EP1106752A1 - Brandsicheres Schloss - Google Patents

Brandsicheres Schloss Download PDF

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Publication number
EP1106752A1
EP1106752A1 EP00402993A EP00402993A EP1106752A1 EP 1106752 A1 EP1106752 A1 EP 1106752A1 EP 00402993 A EP00402993 A EP 00402993A EP 00402993 A EP00402993 A EP 00402993A EP 1106752 A1 EP1106752 A1 EP 1106752A1
Authority
EP
European Patent Office
Prior art keywords
bolt
auxiliary
housing
auxiliary bolt
lock according
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.)
Granted
Application number
EP00402993A
Other languages
English (en)
French (fr)
Other versions
EP1106752B1 (de
Inventor
Pascal Magnain
Christian Darmanin
Robert Mangin
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
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 Vachette SA filed Critical Vachette SA
Publication of EP1106752A1 publication Critical patent/EP1106752A1/de
Application granted granted Critical
Publication of EP1106752B1 publication Critical patent/EP1106752B1/de
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
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0075—Insulating, e.g. for limiting heat transfer; Increasing fire-resistance of locks
    • 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
    • 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
    • E05B65/1046—Panic bars
    • E05B65/106—Panic bars pivoting
    • E05B65/1066—Panic bars pivoting the pivot axis being substantially parallel to the longitudinal axis of the bar
    • 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
    • E05B65/1006—Locks or fastenings for special use for panic or emergency doors of the vertical rod type

