EP3985212A1 - Knauf für einen elektronischen schliesszylinder - Google Patents

Knauf für einen elektronischen schliesszylinder Download PDF

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Publication number
EP3985212A1
EP3985212A1 EP20201824.8A EP20201824A EP3985212A1 EP 3985212 A1 EP3985212 A1 EP 3985212A1 EP 20201824 A EP20201824 A EP 20201824A EP 3985212 A1 EP3985212 A1 EP 3985212A1
Authority
EP
European Patent Office
Prior art keywords
knob
locking
locking cylinder
torque
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20201824.8A
Other languages
English (en)
French (fr)
Other versions
EP3985212B1 (de
Inventor
Norbert Voss
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.)
SimonsVoss Technologies GmbH
Original Assignee
SimonsVoss Technologies GmbH
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 SimonsVoss Technologies GmbH filed Critical SimonsVoss Technologies GmbH
Priority to EP20201824.8A priority Critical patent/EP3985212B1/de
Publication of EP3985212A1 publication Critical patent/EP3985212A1/de
Application granted granted Critical
Publication of EP3985212B1 publication Critical patent/EP3985212B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • 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
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0026—Clutches, couplings or braking arrangements

Definitions

  • the present invention relates to a knob for a locking cylinder, particularly a knob for an electronic locking cylinder as well as an electronic locking cylinder with such a knob. More specifically, the present invention preferably provides a novel knob for a locking cylinder which provides additional security in specific situations.
  • mortise locks according to DIN 18251 for doors are provided with mechanical locking cylinders according to DIN 18252.
  • Such locking cylinders comprise a cylinder housing and a cylinder core inserted therein which can be rotated within the cylinder housing. With a matching key a lock bit extending from the cylinder housing is rotatable in order to lock or unlock the lock.
  • a lock bit extending from the cylinder housing is rotatable in order to lock or unlock the lock.
  • the locking cylinder is the core part of the security of lock and door.
  • Electronic locking cylinders are known in the state of the art.
  • Electronic locking cylinders are generally characterized in that they comprise an electronic coding, e.g., in form of electronic signals, instead of a mechanical coding of the keys.
  • an "electronic key” in form of a transmitter or a transponder is typically used, which transmits the electronic signals from the transponder to the locking cylinder by means of electromagnetic waves.
  • the signals are verified by means of an electronic means wherein said electronic means is typically integrated in one or two knobs which are provided at the locking cylinder (profile cylinder).
  • the knob or the knobs serve(s) beside the accommodation of electronic components also as handle for operating the locking cylinder and its lock bit.
  • DE 198 51 308 discloses a locking cylinder having a cylinder housing which can be inserted into a door lock, a lock bit being rotatable relative to the housing for operating the locking means of the door lock, a handle at the inner side of the door for operating the lock bit from inside and a handle at the outer side of the door for operating the lock bit provided that access permission has been determined.
  • Electronic locking cylinders are available in form of a single knob cylinder (half cylinder) or double knob cylinder.
  • a single knob cylinder half cylinder
  • double knob cylinder For mounting or dismounting an electronic single knob cylinder it is often necessary to rotate the knob by some degrees so that the lock bit does not extend transversally from the cylinder housing such that the locking cylinder can be inserted into the lock housing.
  • the locking cylinder is fixed at the lock housing by a relatively long screw, the fastening screw, fixing screw or forend screw (in German: Stulpschraube).
  • Stulpschraube German: Stulpschraube
  • the outer knob is coupleable via an actuator to the lock bit.
  • the actuator is in a decoupled state such that a rotation of the outer knob does not result in a rotating action of the lock bit, i.e., no torque or not enough torquq is transmitted from the outside knob to the lock bit.
  • a coupling between the respective knob and the locking bit is provided, typically for a limited time, e.g. more than 1 and less than 10 seconds. This is typically achieved in that the actuator moves from a decoupled state into a coupled state, preferably only for a short time, such that a rotation of the outer knob results in a rotation of the lock bit and the lock can be locked or unlocked.
  • the inner know is often fixedly coupled to the locking bit such that locking and unlocking from the inner side is always possible, i.e, locking and unlocking is possible without authentication.
  • Such locking cylinders with a permanently fixed coupling between the locking bit and the knob are often used for cellar doors such that persons inside the cellar can always unlock the lock in case sombody accidentally closed the lock from outside.
  • Such a fixed coupling also allows any person locking the lock from the inner side.
  • the lock is lockable from inside by an unauthorized person.
  • Such an unauthorized locking from the inside might be avoided by the omission of the inner knob.
  • Omitting any means at the inner side of the lock is, however, a security risk, e.g., in case of emergency. For instance, a person inside the room could be locked unintentionally such that this person wound have no chance to open the lock from inside.
  • the present invention relates to a rotatable knob of a locking cylinder, preferably an electronic locking cylinder, having a one-way clutch mechanism which provides torque transfer from the knob to a rotatable shaft of the locking cylinder depending on the rotation direction of the knob.
  • the shaft is fixedly connected with a locking bit of the locking cylinder, wherein rotation of the knob in a first direction transfers sufficient torque to the shaft such that the locking bit rotates with the knob. If the locking cylinder is mounted in a locking environment, e.g. mounted in a mortise lock, the transferred torque to the locking bit is large enough to lock or unlock a locking mechanism/unlocking mechanism of the mortise lock.
  • the one-way clutch mechanism comprises at least two pawls, one pawl for the torque-free direction clockwise and the other pawl for the torque-free direction counterclockwise.
