Drawer Retraction Mechanism With Tilt-Lock Stable Engagement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing retraction mechanisms for drawers require larger grooves for stability, which can lead to instability and easy disengagement, and often rely on elastic members for retraction, which may not provide a secure or easy installation process.
Innovation Solution
A retraction mechanism comprising a guiding member, a holding member with tilting capabilities, and an elastic member, where the holding member engages with a locking portion on the guiding member to facilitate stable retraction and easy installation, allowing the drawer to be pulled outward freely and then retracted back into the furniture body using the elastic force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a groove is used to guide the tiltable member, then the movement can be stabilized, but the groove size must be increased which complicates the structure and reduces reliability
Solution Approach 1:
The guiding member is segmented into multiple functional walls (first wall, second wall, third wall, fourth wall) that create separate guiding channels and locking portions. This segmentation allows each wall to perform a specific function - guiding movement along channels while the locking portion provides secure engagement, thereby maintaining stability without requiring an oversized single groove structure
Solution Approach 2:
The invention transitions from a simple linear groove to a multi-dimensional structure with multiple walls forming channels and locking portions. The holding member tilts within a three-dimensional space defined by these walls, engaging with the locking portion in a different dimensional plane, which provides stable guidance without requiring excessive groove size
2Ease of manufacture
If a cured groove is used to lock the tiltable member, then engagement is achieved, but the engagement can be easily disengaged with minor movement
Solution Approach 1:
The locking mechanism is designed to be dynamic rather than static. The holding member can tilt to engage or disengage from the locking portion based on the drawer's movement state. During normal operation, the holding member remains engaged with the locking portion providing secure locking, but can easily disengage when the drawer needs to be removed by applying force in the pulling direction
3Ease of operation
If elastic members are used for retraction, then automatic retraction is achieved, but the installation process becomes more complex and secure engagement is compromised
Solution Approach 1:
The retraction mechanism is designed to be self-servicing through the interaction between the holding member and locking portion. The holding member automatically engages with the locking portion when the drawer is pushed inward, and the elastic member automatically provides the pulling force for retraction without requiring complex installation procedures or additional adjustment mechanisms
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 a simple and stable retraction process for drawers, ensuring they are securely retracted into the furniture body while allowing easy outward movement, improving installation ease and reducing the need for large grooves, thus enhancing the overall functionality and usability.
Implementation Method 1
an elastic member having a first end connected to the holding member and a second end secured to the stationary rail, the elastic member providing a pulling force to the holding member
Data Source
AI summary
A retraction mechanism for a drawer includes a guiding member, a holding member, and an elastic member. The guiding member includes a first wall, a second wall, a first channel and a second channel, a first end portion extending from first ends of the first and second walls. The first end portion includes a locking portion adjacent to the first channel. The holding member includes a pin slot, and a first supporting portion and a second supporting portion to hold against the first and second channels, respectively. The first supporting portion includes a first supporting leg corresponding to the locking portion. The drawer includes a pin for engaging with or disengaging from the pin slot when the drawer is pulled or pushed. The elastic member is adapted to act on the holding member. The drawer urged by the elastic member will be retracted into a furniture body when the drawer is moved to a predetermined position.