Supporting Leg Indicator Mechanism for Ground Contact Feedback
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Solution Overview
Problem
Existing retractable supporting legs in child safety seats lack a mechanism to indicate whether they are properly extended and grounded, posing a safety hazard due to potential misuse.
Innovation Solution
An indicating mechanism is integrated into the supporting leg, featuring an indicator that moves between positions to visually signal contact with the ground, using a cable and driver system to ensure the leg is fully extended and stable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a retractable supporting leg mechanism is used, then the supporting leg can be folded and retracted, but it cannot indicate whether the supporting leg is placed securely
Solution Approach 1:
The patent implements a feedback mechanism through the indicator-cable-driver system that provides real-time visual information about the supporting leg's grounding status. The indicator moves between first and second positions based on the driver's movement, which is triggered by the supporting leg's extension state, thereby feedback the grounding status to the user.
Solution Approach 2:
The patent introduces an intermediary indicator mechanism that mediates between the supporting leg's physical state and the user's perception. The indicator, connected via cable to the driver, serves as an intermediary that translates the supporting leg's extension status into visible positional changes, allowing users to understand the grounding state without directly observing the supporting leg.
2Ease of operation
If the supporting leg is made retractable, then it can be folded with respect to the base, but the mechanism cannot indicate whether the supporting leg completely extends out of the base
Solution Approach 1:
The indicator mechanism provides feedback on the extension status by changing its position in response to the supporting leg's movement. When the supporting leg completely extends, the driver moves, causing the indicator to transition between positions, thereby precisely indicating the extension status to the user.
Solution Approach 2:
The patent replaces direct mechanical observation of the supporting leg's extension with an indicator system that uses cable-driven mechanical movement to represent the extension status. This substitution allows for precise indication without requiring the user to visually measure the supporting leg's position.
3Device complexity
If no indication mechanism is provided, then the overall mechanism remains simple, but users may operate the supporting leg improperly causing safety hazards
Solution Approach 1:
The indicator mechanism provides essential feedback to ensure safe operation by clearly showing whether the supporting leg is properly extended and grounded. This feedback prevents improper operation without significantly complicating the overall device structure.
Solution Approach 2:
The indicator serves as an intermediary that communicates the supporting leg's status to the user in a simple, visual manner. This intermediary mechanism enhances reliability by preventing misuse while adding minimal structural complexity to the device.
Data Source
AI summary
An indicating mechanism is configured to indicate whether a component contacts with a surface, and the component has an indicating end and a contacting end that are opposite to each other. The indicating mechanism is installed on the component and includes: an indicator disposed at the indicating end and movable between a first position and a second position to indicate whether the component contacts with the surface; a driver movably disposed in the contacting end; a cable sleeve including a first end fixed to the indicating end and a second end fixed to the driver; a cable movably arranged in the cable sleeve, and including a first end and a second end extending out of both ends of the cable sleeve, wherein the first end is fixed to the indicator and drives the indicator to move, and the second end is fixed to the contacting end.