EP3671791A1 - Arrangement of a load bearing element and at least one cover of a switch strip - Google Patents

Abstract

The invention relates to an arrangement of a carrier part (2) and at least one cover (3) of a safety edge (1), in particular a power switch, preferably a fuse switch. The cover (3) has a cover part (4) and a shift lever (5), the cover part (4) being movably mounted in the carrier part (2) for transferring the cover part (4) from a first end position to a second end position and vice versa, the shift lever (5) being mounted in the cover part (4) so as to be pivotable about a pivot axis, for transferring the shift lever (5) from a first pivot position to a second pivot position and vice versa, the shift lever (5) being connected to the carrier part ( 2) cooperates to convert a pivoting movement of the switching lever (5) into a movement of the cover part (4) relative to the carrier part (2), the cover part (4) being arranged in the first end position in the first pivoting position of the switching lever (5) . The cover (3) has a mechanical locking device (6), the locking device (6) having locking means which can be moved between an open position and a locking position and vice versa, the locking means in the locking position having a positive fit between the shift lever (5) and the carrier part ( 2) or between the switching lever (5) and the cover part (4), to prevent the switching lever (5) from pivoting from the first pivot position into the second pivot position, and wherein the locking means in the locking position form-fit between the cover part (4) and cause the carrier part (2) to prevent the cover part (4) from moving from the first end position into the second end position.

Description

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

Switching strips of the type mentioned at the beginning typically have contact elements connected to current leads and current outlets, an electrical fuse or a disconnecting knife being insertable into the contact elements in order to form 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 support part which can be connected to the lower part and a cover mounted in the support part, the cover having at least one receptacle for storing an electrical fuse and / or a disconnecting knife. The cover usually has a cover part and a shift lever pivotally mounted in the cover part, for the purpose of transferring the cover part from a first end position into a second end position and vice versa.

With regard to the movement of the cover part for the purpose of switching the safety edge by transferring the cover part from the first end position into the second end position and vice versa, basically two different embodiments are known, namely a parallel displacement of the cover part and a pivoting or tilting movement of the cover part with respect to the carrier part.

Such switching strips are for example from the EP 1 993 116 A1 as well as the DE 381 25 04 A1 known.

Safety edges are usually equipped with electrical fuses. However, devices are also used, especially for infeed systems, which are not equipped with electrical fuses but with cut-off knives. This also takes into account the low power loss and short-circuit protection on the primary side of the supply transformer. Dynamic switching current resistance, namely the safety edge, is often expected here. This means that in the event of a short circuit, the safety edge deliberately does not respond.

The load on the load switching strip results here on the one hand from the current peak when the power is switched on and on the other hand from the load in the event of a short circuit (usually 1 second). In particular, the dynamic load during the electrical switch-on process of an upstream structure often leads to the fact that the separating knives and / or the electrical fuses are thrown out of the contacts of the safety edge by the current dynamic repulsive forces. This creates a risk to people and facilities.

Locking devices can prevent the cutting knife or the electrical fuse from being thrown out.

From the EP 1 199 732 A2 a mechanical blocking device for cutting knives is known. The separating knife is inserted into a contact arrangement, the blocking device preventing the separating knife from being thrown out of the contact arrangement in the event of a short circuit. For this purpose, the blocking device has an element for transmitting a blocking force in the event of a short circuit the contact arrangement on the cutting knife.

Furthermore, from the DE 44 19 240 A1 a single-pole or multi-pole NH switching strip is known, which comprises a lower part with current-carrying parts for receiving fuse links, an upper part with a switching cover pivotally mounted therein by means of a pivot bearing, which together cover the current-carrying parts in a contact-safe manner. On the underside of the switch cover there is a separating knife which is firmly connected to the switch cover and which can be inserted into or removed from the lower part instead of a fuse link using the switch cover. On the side of the switch cover opposite the pivot bearing, the NH switch strip has a locking device with which the switch cover can be secured in the closed position against unintentional pivoting out. To improve the dynamic strength, the locking device is designed as a detachable connection between the switch cover or the separating knife firmly connected to it and the lower part or the current-carrying parts arranged in the lower part.

