EP3504371B1 - Waschmaschine - Google Patents

Waschmaschine Download PDF

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Publication number
EP3504371B1
EP3504371B1 EP17872523.0A EP17872523A EP3504371B1 EP 3504371 B1 EP3504371 B1 EP 3504371B1 EP 17872523 A EP17872523 A EP 17872523A EP 3504371 B1 EP3504371 B1 EP 3504371B1
Authority
EP
European Patent Office
Prior art keywords
tub
position guide
guide apparatus
cylinder
stopper
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.)
Active
Application number
EP17872523.0A
Other languages
English (en)
French (fr)
Other versions
EP3504371A4 (de
EP3504371A1 (de
Inventor
Ju Bum HAN
Dong Ha Jung
Jeong Hoon Kang
Kwan Woo Hong
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority claimed from PCT/KR2017/012929 external-priority patent/WO2018093139A1/en
Publication of EP3504371A4 publication Critical patent/EP3504371A4/de
Publication of EP3504371A1 publication Critical patent/EP3504371A1/de
Application granted granted Critical
Publication of EP3504371B1 publication Critical patent/EP3504371B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • 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
    • 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
    • D06F37/24—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 vertical 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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

Definitions

  • Embodiments of the present disclosure relate to a washing machine capable of limiting movements of a tub and preventing vibrations of the tub from being transferred to a cabinet.
  • a washing machine includes a cabinet forming an outer appearance of the washing machine, a tub disposed in the inside of the cabinet and storing water, and a washing drum disposed in the inside of the tub and accommodating laundry to wash the laundry by a water current generated according to rotations of a pulsator installed on the bottom of the washing drum.
  • the washing machine performs a washing course to separate dirt from laundry, a rinsing course to rinse washed laundry, and a dehydration course to dehydrate wet laundry.
  • the washing drum rotates at high speed, and may perform precession according to a distribution of laundry contained in the washing drum. Since the precession of the washing drum causes vibrations of the tub, a suspension apparatus is generally installed between the tub and the cabinet in order to prevent vibrations of the tub from being transferred to the cabinet.
  • US 2015/020551 A1 describes a washing machine with a piston and a cylinder, wherein the piston and the cylinder are arranged in such a way, that the vibration of the outer tub leads to friction between the piston and the cylinder, which results in a reduction of the vibration of the outer tub.
  • a washing machine having a structure capable of limiting a movement range of a tub according to vibrations, and preventing vibrations of the tub from being transferred to a cabinet.
  • a washing machine includes a cabinet; a tub disposed in the inside of the cabinet; at least one suspension apparatus configured to reduce vibrations of the tub, and to connect the tub to the cabinet such that the tub is supported on the cabinet; and a position guide apparatus having one end connected to the at least one suspension apparatus, and the other end connected to the tub, and configured to limit a movement range in horizontal direction of the tub.
  • the position guide apparatus includes a cylinder having an inside space; and a stopper having at least one portion located in the inside space of the cylinder, and the remaining portion located outside the cylinder.A catching portion is formed at an end of the at least one portion of the stopper located in the inside space of the cylinder, and a suspension bar coupling portion is formed at one end of the remaining portion of the stopper located outside the cylinder, wherein the suspension bar coupling portion is connected to a suspension bar included in the suspension apparatus.
  • the stopper includes a first absorption member disposed adjacent to the catching portion, and a second absorption member disposed adjacent to the suspension bar coupling portion, or the stopper includes a first absorption member disposed on one surface with respect to the catching portion, and a second absorption member disposed on the opposite surface with respect to the catching portion.
  • One end of the cylinder may further include a stopper inserting hole along which a stopper moves, and the other end of the cylinder may further include a tub fixing hole, wherein a tub fixing portion may be inserted into the tub fixing hole such that both ends of the tub fixing portion may be rotatably coupled with a position guide apparatus coupling portion formed in the outer surface of the tub.
  • the tub fixing portion may be inserted into the cylinder such that the cylinder may be rotatable on the tub fixing portion as a rotation shaft.
  • the cylinder may be movable between a first position at which the cylinder contacts the first absorption member, and a second position at which the cylinder contacts the second absorption member.
  • the suspension bar coupling portion may include a first member having a first accommodating space into which the stopper may be inserted, and a second member having a second accommodating space into which the suspension bar may be inserted.
  • the second member may further include a protrusion
  • the first member may further include a groove into which the protrusion of the second member may be inserted so that the second member may be coupled with the first member to be rotatable with respect to the first member using the protrusion as a rotation shaft.
  • the second accommodating space may be movable along the suspension bar.
  • the position guide apparatus may limit a distance between the suspension apparatus and the tub to a predetermined distance.
  • the washing machine which includes the cabinet, the tub disposed in the inside of the cabinet, the at least one suspension apparatus configured to reduce vibrations of the tub and connecting the tub to the cabinet such that the tub is supported on the cabinet, and the position guide apparatus whose one end is connected to the at least one suspension apparatus and whose other end is connected to the tub to limit a movement range of the tub, can limit movements of the tub, and prevent vibrations generated from the tub from being transferred to the cabinet.
  • the expressions 'first' or 'second' may modify the names of various components irrespective of sequence and/or importance, not limiting the components. These expressions may be used to distinguish one component from another component. For example, when it is said that a component (e.g., a first component) is 'operatively or communicatively coupled with/to' or 'connected to' another component (e.g., a second component), it should be understood that the one component is connected to the other component directly or through any other component (e.g., a third component).
  • a component e.g., a first component
  • another component e.g., a second component
  • the term 'configured to' as used herein may be replaced with, for example, the term 'suitable for' 'having the capacity to', 'designed to', 'adapted to', 'made to', or 'capable of under circumstances.
  • the term 'configured to' may not necessarily mean 'specifically designed to' in hardware. Instead, the term 'configured to' may mean that a device may mean 'capable of with another device or part.
  • 'a processor configured to execute A, B, and C' may mean a dedicated processor (e.g., an embedded processor) for performing the corresponding operations or a generic-purpose processor (e.g., a central processing unit (CPU) or an application processor (AP)) for performing the corresponding operations.
  • a dedicated processor e.g., an embedded processor
  • a generic-purpose processor e.g., a central processing unit (CPU) or an application processor (AP)
  • FIG. 1 is a perspective view of a washing machine according to an embodiment of the present disclosure.
  • a cabinet 12 forming an outer appearance of a washing machine 1 may be in the shape of a nearly rectangular parallelepiped having an open top portion and an open bottom portion, and may include left and right side panels 12b and 12d, a front panel 12a, and a rear panel 12c.
  • the upper portion of the cabinet 12 may be coupled with a top cover 14 having an opening to enable a user to put laundry into a washing drum (not shown), and a door 10 for opening or closing the opening may be coupled with the top cover 14.
  • a control panel 11 for enabling the user to input operation and control settings of the washing machine 1 may be mounted on one side of the top cover 14.
  • a portion indicated by an arrow direction of FIG. 1 is assumed to be a front portion of the cabinet 12.
  • FIG. 2 is a cross-sectional view of the washing machine according to the embodiment of the present disclosure.
