EP0771918A2 - Serrure de sécurité pour porte avec une serrure cylindrique - Google Patents

Serrure de sécurité pour porte avec une serrure cylindrique Download PDF

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Publication number
EP0771918A2
EP0771918A2 EP96830541A EP96830541A EP0771918A2 EP 0771918 A2 EP0771918 A2 EP 0771918A2 EP 96830541 A EP96830541 A EP 96830541A EP 96830541 A EP96830541 A EP 96830541A EP 0771918 A2 EP0771918 A2 EP 0771918A2
Authority
EP
European Patent Office
Prior art keywords
casing
lock
safety
cylinder lock
bolt
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Withdrawn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
EP96830541A
Other languages
German (de)
English (en)
Other versions
EP0771918A3 (fr
Inventor
Alberto Guzzinati
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.)
Mottura Serrature di Sicurezza SpA
Original Assignee
Mottura Serrature di Sicurezza 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
Priority claimed from IT95TO000873A external-priority patent/ITTO950873A1/it
Priority claimed from ITTO960053 external-priority patent/IT1284351B1/it
Priority claimed from IT96TO000632 external-priority patent/IT1284688B1/it
Application filed by Mottura Serrature di Sicurezza SpA filed Critical Mottura Serrature di Sicurezza SpA
Publication of EP0771918A2 publication Critical patent/EP0771918A2/fr
Publication of EP0771918A3 publication Critical patent/EP0771918A3/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Withdrawn legal-status Critical Current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
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E05B9/041—Double cylinder 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
    • E05B63/0056—Locks with adjustable or exchangeable lock parts
    • E05B63/006—Locks with adjustable or exchangeable lock parts for different door thicknesses
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
    • E05B9/084—Fastening of lock cylinders, plugs or cores
    • 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
    • E05C9/047—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 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
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0017—Locks with sliding bolt without provision for latching

