Damien Bosser, Le Cellier, France; and Anthony Mahe, Le Cellier, France.
Assigned to Aplix, Le Cellier, France.

Filed: 4/28/17
Issued: 6/15/21

A retaining device comprising: a base extending in a longitudinal direction and presenting a top face and a bottom face; a plurality of retaining elements extending from the top face of the base, each of the retaining elements being formed by a stem surmounted by a head, the stem having a bottom end connected to the base, and a top end opposite from the bottom end, the head surmounting the top end of the stem, and having a bottom face facing towards the base and a top face opposite from the bottom face; the base presenting a thickness lying in the range 10 .mu.m to 700 .mu.m, where the thickness is the distance between the top face and the bottom face; and the top face of the head of each retaining element including a rib; the device being characterized in that the head of each retaining element includes at least one catch portion extending radially relative to the top end of the stem, said at least one catch portion including a rib which extends on the top end of the stem, over the at least one catch portion, wherein the at least one catch portion has a width and a length, and the rib has a width and a length, wherein the length of the rib is greater than the width of the rib, the respective widths of the at least one catch portion and the rib each being measured with respect to the longitudinal direction, the respective lengths of the at least one catch portion and the rib each being length being measured with respect to a transverse direction that is orthogonal to the longitudinal direction, the width of the at least one catch portion being greater than the width of the rib, and wherein the longitudinal direction and the transverse direction are orthogonal to a vertical direction extending from the bottom end of the stem toward the top end of the stem. 

A retaining device comprising: a base extending in a longitudinal direction and presenting a top face and a bottom face; a plurality of retaining elements extending from the top face of the base, each of the retaining elements being formed by a stem surmounted by a head, the stem having a bottom end connected to the base, and a top end opposite from the bottom end, the head surmounting the top end of the stem, and having a bottom face facing towards the base and a top face opposite from the bottom face; the base presenting a thickness lying in the range 10 .mu.m to 700 .mu.m, where the thickness is the distance between the top face and the bottom face; and the top face of the head of each retaining element including a rib; the device being characterized in that the head of each retaining element includes at least one catch portion extending radially relative to the top end of the stem, said at least one catch portion including a rib which extends on the top end of the stem, over the at least one catch portion, wherein the head further includes a transverse rib extending between two opposite ends on either side of an axis extending along the longitudinal direction, the transverse rib extending over the top end of the stem. 

A retaining device comprising: a base extending in a longitudinal direction and presenting a top face and a bottom face; a plurality of retaining elements extending from the top face of the base, each of the retaining elements being formed by a stem surmounted by a head, the stem having a bottom end connected to the base, and a top end opposite from the bottom end, the head surmounting the top end of the stem, and having a bottom face facing towards the base and a top face opposite from the bottom face; the base presenting a thickness lying in the range 10 .mu.m to 700 .mu.m, where the thickness is the distance between the top face and the bottom face; and the top face of the head of each retaining element including a rib; the device being characterized in that the head of each retaining element includes at least one catch portion extending radially relative to the top end of the stem, said at least one catch portion including a rib which extends on the top end of the stem, over the at least one catch portion, wherein the length of at least one rib in a direction transverse to the longitudinal direction of the base is greater than the diameter of the stem in a direction perpendicular to the longitudinal direction of the base.