  • a tub 21 in which washing water is stored, a washing drum 22 rotatably disposed in the inside of the tub 21, and a pulsator 23 disposed in the inside of the washing drum 22 to generate a water current may be installed.
  • an opening 24 may be formed to enable a user to put laundry into the washing drum 22.
  • the opening 24 may be opened or closed by the door 10 mounted on the upper portion of the cabinet 12.
  • the tub 21 may be supported on the cabinet 12 by a suspension apparatus 50.
  • a water-supply pipe 25 may be installed to supply washing water into the tub 21.
  • One end of the water-supply pipe 25 may be connected to an external water-supply source, and the other end of the water-supply pipe 25 may be connected to a detergent supply apparatus 26.
  • Water supplied through the water-supply pipe 25 may be supplied into the tub 21 together with a detergent via the detergent supply apparatus 26.
  • the water-supply pipe 25 may include a water-supply valve 27 to control supply of water.
  • the washing drum 22 may be in the shape of a cylinder whose top portion opens, and a plurality of dehydrating holes may be formed in the side of the washing drum 22.
  • a balancer 29 may be disposed so that the washing drum 22 can stably rotate upon high-speed rotation.
  • a motor 30 to generate a driving force for rotating the washing drum 22 and the pulsator 23, and a power transfer apparatus 31 to transfer the driving force generated by the motor 30 to both or one of the washing drum 22 and the pulsator 23 may be disposed.
  • the washing drum 22 may be connected to a hollow dehydrating shaft 32, and a washing shaft 33 installed in the cavity of the dehydrating shaft 32 may be connected to the pulsator 23 through a washing shaft connecting element (not shown).
  • the motor 30 may transfer a driving force to all or one of the washing drum 22 and the pulsator 23 according to elevating operation of the power transfer apparatus 31.
  • the power transfer apparatus 31 may include an actuator 34 to generate a driving force for transferring power, a rod portion 35 to move linearly according to operation of the actuator 34, and a clutch portion 36 connected to the rod portion 35 to rotate according to operation of the rod portion 35.
  • a drain outlet 37 may be formed to discharge washing water stored in the tub 21, and the drain outlet 37 may be connected to a first drain pipe 38.
  • a drain valve 39 for controlling drainage may be installed in the first drain pipe 38.
  • An outlet of the drain valve 39 may be connected to a second drain pipe 40 for discharging washing water to the outside.
  • FIG. 3 is a perspective view showing a tub, a suspension apparatus, and a position guide apparatus of the washing machine according to the embodiment of the present disclosure
  • FIG. 4 is a top view showing the tub, the suspension apparatus, and the position guide apparatus of the washing machine according to the embodiment of the present disclosure.
  • the suspension apparatus 50 is disposed in the inside of the cabinet (for example, the cabinet 12 of FIG. 1 ) in order to reduce vibrations of the tub 21. More specifically, the suspension apparatus 50 may be coupled with a first holder 51 disposed on an inner upper surface of the cabinet 12 and a second holder 52 disposed on an outer lower surface of the tub 21 to cushion vibrations and impacts transferred from the tub 21.
  • the first holder 51 and the second holder 52 may be disposed at different positions.
  • the suspension apparatus 50 may include a suspension cap 53, a suspension bar 54, and a spring 55, although not limited to these.
  • the suspension apparatus 50 may add other components or omit some components in order to improve an effect of cushioning vibrations or impacts transferred from the tub 21.
  • the spring 55 may be disposed in a lower portion of the suspension bar 54, and contracted or relaxed by vibrations and impacts transferred from the tub 21, thereby cushioning and reducing the vibrations and impacts.
  • the suspension apparatus 50 may function to reduce all of vibrations generated in a vertical direction (Z-axis) and vibrations generated in a horizontal direction (XY plane) according to an installation angle. Since vector components in the vertical direction are generally greater than in the horizontal direction, the suspension apparatus 50 may have an effect of mainly reducing vibrations generated in the vertical direction.
  • One end of the position guide apparatus 100 may be installed on the tub 21, and the other end of the position guide apparatus 100 may be connected to an area of the suspension bar 54.
  • the suspension apparatus 50 may be installed nearly vertically to increase the capacity of the tub 21 in the inside of the cabinet 12. Thereby, a range of movement on the XY plane can be reduced even when the tub 21 becomes close to the cabinet 12, so that the position guide apparatus 100 can prevent the tub 21 from contacting the cabinet 12 or prevent the generation of noise.
  • FIG. 5 shows the position guide apparatus of the washing machine according to the embodiment of the present disclosure
  • FIG. 6 is a cross-sectional view of the position guide apparatus of the washing machine according to the embodiment of the present disclosure.
  • the position guide apparatus 100 may include a tub fixing portion 110, a cylinder 120, an absorption member 140, and a suspension bar coupling portion 150.
  • the tub fixing portion 110 may connect the cylinder 120 of the position guide apparatus 100 to the tub 21.
  • the tub fixing portion 110 may be inserted in a tub fixing portion inserting hole 121 formed in one end of the cylinder 120. If the tub fixing portion 110 is inserted in the cylinder 120, the cylinder 120 can rotate on the tub fixing portion 110 as a rotation shaft.
  • the tub fixing portion inserting hole 121 into which the tub fixing portion 110 can be inserted may be formed, and in the other end of the cylinder 120, a stopper inserting hole 122 into which a stopper 130 can be inserted may be formed.
  • the tub fixing portion inserting hole 121 may be formed along the Z axis, and the stopper inserting hole 122 may be formed on the XY plane that is vertical to the Z axis.
  • the positions of the tub fixing portion inserting hole 121 and the stopper inserting hole 122 are not limited to these, and the tub fixing portion inserting hole 121 and the stopper inserting hole 122 may be formed at any other positions.
  • the cylinder 120 has a space 123 in which at least one portion of the stopper 130 is can be located.
  • the space 123 in which at least one portion of the stopper 130 is located may extend along an X-axis.
  • At least one portion of the stopper 130 is located in the inside of the cylinder 120, and the remaining portion of the stopper 130 is located outside the cylinder 120.
  • the stopper 130 may move linearly along the inside space 123 of the cylinder 120.
  • a catching portion 131 is formed in an end of the portion of the stopper (130) located in the inside of the cylinder 120.
  • the catching portion 131 prevents the stopper 130 from getting out of the cylinder 120, when the stopper 130 moves back and forth in the inside space 123 of the cylinder 120.
  • the suspension bar coupling portion 150 may include a first member 151 having a first accommodating space 152 into which the stopper 130 can be inserted, and a second member 155 having a second accommodating space 156 into which the suspension bar 54 can be inserted.
  • the end of the stopper 130 located outside the cylinder 120 may be inserted in the first accommodating space 152 of the first member 151 of the suspension bar coupling portion 150.
  • the first member 151 may include a hole 153 into which the second member 155 can be inserted.
  • a protrusion 157 of the second member 155 may be coupled with the hole 153 of the first member 151. In this case, the second member 155 may rotate on the protrusion 157.
  • the second member 155 may form the second accommodating space 156.
