Automatic pencil sharpener

Details Automatic pencil sharpener Automatic pencil sharpener

2007-07-10

2007-07-10

Self, Shelley (Department: 3725)

Woodworking

Special-work machine

Pencil sharpening

C144S028720

Reexamination Certificate

active

11258291

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.

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