Telescoping Rear Support Base for Rowing Machine Height Adjustment
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Solution Overview
Problem
Current rowing machines lack vertical height adjustability in their rear-end support, which can lead to discomfort and inefficiency for users of varying heights, as they cannot customize the device to fit their specific needs.
Innovation Solution
A vertically adjustable rear support base system that includes an outer and inner vertical support beam with a latch pin assembly, allowing users to manually adjust the height by using a lever and lift handle, enabling the rear support base to be set to different heights through a telescoping mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the rear support base is made fixed at a single height, then the structural simplicity is maintained, but the adaptability to users of varying heights is reduced
Solution Approach 1:
The rear support base is divided into an outer vertical support beam and an inner vertical support beam that can move independently relative to each other. The inner beam can be positioned at multiple discrete height levels within the outer beam, allowing height adjustment while maintaining structural integrity through the segmented design.
Solution Approach 2:
The rear support base transitions from a fixed static structure to a dynamic adjustable structure. The inner vertical support beam can move vertically within the outer beam to different positions, and the latch pin mechanism enables dynamic adjustment while maintaining stability when locked at a desired height.
2Ease of operation
If a telescoping mechanism with multiple components is added for height adjustment, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The latch pin assembly includes a spring-biased mechanism that automatically engages with adjustment holes to lock the inner support beam at the desired height. The system is self-locking through the spring force that pushes the latch pin into engagement, reducing the need for additional locking components or complex fastening mechanisms.
Solution Approach 2:
The latch pin acts as an intermediary element between the inner and outer support beams. It transfers and secures the positional relationship between the two beams at selected heights, enabling simple height adjustment without requiring direct mechanical coupling or complex fastening systems.
Data Source
AI summary
A rowing machine exercise device includes a vertically adjustable rear support base. The vertically adjustable rear support base includes an outer vertical support beam coupled to and extending down from the rowing machine frame, where the outer vertical support beam has a vertical channel extending upward therein from a bottom of the outer vertical support beam and has a latch pin hole extending through a wall of a bottom portion of the vertical support beam; an inner vertical support beam received in a telescoping manner within the outer support beam through the bottom of the outer support beam, where the inner vertical support beam has a plurality of adjustment holes uniformly spaced along a vertical line in an outer wall of the inner vertical support beam.