Injection molded knife guards

Details Injection molded knife guards Injection molded knife guards

A - Human Necessities

01

D

56/146

A01D 34/18 (2006.01)

Patent

CA 1316356

INJECTION MOLDED KNIFE GUARDS ABSTRACT OF THE DISCLOSURE Conventionally, knife guards for reciprocating cutter knives used on cutter-bar type implements are made from cast iron, forged steel, carbon steel, spring steel, malleable iron or steel or high grade alloy steel. Knife guards made of metal are not impact resistant, are not resilient and have a high level of friction between the guard and the cutter bar knives reciprocating therein which not only causes heavy wear to occur but also needs additional power to operate. The present device is injection molded from plastic and in particular, a polyamide resin such as glass filled, super tough nylon or a polyacetal based plastic resin with petroleum based lubricant bonded therewithin and can be formed in one, two or three prong configurations with or without ledger plates.

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