DE2109975A1 - Braking device for an open-end spinning unit - Google Patents

Description

Pctentcsnv / aUe
DIPL-IMC. F. ί! 25ΣΝΚΕ
DRd-ING. H. H. Wl? ȣ * M

TaL 071Ϊ29Ϊ13 »

., υbr ¹ .: latent- und Nutzsmucterliilfcanmolduui; -D 4013

Anci .; V / illielra Stahlecker GmbH 7341 Reichenbach im I ¹ L

Braking device for a sp irmaggr egat

You invention relates to a braking device for an open ^ nd spinning unit, whose spinning turbine is in a vacuum standing housing, which is closed with an open housing part with transmission means is connected to the brake, which opens as a release or transfer braking force to the brake.

The housing part, which can be opened by folding down or pivoting or pulling off or the like, advantageously usually also contains the devices for feeding and dissolving the sliver. This known design has the advantage that a largely automatic mode of operation is achieved by the open the turbine housing the spinning turbine is braked, without the need for an additional handle. This advantage is noticeable compared to other known types, where the! turbine has a foldable or foldable ^ A knockable cover is provided, which is only opened for some of the turbine, xiei these types is oine ^ remüeinrichtung provided, which is independent of the position of the closure cover can be actuated. is disadvantageous However, that for the opening of the cover and for cleaning

209838/0963

BAO ORIGINAL

of the turbine only one hand can be used as the other is required to operate the brake. These disadvantages can only be avoided if additional locks are provided which, however, again require an increased structural effort and greater care in operation. In addition, access to the spinning turbine is significantly more favorable in the case of the design with a hinged housing part.

When operating the spinning unit, especially when removing it of yarn breaks it is necessary that the spinning turbine is brought to a standstill. The paser ring present in it must be removed. Braking the spin turbine however, opening the spin box is somewhat time consuming.

The invention is based on the task of operating a to simplify the spinning unit equipped with a braking device of the type mentioned at the outset. The invention consists "^ in that one is independent of the opening of the housing part operable actuator is provided for the same brake. The invention is based on the knowledge from that the fiber ring inside the turbine after the braking of the spinning turbine, d. H. when no more centrifugal forces are present, is sucked off by the prevailing negative pressure in the turbine housing. This can help troubleshoot There is no need to open the spin box for thread breaks, but only a slightly higher structural build-up is required. In addition, · all existing advantages maintained.

It is structurally advantageous if the independent actuating device is connected to at least a part of the transmission means leading to the housing part which can be opened. This has the advantage that the structural effort is low, if largely the same transmission means for both actuations Find use.

- BATHROOM OFMGINAL

209838/0963

In an advantageous embodiment of the invention, an independent Braking device provided, which has an actuation lever Contains, -der of a driver of the housing part to be revealed is adjustable in the opening direction. In this embodiment, that of an existing, of the housing part independent braking device goes out, basically only one additional component is required, so that the Production effort can be kept relatively low.

In another embodiment of the invention it is provided that the transmission means leading to the housing part which can be opened contain an adjusting member which is adjustable both by an operating lever and by the housing part. This embodiment is based on the transmission medium connected to the housing part.

In a further embodiment of the invention, an adjusting member of the reveal engages the common transmission means -Housing part and an independently actuatable adjusting member. This configuration has the advantage of that the direction of actuation of the independent adjusting member can be selected largely independently of the direction or type of opening movement of the housing part that can be opened.

Included in an advantageous embodiment of the invention the transmission means a tensioning element to which the independent actuating device and / or the openable housing part attack. It is particularly advantageous if the tensioning element is one that can be tensioned or released to actuate the brake flexible tape is used, which is preferably a metal reinforcement having. This embodiment allows great design freedom, since a flexible clamping element can be used can be diverted.

,., Another embodiment of the invention is the disclosed Housing part with a on a brake arm or the like, eiuwir-

"- ■■ '- - 4 _

209838/0963

BAD OR) GlMAi.

Kenden pusher provided, which is movably mounted in the housing part and is adjustable via the independent actuating device. Again, there are only a few additional components necessary.

In a further embodiment of the invention, a brake arm or the like acting on a brake arm or the like is located in the stationary housing Movable arranged pusher, which is supported on a spring attached to the open housing part and the can be adjusted against the action of the spring by means of an independent actuating device. Here, too, will be largely the same transmission means for the two brake actuators th used.

In a further embodiment of the invention, a preferably designed as an angle lever is in the stationary housing Mounted pusher, which is held in its starting position by a stop of the open housing part is in which he released the brake against the action of a "spring holds.

In another embodiment, a two-armed lever is mounted in the stationary housing part, one arm of which

■ acts on a brake arm or the like and its other arm, which is designed as an actuating lever, is loaded with a spring arranged in the open housing part, which can be disengaged when the housing part is opened. In this embodiment, too, it is actually only intended that basically only one actuating device ■ is present, which consists of the actuating lever which either can be adjusted directly or indirectly via the housing by removing a resilient stop holding it.

Further features and advantages of the invention emerge from the description of the embodiments shown in the drawing in connection with the subclaims.

BATH ORIGINAL

209838/0963

Pig. 1 shows a partially sectioned side view of a first embodiment of the invention,

Pig. 2 'is a view in the direction of the rope II of FIG Pig. I,

3 shows a partially sectioned view of a further embodiment,

Fig. 4 is a partially sectioned view of another embodiment,

Fig. 5 is a partially sectioned view of an embodiment similar to Fig. 4,

6 is a partially sectioned side view of an ₍ embodiment similar to FIGS. 4 and 5,

i ■

7 is a partially sectioned view of a further embodiment,

FIG. 8 is a partially sectioned view of an embodiment similar to FIG. 7,

Fig. 9 is a partially sectioned view of another Embodiment,

Fig. 10 is a partially sectioned view of another Embodiment,

11 is a partially sectioned view of a ' further embodiment,

FIG. 12 shows a partially sectioned view of a further embodiment, ■.

