Pressure element and sealing device for a packaging assembly having a pressure element

Countersealing member of a sealing device configured to seal a tube of packaging material adapted to be filled with a pourable product, the countersealing member facing, in use, a sealing member of the sealing device with interposition of the tube and being configured to be pressed against the sealing member to seal the tube therebetween, the countersealing member comprising:

• at least one pressure element including a fitting portion fitted to the countersealing member at a groove thereof and a contact portion opposite to the fitting portion and defining a contact surface facing, in use, the sealing member and configured to interact with a sealing element of the sealing member to press and seal the tube therebetween;
• the pressure element comprising at least one engagement element in cooperation with a complementary engagement element carried by the countersealing member, the at least one engagement element of the pressure element allowing the pressure element to be fitted into the groove of the countersealing member according to a predetermined orientation while also preventing fitting of the pressure element into the groove of the countersealing member in any other orientation different from the predetermined orientation;
• the at least one engagement element of the pressure element that is in cooperation with the complementary engagement element carried by the countersealing member being distinct from the fitting portion and the contact portion;
• the pressure element having an elongated shape that extends along a first direction from one free end of the pressure element to an opposite free end of the pressure element;
• and
• the at least one engagement element of the pressure element being an inclined surface that is inclined with respect to a plane orthogonal to the first direction, and the complementary engagement element carried by the countersealing member being correspondingly inclined with respect to said plane and being configured to cooperate in contact with the inclined surface of the at least one engagement element to guide the pressure element during fitting of the pressure element according to the predetermined orientation into the groove of the countersealing member.

Countersealing member of a sealing device configured to seal a tube of packaging material adapted to be filled with a pourable product, the countersealing member being elongated and having a front surface that faces, in use, a sealing member of the sealing device with interposition of the tube and being configured to be pressed against the sealing member to seal the tube therebetween, the countersealing member comprising:

• a groove formed in the countersealing member, extending from the front surface of the countersealing member to a bottom of the groove;
• an elongated pressure element extending in a first direction from one free end of the elongated pressure element to an opposite free end of the elongated pressure element, the elongated pressure element including an elongated fitting portion positioned in the groove and an elongated contact portion opposite to the fitting portion and defining a contact surface facing, in use, the sealing member and configured to interact with a sealing element of the sealing member to press and seal the tube therebetween, the elongated pressure element also including an undersurface that faces away from the contact surface and that at least in part contacts the front surface of the countersealing member;
• the pressure element comprising an engagement element that has a configuration complementary to an engagement element that is carried by the countersealing member, the engagement element of the pressure element cooperating with the engagement element carried by the countersealing member to ensure the pressure element is fitted properly to the countersealing member according to its predetermined orientation only while also preventing the pressure element from being fitted to the countersealing member in any other orientation different from the predetermined orientation;
• and
• the engagement element of the pressure element that is in cooperation with the engagement element carried by the countersealing member being distinct from the fitting portion and from the contact portion, and being different from the undersurface of the elongated pressure element.

Pressure element for a sealing device having a sealing member and a countersealing member facing one another and configured to be pressed against one another to seal therebetween a tube of packaging material adapted to be filled with a pourable product, the pressure element comprising:

• a fitting portion configured to be fitted to the countersealing member and a contact portion defining a contact surface facing, in use, the sealing member and configured to interact with a sealing element of the sealing member to press and seal the tube therebetween;
• the pressure element also comprising at least one engagement element configured to cooperate with a complementary engagement element carried by the countersealing member to guide the pressure element according to a predetermined orientation during fitting of the pressure element to the countersealing member and to prevent fitting of the pressure element to the countersealing member in any other orientation different from the predetermined orientation, the at least one engagement element of the pressure element that is configured to cooperate with the complementary engagement element carried by the countersealing member being distinct from the fitting portion and the contact portion;
• the at least one engagement element of the pressure element including a shaped portion configured to cooperate in contact with a guide wall defined by the complementary engagement element carried by the countersealing member at least during fitting of the pressure element to the countersealing member;
• the pressure element having an elongated shape that extends along a first direction from one free end of the pressure element to an opposite free end of the pressure element;
• and
• the shaped portion of the pressure element having an inclined surface inclined with respect to a plane orthogonal to the first direction and configured to cooperate in contact with a correspondingly inclined wall defined by the guide wall to guide the pressure element according to the predetermined orientation during fitting of the pressure element to the countersealing member.