Definitions

  • the present invention relates to a lock of the type comprising a housing intended to be fixed to a door, a bolt in one material with low melting point, which is mounted in the housing so as to be movable between a closed position in which the bolt does protrudes outside the housing through an opening therein and may cooperate with a keeper to lock the door in the closed position, and an open position in which the bolt has returned to the housing to authorize the opening of the door, a spring coupled to the bolt for the bias towards its closed position, and at least one maneuver coupled to the bolt and operable from outside the housing to move the latch from its closed position to its position opening hours.
  • the bolt In many known locks, in particular in anti-panic locks of the tilting bolt type, the bolt has a shape relatively complex (see for example Figure 4 of patent FR-2 650 619). If such a bolt must be made of steel or an alloy copper, it must then be manufactured either by machining, or not molding in shell, or again by molding with lost wax. These processes of manufacturing takes a long time to implement either in themselves or because of the additional finishing operations they require, and the bolts obtained by these methods are relatively expensive.
  • the bolts made of a material with a low point fusion by injection molding technique are unable to resist fire.
  • a lock in particular his bolt, be able to resist fire in particular, but not exclusively, when the lock is installed on a fire door. Indeed, it is desirable that, in the event of a fire, the door can remain securely closed and do not open unexpectedly in order to avoid the creation of drafts which could fan the fire or promote its spread.
  • the present invention therefore aims to provide a lock of the type defined above, the bolt of which is made of a material with a low point of but capable of keeping the door closed in the event even after melting the bolt in low point material fusion.
  • the invention provides a lock of the type defined in preamble, characterized in that it further comprises a bolt auxiliary in fire-resistant material, which is coupled to said bolt in low melting point material so that the two bolts are movable together in the same direction under the action of said spring and under the action of said operating member, by the fact that, in the position of closing the bolt in low melting point, the auxiliary bolt occupies a closed position in which it is also able to cooperate with said keeper, and by the fact that said spring acts at least on the auxiliary bolt so as to keep it in its position closing in the event of a bolt melting in low melting point material.
  • the two bolts can be pivotally mounted on a common pivot axis, which extends parallel to a wall of the housing in which said said is formed opening, near an edge of this opening.
  • the auxiliary bolt can consist of two flat flanges in the form of a sector of a circle, which are perpendicular to the common pivot axis and spaced from each other, and which have each an edge in an arc centered on said common axis of pivoting and intended to cooperate with the keeper in the closed position auxiliary bolt;
  • the bolt in low melting point material is arranged between the two flanges of the auxiliary bolt and has a surface of blocking in the shape of a cylinder portion whose geometric axis is confused with that of the common pivot axis;
  • the two bolts are coupled to each other by said common pivot axis and by a spindle which is parallel to the common pivot axis and which passes in a series of aligned holes formed in the two flanges of the bolt auxiliary and in the bolt in low melting point material.
  • said pin has projecting ends beyond the flanges of the auxiliary bolt, to serve as a stop for angular travel for the two bolts by cooperating with said wall of the housing when the two bolts are in their position closing.
  • each of the two flanges of the auxiliary bolt is serrated.
  • the serrated edge of each of the two flanges of the the auxiliary bolt is preferably slightly set back from the cylindrical locking surface of the bolt in low point material fusion, so as to come into contact with the strike only after melting of the bolt in low melting point material. This prevents the teeth or notches of the serrated edge of the flanges of the auxiliary bolt do not interfere with the normal operation of the bolt in low point fusion when it slides on the strike.
  • each of the two flanges of the auxiliary bolt has two edges which extend substantially radially with respect to the axis pivot joint, a first of the two radial edges being in permanently inside the lock case, while a second of the two radial edges extends mainly outside said housing, obliquely through the opening of it, when the two bolts are in their closed position, and said spring is a helical spring of torsion which is mounted on the common pivot axis and which comprises a branch bearing against said wall of the housing, and another branch which rests on the first radial edge of minus one of the two flanges of the auxiliary bolt.
  • the auxiliary bolt may also include a spacer plate which is connected in one piece to the second radial edge of each of the two flanges of the auxiliary bolt and which covers partially the bolt in low melting point material.
  • the keeper acts on said spacer plate to cause the rearming of the two bolts.
  • this spacer plate is, like the rest of the bolt auxiliary, in a material more resistant to wear than the bolt in material with a low melting point, this avoids faster wear which would happen if the striker acted, as in a conventional lock, on the bolt in low melting point material.
  • the auxiliary bolt is obtained by cutting and bending of a sheet of fire-resistant metal, for example steel.
  • the auxiliary bolt can be manufactured at a low cost and this cost, added to that of the bolt in terms of low melting point, remains lower than that of a single bolt made entirely of steel or of a copper alloy manufactured by machining, by shell molding or by lost wax molding.
  • the bolt in low melting point material can be mounted to pivot around a pivot axis, while the auxiliary bolt can be arranged to be movable in translation in a direction orthogonal to said axis pivot.