209838/0963

/ Fig. 13 is a plan view of an embodiment of the invention;

14 is a side view of the embodiment according to FIG Fig. 13,

15 shows a partially sectioned view of a further embodiment,

16 and 17 are a plan view of an end view of an embodiment of the invention and

Fig. 18 is a partially sectioned view of a final embodiment of the invention.

In Fig. 1 and 2, an embodiment of the invention is shown, in which an openable housing part 1 is provided which, in a manner not shown in detail, has facilities for the " lead and dissolve contains a sliver, the fibers of which are fed to a spinning turbine 2 shown in broken lines which rotates in a stationary housing 3 in which a negative pressure is generated. The sp inn turbine 2 Is driven by a belt 4 which is used jointly for several spinning units and which attaches to the turbine axle from above is pressed with a pressure roller 6. The turbine axis is mounted in the wedge gap between two pairs of support rollers 7. the The pressure roller 6, which is pressed against the belt 4 from top to bottom, is mounted in a pivot lever 8 which, via its pivot axis 9 is also extended. The end of the pivot lever 8, which is extended beyond the pivot axis 9, forms an approach 10, which rests from above on a brake spring 11, which at its free end directly above the turbine axis 5 a brake lining 12 carries. The brake spring 11 is secured to a bolt 13 which is located in the rear wall of the turbine housing 3

- 7 - BAD OfHGIKAt

^ 209838/0963

is arranged. In addition, it lies down with a leg 14 from above on the approach 10 of the pivot lever 8. The The pivot lever 8 is between the pivot axis 9 and the pressure roller 10 supported by a spring 15 which presses the pressure roller 6 upwards.

At the free end of the pivot lever 8 engages as a drawstring clamping element 16 formed with an i.Ietallver reinforcement, which penetrates a longitudinal bank 17 in a bore on which the housing 3 is arranged. The clamping element 16 is in a hook-shaped extension 18 of an actuating lever 19 is suspended, which & iCh against a pivot axis 20 designed as a tube of the reveal housing part 1 is supported. The operating lever 19 is provided with an adjustable stop 21 with which it rests against the rear wall 22 of the housing part 1, which can be folded down about its horizontal pivot axis 20. On the back wall 22 a bolt 23 is attached, in which a spring 24 is hooked, the other end of the lever to the stop 21 attacks. The operating lever 19 and the tension band 16 transmit the force of the spring 24 to the pivot lever 8, whereby the pressure roller 6 is held in its working position and the brake 12 in its released position. In this embodiment the invention, the stop 21 in the operating position is free from the rear wall 22, from which it, however is taken when pivoting the housing part 1.

In the illustrated embodiment, the spinning turbine 2 can be stopped by two types of actuation using the same transmission means and the same brake. If the operating lever 19 is pivoted counterclockwise against the action of the spring 24, this will be Clamping element 16 relaxed and loosened. Then the Spring 15 turns the pivot lever 8 clockwise so that the pressure roller 6 is pivoted away from the drive belt 4. At the same time, the brake lining 12 lies on the turbine

2 0 9838/0963

BATH ORIGINAL

axis 5, since the approach 10 of the pivot arm 8 from above the leaf spring 11 carrying the brake lining 12 presses on. So that the turbine axis 5 of the brake lining 12 in the 'Wedge gap of the pairs of support rollers 7 secured. This kind of Braking of the spinning turbine 2 is carried out, for example, in the event of a thread breakage, when the turbine 2 from there i'aserkranz is to be removed. To the case 3 is a vacuum line in a manner not shown in detail connected, through which the fiber wreath is sucked off when the "centrifugal forces" by stopping the Sp inn turbine 2 have been canceled.

When the spinning turbine 2 of coarser, for example, to blockages leading contaminants are to be freed, the turbine housing 3 must by pivoting the housing part 1 are opened so that the spinning turbine 2 is accessible. The spinning turbine 2 is braked here, without an additional handle having to be made. The rear wall 22 of the housing part 1 takes the actuating lever 19 when opening via the stop 21 and pivoted it counterclockwise. The tensioning element 16 also relaxed, so that the pressure roller β is raised by the force of the spring 15 and the brake lining 12 is on the main axis 5 is launched.

In the embodiment shown, opening the housing part 1 or actuating the actuating lever 19 only transmits a triggering force to the braking device, while the braking force is determined exclusively by the ΐ eder 15. This has the advantage that the braking of the spinning turbine 2 is independent of the type of actuation of the brake lever 19, so that the same conditions, which can be selected in the design of the spinning unit, are always present for the braking process.

BATHROOM ORIGINAL - 9-

209838/0963

In all embodiments according to that shown in FIGS Principle in which the transmission means between

. see the reveal housing part -1 and the braking device an independently operated operating lever is installed,

■ it will always be appropriate to use this operating lever 19 in the To store the area of the pivot axis 20 of the housing part 1, so that both when opening the housing part 1 and when independent operation of the operating lever, the same movements are transmitted to the clamping element 16. Warehousing of the operating lever, but does not have to be on the pivot axis take place, it is also possible to provide a separate storage for the lever at a short distance from this pivot axis.

Fig. 3 shows an embodiment of the invention that corresponds in principle to the embodiment according to FIGS. 1 ″ and 2, since also

9, here an independently operable actuating lever 25 is provided which forms part of the transmission means through which the opening of a pivot axis 20 that can be folded down about a horizontal pivot axis Housing part 1 is transferred to a braking device. In this embodiment, the drive belt 4 from below against the turbine axis 5 of the spinning turbine 2. pressed while the brake pad 12 is a brake of

. at the top of the turbine axis 5. The pressure roller 6 and the brake having the brake lining 12 are on a ge

• common pivot lever 26 mounted on the housing 3, the upper

Arms 27 running halfway and below the turbine axis 5 and 28, the arm 27 carrying the brake lining 12 being designed as a leaf spring.

At an approximately parallel to the arms 27 and 28 Arm 29 of the pivot lever 26 engages a tension band 30 which is suspended in a hook-like extension 31 of the actuating lever 25 is. The actuating lever 25 is mounted in the pivot axis 20 of the housing part 1. Is counterclockwise its path is limited by a driver 32 of the housing part 1.

