Hand-Held Wrapping Tool with Protective Rotary Grip Caps
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Solution Overview
Problem
Existing manual wrapping apparatuses face issues such as gloves getting caught in the wrapping process, loose wrap rolls, and increased maintenance costs due to wear of support rods, especially when operators wear gloves and perform repetitive bending during wrapping operations.
Innovation Solution
A manual wrapping apparatus with a support rod system featuring a fixed grip portion, first and second rotary grip portions, and protection caps to prevent glove entanglement and loose wrap rolls, allowing for easy tension control and reduced maintenance by replacing worn parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator holds the fixing grip portion with a gloved hand during wrapping operation, then the wrapping operation can be performed, but the glove may become rolled up and caught into the wrapping
Solution Approach 1:
A protective cover is introduced as an intermediary component between the gloved hand and the fixing grip portion. The cover allows the operator to grip the apparatus while preventing the glove from directly contacting the rotating grip portion, thus avoiding entanglement. The cover acts as a mediator that transmits the gripping force while blocking the harmful interaction between the glove and the wrapping mechanism.
2Reliability
If the support rod is made integral to prevent wrap roll loosening, then the wrap roll remains fixed, but the entire support rod must be replaced when worn, increasing maintenance costs
Solution Approach 1:
The support rod is divided into separate components: a main support rod body and a detachable protective cover. The protective cover can be removed and replaced independently when worn, while the main support rod remains intact. This segmentation allows for selective replacement of only the worn portion (protective cover) rather than the entire support rod, significantly reducing maintenance costs while maintaining reliable wrap roll fixation.
3Force
If the operator performs wrapping operation with both hands holding grip portions, then proper tension can be applied to the wrap, but the operator must bend and stretch the body repeatedly causing strain
Solution Approach 1:
The apparatus uses a rotary mechanism that creates a virtual copy of the gripping action. Instead of the operator directly applying tension with both hands while bending and stretching, the rotary grip portion replicates the gripping motion through rotation. This allows the operator to maintain a standing position while still applying proper tension to the wrap through the rotational movement of the grip portion.
Data Source
AI summary
A manual wrapping apparatus includes: a wrap roll including wrap which is wound around an outer surface of a paper tube; a support rod which has a fixed grip portion formed at one end and on which the wrap roll is mounted at the other end portion; a first rotary grip portion that is rotatably provided on one side of an outer surface of the support bar; a first support portion that is fixed and coupled to the one side of the outer surface of the support rod; a second support portion that is detachably coupled to the one side of the outer surface of the support rod corresponding to an outer end of the wrap roll and is supported by the outer end of the wrap roll; and a second rotary grip portion that is rotatably coupled to one side of the second support portion.