation pipe has an intake passage for intake air sucked into the electric blower and an exhaust passage for exhaust discharged from the electric blower.
  • a telescopic pipe for a vacuum cleaner that connects the intake passage and the exhaust passage slidably in the axial direction. The user slides the first and second ventilation pipes in the axial direction so that the length is easy to clean.
  • the first and second ventilation pipes can be slid in the axial direction to shrink the telescopic pipe and housed in a compact, improving usability. be able to.
  • the invention described in claim 1 of the present invention is characterized in that: an intake passage communicating from an intake port provided in a suction tool to a dust collection chamber; and at least a part of exhaust gas discharged by operation of an electric blower,
  • the vacuum cleaner has an exhaust passage for returning to the suction tool, and the suction tool has a rotating brush that is driven to rotate by a built-in electric motor.
  • the rotation speed is the same as before, the peripheral speed of the outer circumference of the rotating brush is increased, and the mass of the rotating brush itself increases, so that the exhaust from the electric blower is recirculated to the suction tool. Due to the decrease in the degree of negative pressure in the intake port caused by the removal, the lifting of the rotating brush from the surface to be cleaned, especially on the carpet, can be prevented, and the reduction of dust collection performance on the carpet can be realized.
  • the invention described in claim 2 is the electric vacuum cleaner according to claim 1, wherein the exhaust gas recirculated through the exhaust passage is caused to flow into the rotary brush.
  • the exhaust can be exhausted from the vicinity to a wide range of surfaces to be cleaned. Dust collection performance can be improved by increasing the dust blowing effect.
  • the invention described in claim 3 is characterized in that at least a part of the exhaust passage discharged from the operation of the electric blower and the intake passage communicating from the intake port provided in the suction device to the dust collection chamber is returned to the suction device.
  • a vacuum cleaner that has an exhaust passage that allows the exhaust to flow back from the vicinity of both ends in front of the suction tool to the suction port, and the entire surface to be cleaned below the suction tool by returning exhaust gas from the vicinity of both ends in front of the suction tool to the suction port. And the ability to blow off dust on the surface to be cleaned and transfer it to the air inlet can be improved, thereby improving dust collection performance.
  • the invention described in claim 4 is the electric vacuum cleaner according to claim 3, wherein the exhaust gas discharged by the operation of the electric blower is recirculated toward the vicinity of the center of the intake port. Yes, by recirculating the exhaust toward the center of the intake port, the flow velocity of the airflow sucked into the intake port can be increased, and the ability to blow off dust on the surface to be cleaned and transfer it to the intake port can be improved. Dust performance can be improved.
  • the invention according to claim 5 is characterized in that at least a part of the exhaust passage discharged from the operation of the electric blower and the intake passage communicating from the intake port provided in the suction device to the dust collection chamber is supplied to the suction device.
  • a vacuum cleaner that has an exhaust passage for recirculation, and recirculates air from the vicinity of the center in front of the suction implement to the intake port. Large and heavy dust can be sucked in well.
  • the invention described in claim 6 is characterized in that at least a part of the exhaust passage discharged from the operation of the electric blower and the intake passage communicating from the intake port provided in the suction device to the dust collection chamber is returned to the suction device.
  • a vacuum brush provided with an exhaust passage for rotating the rotary brush and a rotary brush, wherein the dust flows upward from a floor surface due to rotation of the rotary brush and returns to a suction port from near an upper part of the suction tool at the center of rotation of the rotary brush.
  • the dust adhering to the brush dust raising portion is blown off by the exhaust air and sucked into the intake port, thereby preventing the dust from adhering to the dust raising portion, and preventing the blown dust from scattering to other parts. It can be sucked into the intake immediately.
  • the invention described in claim 7 is characterized in that at least a part of the exhaust passage discharged from the operation of the electric blower and the intake passage communicating from the intake port provided in the suction device to the dust collection chamber is returned to the suction device.
  • a vacuum cleaner that has an exhaust passage and a rotating brush for exhausting air in the direction of rotation of the rotating brush from above the suction tool at the center of rotation of the rotating brush. The dust adhered to the dust brush of the rotating brush is blown off by the exhaust air blown in the rotating direction of the rotating brush and sucked into the intake port, thereby preventing the dust from adhering to the dust sweeping portion and being blown away. Dust can be immediately sucked into the intake port without scattering to other parts.
  • the invention described in claim 8 is the invention according to claim 1 or 5, wherein the dust lifting portion provided on the outer peripheral surface of the rotating brush is a rotating brush.
  • An electric vacuum cleaner that is formed in a substantially V shape along the longitudinal direction of the peripheral surface of the brush and that recirculates exhaust discharged by the operation of the electric blower toward the V-shaped valley of the dust lifting portion.
  • the recirculated exhaust gas gradually and efficiently flows along the V-shape of the dust lifting portion of the rotating brush to the suction portion, thereby improving dust collection performance and reducing noise.
  • the invention described in claim 9 is the electric cleaning device according to claim 3 or 5, wherein the exhaust air discharged by the operation of the electric blower is discharged substantially parallel to the surface to be cleaned.
  • the vacuum cleaner When the vacuum cleaner is lowered from above to the surface to be cleaned, dust on the surface to be cleaned can be prevented from being blown off in another direction before being sucked into the intake port.
  • the invention described in claim 10 is provided with an air intake port communicating from inside the suction device to the dust collection chamber, and a discharge portion for discharging the exhaust from the electric blower to the suction device, and facing the discharge portion.
  • This is a vacuum cleaner with a shielding plate.When the dust from the surface to be cleaned is blown off by exhaust air from the electric blower, the shielding plate prevents the blown dust from flowing out between the lower surface of the suction tool and the surface to be cleaned. This improves dust collection performance.
  • An invention according to claim 11 is a cleaner main body having a built-in electric blower, a hose having one end connected to the cleaner main body, and an extension tube or a suction tool connected to the other end of the hose.
  • the cleaner body, the hose, the extension pipe, and the suction device each have an intake passage for intake air sucked into the electric blower and an exhaust passage for exhaust gas discharged from the electric blower, and the exhaust passage from the electric blower is provided.
  • the connection pipe connected to the extension pipe or hose is a suction tool for an electric vacuum cleaner that has two separate ventilation paths and forms an intake path below. Yes, by forming an intake passage on the lower side, it is not necessary to suck up the dust raised above the floor by rotating the rotating brush to a higher position, making it easier to suck in relatively large or heavy dust. it can.
  • the invention set forth in claim 12 is the invention according to claim 11, wherein the center of rotation of the connecting portion that rotates up and down and connects the connection pipe and the suction tool main body.
  • This is a suction tool for a vacuum cleaner that has an exhaust passage around the suction part and communicates with the exhaust passage of the suction tool body. It is low cost, suppresses exhaust leakage, and can easily communicate with the exhaust passage of the suction tool body.
  • the invention according to claim 13 is the electric cleaning apparatus according to claim 11, wherein the exhaust passage of the connecting portion and the exhaust passage of the suction tool main body are connected by a flexible pipe.
  • a suction device for a machine which satisfies the vertical rotation of the connecting portion and can easily communicate the connecting portion and the exhaust passage of the suction device main body.
  • the invention according to claim 14 is the invention according to claim 11, wherein the suction tool main body composed of an upper frame and a lower frame includes an exhaust passage of the suction tool main body.
  • the suction for a vacuum cleaner according to claim 11 is provided in a vacuum cleaner main body having a dust collection chamber for collecting dust therein and an electric blower.
  • the invention according to claim 16 has a first ventilation pipe and a second ventilation pipe that extend and contract slidably in the axial direction, and each of the ventilation pipes has A telescopic pipe for a vacuum cleaner having an intake passage for intake air to be exhausted, and an exhaust passage for exhaust discharged from the electric blower, wherein the intake passage and the exhaust passage of each of the ventilation pipes are slidably connected in the axial direction.
  • the user can adjust the length of the first and second tubes by sliding them in the axial direction so that they are easy to clean.
  • the trachea can be slid in the axial direction to shrink the telescopic pipe and house it compactly, improving usability.
  • each vent pipe is divided into an intake passage and an exhaust passage.
  • the invention according to claim 17 has a second ventilation pipe that extends and contracts slidably in the axial direction in the first ventilation pipe, and each of the ventilation pipes is sucked into an electric blower.
  • a telescopic pipe for a vacuum cleaner that slides in the axial direction by inserting the separated intake passage and exhaust passage into the intake passage and the exhaust passage of the first ventilation pipe, respectively.
  • the length of the telescopic pipe can be shortened. Conversely, when the second vent pipe is pulled out from the first vent pipe, the telescopic pipe can be extended.
  • the intake passage and the exhaust passage of the second ventilation pipe are formed separately, the ends of the intake passage and the exhaust passage of the second ventilation pipe are formed inside the intake passage and the exhaust passage of the first ventilation pipe. Can be inserted.
  • the intake passage and exhaust passage of the second ventilation pipe slide in the intake passage and exhaust passage of the first ventilation pipe, the connection between the intake passages and the connection between the exhaust passages of each ventilation pipe.
  • a seal member is attached to the end of each passage so that each passage slides, so that the airtightness of the connection portion of each passage is increased or the sliding operation is reduced (the expansion and contraction operation is reduced).
  • the material and structure of the sealing member or reduce the gap at the connection between the passages without using a sealing member. Need to be applied.
  • the intake passage and the exhaust passage can be freely designed without any restrictions such as a semicircular shape and a square shape. it can. Since the intake passage and the exhaust passage of the second ventilation pipe are separated from each other, the second passage is adapted to the cross-sectional shape of the intake passage and the exhaust passage of the first ventilation pipe.
  • the cross-sectional shape of each passage of the trachea can be made, and each passage of the second ventilation tube can be slidably inserted in the axial direction into each passage of the first ventilation tube.
  • the shape of the intake passage can be freely designed, the size and shape of the dust in the intake passage make it easy to move, so that the flow of dust moving inside the intake passage can be smooth, and the dust clogging in the intake passage can be prevented.
  • the invention according to claim 18 has a second ventilation pipe that extends and contracts slidably in the axial direction in the first ventilation pipe, and each of the ventilation pipes is sucked into an electric blower. And an exhaust passage for exhaust discharged from the electric blower, wherein the exhaust gas is inserted into the exhaust passage of the second ventilation pipe and slides in the axial direction in the first ventilation pipe.
  • Forming a passage, a portion of the first ventilation pipe excluding an exhaust passage is an intake passage, and a telescopic pipe for a vacuum cleaner communicating with the intake passage of the second ventilation pipe;
  • the exhaust passage is formed as a cylinder, and is arranged so as to provide a gap with the inner surface of the first ventilation pipe.
  • the end of the cylindrical body into which the second ventilation pipe is inserted is a free end, and the other end is the first end. A fixed end to be fixed to the end of one vent pipe.
  • an exhaust passage for inserting a cylinder is formed in the second ventilation pipe, and the second ventilation pipe is configured to move axially in a gap between the inner surface of the first ventilation pipe and the cylinder.
  • the second ventilation pipe has a configuration in which the intake passage and the exhaust passage are separated from each other even in the axial direction. Therefore, the second ventilation pipe does not need to be configured to separate the intake passage from the exhaust passage, and the second ventilation pipe can be moved from the first ventilation pipe to the second ventilation pipe.
  • the second ventilation pipe is pulled out, there is no gap between the exhaust passage and the intake passage, so that the appearance of the telescopic pipe can be improved.
  • the expansion and contraction operation can be made favorable without adhesion.
  • the invention according to claim 19 has a second ventilation pipe that extends and contracts slidably in the axial direction in the first ventilation pipe, and each of the ventilation pipes is sucked into an electric blower.
  • Each of the ventilation pipes forms an intake passage or an exhaust passage by a small-diameter pipe provided therein, and the intake passage or the exhaust passage
  • An exhaust passage or an intake passage is formed inside the ventilation pipe except for the above, and the small pipe of the first ventilation pipe is inserted into the second small pipe and is a telescopic pipe for a vacuum cleaner that slides in the axial direction.
  • the length of the telescopic pipe can be shortened by inserting the second vent pipe into the first vent pipe, and conversely, when the second vent pipe is pulled out from the first vent pipe, the telescopic pipe can be extended. it can.
  • the configuration is such that each ventilation pipe slides with the small diameter pipe, the airtightness of the connection portion of each ventilation pipe and the connection portion of the small diameter pipes can be ensured, and the second ventilation pipe is provided inside the first ventilation pipe. Irrespective of the expansion / contraction operation of taking in and out, air leakage from the connection part between the ventilation pipes and the connection part between the small diameter pipes can be prevented.
  • each ventilation pipe and each small pipe By attaching a seal member to the end of each ventilation pipe and each small pipe so that each ventilation pipe and each small pipe slide, the airtightness of the connection part of each passage is improved, or In order to reduce the sliding movement (the expansion and contraction movement can be performed with a small force), consider the material and structure of the sealing member, or without using the sealing member, remove the gap between the connecting parts of each ventilation pipe and small diameter pipe. It is necessary to take measures to minimize the air leak by making it smaller.
  • the small diameter pipe and the ventilation pipe may be arranged coaxially, or the small diameter pipe may be arranged eccentrically from the center of the ventilation pipe.
  • a part of the outer peripheral surface approaches a part of the inner peripheral surface of the vent pipe, and the space between the outer peripheral surface of the small diameter pipe on the opposite side and the inner peripheral surface of the vent pipe becomes larger. Resistance can be reduced, and ventilation loss can be reduced. Further, as a preferred mode, the outer peripheral surface of the small-diameter pipe is eccentric near the center of the ventilation pipe having a low pipe resistance and high flow velocity, so that the ventilation loss can be further reduced and the intake air volume or the exhaust air volume is increased. be able to. Further, as in the invention described in claim 18, it is possible to improve the external appearance of the telescopic pipe, and it is possible to improve the telescopic operation without any adherence to the gaps. can do.
  • the invention according to claim 20 has a second ventilation pipe that extends and contracts slidably in the axial direction inside the first ventilation pipe, and each of the ventilation pipes is sucked into an electric blower.
  • Each of the ventilation pipes forms an intake passage or an exhaust passage by a small-diameter pipe provided therein, and the intake passage or the exhaust passage
  • An exhaust passage or an intake passage is formed inside the ventilation pipe except for the above, and the small pipe of the second ventilation pipe is inserted into the first small pipe and is a telescopic pipe for a vacuum cleaner that slides in the axial direction.
  • This configuration is substantially the same as the invention described in claim 19, and has the same operation as the invention described in claim 19.
  • the difference is whether the small diameter pipe of the first ventilation pipe is inserted into the second small diameter pipe or the small diameter pipe of the second ventilation pipe is inserted into the first small diameter pipe.
  • This is meaningful when the small diameter pipe is used as the intake passage, and when the suction tool is connected to the end of the second ventilation pipe. That is, dust moving in the small diameter pipe of the second ventilation pipe flows into the small diameter pipe side of the first ventilation pipe, but the diameter of the second ventilation pipe is smaller than that of the first ventilation pipe. Since it is small, the flow of dust at the junction of small diameter pipes is smooth.
  • the configuration according to claim 19 that is, the small-diameter pipe of the first ventilation pipe is replaced with the second small-diameter pipe Unless it is configured to be inserted into the pipe, the flow of dust at the joint of the small diameter pipes cannot be made smooth as described above. As described above, the loss of suction power can be reduced by suppressing the dust catching and the turbulence of the suction airflow at the joint portion of the small diameter pipe.
  • the invention described in claim 21 is slidable in the first ventilation pipe in the axial direction.
  • a second ventilation pipe that expands and contracts, and each of the ventilation pipes is provided with an intake passage for intake air sucked into an electric blower, and an exhaust passage for exhaust discharged from the electric blower.
  • This is a telescopic pipe for a warm-up cleaner comprising a telescopic pipe and the second small-diameter pipe.
  • the telescopic pipe is capable of telescopically smooth sliding while securing the separation and airtightness of two ventilation passages. be able to.
  • the weight can be reduced and the sliding surface can be reduced by reducing the number of sliding surfaces, as compared with a configuration in which two tubes are combined and slidably stretched. The operating force when moving can be reduced.
  • air-tight packing is not required for the sliding part, cost can be reduced.
  • the invention described in claim 22 is the telescopic pipe for a vacuum cleaner in which the small-diameter pipe is an intake passage in the invention described in claim 20 or 21, Even if the diameter of the small-diameter pipe is made relatively larger than the diameter of the ventilation pipe and the second ventilation pipe, the necessary exhaust passage area can be secured, while the intake passage area is increased to secure the suction force, and A diameter that does not catch dust can be secured.
