Roller for supporting materials
US-12570491-B2 · Mar 10, 2026 · US
Expansion device for holding and securing rolled material
US9150381B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9150381-B2 |
| Application number | US-201313944248-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 17, 2013 |
| Priority date | Aug 13, 2012 |
| Publication date | Oct 6, 2015 |
| Grant date | Oct 6, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An expansion device configured for securely holding a rolled material when the rolled material is handled on roller is disclosed. The expansion device includes a roller spindle, two expansion members, a fixing sleeve, a clamping nut, and a locking member. The locking member moves toward the expansion members, so that the two expansion members expand toward the fixing sleeve, and protrusions which are formed on the expansion members are pressed outward through fixing holes of the fixing sleeve, and then resist against an inner surface of rolled material inside a rolling hole formed therethrough the rolled material. Thus, the rolled material is held securely by the expansion device.
First claim
Opening claim text (preview).
What is claimed is: 1. An expansion device for holding and securing a rolled material, comprising: a roller spindle comprising a first inclined surface; at least one expansion member, each of the at least one expansion member comprising: a main body comprising a second inclined surface and a third inclined surface formed on opposite ends thereof, the main body mounted on the roller spindle, and the first inclined surface resisting against the second inclined surface; and a pl…
Assignees
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Operations & Transport · mapped topic
- B65H75/246Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9150381B2 cover?
- An expansion device configured for securely holding a rolled material when the rolled material is handled on roller is disclosed. The expansion device includes a roller spindle, two expansion members, a fixing sleeve, a clamping nut, and a locking member. The locking member moves toward the expansion members, so that the two expansion members expand toward the fixing sleeve, and protrusions whi…
- Who is the assignee on this patent?
- Hongfujin Prec Ind Shenzhen, Hon Hai Prec Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B65H75/246. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 06 2015 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).