Cutting machine and electric work 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. A fan (24) is mounted on the first intermediate shaft (32). The fan (24) is rotatable about its axis with the first intermediate shaft (32) so as to generate a draft that cools the electric motor (23) and 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, the intermediate shaft being separate from but directly or indirectly coupled to the motor shaft;
- 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, the output shaft being separate from but directly or indirectly coupled to the intermediate shaft;
- and
- a fan that is mounted on the intermediate shaft and is configured to be rotated about its axis with the intermediate shaft so as to generate a draft that cools the motor and the intermediate shaft.
An electric work machine comprising:
- a motor having a motor shaft that outputs rotational energy;
- an intermediate shaft that is coaxial with the motor shaft and is configured to be rotated about its axis by the rotational energy of the motor shaft, the intermediate shaft being separate from but directly or indirectly coupled to the motor shaft;
- and
- a fan that is mounted on the intermediate shaft and is configured to be rotated about its axis with the intermediate shaft so as to generate a draft that cools the motor and the intermediate shaft.
Dependencies are inferred from the claim text.