Parallel Beam Displacement Mechanism for Shutter Devices
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Solution Overview
Problem
The existing shutter devices face limitations in achieving greater displacement of the shutter due to the limited extension of the beam, which can lead to damage from accumulated load, especially when frequently extended.
Innovation Solution
A displacement increasing mechanism is introduced, comprising a fixing portion, first and second actuators, and beams arranged in parallel, where the first actuator pulls the first beam and the second actuator pushes the second beam to drive a target member, allowing for greater displacement with low voltage application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the beam is greatly extended to achieve greater shutter displacement amplitude, then the shutter displacement amplitude is improved, but the beam extension is limited and the beam may be damaged due to accumulated load
Solution Approach 1:
The single beam structure is segmented into multiple beams (first beam, second beam, third beam) arranged in parallel. Each beam carries a portion of the load, allowing the system to achieve greater displacement without overloading individual beams. The beams are connected to a common drive target member, distributing the mechanical stress across multiple elements.
Solution Approach 2:
Multiple beams are merged into a parallel configuration where they work together to drive the shutter. The beams are connected to a common drive target member, combining their individual displacement contributions to achieve the desired shutter amplitude while sharing the mechanical load.
2Productivity
If the beam is frequently extended to drive the shutter, then the shutter operation frequency is improved, but load accumulation on the beam increases and may cause damage
Solution Approach 1:
The load-bearing function is segmented across multiple beams, so that frequent operation does not accumulate excessive load on any single beam. Each beam experiences reduced cyclic stress, extending the operational life of the mechanism.
Solution Approach 2:
The system allows individual beams to be replaced if damaged, while the overall mechanism remains functional. The parallel beam structure provides redundancy, so failure of one beam does not completely disable the shutter mechanism.
3Device complexity
If a single actuator is used to drive the beam, then the device complexity is reduced, but the displacement amplitude of the shutter is limited
Solution Approach 1:
Multiple actuators are merged into the system, each driving a separate beam in the parallel configuration. The combined effect of multiple actuators produces greater displacement amplitude than a single actuator could achieve alone, while maintaining reasonable system complexity through modular architecture.
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
This configuration enables significant displacement of the drive target member with minimal actuator movement, reducing the risk of beam damage and achieving greater amplitude with lower voltage, enhancing the operational efficiency of the shutter device.
Implementation Method 1
The first actuator is driven to pull the first beam from a second end portion side in the direction of extending the first beam
Implementation Method 2
The second actuator is driven to push the second beam from a fourth end portion side in the direction of extending the second beam
Data Source
AI summary
A displacement increasing mechanism has a fixing portion, first and second actuators coupled to the fixing portion, a first beam having first and second end portions and coupled to the first actuator at the first end portion, a second beam having third and fourth end portions and coupled to the second actuator at the third end portion, and a drive target member coupled to a parallel arrangement portion at which the first and second beams are arranged in parallel with each other. The first actuator is driven to pull the first beam from a second end portion side in the direction of extending the first beam, and the second actuator is driven to push the second beam form a fourth end portion side in the direction of extending the second beam.