- 10 -

209838/0963

BAD ORlGiNAt

Within the housing part 1, a spring 33 is attached which holds the operating lever 25 in its initial position. The drawstring 30 rests on a pulley 34 of the housing 3 so that it is vertically in the area of the pivot arm 26. ler direction.

In this embodiment, too, two independent actuations of the same brake can be used the same transmission medium executable. To the spinning turbine To bring 2 to a standstill, either the actuating lever 25 can be pivoted counterclockwise by itself , or the housing part 1 can be swiveled away, which then in the same way the actuating lever 25 actuated via the driver 32. When the operating lever 25 is pivoted counterclockwise, the tensioning element 30 cocked and the pivot lever 26 from the operating position into the braking position against the force of a not Swiveled energy storage device, which puts it in the operating position holds. In the braking position, the brake lining 12 rests from above against a brake collar 35 of the turbine

i
axis 5. The braking depends on the type of operation of the actuating lever 25, but the braking force that can be applied is determined by the arm 27 of the pivot lever 26, which is designed as a leaf spring. The same braking process is obtained when the housing part 1 is pivoted away, since the actuating lever 25, which is entrained when the housing part 1 is opened, executes the same movement. In this embodiment, too, it is useful if the independent actuating lever 25 is mounted in the pivot axis 20 of the housing part 1, since the same movements are then transmitted to the brake when the actuating lever 25 is actuated alone and when the housing part 1 is pivoted away . However, it can also be provided that the independent actuating lever is supported at a distance from the pivot axis 20. Under certain circumstances it will then be advantageous

- 11 BAD OfflGtNAL

209838/0963

within the transmission means, for example in connection to attach a compensating spring to the tensioning element. In In most cases, no separate arm will be provided on the pivot lever 26 for connecting the clamping element 30, since it will usually be possible without difficulty to attach the tensioning element to one of the existing arms 27 or 28, the rigid arm 28 is particularly suitable for this.

In the embodiment of Fig., 4 is already to Fig.l The drive described for the turbine axle 5 is provided, which is formed by a leaf spring 11 and brake linings 12 Includes brake. The turbine housing 3 can be opened by folding down a housing part that is pivotably mounted about a horizontal axis 20 1 can be opened. The pivoting movement of the housing part 1 is transferred to the drive in such a way that the brake pads 12 automatically counteract when swiveling away

c the turbine axis 5 are pressed while the pressure roller 6 is lifted. The transmission means used for this purpose consist of the pivot lever 8, one as a tension band trained clamping element 36, an actuating lever 37 and a tension spring 38 which is held on a bolt 39, the is attached to the rear wall 22 of the housing part 1. The clamping element 36 is mounted on the axis 20, a Roller 40 having a relatively large diameter! and hooked into the actuating lever 37. On the actuating lever 37, which is mounted on the rear wall 22, is the spring 38, which is suspended in the bolt 39, is also fastened. The spring 38 applies the force with which the Pressure roller 6 against the drive belt 4 in the operating position

■ development is pressed, in which the brake pads 12 are spaced are located above the turbine axis 5. The braking position, in which the brake linings 12 rest on the turbine axis 5 and in which the pressure roller 6 is lifted off the drive belt 4 is, is achieved with the help of an energy storage device, not shown, including, for example, according to the

- 12 -

209838/0963

1, a spring 15 can be provided which engages the pivot lever 8. The energy store brings the pivot lever 8 into the braking position when the tensioning element 36 is relaxed and the force of the spring 38 is thus switched off. Relaxing the tensioning element 36 and thus braking is possible both by pivoting the independent actuating lever 37 and by opening the housing part 1. When the operating lever 37 is moved against the Uhrzeigersirin down _f so the tension member 36 is loosened so far that the force storage means, not shown, the pivot lever 8 placed in the braking position. When the housing part 1 is folded down, the actuating lever 37 does not change its position, since its clockwise movement is limited by a stop 41. Nevertheless, the tensioning element guided over the roller 40 with a relatively large diameter is loosened to such an extent that the pivot lever 8 takes the braking position. With the opening of the housing part 1, an automatic braking of the spinning turbine is achieved.

The diameter of the roller 40 determines how far the tensioning element 36 yields when the housing part 1 is folded down can. In order to adapt the size of the change caused by the operating lever 37 to this yielding, the distance is of the articulation point 42 to the bearing 43 of the actuating lever 37 is selected accordingly.

The drive of the embodiment according to! Pig. 5, which is only schematically • is shown table, corresponds essentially to the drive. the embodiment of FIGS. 1 and 2. love the against Drive belt 4 from above pressing pressure roller 6 are in .not shown in detail from above onto the turbine axis 5 acting brakes are provided, which can be actuated via the pivot lever S at 8. The pivot lever 8 is in the illustrated Operating position on a stop 44 of the housing 3. In this operating position he is against the effect

- 13 209838/0963

ein.not shown energy storage device held that the Swivel lever 8 loaded in the direction of the braking position. At 'the pivot lever 8 engages a designed as a tension band Tensioning element 45 is wound onto a disk 46 and is attached to it with a screw 47. The disc 46 is mounted on a shaft 48 and is clockwise loaded with a torsion spring 49. The · torsion spring 49 is inserted with one end into an axial bore of the disk 46, while its other end in a groove of the shaft 48 engages. The torsion spring 49 holds the pivot lever 8 via the tensioning element 45 in FIG Operating position.

An actuating lever 50 is inserted into the disk 46 in the radial direction. To the pivot lever 8 in the braking position to transfer, the clamping element 45 must be loosened, which is done by rotating the disk 46 by means of the operating lever 50 occurs counterclockwise.

The open housing part 1 is provided with a driver 51 which is adjustably attached to it. When the housing part 1, which is pivotable about a horizontal pivot axis 20 located below, is pivoted away, this driver 51 rests against the actuating lever 50 and rotates it counterclockwise. Thus, by pivoting the housing part 1 provided with a handle 52, the spinning turbine is automatically braked without the operating lever 50 having to be actuated by hand. The actuation lever 50 can be attached inside or outside the housing part 1.

