A grommet assembly to support a wiring harness passing through an opening in a panel, the assembly including two rotationally symmetrical components coupled together along a primary coupling face to form a harness-receiving passage therethrough. Each rotationally symmetrical component including a fi
A grommet assembly to support a wiring harness passing through an opening in a panel, the assembly including two rotationally symmetrical components coupled together along a primary coupling face to form a harness-receiving passage therethrough. Each rotationally symmetrical component including a first, thermoplastic structural portion integrated with a second, resilient sealing portion. The structural portions including a plurality of interlocking elements cooperating to couple the components together, and a plurality of retention arms engageable against the panel to retain the assembly and panel together. The sealing portion forming an outer sealing lip having a lip distal edge engageable against a surface of the panel adjacent the opening. The outer sealing lip including lap joints adjacent opposite sides of the primary coupling face. The structural portions including reinforcement tabs extending over each lap joint and designed to resist separation of the lap joints.
대표청구항▼
1. A grommet assembly to support a wiring harness passing through an opening in a panel, the grommet assembly comprising: two rotationally symmetrical components coupled together along a primary coupling face to form a harness-receiving passage therethrough, each of the two rotationally Symmetrical
1. A grommet assembly to support a wiring harness passing through an opening in a panel, the grommet assembly comprising: two rotationally symmetrical components coupled together along a primary coupling face to form a harness-receiving passage therethrough, each of the two rotationally Symmetrical components being an integrated component comprising a first, thermoplastic structural portion integrated with a second, resilient second, sealing portion; the first, structural portions of the integrated components including a plurality of interlocking elements cooperating to couple the components together, and a plurality of retention arms engageable against the panel to retain the grommet assembly and the panel together; the second, sealing portions of the integrated components forming an outer sealing lip having a lip distal edge engageable against a surface of the panel adjacent the opening, the outer sealing lip comprising a pair of lap joints, each of the pair of lap joints being adjacent a respective opposite side of the primary coupling faces; and the first, structural portions of the integrated components further including a pair of outer reinforcement tabs, each of the pair of outer reinforcing tabs extending over one of the pair joints and designed to resist separation of the one of the pair lap joints of the outer sealing lip of the second, sealing portion. 2. The grommet assembly of claim 1, wherein the outer reinforcement tabs of the first, structural portions of the integrated components comprise a reinforcement tab distal edge that is spaced from the lip distal edge of the outer sealing lip of the second, sealing portions, and that is spaced from the surface of the panel when the grommet assembly is mounted to the panel. 3. The grommet assembly of claim 1, wherein each of the pair of lap joints of the outer sealing lip of the second, sealing portions of the integrated components includes cooperating mating terminal surfaces extending in an angled plane that is neither parallel nor perpendicular to a plane defined by the primary coupling face. 4. The grommet assembly of claim 1, wherein the reinforcement tabs of the first, structural portions of the integrated components further comprise an extension extending past a plane defined by the primary coupling face that is received within a corresponding recess short of the plane with the second, sealing portion extending therebetween, the second, sealing portion and at least one of the extension and the corresponding recess including cooperating mating surfaces extending in an angled plane that is neither parallel nor perpendicular to the plane. 5. The grommet assembly of claim 1, wherein a slot through the first, structural portions of the integrated components extends along each side of the retention arms with the second, sealing portion spanning each slot, and wherein a recess is formed in the second, sealing portion spanning each slot. 6. The grommet assembly of claim 1, wherein the first, structural portions of the integrated components further include a plurality of centering rib protrusions positionable adjacent a side edge of the opening of the panel to help the retention arms better retain the grommet assembly centrally within the opening. 7. The grommet assembly of claim 6, wherein the second, sealing portions of the integrated components extend over the centering rib protrusions. 8. The grommet assembly of claim 1, wherein the first, structural and second, sealing portions of each of the two rotationally symmetrical components are integrated with each other along substantially all contacting surfaces thereof. 9. The grommet assembly of claim 1, wherein the second, sealing portions of the integrated components form a surface of the harness-receiving passage engageable against the wiring harness extending therethrough. 10. The grommet assembly of claim 1, wherein the primary coupling face comprises staggered parallel surfaces. 11. The grommet assembly of claim 1, wherein the interlocking elements of the first, structural portions of the integrated components comprise extending tabs engageable with receiving pockets. 12. The grommet assembly of claim 1, wherein the first and second rotationally symmetrical components are both formable by the same mold set. 13. A process of molding the grommet assembly of claim 1, comprising forming the first, structural portion of each rotationally symmetrical component in a first shot operation of a two-shot molding process and integrally forming the second, sealing portion with the first, structural portion formed during the first shot operation in a second shot operation of the two-shot molding process. 14. A grommet assembly to support a wiring harness passing through an opening in a panel, the grommet assembly comprising: two rotationally symmetrical components coupled together along a primary coupling face to form a harness-receiving passage therethrough, each of the two rotationally symmetrical components being an integrated component comprising a first, thermoplastic structural portion integrated with a second, resilient sealing portion;the first, structural portions of the integrated components including a plurality of interlocking elements cooperating to couple the components together, and a plurality of retention arms engageable against the panel to retain the grommet assembly and the panel together; andthe second, sealing portions of the integrated components forming an outer sealing lip having an outer lip distal edge engageable against a surface of the panel adjacent the opening and an inner sealing lip engageable against a side edge of the opening of the panel, the outer sealing lip comprising a pair of lap joints, each of the pair of lap joints being adjacent a respective opposite side of the primary coupling faces. 15. The grommet assembly of claim 14, wherein the outer lip distal edge of the second, sealing portions of the integrated components is angled outwardly in a first direction and the inner sealing lip of the second, sealing portions of the integrated component is angled outwardly in a second direction opposite the first direction. 16. The grommet assembly of claim 14, wherein the first, structural portions of the integrated components include a plurality of centering rib protrusions positionable adjacent the side edge with the inner sealing lip therebetween to help retain the grommet centrally in the opening and maintain the inner sealing lip against the side edge of the opening. 17. The grommet assembly of claim 16, wherein the second, sealing portions of the integrated components extend over the centering rib protrusions between the centering rib protrusions and the inner sealing lip. 18. The grommet assembly of claim 14, wherein the first, structural portions of the integrated components further include a pair of outer reinforcement tabs, each of the pair of outer reinforcing tabs extending over one of the pair of lap joints and designed to resist separation of the one of the pair of lap joints of the outer sealing lip of the second, sealing portions of the integrated components, the outer reinforcement tabs comprising a reinforcement tab distal edge that is spaced from the outer lip distal edge of the outer sealing lip of the second, sealing portions of the integrated components and spaced from the surface of the panel when the grommet assembly is mounted to the panel. 19. The grommet assembly of claim 18, wherein the reinforcement tabs of the first, structural portions further comprise an extension extending past a plane defined by the primary coupling face that is received within a corresponding recess short of the plane with the second, sealing portion extending therebetween, the second, sealing portion and at least one of the extension and the recess including cooperating mating surfaces extending in an angled plane that is neither parallel nor perpendicular to the plane. 20. The grommet assembly of claim 14, wherein a slot through the first, structural portions of the integrated components extends along each side of the retention arms with the second, sealing portion spanning each slot, and wherein a recess is formed in the second, sealing portion spanning each slot.
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이 특허에 인용된 특허 (17)
Patel Praful J. (Livonia MI), Dual durometer self locking and sealing plugs and method for making same.
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