US3832870A - Combination washing and drying machine with water level control and fan clutch - Google Patents

Combination washing and drying machine with water level control and fan clutch Download PDF

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Publication number
US3832870A
US3832870A US00358134A US35813473A US3832870A US 3832870 A US3832870 A US 3832870A US 00358134 A US00358134 A US 00358134A US 35813473 A US35813473 A US 35813473A US 3832870 A US3832870 A US 3832870A
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United States
Prior art keywords
fan
clutch
liquid
washing
drive shaft
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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
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US00358134A
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English (en)
Inventor
Reeve L Todd
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.)
Hoover Co
Original Assignee
Hoover Co
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Filing date
Publication date
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Publication of US3832870A publication Critical patent/US3832870A/en
Assigned to MAYTAG CORPORATION, A DE CORP. reassignment MAYTAG CORPORATION, A DE CORP. MERGER (SEE DOCUMENT FOR DETAILS). JANUARY 26, 1989 - DELEWARE Assignors: CHICAGO PACIFIC CORPORATION
Assigned to HOOVER COMPANY, THE reassignment HOOVER COMPANY, THE NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Assignors: MAYTAG CORPORATION
Assigned to CHICAGO PACIFIC CORPORATION, A CORP. OF DE reassignment CHICAGO PACIFIC CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). DECEMBER 31, 1987 - DELAWARE Assignors: HOOVER COMPANY, THE, (MERGED INTO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/04—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid solely by water jets
    • 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
    • D06F18/00—Washing machines having receptacles, stationary for washing purposes, and having further drying means 

