EP2423414B1 - Lock system and building locking system - Google Patents
Lock system and building locking system Download PDFInfo
- Publication number
- EP2423414B1 EP2423414B1 EP20100174545 EP10174545A EP2423414B1 EP 2423414 B1 EP2423414 B1 EP 2423414B1 EP 20100174545 EP20100174545 EP 20100174545 EP 10174545 A EP10174545 A EP 10174545A EP 2423414 B1 EP2423414 B1 EP 2423414B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bolt
- lock
- coupling
- blocking
- unblocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
- 230000000903 blocking effect Effects 0.000 claims description 118
- 230000008878 coupling Effects 0.000 claims description 86
- 238000010168 coupling process Methods 0.000 claims description 86
- 238000005859 coupling reaction Methods 0.000 claims description 86
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- 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
- E05B15/101—Spring-retracted bolts
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0072—Operation
- E05B2047/0076—Current to lock only, i.e. "fail-safe"
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B55/00—Locks in which a sliding latch is used also as a locking bolt
- E05B55/06—Locks in which a sliding latch is used also as a locking bolt the handle being disconnected
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts
-
- 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
- E05B65/108—Electronically controlled emergency exits
Definitions
- the invention relates to the field of locks an in particular to the field of electrically actuable locks.
- EP0231532B1 discloses a lock comprising a locking house, a day bolt and a night bolt, each bolt slidable between an extended locking position and a retracted position, wherein the locking mechanism is designed as a packet of tumblers though which extends a locking pin projecting laterally from the night bolt, the actuating member for the locking mechanism is a tripper having a cam acting on the tumblers and having an arm projecting from the locking house, an electric magnet that, when energised, acts on said tripper arm to hold the tripper in a position wherein the tripper does not act on the tumblers, said tripper being spring-biased in a direction wherein the tripper loads the tumblers to the position releasing the night bolt, all this without influencing the day bolt.
- the locking mechanism is designed as a packet of tumblers though which extends a locking pin projecting laterally from the night bolt
- the actuating member for the locking mechanism is a tripper having a cam acting on the tumblers and
- the tripper further includes a resetting arm which in the position in which the tumblers are swivelled beyond reach, and in the position wherein the tumblers are not influenced by the lever, is within reach of a member connected to a day-bolt-handle operated tumbler, the arrangement being such that a movement of the day-bolt handle is sufficient to move the tripper into its inoperative position fixed by the electric magnet, provided the electric magnet is energised.
- the resetting arm is operated through the day-bolt-handle tumbler.
- EP 0 248 488 discloses a lock in which a deadbolt is released by applying a current to a solenoid.
- a plunger By energising the solenoid, a plunger is pulled in the solenoid, which is a basic function of an electromechanical actuator.
- the plunger is biased by a spring in a position being partially outside the solenoid.
- the plunger is connected to a first lever. In a resting position, the first lever holds a second lever in position.
- the first lever is swivelled counter clockwise. By this action, the first lever releases the second lever.
- the second lever swivels counter clockwise, a long arm forming part of the second lever takes along a pin provided on a runner.
- the runner moves in an arcuate tract, taking along the deadbolt with the pin as the pin engages with a drive face of the deadbolt.
- locking the lock after the electric magnet has been de-energised requires first to operate the day-bolt-handle to bring the tripper arm back to the electric magnet to bring the cam back to a position wherein it does not influence the tumblers. Only after that action, the night bolt can be brought to the locking position by means of a key operating a notch of a locking cylinder. So after de-energising the electric magnet, two actions are required for locking the lock. It is preferred to have a lock that is more convenient to handle, preferably be reducing the number of actions required for resetting and locking the lock.
- the invention provides in a first aspect a lock system comprising a mechanical lock comprising: a lock casing arranged for receiving a locking mechanism comprising a pivotable cam; a first bolt comprised by the lock casing, the first bolt being movable by the pivotable cam between an unlocked position in which the first bolt is substantially fully comprised by the lock casing and a locked position in which the first bolt is partially located outside the casing; a bolt blocking member movable between a blocked position in which the blocking member blocks the first bolt in the locked position and an unblocked position in which movement of the first bolt is not blocked by the bolt blocking member; a coupling member being movable between a first position and a second position, said coupling member being arranged to move the bolt blocking member from the blocked position to the unblocked position by moving from the first position to the second position; an electromechanical actuator; the lock further comprising: a bolt biasing element for biasing the first bolt towards the unlocked position; and a coupling biasing element for biasing the coupling member to the second position
- the lock system comprises a coupling biasing element for biasing the coupling member to the second position.
- the coupling biasing element pulls the coupling element towards the second position as soon as the electromagnet is de-energised, directly moving the bolt blocking element to move to the unblocked position to enable the bolt to move to the unlocked position.
- the coupling member is movable in a substantially linear way that is substantially perpendicular to the movement of the bolt blocking member and the coupling member comprises a main coupling part movable substantially perpendicularly to the movement of the bolt blocking member; and a translation coupling element for translating a movement of the main part to a movement of the translation element having a component perpendicular to a movement of the main part.
- the lock system can be made more compact because not all interacting components are required to move in one line.
- the translation coupling element is pivotably mounted on the main coupling part and a linear movement of the main coupling part results in a pivoting movement of the translation coupling element.
- a pivotably mounted translation coupling element does not require additional linear space in line with the element, though only some space aside of the element. This reduces the amount of space required and can therefore contribute to a compact design of the lock system.
- the bolt blocking member comprises an unblocking member arranged to be engaged by the pivotable cam for moving the bolt blocking member to the unblocked position.
- the bolt blocking member can be brought to the unblocked position and the bolt can be brought to the unlocked position by one and the same actuator, i.e. the pivotable cam.
- the invention provides in a second aspect a building locking system comprising: at least one lock system according to the invention and/or embodiments thereof and a lock control unit couplable to the lock system and enabled to actuate the electromechanical actuator of the lock system.
- the advantages of the invention can be applied to a building or a part thereof and the lock system or lock systems can be controlled at a central point.
- Figure 1A and Figure 1B show a lock system 100 comprising a casing 110, a bolt 120, a blocking tumbler shaft 130, an unblocking tumbler shaft 140, an electromagnet 150 and a lock cylinder holding opening 102 for receiving a lock cylinder.
- Figure 2 shows a lock cylinder 200 comprising a cylinder housing 202, a key slit 208 and a cylinder cam 204 comprising a cylinder notch 206.
- a key is stuck in the key slit 208. If the combination of the key fits the combination of the lock cylinder 200, the key can be turned, resulting in turning the cylinder cam 204 with the cylinder notch 206.
- the lock cylinder 200 can be received by the lock cylinder holding opening 102.
- the bolt 120 is slidable from a locked position as depicted in figure 1A wherein the bolt 120 is partially located outside the lock casing 110 and an unlocked position as depicted in Figure 1B wherein the bolt 120 is fully comprised by the casing.
- the lock system 100 is preferably fit in a door, with the bolt 120 engaging with a hole in a doorpost for locking the door. The door is locked with the bolt 120 is in the locked position and the door is unlocked with the bolt 120 in the unlocked position or in any case substantially comprised by the lock casing 110 that the bolt 120 is not in the hole of the doorpost anymore.
- the bolt 120 comprises a bolt slit 122 fitting around a bolt holding pin 124 that is fixed to the casing 110.
- the bolt holding pin 124 allows the bolt 120 to slide or move linearly from left to right and vice versa.
