Pull-Out Guide Catch Fitting With Triggered Dual-Side Unlocking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing locking mechanisms for pull-out slides, especially in wider drawers, often fail to securely unlock the switching element on both sides, leading to potential damage from uneven forces and manual unlocking complexities.
Innovation Solution
A locking fitting with a trigger mechanism that allows direct unlocking of the switching element, which can be actuated electromechanically or via sensors, ensuring simultaneous unlocking on both sides and providing overload protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a manual unlocking mechanism is used where the drawer is pressed to move the switching element out of the locking recess, then the structure remains simple, but the unlocking reliability deteriorates because the switching element may remain locked on one side while unlocked on the other, and high forces can damage components
Solution Approach 1:
The patent replaces the purely mechanical manual pressing mechanism with an electromechanical trigger system. The trigger can be actuated by a drive (electromagnetic or other) to move the switching element out of the locking recess, ensuring reliable and simultaneous unlocking on both sides without requiring manual drawer pressing.
Solution Approach 2:
The trigger acts as an intermediary component between the control system and the switching element. It directly moves the switching element out of the locking recess, providing precise control and ensuring both switching elements are unlocked simultaneously, eliminating the reliability issue of asymmetric unlocking.
2Manufacturing precision
If multiple components are used to position the switching element, then the structure becomes more complex, but the positioning precision deteriorates due to tolerance accumulation
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate components from the positioning system. The trigger directly positions and moves the switching element without requiring multiple intermediate positioning components, thereby reducing tolerance accumulation and improving manufacturing precision while simplifying the overall structure.
3Ease of operation
If the switching element is unlocked manually by pushing the drawer, then no additional actuating components are needed, but the ease of operation deteriorates especially for wider drawers where simultaneous unlocking on both sides cannot be ensured
Solution Approach 1:
The patent replaces manual drawer pushing with an automated trigger mechanism that can be actuated by a simple switch or sensor signal. This ensures simultaneous and reliable unlocking on both sides of wide drawers, greatly improving ease of operation while introducing controlled automation.
4Adaptability or versatility
If the trigger is designed to be movable to effect unlocking, then the unlocking function is achieved, but the device complexity increases
Solution Approach 1:
The patent implements a dynamically movable trigger that can be displaced or pivoted to effect unlocking, rather than a fixed trigger. This dynamic design allows the trigger to reliably move the switching element out of the locking recess while maintaining a relatively simple overall structure through careful mechanical design.
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
Ensures secure and simultaneous unlocking of the switching element on both sides of the drawer, reducing the risk of damage from uneven forces and improving the precision of the unlocking process.
Implementation Method 1
the switching element can be locked to the locking recess by the force of a spring
Implementation Method 2
The trigger can be controlled by a switch, wherein the switch can activate a drive that can actuate the trigger electromechanically, electromagnetically or in another way
Data Source
Figure 1~2
Figure 3
Figure 4A~4B
AI summary
The invention relates to a catch fitting for a pull-out guide, in particular for drawers, comprising a switching curve (20) in which a switching element (10) is displaceably mounted, wherein the switching curve (20) comprises a loop-shaped segment (23) having a catch depression (26). The switching element (10) can be engaged with the catch depression (26) by the force of a spring (63). An initiator (30) is provided, by means of which the switching element (10) can be displaced out of the catch depression (26).