Chain assurance and method of chain assurance
By stitching together hollow circular braided rope and yarn to form multiple chain links, the problem of low tensile strength and poor hand feel of existing safety chains is solved, realizing a safety chain with adjustable tensile strength and interchangeable appearance, thus improving safety and aesthetics.
CN117599395BActive Publication Date: 2026-05-29DONGGUAN POLYUNION TEXTILE TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGGUAN POLYUNION TEXTILE TECH CO LTD
- Filing Date
- 2023-12-19
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing safety chains have rough, hard surfaces, low and non-adjustable tensile strength, poor feel, limited color options, and are difficult to detect when damaged.
Method used
It uses a combination of hollow circular braided rope and yarn to form multiple chain links through sewing. The yarn is threaded and sewn using a power wheel and a sewing machine. Nylon thread is used for sewing to ensure that the tension of the chain links is adjustable. The appearance and safety can be improved by changing the circular braided rope in different colors.
Benefits of technology
It improves the adjustability and aesthetics of the chain tension, ensures safety, and uses visual wear indicators to suggest replacement, preventing potential safety hazards.
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Smart Images
Figure CN117599395B_ABST
Abstract
The application discloses a method for preparing a security chain. The method comprises the following steps: taking a first hollow round rope, and threading a yarn through the first hollow round rope; sewing the openings at the two ends of the first hollow round rope to form a first link; taking an nth hollow round rope, threading the nth hollow round rope through an (n-1)th link, and threading the yarn through the nth hollow round rope; wherein n is a natural number greater than 1; sewing the openings at the two ends of the nth hollow round rope to form an nth link, thereby forming a security chain with n links. In this way, the tensile strength of the security chain can be improved.
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