EP1719730A1 - Safety brake for elevators - Google Patents

Abstract

The safety brake has a conveyor which has a quick release mechanism fastened (4) to a brake shoe (5), which is parallely arranged to a moving arranged rail. The quick release mechanism is movable from a release position into a brake position, in which the brake shoe is pressed against the rail. A damping media (11) is provided which absorbs the brake position when in a release position.

Description

The invention relates to a brake catching device for conveying means, in particular elevator cars with a supporting part to be fastened to the conveyor with at least one brake bakk which is intended to engage a rail arranged fixedly parallel to the conveying path and with a release part which can be moved relative to the supporting part, that of a release position in a braking position is movable, in which the brake shoe is pressed against the rail.

The EP562931A1 describes a safety brake device of this type. On one side of the rail, a wedge is arranged, which leaves a conical space towards the rail, in which there is a roller-shaped release part. To trigger a braking, the triggering part is moved against the wedge and pushed in the sequence by frictional force further into the conical space. As a result, a brake shoe arranged on the opposite side of the rail is pressed against the rail. According to the title of the patent application, this safety brake device has integrated damping means. These damping means consist of springs, which are arranged on the one hand between the wedge and the cabin and on the other hand between the brake shoe and the cabin. By this arrangement, in principle, the cabin is resiliently supported on the brake catcher device and the shock occurring during gripping of the safety brake device is transmitted to the cabin cushioned. However, this brake device is not able to absorb shocks that act on the brake device itself when triggered. In other words, no influence on the increase of the braking force is exerted by the mentioned springs on the brake-catching device itself. A functioning according to the same principle safety brake device is also off AT297260 known.

Based on this prior art, the present invention seeks to propose a brake device of the type described above, in which after a release, the increase of the braking force is attenuated.

This object is achieved according to the invention in that damping means are provided which damp the movement of the trigger member on at least part of its path from the release position to the braking position.

This solution according to the invention has the advantage that with few and simply constructed parts a brake catch device can be realized, which takes up little space, is easy to install and to handle, with very little adjustment and maintenance works extremely reliable and builds up the brake progressively after the release , As a result of the few and simply constructed parts wear is low in operation and the reliability of the safety brake device is high even on a worn rail.

An embodiment of the invention provides that the damping means are arranged such that their damping effect on the triggering part only begins after the triggering part has carried out a part of its path from the release position to the braking position. This measure leads to a high level of safety in the triggering of braking, because the trigger part is not already braked by the damping means at the beginning of its movement.

According to a particular embodiment, the damping means comprise a piston-cylinder unit. Such per se known dampers are particularly suitable for use in a brake safety device according to the invention, because their damping effect is speed-dependent and the weaker the slower the speed of movement of the piston. As a result, on the one hand the braking effect at the beginning of the braking process, when the conveyor has too high a speed damped, because the trigger part moves due to the friction on the rail quickly relative to the support member. On the other hand, towards the end of the braking process, when the triggering part moves only slowly relative to the supporting part, the further movement of the triggering part is not hindered by the piston-cylinder unit until it is completely stopped.

According to three further embodiments, at least one passage opening for a fluid present in the cylinder in the piston or in the cylinder jacket or in the cylinder bottom of the piston-cylinder unit is arranged. Depending on the operating position of the piston-cylinder unit can be reliably prevented that possibly clogged in the cylinder fluid present, settling particles clog the passage opening.

According to a further embodiment, the triggering part is designed as a further brake shoe. For a simple design, reliable safety brake device is obtained.

Another embodiment provides that the triggering part is guided by a wedge-shaped part along an inclined surface to the conveying direction. This embodiment is simple and inexpensive to perform. It is also particularly cost if, according to a further embodiment, the release part is slidably guided on the wedge-shaped part. Alternatively, according to another embodiment, the triggering part may be guided on the wedge-shaped part with the interposition of rolling elements. Such a brake device has due to the low friction between the trigger part and the inclined surface on a favorable response.

A further embodiment provides that in the triggering part a rotational body is mounted, which is intended to roll between the rail and the inclined surface. Preferably, the rotary body has a toothing on its circumference. This embodiment also works very reliably with, for example, a lubricant-contaminated rail.

