| 摘要 |
A receptacle holding unit (1) for a device for preparing a beverage from an ingredient contained in a receptacle comprises: a first part (10) and a second part (20) cooperating with the first part; a cavity (11′) for receiving such receptacle, the cavity being delimited by at least one of the first and second parts; and a driving device (30) for relatively moving the second part towards the first part into a closed position for securing such receptacle in the cavity and relatively apart from the first part into an open position for inserting of the receptacle into the cavity. The driving device has an actuator (31) and a transmission (22, 32; 22′, 32′) that has a helicoidal ramp arrangement (32,32′) cooperating with a connector member (22,22′) for converting a translational movement into a rotational movement or vice versa. The ramp arrangement is mounted to the first part and the connector member is mounted to the second part so that, when the actuator actuates the transmission, the first and second parts are driven together or apart by the ramp arrangement cooperating with the connector member. The ramp arrangement has a first portion (321) with a smaller slope and a second portion (322) with a greater slope for adjusting a transmission speed and force between the ramp arrangement and the connector member to adjust a resulting speed and force of the first and second parts moving between their open and closed positions. |
