Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1989-09-27
1991-04-02
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Assembling or joining
29451, 29525, 295271, B23P 1102
Patent
active
050036840
ABSTRACT:
A method of manufacturing a tubular vibration-insulating bushing including a cylindrical outer tube; a vibration-insulating rubber member disposed within the outer tube, and extending lengthwise along the outer tube, and extending widthwise transversely of the inner tube in such a manner that opposite lateral sides of the rubber member are connected to an inner peripheral surface of the outer tube; and an inner tube embedded in and extending through a central portion of the rubber member in coaxial relation to the outer tube is provided. The method includes the steps of: forming the outer tube from a resilient material; placing the outer tube in a mold in such a manner that the outer tube is resiliently deformed into an oval cross-section; pouring a molding material into the outer tube of an oval cross-section to mold the vibration-insulating rubber member so as to provide the bushing, the rubber member extending widthwise along the greatest diameter of the outer tube of an oval cross-section; subsequently removing the bushing from the mold; and subsequently press-fitting the outer tube into a cross-sectionally circular bore of a holder bracket while deforming the outer tube into a circular cross-section, thereby fixing the outer tube relative to the bracket.
REFERENCES:
patent: 4732492 (1988-03-01), Bonfils
patent: 4750747 (1988-06-01), Holzer
patent: 4846911 (1989-07-01), Tackett et al.
Eley Timothy V.
Toyoda Gosei Co,., Ltd.
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