From the aforementioned EP 1 993 116 A1 An arrangement of a carrier part and at least one cover of a safety edge is known, which has the features of the preamble of claim 1. The cover has a cover part and a shift lever, the cover part being movably mounted in the carrier part for transferring the cover part from a first end position to a second end position and vice versa. In the first end position of the cover part, the cover is in a closed position, in the closed position a separating knife arranged in the cover part or an electrical fuse arranged in the cover part contacts contacts of a lower part which can be connected to the carrier part, the contacts having a power supply and a power outlet are connected. The shift lever is pivotally mounted in the cover part about a pivot axis, for transferring the shift lever from a first pivot position into a second pivot position and vice versa, the shift lever cooperating with the carrier part for transferring a pivoting movement of the Shift lever in a movement of the cover part relative to the carrier part. The cover part is arranged in the first pivot position of the shift lever in the first end position.

The object of the present invention is to develop an arrangement of a carrier part and at least one cover of a safety edge, which has the features of the preamble of claim 1, in such a way that this arrangement reliably prevents the separating knife from being thrown out in the event of a short circuit. In particular, it should be ruled out that damage to the carrier part and / or the cover and / or a switching strip having the arrangement occurs. Furthermore, the arrangement according to the invention, in particular advantageous developments of the arrangement, should make it possible to easily retrofit existing safety edges in order to protect them against damage, in particular when using separating knives, in the event of a short-circuit current, or to endanger the environment of the safety edge in the event of a short-circuit current to prevent.

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

It is provided that the cover has a mechanical locking device, the locking device having locking means that can be moved between an open position and a locking position and vice versa. In the locking position, the locking means bring about a form fit between the shift lever and the carrier part or between the shift lever and the cover part, in order to prevent the shift lever from pivoting from the first pivot position into the second pivot position. Furthermore, in the locking position, the locking means bring about a form fit between the cover part and the carrier part, in order to prevent the cover part from moving from the first end position into the second end position.

With this design of the mechanical locking device, on the one hand the shift lever is secured directly against pivoting of the shift lever from the first pivot position into the second pivot position and, on the other hand, the cover part is secured directly against movement from the first end position into the second end position of the cover part. Thus, the mechanical locking device effectively causes a double locking of the cover in the event of a force acting on the cover, for example as a result of a short-circuit current. As a result, the lid is particularly well secured in the carrier part. The locking is achieved by an interaction between the cover, the carrier part and the locking device, so that no direct interaction of the locking means with other elements of a switching strip, such as the lower part or components of the lower part, is necessary.

In the locking position, the locking means preferably bring about a positive connection between the shift lever and a side wall of the carrier part and / or between the cover part and the side wall of the carrier part.

Preferably, 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, this electrical fuse being used for a lower part connected to the carrier part and an electrical fuse arranged in the cover part or a separating knife arranged in the cover part or the separating knife contacts the contacts of the lower part in the first end position of the cover part.

The carrier part preferably has fastening means on a base facing the lower part in order to fasten the carrier part on the lower part.

By means of the locking device, it is possible in the locking position to secure the arrangement or a safety edge equipped with the arrangement against the cover being pushed out / ejected in the event of a short circuit, and to enable the cover to be moved in the open position by means of the switching lever, for example, to switch the safety edge and / or to insert or replace a disconnecting knife or an electrical fuse in the cover part. In addition, the locking device prevents inadvertent switching of the safety edge in the locking position.

The locking device is preferably formed by a separate component which is connected to the cover part and / or the shift lever. This design of the locking device enables a particularly simple assembly of the locking device, in particular a production of the locking device independent of the manufacture of the cover part and the shift lever, on the other hand, this design enables an optional equipment of a cover with the mechanical locking device and also a particularly simple equipment or Retrofitting existing covers. Manufacturing costs and in particular manufacturing machines can be saved as a result, since one and the same cover is suitable both for arrangements with and for arrangements without mechanical locking devices and can optionally be retrofitted or equipped with such a mechanical locking device.

The cover part preferably has the locking device or the locking device is connected to the cover part.

