Open-Bottom Sand Castle Mold for Flip-Free Structure Release
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Solution Overview
Problem
Conventional sand castle building equipment, such as closed molds, are limited by the need to flip them over to release the sand, which can crack or break the molded sand, and require specific sand composition and moisture ratios, making it difficult for children to handle larger molds.
Innovation Solution
A monolithic, hollow structure with a vertical axis and a continuous sidewall featuring a castle-like inner pattern, an open top, and a handle for vertical lifting, allowing freestanding sand castle construction without flipping, and accommodating various sand types and moisture levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If closed molds are used to build sand castles, then the sand structure can be formed with defined patterns, but the mold must be flipped over to release the sand which can crack or break the molded sand
Solution Approach 1:
The mold design inverts the traditional closed-mold approach by providing an open bottom instead of a closed bottom. This allows the sand castle to be released by simply lifting the mold vertically upward, eliminating the need to flip the mold over. The inversion of the mold structure (open bottom vs closed bottom) directly resolves the contradiction by maintaining pattern definition through the sidewall while preventing sand structure damage during release.
2Volume of moving object
If larger closed molds are used to create bigger sand castles, then the size of the sand structure increases, but the mold becomes too heavy for children to flip
Solution Approach 1:
The open-bottom mold design inverts the release mechanism from flipping to vertical lifting. This allows children to easily operate larger molds by simply pulling upward on the handle, without needing to flip the heavy mold over. The volume of the sand castle can be increased while maintaining ease of operation through this inverted release approach.
3Strength
If closed molds with closed bottoms are used, then the mold structure is simple and strong, but the sand must have specific composition and moisture ratio to prevent sticking or falling out
Solution Approach 1:
The open-bottom mold design inverts the release problem from suction (closed bottom) to gravity-assisted release. This eliminates the need for specific sand composition requirements, allowing children to use various sand types including wet sand, dry sand, or sand with stray matter. The mold structure remains strong while gaining versatility in sand composition acceptance.
Data Source
AI summary
Equipment for building sand castles can include a body having a single, monolithic, hollow structure with a vertical axis and a sidewall that is continuous and uninterrupted in a rotational direction about the vertical axis. The sidewall can include an inner pattern that is castle-like in appearance. The inner pattern can form an outer pattern in sand located inside the body. The body also has an open bottom, an open top that is completely unobstructed and has no inward protrusion, and a top radial dimension at the open top is smaller than a bottom radial dimension at the open bottom such that the body is tapered. A handle extends from the body adjacent the open top. The handle can be used to vertically lift the body from the sand located inside the body to form a freestanding sand castle without support from the body.