  • the invention according to claim 23 is the invention according to claim 16, wherein the length of expansion and contraction of the first ventilation pipe and the second ventilation pipe is adjusted,
  • This is a telescopic pipe for a vacuum cleaner that has a holding device that holds the adjusted telescopic length even when the force of the above applies.Even if an external force that contracts the telescopic pipe acts, the telescopic pipe length can be maintained. For example, when a suction tool is provided at one end of the telescopic pipe and a force for moving the suction tool is applied from the other end of the telescopic pipe, a force in the contraction direction is applied to the telescopic pipe. Since the length of the telescopic pipe can be maintained by the holding device, cleaning can be performed with the length of the telescopic pipe which makes the posture easy.
  • the invention described in claim 24 is the claim 17 or 18
  • a telescopic pipe for a vacuum cleaner having a holding device for holding at least the length of expansion and contraction of the first ventilation pipe and the second ventilation pipe by preventing movement at least in the axial direction by locking by a locking portion.
  • the length of the telescopic pipe can be maintained even when an external force that shrinks the telescopic pipe is applied.
  • a suction tool is provided at one end of the telescopic pipe, and the force for moving the suction tool is transferred to another telescopic pipe.
  • the invention described in claim 25 is the invention according to claim 17, wherein the intake passage or the exhaust passage of the second ventilation pipe is provided, wherein the opposed facing surfaces are separated from each other.
  • a plurality of locked portions are provided along the axial direction, and the locked portion is constituted by a locked portion and a locking portion that locks to the locked portion.
  • a telescopic pipe for a vacuum cleaner having a holding device for maintaining the length of expansion and contraction of the first ventilation pipe and the second ventilation pipe, and an external force acting to shrink the expansion pipe acts.
  • the length of the telescopic pipe can be maintained.
  • a suction tool is provided at one end of the telescopic pipe and a force for moving this suction tool is applied from the other end of the telescopic pipe, The force in the contraction direction is applied, but the telescopic pipe is Cleaning can be performed with the length of the telescopic pipe, which makes the posture easier.
  • the locked portion is provided on the intake or exhaust passage of the second ventilation pipe and on the separated and opposed surfaces, the locked portion is not visible from the outside, that is, exposed. Since this is not the case, the appearance of the telescopic pipe can be improved.
  • the invention described in claim 26 is the telescopic pipe for a vacuum cleaner in which an electric conductor is arranged in an exhaust passage in the invention described in claim 16 or 17.
  • a suction tool is connected to one end of the telescopic pipe, and an electric motor that requires power supply in this suction tool (generally a rotary brush is driven to rotate)
  • a conductor can be used as a transmission signal line for transmitting a signal from a control circuit component in the suction tool to the cleaner body.
  • the invention according to claim 27 is the invention according to claim 26, wherein a stretchable portion is provided on at least a part of the conductor, and the first ventilation pipe and the second ventilation pipe are provided.
  • This is a telescopic pipe for a vacuum cleaner in which the expansion and contraction portion of the conductor expands and contracts as the expansion and contraction of the conductor occurs. The conductor expands and contracts in accordance with the expansion and contraction of the extension pipe, and the conductor does not receive strong tension and is disconnected. There is nothing.
  • the cleaner body having a built-in electric blower, and one end of which communicates with an intake side and an exhaust side of the electric blower, the vacuum cleaner according to claim 16 And a suction tool connected to the other end of the vacuum cleaner telescopic pipe, wherein an exhaust passage of the vacuum cleaner telescopic pipe extends from an intake passage when the suction tool is placed on a surface to be cleaned.
  • an exhaust passage can be formed upward from the connection between the suction tool and the telescopic pipe.
  • connection structure between the exhaust passage formed above the fitting and the exhaust passage of the telescopic pipe can be simplified.
  • the suction tool has an intake port formed on the lower surface facing the surface to be cleaned, so that the intake passage communicating with the suction port can be formed below the suction tool in terms of structure. If a passage is formed, it is preferable to utilize the space above the suction tool. Therefore, it is important to provide an exhaust passage above the suction tool in order to simplify the structure of the suction tool. Exhaust air passing through the exhaust passage of the suction tool is exhausted from the exhaust port of the suction tool, and the exhaust blows dust on the surface to be cleaned through the suction port. Can be improved.
  • the invention according to claim 30 is the vacuum cleaner according to claim 16, wherein one end communicates with a cleaner main body having a built-in electric blower and an intake side and an exhaust side of the electric blower. And a suction tool connected to the other end of the vacuum cleaner telescopic pipe, wherein an exhaust passage of the vacuum cleaner telescopic pipe extends from an intake passage when the suction tool is placed on a surface to be cleaned. Vacuum cleaner located below, where the exhaust passage can be formed below the intake passage, and when moisture is sucked together with dust into the intake passage, the moisture that has entered the intake passage is moved to the bottom of the intake passage by gravity.
  • the exhaust passage is located below the intake passage, moisture can be prevented from evaporating due to the heat of the exhaust passage and dust from adhering to the inner surface of the intake passage.
  • the first ventilation pipe and the second ventilation pipe In the telescopic sliding operation with There is no adverse effect of dust attached. Since the exhaust gas is circulated, the temperature of the exhaust gas becomes high, and moisture can be evaporated.
  • the invention according to claim 31 includes a cleaner main body having a built-in electric blower, a hose having one end connected to the cleaner main body, a hand grip pipe provided at the other end of the hose, An extension pipe connected to the handgrip pipe, and a suction tool connected to the extension pipe, wherein the handgrip pipe is a straight tubular ventilation pipe, and branches upward and rearward from the ventilation pipe.
  • This is a vacuum cleaner having a handle part that can be used. Since the ventilation pipe is a straight pipe, the core of the mold only needs to be straight, and the moldability can be improved. In addition, since there are no bent parts in the ventilation pipe, the flow of intake air is smooth and the suction force can be kept high.
  • the suction tool has a suction tool main body, and a connection pipe attached to the rear of the suction tool main body so as to be tiltable, and one end of an extension pipe is connected to the suction pipe, and the connection pipe cleans the suction tool main body.
  • a vacuum cleaner that can be tilted to a position that is approximately parallel to the surface to be cleaned when placed on a surface. Since the trachea is a straight tube, the ventilation tube is also substantially parallel to the surface to be cleaned, and it is possible to prevent the gripping pipe from hindering the tilting of the extension tube.
  • the invention according to claim 33 is the invention according to claim 31, wherein the grip portion extends from above the ventilation pipe and extends rearward from the extension portion.
  • a vacuum cleaner having a configuration in which the extended portion and the grip portion are formed integrally with the ventilation pipe so that the upper portion is opened, and the upper opening portion is covered with a lid.
  • the handle can be formed integrally with the ventilation pipe, which can reduce the number of parts and improve productivity by reducing the number of assembly steps. Also, since it is formed into a straight tubular ventilation tube, moldability with a mold is also good.
  • the invention described in claim 34 is the invention according to claim 33, wherein at least the operation portion is provided in the extension portion, and the component for the operation portion is provided in the extension portion.
  • the vacuum cleaner is provided with a, and can be operated by grasping the gripping part, and the parts can be stored using the space of the extension part.
  • the invention described in claim 35 is the invention according to claim 31 or 33, wherein the handle portion extends from above the ventilation pipe, and
  • the grip is a vacuum cleaner that is bent or curved from the extending portion so that the rear side faces the hose side, and the grip is gripped by the extension and the suction is performed through an extension pipe.
  • the extension pipe is inclined with respect to the surface to be cleaned, and the ventilation pipe of the hand grip pipe is also inclined like the extension pipe.
  • the gripping part is located in a position substantially parallel to the surface to be cleaned or slightly inclined from that position in the above-mentioned state, so that a burden is placed on the hand gripping the gripping part.
  • the push-pull operation of the suction tool can be performed without the need.
  • the invention according to claim 36 is the invention according to claim 35, wherein in a use state in which the gripper of the handle is gripped and the suction tool is moved back and forth through the extension pipe, Extend from the extension so that the gripper is raised up against the surface to be cleaned.
  • a vacuum cleaner that is bent or curved, with the wrist facing upward when gripping the grip, making it easier to push the extension tube forward.
  • the suction device is placed on the surface to be cleaned and the grip of the hand grip pipe is at a height of 80 cm from the surface to be cleaned, the extension tube is used. This is a use condition in which the suction tool is moved back and forth. Therefore, when the grip is at a height of 80 cm from the surface to be cleaned, the grip is formed so as to rise forward with respect to the surface to be cleaned. Even when the grip is held, the wrist is turned upward and the extension tube is easily pushed forward.
  • the invention according to claim 37 is the invention according to claim 31, wherein a hose connection portion for connecting a hose is formed at one end of the ventilation pipe, and at least the hose connection portion is provided.
  • This is a vacuum cleaner with the upper part of the part shifted downward from the upper part of the remaining ventilation pipe part, and even if the rear end of the grip part of the hand grip pipe extends to the hose side, the hose can be moved from the handle part Since the connection can be made in the direction in which the handle is separated, the distance between the handle and the hose can be increased, and the hand holding the handle can be prevented from accidentally hitting the hose.
  • the invention according to claim 38 is the electric vehicle according to claim 37, wherein the pipe axis of the hose connection portion is shifted downward from the pipe axis of the remaining ventilation pipe.
  • the vacuum cleaner according to claim 36, wherein the grip portion can be largely bent or curved toward the hose side by an amount corresponding to a deviation of the hose axis from the ventilation pipe toward the surface to be cleaned.
  • it is effective when the grip portion is bent or bent greatly toward the hose in order to improve the pushing operation.
  • the operability is improved without the hand holding the gripping part touching the hose.
  • the highest point of the grip part can be lowered toward the surface to be cleaned by the amount of the displacement, thereby reducing the sense of volume of the entire hand grip pipe. it can.
  • the invention described in claim 39 is the invention according to claim 31 or 33, wherein at least at the end of the gripping portion, a hose is positioned below the gripper.
  • the hose hangs down to the surface to be cleaned by gravity due to gravity, so the gap between the gripper and the hose increases, and even if the distance between the gripper and the hose is set to a small value, the hand will not touch the hose. May make the feel worse And not.
  • the center of the hose swing is located almost directly below the gripper, making it possible to reduce the swing width of the hose and improve usability. .
  • the invention according to claim 40 is the invention according to claim 31 or 33, wherein the cleaner body, the hose, the extension pipe, and the suction tool are each sucked by the electric blower.
  • a vacuum cleaner having an intake passage, and an exhaust passage for circulating at least a part of the exhaust discharged from the electric blower to the suction device.
  • the hand grip pipe of the exhaust circulation type vacuum cleaner forms a double passage of the intake passage and the exhaust passage, the intake passage cannot be made large considering the usability, but the intake passage is a straight tube Therefore, it is unlikely to cause clogging.Even if the clogging occurs, since it is a straight tube, it can be checked by peeping, and if it is clogged, a thin rod can be inserted and pushed out. Easy to do.
  • the invention described in claim 41 is the vacuum cleaner according to claim 31 or 33, wherein the hand grip pipe and the hose are detachably formed. Even if the dust is clogged, the hose can be removed from the hand grip pipe, and a thin rod can remove the dust from the ventilation pipe of the hand grip pipe. In particular, this is extremely useful when the cross-sectional area of the intake passage of the ventilation pipe cannot be made large as described in claim 40.
  • the invention according to claim 42 includes a cleaner main body having a built-in electric blower, a hose having one end connected to the cleaner main body, and an extension tube or a suction tool connected to the other end of the hose.
  • the cleaner body, the hose, the extension pipe, and the suction tool each have an intake passage for intake air sucked by the electric blower, and an exhaust passage for exhaust gas discharged from the electric blower.
  • a flexible inner hose that forms the intake passage in a flexible outer hose; a space formed between the outer hose and the inner hose is an exhaust passage; and at least the outer hose and the inner This is a vacuum cleaner with both ends of the hose fixed, which can easily form an intake passage and an exhaust passage from the suction tool to the main body of the cleaner.
  • the space formed between the hose and the flexible inner hose is used as an exhaust passage, and the hose is deformed or bent during use of the vacuum cleaner.
  • the inner wall circumference of the exhaust passage is substantially longer.
  • the distance between the outer hose and the inner hose that form the exhaust passage is maximized, and the ventilation resistance of the exhaust passage can be reduced.As a result, the intake air volume and the exhaust air volume can be increased. .
  • a circular shape is preferable.
  • a circle having a larger ratio (S / L) can reduce ventilation resistance
  • the cross-sectional shape of the hose is preferably a polygon close to a circle.
  • the inner hose is movable in the outer hose in the middle part, so it can be easily bent in all directions, and the hose can be bent and drawn. Can be improved, and usability can be improved.
  • the invention described in claim 43 is characterized in that a cleaner main body having a built-in electric blower, a hose connecting one end to the cleaner main body, and an extension tube or a suction tool connected to the other end of the hose.
  • the cleaner body, the hose, the extension pipe, and the suction tool each have an intake passage for intake air sucked by the electric blower, and an exhaust passage for exhaust gas discharged from the electric blower.
  • the invention described in claim 44 is the vacuum cleaner according to claim 42 or 43, wherein at least a conductive wire is arranged in an exhaust passage of the hose, and A conductive wire can be easily wired at a low cost.
  • the invention described in claim 45 is a cleaner body having a built-in electric blower, a hose having a connection pipe connecting one end to the cleaner body, and an operation of the electric blower at the other end of the hose.
  • a hand gripping pipe having an operation unit for controlling the hand gripping pipe, and an extension pipe or a suction tool connected to the hand gripping pipe, wherein the sweeper body, the hose, the extension pipe, and the suction tool are sucked into the electric blower.
  • a conductive wire for electrically connecting the main body of the cleaner and the operating section to the outer or inner circumference of the inner hose.
  • the conductive wire is connected to the inner hose.
  • the invention according to claim 46 is the invention according to claim 45, wherein the inner hose in which the conductive wire is arranged near the spirally wound reinforcing wire,
  • This vacuum cleaner has an outer hose with a reinforcing wire wound around it, and the conductive wire pitch of the inner hose is larger than the reinforcing wire pitch of the outer hose, reducing the amount of conductive wire used and reducing the weight. be able to.
  • the invention according to claim 47 is the invention according to claim 45 or 46, wherein the conductive wire of the inner hose is a vacuum cleaner also serving as a reinforcing wire, and By using the same wire as the reinforcing wire, the weight can be reduced.
  • the invention according to claim 48 is the electric vacuum cleaner according to claim 47, wherein the conductive wire of the inner hose is formed of a hard steel wire. The wire ensures the strength of the hose and prevents the conductive wire from breaking.
  • the invention recited in claim 49 is a cleaner main body having a built-in electric blower, a hose having a connection pipe connecting one end to the cleaner main body, and an operation of the electric blower at the other end of the hose.
  • a hand gripping pipe having an operation unit for controlling the hand gripping pipe, and an extension pipe or a suction tool connected to the hand gripping pipe, wherein the sweeper body, the hose, the extension pipe, and the suction tool are sucked into the electric blower.
  • the invention described in claim 50 is the invention according to claim 45 or 49, wherein the inner hose and the outer hose are each formed in a bellows shape, and the inside of the inner hose is suctioned.
  • Vacuum cleaner with a passage the inner and outer diameter difference of the inner hose is smaller than the inner and outer diameter difference of the outer hose. If the outer hose outer shape and the exhaust passage are the same, the intake passage can be enlarged and the pressure loss of the intake air decreases. It is difficult to clog the garbage, and the weight can be reduced by reducing the material.
  • the invention according to claim 51 includes a cleaner main body having a built-in electric blower, a hose connected to one end of the main body, and an extension tube or a suction tool connected to the other end of the hose.
  • the cleaner body, the hose, the extension pipe, and the suction tool each integrally have an intake passage for intake air sucked by the electric blower and an exhaust passage for exhaust gas discharged from the electric blower.
  • the hose is made of a base material such as soft vinyl chloride and the like, and the base material also contains an additive having a higher thermal conductivity, or is formed of a material having a higher thermal conductivity than the base material, and / or A vacuum cleaner that is set to a color with good heat radiation, such as dark blue or dark brown, and configured to release part of the heat of the exhaust gas into the atmosphere along the exhaust passage of the hose.
  • the temperature of the exhaust gas can be rapidly lowered, and in particular, the deterioration of the hose temperature can be prevented, and the durability of the hose can be ensured.
