# US 2019/0169905 A1 · Hinge assembly for trunk lid

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- Number: US 2019/0169905 A1
- Document ID: US20190169905A1
- Status: Published application
- Kind: A1
- Application number: 15/980,510
- Filed: 2018-05-15
- Published: 2019-06-06
- Earliest claimed: 2017-12-06
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Jang Hwan Hyun
- Web page: https://patentgrep.com/patent/US20190169905A1

## CPC

- E05F 5/022: {specially adapted for vehicles, e.g. for hoods or trunks}
- E05D 5/062: {specially adapted for vehicles}
- E05D 11/1042: {the maintaining means being a cam and a torsion bar, e.g. motor vehicle hinge mechanisms}
- E05D 11/1071: {specially adapted for vehicles}
- E05F 1/1238: {specially adapted for vehicles}
- E05F 1/1261: {for counterbalancing}
- E05D 11/06: Devices for limiting the opening movement of hinges
- E05D 2005/067: {gooseneck shaped}
- E05Y 2201/638: Cams; Ramps
- E05Y 2900/548: Trunk lids
- E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00)
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

A hinge assembly for a trunk lid, includes: a hinge bracket attached to a trunk compartment; a hinge arm attached to a trunk lid and pivotally connected to the hinge bracket; and a damping mechanism disposed between the hinge bracket and the hinge arm, and damping a pivoting movement of the hinge arm, where the hinge arm has a hollow portion in which the damping mechanism is received.

## Claims

### Claim 1

A hinge assembly for a trunk lid, comprising:
a hinge bracket attached to a trunk compartment;
a hinge arm attached to a trunk lid and pivotally connected to the hinge bracket; and
a damping mechanism damping a pivoting movement of the hinge arm,
wherein the hinge arm has a hollow portion in which the damping mechanism is received.

### Claim 2 (depends on 1)

The hinge assembly according to claim 1, wherein the hinge bracket includes a damping profile having a curved surface limiting a range of the pivoting movement of the hinge arm.

### Claim 3 (depends on 2)

The hinge assembly according to claim 2, wherein the damping mechanism includes a rolling pin in rolling contact with the damping profile.

### Claim 4 (depends on 3)

The hinge assembly according to claim 3, wherein the rolling pin is movable in the hollow portion of the hinge arm.

### Claim 5 (depends on 4)

The hinge assembly according to claim 4, wherein the hinge arm has a guide slot guiding movement of the rolling pin.

### Claim 6 (depends on 4)

The hinge assembly according to claim 4, wherein the damping mechanism further includes a pin holder supporting the rolling pin.

### Claim 7 (depends on 6)

The hinge assembly according to claim 6, wherein the damping mechanism further includes a damping spring elastically supporting the pin holder.

### Claim 8 (depends on 2)

The hinge assembly according to claim 2, wherein the damping mechanism includes a moving member having a contact portion in contact with the damping profile.

### Claim 9 (depends on 8)

The hinge assembly according to claim 8, wherein the moving member is movable in the hollow portion of the hinge arm.

### Claim 10 (depends on 9)

The hinge assembly according to claim 9, wherein the hinge arm has a guide slot guiding movement of the moving member.

### Claim 11 (depends on 9)

The hinge assembly according to claim 9, wherein the damping mechanism further includes a damping spring elastically supporting the moving member.

### Claim 12 (depends on 2)

The hinge assembly according to claim 2, wherein the damping mechanism includes a moving member movable in the hollow portion of the hinge arm, and a rolling pin rotatably mounted in the moving member, and the rolling pin is in rolling contact with the damping profile.

### Claim 13 (depends on 12)

The hinge assembly according to claim 12, wherein the hinge arm has a guide slot guiding movement of the moving member.

### Claim 14 (depends on 12)

The hinge assembly according to claim 12, wherein the damping mechanism further includes a damping spring elastically supporting the moving member.