EP0286203A1 - Aspirateur - Google Patents

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Publication number
EP0286203A1
EP0286203A1 EP88300779A EP88300779A EP0286203A1 EP 0286203 A1 EP0286203 A1 EP 0286203A1 EP 88300779 A EP88300779 A EP 88300779A EP 88300779 A EP88300779 A EP 88300779A EP 0286203 A1 EP0286203 A1 EP 0286203A1
Authority
EP
European Patent Office
Prior art keywords
frame
vacuum cleaner
ramp
shaft
locking
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Withdrawn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
EP88300779A
Other languages
German (de)
English (en)
Inventor
Richard B. Kosten
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.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
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 Black and Decker Inc filed Critical Black and Decker Inc
Publication of EP0286203A1 publication Critical patent/EP0286203A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • A47L9/322—Handles for hand-supported suction cleaners

Definitions

  • the present invention relates to housewares, and more particularly to vacuum cleaners.
  • Vacuum cleaners are almost indispensable house­ware appliances for household cleaning. Such cleaners are most commonly powered by AC power from an external source. Generally, they consist of a fan or blower operative to produce a partial vacuum at an intake. Air sucked in by the partial vacuum passes through a filter bag whereby dirt particles are removed from the air stream. The filtered air is returned to the environment.
  • a relatively new class of vacuum cleaner solves the problems of size, weight and power availability.
  • Such a new class disclosed in U.S. Patent No. 4,209,875, the disclosure of which is incorporated herein by reference, is exemplified by a cordless, hand-held, vacuum cleaner sold under the trademark Dust Buster by the Black and Decker Corporation.
  • the cordless condition is achieved by an internal re­chargeable battery in the vacuum cleaner capable of being recharged between uses.
  • Hand-held vacuum cleaners cannot be used on certain surfaces such as, for example, floors without requiring the user to stoop over. Consequently, a vacuum cleaner adapted for cleaning a floor without stooping appears to extend the advantages of cordless vacuuming.
  • a vacuum cleaner characterized by a frame, a power unit mounted on the frame for providing a suction, a dust bowl sealably connected to the power unit for application of said suction inside said dust bowl, means communicating with said dust bowl for applying said suction from said dust bowl to a surface to be vacuumed, a handle shaft telescopically con­nected to said frame, and resilient means between said frame and said handle shaft for taking up any clearan­ces therebetween.
  • said resilient means comprises one or more resilient pads, such as resilient vibration snubbers.
  • the handle shaft is telescopically mounted to slide inside the frame which may comprise an elongate hollow member.
  • a vacuum cleaner having a telescoping handle and a plurality of resilient pads for inhibit­ing vibration and motion of the handle with respect to the remainder of the vacuum cleaner. All elements of the vacuum cleaner are mounted on a single frame.
  • a power unit includes two halves which are mounted on the frame from opposite sides.
  • a socket at a lower end of the frame receives the lower end of a substan­ tially rigid dust bowl.
  • the upper end of the dust bowl includes a gasket maintained in face-sealing contact with a lower surface of the power unit.
  • a latch assembly in the frame includes a locking dog urged into locking entry in one of two openings in the telescoping shaft.
  • a pair of ramp teeth enter corresponding limit ramps when an attempt is made to extend the handle beyond its normal extension. This prevents further extension but mating ramp surfaces permit retraction to one of the normal locking positions.
  • a vacuum cleaner comprising: a frame, a power unit mounted on the frame, a dust bowl sealable to the power unit, means on the frame for applying a suction from the dust bowl to a surface, a telescoping shaft, means for permitting the telescop­ing shaft to telescope to at least first and second positions in the frame, and resilient means between the frame and the telescoping shaft for taking up clearances therebetween.
