Power transmission device and image forming apparatus including the same

US9268247B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9268247-B2
Application numberUS-201414451697-A
CountryUS
Kind codeB2
Filing dateAug 5, 2014
Priority dateAug 23, 2013
Publication dateFeb 23, 2016
Grant dateFeb 23, 2016

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

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A power transmission device includes a drive coupling, a driven coupling, and an intermediate transmission member. The drive coupling receives power from a drive source and rotates. The driven coupling is disposed coaxially on a first rotary shaft of the drive coupling and detachably attachable relative to the main body of the image forming apparatus. The intermediate transmission member meshes with the drive coupling and the driven coupling and is held by one of the drive coupling and the driven coupling in a state in which the driven coupling is disengaged from the main body. One of the drive coupling and the driven coupling, whichever holds the intermediate transmission member, constitutes a retaining coupling including an attachment member attached to one of a drive-side device and a driven-side device, and a stopper assembly facing the intermediate transmission member in an axial direction of the first rotary shaft.

First claim

Opening claim text (preview).

What is claimed is: 1. A power transmission device, comprising: a drive coupling to receive power from a drive source of a main body of an image forming apparatus and rotate; a driven coupling disposed coaxially on a first rotary shaft of the drive coupling and detachably attachable relative to the main body of the image forming apparatus; and an intermediate transmission member, including at least a first flange, to mesh with the drive coupling and the driven coupling, the in…

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What does patent US9268247B2 cover?
A power transmission device includes a drive coupling, a driven coupling, and an intermediate transmission member. The drive coupling receives power from a drive source and rotates. The driven coupling is disposed coaxially on a first rotary shaft of the drive coupling and detachably attachable relative to the main body of the image forming apparatus. The intermediate transmission member meshes…
Who is the assignee on this patent?
Yamazaki Kimiharu, Miyawaki Katsuaki, Watanabe Tetsuo, and 2 more
What technology area does this patent fall under?
Primary CPC classification G03G21/186. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Feb 23 2016 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).