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US 2026/0273713 A1Published application
Driving tool
AssigneeMakita Corporation
InventorsNobuyuki HOSHIYAMA, Masaya NAGAO
Life of this patent
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Abstract
An electric driving tool includes a gear housing that houses a reduction gear train and a main body housing that houses the gear housing. A first bearing supporting the lower portion of a motor shaft is directly held by the main body housing. A bearing holder holds a second bearing supporting the upper portion of the motor shaft that is supported by both the gear housing and the main body housing. This configuration suppresses motor shaft misalignment, reduces core rubbing, and lowers weight by eliminating a motor housing.
Claims20
A driving tool comprising:
- an electric motor including a stator, a rotor, and a motor shaft;
- a driver configured to drive a driving member in a driving direction;
- a lift mechanism configured to move the driver in a direction opposite to the driving direction;
- a reduction gear train configured to reduce an output of the electric motor and transmits the output of the electric motor to the lift mechanism;
- a gear housing that houses the reduction gear train;
- a main body housing that houses the gear housing;
- a first bearing that is directly held in the main body housing, the first bearing supporting a first portion of the motor shaft;
- and
- a bearing holder that holds a second bearing supporting a second portion of the motor shaft, the bearing holder engaging the gear housing.
6 more elements
Dependencies are inferred from the claim text.