Movable carriage

US8996253B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8996253-B2
Application numberUS-201313960629-A
CountryUS
Kind codeB2
Filing dateAug 6, 2013
Priority dateAug 8, 2012
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A movable carriage having front wheels and rear wheels includes, a detection unit detecting a direction caused by the operator pushing or pulling a grip unit, a rear-wheel steering angle changing unit changing a steering angle to cause a phase of the rear wheel to be the same as or opposite to the phase of the front wheel according to whether an angle between the detected direction and a center axis of the movable carriage is a predetermined angle or smaller, and a front-wheel steering angle changing unit changing a steering angle to cause a phase of the front wheel to be the same as or opposite to the detected direction according to whether the detected direction is a direction in which the movable carriage is pushed or pulled, when the angle between the detected direction and the center axis of the carriage exceeds the predetermined angle.

First claim

Opening claim text (preview).

What is claimed is: 1. A movable carriage having a front wheel and a rear wheel, comprising: a grip unit configured to be held and pushed or pulled by an operator for operating a moving direction of the movable carriage; a detection unit configured to detect a direction in which the operator pushes or pulls the grip unit; a rear-wheel steering angle changing unit configured to change a steering angle so as to cause a phase of the rear wheel to be the same as or opposite to a p…

Assignees

Inventors

Classifications

  • Operations & Transport · mapped topic

  • B62D6/04Primary

    Operations & Transport · mapped topic

  • B62D1/02Primary

    Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

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Frequently asked questions

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What does patent US8996253B2 cover?
A movable carriage having front wheels and rear wheels includes, a detection unit detecting a direction caused by the operator pushing or pulling a grip unit, a rear-wheel steering angle changing unit changing a steering angle to cause a phase of the rear wheel to be the same as or opposite to the phase of the front wheel according to whether an angle between the detected direction and a center…
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification B62D6/04. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 31 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).