Grind contact holder, grind contact, current collector and grinding lead system

Description

[0001] The invention relates to a sliding contact holder according to the preamble of claim 1, a current collector according to the preamble of claim 12 and a conductor rail system according to the preamble of claim 13.

[0002] Current collectors with sliding contact holders are known from the prior art. These usually contain sliding contacts firmly integrated into the sliding contact holders. This allows a good electrical connection to be established between a sliding contact terminal of the current collector and the sliding contact, which engages a busbar of the conductor rail system. However, a disadvantage is that when the sliding contacts become worn, the sliding contact holder always has to be replaced together with the sliding contact. The sliding contact holder is usually firmly attached, for example, by screwing, to a corresponding holding mechanism of the current collector.

[0003] EP 0 002 627 A1 discloses a brush for the collector of a carriage running on an electrified monorail used in transshipment facilities. This brush comprises a base made of insulating material equipped with snap-on fasteners rigidly connected to electrically conductive elements connected to the collector and into which a projecting part of a sliding contact made of conductive material engages, with knife-shaped contact fingers holding the sliding contact.

[0004] EP 3 333 007 B1 discloses a contact strip for a current collector of a rail vehicle, comprising a first and second strip made of carbon, which extend parallel to a longitudinal direction and on both sides of a longitudinal extension plane which includes the longitudinal direction, further comprising a metal insert which extends along the longitudinal direction in the longitudinal extension plane and is provided between the first and second carbon strips, and a current collector carrier to which the first and second carbon strips and the metal insert are mounted.

[0005] The object of the invention is therefore to provide a sliding contact holder, a current collector and a conductor rail system which overcome the above-mentioned disadvantages and provide a current collector design which is as compact and vibration-insensitive as possible.

[0006] The invention solves this problem by a sliding contact holder having the features of claim 1, a current collector according to the preamble of claim 12 and a conductor rail system according to the preamble of claim 13. Advantageous further developments and embodiments of the invention are specified in the subclaims.

[0007] A sliding contact holder mentioned at the outset is characterized according to the invention in that free ends of the holding lamellas project obliquely into the interior space surrounded by the sliding contact receptacle, wherein adjacent holding lamellas run parallel to one another.

[0008] Preferably, the free ends of the holding lamellas can protrude obliquely into the interior space surrounded by the sliding contact receptacle, counter to a direction of insertion of the sliding contact into the sliding contact receptacle.

[0009] To ensure a better fit of the sliding contact in the sliding contact holder, the free ends of the retaining lamellas can be sharp-edged so that they can dig slightly into the sliding contact.

[0010] Preferably, the retaining lamellas can extend into the interior in a herringbone pattern, in particular arranged one above the other in a vertical direction of the sliding contact receptacle or next to one another in the feed direction or insertion direction of the sliding contact or the vertical direction of the sliding contact receptacle, so that, due to the large number of retaining lamellas arranged one above the other or next to one another, a secure fit is ensured, and that even with a small number of damaged retaining lamellas, the fit in the sliding contact receptacle is still ensured. Free ends of the retaining lamellas can preferably be designed to engage the sliding contact.

[0011] Furthermore, the retaining lamellas can advantageously be arranged on at least one side wall of the interior of the sliding contact receptacle, which is advantageous from a manufacturing perspective. If necessary, additional retaining lamellas can be arranged on a side wall of the interior of the sliding contact receptacle opposite the at least one side wall, extending into the interior, thereby improving the fit.

[0012] Preferably, the retaining lamellas can extend in a direction parallel to the longitudinal direction of the sliding contact contacting the conductor line, so that the retaining lamellas are pressed to the side when the sliding contact is inserted into the sliding contact receptacle and are thereby tensioned in order to act on the walls of the sliding contact against the insertion direction when the sliding contact is pulled out.

[0013] Furthermore, the retaining lamellas can run parallel to the insertion direction of the sliding contact into the sliding contact receptacle. In this case, too, the retaining lamellas are pushed sideways when the sliding contact is inserted, thereby pressing against the walls of the sliding contact to resist the sliding contact's removal.

[0014] Furthermore, when the sliding contact is not plugged in, the distance between holding slats arranged on opposite sides of the interior or between one side of the interior and holding slats arranged on the opposite side of the interior can preferably be smaller than the width of the plug-in area transversely to and / or in the longitudinal direction.

