CAP OPENING DEVICE.

摘要

A cap opening device wherein a cap is opened or closed by use of a push button. When a push button (5) is pushed in against a restoring elastic force of an elastic force member (4), a forward end (8b) of a push rod member (8) pushes an opening groove (6) disposed at a position close to the push button (5), whereby a cap (3) is rotated about the axis (2) of a hinge connecting portion to be opened. When the push button (5) which has been restored through the restoring elastic force is pushed in again, the forward end (8b) of the push rod member (8) pushes a closing groove (7), whereby the cap (3) is rotated about the axis (2) of the hinge connecting portion to be closed. At this time, an opening-closing switching member (9) switches the forward end (8b) of the push rod member (8) between the opening groove (6) of the cap (3) being in the closed state and the closing groove (7) of the cap (3) being in the opened state due to the opening or closing of the cap (3), whereby the forward end (8b) of the push rod member (8) is engaged with either of the grooves.