EP4183958A1 - Türschloss mit schlosszustandsbestimmung - Google Patents

Türschloss mit schlosszustandsbestimmung Download PDF

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Publication number
EP4183958A1
EP4183958A1 EP21306598.0A EP21306598A EP4183958A1 EP 4183958 A1 EP4183958 A1 EP 4183958A1 EP 21306598 A EP21306598 A EP 21306598A EP 4183958 A1 EP4183958 A1 EP 4183958A1
Authority
EP
European Patent Office
Prior art keywords
handle
doorlock
axis
rotation
ring
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.)
Pending
Application number
EP21306598.0A
Other languages
English (en)
French (fr)
Inventor
Clémence GERARD
Edouard KAUFFMANN
Minglai CHEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Netatmo SAS
Original Assignee
Netatmo SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Netatmo SAS filed Critical Netatmo SAS
Priority to EP21306598.0A priority Critical patent/EP4183958A1/de
Publication of EP4183958A1 publication Critical patent/EP4183958A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B41/00—Locks with visible indication as to whether the lock is locked or unlocked
    • 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
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0615—Cylinder locks with electromagnetic control operated by handles, e.g. by knobs
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0067—Monitoring

Definitions

  • the invention relates to the field of smart doorlock and concerns a doorlock configured to switch between a locked state and an unlocked state.
  • the invention also concerns a method for determining a locked state and an unlocked state of a doorlock.
  • Electromechanical lock and key with identification code are widespread. They enable authorized key holders to have access to locked rooms if the identification code of the key, or the shape of the key, corresponds to a predetermined code, or a predetermined shape, in relation with the electromechanical lock.
  • the key may be an ordinary looking key to insert into the lock or an access badge to pass in front of the lock.
  • the electromechanical lock comprises a processor configured to compare the identification code of the key with the predetermined code. If the identification code corresponds to the predetermined code, the electromechanical lock switches from its locked state to its unlocked state.
  • Commonly locks are formed with a body that can be easily unscrewed by a locksmith to facilitate rekeying.
  • the body has the function to lock and unlock the lock.
  • a lock body may be found under the form of a European cylinder (defined by the DIN18251).
  • a European cylinder is a type of lock cylinder.
  • a body may not be in the form of a cylinder.
  • a lock body may be inserted into a lock or a mortise lock or a slot-in lock. This function offers the advantage of allowing its change without altering the boltwork hardware. Removing the body typically requires only loosening a set screw, then sliding the body from the boltwork.
  • a lock mechanism, or doolock, 5 has a deadbolt 6 that may be entirely positioned inside the housing of the door 7 in the unlocked state.
  • this deadbolt6 projects beyond the door 7 and is inserted into a slot of the door frame (not represented), thus locking the door to the frame.
  • the movement of the deadbolt 6 can be mechanically obtained, for example by a rotation of a key inserted into the doorlock or by rotation of a handle 8, preferably an indoor handle.
  • the rotation of the key clockwise, respectively anticlockwise, causes a pin to rotate accordingly, thereby making the deadbolt 6 translate either outside the door to be inserted into the slot of the door frame, or inside the door.
  • the door may comprise a handle 9 to activate the latch 2 of the door. This handle 9 (together with the latch 2) enables to open and close the door in its unlocked state, to enter or leave the room.
  • the rotation of the indoor handle enables to make the deadbolt translate between various positions, from a position totally inserted in the door to a position where the deadbolt extends beyond the door, so as to be inserted into the corresponding slot of the door frame, and vice versa depending on the direction of the rotation of the indoor handle (clockwise and/or anticlockwise).
  • a solution to overcome this drawback is to provide a doorlock enabling to retrieve the lock status of the doorlock by analyzing the rotation and the direction of the rotation of the handle.
  • the subject of the invention is a doorlock configured to switch between a locked state and an unlocked state, the doorlock extending along a first axis between a first end and a second end, the doorlock comprising:
  • the doorlock of the invention comprises at least two magnets, two adjacent magnets of the at least two magnets forming an angular portion from the first axis with a predefined angle.
  • the processor is further configured to send to a remote control through a communication link the angular displacement of the handle and the direction of the rotation of the handle around the first axis.
  • each of the at least two magnets comprises a north pole and a south pole superimposed on the north pole according to a second axis parallel to the first axis, respectively in a first direction and in a second direction, opposite to the first direction, for two adjacent magnets of the at least two magnets.
  • the at least two magnets are distributed regularly on the ring.
  • the processor comprises a memory configured to store a position of the handle.
  • the processor is configured to read an identification code of an identification key and configured to cause the doorlock to switch from the locked state to the unlocked state if the identification code of the identification key is an authorized code of the doorlock.
  • the invention also relates to a method for determining a locked state and an unlocked state of a doorlock, the doorlock extending along a first axis between a first end and a second end, the doorlock comprising:
  • the method of the invention comprises a step of storing a position of the handle.
  • the method of the invention further comprises a step of determining the locked state and the unlocked state of the doorlock from the stored position and the angular displacement of the handle and the direction of the rotation of the handle.
  • a door is an opening unit enabling the access to a room (or from a room to the outside) through an aperture.
  • the door is connected to a door frame that frames the aperture and is fixed to the walls around the aperture.
  • the door In an unlocked state of the door, the door is mobile in relation to the door frame, typically mobile in rotation around doors hinges (or in translation in the case the door and the door frame are configured to let the door slide through a part of the door frame and into the wall).