[0015] Preferably, the sliding contact holder and / or the holding lamellas can be made of an electrically conductive material in order to provide the simplest and best possible electrical connection between the sliding contact and the sliding contact holder.

[0016] To ensure a better fit of the sliding contact in the sliding contact holder, the retaining lamellas are elastic or have elastic properties to ensure a secure fit and a perfect and permanent contact with the sliding contact. Preferably, the retaining lamellas can also be made of a material that is harder than the material of the sliding contact, allowing the retaining lamellas to dig into the sliding contact even better and ensure a secure hold.

[0017] In an advantageous further development, the sliding contact holder and the holding lamellas can be formed in one piece, thus enabling good electrical conduction without contact resistance and simple manufacturing. Furthermore, there is then no risk of the holding lamellas becoming detached from the sliding contact holder and the sliding contact no longer being securely held in the sliding contact holder. Preferably, the sliding contact holder can be made of an electrically conductive material. Alternatively, the sliding contact holder can be made of an electrically insulating material, in particular plastic, in which case the holding lamellas are preferably made of an electrically conductive material and are preferably electrically connected to the sliding contact connection.This allows the sliding contact holder to electrically insulate the sliding contact from the outside, while the retaining lamellas can preferably be cast into the sliding contact holder, which simplifies the manufacture of the sliding contact holder.

[0018] A current collector as mentioned above is characterized according to the invention in that the sliding contact holder is / are designed as described above and below. The use of such a current collector enables short setup and maintenance times for the use of new sliding contacts, particularly when replacing worn sliding contacts.

[0019] A conductor rail system as mentioned above is characterized according to the invention in that the current collector is designed as described above and below. Such a conductor rail system allows for the quick and easy replacement of worn and / or defective sliding contacts.

[0020] Preferably, the longitudinal direction of the conductor rail can correspond to the longitudinal extension of the sliding contact inserted into the sliding contact receptacle. Furthermore, the insertion direction of the sliding contact into the sliding contact receptacle can advantageously be perpendicular to the longitudinal direction and / or perpendicular to the transverse extension of the sliding contact, or perpendicular to a transverse direction that runs perpendicular to the longitudinal direction and to a feed direction of the sliding contact to the conductor rail.

[0021] Essentially parallel, here and in the following, does not mean mathematically exact parallelism, but also minor deviations from parallelism by a few degrees, which can arise, for example, due to wear and tear, weather influences, temperature influences, production-related inaccuracies and tolerances, conductor lines that are not exactly straight or installed, or for other reasons.

[0022] The invention is described below using detailed embodiments with reference to the accompanying drawings. These show: Fig. 1 a partially broken three-dimensional oblique view of a conductor rail system according to the invention; Fig. 2 a front view of a pantograph according to the invention Fig. 1 ; Fig. 3 a sectional view through the pantograph Fig. 2 along the line AA; Fig. 4 a sectional view of a sliding contact holder of the current collector Fig. 3 along the line BB without a sliding contact inserted therein; Fig. 5 a front view of an alternative pantograph according to the invention; Fig. 6 a sectional view through the pantograph Fig. 5 along the line CC; Fig. 7 a sectional view of a sliding contact holder of the current collector Fig. 6 along the line DD without a sliding contact inserted therein; Fig. 8an enlarged sectional view of detail E from Fig. 6 .

[0023] Fig. 1 shows a partially broken-away three-dimensional oblique view of a conductor rail system 1 according to the invention with a conductor rail 2, which is known per se and runs in a longitudinal direction L. Depending on the application, several such conductor rails 2 can be arranged next to one another; however, for reasons of clarity, the invention is described here only with reference to one conductor rail 2.

[0024] The conductor rail 2 has a conductor profile 3 with a trough-shaped contact section 4 made of an electrically conductive material. Depending on the application and in particular the level of the electrical current to be transmitted, the entire conductor profile 3 can also be made of an electrically conductive material or a combination of different electrically conductive materials. The conductor rail 4 is surrounded by an insulating profile 5 made of an electrically insulating material and serves, among other things, as contact protection for operating personnel and to prevent earth faults and, in the case of several conductor rails 2 arranged next to one another, conductor short circuits between the conductor rails of the conductor rails 2 arranged next to one another. Fig. 1On the downward-facing side, the conductor rail 2, and in particular also the insulating profile 5 and the conductor profile 3, has a longitudinal slot 6 running in the longitudinal direction L. The above configuration is generally known to the person skilled in the art and does not require any detailed explanation.

