EP3092334B1 - A drum with improved mechanical strength and the production method thereof - Google Patents

A drum with improved mechanical strength and the production method thereof Download PDF

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Publication number
EP3092334B1
EP3092334B1 EP14792479.9A EP14792479A EP3092334B1 EP 3092334 B1 EP3092334 B1 EP 3092334B1 EP 14792479 A EP14792479 A EP 14792479A EP 3092334 B1 EP3092334 B1 EP 3092334B1
Authority
EP
European Patent Office
Prior art keywords
drum
flange
support plate
spider
cover
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.)
Not-in-force
Application number
EP14792479.9A
Other languages
German (de)
French (fr)
Other versions
EP3092334A1 (en
Inventor
Uguray KALOGLU
Mecid FILIZ
Irfan Celik
Orhan Daioglu
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 EP3092334A1 publication Critical patent/EP3092334A1/en
Application granted granted Critical
Publication of EP3092334B1 publication Critical patent/EP3092334B1/en
Not-in-force 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis

Definitions

  • the present invention relates to a drum that is suitable for using in laundry washing or washing-drying machines, and the production method thereof.
  • connection members Due to the rotational movement of the drum, forces act in the radial and axial directions onto the connection members that connect the spider arms with the sheet metal and the rear cover. Due to the acting forces, the connection members are deformed in the course of time, risking the detachment of the spider arms from the drum.
  • the aim of the present invention is the realization of a drum, the mechanical strength of which is improved.
  • the drum realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, is composed of a cylindrical body and a cover mounted to the rear side of the body.
  • the body and the cover are connected by means of the seams formed by circumferentially bending and folding outwards the overlapping peripheries of the body and the cover.
  • the drum comprises a drum spider having more than spider arm that drives the body joined by means of the seams, a circular flange where the drum spider is connected to the body and more than one connection member enabling the spider arm to be fixed onto the flange.
  • the drum of the present invention comprises at least one support plate that is disposed on the flange, that prolongs the lifespan of the drum and is produced externally, through which the connection members are passed.
  • the support plate By means of the support plate, the regions where the spider arms are fixed onto the flange are strengthened.
  • the drum is used in laundry washing machines.
  • the drum is used in laundry washing-drying machines.
  • the drum (1) comprises a cylindrical body (2), a circular cover (3) that is fixed to the rear side of the body (2), a circular seam (4) that is produced by circumferentially bending and folding outwards the overlapping peripheries of the body (2) and the cover (3), a drum spider (6) having more than spider arm (5) that enables the movement of transmission elements such as electric motor, belt-pulley, etc. to be transferred to the body (2), a circular flange (7) that is disposed between the body (2) and the seam (4), that forms the rear edge of the body (2), whereto the drum spider (6) is connected, and more than connection member (8) that enables the drum spider (6) to be fixed to the flange (7).
  • the cylindrical body (2) produced from a rectangular sheet metal as in the state of the art is connected with the cover (3).
  • the seam (4) is formed by bending and folding the overlapping peripheries of the cover (3) and body (2) such that the peripheries remain at the outer side of the drum (1).
  • the circular flange (7) extends between the body (2) and the seam (4).
  • the drum (1) of the present invention comprises at least one support plate (9) that is disposed between the connection members (8) and the flange (7) at the regions where the spider arms (5) are fixed to the flange (7).
  • the support plate (9) is an element that is externally produced, separately from the sheet metal.
  • the drum (1) is strengthened at a narrow, strip ring-shaped region where the connection members (8) are connected onto the flange (7).
  • the connection members (8) and/or the flange (7) are prevented from being deformed as a result of the movement of the spider arms (5).
  • the support plate (9) is connected to the flange (7) so as to remain on the outer surface of the flange (7).
  • the support plate (9) is connected to the flange (7) so as to remain on the inner surface of the flange (7).
  • the support plate (9) surrounds the flange (7).
  • the support plate (9) is shaped as a full circle by being bent and strengthens the drum (1) along the flange (7).
  • the support plate (9) extends over the flange (7) and grasps the edge of the body (2) joined with the flange (7).
  • the edges of the body (2) close to the flange (7) are strengthened.
  • the production method of the drum (1) consists of the following steps:
  • the drum (1) is used in laundry washing machines.
  • the drum (1) is used in laundry washing-drying machines.