Due to the fact that the locking device only interacts with the cover and the support part, it is possible to retrofit existing safety edges with the aforementioned arrangement in a simple manner by the existing support part and the existing cover with a support part and a cover of the arrangement according to the invention to be replaced or exchanged. In this case, in particular the lower part, which typically has cost-intensive components, such as the contacts for the electrical fuses or the disconnecting knife, can continue to be used. In particular, the safety edge can also be retrofitted on a safety edge, the lower part of which is already connected to current outlets and / or current accesses. To that extent is a Disconnecting the lower part for retrofitting the safety edge is not necessary.

Retrofitting is also possible in an uncomplicated manner, since the carrier part can be detached from the lower part in a simple manner or the new carrier part can be connected to the old lower part in a simple manner.

Because the cover has the mechanical locking device or the mechanical locking device is connected to the cover part and / or the shift lever, the mechanical locking device is secured against loss, whereas with a separate mechanical locking device, that is to say one that is not connected to the carrier part or the lid is connected, there is a risk that it will be lost in the open position.

The locking means can certainly have several locking elements. However, it is also entirely conceivable that the locking means have only one locking element, in particular the locking means are formed by only one locking element.

It is considered to be particularly advantageous if the locking means have at least one locking element, the at least one locking element in the locking position providing a form fit between the shift lever and the carrier part or between the shift lever and the cover part, in order to prevent the shift lever from pivoting out of the first pivot position in the second swivel position, and the at least one locking element also brings about a form fit between the cover part and the carrier part, to prevent the cover part from moving from the first end position into the second end position. Thus, one and the same locking element effects both a form fit between the shift lever and the carrier part or between the shift lever and the cover part and a form fit between the cover part and the carrier part. As a result, particularly few components are required, since one and the same component, namely the locking element, takes on two different tasks, namely the locking of the cover part and the locking of the gear lever.

In this context, it is considered to be particularly advantageous if the forces acting on the at least one locking element, which act on the locking element due to the shift lever and on the locking element due to the cover part, do not act on the locking element in the same but in different directions. This reduces the mechanical load on the locking element in the form of the resulting force, in particular a shear force that arises due to the positive locking, and prevents damage to the locking element or even destruction of the locking element, since the resulting force is less than the sum of the amounts of the acting forces.

The locking device preferably has a means for transferring the locking means from the open position into the locking position and vice versa. The means can, for example, have a handle, an engagement, a projection or a recess in order to facilitate actuation of the means, in particular manual actuation of the means.

The means can certainly be a component, in particular an integral component, of the locking means.

The means for transferring the first locking means from the open position into the locking position and vice versa is designed in particular as a manually operable means, in particular as a handle.

The means preferably has a receptacle for receiving a tool, for example a hexagon wrench or a screwdriver.

However, it is also quite conceivable that the means is designed as a receptacle for a special tool, in particular a special key. Unauthorized transfer of the locking means from the open position into the locking position is thus prevented and vice versa, and thus in particular prevents unauthorized switching of a switching strip equipped with the arrangement.

The means is preferably designed as a separate component, which cooperates with the locking means when the means is actuated, for transferring the locking means from the open position into the locking position and vice versa.

It is considered to be particularly advantageous with regard to simple operation if the means is rotatably mounted in a receptacle of the locking device.

In a particularly preferred embodiment, in the locking position the locking means fix the shift lever in the first pivot position and / or the locking means fix the cover part in the first end position. The term “fix” is understood to mean that pivoting of the shift lever out of the first pivoting position or movement of the cover part out of the first end position in the locking position is prevented.

However, it is also entirely conceivable that in the locking position it is possible to pivot the shift lever from the first pivot position in the direction of the second pivot position into an intermediate position between the first pivot position and the second pivot position. In an embodiment of this type, pivoting of the shift lever out of the first pivot position is thus possible in the locking position, but the locking means in the locking position in the intermediate position of the shift lever prevent further pivoting of the shift lever into the second pivot position.

It is also quite conceivable that, in the locking position, moving the cover part from the first end position in the direction of the second end position into one Intermediate position between the first end position and the second end position is possible. In such an embodiment, although the cover part can be moved from the first end position in the locking position, the locking means in the locking position in the intermediate position of the cover part prevent the cover part from moving further into the second end position.

For certain areas of application, an embodiment with the aforementioned intermediate position of the shift lever and / or the cover part can be advantageous. For example, the game present in such an embodiment has an advantageous effect on the assembly of the switching device and the operation of the locking device, since, for example, manufacturing tolerances or alignment tolerances are less important.

