Patent ID: 7631430

Claim:
A guide bar for chain saws, comprising: a first guide plate having a plurality of first protrusions integrally extending from an outer side thereof, with the first guide plate and the plurality of first protrusions formed as a single piece; a second guide plate having a plurality of second protrusions extending from an outer side thereof, with the second guide plate and the plurality of second protrusions formed as a single piece; and a spacer plate sandwiched between the first and second guide plates, with a groove defined along an outer periphery of the spacer plate and located between the first and second guide plates, wherein the first guide plate has a plurality of first recesses defined in an inner side thereof and the plurality of first recesses are located corresponding to and within the plurality of first protrusions, wherein the second guide plate has a plurality of second recesses defined in an inner side thereof and the plurality of second recesses are located corresponding to and within the plurality of second protrusions.