RU2671950C2 - Cable duct for rail vehicle - Google Patents

Abstract

FIELD: electricity.SUBSTANCE: cable duct (1) for a rail vehicle, comprising at least two rigid sections (2) and at least one flexible section (3) arranged between rigid sections (2), forming an articulated connection between rigid sections (2), wherein flexible section (3) allows rigid sections (2) to be pivoted by 180 ° degrees relative to one another, wherein the sections are made of a U-shaped metal profile. Locking device (4) is also provided for fixing the cable duct when pivoting.EFFECT: invention provides a cable duct for a rail vehicle that can be reduced in its length for transport and only brought to the required specific length just before being installed in the rail vehicle.8 cl, 17 dwg

Description

FIELD OF THE INVENTION

The invention relates to a cable duct for a rail vehicle.

State of the art

Cable ducts are used for laying flexible wires such as electrical or optical cables. In this case, in most cases, a cable bundle is made and inserted into the cable channel, and the cables are fixed at suitable mounting points in the cable channel. This is usually done using cable ties made of plastic or using special cable clamps. Cables laid in rail vehicles must be fastened only with certain maximum distances from each other; exceeding these distances between the attachment points (cable ties) is not permissible, since otherwise continuous vibrations during movement can lead to malfunctions after prolonged operation. Modern manufacturing processes lead to a large degree of pre-fabrication of components, so that in most cases full cable bundles are manufactured in specialized enterprises. Then they are installed in a cable channel and connected with it before installation in a rail vehicle. The cable channel itself contains many separate segments and is composed into a common cable channel of the required length. The cable duct / cable bundle unit has a considerable length, usually more than 20 m, and can only be inserted through the end side of the car body into a rail vehicle. It is preferable to manufacture a cable channel with a cable bundle in the form of a cable channel / cable bundle block in a specialized enterprise, however, it is economically impossible to transport a cable channel / cable bundle block with typical lengths for it. In particular, transportation by truck is no longer necessary since the transportation of products of this length is possible only with the help of very expensive special transportation means. According to the prior art, transportation of a prefabricated cable duct / cable bundle unit for a rail vehicle is not economically feasible.

SUMMARY OF THE INVENTION

Therefore, the basis of the invention is the creation of a cable channel for a rail vehicle, which can be reduced in its length for transportation and only immediately before installation in a rail vehicle to bring to the desired specific length. In this case, in particular, the cable channel must be equipped with a cable harness.

The problem is solved using a cable channel for a rail vehicle with the characteristics of paragraph 1 of the claims. Preferred embodiments are the subject of the dependent claims.

In accordance with the main idea of the invention, there is provided a cable duct for a rail vehicle, which comprises at least two rigid sections and at least one flexible section located between the rigid sections, which forms an articulation between the rigid sections, while the flexible section allows turning rigid sections 180 ° relative to each other.

This provides the opportunity of transporting the cable channel in a rotated (folded together) position and thereby with a shorter length. In this case, in particular, it is preferable to provide the cable channel before transporting the cable bundle and then folding this entire cable channel using flexible sections. A 180 ° rotation provides cost-effective transportation, since rigid sections are laid parallel to each other during transportation, and this minimizes the need for structural space. A rotation of less than 180 ° leads to the fact that the hard sections lie V-shaped, which is a disadvantage in transportation. The number of flexible sections is determined by the total length of the cable channel and the desired transportation length (length when turning all flexible sections). A transport length of less than 10 m is usually desired, as this length allows transport by conventional means of transport.

According to the invention, the cable channel can be equipped with a locking device that fixes the cable channel when turning 0 ° (straightened position) of the hard sections relative to each other. Due to this, the advantage is achieved of the possibility of preventing the mobility of the cable channel in the area of flexible sections, so that when the cable channel vibrates in these places there is no deflection. Another advantage of a cable duct with a locking device is that it is easier to handle the rigid cable duct during installation in a rail vehicle.

