The present invention discloses a caster and whiteboard caster and to easily and stably perform the switching between teaching tools and attached to the moving state and the stop state to furniture having a whiteboard.
Caster according to the present invention includes a wheel engaged with the lower end of the fixed shaft formed with external threads at its upper side so that the nut is tightened, the shaft hole to tighten a nut after passed through the fixed shaft of the wheel center is perforated, and a sliding member operating shaft hole is formed on the peripheral surface, an eccentric shaft which is fitted into the actuating shaft hole of the sliding member is formed on one side, it is projected from the center of the other side and eccentric rotation member having a shaft bolt, and lifting means consisting of a first working space in which the sliding member is formed through the center of the plugged and vertically movable manner perpendicular direction, the wheel is rotated and a second working space vertically movable, and a third working space the eccentric shaft is fitted the eccentric rotation member is formed through the horizontal direction to be introduced into the first working space is formed in the upper and tightening female thread was, a body consisting of, before An actuating lever engaging hole is drilled in the center to be fitted in the axial bolt of the eccentric rotation member, and a fixing nut for fixing the actuating lever the eccentric is screwed to the shaft bolt rotational member, the third actuation of said main body and a fixing means comprising a first fixing portion or the second fixing portion so as to perform the stop of the stop and the rotation loss of the eccentric rotation member is fitted in the space, the casters pillar frame stationary whiteboard characterized in that attached to the cradle that is fixed to the lower end.