Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
  • E05B9/10—Coupling devices for the two halves of double cylinder locks, e.g. devices for coupling the rotor with the locking cam
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
  • E05B13/00—Devices preventing the key or the handle or both from being used
  • E05B13/10—Devices preventing the key or the handle or both from being used formed by a lock arranged in the handle
  • E05B13/101—Devices preventing the key or the handle or both from being used formed by a lock arranged in the handle for disconnecting the handle
• • 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
  • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
  • E05B47/0611—Cylinder locks with electromagnetic control
  • E05B47/0638—Cylinder locks with electromagnetic control by disconnecting the rotor
  • E05B47/0642—Cylinder locks with electromagnetic control by disconnecting the rotor axially, i.e. with an axially disengaging coupling element

Definitions

• the present invention relates to a cylinder for driving mechanisms.
• cylinders typically of standardized dimensions, which are coupled to driving mechanisms, typically frame locks or other mechanisms such as switches for the control of automatic devices (e.g. motors for opening/closing gates or doors).
• driving mechanisms typically frame locks or other mechanisms such as switches for the control of automatic devices (e.g. motors for opening/closing gates or doors).
• a cylinder for driving mechanisms typically comprises a main body (also called stator) on which there is rotatably fixed a cam (commonly named tongue), having a protruding portion actuating the driving mechanism to which the cylinder is applied, for example a translation of the bolt and/or of the latch of the lock for direct or indirect actuation by the protruding portion of the cam.
• a cam commonly named tongue
• the mechanical cylinder usually comprises a rotating body (commonly called plug) rotatably housed in the main body and typically comprising a seat shaped for the insertion of a coded key, having section compatible with the section of the seat itself and a toothing composed of teeth and/or depressions of different heights that determine the coding or combination.
• a rotating body commonly called plug
• plug rotatably housed in the main body and typically comprising a seat shaped for the insertion of a coded key, having section compatible with the section of the seat itself and a toothing composed of teeth and/or depressions of different heights that determine the coding or combination.
• the mechanical type cylinder usually also comprises a (mechanical and/or magnetic) encoded locking mechanism able to prevent the rotation of the rotating body, with respect to the main body, in absence of the key inserted in the seat.
• the locking mechanism typically comprises a plurality of holes, made in the main body and in the rotating body and intended to house respective pins, counter-pins and springs. With the holes of the main body aligned with those of the rotating body, the insertion of the key causes a sliding of each pin as a function the height of a relative tooth/depression on the key (or as a function of the presence of a magnet).
• each pin lies with a respective end, which contacts a respective counter-pin, at the outer circumference of the rotating body, configuration which allows the rotation of the key (in jargon called "key turn") and of the rotating body with respect to the main body.
• This rotation causes the rotation of the cam (coupled to the rotating body typically by means of the key), which in turn causes the actuation of the driving mechanism.
• the Applicant has also noted that when the known cylinders are mounted in the locks, it is necessary the presence of a handling body (e.g. handle or knob) separate from the cylinder to move the latch with open lock (retracted bolt). This in turn causes a greater structural complexity of the lock in which the cylinder is mounted, with consequent increases in the construction and/or assembly and/or installation costs, as well as an increase in the aesthetic impact.
• a handling body e.g. handle or knob
• Object of the present invention is to provide a cylinder for driving mechanisms which is simple and ergonomic to be actuated (for example in the rotation of the rotating body).
• Object of the present invention is to provide a cylinder for driving mechanisms which allows to move the latch with open lock by a handling body integrated with the cylinder itself, thus simplifying the structure of the driving mechanism/lock.
• the invention relates to a cylinder for driving mechanisms comprising a main body having a cavity, a first rotating body rotatably housed in said cavity and having an axis of rotation along a longitudinal development direction of said cylinder, and a cam, rotatably fixed to said main body and selectively couplable to said first rotating body to rotate about said axis of rotation rigidly with said first rotating body.
