EP3671790B1 - Arrangement of a load bearing element and a cover of a switching block - Google Patents

Description

The invention relates to an arrangement of a carrier part and at least one cover of a switch strip, in particular a load switch strip, preferably a fuse switch strip. The switching strip is preferably a low-voltage, high-performance (NH) load switching strip.

Switching strips of the type mentioned at the beginning typically have contact elements connected to power supply lines and power outlets, with an electrical fuse or a separating knife being insertable into the contact elements for the purpose of forming an electrical connection between the contact elements.

As a rule, such switching strips have a lower part with connections for busbars and / or cables, a carrier part that can be connected to the lower part and a cover mounted in the carrier part, the cover having a cover part, the cover part at least one receptacle for storing an electrical fuse or a cutting knife. The cover usually has a switching lever mounted pivotably in the cover part, for the purpose of moving the cover part from a first end position to a second end position and vice versa.

With regard to the movement of the cover part for the purpose of switching the switching strip by moving the cover part from the first end position to the second end position and vice versa, basically two different embodiments are known, namely on the one hand a parallel displacement of the cover part and on the other hand a pivoting or tilting movement of the cover part of the carrier part.

In the case of switching strips of the type mentioned at the outset, the cover is usually removably supported in the carrier part. As a result, the electrical fuse or the cutting knife can be easily inserted into the receptacle of the cover part when the cover is removed from the carrier part.

From the EP 1 993 116 A1 , which relates to a fuse switch strip, an arrangement of a support part and a cover of a switching strip is known, which has the features of the preamble of claim 1. The cover is removably stored in the carrier part and a cover part of the cover has three receptacles for the storage of so-called NH fuse links. The cover part can be moved along a straight line relative to the carrier part in order to transfer the cover part from a first end position to a second end position and vice versa. The arrangement also has a switch lever for moving the cover part from the first end position to the second end position and vice versa, the switch lever being mounted in the cover part so as to be pivotable about a pivot axis between a first pivot position and a second pivot position. In the second pivot position of the shift lever, the cover part is in the second end position. The cover also has a guide structure in the form of a projection formed on a side wall of the cover part and a side wall of the support part of a first counter-structure corresponding to the guide structure in the form of a recess for guiding the movement of the cover part in the support part. Furthermore, the shift lever has a bearing structure in the form of a bearing journal, the bearing structure being designed at a distance from the pivot axis of the shift lever and wherein the side wall of the carrier part has a second counter-structure, wherein the bearing structure is movably mounted in the second counter structure of the side wall. The bearing structure and the second counter structure serve to convert a pivoting movement of the switching lever into a lifting movement of the cover part. In this respect, the second counter-structure in the present case forms a link guide for the bearing structure designed as a bearing journal.

An arrangement of a support part and a cover of a switching strip, which also has the features of the preamble of claim 1, is also from EP 0 563 530 A1 known, which concerns a circuit breaker.

In order to bring the cover removed from the carrier part into the carrier part, in the case of the switching strips known from the prior art, both the guide structure must be inserted into the first counter-structure and the bearing structure must be inserted into the second counter-structure. Accordingly, for the purpose of inserting the cover into the carrier part, the switching lever must be in a certain pivoted position and be held in this pivoted position, then the insertion points for the first counter-structure and the second counter-structure must be found and the cover aligned accordingly and both the guide structure and the Bearing structure are introduced into the first counter structure and the second counter structure. Accordingly, it is relatively expensive to insert the cover into the carrier part. Particularly in poor lighting conditions, as are typically found in switch cabinets for such switch strips, buildings for switch cabinets for such switch strips or in the dark, it is necessary to insert the cover into the carrier part and / or remove the cover from the carrier part for the purpose of replacing or inserting electrical fuses and / or a cutting knife considerable effort.

The object of the present invention is to further develop an arrangement of a carrier part and at least one cover of a switching strip, which has the features of the preamble of claim 1, in such a way that the cover can be removed from the carrier part and the cover inserted into the carrier part is simplified.

This object is achieved by an arrangement of a carrier part and at least one cover of a switching strip, which has the features of claim 1.

It is provided that the second counter structure merges into the first counter structure.

As a result of this design of the first counter-structure and the second counter-structure, namely that the second counter-structure merges into the first counter-structure, the second counter-structure and the first counter-structure have identical insertion points for the purpose of inserting the guide structure and the bearing structure. Accordingly, for the purpose of inserting the cover into the support part, it is not necessary to find several different insertion points for the bearing structure and the guide structure and to insert the respective structure into these insertion points, but rather only the insertion point for the first counter structure has to be found, in which both the bearing structure and the the guide structure can also be introduced for the purpose of connecting the cover to the carrier part.