The locking device is preferably connected to the cover part or the shift lever. In particular, the locking device is arranged on a side of the cover facing away from the carrier part. The locking device is particularly preferably connected to the cover part.

It is considered to be particularly advantageous if the shift lever has a swivel arm, the swivel arm being arranged adjacent to a side wall of the carrier part. The shift lever preferably has two pivot arms, the respective pivot arm in each case adjoining a side wall of the carrier part. In particular, the swivel arms each adjoin the respective side wall on a side facing the other side wall.

It is considered to be particularly advantageous if a side wall of the carrier part and / or a pivot arm of the shift lever has a support structure for supporting a locking element of the locking means. This support structure can be designed, for example, as a projection.

The support structure of the carrier part and / or the support structure is preferred of the shift lever is designed as a recess, the locking element being arranged in the recess in the locking position. Such a support structure can be manufactured in a particularly simple and inexpensive manner, or a carrier part or a shift lever with such a support structure can be manufactured in a particularly simple and inexpensive manner.

The recess is designed in particular as a through opening.

In order to enable the shift lever to be pivoted into the intermediate position between the first pivot position and the second pivot position, which is provided, in an advantageous development, the corresponding through opening is designed as an elongated hole.

In order to enable the cover part to be moved into the optionally provided intermediate position between the first end position and the second end position in the locking position, it is provided in an advantageous development that the corresponding through opening is designed as an elongated hole.

With regard to a particularly simple design of the stiffening element, it is considered to be advantageous if the through opening of the support part and the support structure of the shift lever or the support structure of the support part and the through opening of the shift lever are axially aligned in the first end position and the first pivot position. In this case, the locking element can have a particularly simple structure, namely a rectilinear structure, wherein in the locking position the locking element interacts with the through opening of the carrier part and with the support structure of the shift lever or the locking element passes through the through opening of the shift lever and interacts with the support structure of the carrier part .

Both the carrier part and the shift lever preferably have a support structure in the form of a through opening, in the locking position a rectilinear section of the locking element passes through the axially aligned through openings.

The locking element preferably passes through the side wall of the carrier part and / or the pivot arm of the shift lever in the locking position.

In this context, it is considered to be particularly advantageous if the locking device is connected to the cover part and, in the locking position, the locking element passes through both the shift lever and the side wall of the carrier part.

With regard to a particularly high mechanical stability of the locking, it is considered advantageous if the locking means have a first locking element and a second locking element, the locking elements being arranged opposite one another with respect to a longitudinal axis of the carrier part in the locking position.

The locking elements can certainly be formed by partial sections, in particular by end sections, of a common component, for example by end sections of a rod-shaped component.

However, the locking elements are preferably formed by separate components.

With regard to the embodiment of the locking means with a first locking element and a second locking element, it is considered to be particularly advantageous if the respective locking element in the locking position brings about a positive connection between the shift lever and the carrier part or between the shift lever and the cover part, in order to prevent the shift lever from pivoting from the first pivot position into the second pivot position, and wherein the respective locking element in the locking position brings about a form fit between the cover part and the carrier part, to prevent the cover part from moving from the first end position into the second end position.

In an advantageous development, the shift lever has two swivel arms, the first locking element passing through the one swivel arm in the locked position and the one side wall of the carrier part having a support structure for the first locking element, and the second locking element passing through the other swivel arm and one opposite the one side wall other side wall of the carrier part has a support structure for the second locking element.

As already stated above, the respective support structure is designed in particular as a recess, preferably as a through opening.

According to the above, it is considered advantageous if in the locking position the first locking element passes through one pivot arm and one side wall of the carrier part and the second locking element passes through the other pivot arm and the other side wall of the carrier part.

It is considered to be particularly advantageous if the first locking element and / or the second locking element, in particular by means of the means for transferring the locking means, is linearly displaceable from the open position to the locking position and vice versa.

The respective locking element is preferably mounted in a linearly displaceable manner in a guide structure of the locking device and the means is rotatably mounted in a receptacle of the locking device, the means having two receptacles in the form of elongated holes and the respective locking element having a bearing pin, the bearing pin of the respective locking element in one of the elongated holes is arranged or, conversely, the center has two bearing pins and the respective locking element has a receptacle in the form of an elongated hole, one of the bearing pins being arranged in the elongated hole of the respective locking element.

