Vehicle seat with integral seat belt mechanism

• US 20050134099A1
• Filed: 06/01/2004
• Published: 06/23/2005
• Est. Priority Date: 05/30/2003
• Status: Active Grant

• Current Assignee: TS Tech Company Limited
• Original Assignee: TS Tech Company Limited
• Inventors: Masutani, Eiji
• Granted Patent: US 7,036,878 B2
• Time in Patent Office: Days
• US Class Current: 297/216.100
• CPC Class Codes: B60N 2/0732 Attachment of seat frame to the slide, e.g. eyelets
• CPC Class Codes: B60N 2/1615 Parallelogram-like structure
• CPC Class Codes: B60N 2/43 Safety locks for back-rests B60N2/433
• CPC Class Codes: B60R 22/26 secured to the seat

Abstract

A vehicle seat has a seat bottom frame, a seat back frame rotatably attached to the seat bottom frame, a lower rail fixed to a vehicle body, an upper rail slidably attached to the lower rail, and a height control mechanism and a height lock mechanism provided between the upper rail and the seat bottom frame. A belt retractor of a seat belt mechanism is fixed to the bottom frame or the back frame. A tip anchor and a tongue anchor of the seat belt mechanism are coupled to the upper rail.

Claims

1. A vehicle seat with an integral seat belt mechanism comprising:

a framework having a seat bottom frame and a seat back frame rotatably attached to the seat bottom frame;

a slide mechanism having a lower rail fixed to a vehicle body and an upper rail slidably attached to the lower rail;

a height control mechanism provided between the upper rail and the seat bottom frame,

a seat belt;

a belt retractor coupled to a base part of the seat belt;

a tip anchor coupled to a tip of the seat belt;

a tongue anchor detachably engaged with a tongue plate attached to a midpoint of the seat belt; and

a height lock mechanism provided between the upper rail and the seat bottom frame;

wherein said belt retractor is fixed to the framework;

wherein said tip anchor and said tongue anchor are attached to the upper rail.

2. A vehicle seat with an integral seat belt mechanism according to claim 1, wherein said height lock mechanism has a lock link pivotally supported to the seat bottom frame and the upper rail, respectively and an engaging arm that is coupled to the tip anchor, and rotates to engage with the lock link when impact load is applied to the seat belt, and said engaging arm is rotatably attached to the upper rail.

3. A vehicle seat with an integral seat belt mechanism according to claim 2, wherein an upper part of said lock link is rotatably attached to the seat bottom frame with an upper lock shaft, a lower part of the lock link is rotatably attached to the upper rail with a lower lock shaft and the lock link has a lock gear with which the hook is engaged, said lock gear is formed in a shape like an arc having the lower lock shaft as its center.

4. A vehicle seat with an integral seat belt mechanism according to claim 3, wherein said lock gear is positioned in the underside of the lower lock shaft.

5. A vehicle seat with an integral seat belt mechanism according to claim 3, wherein said lock gear is positioned in the rearward of the lower lock shaft.

6. A vehicle seat with an integral seat belt mechanism according to claim 3, wherein said hook is positioned in the rearward of the lock gear.