It is also entirely conceivable that the first counter-structure and the second counter-structure intersect.

With regard to the guide structure, it can be formed, for example, on a side wall of the cover part. But it is also conceivable that the shift lever has the guide structure. For example, the shift lever can have the guide structure in the pivot axis.

In a preferred embodiment, the guide structure is formed on the side wall of the cover part.

In a preferred embodiment, the carrier part can be connected to a lower part of the switching strip, the lower part having contacts connected to a power supply and a current outlet, with a lower part connected to the carrier part and an electrical fuse arranged in the receptacle of the cover part or one in the receptacle arranged cutting knife this electrical fuse or the cutting knife in the second end position of the cover part contacts the contacts of the lower part.

It is considered to be particularly advantageous if the first counter structure is accessible from an upper edge of the side wall of the carrier part facing the cover part, whereby the cover part can be inserted into the carrier part from the side facing the upper edge of the side wall or the cover part can be inserted in the direction of the Upper edge of the side wall of the support part can be removed from the support part.

In the first pivoting position of the shift lever, the bearing structure can preferably be guided out of the first counter-structure in the direction of the upper edge of the side wall.

In a particularly preferred embodiment, the cover part can be removed from the carrier part in the direction of the upper edge of the side wall, in particular against an insertion direction of the cover part.

As already described in relation to the prior art, the bearing structure, in cooperation with the second counter structure, serves to convert the pivoting movement of the switching lever into a lifting movement of the cover part.

In a particularly preferred embodiment, the first counter-structure and the second counter-structure are designed as recesses. Accordingly, the transition from the second counter-structure to the first counter-structure is designed such that the second counter-structure opens into the first counter-structure.

However, it is also entirely conceivable that both the first counter-structure and the second counter-structure are formed by projections, with an interruption of the projections in the transition area between the second counter-structure and the first counter-structure in order, for example, to enable the guide structure to pass through in the transition area.

With regard to the first counter-structure and second counter-structure formed as recesses, it is considered to be particularly advantageous if the recess forming the first counter-structure is open in the direction of the upper edge of the side wall of the carrier part facing the cover part. In this embodiment, a particularly simple introduction of the cover part into the carrier part or a removal of the cover part from the carrier part is possible.

The bearing structure is preferably designed as a projection, in particular as a bearing journal.

In a particularly preferred embodiment, the second counter-structure merges into the first counter-structure in an intermediate area formed between a first section of the first counter-structure and a second section of the first counter-structure, the bearing structure being arranged in the intermediate area of the first counter-structure in the first pivot position of the shift lever .

The cover part is preferably removed from the carrier part in such a way that the switch lever is transferred into the first pivot position of the switch lever, the bearing structure being in the area of the first counter structure in the first pivot position of the switch lever. Following the pivoting of the switch lever, a tensile force is exerted on the cover part, in particular via the switch lever, the bearing structure in the first counter-structure being displaced in the direction of the upper edge of the side wall of the support part and guided out of the support part. If, in the first pivot position of the shift lever, the guide structure is also still in the first counter-structure, this guide structure is also in the case of the action of the tensile force Direction of the upper edge of the side wall of the support part led out of the first counter structure.

With regard to the aforementioned embodiment with an intermediate area of the first counter-structure, it is considered particularly advantageous if the second section of the first counter-structure has a contact structure for the bearing structure on a side of the second section facing the upper edge, to prevent the bearing structure from being transferred into the second section the first counter structure. Such a design has several advantages: On the one hand, the bearing structure cannot be introduced into the second section of the first counter-structure. On the other hand, when the cover part is inserted into the carrier part, it is easier to transfer the bearing structure into the second counter-structure, since when the cover part is inserted into the carrier part, the bearing structure comes to rest against the contact structure in the intermediate area and the shift lever for the purpose of transferring the bearing structure into the second counter-structure only needs to be pivoted, since the bearing structure, when it is in contact with the system structure, is in a position in which the bearing structure can be pivoted into the second counter structure. Furthermore, the system structure also serves the safety of the operator, since when inserting the cover part into the carrier part or when removing the cover part from the carrier part, the system structure prevents the bearing structure from being transferred into the second section of the first counter-structure, which leads to an uncontrolled Prevents contact between an electrical fuse arranged in the receptacle of the cover part or a separating knife arranged in the receptacle of the cover part with the contacts of a lower part.

