EP0136894A2 - Antiausrückvorrichtung - Google Patents

Antiausrückvorrichtung Download PDF

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Publication number
EP0136894A2
EP0136894A2 EP19840306644 EP84306644A EP0136894A2 EP 0136894 A2 EP0136894 A2 EP 0136894A2 EP 19840306644 EP19840306644 EP 19840306644 EP 84306644 A EP84306644 A EP 84306644A EP 0136894 A2 EP0136894 A2 EP 0136894A2
Authority
EP
European Patent Office
Prior art keywords
hose
coupling
conductor
receptacle
disengagement
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.)
Withdrawn
Application number
EP19840306644
Other languages
English (en)
French (fr)
Inventor
John T. Ferraris
James E. Billick
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.)
Electrolux Corp
Original Assignee
Electrolux Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Corp filed Critical Electrolux Corp
Publication of EP0136894A2 publication Critical patent/EP0136894A2/de
Withdrawn legal-status Critical Current

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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
    • A47L9/28—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
    • 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
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof

Definitions

  • This invention relates to electrical connectors, and more particularly to a strain relief and anti-swivel device for use in attaching a hose and an associated electrical conductor to a vacuum cleaner or other body.
  • the suction motor unit and dust-collecting bag are housed in a body, or canister, which has an orifice that can be connected by a hose to any of various cleaning nozzle attachments.
  • the body is movably supported on the floor and the hose can be used to pull the body along the floor. It is common for the hose to be connected to the orifice in such a way that it can swivel, or rotate, relative to the orifice, so that the hose does not become kinked as the vacuum cleaner is moved in different directions along the floor.
  • a vacuum cleaner equipped with a power nozzle attachment is usually provided with an electrical receptacle on the body and a power cord to conduct electrical power from the receptacle to the power nozzle.
  • the cord is either molded into the hose or mounted on the exterior surface of the hose, and is removably attached as by plugs to the receptacle at one end and to the power nozzle at the other end.
  • the swiveling feature of the connection between the hose and the orifice can be a disadvantage.
  • the free portion of the power cord between the orifice and the receptacle wraps around the hose, causing strain on the connection of the cord to the receptacle and sometimes disengaging the cord from the receptacle.
  • the hose is typically flexible and longitudinally expandable. When used to move the body along the floor, it will expand longitudinally, applying longitudinal tension to the free portion of the cord, which also tends to disengage the cord from the receptacle.
  • an anti-disengagement device which will prevent both disengagement of a cord associated with a hose from a receptacle in a body to which one end of the hose is attached because of rotation of the hose relative to the body, and disengagement of the cord from the receptacle because of longitudinal tension on the cord caused by longitudinal expansion of the hose.
  • the hose has a tubular section of which at least a portion is flexible and a coupling at one end for securing the hose to the orifice.
  • An electrical conductor is associated with the hose for conducting electrical power along the hose from the receptacle.
  • the conductor has an enlarged portion.
  • the anti-disengagement device removably associated with the coupling, is adapted to cooperate with the body, the coupling, and the enlarged portion, for preventing disengagement of the cord from the receptacle.
  • FIG. 1 shows a vacuum cleaner incorporating the device of the invention.
  • the vacuum cleaner includes a body 10 having an upper section 11 which houses the suction motor unit (not shown), and a wheeled lower section 12 which houses the dust collecting bag (not shown).
  • Suction hose 13 is connected at one end to lower body section 12 at orifice 14. The other end of hose 13 is connected to rigid wand 15, which is connected to power nozzle 16.
  • Hose 13 can also be connected to any one of a number of standard attachments with or without the use of wand 15.
  • Power nozzle 16 has a power cord 17 which attaches to receptacle 18 on upper body section 11 for supplying power to the motor (not shown) of power nozzle 16.
  • Power nozzle cord 17 travels along hose 13 from power nozzle 16 to vacuum cleaner body 10.
  • cord 17 is attached to the exterior surface of hose 13 by hose straps 19. It is also possible for cord 17 to be molded into hose 13.
  • hose 13 has a coupling 20 for connection of hose 13 to orifice 14.
  • spring clips 50 engage lip 51 formed in the interior of orifice 14 (see FIG. 5), holding hose 13 in place.
  • Hose 13 can be released by exerting inward pressure on coupling-releasing buttons 52, which disengages clips 50 from lip 51.
  • Lip 51 extends 360° around the interior of orifice 14, so that coupling 20 can be inserted in any rotational orientation, and can be freely rotated while inserted.
  • Power nozzle cord 17 has a free portion, shown fragmentarily at 21 in FIGS. 2 and 6, which extends beyond coupling 20 and terminates in male plug 22 which attaches to female receptacle 18.
  • Plug 22 has flat "hot” and “common” prongs 60 and a round “ground” prong 61 much like an ordinary three- pronged grounded plug for connection to an ordinary electrical wall outlet.
  • the size and spacing of the prongs of plug 22, and the respective slots (not shown) in receptacle 18, are selected so that plug 22 cannot be inserted in an ordinary wall outlet, nor can an ordinary plug be inserted in receptacle 18.
  • Power nozzle cord 17 is connected to receptacle 18 only when power nozzle 16 is in use. At other times cord 17 is left free, device 62 is removed and coupling 20 is allowed to rotate freely within orifice 14 when hose 13 is pulled, for example, to move body 10 about the floor. This freedom of rotation prevents kinking of hose 13 which might otherwise occur as hose 13 is pulled in different directions.
  • Device 62 comprises a ring 63 having apertures 64 in its annular wall and a tongue 65 and a fork 66 projecting radially from the ring 63.
  • the fork 66 includes two closely-spaced radial projections 66a, 66b.
  • the width of slot 66c between projections 66a and 66b is slightly greater than the diameter of cord 17.
  • the number and locations of apertures 64 correspond to the number and locations of coupling-releasing buttons 52.
  • An enlarged portion 67 disposed on cord 17 and posts 68 protruding from lower body section 12 adjacent orifice 14 cooperate with device 62 as described below.
  • ring 63 of device 62 is slipped onto coupling 20, over clips 50, until coupling-releasing buttons 52 engage indentations or apertures 64.
  • the engagement of buttons 52 with apertures 64 prevents rotation of coupling 20 and hose 13 relative to device 62.
  • Coupling 20 is then inserted into orifice 14 at such an orientation that tongue 65 is disposed between posts 68, which are spaced only slightly farther apart than the width of tongue 65, as shown in FIG. 3. This orientation prevents rotation of device 62 relative to lower body section 12. Because device 62 is already prevented from rotation relative to coupling 20 and hose 13, coupling 20 and hose 13 are prevented from rotation relative to lower body section 12.
  • enlarged portion 67 on cord 17, shown here as a sphere cooperates with fork 66.
  • Sphere 67 is placed between fork 66 and lower body section 12, with cord 17 resting in slot 66c. Because of this arrangement longitudinal tension on cord 17 is borne by fork 66 and sphere 67.
  • projections 66a and 66b each have lips 66d, 66e which extend toward body section 12 and prevent vertical and horizontal displacement of sphere 67.
  • the portions of cord 17 immediately adjacent either side of sphere 67 define an angle 69 substantially less than 180° with each other.
  • angle 69 is approximately 90°. This serves to change the direction of the cord so that free portion 21 is in better alignment for engagement with receptacle 18. If angle 69 were exactly or nearly 180°, cord 17 would have to be bent to align it for engagement with receptacle 18, and resulting elastic restoring forces in the bent portions of the cord would tend to straighten the cord. These forces could cause sphere 67 to be displaced from engagement with fork 66. The function of fork 66 in preventing disengagement of plug 22 from receptacle 18 is therefore improved by the provision of angle 69.
  • a device which will prevent both disengagement of a hose-mounted cord from a receptacle on a separate body because of rotation of the hose relative to the body, and disengagement of the cord from the receptacle because of longitudinal tension on the cord caused by longitudinal expansion of the hose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP19840306644 1983-09-30 1984-09-28 Antiausrückvorrichtung Withdrawn EP0136894A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53764583A 1983-09-30 1983-09-30
US537645 1983-09-30

