EP4257786A1 - Serrure pour une fenêtre ou une porte - Google Patents

Serrure pour une fenêtre ou une porte Download PDF

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Publication number
EP4257786A1
EP4257786A1 EP23163048.4A EP23163048A EP4257786A1 EP 4257786 A1 EP4257786 A1 EP 4257786A1 EP 23163048 A EP23163048 A EP 23163048A EP 4257786 A1 EP4257786 A1 EP 4257786A1
Authority
EP
European Patent Office
Prior art keywords
lock
window
selector
case
torsion 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
EP23163048.4A
Other languages
German (de)
English (en)
Other versions
EP4257786B1 (fr
EP4257786C0 (fr
Inventor
Marco MOGNETTI
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.)
Iseo Serrature SpA
Original Assignee
Iseo Serrature SpA
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 Iseo Serrature SpA filed Critical Iseo Serrature SpA
Publication of EP4257786A1 publication Critical patent/EP4257786A1/fr
Application granted granted Critical
Publication of EP4257786B1 publication Critical patent/EP4257786B1/fr
Publication of EP4257786C0 publication Critical patent/EP4257786C0/fr
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
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0056—Locks with adjustable or exchangeable lock parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-bolts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C1/16—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially in a plane substantially parallel to the wing or frame
    • 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
    • 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
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0403—Wound springs
    • E05B2015/0406—Wound springs wound in a cylindrical shape
    • E05B2015/041—Wound springs wound in a cylindrical shape loaded perpendicular to cylinder axis
    • 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
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0431—Modifying spring characteristic or tension

