Plate member shearing apparatus, method for shearing plate member, and sheared piece of plate member
AssigneeShowa Denko K.K.
InventorsMasayuki Tsukahara, Atsuo Ohashi
Life of this patent
Estimating the term…
Abstract
A shearing apparatus (1) for shearing a plate member (2) is provided with a pair of shearing rollers (20, 20) opposed with each other. These shearing rollers (20, 20) are rotated in opposite directions in a state that the plate member (2) in pinched by and between peripheral surfaces of these shearing rollers (20,20). These shearing rollers (20, 20) are provided with at least one pair of shearing portions (21, 21) to be engaged with each other to shear the plate member (2). These shearing portions (21, 21) are formed on the peripheral surfaces and extend in an axial direction of the roller (20, 20).
Claims18
A shearing apparatus for shearing a plate member, comprising:
- a pair of shearing rollers configured to shear a plate member into a predetermined length while passing the plate member between said pair of shearing rollers,
- wherein said pair of shearing rollers are rotated in opposite directions in a state that the plate member is pinched by and between said pair of shearing rollers,
- wherein said pair of shearing rollers include plural pairs of shearing portions to be engaged with each other to shear the plate member, said plural pairs of shearing portions being formed on peripheral surfaces of said pair of shearing rollers and extending in an axial direction of each of said pair of shearing rollers,
- wherein each of said pair of shearing rollers is constituted by a plurality of divided members formed by dividing a generally cylindrical member with a dividing surface passing an axis of the columnar member and integrally assembled overlapping with each other with said plurality of divided members shifted in a radial direction thereof, whereby each of said pair of shearing rollers is provided with a plurality of stepped portions each extending in said axial direction on said peripheral surface and arranged at intervals in a peripheral direction thereof, and
- wherein a rising face and a protruded edge of said stepped portion constitute a shearing face and a shearing edge, respectively.
A method of shearing a plate member, comprising:
- preparing a shearing apparatus equipped with a pair of shearing rollers, said pair of shearing rollers including plural pairs of shearing portions to be engaged with each other, said plural pairs of shearing portions being formed on peripheral surfaces of said pair of shearing rollers and extending in an axial direction of each of said pair of shearing rollers,
- wherein each of said pair of shearing rollers is constituted by a plurality of divided members formed by dividing a generally cylindrical member with a dividing surface passing an axis of the columnar member and integrally assembled overlapping with each other with said plurality of divided members shifted in a radial direction thereof, whereby each of said pair of shearing rollers is provided with a plurality of stepped portions each extending in said axial direction on said peripheral surface and arranged at intervals in a peripheral direction thereof, and
- wherein a rising face and a protruded edge of said stepped portion constitute a shearing face and a shearing edge, respectively;
- and
- shearing the plate member by engaging said plural pairs of shearing portions in a state that the plate member is pinched by and between said pair of shearing rollers rotating in opposite directions.
Dependencies are inferred from the claim text.