Abstract: A re-treading method and an apparatus therefor can detect a deviation amount of the position distant by a required tread length from the leading edge of the tread material from a predetermined pattern position near that position planned to be cut, cut the tread material at the at the predetermined position, wind the cut-out tread material on the outer circumference of the base tire while adjusting the length of the tread material by applying thereto a substantially uniform tensile or compressive force, and unite the leading and trailing edges of the tread material wound on the base tire.

Abstract: A re-treading method and an apparatus therefor, which are capable of winding a tread material on a base tire automatically and efficiently to realize an adequate joint condition of the leading and trailing edges of the tread material, are configured to take a photograph of a zone of the tread material including its cut position to compare the picture with a stored tread pattern image to detect a deviation amount between them, then moves the tread material or the cut position relative to each other by the deviation amount, next cut the tread material at the cut position after the relative movement, wind the tread material on a base tire, and unite the leading and trailing edges of the tread material.

Abstract: A re-treading method and an apparatus. An image of a zone of the tread material including its cut position is compared with a stored tread pattern image to detect a deviation amount. The tread material or the cut position are moved relative to each other by the deviation amount. The tread material is cut at the cut position after the relative movement. The tread material is wound on a base tire, and the leading and trailing edges of the tread material are united. The tread material or cut position may not be moved relative to each other if the deviation amount is within an allowable range.

Abstract: A re-treading method and an apparatus therefor, which are capable of winding a tread material on a base tire automatically and efficiently to realize an adequate joint condition of the leading and trailing edges of the tread material, are configured to take a photograph of a zone of the tread material including its cut position to compare the picture with a stored tread pattern image to detect a deviation amount between them, then moves the tread material or the cut position relative to each other by the deviation amount, next cut the tread material at the cut position after the relative movement, wind the tread material on a base tire, and unite the leading and trailing edges of the tread material.

Abstract: A method of measuring a gauge of used rubber portion of a buffed tire with an enhanced efficiency and high accuracy is disclosed, and in this method, workability of a buffing process can be improved. A buffing method is also disclosed which enhances a production efficiency of recaps, maintaining high levels of workability of the buffing process and quality of the recaps. An eddy-current sensor is used to measure a gauge g of used rubber portion or a thickness from an outer circumferential surface to a belt layer in a buffed tire to recap the tire, and voltages detected by the eddy-current sensor is converted in accordance with a conversion method designated to each of types of belt configuration to compute a real distance of the gauge of the used rubber portion.

Abstract: A tire building apparatus includes a forming drum to which tire constituting members are attached, annular bead setting rings movable in axial directions of the forming drum for grasping beads on their inner circumferential sides and driving the tire beads into predetermined positions on a tire constituting member, and annular turning-up holders movable in the axial directions of the forming drum for turning up parts of the tire constituting member on axially outer sides of bead driven positions about the tire beads with the aid of bladders. The bead setting rings and the turning-up holders are divided into a plurality of arcuate segments circumferentially spaced.

Abstract: A transfer apparatus for transferring a belt-like material such as carcass plies, belt plies, inner liners and the like comprises an awaiting conveyor, a movable conveyor provided on a downstream side of the awaiting conveyor and movable in directions substantially in parallel with a transfer direction of a belt-like material, awaiting transmission provided at a downstream end of the awaiting conveyor and transmitting driving power from the awaiting conveyor to the movable conveyor when the movable conveyor is moved to a rearmost position to be jointed with the awaiting transmission, and centering device for centering in width directions a festoon portion of the belt-like material which is formed in a clearance between the awaiting and movable conveyors when the movable conveyor has moved forward away from the awaiting conveyor.