With Means To Control Or Isolate Vibration Patents (Class 68/23.1)
  • Patent number: 10711383
    Abstract: A water reuse control method of a multiple-drum washing machine, having a first washing drum and a second washing drum. When the first drum reaches a drainage process, comparing a time for the second drum to reach a water supply process T12 to a time for the first drum to reach a next drainage process T11; if T12<T11, the first drum waits until water is supplied into the second drum; if T12?T11, water in the first drum is directly drained. Alternatively, when the first drum reaches the water supply process, comparing time for the second drum to reach the drainage process T22 to time for the first drum to reach a next water supply process T21; if T22?T21, clean water is directly supplied into the first drum; if T22<T21, the first drum waits until the second drum drains water.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: July 14, 2020
    Assignee: QINGDAO HAIER DRUM WASHING MACHINE CO., LTD.
    Inventors: Wenwei Li, Jun Wu, Rongshuai Cai, Haibo Wang, Wenfeng Jiang
  • Patent number: 10597812
    Abstract: A drum washing machine includes a driving part which includes a driving motor, a first belt wheel fixed to a rotating shaft of a drum, a second belt wheel fixed to a rotating shaft of a rotating body, a first motor belt wheel fixed to a motor shaft of the driving motor and connected to the first belt wheel via a first transmission belt, a second motor belt wheel connected to the second belt wheel via a second transmission belt, and a clutch mechanism part configured for switching from a first driving form in which the second motor belt wheel is engaged with the clutch mechanism part so that the drum and the rotating body rotate at different speeds driven by the driving motor, and a second driving form in which the motor shaft is disconnected from the second motor belt wheel.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 24, 2020
    Assignees: Aqua Co., Ltd., Qingdao Haier Washing Machine Co., Ltd.
    Inventors: Hiromi Hirota, Shigeharu Nakamoto
  • Patent number: 10508378
    Abstract: A vibration-damping component of a washing machine comprises a suspender, a spring, a sleeve and an electromagnetic sensing device. The electromagnetic sensing device comprises an electromagnetic coil and a magnet. The electromagnetic coil surrounds the sleeve, the magnet and the spring are arranged in the sleeve and are fixed on the suspender, the sleeve surrounds the suspender in a slidable manner, and the weight of clothing is determined through measuring magnetic flux change of the electromagnetic coil when the sleeve slides on the suspender. In addition, the magnet and the electromagnetic coil make relative displacement, inductance in the electromagnetic coil changes, and water inflow can be detected through detecting the inductance. When dewatering begins, the vibratory magnitude of an outer drum is determined through the inductance change of the electromagnetic coil, and the stability of dewatering operation of the washing machine can be controlled accordingly.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: December 17, 2019
    Assignee: QINGDAO HAIER WASHING MACHINE CO., LTD.
    Inventors: Peishi Lv, Lin Yang, Yun Tian, Gangjin Zhang, Mingyan Shao
  • Patent number: 10301759
    Abstract: A washing machine includes a cabinet, a tub provided inside the cabinet to store wash water therein, a drum rotatably provided inside the tub, and a balancer comprising an upper side surface covering an outer surface of a bottom of the drum and a lower side surface formed at one side of the upper side surface in a planar shape while facing an inner surface of a bottom of the tub. The balancer is configured to counterbalance an unbalanced load of the drum, thereby saving energy and enhancing balancing efficiency.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: May 28, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Hyun Kim, Sang Up Lee, Dae Gyu Kang, Seung Youp Lee
  • Patent number: 10266686
    Abstract: An anti-vibration rubber of the present invention is an anti-vibration rubber for washing machines. In temperature variance measurement of dynamic viscoelasticity at a frequency of 30 Hz, the anti-vibration rubber has a maximum loss factor at a temperature of ?10° C. to 40° C., both inclusive, and has a loss factor of 0.4 or more in the entire temperature range of ?10° C. to 40° C., both inclusive, at the frequency of 30 Hz.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: April 23, 2019
    Assignee: Yamauchi Corporation
    Inventors: Toshio Saito, Hiroyuki Maruko
  • Patent number: 10184201
