Self pumping and priming adhesive joint system
US-9382933-B2 · Jul 5, 2016 · US
FRP drive shaft
US10138925B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10138925-B2 |
| Application number | US-201515310257-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 6, 2015 |
| Priority date | May 26, 2014 |
| Publication date | Nov 27, 2018 |
| Grant date | Nov 27, 2018 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
An FRP drive shaft includes an end joint joined to at least one end of an FRP cylinder via an outer collar. The end joint includes a serrated portion on an outer periphery thereof. The outer collar includes a small-diameter collar portion and a large-diameter collar portion. The serrated portion is press-fitted into an inner periphery of the FRP cylinder and fixed to an inner periphery of the small-diameter collar portion. A gap between an inner periphery of the large-diameter collar portion and an outer periphery of the FRP cylinder is filled with an adhesive for fixing the inner periphery of the large-diameter collar portion and the outer periphery of the FRP cylinder to each other. An adhesive-accumulating space which partially increases a filling amount of the adhesive is formed between the inner periphery of the large-diameter collar portion and the outer periphery of the FRP cylinder.
First claim
Opening claim text (preview).
The invention claimed is: 1. An FRP drive shaft comprising an end joint joined to at least one end of an FRP cylinder via an outer collar, wherein said end joint includes a serrated portion on an outer periphery thereof, wherein said outer collar includes a small-diameter collar portion and a large-diameter collar portion which is greater in diameter than said small-diameter collar portion, wherein said serrated portion is press-fitted into an inner periphery of said FRP cylinder and fixed to an inner periphery of said small-diameter collar portion, wherein a gap between an inner periphery of said large-diameter collar portion and an outer periphery of said FRP cylinder is filled with an adhesive for fixing said inner periphery of said large-diameter collar portion and said outer periphery of said FRP cylinder to each other, and wherein said inner periphery of said large-diameter collar portion includes a constant-diameter portion which is formed on a first area of said inner periphery of said large-diameter collar portion and an adhesive-accumulating tapered portion which is formed on a second area of said inner periphery of said large-diameter collar portion, said first area of said inner periphery of said large-diameter collar portion being closer to said small-diameter collar portion than said second area of said inner periphery of said large-diameter collar portion, wherein a distance between said constant-diameter portion and said outer periphery of said FRP cylinder is substantially constant, wherein said adhesive-accumulating tapered portion is configured to progressively increase a radial distance between said adhesive-accumulating tapered portion and said outer periphery of said FRP cylinder in a direction away from said small-diameter collar portion, and wherein said adhesive-accumulating tapered portion is open, along an axial direction, at a position where a distance between said adhesive-accumulating tapered portion and said outer periphery of said FRP cylinder is a maximum. 2. The FRP drive shaft according to claim 1 , wherein said serrated portion is press-fitted into said inner periphery of said FRP cylinder and said inner periphery of said small-diameter collar portion so as to extend over said inner periphery of said FRP cylinder and said inner periphery of said small-diameter collar portion. 3. The FRP drive shaft according to claim 1 , wherein an axial length of said adhesive-accumulating tapered portion is set within a range of 5 mm through 15 mm. 4. The FRP drive shaft according to claim 1 , wherein a fore end of said adhesive-accumulating tapered portion and a fore end of said serrated portion are offset from each other within a range of 5 mm through 15 mm. 5. The FRP drive shaft according to claim 1 , wherein a base end of said adhesive-accumulating tapered portion and a fore end of said serrated portion are offset from each other within a range of 10 mm through 30 mm. 6. The FRP drive shaft according to claim 1 , wherein a taper ratio of said adhesive-accumulating tapered portion is within a range of 0.5/15 through 2/5.
Assignees
Inventors
Classifications
non-disconnectable, e.g. involving gluing, welding or the like · CPC title
Shafts made of fibre reinforced resin · CPC title
- F16C3/023Primary
made of several parts, e.g. by welding · CPC title
Drive shafts · CPC title
Socket or open cup for bonding material · CPC title
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Frequently asked questions
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- What does patent US10138925B2 cover?
- An FRP drive shaft includes an end joint joined to at least one end of an FRP cylinder via an outer collar. The end joint includes a serrated portion on an outer periphery thereof. The outer collar includes a small-diameter collar portion and a large-diameter collar portion. The serrated portion is press-fitted into an inner periphery of the FRP cylinder and fixed to an inner periphery of the s…
- Who is the assignee on this patent?
- Fujikura Rubber Ltd, Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16C3/023. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 27 2018 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).