Two-piece hammer for use in a shredder
AssigneeAmerican Magotteaux Corporation
InventorMichael Cesarini
Life of this patent
Estimating the term…
Abstract
A two-piece hammer for use in a shredder comprises a work engaging piece made from a hard, wear resistant material and a supporting piece made from a softer, relatively ductile material having a relatively high tensile strength. The two pieces are secured together by a removable fastener, with a resilient member being interposed between the work engaging piece and a supporting flange of the supporting piece to dampen the transmission of impact forces from the work engaging piece to the supporting piece. The supporting piece comprises an aperture which is adapted to receive a support pin of the shredder when the hammer is mounted in the shredder.
Claims19
A hammer, for use in a shredder, comprising:
- a supporting portion comprising a first end which includes an aperture adapted to receive a support pin of the shredder and a second end which includes a support flange;
- a work engaging portion comprising a plurality of cutting surfaces;
- and
- removable fastener means for removably fastening the work engaging portion to the support flange,
- wherein the work engaging portion is made from a first material and the supporting portion is made from a second material, and wherein the first material is harder than the second material, said first material having a hardness of Rc 48 to Rc 65 and said second material having a hardness of Rc 30 to Rc 40, and a resilient member is interposed between the work engaging portion and the supporting portion so as to dampen an impact of a force transmitted from the work engaging portion to the supporting portion and to help maintain tension on the removable fastener means.
A hammer, for use in a shredder, comprising:
- a supporting portion comprising a first end which includes an aperture adapted to receive a support pin of the shredder and a second end which includes a support flange;
- a work engaging portion;
- removable fastener means for removably fastening the work engaging portion to the support flange;
- and
- a resilient member interposed between the supporting portion and the work engaging portion,
- wherein the resilient member is adapted to dampen an impact load transmitted from the work engaging portion to the supporting portion during an operation of the shredder.
A hammer, for use in a shredder, comprising:
- a supporting portion comprising a first end which includes an aperture adapted to receive a support pin of the shredder and a second end which includes a support flange;
- a work engaging portion;
- and
- removable fastener means for removably fastening the work engaging portion to the support flange,
- wherein the support flange includes a generally planar support face which supports the work engaging portion, and wherein an angle is defined between a plane of the support face and a line extending between a center of the aperture and a center portion of the support face, wherein the angle is between 10 and 25 degrees, and the generally planar support face is substantially perpendicular to the direction of the force of impact during shredding, whereby the force of impact is absorbed by the support face so as to minimize the impact load carried by the removable fastener and substantially maintain the work engaging portion in compression during shredding.
Dependencies are inferred from the claim text.