Definitions

  • ABSTRACT clutch mechanism on a drive shaft and the clutch is selectively operated by a liquid level float to prevent operation of the fan until after the washing liquid has been removed from the cabinet.
  • a machine of this type is, for example, disclosed in application No. 244,828, filed 17 Apr. 1972 by Leslie Todd-Reeve and assigned to the present assignee, in which the clothes are washed by upper and lower spray assemblies each of which is mounted for rotation about a vertical axis, one in the lower part of the compartment and below the clothes, and one in-the upper part of the compartment and above the clothes.
  • This prior construction also incorporates a circulating pump and valve arrangement for directing liquid to one or other of the assemblies at a time. Furthermore, it discloses the use of an emptying pump and also a fan for circulating air, after washing and rinsing has been completed, in order to dry the clothes.
  • the present invention is particularly, but not exclusively, applicable to a construction of this prior type.
  • a washing machine incorporates a compartment for articles to be washed by liquid and a fan for circulating drying air in the compartment.
  • the fan has a drive mechanism which is adapted to be operative only when the liquid in the machine is below a predetermined level.
  • the machine may incorporate a fan drive shaft and a liquid level responsive clutch between the fan drive shaft and the fan.
  • the fan drive shaft also carries a liquid emptying pump which is permanently connected thereto, so that when the shaft is driven in at least one direction of rotation, emptying will take place without the fan being driven.
  • the fan drive shaft may be driven by a reversible motor and may also carry a circulating pump for the distribution of liquid to spray assemblies in the compartment.
  • the liquid emptying pump and the circulating pump are arranged to be operative each when the other is inoperative, for example during opposite directions of rotation of the fan drive shaft.
  • FIG. 1 shows a fragmentary sectional view of the lower half of a combination washer-dryer in which the present invention may be used;
  • FIG. 2 is a plan view taken along the line 22 of FIG. 1 showing the lower spray arm and fan;
  • FIG. 3 is an enlarged sectional view of the clutch mechanism of FIG. 1 with the float in the upper position;
  • FIG. 4 is an enlarged sectional view of the clutch mechanism of FIG. 1 with the float in the lower position;
  • FIG. 5 is an enlarged sectional view taken along the line 5-5 of FIG. 3; a
  • FIG. 6 is an enlarged sectional view taken along the line 66 of FIG. 3;
  • FIG. 7 is an enlarged sectional view taken along the line 7-7 of FIG. 3;
  • FIG. 8 is an enlarged sectional view taken along the line 8-8 of FIG. 3.
  • a casing 10 affords a compartment 11 in which clothes are hung from upper rails in order to be washed and rinsed by means of an upper spray assembly (not shown) and a lower spray assembly 12.
  • Each spray assembly may be mounted for rotation about a vertical axis and may, for example, be provided with washing and/or rinsing liquid from a circulating pump 13 via a control valve 13a in such a way that only one spray assembly at a time receives liquid therefrom.
  • the control valve may be of the type described and shown in application No. 244,829, filed 17 Apr. 1972 by Leslie Todd-Reeve and assigned to the present assignee.
  • the circulating pump 13 has an impeller which is secured to a vertical shaft 14 and which is adapted to. be effective for circulating purposes in only one direction of rotation of the shaft.
  • the shaft 14 carries a pulley 15 at its lower end, which is connected via a belt drive to a reversible motor 16.
  • Below the impeller of the circulating pump 13, the shaft 14 also carries the impeller 18 of an emptying or drain pump, which is arranged to be effective to empty the machine in the opposite direction of rotation of the shaft 14.
  • the motor 16 which drives the pulley 15, in one direction of rotation drives the circulating pump 13 in an operative manner while the emptying pump impeller 18 is inoperative, and in the other direction of rotation the emptying pump impeller 18 is operative and the circulating pump 13 inoperative.
  • an air circulating fan 20 which has a hub 21 mounted to rotate freely on the upper end of the shaft 14 by means of a bearing 22.
  • an upper clutch member 25 is disposed for axial upward and downward sliding movement with respect to the hub 21.
  • the clutch member 25 is, however, keyed to the hub 20 to prevent relative rotation with respect thereto. Upward and downward movement of the clutch member 25 is caused by a level responsive mechanism comprising a float 30, a link 31 and a pair of levers 32 and 33, the latter of which has a bifurcated end'34 which is received in an annular rectangular-shaped groove in the external surface of the clutch member 25.
  • the assembly includes a stationary part 40 carrying a pawl 40a for engagement with two ratchet teeth 41 on the periphery of a flange 42 of the clutch member 25. Therefore, while the clutch member 25 can rotate with respect to the pawl 40a in one direction of rotation in an overrunning condition, when the clutch member 25 is rotated in the opposite direction, the two teeth 41 will limit the rotation of the clutch member 25 and cause it to be aligned in the manner shown in FIG. 1 for a purpose which will appear.
  • a further clutch member 50 Disposed below the clutch member 25 and secured to the shaft 14 is a further clutch member 50 (shown in detail in FIGS. 3, 4 and 8) of inverted cup-shape and having ratchet teeth 50a molded in its inner periphery for engagement with a spring-loaded pawl 51 on the external surface of an intermediate clutch plate 55 (shown in detail in FIGS. 3, 4 and 7) disposed between the clutch members 25 and 50.
  • the intermediate clutch plate 55 has a flange 56, the periphery of which has a pair of diametrically opposite ratchet teeth 57 which engage the pawl 40b on the stationary part 40 in one direction of rotation.
  • the upper surface of the intermediate clutch plate 55 has a pair of radial slots 58 which are capable of receiving, for driving purposes, a pair of dogs 59 on the underside of the clutch member 25.
  • the slots 58 and dogs 59 are aligned by the respective engagement of the teeth 41 and 57 on the pawls 40a and 40b.
  • the shaft 14 will be stationary and the float 30 will be in a lower position engaging a sump 60 of the machine.
  • the float 30 will be lifted by its buoyancy and in lifting will disengage the clutch member 25 from the intermediate clutch plate 55 by means of the linkage 31 and the levers 32 and 33.
  • the driving motor 16 will be energised to rotate the pulley and the shaft 14 in a direction of rotation such that the circulating pump 13 will be operative and the emptying pump impeller 18 inoperative.
  • the one-way clutch provided between the intermediate plate 55 and the further clutch member 50 will be engaged to drive the former, but the fan will not be driven due to the fact that the dogs 59 are disengaged from the slots 58.
  • the ratchet teeth 57 on the periphery of the flange 56 of the plate 55 will overrun the pawl 50b on the stationary member 40.
  • the drive motor On completion of a washing or rinsing cycle, the drive motor is reversed so that the drain pump becomes operative and the circulating pump inoperative.
  • the intermediate clutch plate 55 will rotate with the further clutch member 50 until one of the ratchet teeth 57 on the outer periphery of the flange 56 engages the pawl 40b on the stationary member 40 and remains in this position during the draining period. The same will happen to the clutch member if there is any slight drag through bearing 22.
  • the slots 58 will be aligned in a correct position below the dogs 59 so that the completion of the emptying of the sump 60, and the resulting drop in water level, will cause the float to lower the clutch member 25 into engagement with the intermediate clutch plate 55.
  • a washing machine comprising a casing including a compartment containing articles to be washed by a liquid and a fan for circulating drying air within said compartment, a drive mechanism for said fan, liquid level sensing means preventing operation of the fan when the liquid level in the machine is above a predetermined level.
  • a washing machine as claimed in claim 3 wherein said drive shaft also drives a drain pump, said drain pump being driven in at least one direction of rotation and said fan is not driven until the liquid has been removed from said machine.
  • a washing machine as claimed in claim 3 wherein said drive shaft is driven by a reversible motor, said drive shaft also driving a circulating pump for distribution of washing liquid to spray assemblies within said compartment.
  • said clutch mechanism includes at least two cooperable clutch members, one of said clutch members having at least one dog associated therewith, another of said clutch members having at least one recess associated therewith and adapted to receive said dog, stop means associated with said clutch mechanism to hold said clutch members in relative positions to align said dog and said recess when said drive shaft is driven in one "direction of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
US00358134A 1972-05-23 1973-05-07 Combination washing and drying machine with water level control and fan clutch Expired - Lifetime US3832870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2422772A GB1429933A (en) 1972-05-23 1972-05-23 Washing machine

