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Railway car truck with a rocker seat

Imported: 24 Feb '17 | Published: 06 Jan '04

Hans B. Weber, Scott R. Duncan

USPTO - Utility Patents

Abstract

A railway car truck having a pair of side frames and a bolster and a transom extending transversely between the side frames. A respective rocker seat is rigidly and permanently attached to each end of the transom and is pivotally supported on a rocker bar that is supported by the tension member of a sideframe. The pivotal connection between the rocker seat and the rocker bar disposes the transom perpendicular to the side frame and provides pivotal movement of the side frame with respect to the transom. The railway car truck is assembled by inserting the ends of the bolster and transom into the window of a side frame, and then inserting the rocker bar through a passageway in the side frame to a position under the rocker seat and on the bottom tension member of the side frame. Springs are then inserted between the transom and the bolster such that the bolster is resiliently supported on the side frame.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partial top plan view of the railway car truck of the present invention.

FIG. 2 is a partial cross sectional side view taken along line

2

2 of FIG.

1.

FIG. 3 is a partial cross sectional side view of the railway car truck.

FIG. 4 is a partial cross sectional view taken along line

4

4 of FIG.

3.

FIG. 5 is a partial cross sectional view taken along line

5

5 of FIG.

2.

FIG. 6 is a partial cross sectional view of the side frame taken through the window of the side frame.

FIG. 7 is a partial cross sectional view taken along line

7

7 of FIG.

5.

FIG. 8 is a top plan view of the transom of the railway car truck.

FIG. 9 is a side elevational view taken along line

9

9 of FIG.

8.

FIG. 10 is an end view taken along line

10

10 of FIG.

9.

FIG. 11 is a partial cross sectional view showing the connection of the rocker seat to the transom.

FIG. 12 is an end view taken along line

12

12 of FIG.

11.

FIG. 13 is a bottom view taken along lines

13

13 of FIG.

11.

FIG. 14 is a top plan view of the rocker seat.

FIG. 15 is a side elevational view of the rocker seat taken along line

15

15 of FIG.

14.

FIG. 16 is a side elevational view taken along line

16

16 of FIG.

15.

FIG. 17 is a top plan view of the rocker bar.

FIG. 18 is a side elevational view of the rocker bar taken along line

18

18 of FIG.

17.

FIG. 19 is an end view of the rocker bar taken along line

19

19 of FIG.

18.

Claims

1. A railway car truck comprising:

2. The railway car truck of claim 1, wherein said bottom tension member includes a second pocket, said first and second pockets adapted to receive respective ends of said rocker bar and adapted to prevent longitudinal movement of said rocker bar with respect to side frame.

3. The railway car truck of claim 1 wherein said concave bearing surface and said convex bearing surface are each generically cylindrical-shaped.

4. The railway car truck of claim 1 wherein said rocker bearing includes first and second downwardly extending skirts, each said skirt being located on a respective side of said concave bearing surface, said skirts adapted to prevent inadvertent disengagement of said rocker bar from said rocker seat.

5. The railway car truck of claim 1 wherein said rocker seat includes a plate adapted to be attached to said transom, said rocker bearing being attached to said plate.

6. The railway car truck of claim 1 wherein said rocker bar includes a stop member adapted to engage said rocker seat to prevent longitudinal movement of said rocker seat with respect to said side frame.

7. The railway car truck of claim 1 including a bolster having a first end and a second end, said bolster being located above said transom with said first end of said bolster located in said window, and a plurality of springs extending between said first end of said transom and said first end of said bolster.

8. A rocker bar adapted to be removably supported on the bottom tension member of a side frame and to pivotally engage a rocker seat, said rocker bar comprising: