EP0066316B1 - Séchoir à tambour - Google Patents

Séchoir à tambour Download PDF

Info

Publication number
EP0066316B1
EP0066316B1 EP82200568A EP82200568A EP0066316B1 EP 0066316 B1 EP0066316 B1 EP 0066316B1 EP 82200568 A EP82200568 A EP 82200568A EP 82200568 A EP82200568 A EP 82200568A EP 0066316 B1 EP0066316 B1 EP 0066316B1
Authority
EP
European Patent Office
Prior art keywords
drum
flange
bearing
air
strip
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.)
Expired
Application number
EP82200568A
Other languages
German (de)
English (en)
Other versions
EP0066316A1 (fr
Inventor
Peter Philips Domestic Appliances Limited Cash
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.)
Whirlpool International BV
Original Assignee
Philips Electronic and Associated Industries Ltd
Philips Electronics UK Ltd
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Electronic and Associated Industries Ltd, Philips Electronics UK Ltd, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Electronic and Associated Industries Ltd
Priority to US06/427,421 priority Critical patent/US4491273A/en
Publication of EP0066316A1 publication Critical patent/EP0066316A1/fr
Application granted granted Critical
Publication of EP0066316B1 publication Critical patent/EP0066316B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 

Definitions

  • This invention relates to a tumble drier including a cabinet and a drum mounted therein, one end of which drum is pivoted for rotation about a horizontal axis and the other end of the drum has a loading aperture and is provided with support means including first and second parallel concentric flanges, the first of which is fixed relative to the cabinet and the second of which is located on the drum around the periphery of the aperture, the two flanges defining a gap therebetween which is closed by an air seal, the support means further including bearing means carried on said first flange for supporting the drum via the other flange, the bearing means comprising two or more bearing pads spaced around the circumference of the first flange with the intervening spaces between the pads occupied by said air seal.
  • Such a drier is disclosed in United States patent US-A-3,027,653.
  • the cost of manufacturing a tumble drier depends not only on the costs of the individual components of the construction but also on that of the labour required to assemble the drier. If the air sealing means at the front of the drum is difficult to assemble this can cause an unjustifiable increase in the manufacturing cost of the appliance.
  • a disadvantage of the use of felt is that it is not inherently a very springy material so that if it is subjected to being repeatedly compressed it will eventually become flattened and then will leave a gap through which an air leakage can occur. Since the two concentric flanges of the drier are made of sheet metal or plastics material there is a risk that at least one of them will become distorted slightly from a truly circular shape either whilst it is being formed or whilst being stored before the assembly operation. If this has happened, the gap between the two flanges instead of being the same width all round the circumference of the flanges will be wider than normal in some places and narrower than normal in other places.
  • felt sealing material usually has a close random fibrous structure, particles of moisture which can be expected to be present in the air stream will tend to be retained in the interior of a body of felt and over a long period this may cause premature deterioration of the felt.
  • An object of the present invention is to provide an air sealing means which can be assembled in a very simple manner and which uses a smaller number of component parts.
  • a tumble drier of the kind described in the opening paragraph, characterised in that said air seal is a single-strip of a brush-like air sealing material which extends substantially entirely around said first flange between and beneath the bearing pads and which is secured in position by the pads, the bristles of said brush having a length greater than the thickness of said gap.
  • the bristles of the air seal strip extend parallel to each other and, compared with the randomly-arranged and closely-matted fibres of a felt strip, have a relatively open texture which does not tend to trap water particles. This arrangement further makes it possible to reduce the number of parts needed to be handled by the assembly worker and thus the means needed to fasten these parts can also be reduced.
  • the bearing pads are used to position the air sealing material on the flange and may possibly provide the sole fastening means necessary to fix the sealing material to the flange.
  • a bearing pad can also be used to cover the two ends of the sealing strip on the flange so that these ends are securely held. This eliminates the need for any precise cutting to length of the strip or the formation of a butt joint.
  • the said air seal strip may be carried on a resilient backing strip which has a width greater than that of the air seal strip, the backing strip being fully inserted into the annular channel whereby the air seal strip will be supported at a predetermined fixed distance from the bottom of the channel.
  • the presence of the resilient backing at least helps to retain the air seal strip against the side wall of the channel and it ensures that the air seal strip is located in a position which is spaced away from the free edge of the flange which extends into the channel. This avoids the risk of any damage to the strip by a rough and/or sharp edge on said flange.
