EP3835477B1 - Universal leveling arrangement for a household appliance - Google Patents

Universal leveling arrangement for a household appliance Download PDF

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Publication number
EP3835477B1
EP3835477B1 EP20210267.9A EP20210267A EP3835477B1 EP 3835477 B1 EP3835477 B1 EP 3835477B1 EP 20210267 A EP20210267 A EP 20210267A EP 3835477 B1 EP3835477 B1 EP 3835477B1
Authority
EP
European Patent Office
Prior art keywords
connection means
household appliance
main shaft
pair
shafts
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
EP20210267.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3835477A1 (en
Inventor
Hamdi GUNDOGAN
Serdar KANTIK
Murat Ungor
Murat YETILMEZSOY
Recep KARAGOZ
Kemal DINCER
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP3835477A1 publication Critical patent/EP3835477A1/en
Application granted granted Critical
Publication of EP3835477B1 publication Critical patent/EP3835477B1/en
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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
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4253—Supporting arrangements for the casing, e.g. rollers or supporting legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/02—Adjustable feet
    • A47B91/022—Adjustable feet using screw means

Definitions

  • the present invention relates to a household appliance, in particular to a household appliance having height leveling mechanism.
  • Household appliances such as dishwashers, washing and/or drying machines, ovens and refrigerators, are commonly used in our daily lives.
  • Said household appliances comprises a pair of rear feet via which their height is adjusted in order to balance the household appliance.
  • the user needs to rotate the pair of feet.
  • the user rotates the pair of rear feet clockwise or anti-clockwise until levelness is achieved.
  • this method is cumbersome, as the user may need to push and pull the household appliance to a designated area inside the kitchen or the bathroom. It is known from the state of the art that the height adjustment is performed by rotating a shaft.
  • the shaft is coupled to one of the rear foot and extends along the depth of the household appliance, protruding from the front end of the household appliance.
  • the user after pushing the household appliance to the designated area inside the kitchen or the bathroom rotates the aforementioned shaft therefore adjusting the height of the household appliance.
  • Each foot is connected to a shaft; therefore the user has to separately rotate each shaft to adjust the height of the household appliance which creates extra burden for the user.
  • Another problem with the state of the art is the fact that each one of the rear feet requires a separate shaft which increases the cost of the household appliances.
  • KR20040046106 A prior art publication in the technical field of the present invention may be referred to as KR20040046106 among others, the document disclosing a cooling appliance having plurality of support legs in relation with shafts and gears used for height adjustment.
  • Document US 3 673 592 A discloses a household appliance provided with a caster jack mechanism having a shaft extending across the width of the cabinet and having caster wheels at its ends journaled for rotation in opposed walls of the cabinet, whereby the frame of the appliance is lifted from the floor and supported on caster wheels for movement to a new location.
  • An objective of the present invention is to adjust the height of the household appliances wherein the said adjustment is achieved for every ground surface condition in an easily operable manner that is convenient for the user.
  • the method realized to achieve the aim of the present invention and disclosed in the independent claim 1 and the dependent claims comprises a household appliance having a body.
  • the body is elevated from the ground via a plurality of feet.
  • a pair of rear feet is provided at a rear end of the household appliance.
  • the pair of rear feet are attached to a lower surface of the body in a rotatably manner. Upon being rotated, the tip of the pair of rear feet provides height adjustment of the household appliance.
  • a main shaft is provided and is coupled to a pair of shafts in a rotatably manner.
  • the main shaft upon being rotated, transmits the rotation to the shafts which in turn transmits the rotation to the pair of rear feet thereby adjusting the height and the levelness of the household appliance.
  • the main shaft is connected to the shafts via a transmission unit.
  • the transmission unit comprises necessary equipment to transmit the rotation from the main shaft to the shafts. By means of the transmission unit, the shafts are rotated via a single main shaft which not only helps reduce the material related costs but also provides ease of use for the user.
  • the main shaft is configured to move along its elongation direction.
  • the main shaft has two different position, neutral position and the pushed-in position.
  • the pair of rear feet are configured rotate in opposite directions with respect to each other. Meaning that one of the rear feet, heightens the household appliance meanwhile the other one of the rear feet lowers the household appliance.
  • the pair of rear feet are configured rotate in same direction with respect to each other. Meaning that both of the pair of rear feet heightens or lowers the household appliance.
  • the main shaft being configured to move along its elongation direction, the height and levelness of the household appliance can be adjusted on every ground condition. For instance, if there is an elevation difference between the ground the right rear foot and the left foot is standing on, the user rotates the main shaft in neutral position. Similarly, if the right rear foot and the left foot are standing on a ground having same elevation but the rear side of the household appliance is at a lower or at a higher elevation than the front of the household appliance than the user may use the pushed-in position to adjust the height of the household appliance.
  • the transmission unit comprises a first connection means, a second connection means, a third connection means and a fourth connection means.
  • Said connection means are coupled with one another in a predetermined manner.
  • the way the said connection means are coupled to each other changes.
  • the pair of rear feet can be rotated in the same direction or in the opposite direction.
  • the first connection means is coupled to the second connection means, the second connection means to the third connection means and the third connection means to the fourth connection means respectively.
  • the fourth connection means is coupled to the first connection means and the first connection means to the second connection means.
  • the first connection means is in between the fourth connection means and the second connection means.
  • the fourth connection means, and the second connection means are attached to the shafts from one end.
  • the first connection means is attached to the main shaft from one end.
  • connection means are preferably gears but more preferably bevel gears.
  • a biasing means is placed on the main shaft and biases the main shaft towards the neutral position.
  • the biasing means is a helical spring but it is to be understood that the skilled person in the art can use and any elements suitable for biasing.
  • the biasing means provides an automatic push out mechanism for the main shaft.
  • At least one of the shafts comprises a joint.
  • an offsetness is formed.
  • the joint forms an elbow overcoming the side effects of being offset.
  • a router joint interconnecting the main shaft to one of the shafts is provided.
  • the router joint in the shape of an "L", is provided so as to extend in between the main shaft and one of the shafts. As the position of the main shaft changes, the router joint supports the movement and helps overcome the side effects of the aforementioned offsetness.
  • the household appliance comprises a support structure.
  • the support structure is placed onto the bottom of the household appliance.
  • the support structure carries the transmission means and the pair of rear feet.
  • the support structure provides structural strength for the household appliance.
  • the height of the household appliance can be adjusted without being have to move the household appliance from its current position.
