Glove Box Knob-Rotator Linkage for Low-Loss Opening Force
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Solution Overview
Problem
Conventional glove box opening and closing apparatuses suffer from inefficiencies in force transmission and increased component count, leading to higher costs and potential damage due to excessive friction.
Innovation Solution
A rotatable knob system with a pressing protrusion and interlocking surface mechanism that converts rotational force into linear motion, minimizing force loss and reducing component count through a torsional force transmission system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a conventional linear force transmission method is used with multiple rods and gears, then the structure can achieve opening and closing function, but the force transmission efficiency decreases and the number of components increases
Solution Approach 1:
The patent combines multiple rods and gears into a single integrated rotator component. The rotator includes a rotating unit body with multiple links that directly connect to the rods, eliminating the need for separate gear mechanisms. This merging reduces the number of components while maintaining the force transmission function, thereby improving force transmission efficiency and reducing component complexity simultaneously.
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate components from the conventional linear transmission system. By removing redundant gears and transmission elements, the design achieves direct force transmission from the knob through the rotator to the rods, reducing both the number of components and energy loss in the transmission path.
2Ease of manufacture
If multiple rods and gears are used in the opening and closing apparatus, then the opening and closing function can be achieved, but the cost increases due to more components
Solution Approach 1:
The patent merges multiple discrete components (rods, gears, linkages) into an integrated rotator assembly. This consolidation reduces the total number of parts that need to be manufactured, assembled, and inventoried, thereby lowering manufacturing costs while maintaining the required opening and closing functionality.
3Reliability
If conventional linear transmission with multiple components is used, then the opening and closing mechanism can function, but the friction increases leading to potential damage
Solution Approach 1:
The patent removes unnecessary intermediate transmission components that generate friction. By implementing a direct rotational-to-linear motion conversion through the rotator mechanism, the design eliminates multiple contact points and friction interfaces, thereby reducing wear and extending component lifespan.
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
Enhances force transmission efficiency, reduces component complexity, and improves user convenience by allowing the glove box to be opened or closed with minimal effort, while extending the lifespan of components.
Implementation Method 1
A rotatable knob system with a pressing protrusion and interlocking surface mechanism that converts rotational force into linear motion, minimizing force loss and reducing component count through a torsional force transmission system.
Data Source
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AI summary
Disclosed is a glove box opening and closing apparatus. The apparatus includes a knob rotatably coupled to a glove box and configured to be disposed at one of a first position and a second position, a rotator that rotates in conjunction with rotation of the knob, and rods that move in conjunction with the rotation of the rotator. The rotator includes a link in contact with the knob, an interlocking surface is formed on the link, and the knob is configured to come into contact with a different area of the interlocking surface when the knob moves from the first position to the second position.