EP0314590B1 - Schiebetür für Kamin - Google Patents

Schiebetür für Kamin Download PDF

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Publication number
EP0314590B1
EP0314590B1 EP88440089A EP88440089A EP0314590B1 EP 0314590 B1 EP0314590 B1 EP 0314590B1 EP 88440089 A EP88440089 A EP 88440089A EP 88440089 A EP88440089 A EP 88440089A EP 0314590 B1 EP0314590 B1 EP 0314590B1
Authority
EP
European Patent Office
Prior art keywords
door
door according
spindle
frame
pivoting
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 - Lifetime
Application number
EP88440089A
Other languages
English (en)
French (fr)
Other versions
EP0314590A1 (de
Inventor
Robert Richard
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.)
Fondis SA
Original Assignee
Fondis SA
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
Priority claimed from FR8714885A external-priority patent/FR2622280B1/fr
Application filed by Fondis SA filed Critical Fondis SA
Publication of EP0314590A1 publication Critical patent/EP0314590A1/de
Application granted granted Critical
Publication of EP0314590B1 publication Critical patent/EP0314590B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/191—Component parts; Accessories
    • F24B1/192—Doors; Screens; Fuel guards

Definitions

  • the present invention relates to an improved guillotine door for closed hearths of fireplaces, in particular those with glass doors.
  • blocking the door in the closed, open or partially open position causes mechanical intervention that is not easy due to the difficulty of accessing the mechanism located in the upper part of the hood.
  • the object of the present invention is to remedy these various drawbacks.
  • guillotine door for closed hearths of fireplaces, characterized in that the guide fingers along the slides in vertical movements are connected, for the lower fingers to the mechanical assistance devices for the maneuver then that the upper fingers are made able to leave the slide by a transverse release device in order to allow, with the virtual axis connecting the lower fingers together, pivoting around a lower axis to effect the erasure of the door by tilting to the lower horizontal position of full opening.
  • the general inventive idea consists, for a door of the guillotine type used on a closed hearth of chimney, to move downwards the point of attachment of the device of mechanical assistance with displacement and to use a lower axis to carry out the bringing pivoting the door in a low full opening position in which it is tilted flat.
  • the mechanical assistance device for door movements is offset downwards and connected by a flexible connection to the lower part of the door frame, the upper guide elements being able to escape laterally from the slides to allow the pivoting of the door down to the retracted position open flat.
  • the lower guide elements are used along the slides as the ends of the lower pivot axis of the door and as the point of attachment of the end of the connection to the device. mechanical assistance with movement.
  • a metal box 1 surrounds a hearth 2 with a chimney 3 with a hood 4.
  • This box comprises in the front part a door 5 with a frame 6 holding a heat-resistant window 7.
  • the door 5 is of the guillotine type, that is to say with vertical displacement between a low closed position and a high release position, position in which the access opening inside the box 1 is entirely free .
  • the frame 6 of the door slides vertically along two parallel vertical slides 8 and 9, continuing upwards, joined together in the upper part by a cross member 10.
  • Each of the slides is formed, for example, of two flat irons 11 and 12 held opposite, parallel to each other, by suitable mechanical elements leaving free over their entire length the constant gap formed between them.
  • the displacement along these vertical guides is carried out by any suitable means.
  • the frame is guided and carried on the slides 8 and 9 by means of high and low transverse elements, present at the ends of each upright, attached for example to the edges of the adjacent crosspieces, produced according to a method of execution in the form of lower fingers 13 and upper fingers 14, arranged in the vicinity of each corner of the frame.
  • a lower pivot axis 15 is provided allowing the door to tilt forwards and come to rest flat in position total opening.
  • the corresponding lower fingers 13 are used as the ends of the lower pivot axis 15.
  • the upper fingers 14 must be able to cross the vertical slides laterally through a release device 16.
  • these or at least the front element, flat iron or the like have a passage for example in the form of a slot 17.
  • This slot can be closed by a pivoting tab such as 18, as shown in FIG. 6, or any other mechanical means, bolt or the like, making it possible to occasionally obtain a release of lateral clearance from the corresponding upper finger.
