Patent ID: 7134541

Claim:
A conveyance apparatus for a processing step in which travel rails are laid along said processing step in which a processing liquid tank is disposed, a movable body is disposed movably on said travel rails for movement in a direction of travel along said travel rails by means of a plurality of wheels, and a conveyed object held on said movable body is immersed into the processing liquid and processed, wherein said movable body comprises: a suspended supporting device for supporting said conveyed object in such a manner that a posture of said object can be adjusted; a raising and lowering device for raising and lowering said suspended supporting device with respect to said processing liquid tank; and a posture adjusting device for operating said suspended supporting device and adjusting the posture of said conveyed object, wherein said raising and lowering device comprises: a first supporting axle disposed in a horizontal direction that is orthogonal to the direction of travel, at one of the front and rear of the movable body in the direction of travel; a second supporting axle disposed in parallel to said first supporting axle at the other of the front and rear of the movable body in the direction of travel, and being linearly movable towards and away from said first supporting axle; a crank arm supported rotatably on said second supporting axle and rotatably supporting said suspended supporting device at a free end portion thereof by means of a free end supporting axle; a swinging arm fixed to said first supporting axle and having a free end portion thereof coupled to an intermediate position of said crank arm by means of a coupling axle; and an arm drive device for causing said crank arm to rotate about said second supporting axle, wherein said posture adjusting device comprises: a second passive lever fixed to said second supporting axle; a linear drive device for driving said second passive lever in pushing and pulling action; and a transmission device for coupling together said second supporting axle and said free end supporting axle, wherein said arm drive device comprises: a first passive lever fixed to said first supporting axle, and a linear drive device for driving said first passive lever in a pushing and pulling action.