Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
  • B66B13/02—Door or gate operation
  • B66B13/14—Control systems or devices
  • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
  • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys

Definitions

• Locking device for a landing door with independent emergency unlocking
• the invention relates to the technical field of devices used for locking a landing door of an elevator shaft, casement or leaf.
• a locking device formed by a movable bolt lock, the housing of which is adapted to an upright of the door frame, so that the bolt can engage an additional strike fitted on the door leaf.
• the movement of the bolt is controlled by maneuvering means which comprise a lifting beam, a first arm of which is connected to the bolt while a second arm is connected to a cam intended to be actuated by control means carried by the cabin of the 'elevator.
• maneuvering means which comprise a lifting beam, a first arm of which is connected to the bolt while a second arm is connected to a cam intended to be actuated by control means carried by the cabin of the 'elevator.
• the locking device then comprises emergency unlocking means which most often consist of a square or a triangle secured to the lifter and placed at the pivot axis of the latter.
• the triangle is then accessible from the outside of the door jamb, so that an operator can, by means of a so-called emergency key, rotate the lifter and thus move the bolt of the lock in opening.
• emergency unlocking means give complete satisfaction with regard to the operation of the bolt regardless of the presence or not of an elevator car opposite the landing door, it should be noted that, insofar as the locking means are located on the axis of the lifting beam, it is not possible to differentiate by means of sensors a normal opening of an emergency unlocking. Indeed what regardless of the unlocking mode, the lifter and the emergency opening triangle move.
• the invention relates to a device for locking a wing door leaf of an elevator shaft of the type comprising:
• - a housing intended to be adapted on the door opening - locking means comprising a movable locking member between a locking position in which it is intended to cooperate with a complementary locking member carried by the leaf and a position unlocking in which the movement of the leaf is free, - means for operating the locking means intended to be actuated by control means carried by an elevator car,
• the locking device is characterized in that the unlocking means are independent of the operating means and of the locking member and are adapted to actuate the locking member only in the direction of unlocking.
• the invention also relates to a door comprising a frame and a leaf.
• this door is characterized in that it further comprises a locking device, according to the invention, adapted on the frame and means for accessing the emergency unlocking means of the locking device according to the invention.
• the invention also aims to provide means making it possible to upgrade preexisting locking devices of so as to ensure independence between the movements of the locking member and the movements of the emergency unlocking means.
• this emergency unlocking device comprises a transmission member which is intended to be integral with the operating means of the locking device on which the emergency unlocking device is adapted.
• the emergency unlocking device further comprises an emergency unlocking member which is independent of the transmission member and which is adapted to act on the transmission member only in the direction of unlocking.
• Figure 1 is a partial perspective of the leaf and the frame of a landing door of the elevator shaft using a locking device according to the invention forming a keeper with controlled opening.
• Figure 2 is an elevation along the plane II-II of Figure 1 of the keeper with controlled opening, constituting the device according to the invention.
• Figure 3 is an elevation along the plane III-III of the device according to the invention in an intermediate phase of its operation.
• Figures 4 and 5 are figures similar to Figures 2 and 3 respectively showing the device according to the invention in the unlocked position.
• FIGS. 6 and 7 are figures similar to Figures 2 and 3 respectively showing the device according to the invention in the locked position.
• FIGS. 8 and 9 are front and rear perspectives of an alternative embodiment of the locking device according to the invention as illustrated in FIG. 1.
• FIG. 10 is a perspective showing a non-limiting variant of the operating means of the locking device as illustrated in FIGS. 1 to 9.
• Figures 11 and 12 are front and rear perspectives of a locking device according to the invention produced in the form of a movable bolt lock.
• Figure 13 is a perspective of an emergency unlocking device according to the invention adapted on a lock according to the prior art.
• FIG. 14 is an exploded perspective view of the device according to FIG. 13.
• FIG. 15 is an elevation of the device according to FIG. 13.
• the invention relates to a locking device with controlled opening, generally designated by the reference 1 in FIG. 1, intended to be fitted in the upright 2 of a landing door frame of an elevator shaft in order to ensure the locking of a leaf 3 pivoting relative to the frame and being provided, at a rebate 4, with a locking member 5 intended to cooperate with the locking device 1.
