(19)
(11)EP 2 513 367 B2

(12)NEW EUROPEAN PATENT SPECIFICATION
After opposition procedure

(45)Date of publication and mention of the opposition decision:
14.09.2022 Bulletin 2022/37

(45)Mention of the grant of the patent:
17.06.2015 Bulletin 2015/25

(21)Application number: 10801157.8

(22)Date of filing:  20.12.2010
(51)International Patent Classification (IPC): 
D06F 37/26(2006.01)
(52)Cooperative Patent Classification (CPC):
D06F 37/266
(86)International application number:
PCT/EP2010/070206
(87)International publication number:
WO 2011/073443 (23.06.2011 Gazette  2011/25)

(54)

FRONT LOADING WASHING MACHINE HAVING A GASKET

WASCHMASCHINE MIT FRONTEINSCHUB MIT DICHTUNG

MACHINE À LAVER À CHARGEMENT FRONTAL COMPRENANT UN JOINT


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 20.12.2009 TR 200909579

(43)Date of publication of application:
24.10.2012 Bulletin 2012/43

(73)Proprietor: BSH Hausgeräte GmbH
81739 München (DE)

(72)Inventors:
  • ARABACI, Ferudun
    59880 Tekirdag (TR)
  • KARABIYIK, Tuncay
    59600 Tekirdag (TR)
  • TÜRE, Gültekin
    59850 Tekirdag (TR)


(56)References cited: : 
EP-A1- 2 078 777
WO-A1-2006/027149
WO-A1-2008/104420
US-A1- 2005 178 169
US-B2- 7 357 006
WO-A1-02/12612
WO-A1-2007/063072
US-A1- 2004 107 742
US-A1- 2007 295 037
  
  • Technical drawing - First sheet
  • Technical drawing - Second sheet
  • Technical drawing - Details selections
  • Invoice of washing machine AWO 5245
  • Invoice of washing machine WA CARE 24 SD
  • Affidavit signed by Mr Crescenzo lannicelli;
  • Revisions A to H ol Whirlpool?s technical drawing 461971408401;
  • Invoices concerning the prior uses AWO 5245 and WA CARE 24 SD;
  • Excerpts from the Enterprise Resource Planning SAP;
  • Excerpt from the Enterprise Resource Planning SAP;
  • Invoices issued by Pasell S.r.l., and translation into English thereof;
  • Delivery note of a washing machine AWO/D 771P97, and translation intoEnglish thereof;
  • Serial number ot the washing machine and referred to in t17;
  • Rating label of the washing machine referred to in E17.
  • Affidavit in the name of Mr. Salvatore de Filippo
  • A register of the supplier Pasell S.r.l. related to the bellow 461971408401;
  • Translation in English of pages of E22;
  • A photo of a detail of the sample that will be shown during the oral proceedings.Further, the opponent announced that he would bring to the oral proceedings a sample of the bellow 461971408401.
  • Picture of the original of the invoice E17
  • Technical drawings used by the witness when describing the ?EUREKA 473" washing machine platform.
  


Description


[0001] The present invention relates to front loading washing machines/drying machines which has a gasket providing sealing between the front door and the washing drum.

[0002] In front loading washing machines/drying machines, there are gaskets providing sealing between the door opening the front panel has, and the washing drum. The gasket prevents the water coming from the drum and the front panel to run over outwardly together with the help of the front door closing the door opening. The gasket has front and rear flanges which are fixed to an outlet facing the door opening of a tub encompassing the drum and which are fixed to the door opening. Between the front and the rear flanges, there is an elastic part which compensates the movement of the drum during processes like washing or drying. During the cloth washing process, since the drum rotates, the clothes may advance towards the gasket and they may get stuck. In order to eliminate this situation, kickers are formed on the gasket's rear flange which is fixed to the tub. Kickers are described in the US patent US7357006. A flap of the kicker pushes a stuck cloth back inside the drum using the rotation movement of the drum.

[0003] Another front loading washing machine is disclosed in EP 2 078 777 A1. Said washing machine comprises a front panel with a door opening providing access to a rotating drum where clothes to be washed are placed, a tub which encompasses the periphery of the drum and which has an outlet facing the door opening and a gasket providing sealing between the tub and the door opening by encompassing the door opening from a front flange and by encompassing the outlet from a rear flange peripherally. A further washing machine comprising a bellow seal disposed between a tub and the housing of the washing mashing is disclosed in US 2007/0295037 A1.