  • the door may be in an open configuration or a closed configuration. In the closed configuration, the door covers the aperture (i.e. no one can go through the aperture).
  • the door is equipped with a lock mechanism.
  • the lock mechanism has a latch that is either inserted into a slot of the door frame (the door is closed) or retracted inside the door (the door is no longer attached to the door frame and may be open). In the closed configuration, the latch is inserted into the slot of the door frame.
  • a lock clutch is connected to the latch.
  • the lock clutch is usually engaged with both the indoor and outdoor door knobs. This enables a user to activate the lock clutch to make the latch move by moving one of the door knobs or handles. Therefore a user has to move a door knob of the door to switch from the closed configuration of the door to the open configuration of the door. Indeed, the lock clutch being engaged with the knob, the movement of the knob leads to the movement of the latch. Moving the door knob makes the latch retract into the door. The user can pull or push the door to open it.
  • the lock mechanism can be either in a locked state or an unlocked state.
  • the unlocked state corresponds to the case discussed above.
  • the door may be open by a user when activating a door knob and pushing or pulling the door.
  • the lock mechanism has a deadbolt entirely positioned inside the locking mechanism in the unlocked state. In the locked state, this deadbolt projects beyond the lock mechanism and is inserted into a slot of the door frame, thus locking the door to the frame.
  • a user has to rotate the key with the corresponding rotation of the key inside the lock mechanism, or rotate the indoor handle with the corresponding rotation (which means with the adapted angular displacement in the corresponding direction).
  • a multi-point lock also known as a safety lock, provides extra security as it distributes the locking points (i.e. a plurality of deadbolts) over the entire door.
  • the most common multi-point lock is the three-point lock composed of a main deadbolt in the center and two other bolts at the top and at the bottom actuated by a rod.
  • Some multi-point locks may have up to ten locking points.
  • Figure 1 schematically represents a lock mechanism of a door of the prior art and was discussed in the introduction.
  • FIG. 2 schematically represents a doorlock 10 according to the invention.
  • the doorlock 10 is configured to switch between a locked state and an unlocked state.
  • the doorlock extends along a first axis X between a first end 11 and a second end 12.
  • the doorlock comprises a handle 13 positioned at the first end 11 of the doorlock, the handle 13 being mobile in rotation around the first axis X.
  • the doorlock comprises a pin 14 positioned between the first end 11 and the second end 12 of the doorlock, the pin 14 extending radially from the first axis X, the pin being mobile in rotation around the first axis X, and configured to be rotatably driven by a rotation of the handle 13 or by a rotation of an associated key inserted into the outdoor handle at the second end 12, thereby making the doorlock switch between the locked state and the unlocked state.
  • the doorlock 10 may be configured to cooperate with at least one identification key 17.
  • the doorlock 10 may comprise at its second end 12 a key hole 16 shaped to accept insertion of the identification key 17. A rotation of the identification key may lead to the rotation of the pin, thereby making the doorlock switch between the locked state and the unlocked state.
  • the doorlock 10 may comprise a processor configured to read an identification code of the identification key 17 and configured to cause the doorlock 10 to switch from the locked state to the unlocked state if the identification code of the identification key 17 is an authorized code of the doorlock 10.
  • the processor of the doorlock 10 may comprise an algorithm that is able to generate a plurality of codes.
  • the identification key 17 When inserting the identification key 17 into the key hole or having the identification key 17 or a smartphone close to the doorlock 10, (i.e. until about 10 meters of the doorlock, for example thanks to the BLE technology (acronym of Bluetooth TM Low Energy technology)), one of the code generated by the algorithm of the processor is transmitted from the processor to the identification key 17 when this one is inserted into the key hole 16.
  • the processor should receive from the identification key 17 an authorized code, that is to say an identification code corresponding to the code transmitted by the processor.
  • the identification key 17 There is a communication between the doorlock 10 and the identification key 17. And if the processor receives from the identification key 17, as a response to its code, an authorized code, the identification key 17 is considered as an authorized key for switching between the locked state and the unlocked state.
  • the communication between the identification key and the doorlock may use a direct electrical contact, an RF communication link (NFC TM , Bluetooth TM , Wi-Fi TM , Zigbee TM or other low power RF communication standard or proprietary means), an optical or an acoustical communication means.
  • RF communication link NFC TM , Bluetooth TM , Wi-Fi TM , Zigbee TM or other low power RF communication standard or proprietary means
  • FIG. 3 schematically represents a doorlock according to the invention.
  • the doorlock 10 comprises a PCB 18 (Printed Circuit Board) secured in an immovable manner inside the handle 13.
  • the doorlock 10 comprises a ring 19 centered around the first axis X, and fixed to the handle 13 so that the rotation of the handle 13 makes the ring 19 rotate.
  • a clockwise rotation of a defined angle of the handle 13 around the first axis X makes the ring 19 rotate clockwise of the same defined angle around the first axis X.
  • an anticlockwise rotation of another defined angle of the handle 13 around the first axis X makes the ring 19 rotate anticlockwise of the same another defined angle around the first axis X.
  • the doorlock 10 comprises at least one magnet, but preferably at least two magnets 20 positioned on the ring 19.
  • the doorlock 10 comprises two reed switches 23 positioned on the PCB 18, preferably facing the ring 19.
  • a reed switch is an electrical switch operated by an applied magnetic field. The reed switch is closed when a magnet is closed of the reed switch and the reed switch is open when the magnet is too far. This principle is described in detail below.
  • the PCB 18 comprises a processor configured to determine an angular displacement of the handle 13 and a direction of the rotation of the handle 13 around the first axis X, based on an electric field generated by the two reed switches 23 when the handle 13 is actuated in rotation around the first axis X.