In the first pivoting position of the shift lever, the bearing structure can preferably be guided out of the first counter-structure along the straight line in the direction of the upper edge of the side wall.

In a particularly preferred embodiment, the second counter structure has a first section and a second section. The second counter structure furthermore has a stop section between the first section and the second section for frictional support of the bearing structure in an intermediate position of the shift lever when the shift lever is pivoted from the second pivot position, the bearing structure being arranged in the second pivot position in the first section of the second counter-structure and is arranged in the first pivot position in the second section of the second counter structure. The second counter-structure also has a freewheel section adjoining the stop section, the freewheel section opening into the second section and the bearing structure being movable in the area of the freewheel section in the direction of the upper edge of the side wall, in particular along the straight line in the direction of the upper edge of the side wall. This intermediate position of the switch lever preferably corresponds to the first end position of the cover part, in this first end position of the cover part an electrical fuse that can be arranged in the receptacle or a separating knife that can be arranged in the receptacle and contacts of a lower part connected to the carrier part are separated from one another. The stop section thus prevents unintentional transfer of the switching lever into the first pivot position and thus unintentional removal of the cover part from the carrier part. In the usual operation of the switching strip, namely when switching the switching strip, that is, when moving the cover part from the first end position to the second end position and vice versa, the switching lever is accordingly only pivoted between the second pivot position and the intermediate position, with the stop section pivoting further Shift lever prevented. To remove the cover part from the carrier part, the switching lever must first be moved from the second pivot position to the intermediate position, in which there is preferably no contact between the contacts of the lower part and the cutting knife or electrical fuse arranged in the receptacle of the cover part. Subsequently, a tensile force has to be exerted on the cover part or the switching lever on the cover in order to transfer the bearing structure into the freewheel section, with the bearing structure arranged in the region of the freewheel section further pivoting the Shift lever from the intermediate position into the first pivot position is possible, in which the cover part can then be removed from the carrier part.

The second section of the second counter structure can certainly be formed by a partial area of the first counter structure.

The stop section is designed in particular as a bearing pocket, a bearing pocket here being understood to mean that the stop section partially surrounds or partially engages behind the bearing structure in the intermediate position.

The switching lever preferably has a holding structure and the cover part has a counter-structure corresponding to the holding structure, for holding the switching lever in the first pivot position and / or the second pivot position and / or the intermediate position. In particular, the holding structure and the counter structure act together in a locking manner in the corresponding pivot position.

The insertion direction for inserting the cover part into the carrier part is preferably configured parallel to the straight line along which the cover part can be moved relative to the carrier part.

To ensure particularly good guidance of the cover part in the carrier part, the cover part has auxiliary guide structures for guiding the cover part in the carrier part along the straight line, the guide structure being designed to lead in the direction of insertion of the cover part into the carrier part relative to the auxiliary guide structures. This ensures that despite the presence of auxiliary guide structures for the purpose of inserting the cover part into the carrier part, only the point of use of the first counter-structure needs to be found.

In a preferred embodiment, the arrangement is designed in such a way that the bearing structure in the first pivot position of the shift lever in the insertion direction of the cover part is arranged in front of the guide structure. Thus, for the purpose of introducing the cover part into the carrier part, the bearing structure must first be introduced into the first counter-structure.

With regard to a simple replacement or introduction of an electrical fuse and / or a cutting knife into the cover part, it is considered to be particularly advantageous if the cover part with the guide structure can be introduced into the carrier part in a trailing manner. Accordingly, the cover part can be introduced into the carrier part in two opposite orientations, with an introduction of the cover part into the carrier part with a following guide structure corresponding to a so-called "parking position". In this parking position of the cover part, the at least one receptacle of the cover part is easily accessible. For the purpose of changing / inserting the electrical fuse or the electrical cutting blade, the cover part is accordingly first removed from the carrier part, then inserted in the opposite direction into the carrier part, whereby the cover part is in the parking position. In this state, the electrical fuse or the cutting knife can be easily replaced or inserted by the operator.

Preferably, the cover part can only be introduced into the carrier part in a certain pivoted position of the shift lever in the parking position. It is entirely conceivable that the shift lever has a guide structure which is introduced in a corresponding counter-structure when the cover part is inserted into the carrier part for the purpose of forming the parking position.

In this context, it is considered advantageous if the switching lever has a holding structure and the cover part has a counter-structure corresponding to the holding structure for holding the switching lever in the pivoted position for inserting the cover part into the carrier part for the purpose of forming the parking position.