  • the suspension bar 54 may be inserted into the second accommodating space 156. In the state in which the suspension bar 54 is inserted in the second accommodating space 156, the suspension bar 54 may move along the Z-axis direction.
  • the stopper 130 may include a first absorption member 140a and a second absorption member 140b.
  • the first absorption member 140a may be disposed adjacent to the catching portion 131, and the second absorption member 140b may be disposed adjacent to the suspension bar coupling portion 150.
  • the absorption member 140 may be made of, for example, rubber or silicon. The absorption member 140 may reduce noise that is generated when the cylinder 120 moves linearly to contact the catching portion 131 located at one end of the stopper 130 or the suspension bar coupling portion 150 located at the other end of the stopper 130.
  • a situation in which the first absorption member 140a contacts the inner wall of the cylinder 120 may be a case in which the portion of the stopper 130 located inside the cylinder 120 is drawn outside the cylinder 120 so that the position guide apparatus control apparatus 100 lengthens.
  • a situation in which the second absorption member 140b contacts the outer wall of the cylinder 120 may be a case in which the other portion of the stopper 130 located outside the cylinder 120 is pushed into the inside of the cylinder 120 so that the position guide apparatus 100 shortens.
  • the cylinder 120 may move between a first position at which the position guide apparatus 100 lengthens and a second position at which the position guide apparatus 100 shortens.
  • a length to which the cylinder 120 can move according to a movement of the tub 21 may be decided according to the inside space 123 of the cylinder 120 and a distance between the absorption members 140a and 140b disposed at both ends of the stopper 130.
  • FIGS. 7A , 7B , 8A , and 8B are views for describing a situation in which the position guide apparatus lengthens according to a movement of the tub generated in the washing machine according to the embodiment of the present disclosure.
  • the tub 21 may include at least one position guide apparatus 100 on the outer surface.
  • the washing machine may include four position guide apparatuses 100a, 100b, 100c, and 100d.
  • the four position guide apparatuses 100a, 100b, 100c, and 100d may be installed at intervals of about 90 degrees on the outer surface of the tub 21.
  • one end of each position guide apparatus 100 may be coupled with the tub 21 in such a way to be rotatable on the Z-axis, and the other end of the position guide apparatus 100 may be coupled with the suspension bar 54 in such a way to be movable along the suspension bar 54.
  • the position guide apparatus 100 may be positioned in a direction that is similar to a tangential direction on the outer side surface of the tub 21.
  • the tub 21 may move in left and right directions (on the XY plane), or roll on the Z-axis.
  • the washing machine 1 may rotate the washing drum 22.
  • the washing machine 1 may increase revolution per minute (RPM) of the washing drum 22 gradually.
  • RPM revolution per minute
  • the washing machine 1 may increase the RPM of the washing drum 22 from 0rpm to 800rpm.
  • the RPM of the washing drum 22 is not limited to these, and the RPM of the washing drum 22 may be greater or smaller than 800 rpm according to the type of the washing machine 1.
  • a section for which the washing machine 1 gradually increases the RPM of the washing drum 22 may be defined as a transient section.
  • the tub 21 may perform six motions.
  • the six motions may include motions in the X-axis, Y-axis, and Z-axis directions and rotational motions on the X-axis, Y-axis, and Z-axis.
  • the tub 21 may perform left-right motions moving in the left and right directions on the XY plane. Also, if the RPM of the washing drum 22 reaches about 250rpm, the tub 21 may perform rolling on the Z-axis.
  • the motions of the tub 21 generated according to the rotation of the washing drum 22 are not limited to these, and the tub 21 may perform various motions during the transient section.
  • the tub 21 may move in a positive (+) X-axis direction.
  • the position guide apparatuses 100a, 100b, 100c, and 100d may lengthen or shorten according to their positions.
  • the first position guide apparatus 100a may lengthen, and the third position guide apparatus 100c may shorten.
  • the second position guide apparatus 100b and the fourth position guide apparatus 100d may be maintained at their positions similarly to the state shown in FIG. 7A .
  • lengths to which the position guide apparatuses 100a and 100c lengthen and shorten may vary according to the moving direction of the tub 21.
  • the position guide apparatus 100a may lengthen according to a movement of the tub 21. That is, if the cylinder 120 moves in the positive (+) X-axis direction, a portion of the stopper 130 located in the inside of the cylinder 120 may be drawn to the outside of the cylinder 120.
  • the first absorption member 140a may contact the inner side surface of the cylinder 120. Accordingly, the cylinder 120 cannot move any longer.
  • the first absorption member 140a may reduce noise due to an impact that is generated when the stopper 130 contacts the inner side surface of the cylinder 120.
  • the tub 21 cannot move in the positive (+) X-axis direction any longer. As such, the movement of the tub 21 on the XY plane may be limited by the position guide apparatus 100.
  • FIGS. 9A , 9B , 10A , and 10B are views for describing a situation in which the position guide apparatus shortens according to a movement of the tub generated in the washing machine according to the embodiment of the present disclosure.
  • the washing machine may include four position guide apparatuses 100a, 100b, 100c, and 100d.
  • the four position guide apparatuses 100a, 100b, 100c, and 100d may be installed at intervals of about 90 degrees on the outer surface of the tub 21.
  • One end of each position guide apparatus 100 may be coupled with the tub 21 in such a way to be rotatable on the Z-axis, and the other end of the position guide apparatus 100 may be coupled with the suspension bar 54 in such a way to be movable along the suspension bar 54.
  • the tub 21 may move in left and right directions (on the XY plane), or roll on the Z-axis.
  • the washing machine (for example, the washing machine 1 of FIG. 1 ) starts a dehydration course, the washing machine 1 may rotate the washing drum 22. If the washing drum 22 rotates, the tub 21 may perform six motions.
  • the six motions may include motions in the X-axis, Y-axis, and Z-axis directions and rotational motions on the X-axis, Y-axis, and Z-axis.
  • the tub 21 may perform left-right motions moving in the left and right directions on the XY plane. Also, if the RPM of the washing drum 22 reaches about 250rpm, the tub 21 may roll on the Z-axis.
  • the tub 21 may move in a negative (-) X-axis direction.
  • the position guide apparatuses 100a to 100d may lengthen or shorten according to their positions.
  • the first position guide apparatus 100a may shorten, and the third position guide apparatus 100c may lengthen.
  • the second position guide apparatus 100b and the fourth position guide apparatus 100d may be maintained at their positions similarly to the state shown in FIG. 9A . That is, the position guide apparatuses 100a and 100c may lengthen or shorten according to the moving direction of the tub 21.
  • the position guide apparatus 100a may shorten according to a movement of the tub 21. That is, if the cylinder 120 moves in the negative (-) X-axis direction, a portion of the stopper 130 located outside the cylinder 120 may be pushed into the inside of the cylinder 120.
  • the second absorption member 140b may contact the outer side surface of the cylinder 120. Accordingly, the cylinder 120 cannot move any longer.
  • the second absorption member 140b can reduce noise due to an impact that is generated when the stopper 130 contacts the outer side surface of the cylinder 120.
  • the tub 21 cannot move in the negative (-) X-axis direction any longer. In this way, the movement of the tub 21 on the XY plane may be limited by the position guide apparatus 100.
