EP2381024A1 - Tambour pour machines à laver - Google Patents

Tambour pour machines à laver Download PDF

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Publication number
EP2381024A1
EP2381024A1 EP10425127A EP10425127A EP2381024A1 EP 2381024 A1 EP2381024 A1 EP 2381024A1 EP 10425127 A EP10425127 A EP 10425127A EP 10425127 A EP10425127 A EP 10425127A EP 2381024 A1 EP2381024 A1 EP 2381024A1
Authority
EP
European Patent Office
Prior art keywords
leaf
drum
hinge
damper
plastic
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.)
Granted
Application number
EP10425127A
Other languages
German (de)
English (en)
Other versions
EP2381024B1 (fr
Inventor
Aldo Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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 Candy SpA filed Critical Candy SpA
Priority to ES10425127.7T priority Critical patent/ES2653927T3/es
Priority to EP10425127.7A priority patent/EP2381024B1/fr
Publication of EP2381024A1 publication Critical patent/EP2381024A1/fr
Application granted granted Critical
Publication of EP2381024B1 publication Critical patent/EP2381024B1/fr
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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/10—Doors; Securing means therefor

Definitions

  • the present invention refers to a drum or container for top-loading washing machines.
  • the drum In top-loading washing machines, the drum is supported so as to be able to rotate around a substantially horizontal axis and able to be loaded from the top through an access hatch foreseen in the side wall of the drum.
  • the access hatch usually consists of two leaves, fixed through hinges to two opposite edges of a loading opening in the side wall of the drum.
  • the leaves of the hatch at their free edges and opposite the edges hinged to the drum, have hooking means able to be engaged with one another to keep the hatch closed during the operation of the domestic appliance.
  • the dampers in order to sufficiently brake the opening movement of the leaves, must offer resistance to their movement, corresponding to the force exerted by the torsion springs.
  • dampers suitably sized to prevent violent opening of the leaves are large in size, which on the one hand means difficulty in fixing and receiving the damper in the drum and to the leaf and, on the other hand, an unpleasant appearance for the user.
  • the purpose of the present invention is therefore the provide a drum for washing machines, dryers or washer-dryers having characteristics such as to facilitate the fixing and receiving of the damper in the drum and its fixing to the leaf.
  • a further purpose of the present invention is to provide a drum for washing machines, dryers o washer-dryers with better separation of the connection areas of the damper from the clothes and from the user's hands.
  • Yet another purpose of the present invention is to provide a drum for washing machines, dryers or washer-dryers that is more pleasing to the eye of the user.
  • drum for a washing machine, washer-dryer or tumble-dryer comprising:
  • damping seat and of the damper cavity in a plastic hinge body and in a plastic leaf body, respectively, it is possible to make such seats, for example through injection moulding, at low cost and with the most suitable shape and position for easy connection and receiving of the damper.
  • figure 1 is an exploded perspective view of a hatch area of a washing machine drum before assembly according to an embodiment of the invention
  • figure 2 is a perspective view of the hatch area in figure 1 after assembly, but without leaves;
  • figure 3 is a perspective view of the hatch area in figure 1 after assembly is complete;
  • figure 4 is a perspective view of a first leaf of a washing machine drum according to an embodiment of the invention.
  • figure 5 is a perspective view of a second leaf for a washing machine drum according to an embodiment of the invention.
  • FIGS. 6 and 7 are perspective views of an area of the hinge of a washing machine drum with a torsion spring in an assembly configuration of the leaves and in an operating configuration according to an embodiment
  • figure 8 is a perspective view of a damper for the hatch of the washing machine drum in figures 1, 2 and 3 ;
  • figure 9 is a view of the damper in figure 8 in longitudinal section according to the plane IX-IX in figure 11 ;
  • figure 10 is a view of the damper in figure 8 in longitudinal section according to the plane X-X in figure 11 ;
  • figure 11 is a view of the damper in figure 8 in cross section
  • figure 12 is a side view of the damper in figure 8 .
  • a drum for a washing machine, washer-dryer or tumble-dryer is wholly indicated with reference numeral 1.
  • the drum 1 comprises an access hatch 2 with at least one leaf 3, 4 connected to the drum 1 so as to be able to rotate between a closed position and an open position and biased by elastic means 35 into the open position, as well as a damper 47 having a stationary portion 46 and a mobile portion 48 the relative movement of which is damped, the stationary portion 46 being connected to the drum 1 and the mobile portion 48 being connected to the leaf 3, 4.
  • the drum 1 also comprises a hinge body 36 made of plastic material connected to the metal drum 1 and a leaf body 8 made of plastic material overmoulded onto a metal frame 5 of the leaf 3, 4.
  • the plastic hinge body 36 forms a damping seat 45 that receives the stationary portion 46 of the damper 47 with shape coupling and the plastic leaf body 8 forms a damper cavity 49 that receives a thrusting tab 64 of the mobile portion 48 of the damper 46 with shape coupling or vice-versa.
