ROTARY TOOL
First Claim
Patent Images
1. A rotary tool, comprising:
- a motor;
a transmission assembly driven by the motor;
a main shaft driven to rotate by the transmission assembly;
a gearbox for accommodating the transmission assembly;
a housing for accommodating the motor, a portion of the gearbox and a portion of the main shaft;
a quick installing chuck capable of being installed on the main shaft and synchronously rotated with the main shaft;
a clutch assembly for adjusting a torque output by the main shaft; and
a locking assembly for locking the quick installing chuck to the main shaft;
wherein the gearbox comprises a front end portion arranged outside of the housing and having a shaft hole for accommodating the main shaft;
wherein the main shaft has a torque groove in a front end thereof;
wherein the quick installing chuck comprises;
a chuck body;
a transmission shank capable of being inserted in the torque groove of the main shaft; and
a locking bush surrounding the transmission shank and having a locking groove in the outer wall thereof;
wherein the clutch assembly comprises;
a clutch cup arranged to accommodate the front end portion of the gearbox and rotate about the axis of the main shaft;
wherein the locking assembly comprises;
an installing member arranged to accommodate a portion of the locking bush and having at least one positioning hole;
a switching member fixed to the clutch cup; and
a moving member arranged in the positioning hole of the installing member and capable of being partly embedded in the locking groove of the locking bush; and
wherein the installing member is fixedly arranged on the front end portion of the gearbox, and the main shaft passes through the installing member.
2 Assignments
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Accused Products
Abstract
A rotary tool for driving drill bits or screw bits. The rotary tool includes a main body, a main shaft, a chuck, and a locking assembly for locking the chuck at a fixed position relative to the main shaft in the axial direction. The locking assembly is arranged fixedly relative to the main body in the circumferential direction of the main shaft and it has a portion that contacted with the chuck when locking the chuck.
9 Citations
25 Claims
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1. A rotary tool, comprising:
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a motor; a transmission assembly driven by the motor; a main shaft driven to rotate by the transmission assembly; a gearbox for accommodating the transmission assembly; a housing for accommodating the motor, a portion of the gearbox and a portion of the main shaft; a quick installing chuck capable of being installed on the main shaft and synchronously rotated with the main shaft; a clutch assembly for adjusting a torque output by the main shaft; and a locking assembly for locking the quick installing chuck to the main shaft; wherein the gearbox comprises a front end portion arranged outside of the housing and having a shaft hole for accommodating the main shaft; wherein the main shaft has a torque groove in a front end thereof; wherein the quick installing chuck comprises; a chuck body; a transmission shank capable of being inserted in the torque groove of the main shaft; and a locking bush surrounding the transmission shank and having a locking groove in the outer wall thereof; wherein the clutch assembly comprises; a clutch cup arranged to accommodate the front end portion of the gearbox and rotate about the axis of the main shaft; wherein the locking assembly comprises; an installing member arranged to accommodate a portion of the locking bush and having at least one positioning hole; a switching member fixed to the clutch cup; and a moving member arranged in the positioning hole of the installing member and capable of being partly embedded in the locking groove of the locking bush; and wherein the installing member is fixedly arranged on the front end portion of the gearbox, and the main shaft passes through the installing member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A rotary tool, comprising:
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a main body; a main shaft capable of being rotated relatively to the main body; a chuck capable of being rotated with the main shaft; and a locking assembly capable of locking the chuck at a fixed position relative to the main shaft in the axial direction; wherein the locking assembly is arranged fixedly relative to the main body in the circumferential direction of the main shaft and comprises a portion that is contacted with the chuck when the locking assembly is used to lock the chuck. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification