Abstract: A stitcher apparatus for pressing a carcass ply sheet from its outer periphery as to be pressure-bonded onto a rubber sheet member after that the carcass ply sheet is pasted onto the rubber sheet member wound around a building drum, the stitcher apparatus including: a ring-shaped frame; and a plurality of pressure-bond rollers.

Abstract: The invention enables a built band (B) in a cylindrical shape to be easily and surely detached by peeling off the band (B) from being brought into close contact with a drum peripheral face in an expandable and contractable band building drum (D) constituted by two kinds of pluralities of segments (1a) (1b) arranged alternately in a peripheral direction, a diameter of one segment (1a) of two kinds of segments (1a) (1b) is contracted, thereafter, the segment (1a) is temporarily returned to a diameter expanding state, a diameter of other segment (1b) is contracted, thereby, the band (B) is peeled off from being brought into close contact with the drum outer peripheral face, thereafter, the band (B) is detached by bringing both of the segments (1a) (1b) into a diameter contracting state.

Abstract: The invention enables to pressure-bond a carcass ply sheet pasted onto a rubber laminating member wound around a periphery of a building drum firmly along a recessed and projected shape of the rubber laminating member without producing a deformation or a warp of a carcass cord, by using a stitcher apparatus constituted by arranging a plurality of pressure-bond rollers having axis centers in a tangential direction of a concentric circle having a diameter larger than that of a building drum in a peripheral direction by a plurality of rows and by a constant pitch by being respectively supported to be able to progressively displace to an inner side in a diameter direction, while moving the building drum in an axial direction relative to the pressure-bond rollers on an inner side of a circular arrangement of the pressure-bond rollers, a carcass ply sheet is pressed by a predetermined pressure to pressure-bond over an entire periphery and simultaneously by the respective pressure-bond rollers progressively displace

Abstract: The invention enables a built band (B) in a cylindrical shape to be easily and surely detached by peeling off the band (B) from being brought into close contact with a drum peripheral face in an expandable and contractable band building drum (D) constituted by two kinds of pluralities of segments (1a)(1b) arranged alternately in a peripheral direction, a diameter of one segment (1a) of two kinds of segments (1a)(1b) is contracted, thereafter, the segment (1a) is temporarily returned to a diameter expanding state, a diameter of other segment (1b) is contracted, thereby, the band (B) is peeled off from being brought into close contact with the drum outer peripheral face, thereafter, the band (B) is detached by bringing both of the segments (1a)(1b) into a diameter contracting state.

Abstract: The invention is for enabling one piece of rotation driving means 17 to drive to rotate both of an outer side shaft portion 3 of a drum shaft 1 and a screw shaft 4 on an inner side as a driving apparatus 10 of a tire building drum D, including an outer shaft 13 connected to the outer side shaft portion 3, a middle shaft 14 connected to the screw shaft 4, one piece of the rotation driving means 17 connected to the middle shaft 14 by way of a rotation transmitting member 18, and a clutch 26 interposed between the rotation transmitting member 18 connected to the middle shaft 14 and the outer shaft 13, and constituted to transmit rotation of the rotation driving means 17 to both of the middle shaft 14 and the outer shaft 13 in connecting the clutch 26 and transmit the rotation of the rotation driving means 17 only to the middle shaft 14 in cutting the clutch 26.

Abstract: A tire building method and a tire building facility according to the invention attains reduction of an installation space of the tire building facility and substantially equal building cycles for respective building stages to increase building efficiency and facilitate arrangement switching. For attaining these, a step for building a cylindrical carcass band, a subsequent step for building a cylindrical green case, a step for building a cylindrical belt and tread band, a step for combining the green case and the belt and tread band to build the final shape are divided as first through fourth building stages (S1) through (S4) having individual building drums (D1) through (D4) corresponding to the respective steps.

Abstract: The present invention can transfer a belt member on a supply conveyor onto a building drum from an inclined distal end portion while holding on both side edge portions in the width direction thereof and can efficiently adhere the belt member according to the rotation of the building drum. As a means for such building, using a supply conveyor (5) which places the belt member (B1) thereon and a hand device (10) which includes holding members (17a), (17b) having press plates (16a), (16b) extending in the feeding direction of the supply conveyor.

