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WO1993000035A1 - Cylinder-type vacuum cleaner - Google Patents

Cylinder-type vacuum cleaner Download PDF

Info

Publication number
WO1993000035A1
WO1993000035A1 PCT/GB1992/001153 GB9201153W WO9300035A1 WO 1993000035 A1 WO1993000035 A1 WO 1993000035A1 GB 9201153 W GB9201153 W GB 9201153W WO 9300035 A1 WO9300035 A1 WO 9300035A1
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum cleaner
cleaner according
waste bag
hose
conductor
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/GB1992/001153
Other languages
French (fr)
Inventor
Alec Lawrence
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.)
Convac Ltd
Original Assignee
Convac 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 Convac Ltd filed Critical Convac Ltd
Publication of WO1993000035A1 publication Critical patent/WO1993000035A1/en
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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1481—Means for removing bags in suction cleaners, e.g. ejecting means; Means for exchanging bags
    • 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
    • A47L9/0009—Storing devices ; Supports, stands or holders
    • A47L9/0018—Storing devices ; Supports, stands or holders integrated in or removably mounted upon the suction cleaner for storing parts of said suction cleaner
    • A47L9/0027—Storing devices ; Supports, stands or holders integrated in or removably mounted upon the suction cleaner for storing parts of said suction cleaner specially adapted for holding the suction cleaning tools
    • 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
    • A47L9/0009—Storing devices ; Supports, stands or holders
    • A47L9/0018—Storing devices ; Supports, stands or holders integrated in or removably mounted upon the suction cleaner for storing parts of said suction cleaner
    • A47L9/0036—Storing devices ; Supports, stands or holders integrated in or removably mounted upon the suction cleaner for storing parts of said suction cleaner specially adapted for holding the suction hose
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • This invention relates to a cylinder-type vacuum cleaner, wherein a flexible hose having a cleaning tool at one end at its other end engages a suction socket in the body of the cleaner.
  • Such cleaners are used often by maintenance engineers in a compact version as within a carrying case.
  • the invention therefore proposes a cylinder-type vacuum cleaner having a flexible hose with a cleaning tool at its one end which at its other end engages a suction socket in the body of the cleaner , wherein an electrical conductor connects the chassis of the vacuum pump motor to the flexible hose for dissipating static electricity at the hose.
  • the waste bag Since the powder or dust may carry an electrical charge and then accumulate in a waste bag within the cleaner, it is preferably arranged that the waste bag also makes electrical contact with the electrical conductor.
  • the conductor may be relatively wide in extent, for example an electrically conductive tape stuck within the body of the cleaner, where the waste bag is housed.
  • the waste bag which lies within just the suction socket may be mounted on a panel forming a wall of the cleaner, the panel being hinged to give access to the waste bag for removal and replacement.
  • Figure 1 is a perspective view of a vacuum cleaner according to the invention with its parts packed within its carrying-case?
  • Figure 2 shows a longitudinal section through the middle of the body of the cleaner, with the lid removed
  • Figure 3 shows a similar view to Figure 2, but with the waste bag in its pivoted axis position-up.
  • a vacuum cleaner has a body portion 10 with a lid 11 hinged thereto.
  • the lid has a handle (not shown) on its top surface.
  • a number of tools for connection to the cleaner are mounted for retention within the lid 11.
  • a small control panel 12 has an on/off switch and an i indicator light.
  • suitable spaced members and projections provide locations for storing a flexible hose 13 and the electric power cable 14.
  • a suction inlet At the other end of the body portion 10 is a suction inlet which cannot be seen in this illustration.
  • the body portion 10 and lid 11 are of injection moulded plastics material and are prone to accumulating relatively large static electricity charges. Turning now to Figure 2, the body section 10 is shown simplified, in longitudinal section.
  • Chamber 16 contains a vacuum pump driven by an electric motor 21, and chamber 17 contains the dust-collecting means.
  • the latter comprises an outer fabric bag 22 mounted removably within an annular frame 23. Within the outer fabric bag 22 is positioned an inner paper bag 24 which has a cardboard carrier member 25 which likewise locates in the frame 23.
  • the chambers, 16, 17 are closed respectively by a fixed panel 30 and a movable panel 31 which is hinged at 32 approximately at the point where the wall 18 divides the body portion.
  • the hinge 32 may be on the panel 30 or the sides of the body portion 10.
  • the frame 23 is in turn hinged at 33 to the movable panel 31.
  • the top surface of the panels 30, 31 carry the various posts and other formations for holding the hose 30 and the power cable 14.
  • the end wall 35 of the body portion 10 has a circular opening delimited by a socket member 36, and an electrical conductor 37 extends from the socket member 36 to the pump and motor 21.
  • the flexible hose 13 plugs into the socket member 36 and then directly through an aperture in the cardboard member 25 into the paper inner waste-collecting bag.
  • the hose 13, its plug end and the socket member 36 are preferably made of materials which conduct or partially conduct electricity, such as a plastics composition containing a carbon black filler. This will prevent users of the vacuum cleaner from receiving static electric shocks.
  • Figure 3 illustrates the simple way of removing and replacing the dust-collecting bags 22, 24.
  • the closure panel 31 is pivoted at the hinge 32.
  • the cardboard member 25 can easily be grasped for removal and replacement.
  • the aperture in the cardboard member 25 comes automatically to lie adjacent to the socket member 36, and simultaneously the cloth bag 22 makes contact with the electrical conductor 37 so as to dissipate any static collecting in the bag or its contents.
  • the conductor 37 is made with a width of about 1 to 5 cms. in the form of an adhesive tape carrying a conductive surface, for example of aluminium.
  • the annular frame 23 in the raised position locates within the top edge of end wall 35 to hold the panel 31 in its opened position.
  • the socket member 36 is provided with a closure device to ensure that dust collected cannot escape again. Earlier cleaners have had a removable bung.
  • the present device is provided with a pivoting shutter within the end wall 35 with an external actuating knob. Before the hose 13 is plugged in, the shutter is swung away to clear the opening, and is swung back to close it after use. In a further version, the shutter is sprung and arranged to swing closed as the hose 13 is withdrawn, avoiding the possibility that the user forgets to close it. It must be opened again by hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