  • a latch for a telescoping shaft in a vacuum cleaner comprising: first and second locking nooks in the telescoping shaft, a latch assembly, the latch assembly including a locking dog fittable into either of the first and second locking nooks for locking the telescoping shaft into one of first and second positions, at least one ramp tooth on the latch assembly, at least one limit ramp in the shaft, the at least one limit ramp being disposed in a position related to the second locking nook reachable by the at least one ramp tooth when the telescoping shaft is extended beyond its maximum extension, the at least one limit ramp including first means cooperating with the at least one ramp tooth for preventing extension of the telescoping shaft more than a predetermined amount beyond the maximum extension, and the at least one limit ramp and the at least one ramp tooth including second means for permitting extension of the shaft to be reduced from the predetermined amount beyond the maximum extension to the maximum extension.
  • a vacuum cleaner comprising: a frame, a power unit at a first end of the frame, a socket at a second end of the frame, a swivelling floor tool swivellably affixed to the socket, a substantially rigid dust bowl, means at a first end of the dust bowl for producing a first substantially air-­tight seal with the socket, means at a second end of the dust bowl for providing a second substantially air-tight seal with the power unit, and the socket and the swivelling floor tool including means for provid­ing a substantially air-tight passage for air between the socket and a vacuum port in the swivelling floor tool, whereby a vacuum created in the power unit is communicated to a surface adjacent the vacuum port and the surface is cleaned.
  • FIG. 1 there is shown, generally at 10, a vacuum cleaner according to an embodiment of the invention.
  • a power unit 12 containing a conventional electric motor and fan (not shown) draws air through a dust bowl 14 operatively connected at its lower end to a swivelling floor tool 16. Air exits power unit 12 through a plurality of louvers 18 in power unit 12 after being filtered in a conventional filter element in dust bowl 14.
  • An electric switch 20 controls the application of electric power to power unit 12.
  • a telescoping shaft 22 having a hand grip portion 24 at an extremity thereof, supports and guides vacuum cleaner 10 with a lower surface of swivelling floor tool 16 in contact with a floor (not shown).
  • telescoping shaft 22 is provided with means for permitting it to telescope between a minimum to a maximum length whereby compactness for storage is provided as well as convenient length for use in cleaning a floor without stooping.
  • An upper end 30 of dust bowl 14 is held in face-to-face abutment with a lower face 32 of power unit 12.
  • a latch 34 ⁇ ensures that, once dust bowl 14 is installed in the position shown, it remains in such position.
  • a frame 34 provides the principal support for all elements of vacuum cleaner 10.
  • Socket 26 is seen to extend at right angles from frame 34.
  • a cavity 36 in socket 26 permits insertion of a mating part 38 extending forward from forward end 28.
  • a curved surface 40 in socket 36 supports a sealing pad 42 surrounding an air duct 44 which passes into a generally cylindrical swivel member 46.
  • a curved forward surface 48 on mating part 38 is shaped to seat in a sealing manner against sealing pad 42.
  • upper end 30 and lower face 32 are disposed at equal angles with respect to a longitudinal axis of frame 34.
  • a gasket 40, surrounding a filter element 52 in a downstream end of dust bowl 14 is moved into sealing engagement with lower face 32 to provide a closed sealing figure on lower face 32, whereby a sealed air path is created between power unit 12 and air duct 44.
  • a latch button 54 protrudes through a side of a channel 56 at the rear of power unit 12.
  • a pair of support openings 58 (only one of which is shown, the other is disposed in a symmetrical location on the hidden side of power unit 12) provide means for entry of a mating pair of support horns 60 (only the nearer of which is shown) of a support assembly 62.
  • Support assembly 62 may include means for positioning an electrical connector 64 enterable into support opening 58 for providing charging power to batteries internal to power unit 12.
  • a connector assembly (not shown) within support opening 58 cooperates with electrical connector 64 to disconnect the internal motor in power unit 12 when vacuum cleaner 10 is mounted for support and charging on support assembly 62.
  • Swivelling floor tool 16 includes a floor plate 66 and a cover plate 68 mateable together to sealably encircle cylindrical swivel member 46.
