Bolt Lock Blocking Geometry and Oblique Spring
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Solution Overview
Problem
Existing bolt locks face challenges in providing enhanced security against manipulation while ensuring that authorized users can unlock the bolt without complications, especially under conditions where a pulling force is exerted on the bolt due to external factors like weight or tensile stress.
Innovation Solution
The bolt lock incorporates a blocking geometry with a housing and latch blocking section that engages when a force counter to the bolt's introduction direction is applied, combined with an obliquely oriented biasing spring that allows authorized users to unlock the bolt without triggering the blocking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a blocking geometry is implemented to prevent manipulative unlocking, then security against manipulation is improved, but the complexity of the lock mechanism increases
Solution Approach 1:
The blocking section is integrated into the existing latch structure, merging the blocking function with the locking mechanism. The blocking section and latch form a unified component that performs both locking and blocking functions, avoiding the need for separate blocking mechanisms and reducing overall system complexity.
Solution Approach 2:
The blocking mechanism is designed to be dynamic rather than static. The blocking section automatically engages when pulling forces are applied and disengages when the latch moves to the unlocking position, allowing the lock to adapt its security level based on operational conditions without requiring complex control systems.
2Reliability
If a blocking geometry is implemented to prevent manipulative unlocking, then security against manipulation is improved, but the ease of operation for authorized users may worsen
Solution Approach 1:
The blocking section is designed to counteract pulling forces before they can trigger manipulative unlocking. By preemptively blocking the latch movement in the presence of tensile stress, the system prevents manipulation attempts from succeeding, while the oblique biasing spring ensures authorized users can still overcome this blocking through proper key operation.
Solution Approach 2:
The biasing spring is oriented obliquely to change the force parameters acting on the latch. This oblique orientation creates a force component that counteracts the blocking section's engagement, allowing authorized users to unlock the mechanism even when pulling forces are present, thus maintaining ease of operation under various conditions.
3Ease of operation
If the biasing spring is oriented obliquely to allow unlocking under pulling forces, then ease of operation is improved, but the force required to maintain the blocking geometry may increase
Solution Approach 1:
The biasing spring is oriented obliquely, introducing a dimensional change in the force application angle. This oblique orientation allows the spring force to have components in multiple directions, enabling the latch to overcome the blocking section's engagement force more easily during authorized unlocking operations.
Solution Approach 2:
The obliquely oriented biasing spring acts as an intermediary force element between the blocking section and the latch. It mediates the interaction by providing a force component that facilitates latch movement during authorized unlocking, reducing the direct force requirement between the blocking section and latch while maintaining effective blocking under pulling forces.
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
This solution effectively enhances security by making manipulative unlocking more difficult while ensuring that authorized users can unlock the bolt lock without complications, even under conditions of external pulling forces.
Implementation Method 1
The biasing spring is oriented at an angle such that the biasing spring biases the latch in the direction of the locking position and additionally biases the latch along the introduction direction of the bolt
Data Source
AI summary
A bolt lock comprises a lock body and a bolt which is lockable to the lock body. The lock body comprises a housing and a lock cylinder therein, a movable latch and a biasing spring. The housing comprises an introduction passage for the bolt. In a locking position, the latch engages a locking recess of the bolt and hereby locks the bolt. The biasing spring biases the latch in the direction of the locking position. The housing and the latch comprise a respective blocking section, wherein the blocking section of the housing and the blocking section of the latch are configured so as to engage with one another and hereby block the latch against movement from the locking position in the direction of an unlocking position, when a force, via the bolt introduced into the introduction passage, is exerted on the latch which is in the locking position, the force being counter to the introduction direction of the bolt. The biasing spring is oriented at an angle such that the biasing spring additionally biases the latch along the introduction direction of the bolt.