  • the invention according to claim 52 includes a cleaner main body having a built-in electric blower, a hose connected to one end of the main body, and an extension pipe or a suction tool connected to the other end of the hose.
  • the cleaner body, the hose, the extension pipe, and the suction tool each integrally have an intake passage for intake air sucked by the electric blower and an exhaust passage for exhaust discharged from the electric blower.
  • the ventilation resistance distribution in the high exhaust passage, especially at the hose can be greatly reduced, and the dust-absorbing performance can be improved by increasing the intake air volume in proportion to the amount discharged to the atmosphere. it can. Since the air is released to the atmosphere along the long path of the hose, the exhaust air velocity is almost zero, and the user does not feel uncomfortable exhaust air or exhaust heat.
  • the invention according to claim 53 includes a cleaner main body having a built-in electric blower, a hose having one end connected to the main body, and an extension pipe or a suction tool connected to the other end of the hose.
  • the cleaner body, the hose, the extension pipe, and the suction tool integrally have an intake passage for intake air sucked by the electric blower and an exhaust passage for exhaust gas discharged from the electric blower, respectively.
  • the vacuum cleaner is a vacuum cleaner with a double pipe that has an intake passage inside the inner pipe and an exhaust passage between the inner pipe and the outer pipe that encloses the inner pipe. Exhaust gas can be released from the place to the atmosphere, which can efficiently dissipate exhaust heat and reduce ventilation resistance.
  • the invention according to claim 54 is the vacuum cleaner according to claim 52 or 53, wherein an outer shell of a hose constituting an exhaust passage is formed of a fibrous coating. Therefore, the air permeability can be easily adjusted.
  • the outer pipe side has a fibrous coating and high flexibility, so that the usability of the hose as a whole is very good.
  • the invention described in claim 55 is the invention according to claim 52 or 53, wherein the air pressure loss of the outer shell constituting the hose exhaust passage is: Vacuum cleaner with a large distribution at the body connection and a small distribution at the extension pipe or suction tool connection side.
  • the heat release from the outer shell of the hose that constitutes the exhaust passage, that is, the exhaust discharge, is almost uniform over the entire length of the hose. Can be.
  • the exhaust gas circulated from the main body of the cleaner is reliably guided to the exhaust pipe, which has relatively low pressure loss of the extension pipe and the suction tool, and the circulation rate increases. This eliminates the emission of large operating noise due to the concentrated emission of exhaust, thereby reducing noise and increasing the amount of circulating exhaust used for dust collection.
  • the invention set forth in claim 56 is characterized in that one end is opened, and the other end is stored in a substantially cylindrical anti-load side bracket having an exhaust port on the side of the electric motor, A load-side bracket for closing the motor is provided to constitute the motor, and an impeller for generating suction force is provided at an end of the rotating shaft of the rotor on the load-side bracket side, and the impeller has an intake port at a central portion.
  • An electric blower that is enclosed in a casing having an exhaust port on the impeller side on the outer circumference, and a cooling fan that cools the inside of the electric motor is attached to the other end of the rotating shaft, and the electric blower is built in.
  • the electric blower In a vacuum cleaner integrally having an intake passage for intake air sucked by an impeller and an exhaust passage for exhaust gas discharged from the electric blower, the electric blower has a space provided thereunder. Supported, the case The airflow discharged from the exhaust port of the engine and the exhaust port of the anti-load side bracket are once collected in different directions, then integrated, flow through the exhaust passage, and are guided to the tip of the intake passage.
  • This is a vacuum cleaner.Even if water or the like is sucked in with dust, the blower part and the motor part of the electric blower are isolated by the load side bracket, and the exhaust air from both is guided in different directions. It is possible to provide a vacuum cleaner that does not break down due to wetness, does not receive an electric shock, absorbs moisture such as water together with dust, and dries by exhaust. BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1 is a perspective view of a vacuum cleaner according to the first and sixth embodiments of the present invention
  • FIG. 2 is a bottom view of the suction tool for the vacuum cleaner
  • FIG. 3 is a vacuum cleaner according to a second embodiment of the present invention
  • FIG. 4 is a bottom view of a suction device for a vacuum cleaner according to a third embodiment of the present invention.
  • FIG. 5, FIG. 5 is a side sectional view of the vacuum cleaner suction tool according to the fourth and sixth embodiments of the present invention
  • FIG. 6 is a side cross sectional view of the vacuum cleaner suction tool of the fifth embodiment of the present invention.
  • FIG. 7 (a) is a top cross-sectional view of the connecting portion of the suction device for a vacuum cleaner according to the seventh embodiment of the present invention
  • FIG. 7 (b) is a view taken in the direction of arrow A in FIG. 6,
  • FIG. FIG. 8 is a side view of the connecting portion of the vacuum cleaner suction tool
  • FIG. 8 is a top view of the vacuum cleaner suction tool according to the seventh and eighth embodiments of the present invention
  • FIG. 9 is a line A-A of FIG. It is sectional drawing.
  • FIG. 10 is a cross-sectional view of a vacuum cleaner equipped with a telescopic pipe for a vacuum cleaner according to a ninth embodiment of the present invention
  • FIG. 11 is a cross-sectional view of the vacuum cleaner body of the vacuum cleaner
  • FIG. Sectional view of the front part of the main body of the vacuum cleaner Fig. 13 is a cross-sectional view of the hand-holding pipe of the vacuum cleaner
  • Fig. 14 is a cross-sectional view of the telescopic pipe of the vacuum cleaner
  • Fig. 15 Is a cross-sectional view of the suction tool of the vacuum cleaner
  • FIG. 16 (a) is a cross-sectional view of the vacuum cleaner having the telescopic pipe for a vacuum cleaner of the tenth embodiment of the present invention, other than the vacuum cleaner body.
  • FIG. 17 (b) is a sectional view taken along the line B_B in FIG. 16 (a)
  • FIG. 16 (c) is a sectional view taken along the line C in FIG. 16 (a)
  • FIG. 17 (a) is an extension pipe of the vacuum cleaner.
  • FIG. 17 (b) is a sectional view taken along the line D-D of FIG. 17 (a)
  • FIG. 18 (a) is a telescopic pipe for a vacuum cleaner according to the first embodiment of the present invention.
  • Fig. 18 (b) is a sectional view taken along line E_E of Fig. 18 (a)
  • Fig. 18 (c) is a sectional view of F of Fig. 18 (a).
  • FIG. 19 (a) is a sectional view of the main part of the extension pipe of the vacuum cleaner
  • FIG. 19 (b) is a section view of the line G—G in FIG. 19 (a)
  • FIG. FIG. 20 (a) is a cross-sectional view of the vacuum cleaner having the telescopic pipe for a vacuum cleaner according to the first and second embodiments of the present invention, other than the main body of the vacuum cleaner
  • FIG. 20 (b) is H_H of FIG. 20 (a).
  • FIG. 21 (c) is a cross-sectional view taken along the line I-I of FIG. 20 (a)
  • FIG. 21 (a) is a cross-sectional view of a main part of an extension pipe of the vacuum cleaner
  • FIG. 21 (b) is a cross-sectional view of FIG. ) J-J line sectional view
  • FIG. Fig. 22 (c) is a cross-sectional view taken along line L-L of Fig. 22 (a)
  • Fig. 22 (c) is a cross-sectional view of the main part of the extension pipe of the vacuum cleaner
  • Fig. 2 (a) is a sectional view taken along the line M--M in FIG. 23 (a).
  • FIG. 24 is a side view of a vacuum cleaner according to a fourteenth embodiment of the present invention
  • FIG. 25 is a side sectional view of a hand grip pipe of the vacuum cleaner
  • FIG. 26 is a view of a fifteenth embodiment of the present invention. It is a side sectional view of a hand grip pipe of a vacuum cleaner.
  • FIG. 27 is a cross-sectional view of the vacuum cleaner according to the 16th embodiment of the present invention
  • FIG. 28 is a partially cut-away cross-sectional view of a hose of the vacuum cleaner
  • FIG. 29 is a vacuum cleaner of the same vacuum cleaner.
  • Cross-section of the main unit Fig. 30 is a cross-section of the front of the main body of the vacuum cleaner
  • Fig. 31 is a cross-sectional view of the hand grip pipe of the vacuum cleaner
  • Fig. 32 is an extension of the same vacuum cleaner.
  • FIG. 33 is a cross-sectional view of the suction tool of the vacuum cleaner.
  • FIG. 34 is a sectional view of a vacuum cleaner according to a seventeenth embodiment of the present invention
  • FIG. 35 is a partially cutaway sectional view of the hose of the vacuum cleaner
  • FIG. FIG. 37 is a partially cutaway side view of the hose of another embodiment of the vacuum cleaner
  • FIG. 38 is a side view of the hose of the vacuum cleaner of the 18th embodiment of the present invention.
  • FIG. 39 is a partially cutaway side view of a hose of the vacuum cleaner
  • FIG. 40 is a cross-sectional view of a main part of a hose of a vacuum cleaner according to a ninth embodiment of the present invention
  • FIG. 1 is a partially cutaway side view of a hose of the vacuum cleaner
  • FIG. 42 is a cross-sectional view of a main part of a hose of the vacuum cleaner according to a 20th embodiment of the present invention
  • FIG. FIG. 3 is a side view of the hose with a part cut away.
  • FIG. 44 is a cross-sectional view of a vacuum cleaner according to a twenty-first embodiment of the present invention
  • FIG. 45 is a cross-sectional view of a vacuum cleaner main body of the vacuum cleaner
  • FIG. Sectional view Fig. 47 is a cross-sectional view of a hand grip pipe of the vacuum cleaner
  • Fig. 48 is a cross-sectional view of an extension pipe of the vacuum cleaner
  • Fig. 49 is a cross-sectional view of a suction tool of the vacuum cleaner
  • Fig. 50 is a perspective view of a main part of an outer hose of a vacuum cleaner according to a twenty-second embodiment of the present invention.
  • FIG. 51 is a partial sectional view of an electric blower of a vacuum cleaner according to a 23rd embodiment of the present invention
  • FIG. 52 is a sectional view of the same vacuum cleaner.
  • FIG. 53 is a sectional view of a conventional vacuum cleaner. BEST MODE FOR CARRYING OUT THE INVENTION
  • the suction device body 21 has an intake port 24 formed by an upper frame 22 and a lower frame 23, and an opening 25 is provided in the lower frame 23.
  • a rotary brush 26 for releasing dust adhering to the surface to be cleaned is installed inside the intake port 24.
  • the rotating brush 26 has a rotatable brush holder 27 and an electric motor 29 as a driving source for driving the brush holder 27 via a reduction gear 28 inside the brush holder 27. It is installed internally.
  • the main body 30 of the vacuum cleaner is provided with a dust collecting chamber 31 for collecting dust inside and an electric blower 32, and a hose 35 is connected to a connection port 33 provided in the main body 30 of the vacuum cleaner.
  • the extension pipe 34 and the connection pipe 37 of the suction tool body 21 are connected to the end of the pipe.
  • the electric blower 32 is covered with a case 47, etc., and at least a part of the exhaust 39 is provided on the cleaner body 30 by the exhaust hose 38.
  • Each of the extension pipe 34 and the hose 35 has a separate two-way ventilation path, and is further connected to a connection pipe 37 having two separate-path ventilation paths.
  • the sucked dust is collected in the dust collection chamber 31, but at least a part of the exhaust 3 9 discharged by the operation of the electric blower 3 2 includes the exhaust hose 3 8, the connection port 3 3, and the hose 3. 5.
  • the air is returned to the suction tool body 21 through the exhaust passage 41 formed by the extension pipe 34 and the connection pipe 37, and is blown from the suction tool body 21 to the surface to be cleaned.
  • the dust on the surface to be cleaned is blown off and separated from the surface to be cleaned, and the rotating brush 26 is rotated, so that the dust lurking deep in the fur on the floor surface of a carpet or the like is discharged.
  • the dust released from the surface to be cleaned rides on the air flow returning to the intake port 24 and the intake air 42 sucked from the intake port 24, and flows into the dust collection chamber 31 via the intake passage 40. Is carried.
  • the rotating brush 26 has a built-in electric motor 29 so that In addition, the diameter increases, but when the diameter increases, the peripheral speed of the dust lifting part increases when the rotation speed is the same as before, and the performance of lifting the dust from the surface to be cleaned is improved. Can be improved.
  • the operating force for moving and operating the suction tool body 21 on the surface to be cleaned is proportional to the mass of the suction tool body 21 and the suction force on the surface to be cleaned, but the mass is the position of the motor 29.
  • carpet cleaning has reduced adsorption power, and as a result, the operation can be performed lightly and the usability can be improved.
  • exhaust gas 39 containing dust is rarely discharged indoors, so that the noise reduction of the vacuum cleaner and the cleanness of the indoor space are achieved, and the electric blower 32 discharges air.
  • the method of returning the discharged exhaust 39 to the suction tool body 21 can be widely used in general household vacuum cleaners.
  • the rotating brush 26 rotatably supports both ends of the rotating brush 26 in the suction device main body 21 and at least one end thereof communicates with the exhaust passage 41 in the suction device main body 21. It is formed. Further, a vent hole 48 is formed on the outer peripheral surface of the brush holder 27.
  • the exhaust 39 discharged from the electric blower 32 passes through the exhaust passage 41, a part of which is discharged from the front of the suction tool body 21, and the other is a rotating brush 26.
  • the ventilation holes 48 formed in the outer peripheral surface of the brush holder 17 to the surface to be cleaned. Will be issued.
  • dust on the surface to be cleaned is blown off at the opening 25 and separated from the surface to be cleaned, but by blowing exhaust 39 from the rotating brush 26 to the surface to be cleaned, it spreads over a wide area and strongly to the surface to be cleaned.
  • the effect of releasing dust from the surface to be cleaned can be increased.
  • the exhaust 39 flowing into the rotating brush 26 cools the motor 29 in the rotating brush 26 with forced air, thereby suppressing the temperature rise of the winding of the motor 29.
  • the exhaust gas 39 discharged by the operation of the electric blower 32 is returned to the intake port 24 from near both ends in front of the suction tool body 21.
  • exhaust gas 39 discharged from the electric blower 32 passes through the exhaust passage 41 and is blown from the vicinity of both ends in front of the suction tool body 21 to the surface to be cleaned.
  • dust on the surface to be cleaned is blown off inside the air inlet 24 and is separated from the surface to be cleaned, and the rotating brush 26 is further rotated, so that it is buried deep in the fur on the floor of a carpet or the like. Dust out. Dust released from the surface to be cleaned is taken from the discharge section 4 4 to the intake port 2 4 and flows into the dust collection chamber 3 1 via the intake air 4 2 which flows through the airflow.
  • the opening (2) (5) By spraying from the vicinity of both front ends to the surface to be cleaned and returning to the air inlet (24), the opening (2) (5) can pass through the entire surface to be cleaned on the lower surface and blow off dust on the surface to be cleaned.
  • the ability to transfer to 24 can be increased, and the dust collection performance can be improved.
  • a dust lifting portion 43 provided on the outer peripheral surface of the rotating brush 26 is formed in a substantially V shape along the longitudinal direction of the peripheral surface of the rotating brush 26,
  • the exhaust 39 discharged by the operation of the electric blower 32 is recirculated toward the V-shaped valley of the lifting section 43.
  • exhaust gas 39 discharged from the electric blower 32 passes through the exhaust passage 41 and is blown from the front of the suction tool body 21 to the surface to be swept.
  • the dust on the surface to be cleaned is blown off inside the air inlet 24 and is separated from the surface to be cleaned, and the rotating brush 26 is further rotated, so that the dust lurking behind the hairs on the floor of a carpet or the like. Find out. Dust released from the surface to be cleaned is sucked into the dust collecting chamber 3 1 by the intake air 4 2 flowing back from the discharge section 4 4 to the intake port 24, and is transported into the dust collection chamber 31.
  • the exhaust 39 is blown from the vicinity of both ends in front of the suction tool body 21 to the surface to be cleaned, and is returned to the intake port 24 to pass through the surface to be cleaned under the opening 25.
  • Dust is blown off and transferred to the intake port 24, but the dust lifter 43 provided on the outer peripheral surface of the rotating brush 26 has a substantially V-shaped shape along the longitudinal direction of the peripheral surface of the rotating brush 26.