  • the frame 6 is formed of uprights such as 19 and of an upper cross 20 and lower 21.
  • FIG. 4 A first possible embodiment of this device is shown in Figure 4 in the lower part. It is a tilting mechanism in the form of a tab 23, shaped as a square, movable in inclination, composed of a tilting blade 24 and a holding plate 25 perpendicular to this blade.
  • the retaining plate 25 enters a slot 26 which the front element of the slide presents at the right of this mechanism for constituting a transverse blocking or support wall for the axis or lower adjacent finger 13.
  • a similar mechanism equips the homologous upright.
  • said finger bears on the transverse plane formed by the plate 25 when the latter is engaged in the slide and carries the finger 13.
  • the blade 24 is then located against the slide and the door in the position of closing. In the pivoting opening configuration, said finger 13 descends below the plate 25 which holds it captive downwards as will be seen below.
  • the blade 24 an elastic return in the folded position against the slide, making it for example in a spring effect material (leaf spring steel or other) or in the form of a pivoting tab around a lower axis with elastic return, for example torsion in the folded position.
  • FIG. 5 Another embodiment of the holding device 22 is shown in Figure 5.
  • the pivoting tab is replaced by a domed and elastic metal blade 27 disposed longitudinally relative to the front flat iron 12 of the slide, fixed on that here at each of its ends 28 and 29, for example by riveting.
  • the blade 27 has in its middle part a transverse element in the form of a locking finger 30 engaging through the adjacent flat iron 12 by a passage.
  • the locking finger 30 constitutes a support for the finger 13 in the closed position and a retention of this finger in the low position during pivoting.
  • the general operation remains identical as will be seen below.
  • the guillotine door comprises a device for assisting movement 31 in the form of a counterweight 32 connected to the door by two flexible connections such as 33 by via a kinematic angle gear in the form of pulleys or toothed wheels 34.
  • This device is double, connected by an axis 35 common to the two pulleys or toothed wheels 34.
  • this device is connected by flexible connections 33 to the ends of the lower fingers 13, which makes it possible to move the movement gear in its lowest position, that is to say slightly above the upper limit of the opening of the hearth and leaving free the upper fingers 14 which can thus occasionally exit laterally from the slides.
  • FIG. 7 Another device or mechanism 36 provided for the same blocking effects of the lower fingers 13 is shown in FIG. 7. It acts by action on the counterweight 32.
  • This device 36 is preferably to be used in conjunction with the mechanical lock devices intended to close off the slots 17 of the upper fingers as indicated above.
  • any stop or other device neutralizing the action of the counterweight may be suitable. It suffices that the neutralization is effective from the level of use materialized by the position occupied by the door when the fireplace is closed.
  • One of the additional advantages of the invention resides in the fact that it becomes possible to hide the slides and the movement assistance mechanism by rectilinear aesthetic covers, removable, retractable or fixed, vertical such as 37 and a cover. horizontal upper such as 38.
  • the vertical covers must allow the release of the upper fingers 14. To do this, they are made retractable, for example pivoting around hinges.
  • the opening by vertical movement of the door does not differ significantly from a conventional door of the guillotine type. It suffices to release the locking or retaining devices for the lower fingers 13.
  • the slots 17 are simple slots and the lower axes are maintained by a pivoting tab.
  • the door rests by the lower fingers 13 on the support plate 25 forming a support.
  • the position of the slots 17 on the slides is low enough that the upper fingers 14 are, in this position of the door, above the slots 17. The door is thus securely immobilized in the closed position.
  • the counterweight assistance device makes maneuvering easier.
  • the location of the slots 17 relative to the upper stop allows the lower fingers 13 to be found just below the level of the slots 17 when the door is fully raised.
  • the pivoting opening is carried out as follows.
  • a suitable control on the holding devices 22 allows the lower fingers to descend to the low position to perform the pivoting. During this maneuver, the plate 25 fades out of the slide to free down the path along the slides.
  • the door then descends slightly to a low point in which the lower fingers 13 are in bottom stop at the lower end of the slides. This position corresponds exactly to the presentation of the upper fingers 14 in front of the slots 17.