As an alternative to the mentioned guide on a wedge-shaped part, according to a further embodiment, the triggering part can be articulated on at least one lever. This structurally somewhat more complex variant offers advantages with regard to the adjustability of the maximum braking force.

Finally, according to another embodiment, the release part can be designed as an eccentric. This embodiment comes with few moving parts.

In principle, the triggering part is concerned with the fact that it travels from the release position to the braking position a path which is as substantially as possible greater than the distance that the at least one brake shoe executes at right angles to the rail. On at least part of this path, this movement of the triggering part counteracts the damping means, depending on the speed with which the triggering part moves relative to the damping means. The possible path of the trigger part is preferably dimensioned in practice so that it is greater than it would actually be necessary for braking a fully loaded conveyor. A failure of the safety brake device by sliding on in Result of a worn rail or brake shoe is thereby excluded.

Embodiments of the invention are explained below with reference to the accompanying drawings.

Fig. 1

eine Prinzipskizze einer Bremsfangvorrichtung nach dem Stand der Technik;

Fig. 2

eine Prinzipskizze zur Veranschaulichung des Wirkungsprinzips der erfindungsgemässen Bremsfangvorrichtung;

Fig. 3 bis Fig. 5

Ausführungsbeispiele der Dämpfungsmittel;

Fig. 6 bis Fig. 8

ein erstes Ausführungsbeispiel der Bremsfangvorrichtung in drei verschiedenen Betriebslagen;

Fig. 9

ein zweites Ausführungsbeispiel der Bremsfangvorrichtung;

Fig. 10

ein drittes Ausführungsbeispiel der Bremsfangvorrichtung;

Fig. 11

ein viertes Ausführungsbeispiel der Bremsfangvorrichtung;

Fig. 12 bis Fig. 14

ein fünftes Ausführungsbeispiel der Bremsfangvorrichtung in drei verschiedenen Betriebslagen;

Fig. 15 bis Fig. 17

ein sechstes Ausführungsbeispiel der Bremsfangvorrichtung in drei verschiedenen Betriebslagen;

Fig. 18 bis Fig. 20

ein siebentes Ausführungsbeispiel der Bremsfangvorrichtung in drei verschiedenen Betriebslagen;

Fig. 21

eine Seitenansicht eines achten Ausführungsbeispiels der Bremsfangvorrichtung;

Fig. 22

einen Grundriss des achten Ausführungsbeispiels der Bremsfangvorrichtung;

Fig. 23 bis Fig. 25

drei verschiedene Betriebslagen des achten Ausführungsbeispiels.

Show it:

Fig. 1

a schematic diagram of a safety brake device according to the prior art;

Fig. 2

a schematic diagram to illustrate the principle of action of the inventive brake device;

FIG. 3 to FIG. 5

Embodiments of the damping means;

Fig. 6 to Fig. 8

a first embodiment of the safety brake device in three different operating positions;

Fig. 9

a second embodiment of the safety brake device;

Fig. 10

a third embodiment of the safety brake device;

Fig. 11

A fourth embodiment of the safety brake device;

FIGS. 12 to 14

A fifth embodiment of the safety brake device in three different operating positions;

FIGS. 15 to 17

a sixth embodiment of the safety brake device in three different operating positions;

FIGS. 18 to 20

a seventh embodiment of the safety brake device in three different operating positions;

Fig. 21

a side view of an eighth embodiment of the safety brake device;

Fig. 22

a plan view of the eighth embodiment of the safety brake device;

FIGS. 23 to 25

three different operating positions of the eighth embodiment.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be analogously applied to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to a new position analogously to the new situation.

The embodiments show possible Ausflihrungsvarianten the brake safety device, which should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching of technical action by representational Invention in the skill of those skilled in this technical field. So are all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiment variant, includes the scope of protection.

For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the safety brake device, these or their components have been shown partly in an unmeshold manner and / or enlarged and / or reduced in size.

