Pneumatic Tool Driver Integral Debris Suction
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Solution Overview
Problem
Existing pneumatically operated percussive tool drivers face challenges in efficiently removing debris and dust without the need for an industrial vacuum, particularly in locations without access to electric power or where transporting a vacuum is cumbersome.
Innovation Solution
An integral debris suction apparatus powered by the tool driver's exhaust air pressure, utilizing a venturi element and air diverting apparatus to create suction and draw debris away from the tool tip, eliminating the need for an external vacuum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an industrial vacuum is attached to the tool driver housing to collect and remove debris, then debris removal effectiveness is improved, but device complexity and portability are worsened
Solution Approach 1:
The patent combines the debris suction function directly into the tool driver housing by integrating a suction fan, dust containment hood, and exhaust system into a single unified device. This merging eliminates the need for separate external vacuum equipment while maintaining effective debris collection capabilities.
Solution Approach 2:
The tool driver housing is designed to serve multiple functions: it acts as both the percussive tool driver and an integrated debris suction system. The housing incorporates the suction fan, dust containment hood, and exhaust ports, allowing the same device to perform both tool driving and debris removal operations simultaneously.
2Object-affected harmful factors
If an industrial vacuum is attached to the tool driver housing to collect and remove debris, then debris removal effectiveness is improved, but ease of operation is worsened
Solution Approach 1:
The patent combines the debris suction function directly into the tool driver housing by integrating a suction fan, dust containment hood, and exhaust system into a single unified device. This merging eliminates the need for separate external vacuum equipment while maintaining effective debris collection capabilities.
3Object-affected harmful factors
If pressurized exhaust air is diverted through the venturi element to create suction, then debris removal effectiveness is improved, but loss of energy is worsened
Solution Approach 1:
The patent converts the otherwise wasted pressurized exhaust air into a useful resource by channeling it through the venturi element to generate suction for debris removal. The exhaust air that would normally be released into the atmosphere is instead utilized to power the suction fan and create negative pressure for dust collection, transforming a harmful waste product into a beneficial driving force.
Solution Approach 2:
The patent employs pneumatic principles by using pressurized air flow through the venturi element to create suction. The exhaust air pressure differential drives the suction fan and generates the negative pressure needed for debris removal, utilizing pneumatic force instead of mechanical or electrical power sources.
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
Effectively removes dust and small debris from the workpiece impact area using the tool driver's exhaust air, reducing noise and eliminating the requirement for an industrial vacuum, while being portable and usable in settings without electric power.
Implementation Method 1
an air diverting apparatus that uses pressurized air to establish an airflow through the venturi element to create a suction upstream of the venturi element that draws debris from the dust gathering assembly
Data Source
AI summary
A pneumatically operated tool driver has a debris suction apparatus including a dust gathering assembly fastened to the front head of tool driver and surrounding the tool, a venturi element mounted on the tool driver, and an air diverting apparatus that uses pressurized air to establish an airflow through the venturi element to create a suction upstream of the venturi element that draws debris from the dust gathering assembly to a dust collection site. The air diverting apparatus obtains the pressurized air from an exhaust diverter that captures pressurized exhaust air expelled through the tool driver's exhaust port, and from a capillary tube coupled to the tool driver's inlet air port.