Working Machine

A working machine, comprising:

• a main body including:
• a travel motor configured to generate rotational power for causing travel of the main body,
• a mounting portion configured to allow a battery for supplying electric power to the travel motor to be detachably mounted;
• and
• an attachment portion disposed inside a predetermined area formed in a plan view of the main body, wherein:
• the predetermined area is an area formed between a first straight line and a second straight line,
• the first straight line is a line that passes, in a left-right direction orthogonal to a front-rear direction, through a center position of the travel motor with respect to the front-rear direction that is a traveling direction of the main body;
• and
• the second straight line is a line that passes, in the left-right direction, through a center position of the mounting portion with respect to the front-rear direction;
• and
• an operation unit connected to the attachment portion, the operation unit beingconfigured to be operable so as to assist the travel of the main body.