The pivotable housing part 1 is provided with a bolt 53 on which one.Totpunktfeder 54 engages, the other The end is hooked into a fixed bolt 55. This dead center secures the pivoted position of the housing

- 14 209838/0963

partly 1 and causes the closing pressure in the position shown.

The spinning turbine rotating in a housing 3 under negative pressure in the embodiment according to FIG. 6 is again provided with the drive already described for the embodiment according to FIG. The working position of the pressure roller is also secured here by a tensioning element 56, designed as a tension band, which engages the pivot lever 8 and pulls it downwards. The tensioning element 56 is deflected via a deflection roller lying approximately vertically below the articulation point of the pivot lever 8 and guided into the interior of the pivotable housing part 1. The housing part 1 is pivotable about a horizontal axis 20 lying below and is provided with a shoulder 58 on which the deflecting roller 57 is mounted. The end of the tensioning element 56, which is guided into the interior of the housing part 1, is suspended in an actuating lever 59 designed as an angle lever. In the starting position, one arm of the actuating lever 59 runs approximately parallel to the rear wall 22 of the housing part 1, while the other arm projects approximately perpendicularly therefrom. Of about verikal standing arm of the actuating lever 59 is provided as a stop serving emer ^m adjusting screw 60, the rear wall 22 bears against a reinforcement 61st The approximately horizontally extending arm of the actuating lever is loaded counterclockwise with a spring 62 which is supported on an extension 63 which is attached to the rear wall 22. In this embodiment too, the lower 62 controls the force with which the pressure roller 6 is pressed against the drive belt 4, while its immersion depth can be adjusted by the adjusting screw 60.

A braking of the turbine axis 5 and thus the sp inn turbine is achieved in that the clamping element 56 is relaxed so that the pivot lever 8 is in the, already described

- 15 -

209838/0963

level braking position. Relaxing the Spanneleraerites 56 takes place on the one hand by pivoting the actuating lever 59 counterclockwise and against the action of the spring 62. However, the relaxation is also carried out by swiveling it away of the housing part 1, as this is the. Approach "58 with the Urnlenkrölle 57 is raised. Since the operating lever 59 cannot move due to the adjusting screw 60, is also then the pivot lever 8 is raised from its energy storage device, not shown, into the braking position.

In the embodiment according to FIG. 7, the axis 5 is again that of the embodiment according to ^ Fig. 1 described and only shown schematically drive provided with the brake, which has a pivot lever 3, of a tensioning element 64 in its working position is held. The clamping element 64 is mounted on a pivot axis 20 of the housing part 1 Roller 40 deflected to the interior of the housing part 1. There it is suspended in an actuating lever 65, which is designed as a pull rod and adjustable in its axial direction is. The tie rod is guided in a fixed in the housing part 1 sleeve 66, the lower end with a Disc 67 is provided on which a spring 68 is supported, the other end of which is attached to a bushing 69 of the pull rod ab-r supports. The pull rod is thereby urged away from the roller 40 by the spring 68, so that the pivot lever j8 of the Clamping element 64 is pulled down. Between the foldable Geliäuseteil 1 and a fixed Llaschiiiiteil a dead center spring 54 is provided, the action of which has already been described in the embodiment of FIG is.

<To brake the spinning turbine, the clamping element 64 must be loosened what can happen on the one hand that the actuating lever 65 designed as a pull rod from the outside

BAD OfWGlMAL - 16 -

209838/0963

is pressed into the housing part 1. The pivot lever 8 is then transferred into its braking position via the energy storage device (not shown). A loosening of the clamping element 64 is also achieved in that the foldable housing part 1 is folded down. In this case, a stop piece 70 screwed onto the actuating lever 65, which is designed as a pull rod, rests against the bush 66 , in which the clamping element 64 is suspended. Came under university stands! it may be useful if 64 guide parts are provided for the lateral guidance of the loosened clamping element. As shown in FIG. 7, a split holder 71 can be attached to the rear wall 22 of the hinged housing part 1 for this purpose.

The embodiment of FIG. 8 is also provided with the drive already described in FIG. 1, in which a Swivel lever 8 is held by an energy storage device in its operating position or its braking position. To the Swivel lever 8 engages a savings learning pulling it down t 72, which via a roller 40 mounted in the pivot axis 20 of the foldable housing part 1 inwards into the Housing part 1 is deflected and attached to its rear wall 22. Inside the foldable housing part 1 is an actuating lever 73 is provided which is mounted in the pivot axis 20 and which has a deflection roller 74 at its free end which carries the clamping element between the roller 40 and its attachment point on the rear wall 22 in an approximately deflects right direction to their connecting line. The pulley 74 of the actuating lever 73 is via a spring 75 pressed against the clamping element 72. The spring 75 engages on the actuating lever 73 approximately perpendicular to its longitudinal axis and is supported in a recess 76 in the rear wall 22 of the foldable housing part 1. The * tension of the spring, 75, through whose force the pivot lever 8 in the operating

BAD OFHGINAL - 17 -

209838/0963

position "is held by a regulating device 77 adjustable. The operating lever 73 is with one of the hinged housing part 1 penetrating approach 78 provided, the outer end 79 as a handle or as a support surface is designed for one knee of the operator. A respect distance is established by one of the actuation levers 73 associated stop 80 secured.

In this embodiment too, the clamping element 72 loosened to brake the spinning turbine 2, so that the pivot lever 8 moves upwards and the not shown Brake against the üDurbinenaehse 5 presses. Sin loosening the clamping element 72 is possible in that of The operator's Enie of the actuating lever 73 is pressed inwards and thereby about the pivot axis 20 in a clockwise direction is twisted. The deflection roller 74, which moves inwards, loosens the tensioning element 72. A loosening (of the clamping element 72 is also achieved in that the foldable housing part 1 is folded downwards will. The actuating lever 73 then rests against its stop 80.