  • the V-shaped valley is closer to the intake port 24 than both ends of the dust pumping section 4 3, so that the exhaust gas returned to the intake port 24
  • the dust flows efficiently to the suction part 24 along the V-shaped part of the rotating brush 26 dust-raising part 4 3, thereby improving the dust collection performance and allowing the airflow to flow smoothly. Noise can be reduced.
  • the exhaust 39 discharged by the operation of the electric blower 32 is recirculated toward the vicinity of the center of the intake port 24.
  • the exhaust air 39 discharged from the electric blower 32 passes through the exhaust passage 41, and the surface to be cleaned is directed from the vicinity of both ends in front of the suction tool body 2 1 to the vicinity of the center of the intake port 24. Is sprayed on.
  • dust on the surface to be cleaned is blown off inside the air inlet 24 and is separated from the surface to be cleaned, and the rotating brush 26 is further rotated, so that the dust lurking behind the hairs on the floor of a carpet or the like. Find out. Dust released from the surface to be cleaned
  • the intake air returning from the intake to the intake port is carried into the dust collection chamber, but the exhaust is transported to the suction tool body near the center of the intake port near the center of the intake.
  • the flow velocity of the airflow that is recirculated and sucked into the intake port 24 is increased, the ability to blow off dust on the surface to be cleaned and transported to the intake port 24 is increased, and the dust pumping section 4 3
  • the fiber dust adhering to the air is blown away and transferred to the air inlet 24 while cleaning, thereby improving the overall dust collection performance.
  • FIG. 4 the exhaust 39 discharged by the operation of the electric blower 32 is returned to the intake port 24 from near the center in front of the suction tool body 21.
  • the exhaust 39 discharged from the electric blower 32 passes through the exhaust passage 41 and is blown from the vicinity of the center in front of the suction tool body 21 to the surface to be cleaned.
  • exhaust gas 39 discharged by the operation of the electric blower 32 is recirculated from the vicinity of the rotation center of the rotary brush 26 above the suction tool main body 21 to the suction port 24.
  • exhaust gas 39 discharged from the electric blower 32 passes through the exhaust passage 41 and returns to the intake port 24 from near the upper part of the suction tool body 2 1 at the center of rotation of the rotating brush 26. Let it. As the rotating brushes 26 rotate, dust lurking behind the hairs on the floor, such as carpets, is extracted.
  • the loosened dust and the dust attached to the dust lifting section 43 of the rotating brush 26 are blown off by the exhaust 39 and are sucked into the intake port 24.
  • dust can be prevented from adhering to the dust lifting section 43 and the blown dust is immediately sucked into the suction port 24 without being scattered.
  • the exhaust air 39 discharged by the operation of the electric blower 32 is blown out from the upper part of the suction tool main body 21 near the rotation center of the rotary brush 26 in the rotation direction of the rotary brush 26 and returned to the intake port 24.
  • the dust raised from the floor surface by the rotation of the rotating brush 26 and the dust adhered to the dust lifting portion 43 of the rotating brush 26 Dust is blown out by the exhaust air that blows out in the rotating direction of the rotating brush 26 and is sucked into the intake port, thereby preventing dust from adhering to the dust lifting section 43 and preventing the blown dust from scattering to other parts.
  • it can be sucked into the intake 24 immediately.
  • exhaust gas 39 discharged by the operation of the electric blower 32 is discharged substantially parallel to the surface to be cleaned toward the surface to be cleaned.
  • a shielding plate 45 is provided opposite to a discharge portion 44 for discharging the exhaust 39 from the electric blower 32 to the suction device main body 21.
  • exhaust gas 39 discharged from the electric blower 32 passes through the exhaust passage 41 and is blown from the discharge portion 44 of the suction tool body 21 to the surface to be cleaned. Dust released from the surface to be cleaned rides on the airflow 42 flowing back from the discharge section 4 4 to the intake port 24 and is carried into the dust collection chamber 31, but is exhausted from the electric blower 32.
  • the shielding plate 45 prevents the blown dust from flowing out between the lower surface of the suction tool body 2 1 and the surface to be cleaned in the direction opposite to the discharge section 4 4. Prevention and improvement of dust collection performance can be realized.
  • FIG. 1 The same components as those in the above-described embodiment are denoted by the same reference numerals and described. Description is omitted.
  • the cleaner body 30 incorporating the electric blower 32, the hose 35 having one end connected to the cleaner body 30, and the hose 35
  • An extension pipe 34 or a suction tool main body 21 connected to the other end of the suction pipe is provided.
  • the vacuum cleaner body 30, hose 35, extension pipe 34, and suction tool body 21 are discharged from the intake passage 40 of the intake air 42 sucked by the electric blower 32 and the electric blower 32.
  • Each of the air blowers has an exhaust passage 41 for the exhaust 39, and at least a part of the exhaust 39 from the electric blower 32 is recirculated to the suction tool main body 21.
  • the connection pipe 37 of the suction tool body 21 connected to the extension pipe or the hose 35 has two separate ventilation paths, and forms an intake path 40 below.
  • the rotation of the rotating brush 26 lifts up dust adhering to the surface to be cleaned, and the lifted up dust flows from the intake port 24 to the extension pipe 34 and the intake passage 40 of the hose 35. Is sucked into the dust collecting chamber 31 of the vacuum cleaner main body 30 by way of. Then, the sucked dust is collected in the dust collection chamber 31, but at least a part of the exhaust 39 discharged by the operation of the electric blower 32 is formed by the exhaust hose 38, the connection port 33, and the hose. The air is returned to the suction tool body 21 by the exhaust passage 41 formed by the extension pipe 34 and the connecting pipe 37, and is blown from the suction tool body 21 to the surface to be cleaned.
  • connection pipe 37 of the suction tool main body 21 has two separate ventilation paths, and the intake path 40 is formed below, the rotating brush 26 rotates from the floor surface so that ⁇ ⁇ ⁇ It is not necessary to suck up the raised dust to a high position, and it is easy to suck in relatively large or heavy dust.
  • FIGS. 7 and 8. explain. Note that the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
  • the exhaust passage 4 1 is formed in the vicinity of the center of rotation of the connecting portion 36 that pivots up and down and connects the connecting pipe 37 and the suction tool body 21 rotatably. Is provided.
  • the intake passage 40 of the connecting portion 36 that rotates vertically and connects the connecting pipe 37 and the suction tool body 21 has a trumpet shape in consideration of noise reduction as shown in FIG. Therefore, a space is formed around the rotation center portion 36a corresponding to the outside of the intake passage 40.
  • the connecting part 36 is as shown in Fig. 7 (b).
  • the upper frame body 22 and the lower frame body 23 are sandwiched about the axis and fixed so as to be rotatable up and down.
  • Around the center of rotation 36 a is a connecting part 36 itself and the upper frame body 2 2 And a lower space formed by the lower frame 23.
  • the position around the center of rotation 36a does not fluctuate relative to the suction tool body 21 even when it is rotated up and down.
  • the connecting portion 36 can be provided with the exhaust passage 41 that does not leak the exhaust 39 from the exhaust passage 41 and can easily communicate with the exhaust passage 41 of the suction tool main body 21.
  • FIGS. Note that the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
  • the exhaust passage 41 of the suction device main body 21 is connected to the upper frame 22 and the lower frame.
  • the frame 23 is formed.
  • the exhaust passage 41 of the suction device body 21 is connected to the upper frame 22 and the lower frame 22.
  • the exhaust passage 41 of the suction tool main body 21 can be formed at low cost without using a separate part or the like.
  • connection pipe 53 of the hose 54 connects to the connection port 53 of the vacuum cleaner body 51, and connect it to the hand grip pipe 56 at the other end of the hose 54.
  • the telescopic pipe 58 connected with the suction tool 57 is connected.
  • An electric blower 52 is built in the rear side of the vacuum cleaner body 51, and a dust collecting chamber 59 is provided between the connection port 53 and the electric blower 52.
  • the soundproof cylinder 60 covers the electric blower 52, and one end of an exhaust pipe 61 is connected to the outer peripheral surface of the soundproof cylinder 60.
  • the exhaust pipe 61 has a bellows-like portion in a part, and has flexibility as a whole. The other end of the exhaust pipe 61 is connected to the connection port 53 side, and a part of the exhaust gas discharged by the operation of the electric blower 52 is guided to the connection port 53 side on the other end side.
  • a substantially cylindrical exhaust inlet 63 is formed integrally.
  • the connection pipe 55 has a two-layer pipe structure in which an intake passage is formed on the inner periphery and an exhaust passage is formed on the outer periphery, a lid 65 covering the outer periphery of the connection pipe 64, and a connection pipe. It has a buckle 66 sandwiched between the cover 64 and the lid 65, and a rotating pipe 67 whose one end is rotatably connected to the connecting pipe 64.
  • the rotary pipe 67 has a two-layer pipe structure in which an intake passage is formed on the inner periphery and an exhaust passage is formed on the outer periphery, and the exhaust passage between the rotation pipe 67 and the connection pipe 64 is formed. And the exhaust passages are rotatably connected to each other.
  • the buckle 66 is urged by a spring 68 to removably lock the connection pipe 55 to the connection port 53.
  • the rotary pipe 67 is rotatable around the longitudinal axis of the connecting pipe 55, and prevents the hose 54 from being twisted during use.
  • the inside of the inner pipe 69 of the connecting pipe 64 and the inner pipe 70 of the rotating pipe 67 are air-tightly communicated with the evening packing 71, and the outer periphery of the inner pipe 69 and the outer periphery of the inner pipe 70
  • the department is also airtightly communicating.
  • On the upper surface of the connecting pipe 64 on the outer peripheral side of the rotating pipe 67 fixed contacts 72 are fixed side by side in the front-rear direction.
  • the fixed contact 72 is electrically connected to a plurality of connection terminals (not shown) sandwiched between the rotating pipe 67 and the lid 65. Clean the connection terminals with the connection pipe 6 4 connected to the connection port 5 3 Electrically connect to terminals (not shown) located on the main unit 51.
  • the same number of rail terminals 73 are arranged so as to be opposed to the fixed contact 72 and held on a substantially cylindrical rail base 74.
  • the rail base 74 is fixed to the outer peripheral side of the rotating pipe 67.
  • the rotating pipe 67 rotates around the longitudinal axis of the connecting pipe 55
  • the rail base 74 rotates together with the rotating pipe 67, and the fixed contact always remains.
  • the rail terminals 73 maintain the electrical connection.
  • the hose 54 has a two-layer hose structure containing an inner hose 76 whose outer diameter is smaller than the inner diameter of the outer hose 75.
  • One end of the inner hose 76 is opposite to the inner pipe 70 of the rotating pipe 67.
  • the outer pipe 75 is wrapped around the connecting pipe 64, and one end of the outer hose 75 is wrapped around the outer peripheral surface of the rotating pipe 67 on the opposite connecting pipe 64, so that they are airtightly connected.
  • the hand gripping pipe 56 has a two-layer pipe structure composed of an inner pipe 77A enclosing the other end of the inner hose 76 and an outer pipe 77B enclosing the other end of the outer hose 75.
  • the bent pipe 78 is divided into two upper and lower passages by an inner wall 84, the intake passage 85 is air-tightly connected to the inner pipe 77A of the connecting pipe 77, and the exhaust passage 86 is connected to the connecting pipe. It is airtightly connected to the passage between the inner pipe 77A and the outer pipe 77B of 77.
  • the conductor 87 is introduced between the outer hose 75 and the inner hose 76 from between the outer hose 75 and the wrapping portion on the outer peripheral surface of the rotating pipe 67, The other end is led out from the outer hose 75, the outer tube 77 B of the connecting tube 77 and the outer hose 75 covering portion, and is connected to the switch board 80 through the component housing portion 79.
  • the telescopic pipe 58 holds the second vent pipe 89 in a slidable manner within the first vent pipe 88 that is detachably locked to the bent pipe 78 of the hand gripping pipe 56, The distal end of the ventilation pipe 89 holds the connection pipe 90 of the suction tool 57 in a detachable manner.
  • the first ventilation pipe 8 8 has an inner wall 9 1 and upper and lower two-layer ventilation path, that is, an intake path 8 5 And an exhaust passage 86.
  • the second ventilation pipe 89 is separated into a ventilation pipe 92 and a ventilation pipe 93, the ventilation pipe 92 forms an exhaust passage 94, and the ventilation pipe 93 forms an intake passage 95.
  • the ventilation pipe 92 and the ventilation pipe 93 are arranged with a gap in the axial direction, and one end of the ventilation pipe 92 is slidable in the axial direction in the exhaust passage 86 of the first ventilation pipe 88. And is connected to the exhaust passage 86.
  • one end of the ventilation pipe 93 is inserted slidably in the axial direction inside the intake passage 85 of the first ventilation pipe 88, and is connected to the intake passage 85.
  • the conductor 96 is accommodated in the exhaust passage 94 of the ventilation pipe 92 and the exhaust passage 86 of the first ventilation pipe 88. Connection terminals (not shown) are connected to both ends of the conductor 96.
  • the gripping pipe 56 and the suction tool are connected. It is in a state of being electrically connected to the connection terminal (not shown) provided at 57.
  • the conductor 96 may be either one whose surface is protected by an insulating coating or one that is not protected.
  • the push button 97 has a locking projection 99 that moves up and down in conjunction with the vertical operation of the push button 97, and the locking projection 99 is provided in a gap between the ventilation pipe 92 and the ventilation pipe 93.
  • the lower surface of the ventilation tube 92 that is, the surface facing the ventilation tube 96, is indirectly engaged with a plurality of locking recesses 98 formed at predetermined intervals in the axial direction.
  • the locking protrusions 9 and the locking recesses 98 By the locking protrusions 9 and the locking recesses 98, the allowance of the second ventilation pipe 89 relative to the first ventilation pipe 88 can be adjusted to a convenient length for the vacuum cleaner user.
  • the shape of the joint between the telescopic pipe 58 and the gripping pipe 56 and the connection between the suction tool 57 and the telescopic pipe 58 are formed in the same shape. It can be used by connecting the suction device 57.
  • a rotating brush 101 having a built-in electric motor 100 is rotatably held.
  • the rotating brush 1001 is driven to rotate by a built-in electric motor 100, and its rotation is transmitted through a speed reducer (not shown), and rotates at about 150 rotations per minute.
  • the rotating brush 101 faces the suction opening 102 provided on the lower surface, and a plurality of blades 103 and brushes 104 mounted on the peripheral surface lift up dust adhered to the cleaning surface.
  • the dust suction port 105 is formed behind the rotating brush 101, and communicates with a connecting cylinder 106 that can be vertically raised and lowered.
  • the suction tool pipe 107 is connected to the connecting cylinder 106 so that it can rotate freely by a fixed angle in the left and right direction.
  • the lower intake passage 109 communicates with the connecting cylinder 106 at the front and the intake passage 95 of the telescopic pipe 58 at the rear.
  • the upper exhaust passage 110 communicates with the exhaust passage 94 of the telescopic pipe 58 at the rear, while the flexible tube 111 at the front has a bypass (exhaust passage) formed from the top to the front of the suction device. It is through 1 1 2, and an exhaust port 1 1 3 is formed at the end of the bypass 1 1 2. Then, the exhaust gas discharged by the operation of the electric blower 52 is discharged from the exhaust port 1 13 of the bypass 112 in the direction of the suction opening 102.
  • the collected dust is an intake air flow generated by the suction of the electric blower 52, and the intake passage 10 of the suction opening 102, the suction opening 105, the connecting cylinder 106, and the suction pipe 107.
  • second vent pipe 8 9 intake passage 95, first vent pipe 88 and bent pipe 78 intake passage 85, inner hose 76, rotating pipe 67 inner pipe 70 connection It is transferred into the dust collection chamber 59 via the inner pipe 69 of the pipe 64 and accumulated there.
  • the clean airflow from which the dust is separated passes through the electric blower 52 and is discharged into the soundproof cylinder 10.
  • At least a part of this exhaust gas is introduced between the inner pipe 69 of the connection pipe 64 and the outer circumference of the connection pipe 64 via the flexible pipe 111, the exhaust port 113, and the through hole 115.
  • Exhaust passage 86 of bent pipe 47 and first vent pipe 88, exhaust passage of suction tool 57, exhaust pipe 110, flexible pipe 111, bypass 110 The opening is discharged in the direction of 102.
  • the recirculated exhaust gas reduces the degree of close contact between the suction tool 57 and the surface to be cleaned, thereby reducing the moving operation force of the suction tool 57.
  • dust on the surface to be cleaned is blown and transferred in the direction of the dust inlet 105, and the dust collecting performance is improved by a synergistic effect with the rotation of the rotating brush 101.