• Said cylinder comprises a coupling element structured to alternatively assume a coupling position in which it couples said cam with said first rotating body and a decoupling position in which it does not couple said cam with said first rotating body.
• Said cylinder comprises a handling body (rigidly) fixed to said first rotating body for rotating said first rotating body about said axis of rotation.
• Said cylinder comprises a second rotating body rotatably housed in said handling body and having a respective axis of rotation.
• said second rotating body comprises a seat shaped for the insertion of a key, said key enabling a rotation of said second rotating body.
• Said cylinder comprises an actuation mechanism mechanically interposed between said second rotating body and said coupling element to transform a rotation of said second rotating body into a displacement of said coupling element from said decoupling position to said coupling position, and/or vice versa.
• the combination of the aforesaid features in particular the handling body rigidly fixed to the first rotating body, the second rotating body housed in the handling body and actuatable by a key which enables its rotation, and the actuation mechanism interposed between the second rotating body and the coupling element and structured to transform a rotation of the second rotating body into a displacement of the coupling element from the decoupling position to the coupling position, achieves a cylinder for driving mechanisms simple and ergonomic to be actuated and simultaneously includes the integration of the handling body with the cylinder itself.
• the rotations commonly imparted to the rotating body by the key (the so-called key turns), which, in the known mechanical cylinders, can for example actuate the bolt of a lock, are in this case impressed by the handling body which, thanks to greater ergonomics and gripping easiness, advantageously allows a simpler and more ergonomic actuation of the cylinder.
• the coupling between the cam and the first rotating body/handling body takes place only after enablement of the rotation of the second rotating body by the key, which therefore guarantees the desired safety.
• the present invention in one or more of the aforesaid aspects can have one or more of the following preferred features.
• said actuation mechanism is at least partially, more preferably mainly, even more preferably substantially completely, housed inside said handling body. In this way the structure of the cylinder is simplified.
• said actuation mechanism comprises a thrust element mechanically connected to, and operatively interposed between, said second rotating body and said coupling element.
• said actuation mechanism comprises a coupling system (more preferably with inclined planes) which couples said second rotating body with said thrust element and structured to transform a rotation of said second rotating body into a (linear) translation of said thrust element from an at-rest position distal from said cam to a thrust position proximal to said cam.
• a coupling system (more preferably with inclined planes) which couples said second rotating body with said thrust element and structured to transform a rotation of said second rotating body into a (linear) translation of said thrust element from an at-rest position distal from said cam to a thrust position proximal to said cam.
• said coupling system comprises a guide (more preferably a slot or a groove) having (at least partially) helical development about said axis of rotation of said second rotating body, said guide being realized in one among said second rotating body and thrust element (more preferably in said thrust element).
• said coupling system comprises a pin (typically having radial development with respect to said axis of rotation of the second rotating body) slidably engaging said guide, said pin being fixed to another among said second rotating body and thrust element (more preferably to said second rotating body). In this way a simple and rational coupling system is made.
• the pin which rotates together with the second rotating body, slides in the helical guide contacting at least one of the inclined side walls of the guide (the walls which determine its helical shape).
• the force imparted by the pin to the guide is suitably decomposed to generate a component which causes a linear translation thereof.
• said helical development of the guide is shaped to allow the displacement of said thrust element from the at-rest position to the thrust position within a rotation of the second rotating body having amplitude greater than or equal to 75° and/or less than or equal to 105°.
• the thrust element is brought in the thrust position by a limited rotation of the second rotating body and therefore in face of a limited action by the user on the key (hence in a simpler and more ergonomic manner).
• said thrust element is mechanically connected to said coupling element in such a way that a displacement of the thrust element from said at-rest position to said thrust position gives to said coupling element a thrust force in direction of said cam.
• the actuation of the thrust element allows the coupling between the cam and the first rotating body (if the first rotating body is correctly angularly aligned with the cam).
