Cylindrical Sheet Dispenser with Deforming Projections
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Solution Overview
Problem
Conventional sheet product packaging is inefficient, leading to roll-back issues during cutting, difficulty in handling due to rectangular shape, and lack of visibility into remaining product quantity, with environmental concerns arising from disposable packaging.
Innovation Solution
A reusable sheet product dispenser with a housing featuring a longitudinal slit, upper and lower lips, a cutting edge, and deforming projections to prevent roll-back, made of flexible material for easy handling and refillability, with translucent end plugs for product quantity indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional paperboard packaging with serrated teeth is used, then cutting function is provided, but sheet product roll-back occurs and handling becomes difficult
Solution Approach 1:
The housing is formed from a curved plate with a circular cross-section, creating a cylindrical dispenser body that provides ergonomic handling comfort while maintaining structural integrity for reliable sheet product dispensing and cutting operations
2Reliability
If adhesive strips are added to hold sheet product, then roll-back is prevented, but foreign particles are attracted
Solution Approach 1:
The adhesive strips are completely removed from the design. Instead, the sheet product is held in place by the mechanical structure of the housing and the cutting edge geometry, eliminating the harmful effect of foreign particle attraction while maintaining sheet product stability
3Ease of manufacture
If opaque paperboard is used for packaging, then manufacturing is simple, but product quantity visibility is lost
Solution Approach 1:
The housing is made from a translucent material that allows light to pass through, enabling users to visually determine the amount of sheet product remaining in the dispenser without removing the product, while maintaining manufacturing simplicity through a single-material construction
4Device complexity
If disposable packaging is used, then device complexity is reduced, but environmental waste increases
Solution Approach 1:
The dispenser is designed as a reusable housing that can be refilled with multiple sheet product rolls. The housing is separable from the sheet product, allowing the durable housing to be retained and reused while only the consumable sheet product is discarded, reducing environmental waste
5Ease of manufacture
If rectangular box shape is used, then manufacturing is easy, but user comfort during dispensing deteriorates
Solution Approach 1:
The plate is curved to form a cylindrical housing with a circular cross-section, transforming the rectangular box shape into an ergonomic cylindrical form that is comfortable to hold and manipulate during dispensing operations while maintaining manufacturing simplicity through plate forming
Data Source
AI summary
A sheet product dispenser includes a housing to partially enclose a roll of sheet product, at least one end-opening at a longitudinal end of the housing to load said roll within the housing, and a longitudinal slit along a length of the housing to allow a leading edge of said sheet product to be unrolled therethrough defined by an upper and lower lip of the housing. The upper lip can flex to contact the lower lip to hold the sheet product in place during a cutting operation. The dispenser may further include a deforming projection disposed on a portion of the lower lip to deform the sheet product during a cutting operation to prevent roll-back of the sheet product.