Press-Control Sliding Rail Limiter for Easy Drawer Detachment
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Solution Overview
Problem
Existing sliding rail assemblies for drawers are inconvenient to detach due to the need for simultaneous manual biasing of stop members, leading to difficulties in removing the drawer from the cabinet without accurately unlocking the components.
Innovation Solution
A press-control type sliding rail assembly featuring a limiter member with pivotally mounted stop flanges that can be biased in reverse directions, allowing for easy detachment by pressing a stop flange to prevent the inner rail from falling out of the intermediate rail, facilitating mounting and dismounting with a simple structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stop members are provided between inner rail and outer rail to prevent falling, then reliability is improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines multiple stop members (first stop flange and second stop flange) into a single integrated limiter member that performs both stopping functions simultaneously. This merging reduces the number of separate components while maintaining the reliability of preventing rail displacement, and simplifies operation to requiring only a single pressing action on the second stop flange for detachment.
Solution Approach 2:
The limiter member is designed to be movable rather than fixed, allowing it to transition between locked and unlocked states. The first stop flange and second stop flange can move relative to each other, enabling the structure to dynamically adapt between providing secure retention during normal use and allowing easy detachment when needed.
2Reliability
If manual biasing of stop members is required for detachment, then reliability is improved, but ease of operation worsens
Solution Approach 1:
The limiter member is designed so that pressing the second stop flange automatically triggers the unlocking mechanism through its own structural design. The movable connection between the first and second stop flanges creates a self-service system where the user's single action on the second flange automatically causes the first flange to release from the stop block, eliminating the need for coordinated manual manipulation of multiple components.
3Ease of manufacture
If detachable multi-rail structure is used, then ease of manufacture is improved, but device complexity increases
Solution Approach 1:
The patent merges the functions of multiple stop members into a single limiter member component. This consolidation reduces the total number of parts that need to be manufactured and assembled, while still providing the necessary detachment capability and security functions, thereby reducing device complexity while maintaining ease of manufacture.
Data Source
AI summary
A press-control type sliding rail assembly includes an intermediate rail, an inner rail slidably coupled to the intermediate rail, a limiter member pivotally mounted at the intermediate rail and defining opposing first stop flange and second stop flange, and a stop block located at the inner rail for stopping against the first stop flange to prevent falling of the inner rail out of the intermediate rail when the second stop flange is pressed by an external force to bias the limiter member in moving the first stop flange toward the inner rail.