# US 11,299,020 B2 · Vehicle-body structure of vehicle

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- Number: US 11,299,020 B2
- Document ID: US11299020B2
- Status: Granted
- Kind: B2
- Application number: 16/929,493
- Filed: 2020-07-15
- Published: 2021-01-28
- Granted: 2022-04-12
- Earliest claimed: 2019-07-23
- Assignees: Mazda Motor Corporation
- Applicants: Mazda Motor Corporation
- Inventors: Masanori Honda; Tomohito Okuyama; Takehisa Kohira; Ryuji Nonaka; Toshiyuki Gendo; Ken Ueki; Isamu Kizaki; Eri Kaiki
- Web page: https://patentgrep.com/patent/US11299020B2

## CPC

- B60J 5/0456: {Behaviour during impact}
- B60J 5/0468: {Fixation or mounting means specific for door components (fasteners in general F16B21/00)}
- B62D 25/04: Door pillars {; windshield pillars}
- B62D 25/14: Dashboards as superstructure sub-units (other dashboard aspects B60K)
- B62D 25/20: Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)}
- B60J 5/0427: {the elements being arranged along the lower edge of door}
- B60J 5/0429: {the elements being arranged diagonally}
- B60J 5/0443: {Beams}
- B60J 5/045: {Panel type elements (B60J5/0455 takes precedence)}
- B60J 5/0458: {Passive coupling of the reinforcement elements to the door or to the vehicle body}
- B62D 21/157: {for side impacts}
- B62D 25/02: Side panels {(B62D33/046 takes precedence; sideboards for open load compartments B62D33/023)}
- B62D 25/025: {Side sills thereof}
- B60J: WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES (fastening, suspending, closing, or opening of such devices E05)
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

There are provided a vehicle-body frame member forming an opening portion for entrance at a vehicle side part and a front side door provided so as to open and close the opening portion. The vehicle-body frame member comprises a side sill, the front side door comprises a door panel portion provided with an inner lower portion which overlaps with the side sill in a vehicle wide view and reinforcement portions provided at three side-portions of a peripheral part of the door panel portion which are continuous and include the inner lower portion such that the reinforcement portions overlap with the vehicle-body frame member in a vehicle side view.

## Claims

### Claim 1

A vehicle-body structure of a vehicle, comprising:
a vehicle-body frame member forming an opening portion for entrance at a vehicle side part; and
a side door provided so as to open and close the opening portion,
wherein
said vehicle-body frame member comprises a side sill, said side door comprises a door panel portion and a reinforcement portion provided at a peripheral part of the door panel portion such that the reinforcement portion overlaps with said vehicle-body frame member in a vehicle side view, the peripheral part of said door panel portion comprises a lower-side overlapping portion which overlaps with said side sill in the vehicle side view, and said reinforcement portion comprises a plurality of patch members disposed at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion;
said vehicle-body frame member comprises a center pillar, and the peripheral part of said door panel portion comprises a center overlapping portion which overlaps with said center pillar in the vehicle side view;
the reinforcement portion comprises a rear-side reinforcement portion disposed along an inner rear portion of the door panel portion and a lower-side reinforcement portion disposed along the inner lower portion of the door panel portion;
the rear-side reinforcement portion overlaps with a frontside center-pillar flange of the center pillar and the center-pillar side wall portion of the center pillar in the vehicle side view; and
the lower-side reinforcement portion overlaps with an upper-side side-sill flange of the side sill and a side-sill side wall portion of the side sill in the vehicle side view.

### Claim 2 (depends on 1)

The vehicle-body structure of the vehicle of claim 1, wherein said vehicle-body frame member comprises a floor cross member provided at a position which overlaps with said side sill in the vehicle side view and extending in a vehicle width direction, and said reinforcement portion is configured to overlap with said floor cross member in the vehicle side view.

### Claim 3 (depends on 2)

The vehicle-body structure of the vehicle of claim 2, wherein said vehicle-body frame member comprises a hinge pillar and an instrument-panel member provided at a position which overlaps with said hinge pillar in the vehicle side view and extending in the vehicle width direction, the peripheral part of said door panel portion comprises a front-side overlapping portion which overlaps with said hinge pillar and said instrument-panel member in the vehicle side view, and said reinforcement portion is provided at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion and said front-side overlapping portion.

### Claim 4 (depends on 3)

The vehicle-body structure of the vehicle of claim 3, wherein said vehicle-body frame member comprises a center pillar, the peripheral part of said door panel portion comprises a center overlapping portion which overlaps with said center pillar in the vehicle side view, and said reinforcement portion is provided at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion and said center overlapping portion.

