EP1111175B1 - Serrure de portes d'appareils - Google Patents

Serrure de portes d'appareils Download PDF

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Publication number
EP1111175B1
EP1111175B1 EP99125878A EP99125878A EP1111175B1 EP 1111175 B1 EP1111175 B1 EP 1111175B1 EP 99125878 A EP99125878 A EP 99125878A EP 99125878 A EP99125878 A EP 99125878A EP 1111175 B1 EP1111175 B1 EP 1111175B1
Authority
EP
European Patent Office
Prior art keywords
door
operating handle
lock according
lock
handle
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
EP99125878A
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German (de)
English (en)
Other versions
EP1111175A1 (fr
Inventor
Ernst-Christian Braetsch
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.)
Rahrbach GmbH
Original Assignee
Rahrbach GmbH
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8239729&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1111175(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rahrbach GmbH filed Critical Rahrbach GmbH
Priority to DE59908761T priority Critical patent/DE59908761D1/de
Priority to AT99125878T priority patent/ATE261047T1/de
Priority to EP99125878A priority patent/EP1111175B1/fr
Publication of EP1111175A1 publication Critical patent/EP1111175A1/fr
Application granted granted Critical
Publication of EP1111175B1 publication Critical patent/EP1111175B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/06—Other devices specially designed for securing wings, e.g. with suction cups in which the securing part if formed or carried by a spring and moves only by distortion of the spring, e.g. snaps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples
    • E05B15/021—Strikers having multiple positions for the bolt