  • the door cannot be raised by the effect of the counterweight and the pivoting takes place without constraint until the lower position is retracted flat.
  • this replacement is made for the benefit of two assemblies arranged on either side of the door frame, each formed by a rail, along which move a lower shoe and an upper shoe each mounted at the end. of the frame, each lower shoe carrying one of the ends of the lower pivot axis which passes through it, the assembly being completed by a lower support-locking mechanism of at least one of the ends of the pivot axis in position low.
  • this variant is remarkable in that the frame is pivotally mounted at its lower pivot axis and an upper support axis by respectively lower and upper pads sliding two by two each on sliding rails present by on either side of the frame, each lower or upper pad carrying one of the ends of the lower or upper axes, said ends of the lower axis cooperating with a support-blocking mechanism and being each connected to the device for assisting the movements of the door.
  • the guide and blocking mechanism consists of two homologous guide assemblies such as 40 arranged laterally on either side of the door frame along which it moves vertically.
  • These guide assemblies 40 essentially each each comprise a sliding rail 41, for example of rectangular section. On this rail, slide two shoes, lower 42 and upper 43, mounted at the end of lower axes 44 and upper 45, axes each secured to the corresponding horizontal outer edge, lower and upper, of the frame.
  • Each shoe has a front front 46 shaped as a notch such as 47 capable of coming to engage fully on the rail to slide there with good stability.
  • the lower shoes 42 each carry one of the ends of the lower pivot axis 44 for example by fitting into the body of the shoe to a stop washer 48 that each end of the lower pivot axis 44 has at the right of the lower corner of the frame, against the face opposite that of the notch 47.
  • the notch 47 delimited by two wings 49 and 50 is offset with respect to a median plane so as to provide on one side a larger wing, for example 50.
  • the body of each shoe is crossed by one of the ends of the adjacent axis which emerges from the wing 50 in order to serve as a connecting finger 51 for the lower axis, the end of which is secured to the connection kinematics of the mechanical assistance device for operating the door.
  • This device consists, for example, of a circulation 52 of a chain 53 with counterweight 54 between two lower 55 and upper 56 pulleys.
  • the upper pads 43 are retractable mounted on the upper axis 45 by means of a pusher 57 for example a spring device 58 allowing the maintenance or the extraction of the notch 47 of the rail therefore the maintenance or the release of the door pivoting.
  • At least one of the guide assemblies 40 according to the present improvement comprises, in the lower part, a support-blocking mechanism 59 for the connecting finger 51.
  • This locking mechanism will advantageously be produced in the form of a pivoting vertical key 60 having a handle 61 and a plate 62 connected by a rod 63.
  • the handle and the plate are angularly offset by 90 °.
  • the handle 61 has a stop edge 64 for the connecting finger 51 on the underside.
  • the plate 62 has an upper stop song 65 against which the connecting finger 51 comes to bear.
  • the pivoting of the key will be facilitated by an assistance spring 66 which has the sole purpose of forcing the key 60 into one or other of its stable operating positions.
  • the rail 41 has in the upper part, on either side of the position of the upper shoe 43, a locking device 67 in the form for example of a locking bracket 68 with a front wing 69 forming transverse stop for the adjacent upper shoe.
  • This locking device forces the user to descend the door after action on the key 60 as will be explained below.
  • the operating position of the door in its closed configuration corresponds to position A of the key in which the end 51 of the lower axis 44 rests on the upper edge of the plate 62. In this position, the pivoting movement of the door to the front is locked by the front wing of the bracket 68. The opening of the door results in the successive passage in positions B and C.
  • the first movement consists in turning the key so as to make it possible to lower the door to its lowest vertical position (position B). In this position, the release of the upper runners is complete, thus allowing the door to tilt-pivot forwards.
  • the front wing 69 of this bracket is of sufficient width to prevent movement of the skate and from the door forward even after removing the upper shoe from the adjacent rail.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wing Frames And Configurations (AREA)

