EP1210720B1 - Manual operating device equipped with a turning handle and provided for electrical switchgears - Google Patents

Abstract

The invention relates to a manual operating device (3) equipped with a turning handle and provided for electrical switchgears. Said turning handle (5) indicates the respective switching position and is actively engaged with the drive axle (22) of a rotary drive (2). The base plate (4) mounted on said rotary drive (2) has a circularly surrounding connecting element (41). In order to ensure precise handle positions in different assembly positions of the switchgear, the base plate (4) can be assembled in various positions located around the drive axle (22). In addition, the connecting element (41) comprises an inwardly projecting first edge segment (42). The turning handle (5) is actively connected to a drive plate (6) that can be placed inside the connecting element (41). A circular second edge segment (62) is configured on the drive plate (6) in relation to the pulled back edge area (63). In the OFF position, both edge segments (42, 62) complement one another without overlapping in order to form a complete circular ring. The second edge segment (62) of the first edge segment (42) overlaps or engages behind in each position that differs from the OFF position.

Description

Technical field

The invention relates to a manual control device with a rotary handle for electrical Switchgear, especially circuit breakers, the twist grip the indicates the respective switching position of the switching device, the rotary handle with the drive axis of a rotary drive of the switching device is in operative connection and a base plate mounted on the rotary drive has a circular circumferential one Has web.

State of the art

Manual actuators are known that work directly or as on a Control cabinet door to be fastened door coupling handle with the drive axis a rotary actuator, e.g. according to document DE-C-43 22 214, a switching device are connectable. Such a manual control device according to the publication DE-C-43 12 428 shows the respective switching position of the switching device indicating turning handle, which is connected to the drive axle via a pivotable driver and a coupling part is in operative connection with a circumferential collar comprises a web of a base plate and by means of a gate valve in both the ON and OFF positions of the Switching device can be locked and locked, with decoupling between Driver and coupling part an automatic shutdown of the switching device due to an error condition, e.g. due to overload or short circuit, is not hindered.

To ensure congruent switching positions of the rotary handle with different Installation positions of the switchgear (in general twist grip in Always set to 12 o'clock) is a special one according to document DE-U-94 05 568 Coupling piece required. This coupling piece can be loosened a holding plate from a driver piece the end piece of a receiving piece removed from the recess of the driver piece and, if necessary, in a position opposite the previous one inserted and offset by 90 °, 180 ° or 270 ° reattach the retaining plate to the driver piece in this position being held. The disadvantage is that this solution only works in conjunction can be used with a door clutch handle, but not with a direct one Installation of a manual control device on a rotary drive or in the case of several switching devices driven in parallel or mutually lockable.

EP-A-0 774 766 discloses a generic manual operating device, in which the rotary handle the respective switching position of the switching device indicates the rotary handle with the drive axis of a rotary drive of the Switching device is in operative connection and one mounted on the rotary drive Base plate has a circular web. The base plate is by means of fasteners in different to the drive axis staggered positions mountable. However, it is because of a coded Passage opening for those provided with a radially projecting locking pin Drive axis and because of a guide groove for one in the OFF position of the twist grip releasable cover slide no corresponding angular displacement the OFF position of the rotary handle is possible because both the passage opening as well as the guide groove irreversible in the front of the Switchgear surrounding housing are formed.

Presentation of the invention

The invention is therefore based on the object, congruent handle positions a versatile manual control device to ensure different installation positions of the switchgear.

Starting from a manual control device of the type mentioned According to the invention, the task is characterized by the characterizing features of the independent claim solved, while the dependent claims advantageous developments of the invention can be found.

With different, usually vertical and by 90 ° each around the horizontally running drive axis offset the switchgear's installation positions the base plate can always be congruent to the vertical Position on the rotary actuator of the switchgear. A On the one hand, the drive plate is rigidly connected to the drive axis of the rotary drive and on the other hand operatively connected to the twist grip, especially under Admission of a certain game elastically coupled. The twist grip sits either directly on the base plate and thus on the rotary drive of the Switchgear or on a cabinet door, in which case a over its cross-section correspondingly coded extension axis between Base plate and twist grip is to be arranged. The provided on the base plate first edge segment and the second provided on the drive plate Marginal segments complement each other to an almost full circle only in that mutual Position in which the drive plate is fully on the base plate can be put on and at the same time opposite the OFF position of the rotary handle the base plate forms. Only in this mutual OFF position the drive plate also pull off the base plate. In everyone else mutual positions exist both by blocking the second edge segment due to the first edge segment no possibility of the drive plate to place on the base plate, as well as by reaching behind the first Edge segment through the second edge segment no way the drive plate subtract from the base plate. The manual control device according to the invention can also be used in conjunction with several operated in parallel or mutually interlocking switchgear can be used.

