SAFETY BELT DEVICE IN A VEHICLE

• US 20160159315A1
• Filed: 02/16/2016
• Published: 06/09/2016
• Est. Priority Date: 08/16/2013
• Status: Active Grant

• Current Assignee: Volkswagen AG
• Original Assignee: Volkswagen AG
• Inventors: Moeker, Carsten, Meyner, Tom
• Granted Patent: US 9,821,757 B2
• Time in Patent Office: Days
• CPC Class Codes: A44B 11/2553 Attachment of buckle to strap
• CPC Class Codes: A44B 11/2561 Tongue elements
• CPC Class Codes: A44B 11/2569 Safety measures buckles for releasing in a vehicle emergency B60R22/32; control, alarm, or interlock systems for the correct application of safety belt buckles in vehicles B60R22/48
• CPC Class Codes: B60R 2022/1812 Connections between seat belt and buckle tongue
• CPC Class Codes: B60R 22/18 Anchoring devices
• CPC Class Codes: B60R 22/1855 the means being sensitive to belt tension

Abstract

A belt fitting for a safety belt device in a vehicle that includes a base segment and an insertion tongue connected thereto, in which base segment a belt eye is provided, through which a belt webbing is guided and divides the belt webbing into a shoulder belt segment and a lap belt segment when the safety belt is worn. The belt fitting has a clamping element movable between a release position, such that the belt webbing is freely movable in sliding contact over at least one belt running surface, and a clamping position, in which the belt webbing is tightly clamped between a clamping stop on the base segment and the clamping element in the event of a load or crash. The belt running surface of the belt fitting has a surface contour, which ensures stable transverse guidance of the belt webbing in the event of a load.

Claims

1. A belt fitting for a safety belt device in a vehicle, the belt fitting comprising:

a base segment and an insertion tongue connected thereto, in which base section a belt eye is provided through which a belt webbing is guided and which divides the belt webbing into a shoulder belt segment and a lap belt segment when the safety belt is buckled; and

a clamping element that is adjustable between a release position, in which the belt webbing is freely movable in sliding contact over at least one belt running surface of the belt fitting, and a clamping position, in which the belt webbing is tightly clamped between a clamping stop on the base segment and the clamping element in the event of a load or a crash,

wherein the belt running surface of the belt fitting has a surface contour that ensures a stable transverse guidance of the belt webbing in the event of a load or crash if the belt webbing is not yet tightly clamped, the transverse guidance counteracting a transverse force component that acts upon the belt webbing.

2. The belt fitting according to in claim 1, wherein the surface contour includes indentations, furrows or grooves and/or cross-furrows oriented in the longitudinal direction of the belt webbing.

3. The belt fitting according to claim 1, wherein the belt running surfaces are provided on opposite sides of the belt eye, viewed in a longitudinal direction of the belt webbing, wherein the belt running surfaces are formed on the clamping element and/or on the belt fitting base section, and wherein the belt running surfaces are each provided with the surface contour.

4. The belt fitting according to claim 2, wherein the indentations of the surface contour are each approximately 2.5 mm wide and approximately 1.5 mm deep, and/or wherein the groove-shaped indentations are open counter to the direction of movement of the belt webbing such that they have no limiting wall on a front side.

5. The belt fitting according to claim 1, wherein the clamping element is pivotable around a rotation axis between the release position and the clamping position and may be elastically pretensioned in a direction of the release position, and wherein the clamping element is pivotable into the clamping position in a rotation direction in the event of a load when higher belt forces are applied to the belt webbing.

6. The belt fitting according to claim 1, wherein the clamping element has a clamping contour with the aid of which the belt webbing may be tightly clamped in the clamping position.

7. The belt fitting according to claim 6, wherein the clamping element has both a belt running surface, including the surface contour, and the clamping contour, and wherein the surface contour is disposed on the clamping element in a leading manner and the clamping contour is disposed thereon in a trailing manner, viewed in a rotation direction.

8. The belt fitting according to claim 1, wherein the surface contour extends continuously over the entire belt webbing width in the belt transverse direction.

9. A safety belt device for a vehicle, comprising a belt fitting according to claim 1.