Bar Locking Fastener for Pull-Up Systems
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Solution Overview
Problem
Existing pull-up systems are time-consuming and costly to manufacture due to complex welding requirements, and the alignment of components is often challenging, particularly with clamp bolts that rely on threaded nuts.
Innovation Solution
A pull-up system featuring a bar member and support assembly with a bar locking fastener that includes a flange nut and bolt, allowing for easy alignment and secure attachment without welding, using transverse and locking openings with polygonal configurations to prevent rotation and ensure secure clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a clamp bolt with threaded nut is used to secure the bar member, then the bar member can be releasably coupled to the support structure, but the alignment of components becomes challenging and the assembly process becomes time-consuming
Solution Approach 1:
The patent introduces a clamp body as an intermediary component that integrates multiple functions: it provides a clamp opening to receive the bar member, contains an integrated threaded bore for the clamp bolt, and incorporates a locking mechanism with a locking member. This intermediary component eliminates the need for separate alignment of nut and opening, as all features are integrated into one piece, thereby reducing assembly time while maintaining releasable coupling capability.
2Strength
If complex systems of components are welded together to form support arms, then the structural integrity is ensured, but the manufacturing process becomes time-consuming and costly
Solution Approach 1:
The patent merges multiple components into the clamp body: the clamp opening, the threaded bore, and the locking mechanism are all integrated into a single clamp body component. This consolidation reduces the number of parts that need to be manufactured and assembled, simplifying the manufacturing process while maintaining the structural integrity through the unified design of the clamp assembly.
3Strength
If a clamp bolt relies on a threaded nut welded over an opening, then the bar member can be clamped securely, but the construction becomes costly and requires precise alignment
Solution Approach 1:
The clamp body serves as an intermediary that integrates the threaded bore and clamp opening in fixed spatial relationship. The locking member with complementary geometry engages with the threaded bore, eliminating the need for separate alignment operations. The clamp body mediates between the clamp bolt and the bar member, ensuring secure clamping without requiring high manufacturing precision for alignment.
Data Source
AI summary
A pull up system including a bar member a support assembly. The bar member is coupled to the support assembly and the support assembly is attachable to an outside surface. A bar locking fastener is likewise disclosed, as is a support assembly for a pull up system.