[0025] In order to supply an electrical load movable at least in the longitudinal direction L along the conductor rail 2 with power from the conductor profile 3, a current collector 7 is provided, only partially shown in the drawings. Other parts of the current collector 7 not shown, such as a feed device for moving and permanently holding it against the conductor rail 2 or means for fastening it to the electrical load, are omitted for reasons of clarity and are otherwise known to those skilled in the art.

[0026] The current collector 7 has a sliding contact 8 with a sliding area 8a, which can be moved in a feed direction Z through the longitudinal slot 6 toward the sliding section 4 by means of a feed device (not shown) for electrical contact with the trough-shaped sliding section 4 of the conductor profile 3 and can be continuously pressed against it. In the sliding area 8a, the sliding contact 8 is brought into contact with the conductor profile 4 through the longitudinal slot 6 of the insulating profile 3 for electrical contact with the trough-shaped sliding section 15.

[0027] Furthermore, the sliding contact 8 has an insertion area 8b, with which the sliding contact 8 can be inserted in the feed direction Z from the top of the drawings into an interior space 9a of a correspondingly designed sliding contact receptacle 9 of the current collector 7. The insertion area 8b is preferably narrower than the sliding area 8a in a transverse direction Q running transversely to the longitudinal direction L and the feed direction Z. However, the two areas 8a, 8b can also have the same width or different width ratios.

[0028] The sliding contact holder 9 has side walls 10, 10' running in the longitudinal direction L and spaced apart from one another in the transverse direction Q, as well as front walls 11, 11' which laterally surround the interior space 9a.

[0029] On their inner sides facing each other, i.e. the sides facing the interior 9a of the sliding contact receptacle 9, the side walls 10, 10' have, particularly in Fig. 3 and 4clearly visible retaining slats 12, 12' running in the longitudinal direction L. As is particularly evident in Fig. 3 As can be clearly seen, the holding lamellas 12, 12' run obliquely towards the interior space 9a from top to bottom in the direction of a base 13 of the interior space 9a of the sliding contact receptacle 9, i.e. in the feed direction Z away from the sliding area 8a and, during operation, thus also away from the conductor line 2. The holding lamellas 12, 12' are therefore also additionally inclined downwards away from the locking projections 17, 17'. The arrangement of the holding lamellas 12, 12' one above the other in the height direction Z can also be described as herringbone-like, in particular with regard to the cross-section transverse to the longitudinal direction L and the height direction Z.

[0030] In order to ensure that the sliding contact 8 is securely seated in the sliding contact receptacle 9, the width W of the insertion area 8b of the sliding contact 8 in the transverse direction Q is slightly wider than the distance between the front edges of opposing, relaxed holding lamellas 12, 12' in the transverse direction Q. In addition, the holding lamellas 12, 12' are somewhat elastic or yielding and can therefore be pushed slightly to the side by the insertion area 8b when the sliding contact 8 is inserted into the sliding contact receptacle 9. Due to this elasticity, the front edges of the holding lamellas 12, 12' are then pressed against the long sides of the sliding contact 8 in the insertion area 8b and dig in slightly. This prevents the sliding contact 8 from falling out of the sliding contact receptacle 9 during normal operation.For this purpose, the holding lamellas 12, 12' preferably have sharp front edges to facilitate digging into the sliding contact 8 and to ensure the electrical connection between the two parts.

[0031] For this purpose, it is advantageous if the retaining lamellas 12, 12' are made of a material that is somewhat harder than the material of the sliding contact 8 or the insertion area 8b. Preferably, the sliding contact 8 can be made of a material with good electrical conductivity, for example, aluminum, copper, or graphite, or corresponding mixtures, so that the retaining lamellas 12, 12' are preferably made of a material that is harder than the material.

[0032] In order to establish an electrical contact with the electrical consumer, the sliding contact receptacle 9 and thus also the holding lamellas 12, 12' are made of an electrically conductive material, which, due to the firm contact and the partial digging of the holding lamellas 12, 12' into the insertion area 8b of the sliding contact 8, establishes a good electrically conductive connection to the latter.

