US3815258A - Dryer having drum with two different diameters - Google Patents

Dryer having drum with two different diameters Download PDF

Info

Publication number
US3815258A
US3815258A US00310984A US31098472A US3815258A US 3815258 A US3815258 A US 3815258A US 00310984 A US00310984 A US 00310984A US 31098472 A US31098472 A US 31098472A US 3815258 A US3815258 A US 3815258A
Authority
US
United States
Prior art keywords
drum
cabinet
tumbling
cylindrical wall
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
US00310984A
Other languages
English (en)
Inventor
W Beard
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.)
Whirlpool Corp
Original Assignee
Whirlpool 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 Whirlpool Corp filed Critical Whirlpool Corp
Priority to US00310984A priority Critical patent/US3815258A/en
Priority to CA186,358A priority patent/CA1026093A/fr
Priority to AU62849/73A priority patent/AU472000B2/en
Application granted granted Critical
Publication of US3815258A publication Critical patent/US3815258A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 

Definitions

  • a general object of the invention is to provide a clothes drying appliance with a drum having the largest possible drying volume for a given cabinet size.
  • Another object of the invention is to provide a clothes drying appliance with a stepped drum having two drum portions of substantially different diameters to promote an ideal tumbling action of clothes being dried.
  • a feature of the invention is that the stepped drum provides an enlargement of the drumdiameter adjacent a front loading area of the appliance enclosure cabinet, at a location clear of the drive motor positioned in a rear corner of the cabinet.
  • the step feature produces a peripheral speed variation between the two different drum portions, which is aided by a plurality of baffles to provide a greatly improved tumbling action to separate, circulate and spread-out clothing being dried. Accordingly, greater fabric surface area is exposed to the flow of drying air circulating through the drum at a given time and an improvement in drying effl'ciency is obtained compared to single diameter drum dryers of similar drum volume.
  • FIG. 1 I show a clothes drying appliance 10 comprising an enclosure cabinet 12 with a control console 14 thereon, housing a control device 16 for regulating the drying operation.
  • a control knob 18 selectively sets the control device 16 for various drying cycles of 1 operation, as, for example, automatic or timed drying cycles.
  • Theenclosure cabinet 12 comprises horizontal top and bottom panels 20 and 22, re spectively, a pair of vertical side panels 24, and vertical front and rear panels 26 and 28, respectively.
  • An access opening 30 is provided inthe' front panel 26, asdefined by an axially in-turned flange 31, having aclosure door 32 cooperating therewith for loading and unloading the dryer 10.
  • the dryer 10 further includes a' stepped drying container for tumbling clothes, in the form of a revolving drum 34 housed within the cabinet 12 and extending axially from the front panel 26 to a bulkhead 36 spaced forwardly of rear panel 28.
  • the drum 34 includes an open imperforated cylindrical rear portion 38 and an imperforated generally cylindrical front portion 39.
  • Front portion 39 is of a greater diameter than said rear portion 38 and is connected thereto by means of an offset flange 40.
  • Front portion 39 includes a radially inwardextending front closure wall 41 having an access opening 42 therein formed by means of an axially outturned flange 43.
  • the flange 43 provides a forwardly extending bearing annulus which overlies and'is suitably journaled on complemental flange 31 of the cabi net l2. It will be apparent from the foregoing that opening 42 into drum 34 "and opening30 formed in front panel 26 are concentric, providing access into the rotatable drum 34 from outside the cabinet l2.-Drum 34 is supported at the rear by a pair of support rollers 48 (one being illustrated) mounted on bulkhead 36. A raceway on circumferential groove 50, indented in the peripheral wall of rear portion 38 serves as a track for the rollers 48.
  • a motor 52 mounted to bottom panel 22 in a rear corner of cabinet 12, rotatably drives the drum 34 by means of a drive belt 54 extending around the periphery of and in frictional engagement with rear portion 38 and around a motor pulley 56 mounted at one end of motor shaft 58.
  • the other end of motor shaft 58 drives a blower60, arranged to circulate air through the drum 34.
  • Blower 60 is included in a warm air system 62 posi tioned between rear panel 28 and bulkhead 36.
  • Bulkhead 36 serves to enclose the-open-ended rear portion 38of drum 34 and provides a fixed rear wall in which to locate a pair of spaced openings, comprising an air inlet 64 and an air outlet 66.
  • the blower 60 draws moisture-laden air from the interior of drum 34 through outlet 66, through a removable lint screen 68, air duct to the blower 60 and out of the cabinet 12 through exhaust duct 72.
