EP1180779A2 - Handle - Google Patents

Abstract

The handgrip (100) incorporates a mechanical display device, e.g. a display pin (38), for providing a display function indicating the operating condition of the fuse (1), in dependence on its position relative to one of the outer surfaces of the handgrip. The actual position of the mechanical display device may be monitored via a microswitch (46), for remote indication of the fuse operating condition.

Description

The invention relates to a handle for attachment to a equipped with an indicator function indicating the operating state electrical fuse arrangement, in particular a low-voltage high-performance fuse.

Low-voltage high-performance fuses (hereinafter referred to as NH fuses) have been known for many decades. They are common designed for use with voltages of the order of magnitude up to 500V and rated currents up to 1000A.

As the circuit when a maximum permissible current is exceeded separating functional element are used for these NH fuses, which are interchangeably inserted in an insulating housing. To that Operating personnel the operating status of an NH fuse inserted in the circuit the additional use of so-called signal detectors is to be indicated known with firing pin. These are fuses with a mostly cylindrical housing, in which a spring-loaded Impact pin and a melting element are housed, which the firing pin in its position in the housing the spring force holds back. These signal detectors are connected in parallel to the respective one NH fuse switched into the circuit. Interrupts the NH fuse by melting the melting insert the circuit, so also melts the melting element of the signaling device, causing the firing pin is released and under its spring force in its extended, out protruding position in the housing of the signaling device, causing the triggering of the NH fuse is visible from the outside.

In order to be able to remotely signal a trip of the NH fuse, it is the became known, on the side of the striker one with a Remote status display coupled microswitch to arrange the is operated by the snap-out firing pin.

• Nach jedem Durchschmelzen der NH-Sicherung ist der Ersatz des gesamten Signalmelders erforderlich, was auf Dauer zu erheblichen zusätzlichen Betriebskosten einer mit NH-Sicherungen ausgestatteten elektrischen Einrichtung führt.
• Wenn nicht mit zusätzlichem Mikroschalter zur Betriebszustandsfernanzeige versehen, ist der durch die Position des Schlagstifts charakterisierte Betriebszustand schlecht oder sogar nicht ablesbar.
• Der Einsatz eines Berührungsschutzes, der verhindert, daß die unter Spannung befindlichen Teile der NH-Sicherung gegen versehentliches Berühren geschützt sind, ist nicht möglich, da der Signalmelder hierdurch für das Bedienpersonal nicht mehr sichtbar wäre.
• Wegen des Fehlens des Berührungsschutzes kann die NH-Sicherung samt Signalmelder nicht unter Spannung ausgetauscht werden.

The use of these signal detectors with firing pin has the following disadvantages, among others:

• Every time the NH fuse blows, the entire signal detector must be replaced, which in the long term leads to considerable additional operating costs for an electrical device equipped with NH fuses.
• If not provided with an additional microswitch for remote operating status display, the operating status characterized by the position of the striker is difficult or even impossible to read.
• The use of a touch guard, which prevents the live parts of the NH fuse from being accidentally touched, is not possible, as this would make the signal detector no longer visible to the operating personnel.
• Due to the lack of protection against accidental contact, the NH fuse together with the signal detector cannot be replaced under voltage.

1. Als Frontkennmelder bezeichnet man solche, bei denen die Verlagerungsachse des Betätigungsstiftes etwa senkrecht zur Längserstrekkung des Schmelzeinsatzes verläuft und der Betätigungsstift an der im eingebauten Zustand der NH-Sicherung dem Bedienpersonal zugewandten Seite vorgesehen ist.

2. Mit Stirnkennmelder bezeichnet man solche, bei denen die Verlagerungsachse des Betätigungsstiftes etwa parallel zur Längserstreckung des Schmelzeinsatzes verläuft.

To display the operating status of NH fuses, it has also become known to equip their housings with indicators. These in turn comprise indicator pins which indicate that the melting insert has melted through a position projecting beyond the outer contours of the housing. A distinction is made between two different types of indicators:

1. Front indicators are those in which the axis of displacement of the actuating pin is approximately perpendicular to the longitudinal extent of the melting insert and the actuating pin is provided on the side facing the operating personnel in the installed state of the NH fuse.

2. End indicators are those in which the axis of displacement of the actuating pin runs approximately parallel to the longitudinal extent of the melting insert.

