EP4141205A1 - Serrure avec fermeture automatique et ouverture par poussée - Google Patents

Serrure avec fermeture automatique et ouverture par poussée Download PDF

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Publication number
EP4141205A1
EP4141205A1 EP22186967.0A EP22186967A EP4141205A1 EP 4141205 A1 EP4141205 A1 EP 4141205A1 EP 22186967 A EP22186967 A EP 22186967A EP 4141205 A1 EP4141205 A1 EP 4141205A1
Authority
EP
European Patent Office
Prior art keywords
lock
detent element
profile
movable
detent
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.)
Pending
Application number
EP22186967.0A
Other languages
German (de)
English (en)
Inventor
Daniele Zetti
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.)
DGN SRL
Original Assignee
DGN 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 DGN SRL filed Critical DGN SRL
Publication of EP4141205A1 publication Critical patent/EP4141205A1/fr
Pending 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
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
    • E05C19/022—Released by pushing in the closing direction

Definitions

  • the present invention relates to a lock with automatic closure and push opening.
  • pieces of furniture which comprise a structure which forms a compartment in front of which a closure leaf is arranged which is articulated about a substantially horizontal axis by means of hinges, of the type of conventional wall-mounted furniture, overhead compartments, and the like.
  • hinges must allow the movement of the leaf between a closed configuration, in which it is directed downward so as to occlude the corresponding compartment, and an open configuration, in which it is rotated and raised upward so as to allow access to said compartment.
  • locks with automatic closure which essentially provide a supporting plate which has a through hole inside which a lever is inserted so as to pass through, said lever oscillating about a pivot between a locking position and a release position, having a first end which supports a detent which protrudes from one side of the supporting plate and a second maneuvering end which protrudes from the opposite side of said supporting plate.
  • the lock has elastic means for contrasting the movement of the lever from the locking position to the release position.
  • the supporting plate is applied at a slot formed on the leaf, so that the lever passes through it and the corresponding first end that supports the detent protrudes toward the inside of the compartment and the second end is accessible from the outside of the leaf in order to actuate its movement from the locking position to the release position during opening.
  • the lock further comprises a fastening base which can be associated with one of the walls inside the compartment, from which an abutment tooth protrudes with which said detent engages in the locking position in order to prevent the accidental opening of the leaf.
  • the abutment tooth is shaped with a first surface, which in use is directed toward the leaf and acts as a ramp to guide the detent from the locking position to the release position, and a second surface, which is arranged opposite the first one and is directed, in use, toward the inside of the compartment and forms an undercut for the engagement of the detent in the locking position.
  • the detent initially in the locking position, slides on the first surface of the abutment tooth, moving into the release position to pass beyond said tooth and return to the locking position by virtue of the elastic contrast means, engaging with the corresponding second surface in order to hinder the opening of the leaf of the piece of furniture.
  • the external surface of the leaf is generally associated with profiled elements or handles which partially cover the second end of the lever and the slot at which the supporting plate of said lever is applied.
  • concealed locks with push opening which do not have components that are visible from the outside of the leaf and are released following a pressure applied to said leaf in the direction of approach to the structure of the piece of furniture.
  • the aim of the present invention is to eliminate the drawbacks noted above of the background art by devising a lock with automatic closure and push opening that allows to obtain a stable closed locking in order to avoid accidental openings, without requiring the execution of particular provisions on the leaf or the fitting of additional components.
  • an object of the present invention is to devise a lock that has no elements that protrude or are in any case visible outside the leaf and to not require the fitting of additional components for covering and/or protecting said lock which are visible externally to the piece of furniture, so as to allow concealed fitting on the leaf.
  • a further object of the present invention is to devise lock that ensures reliable closed locking so that it can be used for pieces of furniture of campers, caravans, trucks, boats and vehicles in general.
  • Another object of the present invention is to devise a lock that is practical to release, in order to allow to open the piece of furniture, and to be sturdy in case of incorrect use.
  • Not least object of the present invention is to provide a lock that is simple, relatively easy to provide in practice, safe in use, effective in operation, and relatively low in cost.
  • the reference numeral 1 generally designates a lock with automatic closure and push opening.
  • the lock 1 comprises a supporting body 2 associated with a lever 3, which supports a detent element 4 which oscillates between a locking position and a release position, and with first elastic means 5 for keeping the lever 3 in the locking position.
  • the supporting body 2 in use, is associated with a closure leaf 101 of a compartment of a piece of furniture with the detent element 4 directed toward it.
  • the leaf 101 is generally constituted by a substantially plate-like element provided with two mutually opposite main faces, of which one is exposed and directed toward the outside of the piece of furniture and one is internal and faces the compartment of the piece of furniture.
  • the supporting body 2 in use, is applied to the internal face of the leaf 101 by means of screws or other connecting elements of a known type.
  • the piece of furniture comprises a structure provided with walls 102 which form said compartment and with which the closure leaf 101 is associated and articulated, being movable between a closed configuration, in which it is adjacent to the structure of the piece of furniture so as to occlude the compartment, and an open configuration, in which it is rotated and lifted upward so as to allow access to said compartment.