  • the telescopic pipe 58 connects the vent pipe 92 to the exhaust passage 8 of the first vent pipe 88. 6 and slidably held in the exhaust passage 94 to communicate with the exhaust passage 94, and the vent pipe 93 is slidably held in the intake passage 85 of the first vent pipe 88.
  • the shape of the intake passage 95 which is not affected by the shape of the exhaust passage 94, is ensured, and a smooth flow of refuse can be obtained, while maintaining airtightness.
  • a smooth sliding property can be obtained so as to be able to expand and contract.
  • the holding device consisting of the push button 97, the locking recess 98, and the locking projection 99 allows the user to reduce the length of the telescopic pipe 58 to a length that is easy to clean in his own posture.
  • the telescopic tube 58 can be adjusted and held so that it can be extended and retracted.
  • the telescopic tube 58 can be contracted and stored in a compact when stored, so that usability can be improved.
  • a part of the holding device is provided between the ventilation pipe 92 and the ventilation pipe 93, and a plurality of locking recesses 98 are formed on the lower surface of the ventilation pipe 92. Because it is not exposed to the outside, the appearance of the telescopic pipe 58 can be improved in terms of its commercial value, and the locking recess 98 does not protrude into the intake passage 95, so that the flow of air through the intake passage is smooth. The ventilation loss is reduced, the flow rate can be increased, and the flow of dust is not obstructed.
  • the exhaust passage 94 of the ventilation pipe 92 and the exhaust passage 86 of the first ventilation pipe 88 are passages through which the conductor 96 passes, there is no need to provide a dedicated conductor storage section.
  • the configuration can be simplified, the number of parts can be reduced, and costs can be reduced.
  • the conductor 96 is formed in a spiral shape so as to be able to expand and contract, the conductor 96 expands and contracts in accordance with the expansion and contraction of the telescopic pipe 58, and strong tension is not applied to the conductor 96. There is no disconnection.
  • the exhaust passage of the present embodiment is a conductor passage and the conductor is helical
  • the exhaust passage in each embodiment described later is a conductor passage and the conductor is helical. Needless to say, the same effect as the effect can be expected.
  • FIG. 16 and 17 The same components as those in the ninth embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • the second ventilation pipe 1 16 is partitioned into two upper and lower air passages by an inner wall 1 17.
  • First ventilation pipe 1 1 8 has cylindrical ventilation inside A pipe 120 is provided, and the ventilation pipe 120 is held by a rib 122 from the first ventilation pipe 118 near the end on the hand grip pipe 56 side. Therefore, the other end of the ventilation pipe 120 is a free end, and this free end is inserted into the upper ventilation path of the second ventilation pipe 116.
  • the second ventilation pipe 1 16 enters the inside of the first ventilation pipe 1 18, and is tightly connected to and tightly slidably held by the tight packing 122, thereby forming the intake passage 123. ing. Further, the ventilation pipe 120 enters the upper passage of the second ventilation pipe 116, communicates with the tight packing 124 in an airtight manner, and is slidably held to form an exhaust passage 125. I have.
  • a thread portion 1 28 is provided on the outer peripheral side of the front end of the first ventilation pipe 1 18, and a thread portion 1 2 7 screwed to the thread portion 1 28 on the inner peripheral surface of the cylindrical adjustment ring 1 26. Is provided.
  • An elastic seal body 129 is fitted on the inner peripheral side of the adjustment ring 126.
  • the inner peripheral surface of the seal body 1 29 is in contact with the outer peripheral surface of the second ventilation pipe 1 16, and by tightening the adjustment ring 126,
  • the vent pipe 1 16 can be fixed and adjusted to a convenient length position for the user.
  • the two air passages namely, the intake passages 123 and the exhaust passages 125 can be separated and airtight, and the second air passages 116 can be smoothly extended and contracted smoothly.
  • the holding device consisting of the adjusting ring 1 26 and the sealing body 1 29 allows the user to freely adjust and hold the length of the telescopic pipe to a length that is easy for the user to clean and easy to clean.
  • the telescopic pipe 58 can be contracted and stored compactly, so that usability can be improved.
  • the intake passage can be formed on the lower side in the first ventilation pipe 118, and the passing dust, especially the mass When the large garbage is slid down the inner surface of the telescopic pipe by gravity and sucked into the cleaner body, it can be structured to be less caught and clogged.
  • both the second ventilation pipe 1 16 and the first ventilation pipe 1 18 can form two ventilation passages inside one pipe, the external appearance of the telescopic pipe 58 can be improved. it can. It is needless to say that a similar effect can be obtained by providing such a structure in the telescopic pipe 58 whose length can be adjusted by the push button 97 described in the ninth embodiment.
  • FIG. 18 The same components as those in the ninth embodiment or the tenth embodiment are denoted by the same reference numerals, and description thereof will be omitted.
  • the first ventilation pipe 130 has a small-diameter pipe 131 inside, and is held by the ribs 132 from the first ventilation pipe 130. It is supported near the end of the tube 56, and the other end is a free end.
  • the second ventilation pipe 13 3 has a small diameter pipe 13 4 provided inside, and is supported near the end on the suction tool 57 side by a rib 135 from the second ventilation pipe 133, and the other. The end side is a free end.
  • the outer circumference of the second ventilation pipe 133 enters the inside of the first ventilation pipe 130, and the small diameter pipe 1 31 enters the inside of the small diameter pipe 134.
  • the arrangement of the small diameter pipes 1 3 4 and 1 3 1 is eccentric from the center axis of the second ventilation pipe 1 3 3 and the first ventilation pipe 1 3 0 by the length d, and the small diameter pipe 1 3
  • the exhaust passage 1 3 7 outside the 4 and the small pipe 1 3 1 closer to the center where the pipe resistance is lower and the flow velocity is faster than the outer circumference, ventilation loss is reduced and the flow rate can be increased.
  • an exhaust passage 1 10 can be formed above the suction device 5 7, and exhaust air can be exhausted by the exhaust port 1 1 of the suction device 8.
  • the exhaust air is discharged forward from 3, and the exhaust air blows and transfers the dust on the cleaning surface toward the dust suction port, so that the dust collecting performance can be improved by a synergistic effect with the rotation of the rotating brush 101.
  • two ventilation passages can be formed inside one pipe, so that the external appearance of the telescopic pipe 58 can be improved.
  • FIG. 20 and 21 The same components as those in the ninth to eleventh embodiments are denoted by the same reference numerals, and the description thereof is omitted.
  • the first ventilation pipe 130 has a small-diameter pipe 131 inside, and is held by the ribs 132 from the first ventilation pipe 130. It is supported near the end of the tube 56, and the other end is a free end.
  • the second vent pipe 13 3 has a small diameter pipe 13 4 provided inside, and is supported near the end on the side of the suction tool 57 by ribs 13 5 from the second vent pipe 13 3. The end side is a free end.
  • the outer periphery of the second ventilation pipe 133 enters the inside of the first ventilation pipe 130, and the small diameter pipe 134 enters the inside of the small diameter pipe 131.
  • Tight packing 1 2 4 airtightly communicates and slidably holds, forming two ventilation passages that pass through the inside and outside of small diameter tube 1 3 1 and small diameter tube 1 3 4, and intake passage 1 inside 3 and the outside is the exhaust passage 13.
  • the second vent pipe 1 39 is the first vent pipe 1 40 It enters inside and is slidably held by airtight communication with evening packing.
  • a small-diameter small pipe 1 41 shorter than the first ventilation pipe 140 is gripped by the ribs 144 from the first ventilation pipe 140. It is supported near the pipe 56 end. Also, the second vent pipe 1 3 9 is the second vent pipe
  • a small-diameter tube 14 3 shorter than 13 9 is provided inside, and is supported near the end on the suction tool 57 side by a rib 144 from the second ventilation tube 13 9.
  • At least a part of the inside of the second ventilation pipe 13 9 and the inside of the first ventilation pipe 140 is provided with a flexible pipe 14 5 made of a bellows-shaped and stretchable flexible material. Both ends of the flexible tube 144 are enclosed in the outer peripheral surface of the small-diameter tube 141 and the small-diameter tube 144 and are connected in an airtight manner. With such a double-pipe structure, two ventilation passages 146 passing inside and outside the flexible pipe 145 are formed.
  • the flexible pipes 144 in the double pipe structure are made of a stretchable flexible material, the weight is reduced as compared with a configuration in which two resin pipes are combined and slidably stretched. And the operating force at the time of expansion and contraction sliding can be reduced by reducing the fitting sliding area. Further, compared with the configuration of the above-described eleventh embodiment, the number of sliding parts is reduced, so that air tight packing for the sliding parts can be reduced, and the cost can be reduced. Furthermore, because of the double-pipe structure, two ventilation passages can be formed inside one pipe, so that the external appearance of the telescopic pipe 58 can be improved.
  • the cleaner body 15 1 has a built-in electric blower 15 2 and forms a dust collection chamber 15 3 for collecting dust sucked in front of the electric blower 15 2.
  • One end of a flexible hose 155 is connected detachably.
  • the extension tube 157 is detachably connected to the hand gripping pipe 156, and the suction tube 158 is detachably connected to the end of the extension tube 157.
  • the hand grip pipe 156 has a straight pipe-shaped vent pipe 159 and a handle part 160 formed to branch upward and backward from the vent pipe 159.
  • the handle part 160 has an extended part 16 1 provided above the ventilation pipe 159 and a grip part formed by bending the rear part of the extended part 16 1 toward the hose 150 side. have.
  • the extension part 16 1 and the grip part 16 2 may be molded integrally with the ventilation pipe 15 9, or the grip part 16 2 itself may be attached to the ventilation pipe 15 9 as a separate body. Good ..
  • an opening is provided above the extension part 16 1 and the grip part 16 2. Is provided, and the opening is closed with a lid 163.
  • the upper surface of the extending portion 161 is an inclined surface, and the operating portion is provided on the inclined surface.
  • the operation unit includes an operation unit that sets the operation and stop of the electric blower.
  • the operation unit of the switch of the substrate 164 is operable via the operation unit of the lid 163 which is located and closes the upper opening.
  • a hose connection portion 165 for connecting the hose 155 is formed, and the hose connection portion 165 is covered by the hose 155. Further, one end of the hose 155 connected to the hose connecting portion 165 is covered with a tubular hose cover 166.
  • the conductive wire 155 a provided on the hose 155 is electrically connected to the conductive wire 167 connected to the board 164 near the hose connection portion 165, and the hose cover -1
  • the conductive wire 167 is led out to the hose connection portion 165 side through a space formed between the rear end portion of the ventilation tube 159 and the airflow tube 166.
  • the front side (the side connected to the extension pipe 157) and the rear side (the side connected to the hose 155) have the axis of the pipe at the front pipe axis A.
  • the rear pipe axis B is shifted downward by a.
  • the holding part 16 2 is bent toward the hose 15 5 from above the hose connection part 16 5, and when holding the holding part 16 2 with one hand, the hose cover is placed under this hand.
  • the hoses 1 5 5 not covered by 1 6 6 are formed to be located.
  • the gripping portion 162 when gripping the gripping portion 162 at a height of about 80 cm from the surface to be cleaned, the gripping portion 162 is formed so as to rise forward.
  • the height of 80 cm from the surface to be cleaned is the standard height that the user can use most easily.
  • the ventilation pipe 1559 of the hand gripping pipe 1556 is formed as a straight tube, the core only needs to be straight at the time of mold production, and the cost of the mold can be reduced, so it is inexpensive. Products can be provided. Further, since there is no bent portion, the flow of the intake air is smooth as shown by the arrow in FIG. 25, and the suction force can be kept high.
  • the extension tube 157 is also cleaned. It can be tilted to a position substantially parallel to the surface. In other words, grasping the hand gripping pipe 15 6 connected to the other end of the extension pipe 15 7, and moving the gripping pipe 15 6 closer to the surface to be cleaned, the extension pipe 15 7 falls as it approaches the surface to be cleaned. Even if the extension pipe 157 is tilted to a position substantially parallel to the surface to be cleaned, the ventilation pipe 159 of the hand gripping pipe 156 is a straight pipe, so that the hand gripping pipe 156 passes through.
  • the hose 155 can be shifted to the surface to be cleaned. Only the inclination angle of the gripping part 162 (the inclination angle of the gripping part 162 with respect to the axis of the ventilation pipe 159) can be increased, pushing operation can be improved, and the inclination angle of the gripping part 162 can be increased. Even with this, it is possible to prevent the hand holding the gripper 16 2 from touching the hose 1 55. In addition, when the inclination angle of the gripping portions 16 2 is the same, the highest point of the gripping portions 16 2 can be lowered toward the surface to be cleaned by an amount that deviates from the highest point. Can be reduced.
  • a hose cover 1 6 6 is covered under the hand holding the grip 1 6 2
  • the hose 155 drops down due to gravity to the surface to be swept, and the gap between the gripper 162 and the hose 155 increases. Even if the interval between the hoses 155 is set to a small value, the hand does not touch the hose 155, so that the gripping feeling does not deteriorate.
  • the gripper 16 2 is swung left and right, such as to change the direction of the suction tool 1 58, the hose 1
  • the angle 0 is provided as shown in FIG. 24, and the grip 16 2 is formed so as to rise forward. Even when using the straight pipe-type hand gripping pipe 15 6, the wrist is turned upward when the gripping section 16 2 is gripped, and the extension pipe 1 57 is easily pushed forward.
  • an intake passage 169 and an exhaust passage 170 are formed in a straight tubular ventilation tube 168 of the hand gripping pipe 156, and the front side of the ventilation tube 168 On the extension pipe side, an intake passage 169 and an exhaust passage 170 are composed of upper and lower layers by a partition plate 171.
  • the rear side (hose 1555 side) of the ventilation pipe 1668 is connected to a double-structured hose 174 consisting of an outer hose 172 and an inner hose 173 passing inside.
  • a small diameter inner hose connection 1 75 and an outer hose connection 1 76 larger than the inner hose connection 1 ⁇ 5 are formed.
  • the rear side of the inner hose connection 1 75 is tubular and forward. The side is deformed into a shape that fits into the lower-layer exhaust passageway 170 separated by the partition plate 171 of the ventilation pipe 168.
  • the rear side of the outer hose connection part 176 is tubular, and the front side is deformed into a shape that fits into the upper intake passage 169 partitioned by the partition plate 171, and these inner hose connections are made.
  • Part 1 7 5 and outer hose connection 1 7 6 are vent pipes 1
  • a hose attaching / detaching portion 1 7 7 which is detachably attached to the rear of 6 8 constitutes.
  • the inner hose connection portion 175 projects rearward from the outer hose connection portion 176 to facilitate connection of the inner hose 173 to the inner hose connection portion 175.
  • Outside Ho The outer hose 1 72 is connected to the connector 1 76, but a connector 1 78 is attached to the end of the conductive wire 1 72 a attached to the outer hose 1 72, and the board 1 64 is connected.
  • the connector is electrically detachably connected to a connector 178 provided on the electric wire 167.
  • An engagement portion 179 is formed at the rear end of the vent pipe 168 of the hand gripping pipe 156, and the front end of the hose attachment / detachment portion 177 corresponding to the engagement portion 179 is formed. Is provided with an engaging claw 180, and a hand gripping pipe 1556 and a hose 1555 are detachably formed.
  • the outer periphery of the hose attachment / detachment part 17 7 is covered with a hose cover 16 6, and a conductive wire 17 2 a connector 17 8 is provided inside the hose cover 16 6.
  • the hose 174 is connected to the intake passage 169 and the exhaust passage 175 in order to provide an exhaust-circulation type vacuum cleaner in which the exhaust of the electric blower 152 is sent to the suction device 152 side. It has a double structure, and the hand grip pipes 15 and 6 also constitute the intake passage and exhaust passage in the same way, and the electric cleaner 1
  • a partition plate for vertically dividing the inside of the extension pipe 157 is extended in the axial direction to form a suction passage and an exhaust passage of two layers, upper and lower.
  • the core may be straight when manufacturing the mold, and the cost of the mold can be reduced compared to the case where the vent pipe is bent. Inexpensive products can be provided.
  • the size of the suction passage 169 is also limited because the ventilation pipe 168 of the hand gripping pipe 156 cannot be made unnecessarily large.
  • the cross-sectional area can be made smaller than the cross-sectional area of the intake passage 169. If the design emphasizes the suppression of dust clogging, By replacing the intake passage 169 and the exhaust passage 170 of the embodiment, heavy debris may flow into the lower intake passage 169, and the cross-sectional area may be designed to be large.