  • FIG. 11 is a graph for comparing a case in which the washing machine according to the embodiment includes the position guide apparatus to a case in which the washing machine includes no position guide apparatus.
  • the X-axis represents a case 1110 in which the position guide apparatus is installed and a case 1120 in which no position guide apparatus is installed
  • the Y-axis represents displacements of the tub (for example, the tub 21 of FIG. 2 ).
  • the graph 1100 shows results of measurement through an experiment of increasing the RPM of the washing drum 22 from 0rpm to 800rpm after installing a weight of 1.0kg inside the washing drum 22.
  • the tub 21 in the case 1120 in which no position guide apparatus is installed, the tub 21 may move to a distance of 31.80mm in the left and right directions. In the case 1110 in which the position guide apparatus is installed, the tub 21 may move to a distance of 24.06mm in the left and right directions. Compared to the case 1120 in which no position guide apparatus is installed, the movement distance of the tub 21 may be shortened by 7.74mm in the left and right directions, resulting in a reduction rate of movement of 24.3%.
  • the movement of the tub 21 according to the rotation of the washing machine 22 can be reduced by the position guide apparatus 100 described above.
  • FIGS. 12A and 12B are views for describing a situation in which the position guide apparatus prevents vibrations of the tub from being transferred to the cabinet in the washing machine according to the embodiment of the present disclosure.
  • the washing machine may include four position guide apparatuses 100a, 100b, 100c, and 100d.
  • the four position guide apparatuses 100a, 100b, 100c, and 100d may be installed at intervals of about 90 degrees on the outer surface of the tub 21.
  • one end of each position guide apparatus 100 may be coupled with the tub 21 in such a way to be rotatable on the Z-axis, and the other end of the position guide apparatus 100 may be coupled with the suspension bar 54 in such a way to be movable along the suspension bar 54.
  • the tub 21 may move in the left and right directions, or roll on the Z-axis.
  • the movement of the tub 21 may be reduced.
  • a section for which the washing drum 22 is maintained at constant RPM after a transient section elapses may be defined as, for example, a steady section.
  • a phenomenon in which the tub 21 moves in the left and right directions may be reduced, however, vibrations generated from the tub 21 may be transferred to the cabinet (for example, the cabinet 12 of FIG. 1 ) so that the cabinet 12 may vibrate.
  • the position guide apparatus 100 may move the stopper 130 located in the inside of the cylinder 120 to prevent vibrations generated from the tub 21 from being transferred to the cabinet 12.
  • the cylinder 120 may move along the X-axis without contacting either the first absorption member 140a or the second absorption member 140b so as not to transfer vibrations generated from the tub 21 to the suspension bar 54. Accordingly, the position guide apparatus 100 may not transfer vibrations generated from the tub 21 to the cabinet 12 connected to the suspension bar 54.
  • FIG. 13 is a graph for comparing a case in which the washing machine according to the embodiment includes the position guide apparatus to a case in which the washing machine includes no position guide apparatus.
  • the X-axis represents cases 1320, 1340, and 1360 in which the position guide apparatus is installed according to locations of the cabinet (for example, the cabinet 12 of FIG. 1 ) at which vibrations are measured and cases 1330, 1350, and 1370 in which no position guide apparatus is installed, and the Y-axis represents displacements of the cabinet 12.
  • the graph 1310 shows results of measurement through an experiment of rotating the washing drum (for example, the washing drum 22 of FIG. 2 ) at 800rpm after installing a weight of 1.0kg inside the washing drum 22.
  • the cabinet 12 may vibrate to 0.46mm in the left and right directions.
  • the cabinet 12 may vibrate to 0.37mm in the left and right directions.
  • the vibrations of the cabinet 12 may be reduced by 19%.
  • the cabinet 12 may vibrate to 0.25mm in the left and right directions.
  • the cabinet 12 may vibrate to 0.28mm in the left and right directions.
  • the vibrations of the cabinet 12 may increase by 12%.
  • the cabinet 12 may vibrate to 0.19mm in the left and right directions.
  • the cabinet 12 may vibrate to 0.17mm in the left and right directions.
  • the vibrations of the cabinet 12 may be reduced by 10%.
  • the position guide apparatus 100 may not transfer vibrations generated from the tub 21 to the suspension bar 54, and accordingly, the position guide apparatus 100 may not transfer vibrations generated from the tub 21 to the cabinet 12 connected to the suspension bar 54.
  • FIG. 14 is a perspective view showing another embodiment of a position guide apparatus included in a washing machine according to an embodiment of the present disclosure.
  • the stopper 130 may include a first absorption member 1410 and a second absorption member 1420. Both the first absorption member 1410 and the second absorption member 1420 may be located in the inside of the cylinder 120. The first absorption member 1410 and the second absorption member 1420 may be respectively located before and behind the catching portion 131.
  • both the absorption members 1410 and 1420 are located in the inside of the cylinder 120, it is possible to prevent cases in which the performance of the absorption members 1410 and 1420 deteriorates or the absorption members 1410 and 1420 are damaged due to outside moisture, etc.
  • the absorption members 1410 and 1420 may be made of, for example, rubber or silicon.
  • the absorption members 1410 and 1420 may reduce impact noise generated when the stopper 130 moves linearly along the stopper inserting hole 122 to contact the cylinder 120
  • a situation in which the first absorption member 140 approaches close to a first inner wall 1430 of the cylinder 120 may be a case in which the position guide apparatus 100 lengthens, and a situation in which the second absorption member 1420 approaches close to a second inner wall 1440 of the cylinder 120 may be a case in which the position guide apparatus 100 shortens.
  • FIGS. 15A and 15B show a tub, a suspension apparatus, and a position guide apparatus of a washing machine according to another embodiment of the present disclosure.
  • the tub and the suspension apparatus shown in FIG. 15A are the same as the tub 21 and the suspension apparatus 50 described above with reference to FIG. 3 , and accordingly, detailed descriptions thereof will be omitted.
  • a position guide apparatus 1500 may be installed at a location that is similar to that of the position guide apparatus 100 described above with reference to FIG. 3 . At least one position guide apparatus 1500 may be installed on the outer surface of the tub 21.
  • One end of the position guide apparatus 1500 may be installed on the tub 21, and the other end of the position guide apparatus 1500 may be connected to an area of the suspension bar 54 included in the suspension apparatus 50.
  • FIG. 15B is a side view showing the tub 21, the suspension apparatus 50, and the position guide apparatus 1500 of the washing machine (for example, the washing machine 1 of FIG. 1 ).
  • the position guide apparatus 1500 may be coupled with the tub 21 using a tub coupling rod 1540.
  • the position guide apparatus 1500 may be coupled with the tub 21 by inserting the tub coupling rod 1540 into a tub coupling rod inserting hole 1520 formed in one end of the position guide apparatus 1500 at a position guide apparatus coupling portion 1590.
  • the position guide apparatus coupling portion 1590 may include a first member 1591 and a second member 1592 respectively having holes into which the tub coupling rod 1540 can be inserted.