  • Figure 4 schematically represents the working principle of a reed switch included in a doorlock according to the invention.
  • a reed switch is an electrical switch operated by an applied magnetic field. The reed switch is closed when a magnet is closed of the reed switch (on the left hand side of the figure) and the reed switch is open when the magnet is too far (on the right hand side of the figure).
  • the operating mode of the reed switch described above is an example of a so-called "normally opened” reed switch (i.e. a reed switch that is normally in its open state and is closed when an magnetic field is applied in its vicinity).
  • the invention similarly applies to a so-called “normally closed” reed switch (i.e. a reed switch that is normally in its closed state and is open when a magnetic field is applied in its vicinity).
  • the ring rotates similarly and so do the magnets 20 that pass in front of the reed switches positioned on the PCB.
  • the rotation of the handle leads to the approach and distancing of a magnet in regards of a reed switch. Each reed switch changes accordingly its state between open and close.
  • FIG. 5 schematically represents the ring 19 of the doorlock according to the invention.
  • each of the at least two magnets 20 comprises a north pole and a south pole superimposed on the north pole according to a second axis Y parallel to the first axis X, respectively in a first direction and in a second direction, opposite to the first direction, for two adjacent magnets 20 of the at least two magnets.
  • This alternance of the north and south pole ensures that between two adjacent magnets the magnetic field is zero, which causes the reed switch to open.
  • This technical feature ensures all reed switches are open when passing between two magnets. The reed switch is closed when it approaches a magnet. Nevertheless, this alternance of the poles is not compulsory.
  • Figure 6 schematically represents the principle of the doorlock according to the invention.
  • the magnets 20 are labelled from 1 to 6 and the reed switches 23 are labelled A and B and installed on the main PCB.
  • the processor of the doorlock is configured to analyse the angular distance of the rotation (how many degrees compared to the previous position) and its direction (clockwise or anti-clockwise), as explained thereafter.
  • Figure 7 schematically represents the principle of the doorlock according to the invention.
  • This figure depicts a non-limitative example of the ring having 6 magnets.
  • the invention applies similarly with less than 6 magnets, for example 2 or 3, or with more than 6 magnets, for example 10 or 12.
  • the magnets are preferably distributed regularly on the ring.
  • the doorlock 10 comprises at least two magnets 20 positioned on the ring 19.
  • two adjacent magnets 20 of the at least two magnets form an angular portion 21 from the first axis X with an angle 22 predefined by the position of the magnets.
  • the angle is 60°.
  • the angle 22 would be 30°.
  • the angle 22 may take other values depending on the position of the magnets 20 on the ring 19.
  • the two reed switches 23 are placed on the PCB 18, forming an angular portion from the first axis X with an angle 24.
  • the angle 24 is 45° in the depicted example, but it could have other values, for example 40° or 50°.
  • the magnets and reed switches have a 15° precision since there are 4 reed switch events for a 60° rotation.
  • the angle 22 may be less than the angle 24.
  • the values of the angles 22, 24 depend on the position of the magnets 20 on the ring 19, the distance of the PCB from the ring and the distance between between the reed switches. These geometrical parameters may be adapted according to the desired accuracy of the detection.
  • Figure 8 schematically represents the analysis of the direction of the rotation of the handle of the doorlock of the invention, based on the relative movement of the magnets passing in front of the two reed switches.
  • the indoor handle 13 is turned clockwise in one of these cases:
  • the indoor handle 13 is turned anti-clockwise in one of these cases:
  • Figure 9 represents an example of the reed switch states for a clockwise rotation of the handle of the doorlock of the invention.
  • the magnets are placed every 60 degrees on the ring of the doorlock, it means that during a 60° rotation, the two reed switches will measure four changes of state (4 events). This means that the indoor handle turns 15° for each event on reed switches (see figure 9 and figure 10 ).
  • Figure 10 represents an example of the reed switch states for an anticlockwise rotation of the handle of the doorlock of the invention.
  • analyzing the evolution of the signal indicates the direction of the rotation (clockwise and anticlockwise) and the angle of the rotation performed by the handle.
  • the processor of the doorlock may comprise a memory configured to store a position of the handle. After analyzing the evolution of the signal and determining the direction and the angle of the rotation, and based on the previously stored position of the handle, it is possible to determine an updated position of the handle, that can also be stored in the memory.
  • the processor may further be configured to send to a remote control through a communication link the angular displacement of the handle and the direction of the rotation of the handle around the first axis.
  • the processor may also calculate, based on the previous stored position of the handle, its angular displacement and the direction of the rotation whether the doorlock is in its locked or unlocked state. This information can be further sent to a remote control, for example to a smartphone via a web application.
  • Figure 11 represents a block diagram of the steps of a method for determining a locked state and an unlocked state of the doorlock 10 according to the invention. According to the invention, the method comprises following steps:
  • the method may further comprise a step 130 of storing a position of the handle.
  • the method may further comprise a step 140 of determining the locked state and the unlocked state of the doorlock from the stored position and the angular displacement of the handle and the direction of the rotation of the handle.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
EP21306598.0A 2021-11-17 2021-11-17 Türschloss mit schlosszustandsbestimmung Pending EP4183958A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21306598.0A EP4183958A1 (de) 2021-11-17 2021-11-17 Türschloss mit schlosszustandsbestimmung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21306598.0A EP4183958A1 (de) 2021-11-17 2021-11-17 Türschloss mit schlosszustandsbestimmung