Definitions

  • This invention refers to a lock for a window or door, of the type comprising a case housing a latch of the lock, a rotatable follower provided with a housing for a square pin for controlling the latch, and an automatic return torsion spring of the rotatable follower when the manual force actuating the control square pin is released.
  • the opening element generally includes a latch that is extracted automatically from the case to the closed position of the lock when the manual force actuating the control square pin is released.
  • a traditional lock of the type disclosed above is in general suitable for being combined with a handle by which said manual force is exerted.
  • the torsion spring has rigidity that is suitable for ensuring the return of the rotatable follower and consequently of the control square pin and of the handle when the weight of the handle that is installed varies.
  • a traditional lock of the type disclosed above is however in general able to function correctly only if combined with a handle.
  • a traditional lock of the type disclosed above would hardly be compatible for combination with a panic device.
  • the combination of the panic device, which already has a return spring, with a lock of the type disclosed above that has a further return spring can be useless or even harmful because it leads to extremely high manual opening forces being required that may not conform to current regulations.
  • GB 2 323 626 A and EP 2 112 304 A2 show a lock with mechanical adjusting means for adjusting the preload of a torsion spring configured to transform a rotational movement of a selector of the preload into a translation movement of an operating element on the torsion spring.
  • This mechanical means can be rather bulky as it envisages a linear movement of the operating element on the torsion spring.
  • the technical task of the present invention is therefore to realise a lock for a window or door that enables the decried technical drawbacks of the prior art to be eliminated.
  • an object of the invention is to realise a lock for a window or door with highly flexible use, adaptable for use in combination with both a handle and with a panic handle.
  • Another aim of the invention is to realise a lock for a window or door adaptable for use in combination with both a handle and with a panic handle without having to remove any component.
  • said selector has two selection positions to which two operating positions of said second end of said torsion spring correspond.
  • said adjusting means has two configurations of stable equilibrium at said two selection positions.
  • said selector is accessible through a window of said case to perform the selection.
  • said selector has a selection notch.
  • a label is provided on the case showing two graphic reproductions of said selector in the two selection positions.
  • the lock is suitable for use with a handle or with a panic device by a simple adjustment that does not requires dismantling or removal of any component.
  • the adjustment is advantageously reversible because the movement of the kinematic chain formed by the selector and by the movement element is reversible.
  • the lock can thus be used in two different contexts and the installer is free to choose to adopt the lock configuration that the occasion requires.
  • the installer selects the selection position to which the greater preload corresponds, whereas in the case of a combination of the lock with a panic handle device the installer selects the selection position to which the lesser preload corresponds.
  • a lock is shown having two distinct opening elements, i.e. latch and a bolt, but the invention extends to locks for windows and doors provided with only a latch.
  • the lock has a case 1 that houses the latch 4 and the bolt 2.
  • the bolt 2 is actuatable by a cylinder 3 having a stator 3A and a rotor 3B provided with a slit 10 for inserting a key (not shown).
  • the case 1 is formed by two parallel flat sides 5, a bottom 6, a base 7 and a cap 8.
  • the case 1 is closed frontally by a plate 9 having suitable openings for extracting and retracting the bolt 2 and the latch 4.
  • a fixed support 12 and a rotatable follower 11 provided with a housing 13 for a square pin (not shown) for controlling retraction of the latch 4 into the case 1 to an opening position of the lock.
  • the rotatable follower 11 is rotatable reversibly between a first limit stop 34 corresponding to the closed position of the lock closed by the latch 4 in which the latch 4 is protracted from the case 1 and a second limit stop 35 corresponding to the opening position of the lock opened by the latch 4.
  • the limit stop 34 of the rotatable follower 11 is obtained on the fixed support 12.
  • the limit stop 35 of the rotatable follower 11 is obtained on the case 1.
  • the torsion spring 14 has a first end 14A rigidly coupled in rotation with the rotatable follower 11 and a second end 14B.
  • the first end 14A of the spring 14 is formed by a spring 14 section turned towards the inside of the cylindrical generatrices of the coils of the spring 14, whereas the second end 14B of the spring 14 is formed by a section turned to the outside of the cylindrical generatrices of the coils of the spring 14.
  • the spring 14 surrounds a protrusion 16 of the rotatable follower 11 in which the housing 13 is obtained.
  • the protrusion 16 of the rotatable follower 11 has a split 17 in which the first end 14A of the spring 14 is engaged.
  • the lock features mechanical adjusting means of the preload of the torsion spring 14 acting on the second end 14B of the torsion spring 14.
  • the mechanical adjusting means comprises a movement element 18 of the operating position of the second end 14A of the spring 14.
  • the movement element 18 is fitted rotatably in the case 1.
  • the movement element 18 has a rotation movement receiving cam 19 and a movement cam 20 of the second end 14A of the spring 14 4.
  • the mechanical adjusting means also comprises a suitable selector 22 interacting with the movement receiving cam 19 to move the movement element 18.
  • the selector 22 has two selection positions to which two different positions of the second end 14A of the spring 14 4 correspond and consequently two different preload values of the spring 14 4.
  • the mechanical adjusting means has two different configurations of stable equilibrium at the two selection positions of the selector 22.
  • the selector 22 is fitted rotatably in the case 1.
  • the selector 22 is nevertheless accessible through a window 23 of the case 1 to perform the selection.
  • the selector 22 has a selection notch 24 that is engageable by a tool that is accessible through the window 23 of the case 1.
  • the selection can be made using the tip of a screwdriver.
  • the movement element 18 and the selector 22 are rotatable around respective fixed rotation axes 25, 26 parallel to the fixed rotation axis 27 of the rotatable follower 11.
  • Such rotation axes 25, 26, 27 are orthogonal to the flat sides 5 of the case 1.
  • the selector 22 has in particular a movement transfer cam 28 transferring movement to the movement receiving cam 19, and a first and a second plane 29, 30 that are mutually tilted and selectively engageable against an abutment plane 31 formed on the support 12.
  • the abutment plane 31 defines a first rotation limit stop of the selector 22 when it engages the first plane 29 of the selector 22 at the first stable equilibrium configuration of the mechanical adjusting means and a second rotation limit stop of the selector 22 when it engages the second plane 30 of the selector 22 at the second stable equilibrium configuration of the mechanical adjusting means.
  • the second end 14B of the spring 14 reacts on the movement element 18 with a force "Fm” with arm “a” relative to the rotation axis 25 of the movement element 18, and the thus urged movement element 18 in turn exerts on the selector 22 a force "Fb” with arm “b” relative to the rotation axis 26 of the selector 22.
  • This force "Fb” generates torque that tends to rotate the selector 22 clockwise to the original selection position.
  • Figure 7 shows that as the rotation of the selector 22 increases from the first selection position, the arm “b" of the force "Fb" decreases.
  • the selector 22 then rotates to the second selection position because this time, compared to the cases illustrated above, the rotation of the selector 22 is sufficiently great to make the application direction of the force "Fb" travel through the rotation axis 26 of the selector 22.
  • the second end 14B of the spring 14 then, through actuation of the selector 22, can be positioned stably only in the two operating positions.
  • a label 33 is applied to the case 1, the label 33 showing two graphic reproductions 33A and 33B of the selector 22 in the two selection positions.
  • the label 33 is staggered from the selector 22.
  • the lock can be provided with the selector 22 in a default selection position, for example the first selection position, on which the approved graphic reproduction 33A, 33B of the selector 22 is superimposed.
  • the installer for switching from the first to the second selection position, the installer necessarily has to bore the label 33 with the tip of the screwdriver.
  • the materials used, as well as the dimensions, can be any depending on the needs and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Structural Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
EP23163048.4A 2022-04-08 2023-03-21 Serrure pour une fenêtre ou une porte Active EP4257786B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102022000007058A IT202200007058A1 (it) 2022-04-08 2022-04-08 Serratura per serramento

