Flat chisel
OwnerMarco Lang, Franc Koljaka +1inventors
InventorsMarco Lang, Franc Koljaka, Cristian Falchetti
Life of this patent
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Abstract
The invention relates to a flat chisel (2), in particular an insertion chisel for power-driven rotary hammers for working stone, having a chisel head (3) which has a main lip (7) disposed transversely to a chisel longitudinal axis (x), a front and a rear striking face (10, 11), and at least one side face (12, 13) connecting the striking face (10, 11). In this case, an approximately concave and/or convex and/or bent and/or undulating profile of at least one lip (7, 14, 15) is provided.
Claims7
Flat chisel (2), in particular an insertion chisel for power-driven rotary hammers for working stone, having a chisel head (3) which has a main lip (7) disposed approximately transversely to a chisel longitudinal axis (x), a front and a rear striking face (10, 11), and at least one side face (12, 13) connecting the striking face (10, 11), characterized in that the main lip (7) and/or a side face (12, 13) designed as a side lip (14, 15) has an approximately concave and/or convex and/or bent and/or undulating profile.
Flat chisel according to one of the preceding claims, characterized in that the main lip (7) and the side lip (14, 15) have cutting edges (20, 17, 18) which lie in a common plane (E).
Flat chisel according to one of the preceding claims, characterized in that the main lip (7) and/or the side lip (14, 15) are designed to be gable-shaped (22) and/or ramp-shaped (24) in cross section.
Flat chisel according to claim 5, characterized in that the main lip (7) runs so as to be bent in a U shape toward the chisel shank (4).
Dependencies are inferred from the claim text.