- the bolt 120 comprises a bolt spring pin 128 on which a bolt spring 126 exerts a spring force, biasing the bolt 120 in the unlocked position.
- the bolt spring 126 is attached to the casing 100.
- the bolt 120 also comprises a bolt recess 129 in which the notch 206 of the lock cylinder 200 fits. This enables the bolt 120 from being moved from the unlocked position to the locked position and back by turning the cam 204 by means of a key.
- the blocking tumbler shaft 130 comprises a blocking tumbler slit 132 fitting around a blocking tumbler holding pin 134 that is fixed to the casing 110.
- the blocking tumbler holding pin 134 allows the blocking tumbler shaft 130 to slide or move linearly up and down.
- the blocking tumbler shaft comprises a blocking tumbler spring pin 138 on which a blocking tumbler spring 136 exerts a spring force, biasing the blocking tumbler shaft 130 in a blocking position as shown by Figure 1A .
- the blocking tumbler spring 136 is attached to the casing 100.
- the blocking tumbler shaft 130 blocks the bolt 120 from moving to the unlocked position towards which it is biased by the bolt spring 126.
- the bolt 120 blocks the blocking tumbler shaft 130 from moving to the blocking position of the blocking tumbler shaft 130.
- the blocking tumbler shaft 130 further comprises an unblocking element 139 (drawn in intermitted lines for reasons of clarity).
- the unblocking element 139 is viewed from the top plane of Figure 1A provided on top of the bolt 120; in use the unblocking element 139 is located parallel to the bolt 120.
- the unblocking tumbler shaft 140 comprises an unblocking tumbler slit 142 fitting around an unblocking tumbler holding pin 144 that is fixed to the casing 110.
- the unblocking tumbler holding pin 144 allows the unblocking tumbler shaft 140 to slide or move linearly from left to right and vice versa.
- the unblocking tumbler shaft 140 held in a blocking position by the electromagnet 150 that attracts the unblocking tumbler shaft 140 when energised. This position is depicted by Figure 1A .
- the unblocking tumbler shaft 140 is biased towards an unblocking position as depicted by Figure 1B by an unblocking tumbler spring 146.
- the unblocking tumbler spring 146 is attached to the casing 100.
- the unblocking tumbler shaft 140 moves from the blocking position depicted by Figure 1A to the unblocking position depicted by Figure 1B by virtue of the force exerted by the unblocking tumbler spring 146. With the unblocking tumbler shaft 140 moving towards the unblocking position, an upper diagonal side 149 of the unblocking tumbler shaft 140 pushes against the lower right corner of the blocking tumbler shaft 130.
- the unblocking tumbler shaft 140 cannot be moved back to the unblocking position by energising the electromagnet 150. This is because the magnetic field is at the distance between the unblocking tumbler shaft 140 and the electromagnet 150 not strong enough to counter the force exerted by the unblocking tumbler spring 146.
- Figure 3A depicts the lock system 100 where the cylinder cam 204 with the cylinder notch 206 is turn a quarter round counter-clockwise. In this position, the unblocking tumbler shaft 140 is slid back to the unblocking position. If the electromagnet 150 is energised, the unblocking tumbler shaft 140 is kept in the unblocking position. Subsequently, the cylinder cam 204 is turned another quarter counter-clockwise as depicted in Figure 3B .
- Figure 3B depicts the cylinder notch 206 having been displaced in the bolt recess 129, taking along the bolt 120 towards the locked position. Turning the cylinder cam 204 another half round counter-clockwise results in the bolt being slid further towards the locked position until the blocking tumbler shaft 130 is free to move to the blocking position. By virtue of the force exerted by the blocking tumbler spring 136, the blocking tumbler shaft 130 moves to the blocking position. With the blocking tumbler shaft 130 in the blocking position, the bolt 120 is kept in the locked position even when the cylinder notch is back to its original lower position.
- the lock system 100 can also be unlocked by means of a key engaged with the lockcylinder 200.
- a key engaged with the lockcylinder 200 Starting with the status of the lock system as depicted by Figure 1A , the key in the lock cylinder 200 is turned half a round clockwise. This results in the cylinder cam 204 with the cylinder notch 206 engaging with the bolt recess 129, taking along the bolt 120. This is depicted by Figure 3B .
- the blocking tumbler shaft 130 is to be moved in the unblocking position. While turning the cylinder cam 204 clockwise, the cylinder notch 206 also engages with the unblocking element 139. The unblocking element 139 is moved upward and with that movement, the full blocking tumbler shaft 130 by which the unblocking element 139 is comprised, is moved upward towards the unblocking position. With the blocking tumbler shaft 130 in the unblocking position, the bolt 120 can be moved to the unlocked position by the cylinder cam 204 and the cylinder notch 206.
- Figure 4A shows a lock system 400 comprising a casing 410 comprising a lock cylinder holding opening 402, a bolt 420, a blocking tumbler shaft 430, an unblocking tumbler shaft 440, a spring latch 470, an electromagnet 450, a latch coupling tumbler 488, a latch operating lever 472, a connector 490 and a sensor 492.
- the lock system 400 is shown in unlocked position.
- the lock system is operable with a key by inserting the lock cylinder 200 in the lock cylinder holding opening 402.
- the bolt 420 is shown in an unlocked position, with the bolt 420 substantially fully comprised by the casing 410. Dotted lines indicate the position of the bolt 420 in locked position, in which position the bolt 420 is partly located outside the lock casing 410.
- the bolt 420 is biased towards the unlocked position by a bolt spring 426, engaging with a bolt spring pin 428.
- the blocking tumbler shaft 430 is depicted in an unblocking position.
- the blocking tumbler shaft 430 is configured to be linearly slidable from the position depicted by Figure 4A to a lower position and vice versa. This movement is enabled by three blocking tumbler slits 432 engaging with three blocking tumbler holding pins 434.
- the blocking tumbler shaft 430 blocks the bolt 420 in the locked position. If the bolt 420 is in the unlocked position, it blocks the blocking tumbler shaft 430 from moving to the blocking position.
- the blocking tumbler shaft 430 is biased towards the blocking position by a blocking tumbler spring 436. This results in the blocking tumbler shaft 430 to move to the blocking position if the bolt 420 is in the locked position, provided the blocking tumbler shaft 430 is not blocked by other elements of the lock system 400, as will become apparent from the rest of the description. In the blocking position, the blocking tumbler shaft 430 blocks the bolt 420 from moving to the unlocked position.
- the unblocking tumbler shaft 440 is depicted in an unblocking position.
- the unblocking tumbler shaft 440 is configured to be linearly slidable from the position depicted by Figure 4A to a more right position and vice versa. This movement is enabled by an unblocking tumbler slit 442 engaging with an unblocking tumbler holding pin 444. In the unblocking position, the unblocking tumbler shaft 440 blocks the blocking tumbler shaft 430 in the unblocking position.
- the unblocking tumbler 460 is pivotably connected to the unblocking tumbler shaft by means of a tumbler coupling pin 464 and pivotably connected to the casing by means of a case coupling pin 462.
- the unblocking tumbler 460 also comprises an unblocking lever pin 466 engaging with the lower side of the blocking tumbler shaft 430 for moving the blocking tumbler shaft 430 to the unblocking position and keeping the blocking tumbler shaft 430 in that position.
