AUTOMOTIVE SEATS WITH SAFETY HARNESSES

• US 3,734,562 A
• Filed: 06/28/1971
• Issued: 05/22/1973
• Est. Priority Date: 08/11/1970
• Status: Expired due to Term

• Current Assignee: Francois Fourrey
• Original Assignee: Francois Fourrey
• Inventors: Fourrey, Francois
• Primary Examiner(s): McCall, James T.
• Application Number:
  US05/157,462
• Time in Patent Office: 694 Days
• Field of Search: 297/216,386,389,385,378 280/15SB 188/1C
• US Class Current: 297/216.19
• CPC Class Codes: B60N 2/4221 due to impact coming from the front
• CPC Class Codes: B60N 2/42736 of the whole seat
• CPC Class Codes: B60N 2/42745 of the back-rest B60N2/433 takes precedence; higher part of the back-rest moving together with the headrest B60N2/888
• CPC Class Codes: B60R 22/26 secured to the seat

Abstract

A seat provided with a safety harness, notably for automotive vehicles and of the type comprising a squab, a back provided with at least one anchor point for the shoulder-belt of said safety harness, said anchor point being located on the rear face of said back, an abdominal belt connected to said shoulder-belt, at least one kinetic energy absorption device interposed between said squab and a seat element adapted, in case of crash, to move in relation to said squab, said device being adapted, during this relative movement, to absorb one fraction of the kinetic energy and wherein the anchor point located on said back is connected through said shoulder-belt to the abdominal belt of the safety harness, characterized in that at least one end of said abdominal belt is connected to the seat element movable in relation to the squab during a crash and that said seat element is mechanically connected to said squab in a manner known per se.

Claims

1. A seat, having a safety harness including a shoulder belt, for use primarily in automotive vehicles, comprising a back, having at least one anchor point for the shoulder belt, said anchor point being located on the rear of said back;

an abdominal belt, connected to said shoulder-belt, wherein the anchor point located on said back is connected through said shoulder-belt to the abdominal belt;

a holder for the abdominal belt, having at least one end of the abdominal belt connected thereto;

a squab which is movable in relation to said holder; and

kinetic energy absorption means, connected between said squab and said holder, for absorbing a fraction of the kinetic energy When relative movement between the squab and the holder occurs.

2. A seat according to claim 1 wherein the holder to which one end of the abdominal belt is connected comprises a slide-bar through which the seat is adjustably connected to the floor structure of the vehicle.

3. A seat according to claim 1 wherein the holder to which one end of the abdominal belt is connected is positioned near the lower end of the back, said back being pivoted to said squab about an axis located above the point where the holder is positioned.

4. A seat according to claim 2 wherein said kinetic energy absorption means has two connection points located respectively, near front portions of said squab and said slide-bar.

5. A seat according to claim 3, wherein said kinetic energy absorption means is connected near the rear portion of the squab and near the lower portion of the back, respectively, said back being hingedly connected to said squab about said axis.

6. A seat according to claim 2 wherein the kinetic energy absorption means comprises an extensible diagonal strip of a quadrilateral wherein the sides comprise the rear lateral portion of the squab, the lower lateral portion of the back, which lies below the squab plane, the slide-bar and the front leg of said squab.

7. A seat according to claim 6, wherein a pivot axis of said back on said slide-bar is coincident with at least one connection point of said abdominal belt and with a connection point of the kinetic energy a absorption means.

8. A seat according to claim 7, wherein said pivot axis of said back on said slide-bar comprises a seat unlocking pin engaging a fitting rigid with the chassis of the vehicle.