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US-2021253137-A1 · Aug 19, 2021 · US
Railway wheel with brake disc
US2016339932A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016339932-A1 |
| Application number | US-201515113849-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 3, 2015 |
| Priority date | Feb 12, 2014 |
| Publication date | Nov 24, 2016 |
| Grant date | — |
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- Title
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Abstract
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A railway wheel includes: a wheel including a plate portion; and a brake disc including a circular plate portion whose front face side is a sliding surface, and a plurality of fin portions which are radially projected on a back face of the circular plate portion, wherein two of the brake discs are fastened in a region within the sliding surface. Regarding an area of a section crossing a space between the brake disc and the wheel along a circumferential direction, a minimum section portion in which the sectional area is minimum is present in a region formed by an outer peripheral surface of the circular plate portion and an inner peripheral surface of the rim portion, and the outer peripheral surface of the circular plate portion follows the inner peripheral surface of the rim portion in a region extending to the outer side from the minimum section portion.
First claim
Opening claim text (preview).
1 . A railway wheel with brake disc comprising: a wheel for a railway vehicle, comprising a boss portion, a rim portion, and a plate portion for combining them together; and a brake disc comprising an annular circular plate portion whose front face provides a sliding surface, and a plurality of fin portions which are radially projected on a back face of the circular plate portion, wherein two of the brake discs interpose the plate portion of the wheel with each of sliding surfaces thereof facing outwardly, and are fastened in a region within the sliding surface, and wherein regarding an area of a section crossing a space formed between the brake disc and the wheel along a circumferential direction, a minimum section portion in which the sectional area is minimum is present in a region formed by an outer peripheral surface of the circular plate portion and an inner peripheral surface of the rim portion, and the outer peripheral surface of the circular plate portion has a shape that follows the inner peripheral surface of the rim portion in a region extending to an outer side from the minimum section portion. 2 . The railway wheel with brake disc according to claim 1 , wherein the inner peripheral surface of the rim portion includes a corner surface connecting to a side face of the rim portion, and a fillet surface connecting to the corner surface and a side face of the plate portion, and the minimum section portion is present at a boundary between the corner surface and the fillet surface within the inner peripheral surface of the rim portion. 3 . The railway wheel with brake disc according to claim 1 , wherein the inner peripheral surface of the rim portion includes a corner surface connecting to a side face of the rim portion, and a fillet surface connecting to the corner surface and a side face of the plate portion, and the minimum section portion is present in a region of the fillet surface within the inner peripheral surface of the rim portion. 4 . The railway wheel with brake disc according to claim 3 , wherein the minimum section portion is present closest to the back face within the outer peripheral surface of the circular plate portion. 5 . The railway wheel with brake disc according to claim 2 , wherein the corner surface in the inner peripheral surface of the rim portion has a contour of arc shape in a section along the axial direction. 6 . The railway wheel with brake disc according to claim 3 , wherein the corner surface in the inner peripheral surface of the rim portion has a contour of arc shape in a section along the axial direction. 7 . The railway wheel with brake disc according to claim 4 , wherein the corner surface in the inner peripheral surface of the rim portion has a contour of arc shape in a section along the axial direction.
Assignees
Inventors
Classifications
to wheel · CPC title
Discs; Drums for disc brakes · CPC title
Noise or vibration control · CPC title
Connection elements · CPC title
circumferentially segmented · CPC title
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- What does patent US2016339932A1 cover?
- A railway wheel includes: a wheel including a plate portion; and a brake disc including a circular plate portion whose front face side is a sliding surface, and a plurality of fin portions which are radially projected on a back face of the circular plate portion, wherein two of the brake discs are fastened in a region within the sliding surface. Regarding an area of a section crossing a space b…
- Who is the assignee on this patent?
- Nippon Steel & Sumitomo Metal Corp
- What technology area does this patent fall under?
- Primary CPC classification B61F13/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Nov 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).