  • the air seal strip is of polypropylene. This ensures that the material of the strip is resistant to being deformed by compression and is sufficiently resilient at the operating temperature of the drier to provide a fully effective air seal in the gap between the flanges. The material does not absorb water and it does not deteriorate when exposed to water vapour at the drier operating temperature.
  • FIG. 1 shows part of the front cabinet wall of a tumble drier in a schematic view where the door hinge, door seals, and most of the working components have been omitted.
  • a door 1 of the drier is located in an opening in the front cabinet wall 2 so that access may be gained to a loading aperture of a rotatable drum 3 in which a laundry load may be placed for the drying operation.
  • the drum 3 is mounted on a central pivot to enable it to be rotated about a horizontal axis.
  • the drum carries an axially-directed flange 4 which is supported in an annular channel 5 carried on a door surround 6.
  • the annular channel 5 thus surrounds the loading aperture of the drum 3 and makes it easy to insert and remove the articles of a laundry load without causing any snagging of these articles.
  • the door 1 carries a perforated guard ring 7 which partly closes the loading aperture when the door is in a closed condition.
  • the annular channel 5 has an outer-side wall 8 and an inner side wall 8a.
  • Side wall 8 constitutes a first parallel concentric flange for cooperation with a second flange formed by the flange 4 of the drum.
  • the side wall 8 carries four bearing pads 9 which are clipped on to and are spaced circumferentially round the wall 8 in an arrangement as shown somewhat diagrammatically in Figure 2 which is an end view of the channel 5.
  • an air sealing strip comprising upstanding fibres 10 made of polypropylene which are supported on a flexible polypropylene base 11.
  • the sealing strip thus has a brush-like construction and, whilst the fibres can be squashed without being damaged, the fibres tend to remain close together so that an air flow through the body of the material in a direction parallel to the base is hardly possible.
  • the air sealing material is in the form of a single strip which is placed round the inner surface of the wall 8 and then passes beneath each bearing pad 9.
  • the two ends 12 of the strip are located beneath one of the bearing pads 9 so that they are securely held in place.
  • a great accuracy of cutting is not necessary since the concealment of the two ends 12 beneath one of the bearing pads 9 means that the two ends do not have to form a butt joint provided that any gap between the ends remains covered by the pad 9.
  • Figure 3 shows on a greatly enlarged scale a cross-sectional view of the lower part of the seal in Figure 1.
  • the drum flange 4 has been moved out of the annular channel in a horizontal direction, which has allowed the fibres 10 of the air sealing material to regain their full height.
  • the outer side wall 8 supports a bearing pad 9 which is shaped in the form of a clip which fits round the wall 8 and provides a bearing surface on the inner side of the wall 8 for supporting the drum flange 4.
  • the wall 8 carries a tooth 13 which engages in a slot 14 of the pad 9. If it should be required to remove the pad 9 from the wall 8, a screwdriver blade may be inserted into an opening 15 at the foot of the wall 8 to move the slot 14 away from the tooth 13.
  • the base 11 of the air sealing strip is initially mounted on a thin resilient backing strip 16 which has a width greater than that of the air sealing strip.
  • the air sealing strip carried on the backing strip 16 may then be easily cut to length, inserted into the annular channel 5 and secured into place by using the four bearing pads (9) as fixing clips.
  • One of the bearing pads 9 is positioned to cover the two ends 12 of the air sealing strip so that a complete circumferential seal will be achieved.
  • the side of the resilient backing strip 16 which carries the air sealing strip also includes a longitudinal ridge 17.
  • the purpose of the ridge 17 is to support the portion of the bearing pad 9 lying within the channel so that the innermost surface of the bearing pad 9 will lie parallel to the drum axis in order to provide a maximum effective contact area for the resulting bearing surface.
  • Figure 4 shows a view of part of the annular channel 5 before the drum flange 4 has been inserted therein.
  • the channel 5 includes the outer side wall 8 which supports the bearing pad 9.
  • the pad 9 additionally secures the resilient backing strip 16 supporting the air seal material base carrying the resilient fibres 10.
  • the two ends 12 of the base are secured by the bearing pad 9.
  • the eventual position of the drum flange 4 when this is inserted in the channel 5 is indicated by dotted lines.
  • annular channel 5 should be carried on the door surround 6, in a different embodiment the annular channel 5 might be carried on the rotatable drum 3 whilst the axial flange 4 could be part of the door surround 6.
  • the sealing strip and the bearing pads 9 might be secured to the inner wall of the channel 5.
  • the flange to which the air sealing strip is fitted is part of an annular channel 5.
  • the other wall (e.g. 8a) of the channel may be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Seal Device For Vehicle (AREA)