The Ausfüiarungsformen according to Figures 4, 6, 7 and 8 have in so far as a common principle, as for a common Transmission means, namely a tensioning element, two different adjusting members are provided, which are optional "can be actuated and each locks the tensioning element cause. These are on the one hand the operating levers and on the other hand the foldable housing parts, in which the clamping elements are guided so that loosening with the Albklappen is achieved. In these embodiments, the use offers Advantages of flexible tension straps, since they can be deflected in almost any way without affecting the constructive The effort becomes greater. There is the possibility that the direction of actuation of the actuating lever does not match the

- 18 ■ 209838/0963

• The pivoting direction of the hinged housing is partly identical have to be. Since the tension straps secure the working position of the drive, it is useful if they are are reinforced, so that the depth of the pressure roller 6 is precisely set and maintained can.

Of course, what has been explained above is also possible Principle to be used if the brake from the two actuating devices is not only subjected to a release force, but the braking force must be transmitted directly, since all Ausfühnmgsformen with analogous redesign without further give the possibility to operate the independent operating lever or by folding down the housing part to exert traction and such a savings element to tighten instead of loosening.

Prop. Figure 9 shows an embodiment of the invention in which a pressure roller 6 from below against a drive belt 4 is pressed with a not shown Eeder, whereby the necessary pressure of the Sreibriemens 4 against one Whorl 81 of the üJiarbinenachse 5 is generated. To the spimiturbine 2 stop, the pressure roller 6 is pivoted downwards. About drive belt 4 follows and loses his Contact with the whorl 81. The pressure roller 6 is in one mounted two-armed pivot lever 82, which has an arm extending above the turbine axis 5, which on his free end lying above the turbine axle 5 a brake lining 83 has “When the pivot lever 82 is moved downwards, the brake lining 83 lies down on the whorl from above 81 'on. On the pivot lever 82 there is a downward movement through the longitudinal bench 1? fastened through extending tensioning element 84, for which a drawstring is preferably used will. The lower end of the tensioning element 84 is attached to an abutment 85 without tension. This abutment 85

- 19 -

- ■ 209838/0963

can be used in a manner not shown as a longitudinal rod for several spinning boxes arranged next to one another are carried out. To prevent overstressing of individual parts, it is useful if between the clamping element 84 and the Abutment 85 a tolerance compensation spring 86 provided - "

T, the tensioning element hanging down without tension • two Ural swivel castors or rods 87 arranged one above the other and 88 provided. Between the two rods or pulleys 87 and 88 is an actuating lever designed as a pull rod 89 arranged on the side of the tensioning element lying opposite the rollers or rods 87 and 88 84 is provided with a pulley 90. The tie rod 89 is axially displaceable in the foldable housing part 1 - mounted. It has two adjustable threaded rings 91 and 92, which are located on the rear wall 22 of the housing part 1 'or. supported on a spring 93 surrounding the pull rod, the other end of which is supported on a guide sleeve 94 of the housing part 1 with a washer 95 inserted in between. The pull rod is secured in this way in the starting position shown. The housing part 1 is horizontal by one lying pivot axis 20 can be folded down.

When the actuating lever 89. pulled outwards from the hinged housing part is, he pulls the tensioning element 84 with his deflection roller 90 in a V-shape between the two rods or rollers 87 and 88. By this tensioning of the tensioning element, the pivot lever 82 is pivoted downward so that in the already described way the brake lining 83 against the

tel 81 creates. A tensioning of the tensioning element 84 and thus the spinning turbine 2 is also braked when the housing part 1 is folded down, since then also the pressure roller 90 between the two rods or rollers

- 20 -

209838/0963 i

37 and 88 is withdrawn. The UmIer.lirolle moves 90 on an arc around the pivot axis 20. This embodiment of the invention is also for air-bearing Spinning turbines are suitable, the bearings of which are arranged on both sides of the host 81. If rods 87 and 80 are provided they can run through several spinning units.

The embodiment of the invention shown in FIG can also be used if the clamping element iu is similar Way as in the previous embodiments in the operating position transmits a tensile stress and must be loosened for braking. In this case it will the tensioning element V-shaped around the rods or rollers 87 and 88 and the pulley 90 out so that there is braking can be relaxed to an approximately straight course. The from the clamping element during the operating state force to be transmitted can then either from a spring 93 arranged in accordance with the spring or from a corresponding to the tolerance compensation spring 86 arranged tension spring are applied.

In the embodiment according to FIG. 10, the turbine is in in a similar manner as bed of the embodiment of FIG. 1 mounted and driven. The pivot lever 8 is, however provided with a downwardly elongated shoulder which loads via a spring 96 supported in the turbine housing 3 is that the pivot lever 8 up in the Srernsstteilung wants to press, in which the brake linings 12 are in contact with the turbine axis 5. On the ones that are pulled down Approach of the pivot lever 8 engages a clamping element 97, which penetrates the longitudinal bench 17 and down on a longitudinal rod 98 is attached. The longitudinal rod is in support punching 99 stored at regular intervals on a

- 21 - BAD ORIGINAL

209838/0963

3ank 100 are attached and for support and mounting the longitudinal bank 17 serve. A fader 101 is arranged between the longitudinal rod 98 and the tensioning element 97 the force of which the pivot lever 8 is held in the working position.

The tensioning element 97, which can be designed as a tension band or tie rod, is provided with two stops 102 and 103. An actuating lever 104 through which the tensioning element 97 is passed is mounted in the support punch 99 below the stop 102. In the starting position shown, the actuating lever 1G4 rests on its side facing away from the stop 102 against a stop 105 of the support star 99, against which it can also be pressed with a spring in a manner not shown in detail.

ί
Below the stop 103 of the tensioning element 97 is a projection 106 which surrounds the tensioning element 97, for example, like a fork. The extension 106 is part of the foldable housing part 1, which can be folded down about a pivot axis 20.

When the operating lever 104 is pivoted upwards, it lifts the stop 102 of the clamping element 97 so that the part above it is loosened. The pivot lever 8 is then moved into the braking position by the spring 96 pushed. The same effect occurs when the housing part 1 is folded down, since in it the projection 106 lifts the stop 103 of the clamping element 97 and the one above it Part relaxed, so that the pivot lever 3 can also be brought back into the braking position.

In the embodiment of FIG. 10, in which two independent adjusting members, namely the operating lever 104 and the hinged housing part 1, attack the clamping element,

- 22 -

209838/0963

it must be ensured that the respective

te adjusting member does not hinder the movement of the clamping element.

