Plaster Dispenser Front Access to Prevent Pack Contamination
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Solution Overview
Problem
Existing plaster dispensers require a separate key for replacing empty packs, which can be lost, and the design allows contamination when trying to prevent blood from dripping into the dispenser, especially when mounted upside down.
Innovation Solution
A plaster dispenser with a box-shaped space that allows individual access to plasters from a pack with a folded sheet, featuring parallel vertical walls and a horizontal shoulder for pack support, eliminating the need for a special key and preventing contamination by allowing the pack to be accessed from the front.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cover is weighted downwards when the dispenser is inverted, then access to plasters is enabled, but the seal is compromised
Solution Approach 1:
The patent changes the orientation of the seal from horizontal to vertical. Instead of sealing the pack opening horizontally (which would require the dispenser to be mounted upright), the flange-groove seal is designed to function vertically when the dispenser is mounted upside down. The flange extends horizontally from the pack, engaging with the vertical groove in the dispenser, creating a seal that works in the inverted orientation.
Solution Approach 2:
The patent incorporates a preliminary sealing action through the flange-groove engagement that occurs before the pack is accessed. The flange on the pack engages with the groove in the dispenser during installation, creating a pre-established seal that remains effective throughout use. This preliminary sealing action ensures that the pack remains protected from contamination even when the dispenser is mounted upside down and the pack is later removed for access.
Data Source
AI summary
A plaster dispenser (1) for removing plasters (3) individually from a plaster pack (2) that includes a number of plasters (3), each inserted in a plastic or paper pocket, wherein the pockets are directed in mutually the same direction, and are together surrounded by a folded plastic or paper sheet (4a, 4b) whose first edge (5) extends at right angles to the longitudinal direction of respective plaster accommodating pockets, the plaster pack (2) being widened from the first edge (5) in a direction towards two mutually opposing second edges (19a, 19b) of the sheet parts, and wherein the dispenser (1) including a box-shaped space (6).