| 摘要 |
The invention is concerned with a device for opening a shell fish of the type having two shell halves normally held closed against each other by a muscle. The device of the invention comprises means for supporting the shell fish with one shell half resting substantially flat on the support means, means on the support means for providing an abutment for the shell fish, and link means pivotally connected to the abutment means so as to permit pivotal movement of a free end portion of the link means toward and away from the support means. The device further includes lever means pivotally mounted intermediate the ends thereof to the free end portion of the link means so as to permit pivotal movement of one end of the lever means toward and away from the abutment means, and wedge means hinged to the other end of the lever means and adapted to contact the shell fish at the edge defined between the shell halves substantially opposite the abutment means. Movement of the aforesaid one end of the lever means in a direction away from the abutment means forces the wedge means to penetrate between the shell halves and thereby separate the shell halves to open the shell fish sufficiently to cause rupture of the muscle.
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