DE394087C - Device for automatically applying the brake for trailer vehicles - Google Patents

Description

GERMAN EMPIRE

ISSUED APRSL 12, 1924

REICH PATENT OFFICE

PATENT LETTERING

- JVi 394087 CLASS 63 c GROUP 3 / Φ%

Societe des Trains Chenard & Walcker F. A. R. in Gennevilliers, France.

Device for automatically applying the brake for trailer vehicles.

Patented in the German Empire on December 15, 1922.

Self-tightening devices

the brake for trailer vehicles in which the drawbar is under spring tension standing buffer rod is connected, which moves lengthways and by means of rope or

Chain to act on the brake levers is known. However, in order to switch off the influence of the springs associated with the brake for normal driving, according to the invention is on the

Claims (1)

894087 Drawbar has a special buffer rod supported against a strong spring, which, directed against the train carriage, constantly seeks to push it back, so that it acts as a safety device to a greater extent for the tension of the rope or chain, in order to avoid an untimely braking effect with disruptive consequences. This device then facilitates the; ίο guiding the wagon train and providing one; Safety not only against accidents, but also against heavy wear and tear on the vehicle material. In the drawing, the subject of the invention is in one embodiment; 1 is shown by a longitudinal view of the trailer coupled to the towing vehicle j. With 1 ! the frame is referred to, on which a screw spindle 2 is arranged in the vertical of the rear wagon wheels, which can be rotated by angular wheels 3, 3 '. A nut 4 sits on the spindle 2, at the lower end of which there is a support ring 5 which serves as a support surface for a clamping hook 6 connected to the front end of the drawbar 7 of the trailer. This tension hook is assigned an automatic effect in that it can move along the drawbar 7: it is also connected to the trailer carriage by means of cables 8, springs g and lever 10: each of the levers 10 is a rod 12 , and ! articulated to this one Hebelsvstem 13, WEL j EHES latter with the free end of ^the: is connected to a drum 15 of the trailer wagon wheels down brake band fourteenth On the drawbar 7, a buffer rod 16 is arranged above the clamping hook, which in bearings 18, 18 the drawbar rests in part by means of its extension rod 17; she is longitudinally displaceable and compresses the spring 19 in one direction, which between a collar 20 and the outer bearing 18 is turned on. This pen is very strong, so that it counteracts the force of the spring 9 balancing, so with normal A certain distance is maintained between the towing vehicle and the trailer vehicle. The operation is the following: If one wants to clamp the trailer car to the carriages, the screw ■ nut 4 is inserted into the clamping hooks 6 and hooked also the rope 8 of the brake of the trailer car. During this process, the buffer rod 16 is pushed back by the towing car, the spring 19 is compressed somewhat, under whose tension the distance between the two carriages is then determined, with the rope 8 for releasing the brake 14 being tensioned at the same time. The train of wagons in this state can now start the journey. During normal travel, the distance between the two cars remains unchanged, but if the driver has reason to brake the first car, the second tries to approach it with his living force, which compresses the spring 19 and relaxes the rope 8 Consequence. At this point in time, the springs 9 can act on the brake 14, to a greater extent than the braking of the first car. If, on the other hand, the train carriage only drives slowly or takes a slope, in weleh If the driver has previously adjusted his engine accordingly, this is sufficient living force of the trailer is not enough to compress the strong spring 19, and consequently, the brake 14 remains inactive. . Should be the clutch between the two Wagon tear for some reason, .s-i The rope 8 loosens immediately, whereupon the brake 14 of the trailer is released by the spring 9 tightened and this is brought to a standstill. Of course, the same purpose can be achieved by using the buffer rod i <> and the spring 19, instead of on the trailer. ^r in analogous w ay affixing to the carriages. A plurality of cars can also be coupled one behind the other in the manner described, the foremost of which is an automobile, a locomotive or some other Kratt vehicle. Finally, one is neither bound to the illustrated cylindrical shape of the spring ig (instead of which correspondingly acting leaf springs can be arranged on the drawbar), nor to the type of brake shown in the drawing. Patenτ-A NSPRUch: Device for automatically applying the brake X05 for trailer vehicles, in which a movable rod is tied to the drawbar, to which a the brake lever acting tension member engages, characterized in that besides the displaceable rod on the drawbar and a buffer rod (16) a spring (19) is switched on between this and the drawbar. 1 sheet of drawings.