• said second rotating body comprises a first portion proximal to said cam, said coupling system being at said first portion of the second rotating body. In this way the coupling by the coupling system between the second rotating body and the thrust element is facilitated.
• said cylinder comprises a further main body having a respective cavity, said second rotating body being rotatably housed in said respective cavity.
• said further main body is housed inside, and rigidly fixed to, said handling body.
• said cylinder comprises a (e.g. mechanical and/or magnetic) encoded locking mechanism realized in said further main body and second rotating body and structured to prevent a rotation of said second rotating body with respect to said further main body in absence of said key inserted in said seat of the second rotating body.
• a (e.g. mechanical and/or magnetic) encoded locking mechanism realized in said further main body and second rotating body and structured to prevent a rotation of said second rotating body with respect to said further main body in absence of said key inserted in said seat of the second rotating body.
• the key enables the rotation of the second rotating body by exploiting for example locking mechanisms based on consolidated principles.
• said first rotating body comprises a longitudinally through cavity.
• said cavity of first rotating body is engaged by said thrust element at one end distal from said cam and by said coupling element at one end proximal to said cam. In this way it is achieved inside the first rotating body a connecting channel between the actuation mechanism and the coupling element.
• said thrust element in said thrust position develops at least partially inside said cavity of said first rotating body. In this way the thrust element in the thrust position is suitably positioned to simulate the insertion of a common coded key in a cylinder with usual mechanical driving.
• said cylinder comprises a first elastic element (e.g. a spring) operatively interposed between said coupling element and said thrust element and structured to oppose an (increasing) elastic reaction to an (increasing) displacement of said thrust element from said at-rest position to said thrust position.
• a first elastic element e.g. a spring
• the first elastic element exerts a thrust on the coupling element towards the cam, allowing the coupling between the cam and the first rotating body, if there is a correct angular alignment between the two aforementioned elements.
• the first elastic element keeps the coupling element in thrust against an abutment wall of the cam.
• the coupling element can assume the coupling position.
• said cylinder comprises a second elastic element (e.g. a spring) operatively interposed between said main body and said coupling element and structured to oppose an (increasing) elastic reaction to an (increasing) displacement of said coupling element from said decoupling position to said coupling position.
• a second elastic element e.g. a spring
• the second elastic element tends to bring the coupling element back to the decoupling position.
• said first and/or second elastic element are compression springs, more preferably equal to each other, arranged along said longitudinal direction at opposite sides of said coupling element. In this way the elastic reactions of the first and second elastic elements are suitably directed.
• said first and/or second elastic element have a respective degree of preloading in a closing configuration of the cylinder in which said coupling element is in the decoupling position and said thrust element is in an at-rest position. In this way it is ensured that the elastic elements act in all the cylinder configurations even in face of manufacturing tolerances.
• the degree of preload is the same for said first and second elastic element.
• the coupling element (and possibly the further coupling element) remains in the decoupling position.
• said first elastic element is housed in said cavity of said first rotating body and comprises a first end in contact with said coupling element and a second end structured to receive a thrust force from said thrust element. In this way it is possible to transfer to the coupling element the thrust force given by the thrust element.
• said respective axis of rotation of said second rotating body is parallel to said axis of rotation of said first rotating body.
• the rotation of the second rotating body is rational and, with it, the displacement of the thrust element from the at-rest position to the thrust position.
• said respective axis of rotation of said second rotating body does not coincide with said axis of rotation of said first rotating body. In this way it is possible to center the handling body with respect to the first rotating body, leaving free space for the encoded locking mechanism, while limiting the dimensions of the handling body.
• said seat of the second rotating body has main longitudinal development.
• said cylinder comprises a third rotating body rotatably housed in a further cavity of the main body realized at the opposite side of said cam with respect to said cavity, and having a respective axis of rotation coinciding with said axis of rotation of the first rotating body.