  • Air exhausted from the drum 34 is replaced by ambient airentering the warm air system 62 by way of an intake opening in the rearpanel 28 (not shown), drawn through a fresh air duct 74., passing over heater means 76 and into the drum 34 through inlet 64.
  • the warmth air system 62 thus circulates a stream of warm air through the drum 34, subjecting clothing placed therein to a drying environment to remove moisture from the fabrics while the clothing is tumbed as the drum rotates.
  • the warm air system 62 will operate in the mariner just described, however, the
  • heater means 76 will be rendered inoperative by an appropriate setting of the control device 16.
  • baffles 78 are mounted on the inner surfaces of the drum 34. As shown in FIG. 3, baffles 78 extend axially along the front and rear portions 39, 38 of the drum 34, each 7 being secured at one end by screws 80 directly to the inner cylindrical side wall 82 of a rear portion 38 while the other end is secured by screws 80 to mounting surface 88 of longitudinal rib members 84. Rib members 84 are formed as indentations in the cylindrical side wall 86 of front portion 39, extending radially inward whereby the mounting surfaces 88 are aligned with the cylindrical side wall 82 of the smaller diameter rear portion 38.
  • Rib members 84 also serve as outward radial extensions of baffles 78.
  • rib members 84 may be eliminated and baffles 78 may be shaped so as to include the rib members 84- whereby the baffles can be directly secured to cylindrical side walls 82, 86 and extend along the longitudinal contour of the drums interior.
  • the inner edge of baffles 78 may be stepped or tapered.
  • the offset flange 40 is preferably disposed at a substantial angle so as to minimize any barrier between the two drum portions 38 and 39 which might impede the migration of clothing to the rear of the drum.
  • a clothes drying appliance having in combination:
  • a cabinet a drum rotatably mounted in said cabinet; an access opening in said cabinet providing access to said drum; means to circulate the air through said drum; drive means positioned within said cabinet, remote from said access opening and drivably coupled to said drum and said air circulating means; heating means to heat air being circulated through the drum, said drum having a front wall formed with an access opening therein and through which a batch of materials to be tumbled may be selectively inserted and removed, and an outer peripheral circumferential continuous wall means for said drum comprising a first portion forming a first cylindrical wall extending axially rearwardly away from said front wall and being spaced radially concentrically outwardly from the rotational axis of the drum at a first spacing dimension,
  • a container for tumbling clothes comprising:
  • said drum having a rear portion adapted to be disposed closely adjacent a bulkhead of an enclosure cabinet and through which temperature conditioned air is circulated through the drum, said drum having a front wall formed with an access opening therein and through which a batch of materials to be tumbled may be selectively inserted and removed, and an outer peripheral circumferential continuous wall means for said drum comprising a first portion forming a first cylindrical wall extending axially rearwardly away from said front wall and being spaced radially concentrically outwardly from the rotational axis of the drum at a first spacing dimension, thereby to form radially inwardly thereof a first tumbling zone of a first given cross-sectional area, and comprising a second portion forming a second cylindrical wall extending axially forwardly away from said rear portion and being spaced radially concentrically outwardly of the rotational axis of the drum at a second spacing dimension different from said first spacing dimension,
  • said first generally cylindrical portion has at and a drive motor in said cabinet adjacent said secleast one longitudinal indented rib member for supportend wall portion and being drivingly connected to ing a baffle, said rib member extending radially insaid drum by a belt means engaging said second cywardly to align with said smaller diameter of said sec- 10 lindrical wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
US00310984A 1972-11-30 1972-11-30 Dryer having drum with two different diameters Expired - Lifetime US3815258A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00310984A US3815258A (en) 1972-11-30 1972-11-30 Dryer having drum with two different diameters
CA186,358A CA1026093A (fr) 1972-11-30 1973-11-21 Secheuse a tambour etage
AU62849/73A AU472000B2 (en) 1972-11-30 1973-11-23 Dryer having drum with two different diameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00310984A US3815258A (en) 1972-11-30 1972-11-30 Dryer having drum with two different diameters

Publications (1)

Publication Number Publication Date
US3815258A true US3815258A (en) 1974-06-11

Family

ID=23204884

Family Applications (1)

Application Number Title Priority Date Filing Date
US00310984A Expired - Lifetime US3815258A (en) 1972-11-30 1972-11-30 Dryer having drum with two different diameters

Country Status (3)

