Peelable Container Thick Ribs Dispensing Path
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Solution Overview
Problem
Conventional laminated peelable containers formed by blow molding often experience uneven volume reduction and deformation of the containing chamber, leading to a narrowed or blocked dispensing path and incomplete dispensing of content liquid, due to the inner surface portions coming into contact, which is exacerbated by the need for additional components and increased manufacturing costs when using adhesive strips.
Innovation Solution
The container features at least two thick ribs integrated along the axis of the trunk to increase the thickness of the containing chamber, preventing uneven peeling and deformation, thus maintaining an efficient dispensing path without the need for adhesive strips, by extending from the bottom to the upper end of the trunk and being symmetrically arranged about the axial center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the containing chamber is configured to be fully peelable from the inner surface of the trunk, then the inner layer body can be completely separated from the outer layer body, but the inner surface portions come into close contact with each other during volume reduction, narrowing or blocking the dispensing path
Solution Approach 1:
The patent applies local quality by providing thick ribs at specific locations (axial positions) along the containing chamber while leaving other portions thin and peelable. This creates localized structural reinforcement that prevents inner surface contact at critical dispensing zones while maintaining overall peelability of the containing chamber for volume reduction functionality.
2Manufacturing precision
If adhesive strips are added to regulate volume reduction and deformation, then the containing chamber can be prevented from uneven peeling, but the number of components and assembly complexity increases
Solution Approach 1:
The patent merges the adhesive function into the containing chamber structure itself by integrating thick ribs that provide both structural support and adhesive bonding capability. This eliminates the need for separate adhesive strip components while achieving the same regulatory effect on volume reduction and deformation.
Solution Approach 2:
The containing chamber structure serves dual functions: it provides the peelable membrane for volume reduction and simultaneously includes thick ribs that regulate deformation during dispensing. The structure self-regulates its own deformation behavior without requiring external adhesive components.
3Manufacturing precision
If adhesive strips are incorporated between the outer preform and inner preform, then volume reduction can be regulated, but the manufacturing cost increases
Solution Approach 1:
The patent extracts the adhesive function from separate components and integrates it directly into the containing chamber structure through thick ribs. This eliminates the need for additional adhesive materials and reduces assembly steps, thereby lowering manufacturing costs while maintaining precision in volume reduction control.
Data Source
AI summary
A synthetic resin-made laminated peelable container, formed by blow molding a preform assembly in which an inner preform is assembled into an outer preform, includes: an outer layer body including a tubular-shaped outer mouth and a closed-bottom tubular-shaped trunk contiguous from the outer mouth; an inner layer body including a tubular-shaped inner mouth arranged on inner side of the outer mouth and a containing chamber laminated on inner surface of the trunk in peelable manner for volume reduction and deformation; and an ambient air inlet configured to introduce ambient air between the outer and inner layer bodies. The containing chamber is integrally provided with at least two thick ribs extending along axis line of the trunk to increase thickness of the containing chamber compared with remaining portions.