    Abstract: The present invention relates to a washing machine which includes a cylindrical part having a cylindrical shape and at least one balancer installed in the cylindrical part. The balancer includes a first balancer housing provided with a race in an annular shape with an open top and a second balancer housing to be coupled with the first balancer housing to cover the open top of the race. The balancer is installed in the cylindrical part in such a way that a coupling portion of the first balancer housing and the second balancer housing corresponding to an inner circumferential surface of the cylindrical part is covered by the cylindrical part, thereby reinforcing a strength of the balancer by the cylindrical part.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: January 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Jong Kim, Min Sung Kim, Jeong Hoon Kang, Seung Oh Kim, Yee Lee Wong
  • Patent number: 9951454
    Abstract: A washing machine includes first and second vibration attenuators provided on a support rod and in a housing, which is supported by a spring provided at a bottom of the support rod. Both of the first and second vibration attenuators apply frictional forces during a first vibration of the tub. Only the first vibration attenuator applies a frictional force during a second vibration of the tub. The first vibration is greater than the second vibration.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventor: Byeongjin Jeon
  • Patent number: 9915018
    Abstract: A washing machine includes a casing, an exterior container disposed within the casing, configured to store washing water for washing, and supported to the casing, and a suspension module disposed between the exterior container and the casing and configured to buffer a vibration transferred from the exterior container to the casing. The suspension module includes a holder disposed between a horizontal suspension and a vertical suspension and configured to generate a relative movement in a length direction and to perform buffering on a vibration in a direction that crosses the length direction when the vibration is reduced.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: March 13, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngjun Kim, Insik Yu, Youngjong Kim
  • Patent number: 9809918
    Abstract: Damper, in particular for washing machines with a spin cycle, with a housing having a central longitudinal axis and at least partially encompassing a housing interior by housing walls, a plunger displaceable in the housing along the central longitudinal axis, guided out of the housing and having at least one friction lining recess, fastening elements, arranged on open ends of the housing and the plunger, and at least one friction lining, arranged in the at least one friction lining recess and in frictional contact with opposite housing walls.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: November 7, 2017
    Assignee: SUSPA GMBH
    Inventors: Thomas Peuker, Dieter Mayer, Michael Weder
  • Patent number: 9562312
    Abstract: A laundry treating apparatus may include a tub, a drum, a driving system including a bearing housing and a driving motor for rotating a rotation shaft of the drum, supporting devices extending between a lower surface of the cabinet and the bearing housing, and a plurality of dampers installed between the supporting devices and the lower surface of the cabinet. The plurality of dampers may include first dampers extending inward from a front portion of the supporting devices toward the lower surface of the cabinet, and second dampers extending downward from the supporting devices toward the rear side of the cabinet. This arrangement may prevent vibration generated during rotation of the drum from being transferred to the tub, and thus an additional component for reducing vibration of the tub may not be required. Thus, the laundry treating apparatus may have a larger capacity within a fixed size of cabinet.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: February 7, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinwoong Kim, Hyundong Kim, Kyeonghwan Kim, Hyunseok Seo
  • Patent number: 9540754
    Abstract: A laundry treating appliance includes a rotatable drum for receiving a laundry load. The rotatable drum includes a cylindrical body with a cylindrical wall about a longitudinal axis, and a metal cover at one end thereof, the metal cover having an annular groove formed by a first wall, a second wall spaced from the first wall, a third wall extending between the first and second walls, and a fourth wall extending from the second wall. A metal adjoining piece having a first adjoining wall is coupled with the third wall and a second adjoining wall is coupled with the fourth wall, wherein a hollow annular raceway is defined by the second wall, the third wall, the first adjoining wall, and the second adjoining wall. A sound dampener is disposed adjacent at least one of the walls.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 10, 2017