  • Cylindrical swivel member 46 has cylindrical hubs 72 and an outer cylindrical surface 70 centrally disposed at each end thereof (only the outer cylindrical surface 70 at the near end of the member 46 is shown).
  • Cover plate 68 includes a semi-cylindrical sealing surface 74 shaped to seal against an upper portion of outer cylindrical surface 70.
  • a semi-circular guide 76 at each end of semi-cylindrical sealing surface 74 receives a respective cylindrical hub 72.
  • a part-cylindrical sealing surface 78 on floor plate 66 is shaped to seal against a lower portion of outer cylindrical surface 70.
  • a semi-circular guide 80 at each end of part-­cylindrical sealing surface 78 forms, with its complementary semi-circular guide 76 on cover plate 68, a complete circle surrounding its respective cylindrical hub 72, thereby providing support and guidance thereof
  • An air channel 82 in cover plate 68 extends forward from semi-cylindrical sealing surface 74 toward a front of cover plate 68.
  • a vacuum port 84 in floor plate 66 is disposed below air channel 82.
  • the perimeters of floor plate 66 and cover plate 68 are sealed to each other using any convenient means (not shown), whereby a complete sealed air path is provided between air duct 44 and vacuum port 84.
  • the cylindri­cal shape of outer cylindrical surface 70, and the complementary shapes of semi-cylindrical sealing surface 74 and part-cylindrical sealing surface 78 permit swivelling floor tool 16 to swivel about an axis of cylindrical swivel member 46.
  • the sealing angular extents of semi-cylindrical sealing surface 74 and part-cylindrical sealing surface 78 are great enough to provide an air seal over the maximum swivel angle permitted by mechanical limits.
  • a plurality of conventional rollers 86 maybe disposed in a bottom surface of floor plate 66 to provide rolling support for vacuum cleaner 10.
  • a brush not shown, may be disposed in the bottom surface of floor plate 66 to aid in loosening dirt.
  • frame 34 is seen to extend, unbroken, from socket 26 to an upper end 88. Telescoping shaft 22 is disposed to slide in and out of upper end 88.
  • frame 34 provides the backbone, and provides mounting, for the entire vacuum cleaner 10.
  • a plurality of attachment loops 90, 92 and 94 are affixed to frame 34 transversely centered in the region thereof occupied by power unit 12, when assembled. Each attachment loop includes a hole 96 therethrough engageable by assembly screws (not shown) employed to assemble power unit 12 thereto.
  • frame 34 is seen to be formed of complementary halves 97 and 98 mated together at a central mating line 100.
  • attachment loops 90 (not shown in Fig. 4), 92 and 94 are each made up of a complementary facing pair with a respective hole 96 passing through and aligned with each other.
  • half 97 includes a groove 102 passing therethrough and terminating at mating line 100.
  • a similar groove 104 is disposed in half 98 and termina­ting at mating line 100 aligned with groove 102. It will be noted that groove 102 and groove 104 pass through their respective portions of attachment loop 94.
  • a resilient vibration snubber 106 is disposed in grooves 102 and 104, passing through attachment loop 94. Resilient vibration snubber 106 is urged into resilient contact with a top surface of telescoping shaft 22 whereby vibration and motion of telescoping shaft 22 normal to its top surface is reduced substan­tially.
  • a second resilient vibration snubber 108 is disposed in grooves 110 and 112 passing under attach­ment loop 92 and providing a second position along telescoping shaft 22 at which vibration and motion of telescoping shaft 22 normal to its top surface is prevented.
  • vibration and motion of telescoping shaft 22 normal to its side surface is prevented by one or more pockets 114 within half 97 facing a side surface of telescoping shaft 22.
  • a resilient vibration snubber 116 is compressed into resiliently urged contact with the side surface of telescoping shaft 22 when power unit 12 is assembled onto frame 34.
  • two pockets 114, each containing a respective resilient vibration snubber 116, are employed. In the foregoing manner, smooth, vibration-free retention of telescop­ing shaft 22 is provided.
  • Fig. 5 shows frame 34 as a relatively thick cross section of a resin material.
  • Conventional engineering design would employ suitable cavities and webs to reduce the material used and the consequent weight of the structure. Since such conventional design features are well known to those skilled in the art, and do not comprise an inventive portion of the present dis­closure, they are omitted herefrom for simplicity.
