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WO1993007797A1 - Ensemble tuyau flexible - Google Patents

Ensemble tuyau flexible Download PDF

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Publication number
WO1993007797A1
WO1993007797A1 PCT/GB1992/001953 GB9201953W WO9307797A1 WO 1993007797 A1 WO1993007797 A1 WO 1993007797A1 GB 9201953 W GB9201953 W GB 9201953W WO 9307797 A1 WO9307797 A1 WO 9307797A1
Authority
WO
WIPO (PCT)
Prior art keywords
conduit
handle
working end
attached
flexible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB1992/001953
Other languages
English (en)
Inventor
Christopher Robert Duncan
Michael Edward Gailes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Numatic International Ltd
Original Assignee
Numatic International 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
Application filed by Numatic International Ltd filed Critical Numatic International Ltd
Publication of WO1993007797A1 publication Critical patent/WO1993007797A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A47L9/32—Handles
    • A47L9/327—Handles for suction cleaners with hose between nozzle and casing
    • 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
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the present invention relates to a hose assembly.
  • the present invention relates to a hose assembly for a vacuum cleaner.
  • a typical domestic or industrial vacuum cleaner which is known in the prior art comprises a body portion which houses an electric motor and a dust container, a flexible hose, a tubular wand assembly and a nozzle.
  • One end of the hose is connected to the body portion at an inlet; the other end of the hose is connected to a first end of the tubular wand.
  • the other end of the tubular wand is connected to the nozzle, and the arrangement is such that the hose, nozzle, and wand define a continuous conduit. Operation of the motor causes air to enter into the conduit at the nozzle and to pass along the conduit towards the motor.
  • the tubular wand is held by an operator towards its end - 2 - remote from the nozzle and is used to direct the nozzle over a surface to be cleaned. Dirt and detritus at the surface is entrained in the flow of air into the nozzle and is collected in the dust container in the body 5 portion of the vacuum cleaner.
  • the tubular wand assembly comprises a plurality of tube portions which can be fitted together to for the wand.
  • Each portion is made of metal, usually a light-weight
  • the arrangement described above is generally satisfactory for domestic vacuum cleaners.
  • Industrial 0 vacuum cleaners are typically designed and constructed to cope with larger quantities of dust and other detritus; the hose and tubular wand of an industrial vacuum cleaner typically have dimensions several times larger than the corresponding dimensions of domestic vacuum cleaners.
  • the diameter of the tubular wand of an industrial vacuum cleaner should be about 2 to 3 times larger than the diameter of a domestic vacuum cleaner tubular wand.
  • the wand of a vacuum cleaner is typically made of metal to provide the required stiffness. In the case of an industrial vacuum cleaner, there is a particular requirement for all the components of the cleaner to be built to a strong and robust specification.
  • a hose assembly for a vacuum cleaner which apparatus comprises: a flexible conduit, and a substantially rigid elongate handle member attached to said conduit at or towards the working end thereof, wherein said conduit is adapted for connection at its other end to vacuum cleaning machine for the provision of an air flow therethrough whereby in use said handle can be used to direct the working end of the conduit over a surface to be cleaned.
  • vacuum cleaning apparatus which comprises a hollow container, motor means for creating an air flow through at least part of said container, a flexible conduit, one end of which communicates with said container and the other end of which is adapted for collection of dirt, detritus and the like, characterised by the provision of handle means exteriorly of the said other end to permit guidance by an operator of said other end over a surface to be cleaned.
  • the conduit may be made from any suitable flexible, light-weight material.
  • the conduit may be manufactured from a synthetic plastics material.
  • the conduit may be formed from a woven material of natural or synthetic fibres which is impregnated with a synthetic plastic material to produce an air-tight conduit.
  • the conduit may be corrugated to provide it with a degree of strength.
  • the corrugations should be circumferential or helical to the conduit to allow the conduit to flex.
  • Said other or working end of the conduit may be adapted to carry or connect with a work piece such as a shaped nozzle or brush.
  • Said end may comprise a connector portion which may further include a cylindrical wall having a first end which is widened to receive the one end of the flexible conduit, and a second end which is shaped to allow it to mate with a corresponding connector portion on the nozzle.
  • said one end of the flexible conduit which is remote from the working end, is attached to an inlet on the vacuum cleaner body.
  • the working end may be used in conjunction with a nozzle as described above or without a nozzle attached.
  • Suitable nozzles are well known in the art and include nozzles which have a relatively large, flat underside suitable for sweeping floors, carpets, etc.; nozzles which beat the surface as they sweep and nozzles which are shaped to facilitate vacuum-cleaning in areas of restricted access such as adjacent skirting boards, between furniture or household articles and between the cushions of armchairs and settees.
  • the handle means may be elongate and is preferably long enough to allow an operator to use the handle to direct the working end of the conduit over or juxtaposed a surface to be cleaned without having to bend, stoop or stretch.
  • the handle may be attached at the working end of the conduit.
  • the handle may be attached to the connector.
  • the handle may, alternatively, be attached to the nozzle.
  • the elongate handle may be formed as a single piece. Alternatively, the handle may be assembled from a plurality of handle portions. In a preferred embodiment of the present invention, the handle is long enough to permit an operator to hold said handle at an end remote from the working end of the conduit and to move and direct said working end over a surface whilst standing substantially erect.
  • the handle can be made of any suitable material which provides it with sufficient strength and rigidity to allow the operator to have sufficient control over the working end of the conduit without stooping.
  • the handle may be solid or hollow and may be formed of any suitable rigid material either metal or plastics material.
  • the handle is formed from a single hollow steel tube.
  • the handle may be ergonomically shaped to provide convenient and comfortable operation thereat.
  • the handle may be a substantially straight length of steel tube which is attached at a first end thereof to said working end of the conduit.
  • the handle may be bent away from its longitudinal axis at a second end remote from the first end thereby to provide a portion where the operator may conveniently hold the handle.
  • the assembly may also include attachment means for maintaining the handle in juxtaposition with the flexible conduit.
  • the attachment means may include one or more brackets or fittings which are attached to the handle remote from said first end.
  • Each bracket or fitting may include a ring portion having a cylindrical external surface. The internal diameter of the ring portion may be larger than the external diameter of the flexible conduit such that the conduit can be passed through the ring portion, the arrangement being such that the conduit, towards the one end is held juxtaposed the elongate handle.
  • the assembly includes a plurality of such fittings which are spaced apart along the length of the elongate handle.
  • FIG. 1 is a perspective view from one side of a hose • assembly of the present invention.
  • Figure 2 is an end view, partly in cross-section, of a conduit bracket of the assembly of Figure 1.
  • a hose assembly 10 includes a flexible conduit 20 and an elongate handle 50.
  • Flexible conduit 20 is formed from a generally cylindrical flexible pipe which has a corrugated wall 22. Corrugations 24 are formed in wall 22 circumferential to the conduit 20 to permit the conduit 20 to flex and bend relative to its longitudinal axis Conduit 20 has a first end 26 and a second end 27 (not shown) which can be attached to a vacuum cleaner body portion (also not shown) which houses an electric motor and a dust container.
  • Conduit 20 is attached at its first end 26 to a connector portion 40 having first and second ends 41 and 42 respectively.
  • Connector 40 includes a generally cylindrical wall 43 which is enlarged at its second end 42 to receive first end 26 of flexible conduit 20.
  • First end 26 of conduit 20 is attached inside second end 42 of connector 40 to form an air-tight seal*
  • the first end 41 of connector 40 is shaped to enable it to mate with a cooperating portion of a vacuum cleaner nozzle (not shown) .
  • Elongate handle 50 comprises an elongate, substantially rigid hollow tube having first and second ends 51 and 52 respectively. Handle 50 towards its first end 51 is bent away from its longitudinal axis, and is welded at said first end 51 to the external surface of connector portion 40. Handle portion 50 towards its second end 52 is deflected away from its longitudinal axis to provide a portion 53 where an operator or user may hold the handle 50.
  • Handle 50 carries two conduit brackets 60 which are disposed towards second end 52 of handle 50 and are spaced apart one from the other.
  • Each conduit bracket includes a ring portion 61 which consists of a cylindrical wall having an external cylindrical surface 62 and two opposed annular edges 63.
  • Each ring portion 60 has an internal diameter which is large than the external diameter of flexible conduit 20, and is connected to handle 50 by a relatively short cylindrical stem 70 which is welded at one end to handle 50 and at its other end to the external surface 62 of ring portion 60.
  • Each bracket 60 is attached to handle 50 such that the axis of ring portion 61 is parallel to the axis of handle 50.
  • conduit 20 With the first end 26 of conduit 20 attached to connector portion 40, the second end 27 of conduit 20 is passed through ring portion 61 of each bracket 60. The conduit 20 is thus held juxtaposed handle 50. Second end 27 can then be connected to said vacuum cleaner body.
  • the electric motor in the vacuum cleaner body causes a flow of air to enter into conduit 20 at the second end 42 of connector portion 40 (or through a nozzle piece if attached to connector portion 40).
  • the operator holds handle 50 towards second end 52 and directs second end 27 of conduit 20 (or the nozzle) over a surface to be cleaned. Dirt and detritus entrained in the flow of air enters into conduit 20 and is collected in the dust container within the vacuum cleaner body.
  • the hose assembly as herein described is particularly suitable for use with vacuum cleaners for use i an industrial environment wherein the tubular wand assemblies used hitherto have proved to by heavy and unwieldy.
  • the present invention obviates the requirement for a tubular wand.
  • a substantial portion of the conduit between the vacuum cleaner body and the cleaning end or nozzle thereof can be formed of a flexible, light-weight material.
  • the rigid, elongate handle may be used to control the movement of the end of the conduit remote from the vacuum cleaner body. It will be appreciated that even where the handle is made of steel, it will be considerably lighter than the weight of a similar length of tubular wand.
  • the present invention therefore, provides a hose assembly suitable for use with an industrial-type vacuum cleaner which is lighter and more wieldy than the hose assemblies including a tubular wand hitherto employed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

