Hydraulic Pruning Attachment with Pivot Saw
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Solution Overview
Problem
Existing landscaping equipment is limited to single-purpose operations due to fixed cutting blades or arms that cannot be easily oriented or adapted for multiple tasks, requiring frequent attachment changes or blade reorientation.
Innovation Solution
A saw attachment with pivotally mounted circular saw blades on a swing arm, capable of horizontal, vertical, and angled orientations, driven by a belt or chain mechanism and hydraulic actuation, allowing for versatile cutting, trimming, and brush removal on various industrial machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cutting blades are fixed to a stationary or rotating arm, then the structure is simple and reliable, but the equipment can only perform single-purpose operations and requires frequent attachment changes
Solution Approach 1:
The cutting blade is mounted on a pivotally supported arm that can rotate between horizontal and vertical orientations, and the arm itself can be tilted upwardly from horizontal. This dynamic positioning system allows the same blade to perform multiple operations (hedging, trimming, brush removal) without changing attachments, resolving the contradiction between versatility and complexity.
Solution Approach 2:
The single cutting blade assembly is designed to perform multiple functions through orientation changes: it can hedge at ground level in horizontal position, trim upper portions when tilted upwardly, and remove brush when rotated to vertical position. This multi-functionality eliminates the need for multiple specialized attachments while adding manageable complexity.
2Adaptability or versatility
If the cutting blade arm is permanently mounted at a fixed height, then the structure is stable and simple, but the blade cannot reach ground level when tilted to vertical orientation
Solution Approach 1:
The arm supporting the cutting blade is designed with upward tilt capability from the horizontal position, allowing the blade to reach various heights including ground level when vertical. This dynamic adjustment resolves the contradiction between structural stability and operational accessibility.
3Adaptability or versatility
If multiple saw blades are mounted on separate bearing members, then each blade can be independently positioned, but the blades cannot be used concurrently and require separate control mechanisms
Solution Approach 1:
Instead of multiple independently controlled blades, the invention uses a single cutting blade on a pivotally supported arm that achieves versatility through orientation changes (horizontal for hedging, vertical for brush removal, tilted for trimming). This approach provides blade configuration flexibility while avoiding the complexity of multiple power units and control mechanisms.
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
Enables a single piece of equipment to perform multiple tasks such as topping, trimming, and brush removal on a range of vehicles by adjusting the saw blade orientation, enhancing operational flexibility and efficiency.
Implementation Method 1
an extension assembly slidably connects the support plate to the connector plate and has a hydraulic actuator operable to move the extension assembly laterally outward from the host vehicle
Implementation Method 2
driven by a belt or chain mechanism
Data Source
AI summary
A saw attachment for pruning trees, shrubs and undergrowth that can be used on a hydraulic vehicle, having auxiliary line connections for accepting attachments. The attachment has cutting blades located at the ends of a swing arm, which is mounted on a plate capable of holding a single, fixed angle of orientation from 0° to 90° with respect to the imaginary plane of the direction of travel of the vehicle. Depending on the type of host vehicle on which the attachment is used, the attachment can be mounted using either a connector plate or an articulated extension arm.