Exercise Bench Pivot Stop Mechanism for Pin-Free Seat Locking
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Solution Overview
Problem
Existing exercise equipment is often bulky, difficult to collapse for storage, and not suitable as furniture, requiring dedicated space and posing challenges for users in small living spaces, and traditional assembly methods for exercise benches are cumbersome.
Innovation Solution
A pivot stopping mechanism for a foldable exercise bench that allows secure adjustment of seating angles without the need for assembly or adjustment pins, using a linkage system with bent plates and tabs to lock positions, enabling easy conversion between seating and arm rest configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional assembly methods with pins and adjustments are used, then secure positioning is achieved, but assembly complexity and time increase
Solution Approach 1:
The patent removes traditional pins and adjustment mechanisms from the assembly process. The telescopic leg structure achieves secure positioning through its inherent mechanical design - specifically, the cam mechanism that locks the telescopic tube in place without requiring separate fastening components. This extraction of unnecessary parts directly reduces assembly complexity while maintaining positioning reliability.
Solution Approach 2:
The telescopic leg structure is designed to be self-adjusting and self-locking. The cam mechanism automatically locks the telescopic tube at the desired length without requiring user intervention with pins or tools. The structure serves itself by incorporating the locking function into the basic mechanical design, eliminating the need for separate assembly steps.
2Reliability
If exercise equipment is designed for stability and functionality, then performance is improved, but storage space requirements increase
Solution Approach 1:
The bench is divided into modular components with telescopic legs that can be independently adjusted and collapsed. The seat and backrest are separate elements that can be folded together with the leg structure. This segmentation allows the equipment to maintain full functionality when assembled while collapsing into a compact configuration for storage, directly addressing the space-performance contradiction.
Solution Approach 2:
The patent employs dynamic structures including telescopic legs with cam locks and foldable seat/backrest components. These dynamic elements allow the bench to transition between a stable, functional exercise state and a compact storage state. The telescopic mechanism provides adjustable leg lengths for different exercises while enabling compact folding, and the foldable seat and backrest maintain structural integrity during use but collapse flat for storage.
Data Source
AI summary
According to aspects of the present disclosure, a seat of an exercise bench may be repositioned (e.g., raised and rotated) to function as an elbow or arm rest for various weightlifting exercises (referred to as the “deployed position”). The repositioning of the seat (or arm rest) is achieved with a pivot stopping mechanism that securely limit the desired reposition angle and location during adjustment.