Bifurcated Exercise Bench Backrest With Sliding Height Adjustment
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Solution Overview
Problem
Conventional adjustable exercise benches do not accommodate users of varying heights, leading to suboptimal safety and proper form during workouts as users must contort themselves to fit.
Innovation Solution
An exercise bench with a vertical mounting bar and bifurcated backrest featuring adjustable head and back pads, which can be slid and secured to different heights using pop-pins and rotatable knobs, allowing for customizable fit based on user height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional adjustable exercise benches are manufactured according to standard specifications, then manufacturing cost and simplicity are improved, but adaptability to users of different heights deteriorates
Solution Approach 1:
The backrest is divided into multiple segments (headrest portion, upper backrest portion, lower backrest portion) that can be independently adjusted in height. Each segment has its own adjustment mechanism with holes and pins, allowing users to customize the position of each segment to match their body dimensions, thereby solving the adaptability problem while maintaining a relatively simple manufacturing process using standard components
Solution Approach 2:
The backrest segments are designed to be dynamically adjustable rather than fixed. The adjustment mechanism allows users to move segments vertically along the backrest support bar and lock them at different positions using pins inserted through holes. This dynamic adjustability enables the same bench to accommodate users of various heights without requiring multiple different bench models
2Device complexity
If conventional adjustable exercise benches use a fixed backrest design, then device complexity is reduced, but adaptability to different user heights deteriorates
Solution Approach 1:
The backrest is segmented into adjustable portions (headrest, upper backrest, lower backrest) that can be independently positioned. Each segment connects to the backrest support bar through a standardized hole-pattern and pin mechanism, providing height adjustability without requiring complex mechanical systems. The segmentation allows for simple manufacturing of individual components that assemble into an adaptable whole
Solution Approach 2:
The adjustment mechanism uses universal components (holes drilled at regular intervals, standard pins, simple carriages) that can accommodate multiple functions. The same hole-pin system is used for all backrest segments, and the segments themselves can serve multiple purposes (head support, back support, or both simultaneously) depending on their positioning, reducing the need for specialized components for each function
Data Source
AI summary
An adjustable exercise bench includes a vertical mounting bar with a plurality of pre-drilled holes and a backrest mounted to the mounting bar. The backrest can be moved upward or downward. In one embodiment, the backrest is bifurcated and has an adjustable head pad and an adjustable back pad. The head pad and back pad are configured for slidable upward and downward movement along the mounting bar. A lower surface of the head pad and an upper surface of the back pad are sized and shaped for a substantially close sliding reception with each other.