Quick-Change Air Tool Adapter for Chisel and Needle Scaler Swaps
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Solution Overview
Problem
The transition between chisel and needle scaler accessories for air tools is time-intensive and inefficient, leading to increased costs due to the need for semi-permanent fasteners like screws.
Innovation Solution
A universal coupler comprising a sleeve member, an adapter member, a spacer member, and an anvil member, along with a spring and O-ring, allows for quick and tool-free exchange of accessories by engaging with the quick-connect coupler of a conventional air hammer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semi-permanent fasteners like screws are used to attach accessories to air tools, then the connection strength and reliability are improved, but the time required for accessory exchange increases and operational efficiency decreases
Solution Approach 1:
The accessory attachment system is divided into separate modular components: a receiver on the air tool, a coupler with collar and stem, and the accessory itself. This segmentation allows the accessory to be quickly detached and reattached without removing fasteners, resolving the contradiction between connection reliability and exchange speed.
Solution Approach 2:
The coupler incorporates a spring-loaded collar that dynamically adjusts during attachment and detachment. The collar springs allow the stem to be inserted and locked quickly, providing reliable connection when engaged while enabling rapid exchange when needed, thus balancing connection strength with exchange time.
2Stability of the object's composition
If semi-permanent fasteners like screws are used to attach accessories, then the connection stability is improved, but the complexity of the attachment mechanism and need for additional tools increases
Solution Approach 1:
The screw fastening mechanism is extracted and replaced with a simplified coupler system consisting of a collar, stem, and spring. This removes the need for screws and screwdrivers, reducing tool requirements and mechanism complexity while maintaining connection stability through the spring-loaded locking action.
Solution Approach 2:
The spring-loaded collar automatically engages with the stem to secure the accessory without requiring additional fasteners or tools. The self-servicing mechanism provides stable connection through its inherent spring pressure and geometric locking, eliminating the need for complex screw assemblies.
3Adaptability or versatility
If a universal coupler design is implemented to accommodate multiple accessory types, then the versatility and adaptability are improved, but the device complexity and number of components increase
Solution Approach 1:
The coupler is designed with a universal interface that can accommodate multiple accessory types including chisels, needle scalers, and other pneumatic tool attachments. The standardized collar and stem dimensions allow different accessories to be attached to the same receiver, providing versatility without requiring multiple specialized coupling mechanisms.
Data Source
AI summary
A universal adapter to facilitate the easy and efficient of exchange of needle scaler and chisel accessories associated with an air tool receiver/coupler, the adapter including a sleeve with a spring and a spacer, an adapter carrying an O-ring, and an anvil member in contact with the base of a plurality of needles is disclosed herein.