Thermal Weed Control Harness for Unrestricted Lance Sweeping
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Solution Overview
Problem
Existing harness systems for thermal weeding systems restrict user movement and area coverage due to design limitations, such as reduced lateral movement and increased pelvic movement requirements, making them unsatisfactory for efficient operation.
Innovation Solution
A harness system with a bottle holder, waist belt, and adjustable bracket with a hanger mechanism that allows for upright attachment of the thermal lance, providing enhanced freedom of movement and weight distribution, enabling 180-degree sweeping and comfortable use by both right- and left-handed individuals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an elephant trunk arm is used to support the thermal lance from the back of the harness, then the user's effort is reduced, but lateral movement quality deteriorates and ground work becomes impossible
Solution Approach 1:
The invention removes the restrictive elephant trunk arm from the harness design and extracts only the essential support functions. The thermal lance is suspended using a combination of shoulder straps and waist belt that provides support without constraining lateral movement or ground work capability.
Solution Approach 2:
Instead of supporting the thermal lance from the back with an arm structure that restricts movement, the invention inverts the approach by suspending the lance from the front using shoulder straps and waist belt, allowing natural body movement while maintaining support.
2Ease of operation
If a harness design requiring pelvic movement is used for brush cutters or rotary trimmers, then the tool can be operated, but the ability to cover a large area per sweep is reduced
Solution Approach 1:
The invention removes the pelvic movement requirement from the harness design by eliminating restrictive structural elements. The simplified suspension system using shoulder straps and waist belt allows full pelvic freedom while maintaining tool support, enabling larger sweeping motions for increased productivity.
3Stability of the object's composition
If a rigid back plate structure is used in the harness, then structural stability is improved, but user comfort and freedom of movement are reduced
Solution Approach 1:
The invention segments the harness into flexible components (shoulder straps, waist belt) rather than using a single rigid back plate structure. This segmentation allows each component to independently adapt to body movement while collectively providing structural support and stability.
Solution Approach 2:
The invention replaces static rigid structures with dynamic flexible elements that can adapt their configuration during movement. The shoulder straps and waist belt dynamically adjust to body position changes, maintaining support while enabling full range of motion.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a harness (3) for a user (2) of a thermal weed control system including a gas cylinder (6) and a thermal lance (7) supplied by this cylinder, the harness comprising at least: - a support (11) for the cylinder; - a strap (22); - a belt (21); and, - at least on the strap, attachment means (31, 32) for a bracket (4) enabling the lance to be supported using a suspension element (5).