Abstract: A target hitting game machine includes a cover member being formed with an opening; a target having an effective hitting area on a portion of the surface thereof, the target being rotatably disposed in the cover member and partially exposed through the opening during the rotation; a drive mechanism which rotates the target; an exposure detector which detects that the effective hitting area of the target is exposed through the opening; a hit detector which senses that the target is hit by a player; and a successful hitting determinator which is in responsive to the exposure detector and the hit detector and determines a successful hitting that the effective hitting area is hit.

Abstract: A rotary motion to longitudinal motion converting mechanism comprising a passive rack with a plurality of teeth, a plurality of active racks respectively having a plurality of teeth having the same pitch as that of the teeth of the passive rack and meshing with the passive rack, and a plurailty of rotatable crankshafts respectively having eccentric circular portions different in phase from one another and respectively having the active racks supported on the eccentric circular portions in such a manner that the passive rack is moved in its longitudinal direction through the active racks by rotary motions of the plurality of rotatable crankshafts.