EP0457014A2 - Fermeture pour porte et armoire-chariot équipé d'une telle fermeture - Google Patents

Fermeture pour porte et armoire-chariot équipé d'une telle fermeture Download PDF

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Publication number
EP0457014A2
EP0457014A2 EP91105454A EP91105454A EP0457014A2 EP 0457014 A2 EP0457014 A2 EP 0457014A2 EP 91105454 A EP91105454 A EP 91105454A EP 91105454 A EP91105454 A EP 91105454A EP 0457014 A2 EP0457014 A2 EP 0457014A2
Authority
EP
European Patent Office
Prior art keywords
latch
rod
actuating element
door
spring
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.)
Withdrawn
Application number
EP91105454A
Other languages
German (de)
English (en)
Other versions
EP0457014A3 (en
Inventor
Heinz Pecher
Robert Einsle
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.)
Zarges Leichtbau GmbH
Original Assignee
Zarges Leichtbau 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
Application filed by Zarges Leichtbau GmbH filed Critical Zarges Leichtbau GmbH
Publication of EP0457014A2 publication Critical patent/EP0457014A2/fr
Publication of EP0457014A3 publication Critical patent/EP0457014A3/de
Withdrawn legal-status Critical Current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
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A47B2031/002—Catering trolleys

Definitions

  • the invention relates to a cabinet trolley according to the preamble of claim 1 and a door arrangement according to the preamble of claim 13.
  • a cabinet trolley is known from DE-PS 26 30 375, which has proven particularly useful for use in hospitals.
  • fresh laundry has to be transported on a large scale, which expediently remains in a closed container both during transportation and during storage.
  • the known cabinet trolley also allows the door or doors to be closed, the rod lock there being characterized in that the door itself is brought into a position in which it rests on the locking edge of the body. For this purpose, it is lifted into the blocking position by means of a pawl, the central actuating device then becoming an over-center position.
  • the low mass according to the invention when the traps snap shut already gives the generally metallic body of the cabinet trolley or laundry trolley only a slight impact, so that for this reason alone the noise level is greatly reduced. It is convenient if the trap is made from one lightweight, yet dimensionally stable plastic material, which also has more favorable soundproofing properties than steel. Large-area recesses can be provided between the area of the trap guide and the area of the inclined surface of the trap, which further reduce the mass moved when snapping.
  • the trap does not actually abut the body when it snaps, but rather glides along a locking edge.
  • the movement of the latch in the snap direction is limited by a locking stop which is provided on the rod.
  • the rod is in turn designed in such a way that it has a relatively low resonance frequency in the transverse direction, which accordingly is not excited by the snap pulse.
  • the longitudinal resonance frequency of the rod is best selected so that there is no resonance with the vibration triggered by the snap pulse in the area of the trap or its integral multiple.
  • the latch spring is provided to be relatively soft and to give the latch guide such a fit that the spring force introduced only exceeds the braking effect by the latch guide by so much that a safe closing is possible.
  • the trap guide tapers very slightly towards the end.
  • the latch is thereby slowed down very gently towards the end, so that the closing can take place almost silently.
  • a sealing lip of an already provided seal to rest on the inclined surface of the trap. It is particularly favorable here if the sealing lip in the area of the trap as well the further door edge can run at the same height. To achieve this, an angular recess is provided in the inclined surface of the trap, which is supported accordingly on the sealing lip. Due to the soft sealing material, no vibrations are introduced to the body, but rather they are further damped.
  • the use of a hollow profile for the seal is also particularly favorable, since this can adapt to the load conditions both in the area of the door hinge and in the area of the door edge and yields to the shear forces partially applied to the seal when the door is closed, instead of opposing this resistance and thereby Wear out over time.
  • the favorable design of the seal thus offers a kind of sealing rolling.
  • the sealing profile can be designed as a one-piece extruded plastic profile, which can also clamply engage in a corresponding fastening groove.
  • a locking stop such as the outer end of each rod, is used, which locking stop locks the latches in the closed position and, for example, also prevents them from being pressed in from the outside, for example from above and below the cabinet trolley, and thereby a Opening the cabinet trolley is also possible in the locked position.
  • an angular profile in the manner of a striking plate for the formation of the locking edge and at the same time for receiving or engaging the seal.
  • an extruded aluminum profile can be used. Its front inner edge can only be slightly broken in a manner known per se, or - when using the angular recess in the trap - have an inclined surface corresponding to the inclined surface of the trap. If the inclined surface of the striking plate is longer than the tangent of the triangle formed by the angular recess, the latch moves smoothly inwards if the door is pressed into the closed position without actuating the actuating element.
  • a cabinet trolley 10 has two doors 12 and 14 and a body 16, the door 14 being pivotably mounted on the body 16 with two hinges 18 and 20.
  • the door 14 holds the door 12 closed when the door 14 is closed.
  • the door 14 has a rod lock 22 with a central actuating element 24. From the rod lock, the upper rod 26 and the lower rod 28 can be seen in FIG. 1.
  • the actuating element 24 has a pawl 30 which extends substantially horizontally in a normal position, which is shown in solid lines in FIG. 1.
  • the door 14 - and thus the door 12 - is locked, while the door 14 - and thus the door 12 - is released by depressing the pawl 30.
  • the pawl 30 is pivotally mounted on an axis 32 and is rotatably connected to a locking plate 34.
  • the closing plate 34 has two joints 36 and 38 that are laterally equally spaced from the axis.
  • the rod 26 is hinged to the hinge 36 on the striker plate 34 and the rod 28 is hinged to the hinge 38 on the striker plate 34.
  • a key lock 39 is provided below the pawl 30, the function of which is explained in more detail with reference to FIG. 5.
  • the actuating element 24 has a spiral actuating spring 40 which preloads the pawl 30 in the direction of the locking position (cf. FIG. 1).
