US20060075791A1 - Washing machine - Google Patents

Washing machine Download PDF

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Publication number
US20060075791A1
US20060075791A1 US11/191,908 US19190805A US2006075791A1 US 20060075791 A1 US20060075791 A1 US 20060075791A1 US 19190805 A US19190805 A US 19190805A US 2006075791 A1 US2006075791 A1 US 2006075791A1
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United States
Prior art keywords
damper
bracket
hinge
machine
set forth
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.)
Abandoned
Application number
US11/191,908
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English (en)
Inventor
Hyun Seo
Hee Lim
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 LG Electronics Inc filed Critical LG Electronics Inc
Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIM, HEE TAE, SEO, HYUN SEOK
Publication of US20060075791A1 publication Critical patent/US20060075791A1/en
Abandoned 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to a washing machine, and, more particularly, to a washing machine having dampers each of which has one end connected to one side of a drum in a revolute joint fashion for effectively absorbing vibration generated from a driving part of the washing machine.
  • FIG. 1 is a sectional view illustrating the interior structure of a conventional drum type washing machine
  • FIG. 2 is a sectional view taken along line II-II of FIG. 1
  • FIG. 3 is a sectional view illustrating the interior structure of the damper shown in FIG. 1 .
  • the conventional drum type washing machine comprises: a cabinet 1 having a base 1 a and a door 1 b ; a tub 2 fixedly mounted in the cabinet 1 ; a drum 3 rotatably mounted in the tub 2 such that laundry m and washing water are shaken by lifters 3 a ; a motor 4 for rotating the drum 3 ; and springs 5 , dampers 6 and a balancer 7 for attenuating vibration transmitted to the tub 2 .
  • the drum 3 has a plurality of through-holes 3 b , through which washing water received in the tub 2 is introduced into the drum 3 .
  • the lifters 3 a are attached to the inside surface of the drum 3 . As the drum 3 is rotated, the lifters 3 a lift the laundry m together with the washing water in the drum 3 .
  • the tub 2 is spaced a predetermined distance from the inside surface of the cabinet 1 . Opposite sides of the upper end of the tub 2 are connected to the lower surface of the top part of the cabinet 1 via the springs 5 . Also, opposite sides of the lower end of the tub 2 are connected to the upper surface of the base 1 a via the dampers 6 , each of which is hingedly connected to the tub 2 and the base 1 a . Vibration transmitted to the cabinet 1 from the tub 2 is attenuated by the springs 5 and the dampers 6 .
  • the door 1 b of the cabinet 1 is pivotably connected to a front surface id such that the laundry m is put into the drum 3 .
  • the tub 2 and the drum 3 are provided at front surfaces 2 d and 3 d thereof with openings 2 c and 3 c , respectively, which communicate with a hole (not shown) opened by the door 1 b.
  • a gasket 8 for preventing leakage of washing water.
  • the gasket 8 serves to maintain the seal between the inside surface of the cabinet 1 and the front surface 2 d of the tub 2 .
  • the motor 4 is mounted at the rear of the tub 2 for rotating the drum 3 disposed in the tub 2 .
  • the balancer 7 is attached to the drum 3 for balancing the drum 3 .
  • the balancer 7 has a predetermined weight, and therefore, the balancer 7 provides centrifugal force to the drum 3 rotated when a dewatering process is performed such that vibration generated from the drum 3 is attenuated by the centrifugal force.
  • each damper 6 of the conventional washing machine comprises: a cylinder 6 a connected to the outside surface of the tub 2 ; a piston 6 b connected to the base 1 a ; and a frictional ring 6 c disposed between the cylinder 6 a and the piston 6 b for generating damping force caused by frictional force.
  • the cylinder 6 a is hingedly connected to the tub 2 .
  • the connection structure of the cylinder 6 a is accomplished as follows.
  • a hollow part (now shown), which extends in one direction.
  • a rubber bushing 6 d In the hollow part of the cylinder 6 a is inserted a rubber bushing 6 d .
  • a hollow part (not shown) is formed at the end of the piston 6 b , and a bushing 6 d is inserted in the hollow part of the piston 6 b.
  • brackets 9 for fixing the cylinder 6 a and the piston 6 b , respectively.
  • Each of the brackets 9 has a hole (not shown), through which a pin 9 s is inserted.
  • the cylinder 6 a and the piston 6 b perform a relative motion to attenuate vibration and impact transmitted from the tub 2 , and friction is generated at the frictional ring 6 c due to the relative motion of the cylinder 6 a and the piston 6 b .