With regard to a particularly simple handling of the arrangement for the purpose of introducing the cover part into the carrier part or removing the cover part the carrier part is provided in a preferred embodiment that the cover part has a stop for the switch lever, wherein the switch lever rests against the stop in the first pivot position. The stop can certainly be formed by the guide structure.

In order to prevent the cover part from being inserted into the carrier part in an incorrect pivoting position of the switch lever, the switch lever preferably has a contact structure, wherein in the second pivot position of the switch lever the contact structure when the cover part is inserted into the carrier part, before the cover part reaches the second end position, comes to rest on a counter structure of the side wall of the support part. In this way, unwanted contacting of contacts of the lower part of the switching strip and of the separating knife or electrical fuse, which may be arranged in the receptacle, is avoided.

The counter-structure of the side wall of the carrier part, on which the contact structure comes to rest, can definitely be formed by the upper edge of the side wall of the carrier part.

In a preferred embodiment of the arrangement, the arrangement has a plurality of covers, the respective cover having a cover part with a receptacle, preferably with a single receptacle, and a switching lever.

In an alternative embodiment, the at least one cover part has a plurality of receptacles for storing an electrical fuse or a cutting knife.

In particular, the arrangement has three lids, each with a single receptacle for storing an electrical fuse or a cutting knife, or alternatively the arrangement has a single cover, the cover part of the lid having three receptacles for storing an electrical fuse or a disconnecting knife. But there are also other embodiments conceivable. Thus, the arrangement can also have a single cover with a single receptacle or also have several covers each with a single receptacle, for example two covers, four covers, five covers or six covers. The arrangement can also have one or more covers with a single receptacle, two receptacles, three receptacles, four receptacles, five receptacles or six receptacles. Furthermore, it is entirely conceivable for the arrangement to have several covers with the same or a different number of receptacles.

The first counter-structure preferably has sections which engage behind the guide structure transversely to the direction of movement, in particular perpendicular to the direction of movement, of the cover part.

In a preferred embodiment, the second counter-structure and / or the first counter-structure has partial areas, these partial areas engaging behind the bearing structure transversely to the direction of movement of the bearing structure, in particular perpendicular to the direction of movement of the bearing structure.

It is considered to be particularly advantageous if the cover has two guide structures opposite one another with respect to a longitudinal axis of the cover and the carrier part has two first counter-structures opposite one another with respect to a longitudinal axis of the carrier part.

In an advantageous further development, it is provided that the switching lever has two bearing structures opposite one another with respect to the longitudinal axis of the cover and the carrier part has two opposite second counter-structures with respect to the longitudinal axis of the carrier part.

Figure description

In the figures, the invention is shown on the basis of several exemplary embodiments, without being restricted thereto.

Fig. 1

eine erste Ausführungsform einer Anordnung eines Trägerteils und dreier Deckel einer Schaltleiste, wobei das Trägerteil mit einem Unterteil der Schaltleiste verbunden ist, mit einem Deckelteil des jeweiligen Deckels in einer zweiten Endstellung und mit einem Schalthebel des jeweiligen Deckels in einer zweiten Schwenkstellung, in einer perspektivischen Ansicht,

Fig. 2

die Anordnung gemäß Fig. 1, mit dem mittleren Deckelteil in einer ersten Endstellung des Deckelteils und dem Schalthebel des mittleren Deckelteils in einer Zwischenstellung, in einer perspektivischen Ansicht,

Fig. 3

die Anordnung gemäß Fig. 1, mit einem Schalthebel des mittleren Deckelteils in einer ersten Schwenkstellung, in einer perspektivischen Ansicht,

Fig. 4

die Anordnung gemäß Fig. 1, mit dem mittleren Deckelteil in einer aus dem Trägerteil entnommenen Stellung, in einer perspektivischen Ansicht,

Fig. 5

einen Teilbereich des Trägerteils gemäß Fig. 1, in einer Seitenansicht,

Fig. 6

einen Teilbereich der Anordnung gemäß Fig. 4, in einer perspektivischen Ansicht,

Fig. 7

das Deckelteil mit Schalthebel gemäß Fig. 1, in der zweiten Schwenkstellung des Schalthebels, in einer Seitenansicht,

Fig. 8

das Deckelteil mit Schalthebel gemäß Fig. 1, in der Zwischenstellung des Schalthebels, in einer Seitenansicht,

Fig. 9

das Deckelteil mit Schalthebel gemäß Fig. 1, in der ersten Schwenkstellung des Schalthebels, in einer Seitenansicht,

