Covering Hem Recesses for Secure Tether Fastening
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Solution Overview
Problem
Existing covering bodies for yachts and freight are inconvenient to handle and secure, prone to being blown off by strong winds, and suffer material damage due to excessive stitching and concentrated force on the edges.
Innovation Solution
A covering body structure featuring a hem with recesses for threading a tether, which is connected to retaining ring fastening members and strengthening pieces, allowing for even force distribution and secure fastening via multiple ropes, preventing material damage and wind displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If woven tapes are directly joined to the edge of the covering body with excessive stitching, then the covering body can be securely fastened, but the covering body material is damaged and torn due to multiple needle piercings and concentrated force
Solution Approach 1:
The patent introduces a hem as an intermediary element between the covering body and the woven tape. The hem is a folded edge structure that distributes the stitching across a larger area and provides a stronger attachment point. The woven tape is joined to the hem rather than directly to the covering body edge, which prevents concentrated force and multiple needle piercings from damaging the covering body material while still achieving secure fastening.
2Device complexity
If the covering body is designed with simple elastic tape on circumferential edge, then the structure is simple, but the covering body is easily blown off by strong wind during transporting
Solution Approach 1:
The patent segments the circumferential edge into multiple sections with multiple hems distributed around the perimeter. Instead of a single continuous elastic tape, the design uses multiple discrete attachment points (hems) spaced around the covering body. This segmentation allows for better wind resistance by creating multiple secure anchor points while maintaining relatively simple construction of each individual hem element.
3Reliability
If the covering body is covered successively from bow to stern to complete securing, then the covering can be tightly bound, but the handling becomes extremely inconvenient
Solution Approach 1:
The patent incorporates hems and fastening members (such as grommets or reinforced eyelets) into the covering body structure during manufacturing, before use. These preliminary structural elements are pre-positioned at optimal locations around the circumferential edge, allowing users to quickly attach ropes or straps without needing to sequentially work from bow to stern. The preliminary preparation of these attachment points enables simultaneous or parallel fastening operations, greatly improving handling convenience while maintaining covering tightness.
Data Source
AI summary
A covering and securing structure for a covering body, which includes a covering that can be laid over an object, and a hem located on a circumferential edge of the covering enables a tether to be threaded therethrough. A plurality of recesses are defined in the hem, and each of the recesses enables the tether to be joined to externally located ropes. When the covering body is laid over the external portion of an object to be covered and bound tight, then the plurality of ropes on the circumferential edge of the covering body are joined to the tether and a tugging action is collectively applied to the ropes, thereby achieving covering and securing protective effectiveness.