EP1978191B1 - Dispositif de verrouillage pour porte coulissante de chambre froide - Google Patents

Dispositif de verrouillage pour porte coulissante de chambre froide Download PDF

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Publication number
EP1978191B1
EP1978191B1 EP20080101955 EP08101955A EP1978191B1 EP 1978191 B1 EP1978191 B1 EP 1978191B1 EP 20080101955 EP20080101955 EP 20080101955 EP 08101955 A EP08101955 A EP 08101955A EP 1978191 B1 EP1978191 B1 EP 1978191B1
Authority
EP
European Patent Office
Prior art keywords
seat
locking member
fastener device
component
door
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.)
Not-in-force
Application number
EP20080101955
Other languages
German (de)
English (en)
Other versions
EP1978191A3 (fr
EP1978191A2 (fr
Inventor
Paolo Casiraghi
Carlo Fabris
Fabio Pericotti
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.)
IK-INTERKLIMAT SpA
Original Assignee
IK-INTERKLIMAT SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IK-INTERKLIMAT SpA filed Critical IK-INTERKLIMAT SpA
Publication of EP1978191A2 publication Critical patent/EP1978191A2/fr
Publication of EP1978191A3 publication Critical patent/EP1978191A3/fr
Application granted granted Critical
Publication of EP1978191B1 publication Critical patent/EP1978191B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0042—For refrigerators or cold rooms
    • E05B65/0053—For refrigerators or cold rooms with safety release from inside
    • 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
    • E05B15/0093—Weight arrangements in locks; gravity activated lock parts
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0052—Locks mounted on the "frame" cooperating with means on the "wing"
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
    • E05B63/20—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/08—Locks or fastenings for special use for sliding wings
    • E05B65/0864—Locks or fastenings for special use for sliding wings the bolts sliding perpendicular to the wings