Fig. 10

einen Teilbereich der Anordnung gemäß Fig. 1, in einer Seitenansicht,

Fig. 11

einen Teilbereich der Anordnung gemäß Fig. 2, in einer Seitenansicht,

Fig. 12

einen Teilbereich der Anordnung gemäß Fig. 3, in einer Seitenansicht,

Fig. 13

einen Teilbereich der Anordnung gemäß Fig. 1, mit dem Deckelteil und dem Trägerteil in einer Anlageposition, in einer Seitenansicht

Fig. 14

die Anordnung gemäß Fig. 1, mit dem Deckelteil in einer Parkposition, in einer perspektivischen Ansicht,

Fig. 15

eine zweite Ausführungsform der Anordnung eines Trägerteils und eines Deckels einer Schaltleiste, in einer perspektivischen Ansicht.

Show it:

Fig. 1

a first embodiment of an arrangement of a carrier part and three covers of a switching strip, wherein the carrier part is connected to a lower part of the switching strip, with a cover part of the respective cover in a second end position and with a switching lever of the respective cover in a second pivot position, in a perspective view ,

Fig. 2

the arrangement according to Fig. 1 , with the middle cover part in a first end position of the cover part and the switching lever of the middle cover part in an intermediate position, in a perspective view,

Fig. 3

the arrangement according to Fig. 1 , with a switching lever of the middle cover part in a first pivot position, in a perspective view,

Fig. 4

the arrangement according to Fig. 1 , with the middle cover part in a position removed from the carrier part, in a perspective view,

Fig. 5

a portion of the carrier part according to Fig. 1 , in a side view,

Fig. 6

a portion of the arrangement according to Fig. 4 , in a perspective view,

Fig. 7

the cover part with switching lever according to Fig. 1 , in the second pivot position of the shift lever, in a side view,

Fig. 8

the cover part with switching lever according to Fig. 1 , in the intermediate position of the shift lever, in a side view,

Fig. 9

the cover part with switching lever according to Fig. 1 , in the first pivot position of the shift lever, in a side view,

Fig. 10

a portion of the arrangement according to Fig. 1 , in a side view,

Fig. 11

a portion of the arrangement according to Fig. 2 , in a side view,

Fig. 12

a portion of the arrangement according to Fig. 3 , in a side view,

Fig. 13

a portion of the arrangement according to Fig. 1 , with the cover part and the support part in a contact position, in a side view

Fig. 14

the arrangement according to Fig. 1 , with the cover part in a parking position, in a perspective view,

Fig. 15

a second embodiment of the arrangement of a carrier part and a cover of a switching strip, in a perspective view.

The Figs. 1 to 14 illustrate a first embodiment of the inventive arrangement of a carrier part 2 and at least one cover of a switching strip 1, the arrangement having three covers. The respective cover has a cover part 3 each with a single receptacle for storing an electrical fuse 24 or a cutting knife.

The respective cover and thus the respective cover part 3 together with the switch lever 8 of the cover is removably supported in the carrier part 2. The cover part 3 can be moved along a straight line Z relative to the carrier part 2 in order to transfer the respective cover part 3 from a first end position to a second end position and vice versa.

The Figs. 1 to 4 show the arrangement of the carrier part 2 and the three cover parts 3 in a state in which the carrier part 2 with a lower part of the switching strip 1 connected is. The lower part of the switching strip 1 has a pair of contacts for each cover part 3 for making contact with the electrical fuse 24 that can be arranged in the receptacle of the respective cover part 3 or the cutting knife that can be arranged in the receptacle of the cover part 3. In the second end position of the cover part 3, a separating knife arranged in the cover part 3 or an electrical fuse 24 arranged in the cover part 3 would contact the contacts.

A side wall 4 of the respective cover part 3 has a guide structure 5 in the form of two walls 22 running parallel to the straight line Z. A side wall 6 of the carrier part 2 has a first counter-structure 7 corresponding to the respective guide structure 5, the first counter-structure 7 being designed as a recess.

The recess forming the first counter-structure 7 is open in the direction of an upper edge of the side wall 6 of the carrier part 2 facing the cover part 3.

The first counter structure 7 serves to guide the movement of the cover part 3 in the carrier part 2 along the straight line Z.

The respective cover has a switching lever 8, the respective switching lever 8 being mounted in the cover part 3 assigned to this switching lever 8 such that it can pivot about a pivot axis 9. The respective shift lever 8 can be pivoted about the pivot axis 9 between a first pivot position and a second pivot position. The respective switch lever 8 is used to transfer the cover part 3 from the first end position to the second end position and vice versa, with the cover part 3 being in the second end position in the second pivot position of the switch lever 8.

The respective shift lever 8 has a bearing structure 10, the bearing structure 10 being formed at a distance from the pivot axis 9.

In the present case, the bearing structure 10 is designed as a projection, namely as a bearing journal.

The side wall 6 of the carrier part 2 has a second counter structure 11 in the form of a recess, the bearing structure 10 being movably supported in the second counter structure 11 of the side wall 6.

The second counter structure 11 forms a link guide for the bearing structure 10 for converting the pivoting movement of the shift lever 8 into a lifting movement of the cover part 3.

The recess forming the second counter structure 11 opens into the recess forming the first counter structure 7. The second counter structure 11 thus merges into the first counter structure 7.

In the Figs. 1 to 14 As shown in the first embodiment, the second counter-structure 11 opens into the first counter-structure 7 in an intermediate region 14 formed between a first section 12 of the first counter-structure 7 and a second section 13 of the first counter-structure 7.

Like the one in particular Fig. 3 and 12 As can be seen, the bearing structure 10 is arranged in the first pivot position of the shift lever 8 in the intermediate region 14 of the first counter-structure 7. Like the one in particular Fig. 4 As can be seen, in this state the cover part 3 can be removed together with the switching lever 8 in the direction of the upper edge of the side wall 6 of the carrier part 2 against the insertion direction Z from the carrier part 2, the bearing structure 10 and the guide structure 5 from the first counter structure 7 in FIG Direction of the upper edge of the side wall 6 can be led out.

The direction of insertion Z is parallel to the straight line Z.

The introduction of the cover part 3 into the carrier part 2 takes place in the opposite direction, with both the bearing structure 10 and the guide structure 5 in the direction of insertion Z are introduced into the first counter structure 7.

In this case, in the first pivot position of the switching lever 8, the bearing structure 10 is arranged leading in the insertion direction Z of the cover part 3 relative to the guide structure 5. Thus, when the cover part 3 is inserted into the carrier part 2, the bearing structure 10 is first inserted into the first counter structure 7 and then the guide structure 5 is inserted into the first counter structure 7.

The second section 13 of the first counter-structure 7 has a contact structure 21 in the form of a projection on a side of the second section 13 facing the upper edge, for contacting the bearing structure 10 in order to transfer the bearing structure 10 into the second section 13 of the first counter-structure 7 prevent.

Correct insertion of the cover part 3 into the carrier part 2 is also facilitated by this contact structure 21, since when the cover part 3 is inserted into the carrier part 2 and thus when the bearing structure 10 is introduced into the first counter-structure 7, the bearing structure 10 comes to rest against the contact structure 21 , with the bearing structure 10 being arranged adjacent to the second counter structure 11 when the bearing structure 10 rests against the abutment structure 21. This is what the Fig. 12 . By pivoting the shift lever 8 from the first pivot position in the direction of the second pivot position, the bearing structure 10 can then be transferred into the second counter-structure 11.

The second counter-structure 11 has a first section 15 and a second section 16, the second counter-structure 11 having a stop section 17 between the first section 15 and the second section 16 for frictional support of the bearing structure 10 in an intermediate position of the shift lever 8 at a Pivoting the shift lever 8 from the second pivot position, in which the bearing structure 10 is located in the first section 15 of the second counter structure 11, into the first pivot position, in which the bearing structure 10 is arranged in the second section 16 of the second counter structure 11 is. The stop section 17 thus prevents the bearing structure 10 from being able to be transferred from the first section 15 of the second counter structure 11 to the second section 16 of the second counter structure 11 by simply pivoting the shift lever 8. This prevents unintentional removal of the cover part 3 from the carrier part 2. The intermediate position of the switch lever 8 corresponds to the first end position of the cover part 3, in which an electrical fuse 24 arranged in the receptacle of the cover part 3 or a separating knife arranged there is separated from the contacts of the lower part.

In normal operation, the switching lever 8 is typically only pivoted between the second pivot position and the intermediate position and vice versa, whereby the switching strip 1 is switched.