Fig. 1 shows schematically the principle of operation of a safety brake device according to the prior art, as for example by the patent application EP562931A1 is represented. On the underside of an elevator car 2, a safety brake device 1 is arranged, wherein this receiving support member is not shown in this figure. A brake shoe 5 and a wedge 6 are guided between lateral guides 3 such that they can not move sideways during braking. Between the brake shoe 5 and the wedge 6 there is a fixed rail 7. In the space between the rail 7 and the wedge 6, a roller-shaped release part 8 is received. If, during a downward travel of the elevator car 2, a set maximum speed is exceeded, the trigger part 8 is pushed in the direction of the arrow 9 into the space between the rail 7 and the wedge 6 via a corresponding release device, not shown, wherein it rolls on the rail 7 and is trapped in the room, so that the brake shoe 5 is pressed against the rail. The braking force is thus at the brake catcher immediately and undamped. Springs 10 allow a relative movement between the elevator car 2 on the one hand and the brake shoe 5 and the wedge 6 on the other hand, so that the full braking force applied immediately to the safety brake device 1 is fed to the elevator car 2 in a sprung manner.

Fig. 2 shows schematically the principle of operation of a safety brake device according to the invention. In this case, the same parts are denoted by the same reference numerals as in Fig. 1. In contrast to the brake catch device according to Fig. 1 here the brake shoe 5 and the wedge 6 are not connected via springs, but directly to the elevator car 2. In practice, this connection is made via a support member, which is not shown here but in the drawing. The trigger part 8 is also shown here as a cylinder, but does not necessarily have to be designed as will be explained later. The trigger part 8 is shown in its release position, which can be seen from the fact that it has a horizontal distance from the rail 7. According to the invention damping means are provided which damp the movement of the trigger member 8 on at least part of its path from the release position to the braking position. These damping means are formed in this example by a piston-cylinder unit 11, which is supported on the elevator car 2 and the movement of the trigger member 8 brakes and thereby damps. As can be seen in the figure, the effect of the piston-cylinder unit 11 on the trigger member 8 only after it has already traveled a distance 12 towards the braking position. This measure ensures an immediate and secure gripping of the release part 8 on the rail.

FIGS. 3 to 5 show exemplary embodiments of the piston-cylinder unit 11, which are preferably used as damping means in the inventive safety brake device place. In all three embodiments, a piston 13 is movably arranged with a piston rod 14 in a cylinder 15. Furthermore, in all three embodiments, the cylinder is filled with a fluid, for example with a liquid, preferably hydraulic oil. In the embodiment according to FIG. 3, openings 18 are arranged in the piston 13, which allow the passage of the fluid from one side of the piston 13 to the other when the piston 13 is moved by a force acting on the piston rod 14. Since these openings have a relatively small cross section, the piston 13 can move only slowly, whereby the desired damping effect occurs. When using the piston-cylinder unit 11 according to FIG. 3 in the illustrated position, it is disadvantageous that particles, for example precipitates from the fluid, settle on the upper side of the piston 13, block the openings 18 and thereby impair the function of the piston. Cylinder unit 11 could interfere. This must be avoided at all costs, because brake safety devices should work reliably even if they were inactive for years. The piston-cylinder unit 11 of Fig. 3 is therefore preferably installed in a position in which the piston rod 14 is directed upward. Examples of such brake safety devices are shown in FIGS. 9 and 21 to 25.

The embodiment of the piston-cylinder unit 11 of Fig. 4 is designed so that it can be installed in any position. The openings 18 are arranged distributed here in the wall of the cylinder 15 over its circumference and the cylinder wall is surrounded by a housing 16. In operation, the fluid displaced by the piston 13 flows through the space between the cylinder 15 and the housing 16 from one side of the piston to the other.

The embodiment of the piston-cylinder unit 11 according to FIG. 5 is preferably intended for use in the illustrated position. The openings 18 are here in an intermediate bottom 17 which divides the interior of the cylinder 15. Of course, in this embodiment, the space located on the side of the piston rod 14 is not filled with liquid.

It is obvious that the damping effect exerted by the piston-cylinder unit depends on many parameters. These parameters include the diameter of the piston and cylinder, the diameter, the number and distribution of the orifices 18, and the viscosity of the fluid used. If desired, with the embodiment According to Fig. 4 by an appropriate choice of the number, the arrangement and the diameter of the openings 18 even a path-dependent damping effect, for example progressively increasing, are obtained.

