US3813054A - Cord-winding structure for mobile electrical appliance - Google Patents

Cord-winding structure for mobile electrical appliance Download PDF

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Publication number
US3813054A
US3813054A US00251798A US25179872A US3813054A US 3813054 A US3813054 A US 3813054A US 00251798 A US00251798 A US 00251798A US 25179872 A US25179872 A US 25179872A US 3813054 A US3813054 A US 3813054A
Authority
US
United States
Prior art keywords
casing
wheel
cord
spool
side wall
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.)
Expired - Lifetime
Application number
US00251798A
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English (en)
Inventor
C Klingspor
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 AB
Original Assignee
Electrolux AB
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 AB filed Critical Electrolux AB
Application granted granted Critical
Publication of US3813054A publication Critical patent/US3813054A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L9/26—Incorporation of winding devices for electric cables
    • 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
    • A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7045—Interdigitated ends

Definitions

  • Cord-winding structure often is provided for electrical appliances of the type that are movable over a floor or rug surface, such as vacuum cleaners and the like, for example.
  • Such cord-winding structure includes a spool which is rotatably mounted within the housing of the appliance and has an electrical cord for supplying electrical energy to the motor of the appliance.
  • the electrical cord which is respectively wound on and unwound from the spool, is accessible exteriorly of the ap pliance and passes through an opening in its housing.
  • the cord-winding structure is located within the appliance at the end thereof at which the relatively large supporting wheels are located. This makes it difficult to find a suitable location for the opening in the appliance housing through which the electrical cord for the cord-winding structure passes exteriorly of the appliance.
  • the opening for the electrical cord cannot be located at the rear wall of the housing because this will impart movement to the appliance when the electrical cord is being unwound from its spool, which is objectionable.
  • the opening for the electrical cord cannot be located at the top of the appliance, especially appliances like vacuum cleaners which are relatively light in weight because pulling the cord exteriorly of the housing will lift and raise the appliance from the supporting surface which also is objectionable.
  • FIG. I is a perspective view of a household vacuum cleaner of the horizontal type having cord-winding structure therein for an electrical cord which is accessible exteriorly of the cleaner and passes through a side wall thereof in accordance with my invention at an opening at which region an apertured supporting wheel is rotatably supported;
  • FIG. 2 is an enlarged fragmentary longitudinal sectional view taken at line 2-2 of FIG. 1;
  • FIG. 3 is a view, partly in section, taken at line 3-3 of FIG. 2;
  • FIG. 4 is an enlarged sectional view taken at line 4-4 of FIG. 3;
  • FIG. 5 is an exploded perspective view of parts shown in FIGS. 3 and 4 to illustrate details more clearly.
  • FIG. 1 my invention has been shown in connection with a horizontal tank-type vacuum cleaner 9 comprising a casing 10, a front end cover 13 and rear end cover 12.
  • the casing 10 is provided with a handle 11 across the top 10a of the casing 10 and wheels 18 and 18' at the side walls 10b to facilitate movement thereof on a supporting surface.
  • a caster wheel (not shown) may be provided at the bottom of the casing 10, at the front end thereof, such caster wheel being centrally disposed between the side walls 10b and rotatable about a vertical axis to promote turning of the cleaner 9;
  • the front end cover 13 which is removably secured to the casing 10 in any suitable manner, is formed with an inlet to which a suction hose I4 is adapted to be removably connected.
  • Suitable cleaning tools may be connected to the outer free end of the suction hose l4 and through which air flows into the casing at the front end of which is disposed a dust bag (not shown) in which dirt is collected.
  • Flow of air through casing 10 is effected by a motorfan unit, a part of which is diagrammatically indicated at 31 and includes a motor and fan, respectively.
  • the fan receives air which passes through the dust bag and is substantially free of dust and dirt, such air being discharged from the fan through end openings 31' in the motor housing and eventually passing through an outlet at the top 10a of the casing which is provided with a suitable screen 15.
  • the motor-fan unit 31 is mounted on an inner transverse wall or partition 30 of the rear end cover 12.
  • Cord-winding structure 8 is mounted within the rear end cover 12 between the inner and outer walls 30 and 29 thereof.
  • the cord-winding structure comprises a spool 7 having a shaft 28 which is rotatably mounted in recessed portions of the walls 29 and 30.
  • the spool 7 includes two circular side walls or flanges 25 and a substantially cylindrical barrel or hub 24 extending between the flanges and on which an electrical cord 21 can be wound.
