Quick Coupler Adapter with Symmetrical Clamping for 180° Rotation
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Solution Overview
Problem
Existing quick-change devices for earthmoving machines are limited in their ability to rotate the working device by 180° relative to the quick coupler, restricting the adapter's application and requiring fundamental changes to the locking and coupling principle.
Innovation Solution
The adapter design features distinct clamping surfaces and bolt axes on both sides, with a depression or elevation on the bolt axis to accommodate multi-axial clamping, allowing coupling in both 180° positions without altering the quick-change principle, and includes centering means to ensure precise alignment and prevent jamming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the adapter has distinct clamping surfaces and locking mechanisms on only one side, then the locking and coupling principle remains simple, but the working device cannot be rotated by 180° relative to the quick coupler
Solution Approach 1:
The adapter is divided into two symmetrical sides, each equipped with identical clamping surfaces and locking mechanisms. This segmentation allows the working device to be coupled in either orientation (0° or 180° rotation) while maintaining the simplicity of the locking principle on each side
Solution Approach 2:
The patent applies symmetry rather than asymmetry - both sides of the adapter are made identical with corresponding clamping surfaces and locking mechanisms. This symmetrical design enables the 180° rotation capability while keeping each side's structure simple and familiar
2Stability of the object's composition
If the first clamping surface runs perpendicular to the base surface of the adapter, then the locking mechanism is simple, but the multi-axial clamping and stability are reduced
Solution Approach 1:
The clamping surfaces are configured at angles relative to the base surface rather than perpendicular, creating multi-axial clamping forces. This angular configuration adds dimensional complexity to the clamping action, distributing forces across multiple axes to enhance stability while maintaining reasonable structural simplicity
Data Source
Figure 1
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AI summary
The adaptor (18) for a tool head to an earth working vehicle boom has a quick change attachment (16) having claws (20) which selectively engage the flats of a locking pin of one end of the adaptor. The opposite end of the quick change attachment from the claws has a lug (30) to engage flats on the opposite adaptor locking pin. The quick change attachment can be mounted on either side of the adaptor using the respective flats. There can be locking pins (38,40) on either side of the adaptor, with respective flats.