Bidirectional Lid Device Linkage Mechanism
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Solution Overview
Problem
Conventional opening and closing devices require frequent engagement and disengagement of shafts or shaft portions, leading to wear and instability over time, making it difficult to maintain wobble-free and stable operation.
Innovation Solution
A lid device with a linkage member and switching member that allows the lid to be opened from either side by adjusting the engagement of the latch with a latch receiver, using a biasing member to maintain engagement and a torsion coil spring for stable operation, and a damper for controlled opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional opening and closing devices use shafts or shaft portions that are frequently engaged and disengaged to enable bidirectional opening, then the lid can be opened from either side, but the frequent engagement and disengagement causes wear and instability over time
Solution Approach 1:
The patent extracts the latch mechanism from the traditional shaft engagement system. Instead of relying on frequent engagement and disengagement of shafts or shaft portions, the invention uses a latch that can be selectively engaged or disengaged from a latch receiver. This separation allows the lid to be opened from either side without subjecting the pivotal shafts to repeated engagement and disengagement cycles, thereby reducing wear and maintaining operational stability over time.
2Adaptability or versatility
If conventional devices use detachable engagement systems for bidirectional opening, then the lid can pivot about either shaft, but the arrangement becomes complex and difficult to simplify
Solution Approach 1:
The patent combines the bidirectional opening capability with a single, unified latch mechanism rather than requiring separate engagement systems for each shaft. The latch can be selectively engaged with the latch receiver to enable opening from either side, eliminating the need for complex detachable engagement systems. This merging of functions into a single mechanism simplifies the overall arrangement while maintaining versatility.
3Adaptability or versatility
If shafts are frequently engaged and disengaged in conventional devices, then bidirectional opening is achieved, but wear at engagement portions increases over time
Solution Approach 1:
The patent extracts the wear-prone engagement function from the pivotal shafts and relocates it to a dedicated latch mechanism. The shafts remain continuously engaged with their supporting structures, eliminating repeated engagement and disengagement cycles. The latch mechanism handles the selective engagement required for bidirectional opening, protecting the shafts from wear and extending the overall service life of the device.
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 device provides a simple and stable long-term operation by reducing the frequency of engagement and disengagement at pivot points, ensuring smooth and durable opening and closing functionality.
Implementation Method 1
a biasing member for biasing the latch so as to constantly set a latch end in a position to be brought into engagement with the latch receiver
Implementation Method 2
using a biasing member to maintain engagement and a torsion coil spring for stable operation
Implementation Method 3
a damper for controlled opening
Data Source
Figure 1
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AI summary
A linkage member 3 is pivotally supported, through a first shaft 30, by an article 1 having an opening, is supported, through a second shaft 31, by a lid member 2, and includes a latch 32 engageable with a latch receiver 12 disposed in the article 1. The lid member 2 has an engageable end 201 disposed therein so as to be receivable into an engagement hole 34 formed in the linkage member 3 and further has a switching member 20 disposed therein so as to be movable to selectively set the engageable end 201 in an advanced position to place the engageable end in a most deepest position in the linkage member 3 through the engagement hole 34, in a retracted position to take the engageable end out of the engagement hole 34, and in an intermediate position between both of the advanced position and the retract position. When the engageable end 201 of the switching member 20 is set in the advanced position, the engageable end brings the latch 32 out of engagement with the latch receiver 12.