Lock deflection device

• US 8,312,604 B2
• Filed: 01/13/2011
• Issued: 11/20/2012
• Est. Priority Date: 08/13/2008
• Status: Expired due to Fees

• Current Assignee: Takata - Petri AG (Ningbo Junsheng Investment Group Co., Ltd.)
• Original Assignee: Takata AG (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Heym, Axel, Yoshikawa, Hiromichi
• Primary Examiner(s): Lavinder, Jack W.
• Application Number:
  US13/006,242
• Publication Number:
  US 20110107561A1
• Time in Patent Office: 677 Days
• Field of Search: None
• US Class Current: 24/593.1
• CPC Class Codes: A44B 11/2561 Tongue elements
• CPC Class Codes: B60R 22/1855 the means being sensitive to belt tension
• CPC Class Codes: Y10T 24/4007 Lock
• CPC Class Codes: Y10T 24/45241 Slot and tab or tongue

Abstract

A lock deflection device for a motor vehicle for deflecting a seat belt comprises a lock tongue for insertion into a lock buckle and a first contact area connected to the lock tongue around which the seat belt can be laid to deflect the seat belt, so that the seat belt is divided into a shoulder segment and a pelvis segment, which go off in different directions from the first contact area, wherein the first contact area can be moved from an initial position, in which the seat belt can slide along on the deflection device, into a final position. According to the invention, a second contact area connected to the lock tongue is provided, which is arranged to contact the seat belt in case of a first contact area being moved out of the initial position, in order to restrain the seat belt from sliding along on the deflection device, wherein the first contact area is connected to the lock tongue through a movable area of the lock deflection device.

Claims

1. A lock deflection device for a motor vehicle for deflecting a seat belt, comprising:

a lock tongue for insertion into a lock buckle;

a first contact area connected to the lock tongue around which the seat belt can be laid to deflect the seat belt, so that the seat belt is divided into a shoulder segment and a pelvis segment, which go off in different directions from the first contact area, wherein the first contact area can be moved from an initial position, in which the seat belt can slide along on the deflection device, into a final position; and

a second contact area connected to the lock tongue, which is arranged to contact the seat belt after the first contact area is moved out of the initial position, in order to restrain the seat belt from sliding along on the deflection device,

wherein the first contact area is connected to the lock tongue through a movable area of the lock deflection device,

wherein the movable area is designed to interact with the seat belt in a way that the movable area performs a movement due to a force acting on the shoulder segment such that the first contact area is taken along from the initial position to the final position,

wherein the movement comprises a deformation of the movable area accompanied by a pivoting movement, and

wherein the first contact area is integrally formed with the movable area.

2. The lock deflection device as claimed in claim 1, wherein upon movement of the first contact area into the final position, the second contact area is not changed in its position with respect to the lock tongue.

3. The lock deflection device as claimed in claim 1, wherein the first contact area is integrally formed with the lock tongue through the movable area.

4. The lock deflection device as claimed in claim 1, wherein the lock deflection device comprises a carrier part for carrying the movable area, wherein the second contact area is provided on the carrier part, and wherein the lock tongue goes off from said carrier part.

5. The lock deflection device as claimed in claim 4, wherein the movable area is designed as a separate part that is connected to the carrier part through a welded connection, a rivet connection or a screw connection.

6. The lock deflection device as claimed in claim 4, wherein the movable area comprises a central bar from which two side arms go off, each of which comprises a free end region, and wherein the movable area is connected to the carrier part through the free end regions of the side arms.

7. The lock deflection device as claimed in claim 4, wherein the first contact area or the movable area is connected to the carrier part or the lock tongue in the initial position by a connection, in order to arrest the first contact area in its initial position.

8. The lock deflection device as claimed in claim 1, wherein the movable area is integrally formed with the carrier part or is integrally formed with the lock tongue through the carrier part.

9. The lock deflection device as claimed in claim 1, wherein the first contact area is formed at a through-opening of the lock deflection device, through which the seat belt can be passed.

10. The lock deflection device as claimed in claim 9, wherein the through-opening is formed in the movable area.

11. The lock deflection device as claimed in claim 1, wherein the second contact area is integrally formed with the lock tongue.

12. The lock deflection device as claimed in claim 1, wherein the second contact area is formed as a separate part that is releasably connected to the lock tongue by screwing, or non-releasably by spraying, casting, welding or riveting.

13. The lock deflection device as claimed in claim 1, wherein the second contact area comprises a structured surface for increasing the friction between the second contact area and the seat belt.

14. The lock deflection device as claimed in claim 1, wherein the deflection device comprises a base body that is punched-out of a metal blank.

15. The lock deflection device as claimed in claim 14, wherein the base body is formed by a carrier part and the lock tongue going off therefrom.

16. The lock deflection device as claimed in claim 14, wherein the base body comprises a carrier part, the lock tongue, the movable area, and the first and second contact areas.

17. The lock deflection device as claimed in claim 14, wherein the base body is surrounded by a covering at least in sections, the covering being made out of a plastic.