Apparatus for loading and unloading tires for a tire vulcanizing machine

Claim 1

An apparatus for loading or unloading tires for a tire vulcanizing machine, characterized in that said apparatus essentially comprises a pair of vertically extending guide rods fixedly secured to a housing of the tire vulcanizing machine, a common board slidably fitted onto said guide rods so as to be displaced in the vertical direction with the aid of driving means, a pair of booms adapted to be displaced in the vertical direction together with said common board, each of said booms being turnable about the guide rod, tire grasping means including a plurality of grasping pawls disposed at the one end of each of the booms, said grasping pawls being adapted to expand or contract, and means for limiting the extent of turning movement of the boom.

Claim 2

An apparatus for loading or unloading tires for a tire vulcanizing machine, characterized in that said apparatus essentially comprises a pair of vertically extending guide rods fixedly secured to a housing of the tire vulcanizing machine, a common board slidably fitted onto said guide rods so as to be displaced in the vertical direction with the aid of driving means, a pair of booms adapted to be displaced in the vertical direction together with said common board, each of said booms being turnable about the guide rod, tire grasping means including a plurality of grasping pawls disposed at the one end of each of the booms, said grasping pawls being adapted to expand or contract, and means for limiting the extent of turning movement of the boom.

Claim 10

An apparatus for loading tires for a tire vulcanizing machine, characterized in that said apparatus essentially comprises a hydraulic cylinder fixedly secured to a stationary bracket, said hydraulic cylinder including an actuating rod adapted to expand or contract in the vertical direction, a pair of vertically extending guide rods fixedly mounted on said bracket, a common board slidably fitted onto the pair of guide rods at the one end part thereof, said common board being adapted to move up and down with the aid of said hydraulic cylinder of which actuating rod is fixedly connected to the common board at its uppermost end, a pair of booms slidably fitted onto the guide rods at the one end part and carrying tire grasping means at the other end part thereof, said tire grasping means comprising a plurality of grasping pawls adapted to expand and contract, a pair of second hydraulic cylinders for turning each of the booms about the guide rods, the one end part of each of said second hydraulic cylinders being operatively connected to the boom at the position located intermediate the common board and the boom, and a pair of stopper rods operatively connected to the common board at the one end part and carrying a stop member at the other end part thereof, each of said stopper rods extending through a hole on a stopper turnably disposed at the middle part of the boom in such a manner as to slide through said hole as the boom is turned.

Claim 11

An apparatus for loading tires for a tire vulcanizing machine, characterized in that said apparatus essentially comprises a hydraulic cylinder fixedly secured to a stationary bracket, said hydraulic cylinder including an actuating rod adapted to expand or contract in the vertical direction, a pair of vertically extending guide rods fixedly mounted on said bracket, a common board slidably fitted onto the pair of guide rods at the one end part thereof, said common board being adapted to move up and down with the aid of said hydraulic cylinder of which actuating rod is fixedly connected to the common board at its uppermost end, a pair of booms slidably fitted onto the guide rods at the one end part and carrying tire grasping means at the other end part thereof, said tire grasping means comprising a plurality of grasping pawls adapted to expand and contract, a pair of second hydraulic cylinders for turning each of the booms about the guide rods, the one end part of each of said second hydraulic cylinders being operatively connected to the boom at the position located intermediate the common board and the boom, and a pair of stopper rods operatively connected to the common board at the one end part and carrying a stop member at the other end part thereof, each of said stopper rods extending through a hole on a stopper turnably disposed at the middle part of the boom in such a manner as to slide through said hole as the boom is turned.

Claim 14

An apparatus for unloading tires for a tire vulcanizing machine, characterized in that said apparatus essentially comprises a pair of vertically extending guide rods disposed at the predetermined position located between the tire vulcanizing machine and the post-cure inflator, each of said guide rods being fixedly secured to the tire vulcanizing machine by way of a bracket extending therebetween, a pair of booms slidably fitted onto the guide rods at the one end part thereof so as to turn between two positions with the aid of hydraulic cylinders, one of said positions being the center of a die on the tire vulcanizing machine while the other one being the center of post-cure inflator rings on the post-cure inflator, each of said booms being adapted to move up and down along the guide rods, and tire grasping means disposed at the other end part thereof for grasping a vulcanized tire at the bead portion, said tire grasping means including a plurality of grasping pawls adapted to expand and contract.

Claim 15

An apparatus for unloading tires for a tire vulcanizing machine, characterized in that said apparatus essentially comprises a pair of vertically extending guide rods disposed at the predetermined position located between the tire vulcanizing machine and the post-cure inflator, each of said guide rods being fixedly secured to the tire vulcanizing machine by way of a bracket extending therebetween, a pair of booms slidably fitted onto the guide rods at the one end part thereof so as to turn between two positions with the aid of hydraulic cylinders, one of said positions being the center of a die on the tire vulcanizing machine while the other one being the center of post-cure inflator rings on the post-cure inflator, each of said booms being adapted to move up and down along the guide rods, and tire grasping means disposed at the other end part thereof for grasping a vulcanized tire at the bead portion, said tire grasping means including a plurality of grasping pawls adapted to expand and contract.