Key Tool Orthogonal Pin Decoding for Complex Locks
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Solution Overview
Problem
Existing lock decoding tools are inadequate for unlocking complex locks with significant height differences between code plates, as they allow limited pin excursion and are ineffective on reinforced locks with multi-point locking systems.
Innovation Solution
A key tool with a handle and decoding element featuring a translating support, laminar body, and a box with pins that can translate orthogonally to create a profile matching the original key, allowing for increased pin excursion and adaptation to complex locks through a combination of notches and protrusions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a decoding device with limited pin excursion is used, then the device structure is simple, but it cannot decode locks with large height differences between code plates
Solution Approach 1:
The patent introduces a second translational degree of freedom by coupling the box to the laminar body, allowing the pins to move both along the longitudinal axis and orthogonally. This dimensional expansion enables the pins to traverse larger height differences between code plates while maintaining a relatively compact overall structure.
Solution Approach 2:
The decoding element is divided into functionally independent components: the support for positioning, the laminar body for orthogonal translation, and the box for housing pins. This segmentation allows each component to specialize in a specific motion function, achieving large pin excursion without requiring a monolithic complex structure.
2Productivity
If traditional decoding devices are used on reinforced locks with multi-point locking, then the lock structure remains intact, but unlocking time is excessive
Solution Approach 1:
The patent enables continuous pin engagement with the lock's internal profile through the coupled translational mechanism. As the laminar body translates orthogonally, the box and pins continuously track the code plate heights without interruption, maintaining constant contact and eliminating the need for repeated trial insertions, thus reducing unlocking time while preserving lock integrity.
3Length of moving object
If pins are arranged to slide with friction in the box, then the pins maintain position stability, but the pin excursion range is limited
Solution Approach 1:
By coupling the box to the laminar body, the patent adds an orthogonal translation dimension to the pin motion. The pins can now excursion along the longitudinal axis while simultaneously moving orthogonally through the box, effectively doubling the usable excursion range without compromising position stability through the maintained friction-based sliding contact.
Data Source
Figure 1~3
Figure 3A~3E
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AI summary
A key tool arranged to decode an internal profile of a lock, said key tool having a longitudinal axis and comprising a handle (2) comprising a grip (34) and a translating element (27) for carrying out a relative translation with respect to the grip (34) along the longitudinal axis. The key tool also comprises a decoding element (1) passing through the translating element (27), said decoding element (1) comprising a support (3,3') having a first end integral to the translating element (27) and comprising a transversal hole (9,9'), a laminar body (4,4') integral with respect to the longitudinal axis to the grip (34) and arranged to translate with respect to the support (3,3') when the translating element (27) carries out the relative translation with respect to the grip (34), a box (11,21) arranged in the transversal hole (9,9') and arranged to house a plurality of pins (15,19) disposed parallel to each other and perpendicular to the longitudinal axis, each pin (15,19) arranged to slide with friction along its own direction with respect to the box (11,21). In particular, the laminar body (4,4') comprises at least one notch (13) not parallel to the longitudinal axis and the box (11,21) comprises a protrusion (12) arranged to slide in the notch (13) to make the box translating orthogonally to the longitudinal axis when the laminar body (4,4') translates with respect to the support (3,3'). The key tool is therefore configured in such a way that when the support (3,3') is inserted in the lock and the translating element (27) carries out the relative translation, bringing the laminar body (4,4') to translate with respect to the support (3,3'), the box (11,21) translates carrying the pins (15,19) to beat against the internal profile of the lock, creating a profile identical to that of an original key of the lock.