Transmission belt
US-11644082-B2 · May 9, 2023 · US
Toothed belt
US12467516B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12467516-B2 |
| Application number | US-202218273499-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 21, 2022 |
| Priority date | Jan 25, 2021 |
| Publication date | Nov 11, 2025 |
| Grant date | Nov 11, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A toothed belt including a reinforcing layer with 0.05 mm to 0.2 mm thickness buried along a contour of tooth portions such that a maximum height from a bottom portion of the tooth portion to the reinforcing layer is in a range of 30% to 100% of a height from the bottom portion to a tooth tip, in which the reinforcing layer includes reinforcing fiber filaments arranged in a belt circumferential direction, in the reinforcing layer, a weight per unit area of fibers intersecting the belt circumferential direction is 30% or less of a weight per unit area of the reinforcing fiber filaments, the reinforcing layer has a structure where the reinforcing fiber filaments are arranged in the belt circumferential direction and bonded to form a sheet shape in an untwisted state, and a tensile modulus of the reinforcing fiber filament satisfies a specific condition.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A toothed belt comprising: tooth portions arranged at predetermined intervals in a belt circumferential direction; and a reinforcing layer buried along a contour of the tooth portions, wherein, the reinforcing layer is buried in each of the tooth portions such that a maximum height from a bottom portion of the tooth portion to the reinforcing layer is in a range of 30% to 63% of a height from the bottom portion of the tooth portion to a tooth tip of the tooth portion, the reinforcing layer comprises a plurality of reinforcing fiber filaments arranged in the belt circumferential direction, and comprises no fibers intersecting the belt circumferential direction, the reinforcing layer has a structure in which the reinforcing fiber filaments are arranged in the belt circumferential direction and bonded to form a sheet shape in an untwisted state, the reinforcing layer has a thickness of 0.05 mm to 0.2 mm, and a tensile modulus (GPa) of each of the reinforcing fiber filaments satisfies a condition of: 5≤[thickness (mm) of the reinforcing layer]×[tensile modulus (GPa) of the reinforcing fiber filament]≤60, and a value of the tensile modulus is 50 GPa to 300 GPa. 2 . The toothed belt according to claim 1 , wherein each of the reinforcing fiber filaments has a diameter of 0.1 μm to 50 μm. 3 . The toothed belt according to claim 1 , wherein the value of the tensile modulus of each of the reinforcing fiber filaments is 50 GPa to 230 GPa. 4 . The toothed belt according to claim 1 , wherein the tensile modulus (GPa) of each of the reinforcing fiber filaments satisfies a condition of: 23≤[thickness (mm) of the reinforcing layer]×[tensile modulus (GPa) of the reinforcing fiber filament]≤60. 5 . The toothed belt according to claim 1 , wherein the reinforcing layer is buried in each of the tooth portions such that the maximum height from the bottom portion of the tooth portion to the reinforcing layer is in a range of 38% to 53% of the height from the bottom portion of the tooth portion to the tooth tip of the tooth portion.
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- What does patent US12467516B2 cover?
- A toothed belt including a reinforcing layer with 0.05 mm to 0.2 mm thickness buried along a contour of tooth portions such that a maximum height from a bottom portion of the tooth portion to the reinforcing layer is in a range of 30% to 100% of a height from the bottom portion to a tooth tip, in which the reinforcing layer includes reinforcing fiber filaments arranged in a belt circumferential…
- Who is the assignee on this patent?
- Mitsuboshi Belting Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16G1/28. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 11 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).