  • the spring force of the actuating spring 40 is selected at least so that the weight of the pawl 30 is safely compensated.
  • the rod 26 has a part 42 facing away from the actuating element 24, which in the exemplary embodiment according to FIG. 2 also corresponds to the end of the rod 26.
  • the part 42 has a spring stop 44 which acts against a corresponding stop surface of a latch 46.
  • the stop 44 acts downwards, so that the latch 46 cannot be moved upward beyond the position predetermined by the spring stop 44 due to the action of the spring stop 44.
  • a latch spring 48 presses the latch 46 against the spring stop 44. It is supported on a cross pin 50 on the rod 26 and acts against an end face 52 of the latch 46.
  • the trap 46 has a blind hole 54 into which the end of the rod 26 can enter.
  • the rod 26 also has a further cross pin 54, which i.a. forms the spring stop 44.
  • the cross pin 54 runs in elongated holes 56a and 56b, which are formed in the case 46.
  • a blind hole end face 58 here forms a locking stop 60 for the latch 46, the function of which is explained below.
  • the latch 46 is guided by a latch guide 62, which in the exemplary embodiment shown is formed by a front plate 64 and a rear guide plate 66 of the door 14.
  • the trap 46 has laterally large recesses 68a and 68b, which on the one hand serve to reduce weight, on the other hand increase the length of the trap 46 somewhat, so that the guidance is improved.
  • Recesses are also provided in a latch area 70 of the latch 46, specifically both an angular recess 72 in an inclined surface 74 of the latch and in the blocking surface 76 opposite the inclined surface 74 in the form of the recess 78 there.
  • the recess 78 is bridged by reinforcing ribs.
  • the locking surface 76 rests on a locking edge 80 which is provided on the body 16.
  • the door 14 is thus securely closed.
  • a sealing lip 82 of a seal 84 then forms a contact surface in the angular recess 72 of the latch 46, against which the latch 46 is pressed due to the action of the latch spring 48.
  • the locking edge 80 is formed on a striking plate 86, the front lower edge of which is chamfered.
  • the front bevel of the striking plate 86 interacts with the inclined surface 74 of the latch 46 and presses it down against the action of the latch spring 48.
  • the radius of the bevelling of the striking plate 86 is chosen so that the recess 72 is bridged in the inclined surface 74.
  • the guide plate is also in the closed position 66 to a hollow area of the seal 84.
  • This area deforms very elastically and also enables shear movements.
  • the seal provides a stop for the closed position of the door, since the rigidity of the seal 84 increases considerably when the hollow area of the seal 84 is compressed.
  • the seal 84 also acts as a damping element.
  • the locking edge 180 is attached to a profile part 186, which for the sake of simplicity is also referred to as a striking plate 186.
  • the striking plate 186 ends upward / forward in a defined inclined surface 188, the angle of which with respect to the horizontal corresponds to the angle of the inclined surface 174 with respect to the horizontal. According to a modification, the angle of the inclined surface 188 is somewhat smaller than the angle of the inclined surface 174.
  • a buffer block 184 is provided in the area of the lower latch 176, which also consists of an elastic material such as rubber or plastic and supports the door in the horizontal direction.
  • the latch 176 is supported in the locked position here directly on the striking plate 186, so that the lower latch 176 moves somewhat downward when it is moved into the locked position.
  • the striking plate 86 shown in FIG. 2 can also extend along the sides of the cabinet trolley 10 as a profile 286.
  • Fig. 4 is a section in the area of the hinge 18 of the door 14 shows.
  • the profile 286 differs from the striking plate 86 only in that a recess is provided in the striking plate 86 for receiving the locking area 70 of the latch 46, which was created subsequently .
  • the inclusion of the seal in a groove 290 and a corresponding holding area 292 for securely supporting the seal 84 in the groove 290 corresponds to the design in the area of the upper latch 46. Only the contact area, that is the sealing lip 82 of the seal 84 according to FIG. 2 separated here, so that there is the possibility of also producing the seal 84 in one piece - for example from elastomer - and subsequently separating the contact and damping area in all areas except in the area of the trap 46.
  • the design of the cabinet trolley 10 with the external profile 286 also has the advantage that the door 14 can be pivoted about an axis 294 which lies outside the region of a side wall 296 of the cabinet trolley 10. This allows free access to the front corner of the side wall 296; Insert boards can be inserted and changed more easily, and cleaning in the hygiene-critical corner areas is easier.
  • FIG. 5 shows the structure of the central actuating element 24.
  • the hinge 38 has a pin 302 which creates a connection between the closing plate 34 and the rod 28.
  • the joint 36 has a pin 304 which establishes a connection to the rod 26.
  • the pins 302 and 304 are each guided in elongated holes 306 and 308, which have the shape of a partial circle and limit the pivoting movement of the pawl 30.
  • the rod 28 is equipped with a locking device 310, to which a profiled sheet 312 and a spring tongue 314 belongs.
  • a profiled sheet 312 and a spring tongue 314 belongs.
  • the profiled plate 312 bears against a catch 316.
  • the spring tongue 314 which is articulated on the door 14 somewhat above and runs freely below, initially extends somewhat downward and then snaps into the second catch 318.
  • the circular movement of the rod 28 on the joint 38 supports the release from the normal position on the detent 316. This means that the profiled plate 312 is simultaneously moved somewhat away from the spring tongue 314, so that the detent 316 is released more easily.
  • the rod 26 In the locked position, the rod 26 is also in an upper position. This enables a key lock 320 of the key lock 39 to be pivoted into the vertical position, which then prevents the rod 26 from lowering and thus preventing the rod lock 22 from being transferred into the normal position. The possibility of using a very simple key lock 39 is thus favorable.
  • a lower end 322 of the rod 26, which is intended to bear against the key bolt 320, can be provided with an offset 324, which enables the rod lock 22 to be built very flat over its entire height and can also be installed in thin doors .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Lock And Its Accessories (AREA)
EP19910105454 1990-05-14 1991-04-06 Door locking device and cabinet-carriage equipped therewith Withdrawn EP0457014A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9005487U DE9005487U1 (de) 1990-05-14 1990-05-14 Schrankwagen
DE9005487U 1990-05-14

