Rigid Package Sliding Lid Mechanism
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Solution Overview
Problem
The manufacturing of existing rigid cigarette packages with hinged lids is laborious and complex due to the need for precise positioning of partially transparent and translucent panels, which limits productivity.
Innovation Solution
A rigid cigarette package design featuring a sliding inner container within a parallelepiped-shaped outer container with a cup-shaped lid, where the inner container slides linearly and is lifted automatically by a rotation mechanism, eliminating the need for complex panel positioning and allowing for simpler manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a partially transparent and partially translucent panel is used to create optical interaction with underlying print, then visual display effect is improved, but manufacturing complexity increases due to precise positioning requirements
Solution Approach 1:
The patent removes the partially transparent and partially translucent panel from the structure, eliminating the need for precise positioning between the panel and underlying print. The visual display effect is achieved through the sliding mechanism itself, which reveals or conceals the print on the front wall based on the inner container's position, rather than using optical properties of a separate panel.
Solution Approach 2:
Instead of using a transparent/translucent panel to create visual effects, the patent inverts the approach by using an opaque sliding mechanism where the print is directly visible or hidden based on the sliding position. The visual display is achieved through mechanical revelation rather than optical transmission.
2Manufacturing precision
If high positioning accuracy is required for panel alignment, then optical interaction quality is improved, but productivity decreases due to complex wrapping process
Solution Approach 1:
By removing the panel entirely, the patent eliminates the positioning accuracy requirement between panel and print. The sliding mechanism provides inherent alignment through its mechanical structure, allowing for faster, less precise manufacturing processes while maintaining the visual display function.
Solution Approach 2:
The sliding mechanism itself provides the alignment function that previously required separate panel positioning. The mechanical structure of the sliding container automatically ensures proper alignment between the front wall and outer container, eliminating the need for high-precision positioning operations.
3Ease of operation
If a sliding inner container mechanism is used, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into the sliding mechanism: it serves as both the container structure and the opening/closing mechanism. The inner container slides within the outer container to simultaneously achieve both protection and easy access, eliminating the need for separate hinged lids or complex opening mechanisms.
Solution Approach 2:
The sliding inner container performs multiple functions: it protects the contents, provides easy opening and closing through sliding motion, and creates the visual display effect by revealing or concealing the front wall print. This multi-functional design reduces overall device complexity compared to having separate components for each function.
Data Source
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AI summary
A rigid package (1) for tobacco articles with a hinged lid having: a group (2) of articles; an inner container (3) which houses the group of articles (2); an outer container (4), which houses the inner container (3) in a movable manner; a hinged lid (9); a collar (22) connected to the outer container (4); and a lifting mechanism (19), which moves the inner container (3) relative to the outer container (4) and to the collar (22) by using the rotation movement of the lid (9) between a lowered position and an extracted position; a front wall (16) of the inner container (3) has a graphic sign (27), which is covered by the collar (22) when the lid (9) is in the closed position, namely when the inner container (3) is in the lowered position, and is visible when the lid (9) is in the open position, namely when the inner container (3) is in the extracted position.