Attachment construction for seat belt system provided with pretensioner mechanism

• US 20070029774A1
• Filed: 06/14/2006
• Published: 02/08/2007
• Est. Priority Date: 08/05/2005
• Status: Active Grant

• Current Assignee: Suzuki Motor Corporation
• Original Assignee: Suzuki Motor Corporation
• Inventors: Kuroki, Yohei
• Granted Patent: US 7,618,064 B2
• Time in Patent Office: Days
• US Class Current: 280/806
• CPC Class Codes: B60R 22/1955 Linear actuators

Abstract

The present invention provides an attachment construction for a seat belt system provided with a pretensioner mechanism, in which a lap anchor in a locking portion for fixing one end of a seat belt to a vehicle body has a gas generator and a tubular cylinder portion. The cylinder portion or the cylinder portion and the gas generator are arranged between a pillar and a pillar trim covering the cabin side of the pillar.

Claims

1. An attachment construction for a seat belt system provided with a pretensioner mechanism having a gas generator and a tubular cylinder portion connected to the gas generator in a locking portion for fixing one end of a seat belt to a vehicle body, wherein the cylinder portion or the cylinder portion and the gas generator are arranged between a pillar constituting a vehicle side portion and an interior member covering the cabin side of the pillar.

2. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 1, wherein the cylinder portion is arranged so as to extend substantially along an up-and-down direction of the pillar.

3. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 1 or 2, wherein a tip end portion of the cylinder portion is fixed to the pillar via a fixing means.

4. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 3, wherein the cylinder portion is arranged so as to be put across a retractor mounting hole for installing a retractor, which is a winding means for the seat belt.

5. The attachment construction for a seat belt system provided with a pretensioner mechanism according to any one of claims 1 to 4, wherein the locking portion is fixed to the pillar, and the cylinder portion is covered with the interior member together with the locking portion.

6. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 5, wherein a reinforcing member for fixing the retractor is provided on the pillar, and the locking portion is fixed in a range in which the reinforcing member is installed.

7. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 5 or 6, wherein a slit portion having one end open is provided in a lower part of the interior member, the seat belt connected to the locking portion is guided to a cabin inside through the slit portion, and a connection range of the seat belt is arranged so as to be exposed to the cabin inside.

8. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 7, wherein a concave portion facing to an outside in a vehicle width direction is provided in a lower part of the interior member, and the slit portion is provided on a surface continuous from a surface at a position at which a fixing portion of the pillar in the locking portion of the interior member is covered to a bottom surface of the concave portion.

9. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 7 or 8, wherein a position of a terminal edge on an upper side in the slit portion is provided on a line on which a wire connected to the locking portion in a state in which the seat belt system is not worn passes, and a tip end portion of the slit portion is formed into an arcuate shape having a diameter at least larger than the diameter of the wire.

10. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 7 or 8, wherein a convex portion is provided at an intermediate position of an edge portion located on a rear side in a front-and-rear direction of vehicle of the slit portion, the convex portion is provided on a line on which the wire connected to the locking portion in a state in which the seat belt system is worn passes, and a tip end portion of the convex portion is formed into an arcuate shape having a diameter at least larger than the diameter of the wire.

11. The attachment construction for a seat belt system provided with a pretensioner mechanism according to claim 9 or 10, wherein at least any one of a line in an edge portion from a lower end opening portion to the terminal edge at an upper end of the slit portion, a line in the edge portion from the terminal edge to the convex portion, and a line in the edge portion from the convex portion to the lower end opening portion is formed in an arcuate shape such as to be convex toward the inside of the slit portion.