Patent ID: 11878726
Assignee: MAKITA CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 14:
15. A handcart comprising:
a chassis unit; and
a container unit configured to be detachably attached to the chassis unit,
wherein
the chassis unit includes:
a front wheel unit rotatably supporting a front wheel;
a rear wheel unit rotatably supporting a rear wheel;
a chassis frame extending in a front-rear direction and supporting the front wheel unit and the rear wheel unit; and
a prime mover configured to rotate at least one of the front wheel and the rear wheel as a drive wheel,

the container unit is selected from a group including at least a first container unit and a second container unit,
the first container unit includes:
a first container; and
a first container frame extending in the front-rear direction and supporting the first container, wherein the first container is configured to be movable with respect to at least a portion of the first container frame while the first container unit is attached to the chassis unit,

the second container unit includes:
a second container; and
a second container frame extending in the front-rear direction and supporting the second container, wherein the second container is configured to be movable with respect to at least a portion of the second container frame while the second container unit is attached to the chassis unit, wherein

the chassis unit further includes:
a grip portion configured to be gripped by a user;
a grip detection member configured to detect whether the user is gripping the grip portion or not;
a mechanical brake configured to brake rotation of the drive wheel when the grip detection member does not detect that the user is gripping the grip portion
a clutch mechanism disposed on a power transmission path from the prime mover to the drive wheel and configured to switch between a state in which power transmission from the prime mover to the drive wheel is allowed and a state in which the power transmission from the prime mover to the drive wheel is cut off; and
an auxiliary brake mechanism disposed between the clutch mechanism and the drive wheel.