It is true that with these NH fuses the additional ones are used Signal detector with firing pin reduces the effort, but it is disadvantageous that the attachment of means for remote operating status with additional effort and, in turn, the use of a Protection against contact would prevent visual access, making the exchange the NH fuse can also only be disconnected from the power supply.

The invention has for its object the visibility of the operating state an NH fuse and improve its manageability.

This object is achieved by the handle reproduced in claim 1 solved.

The fact that the optional in particular on a NH fuse, with is equipped with an indicator, attachable handle includes display means, which indicates the operating state of the indicator function Securing arrangement on at least one of the outer surfaces of the handle display, this can also be installed with the fuse in the circuit remain without the visibility of the by the indicator displayed operating state would be restricted. On the contrary possible to design the display means of the handle so that they can be perceived particularly well by the operating personnel. The handle can immediately be designed such that it is in the circuit located NH fuse completely covered. If it is also made of an electrically insulating material, in this way it also forms a protection against accidental contact, which enables the NH fuse to be able to exchange even under voltage.

The display means of the handle are preferably a mechanical handle display device educated. The fuse arrangement has a mechanical Indicator of the type described above, so is the mechanical Handle display device preferably designed such that it with the mechanical display device of the fuse arrangement in mechanical Connection is established when the handle on the fuse arrangement is attached.

The handle display device then preferably comprises one between one remaining at least essentially within the outer contour of the handle first position and one from the outer contour of the handle protruding second position displaceably arranged display element.

The latter is preferably spring-loaded such that it is in the direction its second, the circuit breaker operating condition of the fuse indicating position is shiftable. However, it is also possible to apply spring force to the display element in the opposite direction. In this case, it is permanently based on the indicator of the NH fuse from.

The display member is preferably by the display device of the Safety arrangement triggerable locking means against the spring force in his first position fixed.

The locking means can be at least one around the axis of displacement of the Display member about vertical pivot axis pivotally arranged Include rocker arm with the indicator in the direction of displacement interacts positively and in a the first position of the display element defining position in the case of a non-triggered indicator function of the Fuse arrangement can be fixed.

Fixing this rocker arm in the first position of the display element Determining position can with the indicator of the fuse arrangement interacting locking means are used, which in the first position of the display member a locking surface of the rocker arm when not triggered Use the indicator function, this when the indicator function is triggered however release.

These locking means can in turn comprise a rocker arm, which by a about tilt axis parallel to the pivot axis arranged pivotally is. This rocker arm can then, depending on whether it is a Fuse arrangement with front indicator or with front indicator acts, be designed differently to the respective direction of movement of the indicator pin in a to release the To implement suitable movement.

If necessary, it can be advantageous to have means for remote reporting on the handle to provide the position of the indicator member of the handle.

These can be, for example, a microswitch operated by the display element include. However, it is also possible to use the means for remote reporting in such a way that the position of the display element in electronic, is determined optically or otherwise.

The handle preferably comprises an assembly that can be assembled from at least two parts, housing having an internal cavity. In this then all components necessary for its functionality must be accommodated, such as the means for displaying the operating status the security arrangement, the locking means and the means for remote reporting.

Fig. 1

eine erste Ausführungsform eines auf eine NH-Sicherung mit Kennmelder aufgesetzten Handgriffs, der aus zwei Gehäuseteilen besteht, wobei lediglich ein Gehäuseteil und die in ihm befindlichen Funktionselemente dargestellt sind, in einer perspektivischen Ansicht, wobei der Handgriff den Stromdurchgang durch die Sicherung anzeigt;

Fig. 2

denselben Handgriff in derselben Darstellung wie in Fig. 1, jedoch in einer ein Durchschmelzen des Schmelzeinsatzes anzeigenden Zustand;

Fig. 3

ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Handgriffs in einer Fig. 1 entsprechenden Darstellung, jedoch für eine NH-Sicherung mit Stirnkennmelder in einem die Stromdurchleitung durch die NH-Sicherung anzeigenden Zustand;

Fig. 4

denselben Handgriff wie in Fig. 3 in einer entsprechenden Darstellung, jedoch in einem das Durchschmelzen des Schmelzeinsatzes charakterisierenden Zustand;

Fig. 5

ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Handgriffs in einer Fig. 1 entsprechenden Ansicht, wobei jedoch auf die Darstellung der NH-Sicherung verzichtet wurde sowie

Fig. 6

ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Handgriffs in einer Fig. 5 entsprechenden Darstellung.