  • the housing may include a metal sheet bent in a U so as to present two wings and a base part, said opening of the housing being substantially rectangular and formed in a first of the two wings of the sheet bent into a U, said pivot axis extending parallel to said first wing near that of the edges of said opening which is furthest from the base part of the sheet bent in U.
  • the auxiliary bolt can be slidably mounted on at least one rod guide extending between the two wings of the U-folded sheet, near the basic part of it.
  • the auxiliary bolt can then be constituted by a body which has a section longitudinal substantially in the shape of a rectangular trapezoid, with a small base facing the base part of the sheet bent into a U, a first right transverse side, which is parallel and faces the second wing of the sheet bent into a U, a second oblique transverse side, which is intended to cooperate with said keeper in the closed position of the bolt auxiliary, and two longitudinal sides on each of which is formed, near said first transverse side, a protuberance which is pierced a through hole for an auxiliary bolt guide rod and which acts as a travel stop for the auxiliary bolt by cooperating with said first wing of the sheet bent into a U when the two bolts are in their closed position.
  • said spring is a helical spring which takes support, by one end, against said second wing and, by its other end, against the bottom of a blind hole in the middle of said first transverse side of the body of the auxiliary bolt.
  • the bolt in low point material can be formed by a hollow body with two flanges dishes in the shape of a sector of a circle each having an arcuate edge of circle and two edges extending substantially radially with respect to the pivot axis, and a substantially planar front wall which is connected in one piece to one of the radial edges of each of the two flanges and which extends mainly out of the housing, obliquely to through the opening of it, when the two bolts are in their closed position, the two flanges framing the sides longitudinal of the body of the auxiliary bolt and each comprising, in their edge in an arc, a notch cooperating with a tooth formed on one of the two protrusions so as to couple the two bolts to each other.
  • the auxiliary bolt may consist of a piece of cut sheet metal and folded in a U so as to present two wings and a base part, the base part of the auxiliary bolt being adjacent and parallel to the part base of the sheet folded into a U of the case, and the two wings of the bolt auxiliary being arranged perpendicular to the two wings of the sheet folded in U of the case.
  • the auxiliary bolt may include an eyelet which is cut in its basic part and folded at right angles between its two wings, the guide rod passes through said eyelet, and the spring is a helical spring arranged around the guide rod between the eyelet and the second sheet metal wing folded in U of the case.
  • each of the two wings of the auxiliary bolt has, on one edge, a part protruding substantially triangular in shape, which protrudes out of the case through the opening thereof in the closed position of the bolt, and the bolt of low melting point material is disposed between the two wings of the auxiliary bolt and their triangular projecting parts, and present in each of its two sides turned respectively towards the wings of the auxiliary bolt an oblong recess in which engages a male coupling element integral with the corresponding wing of the bolt auxiliary.
  • Said male coupling element can then be formed by a nipple or a puncture formed by stamping in each of the wings of the auxiliary bolt, or it may consist of a spacer rod connecting the wings of the auxiliary bolt and, in this second case, said oblong recess can be formed by a light passing through the body of the bolt in low melting point material.
  • each wing of the auxiliary bolt has an edge which extends parallel to the guide rod and which is in sliding contact with the pivot axis, transverse thereto, and which has a lug acting as a travel stop to define, in cooperation with the pivot axis, the closed position of the bolt auxiliary.
  • the lock can further include a trainer which is guided in translation in the housing in a direction orthogonal to said pivot axis and which is coupled to one end of said operating rod by a coupling having a degree of freedom in one of the two directions longitudinal displacement of said operating rod, and the bolt auxiliary is integral with said coach.
  • said coach can consist of a sheet metal part cut and bent into a U so that present two wings and a base part, the bolt in bottom material melting point is formed by a hollow body disposed between the two wings of the coach and comprising two flat flanges in the form of circle sector, which each have an arcuate edge and two edges extending substantially radially with respect to the pivot axis, and a substantially planar wall which is connected in one piece to one of the radial edges of each of the two flanges and which extends in major part out of the housing, obliquely through the opening thereof, when the two bolts are in their closed position, and each flange of the bolt in low melting point material, in its edge in an arc, a notch in which a nipple engages attached to a corresponding adjacent wing of the coach.
  • the bolt auxiliary can be constituted by a body which has a section longitudinal substantially in the shape of a rectangular trapezoid, which is arranged between the two flanges of the bolt in low melting point material and which is attached by its small base to the base part of the coach to which it is rigidly attached.
  • the auxiliary bolt can be formed by an extension of the base part of the coach, which is folded so as to extend obliquely with respect to said part basic.
  • the operating rod which is coupled to the coach is provided with a head which has a larger diameter than that of said rod, and which hooks behind a coupling part in form of fork with two branches, which is formed in one piece with the base part of the coach and extends at right angles to this
  • the spring is a coil spring which is arranged around the operating rod and which bears at one end against a stop which is fixed to the operating rod at a distance from said head, and by its other end against said coupling part in the form of fork, on the side opposite to that on which said head is hooked.