  • the torque-free direction of the one-way clutch mechanism is switchable between clockwise and counterclockwise.
  • an access channel preferably at a back side of the knob which is configured to insert a tool for rotating a control disc of the one-way clutch mechanism to activate or deactivate a pawl of the clutch mechanism.
  • the knob may comprise a first knob part and a second knob part, wherein the first knob part is preferably fixedly connected to an outer surface of the knob and the second knob part is preferably fixedly connected to the shaft and one of the pawls engages with the first knob part and second knob part in case the knob is rotated against the torque-free direction.
  • the first knob part may comprise radially oriented protrusions and radially oriented depressions.
  • the second knob part may comprise radially oriented protrusions and radially oriented depressions, wherein the one pawl preferably engages with shoulders between the depressions and the protrusion in case the knob is rotated against the torque-free direction.
  • one of the pawls is configured to slide at least over the protrusions in case the knob is rotated in the torque-free direction.
  • the present invention also relates to a locking cylinder with a knob according to the present invention, with the knob mounted on one end of the locking cylinder.
  • the knob is a room inside knob and undetachable mounted to the locking cylinder, or detachable mounted to the locking cylinder.
  • the locking cylinder is preferably an electronic locking cylinder which comprises a second knob which is a room outside knob.
  • a freewheel, ratchet or one-way clutch is known.
  • the same principles are used for the knob of the present invention.
  • rotating the knob in one direction e.g. clockwise
  • Rotating the knob in the other direction e.g., counterclockwise
  • the present invention is not limited to any particular embodiment of a freewheel or one-way clutch mechanism. Nevertheless, a non limiting examples for freewheel mechanisms will be discussed in the following for a further understanding of the present invention.
  • the free rotation direction of the one-way clutch is switchable between clockwise and counterclockwise which is preferred in case the cylinder should be mountable to right side and left side doors.
  • the "one-way clutch” comprises two main parts:
  • a simple one-way clutch comprises two saw-toothed, spring-loaded discs pressing against each other with the toothed sides together, somewhat like a ratchet. Rotating in one direction, the saw teeth of the drive disc lock with the teeth of the driven disc, making it rotate at the same speed and same direction. If the drive disc rotates in the other direction, the teeth of the drive disc slip over the driven disc teeth such that the driven disc does not rotate while the drive disc rotates, producing a characteristic clicking sound.
  • a one-way clutch comprises an internally step-toothed cylinder, wherein said cylinder forms the knob.
  • At least one, preferably two or more spring-loaded, preferably hardened steel pawls transmit the load between the outer cylinder and an inner shaft. More pawls help spread the wear and give greater reliability although, simultaneous engagement of more than two pawls is rarely achieved.
  • the inside knob i.e., the knob which should be mounted to the mortise lock in the direction of the "inner room” of the present invention may comprise an one-way clutch, which allows transmitting torque to the shaft of the lock cylinder when rotated in one direction while preventing transmission of enough torque when rotated in the opposite direction.
  • an one-way clutch which allows transmitting torque to the shaft of the lock cylinder when rotated in one direction while preventing transmission of enough torque when rotated in the opposite direction.
  • a very small amount of torque might be transmitted which is, however, so small that the shaft will not rotate in the opposite direction or will only slightly rotate but not transmit sufficient amount of torque to actuate the locking or unlocking mechanism of the lock.
  • the invention preferably relates to an electronic locking cylinder having at least one inner/inside knob of the above described kind, i.e., a single knob cylinder.
  • the present invention also refers to double knob electronic cylinder which comprises the knob of the present invention at the inner side and another outside knob, preferably a knob which is couplable and decoupleable to/from the shaft of the lock cylinder by means of an actuator.
  • the electronic double knob cylinder according to the present invention preferably comprises an inner knob which can be removed from the locking cylinder.
  • Figure 1 is a perspective view of a double knob locking cylinder 42 having an inner doorknob 1 (inside or inner knob) and an outer doorknob 2 (outside or outer knob).
  • the locking cylinder 42 comprises a lock bit 3 which is at least partially rotatable around the rotational or longitudinal axis of the locking cylinder, i.e., around the longitudinal axis extending through the locking cylinder and the doorknobs 1 and 2.
  • Electronic components may be arranged solely in the outer knob 2, solely in the inner knob 1 or in the inner knob 1 and the outer knob 2. Electronics may also be located in the housing of the locking cylinder.
  • a receiving antenna and optionally additional electronic components may be arranged in the inner knob 1.
  • an active transponder which transmits the electromagnetic signals from outside through the door to the inner knob 1.
  • a receiving antenna and optionally additional electronic components may be arranged in the outside knob 2.
  • passive transponders can be used, and no electronic components are necessary in the inner knob 1.
  • An actuator for coupling and decoupling a knob, preferably the outer knob 2, with the shaft and therefore with the locking bit 3 may be arranged in the outer knob or within the body part or housing of the cylinder, which is illustrated as profile cylinder.
  • a deactivated actuator state there is no (torque transmitting) coupling between the outer knob 2 and the locking bit 3, such that the outer knob 2 is free rotatable (in both directions) without transmitting any (sufficient) forces/torque to the locking bit 3.
  • a lock cannot be locked or unlocked.
  • a transponder is located next to the outer knob 2 such that a signal is transmitted from the transponder to the electronics in the outer knob 2.
