# US 10,766,384 B2 · Child safety seat

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- Number: US 10,766,384 B2
- Document ID: US10766384B2
- Status: Granted
- Kind: B2
- Application number: 16/220,561
- Filed: 2018-12-14
- Published: 2019-06-20
- Granted: 2020-09-08
- Earliest claimed: 2017-12-14
- Assignees: Britax Römer Kindersicherheit GmbH
- Applicants: Britax Römer Kindersicherheit GmbH
- Inventors: Michael Schmitz; Richard Henseler
- Web page: https://patentgrep.com/patent/US10766384B2

## CPC

- B60N 2/2809: {with additional tether connected to the top of the child seat and passing above the top of the back-rest}
- B60N 2/2821: {having a seat and a base part}
- B60N 2/286: {forward facing (B60N2/2866 takes precedence)}
- B60N 2/2875: {inclinable, as a whole or partially}
- B60N 2/2887: {Fixation to a transversal anchorage bar, e.g. isofix}
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

A child safety seat includes a base having an attachment point, and a shell having a guiding element mounted on an upper portion of the shell. The child safety seat additionally includes a top tether connected to the attachment point of the base, and the guiding element is configured to abut against and slidably support the top tether when the top tether is secured to an anchoring point of a vehicle.

## Claims

### Claim 1

A child safety seat comprising:
a base,
a shell comprising a guiding element mounted on an upper portion of the shell, wherein the shell is configured to be coupled to and reclinable relative to the base, and
a top tether,
wherein the guiding element is configured to guide and slidably support the top tether when the top tether is secured between a first anchoring point of a vehicle and a second anchoring point,
wherein the second anchoring point is stationary relative to the vehicle while the shell is being reclined relative to the base, and
wherein tension of the top tether does not substantially change in response to the shell being reclined relative to the base.

### Claim 2 (depends on 1)

The child safety seat of claim 1, wherein the second anchoring point is fixed to the base of the child safety seat, an ISOFIX connector of the child safety seat, or an ISOFIX anchoring point of the vehicle.

### Claim 3 (depends on 1)

The child safety seat of claim 1, wherein the guiding element is further configured to assist in preventing the child safety seat rotating forward about a fixing point at the base of the child safety seat when the child safety seat is anchored to the vehicle at the fixing point.

### Claim 4 (depends on 1)

The child safety seat of claim 1, wherein the guiding element is a rod, a pulley, an arcuate tube, an arcuate plate or a part having a curved cross-section.

### Claim 5

A child safety seat comprising:
a shell comprising a guiding element mounted on an upper portion of the shell, and
a top tether,
wherein the guiding element is configured to abut against and slidably support the top tether when the top tether is secured between a first anchoring point of a vehicle and a second anchoring point which is fixed with respect to the vehicle, and
wherein the guiding element is deformable and the extent of such deformation being dependent on the forces exerted on the guiding element by the top tether providing the forces exerted on the guiding element by the top tether exceed a predetermined threshold.

### Claim 6 (depends on 5)

The child safety seat of claim 5, wherein the deformation is determined by material properties or dimensions of the guiding element.

### Claim 7 (depends on 1)

The child safety seat claim 1, wherein the guiding element is mounted on an upper half of a back of the shell.

### Claim 8 (depends on 1)

The child safety seat claim 1, wherein the top tether is a single top tether.

### Claim 9 (depends on 1)

The child safety seat claim 1, wherein the top tether is a V-shaped top tether comprising a pair of straps, wherein the second anchoring point comprises a pair of second anchoring points, and wherein
the guiding element is configured to guide and slidably support the pair of straps, and wherein each of the pair of straps is secured to a respective one of the pair of second anchoring points.

### Claim 10 (depends on 1)

The child safety seat claim 1, wherein the child safety seat further comprises a fixing point located at the base of the child safety seat and being configured to anchor the child safety seat to the vehicle.

### Claim 11 (depends on 10)

The child safety seat of claim 10, wherein the fixing point of the child safety seat is an ISOFIX connector.

### Claim 12 (depends on 1)

The child safety seat claim 1, wherein the child safety seat has openings extending from an attachment point of the top tether at the base of the child safety seat to the guiding element to allow the top tether connected to the attachment point to run within the openings of the child safety seat to the guiding element.

### Claim 13 (depends on 1)

The child safety seat claim 1, wherein the shell of the child safety seat comprises reinforcements around the guiding element mounted on an upper portion of the shell.

### Claim 14 (depends on 1)

The child safety seat claim 1, wherein the child safety seat is a forward-facing child safety seat.

### Claim 15 (depends on 1)

The child safety seat of claim 1, wherein the guiding element is mounted on a top third of a back of the shell.