| 摘要 |
A rugged, heavy duty, industrial-type hand held can opener tool is provided with a male drive formation to which a battery operated power drill or the like may be connected so the tool may be held in one hand, and may be operated by a power tool held in the other hand. When two pivotally connected handles of the can opener close toward each other, a cutting formation carried on one handle and a toothed drive wheel carried on the other handle grip the can. As the handles close, the cutting formation punctures the lid of the can adjacent the rim of the can. As the drive wheel rotates causing the can to turn, the cutting formation smoothly circumferentially severs the lid from the rim. The severed lid and the burr-free de-lidded can fall free when the handles are opened. |
| 主权项 |
1. A hand held can opener designed to be compressively gripped in one hand to cause the can opener, in turn, to grip a metal can and to circumferentially sever a lid from the gripped can while a portable power tool that is drivingly connected to the can opener is held in an opposite hand to operate the can opener, with the can opener comprising:
a) first and second elongate handle formations having portions that overlie each other and are pivotally connected for angular movement about a first transversely extending axis between a closed position wherein lengthy portions of the handle formations are relatively narrowly spaced and cooperate to assume substantially a relatively narrow V-shaped formation, and an opened position wherein the lengthy portions are more widely spaced and cooperate to assume a relatively wider V-shaped formation; b) a drive shaft extending through a hole defined by the first elongate handle formation at a location relatively near to the location of the pivotal connection of the first and second handle formations, with the drive shaft being rotatable relative to the first elongate handle formation about a second transversely extending axis that substantially parallels the first transversely extending axis, and having opposed end regions located on opposite sides of the first elongate handle formation; c) a toothed drive wheel mounted on the drive shaft near one of the opposed end regions, and configured to be pressed against to drivingly engage a circumferentially extending rim of a can having a lid that is to be severed from the can; d) a drive formation defined by the other of the opposed end regions of the drive shaft, and being rotatable by a portable power tool connected thereto to cause the toothed drive wheel to turn; and, e) a cutting formation carried by the second elongate handle formation at a location where the cutting formation is movable toward and away from the toothed drive wheel when the second elongate handle formation is pivoted toward and away from the first elongate handle formation, respectively, and being configured to puncture a peripheral region of a can lid when a can is grasped between the toothed wheel and the puncture formation when the first and second handle formations are pivoted to the closed position, and to cut around a circumference of the lid when the drive formation is turned by a portable power tool to thereby sever the lid from the can. |
