Image reading device including an optical unit for reading a document image, image forming apparatus therewith, and optical unit for reading a document image

US8928958B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8928958-B2
Application numberUS-201414154332-A
CountryUS
Kind codeB2
Filing dateJan 14, 2014
Priority dateJan 16, 2013
Publication dateJan 6, 2015
Grant dateJan 6, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An image reading device has an optical unit and a rail portion formed of sheet metal. The optical unit is scanned in the sub scanning direction to read an image on a document on a contact glass. The rail portion slidably supports the optical unit. The optical unit has a sliding portion which slides on the rail portion while making contact therewith, and at least one pair of gripping portions which grip the rail portion. The surface of the sliding portion has a substantially arc-shaped cross section. The rail portion has two inclined surfaces that make contact with the substantially arc-shaped surface at two points.

First claim

Opening claim text (preview).

What is claimed is: 1. An image reading device comprising: a contact glass on which a document is placed; an optical unit arranged under the contact glass, the optical unit being scanned in a sub scanning direction to read an image on the document placed on the contact glass; and a rail portion extending in the sub scanning direction, the rail portion supporting the optical unit such that the optical unit is slidable in the sub scanning direction, wherein the optical unit…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8928958B2 cover?
An image reading device has an optical unit and a rail portion formed of sheet metal. The optical unit is scanned in the sub scanning direction to read an image on a document on a contact glass. The rail portion slidably supports the optical unit. The optical unit has a sliding portion which slides on the rail portion while making contact therewith, and at least one pair of gripping portions wh…
Who is the assignee on this patent?
Kyocera Document Solutions Inc
What technology area does this patent fall under?
Primary CPC classification H04N1/1017. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 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).