• the locking device 1 constitutes a strike with controlled opening and the locking member 5 forms a bolt intended to cooperate with the strike 1.
• the keeper 1 constituting the locking device according to the invention, comprises a housing 10 which defines a tail 11 for receiving the bolt 5.
• the housing 10 comprises a side window 12 for the passage of the bolt 5 during the closing or opening of the leaf 3. In order to be able to maintain the bolt 5, trapped in the tail
• the keeper 1 comprises, as a locking member, a movable flap 13 carried by a carriage 14 movable between an open position of the window 12, as illustrated in FIGS. 4 and 5, and a position of window closing
• the keeper 1 further comprises means 15 for maneuvering the carriage.
• the operating means 15 comprise a cam 16 intended to be actuated by control means, not shown, carried by an elevator car, also not shown, to act on a rod 17 secured to the carriage 14 .
• the keeper 1 also comprises means 20 for returning the carriage 14 to the closed position.
• the keeper according to the example illustrated, is intended for be arranged in a vertical orientation, so that the carriage 14 is movable between a high open position and a low closed position.
• the return means 20 then comprise a return mass 21 integral with the carriage and intended to increase the mass of the moving element in translation so that the carriage 14 returns to the closed position under the effect of its weight and that of the recall mass 21.
• the use of a mass, as return means, has the advantage of guaranteeing a constant return force regardless of the position of the carriage 14.
• the return mass 21 is insensitive to wear phenomena or aging.
• the keeper 1 also comprises means 25 for blocking the movement of the carriage 14 which are intended to be released by the bolt 5 , so as to allow closing of the side window 12 by the flap 13, only in the presence of the bolt 5 in the tail 11.
• the locking means 25 can be made in any suitable manner.
• the locking means 25 comprise a latch 26 which is pivotally mounted about a substantially horizontal axis 27, so as to oscillate between a locking position as more particularly illustrated in FIGS. 3 and 5 in which the latch 26 forms an obstacle to the movements of the carriage when closing, and an erasing position in which movement of the carriage is free, as is more particularly illustrated in FIG. 7.
• the latch 26 is intended to be pushed back into the erasing position by the bolt 5.
• the latch 26 is preferably shaped so as not to be able to block the movement of the carriage 14 in the direction of opening the window.
• the locking means 25 also comprise means 28 for returning the latch 26 to the locking position.
• the return means 28 comprise a counterweight 29 which is intended to generate a return torque of the latch 26 in the blocking position as illustrated in FIG. 5.
• the control means carried by the car, actuate the cam 16 in the direction of the arrow F1, which causes a rise of the carriage 14 and of the flap 13 in the direction of the arrow F2 to a maximum open position as illustrated in FIG. 5.
• the window 12 is then released and the leaf 3 can be opened in the direction of arrow F3.
• the opening of the wing 3 causes a movement of the bolt 5, out of the tail 11, in the direction of the arrow F4.
• the latch 26, which is no longer stressed by the bolt 5, is then placed, under the effect of the return means 28, in the locking position on the path of the carriage 14.
• the carriage 14 Under the effect of its weight and that of the return mass 21, descends in the direction of the arrow F5 until it comes to bear on the end of the latch 26, as illustrated in FIG. 3.
• the latch 26 has, at its end, a stud 30 intended to come to engage in a complementary groove 31 of the carriage 14, so that the movements of the latch 26 are locked. In fact, given the engagement of the stud 30 in the groove 31, it is not possible to move the latch 26 from its locking position by exerting a simple pressure on the latch in the direction of arrow F5.
• the flap 13 when the carriage is in abutment on the end of the latch 26, the flap 13 is in a partially closed position of the window 12, as illustrated in FIGS. 1 and 3. In this partially closed position, the free end of the flap 13 is in the vicinity of the center of the window 12.
• the bolt 5 when it engages in the window 12 in the direction of the arrow F6, tends to push back the flap 13 and the carriage 14 in the direction of arrow F7. This movement releases the stud 30 from the groove 31 so that the movement of the latch 26 is unlocked and the latch can then be pushed back by the bolt 5.
• the bolt 5 In order to promote the raising of the flap 13, the bolt 5 has a front part which defines an inclined ramp 32 forming a support for the free end of the flap 13.
• the keeper 1 comprises a sensor or shunt 35 which delivers binary information indicating the locked or unlocked nature of the keeper 1.
• the shunt 35 can be supplemented by a second shunt 36 which delivers information concerning the closing or not of the leaf 3, so that the cross-checking of the information delivered by the shutter closing sensor 35 and the shunt 36 for controlling the closing of the leaf 3 makes it possible to verify the locking of the keeper 1 by closed position of the door.
• the keeper 1 In order to be able to allow the leaf 3 to open independently of the presence of an elevator car facing the door, the keeper 1 also comprises means 40 for emergency unlocking.
