US3722106A - Clothes drier - Google Patents

Clothes drier Download PDF

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Publication number
US3722106A
US3722106A US00199123A US3722106DA US3722106A US 3722106 A US3722106 A US 3722106A US 00199123 A US00199123 A US 00199123A US 3722106D A US3722106D A US 3722106DA US 3722106 A US3722106 A US 3722106A
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US
United States
Prior art keywords
rotary drum
holding frame
recessed portion
cabinet
filter
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
US00199123A
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English (en)
Inventor
K Takeyama
M Hamamoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of US3722106A publication Critical patent/US3722106A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the object of the present invention is to provide filter holding frame mounting means in clothes driers, by which a filter holding frame is mounted on a rotary drum at the peripheral edge thereof.
  • the filter holding frame is mounted on the rotary drum at the peripheral edge thereof, as stated above. Therefore, there can be obtained the merit that a sufficiently large lint area can be substantially secured and the lint efficiency can be enhanced.
  • the filter holding frame mounting structure is very simple and has a merit of reducing the production cost of the drier.
  • the filter holding frame mounting hole is not required to be formed in the rotary drum solely for the purpose of mounting the filter holding frame but is formed as a result of forming the above-mentioned flange portion which provides rotary drum bearing means according to the recent trend of this type of clothes drier, and it will be understood that the present invention is advantageous also in this respect in substantially reducing the production cost of the drier.
  • FIG. 2a- is a front elevational view of the filter holding frame
  • FIG. 2b is a vertical sectional view of the filter holding frame
  • FIG. 3a is a front elevational view of the filter mounting portion of the rotary drum
  • FIG. 3b is a vertical sectional view of the filter holding frame as mounted on the rotary drum;
  • FIG. 4 is a perspective view of the filter
  • FIG. 5 is a sectional view showing in an enlarged scale the portion A of FIG. 2b.
  • reference numeral 1 designates an appearance cabinet of the clothes drier. Inside the cabinet 1 is mounted a rotary or drier drum 2 which is rotatably supported therein with its axis of rotation extending horizontally. On the bottom wall of the cabinet 1 is mounted by means of a bracket 5 a capacitor type motor 3 to drive the rotary drum 2 and an exhaust fan 4.
  • the cabinet 1 is formed in the front panel thereof with a clothes inlet opening 6 concentric with a clothes inlet opening 7 of the rotary drum 2, and said inlet opening 6 is closed by an openable door 8 provided on the cabinet 1.
  • the rotary drum 2 has a number of apertures 9 formed in the front wall thereof.
  • a heater mounting plate 10 is provided covering the front face of the rotary drum 2 and an electric heater 11 is mounted on said heater mounting plate 10 through insulators 12.
  • the heating mounting plate 10 is annular in shape and has a flange portion 13 formed at the inner peripheral edge thereof to rotatably support the front portion of the rotary drum 2 through the intermediary of a felt 14 consisting of a Teflon sheet or the like having a small coefficient of friction.
  • a flat endless belt 15 is engaged around a driving pulley 16 of the motor 3 and the outer peripheral surface of the rotary drum 2 to transmit the driving force of said motor to said rotary drum to drive the latter.
  • the flat belt 15 is held taut by means of an idler pulley 17.
  • blower means 22 generally designates blower means comprising a blower housing 22 and the exhaust fan 4 disposed therein.
  • This blower means 22 is disposed reawardly of the rotary drum 2 between the back face of said rotary drum and the back panel of the cabinet 1, and has a flange portion 23 at the inner edge thereof to rotatably support the back portion of said rotary drum through the intermediary of a felt 24 consisting of a Teflon sheet or the like having a small coefficient of friction.
  • baffle plates 25 On the inner surface of the rotary drum 2 are provided a plurality of baffle plates 25 each being substantially semicylindrical in shape and molded of a plastic material such as polypropylene. These baffle plates 25 help the clothes in the rotary dmm 2 fall back to the bottom and serve to stir the clothes during rotation of said rotary drum.
  • Each bafi'le plate 25 is hollow and has a number of apertures 26 formed in the rear portion thereof as shown in FIG. 1.
  • the cabinet 1 has an air passage opening 27 formed at the rear lower portion thereof and is provided with universal wheels 28 at the bottom thereof.
  • the rotary drum 2 has air inlet openings 29 formed in the front wall thereof each in communication with the inner hollow of the corresponding baffle plate 25.
  • the blower means 22 is formed with an exhaust opening 30.
  • the central portion of the back wall of the rotary drum 2 is recessed outwardly in a circular shape as at 31 to provide for mounting of filter means 32 therein, and a number of air outlet apertures 33 are formed in this portion.
  • On the inner peripheral surface of the recessed portion 31 are formed a plurality of inwardly projecting cut-bent lugs 34, by which a filter is secured in position.
  • the filter means 32 comprises a holding frame 35 molded of a synthetic resin material, such as polypropylene or polyester, and has openings 36 of a relatively large area formed therein.
  • This holding frame 35 is molded in a bowl-like shape and has a knob 37 formed at the center thereof, and a filter 38 is fitted in said holding frame 35 and secured therein with its outer peripheral edge in engagement with the inner peripheral wall of said holding frame.
  • This filter 38 is composed of a ringshaped frame 38' and a nylon screen 38" of relatively fine mesh stretched over the interior of said frame 38.
  • the holding frame 35 has a plurality of projections 39 formed on the outer peripheral edge thereof in spaced relation to each other and each of said projections 39 is chamfered obliquely at an angle B on the side closer to the recessed portion 31 as shown in FIG. so as to facilitate the interlocking engagement of said projection with the .corresponding cut-bent lug 34 formed on the inner peripheral wall of said recessed portion 31.
  • the inner peripheral surface 35' of the filter holding frame 35 is inclined inwardly outwardly at an angle a and the frame 38' of the filter 38 is held resiliently by the larger inner diameter portion of said inner peripheral surface of the filter holding frame as best shown in FIG. 5.
  • the filter means 32 constructed as described above is mounted on the rotary drum 2 in the following manner:
  • the filter 38 is snap-fitted in the inner peripheral wall 35' of the filter holding frame 35 at first and then the filter holding frame 35 with the filter 38 thus fitted therein is snap-fitted in the recessed portion 31 of the rotary drum 2 by taking advantage of the resiliency of said folding frame and secured therein by the interlocking engagement of the projections 39 formed thereon with the cut-bent lugs 34 formed on the inner peripheral surface of said recessed portion 31,,as
  • FIG. 3b When it is desired to demount the filter means 32 from the rotary drum 2, the knob 37 on the filter means is pulled in the direction of the arrow B in FIG. 1, whereby the outer peripheral edge of the holding frame 35 is deflected inwardly and the filter means 32 can be simply demounted.
  • the projections 39 are provided at a plu rality of locations on the outer peripheral surface of the holding frame 35, it is to be understood that these projections may, for example, be provided continuously along the entire peripheral surface of the holding frame, and in this case there can be obtained the merit that the mounting of the filter means is not restricted by the positional relation between the holding frame 35 and the cut-bent lugs 34 of the recessed portion 31.
  • a clothes drier comprising an appearance cabinet; a rotary drum rotatably mounted within said cabinet with its axis of rotation extending horizontally; a motor for. driving said rotary drum and blower means disposed reawardly of said rotary drum between said rotary drum and said cabinet; said cabinet having a clothes inlet opening formed in the front panel thereof; said rotary drum having a clothes inlet opening formed in the front wall thereof concentrically with the clothes inlet opening of said cabinet, a recessed portion formed on the back wall thereof for mounting filter means, a
  • said filter means comprising in combination a holding frame molded of a synthetic resin material and having formed therein openings of relatively large area, and a filter of relatively fine mesh fitted in the inner peripheral wall of said holding frame; said holding frame being formed on the outer peripheral wall thereof with projections for interlocking engagement with the projections of said recessed portion; and said blower means comprising a blower housing and an exhaust fan disposed in said blower housing.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
US00199123A 1970-11-25 1971-11-16 Clothes drier Expired - Lifetime US3722106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1970117384U JPS4934132Y1 (enrdf_load_stackoverflow) 1970-11-25 1970-11-25

