EP2085544A1 - Serrure de sécurité - Google Patents

Serrure de sécurité Download PDF

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Publication number
EP2085544A1
EP2085544A1 EP08425057A EP08425057A EP2085544A1 EP 2085544 A1 EP2085544 A1 EP 2085544A1 EP 08425057 A EP08425057 A EP 08425057A EP 08425057 A EP08425057 A EP 08425057A EP 2085544 A1 EP2085544 A1 EP 2085544A1
Authority
EP
European Patent Office
Prior art keywords
actuation
bolt
casing
pin
safety lock
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Withdrawn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
EP08425057A
Other languages
German (de)
English (en)
Inventor
Pietro Tesio
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.)
Tesio SpA
Original Assignee
Tesio 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 Tesio SpA filed Critical Tesio SpA
Priority to EP08425057A priority Critical patent/EP2085544A1/fr
Publication of EP2085544A1 publication Critical patent/EP2085544A1/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Withdrawn legal-status Critical Current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
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/12—Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper
    • E05B63/126—Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper the bolt having an additional sliding bolt or movement

Definitions

  • the present invention relates to a safety lock comprising: a casing, at least one bolt, which is able to move with respect to the casing between an opening position and at least one closing position, and an actuation plate, which is able to move within the casing in a rectilinear direction of actuation and is connected to said bolt for moving the bolt from an opening position to at least one closing position and vice versa.
  • bolts of safety locks consist of sturdy metal pins that extend parallel to the direction of actuation of the plate and are fixed to said plate.
  • the object of the present invention is to provide a safety lock, which is designed to counteract any attempt at effraction that tend to deform the openable edge of the door and has a simple and inexpensive structure consisting of a small number of components.
  • said object is achieved by a safety lock having the characteristics forming the subject of Claim 1.
  • the lock 10 comprises a casing 12 with a generally flattened parallelepipedal shape, including a case 14 and a lid 16.
  • the case 14 has substantially the shape of a box with a side open and comprises a bottom wall 18 and four side walls 20, 22.
  • the lid 16 is fixed on the open side of the case 14 and extends parallel to the bottom wall 18.
  • An actuation plate 24 is housed within the casing 12.
  • the actuation plate 24 is constrained to the case 14 in such a way that it exclusively presents a movement in a rectilinear direction of actuation, indicated by the double-headed arrow 26.
  • the direction of actuation 26 is parallel to the bottom wall 12 and orthogonal to the larger side walls 20.
  • the actuation plate 24 comprises a rack formation 28, which cooperates with a key-operated actuation device (not illustrated), designed to control the movement of the plate 24 in the direction of actuation 26.
  • the lock 10 can be equipped with a key-operated actuation device of the cylinder type or else of the double-bit type.
  • the key-operated actuation device designed to control the movement of the plate 24 is not illustrated both to simplify understanding of the drawings and because it lies outside of the scope of the present invention.
  • the actuation plate 24 can be associated to any key-operated device designed to control movement of the plate in the direction of actuation 26.
  • the actuation plate 24 comprises two through slits 30, which extend in a direction orthogonal to the direction of actuation 26 and the function of which will emerge clearly in what follows.
  • the lock 10 comprises two bolts 32 configured as components separate from the actuation plate 24.
  • Each bolt 32 is substantially hook-shaped, with a main body 34 having a main axis parallel to the direction of actuation 26 and provided at one of its ends with a hook-shaped portion 36 that extends in a direction orthogonal to the direction of actuation 26.
  • Each bolt 32 comprises a plate 38 fixed to the internal end of the main body 34.
  • the plate 38 carries two pins 40, 42, the axes of which extend in a direction orthogonal to the bottom wall 18 and to the lid 16.
  • the bolts 32 extend through respective openings 44 formed in one of the two larger side walls 20.
  • the bottom wall 18 and the lid 16 are provided with two guide slits 46a, 46b, each of which has a first rectilinear stretch 48a, 48b parallel to the direction of actuation 26 and a second stretch 50a, 50b inclined with respect to the direction of actuation 26.
  • the guide slit 46a of the bottom wall 18 and the guide slit 46b of the lid 16 are set at a distance from one another in the direction of actuation 26b and in a direction orthogonal to the direction of actuation 26.
  • the pin 40 of each bolt 32 simultaneously engages the respective slit 30 of the actuation plate 24 and the respective slit 46a of the bottom wall 18.
  • the pin 42 of each bolt 32 engages the respective slit 46b of the lid 16.
  • the engagement between the pin 40 and the slit 30 constitutes a transmission device that imparts on each bolt 32 a movement of opening or closing according to the movement of the actuation plate 24 in the direction of actuation 26.
  • the engagement between the pin 40 and the slit 46a and between the pin 42 and the slit 46b of each bolt 32 constitutes a guide device that defines a pre-set path of movement of each bolt 32.
  • FIG. 3-7 The movement of the bolts 32 from the opening position to the closing position is illustrated in Figures 3-7 .
  • the side wall 20 of the lock 10 faces a fixed plate 52 forming part of the frame of the door.
  • the fixed plate 52 is provided with openings 54, within which the bolts 32 engage in the closing position.
  • the openings 54 preferably have the same shape and the same dimensions as the openings 44 of the wall 20.
  • Figure 4 shows the lock 10 in the open position. In this position, the bolts 32 are in their most retracted position. The bolts 32 project slightly from the openings 44 but do not engage the openings 54 of the fixed plate 52.
  • Figures 4-7 illustrate the positions of the lock 10 corresponding to subsequent throws of the key-operated actuation mechanism.
  • the lock 10 is designed to be used with a key-operated four-throw actuation mechanism, each throw corresponding to a rotation of 180° of the key.
  • Figures 4 and 5 illustrate the positions of the lock 10 respectively at the end of the first throw and of the second throw.
  • the pins 40 and 42 of each bolt 32 engage only the first rectilinear stretch 48a, 48b of the slits 46a, 46b. Consequently, during this movement the bolts 32 move exclusively in a rectilinear direction parallel to the direction of movement 26 of the actuation plate 24.
  • the hook-shaped portion of each bolt 32 extends through the respective opening 54 of the fixed plate 52.
  • FIGs 6 and 7 illustrate the lock 10 respectively at the end of the third and fourth throws of the key-operated actuation mechanism.
  • the pins 40, 42 of each bolt 32 engage the inclined stretches 50a, 50b of the slits 46a, 46b. Consequently, each bolt 32 moves in an inclined direction with respect to the direction of movement 26 of the actuation plate 24.
  • the movement of each bolt 32 along an inclined path carries the hook-shaped portions 36 into a position out of line with respect to the corresponding positions of the openings 54, as illustrated in Figures 6 and 7.
  • Figure 7 illustrates the lock in the completely closed position that is reached after four throws of the key-operated actuation mechanism.
  • hook-shaped portions 36 are out of line with respect to the corresponding openings 54. Consequently, any attempt at effraction that were to seek to force the vertical openable edge of the door away from the fixed plate 52 would bring the hook-shaped portions 36 into a condition of interference against the fixed plate 52.
  • the movement in the inclined direction of the bolts 32 is allowed by the fact that the slits 30 of the actuation plate 24 extend in a direction orthogonal to the direction of movement 26 of the actuation plate 24.
  • the pins 40, 42 of each bolt 32 are set at a distance from one another both in a direction parallel to the direction of actuation 26 and in a direction orthogonal to the direction of actuation 26. This enables the bolts 32 to be withheld with a stable orientation.
  • a particularly advantageous characteristic of the lock according to the present invention is the possibility of providing an alternative model of lock, in which the bolts 32 are fixed with respect to the actuation plate 24, keeping the structure of the lock substantially unvaried.
  • This variant (not falling within the scope of protection of the present invention) substantially corresponds to a traditional lock with purely rectilinear movement of the bolts.
  • a particularly advantageous feature is represented by the fact that it is possible to keep the major part of the structure of the lock 10 substantially unaltered to provide two different types of locks, one with purely rectilinear movement of the bolts and one with the inclined movement described previously and with greater security against effraction.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
EP08425057A 2008-01-31 2008-01-31 Serrure de sécurité Withdrawn EP2085544A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08425057A EP2085544A1 (fr) 2008-01-31 2008-01-31 Serrure de sécurité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425057A EP2085544A1 (fr) 2008-01-31 2008-01-31 Serrure de sécurité

Publications (1)

Publication Number Publication Date
EP2085544A1 true EP2085544A1 (fr) 2009-08-05

Family

ID=39720611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425057A Withdrawn EP2085544A1 (fr) 2008-01-31 2008-01-31 Serrure de sécurité

Country Status (1)

Country Link
EP (1) EP2085544A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB630379A (en) * 1947-03-18 1949-10-12 Ernest Cyril Hansor Improvements in locks
GB2217770A (en) * 1988-04-22 1989-11-01 Tseng Tsai Yu Anti-burglar lock
US5009089A (en) * 1989-10-31 1991-04-23 Lin Emily M Y Double hook-bolt unit lock
IT1319951B1 (it) 2000-03-10 2003-11-12 Tesio Srl Serratura di sicurezza per porte di abitazioni e simili.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB630379A (en) * 1947-03-18 1949-10-12 Ernest Cyril Hansor Improvements in locks
GB2217770A (en) * 1988-04-22 1989-11-01 Tseng Tsai Yu Anti-burglar lock
US5009089A (en) * 1989-10-31 1991-04-23 Lin Emily M Y Double hook-bolt unit lock
IT1319951B1 (it) 2000-03-10 2003-11-12 Tesio Srl Serratura di sicurezza per porte di abitazioni e simili.

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