[0033] The sliding contact receptacle 9 is itself accommodated in a sliding contact holder 14, which is made of an electrically insulating material. The sliding contact holder 14 has a box-shaped design with two side walls 15, 15' running essentially parallel to each other in the longitudinal direction L, which, together with end walls 16, 16', enclose an interior space for accommodating the sliding contact receptacle 9. Fig. 1 to 4At the upper end of the side walls 15, 15' as well as the end walls 16, 16', inwardly projecting longitudinal locking projections 17, 17' and end locking projections 18, 18' are provided, which completely encompass the sliding contact receptacle 9 at the top. If necessary, the longitudinal locking projections 17, 17' or end locking projections 18, 18' can also be omitted. The side walls 15, 15' and the locking projections 17, 17', together with the corresponding end side walls 16, 16' and locking projections 18, 18', surround the sliding contact receptacle 9.

[0034] In the present embodiment, the sliding contact receptacle 9 is firmly cast into the sliding contact holder 14, thus being additionally held on all four sides at the upper end by the locking projections 17, 17', 18, 18'. The sliding contact holder 14 also serves as a contact guard.

[0035] To electrically connect an electrical connection cable of the electrical load to the sliding contact 8, the sliding contact receptacle 9 has a sliding contact connection 19 on the side facing away from the conductor rail 2. The sliding contact connection 19 is firmly and electrically conductively connected to the base of the sliding contact receptacle 9, and both parts are preferably made of the same material, particularly preferably in one piece. However, different parts and electrically conductive materials can also be used.

[0036] Furthermore, the sliding contact connection 19 is surrounded by a connection element 20 of the sliding contact holder 14, wherein the connection element 20 serves as additional insulation and has plug connection connections and / or elements which are provided for corresponding plug elements of a connection connection to the electrical consumer.

[0037] In order to be able to pull the sliding contact 8 out of the sliding contact holder 9 more easily against the holding force of the holding lamellas 12, 12', two circular recesses 21, 21' in this case extending through the sliding contact 8 are provided for a extraction tool with two corresponding engagement pins, which can preferably be arranged on a common handle. These are then inserted into the recesses 21, 21' and the sliding contact 8 is then pulled out of the sliding contact holder 9 using gentle force. Instead of two recesses, however, just one or more recesses or, for example, rear grips or undercuts can be provided. The recesses can also have a different cross-section, for example triangular, square, pentagonal, hexagonal or polygonal. If necessary.the recesses may also not pass completely through the sliding contact 8, but may merely be depressions provided on one and / or both long sides of the sliding contact 8, into which a gripping tool engaging in one and / or more depressions on both long sides can engage.

[0038] In Fig. 5 to 8 The current collector 7 is shown again, but with an alternative sliding contact holder 22, which is particularly suitable in Figs. 7 and 8 The differences will be discussed below, while corresponding parts will be given the same designations and reference symbols as in the embodiment according to Fig. 1 to 4 For the same parts, the above statements apply to Fig. 1 to 4 Conversely, statements on the same parts of Fig. 5 to 8 for the Fig. 1 to 4 parts shown and described above.

[0039] The Fig. 5 to 8 The embodiment shown differs essentially in the design of the alternative sliding contact holder 22. How well in Fig. 8 As can be seen, an interior space 22a of the sliding contact receptacle 22 has retaining lamellae 24, 24' extending in the longitudinal direction L on side walls 23, 23' in the feed direction Z, i.e. the vertical direction of the sliding contact receptacle 22, in contrast to the retaining lamellae 12, 12' extending in the longitudinal direction L of the Fig. 1 to 4 shown and described above. The retaining slats 24, 24' are manufactured in a similar manner to the retaining slats 12, 12' described above, i.e., they are formed from the material of the side walls 23, 23'. However, they can also be attached to the side walls 23, 23' and / or possibly be made of a different material.

[0040] The distance between opposite, relaxed holding lamellae 24, 24' is again somewhat smaller than the width W of the insertion area 8b of the sliding contact 8, so that the elastic holding lamellae 24, 24' give way again slightly when the sliding contact 8 is inserted and are thereby tensioned and then slightly dig or claw into the insertion area 8.

[0041] In the feed direction Z, the retaining lamellas 24, 24' run parallel to each other. The free front ends of the retaining lamellas 24, 24' are preferably provided with a sharp edge to better dig into the insertion area 8b of the sliding contact 8.

[0042] Furthermore, the retaining lamellae 24, 24' project diagonally from the respective side walls 23, 23' into the interior 22a of the sliding contact receptacle 22. The free front ends of the retaining lamellae 24, 24' point in the same direction on both side walls 23, 23', i.e. from a Fig. 6 to 7left front side wall 25' to the right front side wall 25.

