Quick and reliable tool
AssigneeYih Cheng Factory Co., Ltd.
InventorJack Lin
Life of this patent
Estimating the term…
Abstract
A tool includes a chuck connected to a handle. The chuck includes a mandrel including a non-circular cavity defined therein, a slit in communication with the non-circular cavity, a first bore in communication with the non-circular cavity, and a second bore in communication with the slit. A bit with a non-circular profile can be inserted in the non-circular cavity. A flat bit can be inserted in the slit. A ball is located in the first bore. A pin is located in the second bore. A movable sleeve is located around and movable along the mandrel and formed with a thread. A rotary sleeve is rotationally located around the mandrel and formed with a thread engaged with the thread of the movable sleeve. By rotating the rotary sleeve, the movable sleeve pushes the ball into the non-circular cavity and the pin into the slit.
Claims17
A tool including a chuck including:
- a mandrel including a non-circular cavity defined therein for receiving a non-circular bit, a slit in communication with the non-circular cavity, a first bore in communication with the non-circular cavity, and a second bore in communication with the slit, wherein a flat bit can be inserted in the slit;
- a ball located in the first bore;
- a pin located in the second bore;
- a movable sleeve located around and movable along the mandrel and formed with a thread;
- and a rotary sleeve rotationally located around the mandrel and formed with a thread engaged with the thread of the movable sleeve, wherein by rotating the rotary sleeve, the movable sleeve pushes the ball into the non-circular cavity and the pin into the slit.
Dependencies are inferred from the claim text.