The execution of the cable channel is preferably carried out essentially from a U-shaped metal profile, for example, steel or light metal (aluminum). It is preferable to make flexible sections of the cable channel from several U-shaped segments that are connected to each other in the form of a chain. This connection is carried out expediently with the help of fingers that enter the holes of the segments and are protected from falling out. In the same way, the flexible portion is connected to an adjacent rigid portion. The length of the flexible portion determines the bend radius of the flexible portion and thereby the bend radius of the wires located in the cable channel that are subjected to this bending load. The minimum bending radii specific to the respective wires must not be reduced, due to which the required length of flexible sections is specified.

The locking device can be implemented in various ways, while on the basis of the scope of the cable channel, according to the invention, it can be assumed that the cable channel must be brought into a rigid state only once during its service life, since the already installed cable channels are disassembled only rarely.

The locking devices listed below are particularly preferred since they are very simple and economical to manufacture and provide a very simple and quick execution of the locking process.

Finger Lock

According to this embodiment, the adjacent segments of the flexible section are provided with holes that are aligned in a straightened position (0 ° rotation), after which a locking pin can be inserted into these holes. This locking finger is provided for quick installation with a preferably made elastic protrusion, which forms a geometrical connection with the holes and prevents loss after installation. The finger can be particularly preferably made of plastic.

Stiffener blocking

According to this embodiment, a stiffening bar is provided, which in the straightened position of the cable duct is to be mounted on the cable duct. At the same time, the fastening of the stiffener can be carried out, for example, using a screw connection, while the corresponding holes on the segments of the cable channel in the straightened position are aligned with the corresponding holes of the stiffener, and through these holes you can make a screw connection.

In another modification of the invention, it is advisable to replace the screw connection with a connection without connecting means, since such connections usually provide the possibility of faster use. For this, it can be provided, for example, on the segments of the flexible section or on the hard sections, respectively, in the stiffness bar, a protruding element, which in the straightened position of the cable bundle can be bent into the corresponding recesses, and thereby provide the possibility of connection with a geometric closure. It is particularly preferable to perform these recesses so that the folding process can be performed without force support, i.e. only with the help of hand power.

Brief Description of the Drawings

The drawings show as an example:

FIG. 1 - cable channel in a straightened position;

FIG. 2 - cable channel in the turned position;

FIG. 3 - cable channel in position with stiffening;

FIG. 4 - cable channel;

FIG. 5 - cable channel with locking fingers;

FIG. 6 - cable channel with locking fingers, bottom view;

FIG. 7 - locking finger;

FIG. 8 - type A segment;

FIG. 9 - type B segment;

FIG. 10 - cable channel with a stiffness bar;

FIG. 11 - part of the cable channel with a stiffness bar, on an enlarged scale;

FIG. 12 - stiffness bar;

FIG. 13 - cable channel with a stiffener bar connected by screws;

FIG. 14 - cable channel with a stiffening bar connected by a snap;

FIG. 15 - cable channel with a stiffening bar connected by snap-in, in bottom view;

FIG. 16 - cable channel with a stiffness bar with a plastically deformable protruding element;

FIG. 17 - cable channel with a stiffness bar with a plastically deformable protruding element on a hard section.

The implementation of the invention

In FIG. 1 shows, by way of example and schematically, a cable duct in a straightened position. The cable channel 1 is shown in a very abstract form, which contains two rigid sections 2 and one flexible section 3 located between the rigid sections 2. Shown in FIG. 1 position corresponds to the installation position of the cable channel 1.

In FIG. 2 shows, by way of example and schematically, a cable duct in a rotated position. The cable channel 1 of FIG. 1 in the rotated position, which corresponds to the transport position of the cable channel 1.

In FIG. 3 shows, by way of example and schematically, a cable duct in a straightened and stiffened position. The cable channel of FIG. 1, which has been stiffened by the locking device 4, so that bending along the flexible portion is not possible. The locking device 4 is schematically shown as a rigid bending rod, which connects the hard sections 2 and the flexible section 3 with a geometrical closure.