In the drawing, an embodiment of the invention is shown. Show it:

Fig. 1

a first embodiment of a handle placed on an NH fuse with indicator, which consists of two housing parts, only one housing part and the functional elements located therein are shown in a perspective view, the handle indicating the passage of current through the fuse;

Fig. 2

the same handle in the same representation as in Figure 1, but in a condition indicating a melting of the melting insert.

Fig. 3

a further embodiment of a handle according to the invention in a representation corresponding to FIG. 1, but for an NH fuse with a front indicator in a state indicating the current transmission through the NH fuse;

Fig. 4

the same handle as in Figure 3 in a corresponding representation, but in a state characterizing the melting of the melting insert;

Fig. 5

a further embodiment of a handle according to the invention in a view corresponding to FIG. 1, but the NH fuse has been omitted and

Fig. 6

a further embodiment of a handle according to the invention in a representation corresponding to FIG. 5.

The NH fuse designated as a whole in FIGS. 1 and 2 comprises 10 a ceramic fuse body 1, which is not recognizable in the drawing Has longitudinal opening. In this is a melt insert 2 from one used electrically conductive material, the ends 3, 3 'of the Protective body 1 protrude and electrical connections for contacting of clamping contacts usually provided in a fuse holder, which are not shown in the drawing serve. The security body 1 includes the NH fuse in its inserted state 10 side 4 facing the operating personnel is designed in a known manner Indicator 5. This comprises a cylindrical display element 6, which in the current-carrying state of the NH fuse 10, i.e. with intact Melting insert 2 completely within the outer contours of the fuse body 1 remains (see FIG. 1) when the melt insert has melted and the related interruption of the circuit, however protrudes beyond the outer contours of the fuse body 1 (see FIG. 2).

Because of this arrangement of the indicator 5 "NH fuse with front indicator" designated fuse includes on the two of the Melting insert penetrated sides end plates 7, 7 ', depending on the intended use the NH fuse made of a non-conductive plastic material or can also be made of metal. On the operator facing side 4 are the end plates 7, 7 'above the side 4 defined level and each lead to a transverse constriction 8, 8 ' having extensions 9, 9 '. The latter serve to secure one as a whole with 100 designated handle, the one shown in Figs. 1 and 2 Embodiment comprises a hollow housing 11, which in a to its broad parallel plane is divided in half, one of which only the rear half in the viewer's sense is shown. For attachment to The extensions 9, 9 'are in the housing on the viewer side 4 of the NH fuse facing narrow side 12 in a the distance of the extensions 9, 9 'corresponding distance recesses 13, 13' are provided. These have a decreasing in the same direction Cross section on such that at one end the associated extension 9th can be inserted into the opening, then the housing 11 and the NH fuse 10 can move relative to each other in such a way that the Housing wall engages in the constrictions 8, 8 'and the beyond Part of the extensions 9, 9 'engages behind the housing wall, whereby the handle 100 of the NH fuse 10 is not in this position more can be lifted off. For fixing handle 100 and NH fuse 11 in this position are used in housing chambers 14, 14 ' Spring elements 15, 15 ', the displacement of the handle 100 and the NH fuse 11 from the mounting position of the handle 100 in the against Lift off secured position only with elastic bending of the locking areas 16, 16 'allow.

In the housing part 11a shown in the drawing, there are a plurality formed by axle pins 17, which are approximately perpendicular from the inner broad side extend. They are used particularly for pivoting storage of rocker arms 18 and 32, their design and function in the following should be described.

The rocker arm 18 has at its first end 20 a fork 21, the Tine the end faces of a circumferential collar provided on a display element 22 23 overlap. The arm 24 of the rocker arm supporting the fork 21 18 is connected to a bearing area 25 which has a central bore 26 comprises which is penetrated by one of the axle pins 17. At the storage area 25 is at an angle of on average about 90 ° to the arm 24 Circle segment extension 27 attached, the peripheral surface 28 a stop step 29 has. The latter is based on that shown in FIG. 1 Operating state on a stop surface 30 of an arm 31 further Rocker arm 32. The arm 31 angled by approximately 90 ° is in turn with a Bearing area 33 connected, the central bore 34 in turn from one of the axle pins 17 is penetrated. The storage area is offset by approximately 100 ° 33 another arm 35 of the rocker arm 32 is arranged around angled about 80 ° extends through an opening 36 in the housing 11 and the surface of the display element 6 of the indicator 5 at least ends almost touching. The rocker arm 32 is at one end the arm 31, at the other end to one of the axle pins 17 articulated spiral spring 37 held in this position and can only be overcome by overcoming the Spring force can be pivoted in the direction of rotation that the end of the arm 35 moves towards the opening 36, as would be the case, for example, when the display member 6 moved out of the fuse body 1.