Country Link
US (1) US3815258A (fr)
AU (1) AU472000B2 (fr)
CA (1) CA1026093A (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946500A (en) * 1973-06-14 1976-03-30 U.S. Philips Corporation Tumbler drum for a domestic appliance
US5495681A (en) * 1995-05-24 1996-03-05 Paradis; Andr´E Pivotable panel for clothes dryer drum
US5555645A (en) * 1993-03-31 1996-09-17 White Consolidated Industries, Inc. Reversing clothes dryer and method therefor
US20050102852A1 (en) * 2001-05-10 2005-05-19 Benny Mizhari Clothes dryer
US6971189B1 (en) 2004-12-20 2005-12-06 Anibas Kevin J Variable volume clothes dryer
US20060005585A1 (en) * 2003-06-05 2006-01-12 Lee Soon J Drum for washer and dryer
US20060016229A1 (en) * 2004-07-22 2006-01-26 Candy S.P.A. Basket for washing machine, washer-drier, drier, and the like
US7194824B2 (en) * 2003-11-17 2007-03-27 Samsung Electronics Co., Ltd. Clothes drying apparatus
US20070256322A1 (en) * 2006-04-27 2007-11-08 Daewoo Electronics Corporation Dryer having heater-installed suction duct
US20070266587A1 (en) * 2006-05-17 2007-11-22 Herbert Kannegiesser Gmbh Method and apparatus for treating, preferably washing, spinning and/or drying, laundry
US20080006065A1 (en) * 2006-07-06 2008-01-10 Silvano Fumagalli Basket for washing machine, washer-dryer, dryer and the like
US20080110042A1 (en) * 2004-11-19 2008-05-15 BSH Bosch und Siemens Hausgeräte GmbH ü Tumble-Dryer
US20090205220A1 (en) * 2008-02-20 2009-08-20 Dewald Iii Charles Robert Dryer and adapter having ducting system
US7627960B2 (en) * 2003-06-30 2009-12-08 General Electric Company Clothes dryer drum projections
US20100101282A1 (en) * 2007-01-10 2010-04-29 Seong Hae Jeong Pedestal washing machine
US7765716B2 (en) * 2007-11-05 2010-08-03 Daewoo Electronics Corporation Dryer having intake duct with heater integrated therein
US7836607B2 (en) * 2004-06-05 2010-11-23 Lg Electronics Inc. Drum of laundry dryer
US20110072679A1 (en) * 2009-09-29 2011-03-31 Sungmin Kim Dryer
US7992322B2 (en) * 2007-11-05 2011-08-09 Daewoo Electronics Corporation Dryer having intake duct with heater integrated therein
US8042282B2 (en) * 2006-02-27 2011-10-25 Lg Electronics Inc. Drum for clothes dryer
US20110258872A1 (en) * 2009-09-29 2011-10-27 Lg Electronics Inc. Dryer
US8695228B2 (en) * 2004-11-30 2014-04-15 Lg Electronics Inc. Composite washing system
US9316442B2 (en) 2009-09-29 2016-04-19 Lg Electronics Inc. Dryer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US857161A (en) * 1907-02-15 1907-06-18 William M Cummer Mechanical drier.
US3029525A (en) * 1959-09-04 1962-04-17 Gen Electric Clothes drying machine
US3039285A (en) * 1960-01-27 1962-06-19 Lovell Mfg Co Imperforate drum combination clothes washer and dryer
US3309783A (en) * 1964-03-09 1967-03-21 Gen Electric Clothes drying machine having reversing drum drive means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US857161A (en) * 1907-02-15 1907-06-18 William M Cummer Mechanical drier.
US3029525A (en) * 1959-09-04 1962-04-17 Gen Electric Clothes drying machine
US3039285A (en) * 1960-01-27 1962-06-19 Lovell Mfg Co Imperforate drum combination clothes washer and dryer
US3309783A (en) * 1964-03-09 1967-03-21 Gen Electric Clothes drying machine having reversing drum drive means

