Vehicle Seat Rotary Member Pin Integration
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Solution Overview
Problem
In vehicle seats, the friction resistance between the spiral spring and the pin hinders the rotational movement due to sliding friction, making it difficult to rotate the rotary member effectively.
Innovation Solution
The pin is integrally coupled to the rotary member, allowing it to rotate with the rotary member and reducing sliding friction resistance by having the spring abut the outer circumference of the pin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the pin is fixed to the base member which does not rotate, then the spiral spring can be held by the pin to reduce eccentric offset, but sliding friction resistance is generated between the spring and pin when the rotary member rotates
Solution Approach 1:
The pin is changed from a fixed configuration to a rotatable configuration. By making the pin rotatable along with the rotary member, the system adapts dynamically during rotation, allowing the spring to rotate with the pin rather than sliding against a stationary pin, thereby reducing sliding friction resistance while maintaining structural stability
2Stability of the object's composition
If the spring is pressed against the pin to reduce eccentric offset, then the spiral spring configuration is stabilized, but sliding friction makes the movement difficult
Solution Approach 1:
The system transitions from a static pin configuration to a dynamic one where the pin rotates with the rotary member. This allows the spring to maintain its pressed configuration against the pin while both rotate together, eliminating sliding friction and enabling smooth rotational movement while preserving configuration stability
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 configuration enables smoother rotation of the rotary member by minimizing sliding friction resistance, enhancing the ease of movement and adjustment of the vehicle seat mechanisms.
Implementation Method 1
friction resistance due to sliding is generated between one end of the spiral spring, which moves along with the rotary member and has a great rotational momentum, and the pin
Data Source
AI summary
A vehicle seat including: a base member; a rotary member which is connected to the base member by a pin and is configured to be rotatable with respect to the base member; and a spring attached between the base member and the rotary member and urging the rotary member with respect to the base member in a rotating direction, wherein the spring abuts an outer circumference of the pin, and wherein the pin is integrally coupled to the rotary member.