  • the tub coupling rod inserting hole 1520 of the position guide apparatus 1500 may be located between the first member 1591 and the second member 1592 of the position guide apparatus coupling portion 1590, and the tub coupling rod 1540 may be inserted into the first member 1591, the tub coupling rod inserting hole 1520, and the second member 1592 so that the position guide apparatus 1500 can be coupled with the tub 21.
  • the first member 1591 and the second member 1592 may be coupled with the outer surface of the tub 21 at an angle of 20 degrees to 40 degrees on the XY plane. Accordingly, the position guide apparatus 1500 inserted between the first member 1591 and the second member 1592 and coupled with the position guide apparatus coupling apparatus 1590 may also be coupled with the tub 21 at the angle of 20 degrees to 40 degrees on the XY plane.
  • FIGS. 16A and 16B show a position guide apparatus according to an embodiment of the present disclosure.
  • FIG. 16A is a perspective view of the position guide apparatus 1500.
  • FIG. 16B is a cross-sectional view of the position guide apparatus 1500.
  • the position guide apparatus 1500 may include a transversely moving portion 1510 and a longitudinally moving portion 1530.
  • one end of the transversely moving portion 1510 may include a pair of arms 1512.
  • the pair of arms 1512 may include openings 1514, respectively.
  • the openings 1514 may extend in a direction toward the arms 1512 from a center of the transversely moving portion 1510.
  • the longitudinally moving portion 1530 may be coupled with the transversely moving portion 1510 through the openings 1514 formed in the arms 1512. For example, by inserting a pair of protrusions 1533 formed on the outer surface of the longitudinally moving portion 1530 into the openings 1514 of the transversely moving portion 1510, the longitudinally moving portion 1510 can be coupled with the transversely moving portion 1510.
  • the other end of the transversely moving portion 1510 may include a tub coupling rod inserting hole 1520 for coupling with the tub 21.
  • the transversely moving portion 1510 may have a thinner thickness or a narrower width at an area in which the tub coupling rod inserting hole 1520 of the transversely moving portion 1510 is formed, than the other area.
  • the transversely moving portion 1510 may be coupled with the tub 21 using the tub coupling rod 1540.
  • the tub coupling rod inserting hole 1520 of the transversely moving portion 1510 may be positioned between the first member 1591 and the second member 1592 of the position guide apparatus coupling portion 1590.
  • the tub coupling rod 1540 may be inserted in the order of the first member 1591 of the position guide apparatus coupling portion 1590, the tub coupling rod inserting hole 1520, and the second member 1592 of the position guide apparatus coupling portion 1590.
  • the transversely moving portion 1510 may be coupled with the tub 21 in such a way to be rotatable on the tub coupling rod 1540.
  • a rubber bearing 1522 may be disposed between the tub coupling rob 1540 and the tub coupling rob inserting hole 1520.
  • the rubber bearing 1522 may reduce a friction force that is generated when the transversely moving portion 1510 rotates on the tub coupling rod 1540.
  • a friction member 1534 may be included in the inside of the transversely moving portion 1530.
  • the transversely moving portion 1530 may provide a suspension bar inserting passage 1535 into which the suspension bar 54 can be inserted through coupling of a first member 1531 and a second member 1532. Thereby, the transversely moving portion 1530 may move along the suspension bar 54.
  • the transversely moving portion 1530 may provide a friction member inserting space 1536 surrounding an area of the suspension bar inserting passage 1535.
  • the friction member inserting space 1536 may be formed in the inside of the transversely moving portion 1530 such that the diameter of the friction member inserting space 1536 is greater than that of the suspension bar inserting passage 1535 having a circular cross section.
  • the friction member 1534 may be filled in at least one area of the friction member inserting space 1536.
  • the friction member 1534 may be disposed in the friction member inserting space 1536 in such a way to surround a part of the suspension bar 54. If the suspension bar 54 is inserted into the longitudinally moving portion 1530, the friction member 1534 may contact the suspension bar 54. Thereby, when the longitudinally moving portion 1530 moves along the suspension bar 54, kinetic energy of the longitudinally moving portion 1530 can be reduced by a friction force that is generated between the friction member 1534 and the suspension bar 54. That is, a movement distance of the longitudinally moving portion 1530 can be reduced compared to when no friction member 1534 exists.
  • the friction member 1534 may be filled in the friction member insertion space 1536 without being fixed. Also, the friction member 1534 may be filled in an area of the friction member inserting portion 1536.
  • the friction member 1534 may contact the suspension bar 54 so as not to move in the friction member inserting space 1536.
  • the longitudinally moving portion 1530 can move without any limitation due to a friction force of the friction member 1534.
  • the friction member 1534 may move together with the longitudinally moving portion 1530.
  • the longitudinally moving portion 1530 may be limited in moving due to a friction force generated between the friction member 1534 and the suspension bar 54.
  • a movement distance of the longitudinally moving portion 1530 may be reduced compared to when no friction member 1534 exists.
  • a distance to which the longitudinally moving portion 1530 can move without any limitation due to a friction force between the friction member 1534 and the suspension bar 54 may depend on a length of an area in which the friction member 1534 is not filled in the friction member inserting space 1536.
  • FIGS. 17A, 17B , 17C, and 17D are views for describing movements of the tub when the washing machine according to the embodiment of the present disclosure performs a washing course.
  • the tub 21 may move in the left and right directions (in X- and Y-axis directions).
  • the washing machine 1 may rotate the washing drum (for example, the washing drum 22 of FIG. 2 ).
  • the washing machine 1 may increase the RPM of the washing drum 22 gradually.
  • the washing machine 1 may increase the RMP of the washing drum 22 from 0rpm to 800rpm.
  • a section for which the washing machine 1 gradually increases the RPM of the washing drum 22 may be defined as, for example, a transient section.
  • the tub 21 may move in the left and right directions on the XY plane.
  • FIG. 17A shows positions of the tub 21, the position guide apparatus (that is, a first position guide apparatus 1500a and a second position guide apparatus 1500b) 1500, and the suspension apparatus 50 before a movement occurs.
  • movements of the position guide apparatus 1500 will be described using the first position guide apparatus 1500a and the second position guide apparatus 1500b.
  • FIG. 17B shows a case in which the tub 21 moves in the positive (+) X-axis direction.
  • the first position guide apparatus 1500a and the second position guide apparatus 1500b coupled with the tub 21 may move.
  • a transversely moving portion 1510a included in the first position guide apparatus 1500a may move in the positive (+) X-axis direction
  • a longitudinally moving portion 1530a included in the first position guide apparatus 1500a may move downward (a negative (-) Z-axis direction) along the suspension bar 54.
  • a transversely moving portion 1510b included in the second position guide apparatus 1500b may move in the positive (+) X-axis direction
  • a longitudinally moving portion 1530b included in the second position guide apparatus 1500b may move upward (a positive (+) Z-axis direction) along the suspension bar 54.
  • the tub 21 may move up and down so that a rolling phenomenon in which the tub 21 rotates on the Z-axis can occur.
