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Break-in resistant lock

A technology of locks and bolts, which is applied in the field of locks and can solve problems such as unreliability of double-edged key locks

Inactive Publication Date: 2013-01-02
CISA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although these hacking techniques are fairly sophisticated, they have a significantly higher chance of success, thus rendering essentially all double-edged key locks unreliable

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] Referring to the accompanying drawings, reference numeral 1 generally refers to an intrusion lock.

[0020] The lock 1 comprises a box-like body 2 housing a plurality of shaped plates 3 provided with a corresponding portion (not shown) adapted to detachably fit on a corresponding surface of a lever 4 which can be translates and supports at its free end 5 at least one locking bolt 6 retractable together with the lever 4 .

[0021] With particular reference to the embodiment shown in the drawings, the lever 4 (and its end 5) supports four locking bolts 6 parallel to each other.

[0022] Through the action of a key (not shown), the plate 3 can achieve vertical translation, and the plate 3 is designed to, when they rise, release the translation of the lever 4 and the lock bolt 6, thereby realizing their retraction and extension.

[0023] At least one plate 3 comprises at least one region 7 provided with at least one base 8 aligned with and close to at least one protrusion ...

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PUM

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Abstract

A break-in resistant lock (1), of the type which comprises a box-like body (2) for accommodating a plurality of contoured plates (3) provided with a respective portion which is suitable for detachable engagement on a corresponding area of a rod (4) which can perform a translational motion and supports, at its free end (5), at least one bolt (6) which can retract monolithically with the rod (4). The plates (3) can perform a vertical translational motion by way of the action of the key and release, when they are raised, the translational motion of the rod (4) and the bolts (6) for their retraction and protrusion. At least one of the plates (3) comprises at least one area (7) provided with at least one seat (8) which is aligned and proximate to at least one protrusion (9) which is shaped substantially complementarily with respect to the shape of the seat (8). The at least one plate (3) provided with the at least one seat (8) is able to oscillate, about a guiding pivot (10) rigidly coupled to the box-like body (2), from a first configuration for mutual engagement of the at least one seat (8) with the respective at least one protrusion (9), as a consequence of external break-in actions aimed at retracting the rod (4) and the bolts (6), in which translational motion of the plates (3) is not allowed and therefore the rod (4) is locked, to a second inactive configuration, in which the seat (8) and the protrusion (9) are spaced and the translational motion of the plates (3) is free and therefore the rod (4) can be extracted and retracted.

Description

technical field [0001] The invention relates to an anti-intrusion lock, especially a type of lock that can be opened with a double-edged key. Background technique [0002] The lock associated with the double-edged key consists of a box-like body with a base (which is arranged mainly transversely) into which the key is inserted. [0003] Once inserted, the key is arranged so that its coded portion is aligned with a plurality of coded discs (commonly denoted by the term "tumblers") which can perform partial translation in a predetermined direction. [0004] Rotation of the key within the base results in movement of the plate (tumbler), which matches disengagement of the lever (usually in contact with a barrier on the plate); this lever can be made to be effected by rotation of the key in the base panning. [0005] The locking bolt is fixedly connected to the front end of the driving rod; the translation of the driving rod makes the locking bolt protrude from the front edge o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05B21/00E05B63/00
CPCE05B35/083E05B21/00E05B63/0017
Inventor M·纳尔多尼F·弗斯缇尼
Owner CISA
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