EP1162334B1 - Gleit- und brandsicheres Schloss - Google Patents

Gleit- und brandsicheres Schloss Download PDF

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Publication number
EP1162334B1
EP1162334B1 EP20010401071 EP01401071A EP1162334B1 EP 1162334 B1 EP1162334 B1 EP 1162334B1 EP 20010401071 EP20010401071 EP 20010401071 EP 01401071 A EP01401071 A EP 01401071A EP 1162334 B1 EP1162334 B1 EP 1162334B1
Authority
EP
European Patent Office
Prior art keywords
latch
lock
bolt
auxiliary
melting point
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
EP20010401071
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English (en)
French (fr)
Other versions
EP1162334A1 (de
Inventor
Robert Mangin
Pascal Magnain
Christian Darmanin
Hervé Habert
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.)
Assa Abloy France SAS
Original Assignee
Vachette SA
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Filing date
Publication date
Application filed by Vachette SA filed Critical Vachette SA
Publication of EP1162334A1 publication Critical patent/EP1162334A1/de
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Publication of EP1162334B1 publication Critical patent/EP1162334B1/de
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
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/104—Locks or fastenings for special use for panic or emergency doors actuated in response to heat, e.g. with fusible element, bimetal, memory shape or swelling material
    • 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
    • E05B15/10—Bolts of locks or night latches
    • E05B15/102—Bolts having movable elements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/124—Fastening devices with bolts moving pivotally or rotatively with latching action with latch under compression force between its pivot and the striker

Definitions

  • the present invention relates to an anti-panic bolt lock tilting device designed to withstand fire, for example to equip fire doors, especially double doors, see for example US 5,890,752.
  • lock bolts including anti-panic locks of the tilting bolt type, of a low-melting metal alloy, for example Zamak®, whose melting point is in the order of 410 ° C, by an injection molding process.
  • a bolt is ten to fifteen times cheaper than a steel bolt.
  • the door on which is mounted the anti-panic lock must be able to hold in closed position under the extreme physical conditions of a fire, French standards requiring a fire resistance of the door greater than one hour, while a Zamak® bolt has fire resistance of the order of 4 minutes.
  • the temperature in the building can exceed 950 ° C, resulting in melting of low melting point bolts above.
  • the plaintiff company has proposed in the application No. 9915043 filed on November 30, 1999 to mitigate this problem by providing the lock of a second bolt in material high melting point, for example steel whose melting point is at 1200 ° C or brass with a melting point of 1100 ° C.
  • This second bolt is secured to the bolt low melting point and intended to provide him when it goes into fusion but does not cooperate with the waste during the normal use of the lock.
  • a door closing for example a corridor to a end of which declared a fire is under pressure very important differential, resulting from the fact that one side of the door is at ambient temperature and the other side is subjected to fire, differential pressure that can be exerted in the direction of its opening, even before the temperature rises sufficiently for cause melting of the low melting point bolt. So, it has been found that this differential pressure, and / or the expansion of the leaf on which is mounted a lock, induces very large constraints on the bolt, in particular at the midpoint of the leaf, which may, when the pressure exceeds a value of approximately 200 kg, slide the bolt to low melting point on the strike causing a partial opening or a curve of the leaf on which is mounted the lock.
  • the present invention therefore aims to provide a lock of the type defined above, provided with a bolt material low melting point and a bolt made of a material with a high melting point, a formed assembly a lock and a strike, and a system of a mounted lock on a mobile leaf of a door and a strike mounted on a second leaf in the case of a double door or on an amount in the case of a single door, which are able to maintain the door in substantially closed position despite the possible sliding bolt material low melting point on the striker.
  • the invention has as its first object a lock comprising a housing made of a material with a high melting temperature intended to be fixed to a door, a bolt made of a material melting temperature is lower, said bolt being mounted on said housing to be movable between a closed position in which it protrudes outside the housing through an opening of this and is suitable, at room temperature of use of the lock, to cooperate with a strike to block the door in the closed position and an open position in which said bolt is returned to said housing to allow the opening of the door, an actuator coupled to said bolt and operable from outside said housing for passing said bolt from its closed position to its position opening, characterized by the fact that said lock also includes an auxiliary bolt made of a material with a high melting temperature, which is mounted on the housing so as to be movable between a position of closure in which a portion of said auxiliary bolt projects the outside of said housing through said opening thereof, and a opening position in which said auxiliary bolt is returned to said housing to allow the opening of the door, said lock also comprising elastic return means
  • said auxiliary bolt is able, in its position decoupled, to be moved relative to said bolt under the solicitation said elastic return means to a so-called closing position fire in which it protrudes outside said housing beyond its closing position.
  • the lock is of the type with a rocking bolt, the bolt and the auxiliary bolt being able to pivot on the same axis integral with the housing, said axis of rotation being substantially parallel to the wall of the housing in which is pierced said opening.