    Assignee: Whirlpool Corporation
    Inventors: Christopher L. Borlin, Mark R. Haslanger, George W. Malheiros, Stephen D. Ostdiek
  • Patent number: 9534335
    Abstract: A laundry treating appliance includes a rotatable drum for receiving a laundry load. The rotatable drum includes a cylindrical body with a cylindrical wall about a longitudinal axis, and a metal cover at one end thereof, the metal cover having an annular groove formed by a first wall, a second wall spaced from the first wall, a third wall extending between the first and second walls, and a fourth wall extending from the second wall. A first land is secured to the third wall and has a leg extending toward the second wall adjacent to the third wall, and a second land is secured to the fourth wall. A non-metal adjoining piece is coupled with the first and second land. A hollow annular raceway is defined by the second wall, the leg, the first adjoining wall, and the second adjoining wall and includes a moveable mass disposed therein.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 3, 2017
    Assignee: Whirlpool Corporation
    Inventors: Christopher L. Borlin, Donald E. Erickson, Mark R. Haslanger, George W. Malheiros, Stephen D. Ostdiek
  • Patent number: 9476157
    Abstract: A drain hose has a simple structure which absorbs vibration of a drain pump, and a washer has the same. The washer includes a main body, a drain pump disposed at the lower portion of the main body, a drain hose to guide wash water pumped by the drain pump to the outside of the main body, and an anti-vibration member formed of a material differing from the drain hose, and including a corrugation part connected between the drain pump and the drain hose and absorbing vibration of the drain pump during drainage of the wash water.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 25, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ho Park, Doo Young Ryu, Chan Woo Park, John Ha Park
  • Patent number: 9267225
    Abstract: Disclosed is a method of operating a laundry treating appliance having a tub, a rotatable drum within the tub, and a rotatable drive shaft supported in a bearing assembly and mounted to the drum, with the bending moment acting on the bearing assembly being determined and used as an input to control the operation of the appliance.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 23, 2016
    Assignee: Whirlpool Corporation
    Inventors: Donald E. Erickson, Farshad Farid
  • Patent number: 9091506
    Abstract: A float support member that comprises a base for mounting to an object, primary linkages rotatably coupled by a primary pin defining a primary movable pin point that moves both in a lateral direction and a transverse direction, and secondary linkages rotatably coupled to said primary linkages, respectively, by first and second secondary pins, respectively. The first and second secondary pins define first and second secondary movable pin points, respectively, that each move both in a lateral direction and a transverse direction. The first and second secondary linkages being rotatably coupled to the base by first and second stationary pins, respectively, defining first and second stationary pin points, respectively. The position of the primary movable pin point in both the lateral and transverse directions depends on the position of both of the first and second secondary moveable pin points in both the lateral and transverse directions and vice versa.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: July 28, 2015
    Assignee: Amphenol Corporation
    Inventor: Erik Strahl
  • Patent number: 9080278
    Abstract: A washing machine capable of preventing a balancer from being deviated from the center of a washing tub and eccentrically assembled to the washing tub, and a method of manufacturing the same is provided. For this purpose, a bending part bent corresponding to an outer circumference of the balancer may be formed at the washing tub. The balancer may include a connection rim formed at the outer circumference thereof for easier connection with the washing tub, and the bending part may enclose the connection rim.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Seung Hwan Chung
  • Patent number: 9039786
    Abstract: A control method of a laundry machine is disclosed. The control method of a laundry machine comprising a balancer includes an unbalance sensing step, wherein the unbalance sensing step recognizes an unbalancemaximum value and an unbalanceminimum value of an unbalance wave and the unbalance sensing step determines an average value of the two unbalance maximumvalue and unbalanceminimum value to be of the unbalance generated in a drum provided in the laundry machine.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: May 26, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jae Hyuk Jang, Bon Kwon Koo