The base plate is expediently essentially square or to be circular and with switch position symbols - at least for OFF and ON - to be provided. With four mounting positions offset by 90 ° the base plate, it is advantageous that the one edge segment about a quarter circle and the other edge segment in addition about one Includes three-quarter circle.

For many applications, it is advantageous to use the manual control device to be provided with means for locking in the OFF position. To do this contains the rotary handle has a locking slide and one to be actuated by it Locking pin, which is in the locked OFF position through a first locking opening extends in the stationary first edge segment and thus this position up to locks. To lock the manual control device in the case of impermissible conditions, especially with welded contacts of the To prevent the switching device effectively, the locking pin with one part is sufficient through the first barrier opening and through one opposite the second Second locking opening formed edge segment recessed edge area. The two locking openings are open to each other and include the locking pin on both sides in the locked OFF position.

To lock the manual control device in the ON position is in first edge segment a third locking opening for engaging the locking pin intended. This can be done by breaking out a corresponding section from the first edge segment or by removing a blocking one Plug insert are formed.

An advantageous development of the invention further consists in that the interaction of the web of the base plate with an overlying one Collar of the twist grip protection against splash water is formed. Further corresponding recesses can be provided in the web and the collar be in the OFF position of the manual control device cover and only in this way the way for a suitable tool to the fasteners with which the twist grip on the drive axle or the extension axis is attached, and thus disassembly the manual control device outside the OFF position of the To prevent switching device.

Finally, a useful further development is that during assembly of the switching device with rotary drive within a control cabinet or one other enveloping housing on the control cabinet door or the like another base plate in the same position as the inner base plate and the rotary handle is mounted on it. This is with the same appearance the uniqueness and legibility of the handle positions from the outside guaranteed.

Brief description of the drawings

Fig. 1a,b:

in Verbindung mit einem Schaltgerät in zwei Einbaupositionen;

Fig. 2a,b:

in teilweise auseinander gezogener Darstellung in zwei verschiedenen perspektivischen Ansichten;

Fig. 3:

in perspektivischer auseinander gezogene Darstellung für direkten Anbau an ein Schaltgerät;

Fig. 4:

in perspektivischer teilweise auseinander gezogener Darstellung in Verbindung mit einer Schaltschranktür;

Fig. 5:

im Längsschnitt;

Fig. 6:

im Querschnitt A-A aus Fig. 5.

Further details and advantages of the invention result from the following exemplary embodiment explained with reference to figures. Show a manual control device according to the invention

1a, b:

in connection with a switchgear in two installation positions;

2a, b:

in a partially exploded view in two different perspective views;

Fig. 3:

in a perspective exploded view for direct attachment to a switching device;

Fig. 4:

in a partially exploded perspective in connection with a control cabinet door;

Fig. 5:

in longitudinal section;

Fig. 6:

in cross section AA from FIG. 5.

Best way to carry out the invention

In Fig. 1a and 1b, a switching device 1 is in the form of a circuit breaker a mechanical rotary drive 2 mounted on the front, on which a manual operating device 3 is mounted, in two offset from each other by 90 ° Installation positions shown. The manual control device 3 contains one on the rotary actuator 2 fastened base plate 4 and one placed over it Twist grip 5. In both installation positions of switch device 1 and at the same Position of the rotary drive 2 relative to the switching device 1 is the Manual control device 3 in the same position, so that when switched off Switchgear 1 the base plate 4 with its switch position symbol "0" for OFF and turn handle 5 clearly towards nine o'clock. With Which inventive means that is achieved is described below.

2a and 2b of the rotary drive 2 is the drive housing 21 alone shown on which the base plate 4 with respect to the drive axis 22 of the Rotary drive 2 screwed into four positions, each offset by 90 ° can be. A drive plate 6 is located within the rotary handle 5 mounted on the one hand with a receiving opening 61 in a form-fitting manner over the Drive axis 22 engages and on the other hand with friction and play the twist grip 5 is operatively connected. Also extends through the receiving opening 61 a screw connection between drive plate 6 and turning handle 5 (see also Fig. 5). The base plate 4 has a circular web 41 the inside a first edge segment 42 in the scope of a tight quarter circle is trained. On the drive plate 6 there is a short supply Three-quarter circle a second edge segment 62 with respect to the outside formed the rest of the recessed edge region 63.