Definitions

  • the present invention relates to safety lock devices for doors of dwellings and the like, of the known type comprising a casing, which is to be fixed to the door, a bolt slidably mounted within the casing between a locking projecting position and an unlocking position retracted within the casing, a mechanism for driving the bolt, and a cylinder lock for controlling the bolt driving mechanism, said cylinder lock having a body which is received within a passage of complementar shape formed through the casing.
  • the object of the present invention is that of providing a safety lock device of the above indicated type which has particularly simple and inexpensive means for securing the body of the cylinder lock within said casing, which can be mounted and disassembled with easy and rapid operations and which provides a high level of safety.
  • the invention provides a safety lock device having the features indicated at the beginning of the present description and further characterized in that the body of the cylinder lock a member projecting transversally from one side thereof and in that said casing has a cavity provided for receiving said projecting member, said devoce further comprising a securing element screwed to said casing and having a portion for securing said projecting member within said cavity.
  • the device according to the invention is of the type in which, according to a technique conventional per se, the body of the cylender lock is secured within said casing by means of a transverse screw having one end screwed into one side of said body and is further characterized in that said screw constitutes said projecting member, so that said screw can be screwed into the body of the cylinder lock before said body is introduced into said passage formed through the casing, the portion of the screw which projects transversally from one side of said body being received into said cavity when said body is introduced into said passage.
  • the device according to the invention may use a transverse screw for locking the body of the cylinder lock which is relatively short, this screw being screwed, as indicated above, into the body of the cylinder lock before this body is introduced within the casing, differently from the conventional solutions, wherein said screw has a greater length and is introduced from one side of the casing so as to pass therethrough and engage the body of the cylinder lock after that this body has been introduced into its seat within the casing.
  • the device according to the invention is characterized by simpler and easier mounting and dismantling operations of the body of the cylinder lock.
  • the cylinder lock has at its end facing outwardly of the door a hole for the introduction of the key and at the opposite end, facing inwardly of the door, a hole for introduction of the key or, alternatively, a knob for operating the cylinder lock without the need of a key.
  • the knob which is connected to the cylinder of the lock must be mounted adjacent to the inner surface of the door, it is necessary to provide for various axial dimensions of the cylinder lock as a function of the thickness of the door.
  • the feature of Claim 6 solves this drawback.
  • Another particularly advantageous feature of the preferred embodiment of the present invention is that indicated in the annexed Claim 7. Due to this feature, the device according to the invention has a high level of safety against burglaries.
  • reference numeral 1 generally designates a safety lock device for a dwelling door.
  • the device 1 comprises a casing of sheet metal 2 which is to be fixed to the door structure.
  • Reference numeral 3 designates a latch element which is slidably mounted within a co-operating hole of a side wall 4 of the casing 2, between the projecting position shown in the figure, towards which it is elastically biased, and a position retracted within casing 2.
  • Reference numeral 5 designates four fingers forming the bolt of the device, which are slidably mounted within respective apertures in the wall 4 of casing 2, between a locking projecting position, shown in figure 1, and an unlocking position, retracted within casing 2.
  • Fingers 5 and latch element 3 are for cooperation with complementar seats provided in the fixed frame of the door.
  • a lever mechanism (not shown) for driving simultaneously the movement of the fingers 5 of the bolt, and an upper plate 6 and a lower plate 7 which are respectively to be connected to a vertical upper rod and a vertical lower rod cooperating with seats provided above the door and in the floor.
  • the details of construction of said mechanism inside the casing 2 are not shown in figures 1-3, since this mechanism can be made in any known way, and also because it does not fall, taken alone, within the scope of the present invention, and finally also because the deletion of these details from the drawings renders the latter simpler and easier to understand.
  • a cylinder lock 8 of a type known per se, comprising a body 9 with a rotatable cylinder 8a which is for cooperation with a key (not shown). Also with regard to the cylinder lock, the details relating to the inner structure are not shown, since this lock can be made in any known way. Also in a way known per se, the body 9 of lock 8 is mounted within a passage 10 with a corresponding shape which is formed in the casing 2.
  • the body 9 of the cylinder has a transverse threaded hole 11 which receives the threaded end of a screw which is inserted through casing 2 from a hole formed in wall 4.
  • the body 9 of the cylinder lock 8 is also provided with a threaded transverse hole 11, but the screw which engages this hole is a short screw 12 with an hexagonal head, which is screwed into body 9 before the body is inserted into passage 10 (and not after this insertion, as in the conventional solutions).
  • the front wall of casing 2 is provided with a cavity 13 having a shape corresponding to the shape of the portion of the screw 12 which projects outwardly from body 9. Screw 12 is held within cavity 13 by a stud 14 projecting from a stop plate 15 having two holes 16 for engagement of two screws 17 which are screwed within corresponding seats 18 provided in casing 2.
  • screw 12 is in contact, inside casing 2, with a fixed stud 26 (figure 3) similar and opposite to stud 14.
  • the screws 17 pass also through two spacer bushes 19, which are connected to a plate 20 which is thus fixed to the stop plate 15 at a distance therefrom (figure 2), this distance corresponding to the thickness of the door on which the device 1 is mounted.
  • Plate 20 is further covered by a decorative plate 21 which, similarly to plate 20 and stop plate 15, has a central aperture 22 with a shape corresponding to the cross-section of body 9 of the cylinder lock 8, to enable this element to be mounted over body 9.
  • Screws 17 pass through the spacer bushes 19, holes 16 of the stop plate 15, the through seats 18 provided in casing 2 and are screwed within two threaded holes 23 formed in a cylindrical body 24 fixed on the side of the casing 2 facing outwardly of the dwelling and having a central seat 25 which receives the end of body 9 of the cylinder lock 8 which projects outwardly from casing 2, so as to act as a protection and a reinforcement therefor.
  • the device according to the invention does not require the use of a transverse screw for securing the body of the cylinder lock which passes through casing 2 of the lock starting from its side wall 4.
  • a transverse screw for securing the body of the cylinder lock which passes through casing 2 of the lock starting from its side wall 4.
  • a short screw 12 which is screwed to body 9 before the latter is inserted into passage 10 and is received in a corresponding cavity 13 of the casing 2 and locked within this cavity by fixing a stop plate 15 to casing 2 by screws.
  • the mounting and dismantling operations of the body of the cylinder lock are particularly simple, easy and rapid.
  • Figures 4,5 show a variant of the device according to the invention which can be operated from inside the door by a knob.
  • the casing of the device is fitted between two panels D1 and D2 constituting the door.
  • the body 9 of the cylinder lock has an axial length substantially corresponding to the overall thickness of the door.
  • the portion of body 9 of the cylinder lock which projects from the sheet metal casing 2 on the outer side of the door is received within the cavity 25 of the cylindrical body 24 of hard material which on its turn is housed within an aperture 50 of panel D1.
  • the portion of body 9 of the cylinder lock which projects from casing 2 is received within an aperture 51 of panel D2.
  • the spacer bushes 19 serve for positioning plate 20 at a distance from casing 2 and flush with the inner surface of the door.
  • a knob K serving for driving the cylinder lock from inside the door, without the need of a key.
  • the body 9 of the cylinder lock 8 is provided with a rotatable stem 8b projecting axially from body 9.
  • stem 8b is provided with a maximum standardized length.
  • the stem can be cut at any lower desired length, as a function of the door thickness. It is thus possible to provide a single lock model, without providing different variants as a function of the possible different thickness of the door on which the device must be mounted.
  • FIGS. 6-8 show a further embodiment of the lock device according to the present invention.
  • reference numeral 1 designates the sheet metal casing of the lock according to the invention, constituted by a rectangular box of sheet metal 2 closed on a front side by a lid 3.
  • the casing 2 has an aperture 4 which enables the body 5 of a cylinder lock to be introduced therein, in the manner which has been described above.
  • a side screw 6 which is received and held in a respective seat within the casing 2 (see also figure 7) by a stud 7 (see figure 6) projecting from a plate 8 which is screwed into the body of casing 2 by screws 9, with the interposition of two spacer cylinders 10 carried by a plate 11 and with the addition of an outer decorative plate 12.
  • a protective cylinder 13 on the outer side of the lock, i.e. on the side which is to be on the outer side of the door there is mounted a protective cylinder 13 with a passage 14 for receiving the key 15.
  • the safety lock comprises a bolt generally designated by 16, comprising a plurality of cylindrical fingers 17 movable between a position projecting from casing 2 (shown in figures 6-8), in which these fingers 17 are received within cooperating seats (not shown) formed in a support fixed to the frame of the door, to lock the door in the closed condition, and a position retracted within casing 2.
  • the fingers 17 are carried by a steel plate 18 which is slidably mounted inside casing 2 along the horizontal direction (with reference to figure 7) and is guided in its movement by pins 19 (one of which is visible in figure 7) carried by the casing 2 and engaged within horizontal slots 20 (one of which is visible in figure 7) formed in plate 18.
  • this lock includes a rotatable tooth 21 able to engage a rack 22 formed on the upper horizontal edge of an aperture 28 formed in plate 18.
  • the mechanism of the lock further includes a safety plate 23 which is slidably mounted inside the casing 2 along a direction perpendicular to the sliding direction of bolt 16, i.e. along a vertical direction, with reference to figure 7.
  • the safety plate 23 is guided in this movement by the engagement of fixed pins 19 inside vertical slots 24 formed in safety plate 23.
  • the safety plate 23 is biased by a spring 25 towards a position for locking the bolt 16. This locking effect is due to that a safety stud 26 carried by plate 18 of bolt 16 is locked within one of the vanes defined between the teeth 27 formed on one toothed edge of an aperture 28 formed in the safety plate 23.
  • the lock according to the invention provides on safety plate 23 a pair of appendages 30, which project from one edge 31 of the safety plate 23 and are arranged on both sides of the body of the cylinder lock 5.
  • the cylinder locks of the type commonly used in safety locks of the above indicated type have the feature of having a driving tooth 21 which partially projects on one side of the body of the cylinder lock 5 (as shown in figure 7) when the lock is in its neutral condition. Therefore, due to the provision of the two appendages 30, one of these appendages (the one which is on the side of body 5 of the cylinder lock from which the driving tooth 21 projects, which side can be different from one lock to the other) comes to be immediately adjacent to tooth 21, so that the latter acts as stop element, cooperating with one of said appendages 30, to prevent an unauthorized movement of the safety plate 23 towards the position enabling movement of bolt 16.
  • each appendage 30 is L-shaped, with a vertical portion and a horizontal portion which cooperates with said driving tooth 21.
  • the lock according to this embodiment of the invention due to the provision of the two appendages 30, provides a high degree of safety against burglaries, while avoiding excessive complication of the structure of the lock and with no substantial increase in the cost of manufacture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP96830541A 1995-10-31 1996-10-22 Serrure de sécurité pour porte avec une serrure cylindrique Withdrawn EP0771918A3 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
IT95TO000873A ITTO950873A1 (it) 1995-10-31 1995-10-31 Dispositivo di serratura di sicurezza per porte di abitazioni e simili con serratura a cilindro.
ITTO950873 1995-10-31
ITTO960053 1996-01-29
ITTO960053 IT1284351B1 (it) 1996-01-29 1996-01-29 Dispositivo di serratura di sicurezza per porte di abitazioni e simili con serratura a cilindro.
ITTO960632 1996-07-19
IT96TO000632 IT1284688B1 (it) 1996-07-19 1996-07-19 Serrature di sicurezza per porte di abitazioni e simili.