  • said bolt preferably comprises a body having at its free end a blocking surface capable of cooperating with the keeper in the closed position of said bolt; said auxiliary bolt having two flat flanges in the general shape of disk sectors substantially perpendicular to said axis of rotation, and located on the other of said bolt body; said connecting means comprising at minus a coupling member with a high melting temperature extending substantially parallel to said axis of rotation, in at least one hole of one of said bolt and said auxiliary bolt and through less a slot substantially in an arc centered on said axis of rotation pierced in the other of said bolt and said auxiliary bolt; said fuse element being arranged in said at least one slot for binding in rotate the two bolts at room temperature, and to uncouple said bolts with a limited freedom of angular displacement corresponding to the arc of said at least one slot, beyond said low melting temperature, so that in the position of lock closing of the lock, said auxiliary bolt being rejected under the action of said elastic return means to the outside of said housing, has
  • a surface of said bolt turned towards the inside of the housing advantageously comprises a recess arranged so that part of said elastic return means resting on an edge said flanges do not come into contact with the bolt during the rotation of said auxiliary bolt of said limited phase angle to its fire closure position, said part of said return means elastic being able to engage freely in said recess.
  • said connecting means comprise a tube spacer extending substantially parallel to said axis of rotation and connecting the two flanges of the auxiliary bolt, the ends of said tube spacer being integral with said flanges.
  • said at least one organ coupling means comprises said spacer tube, said at least one slit through said bolt, said hole being drilled in each of the two flanges, said fuse element being suitable at ambient temperature of use of the lock, to occupy part of said oblong hole, in order to prevent the displacement of said spacer tube in said hole oblong.
  • said connecting means comprise a coupling pin extending substantially parallel to the axis of rotation and linked with said latch in circular translation about the axis of rotation, one end of said coupling pin being adapted to come into abutment against the housing to define the rotation limit switch said bolt in its closed position of the lock.
  • said coupling pin passes through at least a light pierced in each of said flanges and a hole pierced at through the bolt.
  • a fuse element to be suitable for room temperature of use of the lock, to occupy a part of said light so as to prohibit the movement of said pin coupling in said light.
  • the high melting temperature is greater than 950 ° C, said high temperature melting material being for example of steel, that the intermediate melting temperature is included between 200 ° C and 500 ° C, said melting temperature material intermediate being for example Zamak®, and that the temperature of low melting is below 200 ° C, said low temperature material melting being for example a plastic.
  • the second object of the invention is a set formed of a lock according to the first subject of the invention, and of a strike associated with said lock, characterized in that the radial extension of said flanges of the auxiliary bolt relative to said axis of rotation is substantially greater than the radial extension of the blocking surface of the bolt; said keeper having two grooves substantially perpendicular to said axis of rotation, and located opposite free end edges of said flanges of the auxiliary bolt; said grooves being arranged so that, on the one hand, at a temperature ambient use of said lock, said flanges are engaged in said grooves without cooperating with said striker, and secondly, in the position of fire-closure of the auxiliary bolt, said flanges are able to come into contact with said striker.
  • At least one of said bolt flanges auxiliary has a notch in its free end edge; said notch being fit, in the lock closing position of the lock, to cling to the groove of the strike facing him.
  • the lock is mounted on a mobile leaf and the strike is mounted on a second leaf in the case of a double door or door jamb in the case of a simple door, an intumescent joint able to pass under the action of the heat from a contracted state to a dilated state, being fixed on the singing said mobile leaf all around; said assembly being arranged so that, on the one hand, in the door position closed at temperature ambient use of said lock, said intumescent gasket faces at the edge of said second leaf or said door frame amount of the door, said intumescent gasket being contracted; on the other hand, in the fire position of the auxiliary bolt, said mobile leaf having not moved with respect to its closed position, the notch and the groove facing it are separated by an offset distance, the offset distance being substantially less than half of the thickness of said leaf or of the amount of frame bearing the strike, of so that when said mobile leaf moves under the effect of the differential pressure exerted by the fire, said intumescent gasket is, in its expanded state, able to keep in
  • the invention consists of an anti-panic lock, of the bolt type tilting, comprising, a housing 1 intended to be fixed on one of faces of a door leaf 2, a bolt 3 of the lock mounted in rotation in the housing 1 so as to be able to move between a position of the closure shown in FIG. 1, in which the bolt 3 protrudes from the outside of the housing 1 through an opening 4 thereof and can cooperate with a striker 5, in order to maintain said door in position closed, and an open position (not shown) in which the bolt 3 is returned inside the housing 1.
  • the striker 5 is fixed, either to the door frame in the case of a single door (not shown), either on the second leaf 6 of a double door, as shown on the Figure 1.
  • Leaf 2 has a protruding plate 31 on its face opposite to that carrying the housing 1 to allow the opening of the door only in one direction.