A corresponding in principle to the embodiment according to FIG Embodiment can also be used when a tensioning element is provided which is loose in the operating position and which exerts a tensile force for braking got to. In this case, the stop 102 of the element 97 would be on the opposite side of the transmission lever 104 arranged, while the fixed stop would have to be omitted. The operating lever 104 would then be at a counterclockwise actuation cause braking. The stop 103 of the clamping element 97 would be omitted. The tensioning element would be guided around a deflection approximately in the area of the longitudinal rod 98 and then with it the approach 106 of the housing part 1 connected. This deflection of the tensioning element 97 would result in the same folding direction of the housing part 1, a tension is exerted on the tensioning element 97.

In the embodiment according to FIG. 11, the turbine axis is 5 a spinning turbine rotating in a housing under negative pressure in the wedge gap between two pairs of support rollers 7 stored. A ring magnet 107 surrounding the turbine axis 5 is arranged on the housing 3, which magnet acts on a Steel collar 108 of the spinning turbine 2 acts. This ring magnet 7 takes over the longitudinal securing of the spinning turbine either alone or in conjunction with a thrust bearing 109 With this advantageous spatial arrangement, it is possible to provide air ducts 110 within the longitudinal bench 17, Via which, for example, the housing 3 can be connected to a vacuum generator. At least one page the pairs of support rollers 7 is provided with a whorl 111, against which a drive belt 112 with a from below

- 23 -

209838/0963

Pressure roller 113 is pressed. The pressure roller 113 is mounted in a pivot lever 114, which in turn is in the The pivot axis 115 is mounted on the housing 103. Of the Pivoting lever 114 has', / eise not shown in detail a second and possibly a third arm, which lies above the turbine axis 5 and / or above the host 111 and with the corresponding brake linings that are applied from above to the turbine axis 5 and / or the whorl 111 is. In addition, 5 sin is below the turbine axis Radially acting magnet 108-1 is arranged, which pulls it into the wedge gap of the support rollers 7.

In the operating position, the pivot lever 114 is not in shown in more detail with a spring pressed into the position shown, in which the pressure roller 113 the Drive belt 112 presses against whorl 111 from below. In order to apply the brakes, the swivel lever must 114 r / ach can be pivoted down, causing the drive belt 112 loses its contact with the whorl 111, while at the same time brakes operated via the pivot arm 114 against the turbine axis 5 and / or against the whorl 111 from ohen.

In order to automatically combine the braking of the spinning turbine 2 with the opening of the turbine housing, transmission means are used provided that the opening of the downwardly abkla.ppbaren about a horizontal axis 20 lying below the longitudinal bench 17 Housing part 1 transferred to the pivot lever 114 in the sense that it is lowered. This is on a clamping element 117 is attached to an arm 116 of the pivot lever 114 and is attached to an extension 118 at a distance from the pivot axis 20 of the housing part 1 is attached. The tensioning element 117 consists of a two-part tension band 119 and a spring element 120. It is deflected around a roller 120.1 or a rod or the like in such a way that one is directed upwards

- 24 -

209838/0963

Pivoting movement of the extension 118 exerts a downward pulling movement on the arm 116 of the pivoting lever 114. -

The same arm 116, or preferably a further arm lying parallel thereto, engages independently of the Housing part 1 operable actuating lever 121 on. The end of the actuating lever 121 intended for this purpose is fork-shaped and encompasses a roller 122 which is attached to the corresponding Lever arm of the pivot lever 114 is attached.

When the arm of the pivot lever 114 carrying the roller 122 extends in the same direction with respect to the axis 115 like the arm carrying the pressure roller 113, this arm can be pivoted via the actuating lever be lowered clockwise. However, in order to achieve that the pivotable housing part 1 and the independent operating lever 121 are moved in the same direction for braking, it will be expedient to move the roller 122 on a relative of the arm of the pivot lever 114 carrying the pressure roller 113 on the other side of the pivot axis 115 To attach arm. The independent operating lever 121 is supported in the fixed housing 3 with a bolt 123.

Instead of a forked actuating lever 121, an actuating lever could also be provided that is directly against the arm of the pivot lever 114 carrying the pressure roller 113, it then expediently with a Reinforcement made of plastic or the like. Would be provided.

It is also a modification of the embodiment shown structurally easily possible, an independent actuating lever for the brake directly on the pivot axis 115 to put on and to connect to it in a torsion-proof manner. To this Alternatively, the pivot lever 114 could be used to take the brake

- 25 -

t 209838/0963

position can be pivoted directly if it is also connected to the pivot axis 115 in a rotationally fixed manner.

In the embodiment of FIG. 12, the drive is the Spinning turbine shown only schematically. Sr corresponds to im essentially of the embodiment according to Pig. 1. For the pressure roller 6, a pivot lever 8 is provided, which when pivoting upwards against the brake, not shown the turbine axis 5 presses. The upward deflection takes place by the force of a spring 15, which is attached to the pivot lever 8 and one to the housing 3 Abutment 124 is supported. The pivot lever 8 is in the operating position shown by a pusher

125 held, which is part of the pivotable housing part 1, which is a horizontally below the not shown longitudinal bench lying pivot axis 20 can be folded down. The pivot lever 8 is equipped with a roller _

126 is provided, against which the beveled front end of the pusher 125 when the housing part is closed 1-starts.