Definitions

  • the present invention relates to a fastener device in accordance with the introduction to the main claim.
  • a known device associated with a wall close to an opening in said coldroom relative to which the door moves (along a path parallel to a floor or lower surface), comprises a seat into which an element projecting from the door, such as a hook-like element or chain, penetrates. On penetrating into the corresponding seat, this projecting element is locked therein in order to fasten the door to the wall in its closed position.
  • Another known solution uses a device formed with two parts movable relative to each other in the manner of a sliding drawer to retain between them a projecting element, specifically a chain, of the sliding door.
  • the two parts can be moved relative to each other if released by a key, whereas they are automatically locked when one is positioned on the other after receiving the projecting door element within them. Only when in this position can said key be removed from the known device.
  • This solution is complicated in use because an operator has to use both hands to achieve coupling between the device and the projecting door element, this being extremely uncomfortable.
  • the key is always associated with the known device when the door is open, hence lacking security.
  • US 3 870 354 describes a drop bolt locking combination capable of snap latch operation with a resiliently biased bolt element and cooperating strike member which enables the bolt element to be moved to a withdrawn position and then snapped into locking arrangement with the strike member upon closing of the door.
  • the bolt element has a plurality of fingers having spring biased ball bearing therein while the strike member has beveled flanges thereon for engaging the ball bearings and moving the bolt element a sufficient distance against spring biasing to permit closing of the door without the necessity of withdrawing the bolt element by knob operation.
  • EP 1 701 119 A2 discloses a fastener device for a coldroom pivoting door comprising a pusher member connected to a pushbutton positioned within the coldroom.
  • the object of the present invention is to provide an alternative fastener device for a coldroom sliding door, which enables the door to be opened from inside the coldroom.
  • a particular object of the invention is to provide a fastener device for a coldroom sliding door which enables this latter to be fastened in its closed position totally automatically without the need for an operator to intervene on the device.
  • Another particular object is to provide a device of the stated type which does not require any vertical movement of the door relative to the surface along which it slides, and which therefore does not require particular means to ensure door sealing once it has been retained by said device.
  • a device of the invention is indicated overall by 1. It comprises a body 2 presenting two components 3 and 4, the first component 3 presenting a locking mechanism for a sliding door (not shown), said mechanism being protected by the second component 4 (being inserted into a cavity 5) when this latter is coupled to the first component.
  • the body 2 comprises a hook-shaped portion 7 presenting a first part 8 disposed parallel to and spaced from a portion 9 of the first component 3, to hence define an aperture 10 through which the projecting element, in this case a ring 11 of a chain (not shown) associated with the sliding door, is inserted to lock the movement of said door after it has closed an opening provided in a wall (not shown).
  • the device 1 is positioned on this wall, in proximity to the opening.
  • the hook-shaped element is defined by an L-shaped portion 15 presenting a first part 16 perpendicular to a base 3A of the component 3, and a second part 17 parallel to this base, this latter being disposed above the portion 9 of the first component 3 of the body 2.
  • the lever element 22 presents a free end 26, preferably carrying a locking member 25 for the projecting door element 11.
  • This member is defined in the illustrated example by a spherical body associated freely with (or glued to) said end 26, and emerges from an aperture or seat 29 provided in the portion 9 of the component 3 of the body 2.
  • This portion 9 is an element coupled to the shoulders 18 and 20 of said component 3.
  • the spherical body or locking member 25 of the lever element 22 can assume two working positions relative to the corresponding seat 29: in a first position (shown in Figures 1 , 2 and 6 ) it projects therefrom to enter the aperture 10 of the body 2, while in the second position it retracts into said seat to free the aperture 10.
  • the retraction movement into the seat occurs totally automatically when the projecting door element 11 is inserted into the aperture 10, by its pressure on said spherical body 25. This pressure is transferred to the lever element 22, which rotates with the shaft 21 against the spring 23 (or equivalent elastic element) to hence enable the sphere to retract into the corresponding seat.
  • the spring 23 returns the spherical body 25 to the outside of its seat 29, to lock the projecting element or chain ring 11 within the aperture 10 of the device 1 (to hence fasten the door to the device 1 in its closed position).
  • a rotary element 30 is provided presenting an arch-shaped portion 31 rising gradually from a base 32 such that an end 31A of this portion 31 is sunken relative to a second end 31 B thereof.
  • the element 30 is mounted about a pin 35 of the first component 3 of the body 2 and can rotate about it by the action of a usual door lock 38 (positioned on the base 32) having a known pawl 39 which cooperates with a tang 40 projecting laterally from the portion 31 of the element 30 and is integral therewith.
  • the device 1 is mounted on the wall vertically, such as to present the aperture 10 facing the surface along which the door slides.
  • the key with one hand by the user
  • the element 11 is allowed to escape by gravity from said aperture 10 when the spherical body 25 retracts into the corresponding seat.
  • a cylindrical element 49 extends on one side 50 of the first component 3 of the body 2 of the device 1 (the side on which said first component 3 is fixed to a wall), and is associated with a rod 51 connected to a pushbutton (not shown) positioned inside the coldroom.
  • This solution enables the door (when closed) to be opened from inside the coldroom, to enable a person present therein to leave.
  • the rod cooperates with a portion 54 of the lever element 22; this cooperation results in lifting of the end 43 of the element 22 from the base 3A of the first component 3 of the device body 2, i.e. a rotation of the element 22 about the shaft 21, this rotation causing the spherical body 25 to retract into its seat and the subsequent release of the element 11 from the fastener device, making it possible to open the door from inside the coldroom.
  • the spring 23 cooperates with a lever 56 comprising a first arm 57 (acting on the spring 23) and a second arm 58, said lever being pivoted about a pin 60 associated with the component 3 of the device body 2.
  • the arm 58 presents an end portion 58A cooperating with a switch 62 (associated with an electrical connection positioned within the component 3 of the body 2) operating an electric motor for automatically moving the door into its open position.
  • the spherical body 25 is freely supported by the end 26 of the lever element 22 and cooperates, urged by said element 22, with a stop element 65 rigid with the second part 17 of the L-shaped portion 15 rigid with the first component 3 of the device body 2.
  • the use of the device of the invention is apparent from the aforegoing description.
  • the device is easy to use by the user in that in order to fasten the door in the closed position, the user does not have to act on the device 1, while to open the door the user has merely to rotate the key in the lock, leading to the simple release, advantageously by gravity, of the element 11 from the device 1.
  • the key serves only to open the door and can be removed after opening.
  • FIGS 7 to 10 show a variant of the invention.
  • the lever element 22 can be seen provided with a (lateral) portion 100 facing the second arm 58 of the lever 56.
  • the portion 100 comprises a recess 101 bounded by raised edges 102 and 103 with which a projecting tooth 104 associated with said second arm 58 cooperates.
  • This tooth has an undercut and is arranged to rotate the lever element 22 about the shaft 21 when the ring element 11 is inserted into the aperture 10.
  • the ring presses on a pin or pawl 110 associated with the part 16 of the portion 15 and movable within a seat 111 thereof.
  • the pin 110 penetrates into the seat until it contacts the lever 56 and makes it rotate about the pin 60.
  • This rotation causes said tooth 104 to act on the end 102 of the recess 101, to rotate (by thrusting) the lever element 22 about the shaft 21.
  • the spherical body or locking member 25 becomes positioned against the stop element 65 to lock the element 11 within the aperture 10.
  • Said element 11 is released by a key as in the case of the embodiment of Figures 1-6 or by the action of the rod 51 on the element 22. It should be noted that once the spherical body has been brought into its seat 29, it remains therein as the spring 23 tends to maintain the lever element 22 rotated such as to urge the spherical body 25 to the outside of said seat 29.
  • the spring 23 presents a second end 23K superposed on the end 43 of the lever element 22.
  • lever element 22 can present an end body 25 integral with it or shaped differently from a sphere; this embodiment and others obtainable by the expert of the art, always in accordance with the appended claims, are also to be considered as falling within the scope of the present invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lock And Its Accessories (AREA)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Claims (19)

