Method of constructing suspension assemblies

• US 3,406,439 A
• Filed: 09/16/1966
• Issued: 10/22/1968
• Est. Priority Date: 06/15/1965
• Status: Expired due to Term

• Current Assignee: Charles T. Hutchens
• Original Assignee: Charles T. Hutchens
• Inventors: Hutchens, Charles T.
• Application Number:
  US04/579,929
• Time in Patent Office: 767 Days
• US Class Current: 29/897.2
• CPC Class Codes: B60G 2200/31 with two trailing arms rigidly connected to the axle
• CPC Class Codes: B60G 2200/462 Toe-in/out
• CPC Class Codes: B60G 2200/4622 Alignment adjustment
• CPC Class Codes: B60G 2204/14 Mounting of suspension arms
• CPC Class Codes: B60G 2204/143 on the vehicle body or chassis
• CPC Class Codes: B60G 2204/148 on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
• CPC Class Codes: B60G 2204/41 Elastic mounts, e.g. bushings
• CPC Class Codes: B60G 2204/4302 for fixing suspension arm on the vehicle body or chassis
• CPC Class Codes: B60G 2204/4306 Bracket or knuckle for rigid axles, e.g. for clamping
• CPC Class Codes: B60G 2204/44 Centering or positioning means
• CPC Class Codes: B60G 2204/61 Adjustable during maintenance
• CPC Class Codes: B60G 2206/11 the arm being a radius or track or torque or steering rod or stabiliser end link
• CPC Class Codes: B60G 2206/60 Subframe construction
• CPC Class Codes: B60G 5/047 at least one arm being resilient, e.g. a leafspring B60G5/053 takes precedence
• CPC Class Codes: B61F 5/52 Bogie frames
• CPC Class Codes: Y10T 29/49622 Vehicular structural member making

Claims

1. A PROCESS FOR PRODUCING A SUSPENSION COMPONENT WHICH COMPRISES THE STEPS OF PROVIDING A SINGLE SHEET OF SUBSTANTIALLY FLAT METAL PLATE, BLANKING A TENDEM SIDE RAIL FROM SAID PLATE, SAID SIDE RAIL COMPRISING A SUBSTANTIALLY FLAT PLANE OF SUBSTANTIALLY RECTANGULAR SHAPE, SAID SIDE RAIL INCLUDING A PLURALITY OF HANGER SECTIONS DEPENDING THEREFROM WITH A HANGER SECTION SUBSTANTIALLY DISPOSED AT EACH END THEREOF, EACH HANGER SECTION HAVING A SHAPE THAT DECREASES IN CROSS SECTION FROM TOP TO BOTTOM, ENDING IN A ROUNDED BOTTOM EDGE;

SIMULTANEOUSLY FORMING AN INTEGRAL LINING FLANGE COMPRISES A CURVE THAT SWEEPS FROM THE PLANE THE BOTTOM AND SIDE EDGES SUCH THAT IN CROSS SECTION THE LINING FLANGE COMPRISES A CURVE THAT SWEEPS FROM THE PLANE OF THE HANGER SECTION AND TERMINATES IN A STRAIGHT LINE THAT IS ORINETED AT AN ANGLE APPROACHING 90* WITH RESPECT TO THE PLANE OF THE HANGER SECTION;

AND THEN FORMING UPPER AND LOWER RIGIDIFYING CHANNELS IN THE SIDE RAIL BY BRAKING THE UPPER EDGE OF THE SIDE RAIL, AND BY BRAKING THE LOWER EDGE OF THE SIDE RAIL IN AREAS OTHER THAN SAID HANGER SECTIONS, SAID REGIDIFYING CHANNELS BEING DISPOSED IN A DIRECTION THAT IS OPPOSITE TO THE DIRECTION OF SAID LINING FLANGE.