Backpack Angled Fastener Hinged Cover Access
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Solution Overview
Problem
Existing backpack designs often have limited access openings, making it difficult to insert or remove large or bulky items due to a single, straight-line fastener across the top.
Innovation Solution
A backpack design featuring a releasable fastener that extends partially across the front and side surfaces at a non-perpendicular angle, with a hinge line allowing the cover to pivot open, providing a larger access mouth and easier access to the inner cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single straight-line fastener is used across the top of the backpack, then the fastener structure is simple and easy to manufacture, but the access opening size is limited making it difficult to insert or remove large items
Solution Approach 1:
The fastener is segmented into multiple sections: a first section extending from the front surface toward the back surface, and a second section extending from the first section to the outer perimeter of the side surface. This segmentation allows each section to be optimized independently, enabling the fastener to create a larger access opening while maintaining structural integrity and ease of manufacture.
2Area of stationary object
If the fastener extends across the front and side surfaces at a non-perpendicular angle, then the access opening size increases allowing easier insertion of large items, but the fastener path becomes more complex
Solution Approach 1:
The fastener transitions from a simple linear path to a multi-dimensional configuration by extending across the front surface, continuing onto the side surface at a non-perpendicular angle, and terminating at the outer perimeter. This dimensional expansion of the fastener path creates a larger access opening while the angled configuration optimizes the opening geometry.
3Ease of operation
If a hinged cover design is implemented, then access to the inner cavity is improved, but the risk of the fastener binding or getting stuck increases
Solution Approach 1:
The fastener incorporates different section configurations optimized for their specific functions: the first section provides structural support from the front surface, while the second section at a non-perpendicular angle optimizes the hinge movement and access opening. This local optimization reduces binding risk while maintaining ease of operation.
Data Source
AI summary
A backpack including a body having a back surface configured to be positioned adjacent to a back of a wearer when the backpack is worn. The body further includes a front surface at least partially spaced away from the back surface to define an inner cavity therebetween. The body has a pair of opposed side surfaces, each side surface extending between the back surface and the front surface. The backpack includes at least one shoulder strap coupled to the body and positionable over a shoulder of a wearer and a releasable fastener that is openable to provide access to the inner cavity or closable to block access to the inner cavity. The fastener extends at least partially across the front surface and both side surfaces. At least part of the releasable fastener on the side surfaces, at a position away from an outer perimeter of each side surface, extends at a non-perpendicular angle relative to the back surface. The body includes a hinge line about which the body is predetermined to bend, and the backpack is configured such that when the releasable fastener is opened the backpack includes a cover at least partially defined by the releasable fastener which is hingedly movable about the hinge line.