3, the rotary handle 5 consists of a base body 51 and a locking slide 52 mounted therein, which, when actuated against a compression spring 53 acts on a locking pin 54 in the direction of rotary drive 2 and in the OFF position through a first locking opening 43 in the first edge segment 42 of the Lock the base plate 4 into a locking bore 23 of the drive housing 21 grabs. In this position, the manual control device 3 by hooking one or more padlocks into it in the Base body 51 provided bracket openings 55 are completed. The drive housing 21 has the four mounting positions of the Base plate 4 several identical locking holes and mounting holes on. The drive plate 6 is by means of a cube-shaped driver 64, in the inside of which the receiving opening 61 is formed, via a U-shaped one Leaf spring 7 connected as an elastic link to the rotary handle 5. Only in the shown OFF position between the rotary handle 5 and the drive plate 6 on the one hand and base plate 4 on the other hand, the drive plate 6 can be put together insert or remove from the base plate 4 with the rotary handle 5. In the OFF position, the first edge segment 42 and the second edge segment 62, leaving slight tolerance gaps to a full circle without this overlapping each other Edge segments 42 and 62 comes. When inserting or removing the first edge segment 42 of the base plate 4 unhindered by the reset Edge region 63 of the drive plate 6. Even slightly Positions deviating from the OFF position overlap between the two edge segments 42 and 62 so that these overlaps an insertion of the drive plate 4 within the circumferential web 41 prevent or partially overlapping the second edge area 62 first edge area 42 prevents the drive plate 6 from being removed. The Connection of the drive plate 6 to the drive shaft 22 is via an im Driver 64 fixed and in a circumferential groove 24 of the drive shaft 22 engaging detent spring 65 (see also Fig. 6). When put on the rotary handle 5 surrounds the web 41 with a circumferential collar 56 the base plate 4, so that in this way protection against dirt and Splashing water is formed. The ON position with the switch position symbol assigned to it "I" for EIN points towards twelve o'clock.

4 shows the case for a manual control device 3 'when the switching device 1 is arranged with the rotary drive 2 within a control cabinet is, of which the control cabinet door 8 is indicated in fragments. The base plate 4 is fastened on the rotary drive 2 in the required position. A drive plate is in its peripheral web 41 in the OFF position 6 'can be used, for which in turn a protruding second edge segment 62 'in the scope of a tight three-quarter circle and one otherwise set back Have edge region 63 ', which in turn is described above Interact with the first edge segment 42 of the web 41. The drive plate 6 'has a rectangular driver 64' on, from behind the drive axle 22 and from the front an extension axle 9 engages. The extension axis screwed to the drive plate 6 ' 9 is encoded with respect to its cross section, which results in an assembly the manual control device 3 'in the unique position of its components is guaranteed. On the outside of the control cabinet door 8 is a known one Door coupling 81 and a further base plate 4 'fastened thereon, which are designed and aligned in the same way as the inner base plate 4 and on which the rotary handle 3 is mounted. This is again independent a clear orientation from the installation position of the switching device 1 and reading the manual control device 3 'with the OFF position in the direction guaranteed at nine o'clock and with the ON position in the direction of twelve o'clock. The door clutch 81 mainly provides a separable connection between the Extension axis 9 and the manual control device 3 'ago.

5 and 6, the manual control device 3 is again in longitudinal section or shown in cross section. In the base body 51 of the rotary handle 5 is the locking slide 52, the compression spring 53 and the locking pin 54 are mounted. The With its circumferential collar 56, the base body 51 encompasses the circumferential one Web 41 of the base plate 4. The drive plate 6 is over its driver 64 and screwed to the base body 51 by means of a screw 66. In the The OFF position shown is opposite that in the first edge segment 42 of the base plate 4 open first locking opening 43 a in the recessed edge region 63 of the drive plate 6, second blocking opening 67. Through these two blocking openings 43 and 67 is sufficient if the main contacts of the switchgear are open properly Lock the manual control device 3 each half of the cylindrical Locking pin 54. To lock the manual control device 3 in the ON position a third blocking opening 44 is provided in the edge segment 42, which can be broken out if necessary and which is in the ON position of the second Locking opening 67 faces to let the locking pin 54 pass through. Around the rotary handle 5 with the connected drive plate 6 from the rotary drive To solve 2, the detent spring 65 must be disengaged from the groove 24 of the drive shaft 22 are brought (see also Fig. 3). For this is both in Collar 56 a first passage opening 57 as well as in the first edge segment 42 a second passage opening 45 and in the recessed edge area 63 a third passage opening 68 is provided. Through the OFF position the passage openings 57, 45, 68 and the blocking openings 43, 67 one behind the other brought lying. If the manual control device 3 in the unlocked OFF position is an access for a pointed tool through the openings 57, 45, 43, 67, 68 for actuating the detent spring 56. This access is through the locking pin in the locked OFF position 54 and in all others, only slightly deviating from the OFF position Positions are blocked by the web 41. Moreover there is access to screw fasteners for the base plate 4 within the web 41. For security reasons, this is only in the unlocked OFF position the loosening of the rotary handle 5 and then the base plate 4 can be detached from the rotary drive 2.