  • the housing 1 comprises a metal sheet, for example steel, which is folded into a U so as to exhibit two flanges 1a and 1b and a base portion 1 c.
  • This base portion 1c is intended to be applied and fixed, for example by means of screws not shown, on one of the two faces of the leaf 2 of the door on which the panic lock is intended to be mounted.
  • the housing 1 may be supplemented by a cover (not shown) covering the space between the two flanges 1a and 1b.
  • the aforementioned opening 4 is cut into the wing of the housing 1 substantially at mid-length of said flange 1a, and has an approximately rectangular shape.
  • the wings 1a and 1b include holes 7, visible in Figure 1, for receiving the ends of the axis of rotation of an operating lever (not shown) for actuating the bolt 3.
  • the bolt 3 is in fact constituted by a main bolt 8 and an auxiliary bolt 9, which are pivotally mounted on a common axis of rotation 10 and which are releasably coupled to one another by connecting means, so as to be connected in rotation about the axis 10 in the coupled position ( Figure 1), and so as to be pivotable relative to each other d an angle ⁇ of limited phase shift around the axis 10 in the decoupled position ( Figure 2).
  • the axis 10 is supported at its ends by support lugs (not shown) which are rigidly fixed to the inner face of the flange 1a of the housing 1.
  • the bolt 8 is manufactured for example by injection molding, in a lower melting point material, for example Zamak®.
  • the bolt 8 includes a body 30 shaped substantially full right cylindrical sector having two lateral faces 8a and 8b which are flat and perpendicular to the axis of rotation 10 and which have a substantially in a disc sector centered on the axis of rotation 10.
  • the body 30 of the bolt 8 further comprises a rear surface 8c (see Figure 1), which is permanently inside the housing 1 and in which is formed a recess 8 f whose function will be explained below, a front surface 8 d which extends for the most part out of the housing 1, obliquely through the opening 4 thereof, when the bolt 8 is in its closing position (FIG.
  • this surface blocking 8th bears on a surface portion 5a of the a keeper 5 to maintain in the closed position the door on which is fixed the lock.
  • the bolt 8 is, moreover, extended on the other side of its axis of rotation 10 relative to the body 30 by a bearing surface 12 having two branches 12 a and 12 b extending substantially parallel to the axis 10 on respective rotation and the other of the lateral faces 8a and 8b of the latch 8, intended to cooperate with an operating lever (not shown).
  • This actuating lever may act on one or the other of the two branches 12 a, 12 b of the bearing surface 12 to rotate the bolt 8, and also the auxiliary bolt 9 coupled thereto, around the axis 10 to move the two bolts from their closed position shown in Figure 1 to their open position (not shown) in which the two bolts are returned to the housing 1.
  • the face front 8 d of the bolt 8 is substantially in the plane of the opening 4 of the housing 1.
  • the auxiliary bolt 9 is made, in accordance with the present invention, a high-melting material so as to withstand fire, for example steel or a cuprous alloy.
  • the auxiliary bolt 9 may be constituted by two flat plates 9 and 9b, substantially disc-shaped area centered on the axis of rotation 10, which are perpendicular to the axis of rotation 10 and spaced apart from each other.
  • the two flanges 9 a and 9 b are intended to be placed on respective sides of the lateral faces 8a and 8b of the latch 8, as shown in Figure 8.
  • Each of the two flanges 9 a and 9 b comprises a circular hole 13 intended to be aligned with holes 14 of the bolt 8 to receive the axis of rotation 10.
  • Each of the two flanges 9 a and 9 b has an edge 17 which extends along a circular arc centered on the axis of rotation 10, each edge 17 is preferably located slightly forward with respect to the cylindrical locking surface of 8 e of the bolt 8, as can be seen in figures 1 and 2.
  • Each of the two flanges 9 a and 9 b also comprises two edges extending substantially radially relative to the axis of rotation 10, namely a rear radial edge, which is aligned with the rear surface 8c of the bolt 8, and a front radial edge which is aligned with the front surface 8d of the bolt 8.
  • the auxiliary latch 9 further comprises a spacer plate 9 c which is connected to a Seui holding the radial edge of each of the two flanges 9 a and 9 b.
  • this spacer plate 9 c largely covers the end face 8 of the bolt 8.
  • this front surface 8d has a recess 18 width and depth corresponding to the thickness of the spacer plate 9 c which extends from a side face 8a to the other side face 8 b of the bolt 8 and which, in the assembled state of the two bolts 8 and 9, the strut-receiving plate 9 c auxiliary bolt 9, so that this spacer plate is substantially flush with the front surface 8 d of the bolt 8.
  • the edge 6 has the other leaf 6 comes into sliding contact on the spacer plate 9c of the auxiliary bolt 9 which is more resistant to wear than the bolt 8 of low melting point material.
  • the axis of rotation 10 has ends which clearly projects beyond the two flanges 9 a and 9 b of the auxiliary latch 9 in order to permit mounting of said axis in the support legs mentioned above.
