Box Hinge Assembly with Elliptical Rail to Reduce Door Protrusion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing box devices with single hinge shaft designs often cause interference or collision between the door body and external structures during rotation, particularly in embedded installations, due to the door body exceeding the outer sidewall of the box body.
Innovation Solution
A box device with a hinge assembly featuring a first sliding shaft and a second sliding rail, where the sliding shaft moves along a sliding rail that linearly extends and a second sliding rail that extends along an ellipse, allowing the door body to tilt and move towards a target side, reducing the risk of interference with external structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single hinge shaft design is used, then the hinge structure is simple, but the door body exceeds the outer sidewall of the box body during rotation causing interference with external structures
Solution Approach 1:
The single hinge shaft is segmented into two sliding shafts (first sliding shaft and second sliding shaft) that move independently along their respective sliding rails. This segmentation allows the door body to follow a controlled trajectory that prevents it from exceeding the outer sidewall during rotation, thereby resolving the interference issue while maintaining reasonable structural complexity
Solution Approach 2:
Sliding rails are introduced as intermediary elements between the hinge structure and the door body. These rails guide the sliding shafts along specific paths (one linear, one elliptical), mediating the motion of the door body to ensure it does not interfere with external structures during opening and closing operations
2Ease of operation
If the door body rotates freely around a single hinge shaft, then the door can open easily, but the door body collides with external structures in embedded installations
Solution Approach 1:
The hinge structure transitions from a static single shaft to a dynamic system with two sliding shafts moving along rails. The sliding shafts dynamically adjust the door body's position during rotation, maintaining ease of operation while preventing collision through controlled motion paths
Solution Approach 2:
One of the sliding rails extends along an ellipse (curved path) rather than a straight line. This curvature in the sliding path guides the door body through a rounded trajectory that naturally prevents it from protruding beyond the outer sidewall during rotation, reducing collision risk while maintaining operational smoothness
3Ease of manufacture
If a traditional hinge assembly is used, then the installation is straightforward, but the door body interferes with walls in embedded installations
Solution Approach 1:
The traditional single-piece hinge is segmented into multiple components (two sliding shafts, two sliding rails, connecting members) that work together. This segmentation enables precise control of the door body trajectory, preventing wall interference in embedded installations while keeping the overall installation process manageable through modular assembly
Data Source
AI summary
The present application discloses a box device. A hinge assembly of the box device is provided with a first sliding rail and a second sliding rail. The first sliding rail linearly extends, and the second sliding rail extends along an ellipse. When a door body blocks an opening, the first sliding rail is obliquely disposed opposite to the plane in which the opening is located, and the part of the second sliding rail away from a box body is close to a pivoting side relative to the first sliding rail, and the door body moves towards a target side of the box during a process from blocking the opening by the door body to opening the door body relative to the box body, to reduce the extent to which the door body exceeds an outer sidewall of the box body.