The display element mentioned above, its circumferential band on the front is comprised of the prongs of the fork 21 consists essentially of a cylindrical pin, one end of which faces the operator Side of the housing 11 penetrated in a hole 39. It shows one slightly larger diameter than the pin 38 so that it from this is slidably mounted. In addition to the already mentioned scope 23, the pin has a second peripheral collar closer to the perforation 39 40 whose diameter is larger than that of the perforation and which thus forms a stop for the pin 38, which is the maximum displacement the pin out of the housing 11 limited.

A bearing projection 41 is provided within the housing 11 has a bearing opening 42 aligned with the perforation 39, through which one aligned by the peripheral collar 23 in the direction of the NH fuse 10 Part 43 of smaller diameter of the pin extends. How in particular 2 can be seen is between the bearing projection 41 and the circumferential collar 23 a coil compression spring 44 is provided which the pin 38 with an elastic biasing it towards the perforation 39 Force applied.

The rocker arm 18 has a continuation of the arm 24 from the storage area 25 extending further arm 45, which is the actuation of a microswitch 46 arranged adjacent in the housing 11 is used.

The latter can - if desired - serve to remotely report the operating state of the NH fuse 10 if it is suitably coupled to a corresponding device.
The operation of the embodiment of the handle shown in FIGS. 1 and 2 will now be explained.

In the operating state shown in FIG. 1, which represents the intact NH fuse is the display member 6 of the indicator 5 in his retracted position in the contours of the fuse body 1. By the spiral spring 17 is the rocker arm 32 maximally counterclockwise pivoted so that its stop surface 30 cooperates with the stop step 29. As a result, the rocker arm 18 is against clockwise movement blocked, causing the pin 38 against the force of the coil compression spring 44 of the fork 21 acting on the peripheral collar 23 in its retracted position Position in which it does not protrude from the housing becomes. The arm 45 of the rocker arm 18 is in a position in which he does not operate the microswitch 26.

As can be seen from Fig. 2, in which for clarity only individual, components essential to the functionality of the handle with the corresponding reference numerals, the rushing of the Display member 6 of the indicator 5 of the NH fuse 10 that the Rocker arm 32 is moved counterclockwise against the force of the coil spring 37 is so that the stop surface 30 releases the stop step 29. hereby can also rotate the rocker arm 18 clockwise, which for As a result, the pin 38 by the compressive force of the spiral compression spring 44 from the housing 11 is displaced until the peripheral collar 40 on the edge of the Hole 39 strikes and limits the release path. The rocker arm 18 was pivoted just so far in this process that his arm 45 now actuates the microswitch 46, which causes the trigger position shown in FIG. 2 of the handle can also be reported remotely.

1 and 2 is only one half of the housing for a better overview 11a of the housing 11 of the handle shown. It is understood that the handle has a second housing half, the counter bearing for the Axle pins 17 and is also designed such that the other components of the handle positioned after mounting the second handle part are. The second grip part is fixed on it provided locking surfaces provided by the handle part 11a shown Latching tongues 47 can be engaged in the attached state.

Another embodiment of a handle according to the invention, the now is to be designated with 200, is shown in FIGS. 3 and 4. It corresponds in its structure and mode of operation essentially that 1 and 2 explained, but is the use of a Adjusted NH fuse with front indicator so that - for repetitions to avoid - in the following only on the differences from the above described embodiment to be discussed.