A cylinder-type vacuum cleaner where the hose (13) is connected to the motor (21) by an electrical conductor (37) is disclosed. The arrangement minimises the accumulation of static charge on the hose. The waste bag (22) within the cleaner can also be connected to the conductor.

Description

Cylinder-type Vacuum Cleaner
This invention relates to a cylinder-type vacuum cleaner, wherein a flexible hose having a cleaning tool at one end at its other end engages a suction socket in the body of the cleaner.
Such cleaners are used often by maintenance engineers in a compact version as within a carrying case. A problem frequently arises that a considerable static electrical charge can build up on the cleaning tool and the suction hose, particularly when used for cleaning equipment which itself builds up static charges, or for cleaning powdery wastes which themselves carry a charge, for example copier toner.
The invention therefore proposes a cylinder-type vacuum cleaner having a flexible hose with a cleaning tool at its one end which at its other end engages a suction socket in the body of the cleaner , wherein an electrical conductor connects the chassis of the vacuum pump motor to the flexible hose for dissipating static electricity at the hose.
Since the powder or dust may carry an electrical charge and then accumulate in a waste bag within the cleaner, it is preferably arranged that the waste bag also makes electrical contact with the electrical conductor. For this purpose, the conductor may be relatively wide in extent, for example an electrically conductive tape stuck within the body of the cleaner, where the waste bag is housed.
In order further to improve the effectiveness and simplicity of use, the waste bag which lies within just the suction socket may be mounted on a panel forming a wall of the cleaner, the panel being hinged to give access to the waste bag for removal and replacement.
In order that the invention shall be clearly understood an exemplary embodiment thereof will now be described with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a vacuum cleaner according to the invention with its parts packed within its carrying-case?
Figure 2 shows a longitudinal section through the middle of the body of the cleaner, with the lid removed; and
Figure 3 shows a similar view to Figure 2, but with the waste bag in its pivoted axis position-up.
A vacuum cleaner has a body portion 10 with a lid 11 hinged thereto. The lid has a handle (not shown) on its top surface. A number of tools for connection to the cleaner are mounted for retention within the lid 11. A small control panel 12 has an on/off switch and an i indicator light. On the top surface of the body portion 10, suitable spaced members and projections provide locations for storing a flexible hose 13 and the electric power cable 14. At the other end of the body portion 10 is a suction inlet which cannot be seen in this illustration. The body portion 10 and lid 11 are of injection moulded plastics material and are prone to accumulating relatively large static electricity charges. Turning now to Figure 2, the body section 10 is shown simplified, in longitudinal section. It can be seen to be divided into hollow chambers 16, 17 by a wall 18 which includes a grill 19, preferably with a filter, so that it is air-permeable. Chamber 16 contains a vacuum pump driven by an electric motor 21, and chamber 17 contains the dust-collecting means. The latter comprises an outer fabric bag 22 mounted removably within an annular frame 23. Within the outer fabric bag 22 is positioned an inner paper bag 24 which has a cardboard carrier member 25 which likewise locates in the frame 23.
The chambers, 16, 17 are closed respectively by a fixed panel 30 and a movable panel 31 which is hinged at 32 approximately at the point where the wall 18 divides the body portion. The hinge 32 may be on the panel 30 or the sides of the body portion 10. The frame 23 is in turn hinged at 33 to the movable panel 31. The top surface of the panels 30, 31 carry the various posts and other formations for holding the hose 30 and the power cable 14.