Definitions

  • the invention relates to a closure for doors of devices in which goods or Foods may be exposed to increased temperature and / or pressure, consisting of a locking pin that can be attached to the device housing and that is transverse to its longitudinal axis has at least one latching recess, and a locking element which in spring force in can immerse the mentioned recess, and one connected to the locking element Operating handle.
  • DE 42 08 216 A1 discloses a door lock, preferably for hot appliance doors has the following structure: A locking pin is inserted into the door, which is immovably rotatably mounted and has a handle on the outside.
  • the Locking pin is coupled to a return spring and has a locking groove that in a certain circumferential section is arranged.
  • One wall of the locking groove is the Facing the door surface runs parallel to the door surface.
  • a lock case is provided on the device housing, which has an opening for the introduction of the Has locking pin.
  • the lock case is a cross to the trajectory of the Locking pin slidable locking member mounted, which is under spring force and against the locking pin is pressed.
  • the locking member is designed as a locking slide, which in two different grooves Can engage locking pin.
  • the bolt slide stops in the inner groove adjacent to the door leaf.
  • the return spring provides the locking pin to the rotational position in which the axial plane of the first groove with the movement path of the bolt slide is aligned.
  • the locking pin is rotated about its longitudinal axis until the Latch slide is pushed out of the first groove, i.e. the slide on the base the second groove can slide.
  • the spring force of the door seal pushes the door leaf over a few mm or cm until the movement through the stop surface of the second groove is limited.
  • the door leaf is held in this position until the handle again, but now by a larger angle, is rotated.
  • the bolt slide will then pushed so far until its edge slide over the cylindrical part of the locking pin can, so that the door can be opened fully.
  • a return spring is provided between the door leaf and locking pin, which tries to to push the deflected handle into the middle position. Another return spring moves the bolt slide in one or the other groove of the locking pin. But this feather must - at least in one embodiment - be so strong that in the intermediate position Latch slide on the bottom of the associated groove holds, so that the handle is not automatically goes into the middle position. Then the lock would be without contact open the handle completely.
  • the door lock described is relatively expensive because it is in addition to that in the door stored locking pin with differently milled grooves and a return spring an expensive lock case needed, in which the bolt slide easily movable against the Force of the spring mentioned must be slidably mounted.
  • the closure is also prone to failure, because the locking pin and the bolt slide worn out by friction. If the hinges or other parts give way, there is Risk of jamming.
  • a pin with a tangential groove is attached to the wall of the container.
  • Closure element is a leg spring engaging in the groove, which in the plane of the Flap lies and be pressed apart by a handle and an expansion element can. When closing the leg spring is through the tapered end of the bolt pressed apart. This process is associated with heavy friction and wear, so this principle doesn't work for commercial devices with over a hundred operations per day seems appropriate.
  • the invention has for its object a permanent reduction in Avoid locking security and a particularly reliable and inexpensive one or to create two-stage door lock, the construction of larger tolerances on the door and housing.
  • the locking element consists of a U-shaped
  • a spring clip the level of which is perpendicular to the door when the lock is installed in the door, and which is on the door leaf storable shaft of the operating handle is attached that its crossbar resiliently perpendicular is deflectable to the axis of rotation, and that the actuating handle by a leg spring in the Middle position is held, from which it can be deflected so far that the crossbar of the resilient Bracket is lifted onto an axially parallel surface of the locking pin, causing the Door can be opened.
  • the locking pin is designed so that result in two closed positions.
  • the door can be closed with one movement or be slammed, while the opening inevitably takes place in two stages.
  • Movement of the operating handle clockwise results in a pre-opening in which hot Can pull vapors out of the housing.
  • the handle immediately moves into the Middle position back. If you now deflect it counterclockwise, it becomes spring latch fully released and the door can be opened fully.
  • Fig. 1 denotes an operating handle, 2 a handle plate, 2a the cylindrical neck of this plate, 3 a fastening screw and 4 a very short shaft.
