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US 12,629,811 B2Granted
Power tool
AssigneeNanjing Chervon Industry Co., Ltd.
InventorsZhongquan Xu, Xiangqing Fu, Yang Wang
Life of this patent
Estimating the term…
Abstract
A power tool includes a transmission assembly configured to transmit power between a motor and an output assembly to drive an output shaft to oscillate back and forth; and an adjustment assembly for adjusting the transmission assembly. The adjustment assembly is configured to, when a load of the output shaft satisfies a preset value of the adjustment assembly, control the transmission assembly according to the load of the output shaft so that the transmission assembly adjusts an angle of oscillation of a work attachment.
Claims16
A power tool, comprising:
- a motor comprising a drive shaft rotating around a first axis;
- an output assembly comprising an output shaft centered around an output axis;
- a work attachment driven by the output shaft to oscillate back and forth;
- a transmission assembly configured to transmit power between the motor and the output assembly to drive the output shaft to oscillate back and forth, the transmission assembly comprising a first bearing for supporting the drive shaft, a shift fork for supporting the output shaft, a second bearing for driving the shift fork to oscillate, and an eccentric member comprising a central portion connected to the first bearing and an eccentric portion connected to the second bearing;
- and
- an adjustment assembly for adjusting the transmission assembly wherein the adjustment assembly is configured to, when a load of the output shaft satisfies a preset value of the adjustment assembly, control the transmission assembly according to the load of the output shaft so that the transmission assembly adjusts an angle of oscillation of the work attachment,
- wherein the first bearing comprises a central hole connected to the drive shaft and a first eccentric hole with an eccentric distance from the central hole, a center line of the first eccentric hole is a second axis, and the central portion of the eccentric member is connected to the first eccentric hole.
4 more elements
A power tool, comprising:
- a motor comprising a drive shaft rotating around a first axis;
- an output assembly comprising an output shaft centered around an output axis;
- a work attachment driven by the output shaft to oscillate back and forth;
- an adjustment assembly configured to adjust, according to a load of the output shaft, an angle of oscillation of the work attachment driven by the output shaft;
- and
- a transmission assembly configured to transmit power between the motor and the output assembly to drive the output shaft to oscillate back and forth, wherein the transmission assembly comprises a first bearing for supporting the drive shaft, a shift fork for supporting the output shaft, a second bearing for driving the shift fork to oscillate back and forth, and an eccentric member comprising a central portion connected to the first bearing and an eccentric portion connected to the second bearing,
- wherein the first bearing comprises a central hole connected to the drive shaft and a first eccentric hole with an eccentric distance from the central hole, a center line of the first eccentric hole is a second axis, and the central portion of the eccentric member is connected to the first eccentric hole.
4 more elements
Dependencies are inferred from the claim text.