It is considered to be particularly advantageous if the locking device has a bearing part, in particular a bearing part designed as a housing, the handle for transferring the locking means from the open position to the locking position and vice versa being mounted in the bearing part and the locking means in the bearing part, in particular the first locking element and the second locking element are mounted. This design of the locking device enables a particularly simple assembly of the locking device, in particular a production of the locking device that is independent of the manufacture of the cover part and the shift lever, on the other hand, this design enables an optional equipment of a cover with the mechanical locking device and also a particularly simple equipment or Retrofitting existing covers. Manufacturing costs and in particular manufacturing machines can be saved as a result, since one and the same cover is suitable both for arrangements with and for arrangements without mechanical locking devices and can optionally be retrofitted or equipped with such a mechanical locking device. In such an embodiment, the locking device can be designed in such a way that the locking device can be preassembled independently of the carrier part and the cover and, for the purpose of equipping the carrier part and the cover part with the locking device, these only in the area of the bearing part with the cover, in particular the cover part , must be connected.

The bearing part is preferably connected to the cover part or the shift lever.

In a preferred embodiment, the bearing part is designed as a housing, the bearing part having a lower housing part and an upper housing part connected to the lower housing part, between the lower housing part and the locking means, in particular the locking elements, are arranged in the upper housing part. The mechanical locking device is preferably arranged on a side of the cover part facing away from the support part, the lower housing part abutting the cover part on the side of the cover part facing away from the support part.

The agent is preferably mounted between the lower housing part and the upper housing part.

The housing is, in particular, a closed housing. This in particular reduces the entry of dirt and / or foreign matter into the area of the locking device which is enclosed by the housing, thereby preventing the locking device, in particular the agent, from being impaired by dirt and / or foreign bodies.

In an advantageous development, it is provided that the locking device has a housing, the locking means, in particular the locking elements, protruding from the housing in the locking position and being movable into the housing, preferably by means of the means.

It is considered to be particularly advantageous if the locking device has a restoring means, the locking means, in particular the first locking element and the second locking element, being transferred from the locking position into the open position against the restoring force of the restoring means. This ensures that the locking means are always in the locking position without the action of external forces, insofar as the cover in the first pivoting position or the shift lever in the first pivoting position are always secured with respect to the carrier part, unless an operator has acted on the locking means becomes.

It is considered to be advantageous if the locking means, in particular the respective locking element, are in a plan view opposite one another in the locking position of a level defined by the respective side wall of the carrier part are arranged in a recessed manner or are flush with this level. This ensures that a switching strip equipped with the arrangement according to the invention does not take up an increased space requirement in the locking position perpendicular to the planes formed by the side walls, so that in particular a directly adjacent arrangement of switching strips is possible, despite the mechanical locking device, since the locking means are not protrude outwards from the side walls.

Figure description

In the figures, the invention is illustrated using an exemplary embodiment, without being limited to this.

Fig. 1

eine Anordnung eines Trägerteils, dreier Deckel und eines Unterteils ei-ner Schaltleiste, in einer perspektivischen Ansicht,

Fig. 2

die Anordnung gemäß Fig. 1 in einer Verriegelungsstellung, in einer Draufsicht, wobei ein Teilbereich der Anordnung geschnitten dargestellt ist,

Fig. 3

einen Teilbereich der Anordnung gemäß der Linie III in Fig. 2,

Fig. 4

die Anordnung gemäß Fig. 1 in einer Offenstellung, in einer Draufsicht, wobei ein Teilbereich der Anordnung geschnitten dargestellt ist,

Fig. 5

einen Teilbereich der Anordnung gemäß der Linie V in Fig. 4,

Fig. 6

der Deckel mit separater Verriegelungseinrichtung gemäß Fig. 1, in einer Explosionsdarstellung, in einer perspektivischen Ansicht,

Fig. 7

die Verriegelungseinrichtung gemäß Fig. 6 in einer Verriegelungsstellung, in einer perspektivischen Ansicht,

Fig. 8

die Verriegelungseinrichtung gemäß Fig. 6 in einer Offenstellung, in einer perspektivischen Ansicht,

Fig. 9

die Verriegelungseinrichtung gemäß Fig. 6 in einer Explosionsdarstellung, in einer ersten perspektivischen Ansicht,

Fig. 10

die Verriegelungseinrichtung gemäß Fig. 6 in einer Explosionsdarstellung, in einer zweiten perspektivischen Ansicht.