The second counter structure 11 has a freewheel section 18 adjoining the stop section 17, the freewheel section 18 opening into the second section 16 and the bearing structure 10 in the area of the freewheel section 18 in the direction of the upper edge of the side wall 6, in particular along the straight line Z in the direction of the Upper edge of the side wall 6 is movable. In order to move the switch lever 8 into the first pivot position in order to remove the cover part 3 together with the switch lever 8 from the carrier part 2, it is necessary to exert a tensile force on the cover part 3, e.g. by means of the switch lever 8, when the switch lever 8 is in the intermediate position in order to move the bearing structure 10 into the freewheel section 18 and there in the direction of the upper edge of the side wall 6. Subsequently, by further pivoting the shift lever 8 in the direction of the first pivot position, the bearing structure 10 is transferred to the second section 16 of the second counter-structure 11 and from there to the intermediate area 14 of the first counter-structure 7.

The shift lever 8 has two holding structures 19 and the cover part 3 each has a counter structure 20 corresponding to the respective holding structure 19. The respective counter-structure 20 is designed as a projection and the respective holding structure 19 as a through opening. In the first pivoting position, one of the holding structures is effective 19 and the one counter structure 20 together for holding the shift lever 8 in the first pivot position, as shown in FIG Figure 9 is shown. In the intermediate position, the other holding structure 19 and the other counter-structure 20 work together to hold the shift lever 8 in the intermediate position, as shown in FIG Figure 8 is shown.

Like the one in particular Fig. 14 As can be seen, the cover part 3 with the guide structure 5 can be subsequently introduced into the carrier part 2, resulting in a so-called parking position of the cover part 3 in the carrier part 2, in which a particularly simple change or exchange or insertion of the cutting knife or the electrical fuse 24 is possible.

The cover part 3 has a stop for the shift lever 8, the shift lever 8 resting against the stop in the first pivot position, the stop being formed by the guide structure 5 in the present case.

The switch lever 8 has a contact structure 23, wherein in the second pivot position of the switch lever 8 the contact structure 23 comes to rest on the side wall 6 of the carrier part 2 when the cover part 3 is inserted into the carrier part 2 before the second end position of the cover part 3 is reached, whereby a further introduction of the cover part 3 into the carrier part 2 is prevented. Such a state shows the Fig. 13 .

The Fig. 15 Fig. 11 illustrates a further embodiment of the arrangement, the in fig Fig. 15 The arrangement shown differs from that in Fig. 1 The arrangement shown differs essentially in that the arrangement does not have three covers, but only one cover, wherein in contrast to the arrangement according to FIG Fig. 1 one cover part 3 of the cover has three receptacles for storing an electrical fuse 24 or a cutting knife. The cover in turn has a switching lever 8 which is pivotably mounted in the one cover part 3.

In the case of the Fig. 15 The arrangement shown, the electrical fuses 24 and cutting blades are switched together, whereas in the arrangement according to FIG Fig. 1 a separate switching of the respective electrical fuse 24 or the respective cutting knife is possible.

List of reference symbols

1

Switching strip

2

Carrier part

3

Cover part

4th

Side wall

5

Management structure

6th

Side wall

7th

First counter structure

8th

Gear lever

9

Swivel axis

10

Warehouse structure

11

Second counter structure

12

first section

13

second part

14th

Intermediate area

15th

first section

16

second part

17th

Stop section

18th

Freewheel section

19th

Holding structure

20th

Counter structure

21st

Investment structure

22nd

Wall

23

Investment structure

24

Electrical fuse

Claims (15)

