Hinge Assembly Damping Device Secure Mounting
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Solution Overview
Problem
Conventional hinge assemblies with damping devices suffer from insecure mounting and easy loosening when subjected to impact, leading to ineffective damping performance.
Innovation Solution
A hinge assembly design featuring a damping device with a piston rod, slide, and housing, where the damping member is securely engaged with the hinge cup using resilient members and pins, providing adjustable damping force and travel, ensuring stable and secure installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the damping device is installed using a resilient arresting element and an opening, then the installation is simple, but the connection is not secure enough and the damping device is easily loosened under impact
Solution Approach 1:
The connection system is divided into multiple independent engagement elements: resilient arresting elements for initial positioning, positioning members for alignment, and engaging parts for secure locking. This segmentation allows each element to perform its specific function while collectively providing both simple installation and secure connection.
Solution Approach 2:
The resilient arresting elements and positioning members are pre-configured in the hinge cup before the damping device is installed. This preliminary action ensures that when the damping device is inserted, the connection is immediately secured without requiring additional fastening steps, thus maintaining installation simplicity while improving connection security.
2Ease of operation
If the damping device is installed using a clip-like member engaged with an elongate recess, then the installation is straightforward, but the impact is directly transferred to the positioning position causing the damping device to loosen easily
Solution Approach 1:
The resilient arresting elements act as intermediaries between the impact force and the positioning position. When impact occurs, these elements absorb and distribute the force, preventing direct transmission to the positioning position. This mediator approach maintains installation ease while significantly improving impact resistance.
Solution Approach 2:
The resilient arresting elements are pre-installed to provide cushioning protection before impact occurs. This beforehand cushioning absorbs shock loads and prevents the damping device from loosening under impact, while not interfering with the straightforward installation process.
3Reliability
If multiple engaging parts and resilient members are added to secure the damping device, then the connection security is improved, but the device complexity increases
Solution Approach 1:
Multiple functions are merged into single components: the resilient arresting elements simultaneously provide positioning, securing, and impact absorption; the positioning members combine alignment and engagement functions. This merging reduces the number of separate parts needed, improving mounting security while controlling structure complexity.
Solution Approach 2:
The engaging parts are designed with multi-functionality to serve multiple purposes: securing the damping device, providing impact resistance, and ensuring proper positioning. This universal design approach achieves high mounting security without proportionally increasing device complexity, as each component performs multiple critical functions.
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 design provides a securely mounted damping device that offers adjustable damping force and travel, ensuring smooth and quiet operation by preventing the damping device from loosening under impact, enhancing the overall performance of the hinge assembly.
Implementation Method 1
a first resilient member connected between the first lug and the first side wall so as to provide a force to the arm; a second resilient member connected between the second lug and the second side wall so as to provide a force to the arm
Implementation Method 2
a damping device located in the receiving space of the hinge cup and having a damping member, a slide and a housing. The damping member has a piston rod which is connected to the slide
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A hinge assembly includes a hinge cup (10), an arm (14), an installation member (12), a damping device (16), a first resilient member (18), a second resilient member (20), a first pin (22) and a second pin (24). The hinge cup (10) has a receiving space (34) and a positioning hole (40) communicating with the receiving space (34). The bottom wall (28) of the receiving space (34) has two lugs (42a, 42b) and at least one first engaging part (44). The arm (14) is pivotably connected to the hinge cup (10). The damping device (16) is located in the receiving space (34) of the hinge cup (10) and includes a damping member (48), a slide (50) and a housing (52). One end of the damping member (48) is mounted in the positioning hole (40). The damping member (48) has a piston rod (56) which is connected to the slide (50). The housing (52) has at least one second engaging part (68) which is engaged with the first engaging part (44) on the bottom wall (28) of the hinge cup (10). The first resilient pin (22) connects the arm (14) and the first resilient member (18) to the hinge cup (10). The second pin (24) connects the second resilient member (20) to the hinge cup (10). When the arm (14) is moved toward a closed position relative to the hinge cup (10), the arm (14) pushes the slide (50) to provide the damping force.