Cutting blade for a trimmer
AssigneeAndreas Stihl AG & Co. KG
InventorsJoachim Hoffmann, Thomas Schweigert, Andreas Schneider
Life of this patent
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Abstract
The present invention relates to a cutting blade for a trimmer. The cutting blade (1) comprises a base body (14) having a central portion (15) as well as end portions (16) adjoining the central portion. Cutting edges (26) are formed on the longitudinal edges (23,24) of the end portions (16), whereby a central fastening opening (21) is provided in the central portion (15) for mounting the cutting blade (11) on a drive shaft. In order to obtain a multiply cutting blade for chopping material, it is provided that the end portions (16) that carry the cutting edges (26) be angled off in the same direction (18) out of the plane (17) of the central portion (15).
Claims10
A cutting blade for a trimmer comprising:
- a base body having a central portion adjoined, in a longitudinal direction, by respective end portions, which have longitudinal edges on which are provided cutting edges, wherein said central portion is provided with a central fastening opening for mounting said cutting blade on a drive shaft, wherein said end portions are angled off in at least two stages, in the same direction, out of a plane of said central portion, wherein each of said end portions forms an angle of about 2-20° with said plane of said central portion, wherein a respective blade end formed on each of said end portions is angled off approximately at right angles to said central portion, wherein an essentially horizontal cutting edge portion of each of said end portions, when viewed in a direction of rotation of said cutting blade, leads an essentially vertical cutting edge portion of said blade end, and wherein said horizontal cutting edge portion extends into a deflector that is formed on said end portion.
A cutting blade for a trimmer comprising:
- a base body having a central portion adjoined, in a longitudinal direction, by respective end portions, which have longitudinal edges on which are provided cutting edges, wherein said central portion is provided with a central fastening opening for mounting said cutting blade on a drive shaft, wherein said end portions are angled off in at least two stages, in the same direction, out of a plane of said central portion, wherein each of said end portions forms an angle of about 2-20° with said plane of said central portion, wherein a respective blade end formed on each of said end portions is angled off approximately at right angles to said central portion, wherein a respective nose-shaped deflector is formed on each end portion, and wherein said deflector projects beyond a path of travel of said blade end.
Dependencies are inferred from the claim text.