Side door structure of vehicle

Patent metadata

Field	Value
Publication number	US-11584201-B2
Application number	US-202117230899-A
Country	US
Kind code	B2
Filing date	Apr 14, 2021
Priority date	Jun 10, 2020
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

There are provided an outer member, an inner member including a front-side vertical wall portion and a rear-side vertical wall portion, an impact bar extending from front-side attachment portions of the front-side vertical wall portion to rear-side attachment portions of the rear-side vertical wall portion, a hinge-reinforcement member reinforcing a hinge attachment portion where a hinge is attached to the front-side vertical wall portion, and a latch-reinforcement member reinforcing a latch-attachment portion where a latch device is attached to the rear-side vertical wall portion. The front-side vertical wall portion and the rear-side vertical wall portion are made of casting or high-strength resin, and the hinge-reinforcement member and the latch-reinforcement member are configured to have higher ductility than the front-side vertical wall portion and the rear-side vertical wall portion and connected to the impact bar.

First claim

What is claimed is:

1. A side door structure of a vehicle, comprising:
an outer member;
an inner member connected to said outer member and including a front-side vertical wall portion and a rear-side vertical wall portion which are positioned respectively at a front side and a rear side, in a vehicle longitudinal direction, of the inner member, the front-side vertical wall portion being provided with a hinge rotatable relative to a vehicle body, the rear-side vertical wall portion being provided with a latch device capable of locking or unlocking relative to the vehicle body;
an impact bar provided to extend from a front-side attachment portion which is formed at said front-side vertical wall portion to a rear-side attachment portion which is formed at said rear-side vertical wall portion;
a hinge-reinforcement member connected to said hinge and reinforcing a hinge attachment portion where the hinge is attached to said front-side vertical wall portion; and
a latch-reinforcement member connected to said latch device and reinforcing a latch-attachment portion where the latch device is attached to said rear-side vertical wall portion,
wherein at least one of said front-side vertical wall portion and said rear-side vertical wall portion is configured as a cast or resin-made vertical wall portion which is made by casting or of high-strength resin, and said hinge-reinforcement member and/or said latch-reinforcement member which are provided at said respective cast or resin-made vertical wall portion are configured to have higher ductility than the cast or resin-made vertical wall portion and connected to said impact bar.

2. The side door structure of the vehicle of claim 1 , wherein said front-side vertical wall portion and said rear-side vertical wall portion are configured as the cast or resin-made vertical wall portions which are made of the casting or high-strength resin, respectively, and both end portions of said impact bar are connected to said hinge-reinforcement member and said latch-reinforcement member, respectively.

3. The side door structure of the vehicle of claim 2 , wherein said front-side attachment portion includes a plurality of front-side attachment portions which are arranged along a longitudinal direction of said impact bar and a single or plurality of rib portions which extend in a vehicle width direction and connect said plural front-side attachment portions, and said rear-side attachment portion includes a plurality of rear-side attachment portions which are arranged along the longitudinal direction of said impact bar and a single or plurality of rib portions which extend in the vehicle width direction and connect said plural rear-side attachment portions.

4. The side door structure of the vehicle of claim 3 , wherein said front-side vertical wall portion is provided with a pair of upper and lower hinges, said hinge-reinforcement member is provided to reinforce the hinge attachment portion where said pair of hinges are attached, and a front end portion of said impact bar is connected to said hinge-reinforcement member at a position which is located between said pair of hinges.

5. The side door structure of the vehicle of claim 4 , said rear-side vertical wall portion is provided to extend forwardly, in the vehicle longitudinal direction, from a corner portion which is formed at a lower end portion, said latch-reinforcement member is provided to extend from said latch attachment portion to said corner portion, and a rear end portion of said impact bar is connected to said latch-reinforcement member at said corner portion.

6. The side door structure of the vehicle of claim 5 , wherein said inner member is provided with a beltline-reinforcement member which connects respective upper end portions of said front-side vertical wall portion and said rear-side vertical wall portion, said hinge-reinforcement member is provided to extend from said hinge attachment portion to the upper end portion of the front-side vertical wall portion, said latch-reinforcement member is provided to extend from said latch attachment portion to the upper end portion of the rear-side vertical wall portion, and front and rear end portions of said beltline-reinforcement member are connected to respective upper end portions of the hinge-reinforcement member and the latch-reinforcement member.

7. The side door structure of the vehicle of claim 2 , wherein said front-side vertical wall portion is provided with a pair of upper and lower hinges, said hinge-reinforcement member is provided to reinforce the hinge attachment portion where said pair of hinges are attached, and a front end portion of said impact bar is connected to said hinge-reinforcement member at a position which is located between said pair of hinges.

8. The side door structure of the vehicle of claim 2 , said rear-side vertical wall portion is provided to extend forwardly, in the vehicle longitudinal direction, from a corner portion which is formed at a lower end portion, said latch-reinforcement member is provided to extend from said latch attachment portion to said corner portion, and a rear end portion of said impact bar is connected to said latch-reinforcement member at said corner portion.

9. The side door structure of the vehicle of claim 2 , wherein said inner member is provided with a beltline-reinforcement member which connects respective upper end portions of said front-side vertical wall portion and said rear-side vertical wall portion, said hinge-reinforcement member is provided to extend from said hinge attachment portion to the upper end portion of the front-side vertical wall portion, said latch-reinforcement member is provided to extend from said latch attachment portion to the upper end portion of the rear-side vertical wall portion, and front and rear end portions of said beltline-reinforcement member are connected to respective upper end portions of the hinge-reinforcement member and the latch-reinforcement member.

10. The side door structure of the vehicle of claim 3 , said rear-side vertical wall portion is provided to extend forwardly, in the vehicle longitudinal direction, from a corner portion which is formed at a lower end portion, said latch-reinforcement member is provided to extend from said latch attachment portion to said corner portion, and a rear end portion of said impact bar is connected to said latch-reinforcement member at said corner portion.

11. The side door structure of the vehicle of claim 3 , wherein said inner member is provided with a beltline-reinforcement member which connects respective upper end portions of said front-side vertical wall portion and said rear-side vertical wall portion, said hinge-reinforcement member is provided to extend from said hinge attachment portion to the upper end portion of the front-side vertical wall portion, said latch-reinforcement member is provided to extend from said latch attachment portion to the upper end portion of the rear-side vertical wall portion, and front and rear end portions of said beltline-reinforcement member are connected to respective upper end portions of the hinge-reinforcement member and the latch-reinforcement member.

12. The side door structure of the vehicle of claim 4 , wherein said inner member is provided with a beltline-reinforcement member which connects respective upper end portions of said front-side vertical wall portion and said rear-side vertical wall portion, said hinge-reinforcement member is provided to extend from said hinge attachment portion to the upper end portion of the front-side vertical wall portion, said latch-reinforcement member is provided to extend from said latch attachment portion to the upper end portion of the re

Assignees

• Mazda Motor

Inventors

• Moriyama Yukihiro

Classifications

• B60J5/0443

  Beams · CPC title

• B60J5/0433

  the elements being arranged at the lock area · CPC title

• B60J5/0483

  lightweight metal, e.g. aluminum, magnesium · CPC title

• B60J5/042 Primary

  Reinforcement elements · CPC title

• B60J5/0466

  using cast parts · CPC title