Ball-socket grommet
A socket grommet formed from fiber-reinforced material, for attaching a stud pin with a head portion to a bracket, includes a body member; a first supporting member for supporting one side of the head portion; and second supporting members for supporting another side of the head portion. The first supporting member includes a supporting portion on one side of the body member and connecting portions connecting the supporting portion to the body member. Each connecting portion includes a breaking portion having a thickness less than a remaining portion thereof to be breakable upon a predetermined force. Each second supporting member includes a first connecting piece extending from the body member to another side of the body member, and a second connecting piece extending from the first connecting piece to the one side of the body member and having a supporting piece for contacting the another side of the head portion.
1. A grommet adapted to attach a stud pin with a head portion to a bracket, comprising:
a body member adapted to contact the bracket, and having a through-hole at a center thereof;
a first supporting member adapted to support one side of the head portion, including
a supporting portion arranged on one side of the body member, and having an inner surface facing the through-hole of the body member and adapted to contact the one side of the head portion, and
a plurality of connecting portions extending from a periphery of the supporting portion to an inner periphery of the body member and connecting the first supporting member to the body member, the plurality of connecting portions being spaced apart from each other; and
a plurality of second supporting members adapted to support another side of the head portion, each second supporting member including
a first connecting piece extending from the inner periphery of the body member between two adjacent connecting portions to another side of the body member opposite to the one side of the body member in an axial direction of the body member, and
a second connecting piece extending from the first connecting piece to the one side of the body member through the through-hole and having a supporting piece at an end portion thereof, the supporting piece being arranged between the body member and the supporting portion of the first supporting member in the axial direction and adapted to contact the another side of the head portion,
wherein each of the plurality of second supporting members further includes a reinforcing rib protruding outwardly from an outer face of the second connecting piece, and
the body member further includes a plurality of grooves at portions corresponding to the reinforcing ribs, respectively, so that the plurality of grooves receives the plurality of reinforcing ribs when the plurality of second connecting pieces deforms outwardly due to an insertion of the head portion through the through-hole from the another side of the body member.
2. The grommet according to claim 1 , wherein the first supporting member further includes
a flexible portion extending from each connecting portion toward an adjacent second supporting member and having a flexibility to bend inwardly, and
a flange piece protruding outwardly from an outer surface of each flexible portion and adapted to sandwich the bracket with the body member, and
the flexible portion is configured to bend inwardly upon the flange piece abutting an edge of the hole of the bracket.
3. The grommet according to claim 2 , wherein the body member, the first supporting member, and the plurality of second supporting members are formed as one member from fiber-reinforced material.
4. The grommet according to claim 1 , wherein each connecting portion of the first supporting member includes a breaking portion having a thickness less than a remaining portion of the connecting portion.