  • the tub 21 may roll. For example, if the RPM of the washing drum 22 reaches about 250rpm, the tub 21 may move up and down so that the tub 21 rotates on the Z-axis, and accordingly, a rolling phenomenon in which the upper portion of the tub 21 is tilted may occur. As a result, the tub 21 may move in the left and right directions (XY plane) and in the up and down directions (Z-axis).
  • FIG. 17C shows positions of the tub 21, the position guide apparatus 1500, and the suspension bar 54 before a movement occurs.
  • FIG. 17D shows a case in which the upper portion of the tub 21 is tilted to the left on the Z-axis.
  • the first position guide apparatus 1500a and the second position guide apparatus 1500b coupled with the tub 21 may also move.
  • the transversely moving portion 1510a included in the first position guide apparatus 1500a may move in the negative (-) X-axis direction
  • the longitudinally moving portion 1530a may move upward (positive (+) Z-axis direction) along the suspension bar 54.
  • transversely moving portion 1510b included in the second position guide apparatus 1500b may move in the negative (-) X-axis direction, and the longitudinally moving portion 1530b may move downward (negative (-) Z-axis direction) along the suspension bar 54.
  • the longitudinally moving portion 1530 included in the position guide apparatus 1500 may move along the suspension bar 54 according to a movement of the tub 21. At this time, a movement distance of the tub 21 may be reduced by the friction member 1534 included in the longitudinally moving portion 1530. That is, kinetic energy due to a movement of the tub 21 may be reduced by the position guide apparatus 1500. As a result, during the washing course, the tub 21 can be prevented from colliding with the cabinet 12 surrounding the tub 21.
  • FIGS. 18A, 18B , 18C, 18D , and 18E are views for describing a process in which a position guide apparatus according to an embodiment of the present disclosure reduces a movement distance of the tub.
  • an angle ⁇ formed between the transversely moving portion 1510 coupled with the tub (for example, the tub 21 of FIG. 15 ) and the longitudinally moving portion 1530 coupled with the suspension bar 54 may exceed 90 degrees.
  • the angle ⁇ formed between the transversely moving portion 1510 and the longitudinally moving portion 1530 may be an angle between about 120 degrees and about 140 degrees.
  • the longitudinally moving portion 1530 can easily move toward the upper or lower portion of the suspension bar 54 along the suspension bar 54 since the transversely moving portion 1510 and the longitudinally moving portion 1530 form an obtuse angle. That is, since the transversely moving portion 1510 and the longitudinally moving portion 1530 form an obtuse angle, it is possible to reduce a probability that the suspension bar 54 gets bent by the longitudinally moving portion 1530 when the transversely moving portion 1510 moves so that the longitudinally moving portion 1530 becomes immovable.
  • the first member 1591 and the second member 1592 of the position guide apparatus coupling portion 1590 between which the tub coupling rod inserting hole 1520 of the position guide apparatus 1500 is positioned may form an angle of 20 degrees to 40 degrees with respect to the X-axis.
  • FIG. 18A shows a state in which the tub 21 is immovable, like FIG. 17A .
  • the protrusions 1533 formed on the outer surface of the longitudinally moving portion 1530 and inserted into the openings 1514 of the transversely moving portion 1510 may be positioned in the center of the openings 1514. That is, the protrusions 1533 may be in non-contact with one ends or the other ends of the inner surfaces of the openings 1514.
  • the position guide apparatus 1500 may also move in the positive (+) X-axis direction.
  • the protrusions 1533 formed on the outer surface of the longitudinally moving portion 1530 may contact one ends of the openings 1514 formed in the arms 1512 of the transversely moving portion 1510.
  • the transversely moving portion 1510 of the position guide apparatus 1500 may transfer kinetic energy generated by a movement of the tub 21 to the protrusions 1533. Due to the kinetic energy transferred to the protrusions 1533, the longitudinally moving portion 1530 may move to the upper portion of the suspension bar 54 along the suspension bar 54.
  • the position guide apparatus 1500 may also move in the negative (-) X-axis direction.
  • the protrusions 1533 formed on the outer surfaces of the longitudinally moving portion 1530 may contact the other ends of the openings 1514 formed in the arms 1512 of the transversely moving portion 1510.
  • the transversely moving portion 1510 of the position guide apparatus 1500 may transfer kinetic energy generated by the movement of the tub 21 to the protrusions 1533. Due to the kinetic energy transferred to the protrusions 1533, the longitudinally moving portion 1530 may move to the lower portion of the suspension bar 54 along the suspension bar 54.
  • the friction member 1534 may function to reduce the kinetic energy generated by the tub 21 and transferred to the longitudinally moving portion 1530. Accordingly, a movement distance of the tub 21 can be reduced compared to when no friction member 1534 exists, and the tub 21 can be prevented from colliding with the cabinet 12 outside the tub 21.
  • FIGS. 19A and 19B are graphs for comparing a case in which the position guide apparatus according to the embodiment is installed in the washing machine to a case in which no position guide apparatus is installed in the washing machine.
  • FIG. 19A is a graph for comparing movements in the X- and Y-axis directions
  • FIG. 19B is a graph for comparing movements in the Z-axis direction.
  • the X-axis represents a case 1910 in which the position guide apparatus is installed and a case 1920 in which no position guide apparatus is installed
  • the Y-axis represents an amount of movement of the tub (for example, the tub 21 of FIG. 2 ).
  • the graph of FIG. 19A shows results of measurement through an experiment of increasing the RPM of the washing drum (for example, the washing drum 22 of FIG. 2 ) from 0rpm to 800rpm after installing a weight of 1.2kg inside the washing drum 22.
  • the tub 21 may move to a distance of 32.5mm in the left and right directions.
  • the tub 21 may move to a distance of 17.7mm in the left and right directions.
  • the movement distance of the tub 21 may be shortened by 14.8mm in the left and right directions, resulting in a reduction rate of movement of 46%.
  • the tub 21 may move to a distance of 20.2mm in the front and back directions.
  • the tub 21 may move to a distance of 16.7 mm in the front and back directions.
  • the movement distance of the tub 21 may be shortened by 3.5mm in the front and back directions, resulting in a reduction rate of movement of 17%.
  • the tub 21 may move to a distance of 6.3mm in the up and down directions.
  • the tub 21 may move to a distance of 4.8mm in the up and down directions.
  • the movement distance of the tub 21 may be shortened by 1.5mm in the up and down directions, resulting in a reduction rate of movement of 24%.
  • FIG. 20 is a view for describing a situation in which the position guide apparatus prevents vibrations of the tub from being transferred to the cabinet in the washing machine according to the embodiment of the present disclosure.
  • a section for which the washing drum 22 is maintained at constant RPM after a transient section elapses may be defined as a steady section.
  • the position guide apparatus 1500 may prevent vibrations of the tub 21 from being transferred to the cabinet 12.
  • the protrusions 1533 of the longitudinally moving portion 1530 may move in the openings 1514 of the transversely moving portion 1510 without contacting one ends or the other ends of the openings 1514. In the insides of the openings 1514, no friction member for limiting the movements of the protrusions 1533 may exist. Accordingly, during the steady section, vibrations of the tub 21 may be not transferred to the longitudinally moving portion 1530. As a result, the position guide apparatus 1500 may not transfer vibrations of the tub 21 to the cabinet 12 connected to the suspension bar 54.