  • the projecting ends of the axis of rotation 10 carry a spring 19, visible in Figures 1, 2 and 3, for biasing the auxiliary bolt 9 to its closed position.
  • the spring may for example be constituted by a steel wire spring which is bent in a U shape, the base portion 19 a abuts against the rear edge of the two flanges 9 a and 9 b the auxiliary bolt 9, while each of the two legs 19 b of the spring 19 extends substantially at right angle from the base portion 19a, and is wound several turns around a respective end of the axis of rotation 10, and then extends again substantially perpendicular to the base portion 19 is leaning against the inner face of the flange 1a of the casing 1.
  • the base portion 19 a is located in front the recess 8 f of the rear surface 8c of the bolt 8, so that it is not in contact with the bolt 8.
  • Each of the two flanges 9 a and 9 b includes a slot 15 substantially in an arc of circle centered on the rotation axis 10 for alignment with holes 16 of the bolt opening 8 for receiving a coupling pin 11.
  • the pin coupling 11, although shorter than the axis of rotation 10, has ends 11a and 11b which protrude beyond the flanges 9a and 9b of the auxiliary latch 9, as shown in Figure 5 so as to abut against the inner surface of the wing 1 has, on both sides of the opening 4, when the bolt 8 is in its closed position.
  • the through holes 16 are fitted to the section of the coupling pin 11 so that it is connected to the bolt 8 in circular translation about the axis 10.
  • the slots 15 of the auxiliary bolt 9 comprise two angularly spaced ends, the end 15a being located inwardly of the housing 1 and the end 15 b being located outwardly of the housing 1. in the coupled state of the auxiliary bolt 9, as visible in Figure 4, the spindle of coupling 11 is located opposite to the end 15 has slots 15.
  • the auxiliary latch further comprises a spacer tube 21 extending substantially parallel to the axis of rotation 10 and connecting the two flanges 9 a and 9 b through an oblong hole 22 of the bolt 8, the ends of a spindle 21c, contained in the spacer tube 21, being fitted by punching in frustoconical holes 21a and 21b of the flanges 9 and 9b, respectively, in the vicinity of their central portion.
  • the spacer tube 21 has the function of stiffening the auxiliary bolt 9 and to maintain the flanges 9 a and 9 b parallel to each other and to the lateral faces 8a and 8b of the bolt 8 at a distance of said side faces 8a and 8b, especially when the lock is subjected to high temperatures, for example during a fire.
  • the elongated hole 22 comprises two angularly spaced ends, the end 22 a is located inwardly of the housing 1 and the end 22 b being located outwardly of the housing 1.
  • the spacer tube 21 is located in the vicinity of the end 22a of the elongate hole 22.
  • the releasable coupling of the bolt 8 and the auxiliary bolt 9 is achieved by means of a fuse element 20 at low temperature of melting, rigid at the room temperature of use of the lock (see figure 1).
  • the fuse element 20 may for example consist of a plastic material, said low melting temperature being for example of the order of 180 ° C.
  • the fuse element 20 comprises a plastic rod, visible in FIG. 1, housed in the vicinity of the end 22b of the oblong hole 22 and occupying a substantial part of the space complementary to the spacer tube 21 in the oblong hole 22, so as to prevent the angular displacement of the spacer tube 21 relative to the bolt 8.
  • the fuse element comprises two pieces of plastic in the form of washer housed near the ends 15a of the two lights 15, visible in Figure 4, occupying a substantial part of the space complementary to the coupling pin 11 in the lights 15 of to prohibit the angular displacement of the spindle coupling 11 with respect to the auxiliary bolt 9.
  • the bolt 8 and the bolt auxiliary 9 are thus connected in rotation about the axis of rotation 10.
  • the torque is transmitted to the bolt auxiliary 9 through the fuse element 20 which comes into stop on the spacer tube 21 in the first variant of the invention, or the coupling pin 11 which abuts on said element fuse in the second variant of the invention, so that the auxiliary bolt is also driven in the open position of the lock.
  • the elastic return torque of the spring 19 exerting on the auxiliary bolt 9 in the direction of closing the lock is transmitted to the bolt 8 via the spacer tube 21 which comes in abutment on the fuse element 20 housed in the oblong hole 22 in the first variant of the invention, or the fuse element housed in the lights 15 which abuts on the coupling pin 11 in the second variant of the invention, so that the bolt 8 is also driven in the closed position of the lock.
  • the fuse element 20 loses its rigidity as a result of raising the ambient temperature to near its melting temperature. This loss of rigidity occurs before the melting of said bolt 8, before or at the latest at the beginning of the sliding stroke of the bolt 8 on the striker 5 under the effect of the differential pressure exerted on the leaf 2 and / or the expansion of said leaf 2.
  • the fuse element 20 is then no longer able to withstand the force exerted by the spring 19 on the auxiliary bolt 9 in the opening direction thereof.