Publications (2)

Publication Number Publication Date
EP0771918A2 true EP0771918A2 (fr) 1997-05-07
EP0771918A3 EP0771918A3 (fr) 1997-05-14

Family

ID=27274183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830541A Withdrawn EP0771918A3 (fr) 1995-10-31 1996-10-22 Serrure de sécurité pour porte avec une serrure cylindrique

Country Status (1)

Country Link
EP (1) EP0771918A3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003046318A1 (fr) * 2001-11-26 2003-06-05 Mul-T-Lock Security Products Ltd. Amplificateur de verrouillage
EP1154102A3 (fr) * 2000-05-12 2003-11-05 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour portes de bâtiment ou similaires
EP2388419A1 (fr) * 2010-04-27 2011-11-23 BKS GmbH Serrure à mortaiser
GB2515054A (en) * 2013-06-12 2014-12-17 Fed Lock Co Ltd Safety lock core assembly
CN106285210A (zh) * 2016-09-21 2017-01-04 广东镖臣防盗设备有限公司 一种锁头防护盖

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309217U1 (de) 1992-06-22 1993-08-26 Tesio S.r.l., Torino Sicherheitsschloß

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516433C (de) * 1931-01-23 Bittmann & Co G M B H Zylinderschloss-Befestigung
DE537277C (de) * 1929-04-09 1931-10-31 Albert Kueppersbusch Fa Befestigung von Zylinderschloessern an Einsteckschloessern
DE663917C (de) * 1936-01-28 1938-08-17 Zeiss Ikon Akt Ges Goerzwerk An einem Tuerschloss zu befestigendes Zylinderschloss
US3233440A (en) * 1963-04-04 1966-02-08 Strauss Joel Adapter for rim cylinder locks, for door installation
FR2076491A5 (fr) * 1970-01-16 1971-10-15 Fichet Bauche
FR2632340A1 (fr) * 1988-06-07 1989-12-08 Chauvat & Sofranq Reunis Serrure a surete rapportee, munie d'une gorge incrochetable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309217U1 (de) 1992-06-22 1993-08-26 Tesio S.r.l., Torino Sicherheitsschloß

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1154102A3 (fr) * 2000-05-12 2003-11-05 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour portes de bâtiment ou similaires
WO2003046318A1 (fr) * 2001-11-26 2003-06-05 Mul-T-Lock Security Products Ltd. Amplificateur de verrouillage
EP2388419A1 (fr) * 2010-04-27 2011-11-23 BKS GmbH Serrure à mortaiser
GB2515054A (en) * 2013-06-12 2014-12-17 Fed Lock Co Ltd Safety lock core assembly
CN106285210A (zh) * 2016-09-21 2017-01-04 广东镖臣防盗设备有限公司 一种锁头防护盖

Also Published As

Publication number Publication date
EP0771918A3 (fr) 1997-05-14

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