[0004] The object of the subject matter invention is to decrease the damage given to the cloth by the gasket in a front loading washing machine.

[0005] In order to reach said object, the present invention is a front loading washing machine comprising a front panel with a door opening which provides access to a rotating drum where the clothes to be washed are placed; a tub which encompasses the periphery of the drum and which has an outlet facing the door opening; a gasket providing sealing between the tub and the door opening by encompassing the door opening from a front flange and by encompassing the outlet from a rear flange peripherally; at least one first flap which extends radially inwards from the rear flange of the gasket and which provides the pushing of the clothes to be washed towards the drum during the rotation of the drum; and at least one curvilinear edge which forms the radial inward end of the first flap. Since the curvilinear edge prevents the clothes from being caught, during rotation, the clothes which advance from the drum to the gasket or which get stuck between the drum and the gasket are not torn when they are passing from the flap's curvilinear edge which is on the radial inward end. Thus, the first flap sends the cloth back inside the drum by means of a soft response. In a preferred embodiment, the first flap is made of for instance, plastic, rubber, etc. material which is flexible so as to form an arc.

[0006] There is at least one second flap which has a distance with the first flap the kicker has and which extends radially inwards. The second flap increases the total flap distance and it provides the pushing of the clothes in a bigger part at the rear flange outlet.

[0007] The second flap comprises at least one second curvilinear edge forming the radial inward end. By means of this, there is also no obstacle on the second flap which will lead to the clothes to get caught and the second flap realizes the pushing function in a similar manner to the first flap.

[0008] There is a first ring in circle arc form which exists at the first flap's transverse end adjacent to the rear flange, and/or there is a second ring in circle arc form which exists at the opposite end thereof. Since the ring parts where the flap joins with the rear flange is in the form of a circle arc, the clothes which are rotated by the drum are prevented from being caught between the flap and the rear part, and said clothes slide on the circle arc and they return to the drum.

[0009] Said second flap comprises a first ring in circle arc form which exists at the second flap's end adjacent to the rear flange, and/or there is a second ring in circle arc form which exists at the opposite end thereof. By means of this, cloth is prevented from being caught between the second flap and the rear flange.

[0010] In a preferred embodiment of the present invention, the In a preferred embodiment of the present invention, there is a bridge which joins the first flap's edge and the second flap's edge facing each other. The bridge provides the cloth load arriving to the first or second flap to be shared by the other flap. In this case, the bridge provides a serially connected arc characteristic for a flexible flap structure.

[0011] In a preferred embodiment of the present invention, the first and the second flap are symmetrical with respect to an axis dividing the bridge in two parts from the middle thereof. Thus, by means of the structure joint by the bridge, the forces coming from the clothes are distributed to the flaps proportionally with the distance.

[0012] In a preferred embodiment of the present invention, the curvilinear edge is in the form of a circle arc. Thus, in case the cloth, which advances from the outlet to the gasket because of the rotation of the drum, contacts to the flap from the curvilinear edge thereof, the cloth is pushed towards the drum by means of a force increasing along the circle arc.

[0013] In a preferred embodiment of the present invention, the radial length of the bridge is smaller than the radial length of the first and/or second flap. Thus, the edges of the flaps' parts which are longer than the bridge can realize the pushing function separately.

[0014] In a preferred embodiment of the present invention, the circle arc diameter of the curvilinear edge and/or the second curvilinear edge is greater than the diameter of the first and/or second ring diameter. By means of this, the flaps flex in a simpler manner.

[0015] In a preferred embodiment of the present invention, the length of said curvilinear edge and/or said second curvilinear edge is substantially equal to the length of the corresponding first and/or second flap. In other words, the curvilinear edge extends along the flap's end close to the cloth. Therefore, the clothes are prevented from being caught along the edge thereof which contacts with the clothes. In a probable embodiment of the subject matter invention, said circular edge has a C shaped cross section. Thus, the cloth advancing from the drum towards the outlet is prevented from being caught, and moreover, it is prevented from being torn.

[0016] The additional characteristics and advantages of the subject matter invention are disclosed from the example embodiments giving reference to the accompanied figures.