  • the leaf 101 is associated with the structure of the piece of furniture by means of one or more hinges, not shown since they are of a known type, which define a substantially horizontal movement axis.
  • the hinges can be of the type of conventional snap-acting hinges, with return springs and an optional damper which act on closure.
  • a gap remains between the leaf 101 and the structure of the piece of furniture in order to allow the movement of the leaf toward the structure following a pressure applied by a user thereto to release the lock 1.
  • Compressible infilling elements can be provided between the structure of the piece of furniture and the leaf 101.
  • the lock 1 can be paired with conventional pins with a contrast spring which are mounted inside the structure of the piece of furniture in order to keep the gap in the closed configuration of the leaf 101 and prevent the lock 1 from opening accidentally, for example, in the case of heavy leaves which on closure might bring the detent element 4 directly to the release position, without stopping in the equilibrium position.
  • the supporting body 2 comprises a fixing plate 8, which can be associated so as to adhere to the internal face of the leaf 101, and a bushing 9, which protrudes from said plate on the opposite side with respect to the one intended to face the leaf 101, to which the lever 3 is hinged about a first hinge pivot 10.
  • the lever 3 has a portion inserted in the bushing 9 in order to mate with the first pivot 10 and a portion which protrudes from the bushing and with the end of which the detent element 4 is associated.
  • tabs for supporting the first pivot 10 which protrude from the fixing plate 8 might be provided.
  • the lever 3 does not protrude with respect to the fixing plate 8 on the opposite side with respect to the detent element 4, so as to allow concealed mounting inside the leaf 101.
  • the fixing plate 8 can be fitted to the leaf by means of threaded elements or other connecting elements of a known type, not shown.
  • the first elastic means 5 have an elastic compression element, of the type of a helical spring or the like, interposed between the lever 3 and the internal wall of the bushing 9 below said lever.
  • the first elastic means 5 might have an elastic traction element, of the type of a helical spring or the like, interposed between the lever 3 and the internal wall of the bushing 9 above said lever.
  • a stroke limit abutment 11 can be provided which protrudes from the internal wall of the bushing 9 in order to limit the inclination of the lever 3.
  • the stroke limit abutment 11 can be of an adjustable type and can be constituted by a screw or grub in which the stem protrudes inside the bushing 9, as shown, or can be constituted by a fixed element which protrudes from the internal wall of said bushing.
  • the lock 1 comprises a coupling assembly 6 which comprises an abutment profile 7 of the detent element 4 in the locking position in order to hinder the opening of said lock.
  • the coupling assembly 6 is designed to be associated with one of the walls 102 of the piece of furniture that define the compartment.
  • the coupling assembly 6 can be applied to the horizontal back wall of the compartment, but it might also be associated, for example, with one of the vertical walls.
  • the detent element 4 can move in an insertion direction, indicated by the arrows designated by the letter I in the figures, with respect to the coupling assembly 6 until it passes beyond the abutment profile 7.
  • the coupling assembly 6 further comprises means 12 for moving the detent element 4 toward the release position, which are adapted to cooperate with said element during movement in the insertion direction I downstream of the abutment profile 7, and means 13 for retention of the detent element 4 in the release position during its movement in an extraction direction, designated by the arrows marked with the letter E in the figures, which is opposite with respect to the insertion direction I, relative to the coupling assembly 6 during opening.
  • the coupling assembly 6 comprises a frame 30 provided with a fastening base 14 which in use is mounted on the wall 102 by means of threaded elements 32 or other connecting elements of a known type.
  • the fastening base 14 further has a face that can be associated with the wall 102 so as to adhere to it.
  • the abutment profile 7, the movement means 12 and the retention means 13 are associated with the frame 30 at the face of the fastening base 14 that is opposite the one that is associable with the wall 102.
  • the frame 30 comprises a pair of sides 15 that protrude from the fastening base 14 at the corresponding face that is opposite to the one associable with the wall 102.
  • the abutment profile 7 is interposed between the sides 15.
  • the abutment profile 7 is formed by a pivot interposed between the sides 15, but it is not excluded that it might be shaped differently.
  • the movement means 12 and the retention means 13 also are associated with the sides 15.
  • the movement means 12 comprise a pusher profile 16 adapted to cooperate with the detent element 4.
  • the detent element 4 can move in the insertion direction I and is adapted to abut against the pusher profile 16 to reach an equilibrium position comprised between the locking position and the release position in the closed configuration of the lock 1.
  • the pusher profile 16 is arranged downstream of the abutment profile 7 in the insertion direction I, so that the detent element 4 interferes during closure first with the abutment profile 7 and then with the pusher profile 16 during movement in the insertion direction I, stopping in the equilibrium position in the closed configuration of the lock 1.
  • the movement means 12 comprise barrier means 17, comprising an element 18 which is movable between an active position and a passive position and is adapted to abut in the active position against the detent element 4 in the equilibrium position, and second elastic means 19 for keeping the movable element 18 in the active position.
  • the detent element 4 is adapted to press on the movable element 18, moving from the active position to the passive position following a further movement in the insertion direction I from the equilibrium position toward the release position, and the movable element 18 being adapted to return to the active position following the arrangement of the detent element in the release position to prevent its return to the locking position.
