Abstract: Disclosed herein is a standing well post type center mechanism in a tire press which comprises a bladder well disposed vertically liftably in the center of the tire press, the bladder well comprising a bead ring at the upper end thereof, an upper clamp ring assembly for holding the upper end of a bladder, the upper clamp ring assembly disposed concentrically with the bladder well and being vertically liftable independently of the bladder well, and a lower clamp ring assembly concentrical with the upper clamp ring assembly and vertically liftable independently of the bladder well and the upper clamp ring assembly, wherein an air cylinder for lifting the upper clamp ring assembly is disposed liftably in the bladder well, the upper clamp ring assembly is fitted to the upper end of a piston rod in the air cylinder, the lower clamp ring assembly is fitted to the upper end of the air cylinder, and the lower end of the air cylinder is constrained engageably and disengageably through a stopper.

Abstract: A method of manufacturing a shadow mask, comprising the steps of forming a first resist pattern having a large number of openings on one major surface of a thin metal plate and a second resist pattern on the other major surface, the second resist pattern having a large number of openings with an opening size larger than that of the first resist pattern, etching the thin metal plate surface having the first resist pattern to form first recesses, removing the first resist pattern, forming an etching-resistive layer on the thin metal plate surface having the first recesses to fill the first recesses, etching the thin metal plate surface having the second resist pattern to form second recesses which have a size larger than that of the first recesses and communicate with the first recesses, treating and swelling the etching-resistive layer with an alkali solution, spraying warm water to the etching-resistive layer to remove the etching-resistive layer, and removing the second resist pattern.

Abstract: A tire vulcanizing press, including a vertical metal mold capable of being opened and closed; a central mechanism arranged on a center portion of a lower portion of the metal mold; a bladder held in the central mechanism in a liftable, extendable, and contractible manner; a centering device for a tire to be removed from the mold; and a tire removal arm provided on a first side of the vulcanizing press so as to be horizontally movable back and forward with respect to the vulcanizing press movable perpendicularly up and down at a center portion of the metal mold; the centering device including a centering arm which includes a plurality of centering bars and which is movable back and forward with the removal arm, is separately movable up and down perpendicularly at the center of the metal mold, and is movable back and forward in a radial direction of the tire within a tire opening edge.

Abstract: A vertically opening and closing type tire vulcanizer in which a plurality of vulcanizing molds installed on a vulcanizer frame are individually driven. A mold clamping mechanism and a mold height adjusting mechanism which are simplified in terms of construction are provided. A high rigidity heat insulating plate for transmitting a clamping force is interposed between a top slide and an upper mold.

Abstract: A mechanism for transferring cured tires from a tire press to a post-inflator, which includes a plurality of ejector arms located between the tire press and post-inflator and movable horizontally toward and away from the tire press and vertically up and down in a receded position outside the tire press, and receiver arms supported on the post-inflator and horizontally movable back and forth in parallel relationship with and at a level vertically spaced from the ejector arms, the receiver arms being spaced from each other by a predetermined distance to permit passage of the ejector arms and a lower rim of the post-inflator vertically therethrough.

Abstract: A central mechanism in a tire vulcanizing press including a shaping bladder, a hot pressure supply source, an upper bladder clamp supporting center post, a lower bladder clamp supporting post through which is inserted the center post vertically movably, a mechanism for vertically independently moving both posts, and a latch mechanism for preventing the descent of the support post during vulcanizing press for a tire, the latch mechanism being driven selectively in opening and closing directions relative to the support post by means of a latch opening/closing device, the latch opening/closing device including a drive mechanism capable of moving vertically along a vertical axis, member for converting a vertical linear motion of the drive, a mechanism into a rotational motion around the vertical axis and means for transmitting the thus -obtained rotational motion to the latch mechanism.

Abstract: A tire vulcanizer which includes a lower mold assembly secured to a press base, an upper mold assembly held movably up and down on a press side frame and provided to be opened and closed with respect to the lower mold assembly, a molding bladder expansible with respect to a center mechanism of the lower mold assembly and pressurized heating medium supplying means, wherein for maintaining a parallelism of the upper and lower mold assemblies, a torsion shaft for maintaining the parallelism which is movable up and down and rotatable about an axis in synchronism with the upper mold assembly is mounted at a position parallel to the press base, at a right angle to the side frame and not interfering with the upper and lower mold assemblies.

Abstract: An apparatus for loading unvulcanized tires on a tire vulcanizing machine of the sort which has a vertically movable loader arm with a contractibly expansible paddle at the fore end thereof, an oscillating cylinder cooperative with a movable arm for oscillating the loader arm in a horizontal plane, and a stand-by station for temporarily holding unvulcanized tires to be loaded on the vulcanizing machine, the loader arm being adapted to load the unvulcanized tires one after another in a mold on the machine by lifting, oscillating and paddle-expanding operations. The loading apparatus is characterized by the provision of a plural number of stand-by stations on a locus of oscillatory movement of one loader arm, and a plural number of oscillating cylinders cooperative with a corresponding number of movable arms for oscillating the loader arm between the center of the mold and a selected one of the stand-by stations.