  • Another advantageous effect of this invention is that the height of the household appliance can be adjusted via a single main shaft which decreases manufacturing costs.
  • Another advantageous effect of this invention is that the height of the household appliance can be adjusted simply by pushing or pulling and rotating the main shaft which provides convenience for the user.
  • Another advantageous effect of this invention is that the operational parts of the transmission unit are all mechanical which has the advantage of long lifetime compared to electronic and hydraulic systems.
  • the levelness of the household appliance is achieved by means of the shaft wherein the shaft is configured to move along its elongation direction between two different positions and the transmission unit within which the shaft and the communication means are accommodated.
  • the present invention relates to a household appliance (1) comprising; a body and a pair of rear feet rotatably coupled to a lower surface of the body to adjust the height of the body via a pair of shafts (2).
  • the present invention relates to a main shaft (3), connected to the pair of shafts (2) via a transmission unit (4) wherein the main shaft (3) is configured to rotate the pair of shafts (2) upon being rotated.
  • the pair of rear feet are rotatably inserted inside the body. As the pair of rear feet rotate, they move towards the inside or outside the body depending on the direction of rotation, therefore adjusting the height of the body.
  • the pair of rear feet are rotatably connected to a pair of shafts (2).
  • the shafts (2) extend towards each other almost along a linear direction.
  • the main shaft (3) is connected to the shafts (2) via the transmission unit (4).
  • the transmission unit (4) conveys the rotation to the shafts (2) which in turn forces the pair of rear feet to rotate thereby adjusting the height of the household appliance (1).
  • the rotation is conveyed to the pair of rear feet, simultaneously adjusting the height of both rear feet providing convenience for the user.
  • Another advantageous effect provided by means of the shafts (2,3) is that the mechanical structure they have is robust and provides long lifetime usage without the need for maintenance.
  • the main shaft (3) is configured to move along its elongation direction between a neutral position and a pushed-in position during which the pair of rear feet adjusts the height of the body in opposite and in same directions respectively.
  • the main shaft (3) moves along its elongation direction between two positions.
  • the neutral position the main shaft (3), upon being rotated, forces the pair of rear feet to rotate in opposite directions. This results in helping to adjust the height of the household appliance (1) if there is a level difference on the ground whereon the pair of rear feet contacts. For instance, one of the rear feet may be standing on a bump whereas the other one of the rear feet may have lost contact with the ground due to a cavity on the ground.
  • the main shaft (3) upon being rotated, forces the pair of rear feet to rotate in the same direction. This results in helping to adjust the height of the household appliance (1) if there is a level difference on the ground between the front of the household appliance (1) and the rear of the household appliance (1). For instance, an inclination towards the rear of the household appliance (1).
  • the user may need to use first the pushed-in position and later the neutral position.
  • the main shaft (3) By means of the main shaft (3) being able to move along its elongation direction two different positions are achieved which helps the user to adjust the height and therefore the levelness of the household appliance (1) in every ground condition.
  • the transmission unit (4) comprises a first connection means (4a), a second connection means (4b), a third connection means (4c) and a fourth connection means (4d) wherein said connection means (4a,4b,4c,4d) rotatably interconnected and wherein some of the said connection means (4a,4b,4c,4d) couple and decouple as the position of the main shaft (3) changes.
  • the shafts (2) are rotatably connected to the pair of rear feet from one end.
  • the second connection means (4b) and the fourth connection means (4d) are attached to the shafts (2) from the other end.
  • the main shaft (3) comprises the first connection means (4a) and the fourth connection means (4d) which are separated by a distance.
  • the main shaft (3) has two positioned as it was mentioned before.
  • connection means (4a) is rotatably connected to the second connection means (4b), the second connection means (4b) to the third connection means (4c), the third connection means (4c) to the fourth connection means (4d).
  • connection means (4c) is disconnected from the second connection means (4b) and the fourth connection means (4d).
  • first connection means (4a) lays rotatably coupled and in-between the second connection means (4b) and the fourth connection means (4d).
  • connection means (4a,4b,4c,4d) are gears.
  • the gears are long lasting and requires minimum maintenance. Another advantageous effect of using gears is the fact that they are an economical solution to adjusting the height of the household appliance (1).
  • the gears are bevel gears.
  • Bevel gears have conically shaped tooth bearing surfaces.
  • the shafts (2,3) that intersect each other by 90 degrees or any other angle in-between 0 degree and 180 degrees can be designed to couple with each other.
  • Bevel gears, like regular gears, are long lasting and requires minimum maintenance and an economical solution to adjusting the height of the household appliance (1).
  • a biasing means (5) is placed on the main shaft (3) biasing the main shaft (3) towards the neutral position.
  • the biasing means (5) By means of the biasing means (5), the main shaft (3) is returned to neutral position as soon as the user removes pressure on the main shaft (3) which provides ease of use for the user.
  • At least one of the shafts (2) comprises a joint (6).
  • the connection means (4a,4b,4c,4d) remain aligned as the position of the main shaft (3) changes.
  • a router joint (7) is connecting the main shaft (3) to at least one of the shafts (2).
  • the router joint (7) is preferably in the shape of an "L" and connects the main shaft (3) to the shaft (2).
  • the router joint (7) is forced to rotate around an axis.
  • the shaft (2) connected to the joint router (7) moves, making alignment of the connection means (4a,4b,4c,4d) easier.
  • a support structure (8) carries the transmission unit (4) and the pair of rear feet.
  • the support structure (9) is in the shape of a plate and is placed to the lower surface of the body.
  • the support structure (9) provides structural support.
  • shafts (2) are rotatably coupled with the rear feet via a fifth and a sixth connection means.
  • the said connection means are preferably bevel gears, but it is to be understood that the skilled person in the art can use any elements suitable to transfer the rotation of the shafts (2) to the pair of rear feet.
  • a lug is placed onto the end of the main shaft (3) facing the front of the household appliance (1) into which the user may insert a screw or an allen key or a specialized instrument (not shown) provided by the manufacturer to rotate the main shaft (3).
  • the main shaft (3) and the shafts (2) are attached to the bottom of the household appliance (1) via hanging means (not shown), rotatably fixing the said shafts (2) to the body.
  • the household appliance (1) of the present invention is a cooling appliance or a washer or a washer/dryer or an oven or a dishwasher.
  • the levelness of the household appliance is achieved by means of the main shaft (3) being able to move along its elongation direction which helps the connection means (4a,4b,4c,4d) to couple and decouple which in turn changes the direction of rotation of the pair of rear feet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Legs For Furniture In General (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Pivots And Pivotal Connections (AREA)
EP20210267.9A 2019-12-10 2020-11-27 Universal leveling arrangement for a household appliance Active EP3835477B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2019/19754A TR201919754A2 (tr) 2019-12-10 2019-12-10 Evrensel sevi̇ye ayarlayici

