Sensor Fixture With Offset Fastening For Cylinder Tube
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Solution Overview
Problem
Conventional sensor fixtures for attaching sensors to cylinder tubes are cumbersome to adjust and have a bulky design, making it difficult to precisely position the sensor and risking the sensor's detachment due to unintentional loosening of the fastening mechanism.
Innovation Solution
A sensor fixture with a rail-shaped holder and a band portion that can be wound around the cylinder tube, featuring a fastening mechanism positioned offset from the holder, allowing for adjustable sensor placement and secure attachment with reduced bulkiness, using a band end portion with protrusions for secure engagement with the holder's sidewalls and a fastening screw for tension application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both end portions of the attachment band are hooked on the metal fitting formed integrally with the sensor, then the sensor can be securely attached to the cylinder tube, but the adjustment of the attachment position becomes cumbersome and the structure becomes bulky
Solution Approach 1:
The attachment band is divided into two separate end portions that can be independently connected to the sensor holder at different positions. This segmentation allows the band to be adjusted along the cylinder tube while maintaining secure attachment, resolving the contradiction between secure attachment and ease of adjustment.
Solution Approach 2:
The sensor holder is designed with a rail shape and connection holes at different positions, allowing the attachment band to be dynamically repositioned. The fastening mechanism enables easy adjustment of the attachment position while maintaining secure attachment through the engagement of protrusions with connection holes.
2Shape
If the fastening mechanism is positioned at the same location as the sensor holder, then the structure is compact, but the sensor fixture creates large bulging portions from the outer peripheral surface
Solution Approach 1:
The fastening mechanism is positioned at a different axial location than the sensor holder, distributing the structural elements along the length of the cylinder tube. This spatial distribution reduces localized bulging while maintaining overall compactness, as the components are arranged along the axial dimension rather than concentrating at a single point.
3Manufacturing precision
If the attachment band is made adjustable for position, then the sensor can be precisely positioned, but the fastening mechanism becomes more complex and prone to unintentional loosening
Solution Approach 1:
The fastening mechanism incorporates a self-locking feature where the protrusions on the attachment band engage with the connection holes in the sensor holder. This engagement provides inherent positioning and prevents unintentional loosening, achieving precise sensor positioning without requiring complex additional locking mechanisms.
Data Source
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AI summary
A sensor mounting tool (10) is provided with; a rail-shaped sensor holder (28) having a first side wall (36) in which a first connection hole (48) is formed; a band part (30) that has a first projection part (64), and that is formed to be wound on the outer peripheral surface (15) of a cylinder tube (14); and a fastening mechanism (32) that is for fastening the band part (30), and that is arranged at a position shifted away from the sensor holder (28) on the outer peripheral surface (15) of the cylinder tube (14).