  • FIGS. 1 to 6 A first embodiment of the invention will now be described with reference to FIGS. 1 to 6 in connection with a panic lock, of the tilting bolt type, conventionally comprising a actuator bar (not shown) with both ends fixed respectively to two levers 1 (only one of the two levers is partially shown in Figures 1 to 4) which are pivotally mounted around two axes 2 axially aligned (only one of the two axes 2 is shown in Figures 1 to 4).
  • Each axis 2 is mounted in a respective housing 3 intended to be fixed on one of the faces of a door (not shown) on which the panic lock must be mounted.
  • One of the two levers 1 is an operating lever cooperating with elements contained in the housing 3 with which it is associated to actuate the bolt 4 of the lock from a closed position shown in the Figure 2, in which the bolt 4 projects outside the housing 3 to through an opening 5 thereof and can cooperate with a keeper 6, attached to the door frame (not shown) to maintain said door in the closed position, in an open position (not shown) in which the bolt 4 has returned inside the housing 3.
  • the housing 3 can be constituted, in a conventional manner, by a metal sheet 7, for example of steel, which is folded in a U so as to present two wings 7 a and 7 b and a part basic 7 tsp .
  • This base part 7 c is intended to be applied and fixed, for example by means of screws not shown, on one of the two faces of the door on which the panic lock is intended to be mounted.
  • the housing 3 can optionally be completed by a cover (not shown) covering the space between the two wings 7 a and 7 b and having an opening through which the operating lever 1 passes.
  • the aforementioned opening 5 is cut out in the wing 7 a of the sheet metal 7 in a U, substantially halfway along said wing 7 a , and it has an approximately rectangular shape as shown in FIGS. 1 and 3.
  • the axis pivoting 2 of the operating lever 1 is constituted by a cylindrical rod which extends perpendicularly between the two wings 7 a and 7 b , at a distance from the base part 7 c in the transverse median plane 8 of the housing 3, which is also a plane of symmetry for the opening 5.
  • the ends of the rod 2 are supported in holes formed in the wings 7 a and 7 b , the hole in the wing 7 a being located just above the upper edge 5 has opening 5, as can be seen in Figures 1 and 3.
  • the bolt 4 is in fact consisting of two bolts 9 and 11 which are pivotally mounted on an axis swivel joint 12 and which are coupled to one another by a spindle 13 so as to be able to pivot together around the axis 12.
  • the axis 12 is supported at its ends by support tabs (not shown) which are rigidly fixed to the internal face of the wing 7 a of the sheet 7 folded in a U shape.
  • the bolt 9 is produced for example by molding by injection, in a material with a low melting point, for example in "Zamak" or a charged plastic material. With a few details, the bolt 9 has a shape similar to that of the bolt shown in the Figure 4 of FR-89 10416. However, unlike the bolt known described in this French patent, the bolt 9 of the lock according to the invention does not include support parts which, if they existed, would allow the bolt 9 to be actuated by the bit of a barrel of maneuver, because here such a barrel is not provided. It goes without saying, however that the bolt 9 of the lock according to the invention could include support parts similar to those of the bolt described in the patent French above, if you want it to be activated by the bit an operating cylinder.
  • the bolt 9 is constituted by a body having two lateral faces 9 a and 9 b , which are plane and perpendicular to the pivot axis 12 and which have a substantially triangular shape, one side of which is in shape of an arc of a circle centered on the pivot axis 12.
  • the body forming the bolt 9 also comprises a rear surface 9 c , which is permanently located inside the housing 3, a front surface 9 d which s 'extends mainly out of the housing 3, obliquely through the opening 5 thereof, when the bolt 9 is in its closed position (Figure 2), and a blocking surface 9 e in the form of a portion cylinder, whose geometric axis coincides with that of the pivot axis 12. In the closed position of the bolt, this locking surface 9 e cooperates with the keeper 6 ( Figure 2) to keep the door in the closed position on which the lock is fixed.
  • the bolt 9 is, moreover, extended substantially at its pivot axis 12, by a bearing surface 14 comprising two branches 14 a and 14 b extending respectively on either side of the walls 9 a and 9 b of the bolt 9.
  • this operating lever can act, by means of a pin 15 ( Figure 2) on one or the other of the two branches 14 a , 14 b of the bearing surface 14 to rotate the bolt 9, and also the bolt 11 which is coupled to it, about the axis 12 in order to pass the two bolts from their closed position shown in Figure 2 in their open position (not shown) in which the two bolts have returned to the housing 3.
  • the front face 9 d of the bolt 9 is located substantially in the plane of the opening 5 of the housing 3.
  • the bolt 11 is an auxiliary bolt which is produced, in accordance with the present invention, in a fire-resistant material, for example steel or a copper alloy.
  • this bolt 11 can be constituted by two flat flanges 11 a and 11 b , substantially in the form of a sector of a circle, which are perpendicular to the pivot axis 12 and spaced from one another .
  • the two flanges 11 a and 11 b are intended to be placed respectively on either side of the triangular faces 9 a and 9 b of the bolt 9, as shown in FIG. 6.
  • Each of the two flanges 11 a and 11 b has a first hole 16 intended to be aligned with holes 17 of the bolt 9 to receive the pivot pin 12, as well as a second hole 18 intended to be aligned with a hole 19 of the bolt 9 to receive the coupling pin 13, as can also be seen in figure 6.
  • Each of the two flanges 11 a and 11 b has an edge 21, which extends in an arc centered on the pivot axis 12, each edge 21 is preferably serrated and located slightly behind the cylindrical surface 9 e for locking the bolt 9, as can be seen in FIGS. 2 and 6.