  • Patent number: 9038424
    Abstract: A washing machine for washing laundry is provided. The washing machine includes a tub to hold washing water, a drum in the tub to hold laundry, a rotational shaft connected to a rear surface of the drum, a tub back, which forms a rear side of the tub and through which the rotational shaft passes, a bearing housing that supports the rotational shaft, and a suspension that buffers and supports the bearing housing. A vibration sensor senses vibration of a structure supported by the suspension, thereby enabling control of rotation of the drum based on the sensed vibration.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: May 26, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Ig Geun Kwon, Hyun Seok Seo, Soo Bong Kim, Min Gyu Jo, Dong Il Lee, Suk Yun Moon, Sang Hun Kim, Hee Tae Lim, Jung Tae Song
  • Patent number: 9003838
    Abstract: A laundry treating appliance having a drum, defining a treating chamber, with a lifter and a balancing system having at least one balancing ring and a reservoir located in the lifter and a liquid supply system fluidly coupled to the reservoir. Liquid may be supplied to the ring and to the reservoir through the ring to offset an imbalance in a laundry load located within the drum.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: April 14, 2015
    Assignee: Whirlpool Corporation
    Inventors: Stephen D. Ostdiek, Vishal Verma
  • Patent number: 8991222
    Abstract: Disclosed herein is a washing machine that is capable of increasing a frictional force between an outer diameter of a rotary shaft and an inner race of a bearing to prevent the sliding between the rotary shaft and the bearing due to a gap between the outer diameter of the rotary shaft and the inner race of the bearing, thereby preventing creep noise from the rotary shaft. The washing machine includes at least one elastic member disposed between the outer diameter of the rotary shaft and the inner race of the bearing to prevent noise due to the sliding between the rotary shaft and the bearing.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do Yeon Kim, Doo Young Ryu
  • Patent number: 8991221
    Abstract: The present description relates to a household appliance for treating soft goods, in particular a laundry washing or washing/drying machine of the electronically controlled type fitted with an electronic control system (17). The household appliance comprises an oscillating assembly connected to the frame by means of a suspension system comprising at least one damper (1). The damper (1) comprises two elements (3, 4) adapted to move reciprocally, at least one magnetic element, preferably a permanent magnet (9), and an electronic module (6) provided with at least one magnetic sensor, preferably a Hall element (12). The magnetic element (9) and the magnetic sensor (12) are housed in the damper (1) so as to detect the reciprocal motion of the two elements (3, 4).
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: March 31, 2015
    Assignee: Indesit Company S.p.A.
    Inventors: Valerio Aisa, Paolo Santonicola, Giovanni Bombardieri, Costantino Mariotti, Federica Minni
  • Patent number: 8991219
    Abstract: The present invention relates to a washing machine (1) that comprises a tub (2), a cylindrical drum (3) having a rear wall (7) wherein the items to be washed are emplaced, disposed coaxially inside the tub (2), one or more ribs (4) arranged on the inner periphery of the drum (3) and forming protrusions into the drum (3), a shaft (8) housed in the tub (2) that transfers the movement to the drum (3) and a bearing (9) situated at the center of the tub (2) rear wall (7), remaining stationary together with the tub (3), wherein the shaft (8) is housed, extending towards the center of the drum (3) and at least one water feeding line (10) situated inside the bearing (9) having an inlet connected to the mains water supply and an outlet opening outside the bearing (9).
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: March 31, 2015
    Inventor: Levent Hasanreisoglu
  • Patent number: 8984917
    Abstract: A washing machine in accordance with the present invention includes a mounting member disposed between a stator and a bearing housing. Thus, when a motor is rotated according to an operation of the washing machine, the transmission of vibration, which is generated by a repulsive force of the stator, to the bearing housing can be reduced efficiently. Accordingly, a tub coupled to the bearing housing can be prevented from vibrating due to the vibration of the stator, and noise due to the vibration of the tub can be reduced.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: March 24, 2015
    Assignee: LG Electronics Inc.
