A guide mechanism 100 is equipped with a guiding body 31 including a guiding trajectory, and a movable body 32 guided so as to move along the guiding trajectory. The guide mechanism 100 is further equipped with an elastic body 102 of a coil shape with one end thereof being connected to the movable body 32 and extends along the guiding body 31 from the one end thereof, and a first supporting body 106 and a second supporting body 108 which supports the elastic body 102 along the guiding body 31. An electric wiring W for connecting electric equipments together is inserted into the elastic body 102.