Self-aligning driveshaft coupler
US-2016348731-A1 · Dec 1, 2016 · US
Manufacturing method of rotating element, connecting structure between rotating element and rotating shaft, and steering apparatus
US10167902B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10167902-B2 |
| Application number | US-201615200958-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 1, 2016 |
| Priority date | Jul 9, 2015 |
| Publication date | Jan 1, 2019 |
| Grant date | Jan 1, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A manufacturing method of a rotating element including a cylindrical fitting portion having a pair of circumferential end portions forming an axial slit between the circumferential end portions, the cylindrical fitting portion being serration-fitted to a rotating shaft, includes: clamping the fitting portion by a clamp jig so that the fitting portion is elastically deformed in an elliptical shape; forming a female serration arranged in an elliptical shape by use of a tool having an elliptical section, the female serration being formed on an inner peripheral surface of the fitting portion elastically deformed in the elliptical shape; and releasing the clamping by the clamp jig so that the arrangement of the female serration is changed to a perfect-circle shape from the elliptical shape.
First claim
Opening claim text (preview).
What is claimed is: 1. A manufacturing method of a rotating element including a cylindrical fitting portion having a pair of circumferential end portions forming an axial slit between the circumferential end portions, the cylindrical fitting portion being serration-fitted to a rotating shaft, the manufacturing method comprising: clamping the fitting portion by a clamp jig so that the fitting portion is elastically deformed in an elliptical shape that is flat in a predetermined radial direction toward the axial slit; forming a female serration arranged in an elliptical shape by use of a tool having an elliptical section with a short diameter in the predetermined radial direction, the female serration being formed on an inner peripheral surface of the fitting portion clamped by the clamp jig so as to be elastically deformed in the elliptical shape; and releasing the clamping by the clamp jig so that the arrangement of the female serration is changed to a perfect-circle shape from the elliptical shape. 2. The manufacturing method according to claim 1 , wherein: a difference between a long diameter and a short diameter of an ellipse formed by the inner peripheral surface of the fitting portion clamped by the clamp jig is equal to a difference between a long diameter and a short diameter of an ellipse formed by the tool. 3. The manufacturing method according to claim 1 , wherein the difference between the long diameter and the short diameter of the ellipse formed by the tool is larger than a deviation amount of the difference between the long diameter and the short diameter of the ellipse formed by the inner peripheral surface of the fitting portion clamped by the clamp jig.
Assignees
Inventors
Classifications
Joints, e.g. ball joints, universal joints · CPC title
Connecting steering column to steering gear · CPC title
of devices for feeding, clamping, or ejecting workpieces · CPC title
- F16D3/387Primary
Fork construction; Mounting of fork on shaft; Adapting shaft for mounting of fork · CPC title
due to tangential loading of the hub, e.g. a split hub · CPC title
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- What does patent US10167902B2 cover?
- A manufacturing method of a rotating element including a cylindrical fitting portion having a pair of circumferential end portions forming an axial slit between the circumferential end portions, the cylindrical fitting portion being serration-fitted to a rotating shaft, includes: clamping the fitting portion by a clamp jig so that the fitting portion is elastically deformed in an elliptical sha…
- Who is the assignee on this patent?
- Jtekt Corp, Koyo Machine Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16D3/387. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 01 2019 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).