EP2963212A1 - Actionneur de blocage électromécanique et dispositif de commande d'accès - Google Patents

Actionneur de blocage électromécanique et dispositif de commande d'accès Download PDF

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Publication number
EP2963212A1
EP2963212A1 EP15171202.3A EP15171202A EP2963212A1 EP 2963212 A1 EP2963212 A1 EP 2963212A1 EP 15171202 A EP15171202 A EP 15171202A EP 2963212 A1 EP2963212 A1 EP 2963212A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
blocking
slit
electro
helical spring
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
EP15171202.3A
Other languages
German (de)
English (en)
Other versions
EP2963212B1 (fr
Inventor
Peter Johan LANGENDOEN
Thomas Wolters
Erwin BERKOUWER
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.)
Optilox BV
Original Assignee
Optilox BV
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 Optilox BV filed Critical Optilox BV
Publication of EP2963212A1 publication Critical patent/EP2963212A1/fr
Application granted granted Critical
Publication of EP2963212B1 publication Critical patent/EP2963212B1/fr
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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
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • 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
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063—Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking element
    • 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
    • E05B2047/0031—Clutches, couplings or braking arrangements of the elastic type
    • 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
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/0634—Cylinder locks with electromagnetic control by blocking the rotor radially with a pivotally moveable blocking element

