Synchronized Roller Damper for Cupboard Door Stability
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Solution Overview
Problem
Current roller assemblies with dampers for cupboard doors suffer from asynchronous movement of upper and lower ends, inconvenient installation, high production costs, ineffective damping, and poor smoothness and damping effects, leading to swaying and jumping issues.
Innovation Solution
A roller assembly with a damper featuring a damper assembling clip, movable clip sleeve, and outer support clip, incorporating a damper assembly with a fixing base, extension spring, and a damper pulling sheet with automatic reset functionality, along with adjustable components for precise installation and synchronization of movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dampers are installed on both upper and lower ends of the door leaf, then damping effect is improved, but the door leaf jumps when dampers do not move asynchronously
Solution Approach 1:
The patent combines the upper and lower dampers into a single integrated assembly where the pull rod connects both dampers through a movable clip mechanism. This ensures that both dampers move synchronously as one unit, eliminating the jumping problem caused by asynchronous movement while maintaining the damping benefits of having dampers at both ends.
Solution Approach 2:
The movable clip acts as an intermediary mechanism that couples the upper and lower dampers. It allows the pull rod to transmit force simultaneously to both dampers, ensuring synchronized movement. The kidney-shaped hole in the outer support clip provides controlled movement range for this intermediary mechanism.
2Reliability
If the cupboard is tall requiring installation at upper and lower ends, then damping coverage is improved, but installation convenience deteriorates
Solution Approach 1:
The damper assembly is segmented into modular components including the outer support clip, movable clip, pull rod, and damper units that can be assembled separately and then installed as a complete unit. The adjusting bolt with thread structure allows for easy height adjustment during installation without requiring complex alignment procedures.
Solution Approach 2:
The assembly incorporates adjustable elements such as the adjusting bolt that can be rotated to change the position of the outer support clip relative to the door leaf. This dynamic adjustment capability simplifies installation by allowing workers to adapt the assembly to different door heights and positions without requiring precise pre-positioning.
3Reliability
If complex damping mechanisms are used to improve damping performance, then damping effect is improved, but production cost increases
Solution Approach 1:
The damper assembly utilizes the door leaf's own weight and the elastic deformation of the pull rod to provide damping functionality. The pull rod bends and rebounds to create damping force without requiring external power sources or complex mechanical mechanisms. This self-service approach reduces production costs while maintaining effective damping performance.
Solution Approach 2:
The patent employs simple, inexpensive components such as the pull rod made from ordinary metal material, basic clips, and standard fasteners. These components are designed to be simple in structure and easy to manufacture, avoiding the use of expensive specialized parts while still achieving the required damping function.
4Adaptability or versatility
If dampers are made to work asynchronously to allow independent movement, then damping flexibility is improved, but door stability deteriorates causing jumping
Solution Approach 1:
The patent merges the control of upper and lower dampers into a single synchronized system through the pull rod and movable clip mechanism. Both dampers respond together to door movement, providing stable damping control without the jumping caused by asynchronous operation, while still adapting to different door positions and weights.
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 solution provides a compact, easy-to-install roller assembly with synchronized and effective damping, ensuring smooth movement and preventing swaying and jumping of cupboard doors, while allowing for flexible installation modes and enhanced damping performance.
Implementation Method 1
a damper assembly including a fixing base, a damper and an extension spring
Implementation Method 2
roller assembly with damper... can achieve synchronous and excellent damping effect
Implementation Method 3
dragging effect and damping effect of the existing roller assembly are bad as to the heavy door leaf
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
A pulley assembly with damper including a damper assembling clip (10), a movable clip sleeve (11) and an outer support clip (15) arranged in sequence from inner to exterior. A damper assembly including a fixing base (1), a damper (2) and an extension spring (3) is mounted in the damper assembling clip (10), a damper pulling sheet (12) is mounted in a radial through groove (10-4) of the fixing base (1), and the damper pulling sheet (12) extends out of lower end of the damper assembling clip (10) and is provided with a 7-shaped fixing hook (12-2). The pulley assembly can achieve synchronous damping, ensure smooth move of the door leaf, and avoid swaying and jumping.