Abstract: The invention can firmly and easily remove a finely divided weft piece without leaving the weft piece by constituting a method and an apparatus of removing weft from a cord fabric for a topping sheet in a calender line for topping rubber on a number of pieces of aligned cords by a calender roll. In the midst of transferring a cord fabric transferred to a calender apparatus, weft is finely divided by passing the cord fabric through weft dividing means, thereafter, a plurality of blades arranged movably in a width direction on an upper face side of the cord fabric are reciprocally moved in the width direction over an entire width thereof to be brought into contact with the cord fabric, and the divided weft piece is wiped off to remove by respectively striking respective cords of the cord fabric by the respective blades.

Abstract: Adhering a belt edge tape to both respective side edge portions of the belt on the outer peripheral surface of the building drum by supplying a belt edge tape toward the outer peripheral surface of the building drum by pressing using an extruder which constitutes a supply device facing the building drum in an opposed manner and by pressing the tape to the building drum using a press roller on a leading side as viewed from a position where the tape is supplied in the rotational direction of the building drum, the building drum is rotated in the direction that end portions of the reinforcing cords on the side edge portion of the belt which constitutes a tape adhering side are positioned on a trailing side in the rotational direction of the building drum thus adhering the tape to the side edge portion.

Abstract: According to the present invention, in adhering a belt edge tape (1) which is interposed between belt layers of a tire, press rollers surely adhere by pressing the belt edge tape (1) to a building drum (D) while preventing the press rollers from being caught by end portions of inclined cords which constitute a belt.

Abstract: The invention can perform building in a process for building a carcass band or a belt/tread band of a tire, in which two drum transfer support bases (10) supporting building drums (D1) are alternately shifted to first and second transfer sections (11), (12), in which predetermined building positions are set, and a rotational transfer device (A) for rotational transfer of the drum transfer support bases (10) is mounted between the first transfer section (11) and the second transfer section (12).

Abstract: An apparatus for jointing of cord fabric performed when cord fabric for topping is alternately drawn from two supply positions for continuous supply. When drawing to supply of the cord fabric on one side, a start end portion of the cord fabric on other side is locked to hold by a locking pin of a jointing holder, and is set to a jointing mounting portion in a state where an unvulcanized jointing rubber member is pasted thereto. When a final end of the cord fabric on the one side comes closer, a finish end portion thereof is pasted to the start end portion of the cord fabric held by the holder by interposing the rubber member therebetween. The finish end portion and the start end portion are squeezed for joint from upper and lower sides by press members. Thereafter, the holder is removed, and the cord fabric on the other side is drawn to supply continuously to the cord fabric on the one side.

Abstract: The invention can perform building in a process for building a carcass band or a belt/tread band of a tire, in which two drum transfer support bases (10) supporting building drums (D1) are alternately shifted to first and second transfer sections (11), (12), in which predetermined building positions are set, a rotational transfer device (A) for rotational transfer of the drum transfer support bases (10) is mounted between the first transfer section (11) and the second transfer section (12), which are arranged to get out of position relative to and in parallel to each other, and two pairs of rotational transfer rails (27a), (28a) are juxtaposed on a rotating table (20), which has an axis (O) intermediate between the both transfer sections, to be positioned corresponding to extensions of travel rails (11a), (12a) arranged on the first and second transfer sections (11), (12) to receive two drum transfer support bases (10), (10), which enter from portions of the rails (11a), (12a) of the both transfer sections (1

Abstract: There is provided a belt member producing method including forming a strip piece 17 of a predetermined width W by cutting a strip material 12 including a plurality of reinforcement cords 11 to a regular size, conveying the strip piece 17 to a transfer conveyor 22 in such a manner that cut sides 19 of the strip piece 17 are in parallel with a traveling direction B of the transfer conveyor 22 and overlapping continuously an integral number Nint of strip pieces 17 on each other on the transfer conveyor 22 in such a manner that the strip pieces 17 are overlapped on each other by an overlapping amount P along non-cut sides 18 thereof, so as to produce a belt member 30 having a desired length equal to a predetermined length L of a belt layer of a pneumatic radial tire, the belt member producing method being characterized by including selecting a desired cutting angle ?pre relative to a traveling direction A of the strip material 17 when the strip material 12 is cut to the regular size, calculating a number Ncal of