  • the partition plate 17 1 of the intake passage 169 and the exhaust passage 170 may be divided in any manner up and down or left and right, and may be concentric cylindrical, that is, a double pipe passage.
  • the arrangement positions may be up, down, left, right, inside and outside.
  • the hand grip pipe 1556 and the hose 174 are detachable, even if the air intake passage 169 becomes clogged with dust, remove the hose 1774 from the hand grip pipe 1556 and use a thin rod. By piercing the straight tubular intake passage 169 of the grip handle pipe 156 or the straightened hose 155, the clogging of dust can be more easily eliminated.
  • a detachable configuration of the hose 174 a combination of providing an engaging claw 180 on the hand gripping pipe 156 and an engaging portion 179 on the hose 174 may be used. It is only necessary that the hose and the hose 1 7 4 be removable.
  • FIG. 27 a sixteenth embodiment of the present invention will be described with reference to FIGS. 27 to 33.
  • the vacuum cleaner body 18 1 has a built-in electric blower 18 2, and a connection pipe 18 3 connected to one end of a hose 18 4 at a connection port 18 3 of the vacuum cleaner body 18 1. (Pipe) 18 5 are connected.
  • the extension tube 188 connected to the suction tool 187 is connected to the hand grip pipe (pipe) 186 connected to the other end of the hose 184.
  • the intake passage 189 is a passage through which the intake air is sucked by the electric blower 182 from the suction device 187 through the extension tube 188 and the hose 184, and the suction device 187, extension It is provided in the long pipe 188, the hose 184, and the cleaner body 181 respectively, and is connected as one intake passage 189.
  • the exhaust passage 190 is a passage through which the exhaust air discharged from the electric blower 18 2 passes from the cleaner main body 18 1 through the hose 18 4 and the extension pipe 18 88 toward the suction device 18 87.
  • the vacuum cleaner body 181, the hose 1884, the extension pipe 1888, and the suction tool 187 are provided respectively, and are connected as one exhaust passage 190.
  • the sectional area of the intake passage 189 is made larger than the sectional area of the exhaust passage 190.
  • the hose 184 is provided with a flexible outer hose (preferably an outer hose having a bellows-like flexibility with emphasis on flexibility).
  • a flexible inner hose 192 that forms the intake passageway 1889 is located between the inner surface and the inner surface of the hose 191, and a space is formed between the outer hose 191 and the inner hose 192.
  • Is an exhaust passage 190, and both ends of the outer hose 191 and the inner hose 192 are fixed to the connecting pipe 185 and the hand gripping pipe 186.
  • connection port 18 3 for connecting the main body connection part 1 98 at one end of the hose 18 4 is provided. Inside, a dust collecting chamber 1993 is provided between the connection port 18 3 and the electric blower 18 2.
  • the soundproof cylinder 1994 covers the electric blower 182, and a flexible exhaust pipe 1995 having a hollow cross section is connected to the outer peripheral surface of the soundproof cylinder 1994. Part of the exhaust gas discharged during operation 2 is led to connection port 18 3.
  • a check valve 196 sandwiched between the connection port 183 and the dust collection chamber 193 provides airtight communication between the connection port 183 and the inside of the dust collection chamber 193, and an exhaust pipe at the front.
  • a substantially cylindrical exhaust introduction port 197 to which 195 is connected is integrally formed.
  • the connecting pipe 185 has a main body connecting portion 198 having a substantially double-pipe cross section, and a main body connecting portion 198 on the outer peripheral side of the main body connecting portion 198.
  • a buckle 200 sandwiched between the connecting portion 198 and the lid 199, and a rotating pipe 200 having a substantially double-pipe cross-section arranged between the main body connecting portion 198 and the hose 184. And are arranged.
  • the buckle 200 is urged by a spring 202 to removably lock the connection pipe 185 to the connection port 183.
  • the rotating pipe 201 is rotatable around the longitudinal axis of the connecting pipe 185, and prevents the hose 184 from being twisted when the cleaner body 181 is used.
  • Main unit connection part 198 Inner pipe 203 and inner pipe 204 of rotating pipe 201 are airtightly communicated with inner pipe 204 by evening packing 205, and outer peripheral part of inner pipe 203 Similarly, the outer peripheral portion of the inner pipe 204 is also in airtight communication.
  • On the upper surface of the main body connection portion 198 on the outer peripheral side of the rotating pipe 201 fixed contacts 206 are arranged and fixed in the front-rear direction.
  • the fixed contact 206 is electrically connected to a connection terminal (not shown) protruding from the main body connection portion 198 to the cleaner main body 181 side.
  • This connection terminal is electrically connected to the main body connector (not shown) arranged in the cleaner main body 181, with the main body connection portion 198 connected to the connection port 183.
  • the same number of rail terminals 207 are arranged opposite to the fixed contact 206 while being held on a substantially cylindrical rail base 208.
  • the rail base 208 is fixed to the outer peripheral side of the rotating pipe 201, and when the rotating pipe 201 rotates around the longitudinal axis of the connecting pipe 185, it rotates together with the rotating pipe 201.
  • the electrical connection between the fixed contact 206 and the rail terminal 207 is always maintained.
  • the inner hose 192 forming the hose 184 is wrapped around the inner pipe 204 of the rotating pipe 201, and the outer hose 191 is wrapped around the outer peripheral surface of the rotating pipe 201.
  • Each is airtightly connected.
  • the inner pipe 204 of the rotating pipe 201 projects from the outer peripheral surface of the rotating pipe 201.
  • the other end of the hose 18 4 is connected to the hand grip pipe 18 6, and the inner hose 19 2 is connected to the inner pipe 20 9 of the hand grip pipe 18 6 (Fig. 28).
  • the outer hose 191 is wrapped around the outer pipe 210 of the hand gripping pipe 186, and the inner pipe 209 of the hand gripping pipe 186 is outer It protrudes from the pipe 210 in the axial direction.
  • the hand grip pipe 186 is formed of the inner pipe 209 wrapped with the inner hose 192 and the outer pipe 209 wrapped with the outer hose 191. It accommodates the connecting pipe 2 1 1 with a substantially double pipe structure and the front of the wrapping portion of the hose 18 4, and attaches and detaches the extension pipe 188 at the tip while bending it in a substantially V shape toward the front side A bent pipe 2 1 2 that can be freely connected, a switch board 2 14 arranged in a component storage section 2 13 above the bent section of the bent pipe 2 1 2, and an operation section that operates the switch board 2 14 2 1 5 and a grip provided behind the operation unit 2 15 and above the bent pipe 2 12 (corresponding to the grip provided on the hand grip pipe) 2 1 5a, and the extension pipe 1 slidably sandwiched between the grip pipe cover 2 16 and the grip pipe cover 2 16 covering the upper opening of the bent pipe 2 1 2 and the bent pipe 2 1 2 And buckle 2 17 for detachably locking 8 8.
  • the curved pipe 2 1 2 is divided into two upper and lower passages by an inner wall 2 18, and the intake passage 1 89 is airtightly connected to the inner pipe 2 09 of the connecting pipe 2 1 1, and the exhaust passage 1 9
  • Reference numeral 0 denotes an airtight communication with the passage between the inner pipe 209 and the outer pipe 210 of the connecting pipe 211.
  • the conductive wire 219 is connected to the rail terminal 207, between the outer hose 191 and the outer hose 191 and the inner hose 192 from the wrapped portion on the outer peripheral surface of the rotating pipe 201 Into the exhaust passageway 190, and the other end is led out of the outer hose 191, the outer tube 21 of the connecting pipe 211, and the outer hose 191, and the component housing section 21 3 and connected to the switch board 214.
  • the conductive wire 219 is spirally attached to the inner peripheral surface of the outer hose 191.
  • the conductive wire 219 is provided in the exhaust passage 190 through which the clean exhaust gas after the dust is removed flows, the dust does not collide with the conductive wire 219 and the conductive The coating process for protecting the wire 219 from dust can be simplified.
  • the exhaust gas contains carbon powder generated from the electric blower 18.
  • the extension pipe 188 holds the small-diameter pipe 2 21 slidably in the large-diameter pipe 220, which is detachably fixed to the bent pipe 211, and The distal end of the small pipe 222 is detachably engaged with the connection pipe 222 of the suction tool 187.
  • the large-diameter pipe 220 is divided into two upper and lower air passages by an inner wall 222, that is, an intake passage 189 and an exhaust passage 190.
  • the small diameter pipe 2 2 1 is an intake pipe 2 2 4, an intake pipe cover 2 2 5 fixed to the intake pipe 2 2 4 from above the intake pipe 2 2 4, an intake pipe 2 2 4 and an intake pipe cover 2 2 5 It has a pair of conductive wires 227 housed in a storage room 226 defined by the above. A connection terminal (not shown) is connected to both ends of the conductive wire 227.
  • the hand gripping pipe 1 When the extension tube 188 is connected to the hand gripping pipe 186 and the suction tool 187, the hand gripping pipe 1 It is in a state of being electrically connected to the connection terminals (not shown) provided on the suction device 86 and the suction device 187.
  • the conductive wire 227 in the large-diameter tube 220 is protected by an insulating tube 228.
  • the exhaust pipe 229 is slidably held in the exhaust passage 190 of the large-diameter pipe 220 and communicates with the exhaust passage 190.
  • the front end of the exhaust pipe 2 2 9 is a small diameter pipe 2
  • the lower cover fixed to the intake pipe 2 24 of 2 1 from below is fixed to the lower cover 1, and the exhaust pipe 1 900 and the exhaust pipe formed by the lower force bar 230 and the intake pipe 222 are fixed. It communicates with the inside of 229.
  • the suction device 187 holds, in front of the suction device 187, a rotating brush 232 with a built-in electric motor 231 in a rotatable manner.
  • the rotating brush 2 32 is driven to rotate by a built-in electric motor 2 31, and its rotation is transmitted through a speed reducer (not shown), and rotates at about 150 rotations per minute.
  • the rotating brush 2 32 faces the suction port 2 3 3 provided on the lower surface, and the blades 2 3 4 and 2 3 5 attached on the peripheral surface lift up dust adhered to the cleaning surface.
  • the dust suction port 236 is formed behind the rotating brush 232, and communicates with a connecting cylinder 237 which can be raised and lowered in the vertical direction.
  • the suction pipe 238 is rotatably connected to the connecting cylinder 237 so as to be rotatable by a predetermined angle in the left and right direction, and is divided into two upper and lower passages by a pipe wall 239.
  • the upper intake passage 189 communicates with the above-described connecting cylinder 237 at the front and with the small-diameter pipe 221 of the extension pipe 188 at the rear.
  • the lower exhaust passage 190 communicates with the exhaust passage 190 of the extension tube 188 at the rear, while the electric blower 18
  • the exhaust gas discharged during operation is communicated from the front to the exhaust port 242 which discharges it in the direction of the intake port 233.
  • the dust generated by the blades 2 3 4 and 2 3 5 is the intake air generated by the suction of the electric blower 18 2, and the suction tool 18 7, the extension pipe 18 8
  • the water is transferred into the dust collecting chamber 1993 through the hose 184 and the intake passage 189 provided in the cleaner body 181, and accumulated there.
  • the clean airflow from which the dust is separated passes through the electric blower 182, and is discharged into the soundproof cylinder 1994.
  • At least a part of the exhaust gas discharged into the soundproof cylinder 194 passes through the exhaust pipe 195, the exhaust inlet 197, the hose 184, the extension pipe 188, and the suction device 18
  • the exhaust gas passes through an exhaust passage 190 provided in 7 and is discharged from an exhaust port 242 to a suction port 233.
  • the recirculated exhaust gas reduces the degree of adhesion between the suction tool 1 8 7 and the cleaning surface, Reduce the movement operation force of 1 8 7
  • the dust on the cleaning surface is blown and transferred in the direction of the dust suction port 236, and the dust collection performance can be improved by a synergistic effect with the rotation of the rotating brush 232.
  • the hose 184 is provided with an inner hose 192 forming an intake passage 189 inside a flexible outer hose 191, and between the outer hose 191 and the inner hose 192.
  • the space formed in the exhaust pipe is 190, and both ends of the outer hose 191 and the inner hose 192 are fixed to the connecting pipe 1885 and the hand gripping pipe 1886, so the connecting pipe 1 Except for the ends fixed to 8 5 and the hand gripping pipe 18 6, the inner peripheral surface of the outer hose 19 1 and the outer peripheral surface of the inner hose 19 2 depend on the bending of the hose 18 4, etc.
  • the inner hose 192 can move freely in the outer hose 191, making it easy to bend in all directions, improving the bendability and drawability of the hose 184. And the usability can be improved.
  • the exhaust passageway 19 0 9 formed between the outer hose 19 1 and the inner hose 19 2 Have the same cross-sectional area.
  • the outer hose 191 is flexible, the ventilation resistance increases near the inner peripheral surface of the outer hose 191.
  • the circle between the outer peripheral surface of the inner hose 19 2 and the inner peripheral surface of the outer hose 19 1 forming the exhaust passage 19 Since the circumferential distance is maximized, the ventilation resistance of the exhaust passageway 190 in this case is smaller than when the outer hose 191 and the inner hose 192 are coaxial.
  • the intake passage 189 is formed by the inner hose 192.
  • the ventilation resistance of the intake passage 189 becomes larger as the perimeter becomes longer, but as described above, the inside of the inner hose 192 becomes the intake passage 189.
  • the maximum passage cross-sectional area can be obtained with the minimum circumferential length, and the ventilation resistance can be reduced.
  • the ventilation resistance of the exhaust passage 190 is reduced as described above, The intake air volume and exhaust air volume can be increased, dust collection performance can be improved, and usability can be improved.
  • the inner pipe 204 of the rotating pipe 201 enclosing the inner hose 192 is made to protrude from the outer peripheral surface of the rotating pipe 201, and the inner pipe 209 of the hand gripping pipe 186 is formed. Outside Since it protrudes from the pipe 210, the inner hose 192 is connected, and then the outer hose 191 is connected to connect the hose 184 and the connecting pipe 185 or the hand gripping pipe 1886. Can be easily connected, and the productivity of the hose 184 can be improved.
  • the intake passage 189 and the exhaust passage 190 of the hose 184 and the intake passage 189 and the exhaust passage 190 of the extension tube 188 are connected to the grip pipe 186, respectively. Since the intake passage 189 and the exhaust passage 190 are formed, the intake passage 189 and the exhaust passage 190 between the suction tool 187 and the cleaner body 181 are connected. It can be easily formed, and the intake passage 189 and the exhaust passage 190 can be simultaneously connected between the double hose and the two-layer extension tube, so that the usability can be improved.
  • extension pipe 188 has a two-layer extension pipe with the intake passage 189 formed at the top and the exhaust passage 190 formed at the bottom arranged side by side.
  • the structure of the connecting hand grip pipes 18 6 can be simplified.
  • the cross-sectional area of the intake passage 189 is larger than the cross-sectional area of the exhaust passage 190, the air intake when the exhaust passage 190 is not provided without changing the outer diameter of the outer hose 191 Compared to the cross-sectional area of the passageway 189, the degree of decrease in the cross-sectional area of the intake passageway 189 can be reduced, and the intake port 2 3 Exhaust gas can be blown toward this, improving dust collection performance.
  • the extension pipe 188 has a two-layer extension pipe in which an intake passage 189 formed at an upper portion and an exhaust passage 190 formed at a lower portion are arranged side by side.
  • the exhaust passage 190 may be inscribed inside the 189 to form a double extension tube.In this case, too, the intake passage between the suction device 187 and the cleaner body 181 may be formed.
  • the passage 189 and the exhaust passage 190 can be easily formed, and the intake passage 189 and the exhaust passage 190 can be simultaneously connected between the double hose and the double extension pipe. And improve usability.
  • the conductive wire 219 is spirally wound around the outer hose 191 to form the outer hose 191.
  • it is introduced into the exhaust passage 190 between the inner hose 19 and the inner hose 19, it may be arranged in a substantially straight line in the exhaust passage 12 and in this case, the length of the conductive wire 219 can be shortened. It can be cheap.
  • FIG. 34 Next, a seventeenth embodiment of the present invention will be described with reference to FIGS. 34 to 37.
  • FIG. 34 a seventeenth embodiment of the present invention will be described with reference to FIGS. 34 to 37.
  • the vacuum cleaner body 15 1 has a built-in electric blower 15 2 and a connection terminal connected to one end of a hose 15 4 4 at the connection port 15 3 of the vacuum cleaner body 15 1.