  • One end of the electrical cord 21 extends out of the rear cover 12 through an opening 20 in the side wall thereof, and such end of the cord carries the usual plug 22 for an electrical outlet or receptacle.
  • the axis of the opening 20 is transverse to the side walls 101; of the casing at a region between the spaced sides or walls 25.
  • the other or inner end of the electrical cord 21 is anchored or connected to the spool 7.
  • the inner end of the cord 21 is connected in any well known manner to the motor circuit which includes the motor of the motor-fan unit 31 and a switch 16.
  • one of the flanges or side walls 25 of the spool can be provided with concentric slip rings to each of which a different one of a pair of electrical conductors of the cord 21 can be connected.
  • leaf springs which form electrical connecting points to the motor circuit, can be provided with contact buttons which bear against the slip rings provided on the spool 7.
  • the spring drive which may be of any well known type and like that disclosed in US. Nilsson Pat. No. 3,339,030, includes a spring 27 which is disposed about an axially extending flange 26 which projects from one of the side walls of the spool 7.
  • the electrical cord 21 is accessible exteriorly of the vacuum cleaner 9 and passes through the axis of the supporting wheel 18 which is apertured and rotatably mounted on the side wall of the rear end cover 12 at the opening 20 therein.
  • the structure for mounting the wheel 18 on the cleaner at the opening 20 includes a hub part 33 in the form of a split hollow member which is slotted at 33a in a lengthwise direction to provide a plurality of resilient fingers 33b having outwardly extending hooks 35 at their outer ends, as shown in FIGS. 3 and 5.
  • the hooks 35 function as radially movable catches arranged to engage the inner surface 36 of the side wall of the rear end cover 12 at the opening 20 therein.
  • the mounting structure for the supporting wheel 18 further includes a hollow sleeve 34 having spaced axially extending lugs 34a and 34b projecting radially therefrom.
  • the hub part 33 receives the hollow sleeve 34 with the lugs 34a extending into the slots 33a.
  • the hollow sleeve 34 functions to maintain the catches 35 radially outward in engagement with the inner surface 36 of the side wall of the rear end cover 12 at the opening 20, as best shown in FIG. 3.
  • the outer surfaces of the lugs 34a do not project radially outward beyond the outer surface of the hub part 33 which also has been referred to as a split hollow member.
  • the hub part 33 which may be referred to as a first hub part, coacts with a second hub part 32.
  • the second hub part 32 forms a stationary component of the casing 10, and more particularly the rear end cover part 12 thereof.
  • the side wall of the rear end cover 12 is U-shaped in traverse section and includes a pair of spaced horizontal arms 32a and 32 and a closed vertically disposed end 32b defining a recess to receive the upper portion of the wheel 18.
  • the lower arm 32 is of circular form and defines the second hub part which is disposed about and envelops the first hub part 33.
  • the lug 34b of the hollow sleeve 34 projects through and beyond one of the slots 33a in the first hub part 33 and extends radially into a groove 32 formed at the inner surface of the second hub part 32. It will now be understood that the first or inner hub part 33, with the aid of the lug 34b of the hollow sleeve 34, is interlocked with the second or outer hub part 32 which forms a unitary part or component of the side wall of the rear end cover 12 at the opening 20 therein. With this construction angular movement of the first hub part 33 with respect to the rear end cover 12 is prevented.
  • the first hub part 33 is provided with a flange 38 which extends radially outward from its outer end and bears against the outer face of the wheel 18 and functions to retain the latter on the hub part 32.
  • the flange 38 provides a surface which is in the path of movement of a snubber 23 which is fixed to the electrical cord 21 at a region removed from its outer end and functions to stop inward movement of the cord into the interior of the cleaner 9.
  • the snubber 23 stops inward movement of the electrical cord at the opening 20, the axis of the apertured wheel 18 substan tially coinciding with the axis of such opening to provide a passageway through which the cord extends-
  • a bushing 37 is disposed about the outer surface of the second hub part 32 and the surface of the wheel 18 defining the aperture 18a therein.
  • the bushing 37 is provided with a flange 37a which is disposed between the outer surface of the rear end cover part 12 of the casing 10 and the inner face or side of the wheel 18, the outer face or side of which is acted upon by the flange 38 of the first hub part 33 to retain the wheel on the hub part 32. It will be seen that the flange 38 also acts against the outer end of the bushing 37.
  • the wheel 18 is provided with a tread 41 which can be formed of an elastomeric material, such as rubber or plastic. Since the flange 38 acts against the outer face of the wheel 18, an apertured member 39 overlies the outer face of the wheel 18 proper and is removable therefrom. Hence, the flange 38 actually bears against the apertured member 39 which can slide over the inner surface of the flange 38. In addition, the apertured member 39 is provided with a cover 40 to hold it against the outer face of the wheel 18.
