Hinge Hold-Down Support Structure with Resilient Sleeve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hinges require a large support face for torque-bearing, occupy significant space, and have a complex, time-consuming assembly process with a high risk of damage during alignment, leading to manufacturing inefficiencies and product waste.
Innovation Solution
A hinge design featuring a sleeve structure formed by opposite brackets that mount to a support board, providing a stem receiving space with resilient retention forces, eliminating the need for stamping and jig-assisted assembly, and allowing for direct mounting to device enclosures or fixture boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a large support face is used to bear torque, then the torque-bearing capability is improved, but the space occupied by the hinge increases and the visual appearance deteriorates
Solution Approach 1:
The support structure is divided into separate components: a support board with slots and a sleeve with mounting legs. This segmentation allows the torque-bearing function to be distributed across multiple elements (slots and mounting legs) rather than requiring a single large support face, thereby reducing the overall area while maintaining strength.
Solution Approach 2:
The mounting legs extend in a direction perpendicular to the support board plane, utilizing the vertical dimension to provide torque-bearing capability. This dimensional transition allows the support structure to achieve necessary strength without increasing the horizontal footprint area.
2Manufacturing precision
If the pintle is forcibly fitted into the sleeve with jig assistance, then the assembly precision is improved, but the assembly time increases and the risk of damage increases
Solution Approach 1:
The support board and sleeve are pre-formed with integrated slots and mounting legs that guide the pintle into correct alignment during assembly. This preliminary structuring of the support elements eliminates the need for external jigs and reduces alignment complexity, allowing for faster, less damaging assembly while maintaining precision.
3Device complexity
If the support structure is formed by stamping as an integral part, then the manufacturing complexity is reduced, but the adaptability for different applications is limited and repairability deteriorates
Solution Approach 1:
The support structure is segmented into separate stampable components (support board and sleeve) that can be manufactured independently and then assembled. This segmentation provides manufacturing simplicity through standard stamping processes while enabling adaptability, as the separate components can be configured for different applications and easily replaced if damaged.
4Reliability
If a dual-surrounding sleeve configuration is used to provide torque in both opening and closing, then the functional requirement is improved, but the device complexity increases
Solution Approach 1:
The dual-surrounding sleeve function is achieved by segmenting the sleeve into two separate mounting legs positioned on opposite sides of the support board. Each mounting leg provides torque in its respective direction, collectively achieving bidirectional torque provision without requiring a complex dual-surrounding configuration.
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
Simplifies the assembly process, reduces the risk of damage, enhances manufacturing efficiency, and provides adaptive wear compensation, enabling the hinge to be easily modified or repaired by replacing individual parts rather than the entire unit.
Implementation Method 1
a resilient sleeve that comprises two opposite brackets for applying adaptive resilient forces to self-compensate wear of the hinge
Implementation Method 2
a rotational friction induced between an inside surface of the sleeve and an outside circumference of the shaft provides an operation torque for a subject device
Data Source
AI summary
A hold-down support structure is coupled to a stem of a pintle to form a hinge, and includes a support board and a sleeve. The support board has a support section forming a support face. The sleeve includes first and second brackets. When the sleeve is mounted to the support board, a stem receiving space is defined by by the support board and the first and second brackets. The stem is inserted into the stem receiving space and an outer circumferential surface of the stem is subject to constraint by the support face of the support board and the resilient retention forces respectively applied by the first and second brackets symmetrically in directions toward the support face so that a predetermined rotational friction is induced between the outer circumferential surface of the stem and the inside surfaces of the first and second brackets.