• the emergency unlocking means 40 are independent of the operating means 15 and of the carriage 14.
• the emergency unlocking means 40 are designed so that they cannot actuate the carriage assembly Flap 13, forming the latch locking member 1, only in the direction of an opening of the flap 13 and therefore of an unlocking.
• the emergency unlocking means 40 comprise a pinion 41 intended to be actuated by an emergency unlocking key 42 from the outside of the upright 2.
• the upright 2 has an opening 43 forming means of access to the part 44 of the pinion 41 intended to cooperate with the key 42.
• the part 44 has a relief, in a triangle, on which the key 42 engages.
• the part 44 could have any other polygonal or other relief shape or, on the contrary, a hollow shape in which the key 42 would engage.
• the pinion 41 meshes with a rack 44 carried by a drawer 45 movable between a rest position as illustrated in FIG. 2 and an unlocking position in which the drawer 45 pushes the carriage 14 against the force exerted by the means of reminder 20.
• the stroke of the organ of emergency unlocking formed by the drawer 45 is then at least sufficient to move the flap 13 and the carriage 14 to an open position allowing the locking means 25 formed by the latch 26 to be put in place or armed.
• implementation of the emergency unlocking means 40 is carried out as follows.
• the operator releases his action and removes the key 42, the slide and the carriage 14 descend under the action of the return means 20 to the position for blocking the movements of the carriage as illustrated in FIG. 3.
• the unlocking position of the drawer 45 can be described as unstable compared to the rest position of the drawer 45 insofar as the latter cannot remain in the unlocking position without an action exerted by the operator by means of the unlocking key 42.
• the emergency means cannot oppose, without the action of an outside operator, the proper functioning of the keeper 1.
• the emergency unlocking means are not actuated when the strike is unlocked by the operating means 15.
• a sensor 46 associated with the drawer 45 to detect an implementation of the emergency unlocking means.
• the information delivered by the sensor 46 is then particularly reliable, insofar as the sensor 46 is requested only by the movements of the drawer 45, movements which can only result from an external action by means of an emergency key .
• the independent nature of the emergency unlocking means arranged to act on the carriage 14 and the flap 13 only in the direction of a unlocking provides a locking device providing absolutely reliable information regarding the implementation of the emergency unlocking means.
• the presence of sensors 35 and 36, on the keeper according to the invention makes it possible to control the effective locking of the door in the closed position as well as to identify an opening mode, normal or emergency, of the spoils.
• the keeper 1 is in a standby position, illustrated in FIGS. 2 and 3, which guarantees correct closure and locking of the leaf when the latter is returned by means of elastic or pneumatic return equipping its pivot.
• the stroke of the carriage 14, the slope of the ramp 32 of the bolt 5 and the force exerted by the return means 25 are determined so that the force to be exerted by the leaf, at the bolt 5 so as to repel the flap 13 corresponds to the force available at the level of the return mechanism of the leaf in the closed position when the latter has an almost zero speed when the bolt engages in the window 12.
• the independent nature of the emergency unlocking means authorizes the use of means 47 for locking the emergency unlocking.
• the locking means comprise, according to the illustrated example, an electromagnetic mechanism comprising a lock controlled by opening by a spring and controlled, in closing and blocking of the slide 44, by an electromagnet. When the electromagnet is activated, the slide 44 cannot be moved to unlock the strike. On the other hand, when the electromagnet is deactivated, the movement of the slide 44 is free.
• the locking means it is necessary to deactivate the locking means in order to perform an emergency unlocking, which prevents an ill-intentioned implementation of the emergency unlocking.
• the emergency unlocking means are not blocked in the event of an interruption of the electrical supply.
• the return means of the carriage 14 in the closed position of the side window 12 are constituted by a return mass 21.
• the return means 20 could be produced in any other way.
• FIG. 8 illustrates an alternative embodiment of the keeper as described above according to which the return means 20 are constituted by a helical spring 48.
• the means 28 for returning the latch 26 to the blocking position are not necessarily constituted by a counterweight but can also be produced in the form of a spring 49 tending to push the latch 26 back into the blocking position.
• the return means of the carriage 14 or of the latch 26 could be produced in another form and for example comprise a coil spring or associated with a return mass or even a permanent magnet.
• the keeper 1 is designed so that it can be used for closing a leaf opening to the right or a leaf opening to the left.
• the keeper 1 has a symmetrical design.
• the housing 10 comprises opposite the window 12 a second window 50 intended to allow the passage of the bolt 5.
• the carriage 14 is removable and has, opposite the flap 13, a second flap 51