• said third rotating body is firmly and rigidly coupled to said cam to rotate rigidly with said cam about said axis of rotation. In this way a rotation of the third rotating body causes an opening of the lock.
• said cylinder comprises a further handling body (firmly) fixed to said third rotating body. In this way it is possible to actuate the lock at the closing side opposite with respect to the handling body.
• said cylinder comprises a further coupling element structured to alternatively assume a coupling position in which it couples said cam with said first rotating body and a decoupling position in which it does not couple said cam with said first rotating body.
• said cylinder has a median plane of symmetry perpendicular to the axis of rotation of the first rotating body (for a position of the coupling element).
• the cylinder is a whole cylinder with mechanical key driving according to the present invention on both sides.
• said cylinder comprises a (more preferably electro-mechanical) actuator structured to displace said further coupling element from the decoupling position to the coupling position, and/or vice versa.
• a hybrid cylinder for driving mechanisms i.e. a cylinder that comprises a mechanical key driving at a closing side and an electronic driving at an opposite closing side, both aimed to selectively couple the handling body to the cam.
• the hybrid cylinders are typically mounted in frame locks.
• the bolt is operated by the mechanical key which rotates the rotating body, while the latch is operated by a separate handling body (e.g. a handle or a knob).
• the latch can also be operated by a limited rotation of the key at the end of the complete rotations (the key turns) necessary for the retraction of the bolt.
• the handling body at the mechanical key driving side is integrated with the cylinder and, when coupled to the cam by the first rotating body and the actuation mechanism, it allows to drive the bolt and possibly the latch of the lock, as described.
• a user provided only with the electronic key is able to drive the bolt also coming from the mechanical key driving side.
• the actuator couples, by the further coupling element, the cam to the first rotating body and allows the user to drive the bolt (and thus open the lock) by rotating the handling body.
• the hybrid cylinder can therefore be advantageously mounted so that the handling body is placed outside an environment whose access is controlled by a frame (or in general other access barrier device) and therefore it does not require the anti-break-in armouring on the electronic side.
• said cylinder comprises an electric power supplier electrically connected to said actuator and preferably housed inside said further handling body. In this way it is possible to supply the actuator.
• said electric power supplier comprises one or more accumulators, for example electric batteries or capacitors.
• said cylinder comprises a command and control unit, preferably housed inside said further handling body and, electrically connected to said electric power supplier and to said actuator. In this way the electric contacts remain confined in the further handling body.
• said command and control unit is programmed and configured to receive as an input a signal (preferably a wireless signal) identifying an access right and for actuating said actuator on the basis of a verification of said signal identifying an access right. In this way the actuation of the electronic cylinder happens only in presence of a correct access right.
• a signal preferably a wireless signal
• said actuator is a linear actuator acting along said longitudinal direction.
• said actuator comprises (or consists of) an electromagnet, typically comprising a solenoid with which it is associated a thrust element of ferromagnetic material which is moved by a magnetic field generated by a current in the solenoid.
• an electromagnet typically comprising a solenoid with which it is associated a thrust element of ferromagnetic material which is moved by a magnetic field generated by a current in the solenoid.
• said actuator comprises a motor, more preferably an electric motor.
• the electric motor can provide for the actuation of the electronic cylinder with a lower overall electric power consumption.
• said actuator preferably said motor or said solenoid
• said actuator is at least partially (more preferably mainly) housed in said further handling body.
• said actuator comprises a further thrust element (e.g. a rod) having a main development direction along said axis of rotation of the first rotating body, wherein said actuator is structured to rectilinearly displace said further thrust element from an at-rest position distal from the cam to a thrust position proximal to the cam.
• the further thrust element simulates the insertion of a common key.
• said further thrust element is mechanically connected to said further coupling element in such a way that a displacement of said further thrust element from said at-rest position to said thrust position gives to said further coupling element a thrust force in direction of said first rotating body. In this way the actuation of the further thrust element allows the coupling between the cam and the first rotating body (if the first rotating body is correctly angularly aligned with the cam).