- the unblocking tumbler 460 In the blocking position, wherein the unblocking tumbler shaft 440 is located more to the right than depicted on Figure 4A , the unblocking tumbler 460 is pivoted clockwise. The unblocking tumbler 460 is pivoted around the tumbler coupling pin 464, resulting in the unblocking lever pin 466 to be in a lower position in which it does not block the blocking tumbler shaft 430 anymore from moving to the blocking position anymore. With the blocking tumbler shaft 430 not being blocked by the unblocking lever pin 466, the blocking tumbler shaft 430 is enabled to move to the blocking position if the bolt 420 is in the locked position.
- the unblocking tumbler shaft 440 is in the blocking position, i.e. in a position more to the right than depicted on Figure 4A .
- the unblocking tumbler shaft 440 is kept in place by the electromagnet 450 that is in a normal state energised.
- the electromagnet 450 has a current flowing through a coil comprised by the electromagnet 450, resulting in a magnetic flux in a core comprised in the coil.
- the unblocking tumbler 460 is swivelled to the right over the tumbler coupling pin 464 compared to the position depicted by Figure 4A .
- the bolt 420 is in common use either in the locked or unlocked position.
- the blocking tumbler shaft 430 is in common use in a position corresponding to the position of the bolt. This means that if the bolt 420 is in the locked position, the blocking tumbler shaft 430 is in the blocking position and if the bolt 420 is in the unlocked position, the blocking tumbler shaft 430 is in the unblocking position.
- the current supply to the electromagnet 450 is interrupted.
- the current supply can either be interrupted by a central control system, due to fire consuming the power supply cable or by other causes. Interruption of current supply to the electromagnet 450 results in loss of magnetic flux and therefore in loss of magnetic force exerted on the unblocking tumbler shaft 440.
- the unblocking tumbler shaft 440 is biased to the unblocking position by an unblocking tumbler spring 446. By virtue of this biasing force, the unblocking tumbler shaft 440 moves to the left.
- the moving of the unblocking tumbler shaft 440 to the left results in the unblocking tumbler 460 pivoting to the left in a more upright position.
- horizontal movement of the unblocking tumbler shaft 440 is translated to movement in a direction that has a component that is perpendicular to the movement of the unblocking tumbler shaft 440, with the unblocking tumbler 460 acting as translation element.
- this perpendicular component of movement is in the upward direction in the view of Figure 4A , towards the blocking tumbler shaft 430.
- the pivoting of the unblocking tumbler 460 will cause the unblocking lever pin 466 to engage with the lower side of the blocking tumbler shaft 430.
- the unblocking lever pin 466 moves towards the blocking tumbler shaft 430 and move the blocking tumbler shaft 430 to the unblocking position.
- the bolt spring 426 the bolt 420 will move to the unlocked position. This will unlock a door in which the lock system 400 is fit.
- the unblocking tumbler shaft 440 will be kept in the unblocking position, blocking the blocking tumbler shaft 430 from moving to the blocking position, the bolt 420 will either stay in the unlocked position or move directly back to the unlocked position. This is because the blocking tumbler shaft will not be able to move to the blocking position for blocking the bolt 420 to remain in the locked position.
- the magnetic field provided by the electromagnet 450 is not strong enough to attract the unblocking tumbler shaft 430 towards the electromagnet to bring it back to the blocking position. This means that even though current would be supplied again to the electromagnet 450, the blocking tumbler shaft 430 would still be blocked in the unblocking position. This means that the lock system 400 cannot be blocked anymore. Therefore, the unblocking tumbler shaft 440 is at the upper left side aligned with the right side of the lock cylinder holding opening 402.
- the notch 206 When the lock system 400 is intended to be locked by means of a key, turning the key and with that the cam 204 with the notch 206 of the lock cylinder fit in the lock cylinder holding opening 402 in a counter-clockwise direction, the notch 206 will first engage with the upper left side of the unblocking tumbler shaft 430, moving the unblocking tumbler shaft 430 to the blocking position. Subsequently, by turning the key further counter-clockwise, the notch 206 will engage with a bolt recess 429, taking along the bolt 420 towards the locked position.
- the notch 206 of the cam 204 is turned clockwise. In the locked position, the bolt recess 429 is located more to the left than depicted by Figure 4 And the blocking tumbler shaft 430 will be in a lower position. While turning the notch 206 clockwise in an upward direction, the notch 206 will engage with the lower left part 439 or unblocking member of the blocking tumbler shaft 430 and the bolt recess 429. The blocking tumbler shaft 430 will move to the unblocking position, allowing the bolt 420 to be moved to the unlocked position by the notch 206 engaging with the bolt recess 429.
- the bolt 420 has a bolt tumbler 424 connected to it that is pivotable over a bolt tumbler connecting pin 425 that is connected to the casing 410.
- the sensor 492 is a micro switch. With the bolt 420 in the unlocked position, a button of the sensor 492 is pressed and with the bolt 420 in the locked position, the button of the sensor 492 is not pressed. In this way, the position of the bolt 420 can be detected. Sensor data can be read through the connector 490. Furthermore, the connector 490 also provides contacts for current supply to the electromagnet 450.
- the lock system 400 also comprises the spring latch 470.
- the spring latch is slidably movable to a locked position as depicted in Figure 4 And an unlocked position in which the spring latch 470 is fully comprised in the casing 410.
- the spring latch 470 is biased towards the locked position by a latch spring 476, engaging with a first latch protrusion 471. If the bolt 420 is in the unlocked position, a latch tumbler shaft 422 can be slid from the position depicted by Figure 4A to a higher position. This is done by the notch 206 of the lock cylinder 200 inserted in the lock cylinder holding opening 402, turning the cam 204 clockwise. The notch engages with a latch tumbler shaft notch 423, lifting the latch tumbler shaft 422.
- the latch tumbler shaft 422 engages with a lower side of the latch coupling tumbler 488.
- the latch coupling tumbler 488 pivots clockwise and the upper part of the latch coupling tumbler 488 engages with the first latch protrusion 471. This, in turn, results in the spring latch 470 to move to the unlocked position.
- the spring latch 470 is also operable by a handle fit in a square spring latch operating hole 481.
- the spring latch operating hole 481 is provided in a flange 482 that is pivotably operable by turning a handle fit in the spring latch operating hole 481.
- the flange 482 is provided with a flange recess 483 in which a coupling notch 485 of a coupling catch 484 is accommodated.
- the coupling catch 484 is coupled to the latch operating lever 472.
- the upper part of the latch operating lever is arranged to engage with a second latch protrusion 473.
- Swivelling a handle fit in the spring latch operating hole 481 clockwise results in swivelling of the flange 482. Due to the flange 482 being coupled to the coupling catch 484 via the flange recess 483 and the coupling notch 485, the coupling catch 484 is also swivelled in a clockwise direction. The coupling catch 484 takes along the latch operating lever 472 which in turn slides the spring catch 470 towards the unlocked position. Releasing the handle will result in the spring latch 470 sliding back to the locked position by virtue of the force exerted by the latch spring 476 on the first latch protrusion 471.
- the coupling tumbler shaft 487 is moved up.
- Figure 4B and Figure 4C depict this action in further detail.
- Figure 4B depicts the bolt 420 in the unlocked position.
- the coupling tumbler 438 rests with its lower right corner against the upper protrusion 427.
- the coupling tumbler shaft 487 rests with its lower part upon a coupling tumbler protrusion 437.
- the coupling tumbler 438 is pivotably mounted on a blocking tumbler holding pin 434.
- the upper protrusion 427 acts upon the lower right part of the coupling tumbler 438, resulting in a pivoting action of the coupling tumbler 438.