Landscapes

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

Description

  • The present invention relates to a drum that is suitable for using in laundry washing or washing-drying machines, and the production method thereof.
  • In laundry washing or washing-drying machines, laundry is loaded into a drum, the drum is rotated by means of an electric motor and washing, spin-drying and drying processes are realized. In the state of the art, for the production of the drum, a rectangular sheet metal is bent into a cylinder and the edges that face one another are joined and thus, the hollow cylindrical body of the drum is formed. The front and rear sides of the cylindrical body are covered by a circular front cover, whereon the laundry loading opening is located, and a rear cover. By means of spider arms that are connected to the sheet metal and the rear cover by means of connection members such as screws, etc., energy produced by the electric motor is delivered to the drum, thus enabling the drum to rotate. Due to the rotational movement of the drum, forces act in the radial and axial directions onto the connection members that connect the spider arms with the sheet metal and the rear cover. Due to the acting forces, the connection members are deformed in the course of time, risking the detachment of the spider arms from the drum.
  • In the state of the art European Patent No. EP1520067 , a washing machine drum is explained which comprises a cylindrical body shell and circular front and rear lids, the peripheries of which are connected to the cylindrical shell by means of a seam, and wherein the strength of the said seam is increased against centrifugal forces by being circumferentially stamped. Document EP-A1-1070779 discloses a washing machine drum according to the preamble of independent claim 1.
  • The aim of the present invention is the realization of a drum, the mechanical strength of which is improved.
  • The drum realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, is composed of a cylindrical body and a cover mounted to the rear side of the body. In the production of the drum, the body and the cover are connected by means of the seams formed by circumferentially bending and folding outwards the overlapping peripheries of the body and the cover. The drum comprises a drum spider having more than spider arm that drives the body joined by means of the seams, a circular flange where the drum spider is connected to the body and more than one connection member enabling the spider arm to be fixed onto the flange.
  • The drum of the present invention comprises at least one support plate that is disposed on the flange, that prolongs the lifespan of the drum and is produced externally, through which the connection members are passed. By means of the support plate, the regions where the spider arms are fixed onto the flange are strengthened.
  • In an embodiment of the present invention, the drum is used in laundry washing machines.
  • In another embodiment of the present invention, the drum is used in laundry washing-drying machines.
  • The drum realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
    • Figure 1 - is the exploded view of a drum.
    • Figure 2 - is the perspective view of a drum in the state where the body and the cover are joined.
    • Figure 3 - is the partial perspective view of a drum related to an embodiment of the present invention.
    • Figure 4 - is the partial cross-sectional view of a drum related to an embodiment of the present invention.
    • Figure 5 - is the partial perspective view of a drum related to another embodiment of the present invention.
    • Figure 6 - is the schematic view of a support plate related to an embodiment of the present invention.
  • The elements illustrated in the figures are numbered as follows:
    1. 1. Drum
    2. 2. Body
    3. 3. Cover
    4. 4. Seam
    5. 5. Spider arm
    6. 6. Drum spider
    7. 7. Flange
    8. 8. Connection member
    9. 9. Support plate
  • The drum (1) comprises a cylindrical body (2), a circular cover (3) that is fixed to the rear side of the body (2), a circular seam (4) that is produced by circumferentially bending and folding outwards the overlapping peripheries of the body (2) and the cover (3), a drum spider (6) having more than spider arm (5) that enables the movement of transmission elements such as electric motor, belt-pulley, etc. to be transferred to the body (2), a circular flange (7) that is disposed between the body (2) and the seam (4), that forms the rear edge of the body (2), whereto the drum spider (6) is connected, and more than connection member (8) that enables the drum spider (6) to be fixed to the flange (7). While producing the drum (1), the cylindrical body (2) produced from a rectangular sheet metal as in the state of the art is connected with the cover (3). While joining the cover (3) with the body (2), the seam (4) is formed by bending and folding the overlapping peripheries of the cover (3) and body (2) such that the peripheries remain at the outer side of the drum (1). The circular flange (7) extends between the body (2) and the seam (4).
  • The drum (1) of the present invention comprises at least one support plate (9) that is disposed between the connection members (8) and the flange (7) at the regions where the spider arms (5) are fixed to the flange (7). The support plate (9) is an element that is externally produced, separately from the sheet metal. By means of the support plate (9), the drum (1) is strengthened at a narrow, strip ring-shaped region where the connection members (8) are connected onto the flange (7). Thus, the connection members (8) and/or the flange (7) are prevented from being deformed as a result of the movement of the spider arms (5).
  • In an embodiment of the present invention, the support plate (9) is connected to the flange (7) so as to remain on the outer surface of the flange (7).
  • In an embodiment of the present invention, the support plate (9) is connected to the flange (7) so as to remain on the inner surface of the flange (7).
  • In an embodiment of the present invention, the support plate (9) surrounds the flange (7). In this embodiment, the support plate (9) is shaped as a full circle by being bent and strengthens the drum (1) along the flange (7).
  • In an embodiment of the present invention, the support plate (9) extends over the flange (7) and grasps the edge of the body (2) joined with the flange (7). Thus, by means of the support plate (9), the edges of the body (2) close to the flange (7) are strengthened.
  • According to the present invention, the production method of the drum (1) consists of the following steps:
    • joining the body (2) with the cover (3),
    • forming the seam (4),
    • placing the support plate (9) onto the flange (7) and
    • fixing the drum spider (6) to the flange (7) and the support plate (9) by means of the connection members (8).
  • In an embodiment of the present invention, the drum (1) is used in laundry washing machines.
  • In another embodiment of the present invention, the drum (1) is used in laundry washing-drying machines.