  • FIG. 21 is a graph for comparing a case in which the position guide apparatus is installed in the washing machine according to the embodiment to a case in which no position guide apparatus is installed in the washing machine.
  • the X-axis represents a case in which the position guide apparatus is installed, and a case in which no position guide apparatus is installed, according to positions of the cabinet (for example, the cabinet 12 of FIG. 1 ) from which vibrations are measured, and the Y-axis represents movement distances of the cabinet 12.
  • the graph 2100 shows results of measurement through an experiment of rotating the washing drum (for example, the washing drum 22 of FIG. 2 ) at 800rpm after installing a weight of 1.2kg inside the washing drum 22.
  • the cabinet 12 may vibrate to a distance of 0.84mm in the left and right directions, with respect to a right center portion of the cabinet 12.
  • the cabinet 12 may vibrate to a distance to 0.73mm in the left and right directions. Compared to the case 2110 in which no position guide apparatus is installed, vibrations of the cabinet 12 may be reduced by 13%.
  • the same level of vibrations may be generated in both a case 2130 in which no position guide apparatus is installed and a case 2140 in which the position guide apparatus is installed.
  • the position guide apparatus 1500 may not transfer vibrations generated from the tub 21 to the suspension bar 54, and accordingly, the position guide apparatus 1500 may also not transfer the vibrations generated from the tub 21 to the cabinet 12 connected to the suspension bar 54.
  • FIG. 22 is a perspective view showing another embodiment of a transversely moving portion included in the position guide apparatus according to the embodiment.
  • the basic configuration of a position guide apparatus 1501 is the same as that of the position guide apparatus 1500 of FIG. 15 , and accordingly, in the following description, differences between the position guide apparatus 1501 and the position guide apparatus 1500 will be described.
  • a first absorption member 2221 and a second absorption member 2222 may be disposed in one ends and the other ends of openings 2220 formed in a transversely moving portion 2210.
  • the first absorption member 2221 and the second absorption member 2222 may be formed of, for example, rubber or silicon.
  • the first absorption member 2221 and the second absorption member 2222 may cushion an impact that is generated when protrusions 2230 move along the openings 2220 to contact one ends and the other ends of the openings 2220.
  • FIGS. 23A and 23B show another embodiment of a longitudinally moving portion included in the position guide apparatus according to the embodiment.
  • a longitudinally moving portion 2330 may have a structure configured by coupling a first member 2331 with a second member 2335 to form an insertion passage into which the suspension bar 54 can be inserted.
  • the first member 2331 may include a pair of arms 2334, and in the pair of arms 2334, a pair of catching grooves 2332 may be formed to be coupled with a pair of protrusions 2336 formed in the second member 2335.
  • the second member 2335 may be inserted between the pair of arms 2334 included in the first member 2331 so that the protrusions 2336 of the second member 2335 are coupled with the catching grooves 2332 of the first member 2331, and the first member 2331 is coupled with the second member 2335 to function as the longitudinally moving portion 2330.
  • a pair of protrusions 2333 may be formed on the outer surface of the second member 2335.
  • the protrusions 2333 may be inserted into openings 2314 formed in a transversely moving portion 2310 to couple the longitudinally moving portion 2330 with the transversely moving portion 2310.
  • the longitudinally moving portion 2330 may include a friction member inserting space 2340 surrounding an area of a suspension bar inserting passage 2339 formed therein. That is, the friction member inserting space 2340 may be formed in the inside of the longitudinally moving portion 2330 such that the friction member inserting space 2340 has a diameter that is greater than that of the suspension bar inserting passage 2339 having a circular cross-section.
  • a friction member 2341 may be filled.
  • the friction member 2341 may be disposed in the friction member inserting space 2340 to surround a part of the suspension bar 54. If the suspension bar 54 is inserted into the longitudinally moving portion 2330, the friction member 2341 may contact the suspension bar 54. Accordingly, when the longitudinally moving portion 2330 moves along the suspension bar 54, kinetic energy of the longitudinally moving portion 2330 can be reduced by a friction force of the friction member 2341. That is, a movement distance of the longitudinally moving portion 1530 can be reduced compared to when no friction member 2341 exists.
  • the friction member 2341 may be filled in the friction member inserting space 2340 without being fixed. Also, the friction member 2341 may be filled in an area of the friction member inserting space 2340.
  • the friction member 2341 may contact the suspension bar 54 so as not to move in the friction member inserting space 2340.
  • the longitudinally moving portion 2330 can move without any limitation due to a friction force of the friction member 2341.
  • the friction member 2341 may move together with the longitudinally moving portion 2330.
  • the longitudinally moving portion 2330 may be limited in moving due to a friction force generated between the friction member 2341 and the suspension bar 54. As a result, a movement distance of the longitudinally moving portion 2330 may be reduced compared to when no friction member 2341 exists.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (9)

  1. Waschmaschine (1), umfassend:
    ein Gehäuse°(12);
    eine innerhalb des Gehäuses angeordnete Wanne (21);
    mindestens eine Aufhängungsvorrichtung (50), die dazu ausgestaltet ist, Vibrationen der Wanne (21) zu reduzieren und die Wanne (21) so mit dem Gehäuse (12) zu verbinden, dass die Wanne (21) von dem Gehäuse (12) getragen wird; und
    eine Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) mit einem mit der mindestens einen Aufhängungsvorrichtung (50) verbundenen Ende und einem weiteren mit der Wanne (21) verbundenen Ende der Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501), wobei die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) dazu ausgestaltet ist, einen Bewegungsbereich der Wanne (21) in einer horizontalen Richtung zu beschränken,
    wobei die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) Folgendes umfasst:
    einen Zylinder (120) mit einem Innenraum (123); und
    einen Anschlag (130) mit mindestens einem in dem Innenraum des Zylinders befindlichen Abschnitt und einem verbleibenden außerhalb des Zylinders befindlichen Abschnitt des Anschlags (130), wobei der Anschlag (130) einen Eingriffsabschnitt (131) an einem Ende des mindestens einen in dem Innenraum des Zylinders (120) befindlichen Abschnitt des Anschlags (130) umfasst, wobei der Eingriffsabschnitt (131) den Anschlag daran hindert, aus dem Zylinder (120) auszutreten, wenn der Anschlag (130) sich in dem Innenraum (123) des Zylinders (120) vor und zurück bewegt,
    die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) einen Aufhängestangenkopplungsabschnitt (150) umfasst, der an einem Ende des verbleibenden außerhalb des Zylinders (120) befindlichen Abschnitts des Anschlags (130) vorgesehen ist, und
    der Aufhängestangenkopplungsabschnitt (150) mit einer in der mindestens einen Aufhängungsvorrichtung (50) enthaltenen Aufhängestange (54) verbunden ist,
    dadurch gekennzeichnet, dass
    der Anschlag (130) ferner ein erstes Absorptionsteil (140a) umfasst, das dem Eingriffsabschnitt (131) benachbart angeordnet ist, und
    der Anschlag (130) ferner ein zweites Absorptionsteil (140b) umfasst, das dem Aufhängestangenkopplungsabschnitt (150) benachbart angeordnet ist.