  • the vibration and the impact transmitted from the tub 2 are attenuated.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a washing machine having dampers that are capable of effectively absorbing vibration and impact generate in several directions.
  • a washing machine comprising: at least one damper disposed between a drive part of the washing machine and a cabinet for performing shock-absorbing operation; a damper bracket fixedly attached to the drive part for transmitting vibration or impact to the at least one damper; and a revolute joint connection unit connected between the at least one damper and the damper bracket.
  • the at least one damper is vertically mounted or inclined.
  • the at least one damper comprises: a piston mechanism connected to the damper bracket via the revolute joint connection unit; a cylinder mechanism connected to the cabinet; a friction member fixed to either the piston mechanism or the cylinder mechanism for generating friction due to a relative motion; and a resilient member for providing a resilient force to the piston mechanism.
  • the revolute joint connection unit comprises: a damper hinge provided at the at least one damper; a bracket hinge provided at the damper bracket such that the bracket hinge is engaged with the damper hinge; and a fixing unit for fixing the damper hinge and the bracket hinge.
  • the fixing unit comprises: a joint pin inserted through the damper hinge and the bracket hinge; and a shock-absorbing member fitted on the outer circumferential surface of the joint pin.
  • the shock-absorbing member is a rubber bushing.
  • the damper hinge is either forcibly inserted into the damper or fixedly attached to the at least one damper by means of a bolt.
  • the bracket hinge is engaged with the damper hinge such that the at least one damper is approximately at a right angle to the damper bracket.
  • the washing machine further comprises: a base bracket mounted at the lower end of the cabinet; a shock-absorbing member attached to the lower end of the at least one damper; and a fixing unit provided at the at least one damper for securely fixing the shock-absorbing member to the at least one damper.
  • a washing machine comprising: a cabinet forming the outer appearance of the washing machine; a tub fixedly mounted in the cabinet; a drive unit including a drum rotatably mounted in the tub for receiving laundry to be washed and a motor for rotating the drum; a bearing housing having a bearing mounted at the tub for supporting the drive unit; at least one damper disposed between the bearing housing and the cabinet for performing shock-absorbing operation; a damper bracket fixedly attached to the bearing housing for transmitting vibration or impact to the at least one damper; and a revolute joint connection unit connected between the at least one damper and the damper bracket.
  • the present invention multi-directional vibration or impact is absorbed by the cooperation of the bracket, the revolute joint connection unit, and the damper. Consequently, the present invention has the effect of more properly attenuating vibration or impact transmitted from the drum.
  • the revolute joint connection unit is mounted in the washing machine.
  • the damper is rotated about the joint pin, and therefore, the shock-absorbing operation is performed by the bushing, which is made of a resilient material, when multi-directional vibration or impact is transmitted to the damper. Consequently, the present invention has the effect of applying the damping force to the multi-directional vibration or impact.
  • the shock-absorbing operation is performed by the resilient force of the bushing disposed at the outer circumferential surface of the lower part of the damper. Consequently, the present invention has the effect of maximizing the damping force in any directions.
  • FIG. 1 is a sectional view illustrating the interior structure of a conventional drum type washing machine
  • FIG. 2 is a sectional view taken along line II-II of FIG. 1 ;
  • FIG. 3 is a sectional view illustrating the interior structure of the damper shown in FIG. 1 ;
  • FIG. 4 is a sectional view illustrating the interior structure of a washing machine according to the present invention.
  • FIG. 5 is an exploded perspective view illustrating a tub of the washing machine according to the present invention.
  • FIG. 6 is a sectional view illustrating a damper of the washing machine according to the present invention.
  • FIG. 7 is a view illustrating an example of the operation of the damper of the washing machine according to the present invention.
