Adjustable Tilt-Turn Window Operating Device
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Solution Overview
Problem
The existing operating devices for tilt and turn doors or windows require multiple production lines and storage spaces due to varying model requirements, leading to increased production costs and complexity, as different production lines are needed for different opening sequences and angles.
Innovation Solution
An operating device with a slider, positioning body, connecting arm, and selector element that includes adjustable means, such as a template or fork-shaped template, to modify the slot extension and pin stroke, allowing for a single component design that can adapt to various opening sequences and angles without replacing existing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different production lines are used for different opening sequences and angles, then manufacturing precision and reliability are improved, but device complexity and production costs increase
Solution Approach 1:
The slot extension is made adjustable through interchangeable template elements (full template, first template, second template) that can be swapped depending on the required opening sequence. This dynamic reconfiguration allows a single production line to produce devices for different market requirements without requiring multiple dedicated production lines, thereby reducing complexity while maintaining reliability.
Solution Approach 2:
The connecting arm is designed with a universal slot structure that can accommodate different template configurations. The slot can be extended to different lengths (first extension for tilt-turn sequence, second extension for turn-tilt sequence) by changing the template, making the same base component suitable for multiple opening sequences and market requirements.
2Manufacturing precision
If multiple production lines are established for different models, then manufacturing precision is improved, but production costs and storage needs increase
Solution Approach 1:
The slot extension mechanism is segmented into modular components: a base slot structure and interchangeable template elements. The templates can be independently manufactured and then assembled onto the connecting arm, allowing precision to be achieved through modular assembly rather than requiring entirely separate production lines for each configuration.
Solution Approach 2:
The slot extension parameter is made variable through the template system. By changing the template (from first template to second template or full template), the effective slot extension length changes, allowing the same production line to manufacture devices with different opening angles and sequences without retooling, thus reducing production costs while maintaining precision.
3Ease of manufacture
If fixed pin positions are used in the connecting arm, then ease of manufacture is improved, but adaptability to different opening sequences decreases
Solution Approach 1:
The pin position is made dynamic through the template system. The templates provide different extension lengths and positioning configurations that can be selected based on the required opening sequence. This allows the connecting arm to adapt to different market requirements (tilt-turn or turn-tilt sequences) without requiring different fixed pin positions in the arm itself.
Data Source
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AI summary
Described is an operating device for a tilt and turn door or window (1) comprising a fixed frame (2) and a movable sash (3) connected to each other along a corresponding vertical upright (4, 5) by a pair of hinges, a lower hinge (6) and an upper hinge (7), and a control handle (8) positioned on the upright (9) of the sash (3) opposite to that connected to the fixed frame (2); the operating device (100) comprises a slider (10) for transmitting the movement of the handle (8) housed and slidable inside a groove (11) of an upper crosspiece (12) of the sash (3); a positioning body (13) fixed in the groove (11) of the upper crosspiece (12); the body (13) has a slot (14) with a longitudinal operating extension (L); a connecting arm (15) articulated, at a first end, to the movable portion of the upper hinge (7) and, at the other end, to the positioning body (13) by means of a pin (16) housed in the slot (14) of the positioning body (13); the arm (15) has a relative surface provided with two elements (17, 18) protruding towards the groove (11) and a free zone (19), spaced from each other along the arm (15); a selector element (20) connected to the slider (10), slidable inside the groove (11) of the upper crosspiece (12) for intercepting, according to a sequence predetermined by the relative position of the protruding elements (17, 18) and the free zone (19), the protruding elements (17, 18) and free zone (19), in such a way as to define corresponding closed, turning opening and tilted open configurations which can be adopted by the movable sash (3), the device (100) comprising means (32) for adjusting the stroke of the pin (16) of the connecting arm (15) inside the slot (14) of the positioning body (13); the adjusting means (32) being positioned on the positioning body (13) and movable between several stable positions inside the slot (14) for modifying the longitudinal operating extension (L).