• said third rotating body comprises a longitudinally through cavity.
• said cavity of the third rotating body is engaged by said actuator at one end distal from said cam and by said further coupling element at one end proximal to said cam. In this way inside the third rotating body it is obtained a connection channel between the actuation mechanism and the coupling element.
• said further thrust element in said thrust position develops at least partially inside said cavity of said third rotating body.
• said second elastic element is housed in said cavity of said third rotating body and comprises a first end in contact with said further coupling element and a second end structured to receive a thrust force from said further thrust element. In this way it is possible to transfer to the further coupling element the thrust force given by the further thrust element, allowing the electronic side of the hybrid cylinder to couple the first rotating body and the cam.
• said further coupling element is arranged side by side to, and in mutual contact with, said coupling element along said longitudinal direction.
• the thrust forces exerted by the thrust element and by the further thrust element are rigidly transmitted respectively to the further coupling element and to the coupling element and, consequently, also to the other elements arranged in chain along the longitudinal direction, such as for example the elastic elements, thus allowing both the elastic elements to act on both the coupling elements.
• the second elastic element exerts a thrust on the further coupling element towards the first rotating body, allowing the coupling between the cam and the first rotating body, if there is a correct angular alignment between the two aforementioned elements. In absence of this correct angular alignment, the second elastic element keeps the further coupling element in thrust against an abutment wall of the first rotating body.
• the further coupling element can assume the coupling position.
• the second elastic element tends to bring the further thrust element back to the at-rest position.
• the first elastic element whose action is rigidly transmitted to the further coupling element through the coupling element tends to bring the further coupling element back to the decoupling position.
• said cylinder comprises a first contact body interposed between said thrust element and said first elastic element and a second contact body interposed between said further thrust element and said second elastic element.
• a thrust of the thrust elements is transferred to the respective closest elastic elements.
• figure 1 shows a perspective view of an embodiment of a cylinder for driving mechanisms according to the present invention
• figure 2 shows a longitudinal sectional view of the cylinder of figure 1 in a closing configuration
• figure 3 shows a longitudinal sectional view of the cylinder of figure 1 in a first opening configuration
• figure 4 shows a longitudinal sectional view of the cylinder of figure 1 in a second opening configuration
• figure 5 shows an exploded view of the cylinder of figure 1.
• the present invention includes any type of cylinder for driving mechanisms, for example hybrid cylinder (wherein the cylinder comprises on one side an electronic driving and on the other a mechanical key driving according to the present invention, as shown in the second embodiment) whole cylinder with only mechanical key driving (not shown, wherein the cylinder comprises at least on one side or on both sides a manual mechanical key driving according to the present invention), half cylinder with mechanical driving (not shown, wherein the cylinder comprises on one side a mechanical key driving according to the present invention and no driving on the other side), and of any shape, such as for example the European cylinder shape exemplarily shown below, or, not shown, oval, round, etc.
• hybrid cylinder wherein the cylinder comprises on one side an electronic driving and on the other a mechanical key driving according to the present invention, as shown in the second embodiment
• whole cylinder with only mechanical key driving not shown, wherein the cylinder comprises at least on one side or on both sides a manual mechanical key driving according to the present invention
• half cylinder with mechanical driving not shown, wherein the cylinder comprises
• the sections shown in figures 2, 3 and 4 are taken on a longitudinal median plane 200 (shown in figure 1 ) of a cylinder 1 according to the present invention.
• the longitudinal plane 200 is preferably a plane of substantial geometrical symmetry for the cylinder 1 (e.g. except for minor asymmetries, such as, for example, the longitudinal seat for the insertion of the key, the locking mechanism, and the coupling system with inclined planes).