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946500A (en) * 1973-06-14 1976-03-30 U.S. Philips Corporation Tumbler drum for a domestic appliance
US5555645A (en) * 1993-03-31 1996-09-17 White Consolidated Industries, Inc. Reversing clothes dryer and method therefor
US5495681A (en) * 1995-05-24 1996-03-05 Paradis; Andr´E Pivotable panel for clothes dryer drum
US20050102852A1 (en) * 2001-05-10 2005-05-19 Benny Mizhari Clothes dryer
US20110192886A1 (en) * 2003-06-05 2011-08-11 Soon Jo Lee Drum for washer and dryer
US20060005585A1 (en) * 2003-06-05 2006-01-12 Lee Soon J Drum for washer and dryer
US8083122B2 (en) * 2003-06-05 2011-12-27 Lg Electronics Inc. Drum for washer and dryer
US8365437B2 (en) 2003-06-05 2013-02-05 Lg Electronics Inc. Drum for washer and dryer
US7627960B2 (en) * 2003-06-30 2009-12-08 General Electric Company Clothes dryer drum projections
US7194824B2 (en) * 2003-11-17 2007-03-27 Samsung Electronics Co., Ltd. Clothes drying apparatus
US7836607B2 (en) * 2004-06-05 2010-11-23 Lg Electronics Inc. Drum of laundry dryer
US7555924B2 (en) * 2004-07-22 2009-07-07 Candy S.P.A. Basket for washing machine, washer-drier, drier, and the like
EP1619285B2 (fr) † 2004-07-22 2018-07-18 Candy S.p.A. Tambour pour machine à laver, sèche-linge, ou équivalent
US20060016229A1 (en) * 2004-07-22 2006-01-26 Candy S.P.A. Basket for washing machine, washer-drier, drier, and the like
US20080110042A1 (en) * 2004-11-19 2008-05-15 BSH Bosch und Siemens Hausgeräte GmbH ü Tumble-Dryer
US8695228B2 (en) * 2004-11-30 2014-04-15 Lg Electronics Inc. Composite washing system
US6971189B1 (en) 2004-12-20 2005-12-06 Anibas Kevin J Variable volume clothes dryer
US8042282B2 (en) * 2006-02-27 2011-10-25 Lg Electronics Inc. Drum for clothes dryer
US20070256322A1 (en) * 2006-04-27 2007-11-08 Daewoo Electronics Corporation Dryer having heater-installed suction duct
US20070266587A1 (en) * 2006-05-17 2007-11-22 Herbert Kannegiesser Gmbh Method and apparatus for treating, preferably washing, spinning and/or drying, laundry
US7752872B2 (en) * 2006-07-06 2010-07-13 Candy S.P.A. Basket for washing machine, washer-dryer, dryer and the like
US20080006065A1 (en) * 2006-07-06 2008-01-10 Silvano Fumagalli Basket for washing machine, washer-dryer, dryer and the like
US8635890B2 (en) * 2007-01-10 2014-01-28 Lg Electronics Inc. Pedestal washing machine
US20100101282A1 (en) * 2007-01-10 2010-04-29 Seong Hae Jeong Pedestal washing machine
US7765716B2 (en) * 2007-11-05 2010-08-03 Daewoo Electronics Corporation Dryer having intake duct with heater integrated therein
US7992322B2 (en) * 2007-11-05 2011-08-09 Daewoo Electronics Corporation Dryer having intake duct with heater integrated therein
US20090205220A1 (en) * 2008-02-20 2009-08-20 Dewald Iii Charles Robert Dryer and adapter having ducting system
US20110258872A1 (en) * 2009-09-29 2011-10-27 Lg Electronics Inc. Dryer
US8615898B2 (en) 2009-09-29 2013-12-31 Lg Electronics Inc. Dryer
US8627580B2 (en) * 2009-09-29 2014-01-14 Lg Electronics Inc. Dryer
US20110072679A1 (en) * 2009-09-29 2011-03-31 Sungmin Kim Dryer
US9316442B2 (en) 2009-09-29 2016-04-19 Lg Electronics Inc. Dryer

Also Published As

Publication number Publication date
AU6284973A (en) 1975-05-29
AU472000B2 (en) 1976-05-13
CA1026093A (fr) 1978-02-14

Similar Documents

Publication Publication Date Title
US3840998A (en) Removable clothers basket for dryer
US3316659A (en) Delicate goods tray for dryers
US3555701A (en) Laundry apparatus
US3696521A (en) Laundry dryer
US5463821A (en) Method and apparatus for operating a microwave dryer
US2589284A (en) Drier
US3402477A (en) Dual compartment laundry apparatus
US2434886A (en) Rotary drum clothes drier having air circulating means and a lamp heater
US2372790A (en) Drier
US3000108A (en) Coaxial flow drier
US2608769A (en) Drier
US3309783A (en) Clothes drying machine having reversing drum drive means
US2521712A (en) Tumbler type hot-air drier having a casing bulkhead
US2752694A (en) Domestic appliance
US2798307A (en) Revolving drum for a clothes drier
US3039285A (en) Imperforate drum combination clothes washer and dryer
US2830385A (en) Clothes dryer
US6006445A (en) Washer/dryer combination
US3364588A (en) Clothes treating machine with automatic unloading means
US4510361A (en) Horizontal axis tumbler type microwave drying mechanism
US2587646A (en) Drier
US2798304A (en) Mechanical control means for a clothes drier cylinder
US3399464A (en) Clothes dryer
US4069596A (en) Air seal arrangement in a clothes dryer
US3570138A (en) Clothes dryers