Pivoting-Tilting Cabin Door Without Sliding Guide Jamming
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Solution Overview
Problem
Confinement cabins for working operative areas face challenges with existing door systems that require large maneuvering spaces and are prone to jamming due to the presence of sliding guides, which are susceptible to obstructions from machining residues and liquids.
Innovation Solution
A pivoting-tilting door mechanism with an elastic transmission system that synchronizes the rotation of the door panel around a tilting axis with the movement of a movable arm, eliminating the need for sliding guides and allowing for efficient operation in limited spaces without jamming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If sliding doors are used to reduce maneuvering space, then the door can operate in limited spaces, but the door is exposed to jamming risks due to sliding guides being obstructed by machining residues
Solution Approach 1:
The patent removes the sliding guide component entirely from the door mechanism. Instead of sliding along guides, the door pivots on a vertical axis mounted on the cabin frame, eliminating the source of jamming while maintaining compact operation
Solution Approach 2:
The patent replaces the sliding mechanical system with a pivoting rotational system. The door rotates around a vertical pivot axis rather than sliding horizontally, substituting a jamming-prone mechanism with a more reliable rotational movement
2Device complexity
If hinged doors with opening towards the inside are used for constructional simplicity, then the door structure is simple, but large free space is required in front of the access opening
Solution Approach 1:
The patent employs asymmetric door configuration where the pivot axis is positioned off-center relative to the door panel, allowing the door to pivot within a compact arc that doesn't require large clearance in front of the opening, while maintaining simple hinged construction
3Volume of moving object
If pivoting-tilting doors are used to reduce maneuvering space, then the door can operate in smaller spaces, but sliding guides are still required which are susceptible to obstructions
Solution Approach 1:
The patent eliminates the sliding guide component from the pivoting-tilting door mechanism, retaining only the essential pivot function while removing the jamming-prone sliding guides that constrain the door's movement path
Data Source
Figure 1~2
Figure 3a~3c
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AI summary
The present invention relates to a confinement cabin (1) for working operative areas, comprising: - a load-bearing structure (2); - one or more confinement walls (3) connected to said load-bearing structure (2) to at least partially delimit an inner space of said cabin (1); - an access opening (4) to said inner space; - at least one door (10; 100) connected to said load-bearing structure (2) to close said access opening (4). Said at least one door (10; 100) is movable in opening and closing with a pivoting-tilting type movement and comprises: - at least one movable support arm (11a, 11b) which at the first end (11a', 11b') thereof is rotationally connected to said load-bearing structure (2) to rotate around a hinging axis (Y1); and - a closing panel (12) which is rotationally connected to a second end (11a", 11b") of said movable support arm (11a, 11b) to rotate around a tilting axis (Y2) parallel to the hinging axis (Y1). The rotation of the panel (12) around the tilting axis (Y2) is synchronized with the rotation of said at least one movable arm (11a, 11b) around the hinging axis (Y1) by means of an elastic transmission system (23) between a first pulley (21) coaxial to the hinging axis (Y1) and a second pulley (22) coaxial to the tilting axis (Y2) and integral with the panel (12). Said transmission system is configured so that the rotation of the panel around the tilting axis (Y2) is in the opposite direction to the rotation of said at least one movable arm (11a, 11b) around the hinging axis (Y1).