• a cylinder for driving mechanisms comprising a main body 2 having a cavity 3, a first rotating body 4 rotatably housed in the cavity 3 and having an axis of rotation 100 along a longitudinal development direction of the cylinder 1 , and a cam 5, rotatably fixed to the main body 2 and selectively couplable to the first rotating body 4 to rotate about the axis of rotation 100 rigidly with the first rotating body 2.
• the cylinder 1 comprises a coupling element 6 structured to alternatively assume a coupling position (shown in figure 3) in which it couples the cam 5 with the first rotating body 4 and a decoupling position (shown in figure 2) in which it does not couple the cam 5 with the first rotating body 4. Even the position shown in figure 4 represents a further position in which the coupling element does not couple the two elements.
• the cylinder 1 comprises a handling body 7 (for example a knob) rigidly fixed (for example by means of screws not shown) to the first rotating body 4 to rotate the first rotating body 4 about the axis of rotation 100.
• a handling body 7 for example a knob
• rigidly fixed for example by means of screws not shown
• the cylinder 1 comprises a second rotating body 8 rotatably housed in the handling body 7 and having a respective axis of rotation 101 along the longitudinal direction.
• the second rotating body 8 comprises a seat 9 with longitudinal main development shaped for the insertion of a key (not shown), which enables the rotation of the second rotating body 8.
• the cylinder 1 comprises an actuation mechanism 10 mechanically interposed between the second rotating body 8 and the coupling element 6.
• actuation mechanism 10 comprises a thrust element 11 mechanically connected to, and operatively interposed between, the second rotating body 8 and the coupling element 6.
• the actuation mechanism 10 comprises a coupling system with inclined planes 50 which comprises a slot 12, exemplarily made in the thrust element 11 , having a helical segment development about the axis of rotation 101 of the second rotating body 8, and a pin 13, fixed to the second rotating body 8, slidably engaging the slot 12.
• the second rotating body 8 is composed of a first sub element 8' proximal to the cam 5 and a second rotating sub-element 8' distal from the cam 5 distinct to each other and rigidly coupled.
• the coupling system 50 is placed at a first portion 14 of the second rotating body 8 (exemplarily the pin 13 is fixed to the first rotating sub-element 8').
• the cylinder 1 comprises a further main body 15 (exemplarily composed of two distinct pieces rigidly coupled to each other) housed inside, and rigidly fixed (for example by screws, not shown) to, the handling body 7 and having a respective cavity 16, the second rotating body 8 being rotatably housed in the respective cavity 16.
• a further main body 15 exemplarily composed of two distinct pieces rigidly coupled to each other housed inside, and rigidly fixed (for example by screws, not shown) to, the handling body 7 and having a respective cavity 16, the second rotating body 8 being rotatably housed in the respective cavity 16.
• the cylinder 1 comprises a mechanical encoded locking mechanism 17 (only partially shown in the figures as, for example, of known type) made in the further main body 15 and in the second rotating body 8 and structured to prevent a rotation of the second rotating body 8 with respect to the further main body 15 in absence of the key inserted in the seat 9.
• a mechanical encoded locking mechanism 17 (only partially shown in the figures as, for example, of known type) made in the further main body 15 and in the second rotating body 8 and structured to prevent a rotation of the second rotating body 8 with respect to the further main body 15 in absence of the key inserted in the seat 9.
• the first rotating body 4 comprises a longitudinally through cavity 18 which is engaged by the thrust element 11 (more precisely by a thrust pin 70 thereof) at one end 20 distal from the cam 5, and by the coupling element 6 at one end 22 proximal to the cam 5.
• the thrust element 11 in a thrust position proximal to the cam develops at least partially inside the cavity 18 of the first rotating body 4.
• the cylinder 1 comprises a first elastic element 23 operatively interposed between the coupling element 6 and the thrust element 11 and a second elastic element 24 operatively interposed between the main body 2 and the coupling element 6.
• first 23 and the second elastic element 24 are compression springs equal to each other.
