EP1348825A1 - Serrure avec deux verrous, commandée par un serrure cylindrique - Google Patents

Serrure avec deux verrous, commandée par un serrure cylindrique Download PDF

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Publication number
EP1348825A1
EP1348825A1 EP03075630A EP03075630A EP1348825A1 EP 1348825 A1 EP1348825 A1 EP 1348825A1 EP 03075630 A EP03075630 A EP 03075630A EP 03075630 A EP03075630 A EP 03075630A EP 1348825 A1 EP1348825 A1 EP 1348825A1
Authority
EP
European Patent Office
Prior art keywords
lock
bar
teeth
lock according
transmission wheels
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.)
Withdrawn
Application number
EP03075630A
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German (de)
English (en)
French (fr)
Inventor
Ivo Dr.-Ing. Finardi
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.)
PREFER Srl
Original Assignee
PREFER Srl
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 PREFER Srl filed Critical PREFER Srl
Publication of EP1348825A1 publication Critical patent/EP1348825A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E05C9/041—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with rack and pinion mechanism
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • E05B17/042—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member using toothed wheels or geared sectors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0053—Other details of locks; Parts for engagement by bolts of fastening devices means providing a stable, i.e. indexed, position of lock parts

Definitions

  • the subject of the present invention is a lock of the type comprising two opposite locks, the movements of which in opposite directions are controlled by a cylinder block.
  • This kind of lock is susceptible of applications one of which is characteristic is the application to the grids. extensible composed by vertical slats, connected to each other by cinematisms with crossed levers (so-called Nuremberg scissors) and sliding by their ends along two horizontal slides, the upper one and the other lower.
  • the lock is incorporated in a grate end slats.
  • two-turn operation requires that the locks be blocked when the dot key is temporarily abandoned between the two to prevent the latches from falling or moving by gravity.
  • We provides for this purpose by using locking pawls which, during actuation of the lock, are raised by the rotation of the cylinder block, but such mechanisms are prone to easy breakdowns, and they stop working at all if the cylinder block is replaced by another block whose dimensions are not identical, as well as when parts of the cylinder block suffer considerable changes in their dimensions due to wear.
  • a first object of the present invention is to provide a lock of the kind mentioned in which said drawbacks should be eliminated or reduced. More particularly, an object of the invention is to provide conditions such as to authorize the use of a profile cylinder block to control the lock, with the benefits that flow from it. Another object of the invention is to ensure the lock of reduced transverse dimensions, all without weakening no element of construction. A particular object of the invention is positively ensuring the irreversibility of the movement of the locks in the positions which correspond to the interruptions of the action of the key, without for that make use of ratchets or other moving parts, likely to be damaged or deteriorated, or not to function properly.
  • Another particular object of the invention is to authorize the realization of most or even all of the components of the lock by work of shearing, half shearing and bending of sheet metal, as well as allow the assembly of all components by their deposition in order in the correct positions, without having to make critical couplings. It is also an object of the invention to make it possible that certain components relative to the two different locks are identical to each other in their construction, with a consequent reduction in the cost price. Finally, a goal general of the invention is to authorize the production of such a lock by reducing, compared to the known technique, the costs of materials, labor and mounting.
  • a lock as defined in the preamble including a boxed envelope with cover, a cylinder block installed in a central position in said envelope, two actuating members for latches, mounted movable in longitudinal direction in said casing, and mechanisms capable of moving said actuating members under the control of the cylinder block, is characterized: in that said cylinder block is a profile cylinder block with bit; in that said mechanisms include a bar movable in the longitudinal direction in the envelope and provided with teeth capable of being engaged by the cylinder block bit for moving said bar, a pair of racks integral with said bar, a pair of pivoted transmission wheels in the envelope, each transmission wheel being secured to one side of a toothed wheel which engages one of said racks and being provided at its periphery, on the opposite side, with an even number n of projections spaced apart a uniform angular distance of 1 / n of full angle; and that at least one of said actuators for the locks is provided with conformations with profiled teeth capable of cooperating with
  • said number n be number 4, and therefore that the peripheral projections of the transmission wheels are four in number, regularly spaced 90 ° apart, and the condition of irreversibility used is shown in correspondence of positions of the transmission wheel reciprocally rotated by 90 °.
  • Said bar teeth are arranged so as to produce a displacement of the bar corresponding to a turn of the key for each rotation complete with cylinder block with bit, and each toothed wheel is arranged to produce a 1 / n full angle rotation of the drive wheel corresponding, as a consequence of a displacement of the corresponding bar at a turn of the key.
  • both actuators for the locks are provided with said conformation with profiled teeth constituting, with said peripheral projections of the transmission wheels, kinematic pairs having an irreversibility condition in correspondence of positions reciprocally rotated transmission wheels of 1 / n angle full.
  • the bit engages a pair of bar teeth, moves the bar a length corresponding to a turn of the key and abandons the bar, to repeat the same operations during a successive rotation as well as, if necessary, during subsequent rotations, thus determining at least two turns of the key.
  • the commitment of the bit with the organ it controls is interrupted between a turn of the key and the successive turn of the key.
  • the bar during each of its movements, produces the rotation of the gear wheels meshing with its racks, and the transmission wheels integral with the toothed wheels, being dimensioned as we said, rotate 1 / n full angle (or one of its multiples) for each displacement of the bar, ie for each turn of the key.
  • said conformations with profiled teeth of at least an actuator for a lock includes teeth and spaces interdental whose depth corresponds at least approximately to the radius to which are located said peripheral projections of the transmission wheels relative to the axis of rotation of these transmission wheels, and said teeth terminate at least approximately at the axes of rotation of the wheels of transmission.
  • the sides of said teeth are profiled on a part considerable of their extension along the enveloping line drawn by the around the peripheral projections of the corresponding transmission wheel, during the rotation of this transmission wheel combined with a displacement regular actuator for a lock. This way we minimizes play during actuation of the lock.