  1. Dispositif de fixation (1) pour une porte coulissante le long d'une surface ou du plancher à travers une ouverture d'une chambre froide, ce dispositif comprenant un corps en forme de boîte (2) qui présente deux composants (3, 4), couplés ensemble de façon à pouvoir être détachés, le premier (3) de ces composants (3, 4) étant fixable à une paroi relativement à laquelle la porte se déplace et supportant un moyen pour brider un contremoyen de fixation (11) associé à cette porte, le deuxième composant (4), couplé au premier (3) de façon à pouvoir en être détaché, étant creux et superposé audit moyen de bridage (25), le corps (2) présentant une portion en forme de crochet (7) parallèle à une surface (9) du même, pour définir un logement (10) apte à recevoir ledit contremoyen de fixation (11), le corps (2) comprenant, à l'intérieur dudit logement (10) en correspondance de la portion en forme di crochet (7), un élément de verrouillage (25) qui se déplace par rapport à un logement correspondant (29) et qui définit ledit moyen de bridage, ledit élément de verrouillage (25) étant capable de prendre deux positions de travail, dans la première position de travail dépassant son propre logement (29) jusqu'au logement (10) du corps (2) du dispositif, de façon à coopérer avec le contremoyen de fixation (11) de la porte et verrouiller ce dernier au mur, dans la deuxième position rentrant dans son logement (29) pour consentir audit contremoyen de fixation (11) de se séparer du moyen de bridage (25), le passage de l'élément de verrouillage (25) de la première à la deuxième position étant accompli par le mouvement d'un élément fonctionnant à clé (38), caractérisé en ce que le dispositif de fixation (1) comprend un élément de poussée (51), de façon à ce que l'élément de verrouillage (25) puisse être mis en fonction par l'élément de poussée (51) lié à un bouton-poussoir apte à être placé dans la chambre froide.
  2. Dispositif de fixation (1) selon la revendication 1, caractérisé en ce que ledit élément de verrouillage (25) est lié rigidement à un élément levier (22) associé à un arbre (21) à l'intérieur du premier composant (3) et tournant par rapport à des appuis latéraux (18, 20), ledit élément levier (22) et ledit arbre (21) tournant autour de l'axe longitudinal de ce dernier contre un élément de culée élastique (23).
  3. Dispositif de fixation (1) selon la revendication 2, caractérisé en ce que ledit élément de poussée (51) pénètre dans le premier composant (3) du corps (2) du dispositif et coopère avec l'élément levier (22) pour le faire tourner et pour faire entrer l'élément de verrouillage (25) dans son propre logement, afin de dégager le logement (10) pour le contremoyen de fixation (11) du corps en forme de boîte (2) du dispositif.
  4. Dispositif de fixation (1) selon la revendication 2, caractérisé en ce que l'appui de l'arbre sont des épaulements (18, 20) placés à côté du premier composant (3), avec leur côtés opposés.
  5. Dispositif de fixation (1) selon la revendication 4, caractérisé en ce que deux épaulements latéraux (18) sont placés aux côtés de la première partie (16) d'une portion en forme de L du premier composant (3) qui s'élève à partir d'une base (3A) de ce dernier, ladite première partie (16) étant associée à une deuxième partie (17) parallèle à la base (3A), l'élément de verrouillage (25) étant placé devant ladite deuxième partie (17), ladite deuxième partie (17) appartenant à la portion en forme de crochet (7) du corps (2) du dispositif et formant une ouverture (10) pour accueillir le contremoyen de fixation (11).
  6. Dispositif de fixation (1) selon la revendication 5, caractérisé en ce que ladite deuxième partie (17) de la portion en forme di L (15) coopère avec l'élément de verrouillage (25) pour fermer ladite ouverture (10).
  7. Dispositif de fixation (1) selon la revendication 6, caractérisé en ce que ladite deuxième partie (17) supporte un élément d'arrêt (65) pour ledit élément de verrouillage (25), ledit élément de verrouillage (25) appuyant sur ledit élément d'arrêt (65) quand il ferme l'ouverture (10) du dit dispositif de fixation (1).
  8. Dispositif de fixation (1) selon la revendication 1, caractérisé en ce que l'élément de verrouillage est un corps sphérique (25).
  9. Dispositif de fixation (1) selon les revendications 1, 2 et 8, caractérisé en ce que ledit élément de verrouillage (25) est séparé de l'élément levier (22).
  10. Dispositif de fixation (1) selon la revendication 1, caractérisé en ce que ledit logement (29) de l'élément de verrouillage (25) est prévu à l'intérieur d'une portion (9) du premier composant (3) du corps en forme de boîte (2).
