FIELD: transport.
SUBSTANCE: invention relates to wheeled vehicles. Proposed bolster consists of a ball with drawbar secured at the vehicle to interact with trailer hitch hemispherical head. Ball and pin are made of elastic material with through slot made in their lengthwise vertical mirror plate. Spring-loaded ball retainers are fitted in every of ball two parts formed by said slot to interact with the bore of trapezoidal thrust with sharpened end fixed at inner generating surface of the hitch hemispherical head top part. Width of said through slot is smaller than thickness of aforesaid thrust.
EFFECT: simplified design, higher reliability of linkage.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROAD TRAIN HITCH DEVICE | 2020 |
|
RU2730121C1 |
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|
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| TOWING COUPLING DEVICE OF LIGHT-WEIGHT ROAD TRAIN | 2019 |
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| TOW UNIT OF A LIGHTWEIGHT ROAD-TRAIN | 2015 |
|
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| TOWING-COUPLING DEVICE | 2019 |
|
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| TRAILER-TRAIN DRAW-AND-COUPLED GEAR | 2005 |
|
RU2293661C1 |
| DRAW-AND-COUPLING GEAR | 2005 |
|
RU2290322C1 |
| LIGHT WEIGHT ROAD-TRAIN DRAWBAR | 2019 |
|
RU2726486C1 |
| CAR-AND-TRAILER COUPLER GEAR | 2002 |
|
RU2230675C1 |
| ROAD TRAIN DRAWBAR | 2009 |
|
RU2397883C1 |