  • said toothed wheels and said projections presented by the transmission wheels are produced by means of a half shear of the transmission wheels themselves. This allows to realize these organs relatively complicated in a very economical and advantageous way from a technological point of view.
  • said bar also has at least three digs, and that the lock includes a member resiliently biased to trigger in one of these digs which is in correspondence of the very organ.
  • Said elastically stressed member can advantageously be a protrusion end of a lever pivoted on the lock cover and pushed by a comes out towards the bar.
  • pivoting and guiding means for said transmission wheels and for said lever are produced by shearing in relief or half-shearing of the material of said envelope and respectively of said cover. Also this forecast allows obtaining precise parts and resistant by economic operations.
  • the lock described is particularly suitable for its application to extendable grids, everything being susceptible of many others applications.
  • the lock according to this invention can be made in limited dimensions, using robust bodies, whose cooperation is not critical, and it can be assembled in a simple way, susceptible, if necessary, to be fully mechanized.
  • a lock according to the invention comprises an envelope in a box 10, which in its operational conditions is closed by a cover 12 fixed to the box by folding tabs 11. Thanks to the arrangements which will be described below, the simple fixing of the cover retains in their correct positions and with freedom of movement necessary all interior parts of the lock.
  • the cover supports a cylinder block 20 of the profile type (thus called European cylinder) with bit, which can be replaced being fixed in the lock by means of a screw 22.
  • a first component consists of a bar 30, formed by a sheet metal bent in a U and slidably mounted in a longitudinal direction in the box 10.
  • the bar 30 has teeth 31 which are intended to cooperate with the bit 21 of the cylinder block 20 ( Figure 7) to produce a displacement longitudinal of the bar 30 under the control of a key actuating the cylinder block 20.
  • This displacement of the bar 30 is therefore one turn of the key for each complete rotation of the bit 21 of the cylinder block 20, and it corresponds at the distance between the axes of two adjacent teeth 31.
  • the bar 30 has hollows 32, the mutual distances of which are equal to the distances of the teeth 31, and which are capable of cooperating with an end projection 41 a lever 40, pivoted at 42 to the cover 12 and pushed elastically towards the bar 30 by a spring 43.
  • This arrangement known per se, ensures a stop at triggering of the bar 30 in the prefixed operational positions for key turns; this especially to assure the user the feeling of a flawless operation.
  • the bar 30 has racks 33, with which mesh two cogwheels 51 which are part of transmission wheels 50 pivoted in the box 10, preferably on pivots made by shearing in relief or half-shear of the material of the box.
  • the gear wheels 51 are obtained from the material transmission wheels 50 by half shear.
  • Racks 33 and the gear wheels 51 have reciprocal dimensions such as displacement one turn of the bar 30 produces a 90 ° rotation of the wheels toothed 51.
  • the primitive circle of the toothed wheels 51 is therefore equal to four times the distance between the axes of two adjacent teeth 31.
  • the transmission wheels 50 also have, projecting from the side opposite the gear wheels 51, four projections 52, preferably in the form of semi-sheared pivots of the material of the transmission wheels 50.
  • the projections 52 are located on the periphery of the transmission wheels 50, and they are arranged at regular angular distances of 90 °.
  • each actuating member 60 comprises a series of teeth 62 separated by interdental spaces 63.
  • these interdental teeth and spaces are obtained from the material actuating members 60 by half shear, so that they can occupy the extensive surfaces of these organs without compromising their resistance mechanical.
  • the teeth 62 and the interdental spaces 63 of the two actuators 60 must be turned to opposite sides, because the two actuating members 60 must perform movements in contrary. Consequently, the two actuating members 60 can be constructively identical and be mounted in reverse positions.
  • FIGS. 8 to 11 refer to successive phases of movement relative to a key turn, for the organ actuator 60 which is on the left in the preceding figures.
  • the different teeth 62 and the different interdental spaces 63 of the actuating member 60, as well as the different pivots 52 of the transmission wheel 50 are distinguished from each other by different subscripts.
  • the actuating member 60 is withdrawn in its rest position.
  • the pivot 52 1 is located in a hollow 63 0 which constitutes a first rudimentary interdental space, and the pivot 52 3 is engaged in the interdental space 63 2 , so that the actuating member 60 is positively blocked in relation to any movement in the longitudinal direction.
  • two key turns are provided, which in general are sufficient, this also thanks to the characteristics of the lock according to the invention, which authorize at each turn of the key to produce a displacement locks over a length considerably greater than the Length authorized by known locks.
  • the lock according to the invention which authorize at each turn of the key to produce a displacement locks over a length considerably greater than the Length authorized by known locks.
  • by increasing the number of teeth 31 and 62 it is possible to make locks with three or several turns of the key, if one believes it is appropriate.
  • the teeth 62, and therefore the corresponding interdental spaces 63 are profiled as shown in the figures, to say by following substantially the enveloping line drawn by the periphery pivots 52 of the transmission wheel 50 during the. rotation of this wheel of transmission in combination with regular movement of the organ actuation 60. In this way we minimize the play of all mechanism during its actuation, and one reaches a particularly functioning regular.
  • the height of the teeth 62 and the interdental spaces 63 must correspond, at least approximately, to the radius of rotation of the pivots 52 of the transmission wheel 50, and the teeth should end approximately at the level of the axis of rotation of this transmission wheel.
  • the following lock the invention comprises a reduced number of components; all components can be made of sheet metal, and components including two copies are present in the lock can be identical to each other, thus finally achieving a considerable reduction in cost price.
  • the mounting the lock can be done by simply depositing in order components in their correct positions, without having to make couplings critical, and then these components are retained by simple fixing of the cover. In this way we reduce the installation time and costs, and this assembly does not require the use of experienced personnel; the case if necessary, the assembly can also be mechanized, in part or entirely.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP03075630A 2002-03-22 2003-03-04 Serrure avec deux verrous, commandée par un serrure cylindrique Withdrawn EP1348825A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002TO000254A ITTO20020254A1 (it) 2002-03-22 2002-03-22 Serratura a due catenacci comandata da cilindro a profilo.
ITTO20020254 2002-03-22