• the carriage 14 could also carry a second shutter forming the second window 50.
• the means of blocking 25 are removable and the housing comprises a second pivot 53 intended to receive the latch 26 in a position symmetrical to its position in FIGS. 1 to 9, so that the blocking means 25 can perform their blocking function when the carriage provides the closing the window 50 by means of the flap 51.
• the maneuvering means 15 comprise a cam which is articulated on an element secured to the housing of the strike 1.
• the operating means 15 could be made in any other form.
• FIG. 10 illustrates an exemplary embodiment of maneuvering means implementing a cam 54 which actuates a flexible control cable 55 disposed in a sheath 56.
• the cable is linked to the carriage 14 so as to be able to exert an effort in the direction of traction on the latter to move it into the open position but cannot exert an effort in the opposite direction on the carriage 14.
• the operating means 15 could also include an operating electromagnet or any other electromagnetic system.
• the locking device according to the invention is produced in the form of a keeper with controlled opening. However, the locking device according to the invention could be produced in any other form.
• FIG. 11 and 12 illustrate another exemplary embodiment of a locking device according to the invention constituting a lock, generally designated by the reference 59, whose housing 10 is equipped, as a member for locking, of a bolt 60 movable between an extension or locking position, as illustrated and a retraction or unlocking position not shown.
• the bolt 60 is intended to come to engage in a complementary locking member, not shown, such as a keeper arranged in the leaf of a door.
• the lock 59 comprises, as a means 15 for maneuvering the bolt 60, a lifter 61 pivoting about an axis 62.
• the lifter has a first branch 63 connected to the bolt 60 and a second branch 64 intended to be connected to a member to maneuver, such as for example a cam substantially similar to that shown in Figure 1, intended to be actuated by the control means carried by an elevator car.
• the movable bolt lock also has means 40 for emergency unlocking.
• the emergency unlocking means 40 comprise, as an unlocking member, a cam 65 equipped with means for receiving the emergency unlocking key 42.
• the cam 65 is intended to act on an arm 66 of the lifter to move the bolt 60 in the retracted or unlocked position.
• the cam 65 is not moved during movements of the spreader 66 in the context of normal unlocking of the bolt 60 by the operating means .
• the path of the cam 65 is shaped so that, in the unlocked position, the cam is in an unstable state, so that it cannot oppose a return to the position of bolt lock 60.
• the controlled opening lock 60 also comprises a sensor 67 detecting the operation of the cam 65 and therefore emergency unlocking means 40.
• the emergency unlocking means are implemented in locking devices designed for this purpose.
• the emergency unlocking means according to the invention can also be used in the context of an emergency unlocking device intended to be adapted to an existing locking device with controlled opening.
• FIGS 13 to 15 illustrate an emergency unlocking device 70, adapted on a lock 71 with movable bolt 72 according to the prior art.
• a lock 71 generally comprises an emergency unlocking triangle 73, secured to a bolt operating member 72, so that there is a reciprocity between the movements of the bolt 72 and those of the pre-existing emergency unlocking triangle 73.
• the emergency unlocking device comprises a transmission member 74 which fits on the triangle 73 so as to be integral with the latter and the operating movements of the bolt 72.
• the transmission member 74 forms a lever arm.
• the device 70 comprises, as an emergency unlocking member, a cam 75 equipped with means 76 for receiving the emergency unlocking key.
• the cam 75 is independent of the transmission member or arm 74. The cam 75 is then intended to act on the arm 74 to cause the triangle to rotate, so as to move the bolt 72 in the retracted or unlocked position.
• the emergency unlocking device 70 comprises a return spring 77 of the cam 75 in the rest position.
• the unlocking position of the cam 75 is unstable while the rest position of the cam is stable.
• the device 70 also comprises a sensor 78. Finally, all of the components of the emergency unlocking device 70 are fixed to the housing of the lock 71 by means of a fixing plate 79 which has an opening for the passage of the triangle 76 for operating the cam 75.

Landscapes

• Engineering & Computer Science (AREA)
• Automation & Control Theory (AREA)
• Lock And Its Accessories (AREA)
• Elevator Door Apparatuses (AREA)
• Special Wing (AREA)
• Coin-Freed Apparatuses For Hiring Articles (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8865440

Family Applications (1)

Country Status (6)

Families Citing this family (10)

Family Cites Families (4)

• 2001
  • 2001-07-12 FR FR0109309A patent/FR2827265B1/fr not_active Expired - Fee Related
• 2002
  • 2002-07-09 WO PCT/FR2002/002404 patent/WO2003006354A1/fr active IP Right Grant
  • 2002-07-09 ES ES02764957T patent/ES2272765T3/es not_active Expired - Lifetime
  • 2002-07-09 AT AT02764957T patent/ATE339382T1/de active
  • 2002-07-09 EP EP02764957A patent/EP1404605B1/de not_active Expired - Lifetime
  • 2002-07-09 DE DE60214712T patent/DE60214712T2/de not_active Expired - Lifetime

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events