Magnetic Pivot Sash Stop for Barrier-Free Door Windows
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Solution Overview
Problem
Conventional door windows with barrier-free thresholds face challenges in maintaining accessibility and secure closure, as conventional stops require manual operation and can compromise the open position of the door.
Innovation Solution
A window design featuring a sash stop and support device with a movable rebate drive bolt and magnetic pivot drive, allowing for automatic locking and secure support without electrical actuators, ensuring stable and precise closure while maintaining accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional stops are used to define closed state and vertical height position, then secure closure is achieved, but accessibility of the threshold is compromised
Solution Approach 1:
The patent extracts the stop function from the threshold area by positioning the stop on the sash itself, away from the threshold. This allows the threshold to remain accessible while the stop provides secure closure by defining the closed state position of the sash.
Solution Approach 2:
The patent introduces a magnetic pivot drive means as an intermediary mechanism that automatically actuates the stop without requiring manual operation. The magnetic field serves as a mediator to move the stop into its locking position automatically when the sash approaches the closed state.
2Stability of the object's composition
If door stops are used to hold door leaves in open position, then open position is maintained, but manual release is required
Solution Approach 1:
The patent implements self-service functionality where the magnetic pivot drive means automatically actuates the stop without manual intervention. The system serves itself by using magnetic attraction to automatically move the stop into the locking position when the sash is in the open state, eliminating the need for manual release operations.
Solution Approach 2:
The patent replaces manual mechanical operation with a magnetic field-based actuation system. The magnetic pivot drive means uses magnetic attraction forces to automatically move the stop, substituting the need for manual mechanical manipulation.
3Measurement precision
If electrical actuators and drives are used for automatic locking, then precise stopping is achieved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex electrical actuators and drives with a simple magnetic pivot drive means. The magnetic field provides sufficient precision for stopping the sash at the correct position without requiring sophisticated electrical control systems, thereby reducing device complexity and cost.
Solution Approach 2:
The patent changes the actuation parameter from electrical to magnetic, using magnetic field strength and attraction forces to control the movement and positioning of the stop. This parameter change achieves precise stopping through magnetic force control rather than electrical actuation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides long-term reliable functionality, secure support, and precise locking without manual operation, maintaining accessibility and reducing costs by eliminating the need for electrical drives.
Implementation Method 1
a magnetic pivot drive means, and an abutment on the frame or sash, into which the support cam engages
Data Source
Figure 1a)
Figure 1b)
Figure 2
AI summary
Window (1), in particular door window, comprising a. a frame (200) and at least one sash (100, 101') rotatably attached thereto, b. which has at least one sash frame (101, 101'), wherein the sash frame (101, 101') accommodates a surface element (102, 102') and the sash frame (101, 101') is composed of several sash frame mullions (103-106, 103'-106') and c. with fittings for rotatably moving the sash (100, 100') relative to the frame (200) into an open state and into a closed state, d. wherein preferably a movable rebate locking bolt (107, 107') is provided for locking the sash (100, 100') in the closed state, which is movable into the frame (200) - in particular into a strike plate (318) that is attached to / in the frame (200) - and then engages there, e.and at least one sash stop and support device (300) designed to stop a rotational movement of the sash (100, 100') wherein f. the sash stop and support device (300) is further designed to lift the sash (100, 100') so that a lower corner of the sash (100, 100') facing away from the pivot fitting is firmly supported in the closed state and g. the sash stop and support device (300) has a support block and stop (305) movable by a magnetic pivot drive means (317) with a support cam (309) on the sash (100, 101') or frame (200) and has a counter-bearing (316) on the frame (200) or sash (100, 100') into which the support cam (309) engages at least in the closed state of the sash.