Definitions

  • the invention relates to an electro-mechanical blocking actuator and an access control device provided with such a blocking actuator.
  • Publication US2013/0043751 (A1 ) describes an electrical liner actuator which consists of a motor, a slider, a rotating shaft, a substantially helical spring and a pin, wherein the motor is a common DC micro motor and directly connected with the rotating shaft. A hole for fixing the pin is formed on the rotating shaft.
  • the spring is sleeved on the rotating shaft and an extended portion of the pin is disposed between two adjacent winding coils of the spring.
  • the motor is fixed inside a lock's housing the slider is arranged inside a sliding chute which is arranged inside the lock's housing and the sliding chute has the function of limiting and guiding the slider. For the slider to move to a retracted position, the motor and the rotating shaft rotate clockwise.
  • the pin enters into a first winding of the spring from a transition portion and continues to rotate along the spiral of the spring, so that coils of the first winding on the left of the pin are driven to move to the right of the pin in turn; meanwhile, the spring is compressed and drives the slider to move to the right until the pin is disposed at a transition portion between the left of the first winding and a second winding.
  • a buffer system is created in which energy can be stored within the spring. This energy could be used to move the slider to a blocking position or non-blocking position without a re-activation of the motor.
  • the electro-mechanical blocking actuator as claimed in claim 1. More particularly, the electro-mechanical blocking actuator according to the invention comprises a housing, a spindle and an electric driver arranged to rotate the spindle around a rotation axis.
  • a substantially cylindrical sleeve is movably arranged between the housing and the spindle, the sleeve comprising a slit.
  • a pin is inserted through the slit of the sleeve and fixed to the housing.
  • a helical spring is arranged which comprises a plurality of windings arranged around the spindle and having at least one of its outer ends fixed to the spindle. Coupling means are provided for movably coupling one of the windings of the helical spring to the sleeve.
  • the sleeve is movable between a blocking position and a non-blocking position.
  • the helical spring will act on the coupling means so as to drive the sleeve in a first co-axial direction from the blocking position to the non-blocking position.
  • the helical spring will act on the coupling means so as to drive the sleeve in a second co-axial direction from the non-blocking position to the blocking position, the second direction being opposite to the first direction.
  • the slit comprises at least a first and second slit portion, the second slit portion directly following the first slit portion at a transition point on the sleeve, and making an angle ⁇ relative to the first slit portion at the transition point, where ⁇ ⁇ 90 degrees.
  • the sleeve will also turn to some degree around the rotation axis in rotational directions determined by the orientation of the slit portions relative to the housing.
  • the provided blocking actuator is more robust to forceful manipulation as compared to known blocking actuators.
  • An example of such a manipulation is knocking with a hammer on an access control device which comprises the blocking actuator, in a direction parallel to the rotation axis, which is the movement direction of the sleeve. Due to the presence of the angle ⁇ between the first and second slit portions, the pin will stop the sleeve. Since the force applied is only a temporary impulse, the helical spring will move the sleeve back to its blocked position, without the blocking actuator ever being in a non-blocking position.
  • the slit in the sleeve has a substantially V-shaped form.
  • the slit only has two slit portions, but the slit may have more than two slit portions.
  • the angle ⁇ lies in a range of 80-90 degrees. More preferably the angle ⁇ is in a range of 85-87 degrees.
  • the helical spring comprises two co-axial parts dividing the helical spring into a first helical part, a second helical part, and an intermediate helical part lying between the two co-axial parts.
  • the sleeve comprises a further slit arranged on the opposite side of the slit, the further slit being line symmetrical relative to the slit with respect to the rotation axis.
  • the electro-mechanical blocking actuator further comprises a movable blocking element coupled to the sleeve for blocking a locking means of an access control device.
  • the blocking element may be rotatably coupled to the sleeve. In this way, forces on the blocking element created by the locking means, will cause the blocking element to rotate relative to the sleeve, thereby avoiding stress on and/or possible damage to the sleeve.
  • the invention also relates to an access control device including a first part and a second part, wherein at least one of the parts is movably arranged with respect to the other part, the device comprising an electro-mechanical blocking actuator as described above, wherein the first part and the second part are connectable, particularly securable, to each other and/or disconnectable, particularly releasable, from each other by means of the blocking actuator.
  • the invention also relates to an access control device including a stationary part and a movable part, and provided with the electro-mechanical blocking actuator according to the invention. More particularly, the device according to the invention is characterized in that the movable part and the stationary part are securable to each other and/or releasable from each by means of the blocking actuator.
  • an access control device are e.g. an electronically controlled key safe, a security escutcheon, a door lock, an industrial locking unit, a door handle and a cylinder lock. Such devices often have limited power sources.