  • a connecting pipe 1 5 5 having 1 5 5 a is connected.
  • a suction device 1 5 7 is connected to a hand gripping pipe 1 5 6 having an operation section 1 5 6 b containing a switch board 1 5 6 a that controls the operation of the electric blower 15 2 at the other end of the hose 1 5 4 Extension tube 1 5 8 is connected.
  • the intake passage 159 is a passage through which the air sucked by the electric blower 158 from the suction device 157 through the extension tube 158 and the hose 154 is passed through the suction device 157, and the suction device 157 and the extension tube 155.
  • the exhaust passage 160 is a passage through which the exhaust air exhausted from the electric blower 152 passes from the cleaner main body 151 to the suction tool 157 through the hose 154 and the extension tube 158. It is provided in the machine body 151, hose 1554, extension pipe 158, and suction tool 157, respectively, and is connected as one exhaust passage 160.
  • the hose 154 is a flexible outer hose (preferably an outer hose having a bellows-like flexibility with emphasis on flexibility).
  • a flexible inner hose 162 forming an air intake passageway 159 is provided by separating the inner surface from the outer hose 161, and between the outer hose 161 and the inner hose 162.
  • the space to be formed is the exhaust passage 16 0, and both ends of the outer hose 16 1 and the inner hose 16 2 are connected to the outer pipe 16 3 and the inner pipe 16 4 provided in the connecting pipe 15 5, and are gripped by hand. It is connected and fixed to the outer pipe 163 a and the inner pipe 164 b provided on the pipe 156.
  • the outer hose 16 1 and the inner hose 16 2 have a reinforcing wire 1 65 wound spirally at a predetermined pitch, and the outer circumference of the inner hose 16 2 has multiple reinforcing wires near the reinforcing wire 16 5.
  • the number of conductive wires 166 is spirally arranged with a pitch larger than the pitch of the reinforcing wires 165 of the outer hose 161.
  • the end of the conductive wire 166 is led out from the connection of the outer hose 161 and is connected to the switch board 156 a provided on the hand gripping pipe 156. Electrically connected to the connection terminal 1 5 5 a provided on the connection pipe 1 5 5
  • the winding diameter is smaller than arranging the conductive wire 166 on the outer hose 16 1. 6 can be reduced, and the pitch of the conductive wires 166 is made larger than the reinforcing wire pitch of the outer hose 161 to further reduce the usage of the conductive wires 166.
  • the hoses 154 can be made lighter, and the operability can be improved.
  • the outer hose 16 1 is provided with a reinforcing wire 16 5 on the inner periphery of the hose tape 16 7 to prevent deformation and collapse of the hose 15 4 Is secured.
  • the inner hose 16 2 has a plurality of conductive wires 166 provided with a plurality of insulating coatings 168 on the inner periphery of a hose tape 167 a in a spiral shape at predetermined intervals. The operation of the above configuration will be described. The weight can be reduced by providing the conductive wire 166 with an insulating coating 168 and arranging it as a reinforcing wire.
  • the reinforcing wire 16 5 and the conductive wire 16 6 are arranged on the inner circumference of the hose tapes 16 7 and 16 7 a. Needless to say, the same effect can be obtained by arranging them on the outer periphery of.
  • FIG. 40 and 41 The same components as those in the eighteenth embodiment are denoted by the same reference numerals, and description thereof will be omitted.
  • the inner hose 16 2 is made of nylon, cotton, or other material along the length of the outer hose of the hose tape 1 67a. And a plurality of hardened steel wires 170 coated with a plurality of insulating coatings 168 are fixed at predetermined intervals by spiral bonding or welding. You.
  • the reinforcing wire pitch can be increased, and the usage of the hard steel wire 170 can be reduced.
  • the reinforcing thread 16 9 can prevent the hose 15 5 from being stretched or cut by the tension applied to the hose 15 5 due to the drawing of the cleaner body 15 1 during cleaning, the hose tape 16 7, 167a can be made thinner, and the weight can be reduced.
  • the reinforcing yarn 169 in the outer surface of the inner hose 162, that is, in the exhaust passage 160, there is no fear of dust being caught. Needless to say, the same effect can be obtained even if the inner hose 162 and the outer hose 161 are used as the reinforcing yarn 169 installation portion.
  • the hose 154 consists of a bellows-like flexible outer hose 161 and an inner hose 162, and the inside of the inner hose 162 is formed.
  • the intake passage is 159
  • the exhaust passage is between the outer hose 161 and the inner hose 162, and the both ends of the outer hose 161 and the inner hose 16 are connected to the connecting pipe 15
  • the outer pipe 16 3a and the inner pipe 16 4a and the inner pipe 16 4b provided on the hand gripping pipe 15 56 are connected and fixed.
  • a hard steel wire 170 with a plurality of insulation coatings 16 8 is spirally arranged on the inner periphery of the outer hose 1 6 1 hose tape 1 6 7, and the end of the hard steel wire 1 7 7 is an outer hose It is derived from the connection part of 1 6 1 and is electrically connected to the switch board 1 5 6 a provided on the hand gripping pipe 1 5 6 and the connection terminal 1 5 5 a provided on the connection pipe 1 5 5.
  • 56 a is electrically connected to the electric blower 15 2.
  • the inner / outer diameter difference (t 1) of the inner hose 16 2 is set smaller than the inner / outer diameter difference (t 2) of the outer hose 16 1.
  • the strength of the hose 154 can be ensured by the conductive wire provided to the outer hose 161, that is, the hard steel wire 170, and after the inner hose 162 and the outer hose 161 are connected, Easy electrical connection with the hand gripping pipe 156 and the connecting pipe 155, without taking into account the routing of the conductive wire provided on the hose 161 and the air tightness of the conductive wire routing section be able to.
  • the intake area and the exhaust area can be made the same, the outer diameter of the outer hose 16 1 can be reduced, and the weight of the hose 1 54 can be reduced. Can be.
  • the exhaust area and the intake area can be increased, the pressure loss of the intake and exhaust can be reduced, and clogging of the hose 154 can be prevented. The effect is obtained.
  • the configuration of the intake and exhaust passages using the hose of the vacuum cleaner is described as an example.
  • the hose of the present invention is used not only for gas but also for fluid such as air and steam or water. be able to.
  • FIG. 44 to 49 a twenty-first embodiment of the present invention will be described with reference to FIGS. 44 to 49.
  • the main body of the vacuum cleaner 1 7 1 is connected to the connection port 1 7 2 with the connection pipe 1 7 4 of the hose 1 7 3, and the grip 1 pipe at the other end of the hose 1 7 3
  • An extension pipe 1 7 7 connected to a suction tool 1 7 6 is connected to 7 5.
  • An electric blower 178 is built in the rear side of the main body of the vacuum cleaner 171, and a dust collecting chamber 179 is provided between the connection port 172 and the electric blower 178.
  • the soundproof cylinder 180 covers the electric blower 178, and one end of the exhaust pipe 181 is connected to the outer peripheral surface of the soundproof cylinder 180.
  • the exhaust pipe 181, as shown in FIG. 45, has a bellows-like portion in a part, and has flexibility as a whole.
  • the other end of the exhaust pipe 18 1 is connected to the connection port 17 2, and a part of the exhaust gas discharged by the operation of the electric blower 17 8 is connected.
  • a check valve 18 2 is sandwiched between the connection port 17 2 and the dust collection chamber 17 9
  • connection port 17 2 communicates air-tightly between the connection port 17 2 and the inside of the dust collection chamber 1 79, and on the front side, as shown in Fig. 46, a substantially cylindrical exhaust with an exhaust pipe 18 1 connected.
  • Inlet 1 8 3 formed in the body.
  • the connecting pipe 1 7 4 has a two-layer pipe structure forming an intake passage on the inner periphery and an exhaust passage on the outer periphery, and a lid 18 5 covering the outer peripheral side of the connecting pipe 18 4. And a buckle 186 sandwiched between the connecting pipe 184 and the lid 1885, and a rotating pipe 187 having one end rotatably connected to the connecting pipe 184.
  • the rotating pipe 1 87 has an intake passage on the inner circumference and a It has a two-layer pipe structure with an exhaust passage, and a rotating pipe 1 8 7 and a connecting pipe 1
  • the intake passages and the exhaust passages with the intake passages 8 are rotatably connected to each other.
  • the buckle 186 is urged by a spring 188 to lock the connection pipe 174 in the connection port 172 independently.
  • the rotating pipe 187 is rotatable about the longitudinal axis of the connecting pipe 174 to prevent the hose 173 from being twisted during use.
  • the inside of the inner pipe 1 89 of the connecting pipe 1 84 and the inner pipe 1 90 of the rotating pipe 1 87 are air-tightly communicated by tight packing 19 1 and the inner pipe 1 89 and the outer circumference.
  • the outer periphery of the pipe 190 is also in airtight communication.
  • fixed contacts 192 are arranged and fixed in the front-rear direction.
  • the fixed contacts 192 are electrically connected to a plurality of connection terminals (not shown) sandwiched between the rotating pipe 187 and the lid 185.
  • the connection terminal is electrically connected to a main body terminal (not shown) arranged on the cleaner main body 171, with the connection pipe 184 connected to the connection port 172.
  • Fixed contact 1
  • the same number of rail terminals 193 are arranged opposite to the fixed contacts 192 while being held by a substantially cylindrical rail base 194.
  • This rail base 194 is fixed to the outer peripheral side of the rotary pipe 187, and when the rotary pipe 187 rotates around the longitudinal axis of the connecting pipe 174, it rotates together with the rotary pipe 187.
  • the electrical connection between the fixed contact point 192 and the rail terminal 193 is always maintained.
  • Hose 173 is a double hose structure containing an inner hose 196 whose outer diameter is smaller than the inner diameter of the outer hose 195.
  • One end of the inner hose 196 is connected to the inner pipe of a rotating pipe 187. Wrap the one end of the outer hose 195 on the outer peripheral surface of the rotating pipe 187 on the anti-connection pipe 184 side and airtight each Connected.
  • the inner hose 196 is formed of a flexible material such as vinyl chloride
  • the outer hose 195 is formed by adding a metal fiber such as aluminum to a flexible material such as vinyl chloride. It is formed with a higher thermal conductivity than that.
  • the color of the outer hose 195 is also black with good heat radiation.
  • the hand gripping pipe 175 is made up of an inner tube 197A that wraps the other end of the inner hose 196 and an outer tube that wraps the other end of the outer hose 195.
  • the connecting pipe 197 having a double pipe structure consisting of the pipe 197 B and the hose 173 at the other end side of the wrapping portion are housed, and are bent in a substantially C-shape toward the front side.
  • extension tube at the tip 1 7 7 is composed of a bent pipe 198 that is detachably connected.
  • a component accommodating portion 199 is formed above the bent portion of the bent pipe 198, and a switch substrate 200 having a plurality of switches 200a is built therein.
  • the operation unit 201 operates the switch 200a, and is provided on a grip tube cover 202 that covers the upper opening of the curved pipe 198.
  • the buckle 203 is slidably clamped by the grip tube cover 202 and the bent pipe 198 to lock the extension pipe 177 to the bent pipe 198 so as to be detachably attached thereto.
  • the bent pipe 198 is divided into two upper and lower passages by the inner wall 204, and the intake passage
  • the exhaust passage 206 is between the inner pipe 197 A of the connecting pipe 197 and the outer pipe 197 B It is airtightly connected to the passage.
  • the conductor 207 is connected between the outer hose 195 and the inner hose 196 from between the outer hose 195 and the wrapped portion on the outer peripheral surface of the rotating pipe 187.
  • the other end is led out of the outer hose 195, the outer pipe 197B of the connecting pipe 197 and the wrapping part of the outer hose 195, and passes through the component housing 199. Connected to the switch substrate 200.
  • the extension pipe 177 is slidably inserted into the first ventilation pipe 208 which is detachably locked to the bent pipe 198 of the hand gripping pipe 175.
  • the second ventilation pipe 209 is held, and the end of the second ventilation pipe 209 is detachably engaged with the connection pipe 210 of the suction tool 176.
  • the first ventilation pipe 208 is divided into upper and lower two-layer ventilation paths, that is, an intake path 2 12 and an exhaust path 2 13 by the inner wall 2 1 1.
  • the second ventilation pipe 209 is separated into a ventilation pipe 2 14 and a ventilation pipe 2 15, and the ventilation pipe 2 1 4 constitutes an exhaust passage 2 16, and the ventilation pipe 2 15 constitutes an intake passage 2 17.
  • the ventilation pipes 2 14 and 2 15 are arranged with a gap in the axial direction, and one end of the ventilation pipe 2 14 is axially located in the exhaust passage 2 13 of the first ventilation pipe 208. It is slidably inserted in the direction, and is connected to the exhaust passage 2 13.
  • the electric conductor 218 includes a storage chamber 220 formed by a ventilation pipe 215 and an elongated pipe cover 219 fixed to the ventilation pipe 215 from above, and a first ventilation pipe 209.
  • a connection terminal (not shown) is connected to both ends of the conductor 218, and one end of the extension tube 177 is connected to a hand gripping pipe 175 and the other end is connected to a suction tool 176. At this time, it is in a state of being electrically connected to the connection terminals (not shown) provided on the hand gripping pipe 1 75 and the suction tool 1 76.
  • the surface of the conductor 218 is protected by an insulating coating 221.
  • the push button 2 2 2 has a locking projection 2 2 3 that moves up and down in conjunction with the up and down operation, and the locking projection 2 2 3 is located in a gap between the ventilation pipe 2 14 and the ventilation pipe 2 15.
  • the lower surface of the ventilation tube 215, that is, the surface facing the ventilation tube 214, is configured to elastically engage with a plurality of locking recesses 224 formed at predetermined intervals in the axial direction. is there.
  • the protrusion of the second ventilation pipe 209 with respect to the first ventilation pipe 208 can be adjusted to a convenient length for the user by using the locking projection 2 2 3 and the locking recess 2 2 4. .
  • connection between the extension pipe 1 7 7 and the hand gripping pipe 1 5 and the connection 5 1 between the suction tool 1 7 6 and the extension pipe 1 7 7 are formed in the same shape.
  • the suction pipe 1 176 can be directly connected to the grip pipe 175 for use.
  • the suction tool 1776 rotatably holds a rotating brush 2226 having a built-in electric motor 25 in front.
  • the rotating brush 226 is rotationally driven by a built-in motor 225, is transmitted through a speed reducer (not shown), and rotates at about 150 revolutions per minute.
  • the rotating brush 226 faces the suction opening 227 provided on the lower surface, and a plurality of blades 228 and brushes 229 mounted on the peripheral surface lift up dust and the like adhered to the surface to be cleaned.
  • the dust suction port 230 is formed at the rear of the rotary brush 226, and communicates with the connecting cylinder 231 which can be vertically raised and lowered.
  • the suction pipe 2 3 2 is connected to the connecting pipe 2 3 1 so as to be rotatable by a predetermined angle in the left-right direction, and is divided into two upper and lower passages by a pipe wall 2 3 3.
  • the upper intake passage 2 3 4 communicates the front with the above-mentioned connecting cylinder 2 3 1 and the rear with the intake passage 2 17 of the extension pipe 1 77.
  • the lower exhaust passage 235 connects the exhaust passage 216 of the extension pipe 177 at the rear, while the flexible pipe 236 at the front and the bypass formed from the top to the front of the suction tool 176 at the front. (Exhaust passage) It communicates with 237, and the end of the bypass 237 communicates with the exhaust port 238.
  • each of the exhaust passages is formed to be about 70% of the cross-sectional area of the intake passage of the suction device 176, the extension pipe 177, and the hose 173.
  • the raised dust is the intake air flow generated by the suction of the electric blowers 1 to 8, and the intake passage 2 2 7, the dust intake port 2 3 0, the connecting cylinder 2 3 1, and the suction passage of the suction pipe 2 3 2 2 3 4, Inlet passage 2 17 for second vent pipe 209, Inlet passage 2 1 for first vent pipe 208, Inlet passage for bent pipe 198, Inner hose 19, Inner hose 19 6. It is transferred to the dust collecting chamber 179 via the inner pipe 190 of the rotating pipe 187 and the inner pipe 189 of the connecting pipe 184, and accumulated there. The clean airflow separated from the dust passes through the electric blower 178 and is discharged into the soundproof cylinder 180.
  • This exhaust is introduced between the inner pipe 18 9 of the connecting pipe 18 4 and the outer circumference of the connecting pipe 18 4 via the exhaust pipe 18 1, the exhaust inlet 18 3, and the through hole 23 36.
