Washing machine
First Claim
1. A washing machine for fabric articles comprising:
- a receptacle having a central axis and arranged to receive washing liquid and a fabric article load to be washed by the liquid;
means for supplying washing liquid to said receptacle and means for draining liquid from said receptacle, said liquid supply means and said drain means together constituting means effective to maintain the fabric article load in a liquid-soaked condition while accumulating no more liquid in said receptacle than would immerse the lower portion of a full load of fabric articles;
drive means connected to said receptacle, said drive means including means to selectively laterally offset the receptacle axis with respect to a predetermined axis so that said receptacle axis moves in direct response to said drive means in a predetermined path about said predetermined axis, said drive means including means for restraining said receptacle from rotating about the receptacle axis during movement of the receptacle axis in the predetermined path;
thereby to cause interaction between the wall of said receptacle and the fabric articles for washing the fabric articles.
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Accused Products
Abstract
An automatic washing machine of the fresh-water, vertical-axis type has a dynamic system which includes a single perforate wash basket arranged to be driven continuously such that its central axis moves in an orbital path about another axis. The basket is restrained from rotating about its central axis when it is moving about the other axis and each point of the basket moves in a circulate path having an effective diameter which is small in relation to the diameter of the basket and having substantially the same excursion as the orbital path of the central axis of the basket. Water and soil removing agent are introduced into the basket during orbital motion and that motion is effective to induce a continuous motion of the fabric article load for washing the load. The machine tub and other working components are placed in the moving system and provide a stable base for the basket. Following washing, preferably the basket'"'"'s central axis is positioned in substantial alignment with the axis about which it was orbiting and is rotated about this axis to centrifugally remove water from the fabric load. The basket is contoured to enhance toroidal and annular movement of the fabric load. The machine transmission has an input shaft driven by a reversible electric motor, and an output shaft connected to the basket, the transmission having drive elements for interconnecting the output shaft and the input shaft. The drive elements include eccentric drive members operative to shift the axis of the output shaft laterally from the axis of the input shaft when the input shaft is rotated in one direction, thereby driving the output shaft in an orbital path about the axis of the input shaft, and operative to return the axis of the output shaft from its laterally offset relationship when the input shaft is rotated in the other direction, thereby causing the output shaft to rotate about the axis of the input shaft. A one-way clutch and a disc brake assembly, including an off-center coupling, cooperate with the drive elements to restrain the basket from rotating about its own axis when in the orbit mode and to rotationally drive the basket when in the water extraction mode.
75 Citations
72 Claims
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1. A washing machine for fabric articles comprising:
- a receptacle having a central axis and arranged to receive washing liquid and a fabric article load to be washed by the liquid;
means for supplying washing liquid to said receptacle and means for draining liquid from said receptacle, said liquid supply means and said drain means together constituting means effective to maintain the fabric article load in a liquid-soaked condition while accumulating no more liquid in said receptacle than would immerse the lower portion of a full load of fabric articles;
drive means connected to said receptacle, said drive means including means to selectively laterally offset the receptacle axis with respect to a predetermined axis so that said receptacle axis moves in direct response to said drive means in a predetermined path about said predetermined axis, said drive means including means for restraining said receptacle from rotating about the receptacle axis during movement of the receptacle axis in the predetermined path;
thereby to cause interaction between the wall of said receptacle and the fabric articles for washing the fabric articles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a receptacle having a central axis and arranged to receive washing liquid and a fabric article load to be washed by the liquid;
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13. A method of washing a fabric article load in a receptacle adapted to receive the article load and washing liquid, comprising the steps of:
- moving the axis of the receptacle into laterally offset relationship with respect to a predetermined axis, moving the receptacle axis about the predetermined axis while restraining the receptacle from rotating about the receptacle axis to induce repeated contacts between the wall of the receptacle and the fabric article load to wash the load, returning the receptacle axis from its laterally offset relationship with respect to the predetermined axis, and revolving the receptacle to extract liquid centrifugally from the article load.