    Inventors: Seong Hyeon Kim, Kyung Seop Hong, Jae Won Chang, Seung Chul Park
  • Patent number: 8955183
    Abstract: A laundry appliance having a perforated rotatable drum for spin dehydrating a wet textile load, an electric motor for providing an accelerating force which in use causes the drum to rotate, load sensors for detecting any static dynamic imbalance in the rotation of the drum, and a controller which receives inputs from the load sensors and is programmed to, in a spin-up phase, energize said electric motor so as to evenly distribute the load within the drum and thereby minimize any static or dynamic imbalance when the drum rotates.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: February 17, 2015
    Assignee: Fisher & Paykel Appliances Limited
    Inventor: David Charles Rhodes
  • Patent number: 8943860
    Abstract: A vibration control device for a washing machine is composed of a drum to house laundry, a washing tank to house the drum which is suspended by a chassis of the washing machine, a drum driving motor, an acceleration detecting unit to detect an acceleration in the horizontal direction of the washing tank, a linear actuator fixed to the chassis of the washing machine to generate a driving force in the horizontal direction to the chassis of the washing machine, a force transmitting unit to connect a movable axis of the linear actuator with the washing tank, and a control unit to control the driving force of the linear actuator based on the acceleration detected by the acceleration detecting unit. The force transmitting unit transmits the driving force and absorbs mechanistically relative displacement in the back and forth direction and in the up and down direction.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 3, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaaki Hirai, Akiyuki Yokoyama
  • Patent number: 8931312
    Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 13, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jae Won Chang, Hee Tae Lim, Si Moon Jeon, Kyeong Hwan Kim, Hyun Seok Seo
  • Patent number: 8887538
    Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: November 18, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Won Chang, Hee Tae Lim, Si Moon Jeon, Kyeong Hwan Kim, Hyun Seok Seo
  • Patent number: 8887537
    Abstract: A drum type washing machine is provided. The drum type washing machine may include a cabinet, a tub fixed to an inner side of the cabinet, a drum rotatably arranged in the tub, and a driving motor positioned at a rear side of the drum for generating a driving force that rotates the drum. The washing machine may also include a supporting plate to rotatably support a rotational shaft extending between the motor and the drum, and a plurality of supporters connected between the supporting plate and the cabinet. Such an arrangement may increase washing capacity by increasing a diameter of the drum without increasing an external size of the cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: November 18, 2014
    Assignee: LG Electronics Inc.
    Inventor: Jae-Won Chang
  • Patent number: 8857222
    Abstract: A washing machine including a vibration reduction member formed in a stator is provided. Therefore, when a motor rotates according to operation of the washing machine, delivery of a vibration due to a repulsive force of the stator to a bearing housing can be efficiently reduced. Further, a vibration of a tub fastened to the bearing housing due to the vibration is prevented and noise due to the vibration of the tub is reduced.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: October 14, 2014
    Assignee: LG Electronics Inc.
    Inventor: Kyung Seop Hong
  • Patent number: 8851247
    Abstract: A damper includes a bobbin which is housed in a cylinder and on which a coil is wound and yokes housed in the cylinder. At least one of the yokes is disposed at a first axial side of the bobbin, and at least one other of the yokes is disposed at a second axial side of the bobbin. A magnetic viscous fluid is retained on inner surfaces of the yokes and an inner surface of the bobbin. Sealing members are configured to prevent leakage of the magnetic viscous fluid. A shaft extends through the yokes, the bobbin and the sealing members and is configured to be axially reciprocable relative to the yokes, the bobbin and the sealing members such that reciprocation of the shaft does not substantially displace the magnetic viscous fluid. The coil, the bobbin and the yokes are fixed together by a resin.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: October 7, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Consumer Electronics Holdings Corporation, Toshiba Home Appliances Corporation