  11. Dispositif de fixation (1) selon la revendication 2, caractérisé en ce que l'élément d'arrêt élastique est un ressort (23) monté autour de l'arbre (21) de l'élément levier (22) et ayant un bras libre (23A) face à la base (3A) du premier composant (3) du corps (2) du dispositif.
  12. Dispositif de fixation (1) selon la revendication 11, caractérisé en ce que ledit bras libre (23A) du dit ressort (23) ou élément de culée élastique coopère avec le premier bras (57) d'un levier (56) qui tourne autour d'un goujon (60) et qui a un deuxième bras (58) pourvu d'une extrémité (58A) coopérant avec un interrupteur (62) lié rigidement au premier composant (3) du corps (2) du dispositif, ledit interrupteur (62) étant connexe à un élément à alimentation électrique.
  13. Dispositif de fixation (1) selon la revendication 12, caractérisé en ce que ledit élément à alimentation électrique est un moteur qui commande la porte de la chambre froide.
  14. Dispositif de fixation (1) selon les revendications 5 et 12, caractérisé en ce que ledit deuxième bras (58) du levier (56) coopère avec un goujon mobile (110) coulissant dans un logement (111) de la première partie (16) de la portion en forme de L (15) et se penchant jusque dans le logement (10) du corps (2) du dispositif, ledit goujon mobile (110) se retirant dans le logement (111) de ladite première partie (16) et coopérant avec ledit deuxième bras (58) pour faire tourner le levier (56) autour de son goujon (60) et pour faire tourner l'élément levier (22) par rapport aux appuis latéraux (18, 20) de l'arbre (21) auquel il est associé, de façon à ce que l'élément de verrouillage (25) quitte son logement (29) et entre dans le logement (10) du corps (2) du dispositif.
  15. Dispositif de fixation (1) selon la revendication 14, caractérisé en ce que ledit deuxième bras (58) du levier (56) présente une saillie (104) placée pour coopérer avec les extrémités (102, 103) d'une encoche (101) dans ledit élément levier (22) et pour le faire tourner.
  16. Dispositif de fixation (1) selon la revendication 2, caractérisé en ce que l'élément levier (22) présente une extrémité (43) placée pour coopérer avec des moyens de déclenchement (30) fournis pour le déplacement forcé de l'élément de verrouillage (25) de l'ouverture (10) du corps (2) du dispositif, où il coopère avec le contremoyen de fixation (11) associé à la porte pour déclencher ces moyens.
  17. Dispositif de fixation (1) selon la revendication 16, caractérisé en ce que lesdits moyens de déclenchement sont un élément tournant (30) fixé à la base (3A) du premier composant (3) du corps (2) du dispositif, ledit élément (30) comprenant une portion arquée (31) qui s'élève à partir d'une base (32) de l'élément (30), la première extrémité (31 A) de ladite portion arquée (31) étant en aval de la deuxième extrémité (31 B) de cette portion, cette première extrémité (31A) étant placée au dessous de l'extrémité (43) dudit élément levier (22) quand ce dernier est dans sa première position de travail, l'extrémité (43) dudit élément levier (22) se déplaçant relativement sur ladite portion arquée (31) en direction de sa deuxième extrémité (31B) en conséquence de la rotation de l'élément tournant (30) autour d'un goujon (35) qui le fixe à la base (3A) du premier composant (3) de façon à déplacer l'élément de verrouillage (25) dans sa deuxième position de travail, ledit élément tournant (30) étant fonctionnant à clé.
  18. Dispositif de fixation (1) selon la revendication 17, caractérisé en ce que la clé doit être introduite dans une serrure (38) placée sur ladite base (32) de l'élément tournant (30), la serrure coopérant avec un tenon (40) rigidement lié à la portion arquée (31) et agissant sur elle pour accomplir ladite rotation de l'élément tournant (30) sur la base (3A) du premier composant (3) du corps (2) du dispositif.
  19. Dispositif de fixation (1) selon la revendication 1, caractérisé en ce que la portion en forme de crochet (7) de son corps (2) s'ouvre, pendant l'usage, envers une surface o un plancher le long desquels la porte coulissante de la chambre froide glisse, de cette façon permettant au contremoyen de fixation (11) de se séparer automatiquement dudit corps quand l'élément de verrouillage (25) passe de sa première à sa deuxième position de travail.
EP20080101955 2007-04-03 2008-02-25 Dispositif de verrouillage pour porte coulissante de chambre froide Not-in-force EP1978191B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20070678 ITMI20070678A1 (it) 2007-04-03 2007-04-03 Dispositivo di chiusura di una porta scorrevole di una cella frigorifera

