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EP3647517A1 - Protection de verrou pour serrures avec une sécurité améliorée - Google Patents

Protection de verrou pour serrures avec une sécurité améliorée Download PDF

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Publication number
EP3647517A1
EP3647517A1 EP18204407.3A EP18204407A EP3647517A1 EP 3647517 A1 EP3647517 A1 EP 3647517A1 EP 18204407 A EP18204407 A EP 18204407A EP 3647517 A1 EP3647517 A1 EP 3647517A1
Authority
EP
European Patent Office
Prior art keywords
lock
main body
locking tongue
lock guard
guard
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Withdrawn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
EP18204407.3A
Other languages
German (de)
English (en)
Inventor
Muhammed BARIS
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.)
Kale Kilit Ve Kalip Sanayi AS
Original Assignee
Kale Kilit Ve Kalip Sanayi AS
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 Kale Kilit Ve Kalip Sanayi AS filed Critical Kale Kilit Ve Kalip Sanayi AS
Priority to EP18204407.3A priority Critical patent/EP3647517A1/fr
Publication of EP3647517A1 publication Critical patent/EP3647517A1/fr
Withdrawn legal-status Critical Current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
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/18—Closures or guards for keyholes shaped as lids or slides
    • E05B17/186—Closures or guards for keyholes shaped as lids or slides sliding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/142—Closures or guards for keyholes with key-operated locks, e.g. padlocks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B21/00—Locks with lamelliform tumblers which are not set by the insertion of the key and in which the tumblers do not follow the movement of the bolt e.g. Chubb-locks