  • the detent element 4 When, with the lock 1 in the closed configuration, pressure is applied to the leaf 101, the detent element 4 performs a further movement in the insertion direction I, cooperating as described above with the barrier means 17 so as to allow the opening of said lock.
  • the detent element 4 cooperates with the retention means 13 to contrast the action of the first elastic means 5 and remain in the release position while it is moved in the extraction direction E, until the lock 1 reaches the open configuration.
  • the retention means 13 comprise at least one guide 20 for the movement in the extraction direction E of the detent element 4 in the release position.
  • the retention means 14 comprise a bridge element 21 associated with the at least one guide 20.
  • the bridge element 21 is arranged above the abutment profile 7.
  • the abutment profile 7 is interposed between the fastening base 14 and the bridge element 21.
  • the bridge element 21 can be blended with the sides 15 and be integrated with the frame 30 or be arranged between said sides.
  • the retention means 13 comprise at least one tab 22 which is associated with the detent element 4 and is arranged so as to rest slidingly along the at least one guide 20 during the opening of the lock 1.
  • the tab 22 is kept in contact with the corresponding guide 20 by virtue of the action of the first elastic means 5.
  • the retention means 13 comprise two guides 20 associated with the bridge element 21 and two tabs 22 associated with the detent element 4, each of which is arranged so as to rest slidingly along a corresponding guide 20 during opening.
  • the two tabs 22 can be obtained from a preferably metallic pivot which is inserted so as to pass through the detent element 4 and protrudes laterally with respect to it, or they can be formed integrally with said detent element.
  • the pusher profile 16 can move with respect to the frame 30 and incorporates the movable element 18.
  • the movable pusher profile 16-18 is hinged to the sides 15, the second elastic means 19 being interposed between the movable pusher profile 16-18 and the frame 30.
  • the movable pusher profile 16-18 is hinged about a second pivot 31 for articulation with respect to the sides 15.
  • the second elastic means 19 can have an elastic compression element, of the type of a helical spring or the like, interposed between the movable pusher profile 16-18 and the sides 15, which is compressed when said profile moves from the active position to the passive position.
  • the second elastic means 19 might provide an elastic traction element, of the type of a helical spring or the like, interposed between the movable pusher profile 16-18 and the fastening base 14, which is tensioned when said profile moves from the active position to the passive configuration.
  • the movable pusher profile 16-18 comprises two mutually opposite wings 23, each of which is arranged so as to face the inside of a corresponding side 15 and is hinged to the second pivot 22, and between which an abutment ramp 24 of the detent element 4 is interposed.
  • Each wing 23 has a protrusion 25 adapted to abut against a stroke limit pin 26 interposed between the sides 15 when the movable pusher profile 16-18 is in the active position.
  • the stroke limit pin 26 is preferably covered with, or integrally made of, impact-resistant material in order to reduce the noise of the lock 1 during operation.
  • the pusher profile 16 can be fixed with respect to the frame 30.
  • the pusher profile 16 is interposed between the sides 15 and is fixed with respect to them.
  • the pusher profile 16 can be constituted by a fixed pin or by a fixed wall interposed between the sides 15, against which the detent element 4 abuts in the locking position and movable in the insertion direction I to reach the equilibrium position.
  • the movable element 18 comprises a torsion spring which has a fixed leg and a movable leg with respect to the frame 30, against which the detent element 4 abuts in the equilibrium position, the torsion spring 18 also incorporating the second elastic means 19.
  • the torsion spring 18-19 is wrapped around a supporting pin 27 interposed between the sides, with the fixed leg locked between two abutment pins 28 interposed between the sides 15.
  • the pusher profile 16 is constituted by a fixed pin which is interposed between the sides 15 and is arranged between the abutment profile 7 and the movable leg of the torsion spring 18-19.
  • the bridge element 21 can be movable with respect to the frame 30 and can incorporate the movable element 18.
  • the movable bridge element 18-21 is interposed between the sides 15 and is hinged with respect to them about a third articulation pivot 29, the second elastic means 19 being interposed between the movable bridge element 18-21 and the frame 30.
  • the pusher profile 16 consists of a wall interposed between the sides 15.
  • the second elastic means 19 comprise an elastic traction element, of the type of a helical spring or the like, interposed between the movable bridge element 18-21 and the frame 30.
  • the second elastic means 19 comprise an elastic compression element, of the type of a helical spring or the like, interposed between the movable bridge element 18-21 and the frame 30.
  • the described invention achieves the intended aim and objects and in particular the fact is stressed that the lock according to the invention allows to obtain a safe and reliable locking in closure and easy push opening, being practical to use even for pieces of furniture intended to be installed in vehicles.
  • the lock according to the invention can be installed without performing particular provisions on the closure leaf and without necessarily having to install covering and protection elements that are visible outside the leaf.
  • the lock according to the invention in addition to simplifying the entire production cycle of the piece of furniture in which it is inserted, reducing its costs, allows to perform concealed fitting so as to be able to provide leaves without discontinuities.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
  • Hinges (AREA)
EP22186967.0A 2021-08-03 2022-07-26 Serrure avec fermeture automatique et ouverture par poussée Pending EP4141205A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102021000020888A IT202100020888A1 (it) 2021-08-03 2021-08-03 Serratura con chiusura automatica e apertura a pressione.