- This is depicted in Figure 4C .
- the pivoting action yields an upward movement of the coupling tumbler protrusion 437, moving in turn the coupling tumbler shaft 487 upward.
- the coupling tumbler 438 may be omitted in other embodiments, where the upper protrusion directly engages with the lower left part of the coupling tumbler shaft 487.
- the coupling tumbler shaft 487 is coupled to the coupling catch 484 via a coupling pin provided on the coupling catch that fits in a coupling slit 488 provided in the coupling tumbler shaft 487. With the coupling tumbler shaft 487 moving up, the coupling catch 484 is moved up as well. This results in the coupling notch 485 being lifted from the flange recess 483, thus removing the coupling between the flange 482 on one side and the coupling catch 484 and the spring latch 470 on the other. Operation of a handle fit in the spring latch operating hole 481 will have not effect than the mere swivelling of the handle and the flange 482.
- FIG. 5 discloses a building locking system 500 fit in a building.
- the building locking system 500 comprises a plurality of locks systems 502 fit in the building.
- the lock systems 502 may be lock systems as discussed before or other embodiments of the lock system according with the invention.
- the building locking system 500 further comprises a lock control unit 510 comprising a sensor communication circuit 512, a lock actuating circuit 514, a control circuit 516 and a general communication unit 518.
- the control circuit 516 is operatively coupled to the sensor communication circuit 512, the lock actuating circuit 514 and the general communication unit 518.
- the sensors and in particular the micro switches of the lock systems 502 are coupled to the sensor communication unit 512 and the actuators like electromagnets of the lock systems 502 are coupled to the lock actuating circuit 514.
- the lock control unit is enabled to detect the positions of bolts and blocking tumbler shafts of the lock systems 502.
- the lock actuating circuit 514 the electromagnets of the lock systems 502 can be actuated.
- the general communication unit 518 allows the lock control unit 510 to be coupled to a fire detection system or another emergency detection system. Additionally or alternatively, the general communication unit 518 enables the control unit 510 to be coupled to other computer or control units, either dedicated to a special function or general purpose.
- the lock control unit 510 normally operates in a normal state, if there is no emergency situation. In this state, lock control unit 510 is in standby state and the lock systems 502 are not operated.
- the lock control unit 510 switches to an emergency state in which the electromagnets of the lock systems 502 are operated to unlock the lock systems 502. As discussed before, this is done by de-energising the electromagnets by interrupting the current supply to those electromagnets to allow bolts of the lock systems 502 to be retracted. Correct execution of this action is verified by reading out positions of various sensors and in particular micro switches in the lock systems 502 detecting positions of bolts and/or positions of blocking tumbler shafts.
- This operation of the building lock system 500 is controlled by the control circuit 516 that can be a microcontroller, a microprocessor or a similar control unit.
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- Lock And Its Accessories (AREA)
Description
- The invention relates to the field of locks an in particular to the field of electrically actuable locks.
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EP0231532B1 discloses a lock comprising a locking house, a day bolt and a night bolt, each bolt slidable between an extended locking position and a retracted position, wherein the locking mechanism is designed as a packet of tumblers though which extends a locking pin projecting laterally from the night bolt, the actuating member for the locking mechanism is a tripper having a cam acting on the tumblers and having an arm projecting from the locking house, an electric magnet that, when energised, acts on said tripper arm to hold the tripper in a position wherein the tripper does not act on the tumblers, said tripper being spring-biased in a direction wherein the tripper loads the tumblers to the position releasing the night bolt, all this without influencing the day bolt. The tripper further includes a resetting arm which in the position in which the tumblers are swivelled beyond reach, and in the position wherein the tumblers are not influenced by the lever, is within reach of a member connected to a day-bolt-handle operated tumbler, the arrangement being such that a movement of the day-bolt handle is sufficient to move the tripper into its inoperative position fixed by the electric magnet, provided the electric magnet is energised. The resetting arm is operated through the day-bolt-handle tumbler. -
EP 0 248 488 discloses a lock in which a deadbolt is released by applying a current to a solenoid. By energising the solenoid, a plunger is pulled in the solenoid, which is a basic function of an electromechanical actuator. The plunger is biased by a spring in a position being partially outside the solenoid. The plunger is connected to a first lever. In a resting position, the first lever holds a second lever in position. When the plunger is pulled in the solenoid as the solenoid is energised, the first lever is swivelled counter clockwise. By this action, the first lever releases the second lever. The second lever swivels counter clockwise, a long arm forming part of the second lever takes along a pin provided on a runner. The runner moves in an arcuate tract, taking along the deadbolt with the pin as the pin engages with a drive face of the deadbolt. - According to prior art, locking the lock after the electric magnet has been de-energised, requires first to operate the day-bolt-handle to bring the tripper arm back to the electric magnet to bring the cam back to a position wherein it does not influence the tumblers. Only after that action, the night bolt can be brought to the locking position by means of a key operating a notch of a locking cylinder. So after de-energising the electric magnet, two actions are required for locking the lock. It is preferred to have a lock that is more convenient to handle, preferably be reducing the number of actions required for resetting and locking the lock.
- The invention provides in a first aspect a lock system comprising a mechanical lock comprising: a lock casing arranged for receiving a locking mechanism comprising a pivotable cam; a first bolt comprised by the lock casing, the first bolt being movable by the pivotable cam between an unlocked position in which the first bolt is substantially fully comprised by the lock casing and a locked position in which the first bolt is partially located outside the casing; a bolt blocking member movable between a blocked position in which the blocking member blocks the first bolt in the locked position and an unblocked position in which movement of the first bolt is not blocked by the bolt blocking member; a coupling member being movable between a first position and a second position, said coupling member being arranged to move the bolt blocking member from the blocked position to the unblocked position by moving from the first position to the second position; an electromechanical actuator; the lock further comprising: a bolt biasing element for biasing the first bolt towards the unlocked position; and a coupling biasing element for biasing the coupling member to the second position; wherein the electromechanical actuator is couplable to the coupling member, the coupling member being member between the first position in which it is being held by an electromagnetic force provided by the electromechanical actuator if the electromechanical actuator is energised, and the second position if the electromechanical actuator is not energised; characterised in that said coupling member is movable from the second position to the first position by the pivotable cam.
- By arranging the coupling member to be actuable by the same pivotable cam that moves the bolt, only one action is required for resetting and locking the lock system.
- According to the invention the lock system comprises a coupling biasing element for biasing the coupling member to the second position. The coupling biasing element pulls the coupling element towards the second position as soon as the electromagnet is de-energised, directly moving the bolt blocking element to move to the unblocked position to enable the bolt to move to the unlocked position.
- In an embodiment of the lock system according to the invention, the coupling member is movable in a substantially linear way that is substantially perpendicular to the movement of the bolt blocking member and the coupling member comprises a main coupling part movable substantially perpendicularly to the movement of the bolt blocking member; and a translation coupling element for translating a movement of the main part to a movement of the translation element having a component perpendicular to a movement of the main part.
- By providing the translation coupling element, the lock system can be made more compact because not all interacting components are required to move in one line.
- In a further embodiment of the lock system according to the invention, the translation coupling element is pivotably mounted on the main coupling part and a linear movement of the main coupling part results in a pivoting movement of the translation coupling element. A pivotably mounted translation coupling element does not require additional linear space in line with the element, though only some space aside of the element. This reduces the amount of space required and can therefore contribute to a compact design of the lock system.