Publications (1)

Publication Number Publication Date
EP0136894A2 true EP0136894A2 (de) 1985-04-10

Family

ID=24143516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840306644 Withdrawn EP0136894A2 (de) 1983-09-30 1984-09-28 Antiausrückvorrichtung

Country Status (1)

Country Link
EP (1) EP0136894A2 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552444A1 (de) * 1992-01-18 1993-07-28 AEG Hausgeräte GmbH Staubsauger mit einer Trennwand
FR2773700A1 (fr) * 1998-01-22 1999-07-23 Seb Sa Embase de prise electrique fixee sur aspirateur
GB2537584A (en) * 2015-02-13 2016-10-26 Dyson Technology Ltd A fan
US10041504B2 (en) 2015-02-13 2018-08-07 Dyson Technology Limited Fan
US10094395B2 (en) 2015-02-13 2018-10-09 Dyson Technology Limited Fan
US10202983B2 (en) 2015-02-13 2019-02-12 Dyson Technology Limited Fan
US10260521B2 (en) 2015-02-13 2019-04-16 Dyson Technology Limited Fan
US10260529B2 (en) 2015-02-13 2019-04-16 Dyson Technology Limited Fan

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0552444A1 (de) * 1992-01-18 1993-07-28 AEG Hausgeräte GmbH Staubsauger mit einer Trennwand
FR2773700A1 (fr) * 1998-01-22 1999-07-23 Seb Sa Embase de prise electrique fixee sur aspirateur
WO1999038231A1 (fr) * 1998-01-22 1999-07-29 Seb S.A. Embase de prise electrique fixee sur aspirateur
GB2537584A (en) * 2015-02-13 2016-10-26 Dyson Technology Ltd A fan
US10041504B2 (en) 2015-02-13 2018-08-07 Dyson Technology Limited Fan
US10094395B2 (en) 2015-02-13 2018-10-09 Dyson Technology Limited Fan
US10174764B2 (en) 2015-02-13 2019-01-08 Dyson Technology Limited Fan with nozzle retainer
US10202983B2 (en) 2015-02-13 2019-02-12 Dyson Technology Limited Fan
US10260521B2 (en) 2015-02-13 2019-04-16 Dyson Technology Limited Fan
US10260529B2 (en) 2015-02-13 2019-04-16 Dyson Technology Limited Fan
GB2537584B (en) * 2015-02-13 2019-05-15 Dyson Technology Ltd Fan assembly comprising a nozzle releasably retained on a body

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19861001

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BILLICK, JAMES E.

Inventor name: FERRARIS, JOHN T.