  • the handle 1 is fastened to the shaft 4 by means of the screw 3.
  • a 0-ring 5 reduces the friction between the shaft 4 and the handle plate 2.
  • a U-shaped spring clip 7 is fastened to the shaft 4 with the aid of a screw 6, the cross bar 7a of which carries a roller 8.
  • a leg spring 9 is also mounted, which returns the handle 1 to the central position after deflection.
  • the handle plate 2 has two mounting holes 2b, 2c, by means of which the handle plate 2 can be attached to the door of the device.
  • a so-called hygiene sleeve 10 is arranged in front of the handle shield 2 and is intended to protect the mechanism from dust and swaths.
  • a locking pin is designated, which can be made of hexagon material, for example.
  • the front area 11a is designed as a cone, the rear 11b as a threaded rod.
  • a locking recess 11c which runs transversely to the main axis, is milled out, the locking surface 11c1 of which is perpendicular to the axis indicated by dash-dotted lines.
  • the locking pin 11 is screwed to the frame of the device housing. If you have the Presses the door, the roller 8 approaches the cone 11a. He directs the spring clip 7 down until the roller 8 snaps into the recess 11c. The door is locked whereby a circumferential seal is compressed and exerts a counterforce. If you now turn the operating handle by about 45 °, the roller 8 is under Deformation of the resilient bracket 7 pressed down until the roller 8 over the Blocking surface 11c 1 slides away
  • the leg spring 9 is on a mandrel 12 stored.
  • the spring 9 is deformed.
  • the crosspiece 7a the role 8 pushed.
  • 3 and 4 represent octagonal grips 13 which are fastened via holes 13a, 13b become.
  • the leg spring 9 rests on a mandrel 12 which is part of the shaft 4.
  • 4a is denotes an axially parallel surface, the grooves 4b, 4c for receiving the spring clip 7 having.
  • the two legs of the spring 9 lie on a V-shaped recess 4d. Your Ends rest on stop faces 13c, 13d of the handle plate 13.
  • Fig. 5 shows the locking pin 11 for a one-step locking.
  • the contour lines are round at the bottom, parallel at the sides and prismatic at the top.
  • Line 11c indicates the recess.
  • the cross section is a hexagon.
  • 5c shows the side view with the cone 11a, the threaded rod 11b and the locking recess 11c. In order to convert a one-stage closure into a two-stage, it is sufficient to replace the locking pin 11 by another with two locking recesses.
  • Fig. 6 shows a side view, top view and front view of a locking pin 14 for a two-stage lock.
  • a conical surface is designated 14a, the threaded rod 14b.
  • a first latching recess 14c applies to the tight door lock, a second 14d applies to the pre-opening step.
  • the actual blocking surfaces 14c1 and 14d1 are perpendicular to the AB axis.
  • the right boundary of the locking recess 14d is an inclined surface 14d2.
  • the device can ventilate, meaning that steam, steam or smoke can escape.
  • the operating handle To open the door completely, the operating handle must now be moved counterclockwise.
  • 6b shows the locking pin 14 from above.
  • a further additional cutout 14f can be seen, which enables the roller 8 to overcome the blocking surface 14d1 by rotating it counterclockwise.
  • Fig. 6c shows the locking pin 14 in the rear view.
  • the whole system is absolutely foolproof. You can push the door shut or throw it shut. An additional spring can be provided for opening the door, so that the opening movement takes place automatically after complete unlocking. It is also not necessary to really touch the operating handle 1. It can also be moved with the elbow if the user does not have his hands free.
  • Fig. 7a shows the spring clip 7 with the cross bar 7a and the roller 8 from above. It can be seen that the basically U-shaped spring wire bow is folded at different intervals at the right end. The bent ends 7b and 7c lie in the recesses 4b and 4c during assembly (in FIGS. 3 and 4). In this position they are secured by an indicated disc 15 and a screw 16. 7b shows parts 7 and 8 from the side. The shorter spring leg 7d is pretensioned during assembly. The relaxed position 8 (thinner line) is marked 7d '.
  • Fig. 7c shows the spring clip 7 and the roller 8 seen from behind in the pretensioned position.
  • the described novel system for one- or two-stage locking of a door is extremely simple, can be quickly converted from one type to the other and, above all, is insensitive to faults. Since the locking element consists of a simple spring clip, there are no sliding surfaces that could stick due to traces of grease or the like. Tolerances between the door and the housing, which can occur due to wear on the hinges, temperature differences or incrustations, have only little influence on the function. If the door seals age and their springback properties deteriorate, the locking pin can be easily adjusted using its threaded rod.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Special Wing (AREA)

