Plastic boots and method of manufacturing the same

Details Plastic boots and method of manufacturing the same Plastic boots and method of manufacturing the same

F - Mech Eng,Light,Heat,Weapons

16

J

277/7

F16J 15/52 (2006.01) B29C 49/06 (2006.01) F16D 3/84 (2006.01) F16J 3/04 (2006.01)

Patent

CA 1333181

A dust-proof boot made of thermoplastic resin by blow molding and provided at least on one end of a bellows with a stationary ring for fitting on an engaging groove in an attaching shaft and a method of manufacturing the boot. In the boot, an inner circumference base upright wall of the stationary ring is in a substantially vertical disposition, and the inner circumference base upright wall of the stationary ring is connected by a sleeve having inner diameter so that the attaching shaft can be loosely fitted. In the manufacturing of the boot the stationary ring and the sleeve are molded during the parison molding prior or during the mold tightening in the blow molding, and the blow molding is performed while the stationary ring and the sleeve are held between molds. Accordingly, the upright wall of the stationary ring is securely locked in the engaging groove, and the boot having the upright wall of such form can be easily molded by the blow molding.

499103

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