FIGS. 6 to 8 show a first exemplary embodiment of the safety brake device, reference being initially made to FIG. 6, which shows an operating position of the safety brake device in which the triggering part 8 is in its release position. On a on a conveyor, such as an elevator car to be fastened support member 4, a brake shoe 5 is fixed. The brake shoe 5 opposite a eberifalls fixed to the support member 4 connected wedge 6 is arranged. The release part is formed in this example as a further brake shoe 40, which is arranged opposite to the brake shoe 5 and movable relative to the support member 4 by means of two slidable in a guide slot 20 pins 19. The distance 22 between the brake shoes is in this operating position so that the rail can move freely between the brake shoes. Upon release of the brake-catching device, the release member formed as a further brake shoe 40 is moved upwards by means not shown from its release position, such that it is moved along the surface of the wedge 6 towards the rail (not shown) and after a short stroke this is present. Assuming that the elevator moves downward at this moment, the further brake shoe 40 is moved further into the space between the rail and the wedge 6 by the frictional force acting between it and the rail. This first part of the movement of the brake shoe 40 is initially unaffected by the damping means formed as a piston-cylinder unit 11, until a transmission part 21 arranged on the brake shoe 40 still has a distance 12 from the piston rod 14. In the operating position according to FIG. 7, the brake shoe 40 is displaced so far upwards and the distance 23 between the brake shoes is reduced in such a way that the rail is clamped between the brake shoes and the braking effect commences. At the same time the transmission stone is! 21 on the piston rod 14, so that the further movement of the brake shoe 40 is opposed by the piston-cylinder unit, a resistance. In this way, the braking force is not increased abruptly, but subdued. The formation of the damping means as a piston-cylinder unit causes the brake shoe 40 opposite force is greater, the faster the brake shoe 40 moves. If, however, the brake shoe 40 moves only slowly in the vertical direction, sets the piston-cylinder unit of this movement virtually no force. As a result, the inventive brake catch device is practically self-regulating and requires only a few adjustments. If instead of a piston-cylinder unit, a spring used as a damping element, the force exerted on the brake shoe 40 force would steadily increase from the release position to the braking position and possibly prevent that formed as a brake shoe 40 release member 8 moves completely into its braking position. FIG. 8 shows the brake catch device in an operating position in which the release part designed as brake shoe 40 is in its braking position. The distance 24 between the brake shoes has again slightly reduced compared to the distance 23, so that now the rail is firmly clamped between the brake shoes. The way that the pins 19 can travel in the guide slot 20 is dimensioned so that the distance 24 guarantees a secure clamping of the rail, even if the latter has become thinner due to wear. The piston 13 has moved in the cylinder 15 relative to the operating position of FIG. 7 upwards and has damped in this way the movement of the trigger member.

It is also possible to provide each one designed as a brake shoe release part and a cooperating piston-cylinder unit on both sides of the rail, for example, a mirror image. This eliminates the fixed brake shoe. 5

Fig. 9 shows a second embodiment of the safety brake device, in which, in contrast to the embodiment according to Figures 6 to 8, the piston-cylinder unit 11 is arranged below. In order to achieve a delayed onset of damping in this embodiment, the transmission part 21 is fork-shaped and the piston rod 14 has a head 25th

Fig. 10 shows a third embodiment of the safety brake device, in which between the wedge 6 and the trigger part 8 rollers 26 are arranged, which have the task of reducing the resistance in the movement of the brake shoe 40 formed as the trigger member.

11 shows a fourth exemplary embodiment of the safety brake device, in which a toothed roller 27 is arranged between the wedge 6 and the triggering part 8. This sprocket 27 engages the beginning of the movement of the trained as a brake shoe 40 release part of the release position in the braking position on the rail, the teeth prevent sliding along the rail. At the same time the sprocket 27 also engages the inclined surface of the wedge 6, whereby a force component is formed, which pulls the brake shoe 40 further into the space between rail and inclined surface. As a result, the braking operation is performed with high safety even if dirt or even lubricant adheres to the rail.

FIGS. 9 to 11 show the brake catch device 1 with the release part designed as a brake shoe 40 in an intermediate position between the release position and the brake position.