- View Dependent Claims (14)
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15. A washing machine including:
- an open-topped, perforate, receptacle having a central axis and mounted in an upright position to receive washing liquid and a load of fabric articles to be washed by the liquid;
means for supplying washing liquid to said receptacle and means for draining liquid from said receptacle, said liquid supply means and said drain means together constituting means effective to maintain the fabric article load in a liquid-soaked condition while accumulating no more liquid in said receptacle than would immerse the lower portion of a full load of fabric articles;
input drive means rotatable about its axis;
means connecting said receptacle to said input drive means to selectively laterally offset the central axis of said receptacle from the axis of said input drive means so that said receptacle moves about the axis of the input drive means in response to rotation of said input drive means;
means for restraining said receptacle from rotation about its central axis as said receptacle moves about the axis of said input drive means;
whereby movement of the receptacle induces repeated contacts between the wall of the receptacle and the fabric articles to wash them; and
means connected to the receptacle for rotating said receptacle to centrifugally extract washing liquid from said articles. - View Dependent Claims (21, 22)
- an open-topped, perforate, receptacle having a central axis and mounted in an upright position to receive washing liquid and a load of fabric articles to be washed by the liquid;
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16. A washing machine for fabric articles comprising:
- an open-topped perforate receptacle arranged to receive washing liquid and a fabric article load to be washed by the liquid;
means for supplying washing liquid to said receptacle and means for draining liquid from said receptacle, said liquid supply means and said drain means together constituting means effective to maintain the fabric article load in a liquid-soaked condition while accumulating no more liquid in said receptacle than would immerse the lower portion of a full load of fabric articles;
a mount drivingly connected to said receptacle;
drive means connected to said receptacle mount to selectively laterally offset said receptacle mount from a predetermined axis and move said receptacle mount in a predetermined path about and laterally spaced from the predetermined axis and to selectively rotate said receptacle mount;
means for restraining said receptacle from rotation as said receptacle moves in the predetermined path so that movement of said receptacle causes interaction between the wall of the receptacle and the fabric articles for washing the fabric articles;
said restraining means releasing said receptacle for rotation with said receptacle mount for centrifugal extraction of liquid from the fabric article load. - View Dependent Claims (17, 18, 19, 20)
- an open-topped perforate receptacle arranged to receive washing liquid and a fabric article load to be washed by the liquid;
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23. A washing machine including:
- an open-topped, perforate, generally cylindrical receptacle mounted in an upright position to receive washing liquid and a fabric article load to be washed by the liquid;
means for supplying washing liquid to said receptacle;
drive means connected to said receptacle and effective for moving said receptacle with its central axis following an orbital path about a second axis substantially parallel to and spaced a predetermined distance from the central axis of said receptacle, the radius of said receptacle being substantially greater than the predetermined distance;
said drive means maintaining said receptacle in a predetermined attitude relative to the second axis during the orbital movement for effecting washing of the fabric load, and said drive means including means for translating said receptacle to bring the receptacle axis into alignment with the second axis and for rotating said receptacle about its axis to centrifugally extract washing liquid from the fabric article load and said receptacle. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
- an open-topped, perforate, generally cylindrical receptacle mounted in an upright position to receive washing liquid and a fabric article load to be washed by the liquid;
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31. A method of washing fabric articles comprising steps of:
- disposing the articles in an open-topped receptacle;
introducing washing liquid into the receptacle;
orbiting the receptacle about a second axis spaced a predetermined distance from the axis of the receptacle, with the radius of the receptacle being substantially larger than the predetermined distance, while restraining the receptacle from rotating about the receptacle axis for washing the fabric articles;
moving the receptacle so that the receptacle axis is in alignment with the second axis; and
rotating the receptacle about the second axis to centrifugally extract the wash liquid from the receptacle and the fabric articles. - View Dependent Claims (32)
- disposing the articles in an open-topped receptacle;
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33. A drive arrangement for driving a washing machine fabric receiving basket comprising:
- a first rotary drive element having an axis of rotation;
rotary drive means drivingly connected to said first rotary drive element for rotating said first rotary drive element about its axis of rotation;
a second rotary drive element mounted eccentric to the axis of and driven by said first rotary drive element for movement about the axis of rotation of said first rotary drive element;
a third rotary drive element mounted eccentric to the axis of and driven by said second rotary drive element for movement about the axis of rotation of said first rotary drive element; and
means interconnecting said third rotary drive element with said basket so that said basket is moved with its axis following an orbital path as said third rotary drive element moves about the axis of rotation of said first rotary drive element. - View Dependent Claims (34, 35, 36, 37)
- a first rotary drive element having an axis of rotation;
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38. A washing machine comprising:
- a washing machine cabinet structure;
a tub suspendedly mounted to said cabinet structure for movement relative thereto;
a perforate basket supported within said tub for receiving fabric articles and washing liquid;
means for supplying washing liquid to said basket;
reversible rotary drive means mounted to said tub;