Definitions

  • the present invention relates to a lock guard for a lock provided on a door or a window and more particularly relates to a lock guard, which prevents any unauthorized person to reach the lock.
  • Locks whether cam locks, cylinder locks or mortise locks are typically mounted with their key hole of a locking unit or access point directly exposed to the atmosphere and interference.
  • NL2013180 (B1 )
  • B1 relates to a security furniture for a key operated rim lock, comprising a rosette which is provided with a key hole.
  • the conventional type of lock guards and rosettes improve the protection of the lock and delays a break-in operation, it provides a good grip for a tool such as a clamp or the like, so that it is possible to tear it off and then easily access the cylinder.
  • the keyhole of the conventional locks is open to vandalism or sabotage coming from outside. Furthermore, when a more secure lock is needed, conversion of such existing locks is also relatively cumbersome and expensive, since the whole lock box must be replaced. It is needed to provide a rosette which prevents any illicit openings against locks and suitable for different shape and size of the locks.
  • Primary object of the invention is to provide a lock guard that can be easily attached to existing or new door locks with increased security against unauthorized opening of the lock.
  • Another object of the invention is to provide a lock guard, which prevents access to the lock by covering the key hole or access point of the lock.
  • Another object of the invention is to provide a lock guard, which is suitable to be attached different shape and size of the locks.
  • Another object of the invention is to provide a lock guard, which does not only protect the lock against illicit attempts, but also protects the lock mechanism against break-in attempts through the door.
  • the present invention proposes a lock guard for attaching on a lock, comprising: a main body having a plurality of plate tumblers and a key hole; an aperture formed in the main body for reaching a keyhole of the lock.
  • Said lock guard further comprises a bolt plate provided in the main body which is suitable to be triggered from the plurality of plate tumbler; an elevating member; a resilient member which is arranged to be pressed by the elevating member; a spring biased locking tongue arranged to move between a closed and an open position wherein the locking tongue is kept by the elevating member and is arranged to block the aperture of the main body to prevent access to the key hole of the lock in the closed position when in the closed position.
  • a lock guard (100) for attaching on a lock comprising: a main body (40) having a keyhole (12) for receiving a key (11) and an aperture (36) for reaching a keyhole of the attached lock, a plurality of plate tumblers (14) provided at the main body (40).
  • Said lock guard (100) further comprises: a bolt plate (13) which is suitable to be triggered from the plurality of plate tumbler (14), an elevating member (20) arranged to be in contact with the bolt plate (13), a resilient member (22) which is arranged to be pressed by the elevating member (20), a spring biased locking tongue (30) arranged to move between a closed and an open position wherein the locking tongue (30) is kept by the rotatably connected elevating member (20) and is arranged to block the aperture (36) of the main body (40) to prevent access to the key hole of the lock when in the closed position.
  • the locking tongue (30) is movably positioned on the main body (40) and is arranged move away from the main body (40) to open the aperture (36) fully when the locking tongue (30) is brought into the open position.
  • Said lock guard (100) is arranged to attach at an outer portion of the lock or like, and the aperture (36) of the main body (40) is aligned to reach said profiled lock cylinder.
  • said lock guard (100) can be used to protect the lock of door or windows or the like against any illicit openings.
  • Movably arranged locking tongue (30) is made of a material which is strong enough against any drilling or puncture such as metal, steel or the like. By covering the keyhole of the lock with the anti-drilling locking tongue (30) prevents unauthorized persons to reach the lock.
  • a plurality of plate tumblers are used as a locking unit.
  • “Plate lock”, “plate lock”, “double-sided lock” and “tumbler locks” which are widely practiced in the art and each lock of the above mentioned type can be opened/closed by a specific key (11) preferably provided with one sided tailpieces.
  • only the key (11) can open the lock guard (100) and the lock to be attached.
  • Every plate tumbler (14) has a window (16) in which a guiding pin (15) moves, when a suitable key (11) is inserted and turned in the lock guard (100). The guiding pin (15) passes through the windows (16) of all the plate tumblers (14).
  • Said guiding pin (15) guides through the window (16) of the plate tumblers (14) upon the turn of the key (11) and determines the position of the bolt plate (13).
  • the key (11) which has a preferably double bit with a certain profile of the recesses and projections is inserted inside the keyhole (12) and is rotated.
  • the key (11) is introduced into the keyhole (12) and rotated around its axis, the indented edges of the bitted key come into contact in succession with the edge portions of the plate tumblers (14).
  • the key's bits engage with the corresponding plate tumblers (14) and, if the key (11) has the right profiles, each plate tumbler (14) is moved until it is aligned.
  • Each plate tumbler (14) has a slit in which an arm of a spring (21) is attached and the other arm of the spring (21) abuts a central portion (28) of the elevating member (20).
  • the bolt plate (13) in a communication with the plate tumblers (14) mounted movable in the main body (40) and displaceable by means of rotation of the key (11) in the main body (40) between a first position and a second position corresponding, respectively, to the open condition and to the closed condition of the lock guard (100).
  • the bolt plate (13) is pressed by a bolt plate spring (17) which is in contact with a projection of the bolt plate (13).
  • the bolt plate spring can be designed to operate with a compression load, so the spring gets shorter as the load is applied to it.
  • said elevating member (20) can have a hollow central portion (28) of where the elevating member (20) is attached to the main body (40) and is arranged to pivot around said central portion (28).
  • the elevating member (20) is pivotal and has an upper arm (24) and a lower arm (25) where the lower arm is in contact with the spring biased bolt plate (13).
  • Fig. 1 shows a closed position of the lock guard (100) by covering the aperture (36) fully by eliminating access to the keyhole or the access point of the lock.
  • the upper arm (24) of the elevating member (20) can have a protrusion (26) to be in contact with the locking tongue (30) when the locking tongue (30) is in the closed position.
  • the locking tongue (30) has a tooth (27) as a part which extends from the elevating member (20) wherein the tooth (27) is shaped and dimensioned to engage with the protrusion (26) of the upper arm (24) of the elevating member (20) when the locking tongue (30) is brought into the closed position.
  • the tooth (27) and the spring biased upper arm (24) and the protrusion (26) thereof makes a contact with each other and the upper arm (24) keeps the locking tongue (30) within the main body by blocking access to the keyhole or the access point of the lock.
  • the bolt plate (13) is moved in a direction where the lower arm (25) of the elevating member (20) is pivoted and is pressed against the resilient member (22) provided in a spring housing (23) in the main body (40).
  • the tooth (27) and the locking tongue (30) are released and the locking tongue (30) is pushed away through a slot (41) of the main body (40) under the pressure of a tongue spring (32) which is in contact with the locking tongue with a tongue protrusion (33) provided on the locking tongue (30).
  • the tongue spring (32) is mainly arranged to push the locking tongue (30) out of the main body (40) one of its arm is in contact with said tongue protrusion (33).
  • Said tongue spring (32) has a spring arm (37) which is in contact with a tongue protrusion (33) provided on the locking tongue (30) to move the locking tongue (30) when released.
  • a central hollow portion of the tongue spring (32) can be attached to a tongue spring housing (34) such that said tongue spring (32) can make a pivotal movement around said tongue spring housing (34).
  • the locking tongue (30) is arranged to move in a direction parallel to the longitudinal axis of the main body (Y).
  • the locking tongue (30) when the locking tongue (30) is released and extended away from the main body (40), the user can push the locking tongue (30) and can bring in the closed position again by covering the aperture (36) and engaging the tooth (27) and the upper arm (24) as shown in Fig. 1 .
  • Said main body (40) further comprises at least one guiding member (50) for guiding in which the locking tongue (30) is guided in a vertical direction where the guiding member (50) can be attached to the main body (40) with at least one guiding connection member (51).
  • the guiding member (50) covers at least a portion of the locking tongue (30) in a vertical direction, such that the locking tongue (30) is smoothly aligned to move away from the slot (41) of the main body (40).
  • Said slot is shaped and sized with respect to the width and depth of the locking tongue (30).
  • Fig. 1 and 2 show the first embodiment of the lock guard (100) according to the present invention and Fig. 3 and 5 show the second embodiment of the lock guard (100) according to the present.
  • Second embodiment mainly differs that the outer periphery of the main body (40) is designed mainly elliptic whereas the first embodiment has a different main body which has an outer periphery expanding in the longitudinal direction.
  • outer part of the lock which is open to the outside can have a different shape and size
  • the main body (40) of the lock guard (100) is shaped and dimensioned enough to cover the whole outer part of the lock for blocking access to the lock.
  • the first embodiment of the invention can have at least one upper mounting hole (35) through which corresponding fastening means are attached as shown in Fig. 1 .
  • the main body (40) has more than one mounting hole (31) to be attached by fastening means such as a screw or the like.
  • the lock guard (100) can easily be attached to existing doors and can be fixed from inside with screws without changing the existing lock.
  • the entire lock guard (100) is designed as a ready-to-install unit that can be mounted on the outside of the door or the like regardless of the lock and lock unit used on the door.
  • the lock can made of metal, steel or the like.
  • the resilient member (22) can be a spring and is designed to operate with a compression load, so the spring gets shorter as the load is applied to it wherein the resilient member (22) is arranged in the housing (23) within the main body (40).