FIGS. 12 to 14 show a fifth exemplary embodiment of the safety brake device, wherein FIG. 12 shows the release position, FIG. 13 shows an intermediate position and FIG. 14 shows the braking position of the release part. The triggering part here has the shape of an eccentric 45 which is pivotally mounted about an axis 42 on the support member 4 and engages with its circumference on a further brake shoe 46, which is arranged opposite the brake shoe 5 and relative to the support member 4 is horizontally movable. By a pivoting of the eccentric 45 in the clockwise direction, the further brake shoe 46 is moved in the figures to the right in the direction of the (not shown) rail. On its pivoting from the release position shown in FIG. 12 to the braking position shown in FIG. 14, the eccentric 45 abuts the piston rod 14 of the piston-cylinder unit 11, which also acts as a damping means in this example, so that the further pivoting movement of the eccentric 45 is steamed. This safety brake device is triggered by the trigger member designed as an eccentric 45 is pivoted so far by means not shown until arranged in the further brake shoe 46, about an axis 44 rotatable toothed roller 27 contacts the rail. As a result, the toothed roller 27 rolls on the rail and transmits its rotational movement via an intermediate 41 to the eccentric 45, which is thereby further urged in the direction of its braking position. The idler 41 is eccentrically mounted in this example on the same axis 42 as the eccentric 45 and rotatably connected to the latter. To limit the pivoting of the eccentric 45, a slot 43 is arranged in this, the ends of which abut against the axis 44.

As these embodiments of FIGS 6 to 14 show the erfmdungsgemäße brake device can be performed entirely without springs.

Figures 15 to 17 show a sixth embodiment of the brake catch device, Fig. 15 in the release position, Fig. 16 in an intermediate position and Fig. 17 in the braking position of the release part. The trigger part is guided here on a pivotable about an axis 29 lever 28 from the release position to the braking position. A rotatably connected to the lever 28 lever arm 30 cooperates with the piston-cylinder unit, which is arranged horizontally on the support member 4 in this case. Trained as a small brake shoe 47 release part is pivotally connected to the lever 28 and additionally guided by in a curved guide slot 31 movable pins 19 so that it does not tilt. In addition, in this example, the lever 28 telescopically toward the axis 29 against the force of a spring assembly 32 shortened.

A derived from this embodiment, not shown in the drawing embodiment contains, instead of the lever 28 and the brake shoe 47 hinged thereto an eccentric mounted on the axis 29, which engages with its peripheral surface directly on the rail. The eccentricity is designed such that the eccentric is urged by the frictional force against the rail.

FIGS. 18 to 20 show a similar exemplary embodiment as in FIGS. 15 to 17, wherein FIG. 18 shows the release position, FIG. 19 shows an intermediate position and FIG. 20 shows the braking position of the release part likewise designed as a further brake shoe 47. In place of the moving in a guide slot 31, connected to the brake shoe 47 pins 19, the brake shoe 47 is guided by two parallel lever 28 in this example.

Finally, Figures 21 to 25 show a further embodiment that the teaching according to the invention can also be applied to a safety brake device which is effective both when driving downhill and when driving up a conveyor. On the support member 4, in turn, a wedge 6 is arranged, which is movable in this case against the force of two spring assemblies 35 horizontally by a small amount. The triggering part is, as in the embodiments of Figures 6 to 11 formed as a further brake shoe 40, slidably disposed on the wedge 6 and guided by 19 in a guide slot 20 movable pins. The acting as a damping means piston-cylinder unit 11th is arranged in this example behind the support member 4, as the plan shown in FIG. 21 clearly shows. For power transmission between the brake shoe 40 and the piston-cylinder unit 11, a transmission part 21 is provided, whose end is fork-shaped and the piston rod 14 of the piston-cylinder unit has a head 25 on which the forked end of the transmission part 21 acts. The brake shoe 40 opposite a pivotable about an axis 33 angle lever 34 is arranged, wherein the pivoting movement is limited by two stops 39. The free ends of the angle lever are each equipped with a brake pad 36, 37, wherein the brake pad 37 against the force of a spring assembly 38 by a small amount against the axis 33 is displaceable. Figures 21 and 22 show this embodiment of the safety brake device in the neutral position in which it exerts no braking action on the rail.

Fig. 23 shows the brake catch device when braking while driving upwards. Trained as a brake shoe 40 release member remains in its release position and the braking is triggered by a corresponding, not shown device on the angle lever 34, such that it rests with the brake pad 36 on the rail and thereby pulls the brake shoe 40 against the rail. In this braking, the braking force is undamped and the achieved braking force is determined by the spring assemblies 35 and 38.