The one serving as a transmission medium in this embodiment The pusher 125 is designed as an adjusting member in that it is adjustably mounted in the hinged housing part 1 and is provided with an operating lever 127. The pusher 125 is designed as an angle lever whose in the starting position shown approximately parallel to the rear wall 22 of the housing part 1 extending legs on the Rear wall 22 is mounted in a bearing 128. In the area of the bearing 128, a torsion spring 129 is provided, which the Sets pusher 125 to its initial position shown, in which it rests against a stop 130 adjustably attached to the rear wall 22. Braking by lifting of the pivot lever 8 is effected when the pusher 125 via its operating lever independently of the

. - 26 -

209838/0963

closed and locked housing part 1 is pivoted about its bearing 128 against the action of the torsion spring 129. Braking takes place in the same way when the housing part 1 is folded down about its pivot axis 20, since then the pusher 125 is taken along by the stop 130-.

i ι

Pig. 13 and 14 show an embodiment of the invention in which the turbine axis 5 of a spinning turbine 2 is mounted in the partial gap between two pairs of support rollers 7 and in axial lease in a thrust bearing 131. The turbine axle 5 is driven by a drive belt 4 which is pressed against it from above with a pressure roller 6. The pressure roller 6 is mounted in a pivot lever 8 which is extended beyond its pivot axis 9 and presses with a shoulder 10 against a leaf spring 11 which has brake pads 12 on both sides of the drive belt 4 at its free end above the turbine axis 5. The pivoting lever 8 is urged by a spring 15 which is supported on the housing 3 which is connected to supply in a manner not shown a vacuum ^Λ. The spring 15 wants to push the pivot lever 8 up into the braking position in which the pressure roller 6 is lifted from the drive belt 4 and in which the extension 10 presses the leaf spring provided with the brake linings 12 downwards against the turbine axis 5.

The pivot lever 8 is facing away from the pivot axis 9 on its End provided with a roller 132, the axis of rotation. lies in the longitudinal direction of the pivot lever 8. To this Roller 132 presses a pusher 133 from above, which holds the swivel arm 8 in the operating position. The pusher 133 is with connected to an open housing part 134, which in this embodiment as a cover-like the turbine housing 3 closing component is formed, while the ühr- and dissolving devices in a not shown, • - 27 -

209838/0963

underneath the fixed housing are arranged. This open housing part 134 is around one in the area of his Vertical axis 135 lying on the side edges can be folded away from the turbine housing 3. The pusher 133 is with a Actuating lever 136 is provided and mounted pivotably about the same axis 135. On the cover-like housing part 134, which is also provided with an operating lever 137, a stop 138 is attached by means of which the pusher 133 is carried along when the housing part 134 is opened. The pusher is pulled against the stop 133 by means of a tension spring 139. This tension spring 139 lies in a direction transverse to the direction of travel the spring 15 lying planes, so that the forces of these two springs do not affect each other. This has the advantage that the spring 139 does not have to be made much stronger than the spring 15.

The pusher 133 is provided at its front end with a slope 140 so that it can be easily lifted onto the roller 132 can be. In order to transfer the spinning unit from the operating position shown into the braking position, must the pusher 133 are brought out of engagement with the roller 132, so that the spring 15 moves the pivot lever 8 into the braking division can bring. This is done either by the fact that the pusher 133 on its actuating lever 136 around the axis 135 is pivoted. The same movement of the pusher-133 is also obtained when the cover-like housing part 134 is pivoted about its axis, 'since the pusher 133 is moved by the Iäitnehmer 138.

The embodiment according to FIGS. 13 and 14 is fundamentally similar to the embodiments according to FIG. 1, 5 and 9, as in all of these embodiments, respectively a ¥ creation element is provided that is independent for itself be.ttltigbar, and also by a driver or the like.

209838/0963

the disclosed housing part caused to the same movement will.

c. In the embodiment according to FIGS. 13 and 14, no transfer means durch.die longitudinal bank 17 are passed, so that this, for example, to accommodate a Air duct 141 can be used.

The turbine axis 5 of the embodiment of the invention shown in FIG. 15 is provided with a whorl 142, against which a drive belt 4 with a pressure roller 6 is pressed from above. The pressure roller 6 is mounted on an arm 143 of a pivot lever 144 which is pivotably arranged on the turbine housing 3. The pivot lever 144 has a second arm 145, which is preferably designed as a leaf spring and which runs below the turbine axis 5. It has a brake lining 146 on its free end above the whorl 142. A spring engages the pivot lever 144 in a manner not shown, which wants to push it out of the operating position shown into the braking position in which the pressure roller 6 is lifted from the drive belt 4 and in which the brake lining 146 rests on the whorl 142. The pivot lever 144 is held in the operating position _t shown by a pusher 147. The pusher 147 is designed as an angle lever and is mounted in the turbine housing 3 so as to be pivotable about the end of a leg. The other leg rests on a pressure piece 148 which is rotatably attached to the pivot lever 144. The pressure piece 148 is mounted eccentrically on the pivot lever 144 and is provided with an actuating lever 149. The illustrated starting position of the pressure piece 148 is expediently secured by a spring, not shown, engaging the pressure piece or the actuating lever 149.

- 29 209838/0963

".Venn the operating lever .149 is pivoted in such a way that If the pressure piece 148 no longer touches the pusher 147, the pivot lever 144 can be bent upwards by its spring so that it then assumes the burning position.

The handle 147 is held in its illustrated starting position by an adjustable stop 150 of a housing part 151 which can be folded down from the turbine housing 3. The housing part 151; which is provided with an operating handle 152 is pivotable, for example, about a vertical axis 153 located in the region of its side edge. When the housing part 151 is pivoted or folded down, the pusher 147 is no longer held, so that the pivot arm 144 is pivoted upward into the braking position by its spring. The movement of the pusher 147 is limited by an ITase 154, which rests ¹ against a stop 155 of the turbine housing 3. In this embodiment of the invention, too, no parts are passed through the longitudinal bench 15, so that it can be designed as an air duct, for example for the removal of impurities that arise during fiber opening.

In the embodiment according to FIG. 15, two components of the transmission means of the opening movement to the brake are namely aas pressure piece 148 and the pusher 147, as adjusting members formed independently of one another either by the actuating lever 149 or by the housing part 151 Can be adjusted.

3ei the embodiment according to FIGS. 16 and 17 with a whorl 142 provided turbine axis in the execution

form according to Fig. 15 driven in a corresponding manner and

ebrenct. Λ.η the arm I43 of the pivot lever 144, which is the pressure roller β tract, attacks a spring I57 from below,

- 30 -

209838/0963

BATH

cie, on the turbine housing 3 or not shown Supports the longitudinal bench. The arm 143 is held by a pusher 158 is pressed into the working position shown, which is supported on a pressure piece 159 attached to the arm 143. The pusher 153 can be pivoted about a vertical axis 161 via an actuating lever 160. He wears on his the end associated with the pressure piece 159 is a roller 162, which rests on the pressure piece 159, which is provided with a slope and which is curved concentrically to the axis 161. The pusher 158 is supported by a leaf spring 163 in FIG The initial position is held in which it rests against the turbine housing 3 with a stop l64-1.