  • the apertured member 39, cover 40, the first hub part 33 including the flange 38 thereof and hollow sleeve 34 can be formed of rigid plastic or of metal.
  • the passageway for the electrical cord 21 is formed at the opening 20 by the first hub part 33 and the hollow sleeve 34, as seen in FIG. 3.
  • the cord 21 moves through the opening 20 in either direction there through, it is generally at an angle to the axis of the opening.
  • the cord 2l usually is directed in a lateral direction toward the vertical sides of the opening and rarely upward or downward toward the top and bottom, respectively, of the opening.
  • the latter desirably is of oval shape with the longer sides vertical.
  • the first hub part 33 and hollow sleeve 34 are formed so that the passageway formed in these parts is also oval-shaped in crosssection.
  • the wheel 18' at the side of the vacuum cleaner 9 opposite the wheel 18 shown in FIG. 3 and just described can be similar to the wheel 18 with one' change, namely, that the hub part 33 for the wheel 18' is formed with an imperforate flange which overlies and closes the opening 20 of the casing at which the wheel 18' is rotatably mounted. in this way the wheels 18 and 18 will generally look alike and the appearance of the vacuum cleaner will be enhanced. Moreover, duplicate parts can be employed to mount the wheels 18 and 18' on the vacuum cleaner except for the hub part 33 and flange 38, the flange 38 being apertured for the wheel 18 and solid or imperforate for the wheel 18, as pointed out above.
  • a hollow casing having a top, bottom and connecting side walls,
  • cord-winding structure disposed within said casing comprising a rotatable spool and an electrical cord spool,
  • means including at least one wheel for supporting said casing for movement on a surface, said wheel being apertured at the vicinity of its axis about which it rotates, and
  • said means for rotatably supporting said wheel on said casing comprising a hub including a part extending inward toward said casing at the opening in the side wall thereof,
  • said hub part including resilient means which coacts with the inner surface of the side wall about the opening therein to removably fasten said hub to the side wall, and
  • said resilient means comprises a plurality of radially movable catches forming a unitary part of said hub part, whereby said hub part defines a split hollow member.
  • said interlocking means comprises a hollow sleeve positioned in said split hollow member which functions to maintain said catches radially outward in engagement with the inner surface of the side wall.
  • said hub part is provided with a flange which extends radially outward from its outer end and functions to retain said apertured wheel on said hub, said electrical cord having a connecting plug at its outer end and a snubber fixed thereto at a region removed from its outer end, and said flange providing a surface which is in the path of movement of said snubber when said cord is being wound on said spool and functions to stop inward movement of said cord through said passageway.
  • said hub part provided with said flange constitutes a first part of said hub, said hub including a second part which forms a stationary component of said casing and is disposed about and envelops said first hub part, and a bushing disposed between the outer surface of said second hub part and the surface of said wheel defining the aperture therein.
  • said bushing includes a flange which is disposed between the outer surface of said casing and one side of said wheel, the opposite side of said wheel being acted upon by the flange of said first hub part to retain said wheel on said hub.
  • said split hollow member comprises a plurality of axially extending fingers having slots therebetween, the outer extremities of said fingers having hooks serving as said catches, said hollow sleeve having at least one lug which projects radially therefrom and extends into one of said slots and functions to maintain said catches radially outward in engagement with the inner surface of the side wall.
  • the wall includes a part which forms a unitary component thereof and is provided with'an internal groove, said hollow sleeve having an additional lug which projects radially therefrom and extends through another of said slots into said internal groove to prevent angular movement of said split hollow member about its axis with respect to said wall.
  • a hollow casing having a top, bottom and connecting side walls,
  • cord-winding structure disposed within said casing comprising a rotatable spool and an electrical cord connected thereto which is wound on and from the spool, said spool having spaced sides transverse to at least one of the side wallsof said casing,
  • said spool being rotatable in one direction for winding said cord thereon, said spool being rotatable in the opposite direction by unwinding of said cord from said spool,
  • e..means including at least one wheel for supporting said casing for movement on a surface, said wheel being apertured at the vicinity of its axis about which it rotates, and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
US00251798A 1971-05-10 1972-05-09 Cord-winding structure for mobile electrical appliance Expired - Lifetime US3813054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE6024/71A SE344164B (cs) 1971-05-10 1971-05-10