[0043] The advantage of the alternative sliding contact receptacle 22 compared to the sliding contact receptacle 9 described above is that when the sliding contact 8 is pulled out, the retaining lamellas 24, 24' running in the feed direction Z are not bent upwards against their inclined position, thus avoiding the risk of damage to or tearing off one of the retaining lamellas 12, 12' or even part or all of the insertion area 8b of the sliding contact 8. Nevertheless, the sliding contact 8 is held securely in the sliding contact receptacle 22 by the retaining lamellas 24, 24', since the retaining lamellas 24, 24' also rest resiliently against the sliding contact 8 and, due to the main direction of movement of the current collector 7 in the longitudinal direction L, preferably brace themselves against the direction of movement when the sliding contact 8 is in Fig. 5 to 8 moves to the left.

[0044] Depending on the application, this design is particularly advantageous when the electrical load with the current collector always moves in the same direction in the longitudinal direction L, as is common, for example, in the case of electric overhead rail systems in the area of ​​production lines. There, the current collectors usually always move in the same direction along the production line during normal operation, so that the use of the Fig. 5 to 8 shown alternative sliding contact receptacle 22 is particularly advantageous. The retaining lamellas 24, 24' can then preferably be directed against the direction of travel, so that the sliding contact 8 is constantly pressed against the front edges of the retaining lamellas 24, 24' during travel and is thus firmly held in the sliding contact receptacle 9.

[0045] However, in applications where the sliding contact 8 is often moved in alternating directions, the retaining lamellas 24, 24' can advantageously also be bevelled in the opposite direction, i.e. in Fig. 5 to 8 on one side wall 23 to the right and on the opposite side wall 23' to the left. As a result, the sliding contact 8 is pressed at least against the edges of the retaining slats 24 and 24', respectively, facing against the direction of travel, when moving in both directions.

[0046] A further advantage of the alternative sliding contact holder 22 is that the removal of the sliding contact 8 is also easier for the maintenance personnel when the holding slats 24, 24' run in the feed direction Z.

[0047] In both cases, i.e. the holding lamellas 12, 12' running in the longitudinal direction L and the holding lamellas 19, 19' running in the feed direction Z, it should be noted that the distance between their front edges is preferably somewhat smaller than the width W of the sliding contact 8 and in particular of the insertion area 8b in the transverse direction Q, so that when the sliding contact 8 is inserted into the sliding contact receptacle 9 or 22, a good mechanical hold as well as a good electrical connection can be established between the sliding contact receptacle 9 or 22 and the holding lamellas 12, 12' or 24, 24'. This then also ensures a firm fit and a good electrical connection of the sliding contact 8 to the sliding contact connection 14 during operation, and on the other hand enables a quick replacement of a worn or damaged sliding contact 8 without having to laboriously remove the entire current collector 7 or the sliding contact holder 9 or 22.

[0048] For both embodiments of the sliding contact holder 9 or 22 shown above, it should be noted that the sliding contact receptacle 9 or 22 embedded therein is advantageous, particularly when the sliding contact holder 9 is to be electrically insulating to the outside, since it can be completely cast into the material of the sliding contact holder 9 or integrated in another way.

[0049] If necessary, the sliding contact receptacles 9, 22 can not be permanently cast, but can be inserted into the sliding contact holder 9 from above. For this purpose, it is then advantageous to provide no locking projections 18, 18' on the front and rear end faces 16, 16' in the longitudinal direction. The sliding contact receptacles 9, 22 can then, with a corresponding design, be inserted into the sliding contact holder 14 from above, in particular if the side walls 8, 8' and 18, 18' of the sliding contact receptacles 9 and 22 can be moved somewhat elastically towards one another. For this purpose, the end-face side walls 11, 11' and 25, 25', i.e. those running in the transverse direction Q, are preferably omitted from the sliding contact receptacles 9 and 22, so that a substantially U-profile shape results when viewed from above in the longitudinal direction L.

[0050] In a further alternative embodiment, the sliding contact receptacles 9 and 22 can also be designed directly as sliding contact holders 14, so that no additional side walls 15, 15', 16, 16' surrounding the sliding contact receptacles 9 and 22 are required. This is particularly the case when, at low voltage levels or due to the installation situation, electrical insulation of the sliding contact 8 by the sliding contact holder 14 is not necessary. In this respect, the production of the sliding contact holder 14 can then be further simplified, since it can then be formed directly from the sliding contact receptacles 9 and 22.