  • FIG. 8 is a view illustrating another example of the operation of the damper of the washing machine according to the present invention.
  • FIG. 4 is a sectional view illustrating the interior structure of a washing machine according to the present invention
  • FIG. 5 is an exploded perspective view illustrating a tub of the washing machine according to the present invention
  • FIG. 6 is a sectional view illustrating a damper of the washing machine according to the present invention
  • FIG. 7 is a view illustrating an example of the operation of the damper of the washing machine according to the present invention
  • FIG. 8 is a view illustrating another example of the operation of the damper of the washing machine according to the present invention.
  • the washing machine comprises: a cabinet 10 forming the outer appearance of the washing machine; a tub 20 fixedly mounted in the cabinet 10 while being directly connected to the inside of the cabinet 10 ; a drum 30 rotatably mounted in the tub 20 ; a motor 40 mounted at the rear of the tub 20 for rotating the drum 30 ; a rear gasket 50 for sealing the tub 20 and interrupting transmission of vibration from the drum 30 to the rub 20 ; and dampers 60 mounted at the rear of the drum 30 for attenuating vibration or impact transmitted from the drum 30 .
  • the cabinet 10 is provided at the front surface 11 thereof has with a hole (not shown), which is opened and closed by a door 12 , which is hingedly connected at the front surface 11 of the cabinet 10 . Also, the cabinet 10 has a top cover 14 disposed at the upper surface 13 thereof and a base 16 disposed at the lower surface 15 thereof. The dampers 60 are fixed to the base 16 of the cabinet 10 .
  • the tub 20 comprises: a tub body 22 directly connected to the inside of the front surface 11 of the cabinet 10 such that the tub body 22 communicates with the hole opened and closed by the door 12 ; a tub cover 24 attached to the rear surface of the tub body 22 such that the tub cover 24 surrounds the drum 30 , the tub cover 24 having an opening 23 defined in the center thereof; a tub bracket 26 for closing the opening 23 of the tub cover 24 ; and a bearing housing 28 mounted to the rear surface of the tub bracket 26 for supporting a motor shaft 42 .
  • the tub body 22 and the tub cover 24 are fixedly attached to each other by means of screws 25 , which are inserted through fixing holes 22 a and 24 a formed at the outer circumference of the tub body 22 and the tub cover 24 , respectively.
  • the opening 23 of the tub cover 24 is sealed by the tub bracket 26 and the rear gasket 50 , which will be described below in detail.
  • the bearing housing 28 is fixedly attached to the rear surface of the tub bracket 26 by means of screws 25 .
  • the bearing housing 28 has a bearing (not shown) for supporting the motor shaft 42 such that the motor shaft 42 can be smoothly rotated. Consequently, the motor shaft 42 is rotated while being supported by the bearing.
  • the rear gasket 50 serves to absorb vibration or impact transmitted to the tub body 22 from the tub bracket 26 when a washing or dewatering operation is performed.
  • the rear gasket 50 is made of a resilient material that can be compressed or expanded. Furthermore, the rear gasket 50 is disposed along the outer circumference of the tub bracket 26 for sealing the opening 23 .
  • the motor 40 is mounted at the rear of the bearing housing 28 .
  • the motor shaft 42 is fixedly attached to the rear surface of the drum 30 through the bearing housing 28 and the tub bracket 26 .
  • the drum 30 is a vibrating body rotated by the motor shaft 42 , which is driven when electric current is supplied to the motor 20 .
  • a plurality of lifts 32 for lifting laundry in the drum 30 .
  • a liquid balancer 34 for balancing the drum 30 to prevent the drum from being vibrated.
  • the dampers 60 are disposed between the drum 30 and the base 16 .
  • Each of the dampers 60 is connected to a damper bracket 61 mounted at the bearing housing 28 and a base bracket 62 mounted at the base 16 , respectively.
  • One of the dampers 60 is inclined to attenuate horizontal component force or inclined vibration or impact, and the other dampers 60 are vertically mounted to attenuate vertical vibration or impact.
  • each of the dampers 60 comprises: a piston mechanism 80 connected to the damper bracket 61 ; a cylinder mechanism 90 connected to the base bracket 62 ; a revolute joint connection unit for connecting the damper bracket 61 and the piston mechanism 80 ; a friction member 74 fixed to either the piston mechanism 80 or the cylinder mechanism 90 for generating friction due to a relative motion; and a resilient member 76 for providing a resilient force to the piston mechanism 80 .
