Chain saw with oil removing brake band
AssigneeFirma Andreas Stihl AG & Co.
InventorWalter Merz
Life of this patent
Estimating the term…
Abstract
Disclosed is a portable motorized chain saw, comprising: a chain sprocket; clutch means positioned between the chain sprocket and the drive shaft of the motor for selectively coupling the chain sprocket with the drive shaft, the clutch means including a drum member; and a brake band positioned in contiguous relationship with the outer circumferential surface of the drum member and including one or more oil stripping openings therein.
Claims17
A portable motorized chain saw, comprising:
- a chain sprocket;
- clutch means positioned between the chain sprocket and the drive shaft of the motor for selectively coupling the chain sprocket with the drive shaft, said clutch means including a drum member;
- and
- a brake band comprising an arcuate band of metal positioned in contiguous relationship with the outer circumferential surface of the drum member, and having eyelet means positioned at each end of said band for connecting the band to a brake actuating mechanism, said brake band including a plurality of oil stripping openings spaced one behind the other along the circumference of the brake band which is in contiguous relationship with said drum member, each of said openings comprising a sharpened stripping edge located at the forward edge of the opening in the direction of movement of said drum member and at the surface of the brake band which faces the drum member and opening freely toward the surface of the brake band facing away from the drum member.
A brake band for use in a portable motorized chain saw of the type having a chain sprocket, clutch means positioned between the chain sprocket and the drive shaft of the motor for selectively coupling the chain sprocket with the drive shaft, the clutch means including a drum member about which the brake band is adapted to be positioned in contiguous circumferential relationship, said brake band comprising an arcuate band of metal having therein a plurality of oil stripping openings spaced one behind the other along the circumference of said band which is in contiguous relationship with said drum member, each of at least one of said oil stripping openings comprising a sharpened stripping edge located at the forward edge of the opening in the direction of movement of said drum member and at the surface of the brake band which faces the drum member and opening freely toward the surface of the brake band facing away from the drum member, and eyelet means positioned at each end of said band for connecting the band to a brake activating mechanism.
Dependencies are inferred from the claim text.