  • Each of the two flanges 11 a and 11 b also has two edges which extend substantially radially with respect to the pivot axis 12, with namely a rear radial edge, which is aligned with the rear surface 9 c of the bolt 9, and a front radial edge which is aligned with the front surface 9 d of the bolt 9.
  • the auxiliary bolt 11 further comprises a spacer plate 11 c , which is connected in one piece to the front radial edge of each of the two flanges 11 a and 11 b .
  • this spacer plate 11 c largely covers the front surface 9 d of the bolt 9.
  • this front surface 9d has a recess 22, wide and shallow (its depth corresponds to the thickness of the spacer plate 11 c ), which extends from one side 9 a to the other side 9 b of the bolt 9 and which, in the assembled state of the two bolts 9 and 11, receives the spacer plate 11 c of the bolt 11, so that this spacer plate is located substantially flush with the front surface 9 d of the bolt 9.
  • the pivot axis 12 has ends which protrude clearly beyond the two flanges 11 a and 11 b of the bolt 11 in order to allow the mounting of said axis in the support legs mentioned upper.
  • the projecting ends of the pivot axis 12 carry a spring 23 intended to urge the two bolts 9 and 11 towards their closed position ( Figure 2).
  • the spring 23 may for example be constituted by a spring steel wire, which is bent in the shape of a U, the base part 23 a of which rests against the rear edge of the two flanges 11 a and 11 b of the bolt 11 and against the rear surface 9 c of the bolt 9, while each of the two branches 23 b and 23 c of the spring 23 extends substantially at right angles from the base part 23 a , then is wound a few turns around a respective end of the pivot axis 12 and then extends again substantially perpendicular to the base portion 23 a by pressing against the inner face of the wing 7 a of the sheet 7 folded in a U case 3.
  • the coupling pin 13 although it is shorter than the pivot axis 12, also has ends which protrude beyond the flanges 11 a and 11 b of the auxiliary bolt 11, so as to abut against the internal surface of the wing 7 a , on both sides of the opening 5, when the two bolts 9 and 11 are in their closed position (FIG. 2).
  • FIGs 7 to 11 show a second embodiment of the present invention, in which elements which are identical or which play the same role as those of the first embodiment shown in Figures 1 to 6, are designated by the same numbers references increased by the number 100 and will not be described in new in detail. In the following description, we will endeavor above all to describe the peculiarities of the second embodiment of the lock.
  • the auxiliary bolt 111 is here constituted by a body which has a longitudinal section substantially in the shape of a rectangular trapezoid, with a small base 111 d which is parallel and faces the base part 107 c of the sheet 107 folded in a U, a large base 111 e , which faces the pivot axis 112, a first straight transverse side or rear side 111 f , which is parallel and faces the wing 107 b of said sheet 107, and a second oblique transverse side or front side 111 g , which is intended to cooperate with the keeper 6 in the closed position of the auxiliary bolt 111 ( Figures 8a, 9 and 10).
  • a protrusion 124 a or 124b is formed on both sides longitudinal 111a and 111b of the auxiliary bolt 111, near its rear side 111 f.
  • Each of the two protrusions 124 a and 124 b is pierced with a hole 125 a or 125 b for a guide rod 126 a or 126 b , which extends perpendicular to the two wings 107 a and 107 b of the sheet 107 folded in U, and the ends of which are fixed respectively to said wings 107 a and 107 b as shown in FIG. 9.
  • the spring 123 which biases the two bolts 109 and 111 towards their closed position is here constituted by a helical spring which acts only on the auxiliary bolt 111 by bearing, at one end, against the wing 107 b of the sheet 107 and , by its other end, against the bottom of a blind hole 127 arranged in the rear side 111 f of the auxiliary bolt 111, as shown in FIG. 10.
  • the auxiliary bolt 111 slides on the two guide rods 126 a and 126 b and its two protrusions 124 a and 124 b abut against the internal face of the wing 107 a of the sheet 107, on each side of the opening 105, when the bolt 111 is in its closed position.
  • the protrusions 124 a and 124 b therefore act as a travel stop for the bolt 111 in cooperation with the wing 107 a of the sheet 107.
  • the bolt 109 made of material with a low melting point is formed by a hollow body which comprises two flat flanges 109 a and 109 b in the form of a sector of a circle, and a front wall 109 d substantially plane.
  • Each of the two flanges 109 a and 109 b has a hole 117 for receiving the pivot axis 112.
  • each of the two flanges 109 a and 109 b has a edge in an arc of a circle, which is centered on the pivot axis 112, and two edges which extend substantially radially with respect to the axis 112.
  • the front wall 109 d of the bolt 109 is connected in one piece to one of the two radial edges of each of the two flanges 109 a and 109 b and it extends mainly out of the housing 103, obliquely through the opening 105 thereof when the bolt 109 is in its position closure, as seen in particular in FIG. 10.
  • a notch 113 a or 113 b (FIG. 11), which cooperates respectively with a tooth 113 c or with a tooth 113 d , these two teeth being respectively formed on the protrusions 124 a and 124 b (see also FIGS. 8 a and 8 b ).
  • the fingers 113 c and 113 d act on one edge of the notches 113 a and 113 b to rotate the bolt 109 in the direction of clockwise around axis 112, towards its closed position.
  • the pin 115 of the operating lever 101 acts on the bearing surface 114 of the bolt 109 or when, when the door is closed, the keeper 106 acts on the oblique front surface 109 d of the bolt 109 to do so enter the inside of the housing 103 by rotating it anticlockwise, one of the two edges of the notches 113 a and 113 b acts on the teeth 113 c and 113 d of the auxiliary bolt 111 for also force him to enter the housing 103 against the return force of the spring 123.
  • the bearing surface 114 is here constituted by a cross member which connects the two flanges 109 a and 109 b of the bolt 109 to each other.