  2. Waschmaschine (1) nach Anspruch 1, wobei
    ein Ende des Zylinders (120) ein Anschlageinsetzloch umfasst, in das der mindestens eine Abschnitt des Anschlags (130) eingesetzt wird,
    ein weiteres Ende des Zylinders (120) ein Wannenbefestigungsloch umfasst und
    die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) ferner einen Wannenbefestigungsabschnitt umfasst, der dazu ausgestaltet ist, so in das Wannenbefestigungsloch eingesetzt zu werden, dass beide Enden des Wannenbefestigungsabschnittes drehbar mit einem in einer Außenfläche der Wanne (21) ausgebildeten Positionierungsvorrichtungskopplungsabschnitt gekoppelt werden.
  3. Waschmaschine (1) nach Anspruch 2, wobei der Wannenbefestigungsabschnitt dazu ausgestaltet ist, so in den Zylinder (120) eingesetzt zu werden, dass der Zylinder (120) auf dem Wannenbefestigungsabschnitt als eine Drehwelle drehbar ist.
  4. Waschmaschine (1) nach Anspruch 1, wobei der Zylinder (120) zwischen einer ersten Position, in der der Zylinder (120) mit dem ersten Absorptionsteil (2221) in Kontakt steht, und einer zweiten Position, in der der Zylinder (120) mit dem zweiten Absorptionsteil (2222) in Kontakt steht, bewegbar ist.
  5. Waschmaschine (1) nach Anspruch 1, wobei
    der Aufhängestangenkopplungsabschnitt ein erstes Teil umfasst, das einen ersten Aufnahmeraum (152) aufweist, wobei der Anschlag (130) zum Einsetzen in diesen ausgestaltet ist, und
    der Aufhängestangenkopplungsabschnitt ferner ein zweites Teil umfasst, das einen zweiten Aufnahmeraum (156) aufweist, wobei die Aufhängestange zum Einsetzen in diesen ausgestaltet ist.
  6. Waschmaschine (1) nach Anspruch 5, wobei das zweite Teil (155) ferner einen Vorsprung (157) umfasst und das erste Teil (151) ferner ein Loch (153) umfasst, wobei der Vorsprung des zweiten Teiles dazu ausgestaltet ist, so in dieses eingesetzt zu werden, dass das zweite Teil (155) mit dem ersten Teil (151) gekoppelt ist, um in Bezug auf das erste Teil unter Verwendung des Vorsprungs als eine Drehwelle drehbar zu sein.
  7. Waschmaschine (1) nach Anspruch 5, wobei der zweite Aufnahmeraum (156) entlang der Aufhängestange bewegbar ist.
  8. Waschmaschine (1), umfassend:
    ein Gehäuse°(12);
    eine innerhalb des Gehäuses angeordnete Wanne (21);
    mindestens eine Aufhängungsvorrichtung (50), die dazu ausgestaltet ist, Vibrationen der Wanne (21) zu reduzieren und die Wanne (21) so mit dem Gehäuse (12) zu verbinden, dass die Wanne (21) von dem Gehäuse (12) getragen wird; und
    eine Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) mit einem mit der mindestens einen Aufhängungsvorrichtung (50) verbundenen Ende und einem weiteren mit der Wanne (21) verbundenen Ende der Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501),
    wobei die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) dazu ausgestaltet ist, einen Bewegungsbereich der Wanne (21) in einer horizontalen Richtung zu beschränken,
    wobei die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) Folgendes umfasst:
    einen Zylinder (120) mit einem Innenraum; und
    einen Anschlag (130) mit mindestens einem in dem Innenraum des Zylinders befindlichen Abschnitt und einem verbleibenden außerhalb des Zylinders befindlichen Abschnitt des Anschlags (130),
    wobei der Anschlag (130) einen Eingriffsabschnitt (131) an einem Ende des mindestens einen in dem Innenraum des Zylinders (120) befindlichen Abschnitt des Anschlags (130) umfasst, wobei der Eingriffsabschnitt (131) den Anschlag (130) daran hindert, aus dem Zylinder (120) auszutreten, wenn der Anschlag (130) sich in dem Innenraum (123) des Zylinders (120) vor und zurück bewegt,
    die Positionierungsvorrichtung (100, 100a, 100b, 100c, 100d, 1500, 1501) einen Aufhängestangenkopplungsabschnitt (150) umfasst, der an einem Ende des verbleibenden außerhalb des Zylinders (120) befindlichen Abschnitts des Anschlags (130) vorgesehen ist, und
    der Aufhängestangenkopplungsabschnitt (150) mit einer in der mindestens einen Aufhängungsvorrichtung (50) enthaltenen Aufhängestange (54) verbunden ist,
    dadurch gekennzeichnet, dass
    der Anschlag (130) ferner ein auf einer Oberfläche in Bezug zu dem Eingriffsabschnitt (131) angeordnetes erstes Absorptionsteil (1410) umfasst und
    der Anschlag (130) ferner ein auf einer der einen Oberfläche in Bezug zu dem Eingriffsabschnitt (131) gegenüberliegenden Oberfläche angeordnetes zweites Absorptionsteil (1420) umfasst.
  9. Waschmaschine (1) nach Anspruch 1, wobei die Positionierungsvorrichtung (1500, 1501) dazu ausgestaltet ist, einen Abstand zwischen der mindestens einen Aufhängungsvorrichtung und der Wanne (21) auf einen vorbestimmten Abstand zu beschränken.
EP17872523.0A 2016-11-21 2017-11-15 Waschmaschine Active EP3504371B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20160155231 2016-11-21
KR1020170047447A KR102368415B1 (ko) 2016-11-21 2017-04-12 세탁기
PCT/KR2017/012929 WO2018093139A1 (en) 2016-11-21 2017-11-15 Washing machine

Publications (3)

Publication Number Publication Date
EP3504371A4 EP3504371A4 (de) 2019-07-03
EP3504371A1 EP3504371A1 (de) 2019-07-03
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KR20210069960A (ko) * 2019-12-04 2021-06-14 삼성전자주식회사 세탁기 및 이에 구비되는 진동 저감 장치

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KR0117588Y1 (ko) * 1993-02-20 1998-07-15 배순훈 세탁기의 세탁물중량 감지장치
KR200320745Y1 (ko) * 2003-04-29 2003-07-22 주식회사 대우일렉트로닉스 세탁기용 현가장치
WO2010107231A1 (ko) * 2009-03-20 2010-09-23 엘지전자 주식회사 세탁물 처리기기
AU2014293895B2 (en) * 2013-07-22 2019-07-04 Lg Electronics Inc. Laundry treatment apparatus
KR102229297B1 (ko) * 2014-06-11 2021-03-17 엘지전자 주식회사 세탁기
KR102104815B1 (ko) * 2016-02-17 2020-04-27 엘지전자 주식회사 수평 진동 감쇄부 및 이를 구비한 세탁물 처리기기

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EP3504371A4 (de) 2019-07-03
KR102368415B1 (ko) 2022-02-28
EP3504371A1 (de) 2019-07-03

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