Adjustable Connecting Arm for Tilt Turn Window Hinges
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Solution Overview
Problem
Current 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 and storage costs, as different sequences and opening angles necessitate distinct component designs.
Innovation Solution
An operating device with a connecting arm featuring removable positioning means and adjustable slot extensions, allowing for modification of opening sequences and angles without replacing components, using a single model with interchangeable protruding elements and adjustable pin stroke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different component designs are used for different opening sequences and angles, then the door or window can meet various market requirements, but production costs and storage needs increase due to multiple production lines
Solution Approach 1:
The connecting arm is designed as a universal component that can perform multiple functions by simply repositioning the pin along its elongated slot. The same arm structure accommodates different opening sequences (tilt-first or turn-first) and different opening angles without requiring different production lines, thereby reducing device complexity while maintaining adaptability.
Solution Approach 2:
The pin position within the elongated slot of the connecting arm is made dynamically adjustable rather than fixed. This allows the operational characteristics of the door or window to be changed by simply moving the pin to different positions along the slot, enabling the same physical component to adapt to different market requirements without creating additional component variants.
2Ease of manufacture
If fixed pin positions in the connecting arm are used, then manufacturing is simpler, but adaptability to different opening sequences is reduced
Solution Approach 1:
The connecting arm is segmented into functional zones along its elongated slot, with specific regions designated for different opening sequences. The pin can be positioned in different segments of the slot to achieve tilt-first or turn-first operation. This segmentation allows the arm to be manufactured as a single piece with built-in adaptability, combining ease of manufacture with versatility.
3Adaptability or versatility
If multiple component designs are produced for different opening angles, then specific market requirements are met, but storage spaces and costs increase
Solution Approach 1:
A single universal connecting arm design with an elongated slot replaces the need for multiple specialized arm designs for different opening angles. The pin can be positioned at different locations along the slot to achieve various opening angles, thereby reducing the quantity of different component models that need to be stored and manufactured, while still meeting specific market requirements.
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 at least one (18) of the protruding elements (17, 18) provided with removable positioning means (21) acting between at least one (18) of the protruding elements (17, 18) and the connecting arm (15) for modifying the position of the protruding element (18) relative to the other protruding element (17), along the arm (15), in such a way as to vary the sequence of configurations which can be adopted by the movable sash (3).