  • the rotational connection of the auxiliary bolt 9 with the bolt 8 is then removed, the spacer tube being freely angularly displaceable toward the end 22 b of the oblong hole 22 and the coupling pin 11 can slide freely angularly towards the end 15 has 15.
  • the auxiliary bolt 9 then rotates under the effect of the force of the spring 19 of an angle ⁇ beyond its closed position towards its uncoupled position, visible in FIG. 2, the base portion 19 a spring 19 freely engage in the recess 8 f without cooperating with the bolt 8.
  • the ends of the coupling pin 11 remain in abutment against the inner surface of the wing 1 a , on both sides of the opening 4, so that the auxiliary bolt 9 is locked in rotation about the axis 10 in its closing direction, the edges of the end 15 has lights 15 abutting against the spindle mating 11, as visible in Figure 3.
  • the striker 5 is resistant to fire, for example steel or cast iron, and has a hollow boss 23 of substantially rectangular parallelepiped shape with edges rounded for ergonomics, which can be obtained for example by stamping a sheet metal steel, and the base 23a is extended along the short sides by two fastening flanges 24 to be applied on a striker carrier 25 so that the long side of the base 23a parallel to the axis of rotation 10; the support 25 being fixed either to the frame of a single door or to the second leaf 6 of a double door.
  • the anchoring legs 24 have holes 24a for receiving mounting bolts (not shown) for securing the striker 5 to the support 25.
  • 5 surface portion a of the keeper 5 faces the bolt 3 in closed position of the door and is rounded with a larger radius of curvature than the other edges of the striker 5 to ensure sufficient contact surface with the bolt 8 in the closed position of the lock.
  • 5 the surface of a portion comprises two grooves 26 extending perpendicularly to the axis 10 and situated respectively opposite the edges 17 of the flanges 9 and 9b of the auxiliary latch 9, so that the edges 17 do not fit not in contact with the keeper 5 when the lock operates with the two bolts 8 and 9 coupled (see Figure 1).
  • the auxiliary bolt 9 When, when the door is initially closed, the auxiliary bolt 9 is brought into its decoupled position (see FIG. 2) following the melting of the fuse element 20, for example due to a fire, if the leaf 2 of the door is pushed in the direction of its opening under the effect of the pressure differential which is exerted on its faces and / or its expansion, the bolt 8 can slide on the striker 5, for example because of the low coefficient of friction Zamak® on the steel, without causing the bolt 9.
  • This sliding of the bolt 8 is due to the fact that the force exerted by the striker 5 on the bolt 8 in response to the pressure force exerted perpendicularly on the leaf 2 and transmitted to the bolt 8 via the axis 10, may comprise a component whose moment relative to the axis of rotation 10 tends to bring the bolt 8 into the housing 1.
  • the leaf 2 is curved or turns a small angle on the axis of its hinges (not shown) in its opening irection, so that the center point of the leaf 2 which carries the housing 1 has a shift d in the opening direction of the door relative to the leaf 6 carrying the striker 5.
  • the edges 17 of the flanges 9 and 9b of the auxiliary latch 9 come into contact with the bottom of the grooves 26 of the striker 5.
  • the auxiliary 9 and the bolt keeper 5 being resistant material fire, for example steel, and the coefficient of friction of the steel on itself is higher, the blocking of the door in substantially closed position, called fire closing position, is then ensured, even after complete melting of the bolt 8 , as can be seen in FIG. 3. Since the ambient temperature has greatly exceeded 200 ° C. when this occurs, the lock is no longer intended to be opened using the actuator at this stage.
  • the coupling pin 11 can be driven by the bolt 8 and lose contact with the casing 1; but is subsequently pushed into abutment against the flange 1a by the auxiliary bolt 9.
  • the edges 17 of the flanges 9 and 9b have notches 27 designed to be hooked on the front flange 26 has grooves 26 during the movement of the case 1 in the opening direction the door, said notches 27 facing said front flange 26 has grooves 26 when the auxiliary bolt is in the uncoupled position, as shown in Figure 2.
  • the flanges 9 a and 9 b are hooked on the end flanges 26 has grooves 26 of the striker 5, so as to prevent slippage of the auxiliary bolt 9 on the latch 5.
  • the leaf 2 of the door on which is mounted the lock comprises an intumescent gasket 28 inserted into a housing dug all the height of said leaf 2 substantially in the middle of its edge 2a.
  • this intumescent gasket expands so as to obstruct the day 29 which exists between the two leaves 2 and 6 of a double door or between a door and the frame, in order to make the door more hermetic, as shown in Figure 2.
  • the phase shift of the auxiliary bolt 9 is such that the offset d presented by the leaf midpoint 2 on which is mounted the housing 1 of the lock is substantially less than half the thickness, the second leaf 6 in the case of a double door, or the door frame in the case of a single door (not shown), so that the intumescent seal 28 inflated comes into contact with the edge 6a of the second leaf 6 in the case of a double door or the door frame in the case of a single door, so as to maintain the function of fireproof of the door.

