Rotational-Sliding Door Mechanism with Adjustable Rod and Non-Welded Joints
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Solution Overview
Problem
Existing mechanisms for rotational-sliding doors are difficult to install on doors or closures with different dimensions, requiring skilled technicians and complex processes.
Innovation Solution
A mechanism with adjustable pivot means and a tubular rod system that allows for easy adaptation to various door sizes and heights, using non-welded connections and adjustable plates to secure the position of the shutter relative to the jambs, enabling installation by personnel without specialized skills.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed mechanism is used for rotational-sliding doors, then the door can function properly, but it cannot be easily adapted to doors with different dimensions
Solution Approach 1:
The patent applies the dynamics principle by making the rod length adjustable rather than fixed. The rod can be modified to different lengths to accommodate doors of various dimensions, transforming a static component into a dynamic one that adapts to different installation requirements while maintaining the overall mechanism structure.
Solution Approach 2:
The patent implements parameter changes by allowing modification of the rod length parameter. The rod can be cut to different lengths or extended using tubular elements to match the specific dimensions of different doors, enabling the same mechanism design to work across multiple door sizes without redesigning the entire system.
2Strength
If welding is used to secure the rod, then the connection is strong, but the installation becomes costly and risky
Solution Approach 1:
The patent replaces the welding process with a mechanical fastening system. Threaded inserts are installed in the rod, and nuts are used to secure the rod to the pivot means and arms. This substitution eliminates the need for welding equipment and skills, reduces installation costs, and removes safety risks associated with welding while maintaining adequate connection strength through the threaded mechanical joint.
3Reliability
If skilled technicians are required for installation, then the mechanism can be properly installed, but the installation process becomes time-consuming and expensive
Solution Approach 1:
The patent implements self-service by designing the mechanism with features that enable non-specialized personnel to install it independently. The adjustable rod length, threaded inserts, and nut-based fastening system are designed to be easily adjusted and secured without requiring welding skills or specialized technical knowledge. The mechanism includes all necessary adjustment features that allow the installer to adapt it to different door dimensions through simple mechanical operations.
4Ease of manufacture
If the rod length is fixed during manufacturing, then production is simplified, but the mechanism cannot be adapted to different door heights
Solution Approach 1:
The patent applies dynamics by making the rod length modifiable after manufacturing. Rather than producing different fixed-length rods for different door heights, the rod is designed to be cut to the required length or extended using tubular elements during installation, allowing a single manufacturing process to produce a universally adaptable component.
Solution Approach 2:
The patent implements segmentation by dividing the rod into modular sections or allowing it to be combined with additional tubular elements. This segmentation enables the rod to be assembled in different lengths by connecting multiple segments, providing adaptability to various door heights while keeping the base manufacturing process simple and standardized.
Data Source
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AI summary
A mechanism for the instalment of a door or other similar closure having a rotational-sliding movement, of the type comprising the following elements to associate to a shutter or the like: - first pivot means defining a first vertical axis (11) for the pivoting of the shutter (12), in a substantially central region thereof, to translation means arranged so as to slide in a corresponding guide (13) associated to the upper strut (14) of the frame (15) of the door; -second pivot means with an axis parallel to the axis of the first pivot means, for the pivoting of two arms (16,17), a first upper one (16) and a second lower one (17), that are both pivoted with one of their ends (21,22) to the frame (15) of the closure in proximity to a jamb (18) to define a second rotation axis (20), and have the opposite ends (23,24) reciprocally rigidly coupled by means of a rod (25), defining a third rotation axis (26) interposed between the first axis (11) and the second axis (20), passing through the shutter (12) in the direction of the height thereof. The second pivot means are rigidly coupled to the frame (15) with means for adjusting the distance of the second rotation axis (20) from the nearby jamb (18) of the door or the like; further the rod (25) is fixed to at least one of the two arms (16, 17) with a rigid connection device (27) that provides a non-welded joint between the rod (25) and the arms (16,17). Such mechanism according to the invention facilitates and improves the instalment of doors having a rotational-sliding movement.