Brush Cutter Carrying Device With Lockable Sliding Leg Plate
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Solution Overview
Problem
Existing carrying devices for hand-held working tools like brush cutters are uncomfortable due to the leg plate's position changing during use, especially when vertical movements are required, and do not adapt to individual user preferences in working techniques.
Innovation Solution
A carrying device with a fixation device between the carrying strap and leg plate, allowing for a locking and release position to accommodate different working modes, and a belt buckle that adjusts easily without removing the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the leg plate is allowed to move along the carrying strap, then the user can adapt to different working techniques and applications, but the leg plate position changes during use causing discomfort
Solution Approach 1:
The fixing device is designed with two distinct operational states: a release position where the leg plate can move along the carrying strap to accommodate different working techniques, and a locking position where the leg plate is immovably secured to provide stability and comfort during operation. This dynamic design allows the system to switch between mobility and fixation based on operational requirements.
2Ease of operation
If the leg plate is fixed immovably to the carrying strap, then the user experiences comfort and stability during operation, but the carrying device cannot adapt to different working techniques
Solution Approach 1:
The fixing device enables dynamic adjustment between a locked state for stability and a released state for adaptability. The mechanism allows users to switch between these states based on their specific working technique requirements, providing both comfort during operation and versatility across different applications.
Solution Approach 2:
The fixing device changes the positional parameter of the leg plate along the carrying strap. By adjusting the fixing device between locked and released states, the leg plate's position is either fixed or variable, allowing adaptation to different working techniques while maintaining operational comfort when locked.
3Stability of the object's composition
If a fixing device is added to secure the leg plate, then the leg plate position is stabilized, but the device complexity increases
Solution Approach 1:
The fixing device is implemented as a separate, modular component that can be independently attached to the carrying strap and leg plate. This extraction approach allows the stabilization function to be added without fundamentally redesigning the entire carrying device structure, minimizing the increase in overall complexity.
Solution Approach 2:
The fixing device acts as an intermediary element between the carrying strap and the leg plate. It provides the stabilization function by mediating the connection between these two components, allowing the leg plate to be securely fixed without requiring direct integration into the main carrying device structure.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The invention relates to a carrying device for a user (99) to carry a hand-held work tool (10), in particular a brush cutter or the like. The carrying device comprises at least one shoulder strap (3, 4) for resting the carrying device (1) on the shoulder of a user (99) and has a lateral leg plate (30) with a coupling unit (32) for attaching the work tool (10). The leg plate (30) is held on the carrying device (1) by a carrying strap (11), the carrying strap (11) being operatively connected at one end (15) to the shoulder strap (3, 4). The leg plate (30) is slidable along the carrying strap (11). According to the invention, a fixing device (50) is functionally arranged between the carrying strap (11) and the leg plate (30), which has a release position (100) and a locking position (200).In the release position (100), the leg plate (30) is movable along the carrying strap (11), while in the locking position (200), the leg plate is fixed immovably to the carrying strap (11). The locking position corresponds to a first working mode (I) of the work device (10), and the release position (100) to a second working mode (II) of the work device (10).