Adjustable Bench Assembly with Pivot and Slide Mechanisms
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Solution Overview
Problem
Existing exercise benches lack adjustability, which limits user comfort and support during various exercises, as they do not accommodate individual preferences for angle and position effectively.
Innovation Solution
An adjustable bench assembly with a frame, pivotably connected seat and back supports, and sliding and arcuate assemblies that allow for independent adjustment of seat and back positions, enabling a range of motion from 15 to 120 degrees for the seat and 15 to 95 degrees for the back, along with a leg support arrangement for added stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an exercise bench is designed with fixed seat and back positions, then the structure is simple and stable, but user comfort and adaptability are limited
Solution Approach 1:
The patent applies dynamics by transforming the fixed bench into an adjustable one through pivot assemblies and arcuate assemblies. The seat support and back support are made movable relative to the frame, allowing users to change positions dynamically. The pivot assemblies enable rotational movement while the arcuate assemblies guide the motion along curved paths, creating a dynamic system that adapts to user needs.
Solution Approach 2:
The bench is segmented into independent adjustable components: the seat support, back support, and leg support can each be adjusted separately. The pivot assemblies and arcuate assemblies are distinct modular units that can be manufactured and assembled independently. This segmentation allows for easier manufacturing, maintenance, and customization while achieving high adaptability.
2Adaptability or versatility
If multiple adjustment mechanisms are added to the bench, then adaptability improves, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent merges the pivot function and arcuate guidance into integrated assemblies. The pivot assembly includes a pivot pin and arcuate member that work together as a unified mechanism. The arcuate assembly combines the arcuate member with detents and springs in a single manufacturable unit. This merging reduces the total number of separate parts while maintaining independent adjustment capability for seat and back.
Solution Approach 2:
The adjustment mechanisms are designed to be self-servicing through spring-loaded detents that automatically engage with position indicators on the arcuate members. Users can easily adjust positions by overcoming the spring force, and the system self-locks into place without requiring additional fastening steps. This self-service design simplifies operation and reduces manufacturing complexity compared to systems requiring multiple fasteners or tools.
Data Source
AI summary
An adjustable bench has a frame with a seat support pivotably coupled to the frame. The seat support includes a slide assembly which allows the seat to be slidably positioned relative to the frame. A back support is also pivotably coupled to the frame.