- In yet a further embodiment of the invention, the bolt blocking member comprises an unblocking member arranged to be engaged by the pivotable cam for moving the bolt blocking member to the unblocked position. In this embodiment, the bolt blocking member can be brought to the unblocked position and the bolt can be brought to the unlocked position by one and the same actuator, i.e. the pivotable cam.
- The invention provides in a second aspect a building locking system comprising: at least one lock system according to the invention and/or embodiments thereof and a lock control unit couplable to the lock system and enabled to actuate the electromechanical actuator of the lock system.
- With such system, the advantages of the invention can be applied to a building or a part thereof and the lock system or lock systems can be controlled at a central point.
-
- Figure 1 A
- shows a locked in a lock position;
- Figure 1 B
- shows a lock in an unlocked position;
- Figure 2
- shows lock cylinder;
- Figure 3 A
- shows lock moving to a lock position;
- Figure 3 B
- shows lock further moving to a lock position;
- Figure 4 A
- shows a lock in an unlocked position in more detail;
- Figure 4 B
- shows a detail of a lock in an unlocked position;
- Figure 4 C
- shows a detail of a lock in a locked position; and
- Figure 5
- shows a lock system for a building.
-
Figure 1A and Figure 1B show alock system 100 comprising acasing 110, abolt 120, a blockingtumbler shaft 130, anunblocking tumbler shaft 140, anelectromagnet 150 and a lock cylinder holding opening 102 for receiving a lock cylinder.Figure 2 shows alock cylinder 200 comprising acylinder housing 202, akey slit 208 and acylinder cam 204 comprising acylinder notch 206. For operating thelock cylinder 200, a key is stuck in thekey slit 208. If the combination of the key fits the combination of thelock cylinder 200, the key can be turned, resulting in turning thecylinder cam 204 with thecylinder notch 206. Thelock cylinder 200 can be received by the lock cylinder holding opening 102. - The
bolt 120 is slidable from a locked position as depicted infigure 1A wherein thebolt 120 is partially located outside thelock casing 110 and an unlocked position as depicted inFigure 1B wherein thebolt 120 is fully comprised by the casing. Thelock system 100 is preferably fit in a door, with thebolt 120 engaging with a hole in a doorpost for locking the door. The door is locked with thebolt 120 is in the locked position and the door is unlocked with thebolt 120 in the unlocked position or in any case substantially comprised by thelock casing 110 that thebolt 120 is not in the hole of the doorpost anymore. - The
bolt 120 comprises abolt slit 122 fitting around abolt holding pin 124 that is fixed to thecasing 110. Thebolt holding pin 124 allows thebolt 120 to slide or move linearly from left to right and vice versa. Thebolt 120 comprises abolt spring pin 128 on which abolt spring 126 exerts a spring force, biasing thebolt 120 in the unlocked position. Thebolt spring 126 is attached to thecasing 100. Thebolt 120 also comprises abolt recess 129 in which thenotch 206 of thelock cylinder 200 fits. This enables thebolt 120 from being moved from the unlocked position to the locked position and back by turning thecam 204 by means of a key. - The blocking
tumbler shaft 130 comprises a blocking tumbler slit 132 fitting around a blockingtumbler holding pin 134 that is fixed to thecasing 110. The blockingtumbler holding pin 134 allows the blockingtumbler shaft 130 to slide or move linearly up and down. The blocking tumbler shaft comprises a blockingtumbler spring pin 138 on which a blockingtumbler spring 136 exerts a spring force, biasing the blockingtumbler shaft 130 in a blocking position as shown byFigure 1A . The blockingtumbler spring 136 is attached to thecasing 100. - In the blocking position, the blocking
tumbler shaft 130 blocks thebolt 120 from moving to the unlocked position towards which it is biased by thebolt spring 126. In the unlocked position of thebolt 120, thebolt 120 blocks the blockingtumbler shaft 130 from moving to the blocking position of the blocking tumbler shaft 130.The blockingtumbler shaft 130 further comprises an unblocking element 139 (drawn in intermitted lines for reasons of clarity). The unblockingelement 139 is viewed from the top plane ofFigure 1A provided on top of thebolt 120; in use the unblockingelement 139 is located parallel to thebolt 120. - The unblocking
tumbler shaft 140 comprises an unblocking tumbler slit 142 fitting around an unblockingtumbler holding pin 144 that is fixed to thecasing 110. The unblockingtumbler holding pin 144 allows the unblockingtumbler shaft 140 to slide or move linearly from left to right and vice versa. The unblockingtumbler shaft 140 held in a blocking position by theelectromagnet 150 that attracts the unblockingtumbler shaft 140 when energised. This position is depicted byFigure 1A . The unblockingtumbler shaft 140 is biased towards an unblocking position as depicted byFigure 1B by an unblockingtumbler spring 146. The unblockingtumbler spring 146 is attached to thecasing 100. - If the
electromagnet 150 changes from the energised state to a de-energised state by interruption of a supply current to theelectromagnet 150, the unblockingtumbler shaft 140 moves from the blocking position depicted byFigure 1A to the unblocking position depicted byFigure 1B by virtue of the force exerted by the unblockingtumbler spring 146. With the unblockingtumbler shaft 140 moving towards the unblocking position, an upperdiagonal side 149 of the unblockingtumbler shaft 140 pushes against the lower right corner of the blockingtumbler shaft 130. - This results in the blocking
tumbler shaft 130 to be pushed upwards, towards the unblocking position of the blockingtumbler shaft 130 as depicted byFigure 1B . So the horizontal movement of the unblockingtumbler shaft 140 is translated to a vertical movement of the blockingtumbler shaft 130 with the upperdiagonal side 149 acting as a translation element. With the blockingtumbler shaft 130 pushed in the unblocking position, thebolt 120 is not blocked anymore. This enables thebolt 120 to move to the unlocked position by virtue of the force exerted by thebolt spring 126. - In this way, changing the state of the
electromagnet 150 from the energised state to the de-energised state by interrupting current supply results in unlocking of thelock system 100. Because the unblockingtumbler shaft 140 is kept in the unblocked position by the unblockingtumbler spring 146, the blockingtumbler shaft 130 is kept in the unblocked position. With the blockingtumbler shaft 130 blocked in the unblocked position, the blockingtumbler shaft 130 is not able to block thebolt 120 in the locked position. - So when the
bolt 120 is moved from the unlocked position to the locked position by turning thecylinder cam 204 by means of a key, thebolt 120 will move back to the unlocked position by virtue of the force exerted by thebolt spring 126. This means that with the unblockingtumbler shaft 140 in the unblocking position, thelock system 100 cannot be locked. For thelock system 100 to be locked again, the unblockingtumbler shaft 140 has to be moved back to the blocking position. - In one embodiment, the unblocking
tumbler shaft 140 cannot be moved back to the unblocking position by energising theelectromagnet 150. This is because the magnetic field is at the distance between the unblockingtumbler shaft 140 and theelectromagnet 150 not strong enough to counter the force exerted by the unblockingtumbler spring 146. -
Figure 3A depicts thelock system 100 where thecylinder cam 204 with thecylinder notch 206 is turn a quarter round counter-clockwise. In this position, the unblockingtumbler shaft 140 is slid back to the unblocking position. If theelectromagnet 150 is energised, the unblockingtumbler shaft 140 is kept in the unblocking position. Subsequently, thecylinder cam 204 is turned another quarter counter-clockwise as depicted inFigure 3B . -
Figure 3B depicts thecylinder notch 206 having been displaced in thebolt recess 129, taking along thebolt 120 towards the locked position. Turning thecylinder cam 204 another half round counter-clockwise results in the bolt being slid further towards the locked position until the blockingtumbler shaft 130 is free to move to the blocking position. By virtue of the force exerted by the blockingtumbler spring 136, the blockingtumbler shaft 130 moves to the blocking position. With the blockingtumbler shaft 130 in the blocking position, thebolt 120 is kept in the locked position even when the cylinder notch is back to its original lower position. - Besides being unlocked by de-energising the