Publications (1)

Publication Number Publication Date
US3722106A true US3722106A (en) 1973-03-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00199123A Expired - Lifetime US3722106A (en) 1970-11-25 1971-11-16 Clothes drier

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US (1) US3722106A (enrdf_load_stackoverflow)
JP (1) JPS4934132Y1 (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902254A (en) * 1973-10-15 1975-09-02 Mc Graw Edison Co Laundry system with drying tumbler
US3959891A (en) * 1974-12-30 1976-06-01 Whirlpool Corporation Removable lint screen assembly for a dryer
US4468867A (en) * 1981-02-27 1984-09-04 Tokyo Shibaura Denki Kabushiki Kaisha Drying apparatus
GB2188717A (en) * 1986-03-31 1987-10-07 Raytheon Co Clothes dryer with a lint incinerator
GB2246624A (en) * 1990-08-03 1992-02-05 Mayc Sa Tumble-drier filter coupling device
US5802884A (en) * 1996-11-01 1998-09-08 Cavalli; Giuseppe Machine for washing and degreasing with solvents or for drying textile products or the like
US20040261288A1 (en) * 2003-06-30 2004-12-30 Beyerle Michael Thomas Clothes dryer drum projections
US20060179676A1 (en) * 2003-09-29 2006-08-17 Michael Goldberg Heat pump clothes dryer
US20070163144A1 (en) * 2003-05-23 2007-07-19 Lothar Dittmer Laundry drier
US20070251114A1 (en) * 2006-04-17 2007-11-01 Lg Electronics Inc. Dryer
US20070266587A1 (en) * 2006-05-17 2007-11-22 Herbert Kannegiesser Gmbh Method and apparatus for treating, preferably washing, spinning and/or drying, laundry
US20080115380A1 (en) * 2006-11-21 2008-05-22 Sanyo Electric Co., Ltd. Laundry Apparatus
US20080148943A1 (en) * 2006-12-22 2008-06-26 G.A. Braun Inc. Lint Collection Device, Method and System for Fabric Dryers
US20090158616A1 (en) * 2007-12-19 2009-06-25 Electrolux Home Products Laundry dryer having three roller drum support system and reversing idler assembly
US20090260248A1 (en) * 2008-04-18 2009-10-22 Mabe Canada Inc. Clothes dryer with thermal insulation pad
US20110016736A1 (en) * 2008-06-03 2011-01-27 Jae-Seok Kim Clothes dryer
CN107858818A (zh) * 2016-09-21 2018-03-30 林内株式会社 衣物干燥机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546925A (en) * 1946-01-09 1951-03-27 Nineteen Hundred Corp Clothes drier
US2925665A (en) * 1957-04-08 1960-02-23 Maytag Co Clothes drier without casing
US3471940A (en) * 1967-11-17 1969-10-14 Maytag Co Compact dryer apparatus
US3648381A (en) * 1970-06-09 1972-03-14 Westinghouse Electric Corp Lint trap for a clothes dryer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2546925A (en) * 1946-01-09 1951-03-27 Nineteen Hundred Corp Clothes drier
US2925665A (en) * 1957-04-08 1960-02-23 Maytag Co Clothes drier without casing
US3471940A (en) * 1967-11-17 1969-10-14 Maytag Co Compact dryer apparatus
US3648381A (en) * 1970-06-09 1972-03-14 Westinghouse Electric Corp Lint trap for a clothes dryer

