Weightlifting Bar Horizontal Movement Restriction
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Solution Overview
Problem
Existing weightlifting devices lack effective mechanisms to restrict horizontal movement of weightlifting bars during exercises, potentially leading to unsafe conditions and reduced safety in weightlifting sessions.
Innovation Solution
A weightlifting frame with vertically-oriented channels and abutments that secure a horizontally-oriented weightlifting bar, limiting its horizontal movement while allowing vertical movement, thereby enhancing safety and control during exercises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a weightlifting bar is used without horizontal movement restrictions, then the ease of operation is improved, but the safety is worsened
Solution Approach 1:
The weightlifting bar is segmented into a middle section and terminal sections, with the middle section specifically designed to engage with frame members. This segmentation allows the bar to maintain ease of operation at the terminal sections while the middle section provides safety through horizontal movement restriction via engagement with vertically-oriented channels in the frame members.
2Reliability
If frame abutments are added to restrict horizontal movement, then the safety is improved, but the device complexity is worsened
Solution Approach 1:
The frame abutments are merged with the middle section of the weightlifting bar, forming an integrated structure. The abutments are positioned on opposite sides of the middle section and work together with the vertically-oriented channels in the frame members to restrict horizontal movement. This merging reduces the number of separate components and simplifies the overall device while maintaining safety functionality.
3Reliability
If the bar is constrained to vertical movement only, then the safety is improved, but the adaptability is worsened
Solution Approach 1:
The engagement between the frame abutments and vertically-oriented channels is designed to be dynamic rather than rigid. The abutments can move vertically within the channels while maintaining horizontal restriction, allowing the bar to adapt to different exercise movements and positions. This dynamic engagement provides safety through horizontal constraint while maintaining adaptability for various weightlifting exercises.
Data Source
AI summary
A weightlifting frame includes a base, and first and second rigid frame members defining respective vertically-oriented channels. A weightlifting bar includes first and second terminal sections, a middle section, first and second plate abutments fixed to the weightlifting bar, and first and second frame abutments fixed to the bar. First and second bar spaces are respectively defined by first and second plate and frame abutments. The bar engages the frame with the first frame member disposed between the first frame abutment and the first plate abutment, and with the second frame member disposed between the second frame abutment and the second plate abutment, such that the first and second frame abutments abut the first and second frame members when the bar reaches a predetermined angle from horizontal.