[0051] Instead of the plurality of retaining lamellas 12, 12' or 24, 24' shown in the drawings, a smaller number may be used, and their configuration may also be different. For example, instead of the herringbone configuration, a triangular configuration may be used, with the tips of the triangles pointing toward each other and toward the side walls of the sliding contact 8, 8'. Likewise, instead of a cross-section that appears triangular from above, a trapezoidal cross-section or a circular segment may be used. However, the retaining lamellas preferably have relatively sharp edges, as in the herringbone-like retaining lamellas described in detail above, or in the case of a triangular cross-section.

[0052] If necessary, retaining slats 12, 12' or 24, 24' may also be provided on only one of the side walls 10, 10' or 23, 23'. The distance between these retaining slats 12, 12' or 24, 24' from the opposite side wall 10, 10' or 23, 23' is then again somewhat less than the width W of the insertion area 8b.

[0053] If necessary, the arrangements can be made according to the Figures 1 to 4 or 5 to 8 can also be combined, for example in that holding slats 12 running in the longitudinal direction L are provided on one of the side walls 10, 10' or 23, 23' and holding slats 24 running in the insertion direction Z are provided on the opposite side wall 10', 10 or 23', 23. If necessary, the orientation of the holding slats 12, 12' or 24, 24' can also be changed in sections in the longitudinal direction L on one or both side walls 10', 10 or 23', 23.

[0054] Furthermore, the retaining slats 12, 12' or 24, 24' can advantageously also run obliquely to the longitudinal direction L and insertion direction Z on the side walls 10', 10 or 23', 23.

[0055] If necessary, alternatively or additionally, retaining lamellas can be arranged or formed on the end walls 11, 11' of the interior 9a or 22a of the sliding contact receptacle 9 or 22, which are otherwise designed like the retaining lamellas 12, 12' or 24, 24' described above. In this case, the distance between the unloaded end-face retaining lamellas 11, 11' is again somewhat smaller than the length of the insertion area 8b in the longitudinal direction L. Here, too, the combinations of different orientations of the retaining lamellas described above can be adopted; for example, the end-face retaining lamellas can run in the insertion direction Z, while the retaining lamellas 12, 12' on the side walls 10', 10 run in the longitudinal direction L. It is also conceivable that retaining lamellas are provided only on one, two, three or all sides 15, 15', 16, 16' of the sliding contact holder 9 or 22.

[0056] In a further alternative embodiment, the longitudinal side walls of the sliding contact 8 extending in the longitudinal direction L can also taper downwards in the insertion area 8b, so that the side walls 10, 10' or 23, 23' of the sliding contact receptacle 9 or 22 also taper downwards accordingly and / or at least the retaining lamellas 12, 12' extend further inward downwards. This can simplify the insertion of the insertion area 8b of the sliding contact 8 into the sliding contact receptacle 9.

[0057] The retaining slats 12, 12' can be interrupted in the longitudinal direction L, wherein advantageously adjacent retaining slats 12, 12' can be interrupted at different locations in the longitudinal direction L. List of reference symbols

[0058] 1 Conductor rail system 2 Conductor rail 3 Conductor profile 4 Trough-shaped sliding section 5 Insulating profile 6 Longitudinal slot 7 Current collector 8 Sliding contact 8a Sliding contact area 8b Sliding contact insertion area 9 Sliding contact receptacle 9a Interior of sliding contact receptacle 10, 10' Side walls of sliding contact receptacle in longitudinal direction 11, 11' Front walls of sliding contact receptacle 12, 12' Holding lamellas in longitudinal direction 13 Base of sliding contact receptacle 14 Sliding contact holder 15, 15' Side walls of sliding contact holder 16, 16' Front walls of sliding contact holder 17, 17' Longitudinal locking projections of sliding contact holder 18, 18' Front locking projections of sliding contact holder 19 Sliding contact connection 20 Connection element 21, 21' Recesses for Extraction tool 22alternative sliding contact holder 22aInterior alternative sliding contact holder 23, 23'Side walls sliding contact holder 24, 24'Holding lamellas in feed direction 25,25`front walls sliding contact holder LLongitudinal direction of conductor line, current collector or sliding contact holder QTransverse direction WDepth of the sliding contact transverse to the longitudinal direction and feed direction ZFeed direction or insertion direction of sliding contact, height direction of sliding contact holder,