  • the signals are verified by means of the electronics and in case of successful verification or authentication is detected, the actuator is activated to couple the outer knob 2 with the locking bit 3 such that a rotational movement of the outer knob 3 results in a rotational movement of the locking bit 3; torque is transmitted and the lock can be locked and unlocked.
  • the inner knob 1 is comprises the one-way clutch mechanism of the present invention such that rotation of the inner knob 1 in the counterclockwise direction results in a rotation of the locking bit 3, i.e., the locking bit 3 also rotates counterclockwise (see arrow in Fig. 1 ).
  • FIG. 2 shows a side cross-sectional view of an inside (room inside) knob 1 of the present invention with a one-way clutch, ratchet or freewheel mechanism.
  • the knob 1 comprises an outer surface layer 16, preferably formed from a thin sheet of metal, providing an outer surface which is tangible by a user for rotating the knob 1.
  • the knob 1 comprises inside the outer surface layer 16 a first knob part 11 and a second knob part 12, wherein the outer surface layer 16 is preferably fixedly mounted to the first knob part 11.
  • the first knob part 11 is preferably arranged rotatable with respect to the second knob part 12.
  • the second knob part 12 is preferably fixedly connected to the cylinder shaft or cylinder core 15 which is fixedly mounted to the locking bit 3 (see Fig. 1 ).
  • the one-way clutch mechanism is provided between the first knob part 11 and the second knob part 12, as shown in further detail in Figs. 3 and 4 , which are cross-sectional view along line A-A of Fig. 2 .
  • Fig. 3 shows the inner cylinder shaft 15 with the second knob part 12 fixedly mounted on the inner shaft 15.
  • the one-way clutch mechanism is switchable between clockwise and counterclockwise free rotation, wherein the switching is achieved by means of a control disc 20.
  • the control disc 20 is arranged rotatable between a first and second position within the knob 1, wherein the first position deactivates a first locking element 31 and activates a second locking element 32. In case the control disc 20 is rotated to the second position, the first locking element 31 is activated but the second locking element 32 is deactivated.
  • This embodiment shows one locking element for free rotating clockwise and one control element for free rotating counterclockwise.
  • the present invention is, however, not limited to one locking element for each direction.
  • the control disc comprises a cam part 21 which gets into contact with the first locking element 31 in a first position.
  • the locking elements are preferably provided as pawls 31 and 32.
  • Fig. 3 shows cam part 21 on the "right side” in contact with the right locking element, which is the second locking element 32.
  • Rotation of the control disc 20 is achieved by rotating adjusting gear 25, which is preferably an external gear.
  • Said adjustment gear 25 engages with the control disc 20, which provides a recess with internal gears 26.
  • gear 25 and disc 20 could also be achieved by other arrangements, e.g., by providing also an external gear part at disc 20.
  • Said access channel 14 is configured to insert a suitable tool, e.g., in form of a hexagon shaft (e.g., Allen key ® ), to rotate gear 25 and therefore switching the free running direction of the one-way clutch.
  • a suitable tool e.g., in form of a hexagon shaft (e.g., Allen key ® )
  • Providing the access channel 14 at the back side of the knob 1 allows adjustment of the one-wheel clutch mechanism before the lock cylinder 42 is installed in the mortise lock but prevents that the mechanism is manipulated when the locking cylinder is installed in the mortise lock.
  • the second knob part 12 which is fixedly mounted to the inner shaft 15 of the locking cylinder comprises at the outer circumferential surface radially oriented protrusions and radially oriented depressions, which may be formed as asymmetric teeth of a ratchet or may be formed in any other appropriate way.
  • Figs. 3 and 4 show half circle depressions 121 and protrusions 122 which provide engaging shoulders for one end of each pawl 31 and 32.
  • the radial inner surface of the second knob part 11 provides similar geometries, e.g., radial depressions 111 and radial protrusions 112 with shoulders for engaging with the other end of the respective pawl 31, 32.
  • the knob of Fig. 3 when the knob of Fig. 3 is rotated by a user in the clockwise direction (see arrow), the first (radial outer) knob part 11 rotates clockwise in the unrestricted (i.e., forward) direction.
  • the control disc 20 preferably rotates together with the first knob part 11 such that pawl 32 is deactivated, e.g., pressed radially outward such that a first end of the pawl 32 will not get in contact with the protrusion o122 of the second (radial inner) knob part 12, even in case the knob part 11 rotates.
  • the pawl 31 is activated and allowed to move radially in and out, e.g., allowed to get into engaging contact with a protrusion 122 of the second knob part 12 such that rotation the first knob part 11 in the counterclockwise direction transfers torque to the second knob part 12.
  • a first end of pawl 31 is in engaging contact with a protrusion 112 of the first knob part 11 and the opposite end of pawl 31 is in engaging contact with a protrusion 122 of the second knob part 12.
  • spring element 33 biases the pawl 31 in such a position that the pawl 31 engages with the corresponding protrusions of the first and second knob parts.
  • the biased pawls 31 easily slides up and over the gently edges of the depressions and protrusions, wherein spring element 33 forcing it (often with an audible 'click') into the depression between the protrusions 122 as it passes each protrusion.
  • the first knob part 11 rotates again in the opposite direction (here: counterclockwise)
  • the pawl 31 will catch against an edge of the protrusion 122, such that the applied force to the knob 1 is transferred to the central shaft 15 and consequently transferred to the locking bit 3.
  • the free running direction is the "locking" direction such that the lock cannot be locked by rotating knob 1.
  • the knob 1 in the unlocking direction the rotational forces are always transferred to the locking bit 3 such that unlocking is always possible.
EP20201824.8A 2020-10-14 2020-10-14 Knauf für einen elektronischen schliesszylinder Active EP3985212B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20201824.8A EP3985212B1 (de) 2020-10-14 2020-10-14 Knauf für einen elektronischen schliesszylinder