The end wall 35 of the body portion 10 has a circular opening delimited by a socket member 36, and an electrical conductor 37 extends from the socket member 36 to the pump and motor 21. In use, the flexible hose 13 plugs into the socket member 36 and then directly through an aperture in the cardboard member 25 into the paper inner waste-collecting bag.
It will be seen that any tendency for static electricity to build up on the hose 13 or its tools is dissipated by virtue of the electrical connection 37 leading to the motor which in turn is earthed. For this action to be most effective, the hose 13, its plug end and the socket member 36 are preferably made of materials which conduct or partially conduct electricity, such as a plastics composition containing a carbon black filler. This will prevent users of the vacuum cleaner from receiving static electric shocks.
Figure 3 illustrates the simple way of removing and replacing the dust-collecting bags 22, 24. The closure panel 31 is pivoted at the hinge 32. In the raised position shown in Figure 3, the cardboard member 25 can easily be grasped for removal and replacement. When lowered again, the aperture in the cardboard member 25 comes automatically to lie adjacent to the socket member 36, and simultaneously the cloth bag 22 makes contact with the electrical conductor 37 so as to dissipate any static collecting in the bag or its contents. For this purpose, the conductor 37 is made with a width of about 1 to 5 cms. in the form of an adhesive tape carrying a conductive surface, for example of aluminium. As shown the annular frame 23 in the raised position locates within the top edge of end wall 35 to hold the panel 31 in its opened position.
Although not illustrated, the socket member 36 is provided with a closure device to ensure that dust collected cannot escape again. Earlier cleaners have had a removable bung. The present device is provided with a pivoting shutter within the end wall 35 with an external actuating knob. Before the hose 13 is plugged in, the shutter is swung away to clear the opening, and is swung back to close it after use. In a further version, the shutter is sprung and arranged to swing closed as the hose 13 is withdrawn, avoiding the possibility that the user forgets to close it. It must be opened again by hand.

Claims

Claims
1. A cylinder-type vacuum cleaner having a motor and flexible hose with a cleaning tool at its one end which at its other end engages a suction socket in the body of the cleaner, wherein an electrical conductor connects the motor to the flexible hose.
2. A vacuum cleaner according to claim 1, further comprising a waste bag arranged within the cleaner, wherein the waste bag also makes electrical contact with the electric conductor.
3. A vacuum cleaner according to claim 2, wherein the conductor is relatively wide in extent.
4. A vacuum cleaner according to claims 2 or 3, wherein the conductor comprises an electrically conductive tape stuck within the body of the cleaner, where the waste bag is housed.
5. A vacuum cleaner according to claim 4, wherein the tape is an adhesive tape.
6. A vacuum cleaner according to any preceding claim, wherein one or more of the following components are made from a material which conducts or partially conducts electricity: the hose, the cleaning tool, the suction sucket.
7. A vacuum cleaner according to claim 6, wherein said component(s) are made from a plastics composition containing carbon black.
8. A vacuum cleaner according to any of claims 2 to 7, wherein the waste bag is mounted on a panel forming a wall of the cleaner, the panel being hinged to give access to the waste bag.
9. A vacuum cleaner according to claim 8, wherein the waste bag is mounted just within the suction socket.
10. A vacuum cleaner according to any preceding claim, wherein the conductor is connected to the chassis of the motor.
11. A cylinder-type vacuum cleaner having a motor and a flexible hose with a cleaning tool at its one end which at its other end engages a suction socket in the body of the cleaner, wherein the socket is provided with closure means which allow the socket to be closed before the hose is disengaged and opened after the hose has been engaged.
PCT/GB1992/001153 1991-06-27 1992-06-25 Cylinder-type vacuum cleaner Ceased WO1993000035A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919113839A GB9113839D0 (en) 1991-06-27 1991-06-27 Cylinder-type vacuum cleaner
GB9113839.6 1991-06-27