Show it:

Fig. 1

an arrangement of a carrier part, three lids and a lower part of a safety edge, in a perspective view,

Fig. 2

the arrangement according to Fig. 1 in a locking position, in a plan view, a partial area of the arrangement being shown in section,

Fig. 3

a portion of the arrangement according to line III in Fig. 2 ,

Fig. 4

the arrangement according to Fig. 1 in an open position, in a plan view, a partial area of the arrangement being shown in section,

Fig. 5

a portion of the arrangement along the line V in Fig. 4 ,

Fig. 6

the lid with a separate locking device according to Fig. 1 , in an exploded view, in a perspective view,

Fig. 7

the locking device according to Fig. 6 in a locked position, in a perspective view,

Fig. 8

the locking device according to Fig. 6 in an open position, in a perspective view,

Fig. 9

the locking device according to Fig. 6 in an exploded view, in a first perspective view,

Fig. 10

the locking device according to Fig. 6 in an exploded view, in a second perspective view.

The 1 to 10 illustrate the arrangement according to the invention of a carrier part 2 and three covers 3 of a switching strip 1, the respective cover 3 having a cover part 4 and a switching lever 5, the switching lever 5 being mounted in the respective cover part 4 so as to be pivotable about a pivot axis 23. The respective cover part 4 is again movable, in the present case movable along a straight line Z, mounted in the carrier part 2.

The respective cover part 4 serves to hold an electrical fuse and / or a cutting knife. The respective cover part 4 can be transferred along the straight line Z from a first end position into a second end position and vice versa, with in the first end position of the cover part 4 an electrical fuse possibly arranged in the cover part 4 or a separating knife arranged in the cover part 4 a pair contacted by contacts which are formed in the lower part 10 of the switching strip 1, the lower part 10 having current outlets and current leads which are connected to the contacts.

The cover part 4 is transferred from the first end position into the second end position and vice versa by means of the respective shift lever 5, which can be pivoted between a first pivot position and a second pivot position, the shift lever 5 cooperating with the carrier part 2 for converting the pivoting movement of the shift lever 5 into a movement of the cover part 4 relative to the carrier part 2. The cover part 4 is arranged in the first pivot position of the shift lever 5 in the first end position.

In the Fig. 1 the left cover part 4 is in the second end position and the corresponding shift lever 5 is in the second pivot position. The remaining two cover parts 4 and the corresponding shift lever 5 are in the first end position or first pivot position.

In the present case, the respective shift lever 5 has two swivel arms 13, one swivel arm 13 being arranged adjacent to a side wall 12 of the carrier part 2 and the other swivel arm 13 being arranged adjacent to another side wall 12 of the carrier part 2 opposite one side wall 12.

The pivoting movement of the shift lever 5 into a movement of the cover part 4 with respect to the carrier part 2 takes place in that the pivot arms 13 of the shift lever 5 each have a bearing pin 24, the respective bearing pin 24 being formed in a respective side wall 12 of the carrier part 2, Not shown present, arranged guide and is slidably mounted in this.

The lid 3 has a mechanical locking device 6 designed as a separate component, the locking device 6 being connected to the lid part 4 on a side of the lid part 4 facing away from the carrier part 2. Specifically, the mechanical locking device 6 has a housing 11 which is formed by a lower housing part 18 and an upper housing part 17, the housing 11 receiving locking means 7, 8, in the form of a first locking element 7 and a second locking element 8, and a means 9 , wherein the means 9 is used to transfer the locking elements 7, 8 from an open position to a locking position and vice versa.

The upper housing part 17 has two threads 20, two fastening means 16 in the form of screws being screwed into the thread 20 from the side of the cover part 4 facing away from the mechanical locking device 6 for the purpose of connecting the mechanical locking device 6 to the cover part 4.