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Claims (14)

  1. Schloss mit einem Gehäuse (1) aus einem Material mit hoher Schmelztemperatur, welches an einer Türe (2) befestigbar ist, einem Riegel (8) aus einem Material, dessen Schmelztemperatur niedriger ist, wobei der Riegel (8) an dem Gehäuse (1) so montiert ist, dass er zwischen einer Verschlussposition, in welcher er aus dem Gehäuse (1) durch eine Öffnung (4) in diesem nach außen herausragt und, bei der bei Benutzung des Schlosses herrschenden Umgebungstemperatur, mit einer Schließkappe (5) zum Blockieren der Tür in der verschlossenen Position zusammenwirken kann, und einer Öffnungsposition, in welcher der Riegel (8) in das Gehäuse (1) zurückgezogen ist, um das Öffnen der Tür zu ermöglichen, beweglich ist, einem Betätigungsmittel, das mit dem Riegel (8) gekoppelt und von außerhalb des Gehäuses (1) betätigbar ist, um den Riegel (8) von seiner Verschlussposition in seine Öffnungsposition überzuführen, dadurch gekennzeichnet, dass das Schloss außerdem einen Hilfsriegel (9) aus einem Material mit hoher Schmelztemperatur umfasst, der so an dem Gehäuse (1) montiert ist, dass er zwischen einer Verschlussposition, in welcher ein Teil des Hilfsriegels (9) aus dem Gehäuse (1) durch die Öffnung (4) in diesem nach außen ragt, und einer Öffnungsposition, in welcher der Hilfsriegel (9) in das Gehäuse (1) zurückgezogen ist, um das Öffnen der Türe zu ermöglichen, bewegbar ist, wobei das Schloss außerdem elastische Rückstellmittel (19) umfasst, die mit dem Hilfsriegel (9) so zusammenwirken, dass dieser in seine Verschlussposition gedrückt wird, wobei der Hilfsriegel (9) durch Verbindungsmittel (11, 21) so an den Riegel (8) gekoppelt ist, dass eine Verschiebung des Riegels (8) durch das Betätigungsmittel in seine Öffnungsposition auch den Hilfsriegel (9) in dessen Öffnungsposition mitführt, wobei die Verbindungsmittel (11, 21) wenigstens ein schmelzbares Bauteil (20) aus einem Material mit niedriger Schmelztemperatur umfassen, wobei die als Zwischenschmelztemperatur bezeichnete niedrige Schmelztemperatur zwischen der Umgebungstemperatur bei Benutzung des Schlosses und der Schmelztemperatur des Riegels (8) liegt, wobei jedes schmelzbare Bauteil (20) so angeordnet ist, dass sein Schmelzbeginn die Verbindung zwischen dem Riegel (8) und dem Hilfsriegel (9) entkoppelt, so dass nach dem Schmelzen des schmelzbaren Bauteils (20) der Hilfsriegel (9) in seiner entkoppelten Position mit einem Teil mit hoher Schmelztemperatur der Schließkappe (5) zusammenwirken kann, um die Türe in einer im Wesentlichen geschlossenen Position zu blockieren, die als Brandverschlussposition bezeichnet wird.
  2. Schloss gemäß Anspruch 1, dadurch gekennzeichnet, dass der Hilfsriegel (9) in seiner entkoppelten Position bezüglich des Riegels (8) unter dem Einfluss der elastischen Rückstellmittel (19) in eine Brandverschlussposition verschiebbar ist, in welcher er über seine Verschlussposition hinaus aus dem Gehäuse (1) nach außen ragt.
  3. Schloss gemäß Anspruch 2, dadurch gekennzeichnet, dass es ein Drehriegelschloss ist, wobei der Riegel (8) und der Hilfsriegel (9) um dieselbe mit dem Gehäuse (1) verbundene Achse (10) drehbar sind, wobei die Drehachse (10) im Wesentlichen parallel zu der Wand (1a) des Gehäuses (1) verläuft, in welcher die Öffnung (4) ausgespart ist.