Publications (1)

Publication Number Publication Date
US3832870A true US3832870A (en) 1974-09-03

Family

ID=10208398

Family Applications (1)

Application Number Title Priority Date Filing Date
US00358134A Expired - Lifetime US3832870A (en) 1972-05-23 1973-05-07 Combination washing and drying machine with water level control and fan clutch

Country Status (7)

Country Link
US (1) US3832870A (it)
DE (1) DE2326339A1 (it)
FR (1) FR2185712B1 (it)
GB (1) GB1429933A (it)
IT (1) IT985100B (it)
SE (1) SE7307188L (it)
ZA (1) ZA733462B (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180085A (en) * 1978-11-03 1979-12-25 White Consolidated Industries, Inc. Dishwasher fill float
US5010920A (en) * 1989-04-05 1991-04-30 Aktiebolaget Electrolux Device for emptying water from a dishwasher
US6550607B1 (en) 2000-11-02 2003-04-22 Premark Feg L.L.C. Jam detection system for a warewasher
US20030110575A1 (en) * 2001-12-14 2003-06-19 Lee Tae Hee Washing machine with float type clutch and control method for the float type clutch
US20050081894A1 (en) * 2003-10-17 2005-04-21 Gianluca Pardini Safety actuation device for a dish-washing machine
US6951121B2 (en) * 2001-09-19 2005-10-04 Lg Electronics Inc Washing machine having floatage clutch
US20100024850A1 (en) * 2006-10-20 2010-02-04 Premark Feg L.L.C. Drive systems for warewashers
US10161073B2 (en) * 2015-07-27 2018-12-25 Whirlpool S.A. Floating coupling system for laundry appliance equipment
CN111166270A (zh) * 2020-01-15 2020-05-19 宁波方太厨具有限公司 一种清洗机的工作机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE536065C (de) * 1930-04-13 1931-10-19 Und Eisengiesserei Wilhelm Qua Schleuder zum Nassbehandeln, Entfeuchten und Belueften von Textilstoffen
US1893797A (en) * 1930-11-10 1933-01-10 Charles W Foster Washing machine
US2680367A (en) * 1951-09-07 1954-06-08 Dougherty James Portable clothes washer
US3285038A (en) * 1964-11-27 1966-11-15 Ametek Inc Laundry machines
US3664159A (en) * 1969-03-31 1972-05-23 Zanussi A Spa Industrie Household device for washing, smoothing and drying articles of apparel, underwear clothing and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE536065C (de) * 1930-04-13 1931-10-19 Und Eisengiesserei Wilhelm Qua Schleuder zum Nassbehandeln, Entfeuchten und Belueften von Textilstoffen
US1893797A (en) * 1930-11-10 1933-01-10 Charles W Foster Washing machine
US2680367A (en) * 1951-09-07 1954-06-08 Dougherty James Portable clothes washer
US3285038A (en) * 1964-11-27 1966-11-15 Ametek Inc Laundry machines
US3664159A (en) * 1969-03-31 1972-05-23 Zanussi A Spa Industrie Household device for washing, smoothing and drying articles of apparel, underwear clothing and the like