Abstract: The invention provides a driving apparatus for a tire building drum which can reduce load when the drum is rotating, which enables stable expanding and contracting operations and in which a center shaft portion (2) of the building drum (D) is made up of a cylindrical outer shaft (3) and an inner threaded shaft (4), the driving apparatus including a cylindrical outer shaft (13) which is coupled to the outer shaft (3), an inner shaft (14) coupled to the threaded shaft (4), a first motor (15) which is a rotational driving means coupled to the outer shaft (13) for rotating the drum, and a second motor (20) which is a rotational driving means coupled to the inner shaft (14) via a clutch (21) in such a manner as to be engaged with and disengaged from the inner shaft for expanding or contracting the drum, wherein by switching the clutch (21), when the drum is rotating, the second motor (20) is held out of engagement with the inner shaft (14), while when the drum is expanded or contracted, the second motor (20) is he

Abstract: A stitcher apparatus for pressing a carcass ply sheet from its outer periphery as to be pressure-bonded onto a rubber sheet member after that the carcass ply sheet is pasted onto the rubber sheet member wound around a building drum, the stitcher apparatus including: a ring-shaped frame; and a plurality of pressure-bond rollers.

Abstract: A method of jointing a cord fabric when the cord fabric for topping is alternately drawn from two supply positions for continuous supply. During drawing to supply of the cord fabric on one side, a start end portion of the cord fabric on other side is locked to hold by a locking pin of a jointing holder, and is set to a jointing mounting portion in a state where an unvulcanized jointing rubber member is pasted thereto. When a final end of the cord fabric on the one side comes closer, a finish end portion thereof is pasted to the start end portion of the cord fabric held by the holder by interposing the rubber member therebetween. The finish end portion and the start end portion are squeezed for joint from upper and lower sides by press members, thereafter, the holder is removed, and the cord fabric on the other side is drawn to supply continuously to the cord fabric on the one side.

Abstract: The invention can firmly and easily remove a finely divided weft piece without leaving the weft piece by constituting a method and an apparatus of removing weft from a cord fabric for a topping sheet in a calender line for topping rubber on a number of pieces of aligned cords by a calender roll. In the midst of transferring a cord fabric (F) transferred to a calender apparatus, weft is finely divided by passing the cord fabric (F) through weft dividing means, thereafter, a plurality of blades (45) arranged movably in a width direction on an upper face side of the cord fabric (F) are reciprocally moved in the width direction over an entire width thereof to be brought into contact with the cord fabric (F), and the divided weft piece (W1) is wiped off to remove by respectively striking respective cords (C) of the cord fabric (F) by the respective blades (45).

Abstract: The invention enables a built band (B) in a cylindrical shape to be easily and surely detached by peeling off the band (B) from being brought into close contact with a drum peripheral face in an expandable and contractable band building drum (D) constituted by two kinds of pluralities of segments (1a) (1b) arranged alternately in a peripheral direction, a diameter of one segment (1a) of two kinds of segments (1a) (1b) is contracted, thereafter, the segment (1a) is temporarily returned to a diameter expanding state, a diameter of other segment (1b) is contracted, thereby, the band (B) is peeled off from being brought into close contact with the drum outer peripheral face, thereafter, the band (B) is detached by bringing both of the segments (1a) (1b) into a diameter contracting state.

Abstract: The invention can perform building in a process for building a carcass band or a belt/tread band of a tire, in which two drum transfer support bases (10) supporting building drums (D1) are alternately shifted to first and second transfer sections (11), (12), in which predetermined building positions are set, a rotational transfer device (A) for rotational transfer of the drum transfer support bases (10) is mounted between the first transfer section (11) and the second transfer section (12), which are arranged to get Out of position relative to and in parallel to each other, and two pairs of rotational transfer rails (27a), (28a) are juxtaposed on a rotating table (20), which has an axis (O) intermediate between the both transfer sections, to be positioned corresponding to extensions of travel rails (11a), (12a) arranged on the first and second transfer sections (11), (12) to receive two drum transfer support bases (10), (10), which enter from portions of the rails (11a), (12a) of the both transfer sections (1