La présente invention se rapporte à un ensemble tuyau flexible destiné à un aspirateur; cet ensemble se compose d'un conduit flexible (20), et d'une poignée (50) allongée, rigide, fixée audit conduit au niveau ou vers l'embout de travail (26) de celui-ci. Ledit conduit est conçu pour être raccordé au niveau de son autre extrémité (27) à l'aspirateur pour assurer l'écoulement d'air, et en fonctionnement, on se sert de la poignée pour diriger l'embout de travail du conduit sur une surface à nettoyer.
PCT/GB1992/001953 1991-10-25 1992-10-23 Ensemble tuyau flexible Ceased WO1993007797A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919122653A GB9122653D0 (en) 1991-10-25 1991-10-25 Hose assembly
GB9122653.0 1991-10-25

Publications (1)

Publication Number Publication Date
WO1993007797A1 true WO1993007797A1 (fr) 1993-04-29

Family

ID=10703514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/001953 Ceased WO1993007797A1 (fr) 1991-10-25 1992-10-23 Ensemble tuyau flexible

Country Status (3)

Country Link
AU (1) AU2801892A (fr)
GB (1) GB9122653D0 (fr)
WO (1) WO1993007797A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1023865A1 (fr) * 1999-01-27 2000-08-02 Josef Kränzle Dispositif de guidage pour le guidage et la connection d'une buse à un tuyau d'un appareil de nettoyage
WO2005094656A1 (fr) * 2004-04-03 2005-10-13 Smiths Group Plc Assemblages de tubes d'aspirateur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769999A (en) * 1953-05-22 1956-11-13 Gen Electric Suction cleaner hose and handle arrangement
US4246675A (en) * 1979-07-27 1981-01-27 Costanzo Dean V Industrial vacuum apparatus
NL8104552A (nl) * 1981-10-06 1983-05-02 Drs Peter Pappenheim Extra vasthoudinrichting voor het buisvormig hulpstuk bij een stofzuigerslang.
DE8808909U1 (de) * 1988-07-11 1989-11-09 Siemens AG, 1000 Berlin und 8000 München Staubsauger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769999A (en) * 1953-05-22 1956-11-13 Gen Electric Suction cleaner hose and handle arrangement
US4246675A (en) * 1979-07-27 1981-01-27 Costanzo Dean V Industrial vacuum apparatus
NL8104552A (nl) * 1981-10-06 1983-05-02 Drs Peter Pappenheim Extra vasthoudinrichting voor het buisvormig hulpstuk bij een stofzuigerslang.
DE8808909U1 (de) * 1988-07-11 1989-11-09 Siemens AG, 1000 Berlin und 8000 München Staubsauger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1023865A1 (fr) * 1999-01-27 2000-08-02 Josef Kränzle Dispositif de guidage pour le guidage et la connection d'une buse à un tuyau d'un appareil de nettoyage
DE19903075A1 (de) * 1999-01-27 2000-08-10 Josef Kraenzle Führungsvorrichtung zum Führen und Ankoppeln eines Düsenkopfes an einen Schlauch einer Reinigungsvorrichtung
WO2005094656A1 (fr) * 2004-04-03 2005-10-13 Smiths Group Plc Assemblages de tubes d'aspirateur

Also Published As

Publication number Publication date
GB9122653D0 (en) 1991-12-11
AU2801892A (en) 1993-05-21

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