The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10426083 B1

Date of Patent:

Oct. 01, 2019

Filed:

Jun. 13, 2018

Blade assembly for a grass cutting mobile robot

Applicant:

Irobot Corporation, Bedford, MA (US);

Inventor:

Brian Doughty, Framingham, MA (US);

Assignee:

iRobot Corporation, Bedford, MA (US);

Attorney:

Fish & Richardson P.C.

Primary Examiner:

Alicia Torres

Int. Cl.

CPC ...

A01D 34/73 (2006.01); A01D 34/66 (2006.01); A01D 34/00 (2006.01); A01D 34/78 (2006.01); A01D 34/81 (2006.01); A01D 34/82 (2006.01); A01D 101/00 (2006.01);

U.S. Cl.

CPC ...

A01D 34/736 (2013.01); A01D 34/008 (2013.01); A01D 34/661 (2013.01); A01D 34/664 (2013.01); A01D 34/733 (2013.01); A01D 34/78 (2013.01); A01D 34/81 (2013.01); A01D 34/828 (2013.01); A01D 2101/00 (2013.01);

Abstract

A grass cutting mobile robot includes a body and a blade assembly connected to the body and rotatable about a drive axis. The blade assembly includes blades, a housing to hold the blades, and a spring that connects the blade to the housing. The housing includes a slot in which to mount a blade so that a portion of the blade is movable through the slot towards another blade in response to an impact. The slot slopes upwards in the housing towards the body, thereby enabling the blade to move upwards relative to a ground surface toward the body in response to the impact. The spring is for constraining movement of the blade relative to the housing.

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