Reverse Input Lock Clutch With Continuous Phase Angle Adjustment
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Solution Overview
Problem
Conventional reverse input lock clutches face challenges in phase angle adjustment due to manufacturing inaccuracies, requiring discrete lock groove selection and complex component alignment, which complicates handling and assembly.
Innovation Solution
A reverse input lock clutch design featuring a first elastic member with adjustable locking portions and a stopper that can be positioned arbitrarily, allowing continuous rotation and accurate phase angle adjustment, eliminating the need for discrete lock grooves and precise component alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If discrete lock grooves are used for phase angle adjustment, then the spring end portion can be locked at specific positions, but the adjustment is limited to discrete positions and optimal phase angle adjustment is difficult
Solution Approach 1:
The invention extracts the phase angle adjustment function from the discrete lock groove system and implements it through a continuous adjustment mechanism. The stopper member with locking portion can be positioned at arbitrary angular positions around the circumference, allowing continuous phase angle adjustment rather than being limited to discrete positions defined by lock grooves.
Solution Approach 2:
The invention introduces a dynamic adjustment mechanism where the stopper member can be freely rotated and positioned at any angular position. The locking portion of the stopper can engage with the elastic member at any phase angle, providing dynamic and continuous adjustment capability rather than static discrete positions.
2Manufacturing precision
If multiple lock grooves are formed in the spring receiver for phase angle adjustment, then discrete position locking is achieved, but component sorting and readjustment are required
Solution Approach 1:
The invention removes the lock groove structure from the spring receiver and replaces it with a stopper member that has arbitrary positioning capability. This eliminates the need for multiple discrete lock grooves and the associated component sorting and matching processes.
Solution Approach 2:
The invention separates the phase angle adjustment function into a dedicated stopper member that can be independently adjusted. The locking portion of the stopper can be positioned at any angular position, allowing independent adjustment without requiring coordination between multiple components with predetermined groove positions.
3Reliability
If notch portions on the input shaft and spring receiver are aligned at predetermined intervals, then proper spring compression is achieved, but complex component arrangement is required
Solution Approach 1:
The invention extracts the alignment function from the predetermined notch portion arrangement and implements it through the adjustable stopper member. The stopper can be positioned to ensure proper spring compression without requiring predetermined alignment features on multiple components.
Solution Approach 2:
The invention introduces dynamic adjustability to the component arrangement system. The stopper member can be freely rotated and positioned to achieve the correct phase angle and spring compression, eliminating the need for static predetermined alignment between multiple components.
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
Improves handleability and simplifies assembly by enabling continuous phase angle adjustment and accurate positioning, reducing the need for component sorting and readjustment, while maintaining stable rotational force transmission.
Implementation Method 1
a first elastic member which is provided across the fixed member and the output member, enables rotation of the output member by being loosened, and locks the rotation of the output member by being tightened
Data Source
AI summary
A reverse input lock clutch has a fitting portion of a spring stopper rotatably fitted in a cylindrical dent formed by being surrounded by an inner diameter portion on an end surface of an output member on a side opposite to a fixed member. A locking portion rotates with the fitting portion while having one end of a first elastic member locked by a holder groove. Adjustment of the rotation position of the lock portion with respect to the output member is made by rotating the fitting portion within a range of a groove length of an adjustment groove with respect to the output member and anchoring an adjustment pin at a desired rotation position to the adjustment pin fixing portion so as to fix the fitting portion on the output member.