Claims (20)

1. Schiebetür für geschlossene Feuerstellen von Kaminen, die entlang von Gleitschienen (8) und (9) mit Hilfe einer mechanischen Unterstützung des Vorgangs verstellt wird, bestehend aus einem Rahmen (6), wobei jeder Ständer des Rahmens mindestens einen unteren querliegenden Teil und mindestens einen oberen querliegenden Teil für die Führung der Lauf- oder der Gleitbewegung entlang von senkrechten Führungsteilen besitzt, dadurch gekennzeichnet, daß die Tür sich durch Kippen um einen waagrechten, unteren Schwenkbolzen (15) öffnet, wobei die Enden des Schwenkbolzens sich auf die senkrechten Führungsteile abstützen, und die besagten Enden des Schwenkbolzens während der Schwenkbewegung in unterer tiefer Lage durch eine Haltevorrichtung (22) verriegelt sind, wobei jeder Führungsteil an der Höhe jedes oberen querliegenden Teils eine Einrichtung für eine seitliche Entriegelung aufweist, damit die Tür geneigt und dann um den unteren Bolzen (15) geschwenkt werden kann, und daß die Verbindungen der Einrichtung für die mechanische Unterstützung der Bewegungen des Rahmens an dem unteren Teil des Rahmens angebracht sind.
2. Tür gemäß Anspruch 1, dadurch gekennzeichnet, daß die querliegenden Führungsteile untere (13) und obere (14) Finger sind, die mit dem Rahmen der Tür fest verbunden sind.
3. Tür gemäß Anspruch 2, dadurch gekennzeichnet, daß die Enden des unteren Schwenkbolzens (15) die unteren Finger (13) sind.
4. Tür gemäß den Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß das Ende jeder Verbindung an der Einrichhtung für die mechanische Unterstützung der Verstellung an jedem unteren Finger (13) befestigt ist.
5. Tür gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtungen für eine seitliche Entriegelung (16) Schlitze (17) sind.
6. Tür gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung für eine seitliche Entriegelung (16) Schlitze (17) sind, die mit einem mechanischen Riegel versehen sind.
7. Tür gemäß irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Einrichtung für das Halten in unterer senkrechter Stellung des Bolzens (15) eine Lasche ist, die geneigt werden kann, und aus einer schrägstellbaren Klinge (23) mit elastischer Rückstellung zu der Gleitschiene hin besteht, die eine Halteplatte (25), die senkrecht zu dieser Klinge steht, trägt, wobei die Halteplatte (25) durch einen Schlitz (26) die nebenstehende Gleitschiene durchquert, um für den entsprechenden unteren Finger (13) eine querliegende Anschlag- oder Auflagewandung zu bilden.
8. Tür gemäß irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Haltevorrichtung (22) für den Bolzen (15) in der unteren senkrechten Stellung eine Stange oder ein Stift quer zu jeder Gleitschiene ist.
9. Tür gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Einrichtung für die Unterstützung der senkrechten Verstellung der Tür auf jeder Seite eine Kette und ein Zahnrad enthält, wobei das Ende jeder Kette an dem entsprechenden unteren Finger (13) befestigt ist.
10. Tür gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Ständer (19) des Rahmens (6) und das obere Querstück (20) durch geradlinige senkrechte (37) und waagrechte (38), feststehende oder abnehmbare Hauben geschützt und abgedeckt sind.