The lower housing part 18 and the upper housing part 17 are connected to one another by means of retaining clips 19.

The Fig. 2 and 3rd show the arrangement in a locking position of the mechanical locking device 6 and Fig. 4 and 5 show the arrangement in an open position.

The respective swivel arm 13 and the respective side wall 12 have a support structure 14 in the form of a through opening 14.

Like the one in particular Fig. 1 , 3rd and 5 It can be seen that the through openings are axially aligned in the first end position of the cover part 4 or in the first pivot position of the shift lever 5.

Like especially the Fig. 3 It can be seen that the first locking element 7 passes through the one swivel arm 13 and the one side wall 12 of the carrier part 2, specifically a straight section of the first locking element 7 is arranged in the axially aligned through openings 14 of the swivel arm 13 and the side wall 12. Accordingly, the second locking element 8 passes through the other swivel arm 13 and the other side wall 12 of the carrier part 2 opposite the one side wall 12. Accordingly, the locking elements 7, 8 are arranged opposite one another in the locking position with respect to a longitudinal axis 15 of the carrier part 2.

The aforementioned design of the side walls 12, the swivel arms 13 and the Locking elements 7, 8 have the effect that the respective locking element 7, 8 effects a form fit between the shift lever 5 and the carrier part 2, specifically the respective side wall 12 of the carrier part 2, to prevent the shift lever 5 from pivoting from the first pivot position into the second pivot position , and that the respective locking element 7, 8 in the locking position causes a positive connection between the cover part 4 and the carrier part 2, specifically the respective side wall 12 of the carrier part 2, to prevent the cover part 4 from moving from the first end position into the second end position. There is thus a double locking of the cover 3.

In the locked position, the locking elements 7, 8 are arranged essentially without play in the through openings 14 of the side walls 12 and the through openings 14 of the swivel arms 13. Thus, the locking elements 7, 8 fix the shift lever 5 in the first pivot position and the cover part 4 in the first end position.

Like especially the Fig. 3 can be seen, the respective locking element 7, 8 is arranged in the locking position in a plan view set back from a plane defined by the respective side wall 12, thus the locking elements 7, 8 do not protrude outward from the side walls 12 of the carrier part 2 in the locking position .

The means 9 for transferring the locking means 7, 8 from the open position into the locking position and vice versa is a manually operable means 9, which in the present case has a receptacle for a hexagon wrench and a receptacle for a slotted screwdriver.

By turning the means 9, the locking elements 7, 8 are linearly displaceable, the means 9 for this purpose having two receptacles 22 in the form of elongated holes, a bearing pin 21 of the respective locking element 7, 8 being arranged in one of the elongated holes. Furthermore, the upper housing part 17 each has a guide structure, in this case in the form of a straight line Projection, for the locking elements 7, 8, wherein the respective locking element 7, 8 has a counter structure corresponding to the guide structure, in the present case in the form of a groove.

By turning the means 9, the locking elements 7, 8 can be moved together out of the housing 11 and into the housing 11. In the locking position, which among other things in the Fig. 7 is shown, the locking elements 7, 8 protrude from the housing 11. In the open position, which among other things in the Fig. 8 is shown, the locking elements 7, 8 are completely moved into the housing 11, so that there is no longer a positive connection between the shift lever 5 and the carrier part 2 and between the cover part 4 and the carrier part 2 and between the shift lever 5 and the cover part 4, thus a Swiveling of the shift lever 5 from the first swivel position into the second swivel position and accordingly also movement of the cover part 4 from the first end position into the second end position is possible.

Reference symbol list

1

Safety edge

2nd

Carrier part

3rd

cover

4th

Cover part

5

Gear lever

6

Locking device

7

first locking element

8th

second locking element

9

medium

10th

Lower part

11

Bearing part / housing

12

Side wall

13

Swivel arm

14

Support structure

15

Longitudinal axis

16

Fasteners

17th

Upper part of the housing

18th

Lower part of the housing

19th

Holding clips

20th

thread

21st

Bearing journal

22

admission

23

Swivel axis

24th

Bearing journal

Claims (15)

