公开(公告)号：US09724261B2

公开(公告)日：2017-08-08

申请号：US15273055

申请日：2016-09-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinya Yamamoto ,  Yoshitaka Hane

IPC: B60G17/00 ,  A61H3/04 ,  B62B3/00 ,  B62B3/02

CPC classification number: A61H3/04 ,  A61H2003/043 ,  A61H2201/0173 ,  A61H2201/5007 ,  A61H2201/5058 ,  A61H2201/5069 ,  A61H2201/5079 ,  B62B3/008 ,  B62B3/02

Abstract: A handcart includes a main body, main wheels, support portions, auxiliary wheels, an extended portion, connection portions, a tilt angle sensor, and a gyro sensor. The main body is supported at one end thereof to be rotatable in a pitch direction relative to a pair of the main wheels. A bar-shaped connection portion of the extended portion is inserted through a tube portion at another end of the main body. The extended portion extends from the other end of the main body to a rear side in a travelling direction of the handcart. A region of each support portion from a rotation shaft of the main wheel to a rotation shaft of the auxiliary wheel and the extended portion are connected to each other by the connection portion. The connection portion is supported to be rotatable in the pitch direction relative to the support portion and the extended portion.