Process for producing vibration isolator

Details Process for producing vibration isolator Process for producing vibration isolator

1999-02-01

2000-10-03

Echols, P. W.

Metal working

Method of mechanical manufacture

Spring making

294695, 723542, 72361, 264262, 264266, 2642975, B23P 1300

Patent

active

061255394

ABSTRACT:
A process for producing a vibration isolator. The process involves steps of forming an intermediate product including an axial member, an outside member having a cylinder-shaped portion and a rubber elastic member, and drawing the cylinder-shaped portion with a drawing apparatus provided with a drawing hole at least by pressing the cylinder-shaped portion into the drawing hole. The drawing hole has a predetermined dimensional diameter being smaller than an outer peripheral diameter of the cylinder-shaped portion. Thus, the cylinder-shaped portion is reduced diametrically to plastically deform. The production process can obviate the conventional pressed-in construction in which metallic members contact with each other, can make the manufacture of the vibration isolator easy, and can reduce the manufacturing cost.

REFERENCES:
patent: 2864130 (1958-12-01), Beare
patent: 3281933 (1966-11-01), Fehling
patent: 3754317 (1973-08-01), Taylor
patent: 4961254 (1990-10-01), Andra et al.
Haruhiko Tohara, Rubber Vibration Isolator, Revised Edition, published in Aug., 1975. pp. 49-50 (with Translation of Extract.).

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