Tire building drum having adjustable axial length

Details Tire building drum having adjustable axial length Tire building drum having adjustable axial length

1996-12-18

1998-05-26

Knable, Geoffrey L.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Tire body building type

156414, B29D 3024

Patent

active

057559228

ABSTRACT:
A tire building drum (1) wherein two coaxial cylindrical half-drums (5) are fitted in sliding manner to a tubular central shaft (2), are moved in opposite directions along the central shaft (2) by a central screw (3), and are connected to each other by a telescopic central body (6) defined by a central tubular element (8) fixed in relation to an intermediate point of the central shaft (2), by two tubular end elements (10) integral with respective half-drums (5), and by at least an intermediate segment (13) interposed between the central tubular element (8) and each tubular end element (10), supported in sliding manner by the central tubular element (8), and movable towards the central tubular element (8) in opposition to a number of springs (23) and by virtue of the relative tubular end element (10).

REFERENCES:
patent: 3188260 (1965-06-01), Nebout
patent: 3510375 (1970-05-01), Batten
patent: 4138307 (1979-02-01), Rost
patent: 4206010 (1980-06-01), Gutnecht
patent: 4402783 (1983-09-01), Enders
patent: 5310328 (1994-05-01), Imai et al.
patent: 5490897 (1996-02-01), Miyanaga et al.

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