Claims

1. Sliding contact holder (14) for receiving a sliding contact (8) movable along a conductor rail (2) in the longitudinal direction (L) thereof and electrical contacting the conductor rail (2), the sliding contact holder (14) has at least one sliding contact connector (19) for electrical connection to a connector element (20) of an electrical consumer movable along the conductor rail (2), the sliding contact holder (14) having a sliding contact receptacle (9; 22) with an interior space (9a; 22a) for receiving at least part of an insertion region (8b) of the sliding contact (8), and wherein the sliding contact holder (9; 22) has retaining slats (12, 12; 24, 24') projecting into the interior space (9a; 22a) for releasably retaining the sliding contact (8) in the sliding contact holder (9a; 22a), characterised in that free ends of the retaining slats (12, 12'; 24, 24') project inclined into the interior space (9a; 22a) surrounded by the sliding contact receptacle (9; 22), wherein adjacent retaining slats (12, 12'; 24, 24') extend parallel to one another.

2. Sliding contact holder (14) according to claim 1, characterised in that the free ends of the retaining slats (12, 12'; 24, 24') project inclined into the interior space (9a; 22a) surrounded by the sliding contact holder (9; 22) against an insertion direction (Z) of the sliding contact (8) into the sliding contact holder (9).

3. Sliding contact holder (14) according to one of the preceding claims, characterised in that the free ends of the retaining slats (12, 12'; 24, 24') are sharp-edged.

4. Sliding contact holder (14) according to one of the preceding claims, characterised in that the holding slats (12, 12'; 24, 24') project into the interior space (9a; 22a) in the manner of a herringbone, in particular one above the other in a height direction (Z) of the sliding contact holder (9) or next to each other in the feed direction or insertion direction of the sliding contact (8) or the height direction (Z) of the sliding contact holder (22) and / or that free ends of the retaining slats (12, 12'; 24, 24') are designed to bear against the sliding contact (8).

5. Sliding contact holder (14) according to one of the preceding claims, characterised in that the retaining slats (12, 12'; 24, 24') are arranged on at least one side wall (10, 10'; 23, 23') of the interior space (9a; 22a) of the sliding contact holder (9; 22).

6. Sliding contact holder (14) according to claim 5, characterised in that further retaining slats (12, 12'; 24, 24') projecting into the interior space (9a; 22a) are arranged on a side wall (10, 10'; 23, 23') of the interior space (9a; 22a) of the sliding contact holder (9; 22) opposite the at least one side wall (10, 10'; 23, 23').

7. Sliding contact holder (14) according to one of claims 1 to 6, characterised in that the retaining slats (12, 12') extend in a direction parallel to the longitudinal direction (L) of the sliding contact (8) contacting the conductor rail (2).

8. Sliding contact holder (14) according to one of claims 1 to 6, characterised in that the retaining slats (24, 24') extend in a direction parallel to the insertion direction of the sliding contact (8) into the sliding contact holder (22).

9. Sliding contact holder (14) according to one of the preceding claims, characterised in that, when the sliding contact (8) is not inserted, the distance between retaining slats (12, 12'; 24, 24') or between one side of the interior space (9a; 22a) and retaining slats (12, 12'; 24, 24') arranged on the opposite side of the interior space (9a; 22a) is smaller than the width (W) of the insertion region (8b) transverse to and / or in the longitudinal direction (L).

10. Sliding contact holder (14) according to one of the preceding claims, characterised in that the sliding contact holder (9; 22) and / or the retaining slats (12, 12'; 24, 24') consist of an electrically conductive material, and / or in that the retaining slats (12, 12'; 24, 24') are elastic, and / or in that the retaining slats (12, 12; 24, 24') consist of a material which is harder than the material of which the sliding contact (8) consists.

11. Sliding contact holder (14) according to one of the preceding claims, characterised in that the sliding contact holder (9; 22) and the retaining slats (12, 12'; 24, 24') are formed in one piece, and / or in that the sliding contact holder (14) consists of an electrically conductive material or of an electrically insulating material, in particular plastic.

12. Current collector (7), having at least one sliding contact holder (14) for receiving a sliding contact (8) provided for sliding electrical contacting with the conductor rail (2), characterised in that the sliding contact holder (14) is designed according to one of claims 1 to 11.

13. Conductor rail system (1) with a conductor rail (2) extending in a longitudinal direction (L) and a current collector (7) movable longitudinally therealong for the electrical supply of an electrical consumer movable along the conductor rail (2), characterised in that the current collector (7) is designed according to claim 12.