electromagnet 150, thelock system 100 can also be unlocked by means of a key engaged with thelockcylinder 200. Starting with the status of the lock system as depicted byFigure 1A , the key in thelock cylinder 200 is turned half a round clockwise. This results in thecylinder cam 204 with thecylinder notch 206 engaging with thebolt recess 129, taking along thebolt 120. This is depicted byFigure 3B . - Before the
bolt 120 is taken along, the blockingtumbler shaft 130 is to be moved in the unblocking position. While turning thecylinder cam 204 clockwise, thecylinder notch 206 also engages with the unblockingelement 139. The unblockingelement 139 is moved upward and with that movement, the fullblocking tumbler shaft 130 by which theunblocking element 139 is comprised, is moved upward towards the unblocking position. With the blockingtumbler shaft 130 in the unblocking position, thebolt 120 can be moved to the unlocked position by thecylinder cam 204 and thecylinder notch 206. -
Figure 4A shows alock system 400 comprising acasing 410 comprising a lockcylinder holding opening 402, abolt 420, a blockingtumbler shaft 430, an unblockingtumbler shaft 440, aspring latch 470, anelectromagnet 450, alatch coupling tumbler 488, alatch operating lever 472, aconnector 490 and asensor 492. Thelock system 400 is shown in unlocked position. The lock system is operable with a key by inserting thelock cylinder 200 in the lockcylinder holding opening 402. - The
bolt 420 is shown in an unlocked position, with thebolt 420 substantially fully comprised by thecasing 410. Dotted lines indicate the position of thebolt 420 in locked position, in which position thebolt 420 is partly located outside thelock casing 410. Thebolt 420 is biased towards the unlocked position by abolt spring 426, engaging with abolt spring pin 428. - The blocking
tumbler shaft 430 is depicted in an unblocking position. The blockingtumbler shaft 430 is configured to be linearly slidable from the position depicted byFigure 4A to a lower position and vice versa. This movement is enabled by three blockingtumbler slits 432 engaging with three blocking tumbler holding pins 434. In a lower - blocking - position, the blockingtumbler shaft 430 blocks thebolt 420 in the locked position. If thebolt 420 is in the unlocked position, it blocks the blockingtumbler shaft 430 from moving to the blocking position. - The blocking
tumbler shaft 430 is biased towards the blocking position by a blockingtumbler spring 436. This results in the blockingtumbler shaft 430 to move to the blocking position if thebolt 420 is in the locked position, provided the blockingtumbler shaft 430 is not blocked by other elements of thelock system 400, as will become apparent from the rest of the description. In the blocking position, the blockingtumbler shaft 430 blocks thebolt 420 from moving to the unlocked position. - The unblocking
tumbler shaft 440 is depicted in an unblocking position. The unblockingtumbler shaft 440 is configured to be linearly slidable from the position depicted byFigure 4A to a more right position and vice versa. This movement is enabled by an unblocking tumbler slit 442 engaging with an unblockingtumbler holding pin 444. In the unblocking position, the unblockingtumbler shaft 440 blocks the blockingtumbler shaft 430 in the unblocking position. - This is in particular effectuated by means of an unblocking
tumbler 460. The unblockingtumbler 460 is pivotably connected to the unblocking tumbler shaft by means of atumbler coupling pin 464 and pivotably connected to the casing by means of acase coupling pin 462. The unblockingtumbler 460 also comprises an unblockinglever pin 466 engaging with the lower side of the blockingtumbler shaft 430 for moving the blockingtumbler shaft 430 to the unblocking position and keeping the blockingtumbler shaft 430 in that position. - In the blocking position, wherein the unblocking
tumbler shaft 440 is located more to the right than depicted onFigure 4A , the unblockingtumbler 460 is pivoted clockwise. The unblockingtumbler 460 is pivoted around thetumbler coupling pin 464, resulting in the unblockinglever pin 466 to be in a lower position in which it does not block the blockingtumbler shaft 430 anymore from moving to the blocking position anymore. With the blockingtumbler shaft 430 not being blocked by the unblockinglever pin 466, the blockingtumbler shaft 430 is enabled to move to the blocking position if thebolt 420 is in the locked position. - In common use, the unblocking
tumbler shaft 440 is in the blocking position, i.e. in a position more to the right than depicted onFigure 4A . In this position of the unblockingtumbler shaft 440, the unblockingtumbler shaft 440 is kept in place by theelectromagnet 450 that is in a normal state energised. In energised state, theelectromagnet 450 has a current flowing through a coil comprised by theelectromagnet 450, resulting in a magnetic flux in a core comprised in the coil. In this position of the unblockingtumbler shaft 440, the unblockingtumbler 460 is swivelled to the right over thetumbler coupling pin 464 compared to the position depicted byFigure 4A . - The
bolt 420 is in common use either in the locked or unlocked position. The blockingtumbler shaft 430 is in common use in a position corresponding to the position of the bolt. This means that if thebolt 420 is in the locked position, the blockingtumbler shaft 430 is in the blocking position and if thebolt 420 is in the unlocked position, the blockingtumbler shaft 430 is in the unblocking position. - In case of an emergency, the current supply to the
electromagnet 450 is interrupted. The current supply can either be interrupted by a central control system, due to fire consuming the power supply cable or by other causes. Interruption of current supply to theelectromagnet 450 results in loss of magnetic flux and therefore in loss of magnetic force exerted on the unblockingtumbler shaft 440. The unblockingtumbler shaft 440 is biased to the unblocking position by an unblockingtumbler spring 446. By virtue of this biasing force, the unblockingtumbler shaft 440 moves to the left. - The moving of the unblocking
tumbler shaft 440 to the left results in the unblockingtumbler 460 pivoting to the left in a more upright position. In this way, horizontal movement of the unblockingtumbler shaft 440 is translated to movement in a direction that has a component that is perpendicular to the movement of the unblockingtumbler shaft 440, with the unblockingtumbler 460 acting as translation element. In particular, this perpendicular component of movement is in the upward direction in the view ofFigure 4A , towards the blockingtumbler shaft 430. - If the
bolt 420 is in the locked position and thebolt blocking member 430 in the blocking position, the pivoting of the unblockingtumbler 460 will cause the unblockinglever pin 466 to engage with the lower side of the blockingtumbler shaft 430. The unblockinglever pin 466 moves towards the blockingtumbler shaft 430 and move the blockingtumbler shaft 430 to the unblocking position. Subsequently, by virtue of thebolt spring 426, thebolt 420 will move to the unlocked position. This will unlock a door in which thelock system 400 is fit. - As the unblocking
tumbler shaft 440 will be kept in the unblocking position, blocking the blockingtumbler shaft 430 from moving to the blocking position, thebolt 420 will either stay in the unlocked position or move directly back to the unlocked position. This is because the blocking tumbler shaft will not be able to move to the blocking position for blocking thebolt 420 to remain in the locked position. - If during interruption of the current supply to the
electromagnet 450 thebolt 420 is in the unlocked position, only the unblockingtumbler shaft 440 with the unblockingtumbler 460 will move to the unblocking position and other components will remain in their positions. - In one embodiment, the magnetic field provided by the
electromagnet 450 is not strong enough to attract the unblockingtumbler shaft 430 towards the electromagnet to bring it back to the blocking position. This means that even though current would be supplied again to theelectromagnet 450, the blockingtumbler shaft 430 would still be blocked in the unblocking position. This means that thelock system 400 cannot be blocked anymore. Therefore, the unblockingtumbler shaft 440 is at the upper left side aligned with the right side of the lockcylinder holding opening 402. - When the
lock system 400 is intended to be locked by means of a key, turning the key and with that thecam 204 with thenotch 206 of the lock cylinder fit in the lockcylinder holding opening 402 in a counter-clockwise direction, thenotch 206 will first engage with the upper left side of the unblockingtumbler shaft 430, moving the unblockingtumbler shaft 430 to the blocking position. Subsequently, by turning the key further counter-clockwise, thenotch 206 will engage with abolt recess 429, taking along thebolt 420 towards the locked position. - For unlocking the
