초록 ▼

A molded metal insert and plastic part integrally formed therewith form an assembly wherein the insert is provided with anti-rotation, die-cast teeth. The insert is adapted to attach and fix the plastic part to a vehicle structure in combination with a threaded fastener. The insert includes a cylind

A molded metal insert and plastic part integrally formed therewith form an assembly wherein the insert is provided with anti-rotation, die-cast teeth. The insert is adapted to attach and fix the plastic part to a vehicle structure in combination with a threaded fastener. The insert includes a cylindrical metal body having inner and outer diameters and upper and lower end portions. The inner diameter defines a passageway sized to allow an externally threaded portion of the fastener to extend through the passage and below the lower end portion for threaded attachment to the vehicle structure. The upper end portion provides a seat for a head of the fastener. The anti-rotation metal teeth are integrally molded with and extend radially outwardly from the cylindrical metal body between the inner and outer diameters and between the upper and lower end portions wherein the upper and lower end portions protect the teeth. A die-casting mold for forming the insert is also provided.

대표청구항 ▼

1. A molded metal insert adapted to attach and fix a plastic part to a vehicle structure, the insert comprising: a cylindrical molded metal body having inner and outer diameters and upper and lower molded end portions, the upper and lower end portions collectively defining the outer diameter, each e

1. A molded metal insert adapted to attach and fix a plastic part to a vehicle structure, the insert comprising: a cylindrical molded metal body having inner and outer diameters and upper and lower molded end portions, the upper and lower end portions collectively defining the outer diameter, each end portion being continuous about a circular periphery, the inner diameter defining a passageway sized to allow a threaded portion of a fastener to extend through the passageway and below the lower end portion for threaded attachment to the vehicle structure, the upper end portion providing a seat for a head of the fastener; anda plurality of anti-rotation metal teeth integrally molded with and extending radially outwardly from the cylindrical metal body between the inner and outer diameters and integrally molded with and extending linearly between the upper and lower end portions wherein the insert has an irregular tooth distribution and the teeth are sized and sides of the teeth are oriented or shaped to permit the insert to be die cast in a cavity formed between first and second parts meeting at a plane of a two-part mold without breaking the teeth during movement of the first part in a first direction perpendicular to the plane and movement of the second part in a second direction opposite the first direction perpendicular to the plane during opening of the mold and wherein each tooth adjacent to but spaced from the plane has first and second side surfaces wherein each of the first side surfaces is substantially perpendicular to the plane so that none of the adjacent teeth break during opening of the mold and wherein each of the teeth extends linearly in a direction perpendicular to the first and second directions the entire distance between the upper and lower portions of the metal body. 2. The insert as claimed in claim 1, wherein the teeth do not radially extend beyond the outer diameter and wherein the upper and lower end portions protect the teeth. 3. The insert as claimed in claim 1, wherein the plastic part comprises a plastic housing having a plastic flange to receive and retain the insert at the teeth between the upper and lower end portions. 4. The insert as claimed in claim 3, wherein the plastic housing comprises an electric box housing. 5. The insert as claimed in claim 1, wherein the vehicle structure comprises a battery support located within an engine compartment of the vehicle. 6. A die-casting mold for making the molded metal insert of claim 1. 7. The mold as claimed in claim 6, wherein the mold is a two-part mold and the wherein the teeth are sized and shaped to permit the insert to be die cast in the mold without breaking the teeth during opening of the mold. 8. The mold as claimed in claim 6, wherein the teeth do not radially extend beyond the outer diameter so that the upper and lower portions protect the teeth. 9. A molding assembly for attachment to a vehicle structure, the assembly comprising: a plastic part, and a metal insert integrally formed with the plastic part, the insert including: a cylindrical molded metal body having a circular cross-section with inner and outer diameters and upper and lower molded end portions, each end portion being continuous about a circular periphery, the inner diameter defining a passageway sized to allow a threaded portion of a fastener to extend through the passageway and below the lower end portion for threaded attachment to the vehicle structure, the upper end portion providing a seat for a head of the fastener; anda plurality of anti-rotation metal teeth integrally molded with and extending radially outwardly from the cylindrical metal body between the inner and outer diameters and integrally molded with and extending linearly between the upper and lower end portions wherein the insert has an irregular tooth distribution and the teeth are sized and the sides of the teeth are oriented or shaped to permit the insert to be die cast in a cavity formed between first and second parts meeting at a plane of a two-part mold without breaking the teeth during movement of the first part in a first direction perpendicular to the plane and movement of a second part in a second direction opposite the first direction and perpendicular to the plane during opening of the mold and wherein an array of non-symmetrical first teeth formed adjacent to but spaced from the plane, each first tooth having first and second side surfaces wherein each of the first side surfaces is substantially perpendicular to the plane so that none of the adjacent teeth break during opening of the mold and wherein each of the teeth extends linearly in a direction perpendicular to the first and second directions the entire distance between the upper and lower portions of the metal body. 10. The assembly as claimed in claim 9, wherein the teeth do not radially extend beyond the outer diameter and wherein the upper and lower end portions protect the teeth. 11. The assembly as claimed in claim 9, wherein the plastic part comprises a plastic housing having a plastic flange to receive and retain the insert at the teeth between the upper and lower end portions. 12. The assembly as claimed in claim 11, wherein the plastic housing comprises an electric box housing. 13. The assembly as claimed in claim 9, wherein the vehicle structure comprises a battery support located within an engine compartment of the vehicle. 14. The assembly as claimed in claim 9, wherein the teeth further comprise an array of non-symmetrical second teeth formed adjacent to but spaced from the first teeth, each second tooth having a first side surface that is generally parallel to and offset inward from the first side surface of an adjacent first tooth. 15. The assembly as claimed in claim 14, wherein the teeth are disposed along a complete circumference of the body. 16. The assembly as claimed in claim 9, wherein the teeth further comprise a pair of symmetrical planar teeth oriented diametrically opposite from each other and along the plane. 17. The assembly as claimed in claim 16, wherein the plane bisects the body at the planar teeth into a pair of symmetrical body halves. 18. The assembly as claimed in claim 16, wherein the teeth further comprise a pair of transverse teeth oriented diametrically opposite from each other and transversely oriented relative to the planar teeth, such that the planar teeth and the transverse teeth collectively divide a circular cross-section of the body into four quadrants. 19. The assembly as claimed in claim 18, wherein each quadrant of the body includes one of the first teeth. 20. The assembly as claimed in claim 19, wherein the teeth further comprise an array of non-symmetrical second teeth formed adjacent to but spaced from the first teeth, each second tooth having a first side surface that is generally parallel to the first side surface of an adjacent first tooth and offset toward the transverse teeth.