Automatic pencil sharpener
AssigneeRingsun (Shenzhen) Industrial Limited
InventorJingyi Hu
Life of this patent
Estimating the term…
Abstract
An automatic pencil sharpener having a motor, a transmission device, a cutter assembly, a feeding device, a feeding reverse mechanism, and a manual reverse mechanism. The feeding device has a pair of feeding rollers for feeding the pencil. The manual reverse mechanism for manually retreating the pencil has a pushing rod and a key switch. The pencil is fed by the feeding device and delivered to the cutter assembly. The cutter assembly processes the pencil. After the pencil is shaved, the feeding reverse mechanism drives the motor to rotate in a reverse direction so as to retreat the pencil from the sharpener. When the pencil is too short to shave and stops in the sharpener, the pencil is retreated from the sharpener by the manual reverse mechanism.
Claims19
An automatic pencil sharpener comprising:
- a motor;
- a transmission device operatively coupled to the motor;
- a cutter assembly operatively coupled to the transmission device and being adapted to shave a front portion of a pencil;
- a feeding device operatively coupled to the transmission device and defining a gap the front portion of the pencil being fed along a feeding path and into the gap so as to be shaved by the cutter assembly;
- a start switch disposed near the gap of the feeding device and being triggered by insertion of the pencil to start the motor;
- and
- a stop switch disposed adjacent to the start switch and along the feeding path, the stop switch stopping the motor in response to a rear portion of the pencil passing by the start switch so as to inhibit the pencil from being jammed in the cutter assembly.
An automatic pencil sharpener comprising:
- an enclosure;
- a motor disposed in the enclosure;
- a transmission device operatively coupled to the motor;
- a cutter assembly operatively coupled to the transmission and being adapted to shave a front portion of a pencil;
- a feeding device operatively coupled to the transmission device and defining a gap, the front portion of the pencil being fed along a feeding path and into the gap so as to be shaved the cutter assembly;
- a feeding reverse mechanism for retreating the pencil from the sharpener;
- and
- a manual reverse mechanism for reversing a direction of rotation for the motor, the manual reverse mechanism having a key switch, at least a portion of the key switch being disposed outside of the enclosure so as to allow a user to manually reverse the direction of rotation for the motor by actuating the exposed portion of the key switch, the pencil retreating from the sharpener when the key switch is actuated.
Dependencies are inferred from the claim text.