The present invention is not limited to the above-described embodiments limited, but also includes all within the meaning of the invention equivalent embodiments. For example, the invention Develop in such a way that the broken-out third blocking opening 44 can be closed again by an appropriate plug-in insert or that the third blocking opening 44 in the first edge segment 42 by removal and reinserting a plug insert can be closed. Furthermore, the invention can be used circular or square with rounded corners Modify base plates. In addition, the invention is not on edge segments 42 and 62 limited to a fourth or three-quarter circle, but should always complement each other to form a full circle.

LIST OF REFERENCE NUMBERS

1

switchgear

2

rotary drive

21

drive housing

22

drive axle

23

lock hole

24

groove

3

Hand-operated device

4; 4 '

baseplate

41

web

42

first edge segment

43

first barrier opening

44

third barrier opening

45

second passage opening

5

rotary handle

51

body

52

blocking slide

53

compression spring

54

locking pin

55

Ironing opening

56

collar

57

first passage opening

6; 6 '

drive plate

61

receiving opening

62; 62 '

second edge segment

63; 63 '

recessed edge area

64; 64 '

takeaway

65

detent spring

66

screw

67

second barrier opening

68

third passage opening

7

leaf spring

8th

cabinet door

81

door coupling

9

extension shaft

Claims (12)

1. Manual operating device with a turning handle for electrical switching devices, in which

   the turning handle (5) indicates the respective switching position of the switching device (1),

   the turning handle (5) is in operative connection with the drive spindle (22) of a rotary drive (2) of the switching device (1),

   a base plate (4), mounted on the rotary drive (2), has a web (41) running peripherally around it in a circular form and

   the base plate (4) can be mounted by means of fastening means in various positions, offset around the drive spindle (22),

   characterized in that

   an inwardly protruding, annular first edge segment (42) is formed onto the web (41),

   the turning handle (5) is operatively connected to a drive plate (6; 6') which can be fitted within the web (41) and can be brought into engagement with the drive spindle (22),

   an annular second edge segment (62; 62') is formed on the drive plate (6; 6') with respect to the otherwise set-back edge region (63; 63'),

   in the OFF position of the switching device (1), the two edge segments (42, 62 or 62') fit together, not congruently, to form almost a full annulus, the set-back edge region (63; 63') forming a passage for the first edge segment (42), and

   in every position deviating from the OFF position, the second edge segment (62; 62') is at least partly congruent with or engages behind the first edge segment (42).
2. Manual operating device according to Claim 1, characterized in that the base plate (4) is of a substantially square form and is provided with switching position symbols.
3. Manual operating device according to Claim 1, characterized in that the base plate is of a substantially circular form and is provided with switching position symbols.
4. Manual operating device according to one of the preceding claims, characterized in that one of the edge segments (42; 62 or 62') makes up approximately one quarter and the other of the edge segments (62 or 62'; 42) makes up approximately three quarters of a full annulus.
5. Manual operating device according to one of the preceding claims, characterized in that the turning handle (5) is provided with a blocking slide (52) and a blocking pin (54), which can be operated by the latter and, in the blocked OFF position, reaches through a first blocking opening (43) in the first edge segment (42).
6. Manual operating device according to the preceding claim, characterized in that the blocking pin (54) respectively reaches with substantially half its extent into the openly formed first blocking opening (43) and into an openly formed second blocking opening (67) in the set-back edge region (63).
7. Manual operating device according to one of the two preceding claims, characterized in that in the first edge segment (42) there is provided a third blocking opening (44) for the blocking pin (54) reaching through in the locked ON position.
8. Manual operating device according to the preceding claim, characterized in that the third blocking opening (44) can be broken out.
9. Manual operating device according to one of the two preceding claims, characterized in that the third blocking opening (44) can be closed by a plug-in insert.
10. Manual operating device according to one of the preceding claims, characterized in that the drive plate (6) and the peripheral web (41) of the base plate (4; 4') are enclosed by a peripheral collar (56) of the turning handle (5).
11. Manual operating device according to the preceding claim, characterized in that means for releasing the turning handle (5) from the possibly extended drive spindle (22) are accessible via corresponding through-openings (45; 57) in the web (41) and in the collar (56) exclusively in the OFF position.
12. Manual operating device according to one of the preceding claims, characterized in that the turning handle (5) is mounted by means of a further base plate (4') on a switch cabinet door (8), the further base plate (4') and the base plate (4) mounted inside the switch cabinet having congruent positions and a coded extension spindle (9) being arranged between the drive plate (6') and the turning handle (5).

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