EP1980692A1 - Lock arrangement - Google Patents

Lock arrangement Download PDF

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Publication number
EP1980692A1
EP1980692A1 EP08445011A EP08445011A EP1980692A1 EP 1980692 A1 EP1980692 A1 EP 1980692A1 EP 08445011 A EP08445011 A EP 08445011A EP 08445011 A EP08445011 A EP 08445011A EP 1980692 A1 EP1980692 A1 EP 1980692A1
Authority
EP
European Patent Office
Prior art keywords
lock
rail
force
lock rail
end position
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Withdrawn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
EP08445011A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jonas Herrmann
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.)
Assa Abloy Opening Solutions Sweden AB
Original Assignee
Assa AB
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 Assa AB filed Critical Assa AB
Publication of EP1980692A1 publication Critical patent/EP1980692A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • E05B63/24—Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them
    • E05B63/242—Auxiliary bolts on the frame, actuated by bolts on the wing, or vice versa
    • 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
    • E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
    • E05C19/163—Devices holding the wing by magnetic or electromagnetic attraction a movable bolt being held in the striker by a permanent magnet
    • 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
    • E05C9/02—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening
    • E05C9/026—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening comprising key-operated locks, e.g. a lock cylinder to drive auxiliary deadbolts or latch bolts
    • 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
    • E05B15/0073—Other details of locks; Parts for engagement by bolts of fastening devices means providing a stable, i.e. indexed, position of lock parts magnetically operated
    • 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
    • E05B2015/0448—Units of springs; Two or more springs working together