1. Arrangement of a carrier part (2) and at least one cover, which is removably mounted in the carrier part (2) of a switching strip (1), wherein the cover has a cover part (3), wherein the cover part (3) has at least one receptacle for mounting an electrical fuse (24) and/or an isolating blade, wherein the cover part (3) is movable relative to the carrier part (2) along a straight line (Z) for transferring the cover part (3) from a first end position into a second end position, and vice versa, wherein the cover has a switching lever (8) for transferring the cover part (3) from the first end position into the second end position, and vice versa, wherein the switching lever (8) is mounted in the cover part (3) so as to be pivotable about a pivot axis (9) between a first pivoting position and a second pivoting position, wherein, in the second pivoting position of the switching lever (8), the cover part (3) is situated in the second end position, wherein the cover has a guide structure (5), and a side wall (6) of the carrier part (2) has a first counterpart structure (7) corresponding to the guide structure (5), for guiding the movement of the cover part (3) in the carrier part (2), wherein the switching lever (8) has a bearing structure (10), wherein the bearing structure (10) is formed at a distance from the pivot axis (9), wherein the side wall (6) of the carrier part (2) has a second counterpart structure (11), wherein the bearing structure (10) is mounted so as to be movable in the second counterpart structure (11) of the side wall (6),
   characterized in that
   the second counterpart structure (11) transitions into the first counterpart structure (7).
2. Arrangement according to Claim 1, wherein the first counterpart structure (7) and the second counterpart structure (11) take the form of cutouts, wherein the cutout forming the first counterpart structure (7) is open in the direction of the upper edge, which faces the cover part (3), of the side wall (6) of the carrier part (2).
3. Arrangement according to Claim 1 or 2, wherein the bearing structure (10) takes the form of a bearing pin.
4. Arrangement according to one of Claims 1 to 3, wherein the second counterpart structure (11) transitions, in particular opens, into the first counterpart structure (7) in an intermediate region (14) formed between a first portion (12) of the first counterpart structure (7) and a second portion (13) of the first counterpart structure (7), wherein, in the first pivoting position of the switching lever (8), the bearing structure (10) is arranged in the intermediate region (14) of the first counterpart structure (7).
5. Arrangement according to Claim 4, wherein the second portion (13) of the first counterpart structure (7) has, on a side of the second portion (13) that faces the upper edge, an abutment structure (21) for the bearing structure (10), for preventing the bearing structure (10) from being transferred into the second portion (13) of the first counterpart structure (7).
6. Arrangement according to one of Claims 1 to 5, wherein, in the first pivoting position of the switching lever (8), the bearing structure (10) can be guided out of the first counterpart structure (7) along the straight line (Z) in the direction of the upper edge of the side wall (6).
7. Arrangement according to one of Claims 1 to 6, wherein the second counterpart structure (11) has a first portion (15) and a second portion (16), wherein the second counterpart structure (11) has, between the first portion (15) and the second portion (16), a stop portion (17) for force-fittingly supporting the bearing structure (10) in an intermediate position of the switching lever (8) during a pivoting movement of the switching lever (8) from the second pivoting position into the first pivoting position, wherein, in the second pivoting position, the bearing structure (10) is arranged in the first portion (15) of the second counterpart structure (11), and, in the first pivoting position, is arranged in the second portion (16) of the second counterpart structure (11), wherein the second counterpart structure (11) has a free-running portion (18) adjoining the stop portion (17), wherein the free-running portion (18) opens into the second portion (16), and the bearing structure (10), in the region of the free-running portion (18), is movable in the direction of the upper edge of the side wall (6), in particular along the straight line (Z) in the direction of the upper edge of the side wall (6) .
8. Arrangement according to one of Claims 1 to 7, wherein the switching lever (8) has a holding structure (19), and the cover part (3) has a counterpart structure (20) corresponding to the holding structure (19), for holding the switching lever (8) in the first pivoting position and/or the second pivoting position and/or the intermediate position, in particular for holding the switching lever (8) in a latching manner in the first pivoting position and/or the second pivoting position and/or the intermediate position.
9. Arrangement according to one of Claims 1 to 8, wherein a direction of insertion (Z) for inserting the cover part (3) into the carrier part (2) is formed parallel to the straight line (Z).
10. Arrangement according to one of Claims 1 to 9, wherein the cover part (3) has auxiliary guide structures for guiding the cover part (3) in the carrier part (2) along the straight line (Z), wherein, in the direction of insertion (Z) of the cover part (3) into the carrier part (2), the guide structure (5) is designed to lead with respect to the auxiliary guide structures.
11. Arrangement according to one of Claims 1 to 10, wherein, in the first pivoting position of the switching lever (8), the bearing structure (10) is arranged to be leading with respect to the guide structure (5) in the direction of insertion (Z) of the cover part (3).
12. Arrangement according to one of Claims 1 to 11, wherein the cover part (3) can be inserted into the carrier part (2) with the guide structure (5) trailing.
13. Arrangement according to one of Claims 1 to 12, wherein the cover part (3) has a stop for the switching lever (8), wherein the switching lever (8) bears against the stop in the first pivoting position.
14. Arrangement according to one of Claims 1 to 13, wherein the switching lever (8) has an abutment structure (23), wherein, in the second pivoting position of the switching lever (8), the abutment structure (23), upon inserting the cover part (3) into the carrier part (2), before reaching the second end position of the cover part (3), comes into abutment with a counterpart structure of the side wall (6) of the carrier part (2).
15. Arrangement according to one of Claims 1 to 14, wherein the arrangement (1) has a plurality of covers, wherein the respective cover has a cover part (3) with a receptacle and has a switching lever (8), or wherein the cover part (3) of the at least one cover has a plurality of receptacles for mounting a respective electric fuse (24) or an isolating blade.

Images