Publications (1)

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US3813054A true US3813054A (en) 1974-05-28

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US00251798A Expired - Lifetime US3813054A (en) 1971-05-10 1972-05-09 Cord-winding structure for mobile electrical appliance

Country Status (8)

Country Link
US (1) US3813054A (cs)
JP (1) JPS567692B1 (cs)
CA (1) CA967132A (cs)
DE (1) DE2222644A1 (cs)
FR (1) FR2137774B1 (cs)
GB (1) GB1331884A (cs)
NL (1) NL143806B (cs)
SE (1) SE344164B (cs)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911944A (en) * 1973-04-05 1975-10-14 Fukuba Future Research Apparatus for housing hose of suction cleaner
US4509383A (en) * 1982-12-01 1985-04-09 Championship Electronics (Usa) Inc. Joystick controller
US4895336A (en) * 1987-05-20 1990-01-23 Lieberman Richard G Improved power tool
US4955669A (en) * 1988-05-20 1990-09-11 Aktiebolaget Electrolux Wheel bearing arrangement for suction cleaner
US5222786A (en) * 1992-01-10 1993-06-29 Royal Appliance Mfg. Co. Wheel construction for vacuum cleaner
US5224961A (en) * 1992-05-29 1993-07-06 Liu Kun Hei Baby carriage wheel mounting device
US5255768A (en) * 1991-09-26 1993-10-26 Rexair, Inc. Cord winder apparatus for a vacuum cleaner system
US5797661A (en) * 1994-07-14 1998-08-25 Daewoo Electronics Co., Ltd. Wheel of a vacuum cleaner
US6339861B1 (en) 2001-01-24 2002-01-22 Vicki L. Snyder Vacuum cleaner power cord system
US20040262443A1 (en) * 2001-06-29 2004-12-30 Bsh Bosch Und Siemens Hausgerate Gmbh Device for storing a cable
US20110000037A1 (en) * 2009-07-01 2011-01-06 Racine Industries, Inc. Combination of Carpet-Cleaning Machine and Platform for Transporting the Machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101618265B1 (ko) 2009-06-25 2016-05-04 삼성전자 주식회사 진공청소기

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2112776A (en) * 1936-01-07 1938-03-29 Julian W Harris Electric cable winding and reeling device
US2949251A (en) * 1958-04-09 1960-08-16 Whirlpool Co Cord reel
US3456280A (en) * 1967-10-24 1969-07-22 Electrolux Corp Vacuum cleaner with cordwinder,wire harness,and electrical terminal board
US3591888A (en) * 1969-12-22 1971-07-13 Matsushita Electric Ind Co Ltd Electrically operated vacuum cleaner equipped with automatic filter-cleaning means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2112776A (en) * 1936-01-07 1938-03-29 Julian W Harris Electric cable winding and reeling device
US2949251A (en) * 1958-04-09 1960-08-16 Whirlpool Co Cord reel
US3456280A (en) * 1967-10-24 1969-07-22 Electrolux Corp Vacuum cleaner with cordwinder,wire harness,and electrical terminal board
US3591888A (en) * 1969-12-22 1971-07-13 Matsushita Electric Ind Co Ltd Electrically operated vacuum cleaner equipped with automatic filter-cleaning means

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911944A (en) * 1973-04-05 1975-10-14 Fukuba Future Research Apparatus for housing hose of suction cleaner
US4509383A (en) * 1982-12-01 1985-04-09 Championship Electronics (Usa) Inc. Joystick controller
US4895336A (en) * 1987-05-20 1990-01-23 Lieberman Richard G Improved power tool
US4955669A (en) * 1988-05-20 1990-09-11 Aktiebolaget Electrolux Wheel bearing arrangement for suction cleaner
US5255768A (en) * 1991-09-26 1993-10-26 Rexair, Inc. Cord winder apparatus for a vacuum cleaner system
US5222786A (en) * 1992-01-10 1993-06-29 Royal Appliance Mfg. Co. Wheel construction for vacuum cleaner
US5224961A (en) * 1992-05-29 1993-07-06 Liu Kun Hei Baby carriage wheel mounting device
US5797661A (en) * 1994-07-14 1998-08-25 Daewoo Electronics Co., Ltd. Wheel of a vacuum cleaner
DE19524531B4 (de) * 1994-07-14 2006-11-16 Daewoo Electronics Corp. Rad für einen Staubsauger
US6339861B1 (en) 2001-01-24 2002-01-22 Vicki L. Snyder Vacuum cleaner power cord system
US20040262443A1 (en) * 2001-06-29 2004-12-30 Bsh Bosch Und Siemens Hausgerate Gmbh Device for storing a cable
US7108217B2 (en) * 2001-06-29 2006-09-19 BSH Bosch und Siemens Hausgeräte GmbH Device for storing a cable
US20110000037A1 (en) * 2009-07-01 2011-01-06 Racine Industries, Inc. Combination of Carpet-Cleaning Machine and Platform for Transporting the Machine
US8607411B2 (en) 2009-07-01 2013-12-17 Racine Industries, Inc. Combination of carpet-cleaning machine and platform for transporting the machine

Also Published As

Publication number Publication date
GB1331884A (en) 1973-09-26
NL143806B (nl) 1974-11-15
FR2137774A1 (cs) 1972-12-29
FR2137774B1 (cs) 1974-07-26
NL7205713A (cs) 1972-11-14
DE2222644A1 (de) 1973-02-08
JPS567692B1 (cs) 1981-02-19
CA967132A (en) 1975-05-06
SE344164B (cs) 1972-04-04

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