As can be seen in FIG. 3, the identifier now designated 205 is of this type arranged that his not visible in the drawing link parallel for the longitudinal extension of the fuse link 202 of the NH fuse 200 runs. The indicator 205 is designed in a known manner such that the indicator link in a completely behind the outer contours of the fuse body 201 retracted position as long as the fuse is intact, but on one of the end faces - the left one emerges in FIGS. 3 and 4, as soon as the melting insert 202 has melted. To the To release pin 238 when triggering the indicator 5 is instead of the Rocker arm 32 a rocker arm 248 is provided by means of a storage area 249 pivotable in the manner described by an axle pin 217 is stored in the housing. It has two arms 250, 251, which enclose an angle of approximately 90 °. The rocker arm 248 in turn by a spiral spring 237, which is on the one hand outside of it Pivot axis provided eyelet 253, on the other hand on the housing 11a is articulated, pivoted elastically in one direction that one end of the arm 250 in any case approximately over the front surface of the indicator member of the indicator 205 is moved and the other end a stop step 229 of a rocker arm 218 engages behind with a stop surface 230. The Rocker arm 218 corresponds in terms of its structure and mode of operation the rocker arm 18 already described with reference to FIGS. 1 and 2 Embodiment, however, is arranged in mirror image. The reach behind the stop stage 229 prevents the pin 238 by the from the coil compression spring 244 spring force exerted in its disengaged position becomes.

As can be seen from FIG. 4, disengagement of the non-recognizable display element leads of the indicator 205 to pivot the rocker arm 248 clockwise, so that the stop step 229 from the stop surface 230 is released. The pin 238 can then by the force of the coil compression spring Move 244 to its disengaged position.

To activate the microswitch 246, which is in turn present, the Rocker arm 218 ', the rocker arm in its design and arrangement 18 corresponds exactly in the exemplary embodiment according to FIGS. 1 and 2, however because of the different arrangement of the indicator 6 with the indicator 5 cooperating rocker arm 248 only the actuation of the microswitch 246 serves.

3 and 4 are on the the operator's side of the handle further two projections 252, 252 'provided in their position and design correspond to those of the extensions 9, 9 'and the attachment of a downstream Handle or other components by the pin 238 should be operated, serve.

Another embodiment of a handle according to the invention, the now is to be designated with 300, is shown in Fig. 5. It is for a NH fuse provided with front indicator.

This handle 300 in turn comprises a hollow housing 311, which in a is divided into two halves parallel to its broad sides, by which only shows the rear half in the viewer's sense. The attachment of the hollow housing 311 on the NH fuse, not shown in FIG. 5 serve recesses 313, 313 'in their design and Function of the recesses 13, 13 'of the embodiment according to FIG. 1 correspond. To avoid repetition, please refer to the corresponding ones Explanations to Fig. 1 referenced.

In the hollow housing 311 is approximately in the middle of its longitudinal extent through holes 339 penetrating the two narrow sides, in which the display element 322 in turn, which is designed as a pin 338 rests in its longitudinal direction.

The pin 338 points approximately from the center to that of the NH fuse facing wall 311 'of the hollow housing 311 extending circumferential collar 340 on.

The end face 340 'of the circumferential collar pointing in the direction of the NH fuse 340 is in the retracted position of pin 338 in System with wall 311. On the opposite end 340 " of the circumferential collar 340 is supported by a leaf spring 350 which is in a perforation 351 from the end 338 'of the pin 338 facing the viewer is enforced. The leaf spring 350 is clamped between three Projections 352 near their end in the hollow housing shown on the left in FIG. 5 311 mounted such that its broad side is approximately parallel to the narrow side of the hollow case 311, i.e. runs approximately parallel to the wall 311 '.

The leaf spring 350 is made of an electrically conductive material and that 5 protruding on the left over the projections 352 is end 353 Sliding on a contact shoe designed suitable. That is beyond End 354 of the leaf spring 350 located on pin 338 bears on both sides of their narrow side extending contact projections 355, 356. In the in Fig. 5 shown, caused due to the bias of the leaf spring 350 withdrawn The position of the pin 338 is the contact projection 356 in contact with a contact protrusion 357, which is electrical from one conductive flat material formed contact bridge 361 is worn. Latter extends to the end of the hollow housing shown on the right in FIG. 5 311 and is again suitable for attaching a contact shoe designed.

The contact protrusion 357 is located on a further contact bridge 362, which is also made of electrically conductive material and at its end shown in Fig. 5 on the right for attaching a contact shoe is suitably designed, a further contact projection is provided. 5, the retracted position of the pin 338 is a contact gap to the facing contact projection 355 of the leaf spring 350 educated. Now the pin 338 by the indicator, not shown in Fig. 5 the NH fuse is pushed up, this will make the contact opened between the contact projections 356 and 357 and therefore the contact closed between the contact protrusions 355 and 358. By a suitable electrical connection of the leaf spring 353 and the contact bridges 361 and 362 is thus a remote message of the operating status of the NH fuse possible. It is understood that the contact bridges 361 and 362 made of resilient material - similar to the leaf spring 350 can be, since switching distance tolerances of the indicator the NH fuse can be compensated.

