DE677280C - Brake arrangement for rail vehicles - Google Patents

Description

155255

The subject of patent 605 569 is one which is intended in particular for rail vehicles Brake arrangement in which the center distance between two adjacent wheels to be braked is small; the main characteristic of the innovation consists in the fact that two double-armed levers each with corresponding Arm lengths are provided which, rotatable independently of one another, are mounted on a common shaft, the shorter arms of each lever carry the brake pads for the two adjacent wheels, while one of the longer lever arms is at a suitable fixed point on the vehicle frame, the other is hinged to the brake actuation linkage.

The present proposal simulates a further development of such a design the direction that one of the two

ao double-armed lever on the common rotating shaft with the interposition of a eccentric sleeve is mounted, by rotating it is possible to apply the brake Easy to adjust for wear and tear; only the most necessary individual parts are required here the entire assembly to be released and removed, while the main parts can remain on the vehicle. For execution this proposal becomes a Baiiform, in which the one double-armed lever is formed from two halves encompassing the other double-armed but one-piece lever is used, with the one-piece, centrally located lever under mediation the eccentric sleeve is mounted on the common rotating shaft. The sleeve can be fastened by fastening means, such as "B. Screws or the like, are held in their position opposite the central one-piece lever, accessible after pulling off the outer half of the other double-armed lever will.

To illustrate the idea of the invention is shown in the drawing

Fig. Ι in a diagrammatic side view, the brake arrangement for several

Claims (2)

successive wheels, the intermediate pieces Ιζ being shown inserted in different positions with respect to the levers. Fig. 2 shows a vertical section through the arrangement according to line I-1 of Fig. I. In accordance with the designation in patent 605 569, the same reference numerals are used for parts of the same type. The brake arrangement belonging to the subject matter of the invention is accommodated between the closely spaced wheels A, B and / with the relatively small center distance x, to which the small distance y between the tires of two adjacent wheels in the direction of the wheel axle centers corresponds. Each braking device consists essentially of the two double-armed levers with the arms C1, C2 or D1, D2 and the bearing shaft E, on which the levers can be pivoted independently of one another. The size ratios of the lever arms are chosen so that C1 = D1 and C2 = D2. Furthermore, the brake pads F are articulated to the free ends of the lever arms C2 and D3 in a known manner, while the free ends of the lever arms C1 are connected to a brake actuation linkage, rod G, the free ends of the lever arms D1, however, to an example on (not shown) ) The fixed point on the vehicle frame // are rotatably attached (see Fig. 2). This arrangement operates in the same manner as described in the '605,569 patent. In order to achieve easy adjustment for the braking devices, according to the invention, the levers C1, C2 are not directly supported on the shaft E, but with an interposed eccentric bushing Ιζ, which can be repositioned in such a way that they are two against each other by i8p ° can occupy staggered positions. In Fig. 1, one position is assumed for the braking device shown on the left in the illustration and the other position for the braking arrangement shown on the right. In order to facilitate the adjustment of the brakes during operation, one lever D1, D2 is designed in two parts such that the two similar lever halves D1 ', D1 "and D2', D2" encompass the other lever C1, C2 sitting in between on both sides (see Fig. Fig. 2). During the adjustment, only the outwardly seated half D1 ", D2" of the subdivided lever D1, D2 at the articulation points of the brake pad F at L and on the shaft E at M needs to be pulled off, while the articulation of this lever part D1 ", D2 "at the fixed point //" only needs to be loosened accordingly, in order to then expose the front of the bushing Ιζ after swiveling this part aside. .. The bushing Ιζ can be easily removed by means of a tool designed in the manner of a push-off tool and with the help of the push-off thread N. Pull out the lever C1, C2, whereby this lever is supported by the rest of the brake pad F on the wheel and by the permanent connection with the operating linkage G, which facilitates the adjustment process. After turning the bush Ιζ by 180 ° and reinserting it in the lever C1, C2, the lever part D1 ", D2" is brought into its original position. A special securing of the bush K 7 ^ in its position j M levers C1-, C2 are not necessary, as they are held by the one in front of the lever half D1 ", D2". As a modification of the basic idea of the invention, it is also conceivable to design the bushing / C on the outside not square, but round, which would result in a finer Nachstelhnöglichkeit; However, it would then require special fastening means in order to remain in any position. Furthermore, nothing stands in the way of mounting the other lever D1, D2 on the shaft E by means of an eccentric bushing instead of the lever C1, C2. The adjustment with the help of the bushing / C can, however, be relatively coarse, since the adjustment elements in the actuating linkage G provide a finer adjustment option. Ρλ τ κνtans ρ back: 1. Brake arrangement for rail vehicles according to patent 605 569, characterized in that one (C ₁ , C ₂ ) of the two double-armed levers (C ₁ , C ₂ and D ₁ , D ₂ ) on the common rotary shaft (E) with activation an eccentric sleeve (K) is mounted, which can be rotated for the purpose of brake adjustment. 2. Apparatus according to claim 1, in which one double-armed lever is formed from two halves encompassing the other double-armed lever on both sides, characterized in that the bushing (K) is in its position opposite the one-piece central one by means of fastening means arranged on its outwardly facing side Lever (C ₁ , C ₂ ) is secured, these fastenings being accessible after removing the outwardly located half (D ₁ ", D ₂ ") of the other double-armed lever (D ₁ , D ₂ ). 1 sheet of drawings