  • the cross member forming the bearing support 114 has, in its upper part, substantially in the middle of its length, a notch 128 in which the pivot axis 102 of the operating lever 101 can engage when the bolt 109 is moved to its open position ( Figure 8b), so as not to hinder the movement of the bolt 109 towards its open position.
  • each of the two flanges 109 a and 109 b of the bolt 109 could be dimensioned so that their edge in an arc comes into abutment against the keeper 106 when the two bolts 109 and 111 are in their closed position.
  • the auxiliary bolt 111 which is made of a fire-resistant material, remains supported against the striker 106 by the spring 123, so that the door is kept closed.
  • FIGS. 12 to 15 elements that are identical or that play the same role as in the first or second embodiment are designated by the same unit and tens digits, plus the number 200, and they don't will not be described again in detail.
  • the auxiliary bolt 211 which is movable in translation in a direction orthogonal to the pivot axis 212 of the bolt 209 like the bolt 111 of the second embodiment, is here constituted by a part made of sheet metal cut and folded into a U so as to present two wings 211 a and 211 b and a base part 211 d .
  • the base part 211 d is arranged parallel and in the immediate vicinity of the base part 207 c of the sheet metal 207 folded in a U of the housing 203, and the two wings 211 a and 211 b of the auxiliary bolt 211 are arranged perpendicular to the two wings 207 a and 207 b of said sheet 207.
  • the auxiliary bolt 211 is here guided by a single guide rod 226, which is located in the transverse median plane of the housing 203, which is also the plane of symmetry of the opening 205 of said housing.
  • the single guide rod 226 is supported at its ends by the two wings 207 a and 207 b of the sheet 207, as shown in FIGS. 12 to 14.
  • the guide rod 226 passes through an eyelet 229 which is cut in the base part 211 d of the auxiliary bolt 211 and folded at a right angle between the two wings 211 a and 211 b of said auxiliary bolt, as shown in FIG. 15.
  • the spring 223 which biases the auxiliary bolt 211 towards its closed position ( Figures 12 and 14) is further constituted by a helical spring, but here it is arranged around the guide rod 226 in such a way that one of its ends bears against eyelet 229, while its other end bears against the face internal of wing 207b of sheet 207, as can be seen in particular in figure 14.
  • Each of the two wings 211 a and 211 b of the auxiliary bolt 211 comprises, on one of its two edges which are perpendicular to the base part 211 d , a projecting part 231 a or 231 b , respectively, of substantially triangular shape, which protrudes from the housing 203 through the opening 205 thereof in the closed position of the auxiliary bolt 211, as shown in FIG. 14.
  • the side 221 a or 221 b which faces the keeper 206, of each of the two triangular parts 231 a and 231 b , can have an arc shape and be serrated like the edge 21 of each of the two flanges 11 a and 11 b of the auxiliary bolt 11 of the first embodiment of the invention .
  • the bolt 209 made of material with a low melting point is disposed between the two wings 211 a and 211 b of the auxiliary bolt 211 and their projecting triangular parts 231 a and 231 b .
  • the bolt 209 can be constituted by a hollow body having a structure and a shape very similar to that of the bolt 109 of the second embodiment of the invention, but it can also be constituted by a solid body having an external profile similar to that of said hollow body.
  • the bolt 209 of the third embodiment of the invention comprises, in each of its two sides or lateral flanges 209 a and 209 b turned respectively towards the wings 211 a and 211 b of the auxiliary bolt 211, an oblong recess 213 a or 213 b in which engages a male coupling element 213 c or 213 d secured to the corresponding wing 211 a or 211 b of the auxiliary bolt 211.
  • Each of the two recesses 213 a and 213 b can be formed by a notch or, as shown in FIG.
  • the two male coupling elements 213 c and 213 d may consist of pins or punctures formed by stamping in each of the two wings 211 a and 211 b of the auxiliary bolt 211.
  • each of the two oblong recesses 213 a and 213 b is constituted by an oblong opening formed in the corresponding flange 209 a or 209 b of the bolt 209, while the male coupling element consists of a spacer rod 213 e which connects the two wings 211 a and 211 b of the auxiliary bolt 211 passing successively through a hole 213 g of the wing 211 a , the two slots 213 a and 213 b of the bolt 209 and a hole 213 h from wing 211b.
  • each of the two wings 211 a and 211 b of the auxiliary bolt 211 has an edge 232 a or 232 b which extends parallel to the guide rod 226 and which is in sliding contact with the pivot axis 212, transverse thereto.
  • Each of the two edges 232 a and 232 b has a lug 233 which acts as a travel stop to define, in cooperation with the pivot axis 212, the closed position of the auxiliary bolt 211 as can be seen in FIG. 14 .
  • FIG. 17 and 18 the elements of the lock which are identical or which play the same role as those of the embodiments described above are designated by the same numbers of units and tens, augmented by the number 300.
  • the lock shown in Figures 17 and 18 is more particularly intended to be fixed in the upper part or low of a door.
  • the lock can be part of a system of closing at several closing points, for example at three points closure, comprising a first lock housing intended to be fixed halfway up a door and two other boxes intended to be fixed respectively at the top and bottom of the door.
  • Each of these two last boxes can for example be constituted by a box like the housing 303 shown in Figures 17 and 18, which contains, of conventionally, a tilting bolt 309 which can be actuated by means of a driver 334 itself coupled to an operating rod 301 kinematically connected to the mechanism (not shown) of the housing lock which is fixed halfway up the door.
  • the housing 303 is fixed on a door in such a way that the operating rod 301 extends vertically and that it is vertically movable under the action of the above mechanism, which can be carried out in a conventional manner and, for this reason, will not be described insofar as it is not part of the invention and is not necessary for its understanding.