Definitions

  • the present invention relates generally to a lock arrangement and then in particular to a multipoint lock with an enhanced performance.
  • a so-called multipoint lock is a lock with which there are more than one lock point, i.e. a connection point between the door and doorframe.
  • Such locks are comprised with a number of arrangements, such as three interconnection arrangements that are simultaneously controlled by a lock unit or a handle. This can for example be achieved by means of a lock rail, which is movable in a vertical direction under the control of a locking device and which during movement acts one or more coupling arrangements.
  • the displacement of the lock rail can be achieved with as little force as possible for increasing the user friendliness and reduce the wear of the lock arrangement by which the lock rail is manoeuvred. It is at the same time important that the lock rail is returned to an open end position when the lock arrangement is unlocked by means of, for example, a spring force.
  • a spring force When this desire is achieved, for example, by means of a spring, there is however a risk that a key by which the lock arrangement is manoeuvred can not be taken out without exerting a rotational force on said key.
  • One object of the present invention is to provide a lock arrangement of the kind described in the introduction, which exhibits great user friendliness and durability.
  • the invention is based on the insight that one can arrange a power exerting means in the form of at least one magnet that non-linearly counteracts the spring force, that strives to move the lock rail to an unlocked end position.
  • a lock arrangement that includes a locking unit arranged to be mounted in a door, wherein said locking unit comprises a bolt that is rotatable between an open position and a locked position, a lock rail arranged to be mounted to a frame of said door, wherein the lock rail is linearly movable between a first and a second end position, and a spring which exerts a force on the lock rail in a direction towards the first end position, wherewith the lock rail comprises a groove in which the bolt engages when said bolt is in the locked position, when the lock rail is in the second end position.
  • the lock arrangement is characterized by at least one magnet which exerts a force on the lock rail in a direction towards the second end position, wherein the net force that is being exerted on the lock rail by the spring and the magnet is in a direction towards the first end position when the lock rail is in a position between the first end portion and a neutral position, and in a direction towards the second end portion when the lock rail is in a position between said neutral position and the second end position.
  • the lock arrangement comprises at least one magnet that is arranged to exert a force on the lock rail, in a direction towards the second end position. Due to the fact that a magnet is being used for achieving a force in a opposite direction to the spring force, there is achieved a number of special advantages.
  • the use of a magnet achieves directly, without other adaptations, that the counteracting force is non-linear.
  • the magnet gives under contact with a cooperating means such as another magnet or a member of magnetic material, a sufficiently large retentive force when the bolt and the lock rail are in their locked positions.
  • the force that is exerted by the magnet varies non-linearly in regard to the position of the lock rail in order to achieve a total non-linear force on the lock rail.
  • the lock arrangement preferably comprises one pair or multiple pairs of cooperating magnets which are cheap and easy to mount and which also does not take up a lot of space.
  • magnets are preferably mounted on a sliding block that is situated on the lock rail, wherein one can utilize existing parts for the mounting.
  • the lock arrangement preferably comprises an outer rail, in which the lock rail is slidably arranged which gives a compact solution, especially if some of the magnets are mounted to the outer rail.
  • a lock arrangement 10 comprises a lock unit in the form of a lock 12 that is mounted in the cabinet door 2.
  • the lock is of a conventional kind and includes a housing 12a with a rotatably mounted core therein, which when rotated causes a lock bolt 12b to be moved between a vertical and a horizontal position. Furthermore, there are two door hinges 14 attached to the inside of the cabinet door.
  • lock arrangement 10 comprises a rail construction 20 that is attached to the door frame on the inside of the side member 3.
  • the parts comprised in the rail construction 20 are shown in fig. 2 , wherein the two main parts are an outer rail 22 and a lock rail 24.
  • the outer rail 22 is made of a square tube made of, for example, aluminium that exhibits a number of through holes 22a for fixing screws.
  • a notch 22b is arranged for an injection moulded magnet holder 32, which is fastened to the outer rail.
  • the magnet holder functions in holding a number of force members in the form of magnets, preferably two magnets 32a, in place.
  • These magnets that can be made of neodym are, in a preferred embodiment, cylinder magnets with a diameter in the order of 5mm and a height of around 5mm.
  • outer rail presents two recessed and non-through notches 22c for a respective door fastener 14.
  • the outer rail also exhibits a notch for a bottom plate 30, whose function is to hold in place a biasing arrangement in the form of a spring 28.
  • Laminated plugs 34 are inserted into the end portions of the outer rail in order to protect against moisture and dirt as well as sabotage.
  • the lock rail 24 that is manufactured of a material of high durability, such as anticorrosion-tempered steel, exhibits a number of elongated holes 24a through which the fixing screws will extend. These holes also define the length of stroke for the locking, i.e. the maximal vertical movement of the lock rail between an upper end position, corresponding to an open position, and a lower end position, corresponding to a locked position. Furthermore there exist a number of holes for snap arrangements on a number of sliding blocks 26, that are mounted to the lock rail for guiding of its sliding movement.
  • the topmost sliding block shown furthest to the right in the figure, is arranged for the receiving of two force members in the form of magnets 26a of the same kind as the aforementioned magnets 32a.
  • the two magnets 32a in the magnet holder 32 are arranged to cooperate with the two magnets 26a in the sliding block, such as described below.
  • Two L-shaped notches 24c are arranged in the lock rail 24 with openings for the receiving of a respective door fastener 14. It is at these notches that two of the lock points are situated. Lastly the lock rail exhibits the notches 24d, 24e for a bolt and which correspond to the notches 22d, 22e in the outer rail.
  • the general function of the lock arrangement 1 is the following. In an unlocked position, see fig. 3a-c , the lock bolt 12b is in a vertical position and therefore does not interfere with the rail construction 20.
  • the lock rail 24 is freely movable relative to the door fasteners 14 due to the fact that the openings of the notches 24c are leveled with the respective door fastener. Therefore the cabinet door may freely be opened and closed with the lock arrangement in a position as shown in fig. 3a-c .
  • the aforementioned unwanted rotational force is avoided with the aid of a magnetic force that counteracts the force exerted by the spring 28, in such a way as will be described under the reference of fig. 7a-c and fig. 8 .
  • the spring 28 exerts an upwardly directed force F1 on the lock rail 24 with a strength that varies in proportion to the vertical position of said lock rail.
  • This force results in a downwardly directed force F2 on the lock rail that also varies depending on the vertical position of the lock rail, as is apparent in fig. 8 , to a maximum negative value that is lower than "-x".
  • the downwardly directed force F2 varies in a non-linear fashion in regard to the vertical position of the lock rail.
  • the net force, i.e. F1-F2 is also shown in this figure.
  • the spring 28 and the magnets are dimensioned and placed so that the net force is negative, i.e. directed downwardly between the locked position and the neutral position and positive, i.e. directed upwardly between the neutral position and the open position. This results in the following effect.
  • the spring 28 and the magnets 26a, 32a it is important that the spring is dimensioned so that it is able to return the lock rail to its upper end position with a good margin as well as not exerting a greater force than the force of attraction of the magnetic joint in the locked position. It is also important that the net force F1-F2 has a maximum value - positive or negative - that is not so great as to put up an uncomfortable resistance when the lock bolt 12b is being moved between a locked position and an open position.
  • lock rail 24 may be comprised of numerous parts that are assembled together by for example sliding blocks, which from a manufacturing view may be preferred.
  • a lock tong 12 has been shown and described as a locking unit.
  • this locking unit may be replaced by one of a different kind, such as a so-called coin lock, which is intended for receiving a coin in order to enable locking.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
EP08445011A 2007-03-21 2008-03-07 Lock arrangement Withdrawn EP1980692A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0700705A SE532727C2 (sv) 2007-03-21 2007-03-21 Låsanordning specifikt för ett flerpunktslås

