Door Closing Sequence Control via Electromagnetic Extraction
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Solution Overview
Problem
Existing closing sequence controls for double-leaf doors require complex and cost-intensive constructions with low power/energy density, making it difficult to accommodate locking mechanisms in narrow slide rails, and are not cost-effective for production and installation in limited spaces.
Innovation Solution
A closing sequence control system utilizing hydraulic or pneumatic cylinders with movable blocking pins and fluid lines, along with electrically actuated valves, to block and release the sliding pieces in the slide rail, allowing for compact and cost-effective operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional locking mechanisms with gears are used, then sufficient holding force is achieved, but device complexity and installation space requirements increase
Solution Approach 1:
The patent extracts and eliminates the gear mechanism from the locking system, replacing it with a direct-acting electromagnetic holder that applies holding force without mechanical transmission elements. This extraction of the gear component resolves the contradiction by maintaining sufficient holding force through direct electromagnetic actuation while dramatically reducing device complexity.
Solution Approach 2:
The patent substitutes the mechanical gear-based locking system with an electromagnetic holding mechanism. The electromagnetic holder directly generates the required holding force through magnetic fields, replacing the mechanical advantage provided by gears with electromagnetic force generation, thereby reducing mechanical complexity while maintaining or improving holding capability.
2Force
If traditional locking mechanisms with gears are used, then sufficient holding force is achieved, but installation space increases
Solution Approach 1:
By extracting the gear mechanism and its associated components, the patent significantly reduces the spatial footprint of the locking system. The electromagnetic holder requires minimal installation space compared to gear mechanisms, as it eliminates the need for gear teeth, shafts, and housing space required for mechanical transmission.
Solution Approach 2:
Replacing the mechanical gear system with an electromagnetic holder reduces installation space because electromagnetic actuators can generate high forces in compact configurations. The magnetic field generation requires minimal physical space compared to the mechanical components needed for gear-based force multiplication.
3Area of stationary object
If narrow slide rails are used, then space efficiency is improved, but accommodation of locking mechanisms becomes difficult
Solution Approach 1:
The patent extracts the locking mechanism from the slide rail environment, allowing the use of narrow slide rails without compromising locking functionality. The electromagnetic holder and associated components are positioned outside or integrated into the door structure rather than requiring space within the slide rail, enabling space-efficient narrow rail design while maintaining full locking capability.
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
Enables the manufacture and installation of a cost-effective closing sequence control that can operate within the smallest of spaces, meeting current design criteria while effectively blocking and releasing the sliding pieces in the slide rail.
Implementation Method 1
The stationary leaf cylinders and the active leaf cylinders are designed as hydraulic cylinders or pneumatic cylinders
Implementation Method 2
This switching element can be actuated, for example, by means of an electromagnet
Data Source
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AI summary
The present invention relates to a closing sequence control for a door having a fixed leaf (1) and an active leaf (2), comprising: - a guide rail (3), - a fixed leaf sliding piece (1.2) guided linearly in the guide rail (3) and associated with the fixed leaf (1), - a first fixed leaf cylinder (1.3) which can be actuated by a linear movement of the fixed leaf sliding piece (1.2), - a second fixed leaf cylinder (1.3) which blocks the fixed leaf sliding piece (1.2) in a first position and releases it in a second position, - a first fixed leaf fluid line (1.5) between the first fixed leaf cylinder (1.3) and the second fixed leaf cylinder (1.4) in order to move the second fixed leaf cylinder (1.4) into the first position when the first fixed leaf cylinder (1.3) is actuated, - a fluid in the first fixed leaf fluid line (1.5) arranged fixed wing switching element (1.6), which selectively blocks or releases a free fluid flow between the first fixed-wing cylinder (1.3) and the second fixed-wing cylinder (1.4), - a moving-wing sliding piece (2.2) linearly guided in the guide rail (3) and associated with the moving-wing (2), - a first moving-wing cylinder (2.3) which can be actuated by a linear movement of the moving-wing sliding piece (2.2), - a second moving-wing cylinder (2.4) which blocks the moving-wing sliding piece (2.2) in a first position and releases it in a second position, - a first moving-wing fluid line (2.5) between the first moving-wing cylinder (2.3) and the second moving-wing cylinder (2.4) in order to move the second moving-wing cylinder (2.4) into the first position when the first moving-wing cylinder (2.3) is actuated, - a in the first wing fluid line (2.5) wing switching element (2.6) arranged by the wing switching element (2.2) is actuated and selectively blocks or releases a free fluid flow between the first moving leaf cylinder (2.3) and the second moving leaf cylinder (2.4). This is intended to create a closing sequence control that, with cost-effective manufacturing and assembly in the smallest installation space, enables the blocking and releasing of a sliding piece in a guide rail.