    Inventor: Tsuyoshi Shiga
  • Patent number: 8820124
    Abstract: A drum type washing machine including a balancer capable of rapidly reducing vibration of a spin tub. The drum type washing machine includes a spin tub which is rotated by receiving rotational force from a driving motor through a rotating shaft, a rear balancer having an annular shape and being coupled to the spin tub, and a shaft flange provided at a center portion thereof with the rotating shaft and coupled to the spin tub so as to uniformly transfer the rotational force to the spin tub. The rear balancer is supported on a rear surface of a rear cover by the shaft flange. Thus, the balls accommodated in the balancer are prevented from moving out of the balancer, even if the balancer is broken due to long-period use.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ja Young Kim, Ito Michaki, Doo Young Ryu, Myung Sun Kang
  • Patent number: 8813527
    Abstract: A pneumatic variable damping device for attenuating the motion of a wash tub in a washing machine is disclosed. The pneumatic variable damping device includes a pneumatic cylinder defining a first chamber and a second chamber. The pneumatic cylinder includes a piston slidably mounted to the cylinder. The piston separates the first chamber from the second chamber. The pneumatic variable damping device includes a first valve coupled to the first chamber and a second valve coupled to the second chamber. The first valve and the second valve are configured to restrict the flow of pneumatic fluid from the respective chambers of the pneumatic cylinder. The first valve and the second valve can also be configured to allow the free flow of pneumatic fluid from the respective chambers of the pneumatic cylinder.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: August 26, 2014
    Assignee: General Electric Company
    Inventor: Richard Allen Vincent
  • Publication number: 20140223972
    Abstract: A suspension unit assembly comprises a strut having a first end and a second end and a coupling disposed at the first end of the strut. The coupling has a strut part connected to the strut and a mounting part configured to tilt relative to the strut part of the coupling. A spring is disposed about the strut, one end of the spring being restrained relative to the mounting part of the coupling so that tilting movement between the strut part and the mounting part of the coupling causes the spring to deform and provide a return force that acts to return the coupling to an equilibrium position.
    Type: Application
    Filed: June 27, 2012
    Publication date: August 14, 2014
    Applicant: Fisher & Paykel Appliances Limited
    Inventor: Russell Joseph Jackson
  • Patent number: 8800326
    Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: August 12, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Won Chang, Hee Tae Lim, Si Moon Jeom, Kyeong Hwan Kim, Hyun Seok Seo
  • Patent number: 8800327
    Abstract: A drum type washing machine includes an annular recess formed in the front cover such that the annular recess is located immediately adjacent to a wall of the drum body; and a ball balancer including an annular-shaped racer having a closed internal space in which a plurality of balls and viscous oil are accommodated. The annular-shaped racer includes first and second injection molded members joined to each other to form the closed internal space. The ball balancer is supported by the annular recess formed in the front cover of the drum, and the ball balancer is configured to be attachable to the drum with the viscous oil and the plurality of balls already in the ball balancer.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ja Young Kim, Doo Young Ryu
  • Patent number: 8783072
    Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 22, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Won Chang, Hee Tae Lim, Si Moon Jeon, Kyeong Hwan Kim, Hyun Seok Seo
  • Patent number: 8782871
    Abstract: A manufacturing method of a laundry machine is disclosed. The manufacturing method of the laundry machine includes a suspension preparing step configured to prepare a suspension unit (40) configured to flexibly support a drum (30), a tub rear securing step configured to secure a tub rear (120) to the suspension unit (40), a drum securing step configured to a shaft (351) or the drum (30) to the suspension unit (40) via an inside of the tub rear (120), a tub front coupling step configured to couple a tub front (100) to the tub rear (120), a tub seating step configured to seat the tub front (100) and the tub rear (120) in a cabinet cabinet base (600)m and a suspension securing step configured to secure the suspension unit to the cabinet base (600).