Publications (1)

Publication Number Publication Date
EP4183958A1 true EP4183958A1 (de) 2023-05-24

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ID=78819957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21306598.0A Pending EP4183958A1 (de) 2021-11-17 2021-11-17 Türschloss mit schlosszustandsbestimmung

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EP (1) EP4183958A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005066440A1 (de) * 2003-12-31 2005-07-21 SCHÜCO International KG Überwachungsvorrichtung für fenstergriffe
JP2006118229A (ja) * 2004-10-22 2006-05-11 Sankyo Alum Ind Co Ltd 錠前の無施錠防止装置
JP2012144950A (ja) * 2011-01-14 2012-08-02 Miwa Lock Co Ltd 在室確認錠装置
US20190218826A1 (en) * 2016-10-19 2019-07-18 Dormakaba Usa Inc. Electro-mechanical lock core

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005066440A1 (de) * 2003-12-31 2005-07-21 SCHÜCO International KG Überwachungsvorrichtung für fenstergriffe
JP2006118229A (ja) * 2004-10-22 2006-05-11 Sankyo Alum Ind Co Ltd 錠前の無施錠防止装置
JP2012144950A (ja) * 2011-01-14 2012-08-02 Miwa Lock Co Ltd 在室確認錠装置
US20190218826A1 (en) * 2016-10-19 2019-07-18 Dormakaba Usa Inc. Electro-mechanical lock core

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