Publications (2)

Publication Number Publication Date
EP0457014A2 true EP0457014A2 (fr) 1991-11-21
EP0457014A3 EP0457014A3 (en) 1992-01-02

Family

ID=6853798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910105454 Withdrawn EP0457014A3 (en) 1990-05-14 1991-04-06 Door locking device and cabinet-carriage equipped therewith

Country Status (2)

Country Link
EP (1) EP0457014A3 (fr)
DE (1) DE9005487U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0955432A3 (fr) * 1998-05-08 2002-12-11 Surelock McGill Limited Dispositif de verrouillage
BE1023548B1 (nl) * 2015-10-28 2017-05-02 PARYS Emmanuel Diederich Camille VAN Sluitmechanisme voor een raam of deur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742183A1 (fr) * 1995-12-06 1997-06-13 Croisee Ds Cremone perfectionnee a dispositif de securite, son application notamment a un ouvrant de baie et dispositif de securite pour une cremone
DE19943214C2 (de) * 1999-09-09 2003-04-10 Dorma Gmbh & Co Kg Stangenverriegelung für Flügel von Fenstern oder Türen
IT250583Y1 (it) * 2000-11-21 2003-09-24 Conf Plastic S R L Carrello-armadio senza giunzioni interne

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1393204A (fr) * 1960-12-30 1965-03-26 Dispositif destinés à rendre partiellement ou en totalité, silencieuse la manoeuvre de fermeture et d'ouverture des portes, fenêtres ou autres
US4015454A (en) * 1976-03-29 1977-04-05 Union Products, Incorporated Latching assembly for cap door

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0955432A3 (fr) * 1998-05-08 2002-12-11 Surelock McGill Limited Dispositif de verrouillage
BE1023548B1 (nl) * 2015-10-28 2017-05-02 PARYS Emmanuel Diederich Camille VAN Sluitmechanisme voor een raam of deur
EP3162993A1 (fr) * 2015-10-28 2017-05-03 Emmanuel Van Parys Mécanisme de verrouillage pour une fenêtre ou une porte

Also Published As

Publication number Publication date
DE9005487U1 (de) 1990-09-06
EP0457014A3 (en) 1992-01-02

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