11. Tür gemäß Anspruch 1, dadurch gekennzeichnet, daß die Führungsteile für die Verstellung des Rahmens der Tür Schienen, als Gleitschienen gebildet, sind, auf denen über untere (42) und obere (43) Gleitschuhe ein unterer Schwenkbolzen (44) und ein oberer Tragbolzen (45) gleiten, wobei das Ende der Gleitschuhe geformt ist, um auf die Schiene als Gleitschiene gleitend eingeführt zu werden, wobei jeder Gleitschuh eines der Enden oder untere oder obere Bolzen trägt, und daß von jedem unteren Gleitschuh ein Ende des Bolzens als Verbindungsfinger (51) herausragt, der mit der Einrichtung für die mechanische Unterstützung der Gleitbewegungen des Rahmens verbunden ist.
12. Tür gemäß Anspruch 11, dadurch gekennzeichnet, daß die unteren Gleitschuhe die Enden des unteren Bolzens tragen, indem sie in ihren Körper als Lagerung eingesteckt werden, wobei die besagten Bolzen im Bereich der Einführung in dem Gleitschuh eine Scheibe als Anschlag (48) aufweisen.
13. Tür gemäß den Ansprüchen 11 oder 12, dadurch gekennzeichnet, daß die oberen Gleitschuhe einziehbar sind.
14. Tür gemäß Anspruch 13, dadurch gekennzeichnet, daß die oberen Gleitschuhe entlang des Endes des oberen Bolzens (45) zurückgezogen werden können.
15. Tür gemäß Anspruch 11, dadurch gekennzeichnet, daß das Ende jedes Gleitschuhs als Einkerbung (47) mit asymmetrischen (49) und breiten (50) Schenkeln gebildet ist, die mit der Öffnung, aus der das Ende des unteren Bolzens herausragt, fluchtet.
16. Tür gemäß irgendeinem der Ansprüche 11 bis 15, dadurch gekennzeichnet, daß der Verbindungsfinger (51) in der unteren Stellung durch eine mechanische Einrichtung als Auflage/Riegel (59) gehalten ist.
17. Tür gemäß Anspruch 16, dadurch gekennzeichnet, daß die mechanische Einrichtung als Auflage/Riegel (59) einen drehbaren Schlüssel (60) mit einer Spindel (63) besitzt, die einen Griff (61) und eine Platte (62), die zueinander um 90° versetzt sind, verbindet.
18. Tür gemäß Anspruch 17, dadurch gekennzeichnet, daß der Griff (61) auf der Unterseite eine Schmalseite (64) als Anschlag für den Verbindungsfinger (51) aufweist und daß die Platte eine obere Schmalseite als Anschlag (65) für den besagten Verbindungsfinger (51) aufweist.
19. Tür gemäß irgendeinem der Ansprüche 16 bis 18, dadurch gekennzeichnet, daß der Schlüssel durch eine Hilfsfeder (66) in eine Arbeitsstellung hinein gezwängt wird.
20. Tür gemäß irgendeinem der Ansprüche 11 bis 19, dadurch gekennzeichnet, daß die Schiene im oberen Bereich bei der Höhe der Stellung des oberen Gleitschuhs bei geschlossener Tür eine Verriegelungseinrichtung (67) besitzt, die einen Anschlag für die Bewegung der Tür nach vorne bildet, solange die Tür nicht ausreichend gesenkt worden ist.
EP88440089A 1987-10-23 1988-10-21 Schiebetür für Kamin Expired - Lifetime EP0314590B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8714885A FR2622280B1 (fr) 1987-10-23 1987-10-23 Porte guillotine perfectionnee pour foyer ferme de cheminee
FR8714885 1987-10-23
FR8804146 1988-03-25
FR888804146A FR2629181B2 (fr) 1987-10-23 1988-03-25 Porte guillotine perfectionnee pour foyer ferme de cheminee