Publications (2)

Publication Number Publication Date
EP3835477A1 EP3835477A1 (en) 2021-06-16
EP3835477B1 true EP3835477B1 (en) 2023-11-08

Family

ID=73642638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20210267.9A Active EP3835477B1 (en) 2019-12-10 2020-11-27 Universal leveling arrangement for a household appliance

Country Status (2)

Country Link
EP (1) EP3835477B1 (tr)
TR (1) TR201919754A2 (tr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673592A (en) * 1970-08-21 1972-06-27 Whirlpool Co Lockout for portable appliance with caster jack mechanism
US4967994A (en) * 1989-05-17 1990-11-06 Rice Richard M Household applicance lifting and stabilizing system
KR20040046106A (ko) 2002-11-26 2004-06-05 삼성전자주식회사 냉장고
WO2010020633A1 (en) * 2008-08-18 2010-02-25 Arcelik Anonim Sirketi A household appliance
WO2016193369A1 (en) * 2015-06-03 2016-12-08 Arcelik Anonim Sirketi Household appliance with adjustable height controlled from the front
CN108930870B (zh) * 2017-05-23 2021-01-05 青岛海尔洗衣机有限公司 自动水平调节装置和包括该装置的衣物处理装置

Also Published As

Publication number Publication date
EP3835477A1 (en) 2021-06-16
TR201919754A2 (tr) 2021-06-21

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