  • the blocking actuator has an indirect functionality within a mechanical construction of the access control device in order to save energy.
  • Such devices are manually operated by an authorized person who wishes access.
  • the manual action may include e.g. rotating a handle, turning a knob or moving a sliding cover.
  • the access control device according to the invention has advantages similar to the advantages of the blocking actuator according to the invention.
  • FIG. 1 is an exploded view of an electro-mechanical blocking actuator 1 according to an embodiment of the invention.
  • the blocking actuator 1 comprises a housing 2, a spindle 3 and an electric driver 4 arranged to rotate the spindle 3 around a rotation axis 5.
  • the blocking actuator 1 further comprises a substantially cylindrical sleeve 6 movably arranged between the housing 2 and the spindle 3.
  • the sleeve 6 comprises a slit 7.
  • a pin 8 is inserted through the slit 7 of the sleeve 6 and fixed to the housing 2.
  • a helical spring 9 comprising a plurality of windings is arranged around the spindle 3 and has its outer ends, or at least one of the outer ends, fixed to the spindle 3.
  • the blocking actuator 1 comprises coupling means 10 for movably coupling one of the windings of the helical spring 9 to the sleeve 6.
  • the coupling means comprise a helical spring 101 and a hook 102.
  • the helical spring 101 of the coupling means 10 can be arranged around the sleeve 6 at a collar 61.
  • Figure 1 also shows a blocking pin 11 which can be coupled to the sleeve 6 in a preferably rotatable manner.
  • FIG. 2 shows a perspective view of an embodiment of the helical spring 9.
  • the helical spring 9 comprises two co-axial parts 91, 92 dividing the helical spring 9 into a first helical part 93, a second helical part 94, and an intermediate helical part 95 lying between the two co-axial parts 91, 92.
  • the helical spring 101 of the coupling means 10 is arranged around the sleeve 6 at the collar 61.
  • the sleeve 6 is placed around the spindle 3 and the helical spring 9.
  • the hook 102 of the coupling means 10 is hooked onto one of the windings of the intermediate helical part 95.
  • the hook Due to the two co-axial parts 91, 92 the hook is limited in its movement, and will not drift after some time as would be the case in the absence of the co-axial parts 91, 92.
  • the electric driver 4 is controlled by a fixed time period (e.g. 50ms). This time period may be chosen in a way that the sleeve 6 can make the stroke from the blocked to the unblocked position and vice versa.
  • the end positions of the sleeve 6 will be determined by the slit 7 and the pin 8.
  • the electric driver 4 is activated sufficiently long.
  • the electric driver 4 is activated for an insufficient period of time, e.g. 10ms, the sleeve 6 is not yet moved sufficiently. The time required to move the sleeve 6 is not always exactly the same.
  • a buffered stroke may take more time than a non-buffered stroke. Because prior to driving it is not known to the electric driver 4 whether there is a buffered or non-buffered movement to be made, a spacious activation period will be chosen. As a consequence, the motor 4 is almost always activated for a longer period than required to make a full stroke.
  • a small magnet may be placed in the sleeve 6 in conjunction with sensors in the housing.
  • the sleeve 6 is movable between a blocking position and a non-blocking position.
  • Figure 3 shows a perspective view of the blocking actuator 1 in cooperation with a locking mechanism 30 with the housing 2 removed.
  • the locking mechanism 30 may be part of an access control device as will be explained below in more detail.
  • the locking mechanism 30 comprises a T-shaped pin 31, a spring 32 and a blocking ball 33.
  • Figure 3 shows the sleeve 6 of the blocking actuator 1 in the blocking position in which the blocking pin 11 prevents movement of the T-shaped pin 31 caused by an external force on the locking mechanism.
  • Figure 4 is a cross section of the blocking actuator 1 in cooperation with a locking mechanism 30 according to the embodiment of Figure 1 and 3 .
  • the hook 102 of the coupling means 10 is hooking into one of the windings of the helical spring 9, more particularly of one of the windings of the intermediate helical part 95.
  • the helical spring 9 will act on the coupling means 10 so as to drive the sleeve 6 in a first co-axial direction from the blocking position to the non-blocking position. If the electric driver rotates the spindle and the helical spring in a second rotational direction, opposite to the first rotational direction, the helical spring will act on the coupling means so as to drive the sleeve in a second co-axial direction from the non-blocking position to the blocking position, the second direction being opposite to the first direction.
  • the helical spring 9 thus acts as a flexible thread between the spindle 9 and the sleeve 6.
  • Figure 5 shows a perspective view of the blocking actuator 1 in cooperation with the locking mechanism 30 in a situation wherein the blocking actuator 1 is driven to unlock, but the blocking pin 11 is held by the blocking mechanism 30. Due to the rotation of the spindle 3 and thus the helical spring 9, a part of the helical spring will be pushed in.
  • Figure 6 shows a cross section of the blocking actuator 1 wherein the helical spring 9 is partly pushed in. In this case the second helical part 94 and the intermediate helical part 95 are pressed in.
  • the locking mechanism 30 that is holding the blocking pin 11 results in a fixed position of the hook 102.
