Weightlifting Rack Bracket Assembly With Welded Pin Strength
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Solution Overview
Problem
Existing weightlifting brackets and hooks, such as J-cups, face issues with safety and strength, particularly under high usage and varying user sizes, leading to potential failure and premature deformation.
Innovation Solution
A bracket assembly with a back plate, clasp member, and pin configuration that includes an enlarged pin head welded to the back plate, providing enhanced mechanical strength and adjustable positioning for beams, along with protective panels to prevent injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional J-cup brackets are used with pins and channels, then the device complexity is low and ease of manufacture is good, but the strength and reliability are insufficient under high usage and varying user sizes
Solution Approach 1:
The bracket is divided into multiple components: a back plate for mounting, a clasp member with extending and encasing portions for beam engagement, a pin with head and shank for securing, and protective panels. This segmentation allows each component to be optimized for its specific function while collectively providing enhanced strength and reliability.
Solution Approach 2:
The clasp member is nested within the back plate structure, with the extending portion integrating into the back plate and the encasing portion surrounding the beam. The pin is nested through the back plate and engages with the clasp member, creating a layered nested structure that maximizes strength while managing complexity.
2Reliability
If the pin head is enlarged and welded to the back plate, then the mechanical strength and reliability are improved, but the manufacturing precision and welding quality requirements increase
Solution Approach 1:
The pin opening in the back plate is pre-configured with precise dimensions and positioning to receive the pin with pre-set tolerances. This preliminary preparation ensures that when the pin is welded to the back plate, the welding process starts with optimal alignment and positioning, reducing the overall welding precision requirements while maintaining high reliability.
3Adaptability or versatility
If the clasp member defines a channel to receive the beam, then the adaptability for different beam positions and user sizes is improved, but the device complexity increases
Solution Approach 1:
The clasp member serves multiple functions: the extending portion provides structural support and attachment to the back plate, while the encasing portion creates a channel that can accommodate beams at various positions. This multi-functional design allows a single component to handle different beam positions and user sizes without requiring multiple separate parts, thereby improving adaptability while managing complexity.
4Object-affected harmful factors
If protective panels are added to prevent injury, then the safety is improved, but the device complexity and manufacturing steps increase
Solution Approach 1:
The protective panels are merged with the existing bracket components. The panels are positioned to work in conjunction with the back plate, clasp member, and pin structure, providing protection while integrating into the overall assembly. This merging approach allows safety features to be added without requiring completely separate manufacturing processes, thereby improving safety while minimizing the increase in manufacturing complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The enhanced bracket assembly improves mechanical strength and safety by securely engaging beams with precise tolerances and protective features, reducing the risk of failure and deformation, thus ensuring safer and longer-lasting performance.
Implementation Method 1
The head is welded to the outer side of the back plate
Data Source
AI summary
A bracket assembly includes a back plate with outer and inner sides and a pin opening extending therethrough. A clasp member has an extending portion and an encasing portion extending from the extending portion. The extending and encasing portions and the inner side of the back plate define a channel configured to receive a rack beam. A pin seated in the pin opening has a shank and an enlarged head positioned at the outer side of the back plate. The shank extends through the opening into the channel and is configured to engage the rack beam within the channel. The head may be welded to the outer side of the back plate. A functional member for use in a weightlifting exercise is connected to the back plate and extends away from the back plate. The functional member may be extension member defining a support surface.