  • the pivot axis 312 of the tilting bolt 309 is supported, at its ends, by the two wings of the sheet 307 bent in a U (only the wing 307 b of the sheet 307 can be seen in Figures 17 and 18).
  • the opening 305 of the housing 303, through which the two bolts 309 and 311 protrude when they are in their open position, is not formed in one of the two wings of the sheet 307, but in the end wall 335 a of the cover 335 of the housing 303.
  • the bolt 309 in low melting point material may have a structure and shape similar to that of the bolt 109 of Figure 11 or to those of bolt 209 in figure 15 or figure 16, except that the bolt 309 does not have a bearing surface like the bearing support 114 or 214 of the bolt 109 or 209.
  • the driver 334 is movable in translation in the housing 303 in a direction orthogonal to the pivot axis 312, that is to say perpendicular to the end wall 335 a of the cover 335 of said housing, and it is coupled to the operating rod 301 by a coupling 336 which has a degree of freedom in one of the two longitudinal directions of movement of said operating rod 301, as will be seen in detail below.
  • the auxiliary bolt 311 made of a fire-resistant material is integral with the driver 334.
  • the coach 334 can consist of a sheet metal part, for example of steel, cut and folded into a U, so as to present two wings 334 a and 334 b and a part basic 334 c .
  • the U-profile of the trainer 334 is dimensioned so that, in service, the two wings 334 a and 334 b of the trainer 334 are in sliding contact with the two wings of the sheet 307 folded in a U-shape of the case, respectively.
  • the base part 334 c of the coach 334 is in sliding contact with the base part 307 c of said sheet 307.
  • the coach 334 is guided in its movements by two guide pins 337 (a only one of these two pins 337 is visible in FIGS. 17 and 18) which are respectively integral with the internal faces of the two wings of the sheet 307 and which cooperate respectively with oblong slots 338 a and 338 b , which are formed respectively in the wings 334 a and 334 b of the coach 334 and which extend parallel to the part 334 c thereof.
  • the trainer 334 is kinematically connected to the bolt 309 by two pins 313 c and 313 d , which are respectively integral with the internal faces of the wings 334 a and 334 b of the trainer 334 and which engage respectively in oblong recesses, by example of the notches, such as the notch 313 b , which are formed respectively in the two flanges in the form of a sector of a circle of the bolt 309, such as for example the flange 309 b , the two flanges of the bolt 309 being respectively in sliding contact with the internal faces of the two wings 334 a and 334 b of the trainer 334.
  • Each of the two wings 334 a and 334 b of the coach 334 further comprises, as can be seen in FIG. 19, a lug 333 which acts as a travel stop to define the closed position of the two bolts 309 and 311 , in cooperation with the pivot axis 312 of the bolt 309.
  • the auxiliary bolt 311 made of a material resistant to fire, such as for example steel or a copper alloy, can for example be constituted by a solid body which has a longitudinal section substantially in the shape of a rectangular trapezoid, as shown in the figures 17 and 18.
  • the body forming the auxiliary bolt 311 is attached by its small base to the base part 334 c of the coach 334 to which it is rigidly fixed, for example by two countersunk screws (not shown) passing through through holes formed in said base part 334 c and screwed into tapped holes provided in the bolt 311.
  • the bolt 311 is fixed to the base part 334 c in such a way that its oblique surface 311 e cooperates with the keeper 306 for keep the door closed when the two bolts 309 and 311 are in their closed position.
  • the bolt 311 has a width smaller than the distance between the two wings 334 a and 334 b of the coach 334, and it is fixed to the base part 334 c of said coach so that a space is provided between each longitudinal sides 311 a and 311 b of the bolt 311 and the corresponding adjacent wing 334 a or 334 b of the coach 334, each space thus formed having a width slightly greater than the thickness of one of the two flanges, such as the flange 309 b , of the bolt 309.
  • the auxiliary bolt 311 is constituted by an extension 334 d of the base part 334 c of the driver 334.
  • This extension 334 d is folded so as to extend obliquely relative to to the base part 334 c in the direction of the flat wall 309 d of the bolt 309.
  • the coupling 336 between the operating rod 301 and the driver 334 can be produced in the following manner.
  • the end of the operating rod 301 is provided with a head 339 which has a larger diameter than that of the rod 301 and which hooks behind a coupling part 334 e , in the form of a fork with two branches, which is formed integrally with the base part 334 c of the coach 334 and extends at right angles to said base part.
  • the spring 323, which serves to urge the two bolts 309 and 311 towards their closed position, is here incorporated in the coupling 336.
  • the spring 323 is here constituted by a helical spring which surrounds the operating rod 301 and which bears at one end against a stop 341 which is fixed to the rod 301 at a distance from the head 339, and by its other end against the coupling part 334 e , preferably by means of a washer 342, on the side of the part 334 th opposite to that on which the head 339 is hooked.
  • the head 339 can be formed at one of the ends of a cylindrical dowel 343, which is engaged axially in the operating rod 301, and the stop 341 may be constituted by a pin which crosses transversely the operating rod 301 and the cylindrical pin 343 to hold the latter in the operating rod.
  • the keeper 306 acts on the oblique wall 309 d of the bolt 309 to force it to enter the housing 303 as shown in Figure 18.
  • the bolt 309 pushes the driver 334 with the auxiliary bolt 311 against the return force of the spring 323, as shown in Figure 18 and, as soon as the door has arrived in its closed position, the spring 323 pushes the coach 334 in the direction of the arrow G to bring the two bolts 309 and 311 back to their closed position, pressing on the keeper 306 (FIG. 17).
  • the auxiliary bolt 311 made of fire-resistant material remains applied against the keeper 306 under the action of spring 323 and thus keeps the door closed .