  • the connecting pipe 197 the inner pipe 197A and the outer pipe 1
  • the bent pipe 1 98 and the exhaust passage 2 13 of the first ventilation pipe 2 08, the exhaust passage 2 3 5 of the suction device 1 76, the flexible pipe 2 3 6, the bypass 2 3 7 The air is discharged from the exhaust port 238 through the suction port 227 through the exhaust port 228.
  • the recirculated exhaust gas reduces the degree of contact between the suction tool 1 76 and the surface to be cleaned, thereby reducing the moving operation force of the suction tool 1 76 and, at the same time, sucking dust and dust on the surface to be cleaned 2 3 0
  • the dust is transferred by spraying in the direction, and the dust collection performance is improved by a synergistic effect with the rotation of the rotating brush 226.
  • the hose 17 3 is the hotest exhaust heat affected by the Joule heat generated by the electric blower 1 78 because it is the nearest exhaust passage discharged from the cleaner body 17 1
  • the outer hose 1 9 5 is the inner hose 1 9 6 has a higher thermal conductivity than that of 6, so that the exhaust heat is efficiently radiated into the atmosphere over the entire length of the outer hose 195, and the inner hose 196 and the outer hose 195 itself It is possible to provide a hose 173 that can prevent long-term use by preventing thermal deterioration of the hose. Further, since the color of the outer hose 195 is black with good heat radiation, the radiation of exhaust heat to the atmosphere can be further improved.
  • the volume of a gas increases by about 1 Z 273 with a rise in temperature per degree. Therefore, the distribution of the exhaust temperature is highest in the connection pipe 174 of the hose 173, and almost drops to the ambient temperature in the suction tool 176. Under such a temperature gradient, the amount of exhaust air flowing into the exhaust passage of the hose 17 7 is reduced by the suction tool 1 76, and the contribution to the improvement of the dust absorption performance by circulation is reduced. Since the heat is dissipated to the atmosphere by the hose 173, the effect of suppressing the above-mentioned decrease in the air volume can also be obtained.
  • a metal fiber such as aluminum is added to a flexible material such as vinyl chloride.
  • a flexible material such as vinyl chloride.
  • another material may be used. It is needless to say that the same effect can be obtained even if it is formed of a material.
  • the color of the outer hose 195 is set to black to improve heat release.However, it is needless to say that the heat release effect is sufficiently obtained even if the outer hose 195 is not formed with a color having good heat radiation. Absent.
  • the outer hose 195a is made by winding a fiber sheet made of synthetic resin fiber such as polyester or nylon in a spiral shape in the longitudinal direction, and fixing them together at the overlapped portions to form a hose. It contains 196.
  • the outer hose 195a is formed thicker on the connecting pipe 174 side and thinner on the hand grip pipe 175 side.
  • the effect of dissipating the heat of the exhaust gas can be significantly improved as compared with the above-described twenty-first embodiment.
  • the amount of intake air from the suction tool 176 can be increased in proportion to the amount of part of exhaust gas discharged into the air, and 100% of air is circulated as in the above-described 21st embodiment.
  • the suction air volume from the suction tool 176 is increased, and the dust suction performance can be improved.
  • the outer hose 195a is configured to include the inner hose 196, the outer hose 195a has a large surface area, and exhaust gas can be discharged to the atmosphere from a large surface area. Further, exhaust heat can be efficiently dissipated.
  • the outer hose 195a by forming the outer hose 195a with a fiber sheet, the air permeability can be easily adjusted, and the amount of exhaust air discharged from the surface of the outer hose 195a can be easily adjusted. it can. Further, since the outer tube side of the double tube structure is made of a fiber sheet, it has high flexibility. As a result, the usability of the hose 173 as a whole becomes very good.
  • the pressure distribution of the exhaust gas discharged from the electric blower 178 is the largest in the soundproof cylinder 180, and almost equal to the atmospheric pressure in the exhaust port 238 of the suction device 176.
  • the most exhaust gas is discharged from the connecting pipe 174 of the outer hose 195a.
  • the outer hose 195a which constitutes the exhaust passage of the hose 173, is thicker on the connecting pipe 174 side and thinner on the hand gripping pipe 175 side, so that ventilation pressure loss is also connected.
  • the distribution is high on the pipe 174 side and low on the hand grip pipe 175 side, and the exhaust discharged from the outer hose 195a can be made uniform over the entire length of the outer hose 195a.
  • FIG. 51 Next, a 23rd embodiment of the present invention will be described with reference to FIGS. 51 and 52.
  • FIG. 51 a 23rd embodiment of the present invention will be described with reference to FIGS. 51 and 52.
  • FIG. 51 shows an electric blower used in the vacuum cleaner of the present invention.
  • the anti-load side bracket 2 41 is formed in a substantially cylindrical shape with one end opened and the other end closed. 4 1 stores the stay 2 4 2 and the rotor 2 4 3 respectively.
  • the load-side bracket 244 is disposed on the opening end surface of the anti-load-side bracket 241 so as to close the opening.
  • a plurality of exhaust ports 245 are provided on the side surface of the non-load side bracket 241, a plurality of cooling ports 246 are provided on the bottom surface, and the rotation shaft 244 of the rotor 243 on the outside thereof.
  • a cooling fan 248 that cools the rotor 24 3 and the stay 24 2 in the bracket, and a fan cover 24 9 is attached from above, forming a motor 250 .
  • An impeller 251, which generates a suction force, is attached to the other end of the rotating shaft 2447 of the rotor 2443.
  • the impeller 251, which includes this impeller, has an intake port 25 A casing 25 4 having an exhaust port 25 3 for discharging the airflow generated by the impeller 25 1 on the outer circumference circle is press-fitted into the load side bracket 24 4 to constitute the electric blower 255. ing.
  • the load-side bracket 244 of the present embodiment is disposed on the outer periphery of the impeller 251 and also serves as an air guide for adjusting the airflow.
  • the cooling air flows from the inlet (not shown) of the cleaner body 256 through the suction port 249 a of the fan cover 249 by the cooling fan 248, and the cooling air inside the bracket 246. 3 and stay cool 2 4 2
  • Fig. 52 shows a vacuum cleaner body 256 incorporating the electric blower 255, and the hose, the extension pipe, and the suction tool are omitted.
  • the vacuum cleaner main body 256 is roughly divided into a dust collecting chamber 255, an electric blower room 255, and an exhaust passage 255.
  • a dust collection bag 260 is attached to the dust collection chamber 257, and only the electric motor 250 part of the electric blower 255 shown in Fig. 51 is stored in the electric blower room 258.
  • the portion of the casing 254 belongs to the inside of the exhaust passage 259.
  • the electric blower 255 is provided with a space 261 below the outer periphery of the vacuum cleaner body 256 to support it. I have.
  • the exhaust passageway 259 communicates with the electric blower room 258 at the communication port 262 above the electric blower 255, and passes right next to the dust collection room 257, Body 2 5 6 Guided forward, leading to the exhaust passage of the hose.
  • the motor 250 does not break down or receive an electric shock.
  • the warm air that has cooled the motor 250 flows from the communication port 262 to the exhaust passage 259, and mixes with the exhaust air discharged from the exhaust port 253 of the casing 254 to clean the motor.
  • Machine body 2 5 6 Heading forward. At this time, the moisture flowing out of the exhaust port 25 3 of the casing 25 4 is dried, and the moisture inside the dust collection chamber 25 7 provided at a position adjacent to the exhaust passage 25 9 is dried. While being sent to the hose exhaust passage.
  • the electric circulation fan 255 provided with the cooling fan 248 for separately cooling the electric motor 250 is mounted on the exhaust-circulation type vacuum cleaner, and the water falls below the electric blower.
  • a space 261 is provided, and the exhaust of the motor 250 is exhausted from above and connected to the exhaust passageway 259, so that the safety of the motor 250 is guaranteed, and the dust and water etc.
  • the exhaust water is circulated to the tip of the suction tool while sucking in moisture and drying. For this reason, the exhaust gas exhausted from the tip of the suction device does not contain moisture, and the exhaust air circulating on the floor is blown to lift the dust, and the dust is sucked by the suction force, and the electricity is highly collected.
  • a vacuum cleaner can be provided. Industrial applicability
  • the surface to be cleaned, particularly on a carpet is reduced due to a decrease in the degree of negative pressure in the suction port caused by recirculating exhaust air from the electric blower to the suction tool. It is possible to prevent the rotating brush from rising from the floor, and to prevent a reduction in dust collection performance on the carpet.
  • a third object is to provide a telescopic pipe for a vacuum cleaner that has good usability.
  • the suction device for a vacuum cleaner of the present invention it is possible to easily suck relatively large dust, heavy dust, and the like that have risen from the floor surface by the rotation of the rotary brush.
  • the user can adjust the first and second ventilation pipes by sliding them in the axial direction so that the length is easy to clean.
  • the first and second ventilation pipes are slid in the axial direction to shrink the telescopic pipe and can be stored in the compact, thus improving the usability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Cleaning In General (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

Cette invention a trait à un aspirateur qui refoule l'air s'échappant d'une soufflante commandée électriquement vers une unité aspirante et ce, afin d'utiliser cet air pour enlever la poussière d'une surface à nettoyer. Cet aspirateur, qui est pourvu d'un conduit d'aspiration (40) s'étendant, aux fins d'une communication d'air, d'un orifice d'aspiration (24) ménagé dans une unité d'aspirante (21) jusqu'à une enceinte de collecte de la poussière (31), est également pourvu d'un conduit d'évacuation (41) par le biais duquel une partie au moins de l'air dégagé lors du fonctionnement d'une soufflante commandée électriquement (32) est refoulé vers l'unité aspirante (21). Cette unité aspirante (21) est pourvue d'une brosse tournante (26) mise en rotation par un moteur électrique (29), ce moteur logeant dans cette unité. Cet agencement évite un affaiblissement du potentiel de collecte de la poussière, notamment dans le cas de l'aspiration d'un tapis, dû à la diminution de la pression négative dans l'orifice d'aspiration (24) survenant lorsque l'air provenant de la soufflante commandée électriquement (32) est refoulé vers l'unité aspirante (21).
PCT/JP2000/007539 1999-10-28 2000-10-27 Aspirateur WO2001030228A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU79598/00A AU7959800A (en) 1999-10-28 2000-10-27 Vacuum cleaner

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP30667899A JP2001120478A (ja) 1999-10-28 1999-10-28 電気掃除機
JP11/306692 1999-10-28
JP30669299A JP3275897B2 (ja) 1999-10-28 1999-10-28 電気掃除機用伸縮パイプおよび電気掃除機
JP11/306678 1999-10-28
JP30930899A JP3303861B2 (ja) 1999-10-29 1999-10-29 電気掃除機並びに電気掃除機用吸込具
JP11/309308 1999-10-29
JP2000-4288 2000-01-13
JP2000004288A JP3275900B2 (ja) 2000-01-13 2000-01-13 電気掃除機
JP2000-18447 2000-01-27
JP2000018447A JP3915361B2 (ja) 2000-01-27 2000-01-27 電気掃除機
JP2000-93168 2000-03-30
JP2000093168A JP2001275898A (ja) 2000-03-30 2000-03-30 電気掃除機

Publications (1)

Publication Number Publication Date
WO2001030228A1 true WO2001030228A1 (fr) 2001-05-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/007539 WO2001030228A1 (fr) 1999-10-28 2000-10-27 Aspirateur

Country Status (3)

Country Link
CN (1) CN1240335C (fr)
AU (1) AU7959800A (fr)
WO (1) WO2001030228A1 (fr)

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* Cited by examiner, † Cited by third party
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WO2003101273A1 (fr) * 2002-05-30 2003-12-11 EURO STAR S.r.l Tuyau flexible pour machines de nettoyage de murs, sols, moquettes, tapis et analogues
US7437798B2 (en) 2003-08-21 2008-10-21 Zhouxin Zhang Air reflux assembly of the vacuum cleaner
WO2015186007A1 (fr) 2014-06-03 2015-12-10 Spival S.P.A. Dispositif d'extension télescopique à double conduit pour aspirateurs
WO2016051225A1 (fr) * 2014-10-03 2016-04-07 Umm Al-Qura University Tête d'aspirateur comprenant des ventilateurs d'insufflation et de traction
CN107518825A (zh) * 2017-10-16 2017-12-29 江苏美的清洁电器股份有限公司 吸尘器的地刷和具有其的吸尘器
WO2022023238A1 (fr) * 2020-07-29 2022-02-03 Robert Bosch Gmbh Appareil d'aspiration
CN116618404A (zh) * 2023-06-21 2023-08-22 北京牧之科技有限公司 一种吸尘头部缩放式超负压吸尘除灰装置

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WO2015109498A1 (fr) * 2014-01-23 2015-07-30 苏州市伟克斯电器有限公司 Élément adaptateur de tuyau et buse d'aspirateur
CN105212835B (zh) * 2015-10-22 2017-12-22 万亩林 一种吸尘器吹吸头
CN105942927A (zh) * 2016-07-18 2016-09-21 卓力电器集团有限公司 吸尘器刷头及包括其的吸尘器
JP6886787B2 (ja) * 2016-08-03 2021-06-16 東芝ライフスタイル株式会社 電気機器および電気掃除機
CN107816000B (zh) * 2016-09-13 2023-10-10 苏州宝时得电动工具有限公司 吹吸机
CN108722936A (zh) * 2017-04-18 2018-11-02 国网江苏省电力公司常州供电公司 一种带电吸扫装置
CN107440619A (zh) * 2017-08-31 2017-12-08 宁波富佳实业有限公司 一种扫地机器人
CN107468153B (zh) * 2017-09-04 2020-03-31 苏州海歌电器科技有限公司 转向省力的吸尘器吸头
CN110131489B (zh) * 2018-02-09 2023-09-12 科力科华（武汉）科技有限公司 一种密封组装的循环抽吸设备
CN110131490B (zh) * 2018-02-09 2023-09-12 科力科华（武汉）科技有限公司 一种可快速组装的循环抽吸设备
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CN111035318B (zh) * 2018-10-12 2021-10-26 广东美的白色家电技术创新中心有限公司 扫地机器人
CN109778748A (zh) * 2019-03-13 2019-05-21 福建腾马科技有限公司 一种设有回流通道的清扫机构
IT202000001555A1 (it) * 2020-01-28 2021-07-28 New Ermes Europe Srl Dispositivo adattatore per aspirapolvere elettrico senza filo
JP2021187650A (ja) * 2020-06-03 2021-12-13 株式会社日立製作所 乗客コンベア及び乗客コンベアのリニューアル方法
CN112391984A (zh) * 2020-11-09 2021-02-23 贵港赛唯莱特科技有限责任公司 一种市政环保道路清扫车

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JPH11178761A (ja) * 1997-12-24 1999-07-06 Toshiba Tec Corp 電気掃除機
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JPH11225917A (ja) * 1998-02-12 1999-08-24 Toshiba Tec Corp 電気掃除機

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003101273A1 (fr) * 2002-05-30 2003-12-11 EURO STAR S.r.l Tuyau flexible pour machines de nettoyage de murs, sols, moquettes, tapis et analogues
CN100341458C (zh) * 2002-05-30 2007-10-10 欧洲之星有限公司 用于墙壁、地板、绒织物、地毯等的清洁器的管
US7437798B2 (en) 2003-08-21 2008-10-21 Zhouxin Zhang Air reflux assembly of the vacuum cleaner
WO2015186007A1 (fr) 2014-06-03 2015-12-10 Spival S.P.A. Dispositif d'extension télescopique à double conduit pour aspirateurs
WO2016051225A1 (fr) * 2014-10-03 2016-04-07 Umm Al-Qura University Tête d'aspirateur comprenant des ventilateurs d'insufflation et de traction
CN107518825A (zh) * 2017-10-16 2017-12-29 江苏美的清洁电器股份有限公司 吸尘器的地刷和具有其的吸尘器
WO2022023238A1 (fr) * 2020-07-29 2022-02-03 Robert Bosch Gmbh Appareil d'aspiration
CN116618404A (zh) * 2023-06-21 2023-08-22 北京牧之科技有限公司 一种吸尘头部缩放式超负压吸尘除灰装置
CN116618404B (zh) * 2023-06-21 2024-04-19 北京牧之科技有限公司 一种吸尘头部缩放式超负压吸尘除灰装置

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CN1402620A (zh) 2003-03-12
AU7959800A (en) 2001-05-08

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