  • damping seat and of the damper cavity in a plastic hinge body and in a plastic leaf body, respectively, it is possible to make such seats, for example through injection moulding, at low cost and with the most suitable shape and position for easy connection and receiving of the damper.
  • the metal frame 5 of the leaf 3, 4 can form a hooking portion 6 to lock the leaf 3, 4 in the closed position and a hinge portion 7 for the rotary connection of the leaf 3, 4 to the drum 1.
  • the leaf body 8 made of plastic material is advantageously injection overmoulded onto the metal frame 5 so as to form a composite leaf with an outer surface 9 made of plastic material.
  • the leaf body 8 injection overmoulded onto the metal frame 5 can also define a button seat 29 suitable for receiving a button for locking and releasing the connection between the hooking portions 6 of the leaves 3, 4.
  • a step 30 can be formed that defines a hooking area 31 from which some hooks 15, 16 ( fig. 4 ) project or in which some counter-hooking seats 18 ( fig. 5 ) open, so that the hooking areas 31 of the first 3 and second leaf 4 can overlap with the respective outer surfaces 9 arranged substantially flush.
  • the plastic leaf body 8 forms a plurality of first hinge bushings 32 around the hinge portions 7 of the metal frame 5 and, preferably a second plurality of hinge bushings 33 without metallic reinforcement and sized so as to be able to at least partially receive one or more torsion springs 35 ( figures 3 , 6 and 7 ) that push the leaf 3, 4 into the open position.
  • the hinge body 36 made of plastic material forms a plurality of third hinge bushings 37 having a hole to receive the hinge pin 34, as well as one or more fourth hinge bushings 38 sized so as to be able to at least partially receive the aforementioned torsion springs 35 ( figures 3 , 6, 7 ).
  • the hinge body 36 is connected to a metal side wall 39 of the washing machine drum 1 and is configured to form, together with the hinge portions 7 and hinge bushings 32, 33 of the leaves 3, 4, a rotary connection of the leaves to the side wall 39.
  • the side wall 39 of the drum 1 forms a hinge seat 40 that partially receives the hinge body 36, as well as a plurality of band-shaped appendages 41 bent in a loop around the third 37 and fourth hinge bushings 38 and fixed to the side wall 39 (for example through riveting, welding or crimping) so as to lock the hinge body 36 to the side wall 39 ( figure 2 ).
  • appendages 41 can be bent towards the outside of the drum and connected onto its outer surface or, alternatively, they can be bent towards the inside of the drum and fixed to its inner surface.
  • the hinge body 36 in particular a fourth hinge bushing 38 thereof, forms a stop seat 42 that engages a thrusting end 43 of the torsion spring 35 so as to hold it in a stop position ( figure 6 ) in which it does not form an obstacle to the mounting of the leaf 3, 4 to the hinge body 36.
  • the plastic leaf body 8 can form a separating projection 43 suitable for separating the thrusting end 43 of the torsion spring 35 from the stop seat 42 when the leaf 3, 4 is mounted.
  • the damper cavity 49 is shaped so as to wrap around and completely cover the free end of the thrusting tab 64 of the damper 47.
  • FIGS 8 - 12 illustrate an embodiment of the damper 47, specifically developed for the laundry drum 1 of the invention.
  • the stationary portion 46 of the damper 47 comprises a shaft 50 with a through hole 51 to receive the hinge pin 34, as well as two opposite annular shoulders 52 and two longitudinal radial walls 54 that extend between the two shoulders 52 and together with them form two seats for receiving two rubber blocks 53 dipped in a lubricant and to lock them so that they rotate as a unit with the shaft 50.
  • the rubber blocks are preferably made from a closed-cell rubber.
  • the mobile portion 48 has a housing 55 that defines a sealed damping chamber 60 with a circumferential wall 56, an opening 57 for the insertion of the stationary portion 46 together with the rubber blocks 53, as well as a bottom wall 58 and a lid 59 to close the opening 57, both equipped with a hole for the shaft 50 to pass through.
  • the rubber blocks 53 press against an inner surface of the circumferential wall 56, so that their relative movement generates a resistant friction torque.
  • the bottom wall 58 and the lid 59 form respective gasket seats 61, 62 in the passage holes that receive gaskets, for example o-rings, pressing against the shoulders 52.
  • the free ends of the shaft 50 have a coupling surface 63 suitable for a shape coupling rotating as a unit with the damping seat 45 of the hinge body 36 and the aforementioned thrusting tab 64 projects from the circumferential wall 56 of the mobile portion 48, said tab being received in the damper cavity 49 of the plastic leaf body 8.
  • drum 1 for top-loading washing machines, washer-dryers and dryers achieves the purposes defined in the introduction, in particular cost-effective and easy assembly, housing of the damper such as to protect the user's hands and conceal the damper from the user's view and protect the clothes both from dirt and sharp edges of the damper and from the projections and sharp edges of the torsion spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP10425127.7A 2010-04-21 2010-04-21 Tambour pour machines à laver Active EP2381024B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES10425127.7T ES2653927T3 (es) 2010-04-21 2010-04-21 Tambor para lavadoras
EP10425127.7A EP2381024B1 (fr) 2010-04-21 2010-04-21 Tambour pour machines à laver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10425127.7A EP2381024B1 (fr) 2010-04-21 2010-04-21 Tambour pour machines à laver

