| 摘要 |
A can opener comprising an electric motor (2) driving in rotation a shaft (4) carrying a roller (7), as well as a cutting blade (9), the shaft being mounted both rotatably and axially movably by a bidirectional drive mechanism comprising a compression spring (14) and a device for reversing the direction of rotation of the shaft comprising two electrical switches, a start switch (16) and a stop switch (17), which are mounted in the supply circuit of the motor. The spring (14) comprises two portions, a cylindrical portion (19) with touching turns and a truncated conical portion (21) whose turns do not touch and of which a free end (22) is adapted to come, either into abutment against a finger (23) provided on a wall (6) of the casing (1), or to bear against the stop switch (17), so as to cut the feed to the motor.
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