Lift Sliding Window Damper Assembly Dynamics
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Solution Overview
Problem
Existing damper assemblies for lift sliding windows/doors fail to maintain stable damping operations when the interval between the frames and the window/door varies, leading to potential injuries and impact noise due to excessive acceleration during opening and closing.
Innovation Solution
A damper assembly with a movable body and adjustable fixing protrusion, coupled with a damping part, that allows for vertical adjustment and stable engagement even with distorted frame intervals, using a simple structure for easy installation and maintenance in narrow spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed hook and catch structure is used in the damper assembly, then the structure is simple and manufacturing cost is reduced, but the damping operation becomes unstable when the interval between the upper frame and upper door frame varies due to deviation or foreign materials
Solution Approach 1:
The patent applies the dynamics principle by making the hook vertically movable along the rod instead of being fixed. The hook can move up and down within a certain range to adapt to variations in the interval between the upper frame and upper door frame, ensuring stable engagement with the catch regardless of positional deviations or foreign materials. This dynamic adjustment capability resolves the contradiction between structural simplicity and operational reliability.
2Ease of manufacture
If the hook and catch are fixed at predetermined positions, then the manufacturing and installation are easy, but the catch may pass without engaging or collide with the case when the relative height changes
Solution Approach 1:
The hook is designed to move vertically along the rod, allowing it to dynamically adjust its position to maintain proper engagement with the catch even when the interval between frames varies. This dynamic mechanism ensures reliable operation without requiring complex adjustment procedures, balancing ease of manufacture with adaptability.
Solution Approach 2:
The system allows for vertical position adjustment of the hook along the rod, changing the positional parameter to adapt to variations in frame intervals. This parameter change capability enables the damper assembly to accommodate different installation conditions and maintain stable damping operations.
3Force
If a pneumatic or hydraulic damper is used with expanded container, then the damping force is sufficient, but the risk of oil leakage and malfunction increases
Solution Approach 1:
The patent employs a mechanical spring-based damper instead of complex pneumatic or hydraulic systems. The spring damper provides sufficient damping force through elastic deformation without the risks of oil leakage or mechanical failure associated with sealed fluid systems. This simpler mechanical approach reduces maintenance requirements and improves reliability.
Solution Approach 2:
The invention extracts the essential damping function from complex pneumatic/hydraulic systems and implements it through a simpler mechanical spring mechanism. By taking out only the necessary damping capability without the associated complexity of fluid systems, the design achieves sufficient damping force while eliminating leakage and malfunction risks.
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
Prevents door-related injuries and impact noise by maintaining stable damping operations and easy installation in confined spaces, ensuring smooth window/door operation despite variations in frame intervals.
Implementation Method 1
a spring element (140) to buffer the window/door
Implementation Method 2
damper assembly for a lift sliding window/door... preventing door-related injuries or reducing impact noise
Data Source
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AI summary
A damper assembly for a lift sliding window/door is disclosed. The damper assembly for a lift sliding window/door according to the present disclosure, configured to, when a handle is unlocked, ascend from a lower frame to be slidable for opening and closing, and when the handle is locked, descend to be refrained from sliding, including: a fixing protrusion installed to an upper frame; a first bracket installed on the upper surface of the window/door; a movable body having one end axially-coupled to the first bracket such that the other end thereof rotates in the elevating direction of the window/door with reference to the first bracket; a damping part provided on the movable body to engage with the fixing protrusion during the sliding operation of closing the window/door, so as to reduce the sliding speed; and a second bracket installed on the upper surface of the window/door such that an engagement between the damping part and the fixing protrusion is maintained in response to the elevation of the window/door, the second bracket performing regulation such that the other end of the movable body rotates in a predetermined range. According to the present disclosure, the impact noise and physical injury caused by acceleration when the window/door is closed can be prevented by the damping part, and the engagement between the fixing protrusion and the damping part can be stably maintained by the rotation of the movable body, thereby enabling smooth opening operation of the window/door with light force. Further, the damper assembly not only allows easy and simple installation even in a small space but also allows easy maintenance due to the simple structure thereof, in spite of the damping part being provided thereon.