SU587029A1 - Mounting step for a passenger carriage - Google Patents

Description

one

The invention relates to railway transport, in particular to. entrance steps of passenger cars.

The entrance step of the passenger vestibule is known, comprising an apron of the vestibule fixed in the lateral ishtahs and a retractable step mounted below them on the rotary suspensions and connected with the drive for its movement 1.

But the known step is complex in design, has a large number of levers, and the presence of guide slots reduces the efficiency of the step, especially when icing.

In addition, the running board, beyond its size, will threaten the safety of train movements.

The purpose of the invention is to improve the convenience of boarding and disembarking passengers from low platforms.

To do this, the drive for moving the step contains a tr, attached to the apron by means of a bracket, with a free end pivotally connected by means of a lever to a horizontal shaft, placed in the end supports under the lower fixed step, on which the guide leash, pivotally connected to the retractable step, is mounted. hingedly connected to its pendants with side panels.

Figure 1 shows the described step, the front view of figure 2 j section aa of FIG. 1

The entrance footboard contains a duct 1 fixed under the car body, a turning apron 2 of the car’s vestibule and. Fixed steps 4.5 and 6 fixed in the side shields 3, retractable step Y hinged with their pendants b and 9 to the side shields 3 and connected by an actuator i displacements.

The drive contains tu 10, pivotally attached by means of a bracket 11 to a swivel; apron 2, the free horse of which is pivotally connected with a horizontal shaft 13 located in the end supports — under the lower fixed step by means of the tread 12. 6

A guide guide 14, hingedly connected to a sliding step 7, is seated on the shaft.

Claims (1)

An apron with bearings 15 attached to it, in which axle 16 is fixed, can be turned in sleeves 17. In the retracted position, the step with an additional step is located within the limits of the size of the rolling stock limited by line 18. When opening the rotary apron, 2 tons of 10 hems down down and the lever connected to it turns in a counterclockwise direction. Through a bracket 11, the leash moves the step 7. The extended position of the stump is shown in Fig. 2 by dotted lines. When the apron 2 is closed by means of a lever drive, the step 7 in the horizontal position moves back and up under the car until it stops in the side boards of the footboard or in the rubber gaskets that can be installed on the side panels. The lever is rotated at an angle ei. -90, thanks to which, in the removed position, the additional step k takes up little space. The step is moved to predetermined positions by a lever drive that blocks the step movement with the movements of the vestibule protective apron. Claims of the invention Entrance step of a passenger car containing a rotary apron of a vestibule, stationary steps placed in the side panels and a retractable step installed below them on the rotary suspensions and connected with: driving its movement, so that in order to increase the convenience of boarding and disembarking passengers from low platforms, the drive for moving a stair contains a tractor attached to an apron with a bracket, with a free end pivotally connected by means of a lever with a horizontal shaft, displacements in the terminal supports fixed beneath the lower rung on which is seated the lead guide pivotally coupled to the sliding step, the same is pivotally connected with its suspension side shields. Sources of information taken into account in the examination: 1.Patent of Switzerland 547195, class B 61-D 23/02. Cl 2 / " FIG. 2