  • the piston mechanism 80 comprises: a piston rod 82 connected to the damper bracket 61 ; a supporting plate 83 connected to one end of the piston rod 82 , the supporting plate 83 having an increased radius; a damper hinge 77 fixed to the supporting plate 83 in the longitudinal direction of the piston rod 82 while being in tight contact with the supporting plate 83 by forcibly inserting a protrusion 83 a protruded from the supporting plate 83 into an insertion groove 77 a formed at the damper hinge 77 ; a bolt 81 inserted through the protrusion 83 a and the insertion groove 77 a for more securely fixing the piston rod 82 to the damper hinge 77 ; and a piston 84 connected to the other end of the piston rod 82 .
  • the protrusion 83 a of the supporting plate 83 is forcibly inserted into the insertion groove 77 a of the damper hinge 77 .
  • the supporting plate 83 may have an insertion groove while the damper hinge 77 may have a protrusion such that the protrusion of the damper hinge 77 is forcibly inserted into the insertion groove of the supporting plate 83 .
  • the bolt 81 may also be inserted through the protrusion of the damper hinge 77 and the insertion groove of the supporting plate 83 to more securely fix the piston rod 82 to the damper hinge 77 .
  • One end of the damper bracket 61 is fixed to the bearing housing 28 , and the other end of the damper bracket 61 is bent such that the other end of the damper bracket 61 is parallel with the lower end of the tub 20 .
  • a bracket hinge 78 which has a hole (not shown) communicating with a hole (not shown) of the damper hinge 77 such that the bracket hinge 78 is connected to the damper hinge 77 in a revolute joint fashion.
  • the damper hinge 77 may be engaged with the bracket hinge 78 either while the damper hinge 77 surrounds the bracket hinge 78 or while the bracket hinge 78 surrounds the damper hinge 77 .
  • the damper hinge 77 and the bracket hinge 78 are securely attached to each other by mean of a fixing unit, which comprises: a joint pin 85 inserted through the hole formed at the damper hinge 77 and the hole formed at the bracket hinge 78 ; and a cylindrical shock-absorbing member fitted on the outer circumferential surface of the joint pin 85 .
  • the shock-absorbing member is a bushing 79 , which is made of a resilient material, such as rubber or synthetic resin. While the damper 60 is at a right angle to damper bracket 61 , the joint pin 85 , on which the bushing 79 is fitted, is forcibly inserted into the holes of the damper hinge 77 and the bracket hinge 78 . Consequently, the damper 60 is securely fixed to the damper bracket 61 while the bushing 79 is compressed.
  • the friction member 74 is disposed at the outer circumferential surface of the piston 84 for generating friction on the inner circumferential surface of a cylinder body 92 of the cylinder mechanism 90 .
  • the friction member 74 is made of sponge, rubber, or synthetic resin.
  • the cylinder mechanism 90 comprises: a damper holder 96 , through which the piston rod 82 is inserted; a cylinder body 92 forming a moving channel of the piston 84 , the cylinder body 92 having one end 92 a partially fitted on the damper holder 96 ; and a body cap 94 securely attached to the other end 92 b of the cylinder body 92 for sealing the cylinder body 92 .
  • a body cap rod 95 which extends in the direction in which the piston 84 is moved.
  • the tip end 95 a of the body cap rod 95 is protruded outward through a shock-absorbing member 72 .
  • a fixing unit 95 b and 95 c At the tip end 95 a of the body cap rod 95 are provided a fixing unit 95 b and 95 c , by which the shock-absorbing member 72 is securely fixed to the body cap 94 .
  • the fixing unit 95 b and 95 c comprises: a thread part 95 b formed at the tip end 95 a of the body cap rod 95 ; and a nut 95 c threadedly fitted on the thread part 95 b.
  • the piston mechanism 80 which is moved due to vibration or impact, is supported by the cylinder mechanism 90 in a two-point supporting fashion. Specifically, the piston rod 82 is supported by the damper holder 96 , and at the same time, the piston 84 is moved in the cylinder body 92 while the piston 84 is supported by the inner wall of the cylinder body 92 . Consequently, the piston 84 is smoothly moved in the cylinder body 92 .
  • the shock-absorbing member 72 is a cylindrical bushing, which is made of a resilient material, such as rubber or synthetic resin.
  • the cylindrical bushing 72 has an insertion hole 72 a formed along the center thereof, through which the body cap rod 95 is inserted, and an engaging groove 72 b formed at the circumferential surface thereof such that the base bracket 62 is engaged in the engaging groove 72 b.