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  • Lock And Its Accessories (AREA)
EP18204407.3A 2018-11-05 2018-11-05 Protection de verrou pour serrures avec une sécurité améliorée Withdrawn EP3647517A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18204407.3A EP3647517A1 (fr) 2018-11-05 2018-11-05 Protection de verrou pour serrures avec une sécurité améliorée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18204407.3A EP3647517A1 (fr) 2018-11-05 2018-11-05 Protection de verrou pour serrures avec une sécurité améliorée

Publications (1)

Publication Number Publication Date
EP3647517A1 true EP3647517A1 (fr) 2020-05-06

Family

ID=64172402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18204407.3A Withdrawn EP3647517A1 (fr) 2018-11-05 2018-11-05 Protection de verrou pour serrures avec une sécurité améliorée

Country Status (1)

Country Link
EP (1) EP3647517A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US756434A (en) * 1902-09-20 1904-04-05 Paul Tropp Lock.
US1124373A (en) * 1912-11-15 1915-01-12 Ira W Wilson Door-lock.
US1259128A (en) * 1917-06-23 1918-03-12 David H Pingree Lock.
DE3727925A1 (de) * 1987-08-21 1989-03-02 Melchert Beschlaege Beschlag fuer mit einsteckschloessern ausgeruestete tueren oder dergleichen
FR2677069A1 (fr) * 1991-05-31 1992-12-04 Ramblier Yves Dispositif de protection d'une serrure, destine a rendre inaccessible aux tiers l'orifice d'entree de la cle ou de la commande permettant l'ouverture et la fermeture de ladite serrure.
WO2013033960A1 (fr) * 2011-09-05 2013-03-14 浙江鸿利锁业有限公司 Structure de serrure à lame incorporée dans un noyau de serrure à ressort, et sa clé
NL2013180B1 (en) 2014-07-14 2016-07-14 Assa Abloy Nederland B V Security furniture for a key operated rim lock.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US756434A (en) * 1902-09-20 1904-04-05 Paul Tropp Lock.
US1124373A (en) * 1912-11-15 1915-01-12 Ira W Wilson Door-lock.
US1259128A (en) * 1917-06-23 1918-03-12 David H Pingree Lock.
DE3727925A1 (de) * 1987-08-21 1989-03-02 Melchert Beschlaege Beschlag fuer mit einsteckschloessern ausgeruestete tueren oder dergleichen
FR2677069A1 (fr) * 1991-05-31 1992-12-04 Ramblier Yves Dispositif de protection d'une serrure, destine a rendre inaccessible aux tiers l'orifice d'entree de la cle ou de la commande permettant l'ouverture et la fermeture de ladite serrure.
WO2013033960A1 (fr) * 2011-09-05 2013-03-14 浙江鸿利锁业有限公司 Structure de serrure à lame incorporée dans un noyau de serrure à ressort, et sa clé
NL2013180B1 (en) 2014-07-14 2016-07-14 Assa Abloy Nederland B V Security furniture for a key operated rim lock.

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