In FIG. 4 shows, by way of example, and schematically, cable duct 1 in a typical embodiment. The cable channel contains two rigid sections 2 and one flexible section 3 located between the two rigid sections 2. The flexible section 3 is made of different A-segments 5 and B-segments 6, which are arranged in a chain and connected by fingers 7 to an adjacent segment, respectively, with one of the hard sections 2. These fingers 7 provide the ability to rotate the hard sections 2 relative to each other by 180 °.

In FIG. 5 shows, by way of example and schematically, a cable duct with locking fingers as a locking device. Shown on an enlarged scale part of the cable channel 1 of FIG. 4 in an external view, while the locking fingers 8 are inserted into the holes 11. The holes 11 of the adjacent segments 5, 6 are aligned, when the angle of rotation of the segments 5, 6 relative to each other is 0 °.

In FIG. 6 shows, by way of example and schematically, a cable duct with locking fingers as an interlocking device from the inside (from the cable side). The cable channel of FIG. 5, while the locking fingers are inserted into the holes 11 and connect the segments 5, 6 to each other motionlessly to bend. Locking fingers 8 have a very flat head, in order to eliminate the risk of damage to the cable insulation on the cable side. At the junction of segment 8 to hard portion 2 in FIG. 6, the locking finger is not shown.

In FIG. 7 is shown as an example and schematically a locking finger. A locking finger 8 of a substantially mushroom shape is shown, which has a flat head and elastic projections 9 arranged in a circle. The elastic protrusions 9 are provided with hooks that prevent the locking finger 8 from falling out of the hole 11. The embodiment shown is particularly suitable for injection molding of plastic .

In FIG. 8 shows, by way of example and schematically, a type A segment. A type A segment is shown which is suitable for manufacturing as a stamped or bent part of a metal sheet. Segment 5 has a substantially U-shaped cross section and is provided with holes 10 for connecting with adjacent segments and with holes 11 for mounting the locking fingers 8.

In FIG. Figure 9 shows, by way of example and schematically, a Type B segment. A Type B segment 6 is shown which is designed for alternate mounting with Type B segments 5 and is also provided with holes 10 for connecting to adjacent segments and with holes 11 for mounting the locking fingers 8.

In FIG. 10 shows, by way of example and schematically, a cable duct with a stiffener as an interlock. A cable channel 1 is shown at the transition between the rigid portion 2 and the first segment 6 of the flexible portion, which is provided with a stiffener 12. Two stiffening plates 12 are arranged so that they extend over the entire length of the flexible section 2 and are connected to adjacent rigid sections 2 by means of a screw connection 14. In addition, the stiffening plates 12 are each geometrically connected to segments 5, 6, while in the segments 5, 6, recesses 13 are provided, which include hook-shaped protruding elements of the stiffening plates 12. This entry is possible only when the rotation of the hard sections 2 equal to 0 °, so that the stiffening can be carried out in this angular position.

In FIG. 11 shows, by way of example and schematically, a portion of a cable duct with a stiffener as an interlocking device on an enlarged scale. A recess 13 is shown in detail in segment 6.

In FIG. 12 is shown as an example and schematically a stiffener bar. Shows a section intended for the manufacture in the form of a stamped bent part from a metal sheet of the stiffness bar 12, which contains a hole for the screw connection 14 and a protruding element for entering the recess 13.

In FIG. 13 shows, by way of example and schematically, a cable duct with a screwed stiffener as an interlock. A cable channel 1 is shown, similar to that shown in FIG. 10 of the exemplary embodiment, an exclusively screwed stiffness bar 12 is provided. It is connected to the hard portion 2 and to the Type 6 segments 6 with a corresponding screw connection 14.

In FIG. 14 shows, by way of example and schematically, a cable duct with a screwed-in stiffener as a locking device that is mounted with a snap connection. A cable channel 1 is shown, similar to that shown in FIG. 10 of the exemplary embodiment, wherein a stiffening bar 12 is provided which is connected to the rigid portion 2 by means of a snap connection. To this end, the strip 12 is provided with protruding elements that are designed to snap into suitable recesses of the hard sections 12 due to the spring voltage and which in a latched position create a connection with a geometric closure. To increase the strength, the liquid strip 12 has other protruding elements that can fit into suitable recesses 13 of the segments 6. These other protruding elements are shown in FIG. fifteen.