Claims (8)

  1. A drum (1) for a laundry washing or washing-drying machine, comprising
    - a cylindrical body (2),
    - a circular cover (3) fixed to the rear side of the body (2),
    - a circular seam (4) that is produced by circumferentially bending and folding outwards the overlapping peripheries of the body (2) and the cover (3)
    - a drum spider (6) having more than one spider arm (5) that enables the movement of transmission elements such as electric motor, belt-pulley, etc. to be transferred to the body (2),
    - a circular flange (7) that is disposed between the body (2) and the seam (4), that forms the rear edge of the body (2), whereto the drum spider (6) is connected,
    characterized by comprising - more than one connection member (8) that enables the drum spider (6) to be fixed to the flange (7), and
    - at least one support plate (9) that is disposed between the connection members (8) and the flange (7) at the regions where the spider arms (5) are fixed to the flange (7).
  2. A drum (1) as in Claim 1, characterized by the support plate (9) that is disposed on the outer surface of the flange (7).
  3. A drum (1) as in Claim 1 or Claim 2, characterized by the support plate (9) that is disposed on the inner surface of the flange (7).
  4. A drum (1) as in any one of the above claims, characterized by the support plate (9) that surrounds the flange (7).
  5. A drum (1) as in any one of the above claims, characterized by the support plate (9) that extends over the flange (7) and grasps the edge of the body (2), that is joined with the flange (7).
  6. A laundry washing machine characterized by a drum (1) as in any one of the above claims.
  7. A laundry washing-drying machine characterized by a drum (1) as in any one of Claims 1 to 5.
  8. A production method for a drum (1) as in Claim 1, comprising the steps of:
    - joining the body (2) with the cover (3),
    - forming the seam (4),
    - placing the support plate (9) onto the flange (7) and
    - fixing the drum spider (6) to the flange (7) and the support plate (9) by means of the connection members (8).
EP14792479.9A 2013-12-27 2014-10-30 A drum with improved mechanical strength and the production method thereof Not-in-force EP3092334B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201315395 2013-12-27
PCT/EP2014/073344 WO2015096926A1 (en) 2013-12-27 2014-10-30 A drum with improved mechanical strength and the production method thereof

Publications (2)

Publication Number Publication Date
EP3092334A1 EP3092334A1 (en) 2016-11-16
EP3092334B1 true EP3092334B1 (en) 2017-09-20

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ID=51844722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14792479.9A Not-in-force EP3092334B1 (en) 2013-12-27 2014-10-30 A drum with improved mechanical strength and the production method thereof

Country Status (2)

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EP (1) EP3092334B1 (en)
WO (1) WO2015096926A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102639680B1 (en) 2016-12-23 2024-02-26 삼성전자주식회사 Washing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2432465B2 (en) * 1974-07-06 1977-05-12 Gebrüder Thielmann AG, 6341 Sechshelden HORIZONTALLY MOUNTED DRUM FOR A DRUM WASHING MACHINE
IT1313196B1 (en) * 1999-07-21 2002-06-17 Miramondi Srl HIGH SPEED CENTRIFUGE WASHING MACHINE BASKET, WASHING MACHINE BASKET PROVIDED WITH THE ABOVE CRUISE AND
ES2214104B1 (en) 2002-07-03 2005-12-16 Bsh Electrodomesticos España, S.A. WASHER DRUM.
ITTO20090520A1 (en) * 2009-07-10 2011-01-11 Indesit Co Spa CRUISE FOR MACHINES FOR THE TREATMENT OF CLOTHS PROVIDED WITH A ROTATING BASKET AND METHOD OF MANUFACTURE.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
EP3092334A1 (en) 2016-11-16
WO2015096926A1 (en) 2015-07-02

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