Hinge Shock Absorber and Restoring Unit for Collision Prevention
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Solution Overview
Problem
Conventional hinges face issues such as collision between stiff door panels and pivoting members, loose connections, gaps affecting retarding force, and difficulty in adjusting the throttle valve, especially when inadequately placed.
Innovation Solution
A hinge design featuring a connecting member, a first shaft member, a pivoting member with shock absorbers, and a restoring unit, including cushion members and a damping unit with adjustable throttle valve, to prevent collisions and ensure secure, controlled movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the door panel and pivoting member are made of stiff material, then the structural strength is improved, but the collision between door panel and pivoting member causes fracture
Solution Approach 1:
The patent introduces a cushion member positioned between the door panel and pivoting member that compresses before collision occurs, absorbing impact energy and preventing fracture of the stiff components
2Ease of manufacture
If the pivoting member is connected to the rotating shaft by a bolt, then the assembly is simple, but the connection may be loosed easily
Solution Approach 1:
The connection system is divided into multiple functional elements: a retaining ring for secure attachment, a spring for maintaining contact pressure, and a bolt for assembly. This segmented approach provides reliable connection while keeping the manufacturing process simple
3Ease of manufacture
If a gap is formed between the abutment member and seat member, then the assembly is easier to manufacture, but the retarding force controlled by the throttle valve is affected
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the abutment member and seat member. This sealing ring eliminates gaps while maintaining ease of manufacture by being a separate, easily installed component that ensures proper fluid sealing and retarding force control
4Device complexity
If the throttle valve can only be adjusted at one side, then the device complexity is reduced, but it is difficult to adjust when the hinge is placed inadequately
Solution Approach 1:
The throttle valve is designed with adjustable ports positioned at multiple locations around the hinge assembly. This universal design allows the throttle valve to be adjusted from any side regardless of hinge placement, while maintaining relatively simple device complexity through a unified valve mechanism
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 enhances safety by preventing collisions, secures connections, reduces friction, allows for easy adjustment of damping oil flow rate, and maintains precise control over the hinge's operation, thereby extending the lifespan of the objects connected.
Implementation Method 1
The shock absorber is adapted to be disposed between the limiting surface of the pivoting member and the second object for preventing collision between the pivoting member and the second object
Implementation Method 2
the damping oil in the second chamber 171 generates a retarding force to retard the movement of the abutment member 15
Implementation Method 3
The resilient member 16 is mounted in the seat member 17 to bias resiliently the abutment member 15 toward the central portion of the rotating shaft 13
Implementation Method 4
The throttle valve 19 is disposed in the connecting member 11 for adjusting the flow rate of the damping oil flowing through the oil passage 18
Data Source
AI summary
A hinge includes a connecting member, a first shaft member, a pivoting member, at least one shock absorber and a restoring unit. The first shaft member extends rotatably through the connecting member. The pivoting member is connected co-rotatably to the first shaft member, and is connected to the object. The pivoting member has at least one limiting surface facing the object. The shock absorber is disposed between the limiting surface of the pivoting member and the object for preventing collision between the pivoting member and the object. The restoring unit is disposed in the connecting member for driving rotation of the first shaft member toward a neutral position.