Door Closing Sequence Controller Locking Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional door closing sequence controllers face stress concentration and reduced functionality due to a thin structure and small contact area with the sliding rod, leading to premature failure and incorrect door closing sequences.
Innovation Solution
A door closing sequence controller with a locking mechanism that increases the contact area with the second actuator mechanism, preventing premature closure of the trailing panel and allowing smooth closure when the leading panel is closed first, using a combination of first and second actuator mechanisms, rollers, and springs to manage the locking and disengagement of the locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a thin circular clamping plate structure is used to control door closing sequence, then the device complexity is reduced and ease of manufacture is improved, but the contact area with the sliding rod is small causing stress concentration and reduced reliability
Solution Approach 1:
The clamping plate structure is transformed from a two-dimensional thin circular plate to a three-dimensional block structure with increased contact area. This dimensional change allows the clamping plate to maintain structural simplicity while providing sufficient contact area with the sliding rod, eliminating stress concentration and deformation issues.
Solution Approach 2:
The patent employs a block structure made of durable material that combines sufficient contact area with the sliding rod while maintaining overall structural simplicity. This composite approach ensures both manufacturing ease and long-term reliability by distributing stress across a larger area.
2Reliability
If the contact area between the clamping plate and sliding rod is increased to prevent stress concentration, then the reliability is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
By transitioning from a thin circular plate to a block structure, the patent achieves increased contact area without proportionally increasing overall device complexity. The block structure integrates the clamping function with sufficient contact surface in a single compact component.
Solution Approach 2:
The clamping plate block structure merges the clamping function with sufficient contact area in a single integrated component, eliminating the need for separate elements and reducing overall device complexity while improving reliability.
3Ease of manufacture
If the clamping plate structure is made thinner for simplicity, then the ease of manufacture is improved, but the suppression force applied to the second actuator mechanism is reduced
Solution Approach 1:
The block structure provides sufficient contact area to generate adequate suppression force while maintaining manufacturing simplicity. The three-dimensional form allows force distribution across multiple contact points without requiring complex assembly.
Solution Approach 2:
The block structure uses durable material composition that enables the clamping plate to exert sufficient suppression force on the second actuator mechanism while remaining manufacturable through standard processes.
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
Extends the lifetime of the door closing sequence controller by increasing the suppression force and ensuring correct door closing sequences, preventing premature wear and maintaining functionality over time.
Implementation Method 1
The locking mechanism 15 clamps a second actuator mechanism 12 thereby preventing the second actuator mechanism from moving
Implementation Method 2
the locking mechanism can be pushed by the first actuator mechanism to enable the second actuator mechanism to disengage with the locking mechanism
Implementation Method 3
the second actuator mechanism can be restored into a movable state
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A door closing sequence controller (10) utilized to control closing sequence between a leading panel (F) having a first door closer (C1) and a trailing panel (M) having a second door closer (C2), comprises a first actuator mechanism (11), a second actuator mechanism (12), a fixing base (13) disposed between the first actuator mechanism (11) and the second actuator mechanism (12), a movable base (14) disposed at the fixing base (13), a locking mechanism (15) disposed in the movable base (14), and a blocking pin (16), the movable base (14) comprises an accommodating space (145), the blocking pin (16) is disposed in the accommodating space (145), the locking mechanism (15) remains clamping the second actuator mechanism (12) till the first actuator mechanism (11) interacts with the locking mechanism (15), such that the locking mechanism (15) can release the second actuator mechanism (12) from clamping.