In FIG. 15 shows, by way of example and schematically, a cable duct with a stiffening bar with a snap connection in a bottom view. The cable channel 1 of FIG. 14 in the bottom view. At the same time, protruding elements are shown that enter the recesses of 13 segments 6. This entry can only be carried out by turning 0 °.

In FIG. 16 is shown as an example and schematically a cable channel with a stiffening bar with a plastically deformable protruding element. A cable channel 1 is shown, similar to that shown in FIG. 10 of the exemplary embodiment, wherein instead of the snap connection 14, the stiffening plate 12 has a plastically deformable protruding element 15. This protruding element 15, after the hook-shaped protruding elements of the stiffening plate 12 are inserted into the recesses 13 of the segments 6, is deformed so that a connection with a geometric closure occurs.

In FIG. 17 shows, by way of example and schematically, a cable duct with a stiffening bar similar to that shown in FIG. 16 example execution. In contrast, a plastically deformable protruding element is located on the hard portion 2 and enters a corresponding recess in the stiffener 12.

List of items

1 cable channel

2 Hard section

3 Flexible section

4 Locking device

5 Segment A

6 Segment B

7 finger

8 Locking finger

9 Elastic overhang

10 finger hole

11 Hole for locking finger

12 Stiffness bar

13 notch

14 screw connection

15 Plastically deformable protruding element.

Claims (10)

1. A cable channel (1) for a rail vehicle that comprises at least two rigid sections (2) and at least one flexible section (3) respectively located between the rigid sections (2), which forms a hinge between the rigid sections (2), characterized in that the flexible section (3) allows the rotation of the hard sections (2) 180 ° relative to each other, moreover, a locking device (4) is provided, which fixes the cable channel (1) when the rigid sections (2) are rotated 0 ° relative to each other, and moreover, the hard sections (2) and flexible sections (3) of the cable channel (1) are made of a substantially U-shaped metal profile. 2. Cable channel (1) according to claim 1, characterized in that at least one flexible section (3) is made of several segments pivotally connected to each other (5, 6). 3. The cable channel (1) according to claim 2, characterized in that the swivel connection between adjacent segments (5, 6) is made using holes (10) in the segments (5, 6) and using a hole passing through this hole (10) finger (7), while the corresponding finger (7) passes through the corresponding hole (10) of adjacent segments (5, 6). 4. Cable channel (1) according to any one of claims 1 to 3, characterized in that the locking device (4) contains holes (11) in the segments (5, 6) of the flexible sections (3) and the corresponding hole in the hard sections (2 ), while turning 0 °, the holes (11) of adjacent segments (5, 6) are aligned, and with the introduction of a locking finger (8) into these holes (11), flexible sections (3) are stiffened. 5. The cable channel (1) according to claim 4, characterized in that the locking pin (8) is made of plastic and has an elastically made protrusion (9), which, after being inserted into the hole (11), prevents falling out. 6. Cable channel (1) according to any one of claims 1 to 5, characterized in that the locking device (4) contains a bar (12) of rigidity and recesses (13) in the segments (5, 6) of the flexible sections (3) and hard sections (2), while turning 0 °, it is possible to enter the stiffness bar (12) into the recesses (13) with meshing. 7. Cable channel (1) according to claim 6, characterized in that it is possible to connect the stiffening plate (12) in the engaged position by means of a screw connection (14) with segments (5, 6) of flexible sections (3) and with hard sections (2). 8. Cable channel (1) according to claim 7, characterized in that the stiffening plate (12) contains plastically deformable protruding elements (15), which, when turned by 0 °, can enter the corresponding recesses of the segments of flexible sections (3) and hard sections (2) with the possibility of subsequent plastic deformation to perform a connection with a geometric closure.

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