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Slackless railway coupler with draft/buff gear
| Details |
Inventors: Kaufhold, Horst T.; Steffen, John J.; Jarvis, David J.; Anderson, David G.; Butler, Ronald G.;
Assignee: AMSTED Industries Incorporated (Chicago, IL)
Primary Examiner: Butler; Douglas C.
Assistant Examiner: Morano; Joseph
Attorney, Agent or Firm: Brosius; Edward J., Gregorczyk; F. S., Schab; Thomas J.
A slackless railcar coupler assembly, which is mountable in a railcar center sill, has a draft gear subassembly operable against a rear stop, and a slackfree coupler apparatus mounted in a coupler pocket forward of said draft gear subassembly, which subassembly and apparatus are connected to provide a dynamic load in both the buff and draft directions to avoid a mechanical, longitudinal stress load on the coupler assembly and railway car. |
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DETAILED DESCRIPTION OF THE INVENTION A railway car standard coupler assembly 10 in FIGS.
1 and 2 has a slackfree apparatus 12 to minimize free play in coupler assembly 10, and a buff/draft gear apparatus 14 to accommodate dynamic shock loading of coupler 16 in both the buff and draft directions of travel along coupler-arm longitudinal axis 18.
Coupler arm 22 extends along axis 18 from knuckle 20 into pocket 26 of center sill 24.
Knuckle 20 is matable with a similar or mating member protruding from a second railway car or locomotive to connect the cars for travel along railway tracks, which railway cars and tracks are not shown, but are known in the art.
Slackfree coupler apparatus 12 minimizes the free travel of coupler 16 in the draft direction of railway car travel through automatic adjustment of apparatus 12.
More specifically, arm 22 has forward end 28 connected to knuckle 20, and a rear or butt end 30 with an arcuate shape in the horizontal direction.
Upper surface 32 and lower surface 34 of arm 22 are generally planar, however, their specific shape is not a limitation to the present invention.
Arm 22 and particularly its butt end 30 extend into pocket casting 36 mounted in center sill pocket 26.
Center sill 24 has first sidewall 38, second sidewall 40 and top wall 42 in FIG.
2, which cooperate to provide center-sill pocket 26.
At least one support 44 extends across lower edges 46 and 48 of first and second sidewalls 38 and 40 to provide an essentially closed pocket 26 in center sill 24 to receive draft/buff gear 14 and coupler arm 22.
In FIG.
2, arm 22 at butt end 30 has a vertical connecting-pin bore 50, which is transverse to axis 18 in this figure and about normal to upper surface 32 and lower surface 34.
Pocket casting 36 is connected to buff/draft gear apparatus 14 and arm 22 to provide a slidable connection between these components.
Pocket casting 36 with chamber 37 has upper wall 52 with first passage 54 and lower wall 56 with second passage 58, which passages 54 and 58 are aligned
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