| 摘要 |
The can opener has two support members (10 and 11), a rotatable drive wheel (17) on one of the support members (10) for advancing the opener around a can, a cutting blade (18) on the other member (11), and two handles (13 and 14) for pivoting the support members (10 and 11) between closed and open configurations. The can opener also comprises an over center toggle linkage (15 and 16) so that when the support members are in a closed configuration the support members cannot be moved to an open configuration by a force applied between the drive wheel (17) and the cutting blade (18).
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