  • the bushing 72 is divided into two pieces such that the bushing 72 surrounds the upper and lower sides of the base bracket 62 . At the upper and lower ends of the bushing 72 are disposed washers 73 for compressing the bushing 72 , respectively.
  • the end of the base bracket 62 is connected to the shock-absorbing member 72 through the engaging groove 72 b .
  • a latching protrusion 62 a At the base bracket 62 engaged in the engaging groove 72 b is formed a latching protrusion 62 a , which is bent from the base bracket 62 .
  • the washers 73 are located at opposite ends of the shock-absorbing member 72 , i.e., at the upper and lower ends of the shock-absorbing member 72 , for protecting the bushing 72 , which is made of a resilient material.
  • only washer 73 located at the lower end of the shock-absorbing member 72 i.e., the lower washer 73 , is indicated.
  • the tip end 95 a of the body cap rod 95 is inserted through the lower washer 73 .
  • Pressure is applied to the lower washer 73 by the nut 95 c threadedly fitted on the thread part 95 b such that the busing 72 is compressed.
  • the bushing 72 is located at the lower end of the body cap 94 , and the lower washer 73 is located at the lower end of the bushing 72 .
  • the nut 95 c is threadedly fitted onto the tip end 95 a of the body cap rod 95 , which is inserted through the bushing 72 and the lower washer 73 . Consequently, the bushing 72 is securely fixed to the body cap 94 .
  • the base bracket 62 is fixed to the side of the bushing 72 .
  • shock generated due to the relative motion between the base bracket 62 and the body cap rod 95 is absorbed by the bushing 72 .
  • the resilient member 76 disposed in the cylinder body 92 is a coil spring for providing a resilient force to the piston 84 .
  • the resilient member 76 applies a resilient force to the piston 84 , in the direction in which the friction is generated, to generate a damping force.
  • the resilient member 76 may be omitted according to circumstances. It is preferable, however, that the resilient member 76 is used when a relatively large damping force is to be applied to the piston 84 .
  • a lubricant such as grease, by which air is effectively prevented from being introduced into or discharged from the cylinder body 92 while the piston rod 82 is moved.
  • the cylinder body 92 is sealed by the damper holder 96 and the body cap 94 .
  • the piston 84 is moved in the cylinder body 92 to compress air.
  • the air compressed by the piston generates the air damping.
  • the damper 60 may be constructed without the provision of the resilient member according to circumstances. Furthermore, the piston mechanism 80 may be mounted at the base side, and the cylinder mechanism 90 may be mounted at the drum side.
  • the piston 84 which is vertically moved, is applied to the resilient force generated by the coil spring 76 , and therefore, the resilient force generated by the coil spring 76 acts as the damping force to decrease the vertical force. Since the cylinder body 92 is sealed, the pressure of air compressed by the piston 84 acts as the damping force to attenuate the vibration or the impact transmitted through the piston 84 .
  • the body cap 94 is supported by the shock-absorbing member 72 mounted at the lower end of the body cap 94 . Consequently, the shock-absorbing member 72 is vertically compressed or expanded to absorb the force transmitted through the cylinder mechanism 90 .
  • the washing machine according to the present invention has the following effects.
  • the revolute joint connection unit is mounted in the washing machine.
  • the damper is rotated about the joint pin, and therefore, the shock-absorbing operation is performed by the bushing, which is made of a resilient material, when multi-directional vibration or impact is transmitted to the damper. Consequently, the present invention has the effect of applying the damping force to the multi-directional vibration or impact.
  • the shock-absorbing operation is performed by the resilient force of the bushing disposed at the outer circumferential surface of the lower part of the damper. Consequently, the present invention has the effect of maximizing the damping force in any directions.
  • the present disclosure relates to subject matter contained in Korean Application No. 10-2004-0079939, filed on Oct. 7, 2004, the contents of which are herein expressly incorporated by reference in its entirety.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Vibration Prevention Devices (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
US11/191,908 2004-10-07 2005-07-29 Washing machine Abandoned US20060075791A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040079939A KR100755835B1 (ko) 2004-10-07 2004-10-07 세탁기
KR2004-79939 2004-10-07

