Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Tire body building type
Patent
1993-10-15
1995-10-17
Knable, Geoffrey L.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Tire body building type
156 96, 156500, 156909, 425 17, B29D 3056
Patent
active
054587271
ABSTRACT:
A tire retreading device has a tread feeding device for feeding the tread to a tire casing and an extruder for extruding a cushion gum layer onto the tire casing. The extruder has a first and a second lip defining the extrusion die. The first lip, positioned behind the second lip in the direction of rotation of the tire casing, projects in a direction toward the tire casing relative to the second lip. The first lip is an applicator shoe that is pressed under prestress against the tire casing so as to deform the tire casing. With the retreading device a cushion gum layer is applied to the tire casing and during the application the applicator shoe is pressed against the tire casing with such a pressing force that a radius of curvature of the tire casing conforms to a radius of curvature of the applicator shoe. With this measure, depressions in the surface of the tire casing are filled with excess cushion gum.
REFERENCES:
patent: 2405802 (1946-08-01), Taber
patent: 3808076 (1974-04-01), Barwell
patent: 5162070 (1992-11-01), Meyer
A-Z Formen- und Maschinenbau GmbH
Knable Geoffrey L.
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