RU2270116C2 - Car ceiling - Google Patents

Abstract

FIELD: railway transport: car building.

SUBSTANCE: proposed ceiling of car contains skeleton connected with body and including pressure battens, pair of shaped beams 1, 2 rigidly connected by ends of shaped bows 3 with intake slots to form row of frames, each carrying ceiling panel 12 secured over contour by means of intake slots, pressure battens and threaded members. Support slot made in lower beam communicates with small and large intake slots made in bows 3 of frame. Ceiling panel is installed in large intake slot of frame with clearance equal at least to depth of smaller intake slot. Ceiling panel is installed by upper part for movement between flange of upper beam and lower flanges of bows and is secured by pressure batten of upper beam of its lower surface with cross clearances, one of which is limited by upper edge of panel and threaded member and other one, by edge of insulation and edge of flange of upper beam, each at least equal to depth of support slot.

EFFECT: reduced labor input, facilitated conditions of mounting, improved external appearance, provision of possibility of demounting of any panel.

5 dwg

Description

The invention relates primarily to car building, to the construction of ceilings, walls or floors of cars, and can also be used in structures for other purposes.

The well-known "Interior lining of the ceiling for the car" (application Germany No. 2927640, IPC B 61 D 17/18, publ. 01/22/1981), containing the lower and upper runs. The lower runs are installed in the upper part of the side walls, and the upper ones - by aligning the consoles in the middle of the roof. The ceiling panels on the girders are removably fixed in two longitudinal rows. The transverse edges of the panels are connected by a flexible strip, which is pushed from top to bottom in a rectangular groove formed by the transverse edges of adjacent panels. One of the longitudinal edges of the panels is clamped in the receiving slot of the upper run, and the other is inserted into the receiving groove of the lower run.

The well-known ceiling design is self-supporting: girders are closed into the frame by profile arches only along the end walls of the car. Its main disadvantage: there are no elements of lateral stiffness connecting the runs in separate frames, which would make it easier and faster to assemble and disassemble any individual ceiling panel.

For the prototype adopted "Self-supporting ceiling lining for rail rolling stock" (GDR patent No. 38802, B 61 D 17/18, publ. 08.25.1965, Fig.6), containing girders 3 connected to the car body, fasteners, including clamp and screw fastening, profile arcs 1 with retaining grooves 5, rigidly connected by ends with girders 3 with the formation of a longitudinal row of arc frames, each bearing a ceiling panel 4 fastened in it along the contour by means of retaining grooves 5 and fasteners.

The main disadvantage of the prototype: attaching the lower edges of the ceiling panels to the lower runs requires the use of additional fasteners, the cost of working time to install them and the inability to dismantle any of the panels without affecting the connection.

The objective of the proposal is to reduce the complexity, improve the installation conditions, improve the appearance and create the possibility of dismantling any of the panels.

To this end, the inventive car ceiling comprises a frame connected to the body, including a pair of profile runs, clamp rails mounted on threaded run elements, profile arcs with receiving grooves formed by the lower and upper shelves, rigidly connected by ends to the runs with the formation of a series of frames bearing each fixed in it along the contour through the receiving grooves, clamping rails and threaded elements of the ceiling panel. What is new is that in the lower run there is a support groove communicated with small and large receiving grooves made in the arcs of the frame, the ceiling panel is installed in the large receiving groove of the frame with a longitudinal clearance of at least equal to the depth of the small receiving groove, with its upper part placed movably between the shelf of the upper run and the lower shelves of the arcs, and is fixed by a clamping rail of the upper run on its lower surface with transverse gaps, one of which is limited by the upper edge of the panel and threaded elements, and d ugoy - edge exclusion and the upper edge of the shelf runs, at least equal to the depth of each groove of the support.

The technical result was expressed in the following.

The use of this design of girders and profile arches will allow the ceiling panel to be conveniently connected without fasteners by means of receiving and supporting grooves with profile arches and the lower run, thereby simplifying the assembly of the ceiling. The accompanying drawings depict:

figure 1 is a transverse view of the roof of the car;

figure 2 - mounting profile arc with a lower run;

figure 3 - fastening of the profile arc with the upper run;

figure 4 is a cross section of profile arches of the frame before assembly with a ceiling panel;

figure 5 is a cross section of the profile arches of the frame after assembly with a ceiling panel.