Publications (1)

Publication Number Publication Date
US20060075791A1 true US20060075791A1 (en) 2006-04-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/191,908 Abandoned US20060075791A1 (en) 2004-10-07 2005-07-29 Washing machine

Country Status (5)

Country Link
US (1) US20060075791A1 (zh)
EP (1) EP1645678A3 (zh)
JP (1) JP2006102487A (zh)
KR (1) KR100755835B1 (zh)
CN (1) CN1757815B (zh)

Cited By (17)

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US20060254321A1 (en) * 2005-05-11 2006-11-16 Lg Electronics Inc. Washing machine
US20070039359A1 (en) * 2005-08-18 2007-02-22 Lg Electronics Inc. Abnormal vibration sensing apparatus and washing machine having the same
US20070289339A1 (en) * 2006-06-09 2007-12-20 Lim Hee T Mechanical apparatus for washing/drying
US20080155761A1 (en) * 2006-12-29 2008-07-03 Ganeral Electric Company Systems and methods for controlling operation of a washing machine
US20110041563A1 (en) * 2009-08-24 2011-02-24 Samsung Electroincs Co., Ltd. Washing machine and outer tub supporting structure thereof
US20120011900A1 (en) * 2009-05-28 2012-01-19 Kwon Ig Geun Laundry machine
US20120047970A1 (en) * 2009-05-28 2012-03-01 Kwon Ig Geun Laundry machine
US20130014546A1 (en) * 2011-02-16 2013-01-17 Panasonic Corporation Drum-type washing machine
US9051679B2 (en) 2009-05-28 2015-06-09 Lg Electronics Inc. Laundry machine
US9194073B2 (en) 2009-05-28 2015-11-24 Lg Electronics Inc. Laundry machine having a drying function
US9284677B2 (en) 2009-05-28 2016-03-15 Lg Electronics Inc. Laundry machine
US9447534B2 (en) 2008-12-30 2016-09-20 Lg Electronics Inc. Laundry machine
US9828715B2 (en) 2009-05-28 2017-11-28 Lg Electronics Inc. Laundry maching having a drying function
US9850614B2 (en) 2015-03-19 2017-12-26 Whirlpool Corporation Machine for washing or drying laundry
US20180106539A1 (en) * 2016-10-14 2018-04-19 Gala Industries, Inc. Centrifugal pellet dryer
WO2018177097A1 (zh) * 2017-03-27 2018-10-04 青岛海尔滚筒洗衣机有限公司 减震系统和包括该减震系统的洗衣机
CN113550122A (zh) * 2021-08-03 2021-10-26 宁波金帅集团有限公司 一种多功能全自动洗衣机

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100464054B1 (ko) 2002-12-27 2005-01-03 엘지전자 주식회사 일체형 캐비넷/터브를 구비한 드럼 세탁기
KR100634802B1 (ko) 2004-07-20 2006-10-16 엘지전자 주식회사 드럼 세탁기
US7536882B2 (en) † 2006-03-29 2009-05-26 Lg Electronics Inc. Drum type washing machine
KR100893867B1 (ko) * 2007-06-29 2009-04-20 엘지전자 주식회사 드럼세탁기

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KR100755835B1 (ko) 2007-09-07
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KR20060031057A (ko) 2006-04-12
JP2006102487A (ja) 2006-04-20
EP1645678A3 (en) 2006-07-05

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