Cutting machine
AssigneeMakita Corporation
InventorsYuto YOSHIDA, Hiroto KOREKAWA, Toshiyuki KANI
Life of this patent
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Abstract
A cutting machine (1) includes a motor shaft (23a) of an electric motor (23), a first intermediate shaft (32) and an output shaft (37). The first intermediate shaft (32) is rotated about its axis by the rotational energy output by the motor shaft (23a). The output shaft (37) is rotated about its axis by the rotational energy output by the first intermediate shaft (32) so as to cause a cutting tool (11) mounted thereon to rotate. The first intermediate shaft (32) includes a cross-section-reduced part (32d). The cross-section-reduced part (32d) has a smaller cross-sectional area, and is easier to undergo elastic deformation, than one or more other portions of the first intermediate shaft (32).
Claims20
A cutting machine comprising:
- a motor having a motor shaft that outputs rotational energy;
- an intermediate shaft that is configured to be rotated about its axis by the rotational energy of the motor shaft;
- and
- an output shaft that is configured to be rotated about its axis by the rotational energy of the intermediate shaft so as to cause a cutting tool mounted thereon to rotate;
- wherein the intermediate shaft includes a cross-section-reduced part having a smaller cross-sectional area than one or more other portions of the intermediate shaft such that the cross-section-reduced part is configured to undergo elastic deformation more easily than the one or more other portions of the intermediate shaft.
Dependencies are inferred from the claim text.