Infusion device for coffee machines and the like

摘要

An infusion device including an infusion chamber formed by portions movable with respect to each other along an opening and closing direction; a first duct for feeding an infusion liquid in the infusion chamber; a second duct for dispensing a food product from the infusion chamber; a pair of oscillating arms movable with respect to at least one of the portions forming the infusion chamber, along the opening and closing direction, and provided with retaining members for retaining a capsule in a space between the first and the second portion of the infusion chamber and for inserting said capsule inside the infusion chamber; divaricating members for causing the reciprocal divarication of the two arms and of the respective retaining members and the release of the capsule inside the infusion chamber; in one of the portions of the infusion chamber, an ejector for ejecting the capsule from the infusion chamber.

主权项

1. An infusion device for preparing a food product from single serving capsules, the device comprising:
an infusion chamber formed by a first portion and a second portion, movable with respect to each other in an opening and closing direction; a first duct for feeding an infusion liquid in the infusion chamber; a second duct for dispensing the food product from the infusion chamber; two oscillating arms movable at least parallel to the opening and closing direction with respect to at least one of the first and second portion of the infusion chamber, and provided with retaining members for retaining a capsule in a space between the first and the second portion of the infusion chamber, when the infusion chamber is open and to insert the capsule inside the infusion chamber; divaricating members for causing reciprocal divarication of the two arms and of the respective retaining members and the release of the capsule inside the infusion chamber; in one of the first and second portion of the infusion chamber, an ejector for ejecting the capsule from the infusion chamber when the infusion cycle is ended; members for temporarily deactivating the retaining members and the two arms when the first and the second portion of the infusion chamber are reciprocally withdrawn, in a deactivated condition the retaining members not interfering with the capsule during at least a part of the opening direction movement of the infusion chamber to eject the used capsule from the infusion chamber when an infusion cycle is ended, wherein the first portion of the infusion chamber is fixed and the second portion of the infusion chamber is movable with respect to a bearing frame, and wherein the two arms are constrained to the second portion of the infusion chamber and movable such that when the second portion of the infusion chamber is moved toward the closing direction, the two arms follow the movement of the second portion of the infusion chamber in a direction parallel to the closing direction until a stop position, passing through a position of release of the capsule in the first portion of the infusion chamber, the infusion chamber being closed through an over travel movement of the second portion of the infusion chamber in the closing direction when the two arms achieved the stop position and stopped movement in the direction parallel to the opening and closing direction.