Publications (1)

Publication Number Publication Date
EP4141205A1 true EP4141205A1 (fr) 2023-03-01

Family

ID=78463742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22186967.0A Pending EP4141205A1 (fr) 2021-08-03 2022-07-26 Serrure avec fermeture automatique et ouverture par poussée

Country Status (2)

Country Link
EP (1) EP4141205A1 (fr)
IT (1) IT202100020888A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116101105A (zh) * 2023-03-09 2023-05-12 安徽金电新能源科技有限责任公司 一种带有防爆结构的160kw直流快充充电桩

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357803B1 (en) * 1999-03-10 2002-03-19 Electrolux Siegen Gmbh Security lock, for doors in installation/mounting in caravans in particular
FR2899624A1 (fr) * 2006-04-11 2007-10-12 Renault Sas Agencement d'un ouvrant sur un support
US20140183899A1 (en) * 2012-11-28 2014-07-03 GM Global Technology Operations LLC Flap assembly for a motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6357803B1 (en) * 1999-03-10 2002-03-19 Electrolux Siegen Gmbh Security lock, for doors in installation/mounting in caravans in particular
FR2899624A1 (fr) * 2006-04-11 2007-10-12 Renault Sas Agencement d'un ouvrant sur un support
US20140183899A1 (en) * 2012-11-28 2014-07-03 GM Global Technology Operations LLC Flap assembly for a motor vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116101105A (zh) * 2023-03-09 2023-05-12 安徽金电新能源科技有限责任公司 一种带有防爆结构的160kw直流快充充电桩

Also Published As

Publication number Publication date
IT202100020888A1 (it) 2023-02-03

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