  4. Schloss gemäß Anspruch 3, dadurch gekennzeichnet, dass der Riegel (8) einen Körper (30) aufweist, der an seinem freien Ende eine Sperrfläche (8e) aufweist, die in der Verschlussposition des Riegels (8) mit der Schließkappe (5) zusammenwirken kann, wobei der Hilfsriegel (9) zwei ebene Flansche (9a, 9b) mit der Allgemeinform von im Wesentlichen senkrecht zu der Drehachse (10) orientierten Scheibensektoren aufweist, die auf beiden Seiten des Körpers (30) des Riegels (8) angeordnet sind, wobei die Verbindungsmittel (11, 21) wenigstens ein Ankuppelmittel (11, 21) mit hoher Schmelztemperatur aufweisen, das im Wesentlichen parallel zu der Rotationsachse (10) in wenigstens einem Loch (16, 21a) des einen Riegels (8) und des Hilfsriegels (9) und durch wenigstens einen im Wesentlichen kreisbogenförmigen, auf der Drehachse (10) zentrierten, in dem anderen Riegel (8) und dem Hilfsriegel (9) eingebrachten Schlitz (15, 22) verläuft, wobei das schmelzbare Bauteil (20) in dem wenigstens einen Schlitz (15, 22) angebracht ist, um eine Drehverbindung zwischen den beiden Riegeln (8, 9) bei Umgebungstemperatur herzustellen und um die beiden Riegel (8, 9) oberhalb der niedrigen Schmelztemperatur mit einer eingeschränkten Drehbewegungsfreiheit, die dem Kreisbogen des wenigstens einen Schlitzes (15, 22) entspricht, so zu entkoppeln, dass in der Brandverschlussposition des Schlosses der Hilfsriegel (9), der unter der Wirkung der elastischen Rückstellmittel (19) aus dem Gehäuse (1) nach außen gedrückt wird, bezüglich des Riegels (8) um einen Phasenwinkel (α) über seine Verschlussposition gedreht ist, wobei der wenigstens eine Schlitz (15, 22) frei auf dem Ankopplungsmittel (11, 21) verschoben ist.
  5. Schloss gemäß Anspruch 4, dadurch gekennzeichnet, dass eine ins Innere des Gehäuses (1) gerichtete Fläche (8c) des Riegels eine Vertiefung (8f) aufweist, die so angeordnet ist, dass ein Teil (19a) der auf einem Rand der Flansche (9a, 9b) einliegenden elastischen Rückstellmittel (19) im Laufe der Drehbewegung des Hilfsriegels (9) um den Phasenwinkel (α) in seine Brandverschlussposition nicht in Kontakt mit dem Riegel (8) ist, wobei der Teil (19a) der elastischen Rückstellmittel (19) frei in die Vertiefung (8f) eingreifen kann.
  6. Schloss gemäß einem der Ansprüche 4 und 5, dadurch gekennzeichnet, dass die Verbindungsmittel (11, 21) ein Distanzrohr (21) aufweisen, das im Wesentlichen parallel zu der Drehachse (10) verläuft und die beiden Flansche (9a, 9b) des Hilfsriegels (9) miteinander verbindet, wobei die Enden des Distanzrohrs (21) mit den beiden Flanschen (9a, 9b) verbunden sind.
  7. Schloss gemäß Anspruch 6, dadurch gekennzeichnet, dass wenigstens ein Ankoppelmittel das Distanzrohr (21) umfasst, wobei der wenigstens eine Schlitz (22) den Riegel (8) durchquert, wobei das Loch (21a) in jeden der beiden Flansche (9a, 9b) eingestochen ist und das schmelzbare Bauteil (20) bei der bei Benutzung des Schlosses herrschenden Umgebungstemperatur einen Teil (22b) des Langloches (22) so einnehmen kann, dass die Verschiebung des Distanzrohrs (21) in dem Langloch (22) verhindert wird.
  8. Schloss gemäß einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Verbindungsmittel einen Kupplungszapfen (11) aufweisen, der im Wesentlichen parallel zu der Drehachse (10) verläuft und drehbeweglich um die Drehachse (10) mit dem Riegel (8) verbunden ist, wobei ein Ende des Kupplungszapfens gegen das Gehäuse (1) in Anschlag kommen kann, um die Wegbegrenzung des Riegels (8) in der Verschlussposition des Schlosses zu definieren.
  9. Schloss gemäß Anspruch 8, dadurch gekennzeichnet, dass der Kupplungszapfen (11) wenigstens eine Öffnung (15) durchquert, die in jedem der beiden Flansche (9a, 9b) eingebracht ist, sowie ein Loch (16) welches den Riegel (8) durchdringt.
  10. Schloss gemäß Anspruch 9, dadurch gekennzeichnet, dass ein schmelzbares Bauteil bei der bei Benutzung des Schlosses herrschenden Umgebungstemperatur einen Teil der Öffnung (15) so einnehmen kann, dass die Verschiebung des Kupplungszapfens (11) in der Öffnung (15) verhindert wird.
  11. Schloss gemäß einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die hohe Schmelztemperatur mehr als 950°C beträgt, wobei das Material mit hoher Schmelzetemperatur beispielsweise Eisen ist, dass die Zwischenschmetztemperatur im Bereich von 200°C bis 500°C liegt, wobei das Material mit Zwischenschmelztemperatur beispielsweise Zamak® ist, und dass die niedrige Schmelztemperatur weniger als 200°C beträgt, wobei das Material mit niedriger Schmelztemperatur beispielsweise in Kunststoff ist.