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Application Number Priority Date Filing Date Title
EP20201824.8A EP3985212B1 (de) 2020-10-14 2020-10-14 Knauf für einen elektronischen schliesszylinder

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EP3985212A1 true EP3985212A1 (de) 2022-04-20
EP3985212B1 EP3985212B1 (de) 2023-01-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11655653B1 (en) 2022-04-15 2023-05-23 Digilock Asia Ltd. Electronically operated lock cylinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588209A1 (de) * 1992-09-15 1994-03-23 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Schloss mit elektrischer Aktivierung
DE19851308A1 (de) 1997-11-07 1999-05-12 Terra Dom Hausbau Gmbh Schließzylinder
DE202005003764U1 (de) * 2004-10-12 2005-05-19 Sitech Sicherheitstechnik Gmbh Profildoppelzylinder mit deutlich herausragendem Zylinderkern
DE102007000439A1 (de) * 2007-08-13 2009-02-19 Aug. Winkhaus Gmbh & Co. Kg Elektronisch betätigter Schließzylinder
WO2012171899A1 (en) * 2011-06-16 2012-12-20 Futurama Innovation Ab Torque transmitting arrangement
EP3018268A1 (de) * 2014-11-07 2016-05-11 Openways Sas Entkuppelbarer mechanismus für motorisierte schliessvorrichtung vom typ schliesszylinder mit druckknopf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588209A1 (de) * 1992-09-15 1994-03-23 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Schloss mit elektrischer Aktivierung
DE19851308A1 (de) 1997-11-07 1999-05-12 Terra Dom Hausbau Gmbh Schließzylinder
DE202005003764U1 (de) * 2004-10-12 2005-05-19 Sitech Sicherheitstechnik Gmbh Profildoppelzylinder mit deutlich herausragendem Zylinderkern
DE102007000439A1 (de) * 2007-08-13 2009-02-19 Aug. Winkhaus Gmbh & Co. Kg Elektronisch betätigter Schließzylinder
WO2012171899A1 (en) * 2011-06-16 2012-12-20 Futurama Innovation Ab Torque transmitting arrangement
EP3018268A1 (de) * 2014-11-07 2016-05-11 Openways Sas Entkuppelbarer mechanismus für motorisierte schliessvorrichtung vom typ schliesszylinder mit druckknopf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11655653B1 (en) 2022-04-15 2023-05-23 Digilock Asia Ltd. Electronically operated lock cylinder

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Publication number Publication date
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