Restraint system for a vehicle seat

Patent metadata

Field	Value
Publication number	US-11273789-B2
Application number	US-202016802793-A
Country	US
Kind code	B2
Filing date	Feb 27, 2020
Priority date	Feb 27, 2019
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

The invention relates to a restraint system for a vehicle seat, comprising a webbing belt element for restraining an occupant of the vehicle seat, further comprising a guide belt element which is guided continuously on a guideway, the holding element being securely connected to a first section of the guide belt element, wherein the webbing belt element is passed through a cutout of the holding element, wherein by means of a movement of the self-contained guide belt element on the guideway in a first direction of rotation the holding element is continuously adjustable within an adjustment section of the guideway from a second maximum position to a first maximum position.

First claim

The invention claimed is:

1. A restraint system for a vehicle seat, comprising:
a webbing belt element for restraining an occupant of the vehicle seat, further comprising a guide belt element which is guided continuously on a guideway, a holding element being positionally secure connected to a first section of the guide belt element,
wherein the webbing belt element is guided passing through a cutout in the holding element,
wherein by means of a movement of the guide belt element, which is self-contained, on the guideway in a first direction of rotation, the holding element is continuously adjustable within an adjustment section of the guideway from a second maximum position to a first maximum position,
wherein the guideway forms a friction section arranged separately from the adjustment section, and
wherein in the friction section a braking unit for the guide belt element is arranged which comprises a friction wheel unit arranged on a first side of the guide belt element and a brake shoe unit which is arranged on a second side of the guide belt element and which can interact with the friction wheel unit.

2. The restraint system according to claim 1 , wherein the friction wheel unit comprises a friction wheel element, an outer surface of which forms a friction surface with respect to the guide belt element, wherein a rotational movement of the friction wheel element around a central axis of the friction wheel element is acted upon by a force in a first direction and forms a freewheel in a second direction.

3. The restraint system according to claim 2 , wherein the brake shoe unit comprises a brake shoe element which forms a cutout designed to be complementary to a section of the outer surface of the friction wheel element.

4. The restraint system according to claim 1 , wherein at least one of the webbing belt element is guided passing through a cutout in the first section of the guide belt element, and the cutout of the guide belt element and the cutout of the holding element overlap one another.

5. The restraint system according to claim 4 , wherein at least one of a longitudinal extension of the cutout of the guide belt element and a longitudinal extension of the cutout of the holding element are arranged at an acute angle relative to the first direction of rotation, and wherein an extent of the holding element in a direction parallel to the first direction of rotation is greater on a first side than on a second side.

6. The restraint system according to claim 4 , wherein at least one of a longitudinal extension of the cutout of the guide belt element and a longitudinal extension of the cutout of the holding element are arranged at an acute angle relative to the first direction of rotation.

7. The restraint system according to claim 4 , wherein an extent of the holding element in a direction parallel to the first direction of rotation is greater on a first side than on a second side.

8. The restraint system according to claim 1 , wherein two exterior surfaces of the holding element each have an elevation, each of which is guided in a complementary groove of a frame element surrounding the holding element.

9. The restraint system according to claim 1 , wherein a first tensioning roller for the guide belt element is arranged in a first tensioning section of the guideway between the adjustment section and the friction section, and a second tensioning roller for the guide belt element is arranged in a second tensioning section of the guideway between the adjustment section and the friction section, the first tensioning section and the second tensioning section being arranged opposite one another.

10. A restraint system for a vehicle seat, comprising:
a webbing belt element for restraining an occupant of the vehicle seat, further comprising a guide belt element which is guided continuously on a guideway, a holding element being positionally secure connected to a first section of the guide belt element,
wherein the webbing belt element is guided passing through a cutout in the holding element,
wherein by means of a movement of the guide belt element, which is self-contained, on the guide-way in a first direction of rotation, the holding element is continuously adjustable within an adjustment section of the guideway from a second maximum position to a first maximum position,
wherein at least one of: a) the webbing belt element is guided passing through a cutout in the first section of the guide belt element; and b) the cutout of the guide belt element and the cutout of the holding element are arranged to overlap one another.

11. The restraint system according to claim 10 , wherein at least one of a longitudinal extension of the cutout of the guide belt element and a longitudinal extension of the cutout of the holding element are arranged at an acute angle relative to the first direction of rotation, and wherein an extent of the holding element in a direction parallel to the first direction of rotation is greater on a first side than on a second side.

12. The restraint system according to claim 10 , wherein two exterior surfaces of the holding element each have an elevation, each of which is guided in a complementary groove of a frame element surrounding the holding element.

13. The restraint system according to claim 10 , wherein an extent of the holding element in a direction parallel to the first direction of rotation is greater on a first side than on a second side.

14. The restraint system according to claim 10 , wherein at least one of a longitudinal extension of the cutout of the guide belt element or a longitudinal extension of the cutout of the holding element are arranged at an acute angle relative to the first direction of rotation.

15. A restraint system for a vehicle seat, comprising:
a webbing belt element for restraining an occupant of the vehicle seat, further comprising a guide belt element which is guided continuously on a guideway, a holding element being positionally secure connected to a first section of the guide belt element,
wherein the webbing belt element is guided passing through a cutout in the holding element,
wherein by means of a movement of the guide belt element, which is self-contained, on the guide-way in a first direction of rotation, the holding element is continuously adjustable within an adjustment section of the guideway from a second maximum position to a first maximum position,
wherein two exterior surfaces of the holding element each have an elevation, each of which is guided in a complementary groove of a frame element surrounding the holding element.

Assignees

• Grammer Ag

Inventors

• Pelka Joachim

Classifications

• B60N2/688 Primary

  Particular seat belt attachment and guiding · CPC title

• B60R2022/1825

  using rollers · CPC title

• B60R22/201 Primary

  with the belt anchor connected to a slider movable in a vehicle-mounted track (for passive restraint systems B60R22/06) · CPC title

• B60R2022/207

  Horizontally or transversally adjustable · CPC title

• B60R2022/1831

  comprising a slotted plate sliding in its plane, e.g. inside circular guides · CPC title