  • telescoping shaft 22 includes a locking nook 117 at an end nearer handle 24 and a similar locking nook 119 near an inner end 121 thereof.
  • a pair of transversely spaced-apart limit ramps 125 and 127 are disposed on telescoping shaft 22 a predetermined distance away from locking nook 119.
  • telescoping shaft 22 is shown locked in its fully retracted position.
  • a latch cavity 118 in half 98 surrounds an opening 120.
  • An aligned opening 122 in channel 56 permits latch button 54, which forms part of a latch assembly 123, to pass therethrough to an outside position where it is accessible to a user.
  • a pivot 124 is connected to latch button 54 by an integral hinge 126.
  • a locking dog 128 is connected rigidly to pivot 124 by a limit plate 132. Limit plate 132 contacts a surface of latch cavity 118 remote from pivot 124 to limit a maximum amount by which latch button 54 is permitted to protrude through openings 120 and 122.
  • a double ramp limit lock 134 at an end of opening 120 remote from pivot 124, prevents withdrawing telescoping shaft 22 beyond a predetermined distance.
  • Pivot 124 is supported near a surface of telescoping shaft 22 by a pair of fulcrums 135 (only the fulcrum 135 on the far side of latch assembly 123 is shown).
  • Locking dog 128 is urged through locking nook 117 by the resilient urging of integral hinge 126 to lock telescoping shaft 22 in its fully retracted position shown.
  • bearing surface 140 is similarly urged into contact with the adjacent surface of telescoping shaft 22.
  • pivot 124 When latch button 54 is pressed inward, pivot 124, contacting the adjacent surface of telescoping shaft 22, rotates to permit outward motion of locking dog 128, whereby locking dog 128 is moved outward free of locking nook 117 against the resilient urging of integral hinge 126. In this condition, telescoping shaft 22 can be slid outward to an extended position.
  • telescoping shaft 22 is shown in an intermediate, unlocked, position.
  • Locking dog 128 and double ramp limit lock 134 are urged into sliding contact with the adjacent surface of telescop­ing shaft 22 due to the support provided to pivots 124 by their respective fulcrums 135, and the resilience of integral hinge 126.
  • double ramp limit lock 134 includes first and second transversely spaced ramp teeth 136 and 138, each having a bearing surface 140, a locking abutment surface 142 and a sloping ramp surface 144.
  • a center-to-center spacing of ramp teeth 136 and 138 is substantially equal to a center-to-­center spacing of limit ramps 125 and 127, and a transverse dimension of each ramp tooth is such that it will fit into its respective limit ramp.
  • limit ramps 125 and 127 are formed by bending inward a tab 146 into the interior of telescoping shaft 22.
  • Tab 146 provides an angled ramp surface 148 disposed at an angle substantially equal to an angle of ramp surface 144.
  • a longitudinal spacing between locking nook 119 and limit ramps 125 and 127 is such that locking dog 128 may enter, and lock into locking nook 119, before ramp teeth 136 and 138 reach their respective limit ramps 125 and 127.
  • Full extension of telescoping shaft 22 is achieved with such locking. If a user presses latch button 54 and attempts to extend telescoping shaft 22 beyond its full extension, the condition shown in Fig.
  • ramp teeth 136 and 138 enter their respective limit ramps 125 and 127.
  • Locking abutment surfaces 142 on ramp teeth 136 and 138 abut ends 150 of their respective limit ramps 125 and 127 whereby further extension is blocked.
  • vacuum cleaner 10 includes a motor-driven blower 152 normally capable of receiving electric power from a battery 154 through an ON OFF switch 156.
  • a normally closed interlock switch 158 is also connected in series with battery power to motor-driven blower 152.
  • a connector 160 in vacuum cleaner 10 mates with a mating connector 162 in support assembly 62 to provide AC power to vacuum cleaner 10.
  • the AC power is rectified by a diode 164 to provide pulsating DC for charging battery 154.
  • a mechanical interlock, represented by a dashed line 166, between connector 160 and interlock switch 158 opens interlock switch 158 whenever vacuum cleaner 10 is installed on support assembly 62. This prevents motor-driven blower 152 from being operated in its charging and storage position on support assembly 62.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
EP88300779A 1987-04-06 1988-01-29 Aspirateur Withdrawn EP0286203A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3507287A 1987-04-06 1987-04-06
US35072 1993-03-22

