Toothed belt
The toothed belt design with a cross-linked rubber composition and a woven fabric with controlled yarn ratios and densities addresses the issue of dust abrasion and wear, ensuring improved durability and resistance in high-load, dusty conditions.
WO2025204527A1 Publication Date: 2025-10-02BANDO CHEM IND LTD
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Patent Information
- Application Number
- PCT/JP2025/007470
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-03-29
- Filing Date
- 2025-03-03
- Publication Date
- 2025-10-02
AI Technical Summary
Technical Problem
Toothed belts in vehicles and industrial machinery face increased load due to electrification, and exposure to dust leads to wear and tear, particularly affecting the reinforcing fabric, which may not withstand high loads and dust abrasion effectively.
Method used
A toothed belt design featuring a cross-linked rubber composition with a reinforcing cloth made of a woven fabric where the warp and weft yarns have specific fiber amounts and densities, ensuring a ratio that enhances dust abrasion resistance by preventing warp yarn exposure.
Benefits of technology
The design effectively prevents warp yarn exposure, maintaining the reinforcing fabric's integrity and improving dust wear resistance, even in dusty environments, thus enhancing the belt's durability.
✦ Generated by Eureka AI based on patent content.
Abstract
This toothed belt 1 has a back part 11 and belt teeth 12. The belt teeth 12 each include a tooth part 22 made of a crosslinked rubber composition, and a reinforcing cloth 4 covering a surface of the tooth part 22. The reinforcing cloth 4 is a woven fabric 41 including warp threads 42 and weft threads 43. The warp threads 42 are arranged in the circumferential direction, and the weft threads 43 are arranged in the width direction. Designating the product of the fineness and the yarn density of the warp fibers 42 as the unit fiber amount of the warp fibers 42, and the product of the fineness and the yarn density of the weft fibers 43 as the unit fiber amount of the weft fibers 43, the ratio of the unit fiber amount of the weft fibers 43 to the unit fiber amount of the warp fibers 42 is 2.0 or more, the unit fiber amount of the weft fibers 43 is 80000 to 400000 dtex / 5 cm (inclusive), and the unit fiber amount of the warp fibers 42 is 15000 to 65,000 dtex / 5 cm (inclusive).
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