Slide Assembly Opening Mechanism for Wear-Resistant Forced Release
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Solution Overview
Problem
Conventional slide assembly opening mechanisms are prone to damage and have a shortened lifespan due to wear and weak response forces when forcibly opened, and are not suitable for large or heavy-duty applications as they can lead to unexpected opening.
Innovation Solution
An opening mechanism comprising a first rail, a second rail, and a third rail with a fixing member, a movable member, and resilient members that engage and disengage to prevent sudden opening forces, ensuring the slide assembly remains closed under external impacts and maintaining stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holding member is designed to deform upward to disengage the hook from the latch member, then the drawer can be protected from damage when forcibly pulled out, but the contact portions wear out after several times of operation and the response force becomes weak
Solution Approach 1:
The movable member is divided into two legs: a first leg that contacts the guide portion and a second leg that contacts the resilient member. This segmentation allows the first leg to handle guidance while the second leg handles the resilient interaction, distributing wear and improving durability.
Solution Approach 2:
A resilient member is introduced as an intermediary between the movable member and the fixing member. The resilient member absorbs wear and provides a buffer, allowing the movable member to engage and disengage without direct metal-to-metal contact that causes wear.
2Stability of the object's composition
If the deformed part is made less stiff to allow bouncing back, then the part can return to its original position, but the response force to bear the pulling force becomes weak
Solution Approach 1:
The resilient member is designed to be elastically deformable, allowing it to dynamically adjust its stiffness based on the applied force. When a small force is applied, it deforms easily to allow returnability; when a large force is applied, it maintains sufficient stiffness to provide strong response force.
Solution Approach 2:
The resilient member's physical parameters (such as material properties, cross-sectional area, or length) can be adjusted to optimize both returnability and response force. By changing these parameters, the system achieves both softness for returnability and sufficient stiffness for bearing heavy loads.
3Device complexity
If the conventional opening mechanism is used, then the structure is simple, but the slide assembly can open unexpectedly under heavy loads or external impacts
Solution Approach 1:
The resilient member is pre-loaded to provide a preliminary force that keeps the locking member engaged with the movable member. This preliminary action ensures that the slide assembly remains securely closed before any external force is applied, preventing unexpected opening under heavy loads or impacts.
Solution Approach 2:
The resilient member provides a preliminary anti-action force that counteracts external forces attempting to open the slide assembly. This counter-force is always present and automatically increases when external forces are applied, maintaining reliability under various loading conditions.
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 effectively protects the slide assembly from damage by maintaining a stable closed status under forceful opening attempts, prolonging its lifespan and enabling use with heavy loads.
Implementation Method 1
a first resilient member providing a force in a first direction; a second resilient member providing a force in a second direction
Data Source
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AI summary
The opening mechanism (16) includes a fixing member (18), a movable member (20), a locking member (22), a first resilient member (24) and a second resilient member (26). The fixing member (18) is fixed to a first rail (10) and has a guide portion (28), a stop (30) and a room (32). The movable member (20) is movably connected to the fixing member (18) and has a first leg (3 8), a second leg (40) and an engaging portion (44). The first leg (38) slidably contacts the guide portion (28) and the second leg (40) extends into the room (32). The locking member (22) is pivotably connected to a second rail (12) and includes a locking portion (54). The first and second resilient members (24, 26) respectively provide a force to a third rail (14) and the movable member (20). When the second rail (12) is forcibly pulled out relative to the first rail (10), the movable member (20) is moved and pivots an angle so that the locking portion (22) is disengaged from the engaging portion (44).