Publications (2)

Publication Number Publication Date
EP2381024A1 true EP2381024A1 (fr) 2011-10-26
EP2381024B1 EP2381024B1 (fr) 2017-09-27

Family

ID=42932029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10425127.7A Active EP2381024B1 (fr) 2010-04-21 2010-04-21 Tambour pour machines à laver

Country Status (2)

Country Link
EP (1) EP2381024B1 (fr)
ES (1) ES2653927T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108774846A (zh) * 2018-06-28 2018-11-09 安徽凯盛茶业有限公司 一种顶开式滚筒洗衣机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723382A1 (fr) 1994-08-02 1996-02-09 Esswein Sa Battants a securite renforcee pour panier de lave-linge
DE20007903U1 (de) * 1999-05-04 2000-07-20 Electrolux Zanussi Elettrodome Toplader-Waschmaschine
EP1467013A1 (fr) * 2003-04-11 2004-10-13 CANDY S.p.A. Cuve avec un amortisseur rotatif pour machine à laver le linge
EP1582618A1 (fr) * 2004-04-02 2005-10-05 CANDY S.p.A. Lave-linge à chargement par le dessus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723382A1 (fr) 1994-08-02 1996-02-09 Esswein Sa Battants a securite renforcee pour panier de lave-linge
DE20007903U1 (de) * 1999-05-04 2000-07-20 Electrolux Zanussi Elettrodome Toplader-Waschmaschine
FR2793265A1 (fr) 1999-05-04 2000-11-10 Electrolux Zanussi Elettrodome Lave-linge a chargement par le dessus
EP1467013A1 (fr) * 2003-04-11 2004-10-13 CANDY S.p.A. Cuve avec un amortisseur rotatif pour machine à laver le linge
EP1582618A1 (fr) * 2004-04-02 2005-10-05 CANDY S.p.A. Lave-linge à chargement par le dessus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108774846A (zh) * 2018-06-28 2018-11-09 安徽凯盛茶业有限公司 一种顶开式滚筒洗衣机

Also Published As

Publication number Publication date
ES2653927T3 (es) 2018-02-09
EP2381024B1 (fr) 2017-09-27

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