Pin Position Detector for Hinged Frame with Directional Analysis
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Solution Overview
Problem
Existing position detectors for mobile frame pins face challenges in reliably detecting the pin's position, especially at extreme positions, due to variations in pin travel across different frames and significant play within the frame, which is critical for security configurations.
Innovation Solution
A position detector with a housing attached to the frame edge, featuring a rod with a feeler end and an inner end, sensors within the housing that change state based on the rod's position, and an electronic analyzer that detects critical ranges to determine the pin's functional position, including a locking position, by monitoring changes in rod translation direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a position detector is installed on different types of frames, then the detector can be universally applied, but the pin travel varies significantly making reliable detection difficult
Solution Approach 1:
The detector uses a dynamic detection range that can adapt to different pin travel distances. The electronic analyzer is configured to detect when the rod enters a critical range and remains there for a predetermined time, allowing the system to accommodate varying travel distances while maintaining reliable detection of the locked position.
Solution Approach 2:
The system changes the detection parameter from fixed position to time-based confirmation. By requiring the rod to remain in the critical range for a predetermined time period, the system can reliably detect the locked position regardless of variations in total travel distance across different frame types.
2Adaptability or versatility
If the pin is allowed to move between positions with significant play, then the frame can accommodate manufacturing tolerances, but reliable detection of the locking position becomes difficult
Solution Approach 1:
The detector transitions from static position detection to dynamic time-based detection. The electronic analyzer monitors whether the rod remains in the critical range for a predetermined time, which filters out transient movements due to play while confirming genuine locking position achievement.
Solution Approach 2:
The system implements feedback through time-based confirmation. The electronic analyzer continuously monitors the rod position and only confirms the locked state after the rod has remained in the critical range for the predetermined time, providing reliable detection despite manufacturing tolerances and play.
3Device complexity
If the detector uses a simple rod and sensor system, then the device complexity is reduced, but the ability to detect critical positions accurately is compromised
Solution Approach 1:
The rod acts as an intermediary element that translates pin movement into detectable position changes. The rod's movement through the critical range provides a clear, detectable signal for the electronic analyzer, enabling accurate detection of the locked position while maintaining mechanical simplicity.
Solution Approach 2:
The system replaces complex mechanical position detection mechanisms with electronic sensing and time-based analysis. The electronic analyzer uses temporal information from sensor signals to determine position, substituting mechanical complexity with electronic processing while maintaining detection accuracy.
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 solution provides a reliable detection of the pin's position, ensuring accurate identification of functional positions, such as the locking position, even with variations in pin travel and play, enhancing security configurations by accurately determining the pin's state.
Implementation Method 1
the rod being configured to be moved in translation relative to the casing along the longitudinal axis, according to a translation stroke, by action of the pin on the feeler end
Implementation Method 2
sensors, contained in the housing, each sensor having a state whose value varies according to the translation of the rod
Data Source
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AI summary
A position detector (12) for a movable pin (10) of a door frame, the detector comprising a rod (22) configured to be moved in translation by the action of the pin, along a translational stroke (C22) comprising several distinct ranges (C221), including at least one critical range (C221). The detector (12) includes sensors (99) associated with the ranges (C221) and having a state whose value varies according to the translation of the rod (22), including critical sensors for each critical range. The detector (12) includes an electronic analyzer (98), which detects in which range the rod (22) is positioned, according to the sensors (99).To ensure that the detector is particularly reliable in detecting the position of the pin, especially if it is an extreme position of the pin, for each critical range (C221), the electronic analyzer (98) is configured to perform a detection of a change in the direction of translation of the rod (22) on the basis of the critical sensors (99A, 99B) associated with said critical range (C221).