Claims (9)

  1. Fermeture pour portes d'appareils, dans lesquels des marchandises ou des denrées alimentaires peuvent être exposées à une température et/ou une pression élevée, composée d'un tenon de fermeture (11, 14) pouvant être fixé au boítier d'appareil et présentant transversalement à son axe longitudinal au moins un renfoncement d'arrêt (11c ; 14c , 14d), d'un élément de verrou qui peut s'enfoncer dans ledit renfoncement d'arrêt sous un effet de ressort, et d'une poignée de commande (1) reliée à l'élément de verrou, caractérisée en ce que l'élément de verrou se compose d'une bride de ressort (7) en forme d'U dont le plan est perpendiculaire à la porte lorsque la fermeture est installée sur la porte et qui est fixée sur l'arbre (4) logé dans la plaque de poignée (2) de la poignée de commande (1) de telle sorte que sa barrette transversale (7a) peut être déviée de façon élastique perpendiculairement à l'axe de rotation, et en ce que la poignée de commande (1) est maintenue par un ressort à branches (9) dans la position centrale à partir de laquelle elle peut être déviée jusqu'à tel point que la barrette transversale (7a) de la bride élastique (7) est soulevée sur une surface parallèle à l'axe du tenon de fermeture, ce qui permet d'ouvrir la porte.
  2. Fermeture selon la revendication 1, caractérisée en ce que le tenon de fermeture (11) se compose d'un matériau hexagonal qui est affilé à l'avant sous forme conique (11a), réalisé à l'arrière comme une tige filetée (11b) et présente dans la zone centrale un renfoncement d'arrêt (11c) s'étendant transversalement à l'axe longitudinal, dont la surface de verrouillage (11c1) proprement dite est perpendiculaire à l'axe longitudinal.
  3. Fermeture selon la revendication 2, caractérisée en ce que la surface parallèle à l'axe du renfoncement d'arrêt (11c) s'étend de façon symétrique à un coin du profilé hexagonal de sorte que la barrette transversale (7a), de la bride de ressort (7), débloquée d'environ 45° après rotation de la poignée de commande (1), peut coulisser sur l'une des surfaces voisines du matériau hexagonal.
  4. Fermeture selon la revendication 1, caractérisée en ce qu'un tenon de fermeture (14) sert à réaliser une fermeture de porte avec arrêt intermédiaire, le tenon présentant deux renfoncements d'arrêt (14c, 14d) placés l'un après l'autre, qui ont tous les deux la même profondeur et s'étendent en position de repos de la poignée de commande (1) en parallèle à la barrette transversale (7a) de la bride de ressort (7), le premier renfoncement d'arrêt (14c) présentant des fraisures supplémentaires (14e, 14h) de telle sorte que le blocage est maintenu en cas de rotation à gauche de la poignée de commande, qu'en cas de rotation à droite, la barrette transversale (7a) passe du premier au deuxième renfoncement d'arrêt, et qu'en cas de rotation à gauche consécutive, le déblocage total a lieu en raison d'une fraisure (14f) supplémentaire.
  5. Fermeture selon la revendication 4, caractérisée en ce que la première fraisure supplémentaire (14h) crée une surface lisse équidistante, mais conserve la surface de verrouillage (14c1), tandis que la deuxième fraisure supplémentaire (14e) crée également une surface lisse équidistante avec omission d'une partie de la première surface de verrouillage (14c1).
  6. Fermeture selon la revendication 5, caractérisée en ce que le deuxième renfoncement d'arrêt (14d) présente une surface de verrouillage asymétrique (14d1) de telle sorte que le déblocage a lieu uniquement en cas de rotation à gauche.
  7. Fermeture selon la revendication 1, caractérisée en ce que la poignée de commande (1) avec un arbre court (4) est logée dans le col (2a) d'une plaque de poignée (2) et en ce que cet arbre (4) enlève du matériau le long d'une sécante pour créer une surface de fixation pour la bride de ressort en forme d'U (7).
  8. Fermeture selon la revendication 7, caractérisée en ce que l'arbre (4) présente un évidement (4d) en forme de secteur sur la face opposée à la bride (7), en ce qu'une broche (12) est rapportée dans cet évidement, et en ce qu'un ressort à branches (9) est logé sur cette broche qui se déforme en cas de mouvement de la poignée de commande (1) et ramène la poignée à la position centrale.
  9. Fermeture selon la revendication 1, caractérisée en ce que la barrette transversale (7a) de la bride de ressort (7) porte un rouleau (8) qui évite la friction de glissement.
EP99125878A 1999-12-24 1999-12-24 Serrure de portes d'appareils Expired - Lifetime EP1111175B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59908761T DE59908761D1 (de) 1999-12-24 1999-12-24 Verschluss für Gerätetüren
AT99125878T ATE261047T1 (de) 1999-12-24 1999-12-24 Verschluss für gerätetüren
EP99125878A EP1111175B1 (fr) 1999-12-24 1999-12-24 Serrure de portes d'appareils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99125878A EP1111175B1 (fr) 1999-12-24 1999-12-24 Serrure de portes d'appareils

Publications (2)

Publication Number Publication Date
EP1111175A1 EP1111175A1 (fr) 2001-06-27
EP1111175B1 true EP1111175B1 (fr) 2004-03-03

Family

ID=8239729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125878A Expired - Lifetime EP1111175B1 (fr) 1999-12-24 1999-12-24 Serrure de portes d'appareils

Country Status (3)

Country Link
EP (1) EP1111175B1 (fr)
AT (1) ATE261047T1 (fr)
DE (1) DE59908761D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032742B3 (de) * 2010-07-29 2011-05-26 Steinbach & Vollmann Gmbh & Co. Kg Verschluss für eine Gerätetür
DE102010032743B3 (de) * 2010-07-29 2012-02-02 Steinbach & Vollmann Gmbh & Co. Kg Verschluss für eine Gerätetür

