Extraction module with linear closure for the pressurised preparation of a drink from a capsule

Extraction module for extraction, under pressure, for the preparation of a beverage from a capsule containing a substance to be extracted, comprising:

• extraction means comprising a first extraction sub-assembly and a second extraction sub-assembly that can move in closure against the first sub-assembly so as to form, in a closed position, an extraction chamber enclosing the capsule in a closure plane, and so as, in an open position, to maintain a sufficient space between the two sub-assemblies to allow the capsule to be inserted between the two sub-assemblies,
• a means for holding and positioning the capsule between the two sub-assemblies, partially closing the sufficient space to hold the capsule between the two sub-assemblies;
• the holding and positioning means having the ability to be moved coaxially to a linear displacement of the movable extraction sub-assembly and can be pushed back linearly by the second, movable sub-assembly into a retracted position, allowing the two sub-assemblies to close around the capsule.