Claims (2)

1. Séchoir à tambour, formé par un carrosserie (2) et un tambour (3) monté dans cette carrosserie, tambour qui d'un côté est supporté de façon à pouvoir tourner autour d'un axe horizontal et qui de l'autre côté présente une ouverture de chargement et est muni de moyens de support comportant des première et deuxième joues (8, 4) dont la première joue (8) est immobile par rapport à la carrosserie (2) alors que la deuxième joue (4) se trouve sur le tambour (3) autour de l'ouverture de chargement de celui-ci, ces deux joues définissant ensemble une fente qui est obturée par un joint d'étanchéité à l'air, tandis que lesdits moyens de support comportent aussi de éléments de support (9) élaborés sur ladite première joue (8) et servant à supporter le tambour (3) par l'intermédiaire de l'autre joue (4), ces éléments de support (9) comprenant au moins deux segments (9) répartis équidistamment sur la circonférence de la première joue (8), alors que les interstices entre lesdites segments (9) sont occupés par ledit joint d'étanchéite à l'air, caractérisé en ce que ledit joint d'étanchéité à l'air est formé par un seul ruban (10, 11) de matériau hérissé de poils qui s'étend quasiment suivant le pourtour complet de la première joue (8) entre et sous les segments de support (9) qui maintiennent ledit matériau en place, alors que la longueur des poils (10) de cette borsse est supérieure à l'épaisseur de ladite fente.
2. Séchoir à tambour selon la revendication 1, caractérisé en ce que les deux extrémités du ruban (10, 11) sont maintenues en place sous un desdits éléments de support (9).
EP82200568A 1981-05-18 1982-05-11 Séchoir à tambour Expired EP0066316B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/427,421 US4491273A (en) 1982-01-18 1982-09-29 Snow gun

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8115161A GB2098712A (en) 1981-05-18 1981-05-18 Air seal for tumbler drier door
GB8115161 1981-05-18

Publications (2)

Publication Number Publication Date
EP0066316A1 EP0066316A1 (fr) 1982-12-08
EP0066316B1 true EP0066316B1 (fr) 1985-08-07

Family

ID=10521872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200568A Expired EP0066316B1 (fr) 1981-05-18 1982-05-11 Séchoir à tambour

Country Status (3)

Country Link
EP (1) EP0066316B1 (fr)
DE (2) DE8213442U1 (fr)
GB (1) GB2098712A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19542563A1 (de) * 1995-11-15 1997-05-22 Flender A F & Co Vorrichtung zur Abdichtung einer Schutzhaube eines Mühlenkörpers
CN106222922A (zh) * 2016-08-27 2016-12-14 王晓望 一种洗衣机用可拆装洗鞋装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000108A (en) * 1956-06-11 1961-09-19 Whirlpool Co Coaxial flow drier
US3027653A (en) * 1958-05-14 1962-04-03 Gen Motors Corp Domestic appliance
US3399464A (en) * 1966-09-16 1968-09-03 Gen Electric Clothes dryer
GB1496655A (en) * 1973-12-21 1977-12-30 Ti Domestic Appliances Ltd Tumbler dryers
US3875686A (en) * 1974-01-28 1975-04-08 Schlegel Mfg Co Seal for clothes dryer
US3932947A (en) * 1974-12-09 1976-01-20 The Schlegel Manufacturing Company Bearing and seal for tumbler belt clothes dryer
GB1541001A (en) * 1976-06-08 1979-02-21 Schlegel Uk Ltd Seals

Also Published As

Publication number Publication date
EP0066316A1 (fr) 1982-12-08
DE8213442U1 (de) 1982-10-28
GB2098712A (en) 1982-11-24
DE3265209D1 (en) 1985-09-12

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