  • Driving the spindle 3 with the helical spring 9 towards the non-blocking position causes the first helical part 93 to be stretched out and the other helical parts to be compressed. The result is a buffered situation, in which the blocking actuator 1 will automatically switch to its non-blocking state, as soon as the force on the blocking pin 11 is released.
  • Figure 7 shows a perspective view of the blocking actuator 1 in cooperation with the locking mechanism 30 in a situation wherein the blocking actuator 1 is in an unlocked state with the helical spring 9 in its released (i.e. not buffered) state.
  • the blocking pin 11 is not blocking the locking mechanism 30.
  • Figure 8 shows a cross section of the blocking actuator 1 of the situation of Figure 7 , wherein the helical spring 9 is not pushed in.
  • Figure 9 shows a perspective view of the blocking actuator 1 in cooperation with the locking mechanism 30 in a situation wherein the sleeve 6 of the blocking actuator 1 is driven to its blocking position but it is blocked by the locking mechanism 30. Due to activation of electric driver 4 spindle 3 and thus the helical spring 9 are rotated until helical spring 9 is pressed in as shown in Figure 10 , which shows a cross section of the blocking actuator 1 in the situation of Figure 9 . As can be seen from Figure 10 , both the first helical part 93 and the intermediate helical part 95 are pressed in. The result is a buffered situation, in which the blocking actuator will automatically switch to its blocking position as soon as the blocking pin 11 in no longer obstructed by the locking mechanism 30.
  • FIG 11 shows a perspective view of a sleeve 70 according to an embodiment.
  • the sleeve 70 comprises two V-shaped slits 71, 72 which are symmetrical around the rotation axis 5.
  • a tangent plane 80 is shown which is a flat plane touching the sleeve 70 at a point where the slit 71 changes direction.
  • Figure 12 shows a projection 81 of the slit 71 onto the tangent plane 80.
  • the slit 71 comprises two slit portions 71' and 71". These two slit portions 71' and 71" make an angle ⁇ which is smaller than or equal to 90 degrees.
  • the angle ⁇ is in the range of 80-90 degrees and is preferably between 85-87 degrees, such as 85 degrees.
  • the first and second slit portions 71', 71" do not necessarily have to be straight lines, they may be curved.
  • Figure 13A shows such an example.
  • the slits 71, 72 may comprise more than two slit portions, wherein a third slit portion makes a further angle ⁇ relative to the second slit portion.
  • Figure 13B and 13C show examples of such embodiments.
  • the angle ⁇ may be smaller than or equal to 90 degrees. Adding more slit portions can reduce the free travel of the sleeve when an impulse force is applied to the access control device.
  • the sleeve may comprise only one slit 71, wherein the pin 8 will only extend from the housing through the slit 71, but will not extend through the sleeve 6.
  • the pin 8 will force the sleeve 6 to turn when it is moved in the first or second co-axial direction by the helical spring 9.
  • the sleeve 6 will turn around the rotation axis in rotational directions determined by the orientation of the slit portions 71', 71" relative to the housing 2.
  • Figure 14 shows the embodiment of Figure 1-10 , wherein the T-shaped pin 31 is blocked by the blocking pin 11. So, in Figure 14 , a blocking position of the sleeve 6 (and thus of the blocking actuator) is shown. Figure 14 shows an arrow which indicates an impulse which may be created by a forceful attempt to manipulate the blocking actuator 1.
  • An example of such a manipulation attempt is knocking with a hammer on an access control device which comprises the blocking actuator 1 in a direction parallel to the rotation axis, which is the movement direction of the sleeve 6; see the arrow F in Figure 14 .
  • an access control device comprising a first part and a second part, wherein at least one of the parts is movably arranged with respect to the other part.
  • the access control device may be e.g. a key safe or a security escutcheon.
  • Figure 15 shows part of a cross section of a key safe having a first part 201, being a slidable movable cover, and a second part, being an inner frame 202 of the key safe. So the cover 201 and the inner frame 202 are movably arranged with respect to each other.
  • the device is provided with the electro-mechanical blocking actuator as described above.
  • the first part and the second part are securable to each other and/or releasable from each other by means of the blocking actuator 1.
  • the blocking actuator 1 is driven so that the blocking pin 11 is blocking the T-shaped pin 31.
  • the T-shaped pin 31 due to the forces of the spring 32, pushes the blocking ball 33 into a cavity 203 of the cover 201. If someone tries to open the cover 201, the cover 201 will be forced into the direction indicated by an arrow 205. But due to the blocking ball 33, the cover cannot be slid, so the key safe stays closed.
  • the cover 201 can be slid and will then force the blocking ball 33 to move, which is possible in the situation of Figure 16 .
  • Figure 15 and 16 show a device wherein the first part is a stationary part and the second part is a movable part, and wherein the movable part and the stationary part are securable to each other and/or releasable from each other by means of the blocking actuator.
  • the electro-mechanical blocking actuator according to the invention may also be called the mechatronic blocking actuator or blocking actuator according to the invention.
  • the blocking actuator and parts thereof can be made of any suitable material, such as metals, like stainless steel, aluminium alloys, copper alloys, or plastics, or composites of plastics.
EP15171202.3A 2014-07-01 2015-06-09 Actionneur de blocage électromécanique et dispositif de commande d'accès Active EP2963212B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2013102A NL2013102B1 (en) 2014-07-01 2014-07-01 An electro-mechanical blocking actuator and an access control device.