lock system 400 with a key, thenotch 206 of thecam 204 is turned clockwise. In the locked position, thebolt recess 429 is located more to the left than depicted byFigure 4 And the blockingtumbler shaft 430 will be in a lower position. While turning thenotch 206 clockwise in an upward direction, thenotch 206 will engage with the lowerleft part 439 or unblocking member of the blockingtumbler shaft 430 and thebolt recess 429. The blockingtumbler shaft 430 will move to the unblocking position, allowing thebolt 420 to be moved to the unlocked position by thenotch 206 engaging with thebolt recess 429. - The
bolt 420 has abolt tumbler 424 connected to it that is pivotable over a bolttumbler connecting pin 425 that is connected to thecasing 410. The lower part of the bolt tumbler, below the bolttumbler connecting pin 425, engages with thesensor 492. Thesensor 492 is a micro switch. With thebolt 420 in the unlocked position, a button of thesensor 492 is pressed and with thebolt 420 in the locked position, the button of thesensor 492 is not pressed. In this way, the position of thebolt 420 can be detected. Sensor data can be read through theconnector 490. Furthermore, theconnector 490 also provides contacts for current supply to theelectromagnet 450. - As discussed, the
lock system 400 also comprises thespring latch 470. The spring latch is slidably movable to a locked position as depicted inFigure 4 And an unlocked position in which thespring latch 470 is fully comprised in thecasing 410. Thespring latch 470 is biased towards the locked position by alatch spring 476, engaging with afirst latch protrusion 471. If thebolt 420 is in the unlocked position, alatch tumbler shaft 422 can be slid from the position depicted byFigure 4A to a higher position. This is done by thenotch 206 of thelock cylinder 200 inserted in the lockcylinder holding opening 402, turning thecam 204 clockwise. The notch engages with a latchtumbler shaft notch 423, lifting thelatch tumbler shaft 422. Thelatch tumbler shaft 422 engages with a lower side of thelatch coupling tumbler 488. As a result of this, thelatch coupling tumbler 488 pivots clockwise and the upper part of thelatch coupling tumbler 488 engages with thefirst latch protrusion 471. This, in turn, results in thespring latch 470 to move to the unlocked position. - The
spring latch 470 is also operable by a handle fit in a square springlatch operating hole 481. The springlatch operating hole 481 is provided in aflange 482 that is pivotably operable by turning a handle fit in the springlatch operating hole 481. Theflange 482 is provided with aflange recess 483 in which acoupling notch 485 of acoupling catch 484 is accommodated. Thecoupling catch 484 is coupled to thelatch operating lever 472. The upper part of the latch operating lever is arranged to engage with asecond latch protrusion 473. - Swivelling a handle fit in the spring
latch operating hole 481 clockwise results in swivelling of theflange 482. Due to theflange 482 being coupled to thecoupling catch 484 via theflange recess 483 and thecoupling notch 485, thecoupling catch 484 is also swivelled in a clockwise direction. Thecoupling catch 484 takes along thelatch operating lever 472 which in turn slides thespring catch 470 towards the unlocked position. Releasing the handle will result in thespring latch 470 sliding back to the locked position by virtue of the force exerted by thelatch spring 476 on thefirst latch protrusion 471. - If the
bolt 420 is in the locked position, the flange and thecoupling catch 484 are decoupled. Thecoupling catch 484 is coupled to acoupling tumbler shaft 487. If thebolt 420 is in the unlocked position as depicted byFigure 4A , thecoupling tumbler shaft 487 is in the lower position as depicted byFigure 4A . If thebolt 420 moves to the locked position, anupper protrusion 427 provided on the upper side of thebolt 420 moves to the left, viewed from the drawing plane, engaging with a coupling tumbler that in turn engages with a lower left part of thecoupling tumbler shaft 487. As a result of this, thecoupling tumbler shaft 487 is moved up. -
Figure 4B and Figure 4C depict this action in further detail.Figure 4B depicts thebolt 420 in the unlocked position. Thecoupling tumbler 438 rests with its lower right corner against theupper protrusion 427. Thecoupling tumbler shaft 487 rests with its lower part upon acoupling tumbler protrusion 437. Thecoupling tumbler 438 is pivotably mounted on a blockingtumbler holding pin 434. - Upon the
bolt 420 moving to the locked position, theupper protrusion 427 acts upon the lower right part of thecoupling tumbler 438, resulting in a pivoting action of thecoupling tumbler 438. This is depicted inFigure 4C . The pivoting action yields an upward movement of thecoupling tumbler protrusion 437, moving in turn thecoupling tumbler shaft 487 upward. Though this construction is considered to be effective, thecoupling tumbler 438 may be omitted in other embodiments, where the upper protrusion directly engages with the lower left part of thecoupling tumbler shaft 487. - The
coupling tumbler shaft 487 is coupled to thecoupling catch 484 via a coupling pin provided on the coupling catch that fits in acoupling slit 488 provided in thecoupling tumbler shaft 487. With thecoupling tumbler shaft 487 moving up, thecoupling catch 484 is moved up as well. This results in thecoupling notch 485 being lifted from theflange recess 483, thus removing the coupling between theflange 482 on one side and thecoupling catch 484 and thespring latch 470 on the other. Operation of a handle fit in the springlatch operating hole 481 will have not effect than the mere swivelling of the handle and theflange 482. - The coupling between the
flange 482 and the handle in the spring latch operating hole is reinstated again upon thebolt 420 moving back to the unlocked position, with theupper protrusion 427 sliding back to the left. This allows thecoupling tumbler shaft 487 to slide down again to the position depicted byFigure 4A . With thecoupling tumbler shaft 487 moving down, thecoupling notch 485 falls back in theflange recess 483. This means that thecoupling catch 484 and operation of thespring catch 470 is coupled to the handle fit in the springlatch operating hole 481 again. -
Figure 5 discloses abuilding locking system 500 fit in a building. Thebuilding locking system 500 comprises a plurality oflocks systems 502 fit in the building. Thelock systems 502 may be lock systems as discussed before or other embodiments of the lock system according with the invention. Thebuilding locking system 500 further comprises alock control unit 510 comprising asensor communication circuit 512, alock actuating circuit 514, acontrol circuit 516 and ageneral communication unit 518. Thecontrol circuit 516 is operatively coupled to thesensor communication circuit 512, thelock actuating circuit 514 and thegeneral communication unit 518. The sensors and in particular the micro switches of thelock systems 502 are coupled to thesensor communication unit 512 and the actuators like electromagnets of thelock systems 502 are coupled to thelock actuating circuit 514. - By means of the
sensor communication unit 512, the lock control unit is enabled to detect the positions of bolts and blocking tumbler shafts of thelock systems 502. By means of thelock actuating circuit 514, the electromagnets of thelock systems 502 can be actuated. Thegeneral communication unit 518 allows thelock control unit 510 to be coupled to a fire detection system or another emergency detection system. Additionally or alternatively, thegeneral communication unit 518 enables thecontrol unit 510 to be coupled to other computer or control units, either dedicated to a special function or general purpose. Thelock control unit 510 normally operates in a normal state, if there is no emergency situation. In this state,lock control unit 510 is in standby state and thelock systems 502 are not operated. - Upon detection and communication of an emergency like a fire, the
lock control unit 510 switches to an emergency state in which the electromagnets of thelock systems 502 are operated to unlock thelock systems 502. As discussed before, this is done by de-energising the electromagnets by interrupting the current supply to those electromagnets to allow bolts of thelock systems 502 to be retracted. Correct execution of this action is verified by reading out positions of various sensors and in particular micro switches in thelock systems 502 detecting positions of bolts and/or positions of blocking tumbler shafts. This operation of thebuilding lock system 500 is controlled by thecontrol circuit 516 that can be a microcontroller, a microprocessor or a similar control unit. - A person skilled in the art will readily appreciate that various parameters disclosed in the description may be modified and that various embodiments disclosed and/or claimed may be combined without departing from the scope of the invention as defined by the appended claims.
