Rotating Tool Holder for Chainsaw Protection and Access
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Solution Overview
Problem
Existing holders for chainsaws on forestry winches provide insufficient protection and hinder easy access during transportation and use, with known solutions either damaging the chainsaw or making it difficult to pull out.
Innovation Solution
A holder design featuring a rotating mechanism with a convex second plate and a fulcrum, allowing the holder to adjust between 45° and 115°, preferably 90°, for secure transport and easy tool access, mounted on the winch frame rather than the safety net, with a locking mechanism for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holder is mounted at an angle on the inner side of the protective net, then the chainsaw can be stored, but the chainsaw is insufficiently protected and may fall out during transportation
Solution Approach 1:
The holder is designed to rotate between a transport position (angled 45-115° relative to the winch axis) where the chainsaw is protected and enclosed within the protective net, and a working position where the holder becomes substantially horizontal for easy chainsaw removal. The rotation mechanism around fulcrum allows dynamic repositioning between these two states, resolving the contradiction between protection and accessibility.
2Reliability
If the holder is installed parallelly to the ground, then the chainsaw protection is improved and falling out is prevented, but the chainsaw is difficult to pull out from the holder
Solution Approach 1:
The holder rotates from a horizontal working position (parallel to ground) where chainsaw removal is difficult, to an angled transport position (45-115°) where the chainsaw is securely protected. The rotation around fulcrum transforms the static horizontal mounting into a dynamic system that achieves both protection during transport and accessibility during operation by changing the holder's orientation.
Solution Approach 2:
The solution moves from a single fixed horizontal position to a two-dimensional rotation arc, allowing the holder to occupy different angular positions. This dimensional change enables the holder to achieve optimal protection angle during transport while maintaining easy accessibility when positioned horizontally for loading/unloading.
3Device complexity
If the holder is fixed in a single position, then the structure is simple, but the holder cannot provide both protection during transport and easy access during use
Solution Approach 1:
The holder incorporates a rotation mechanism with fulcrum that allows it to dynamically change position between transport and working orientations. This dynamic capability adds versatility - the same simple structure can serve dual purposes: protected storage during transport and easy access during operation - without significantly increasing structural complexity.
Data Source
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AI summary
The invention belongs to the field of constructional details in forestry winches or other machines, which require a space for storing tools. The present invention relates to an improved holder (12) for tools, preferably a chainsaw (3), and a working machine, in particular a winch, with the said holder. The holder comprises: - a first plate (12a), which is arranged to be mounted on the working machine in a fixed manner, - a second plate (12b), which is in its central part (12b'') convex and arranged to be in contact with the first plate (12a), - a third plate (12c) and a fourth plate (12d), which is mounted on the second plate (12b) so that a space is created between the third and fourth plate, said space being arranged to receive a leaf of the chainsaw or a part of any other tool, - a fulcrum (12e) connecting the first plate (12a) and the convex part (12b'') of the second plate so that the second plate (12b) and all other plates (12c, 12d) attached to it can rotate around the fulcrum, and - a suitable locking mechanism (12f) for locking rotation of the holder. Rotation around the fulcrum allows that the holder has a transport position and a position for pulling out the tool, wherein the angle between both positions is between 45° and 115°, optimally around 90°.