Cleaning machine

A cleaning machine comprising:

• a first brush comprising a first brush shaft extending in a left-right direction and a first brush body held by the first brush shaft;
• a second brush comprising a second brush shaft extending in the left-right direction and a second brush body held by the second brush shaft;
• a brush supporting member supporting each of the first brush and the second brush such that the first brush and the second brush are rotatable;
• a body pivotally supporting the brush supporting member;
• and
• a motor configured to rotate the first brush and the second brush,
• wherein
• the first brush, the body and the brush supporting member are configured such that at least the first brush moves in an up-down direction with respect to the body when the brush supporting member pivots with respect to the body, and
• the motor is supported by the brush supporting member.

A cleaning machine comprising:

• a first brush comprising a first brush shaft extending in a left-right direction and a first brush body held by the first brush shaft;
• a second brush comprising a second brush shaft extending in the left-right direction and a second brush body held by the second brush shaft;
• a brush supporting member supporting each of the first brush and the second brush such that the first brush and the second brush are rotatable;
• and
• a body pivotally supporting the brush supporting member,
• wherein
• the first brush, the body and the brush supporting member are configured such that at least the first brush moves in an up-down direction with respect to the body when the brush supporting member pivots with respect to the body,
• the first brush and the second brush are arranged along a front-rear direction,
• a pivot axis of the brush supporting member and a rotation axis of the second brush are substantially coaxial,
• the brush supporting member comprises:
• a first brush supporting member supporting one end of the first brush and one end of the second brush such that the first brush and the second brush are rotatable;
• a second brush supporting member supporting other end of the first brush and other end of the second brush such that the first brush and the second brush are rotatable;
• and
• a coupling member that couples the first brush supporting member with the second brush supporting member,
• the first brush supporting member is pivotally connected to the body by a pivot mechanism,
• the cleaning machine further comprises a motor configured to rotate the first brush and the second brush,
• the motor is supported by the brush supporting member,
• the cleaning machine further comprises a brush operation member coupled to the pivot mechanism and configured to receive an operation related to a movement of at least the first brush in the up-down direction from a user,
• the brush operation member is closer to the user than the first brush and the second brush when viewed from the user,
• the brush operation member comprises:
• a lever supporting member;
• and
• an operation lever pivotably supported by the lever supporting member,
• the body comprises a housing,
• the operation lever projects to outside through an opening of the housing,
• the cleaning machine further comprises a shutter member attached to the operation lever inside the housing and configured to cover the opening of the housing,
• the brush operation member further comprises:
• an engagement portion on the operation lever;
• and
• a plurality of engageable portions on the lever supporting member and configured to engage with the engagement portion,
• the first brush, the body and the operation lever are configured such that:
• the first brush moves downward with respect to the body when the user tilts the operation lever;
• and
• the first brush moves upward with respect to the body when the user raises the operation lever,
• the body comprises:
• a wheel;
• and
• a chassis supported by the wheel, and
• the cleaning machine further comprises a handle extending rearward and upward from the chassis and configured to be gripped by the user.