- It is stipulated that the reference signs in the claims do not limit the scope of the claims, but are merely inserted to enhance the legibility of the claims.
Claims (10)
- Lock system (100, 400) comprising a mechanical lock comprising:a) a lock casing (110, 410) arranged for receiving a locking mechanism (200) comprising a pivotable cam (204);b) a first bolt (120, 420) comprised by the lock casing, the first bolt being movable by the pivotable cam between an unlocked position in which the first bolt is substantially fully comprised by the lock casing and a locked position in which the first bolt is partially located outside the casing;c) a bolt blocking member (130, 430) movable between a blocked position in which the blocking member blocks the first bolt in the locked position and an unblocked position in which movement of the first bolt is not blocked by the bolt blocking member;d) a coupling member (140, 440) being movable between a first position and a second position; said coupling member being arranged to move the bolt blocking member from the blocked position to the unblocked position by moving from the first position to the second position;e) an electromechanical actuator (150, 450);the lock further comprising:- a bolt biasing element (126, 426) for biasing the first bolt towards the unlocked position; and- a coupling biasing element (146, 446) for biasing the coupling member to the second position;wherein the electromechanical actuator is couplable to the coupling member, the coupling member being movable between the first position in which it is being held by an electromagnetic force provided by the electromechanical actuator if the electromechanical actuator is energised, and the second position if the electromechanical actuator is not energised; characterised in that said coupling member is movable from the second position to the first position by the pivotable cam.
- Lock system according to claim 1, wherein the coupling member is movable in a substantially linear way that is substantially perpendicular to the movement of the bolt blocking member and the coupling member comprises:a) a main coupling part (140,440) movable substantially perpendicularly to the movement of the bolt blocking member; andb) a translation coupling element (149, 460) for translating a movement of the main part to a movement of the translation element having a component perpendicular to a movement of the main part.
- Lock system according to claim 2, wherein the translation coupling element (460) is pivotably mounted on the main coupling part (440) and a linear movement of the main coupling part results in a pivoting movement of the translation coupling element.
- Lock system according to claim 3, wherein the translation coupling element (460) is pivotably coupled to the lock casing.
- Lock system according to claim 1, wherein the bolt blocking member (130, 430) comprises an unblocking member (139, 439) arranged to be engaged by the pivotable cam (204) for moving the bolt blocking member to the unblocked position.
- Lock system according to claim 1, further comprising blocking biasing element (136, 436) for biasing the bolt blocking member (130, 430) to the blocked position enabling the first bolt to be blocked upon moving to the locked position.
- Lock system according to claim 1, wherein the first bolt blocks in the unlocked position the bolt blocking member from moving to the blocked position.
- Lock system according to claim 1, wherein the first bolt and the bolt blocking member are movable in a substantially linear way and the directions of movement of the first bolt and the bolt blocking member are substantially perpendicular to one another.
- Lock system according to claim 1, wherein the lock casing further comprises a second bolt (470) movable between an unlocked position in which the second bolt is substantially fully comprised by the lock casing (410) and a locked position in which the second bolt is partially located outside the casing, the second bolt being movable by operating a spindle (482) if the second bolt and the spindle are connected, the second bolt and the spindle being connected by a spindle connecting member (485) which is connected to the bolt blocking member and which spindle connecting member connects the second bolt and the spindle if the bolt blocking member is in the unblocked position and which spindle connected member does not connect the second bolt and the spindle if the bolt blocking member is in the blocked position.
- Building locking system (500) comprising:a) at least one lock system (100, 400) according to claim 1; andb) a lock control unit (510) couplable to the lock system and enabled to actuate the electromechanical actuator of the lock system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20100174545 EP2423414B1 (en) | 2010-08-30 | 2010-08-30 | Lock system and building locking system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20100174545 EP2423414B1 (en) | 2010-08-30 | 2010-08-30 | Lock system and building locking system |
Publications (2)
Publication Number | Publication Date |
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EP2423414A1 EP2423414A1 (en) | 2012-02-29 |
EP2423414B1 true EP2423414B1 (en) | 2013-05-29 |
Family
ID=43532692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20100174545 Not-in-force EP2423414B1 (en) | 2010-08-30 | 2010-08-30 | Lock system and building locking system |
Country Status (1)
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EP (1) | EP2423414B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104499831A (en) * | 2014-12-11 | 2015-04-08 | 东莞市德曼木业有限公司 | Electronic lock driven by motor and electromagnetic valve |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2677098T3 (en) * | 2012-06-22 | 2018-04-30 | Eldomat Innovative Sicherheit Gmbh | Closing device with emergency opening |
MX2015012310A (en) * | 2013-03-13 | 2016-07-21 | Spectrum Brands Inc | Interconnected locking system. |
WO2015010670A1 (en) * | 2013-07-25 | 2015-01-29 | Eldomat Innovative Sicherheit Gmbh | Closing device having emergency opening system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL191126C (en) * | 1984-12-12 | 1995-02-01 | Brondool B V I O | Lock with external bolt release. |
GB8613696D0 (en) * | 1986-06-05 | 1986-07-09 | Chubb Lips Nederland Bv | Locks |
GB2230550B (en) * | 1989-03-18 | 1993-02-10 | Walter Wilson Hugh Clarke | Electromagnetic door lock |
DE19708251A1 (en) * | 1996-09-16 | 1998-03-19 | Simons & Vos Identifikationssy | Electrically operated lock |
-
2010
- 2010-08-30 EP EP20100174545 patent/EP2423414B1/en not_active Not-in-force
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104499831A (en) * | 2014-12-11 | 2015-04-08 | 东莞市德曼木业有限公司 | Electronic lock driven by motor and electromagnetic valve |
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EP2423414A1 (en) | 2012-02-29 |
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