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: July 22, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ig Geun Kwon, Soo Bong Kim, Dong Il Lee, Suk Yun Moon, Hee Tae Kim, Jung Tae Song
  • Patent number: 8776552
    Abstract: A washing machine and a laundry amount detection device thereof. The washing machine includes a cabinet, a tub provided in the cabinet, an elastic member to elastically support the tub at the cabinet, and a laundry amount detection device to detect an amount of laundry placed in the tub using a deformation amount of the elastic member.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: July 15, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Jun Lee, Jeong Su Han, Hyen Young Choi, Ji Hoon Ha
  • Patent number: 8757335
    Abstract: A damper obtaining damping force by the frictional resistance imparted by the viscosity of the magnetic viscous fluid is disclosed. The damper is provided with a seal not only on one (lower side) of the axial outer sides of the yoke but also on the other (upper side) of the axial outer sides of the yoke to trap the magnetic viscous fluid within the magnetic viscous fluid filling portion at both axial outer sides of magnetic viscous fluid filling portion. Because the leakage of the magnetic viscous fluid can be prevented, no air is introduced into the magnetic viscous fluid filling portion, to allow the density of the magnetic viscous fluid within magnetic viscous fluid filling portion to be maintained at a favorable level and prevent degradation of damping force.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: June 24, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Consumer Electronics Holdings Corporation, Toshiba Home Appliances Corporation
    Inventors: Yoshinori Kaneda, Shinichiro Kawabata, Koji Hisano, Hirokazu Izawa, Hiroshi Nishimura
  • Publication number: 20140165660
    Abstract: Disclosed herein is a washing machine that is capable of increasing a frictional force between an outer diameter of a rotary shaft and an inner race of a bearing to prevent the sliding between the rotary shaft and the bearing due to a gap between the outer diameter of the rotary shaft and the inner race of the bearing, thereby preventing creep noise from the rotary shaft. The washing machine includes at least one elastic member disposed between the outer diameter of the rotary shaft and the inner race of the bearing to prevent noise due to the sliding between the rotary shaft and the bearing.
    Type: Application
    Filed: February 19, 2014
    Publication date: June 19, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Do Yeon KIM, DOO YOUNG RYU
  • Patent number: 8726440
    Abstract: A method for determining a target rotational speed below an application rotational speed of a washing drum of a laundry treatment device having a drive and a vibrating system, wherein a dependence of a mechanical effect on items to be washed located in the washing drum on the respective nominal speed of the washing drum is used to ascertain the target rotational speed at which the mechanical effect is at the greatest. The mechanical effect at a respective target rotational speed is ascertained by measuring vibrating system movements of the vibrating system which exhibit greater frequency than the respective target rotational speed. The rotational speed at which the maximum vibrating system movement was measured is selected for carrying out the washing care procedure. The advantage of such a method is that the washing mechanics can be increased, thus improving the cleaning efficiency.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: May 20, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Edwin Bolduan, Gundula Czyzewski, Harald Moschütz, Ingo Schulze, Horst Wiemer
  • Patent number: 8726702
    Abstract: A drum type washing machine is provided. The washing machine may include a tub fixed to a cabinet, a drum rotatably provided in the drum, a motor rotating the drum, bearings provided in a bearing housing to support a rotation shaft connecting the motor to the drum, and a suspension coupled between the bearing housings and the cabinet to mitigate vibration generated as the drum rotates. A bracket may be coupled to a rear side of the bearing housing to form a rear end of the tub, and a gasket may be installed between the bracket and the tub to form a seal therebetween and prevent transmission of vibration from the bracket to the tub. This arrangement may allow for an increased capacity drum within a fixed volume cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: May 20, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Won Chang, Hee Tae Lim, Si Moon Jeon, Kyeong Hwan Kim, Hyun Seok Seo
  • Patent number: 8713976
    Abstract: A control system is provided for a washing machine including a cabinet, a wash tub positioned within the cabinet and a wash basket rotatably mounted within the wash tub. The control system includes a plurality of supports including two diagonally arranged supports. The plurality of supports are configured to support the washing machine on a surface. At least one load sensor is positioned with respect to each support of the two diagonally arranged supports. The at least one load sensor is configured to detect at least one force component applied to each support by a load within the wash basket. The at least one load sensor is further configured to generate a signal representative of the at least one force component. A controller is in signal communication with the at least one load sensor. The controller is configured to detect an operating load placement condition within the wash basket in response to at least one signal received from the at least one load sensor.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: May 6, 2014