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)
EP20000402993 1999-11-30 2000-10-27 Brandsicheres Schloss Expired - Lifetime EP1106752B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9915043A FR2801625B1 (fr) 1999-11-30 1999-11-30 Serrure resistante au feu
FR9915043 1999-11-30

Publications (2)

Publication Number Publication Date
EP1106752A1 true EP1106752A1 (de) 2001-06-13
EP1106752B1 EP1106752B1 (de) 2004-01-07

Family

ID=9552694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000402993 Expired - Lifetime EP1106752B1 (de) 1999-11-30 2000-10-27 Brandsicheres Schloss

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EP (1) EP1106752B1 (de)
FR (1) FR2801625B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20120194A1 (it) * 2012-03-05 2013-09-06 Mottura Serrature Di Sicurezza Scrocco per serratura, e serratura comprendente tale scrocco

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH202801A (fr) * 1937-12-04 1939-02-15 Anonyme Ramelet Freres Societe Porte munie d'une serrure à bec-de-cane.
CH384401A (de) * 1960-09-14 1964-11-15 Schlossfabrik Heusser Türschloss
US4709950A (en) * 1984-06-21 1987-12-01 American Device Manufacturing Co. Crash bar door locking device
EP0861956A2 (de) * 1997-02-26 1998-09-02 BKS GmbH Falle für Schlösser von Türen
EP0894927A1 (de) * 1997-07-31 1999-02-03 ATOMA ROLTRA S.p.A. Kraftfahrzeug-Türschloss
EP0928866A2 (de) * 1998-01-09 1999-07-14 Niederhoff & Sieper GmbH Schloss mit Falle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650619B1 (fr) 1989-08-02 1991-11-08 Vachette Sa Serrure antipanique a barillet de surete

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH202801A (fr) * 1937-12-04 1939-02-15 Anonyme Ramelet Freres Societe Porte munie d'une serrure à bec-de-cane.
CH384401A (de) * 1960-09-14 1964-11-15 Schlossfabrik Heusser Türschloss
US4709950A (en) * 1984-06-21 1987-12-01 American Device Manufacturing Co. Crash bar door locking device
EP0861956A2 (de) * 1997-02-26 1998-09-02 BKS GmbH Falle für Schlösser von Türen
EP0894927A1 (de) * 1997-07-31 1999-02-03 ATOMA ROLTRA S.p.A. Kraftfahrzeug-Türschloss
EP0928866A2 (de) * 1998-01-09 1999-07-14 Niederhoff & Sieper GmbH Schloss mit Falle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20120194A1 (it) * 2012-03-05 2013-09-06 Mottura Serrature Di Sicurezza Scrocco per serratura, e serratura comprendente tale scrocco

Also Published As

Publication number Publication date
FR2801625B1 (fr) 2003-05-30
EP1106752B1 (de) 2004-01-07
FR2801625A1 (fr) 2001-06-01

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