Collared Wrap Dispenser Rotating Member Holding Mechanism
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Solution Overview
Problem
Existing wrap dispensers lack a safe and efficient method for dispensing rolls of film or other materials while allowing the operator to hold the dispenser, leading to potential safety hazards and inefficiencies during use.
Innovation Solution
A wrap dispenser design featuring a rotating member and a holding member that are joined in a rotatable fashion, allowing the rotating member to freely rotate while the user holds the holding member, with a cap attached to secure the holding member in place and facilitate easy dispensing of the wrap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual wrap dispensing is done without a holding member, then the dispenser structure is simple, but the operator cannot safely hold the dispenser while dispensing
Solution Approach 1:
The dispenser is divided into distinct functional components: a rotating member for the wrap roll, a holding member with collar for operator grip and structural support, and a cap for securing. This segmentation allows each part to perform its specific function while maintaining overall simplicity.
Solution Approach 2:
The holding member encloses the rotating member, and the cap encloses both components. This nested arrangement provides structural integrity and safety for holding while dispensing, without requiring a complex external framework.
2Ease of operation
If the rotating member is freely rotatable without a cap, then the dispensing operation is simple, but the holding member becomes loose and unsafe
Solution Approach 1:
The cap is pre-formed with an insertion portion that fits into the rotating member and a stop surface that engages the collar. This preliminary design allows the components to self-secure when assembled, providing stable holding without complex fastening mechanisms.
Solution Approach 2:
The collar acts as an intermediary element between the rotating member and the cap, providing a stop surface that prevents over-rotation and secures the assembly. This intermediary component enables secure holding while maintaining rotational freedom for dispensing.
3Ease of operation
If the holding member encloses the rotating member tightly, then the structure is stable, but the rotating member cannot rotate freely
Solution Approach 1:
The holding member is designed with a collar that allows dynamic adjustment: it provides initial structural stability when components are assembled, then allows free rotation during operation. The cap secures the components while permitting rotational movement, achieving both stability and freedom of motion.
Solution Approach 2:
Different portions of the holding member have different functional properties: the collar provides structural support and positioning, while the main body allows rotational freedom. The cap provides localized securing at the end, enabling free rotation in the critical area while maintaining overall structural integrity.
Data Source
AI summary
A dispenser includes a rotating member including a first end and a second end, the rotating member having an inner surface and defining an axis of rotation that extends from the first end to the second end; a holding member having an inner surface, an outer holding surface, and a collar at a first end of the holding member, the inner surface enclosing an engaging portion of the rotating member; and a cap attached to the first end of the rotating member and holding the holding member, the collar of the holding member positioned at least partially directly between an end surface at the first end of the rotating member and a stop surface of the cap.