| 摘要 |
This invention relates to a draft gear device for rapid transit passenger cars in which the cushioning member constitutes a rubber or other elastomeric element subject to shear in response to the application of both draft and buff forces to a car coupler. The rubber or elastomeric element is bonded to a pair of parallel spaced-apart plates that constitute the shank of a car coupler and a third plate disposed therebetween and integral with one side of a hub of a drawbar. Extending from the opposite side of this hub, which has a pivotal connection with the car underframe, is a fan-shaped coupler-carrier element between which and the car underframe is a pair of spaced-apart resilient support elements that are normally effective to bias the car coupler to a horizontal position and provide for a limited vertical movement therefrom in either direction or for horizontal angular movement of the drawbar and coupler about their pivotal connection with the car underframe. Release means in the form of tension-breakable bolts are provided between the drawbar and the underframe which bolts break upon the application of excessive buff forces to provide for movement of the drawbar relative to the underframe until the anticlimbing plates on two adjacent cars are moved into engagement one with the other. |