The carriage ceiling contains a carcass connected to the body, including profile upper 1 and lower 2 runs, profile arcs 3 with a small 4 and a large 5 receiving grooves, rigidly connected by ends with girders 1, 2 with screw fastenings 7, 6 (bolt, elastic washer, nut) with the formation of a longitudinal row of frames. The arcs in the frame have lower 8, 9 and upper 10, 11 counter-directed shelves. In each frame, a groove is created on three sides of the opening, which allows the ceiling panel 12 to be shifted both in the longitudinal and transverse directions during installation or dismantling.

To do this, in the lower run made reference groove 13, communicated with a small 4 and a large 5 receiving grooves made in arcs 3 of the frame.

The ceiling panel 12 is installed in a large receiving groove 5 of the frame with a longitudinal gap 14 and is a metal sheet 24 with a layer 25 of heat and sound insulating material molded to its upper side.

The longitudinal gap 14 is at least equal to the depth of the small receiving groove 4. The sum of the depth of the large receiving groove 5 and the interval between the lower opposing shelves 8, 9 of the arcs in the frame is slightly larger than the length of the ceiling panel 12 (viewed along the axis of the car).

Between the shelf 16 of the upper run and the shelves 8, 9 (Figs. 3, 4), the necessary clearance is provided for free movement during installation and dismantling of the ceiling panel 12 in the transverse and longitudinal directions.

The panel 12 is installed relative to the elements of the upper run with the same transverse gaps 19, 20.

The gap 19 is limited by the edge of the upper part 17 of the panel 12 and the bolt 21 of the upper run. The gap 20 is limited by the edge 22 of the insulation 25 of the panel 12 and the edge of the flange 16 of the upper run. Each of the gaps 19, 20, at least equal to the depth of the reference groove 13 (figure 2).

The transverse clamps are each made in the form of a clamping rail 18 fixed by nuts 23 and bolts 21, which compresses the upper part 17 of the panel 12 elastically against the shelf 16.

The ceiling panel is installed as follows.

Initially, the panel is inserted between the bolt 21 and the edge 26 of the lower run 2 (Fig. 2) with the clamping rail 18 displaced downward. Then, the panel moves along the roof (Fig. 4) with its transverse edge into the large receiving groove 5 until the panel will lie on the inner surface of the shelf 11, after which the panel is longitudinally shifted back to its final position — into the small receiving groove 4. As a result, a longitudinal gap 14 is formed in the large receiving groove 5 (Fig. 5).

The transverse movement of the panel is placed in the second final position - in the reference groove 13 (figure 2) of the lower run. As a result, two transverse gaps 19, 20 are formed at the top of the panel edges. The position of the panel with the gaps 14, 19, 20 in the grooves is fixed from displacement by clamping the upper part of the panel 12 between the shelf 16 and the pressure rail 18 using bolts 21 and nuts 23.

In the case of using the claimed invention for fixing wall and floor cladding, for example, in trade pavilions, the frame is made planar and is assembled from linear profile elements.

As threaded elements 21 can also be used threaded rods, screws or screws.

Claims (1)

A wagon ceiling comprising a carcass connected to the body, including a pair of profile runs, clamping rails mounted on threaded runner elements, profile arcs with receiving grooves formed by lower and upper shelves, rigidly connected by ends with girders with the formation of a series of frames carrying each installed in it the grooves and the ceiling panel fixed by the pressure rail and threaded elements, characterized in that in the lower run there is a support groove communicated with small and large receiving grooves made in the frame, the ceiling panel is installed in a large receiving groove of the frame with a gap of at least equal to the depth of the small receiving groove, its upper part is movably mounted between the upper run shelf and lower arches flanges and secured by the upper run hold-down rail on its lower surface with transverse gaps one of which is bounded by the top edge of the panel and threaded elements, and the other by the edge of insulation located on the upper side of the sheet of the ceiling panel, and the edge of the shelf of the upper run is at least equal bubbled each reference depth of the groove.

Images