# US 11,298,898 B2 · Chassis component in fiber plastic composite mono construction with duroplastic matrix material and method for the production thereof

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- Number: US 11,298,898 B2
- Document ID: US11298898B2
- Status: Granted
- Kind: B2
- Application number: 16/339,965
- Filed: 2017-09-07
- Published: 2020-03-26
- Granted: 2022-04-12
- Earliest claimed: 2016-10-05
- Assignees: ZF Friedrichshafen AG
- Applicants: ZF Friedrichshafen AG
- Inventors: Ignacio Lobo Casanova
- Web page: https://patentgrep.com/patent/US11298898B2

## CPC

- B29C 70/84: by moulding material on preformed parts to be joined {(joining plastic parts by moulding B29C65/70)}
- B29C 70/50: for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C 70/681: {Component parts, details or accessories; Auxiliary operations}
- B60G 7/001: {Suspension arms, e.g. constructional features (B60G7/006 takes precedence)}
- B62D 7/146: {characterised by comprising means for steering by acting on the suspension system, e.g. on the mountings of the suspension arms}
- B60G 2204/11: Mounting of sensors thereon
- B60G 2206/014: with reinforcing nerves or branches
- B60G 2206/10: Constructional features of arms
- B60G 2206/7101: Fiber-reinforced plastics [FRP]
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B60G: VEHICLE SUSPENSION ARRANGEMENTS (air-cushion vehicles B60V; {cycle suspensions B62K25/00})
- 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

A fiber-reinforced plastic chassis may include a steering element, where the steering element comprises at least one reinforcement structure formed with continuous fibers, where the steering element comprises at least one stiffening structure formed with short and/or long fibers, where the at least one reinforcement structure is formed integrally with the at least one stiffening structure via a thermosetting matrix material, and where the steering element comprises a plurality of bearing receivers integrated in at least one of the at least one reinforcement structure and the at least one stiffening structure for receiving bearing elements.

## Claims

### Claim 1

A fiber-reinforced plastic chassis component comprising a steering element,
wherein the steering element comprises at least one reinforcement structure formed with continuous fibers,
wherein the steering element comprises at least one stiffening structure formed with short and/or long fibers,
wherein the at least one reinforcement structure is formed integrally with the at least one stiffening structure via a thermosetting matrix material, and
wherein the steering element comprises a plurality of bearing receivers integrated in at least one of the at least one reinforcement structure and the at least one stiffening structure for receiving bearing elements,
wherein at least one bearing receiver of the plurality of bearing receivers includes a plurality of strips, wherein a first strip of the plurality of strips extends around a first side of a bearing opening to form a first portion of a bushing, and wherein a second strip of the plurality of strips extends around a second side of the bearing opening to form a second portion of the bushing, and
wherein the reinforcement structure includes a half-shell formed by a plurality of continuous fiber layers, and wherein the stiffening structure is a ribbed structure formed in the half-shell.

### Claim 2 (depends on 1)

The chassis component according to claim 1, wherein the reinforcement structure has a plurality of continuous fiber layers, wherein each continuous fiber layer of the plurality of continuous fiber layers includes a different fiber orientation.

### Claim 3 (depends on 1)

The chassis component according to claim 1, wherein the stiffening structure is a ribbed structure.

### Claim 4 (depends on 1)

The chassis component according to claim 1, wherein the chassis component includes at least one integrated load sensor.

### Claim 5

A fiber-reinforced plastic chassis component comprising a steering element, comprising:
a reinforcement structure that at least partially forms the steering element, wherein the reinforcement structure is formed with fibers; and
a stiffening structure that at least partially forms the steering element, wherein the stiffening structure is formed with fibers,
wherein the reinforcement structure is formed integrally with the stiffening structure via a common thermosetting matrix material,
wherein the steering element comprises a plurality of bearing receivers formed integrally with at least one of the reinforcement structure and the stiffening structure, and wherein at least one bearing receiver of the plurality of bearing receivers forms a bushing formed of at least two strips having complimentary curvatures to surround a bearing opening, and
wherein the reinforcement structure includes a half-shell formed by a plurality of continuous fiber layers and the stiffening structure is located within a cavity of the half-shell.

### Claim 6 (depends on 5)

The chassis component of claim 5, wherein each bearing receiver of the plurality of bearing receivers includes an integrally-formed bushing that is configured for receiving at least one bearing element.

### Claim 7 (depends on 5)

The chassis component according to claim 5, wherein the reinforcement structure has a plurality of continuous fiber layers, and wherein each continuous fiber layer of the plurality of continuous fiber layers includes a different fiber orientation.

### Claim 8 (depends on 5)

The chassis component according to claim 5, wherein the stiffening structure includes a ribbed structure.

### Claim 9 (depends on 5)

The chassis component according to claim 5, wherein the stiffening structure includes a ribbed structure formed in the cavity of the half-shell.

### Claim 10 (depends on 5)

The chassis component according to claim 5, wherein the chassis component includes at least one integrated load sensor.

### Claim 11 (depends on 5)

The chassis component according to claim 5, wherein the strips are unattached at their ends.

### Claim 12 (depends on 5)

The chassis component according to claim 5, wherein the strips are connected at their ends by a cross-strip.