Publications (1)

Publication Number Publication Date
EP1980692A1 true EP1980692A1 (en) 2008-10-15

Family

ID=39714029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08445011A Withdrawn EP1980692A1 (en) 2007-03-21 2008-03-07 Lock arrangement

Country Status (2)

Country Link
EP (1) EP1980692A1 (sv)
SE (1) SE532727C2 (sv)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR328071A (fr) * 1902-08-28 1903-10-21 Appert Gabriel Alexandre Système de fermeture de sureté pour portes en tous genres
US2219186A (en) * 1938-11-02 1940-10-22 Gen Electric Magnetic latch
GB2119846A (en) * 1982-05-12 1983-11-23 Norcros Investments Ltd Multi-point window or door fastening
NL8400566A (nl) * 1984-02-23 1985-09-16 Rijk Van Galen Vergrendeling voor een schuifdeur in een kozijn.
DE8613802U1 (de) * 1986-05-22 1986-10-09 Adolf Schween GmbH, 4600 Dortmund Bausatz für eine Schließstulpe für Türen und Fenster
WO1992003631A1 (en) * 1990-08-13 1992-03-05 David Doyle A self latching magnetic latching device
FR2806749A1 (fr) * 2000-03-21 2001-09-28 Michel Guy Rene Gelin Dispositif de renforcement de porte

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR328071A (fr) * 1902-08-28 1903-10-21 Appert Gabriel Alexandre Système de fermeture de sureté pour portes en tous genres
US2219186A (en) * 1938-11-02 1940-10-22 Gen Electric Magnetic latch
GB2119846A (en) * 1982-05-12 1983-11-23 Norcros Investments Ltd Multi-point window or door fastening
NL8400566A (nl) * 1984-02-23 1985-09-16 Rijk Van Galen Vergrendeling voor een schuifdeur in een kozijn.
DE8613802U1 (de) * 1986-05-22 1986-10-09 Adolf Schween GmbH, 4600 Dortmund Bausatz für eine Schließstulpe für Türen und Fenster
WO1992003631A1 (en) * 1990-08-13 1992-03-05 David Doyle A self latching magnetic latching device
FR2806749A1 (fr) * 2000-03-21 2001-09-28 Michel Guy Rene Gelin Dispositif de renforcement de porte

Also Published As

Publication number Publication date
SE532727C2 (sv) 2010-03-23
SE0700705L (sv) 2008-09-22

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