• first elastic element 23 is housed in the cavity 18 of the first rotating body 4 and comprises a first end 25 in contact with the coupling element 6 and a second end 26 in contact with a contact body 43 interposed between the first elastic element itself and the thrust element 11.
• Exemplarily the respective axis of rotation 101 of the second rotating body 8 is parallel to, but not coincident with, the axis of rotation 100 of the first rotating body 4 (fig. 1 ).
• the cylinder 1 has a median plane of symmetry perpendicular to the axis of rotation 100 of the first rotating body 4 (for a position of the coupling element), i.e. the cylinder is a whole cylinder with mechanical key driving according to the present invention on both sides.
• the cylinder is a hybrid whole cylinder.
• the cylinder comprises a further coupling element 30 and an (exemplarily electro mechanical) actuator 31 structured to displace the further coupling element 30 from a decoupling position in which it does not couple the cam 5 with the first rotating body 4 to a coupling position in which it couples the cam 5 with the first rotating body 4.
• an (exemplarily electro mechanical) actuator 31 structured to displace the further coupling element 30 from a decoupling position in which it does not couple the cam 5 with the first rotating body 4 to a coupling position in which it couples the cam 5 with the first rotating body 4.
• the cylinder 1 comprises a third rotating body 27 rotatably housed in a further cavity 28 of the main body 2 realized at opposite side of the cam 5 with respect to the cavity 3, and having a respective axis of rotation coinciding with the axis of rotation 100 of the first rotating body 4.
• the third rotating body 27 is firmly and rigidly coupled to the cam 5 (e.g. by a lap joint) to rigidly rotate with the cam 5 about the axis of rotation 100.
• Mutually facing ends of the first rotating body 4 and of the third rotating body 27 are shaped to support the cam 5.
• the cylinder 1 comprises a further handling body 29 (e.g. a knob) firmly fixed to the third rotating body 27 and an electric power supplier 32 (exemplarily constituted by the batteries shown in the figures) electrically connected to the actuator 31 and housed in a suitable seat inside the further handling body 29.
• the further handling body 29 preferably comprises a removable cover 60 for closing an opening 61 for extraction/insertion of the electric power supplier 32 and for protecting the latter.
• the cylinder comprises a command and control unit 33 (only schematically shown) housed inside the further handling body 29, electrically connected to the electric power supplier 32 and to the actuator 31 and programmed and configured to receive as an input a signal (preferably a wireless signal for example RFID, Bluetooth, infrared or Wifi) identifying an access right and for actuating the actuator 31 on the basis of a verification of the signal identifying the access right.
• a signal preferably a wireless signal for example RFID, Bluetooth, infrared or Wifi
• the actuator 31 is a linear actuator acting along the longitudinal direction and comprising a motor 34, exemplarily a PPML20C24 electric motor marketed by PrimoPalTM, housed inside the further handling body 29.
• a further thrust element 35 e.g. a rod having a main development direction along the axis of rotation 100 of the first rotating body 4.
• the third rotating body 27 comprises a longitudinally through cavity 36 which is engaged by the further thrust element 35 at an end 37 distal from the cam 5, and by the further coupling element 30 at an end 38 proximal to the cam 5.
• the further thrust element 35 in a thrust position proximal to the cam (fig. 4), develops at least partially inside the cavity 36 of the third rotating body 27.
• the second elastic element 24 is housed inside the cavity 36 and comprises a first end 41 in contact with the further coupling element 30 and a second end 42 in contact with a contact body 44 interposed between the second elastic element and the further thrust element 35.
• the further coupling element 30 is arranged side by side to, and in mutual contact with, the coupling element 6 along the longitudinal direction.
• the cylinder 1 comprises a respective open elastic ring 45 (e.g. of the "Seeger” type) for the first rotating body 4 and for the third rotating body 27.
• a respective open elastic ring 45 e.g. of the "Seeger” type
• the actuator consists of an electromagnet, comprising a solenoid with which a respective thrust element of ferromagnetic material is associated which is moved by a magnetic field generated by a passage of electric current in the solenoid.
