Plate-like rotary body with vibration-suppressing characteristics and method of manufacturing same
AssigneeKanefusa Hamono Kogyo Company Limited
InventorYoshihisa Fujiyoshi
Life of this patent
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Abstract
A plate-like rotary body such as a circular saw has zigzag slits formed in the outer peripheral area or spanning the outer and middle peripheral areas such that the resulting protruding sections on both sides of each slit are elongated and deformed within its plane so as to touch the adjacent protruding section from opposite side, thereby providing frictional resistance to suppress vibrations of the body when it rotates. Such slits are preferably formed by a high-energy beam such as a laser beam or an electron beam for efficiency.
Claims19
In an approximately circular plate-like rotary body, the improvement wherein a plurality of zigzag slits are formed in said body in the plane thereof, said zigzag slits each forming two mutually engaging comb-like formations on both sides thereof, each of said comb-like formations having a plurality of tonque-like elongated protruding sections alternating with recesses such that said protruding sections from one of said sides protrude toward and are received by said recesses from the other of said sides, said protruding sections touching adjacent ones of said protruding sections from opposite side whereby friction between said protruding sections from opposite sides suppresses vibrations of said rotary body.
A method of manufacturing a plate-like rotary body with vibration-suppressing characteristics, comprising the steps of
- providing an approximately circular plate-like body with an outer peripheral area and a middle peripheral area,
- cutting zigzag slits in said body in the plane thereof, thereby poducing elongated protruding sections and recesses alternatingly on both sides along each of said slits such that said protruding sections from one of said sides protrude toward and are received by said recesses from the other of said sides, and
- deforming said protruding sections so that adjacent ones of said protruding sections on opposite sides of each said slits touch each other.
Dependencies are inferred from the claim text.