  12. Anordnung, die durch ein Schloss gemäß einem der Ansprüche 4 bis 10 und einer dem Schloss zugeordneten Schließkappe gebildet wird, dadurch gekennzeichnet dass die radiale Ausdehnung der Flansche (9a, 9b) des Hilfsriegels (9) bezüglich der Drehachse (10) im Wesentlichen größer als die radiale Ausdehnung der Sperrfläche (8e) des Riegels (8) ist, wobei die Schließkappe (5) zwei im Wesentlichen senkrecht zu der Drehachse (10) verlaufende und den freien Außenkanten (17) der Flansche (9a, 9b) des Hilfsriegels (9) gegenüberliegende Rillen (26) aufweist, wobei die Rillen (26) so angeordnet sind, dass einerseits die Flansche (9a, 9b) bei der bei Benutzung des Schlosses herrschenden Umgebungstemperatur in die Rillen (26) eingreifen, ohne mit der Schließkappe (5) zusammenzuwirken und andererseits die Flansche (9a, 9b) in der Brandverschlussposition des Hilfsriegels (9) in Kontakt mit der Schließkappe (5) kommen können.
  13. Anordnung, die durch ein Schloss und eine Schließkappe gemäß Anspruch 12 gebildet wird, dadurch gekennzeichnet, dass wenigstens einer der Flansche (9a, 9b) des Hilfsriegels (9) in seiner freien Außenkante (17) eine Kerbe (27) aufweist, wobei die Kerbe (27) in der Brandverschlussposition des Schlosses sich in die ihr gegenüberliegende Rille (26) der Schließkappe (5) einhaken kann.
  14. Anordnung gemäß Anspruch 13, bei welcher das Schloss an einem beweglichen Flügel (2) und die Schließkappe an einem zweiten Flügel (6) im Fall einer Doppeltür oder einem Pfosten eines Türrahmens im Fall einer einfachen Tür montiert ist, dadurch gekennzeichnet, dass eine intumiszierende Verbindung (28), die unter Hitzeeinwirkung von einem kontrahierten in einen aufgeblähten Zustand übergehen kann, an der Kante (2a) des beweglichen Flügels (2) auf dessen gesamten Umfang befestigt ist, wobei die Anordnung so ausgebildet ist, dass einerseits in der Verschlussposition bei der bei Benutzung des Schlosses herrschenden Umgebungstemperatur die intumiszierende Verbindung (28) der Kante (6a) des zweiten Flügels (6) oder des Pfostens des Türrahmens gegenüberliegt und die intumiszierende Verbindung (28) kontrahiert ist, während andererseits in der Brandverschlussposition des Hilfsriegels (9) der bewegliche Flügel (2) bezüglich seiner Verschlussposition nicht verschoben ist, während die Kerbe (27) und die ihr gegenübeniegende Rille (26) um einen Versatz (d) voneinander beabstandet sind, wobei der Versatz (d) im Wesentlichen kleiner als die mittlere Dicke des die Schließkappe (5) tragenden Flügels (6) oder des Pfostens des Türrahmens ist, so dass, wenn sich der bewegliche Flügel (2) unter der Einwirkung des durch das Feuer ausgeübten Druckunterschiedes verschiebt, die intumiszierende Verbindung (28) in ihrem aufgeblähten Zustand in Kontakt mit der Kante (6a) des Flügels (6) oder des Pfostens des Türrahmens bleiben kann, die ihr im Wesentlichen über die gesamte Höhe der Kante (6a) oder des Pfostens gegenüberliegt.
EP20010401071 2000-06-07 2001-04-26 Gleit- und brandsicheres Schloss Expired - Lifetime EP1162334B1 (de)

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FR0007268A FR2810065B1 (fr) 2000-06-07 2000-06-07 Serrure anti-glissement resistante au feu et ensemble forme d'une serrure et d'une gache associee
FR0007268 2000-06-07

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CN102619394B (zh) * 2011-01-27 2014-12-17 台湾福兴工业股份有限公司 防火门锁的锁栓结构
CN102619393B (zh) * 2011-01-27 2014-12-17 台湾福兴工业股份有限公司 防火门锁组合构造及其锁栓
ITTO20120194A1 (it) * 2012-03-05 2013-09-06 Mottura Serrature Di Sicurezza Scrocco per serratura, e serratura comprendente tale scrocco
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US11458339B2 (en) * 2019-02-14 2022-10-04 Cho Roon Developing Enterprise Co., Ltd. Hot melt safely door holder device
CN111809983B (zh) * 2020-08-10 2024-10-18 长园共创电力安全技术股份有限公司 一种轴向闭锁机构、锁具及其解闭锁方法

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EP4209648A1 (de) * 2016-11-03 2023-07-12 Schlage Lock Company LLC Sicherheits-/feuerverriegelungsmechanismus mit doppelter funktion für brandschutzvorrichtungen

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