| 摘要 |
<p>The cup (1) has a magnetic material plate elastically deformable between a first state in which a contact face (39) of the plate and a contact face (29) of an electromagnet located opposite to that of the plate delimit a preset air-gap (45) between the faces and a second state in which the face of the plate is adjusted with that of the electromagnet to remove the air-gap. The plate swings from the first state toward the second state during swinging of the cup from unlocked state to a locked state and from the second state toward the first state during swinging of the cup to the unlocked state.</p> |