[0017] In Figure 1a, the lateral cross section a front loading washing machine comprising a representative embodiment of the subject matter gasket is given.

[0018] In Figure 1b, the frontal perspective view of a gasket is given which is used in the front loading washing machine illustrated in Figure 1.

[0019] In Figure 2, a frontal perspective view of an alternative embodiment of the subject matter gasket is given.

[0020] In Figure 1a, the lateral representative view of a front loading washing machine 1 is given. There is a front panel 2 which forms the front face of the rectangular washing machine's 1 body, which is planar and which has a door opening 3 with a circular hole form thereon. A circular front door 4 closes the door opening 3. The door opening 3 opens to a washing drum 6 carried inside the washing machine 1 body. The drum 6 is in the form of a horizontal cylinder which is perforated and which has a circular opening on a front face thereof facing the door opening 3. The other rear surface of the drum 6 is connected to a motor 7 from the center thereof. The motor 7 rotates the drum 6 in the horizontal axis during processes like washing, rinsing and drying. A tub 5 encompasses the drum 6 peripherally so that there is a space in between and so that an outlet 8 thereof facing the door opening 3 is open. The washing and rinsing liquids and the liquids formed during drying are inside the tub 5. Therefore, in order to prevent the leakage of the washing or drying liquids through the space between the door 4 and the door opening 3, a gasket 10 is fixed between the door opening 3 and the tub 5 outlet 8.

[0021] According to Figure 1b, the gasket 10 has a similar circular form to the door opening 3 and the tub's 5 outlet 8 facing the door opening 3. In order for the gasket 10 to be fixed to the front door 4, there is a front flange 14 bent outwardly. The front flange 14 has two extensions. The front flange 14 is fixed to the front panel 2 from the outside by means of the outer extension and from inside by means of the inner extension. In order for the gasket 10 to hold onto the tub 5, there is a rear flange 12 bent outwardly on the rear end of the tub 5. The rear flange 12 has three extensions. The rear flange 12 is fixed to the tub 5 from the outlet's 8 outer edge by means of the outermost extension and it is fixed from the inner edge thereof by means of the adjacent extension. The rear flange's extension which is far away from the outlet 8 and which is close to the door opening 3 forms a circular flange and prevents the clothes to go out. Though, the clothes can get stuck between the gasket 10 and the drum's 6 peripheral edge close to the outlet 8.

[0022] A kicker 20 formed at the upper part of the rear flange 12 is illustrated in Figures 1b and 2. The kicker 20 is formed so as to comprise a first flap 21 extending radially inwards the tub 5 from the rear flange 12 edge thereof on the upper part of a horizontal axis dividing the circular gasket 20 in the middle, and so as to comprise an auxiliary second flap 26 similar to said first flap 21. The first and the second flaps 21, 26 are sequenced adjacently so as to have a distance in between. A bridge 25 joins the first and second flap's 21, 26 edges facing each other. The gasket 10 and the kicker 20 which is the extension of the gasket 10 are made of a flexible material.

[0023] The first flap 21 has a curvilinear edge 22 extending inwards the rear flange 12 in other words, extending radially inwards. The first flap 21 is tab with a curvilinear edge 22 which changes radially in the form of an arc of a circle whose center is on the rear flange 12 plane. The first ring 23 and the second ring 24 which exist on the two ends where the first flap 21 contacts with the rear flange 12 are formed as a circle arc with opposite direction to the circle arc of the curvilinear edge 22 of the first flap 21, however, the first ring 23 and the second ring 24 are formed with recesses.

[0024] The second flap 26 is symmetric to the first flap 21 with respect to an orthogonal axis passing in the middle of the distance between the first flap 21 and the second flap 26. The second flap 26 is a tab which forms the second curvilinear edge 27 and which extends radially inwards. The second curvilinear edge 27 is in the form of a circle arc. The two edges of the second flap 26 intersecting with the rear flange 12 form the first ring 28 and the second ring 29 respectively. The first and the second rings 28 are formed with one each recess in circle arc form which both have opposite direction with the second curvilinear edge 27.

[0025] In the present embodiment, the first and the second flaps 21, 26 have equal edge radius R1. The edge radius R1 center is on the rear flange 12 plane, however, it is outside of the covered area. The first and the second ring radiuses R2, R3 which the circular recess forming the first and second rings 28, 29 has is on the rear flange 12 plane and they are inside the covered area. In the present embodiment, the first and second ring radiuses R2, R3 of both the first and the second flaps 21, 26 are equal to each other.