Arrangement of a support part (2) and at least one cover (3) of a switching strip (1), the cover (3) having a cover part (4) and a shift lever (5), the cover part (4) being movable in the support part (2 ) is mounted, for transferring the cover part (4) from a first end position into a second end position and vice versa, the shift lever (5) being pivotably mounted in the cover part (4) about a pivot axis (23), for transferring the shift lever (5 ) from a first pivot position into a second pivot position and vice versa, the switching lever (5) cooperating with the carrier part (2) for converting a pivoting movement of the switching lever (5) into a movement of the cover part (4) relative to the carrier part (2) , wherein the cover part (4) is arranged in the first pivot position of the shift lever (5) in the first end position,
characterized in that
the cover (3) has a mechanical locking device (6), the locking device (6) having locking means (7, 8) which can be moved between an open position and a locking position and vice versa, the locking means (7, 8) in the locking position having a positive fit between the switching lever (5) and the carrier part (2) or between the switching lever (5) and the cover part (4) to prevent the switching lever (5) from pivoting from the first pivot position into the second pivot position, and wherein the locking means (7 , 8) in the locking position cause a positive connection between the cover part (4) and the carrier part (2), to prevent the cover part (4) from moving from the first end position into the second end position. Arrangement according to claim 1, characterized in that in the locking position the locking means (7, 8) fix the shift lever (5) in the first swivel position and / or the locking means (7, 8) fix the cover part (4) in the first end position. Arrangement according to claim 1 or 2, characterized in that the locking device (6) is connected to the cover part (4) or the shift lever (5), in particular the locking device (6) on a side facing away from the carrier part (2) with the cover part ( 4) is connected. Arrangement according to one of claims 1 to 3, characterized in that a side wall (12) of the carrier part (2) and / or a swivel arm (13) of the shift lever (5) has a support structure (14) for supporting a locking element (7 or 8 ) the locking means (7, 8). Arrangement according to claim 4, characterized in that the support structure (14) of the carrier part (2) and / or the support structure (14) of the shift lever (5) is designed as a recess, wherein in the locking position the locking element (7 or 8) in the recess is arranged. Arrangement according to claim 5, characterized in that in the locking position, the locking element (7 or 8) passes through the side wall (12) of the carrier part (2) and / or the swivel arm (13) of the shift lever (5). Arrangement according to one of claims 1 to 6, characterized in that the locking means (7, 8) have a first locking element (7) and a second locking element (8), the locking elements (7, 8) in the locking position with respect to a longitudinal axis ( 15) of the carrier part (2) are arranged opposite one another. Arrangement according to claim 7, characterized in that the shift lever (5) has two swivel arms (13), the first locking element (7) passing through the one swivel arm (13) in the locking position and the one side wall (12) of the carrier part (2) having a support structure (14) for the first locking element (7 ), and in the locking position the second locking element (8) passes through the other swivel arm (13) and one of the side walls (12) opposite the other side wall (12) of the carrier part (2) has a support structure (14) for the second locking element ( 8). Arrangement according to one of claims 1 to 8, characterized in that the locking device (6) has a means (9) for transferring the locking means (7, 8) from the open position into the locking position and vice versa. Arrangement according to one of claims 1 to 9, characterized in that the locking means (7, 8), in particular the first locking element (7) and / or the second locking element (8) are linearly displaceable. Arrangement according to one of claims 1 to 10, characterized in that the locking device (6) has a bearing part, in particular a bearing part designed as a housing (11), the locking means (7, 8), in particular the first locking element ( 7) and the second locking element (8) are mounted. Arrangement according to one of claims 1 to 11, characterized in that the bearing part is connected to the cover part (4) or the shift lever (5). Arrangement according to one of claims 1 to 12, characterized in that the locking device (6) has a housing (11), the locking means (7, 8), in particular the locking elements (7, 8), in protrude from the locking position relative to the housing (11) and can be moved into the housing (11). Arrangement according to one of claims 1 to 13, characterized in that the locking device (6) has a restoring means, wherein a transfer of the locking means (7, 8), in particular the first locking element (7) and the second locking element (8), from the Locked position in the open position against the restoring force of the restoring means. Arrangement according to one of claims 1 to 14, characterized in that the locking means (7, 8), in particular the respective locking element (7, 8), in the locking position in a top view compared to a support part (2) through the respective side wall (12). defined level are set back or flush with this level.

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