Publications (1)

Publication Number Publication Date
EP1348825A1 true EP1348825A1 (fr) 2003-10-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075630A Withdrawn EP1348825A1 (fr) 2002-03-22 2003-03-04 Serrure avec deux verrous, commandée par un serrure cylindrique

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EP (1) EP1348825A1 (it)
IT (1) ITTO20020254A1 (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20090002A1 (it) * 2009-01-02 2010-07-03 Tecnoporta Snc Perfezionamento nei sistemi di serrature di sicurezza del tipo a catenaccio con pistoni mobili
GB2498425A (en) * 2011-11-17 2013-07-17 Banks J & Co Ltd Lock mechanism
US11781341B1 (en) * 2020-10-16 2023-10-10 Nationwide Industries, Inc. Double latch dual action gravity latch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434635A1 (en) * 1989-12-22 1991-06-26 PREFER COMMERCIALE S.r.L. Manually or automatically operated lock in particular for rolling gates
DE4209855A1 (de) * 1992-03-26 1993-09-30 Melchert Beschlaege Schließzylinderbetätigbares Treibstangenschloß
EP0853175A1 (fr) * 1997-01-13 1998-07-15 PREFER S.r.l. Serrure pour rideaux, portes basculantes et similaires
EP0906996A2 (en) * 1997-10-03 1999-04-07 C.I.S.A. Costruzioni Italiane Serrature Affini S.p.A. Lock provided with a gear device for actuating at least one bolt
EP1172508A1 (en) * 2000-07-11 2002-01-16 APW Electronics Limited Door latching mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434635A1 (en) * 1989-12-22 1991-06-26 PREFER COMMERCIALE S.r.L. Manually or automatically operated lock in particular for rolling gates
DE4209855A1 (de) * 1992-03-26 1993-09-30 Melchert Beschlaege Schließzylinderbetätigbares Treibstangenschloß
EP0853175A1 (fr) * 1997-01-13 1998-07-15 PREFER S.r.l. Serrure pour rideaux, portes basculantes et similaires
EP0906996A2 (en) * 1997-10-03 1999-04-07 C.I.S.A. Costruzioni Italiane Serrature Affini S.p.A. Lock provided with a gear device for actuating at least one bolt
EP1172508A1 (en) * 2000-07-11 2002-01-16 APW Electronics Limited Door latching mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20090002A1 (it) * 2009-01-02 2010-07-03 Tecnoporta Snc Perfezionamento nei sistemi di serrature di sicurezza del tipo a catenaccio con pistoni mobili
GB2498425A (en) * 2011-11-17 2013-07-17 Banks J & Co Ltd Lock mechanism
GB2498425B (en) * 2011-11-17 2017-05-03 J Banks & Co Ltd Lock mechanism
US11781341B1 (en) * 2020-10-16 2023-10-10 Nationwide Industries, Inc. Double latch dual action gravity latch

Also Published As

Publication number Publication date
ITTO20020254A1 (it) 2003-09-22
ITTO20020254A0 (it) 2002-03-22

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