Curved Handle Riveting Tool with Nested Mandrel Collection
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Solution Overview
Problem
Conventional two-handled blind riveting tools with straight stationary and driving handles hinder perpendicular placement and often damage the spent mandrel collecting device, leading to misalignment and potential loss or damage of the collecting box.
Innovation Solution
A two-handled blind riveting tool with a spent mandrel collecting device featuring a curved stationary handle, a wedge-shaped guider, and a guiding tube allows snapped mandrels to safely drop into the stationary handle, preventing injury and facilitating recycling, while the curved design enables easier perpendicular placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If straight stationary and driving handles are used, then the structure is simple, but the operator cannot conveniently place the tool perpendicularly and may damage the collecting device
Solution Approach 1:
The patent applies curvature to the stationary handle and driving handle, transforming them from straight to curved configurations. This curvature enables the operator to conveniently place the tool perpendicularly to the workpiece while maintaining structural simplicity, thus resolving the contradiction between ease of operation and device complexity.
2Object-affected harmful factors
If a spent mandrel collecting device is mounted on the rear end of the housing, then operator safety is improved, but the gapping place is too small to accommodate the collecting device
Solution Approach 1:
The patent implements nesting by placing the spent mandrel collecting device inside the stationary handle. The collecting device is positioned within the hollow interior of the stationary handle, allowing the entire assembly to fit within the existing gapping place without requiring additional external space, thus resolving the contradiction between safety improvement and available area.
3Productivity
If the collecting box is frequently detached for disposal, then mandrel recycling is efficient, but the collecting box may be damaged or lost
Solution Approach 1:
The collecting box is nested within the stationary handle, which serves as a protective outer structure. This nesting arrangement protects the collecting box from damage during frequent detachment and reattachment operations, while still allowing easy access for mandrel disposal, thus resolving the contradiction between recycling efficiency and box integrity.
Solution Approach 2:
The patent designs the stationary handle with a pre-formed hollow interior that accommodates the collecting box. This preliminary structural preparation allows the collecting box to be easily attached and detached without requiring complex assembly or disassembly operations, maintaining both efficiency and integrity during frequent use.
Data Source
AI summary
A two-handled blind riveting tool with a spent mandrel collecting device has a rivet setting assembly and a driving handle and a spent mandrel collecting device being separately mounted on a housing of the rivet setting assembly. A stationary handle of the spent mandrel collecting device has an elongated hole, a guider of the spent mandrel collecting device is mounted between the housing and the stationary handle, and a guiding tube of the spent mandrel collecting device is mounted in the housing. Snapped mandrels slide along the guiding tube and the guider and then drop into the stationary handle. Therefore, the snapped mandrels do not hurt an operator for improved safety and are recycled to keep working areas clean.