Self-Penetrating Tree Tap Blade Deforms Fibers
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Solution Overview
Problem
Conventional tree tapping methods cause significant injury to trees, leading to prolonged healing times and eventual reduction in sap flow, as they require drilling and leave permanent holes that can facilitate disease and insect damage.
Innovation Solution
A self-penetrating tree tap with a blade that spreads and deforms tree fibers for insertion, eliminating the need for pre-drilling and minimizing tissue removal, along with a dispenser and anvil configuration that allows for sap collection without creating a permanent aperture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional tap is inserted by drilling a hole in the tree, then sap can be collected, but the hole remains open after tap removal causing tree injury and facilitating disease
Solution Approach 1:
The device is divided into a blade portion that remains in the tree and a dispenser portion that is removed. The blade creates a controlled aperture that closes after dispenser removal, segmenting the function between a permanent insertion element and a temporary collection element.
Solution Approach 2:
The blade acts as an intermediary structure that facilitates sap collection while minimizing permanent damage. It creates a controlled aperture that allows sap flow during collection but closes afterward, mediating between the need for access and the need to protect tree integrity.
2Reliability
If drilling is used to insert the tap, then the tap can be securely positioned, but the drilling process causes significant tissue removal and damage
Solution Approach 1:
The conventional drilling mechanism is replaced with a self-penetrating blade that uses impact force and wedge geometry to split and deform fibers rather than remove material. This substitutes a material-removal process with a material-deformation process.
Solution Approach 2:
The insertion method changes from rotational drilling to linear impacting. The blade's tapered geometry and the impact direction change the physical parameters of insertion, allowing penetration through fiber deformation rather than material removal.
3Productivity
If the same tree is tapped repeatedly over many seasons, then productivity is maintained, but the tree's ability to transport sap becomes impeded and the tree may die
Solution Approach 1:
The dispenser portion is discarded after use while the blade portion remains in the tree for future use. This allows the collection mechanism to be replaced annually while the insertion structure persists, enabling multi-season productivity without cumulative damage from repeated insertions.
Solution Approach 2:
The blade creates a controlled aperture and deformation pattern in advance that facilitates easy dispenser insertion and ensures proper positioning before sap collection begins. This preliminary structuring prevents damage during the collection process itself.
4Productivity
If an auxiliary blade is used for removal, then the main blade can remain inserted for future use, but the device complexity increases
Solution Approach 1:
The device is segmented into a permanent blade component and a temporary dispenser component. The auxiliary blade is a simple removal tool that targets only the dispenser portion, allowing clean separation without complex mechanisms in the main insertion device.
Solution Approach 2:
The auxiliary blade extracts only the dispenser portion from the tree, leaving the main blade intact. This selective extraction simplifies the design by separating the removal function into a simple tool rather than integrating complex removal mechanisms into the main device.
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
This approach reduces tree injury, extends the tree's useful life for sap collection, and allows for multiple taps without compromising the tree's health, increasing productivity and reducing the risk of disease and insect infestation.
Implementation Method 1
impacting the impact receiving surface towards the blade to drive the blade in to the tree
Implementation Method 2
the blade penetrates the tree by spreading and deforming tree fibers
Data Source
AI summary
A method of inserting a tree tap into a tree, the tree tap including a blade in which a passageway is defined. The method includes abutting a distal end of the blade against an outer surface of the tree, followed by impacting the tree tap to drive the blade in to the tree. Afterwards, a cavity is drilled in the tree adjacent the blade distal end through the passageway. Also, a tree tap usable to perform the method.