Work Support Venting Structure Without Table Air Passages
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Solution Overview
Problem
Existing work supports have a complex structure due to the need for a supply and discharge passage and ventilation passage, resulting in increased size and complexity.
Innovation Solution
The work support design includes a discharge passage with an annular space and a discharge port, eliminating the need for a ventilation hole and passage in the table, thereby simplifying the structure and reducing size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a supply and discharge passage and ventilation passage are provided in the table, then the work support can function properly, but the structure becomes complicated and the size increases
Solution Approach 1:
The patent combines the supply passage and discharge passage into a single integrated passage structure. The passage extends from the table through the housing, allowing compressed air to be supplied and discharged through a unified pathway rather than requiring separate supply and discharge passages in the table, thereby simplifying the overall structure while maintaining proper functionality
Solution Approach 2:
The passage serves multiple functions: it acts as both a supply passage for compressed air and a discharge passage for exhaust air. The single passage structure performs both supply and discharge functions, eliminating the need for separate dedicated passages in the table and reducing structural complexity
2Reliability
If a ventilation passage is provided in the lower wall of the housing, then ventilation is enabled, but the housing size increases in the radial direction
Solution Approach 1:
The ventilation function is merged with the existing passage structure. The passage that supplies compressed air also serves as the ventilation and discharge pathway. By integrating ventilation into the single passage rather than adding a separate ventilation passage in the lower wall, the housing radial size is kept compact while ventilation functionality is maintained
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
This design achieves a compact, mechanically simple work support that does not require ventilation holes or passages in the table, enhancing usability and reducing size constraints.
Implementation Method 1
A first piston is moved downward in the housing by compressed air supplied to an actuation chamber, and the first piston locks the support rod via the collet
Implementation Method 2
A spring biases the support rod and the flange portion so that they recede from each other
Implementation Method 3
When the second piston is raised, compressed air in the outlet chamber is supplied to an accommodation chamber provided below the support rod
Data Source
AI summary
A discharge passage (42) of a work support includes: an annular space (2a) created between an insertion hole (2), provided through a leading end portion of a housing (1), and a support rod (3); and a discharge port (42a) provided at the leading end portion of the housing (1). The work support is designed so that an amount of gas pushed out of an outlet chamber (32) by an output member (24) when the output member (24) moves from its base-end-side limit position to its leading-end-side limit position is larger than a capacity of an accommodation chamber (45) created on a base end side relative to the support rod (3) due to movement of the support rod (3) from its base-end-side limit position to a leading-end-side position.