US Patent No. 11,109,532


Patent No. 11,109,532
Issue Date September 07, 2021
Title Lawn Mower With Speed Controlled Shutter Device
Inventorship Koji Kuriyagawa, Wako (JP)
Hajime Yoshimura, Wako (JP)
Shota Tanabe, Wako (JP)
Assignee HONDA MOTOR CO., LTD., Tokyo (JP)

Claim of US Patent No. 11,109,532

1. A lawn mower, comprising:a work unit including a housing having a downward-facing opening and a cutter blade rotatably provided in the housing such that when rotated, the cutter blade cuts grass and generates a transport air flow flowing from the opening of the housing to inside;
a grass clippings receptacle configured to receive mowed grass clippings;
a grass clippings transport passage connecting an interior of the housing with the grass clippings receptacle;
a shutter device including a shutter configured to open and close the grass clippings transport passage and an actuator configured to open/close-drive the shutter;
a controller configured to control the shutter device; and
a speed sensor for detecting a travel speed of the lawn mower,
wherein the controller is configured to open/close-control the shutter device based on the travel speed.