Publications (3)

Publication Number Publication Date
EP4257786A1 true EP4257786A1 (fr) 2023-10-11
EP4257786B1 EP4257786B1 (fr) 2024-07-24
EP4257786C0 EP4257786C0 (fr) 2024-07-24

Family

ID=82308342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23163048.4A Active EP4257786B1 (fr) 2022-04-08 2023-03-21 Serrure pour une fenêtre ou une porte

Country Status (2)

Country Link
EP (1) EP4257786B1 (fr)
IT (1) IT202200007058A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323626A (en) 1997-03-25 1998-09-30 Newman Tonks Group Plc Latch assembly with adjustable spring
EP2112304A2 (fr) 2008-04-25 2009-10-28 CESlocks GmbH Insert de serrure pour une serrure de porte en verre
WO2011072334A1 (fr) * 2009-12-18 2011-06-23 Assa Abloy Australia Pty Limited Ensemble serrure à mortaise réglable
EP2468989A2 (fr) * 2010-12-23 2012-06-27 Dorma GmbH + Co. KG Verrou pour une porte, notamment pour une porte vitrée
EP2503080A2 (fr) * 2011-03-21 2012-09-26 Grundmann Beschlagtechnik GmbH Abattant à borne à ressort

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2323626A (en) 1997-03-25 1998-09-30 Newman Tonks Group Plc Latch assembly with adjustable spring
EP2112304A2 (fr) 2008-04-25 2009-10-28 CESlocks GmbH Insert de serrure pour une serrure de porte en verre
WO2011072334A1 (fr) * 2009-12-18 2011-06-23 Assa Abloy Australia Pty Limited Ensemble serrure à mortaise réglable
EP2468989A2 (fr) * 2010-12-23 2012-06-27 Dorma GmbH + Co. KG Verrou pour une porte, notamment pour une porte vitrée
EP2503080A2 (fr) * 2011-03-21 2012-09-26 Grundmann Beschlagtechnik GmbH Abattant à borne à ressort

Also Published As

Publication number Publication date
EP4257786B1 (fr) 2024-07-24
EP4257786C0 (fr) 2024-07-24
IT202200007058A1 (it) 2023-10-08

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