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7089948B2 (en) * 2002-05-03 2006-08-15 Whirlpool Corporation In-sink dishwasher with integrated latch
EP1445543B1 (fr) * 2003-02-07 2006-05-03 Rahrbach GmbH Serrure pour portes d'appareils
DE10309594B4 (de) * 2003-03-05 2006-04-20 Convotherm Elektrogeräte GmbH Verschlusseinrichtung für die Tür von Großküchengeräten
ITMI20070082U1 (it) 2007-03-12 2008-09-13 Ik Interklimat S P A Chiusura per forni e similari perfezionata
DE102009016812B4 (de) 2008-04-11 2022-02-03 Rahrbach Gmbh Türverschluss für ein thermisches Gar- und/oder Backgerät
DE102009017246A1 (de) 2008-04-11 2009-10-15 Rahrbach Gmbh Verschluss für Gerätetüren mit zusätzlichem Sperriegel
DE202008005301U1 (de) 2008-04-16 2009-08-27 Klouda, Jaroslav, Dipl.-Ing. Türverschluss für ein thermisches Gar- und/oder Backgerät
DE102009014233A1 (de) 2008-12-23 2010-06-24 Convotherm Elektrogeräte GmbH Verschluss für eine Tür eines Gargeräts, Gargerät und Verfahren zum Betreiben eines Gargerätes
DE102009023837A1 (de) 2009-06-04 2010-12-09 Rahrbach Gmbh Türseitiger Teil eines Verschlusses
DE102010007952B4 (de) 2009-08-21 2021-08-26 Convotherm Elektrogeräte GmbH Verschluss für eine Tür eines Gargeräts
DE102011051884A1 (de) 2011-07-15 2013-01-17 Rahrbach Gmbh Verschluss zum Verschließen einer Tür, insbesondere einer Gerätetür
DE202015101338U1 (de) * 2015-03-16 2016-06-22 Steinbach & Vollmann Gmbh & Co. Kg Verschluss
DE102016110744A1 (de) * 2016-06-10 2017-12-14 Rational Aktiengesellschaft Türschloss für ein Gargerät sowie Gargerät mit einem solchen Türschloss
DE102017127924A1 (de) 2017-11-27 2019-06-19 Rahrbach Gmbh Verschluss zum Verschließen einer Tür
GB2584118B (en) * 2019-05-22 2023-08-09 Storm Environmental Ltd Locks
EP3900539B1 (fr) * 2020-04-20 2022-08-10 Bonferraro S.p.A. Four de cuisson comportant une poignée de porte dotée d'un système de verrouillage automatique en position ouverte

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US2857191A (en) * 1955-04-18 1958-10-21 Reinhardt E Buchholtz Closure fastener
FR1251521A (fr) * 1960-02-15 1961-04-21 Système de verrouillage de sûreté à commande à distance
DE2457254A1 (de) * 1974-12-04 1976-06-10 Agfa Gevaert Ag Einschnappende verriegelungsvorrichtung
US5050296A (en) * 1990-06-07 1991-09-24 International Business Machines Corporation Affixing pluggable pins to a ceramic substrate
DE4208216A1 (de) * 1992-03-14 1993-09-16 Wiesheu Gmbh Tuerverschluss fuer geraete
EP0806532A3 (fr) * 1996-05-09 1999-03-17 Bloxwich Engineering Limited Dispositif de verrouillage pour un capot de véhicule
EP0908590A1 (fr) * 1997-10-11 1999-04-14 Rahrbach GmbH Dispositif de fermeture pour porte d'un appareil à température élevée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032742B3 (de) * 2010-07-29 2011-05-26 Steinbach & Vollmann Gmbh & Co. Kg Verschluss für eine Gerätetür
DE102010032743B3 (de) * 2010-07-29 2012-02-02 Steinbach & Vollmann Gmbh & Co. Kg Verschluss für eine Gerätetür

Also Published As

Publication number Publication date
DE59908761D1 (de) 2004-04-08
EP1111175A1 (fr) 2001-06-27
ATE261047T1 (de) 2004-03-15

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