The present invention provides an electric pencil sharpener, and pertains to the field of mechanical technology. It resolves the issue that existing electric pencil sharpeners are unable to be switched off automatically when emptying the shavings debris. The present electric pencil sharpener comprises a housing, and a power receptacle is fixed to the housing. The electric pencil sharpener also comprises a base. The housing is placed on the base, while a power connector is fixed to the base. The power connector is electrically connected to the power receptacle, and a locating structure is arranged between the housing and the base to circumferentially secure the housing and the base. It has the advantages that the power is cut off automatically while the normal service performance is ensured.

The present invention provides an electric pencil sharpener, and pertains to the field of mechanical technology. It resolves the issue that existing electric pencil sharpeners are unable to be switched off automatically when emptying the shavings debris. The present electric pencil sharpener comprises a housing, and a power receptacle is fixed to the housing. The electric pencil sharpener also comprises a base. The housing is placed on the base, while a power connector is fixed to the base. The power connector is electrically connected to the power receptacle, and a locating structure is arranged between the housing and the base to circumferentially secure the housing and the base. It has the advantages that the power is cut off automatically while the normal service performance is ensured.

The present disclosure provides a pencil sharpener for pencils having a lead surrounded by a lead carrier. The pencil sharpener includes a hollow guide channel for the pencil to be sharpened. An inner surface of the guide channel forms a guide surface for a partial area of a lead carrier of the pencil to be sharpened. To prevent contamination of an outer surface of the lead carrier the inner surface of the guide channel is interrupted by at least one cleaning groove extending in an axial direction of the guide channel.

The present disclosure provides a pencil sharpener for pencils having a lead surrounded by a lead carrier. The pencil sharpener includes a hollow guide channel for the pencil to be sharpened. An inner surface of the guide channel forms a guide surface for a partial area of a lead carrier of the pencil to be sharpened. To prevent contamination of an outer surface of the lead carrier the inner surface of the guide channel is interrupted by at least one cleaning groove extending in an axial direction of the guide channel.

A pencil-centering assembly for use in pencil sharpeners or the like that includes a frame; a linking member rotatably mounted within the frame; a plurality of pencil contact levers, wherein each contact lever includes a top portion and a bottom portion, wherein the top portion of each pencil contact lever is adapted to engage the linking member, wherein the bottom portion of each pencil contact lever, in combination with the other pencil contact levers, defines a pencil insertion aperture having a center axis, and wherein the bottom portion of each pencil contact lever extends in to the pencil insertion aperture to about the same distance; and at least one biasing member in contact with the linking member, wherein the biasing member exerts force on each pencil contact lever by way of the linking member sufficient to bias each pencil contact lever toward the center axis of the pencil insertion aperture.

A pencil-centering assembly for use in pencil sharpeners or the like that includes a frame; a linking member rotatably mounted within the frame; a plurality of pencil contact levers, wherein each contact lever includes a top portion and a bottom portion, wherein the top portion of each pencil contact lever is adapted to engage the linking member, wherein the bottom portion of each pencil contact lever, in combination with the other pencil contact levers, defines a pencil insertion aperture having a center axis, and wherein the bottom portion of each pencil contact lever extends in to the pencil insertion aperture to about the same distance; and at least one biasing member in contact with the linking member, wherein the biasing member exerts force on each pencil contact lever by way of the linking member sufficient to bias each pencil contact lever toward the center axis of the pencil insertion aperture.

A gear assembly that includes a cutting gear having an outer edge and an inner edge, wherein a plurality of gear teeth is formed on the outer edge thereof; and an internal gear having an outer edge and an inner edge. The internal gear further includes a plurality of gear teeth formed on the inner edge thereof, wherein the gear teeth formed on the inner edge of the internal gear are adapted to engage the gear teeth formed on the outer edge of the cutting gear; a plurality of troughs, wherein each trough in the plurality of troughs is formed between two of the gear teeth formed on the inner edge of the internal gear; and a plurality of debris discharge channels, wherein each debris discharge channel is formed at the bottommost portion of each trough and extends away from the trough toward the outer edge of the internal gear.

A gear assembly that includes a cutting gear having an outer edge and an inner edge, wherein a plurality of gear teeth is formed on the outer edge thereof; and an internal gear having an outer edge and an inner edge. The internal gear further includes a plurality of gear teeth formed on the inner edge thereof, wherein the gear teeth formed on the inner edge of the internal gear are adapted to engage the gear teeth formed on the outer edge of the cutting gear; a plurality of troughs, wherein each trough in the plurality of troughs is formed between two of the gear teeth formed on the inner edge of the internal gear; and a plurality of debris discharge channels, wherein each debris discharge channel is formed at the bottommost portion of each trough and extends away from the trough toward the outer edge of the internal gear.

The present invention provides an electric pencil sharpener, and pertains to the field of mechanical technology. It resolves the issue that existing electric pencil sharpeners are unable to be switched off automatically when emptying the shavings debris. The present electric pencil sharpener comprises a housing, and a power receptacle is fixed to the housing. The electric pencil sharpener also comprises a base. The housing is placed on the base, while a power connector is fixed to the base. The power connector is electrically connected to the power receptacle, and a locating structure is arranged between the housing and the base to circumferentially secure the housing and the base. It has the advantages that the power is cut off automatically while the normal service performance is ensured.

The present invention provides an electric pencil sharpener, and pertains to the field of mechanical technology. It resolves the issue that existing electric pencil sharpeners are unable to be switched off automatically when emptying the shavings debris. The present electric pencil sharpener comprises a housing, and a power receptacle is fixed to the housing. The electric pencil sharpener also comprises a base. The housing is placed on the base, while a power connector is fixed to the base. The power connector is electrically connected to the power receptacle, and a locating structure is arranged between the housing and the base to circumferentially secure the housing and the base. It has the advantages that the power is cut off automatically while the normal service performance is ensured.