Publications (3)

Publication Number Publication Date
EP1978191A2 EP1978191A2 (fr) 2008-10-08
EP1978191A3 EP1978191A3 (fr) 2012-12-12
EP1978191B1 true EP1978191B1 (fr) 2014-05-14

Family

ID=39642648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080101955 Not-in-force EP1978191B1 (fr) 2007-04-03 2008-02-25 Dispositif de verrouillage pour porte coulissante de chambre froide

Country Status (2)

Country Link
EP (1) EP1978191B1 (fr)
IT (1) ITMI20070678A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206667968U (zh) * 2016-10-14 2017-11-24 东莞市怡丰锁业有限公司 一种行李箱锁扣

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071958A (en) * 1961-08-30 1963-01-08 Truson Corp Protective device for doors
US3657908A (en) * 1970-06-02 1972-04-25 Taylor Lock Co Chain door lock
US3870354A (en) * 1973-06-18 1975-03-11 Herman Prahl Drop bolt snap latch locking mechanism
AU543761B2 (en) * 1980-04-02 1985-05-02 Lockwood Security Products Pty Limited Window fastening
GB2277553B (en) * 1993-04-29 1996-07-31 Charles Augustine Beare Lock
DE19906622A1 (de) * 1999-02-17 2000-08-24 Bremicker Soehne Kg A Fensterschloß
ITMI20050078U1 (it) * 2005-03-09 2006-09-10 Ik Interklimat S P A Chiusura per porte di celle frigorifere atta a permettere la facile regolazione della posizione della porta rispetto ad una struttura della cella

Also Published As

Publication number Publication date
EP1978191A3 (fr) 2012-12-12
EP1978191A2 (fr) 2008-10-08
ITMI20070678A1 (it) 2008-10-04

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