Chain Pin Press-Out Tool for Narrow Link Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tools for driving chain pins out of chain links are bulky, poorly suited for portable use, and struggle with narrowly designed chain types due to limitations in positioning and force application.
Innovation Solution
A tool with a handle body and a press-out device that includes a guide device allowing the press-out device to be displaced between a position for use and an out-of-use position, enabling better alignment and force application on chain pins, and accommodating narrowly designed chains. The tool also features magnetic fixation and a recess for storing a chain lock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If known tools are designed with large dimensions for stationary workshop use, then machining precision and force application are improved, but portability and packing volume deteriorate
Solution Approach 1:
The tool is divided into a handle body and a press-out device that can be separated. The press-out device can be removed from the handle body when not in use, reducing the effective packing volume while maintaining full functionality when assembled for machining operations
Solution Approach 2:
The press-out device is designed with movable projections that can extend and retract. When retracted, the overall length and volume of the tool are minimized for portable storage. When extended during operation, sufficient space is provided for proper alignment and application of force to drive out chain pins
2Volume of moving object
If miniaturized embodiments are used in multitools to save space, then portability is improved, but alignment precision and force application capability deteriorate
Solution Approach 1:
The press-out device features movable projections that can extend beyond the handle body during operation. This dynamic extension allows the tool to achieve sufficient alignment precision and force application capability only when needed, while maintaining a compact form factor for portability when the projections are retracted
Solution Approach 2:
The movable projections are designed to nest within or alongside the handle body when not in use. This nesting arrangement minimizes the overall tool dimensions for portable storage while allowing full extension during machining operations to ensure proper alignment and force application
3Ease of operation
If comb-like positioning elements are used, then chain link positioning is improved, but compatibility with narrow chain designs deteriorates
Solution Approach 1:
The positioning system transitions from a two-dimensional comb-like structure to a three-dimensional arrangement with movable projections that can extend in multiple directions. This allows the positioning elements to adapt to varying chain widths by adjusting their extension distance, thereby maintaining compatibility with both standard and narrow chain designs while preserving positioning accuracy
4Device complexity
If the press-out device is fixed in position, then structural simplicity is improved, but adaptability for different chain types and manual applicability deteriorate
Solution Approach 1:
The press-out device incorporates movable projections that can extend and retract to accommodate different chain types and configurations. This dynamic adjustment capability allows the same tool structure to adapt to various chain widths and designs without requiring multiple specialized tools, thereby improving versatility while maintaining relatively simple overall structure
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 tool provides improved manual applicability and transportability, enabling effective machining of various chain types, including those with narrow designs, while allowing for space-saving storage and separate handling of components.
Implementation Method 1
The press-out device can be fixed in the first position against the handle body by magnetic means
Data Source
AI summary
A tool for driving a chain pin out of a chain link includes a handle body which extends along a longitudinal axis and has a positioning element at a first end along the longitudinal axis, and a press-out device with an upper and a lower projection, which in each case delimit an intermediate element connecting the two projections, wherein through holes coaxial with one another are provided in the two projections and a driving screw with a press plunger is screwed into the upper projection at its end oriented towards the lower projection. This tool is intended to have good manual applicability, even for chains of different types, while at the same time having very small dimensions and being easy to transport, and in particular to enable machining of very narrowly constructed chain types. This is achieved by the fact that the handle body has, at the first end along the longitudinal axis, a guide device extending the handle body, in which guide device the press-out device is mounted so as to be movable along the longitudinal axis of the handle body between a first position in which the positioning element and the intermediate element of the press-out device form a chain space for positioning the chain link, and a second position in which the press-out device is spaced from the positioning element.