Publications (1)

Publication Number Publication Date
WO1993000035A1 true WO1993000035A1 (en) 1993-01-07

Family

ID=10697391

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/001153 Ceased WO1993000035A1 (en) 1991-06-27 1992-06-25 Cylinder-type vacuum cleaner

Country Status (3)

Country Link
GB (1) GB9113839D0 (en)
IE (1) IE922060A1 (en)
WO (1) WO1993000035A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027452A1 (en) * 1995-03-03 1996-09-12 Alsident System A/S An exhaust line
GB2374524A (en) * 2001-04-17 2002-10-23 Hoover Ltd Vacuum cleaner with dust bag removal means
EP1570776A3 (en) * 2004-03-02 2006-12-06 Andreas Stihl AG & Co. KG Suction/blowing apparatus
JP2013202327A (en) * 2012-03-29 2013-10-07 Hitachi Koki Co Ltd Electric dust collector and ground mounting structure in electric dust collector
US11490773B2 (en) * 2018-10-30 2022-11-08 Shop Vac Corporation Filter system for a vacuum cleaner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740103A (en) * 1951-06-19 1955-11-09 Doyle Vacuum Cleaner Co Improvements in dust collectors
DE1503881A1 (en) * 1965-09-04 1969-06-12 Siemens Elektrogeraete Gmbh Vacuum cleaner with metallic parts that conduct air flow
US4866565A (en) * 1989-01-13 1989-09-12 The Kent Company Vacuum cleaner electrostatic build up control system
JPH01259825A (en) * 1988-04-08 1989-10-17 Sanyo Electric Co Ltd Vacuum cleaner
EP0361240A1 (en) * 1988-09-30 1990-04-04 Siemens Aktiengesellschaft Dust bag for a suction cleaner
JPH02185219A (en) * 1989-01-13 1990-07-19 Sanyo Electric Co Ltd Vacuum cleaner
JPH03295526A (en) * 1990-04-12 1991-12-26 Matsushita Electric Ind Co Ltd Vacuum cleaner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740103A (en) * 1951-06-19 1955-11-09 Doyle Vacuum Cleaner Co Improvements in dust collectors
DE1503881A1 (en) * 1965-09-04 1969-06-12 Siemens Elektrogeraete Gmbh Vacuum cleaner with metallic parts that conduct air flow
JPH01259825A (en) * 1988-04-08 1989-10-17 Sanyo Electric Co Ltd Vacuum cleaner
EP0361240A1 (en) * 1988-09-30 1990-04-04 Siemens Aktiengesellschaft Dust bag for a suction cleaner
US4866565A (en) * 1989-01-13 1989-09-12 The Kent Company Vacuum cleaner electrostatic build up control system
JPH02185219A (en) * 1989-01-13 1990-07-19 Sanyo Electric Co Ltd Vacuum cleaner
JPH03295526A (en) * 1990-04-12 1991-12-26 Matsushita Electric Ind Co Ltd Vacuum cleaner

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 017 (C-675)16 January 1990 & JP,A,01 259 825 ( SANYO ELECTRIC CO LTD ) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 458 (C-766)13 January 1989 & JP,A,02 185 219 ( SANYO ELECTRIC CO LTD ) *
PATENT ABSTRACTS OF JAPAN vol. 16, no. 133 (C-925)6 April 1992 & JP,A,03 295 526 ( MATSUSHITA ELECTRIC IND CO LTD ) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996027452A1 (en) * 1995-03-03 1996-09-12 Alsident System A/S An exhaust line
GB2374524A (en) * 2001-04-17 2002-10-23 Hoover Ltd Vacuum cleaner with dust bag removal means
GB2374524B (en) * 2001-04-17 2004-08-04 Hoover Ltd Vacuum cleaner
EP1570776A3 (en) * 2004-03-02 2006-12-06 Andreas Stihl AG & Co. KG Suction/blowing apparatus
US7279021B2 (en) 2004-03-02 2007-10-09 Andreas Stihl Ag & Co. Kg Suction device/blower
JP2013202327A (en) * 2012-03-29 2013-10-07 Hitachi Koki Co Ltd Electric dust collector and ground mounting structure in electric dust collector
US11490773B2 (en) * 2018-10-30 2022-11-08 Shop Vac Corporation Filter system for a vacuum cleaner

Also Published As

Publication number Publication date
IE922060A1 (en) 1992-12-30
GB9113839D0 (en) 1991-08-14

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