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180085A (en) * 1978-11-03 1979-12-25 White Consolidated Industries, Inc. Dishwasher fill float
US5010920A (en) * 1989-04-05 1991-04-30 Aktiebolaget Electrolux Device for emptying water from a dishwasher
US6550607B1 (en) 2000-11-02 2003-04-22 Premark Feg L.L.C. Jam detection system for a warewasher
US6951121B2 (en) * 2001-09-19 2005-10-04 Lg Electronics Inc Washing machine having floatage clutch
US20030110575A1 (en) * 2001-12-14 2003-06-19 Lee Tae Hee Washing machine with float type clutch and control method for the float type clutch
US6880192B2 (en) * 2001-12-14 2005-04-19 Lg Electronics Inc. Washing machine with float type clutch and control method for the float type clutch
US20050081894A1 (en) * 2003-10-17 2005-04-21 Gianluca Pardini Safety actuation device for a dish-washing machine
US20100024850A1 (en) * 2006-10-20 2010-02-04 Premark Feg L.L.C. Drive systems for warewashers
US8226778B2 (en) 2006-10-20 2012-07-24 Premark Feg L.L.C. Drive systems for warewashers
US10161073B2 (en) * 2015-07-27 2018-12-25 Whirlpool S.A. Floating coupling system for laundry appliance equipment
CN111166270A (zh) * 2020-01-15 2020-05-19 宁波方太厨具有限公司 一种清洗机的工作机构
CN111166270B (zh) * 2020-01-15 2023-08-18 宁波方太厨具有限公司 一种清洗机的工作机构

Also Published As

Publication number Publication date
GB1429933A (en) 1976-03-31
ZA733462B (en) 1975-01-29
FR2185712A1 (it) 1974-01-04
IT985100B (it) 1974-11-30
DE2326339A1 (de) 1973-12-06
SE7307188L (it) 1973-11-26
AU5605973A (en) 1974-11-28
FR2185712B1 (it) 1976-11-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HOOVER COMPANY, THE, OHIO

Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:MAYTAG CORPORATION;REEL/FRAME:005241/0179

Effective date: 19890223

Owner name: CHICAGO PACIFIC CORPORATION, A CORP. OF DE

Free format text: MERGER;ASSIGNOR:HOOVER COMPANY, THE, (MERGED INTO);REEL/FRAME:005241/0161

Effective date: 19871221

Owner name: MAYTAG CORPORATION, A DE CORP.

Free format text: MERGER;ASSIGNOR:CHICAGO PACIFIC CORPORATION;REEL/FRAME:005241/0170

Effective date: 19890126