• the respective thrust element inserted in the solenoid is similar to the further thrust element 35 of the actuator 31 , while the solenoid takes the place (and the position) of the motor 34.
• the following description about the operation of an electronic cylinder according to the present invention can also be applied to an electronic cylinder in which the actuator 31 comprises (or consists of) an electromagnet.
• the thrust element 11 and the further thrust element 35 are in their respective at-rest positions and the coupling element 6 and the further coupling element 30 are in their respective decoupling positions.
• the first 23 and the second elastic element 24 have a respective degree of preload equal to each other.
• the insertion of a key (not shown) having a correct coding in the seat 9 of the second rotating body 8, enables the rotation of the latter with respect to the handling body 7.
• the helical development of the slot 12 is shaped to transform, through the sliding of the pin 13, a rotation of the second rotating body 8 into a linear (exemplarily longitudinal) translation of the thrust element 11 from an at- rest position distal from the cam (shown in figures 2 and 4) to the thrust position.
• Exemplarily the displacement of the thrust element 11 from the at-rest position to the thrust position takes place in the face of a limited rotation (equal to about 90°) of the second rotating body 8.
• the first elastic element 23 exerts a thrust on the coupling element 6 towards the cam 5.
• a correct angular alignment between the cam and the coupling element is achieved (in which, for example, suitable radial relieves of the coupling element simultaneously engage corresponding seats made in the cam)
• the coupling element 6 can assume the coupling position coupling the cam 5 with the first rotating body 4 (fig. 3).
• a rotation of the handling body 7 causes a rotation of the cam 5 and allows to open the lock. If this correct angular alignment is instead absent, the first elastic element 23 keeps the coupling element 6 in thrust against an abutment wall of the cam 5.
• the motor 34 (or the solenoid) of the actuator 31 rectilinearly translates the further thrust element 35 from an at-rest position distal from the cam 5 (shown in figures 2 and 3) to the thrust position.
• the second elastic element 24 exerts a thrust on the further coupling element 30 towards the first rotating body 4, allowing the coupling between the cam 5 and the first rotating body 4, if there is a correct angular alignment between the two aforesaid elements. In absence of this correct angular alignment, the second elastic element 24 keeps the further coupling element 30 in thrust against an abutment wall of the first rotating body 4.
• the further coupling element 30 can assume the coupling position (fig. 4) and the opening of the lock can take place by a rotation of the handling body 7.
• the thrust forces exerted by the thrust element 11 and by the further thrust element 35 are rigidly transmitted respectively to the further coupling element 30 and to the coupling element 6 and, consequently, also to the other elements arranged in chain along the longitudinal direction, thus allowing both the elastic elements to act on both the coupling elements.
• the second elastic element 24 brings the coupling element 6 back to the decoupling position (fig. 2).
• the first elastic element 23 brings the further coupling element 30 back to the decoupling position and the second elastic element 24 brings the further element thrust 35 back to the at-rest position (fig. 2).

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Transmission Devices (AREA)
• Lock And Its Accessories (AREA)
• Vehicle Body Suspensions (AREA)
• Jib Cranes (AREA)
• Manipulator (AREA)
• Forklifts And Lifting Vehicles (AREA)
• Eye Examination Apparatus (AREA)

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• 2018
  • 2018-11-16 IT IT102018000010406A patent/IT201800010406A1/it unknown
• 2019
  • 2019-11-05 CN CN201980072978.XA patent/CN112955618B/zh active Active
  • 2019-11-05 HR HRP20221408TT patent/HRP20221408T1/hr unknown
  • 2019-11-05 EP EP19808915.3A patent/EP3880906B1/en active Active
  • 2019-11-05 WO PCT/IT2019/050237 patent/WO2020100173A1/en unknown
  • 2019-11-05 ES ES19808915T patent/ES2929374T3/es active Active

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