摘要:
The invention relates to a spiral hex bead (10) and a method of constructing the spiral hex bead (10) with a bead core (12) having a hexagonal cross-sectional shape formed from a single filament of bead core wire (16) continuously wound in at least three layers of successive, superimposed rows (20a, 20b, 20c) each having two or more successive, concentric windings (1-7). The bead core wire (16) has a coating (20) of cured or uncured rubber or elastomeric material. A first annular wrap (14) of bead wrapping wire (26) is helically wound around the bead core (12) in a first direction.
摘要:
The present application is related to a method of forming a tube of reinforced elastomeric material comprising shaping a flat sheet of reinforced elastomeric material having a width equal to the circumference of said tube into a tubular shape, splicing abutting edges of said sheet and cutting said tube into a predetermined band length for application to a tire building drum. An apparatus for carrying out such a method is also described. The application is also related to a method of manufacturing a pneumatic tire.
摘要:
An improved method for mounting an annular tread (1) onto a tire casing (2) is described. The improved method comprises the steps of expanding the tread (1) radially and encircling the expanded tread with a transfer mechanism (30) . The transfer mechanism (30) has a means (90) for holding the lateral edges (5) of the tread (1) in the expanded condition independent of the center (6) of the tread (1) . The means (90) for holding the lateral edges (5) of the tread (1) is accomplished without contacting the radially inner surface (7) of the tread (1) . The transfer mechanism (30) has a means (92) for circumferentially clamping the central portion of the tread (1) to the casing (2) . The transfer mechanism (30) with expanded tread (1) is centered over the casing (2) . The means (92) for clamping the central portion (6) of the tread (1) is actuated while holding the lateral edges (5) of the tread (1 ) in the transfer mechanism (30) . Then the lateral edges (5) of the tread (1) are released from the transfer mechanism (30) thereby transferring the tread (1) to the casing (2) while preventing entrapment of air between the casing (2) and the tread (1) .
摘要:
An improved method for mounting an annular tread (1) onto a tire casing (2) is described. The improved method comprises the steps of expanding the tread (1) radially and encircling the expanded tread with a transfer mechanism (30) . The transfer mechanism (30) has a means (90) for holding the lateral edges (5) of the tread (1) in the expanded condition independent of the center (6) of the tread (1) . The means (90) for holding the lateral edges (5) of the tread (1) is accomplished without contacting the radially inner surface (7) of the tread (1) . The transfer mechanism (30) has a means (92) for circumferentially clamping the central portion of the tread (1) to the casing (2) . The transfer mechanism (30) with expanded tread (1) is centered over the casing (2) . The means (92) for clamping the central portion (6) of the tread (1) is actuated while holding the lateral edges (5) of the tread (1 ) in the transfer mechanism (30) . Then the lateral edges (5) of the tread (1) are released from the transfer mechanism (30) thereby transferring the tread (1) to the casing (2) while preventing entrapment of air between the casing (2) and the tread (1) .
摘要:
A chipper and apex subassembly (100) as an intermediate article of manufacture in a pneumatic tire has an apex strip (30) formed as a continuous elastomeric strip of unvulcanized material having a bottom base portion (31) and two opposing sides (33, 34) extending towards the narrow outer tip (32) and a chipper ply strip (40) reinforced with parallel cords oriented on a bias angle relative to the length of the strip cojoined to the apex (30) along the length of the strips and attached to one side of the unvulcanized apex strips on an outer surface. The chipper (40) is spaced from the bottom base portion (31) of the apex (30) and extends widthwise towards the narrow outer tip (32) to form a subassembly (100) of a chipper (40) and apex (30) as an intermediate article of manufacture. Additionally the subassembly (100) can be attached to a bead core (12) to make a subassembly (200) as a further intermediate article of manufacture.
摘要:
The present invention is directed towards an improved method for delivering a continuous strip material (12) to a spool (4) upon which it is to be wound. The method includes the step of reducing the effective width of the continuous strip material prior to its being wound on the spool (4) by shaping the strip material (12) into an arcuate cross-section. The shaping means is rotatable about an axis (35) parallel with the axis (14) of the spool. The method includes moving the shaping means (32) axis of rotation (35) while winding the strip material (12) on the spool (4) and maintaining the shaping means axis of rotation parallel with the spool.
摘要:
The present invention is directed towards an improved method for delivering a continuous strip material (12) to a spool (4) upon which it is to be wound. The method includes the step of reducing the effective width of the continuous strip material prior to its being wound on the spool (4) by shaping the strip material (12) into an arcuate cross-section. The shaping means is rotatable about an axis (35) parallel with the axis (14) of the spool. The method includes moving the shaping means (32) axis of rotation (35) while winding the strip material (12) on the spool (4) and maintaining the shaping means axis of rotation parallel with the spool.