[0026] After the front door 4 is opened, the clothes (not illustrated in the figure) to be washed are taken into the drum 6 through the door opening 3. The washing liquid is transferred from the tub 5 to the drum 6 by means of the perforated surface. During the rotation of the drum 6 by means of the motor 7, the washing process is executed. Meanwhile, the drum 6 moves and the liquid in the tub 5 has a trend to go outwardly from the front door 4. The gasket 10 extending between the front door 4, the door opening 3 and the tub 5 prevents this. The movement of the drum 6 in the three axes does not give damage to the gasket 10 by means of the flexing part 16 of the gasket 10. During rotation, when the clothes inside the drum 6 direct outwardly or when they are caught by the gasket, if they are in the bottom part of the rear flange 12, they are pushed back into the drum by means of the rear flange's 12 flange structure belonging to the kicker 20. However, when the clothes lifted up by the drum 6 reach the rear flange 12, in this part they are pushed back into the drum 6 by means of the first and second flaps 21, 26 which extend into the rear flange 12 and by means of the bridge 25 in between. The pushing process is realized by flexing and thereby by applying opposite force, since the kicker 20 has a flexible structure like plastic and rubber. The clothes contact to the curvilinear edge 22, 27 at the first and second flap's 21, 26 end part extending into the rear flange 12, thereby the clothes contact to the circular form and they are pushed into the drum. Since the curvilinear edge 22 does not comprise any cornered form, the clothes are not caught by the first or second flap 21, 26. The curvilinear edge 22 forms curved structures similar to an S, where one of the curved structures is formed with the following first ring 23 and the other curved structure is formed with the following second ring 24, and one curved structure is wide and the other curved structure is narrow. In alternative embodiments, more than two flaps can be used, for instance, three or four flaps can be used. Besides, the curvilinear edge 22 may be formed of different curves, for instance hyperbolic etc. curves instead of circle arc or the curvilinear edge 22 may comprise these curves. Some part of the first and/or second flap 21, 26 can be formed so as not to face the outlet 8, however, it can be formed so as to face inside the gasket 10 or face inside the drum 6.
REFERENCE NUMERALS
1 Washing machine 20 Kicker
2 Front panel 21 First flap
3 Door opening 22 Curvilinear edge
4 Front door 23 First lap
5 Tub 24 Second lap
6 Drum 25 Bridge
7 Motor 26 Second flap
8 Outlet 27 Second curvilinear edge
10 Gasket 28 First ring
12 Rear flange 29 Second ring
14 Front flange R1 Edge radius
16 Flexing part R2 First ring radius
  R3 Second ring radius



Claims

1. A front loading washing machine (1) comprising a front panel (4) with a door opening (3) providing access to a rotating drum (6) where clothes to be washed are placed; a tub (5) which encompasses the periphery of the drum (6) and which has an outlet (8) facing the door opening (3); a gasket (10) providing sealing between the tub (5) and the door opening (4) by encompassing the door opening (4) from a front flange (14) and by encompassing the outlet (8) from a rear flange (12) peripherally; at least one first flap (21) which extends radially inwards from the rear flange (12) of the gasket (10) and which provides pushing the clothes to be washed towards the drum (6) during the rotation of the drum (6), wherein comprising at least one curvilinear edge (22) which forms a radial inward end of the first flap (21), characterized by at least one second flap (26) is provided which has a distance with the first flap (21) and which extends radially inwards through the rear flange (12), wherein the second flap (26) comprises at least one second curvilinear edge (27) forming the radial inward end, a first ring (23) in circle arc form is provided at the first flap's (21) transverse end adjacent to the rear flange (12) and/or a second ring (24) in circle arc form is provided at the opposite end thereof, wherein said second flap (21) comprises a first ring (28) in circle arc form which exists at the second flap's (21) end adjacent to the rear flange (12) and/or a second ring (29) in circle arc form which exists at the opposite end thereof.
 
2. A front loading washing machine (1) according claim 1, wherein a bridge (25) is provided which joins the first flap's (21) edge and the second flap's (26) edge facing each other.
 