Another embodiment of a handle according to the invention, the now is to be designated with 400, is shown in Fig. 6. He is again Suitable for mounting on a NH fuse with front indicator. For this are in its hollow housing 411, which in turn is parallel to its broad sides Level is divided into two halves, only the one in the viewer sense rear half is shown, recesses 413, 413 'are provided, the Arrangement and operation of the recesses 13, 13 'of the embodiment correspond in Fig. 1 and reference is made to the description thereof.

Parallel to the wall 411 ′ facing the viewer, which is shown in FIG is a sliding piece displaceable in its longitudinal direction 414 provided. It is in the drawing by the sliding link 414 hidden inner walls, which run parallel to wall 411 ', guided and is supported on the right in Fig. 6 via a spiral spring formed compression spring 415 on an inner wall perpendicular to the wall 411 ' 416 of the hollow housing 411. The additional leadership of the Sliding piece 440 serves to extend through the interior of the compression spring 415 Pin 417, which penetrates a perforation 418 in the wall 416. The sliding piece carries one on the side facing the wall 411 ' color-coded marking 419 by a in the housing wall 411 'provided hole 420 in the disengaged, the release of the NH fuse indicating operating status is visible from the outside, however in 6, the untripped state of the NH fuse indicating position of the sliding piece 414 covered by the wall 411 ' becomes.

Furthermore, the sliding piece 414 bears on its side facing the wall 411 ' Side an actuation projection 421, which has a longitudinal perforation 422 in the Wall 411 'penetrated. 6, the on state the NH fuse characterizing position of the sliding piece 414 the actuation projection 421 is close to that shown on the right in FIG. 6 Edge of the longitudinal perforation 422. The sliding piece 414 is in this Position by a leg 423 of a rocker arm 424 against the pressure the compression spring 415 held in a provided in the sliding piece 414 Hole 425 engages. The rocker arm 424 is on one in the housing axle pin 426 extending parallel to the wall 411 '. The further legs 427 of the rocker arm 424 is angled such that its End protrudes through a hole 428 from the housing 411. To the Axle pin 426 is a spring 429 wound, one end 430 of which is on the housing 411 is attached and the other end 431 is on the leg 427th supports such that the spring 429 counterclockwise the rocker arm 424 tried to turn.

Now the indicator of the NH fuse snaps out and presses on it the end of the leg 427 protruding from the housing 411, so the rocker arm 424 against the force exerted by the spring 429 in Turned clockwise so that the leg 423 from the perforation 425 in the sliding piece 414 disengages and this by the force of the spring 415 6 is shifted to the left until the actuating projection 421 on the left wall of the perforation 422 comes to rest. In this position is - as already described - the marking 419 through the perforation 420 visible and indicates that the NH fuse has blown. After fixing the fault causing the fuse is triggered by manual 6 the actuating projection 421 to the right the sliding piece 414 in turn brought into its starting position in which it then against the force of the spring 415 by engaging the leg 423 is held in the perforation 425.

Shortly before the end shown on the left in FIG. 6, the sliding piece carries 414 on its side facing away from the wall 411 'a switching projection 431, one in the hollow case in the triggered state of the sliding piece 411 provided microswitch 432 actuated, so that again Remote operating status message via a suitable electrical circuit is possible.

LIST OF REFERENCE NUMBERS:

1

fuse body

2

fuse

3, 3 '

end up

4

page

5

Fuses, indicator

6

indicating member

7, 7 '

end plates

8, 8 '

Quereinschnürung

9, 9 '

projections

10

NH fuse

11

hollow housing

11a

housing part

12

narrow side

13, 13 '

recesses

14, 14 '

housing chambers

15, 15 '

spring elements

16, 16 '

Rest areas

17

axle pins

18

rocker arm

20

first end

21

fork

22

indicating member

23

circumferential collar

24

poor

25

storage area

26

central hole

27

Circular segment extension

28

peripheral surface

29

stop step

30

stop surface

31

poor

32

rocker arm

33

storage area

34

central hole

35

poor

36

opening

37

spiral spring

38

pen

39

perforation

40

circumferential collar

41

storage advantage

42

bearing opening

43

part

44

Coil spring

45

poor

46

microswitch

47

locking tongues

100

handle

200

handle

201

fuse body

202

fuse

205

Fuses, indicator

217

axle pin

218.218 '

rocker arm

229

stop step

230

stop surface

237

spiral spring

238

pen

244

Coil spring

246

microswitch

248

rocker arm

249

storage area

250

poor

251

poor

252.252 '

projections

253

eyelet

300

handle

311

hollow housing

311 '

wall

313.313 '

recesses

338

pen

338 '