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902254A (en) * 1973-10-15 1975-09-02 Mc Graw Edison Co Laundry system with drying tumbler
US3959891A (en) * 1974-12-30 1976-06-01 Whirlpool Corporation Removable lint screen assembly for a dryer
US4468867A (en) * 1981-02-27 1984-09-04 Tokyo Shibaura Denki Kabushiki Kaisha Drying apparatus
GB2188717A (en) * 1986-03-31 1987-10-07 Raytheon Co Clothes dryer with a lint incinerator
GB2188717B (en) * 1986-03-31 1989-12-06 Raytheon Co Clothes dryer with a lint incinerator
GB2246624A (en) * 1990-08-03 1992-02-05 Mayc Sa Tumble-drier filter coupling device
GB2246624B (en) * 1990-08-03 1994-09-28 Mayc Sa Tumble drier filter coupling device
US5802884A (en) * 1996-11-01 1998-09-08 Cavalli; Giuseppe Machine for washing and degreasing with solvents or for drying textile products or the like
US20070163144A1 (en) * 2003-05-23 2007-07-19 Lothar Dittmer Laundry drier
US8661707B2 (en) * 2003-05-23 2014-03-04 Bsh Bosch Und Siemens Hausgeraete Gmbh Laundry drier
US7627960B2 (en) * 2003-06-30 2009-12-08 General Electric Company Clothes dryer drum projections
US20040261288A1 (en) * 2003-06-30 2004-12-30 Beyerle Michael Thomas Clothes dryer drum projections
US20060179676A1 (en) * 2003-09-29 2006-08-17 Michael Goldberg Heat pump clothes dryer
US7665225B2 (en) * 2003-09-29 2010-02-23 Michael Goldberg Heat pump clothes dryer
US20070251114A1 (en) * 2006-04-17 2007-11-01 Lg Electronics Inc. Dryer
US20070266587A1 (en) * 2006-05-17 2007-11-22 Herbert Kannegiesser Gmbh Method and apparatus for treating, preferably washing, spinning and/or drying, laundry
US7543396B2 (en) * 2006-11-21 2009-06-09 Sanyo Electric Co., Ltd. Laundry apparatus
US20080115380A1 (en) * 2006-11-21 2008-05-22 Sanyo Electric Co., Ltd. Laundry Apparatus
US20080148943A1 (en) * 2006-12-22 2008-06-26 G.A. Braun Inc. Lint Collection Device, Method and System for Fabric Dryers
US7886458B2 (en) * 2006-12-22 2011-02-15 G.A. Braun Inc. Lint collection apparatus and system for fabric dryers
US20090158616A1 (en) * 2007-12-19 2009-06-25 Electrolux Home Products Laundry dryer having three roller drum support system and reversing idler assembly
US7992321B2 (en) * 2007-12-19 2011-08-09 Electrolux Home Products Laundry dryer having three roller drum support system and reversing idler assembly
US20090260248A1 (en) * 2008-04-18 2009-10-22 Mabe Canada Inc. Clothes dryer with thermal insulation pad
US7895771B2 (en) * 2008-04-18 2011-03-01 Mabe Canada Inc. Clothes dryer with thermal insulation pad
US20110016736A1 (en) * 2008-06-03 2011-01-27 Jae-Seok Kim Clothes dryer
US8468711B2 (en) * 2008-06-03 2013-06-25 Lg Electronics Inc. Clothes dryer
CN107858818A (zh) * 2016-09-21 2018-03-30 林内株式会社 衣物干燥机

Also Published As

Publication number Publication date
JPS4934132Y1 (enrdf_load_stackoverflow) 1974-09-14

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