Cutting tool and method of assembling cutting tool
AssigneeMitsubishi Heavy Industries Compressor Corporation
InventorsHiroki Takagi, Yoshiki Tazawa
Life of this patent
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Abstract
A cutting tool comprises a shank having an insertion portion protruding from a shank main body, a head in which an insertion hole into which the insertion portion is inserted is formed, and a spacer disposed in a gap between the shank main body and the head. The insertion portion has a tapered outer circumferential surface which gradually decreases in diameter from the other side toward one side in the axial direction. The insertion hole has a tapered inner circumferential surface coming into surface contact with the tapered outer circumferential surface. A head end surface of the head which faces the other side in the axial direction comes into surface contact with a surface facing one side in the axial direction of the spacer.
Claims8
A cutting tool comprising:
- a shank which has a shank main body extending along an axis, and an insertion portion protruding from the shank main body toward one side in a direction of the axis;
- a head in which the insertion portion is able to be inserted and an insertion hole having a length in the direction of the axis shorter than the insertion portion is formed;
- and
- a spacer disposed between the shank main body and the head,
- wherein the insertion portion has:
- a male screw portion in which a male screw is formed on an outer circumferential surface in a distal end portion including an end portion on the one side in the direction of the axis, and
- a tapered outer circumferential portion in which a tapered outer circumferential surface which gradually decreases in diameter from the other side toward the one side in the direction of the axis is formed in a region on the other side in the direction of the axis with respect to the male screw portion,
- the insertion hole has:
- a female screw meshing with the male screw in a region including an end portion on the one side in the direction of the axis on an inner surface, and
- a tapered inner circumferential surface which gradually decreases in diameter from the other side toward the one side in the direction of the axis and comes into surface contact with the tapered outer circumferential surface, in a region on the other side in the direction of the axis with respect to the female screw on the inner surface, and,
- a head end surface of the head which is an end surface facing the other side in the direction of the axis comes into surface contact with a surface of the spacer facing the one side in the direction of the axis.
Dependencies are inferred from the claim text.