Handcuff Ring Locking Groove for Enhanced Security
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Solution Overview
Problem
Conventional handcuffs are inconvenient to use due to the limited thickness and lateral location of the through hole for inserting a thin rod to push the stop portion, requiring users to turn the handcuffed person's wrist and making it difficult to facilitate enhanced locking.
Innovation Solution
A handcuff ring design with locking grooves on the front and/or rear sides, allowing for easier insertion of a thin rod to push the stop portion, enhancing the locking mechanism and user convenience by providing a larger area for rod insertion and improving the locking process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a through hole is provided in the lateral side of the stationary strand for inserting a thin rod to push the stop portion, then the locking mechanism can be enhanced, but the device becomes inconvenient to use due to limited thickness and lateral location requiring wrist rotation
Solution Approach 1:
The patent moves the access point for the thin rod from the lateral side (through hole in stationary strand) to the front or rear surface (locking groove). This dimensional change allows the thin rod to be inserted from a more accessible direction without requiring wrist rotation, resolving the contradiction between security enhancement and ease of operation.
Solution Approach 2:
The locking groove is pre-formed on the front or rear surface of the stationary strand, preparing the access path in advance. This preliminary action eliminates the need for complex lateral insertion and makes the enhanced locking feature readily accessible during normal use.
2Reliability
If the thin rod is inserted through a through hole in the lateral side, then the stop portion can be pushed to enhance locking, but the operation requires turning the handcuffed person's wrist which is inconvenient
Solution Approach 1:
By providing the locking groove on the front or rear surface rather than through the lateral side, the patent changes the insertion dimension. This allows the thin rod to be inserted directly without wrist rotation, saving time and improving operational efficiency while maintaining the enhanced locking function.
Solution Approach 2:
The locking groove is pre-configured on the accessible surface, eliminating the need for time-consuming wrist manipulation during the locking process. This preliminary preparation reduces operational time and maintains security enhancement.
3Length of stationary object
If the stationary strand has limited thickness, then the device remains compact, but the area for inserting the thin rod is limited making operation difficult
Solution Approach 1:
The patent circumvents the thickness limitation by moving the access point from the lateral dimension (through hole) to the front/rear surface dimension (locking groove). This allows adequate insertion area to be provided without increasing the thickness of the stationary strand, maintaining compactness while improving operability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design simplifies the locking process by allowing easier access to the stop portion through the locking grooves, enhancing security and user experience by preventing illegitimate opening attempts and reducing the need for wrist rotation during use.
Implementation Method 1
The elastic plate 13 is located in the receiving space 104 and can push the engaging element 12 elastically such that the engaging element 12 tends to rotate downward about its pivotal joint
Implementation Method 2
the key tooth 20 on the key 2 pushes the pushing portion 121 upward. Now that the engaging element 12 is pivotally provided in the receiving space 104, the key tooth 20 rotates, and causes upward displacement of, the engaging element 12 against the elastic force of the elastic plate 13
Implementation Method 3
The stop portion 14 can be displaced in the left-right direction, with the elastic plate 13 pressing against the stop portion 14. When the right end of the stop portion 14 abuts against the inner wall of the stationary strand 100, the first abutting portion 141 and the second abutting portion 122 abut against each other to prevent the engaging element 12 from being pushed upward
Data Source
AI summary
A handcuff ring with mechanism for enhanced locking includes a stationary strand and a movable strand. The stationary strand is provided therein with an engaging element, a stop portion, and an elastic element that is located between, and can push respectively, the engaging element and the stop portion. At least one locking groove is formed on the front side and/or the rear side of the stationary strand, and a thin rod, when being inserted from outside into the locking groove, can press an end of the stop portion to displace the stop portion toward a keyhole, so that the abutting portions of the stop portion and the engaging element abut against each other. Accordingly, through the locking groove(s) located on the front side and/or the rear side of the handcuff ring, a user can conveniently push the stop portion by the thin rod to finish the enhanced locking process.