VACUUM CLEANER AND GRAVITY COMPENSATION APPARATUS THEREFOR

摘要

The vacuum cleaner according to the concept of the present invention comprises a gravity compensation apparatus which exerts a compensation force to a handle unit so as to compensate torque caused by gravity applied to the handle unit, the gravity compensation apparatus comprising: an elastic member having elasticity which allows the generation of a compensation force; and a sliding member which performs a translational motion according to the rotational motion of the handle unit so that the compensation force can be maintained in a predetermined direction regardless of the angle of the handle unit. The gravity compensation apparatus can precisely compensate the torque caused by the gravity applied to the handle unit and can reduce a user's burden.