The End

339

through-hole

340

circumferential collar

340 ', 340'

ends

350

leaf spring

351

perforation

352

projections

353

The End

354

The End

356

contact projection

358

contact projection

361

contact areas

362

contact areas

411

hollow housing

413.413 '

recesses

414

sliding piece

415

compression spring

416

inner wall

417

pen

418

perforation

419

mark

420

perforation

421

operating projection

422

Längslochung

423

leg

424

rocker arm

425

perforation

426

axle pin

427

leg

428

perforation

429

feather

430

The End

431

switching projection

Claims (14)

Handle (100, 200) for attachment to an electrical fuse arrangement equipped with an indicator function indicating the operating status, in particular a low-voltage high-performance fuse with a fuse link in an insulating housing, in which the respective operating status is indicated by a characteristic position of a mechanical display device
characterized in that the handle (100, 200) comprises display means which indicate the operating state of the security arrangement indicated by the indicator function on at least one of the outer surfaces of the handle (100, 200). Handle according to claim 1, characterized in that the display means have a mechanical handle display device. Handle according to claim 1 or 2 for a fuse arrangement, in which the respective operating state is indicated by a characteristic position of a mechanical display device, characterized in that the mechanical handle display device of the display means is designed such that it with the mechanical display direction of the fuse arrangement on this attached handle (100, 200, 300, 400) is in operative connection. Handle according to one of claims 1 to 3, characterized in that the handle display device has a first position remaining at least substantially within the outer contour of the handle (100, 200) and one out of the outer contour of the handle (100, 200, 300) protruding second position displaceably arranged display member (pin 38, 238, 338) comprises. Handle according to one of claims 1 to 3, characterized in that the handle display device comprises a sliding piece (414) which can be displaced approximately parallel to the wall facing the operating personnel and which bears a marking (419) through a perforation (420) in the the position of the sliding piece (414) that characterizes an operating state is visible, whereas the position of the sliding piece (414) that characterizes the other operating state is covered by a wall (411 ') of the housing (411) of the handle (400). Handle according to claim 4 or 5, characterized in that the indicator member (38, 238, 414) is arranged so that it can be displaced into the second position under the action of the spring force. Handle according to claim 4, characterized in that the indicator member (338) is arranged such that it can be displaced into the first position under the action of the spring force. Handle according to Claim 5, characterized in that latching means which can be triggered by the display device of the securing arrangement are provided, by means of which the display member (38, 238) can be fixed in its first position against the spring force. Handle according to claim 8, characterized in that the latching means comprise at least one rocker arm (18, 218; 32, 232; 248; 424) which is arranged so as to be pivotable about a pivot axis approximately perpendicular to the axis of displacement of the display member (38, 238, 414) and which is connected to the Display element (38, 238, 414) interacts positively in the direction of displacement and can be fixed in a position that defines the first position of the display element (38, 238, 414) in the event of a non-triggered indicator function of the fuse arrangement. Handle according to claim 9, characterized in that the fixing of the rocker arm (18, 218, 424) in the position defining the first position of the display member (38, 238, 414) serves to cooperate with the indicator (5, 205) of the securing arrangement, latching means, which engage in the first position of the display element (38, 238, 414) a latching surface (29, 229) of the rocker arm when the indicator function is not triggered, but release it when the indicator function is triggered. Handle according to claim 10, characterized in that the latching means (29, 229) comprise a rocker arm (32; 248, 424) which is arranged to be pivotable about a tilt axis which runs approximately parallel to the pivot axis. Handle according to one of claims 1 to 11, characterized in that means are provided for remotely reporting the position of the display element (38, 238). Handle according to claim 12, characterized in that the means for remotely reporting the position of the display element (38, 238) comprise a microswitch (46, 246, 432) actuated by the display element. Handle according to one of claims 1 to 13, characterized in that the handle comprises a housing (11) which can be joined together from at least two parts and has an internal cavity, in its cavity at least the means for indicating the operating state of the securing arrangement, the latching means and the Includes means for remote reporting.

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