Interfacing element for a lock zone of a motor vehicle door

Patent metadata

Field	Value
Publication number	US-11465473-B2
Application number	US-201916722552-A
Country	US
Kind code	B2
Filing date	Dec 20, 2019
Priority date	Dec 20, 2018
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

An interfacing element of a lock zone of a door of a motor vehicle. The interfacing element comprises: includes a support made of plastic material, intended to be attached to a lining of the door, the lining being made of plastic material and a reinforcing plate of the lock zone onto which a lock is intended to be fastened, the plate being integrated to the support by overmolding. The support is made of a material having a Young's modulus lower than that of the plastic material of the lining of the door, and a coefficient of elongation at break greater than that of the plastic material of the lining of the door. A sub-assembly of motor vehicle includes a lining of tailgate and an interfacing element fastened onto an outer face of the lining.

First claim

The invention claimed is:

1. An interfacing element of a lock zone of a door of a motor vehicle, the interfacing element comprising:
a support made of thermoplastic material and adapted to be attached to a lining of the door, the lining being made of thermoplastic material;
a reinforcing plate of the lock zone onto which a lock is adapted to be fastened, the reinforcing plate being integrated to the support by overmolding; and
wherein the thermoplastic material of the support has a Young's modulus lower than that of the thermoplastic material of the lining and a coefficient of elongation at break greater than that of the thermoplastic material of the lining.

2. The interfacing element according to claim 1 , wherein the reinforcing plate is made of metallic material or of composite material.

3. The interfacing element according to claim 1 , wherein the thermoplastic material of the support is made is more deformable than the thermoplastic material of the lining.

4. The interfacing element according to claim 1 , wherein the thermoplastic material of the support has properties as follows:
a Young's modulus between 500 MPa and 3000 MPa; and
a coefficient of elongation at break greater than 20%.

5. The interfacing element according to claim 1 , wherein the support is made of a material chosen from unreinforced polypropylene (PP), reinforced polypropylene, unreinforced polyethylene (PE), and reinforced polyethylene.

6. The interfacing element according to claim 1 , wherein the support has dimensions in the direction of a Y-axis of the motor vehicle and in the direction of a Z-axis of the motor vehicle greater than dimensions in the direction of the Y-axis of the motor vehicle and in the direction of the Z-axis of the reinforcing plate.

7. The interfacing element according to claim 1 , wherein the support has bosses around the reinforcing plate, which bosses form a hollow whose concavity is oriented in the direction of an X-axis of the motor vehicle with respect to the lining.

8. The interfacing element according to claim 1 , further comprising ribs so as to reinforce resistance of the support in the event of impact.

9. A sub-assembly of motor vehicle, the sub-assembly comprising:
a lining of the door, the door being a tailgate; and
the interfacing element according to claim 1 fastened onto an outer face of the lining.

10. The sub-assembly of motor vehicle according to claim 9 , wherein the interfacing element is fastened onto the outer face of the lining via at least one of a technology selected from the group consisting of gluing, welding, snap-riveting, overmolding, screwing, riveting, clipping and adhesive bonding.

11. The sub-assembly of motor vehicle according to claim 9 , wherein the interfacing element is fastened to the outer face of the lining by screwing.

12. The sub-assembly of motor vehicle according to claim 9 , further comprising a connecting member adapted to retain pieces of the interfacing element or of the lining that may be deformed in the event of an impact.

13. The sub-assembly of motor vehicle according to claim 12 , wherein the connecting member is made of thermoplastic material or glass fibers.

14. The sub-assembly of motor vehicle according to claim 13 , wherein the connecting member is a braid.

15. The sub-assembly of motor vehicle according to claim 11 , wherein the screwing is via a self-drilling screw.

16. The interfacing element according to claim 4 , wherein the support is made of a material having properties as follows:
a Young's modulus between 800 MPa and 2000 MPa; and
a coefficient of elongation at break between 20 and 80%.

17. The interfacing element according to claim 4 , wherein the support is made of a material having properties as follows:
a Young's modulus between 800 MPa and 2000 MPa; and
a coefficient of elongation at break greater than 80%.

Assignees

• Plastic Omnium Cie

Inventors

• Coudron Philippe

Classifications

• B60J5/0484

  hybrid, i.e. plastic moulded onto metal parts · CPC title

• B60J5/107 Primary

  constructional details, e.g. about door frame, panels, materials used, reinforcements · CPC title

• B60J5/0481

  plastic · CPC title

• B60J5/10 Primary

  arranged at the vehicle rear (B60J5/04 takes precedence {; bonnets or lids B62D25/10; tail gates for pick-up trucks B62D33/0273; counterbalancing E05F; springs, e.g. pneumatic F16F}) · CPC title

• B62D65/00

  Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for · CPC title