Publications (1)

Publication Number Publication Date
EP0286203A1 true EP0286203A1 (fr) 1988-10-12

Family

ID=21880459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88300779A Withdrawn EP0286203A1 (fr) 1987-04-06 1988-01-29 Aspirateur

Country Status (1)

Country Link
EP (1) EP0286203A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444516A2 (fr) * 1990-03-01 1991-09-04 White Consolidated Industries, Inc. Aspirateur
US5398567A (en) * 1993-04-01 1995-03-21 The Hoover Company Trigger lever arrangement
WO1997033510A1 (fr) * 1996-03-11 1997-09-18 Vorwek & Co. Interholding Gmbh Ensemble d'elements telescopiques
GB2324712A (en) * 1997-04-30 1998-11-04 Daewoo Electronics Co Ltd Apparatus for connecting vacuum cleaner brush to wand
EP0928595A1 (fr) * 1997-12-29 1999-07-14 POLTI S.p.A. Appareil de nettoyage
DE29900462U1 (de) * 1999-01-14 2000-03-02 Wap Reinigungssysteme Handgriff für ein verfahrbares Sauggerät
US6052864A (en) * 1998-07-07 2000-04-25 Airtek Industry Corp. Vacuum cleaner with retractable handle
CN111248810A (zh) * 2018-11-30 2020-06-09 Seb公司 用于家用吸尘器的吸入装置以及包括其的家用吸尘器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1422372A (fr) * 1964-11-10 1965-12-24 Paris & Du Rhone Système d'assemblage pour éléments d'appareils ménagers, et notamment pour manches, poignées ou accessoires d'aspirateurs
DE1239140B (de) * 1964-08-01 1967-04-20 Vorwerk & Co Elektrowerke Kg Steckkupplung zweier teleskopartig ineinander-geschobener Rohre, insbesondere fuer die Stielbefestigungen an Haushaltgeraeten, wie Staubsauger, Bohner od. dgl.
FR2025832A1 (fr) * 1968-12-11 1970-09-11 Electrolux Ab
FR2361980A1 (fr) * 1976-08-20 1978-03-17 Vorwerk Co Interholding Manche pour appareil d'entretien des sols

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239140B (de) * 1964-08-01 1967-04-20 Vorwerk & Co Elektrowerke Kg Steckkupplung zweier teleskopartig ineinander-geschobener Rohre, insbesondere fuer die Stielbefestigungen an Haushaltgeraeten, wie Staubsauger, Bohner od. dgl.
FR1422372A (fr) * 1964-11-10 1965-12-24 Paris & Du Rhone Système d'assemblage pour éléments d'appareils ménagers, et notamment pour manches, poignées ou accessoires d'aspirateurs
FR2025832A1 (fr) * 1968-12-11 1970-09-11 Electrolux Ab
FR2361980A1 (fr) * 1976-08-20 1978-03-17 Vorwerk Co Interholding Manche pour appareil d'entretien des sols

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0444516A2 (fr) * 1990-03-01 1991-09-04 White Consolidated Industries, Inc. Aspirateur
EP0444516A3 (en) * 1990-03-01 1992-06-03 White Consolidated Industries, Inc. Stick type vacuum cleaner
US5398567A (en) * 1993-04-01 1995-03-21 The Hoover Company Trigger lever arrangement
WO1997033510A1 (fr) * 1996-03-11 1997-09-18 Vorwek & Co. Interholding Gmbh Ensemble d'elements telescopiques
GB2324712A (en) * 1997-04-30 1998-11-04 Daewoo Electronics Co Ltd Apparatus for connecting vacuum cleaner brush to wand
EP0928595A1 (fr) * 1997-12-29 1999-07-14 POLTI S.p.A. Appareil de nettoyage
US6052864A (en) * 1998-07-07 2000-04-25 Airtek Industry Corp. Vacuum cleaner with retractable handle
DE29900462U1 (de) * 1999-01-14 2000-03-02 Wap Reinigungssysteme Handgriff für ein verfahrbares Sauggerät
CN111248810A (zh) * 2018-11-30 2020-06-09 Seb公司 用于家用吸尘器的吸入装置以及包括其的家用吸尘器

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