transmission means mounted to said tub and having;(a) a first eccentric drive assembly operatively connected to said reversible rotary drive means, (b) a second eccentric drive assembly operatively connected to and driven by said first eccentric drive assembly with its axis of rotation spaced a first predetermined distance from the axis of rotation of said first eccentric drive assembly, (c) rotary output means operatively connected to and driven by said second eccentric drive asembly with its axis of rotation spaced a second predetermined distance from the axis of rotation of said second eccentric drive assembly, (d) lost-motion means for limiting relative movement of said first and second eccentric drive assemblies between first and second relative angular positions, the axis of said rotary output means being spaced from the axis of rotation of said first eccentric drive assembly a distance equal to the total of said first and said second predetermined distances when said first and second eccentric drive assemblies are in their first relative angular positions, and rotation of said first eccentric drive assembly in a first direction by said rotary drive input means being effective to cause said first and second eccentric drive assemblies to assume their first relative angular positions, means interconnecting said rotary output means and said basket so that movement of said rotary output means by rotation of said first eccentric drive assembly in the first direction is operative to move said basket in an orbital path for imparting mechanical energy to the fabric articles causing the fabric articles to be washed by the washing liquid. - View Dependent Claims (39, 40, 41, 42, 43)
- a washing machine cabinet structure;
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44. In a clothes washing machine:
- a top-loading clothes basket having a central axis;
transmission means for translating said basket to wash the clothes and for rotating said basket to centrifugally extract liquid from the clothes, said transmission means having a drive shaft rotatable about its own axis and an output shaft, each of said shafts extending in the same direction as said central axis and said output shaft being connected to said clothes basket;
said transmission means having interconnecting elements therein for driving said output shaft from said drive shaft, said drive elements including selective shifting means for shifting the axis of said output shaft laterally from the axis of the drive shaft thereby to translate said output shaft in an orbital path relative to the axis of said drive shaft, and for shifting the relative position of the axes of said input and drive shafts into alignment thereby to rotate said output shaft;
said basket being driven by the orbital movement of said output shaft to produce a clothes washing action and by the rotation of said output shaft to produce a centrifugal extraction. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52)
- a top-loading clothes basket having a central axis;
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45. In a clothes washing machine:
- a top-loading clothes basket having a central axis;
transmission means for translating said basket to wash clothes and for rotating said basket to centrifugally extract liquid from the clothes;
said transmission means having a drive shaft rotatable about its own axis and an output shaft, each of said shafts extending in the same direction as said central axis and said output shaft being connected to said clothes basket;
said transmission means having interconnection elements therein for driving said output shaft from said drive shaft, said interconnection elements including off-setting means for shifting the axis of said output shaft laterally from the axis of the drive shaft when said drive shaft is driven in one direction thereby to translate said output shaft in an orbital path relative to the axis of said drive shaft, and for aligning the axes of said drive and output shafts when said drive shaft is driven in the other direction, thereby to rotate said output shaft;
said basket being driven by the orbital movement of said output shaft to produce a clothes washing action and by the rotation of said output shaft to produce a centrifugal extraction action.
- a top-loading clothes basket having a central axis;
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53. A fabric washing machine comprising:
- a washing machine cabinet structure;
a tub structure supported in said cabinet structure by suspension means allowing said tub structure freedom of movement within said cabinet structure;
a perforate receptacle positioned in said tub to receive washing liquid and fabric articles to be washed by the liquid and including an upstanding sidewall;
means for supplying washing liquid to said receptacle and means for draining liquid from said receptacle, said liquid supply means and said drain means together constituting means effective to maintain the fabric article load in a liquid-soaked condition while accumulating no more liquid in said receptacle than would immerse the lower portion of a full load of fabric articles;
transmission means supported by said tub and operatively connected to said receptacle for moving said receptacle relative to said transmission so that the axis of said receptacle moves in a path about a second axis defined by said transmission and selectively displaced from the axis of said receptacle while restraining said receptacle from rotating about its own axis to cause repeated contacts between said sidewall of said receptacle and the fabric articles;
a drive motor supported by said tub structure and drivingly connected to said transmission;
said tub structure, transmission and drive motor having a combined mass substantially larger than the mass of said receptacle;
whereby the dominant portion of the input energy from said drive motor is imparted to the receptacle for washing the fabric articles by the repeated contacts while concurrently substantially isolating said cabinet structure from the vibrations associated with said movement of said receptacle. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61)
- a washing machine cabinet structure;
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62. A washing machine for fabric articles comprising:
- a fabric receiving receptacle having a central axis;
means for introducing washing liquid onto the articles;
means for selectively shifting the receptacle axis to selectively laterally offset the axis with respect to a predetermined axis;
means for moving the offset receptacle axis about the predetermined axis; and
means for restraining the receptacle from rotating about its axis during movement of the receptacle axis about the predetermined axis. - View Dependent Claims (63, 64, 65)
- a fabric receiving receptacle having a central axis;
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66. In a washing machine:
- a receptacle having a central axis and arranged to receive washing liquid and fabric articles to be washed by the liquid;
means for supplying washing liquid to said receptacle;
drive means connected to said receptacle and operative to drive said receptacle so that the central axis moves in an orbital path, the excursion of the orbital path being substantially less than the width of said receptacle;
said receptacle having an upright central portion, an annular bottom portion extending substantially radially outward from said central portion and having a plurality of apertures therethrough, said central portion including a generally conical section projecting upwardly from the radially inner circumference of said annular bottom portion, said conical section including a plurality of radially outwardly projecting vanes spiralling downwardly in a direction opposite to the direction of movement of said receptacle, and said receptacle also having an outer wall extending generally upwardly from the outer circumference of said bottom portion and having a plurality of apertures therethrough;
the movement of said receptacle in the orbital path being effective to cause said receptacle outer wall repeatedly to contact the fabric articles for imparting washing energy to the fabric articles. - View Dependent Claims (67, 68, 69, 70, 71, 72)
- a receptacle having a central axis and arranged to receive washing liquid and fabric articles to be washed by the liquid;
Specification