Belt Tongue Comprising A Torsion Bar

• US 20170297528A1
• Filed: 09/30/2015
• Published: 10/19/2017
• Est. Priority Date: 09/30/2014
• Status: Active Grant

• Current Assignee: Autoliv AB (Autoliv Incorporated)
• Original Assignee: Autoliv AB (Autoliv Incorporated)
• Inventors: Hermann, Michel, Grikschat, Martin, Krambeck, Inga, Cord, Hans-Jrg
• Granted Patent: US 10,442,394 B2
• Time in Patent Office: Days
• CPC Class Codes: A44B 11/2557 with strap length adjustment
• CPC Class Codes: A44B 11/2561 Tongue elements
• CPC Class Codes: B60R 2022/1812 Connections between seat belt and buckle tongue
• CPC Class Codes: B60R 22/1855 the means being sensitive to belt tension

Abstract

A belt tongue having a tongue body, a clamping element in the tongue body, a belt webbing guided through a cavity in the tongue body and running through a gap between the clamping element and the tongue body. The belt webbing can be moved though the tongue body in an unstressed position and, in a stressed position is brought about by a tensile force on the belt webbing, is clamped on a clamping edge of the cavity by the clamping element that is pivotally mounted in the tongue. Laterally to the clamping element, guide sections are arranged, between which the belt webbing runs, so that the belt webbing in the lateral region of the cavity does not go between the clamping element and the tongue body. The cavity forms cavities laterally from the clamping edge.

Claims

1. A belt tongue for a belt webbing comprising a tongue body extending in an insertion direction, a clamping element arranged in the tongue body such that the belt strap guided through a cavity in the tongue body and running through a gap that is formed between the clamping element and the tongue body can be moved though the tongue body in an unstressed free-running position and, in a stressed position brought about by a tensile force applied to the belt webbing, is clamped on a clamping edge of the cavity by the clamping element that is pivotally mounted in the tongue body and can be pivoted into the cavity, laterally to the clamping element guide sections are arranged, between which the belt webbing runs, so that the belt in the lateral regions of the cavity does not go between the clamping element and the tongue body, wherein the cavity forms cavity portions formed laterally from the clamping edge (8) and directed in the insertion direction, in which the guide sections of the clamping element are arranged at least in the stressed position.

5. A belt tongue according to claim 1, further comprising the clamping element is pivotably mounted by a torsion element that is non-rotatably secured in the tongue body and non-rotatably connected to the clamping element, which torsion element in the stressed position applies a reset force on the clamping element in the direction of the free-running position of the clamping element.

6. A belt tongue according to claim 5, further comprising the torsion element is non-rotatably mounted only on one side of the tongue body and is connected to the clamping element only on the side of the clamping element that is not assigned to the side of the tongue body secured with the torsion element.

7. A belt tongue according to claim 1 further comprising, on the tongue body least one lug projecting into the cavity is formed, and on the clamping element at least one groove, with which the lug engages at least during the pivoting movement, so that in the stressed position the lug on a front surface of the groove comes in contact with the clamping element and thus the pivoting motion of the clamping element is limited.

8. A belt tongue according to claim 5, further comprising in that a guide element laterally projects from both guide sections, which are arranged in the receptacles that receive the torsion element and at least partially encompass guide recesses in the tongue body, wherein the guide elements and the guide recesses are shaped such that the pivoting motion of the clamping element is guided by the guide elements moved in the guide recesses.

9. A belt tongue according to claim 8, further comprising a straight installation recess extending to an edge of the tongue body connects to the guide recesses, by which the clamping element is linearly displaced during installation with the guide element and due to subsequent pivoting is secured against a reverse displacement.

10. A belt tongue according to claim 1, further comprising the belt webbing is drawn transversely to the insertion direction through the cavity in the tongue body.

2. The belt tongue according to claim 2, further comprising laterally on both sides of the clamping element, one cam each projecting from the pivot axis of the clamping element in one direction is formed, adjacent to a pivot bearing of the clamping element, and is provided with at least one spring element, which spring element applies a reset force on the cams on the clamping element in the direction of the free-running position of the clamping element.

3. The belt tongue according to claim 2, further comprising the spring element is a leaf spring supported on a stop configured on the tongue body.

4. A belt tongue according to claim 2, further comprising the spring element is configured in a form-fit manner with the tongue body.

11. A belt tongue according to claim 3, further comprising the leaf spring further forming a pair of hands engaging with a cam surface formed by the clamping element at near the lateral ends of the clamping element.