Publications (2)

Publication Number Publication Date
EP0314590A1 EP0314590A1 (de) 1989-05-03
EP0314590B1 true EP0314590B1 (de) 1991-08-21

Family

ID=26226294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88440089A Expired - Lifetime EP0314590B1 (de) 1987-10-23 1988-10-21 Schiebetür für Kamin

Country Status (6)

Country Link
US (1) US5052371A (de)
EP (1) EP0314590B1 (de)
CA (1) CA1290208C (de)
DE (1) DE3864377D1 (de)
ES (1) ES2024688B3 (de)
FR (1) FR2629181B2 (de)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
DE4002799C2 (de) * 1990-01-31 2001-02-22 Roesler Kamine Openfire Vertikal geführte Hebeschiebetür für einen offenen Kamin
US5992101A (en) * 1996-12-18 1999-11-30 Aki Dryer Manufacturers, Inc. Vertical lift door for gypsum board dryer or veneer dryer
US6748943B1 (en) 2003-05-01 2004-06-15 John P. Krimmer Fireplace cover
US20070235018A1 (en) * 2006-03-06 2007-10-11 Hills Douglas E Fireplace front panel interior access and removal system and method
FR2900463B1 (fr) * 2006-04-27 2008-06-13 Fondis Sa Ensemble de porte entierement deposable pour foyer ferme de cheminee
US7826727B2 (en) 2006-05-05 2010-11-02 Twin-Star International, Inc. Electric fireplace
US7654259B1 (en) 2007-08-07 2010-02-02 Lawrence Royce Allen Keystone-shaped fireplace door apparatus
USD616977S1 (en) 2008-12-03 2010-06-01 Twin-Star International Inc. Fireplace insert
USD668748S1 (en) 2009-07-07 2012-10-09 Twin-Star International, Inc. Electric fireplace
FR2952998A1 (fr) * 2009-11-25 2011-05-27 Flam N Co Foyer ferme de cheminee perfectionne
BE1024329B1 (nl) * 2016-06-24 2018-02-01 V.F.M. Cvba Liftsysteem
ES2676662B1 (es) * 2017-01-20 2019-03-20 Chimeneas Tecnicalor S L Dispositivo de abatimiento y extraccion de puertas de guillotina en chimeneas
DE202017001319U1 (de) * 2017-03-13 2017-05-22 Spartherm Feuerungstechnik Gmbh Feuerstätte
USD828537S1 (en) * 2017-06-28 2018-09-11 Zhongshan Chances Electrical Appliances Co., Ltd. Fireplace

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Publication number Priority date Publication date Assignee Title
US1727228A (en) * 1928-02-29 1929-09-03 Victor H Patrick Air heating and circulating fireplace
US2416511A (en) * 1943-10-13 1947-02-25 Blanck Richard Window structure
US2921350A (en) * 1954-02-15 1960-01-19 Fenestra Inc Storm window
US4262449A (en) * 1979-09-14 1981-04-21 Rusco Industries, Inc. Aluminum hung window and takeout mechanism therefor
FR2512932A1 (fr) * 1981-09-14 1983-03-18 Philippe Cheminees Perfectionnements aux cheminees a foyer ouvert
FR2542849B1 (fr) * 1983-03-18 1985-12-13 Telec 2000 Installation de chauffage domestique a foyer ferme utilisant un combustible solide du type bois ou ses derives
FR2546611B1 (fr) * 1983-05-26 1988-07-29 Brisach Cheminees Rene Cheminee equipee d'un foyer ouvert et fermable par une porte escamotable verticalement et relevable a l'horizontale
FR2550611B1 (fr) * 1983-08-09 1986-03-28 Moughamian Artine Foyer pour cheminee mixte destine a fonctionner ouvert et ferme
FR2578959B3 (fr) * 1985-03-12 1987-06-26 Selva Guy Perfectionnements aux cheminees a foyer ouvert equipees d'une paroi vitree eclipsable
FR2587789A1 (fr) * 1985-09-26 1987-03-27 Brisach Cheminees Rene Porte pour foyer escamotable a la verticale et a ouverture laterale, montee sur glissieres avec cliquet automatique de retenue

Also Published As

Publication number Publication date
ES2024688B3 (es) 1992-03-01
FR2629181A2 (fr) 1989-09-29
DE3864377D1 (de) 1991-09-26
CA1290208C (fr) 1991-10-08
US5052371A (en) 1991-10-01
EP0314590A1 (de) 1989-05-03
FR2629181B2 (fr) 1990-11-23

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