### Claim 5 (depends on 4)

The vehicle-body structure of the vehicle of claim 4, wherein said center overlapping portion overlaps with a central part, in a vertical direction, of said center pillar, and said reinforcement portion provided at said center overlapping portion extends so as to include a position of the center overlapping portion which overlaps with said central part, in the vertical direction, of the center pillar.

### Claim 6 (depends on 5)

The vehicle-body structure of the vehicle of claim 5, wherein said side door further comprises an impact bar attached to said door panel portion and extending in a vehicle longitudinal direction, and said reinforcement portion is configured to include an attachment portion of said impact bar to the door panel portion.

### Claim 7 (depends on 1)

The vehicle-body structure of the vehicle of claim 1, wherein said vehicle-body frame member comprises a hinge pillar and an instrument-panel member provided at a position which overlaps with said hinge pillar in the vehicle side view and extending in the vehicle width direction, the peripheral part of said door panel portion comprises a front-side overlapping portion which overlaps with said hinge pillar and said instrument-panel member in the vehicle side view, and said reinforcement portion is provided at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion and said front-side overlapping portion.

### Claim 8 (depends on 1)

The vehicle-body structure of the vehicle of claim 1, wherein said reinforcement portion is provided at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion and said center overlapping portion.

### Claim 9 (depends on 8)

The vehicle-body structure of the vehicle of claim 8, wherein said center overlapping portion overlaps with a central part, in a vertical direction, of said center pillar, and said reinforcement portion provided at said center overlapping portion extends so as to include a position of the center overlapping portion which overlaps with said central part, in the vertical direction, of the center pillar.

### Claim 10 (depends on 1)

The vehicle-body structure of the vehicle of claim 1, wherein said side door further comprises an impact bar attached to said door panel portion and extending in a vehicle longitudinal direction, and said reinforcement portion is configured to include an attachment portion of said impact bar to the door panel portion.

### Claim 11

A vehicle-body structure of a vehicle, comprising:
a vehicle-body frame member forming an opening portion for entrance at a vehicle side part; and
a side door provided so as to open and close the opening portion,
wherein
said vehicle-body frame member comprises a side sill, said side door comprises a door panel portion and a reinforcement portion provided at a peripheral part of the door panel portion such that the reinforcement portion overlaps with said vehicle-body frame member in a vehicle side view, the peripheral part of said door panel portion comprises a lower-side overlapping portion which overlaps with said side sill in the vehicle side view, and said reinforcement portion comprises a plurality of patch members disposed at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion;
said vehicle-body frame member comprises a hinge pillar, and the peripheral part of said door panel portion comprises a front-side overlapping portion which overlaps with said hinge pillar in the vehicle side view;
the reinforcement portion comprises a front-side reinforcement portion disposed along an inner front portion of the door panel portion and a lower-side reinforcement portion disposed along the inner lower portion of the door panel portion;
the front-side reinforcement portion overlaps with a hinge-pillar side wall portion of a rear-side hinge pillar flange, and with the hinge pillar in the vehicle side view; and
the lower-side reinforcement portion overlaps with an upper-side side-sill flange of the side sill and a side-sill side wall portion of the side sill in the vehicle side view.

### Claim 12

A vehicle-body structure of a vehicle, comprising:
a vehicle-body frame member forming an opening portion for entrance at a vehicle side part; and
a side door provided so as to open and close the opening portion,
wherein
said vehicle-body frame member comprises a side sill, said side door comprises a door panel portion and a reinforcement portion provided at a peripheral part of the door panel portion such that the reinforcement portion overlaps with said vehicle-body frame member in a vehicle side view, the peripheral part of said door panel portion comprises a lower-side overlapping portion which overlaps with said side sill in the vehicle side view, and said reinforcement portion comprises a plurality of patch members disposed at three side-portions of the peripheral part of the door panel portion which are continuous and include said lower-side overlapping portion;
said vehicle-body frame member comprises a center pillar, and the peripheral part of said door panel portion comprises a center overlapping portion which overlaps with said center pillar in the vehicle side view;
said vehicle-body frame member comprises a hinge pillar, and the peripheral part of said door panel portion comprises a front-side overlapping portion which overlaps with said hinge pillar in the vehicle side view;
the reinforcement portion comprises a front-side reinforcement portion disposed along an inner front portion of the door panel portion, a rear-side reinforcement portion disposed along an inner rear portion of the door panel portion, and a lower-side reinforcement portion disposed along the inner lower portion of the door panel portion;
the front-side reinforcement portion overlaps with a hinge-pillar side wall portion of a rear-side hinge pillar flange, and with the hinge pillar in the vehicle side view;
the rear-side reinforcement portion overlaps with a frontside center-pillar flange of the center pillar and the center-pillar side wall portion of the center pillar in the vehicle side view; and
the lower-side reinforcement portion overlaps with an upper-side side-sill flange of the side sill and a side-sill side wall portion of the side sill in the vehicle side view.