Drawer Ejection Mechanism With Bidirectional Cam Unlocking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drawer opening and closing mechanisms are unstable, require multiple delicate components, and can only be unlocked by pressing the drawer, limiting mechanical load absorption and durability.
Innovation Solution
An ejection mechanism with a curved guide and an activator that allows unlocking by relative movement in either direction, reducing component count and enhancing stability, enabling easy handling and synchronization between connected ejection systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large number of delicate components are used for latching, then the locking mechanism can be achieved, but the mechanical load absorption is limited and damage is expected
Solution Approach 1:
The patent combines the latching function and the locking function into a single integrated mechanism. The driver serves both as the latching element and the locking element, eliminating the need for separate delicate components. This merging allows the mechanism to handle higher mechanical loads while maintaining reliable locking and latching functionality.
Solution Approach 2:
The patent extracts and eliminates unnecessary intermediate components from the latching mechanism. By using a direct driver-cam guide interaction without multiple intermediate elements, the design reduces component count while improving mechanical strength and load absorption capability.
2Reliability
If the latching mechanism is unlocked only by pressing the drawer, then the unlocking function is achieved, but the ease of operation is limited
Solution Approach 1:
The patent makes the unlocking mechanism dynamic by allowing the driver to respond to forces in both directions. The driver can be unlocked by pressing the drawer (compressive force) or by pulling the drawer (tensile force), providing operational flexibility and ease of use while maintaining reliable unlocking functionality.
3Reliability
If multiple delicate components are used, then the latching mechanism can be implemented, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into the driver component, which simultaneously performs latching, locking, and unlocking operations. This consolidation reduces the total number of components while maintaining all necessary latching and locking functions.
Solution Approach 2:
The driver is designed as a multi-functional element that can latch, lock, and unlock the mechanism. This universal component approach eliminates the need for separate dedicated components for each function, thereby reducing device complexity while maintaining reliable operation.
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
The mechanism provides reliable unlocking through reduced component complexity, increased stability, and synchronization of ejection systems, preventing incorrect operations and ensuring secure locking and unlocking functionality.
Implementation Method 1
a driver (111) that can be locked in a closed position on the curved guide (108) with the tensioned energy store (112), and a bar-shaped activator (116)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The mechanism has an activator (5) coupled to a driver in a locked position and moved relative to a curve guide (7). The driver is prestressed in direction by a force accumulator (8). The driver is released by movement of the activator relative to the curve guide or by movement of another curve guide relative to another activator in the locked position. The former activator and/or the curve guide are moved in the direction and an opposite direction to release the driver. The mechanism is installed at a pull-out guide (1). Independent claims are also included for the following: (1) a pull-out guide for a drawer, comprising an ejection mechanism (2) an ejection system comprising ejection mechanisms.