Timber Carrier Height Adjustment via Threaded Rod Mechanism
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Solution Overview
Problem
Existing saw devices for splitting elongated timber elements have limitations in lowering timber carriers, making manual log loading laborious and risky, and thickness settings are not easily adjustable, leading to potential injuries and dimensional inaccuracies.
Innovation Solution
The saw device features upwardly and downwardly displaceable timber carriers connected to post elements via rotatable threaded rods, allowing for lower positioning and stepless height adjustments with electric stepping motors, facilitating easier log loading and precise cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the timber carrier is lowered to load new logs, then log loading becomes easier, but the standing timber carrier element's lower ends abut the ground or support, limiting further lowering
Solution Approach 1:
The support structure is divided into two independent parts: the ground support and the movable standing timber carrier element. By separating the support function from the carrier positioning function, the carrier can be lowered independently without being constrained by the ground support position, enabling greater lowering distance for easier log loading.
Solution Approach 2:
The solution introduces a vertical dimension of movement for the standing timber carrier element itself, rather than only moving the timber carrier horizontally or vertically relative to a fixed support. This additional degree of freedom allows the carrier to be lowered below the original support level.
2Manufacturing precision
If a clamp arrangement is used to achieve stepless thickness settings, then dimensional accuracy improves, but the arrangement must be really operation safe and powerful to prevent log falling
Solution Approach 1:
The threaded rod mechanism provides self-locking capability through its friction characteristics, automatically maintaining the timber carrier at the desired height without requiring additional active clamping forces. The system uses the load itself to maintain the positioning, eliminating the need for powerful external clamping arrangements.
Solution Approach 2:
The invention replaces complex mechanical clamp arrangements with a simpler threaded rod positioning system. This substitution reduces mechanical complexity while maintaining positioning accuracy, and the self-locking nature of the threaded connection inherently provides safety without requiring additional powerful clamping mechanisms.
3Device complexity
If sprint through holes is used to fix timber carrier position, then positioning is simple, but thickness settings can only be made in predetermined steps
Solution Approach 1:
The system transitions from a static positioning system with fixed holes to a dynamic system using a threaded rod that can be rotated to any position. This allows continuous adjustment of the timber carrier height, enabling stepless thickness settings while maintaining simple device architecture through the use of a single adjustable mechanism per carrier.
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
The solution enables timber carriers to be lowered closer to the ground, reducing manual labor and risk, and allows for precise, stepless height adjustments, improving log handling and dimensional accuracy of sawed timber.
Implementation Method 1
a rotatable, threaded rod which is rotatably beared in the post element, extends to its height extent and engages a threaded hole in a rear portion of the timber carrier
Data Source
AI summary
A saw device for split sawing of elongated timber elements has at least two upright post elements horizontally spaced from each other, each of which in a lower portion is adapted to support the saw device. An elongated, lying guide beam is supported in the upper portions of the post elements and is adapted to displaceably carry a saw assembly along the longitudinal extent of the guide beam. Each of at least two lying timber carriers projects perpendicular from and are displaceable in height along a respective post element. Each of the timber carriers is formed as a console beam which is upwards and downwards displaceable and unturnably connected with the respective post element, and is displaceable by a rotatable threaded rod which is rotatably beared in the post element, extends in its height and engages a threaded hole in the rear portion of the timber carrier.