Fig. 24 shows the safety brake device during braking while driving down at the beginning of the braking process. The braking is triggered by the above-mentioned device on the angle lever 34, such that it rests with the brake pad 37 on the rail and thereby pulls the brake shoe 40 designed as a trigger member against the rail. As a result of the friction, the brake shoe 40 is now moved upward in the figure and thereby urged by the wedge 6 against the rail. This movement is opposed by the piston-cylinder unit 11, a resistance and thus the braking force is attenuated.

Fig. 25 shows the brake catch device when braking while driving down at maximum braking force, that is, with the trigger part in its braking position. Trained as a brake shoe 40 release part has reached its braking position and it is the maximum braking force exerted on the rail. Since the trigger part no longer moves, the force exerted by the piston-cylinder unit on the trigger part force is equal to zero.

REFERENCE NUMBERS

1

Safety gear

2

car

3

guide

4

supporting part

5

brake shoe

6

wedge

7

rail

8th

trigger part

9

arrow

10

feather

11

Piston-cylinder unit

12

distance

13

piston

14

piston rod

15

cylinder

16

casing

17

false floor

18

openings

19

pen

20

guide slot

21

transmission part

22

distance

23

distance

24

distance

25

head

26

roll

27

sprocket

28

lever

29

axis

30

lever

31

guide slot

32

spring assembly

33

axis

34

bell crank

35

spring assembly

36

brake lining

37

brake lining

38

spring assembly

39

attack

40

further brake shoe

41

between the edge

42

axis

43

slot

44

axis

45

eccentric

46

further brake shoe

47

small brake shoe

Claims (14)

Brake catching device (1) for conveying means, in particular elevator cars (2) with a supporting part (4) to be fastened to the conveyor with at least one brake shoe (5) which is intended to engage a rail (7) arranged fixedly parallel to the conveying path, and with a triggering part (8; 40; 45; 47) movable relative to the supporting part (4), which is movable from a release position into a braking position in which the brake shoe (5) is pressed against the rail (7), characterized in that damping means (11) which damp the movement of the trigger member (8; 40; 45; 47) on at least part of its path from the release position to the braking position. Safety brake device according to claim 1, characterized in that the damping means (11) are arranged such that their damping effect on the trigger part (8; 40; 45; 47) only after the trigger part (8; 40; 45; 47) a part has made his way from the release position to the braking position. Safety brake device according to one of the preceding claims, characterized in that the damping means comprise a piston-cylinder unit (11). Safety brake device according to one of the preceding claims, characterized in that in the piston (13) of the piston-cylinder unit (11) at least one passage opening (18) for a cylinder (15) existing fluid is arranged. Safety brake device according to one of claims 1 to 3, characterized in that in the cylinder jacket (15) of the piston-cylinder unit (11) at least one passage opening (18) for a cylinder (15) existing fluid is arranged. Safety brake device according to one of claims 1 to 3, characterized in that in the cylinder bottom (17) of the piston-cylinder unit (11) at least one passage opening (18) for a cylinder (15) existing fluid is arranged. Safety brake device according to one of the preceding claims, characterized in that the release part is designed as a further brake shoe (40, 47). Safety brake device according to one of the preceding claims, characterized in that the triggering part (8; 40) is guided by a wedge-shaped part (6) along a surface inclined to the conveying direction. Safety brake device according to claim 8, characterized in that the release part (8; 40) is slidably guided on the wedge-shaped part (6). Safety brake device according to claim 8, characterized in that the triggering part (8; 40) is guided on the wedge-shaped part (6) with the interposition of rolling bodies (26). Safety brake device according to claim 8, characterized in that in the triggering part (8; 40) a rotational body (27) is mounted, which is intended to roll between the rail (7) and the inclined surface. Safety brake device according to claim 11, characterized in that the rotational body (27) has a toothing on its circumference. Safety brake device according to one of claims 1 to 7, characterized in that the release part (47) is articulated on at least one lever (28). Safety brake device according to one of claims 1 to 7, characterized in that the release part is designed as an eccentric (45).

Images