3. A front loading washing machine (1) according to claim 2, wherein the first and the second flap (21, 26) are symmetrical with respect to an axis dividing the bridge (12) in two parts from the middle thereof.
 
4. A front loading washing machine (1) according to any of the preceding claims, wherein the curvilinear edge (22) is in the form of a circle arc.
 
5. A front loading washing machine (1) according to claim 2, wherein the radial length of the bridge (25) is smaller than the radial length of the first and/or second flap (21, 26).
 
6. A front loading washing machine (1) according to one of preceding claims, wherein the circle arc diameter of the curvilinear edge (22) and/or the second curvilinear edge (27) is greater than the diameter of the first and/or second ring (24, 29) diameter.
 
7. A front loading washing machine (1) according to any of the preceding claims, wherein the length of said curvilinear edge (22) and/or said second curvilinear edge (27) is substantially equal to the length of the corresponding first and/or second flap (21).
 
8. A front loading washing machine (1) according to any of the preceding claims, wherein said curvilinear edge (22) has a C shaped cross section.
 


Ansprüche

1. Frontlader-Waschmaschine (1), die Folgendes umfasst: eine Frontplatte (4) mit einer Türöffnung (3), die Zugang zu einer rotierenden Trommel (6) gewährt, in die zu waschende Kleidung gelegt wird, eine Außentrommel (5), die den Umfang der Trommel (6) umgibt und einen der Türöffnung (3) zugewandten Ablauf (8) aufweist, eine Manschette (10), die zwischen der Außentrommel (5) und der Türöffnung (4) für eine Abdichtung sorgt, indem sie die Türöffnung (4) von einem vorderen Flansch (14) aus und den Ablauf (8) von einem hinteren Flansch (12) aus in Umfangsrichtung umspannt, mindestens eine erste Klappe (21), die von dem hinteren Flansch (12) der Manschette (10) aus radial nach innen verläuft und dafür sorgt, dass die zu waschende Kleidung bei Rotieren der Trommel (6) zur Trommel (6) hin gedrückt wird, wobei sie mindestens einen kurvenförmigen Rand (22) umfasst, der ein radial innen liegendes Ende der ersten Klappe (21) bildet, dadurch gekennzeichnet, dass mindestens eine zweite Klappe (26) bereitgestellt ist, die sich in einem Abstand zur ersten Klappe (21) befindet und durch den hinteren Flansch (12) radial nach innen verläuft, wobei die zweite Klappe (26) mindestens einen zweiten kurvenförmigen Rand (27) umfasst, der das radial innen liegende Ende bildet, ein erster Ring (23) in Kreisbogenform am querverlaufenden Ende der ersten Klappe (21) neben dem hinteren Flansch (12) bereitgestellt ist und/ oder ein zweiter Ring (24) in Kreisbogenform am gegenüberliegenden Ende davon bereitgestellt ist, wobei die zweite Klappe (21) einen ersten Ring (28) in Kreisbogenform an dem Ende der zweiten Klappe (21) neben dem hinteren Flansch (12) und/ oder einen zweiten Ring (29) in Kreisbogenform am gegenüberliegenden Ende davon umfasst.
 
2. Frontlader-Waschmaschine (1) nach Anspruch 1, bei der eine Brücke (25) bereitgestellt ist, die den Rand der ersten Klappe (21) mit dem diesem gegenüberliegenden Rand der zweiten Klappe (26) verbindet.
 
3. Frontlader-Waschmaschine (1) nach Anspruch 2, bei der die erste und die zweite Klappe (21, 26) in Bezug auf eine Achse, die die Brücke (12) von ihrer Mitte aus in zwei Teile teilt, symmetrisch sind.
 
4. Frontlader-Waschmaschine (1) nach einem der vorhergehenden Ansprüche, bei der der kurvenförmige Rand (22) die Form eines Kreisbogens aufweist.
 
5. Frontlader-Waschmaschine (1) nach Anspruch 2, bei der die radiale Länge der Brücke (25) geringer ist als die radiale Länge der ersten und/ oder der zweiten Klappe (21, 26).
 
6. Frontlader-Waschmaschine (1) nach einem der vorhergehenden Ansprüche, bei der der Kreisbogendurchmesser des kurvenförmigen Randes (22) und/ oder des zweiten kurvenförmigen Randes (27) größer ist als der Durchmesser des ersten und/ oder des zweiten Rings (24, 29).
 
