SEATS FOR MOTOR VEHICLES

• US 3,711,153 A
• Filed: 02/12/1971
• Issued: 01/16/1973
• Est. Priority Date: 02/24/1970
• Status: Expired due to Term

• Current Assignee: Douglas James Cunningham
• Original Assignee: Douglas James Cunningham
• Inventors: Cunningham, Douglas James
• Primary Examiner(s): Zugel, Francis K.
• Application Number:
  US05/114,779
• Time in Patent Office: 704 Days
• Field of Search: 297/346,216 248/395,393,419,421,423,424,377
• US Class Current: 297/344.14
• CPC Class Codes: B60N 2/045 Longitudinal adjustment by means of articulated rods supporting the seat, e.g. parallelogram mechanisms B60N2/38 takes precedence

Abstract

In a vehicle seat which is adjustable in a fore-and-aft direction the rear end of the seat frame is carried at each side by a support member which is pivotally connected to said frame and to a floor anchorage and is also selectively connected to the said frame at any one of a plurality of points spaced from their pivotal connection.

Claims

1. A vehicle seat which is adjustable in a fore-and-aft direction and comprises a seat frame and a back frame wherein the rear end of the seat frame is pivotally connected at each side to a support member which is pivotally connected to a floor anchorage and is also connected to the support member by a releasable pin extending through a hole in the support member and through any selected one of a series of holes in the frame concentric about and spaced from the pivotal connection between the frame and the support member, the support member incorporating at least one part which is inclined forwardly from the floor anchorage in all selected position of the seat and in which said hole is located in order that inertia forces on the seat in the event of sudden deceleration of the vehicle are taken in tension by the seat frame and support member.

2. A vehicle seat as in claim 1 wherein the forwardly inclined part is inextensible.

3. A vehicle seat as in claim 1 wherein the front of the seat frame is supported by pegs which are carried by upstanding legs fixed to the floor and are adapted to slide in slots in the seat frame.

4. A vehicle seat as in claim 2 wherein the releasable pins on both sides of the seat are operated by means located below the seat and actuated from a convenient point.

5. A vehicle seat as in claim 1 wherein a frame for a back has a pivotal connection at its lower end with the seat frame and a stay rigidly secured to the back frame and inclined at a small angle thereto is connected to the seat frame at a point spaced from said pivotal connection by adjustable means providing for angular adjustment of the back frame about said pivotal connection.

6. A vehicle seat as in claim 5 wherein said means for adjustably connecting the stay to the seat frame are releasable to allow the back frame to be swung over forwardly and rearwardly through a substantial angle about its pivotal connection to the seat frame.

7. A vehicle seat as in claim 5 wherein the pivotal connections between the seat frame and the support member and between the back frame and the seat frame are formed by a common pin.

8. A vehicle seat as in claim 1 wherein the front of the seat frame is supported by legs of which opposite ends are pivotally connected to the seat frame and to brackets fixed to the floor.

9. A vehicle seat as in claim 1 wherein one or each side member of the seat frame incorporates means for the connection to it of a part of a safety belt assembly, the position of the connection or connections being such that a pull on the belt is transmitted to the floor anchorages for the support members.