Universal Grease Nipple Cap with Multi-Diameter Attachment Holes
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Solution Overview
Problem
Conventional protective caps for grease nipples are not adaptable to various sizes, leading to the need for multiple caps and resulting in waste, as they are typically designed for specific combinations of nipple head and shank diameters.
Innovation Solution
A protective cap with a flexible tether connecting a cap portion and an attachment portion, featuring multiple through holes of different diameters to accommodate various shank diameters and head sizes, made from elastic materials for universal fit and usability, with optional information labels and visual/tactile identifiers for easy selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional protective caps are designed for specific combinations of nipple head and shank diameters, then they provide precise fit for particular sizes, but multiple caps are required for different sizes leading to waste and complexity
Solution Approach 1:
The protective cap is designed with multiple through holes of different diameters in the attachment portion, allowing a single cap to accommodate various shank diameters. The cap portion can fit different nipple head sizes while the attachment portion provides multiple attachment options, making one cap universally applicable to multiple grease nipple configurations rather than requiring separate caps for each size combination
Solution Approach 2:
The cap is divided into two functional portions: a cap portion that fits over the nipple head and an attachment portion that secures to the shank. This segmentation allows independent optimization of each portion - the cap portion maintains precise fit for the head while the attachment portion provides multiple through hole options for different shank sizes, resolving the contradiction between precision and versatility
2Adaptability or versatility
If sets of multiple caps are carried to cover all possible grease nipple sizes, then complete coverage is achieved, but portability and simplicity are reduced
Solution Approach 1:
A single protective cap design incorporates multiple through holes with different diameters in the attachment portion, enabling one cap to serve multiple grease nipple sizes. This eliminates the need to carry sets of different caps, reducing the number of components from multiple separate caps to just one universal cap that maintains complete size coverage
Solution Approach 2:
The invention merges the functionality of multiple size-specific caps into a single multi-functional cap. By combining multiple through hole options and a universally fitting cap portion into one integrated component, the solution reduces complexity while maintaining the ability to cover all grease nipple sizes
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 cap reduces waste by fitting multiple grease nipple sizes, enhancing usability and preventing maintenance errors through adaptable design and informational features.
Implementation Method 1
the cap portion and the attachment portion of the protective cap are connected by a flexible tether
Implementation Method 2
at least the attachment portion of the protective cap is made from a polymer material that readily allows elastic deformation
Data Source
AI summary
The present invention relates to a protective cap (20) for a grease nipple. The protective cap comprises a removable cap portion (22) with an internal cavity (23) that is shaped to fit over and enclose a nipple head of the grease nipple, and comprises an attachment portion (24) that is adapted to remain attached to the grease nipple when the cap portion is removed. According to the invention, the attachment portion (24) of the protective cap (20) comprises a plurality of through holes (26, 27, 28, 29) each of which has a unique diameter.