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Break-in resistant lock

A technology of locks and deadbolts, applied in the field of locks, can solve problems such as unsafe double-edged key locks

Inactive Publication Date: 2011-04-13
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 insecure

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] With reference to the accompanying drawings, reference numeral 1 generally designates an anti-intrusion lock.

[0020] The lock 1 comprises a box-shaped body 2 for accommodating a plurality of shaped plates 3 provided with corresponding parts (not shown) adapted to be detachably engaged on corresponding areas of a movable lever 4, which The lever 4 bears at its free end 5 at least one bolt 6 retractable together with the lever 4 .

[0021] With particular reference to the embodiment shown in the figures, the lever 4 supports (with its end 5 ) four bolts 6 arranged in a parallel configuration.

[0022] Through the action of a key (not shown in the figure), each plate 3 is capable of a vertical translational movement, and the plates 3 are designed such that, when they rise, the translational movement of the lever 4 and thus of the bolt 6 is released movement, thereby carrying out their expansion and contraction.

[0023] At least one of the plates 3 consists of a respec...

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PUM

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Abstract

A break-in resistant lock (1) comprising 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 jointly with the rod (4). The plates (3) can perform a vertical translational motion by way of the action of the key and release the translational motion, when they are lifted, of the rod (4) and of the bolts (6) for their retraction and protrusion. At least one of the plates (3) is constituted by a respective rear plate (7) and by a respective front tumbler (8), which are mutually coupled by means of a complementary contoured portion provided on their mutually facing edges (9). The front tumbler (8) comprises a protruding arm (10), which is interposed between the front of the rear plate (7) and a protective housing (11). The arm (10) has a shape and dimensions which are complementary to the interspace provided between the plate (7) and the housing (11) to prevent the possibility to access the plate (7) with break-in tools.

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 main box-shaped body provided with a (generally transverse) base adapted to insert the key. [0003] Once inserted, the key is arranged with its coded portion aligned with a plurality of coded plates (often referred to as tumblers) that are capable of partial translation in a predetermined direction. [0004] The rotation of the key in the base causes the movement of the plate (the tumbler), which matches the disengagement of the lever (which usually has an interference fit with the plate): the lever can thus be made to move through the rotation of the key in the base Implement translational movement. [0005] The deadbolt is stably coupled to the front of the lever; the translational movement of the lever causes the deadbolt to protrude from th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B21/00E05B35/08
CPCE05B35/083E05B15/108E05B21/00
Inventor F·弗斯缇尼M·纳尔多尼
Owner CISA
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