| 摘要 |
The invention relates to a mixing capsule ( 11 ) for a two-component mixture, comprising a container piece ( 13 ) and an ejection nozzle ( 19 ), formed on the front face ( 17 ) thereof. A piston ( 15 ) may be axially displaced in the container piece ( 13 ). A through opening ( 25 ) is provided in the front face ( 17 ) of the piston, to which a second chamber ( 23 ) is connected. In the unused state of the capsule, a membrane ( 29 ) seals the through opening ( 25 ). The cavity between the front face ( 17 ) of the container piece and the front face ( 31 ) of the piston ( 15 ) defines a first chamber ( 35 ) or a mixing chamber. A moving displacer ( 33 ) is provided in the mixing chamber ( 35 ). The displacer ( 33 ) is displaced by means of an actuating pin ( 37 ) which seals the ejection nozzle ( 19 ) in the unused state. A forced activation device is provided, such that the mixing capsule cannot be unintentionally activated but has to be activated on use. The device is embodied as a sleeve ( 53 ) which can be placed on the mixing capsule which ensures an activation of the mixing capsule on removal. The above is achieved whereby at least one U- or V-shaped guide track ( 57 ) is embodied on the sleeve and the mixing capsule and a guide body ( 63 ) engage in the guide track, such that the sleeve ( 53 ) has to be displaced along the guide track ( 57 ) on application and also in the direction of activation ( 69 ) on removal thereof. In the initial state the sleeve ( 53 ) is located at the end of the guide track ( 57 ). On removal of the sleeve the same forces the activating pin ( 37 ) into the mixing capsule, whereupon the displacer ( 33 ) punctures the membrane ( 29 ) and forces the contents of the second chamber ( 23 ) into the first chamber ( 35 ). |
