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US 2016/0207187 A1Published application
Drilling Device
AssigneeHitachi Koki Co., Ltd.
InventorsTomomasa Nishikawa, Chikai Yoshimizu, Nobuhiro Takano
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Abstract
A drilling device capable of easily pulling an end bit out of a workpiece is provided. The drilling device is provided with a housing, a brushless motor, a motion translating mechanism, and an output portion. The motion translating mechanism includes a rotation transmitting portion. The rotation transmitting portion includes a bevel gear and clutch. The bevel gear has an abutment portion. The clutches has an abutted portion. Rotational play is formed between the abutment portion and the abutted portion.
Claims10
A drilling device comprising:
- a housing;
- a motor provided in the housing and rotatable in forward direction and reverse direction, the forward rotation and the reverse rotation being repeatedly performed in case of forward/reverse mode;
- and
- a rotary motion transmitting portion configured to transmit a rotational force of the motor to an end bit, the rotary motion transmitting portion comprising:
- a rotary member rotationally driven by the motor;
- an abutment portion provided at the rotary member and rotatable together with the rotary member;
- and
- an abutted portion rotationally driven upon abutment with the abutment portion during repetition of the forward rotation and the reverse rotation of the motor in the forward/reverse mode.
5 more elements
Dependencies are inferred from the claim text.