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A tube cutter for cutting a circular tube having a central tube axis, the cutter comprising: a housing with first and second parallel rollers defining a cradle for receiving a tube cut with the tube axis generally parallel to the axes of the rollers, a cutter head reciprocally mounted on the housing

A tube cutter for cutting a circular tube having a central tube axis, the cutter comprising: a housing with first and second parallel rollers defining a cradle for receiving a tube cut with the tube axis generally parallel to the axes of the rollers, a cutter head reciprocally mounted on the housing for sliding linearly in a direction toward and away from the rollers, the cutter head having a base and an upstanding arm supporting a cutter wheel rotatable about an axis generally parallel to the axes of the rollers and facing the tube in the cradle, a spring element biasing the cutter wheel in the stated direction and toward the rollers, and a threaded shaft between the housing and cutter head, and rotatable to move the cutter head linearly toward the housing, whereby the cutter wheel engages the tube and the spring element creates a cutting force pushing the cutter wheel against the tube for cutting the tube.

대표청구항 ▼

1. A tube cutter for cutting a circular tube having a tube axis as said cutter is rotated around said tube axis, said cutter comprising: a housing with a cradle for supporting said tube with said tube axis extending in a given direction, a cutting head with a base and an upstanding cutter arm, said

1. A tube cutter for cutting a circular tube having a tube axis as said cutter is rotated around said tube axis, said cutter comprising: a housing with a cradle for supporting said tube with said tube axis extending in a given direction, a cutting head with a base and an upstanding cutter arm, said base and said housing having interacting longitudinal guide elements allowing linear sliding movement of said base on said housing in a direction perpendicular to said given direction and said tube axis, and a cutter wheel carried by said arm on a shaft for rotation about the axis of said shaft and generally parallel with said tube axis, said shaft being movable on said arm in said perpendicular direction, and a spring between said shaft and said arm to bias said cutter wheel toward said cradle and a threaded shaft drawing said cutter head base along said guide elements toward said cradle after a tube is supported in said cradle to deflect said spring and force said cutter wheel against said tube preparatory to rotation of said cutter around said tube, said arm having a terminal bifurcated end defining first and second upright elements on opposite sides of said cutter wheel, each of said elements having an opening for supporting said shaft, said openings being elongated in said perpendicular direction to allow movement of said shaft with respect to said upright elements by said spring, and said spring including two flat spring elements on opposite sides of said cutter wheel.