7. Frontlader-Waschmaschine (1) nach einem der vorhergehenden Ansprüche, bei der die Länge des kurvenförmigen Randes (22) und/ oder des zweiten kurvenförmigen Randes (27) im Wesentlichen der Länge der entsprechenden ersten und/ oder zweiten Klappe (21) entspricht.
 
8. Frontlader-Waschmaschine (1) nach einem der vorhergehenden Ansprüche, bei der der kurvenförmige Rand (22) einen C-förmigen Querschnitt aufweist.
 


Revendications

1. Lave-linge (1) à chargement frontal, comprenant un panneau avant (4) comportant une ouverture de hublot (3) donnant accès à un tambour rotatif (6) dans lequel sont placés des vêtements à laver ; une cuve (5) qui entoure la périphérie du tambour (6) et qui comporte une sortie (8) faisant face à l'ouverture du hublot (3) ; une manchette (10) assurant l'étanchéité entre la cuve (5) et l'ouverture de hublot (4), en entourant l'ouverture de hublot (4) à partir d'une lèvre avant (14) et en entourant la sortie (8) à partir d'une lèvre arrière (12), de manière périphérique ; au moins une première bavette (21) qui s'étend radialement vers l'intérieur à partir de la lèvre arrière (12) de la manchette (10) et qui, au cours de la rotation du tambour (6), fait que les vêtements à lavés sont poussés vers le tambour (6), dans lequel comprenant au moins un bord curviligne (22) qui forme une extrémité radiale, tournée vers l'intérieur, de la première bavette (21) caractérisé en ce qu'il est prévu qu'au moins une deuxième bavette (26) qui est à distance de la première bavette (21) et qui s'étend radialement vers l'intérieur, à travers la lèvre arrière (12), dans lequel la deuxième bavette (26) comprend au moins un deuxième bord curviligne (27) formant l'extrémité radiale tournée vers l'intérieur, un premier anneau (23), en forme d'arc de cercle, est prévu au niveau de l'extrémité transversale de la première bavette (21), adjacente à la lèvre arrière (12), et/ou un deuxième anneau (24) en forme d'arc de cercle est prévu au niveau de l'extrémité opposée de ladite première bavette, dans lequel ladite deuxième bavette (21) comprend un premier anneau (28) en forme d'arc de cercle qui existe au niveau de l'extrémité de la deuxième bavette (21) adjacente à la lèvre arrière (12), et/ou un deuxième anneau (29) en forme d'arc de cercle qui existe au niveau de l'extrémité opposée de ladite deuxième bavette.
 
2. Lave-linge (1) à chargement frontal selon la revendication 1, dans lequel est prévu un pont (25) qui relie le bord de la première bavette (21) et le bord de la deuxième bavette (26) orientées les uns vers les autres.
 
3. Lave-linge (1) à chargement frontal selon la revendication 2, dans lequel la première et la deuxième bavette (21, 26) sont symétriques en relation avec un axe qui divise le pont (12) au milieu en deux parties.
 
4. Lave-linge (1) à chargement frontal selon l'une quelconque des revendications précédentes, dans lequel le bord curviligne (22) est en forme d'arc de cercle.
 
5. Lave-linge (1) à chargement frontal selon la revendication 2, dans lequel la longueur radiale du pont (25) est plus petite que la longueur radiale de la première et/ou de la deuxième bavette (21,26).
 
6. Lave-linge (1) à chargement frontal selon l'une quelconque des revendications précédentes, dans lequel le diamètre de l'arc de cercle du bord curviligne (22) et/ou du deuxième bord curviligne (27) est plus grand que le diamètre du premier et/ou du deuxième anneau (24, 29).
 
7. Lave-linge (1) à chargement frontal selon l'une quelconque des revendications précédentes, dans lequel la longueur dudit bord curviligne (22) et/ou dudit deuxième bord curviligne (27) est sensiblement égale à la longueur de la première et/ou de la deuxième bavette correspondante (21).
 
8. Lave-linge (1) à chargement frontal selon l'une quelconque des revendications précédentes, dans lequel ledit bord curviligne (22) a une section en forme de C.
 




Drawing











Cited references

REFERENCES CITED IN THE DESCRIPTION



This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description