Publications (2)

Publication Number Publication Date
EP2963212A1 true EP2963212A1 (fr) 2016-01-06
EP2963212B1 EP2963212B1 (fr) 2017-08-09

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Application Number Title Priority Date Filing Date
EP15171202.3A Active EP2963212B1 (fr) 2014-07-01 2015-06-09 Actionneur de blocage électromécanique et dispositif de commande d'accès

Country Status (4)

Country Link
EP (1) EP2963212B1 (fr)
DK (1) DK2963212T3 (fr)
ES (1) ES2643114T3 (fr)
NL (1) NL2013102B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106223730A (zh) * 2016-09-12 2016-12-14 杭州六孚智能科技有限公司 机电一体化锁头
CN106246003A (zh) * 2016-09-20 2016-12-21 东莞市锁之道科技有限公司 一种用于锁定装置的电动机构
EP3636861A1 (fr) 2018-10-12 2020-04-15 SimonsVoss Technologies GmbH Actionneur destiné à une serrure électrique et procédé d'actionnement d'une serrure électrique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122385A1 (fr) * 2000-02-01 2001-08-08 Harrow Products Inc. Mécanisme de verrouillage anti-blocage pour système de sécurité électonique
US20080303290A1 (en) * 2007-06-11 2008-12-11 Shanghai Buddy Technological Co., Ltd Lock with a swing bolt and an actuator assembly thereof
US20130043751A1 (en) 2011-08-17 2013-02-21 Mengxiao Yuan Electrical liner actuator for lock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122385A1 (fr) * 2000-02-01 2001-08-08 Harrow Products Inc. Mécanisme de verrouillage anti-blocage pour système de sécurité électonique
US20080303290A1 (en) * 2007-06-11 2008-12-11 Shanghai Buddy Technological Co., Ltd Lock with a swing bolt and an actuator assembly thereof
US20130043751A1 (en) 2011-08-17 2013-02-21 Mengxiao Yuan Electrical liner actuator for lock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106223730A (zh) * 2016-09-12 2016-12-14 杭州六孚智能科技有限公司 机电一体化锁头
CN106246003A (zh) * 2016-09-20 2016-12-21 东莞市锁之道科技有限公司 一种用于锁定装置的电动机构
CN106246003B (zh) * 2016-09-20 2018-11-27 东莞市锁之道科技有限公司 一种用于锁定装置的电动机构
EP3636861A1 (fr) 2018-10-12 2020-04-15 SimonsVoss Technologies GmbH Actionneur destiné à une serrure électrique et procédé d'actionnement d'une serrure électrique

Also Published As

Publication number Publication date
EP2963212B1 (fr) 2017-08-09
DK2963212T3 (da) 2017-11-13
ES2643114T3 (es) 2017-11-21
NL2013102B1 (en) 2015-11-12

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