    Assignee: General Electric Company
    Inventors: Christopher G. Hoppe, Ziqiang Hu
  • Patent number: 8701449
    Abstract: Disclosed herein are a water level/vibration sensing apparatus and a washing machine having the same. The water level/vibration sensing apparatus includes a housing provided with a pressure chamber communicating with an air inlet, a diaphragm unit moving forward and backward according to the variation of a pressure in the pressure chamber, a core and a coil forming a frequency varied according to the forward and backward movement of the diaphragm unit, and a collision member striking the diaphragm unit according to the movement of the housing. Therefore, the water level/vibration sensing apparatus simultaneously senses the washing water level and the vibration of the washing machine.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Il Back, Weon Jin Song
  • Patent number: 8695382
    Abstract: Disclosed herein is a washing machine that is capable of increasing a frictional force between an outer diameter of a rotary shaft and an inner race of a bearing to prevent the sliding between the rotary shaft and the bearing due to a gap between the outer diameter of the rotary shaft and the inner race of the bearing, thereby preventing creep noise from the rotary shaft. The washing machine includes at least one elastic member disposed between the outer diameter of the rotary shaft and the inner race of the bearing to prevent noise due to the sliding between the rotary shaft and the bearing.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: April 15, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do Yeon Kim, Doo Young Ryu
  • Patent number: 8677787
    Abstract: A drum type washing machine is provided. The washing machine may include a tub, a drum, a motor rotating the drum, bearing housings housing bearings to support a rotation shaft, a suspension connected to the bearing housings and a cabinet to mitigate vibration, a bracket coupled to the bearing housings, and a gasket installed between the bracket and the tub. Such an arrangement may allow volumes of the tub and the drum may be increased without increasing the volume of the cabinet.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Won Chang, Hee Tae Lim, Si Moon Jeon, Kyeong Hwan Kim, Hyun Seok Seo
  • Patent number: 8671718
    Abstract: A drum-type washing machine is disclosed, in which bearings are received in the bearing housing assembly. The bearing housing assembly may include a support portion coupled to a motor, and a coupling portion connected to a damper bracket.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 18, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hee Tae Lim, Jae Won Chang, Hyun Seok Seo, Min Gyu Jo
  • Patent number: 8671719
    Abstract: A drum type washing machine has a cabinet forming an outer appearance of the washing machine, a tub fixed inside the cabinet for storing the washing water, a drum disposed in the tub and having both side surfaces supported by the cabinet to be rotatable and an inlet through which laundries come in/go out on a circumferential surface thereof, and a driving motor fixed on one side surface of the drum to rotate the drum. Washing capacity can be increased while maintaining the entire size of the washing machine by increasing a diameter of the drum without increasing the size of the cabinet, and the entire size of the washing machine can be compacted by minimizing the installation space of the driving motor.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 18, 2014
    Assignee: LG Electronics Inc.
    Inventor: Jae Won Chang
  • Patent number: 8646292
    Abstract: A drum type washing machine is provided. The drum type washing machine includes a cabinet for forming an appearance; a tub fixed to an inner side of the cabinet and for storing washing water, a drum rotatably arranged in the tub for washing and dehydrating laundry, and a driving motor positioned at a rear side of the drum for generating a driving force by which the drum is rotated. The washing machine can increase washing capacity with maintaining an entire size thereof by increasing a diameter of the drum without increasing a size of the cabinet. The washing machine may include a supporting plate to rotatably support the rotational shaft, and a supporting unit to support the supporting plate, the supporting unit comprising a plurality of supporters connected between the supporting plate and the cabinet.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: February 11, 2014
    Assignee: LG Electronics Inc.
    Inventor: Jae-Won Chang
  • Patent number: RE44795
    Abstract: A drum type washing machine is provided, in which vibration is efficiently attenuated, by a maximum capacity within a size-fixed cabinet is provided, and by which a user does not bend over or sit down to load laundry into the washing machine. The drum type washing machine includes a cabinet forming an exterior of the drum type washing machine, a tub fixed within the cabinet, the tub having a laundry loading entrance at an outer circumference of the tub, a drum rotatably provided within the tub, the drum having an opening on a lateral side of the drum to communicate with the laundry loading entrance of the tub, a motor assembly provided next to one side of the drum to rotate the drum, and a suspension assembly provided to support a weight of the drum and attenuate vibration of the drum.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Na Eun Kim, Jin Woong Kim, Young Hwan Park, Jae Won Chang