The leaf spring 1β3 is on a hinged housing part 164 attached, which can be opened about a likewise vertical axis 165, which is on the opposite side of the turbine housing 3 lies. The leaf spring .163 is biased by a stop 166 in the foldable housing part 164 held.

ι
The turbine axis 5 is braked when the pusher 158 is pivoted about its axis 161. This is done in that it is pivoted about its axis 161 by means of the actuating lever 160 when the housing part 164 is closed. Since the roller 162 runs on the slope of the pressure _____ piece 159, the pivot lever 144 can be raised by the spring 157 into the braking position.

The pusher 158 is also pivoted when the housing part 164 is about its axis 165 via its actuating lever 167 is opened. In this case, the leaf spring 163 acting as a stop is no longer in contact with the pusher 158, the then pivoted about its axis 161 by the force of the spring 157 is, wherein the roller 162 runs on the pressure piece 159 .

BAD ORfGiNAl. - 31 -

209838/0963

". '/ Grin the bridge 158 not about a vertical axis 161, but arranged to be pivotable about a horizontal axis is, so can on a "specially designed pressure piece and put on a roll at the end of the pusher.

In the Pig. 16 and 17 is a lock for the '' pivotable in a V / eise not shown Housing part 164 is provided so that it is not affected by the force transmitted via the leaf spring 163 is opened unintentionally.

In the Pig. 18 becomes the turbine axis • 5, which is only »indicated schematically, with a drive and a brake according to the embodiment of FIGS. 16 and 17 is provided. In the turbine housing 3 is a as two-armed lever designed pusher 168 mounted pivotably about a horizontal axis 169. One arm 170 of the . The lever is provided with a reinforcement 171 made of plastic or the like and rests on the arm 143 of the pivot lever 144. The other arm 172 of the pusher 163 is guided past a foldable housing part 173 or penetrates it and is designed as an operating lever at its outer end. In the housing part pivotable about a vertical axis 174 173 a compression spring 175 is attached, which presses against the arm 172 and which over the arm 170 and the. reinforcement 171 holds the pivot lever 144 in the working position. The pivotable housing part 173, which is provided with an operating handle 176, has an adjustable stop 177, through which the operating position of the pressure roller 6 can be adjusted. · J

3in braking is possible when the arm 170 of the trigger 163 upwards, is pivoted from the pivot lever 144, which then from his energy storage device, not shown, in .Io Lr emc c tellurig is brought. A swing of the arm

r 32 -

209838/0963

BATH ORIGINAL

170 upwards when the actuating lever is designed Arm 172 is pushed down. The same movement occurs automatically when the housing part 173 is pivoted about its vertical axis 174 in such a way that the with a pressure piece 178 against the arm 172 • Acting spring 175 is disengaged so that the pusher 168 no longer offers any resistance to its lifting. :

\ Jm to secure the braking position of the pusher 168, a resilient catch 179 is provided on the turbine housing 3, which engages in the braking position in a bore 180 of the pusher.

The embodiment shown in Fig. 18 can also be used when a housing part is provided which Can be folded down about a low-lying, horizontal pivot axis 20 and that the feeding device and the dissolving device for the sliver contains. Even with such a housing part, the compression spring 175 would with its pressure piece 178 brought when opening the housing part out of engagement with the pusher 168, so that the pivot arm 144 of his energy storage device can be transferred to the braking position ' can. This is possible in that the spring 175 is arranged obliquely and on a slope of the arm 172 of the Pusher 168 attacks.

In addition, it is also possible to use this embodiment to be used in a type in which the housing part 173 is on a horizontal guide from the turbine housing 3 is pushed off to open the spinning unit.

In order to achieve the object on which the invention is based, it is also possible to use one or two electrical actuation units.

- 33 -209838/0963

directions for a common brake to be provided, the "for example contain a common 'control switch, which can be switched both by the opening movement of the open housing part and by hand.

- 34 -

209838/0963

Claims (1)

Patent and protection claims 1. Braking device for an oven-end spinning unit, whose spinning turbine rotates in a housing which is under negative pressure and which has a housing part that can be opened is locked, which is connected to the brake by means of transmission, which enables the opening as a release or braking force transmitted to the 'brake, characterized in that one is independent of the opening of the housing part (1, 134, 151, 164, 173) operable actuating device (19, 25 »37, 50, 59, - 65, 73, 89, 104, 121, 125, 133, 148, -158, 163) is intended for the same brake. 2. Braking device according to. Claim 1, characterized in that that the independent actuator at least a part of the transmission means leading to the housing part is connected. 3 · Braking device according to claim 1 or 2, characterized in that that an independent braking device is provided which contains an actuating lever (50), that of a driver (51) of the apparent -. housing part (1) adjustable in its opening view ' is. "4 ·. Braking device according to claim 2, characterized in that that the transmission means leading to the open housing part (1) is an adjusting member (19, 25, 125, 133, 158, 168), which can be adjusted both by an operating lever and by the housing part is. - 35 -209838/0963 5 · Braking device according to claim 1 and 2, characterized in that that to the common transmission "mi-fctel an adjusting member (40, 57, 106, 118, 147) of the "openable housing part (1) and an independently operable Verstellglieö (37, 59, 65, 73, 104, 121, 148) attack. 6. "Braking device according to one or more of claims 1 to 5, characterized in that the transmission means a tensioning element (16, 30, 36, 45, 56, 64ι 72, 84, 97, 117) to which the independent actuator and / or the reveal Attack part of the housing. 7. Braking device according to claim 6, characterized in that ein.zum actuating the clamping element Brake tensionable or relaxable flexible band is used, which preferably has a metal reinforcement. 8. Braking device according to claim 6 or 7, characterized in that that as an independent actuating device with the clamping element (16, 30, 45, 84) connected or connectable operating lever (19, 25, "50, 89) is provided which is supported by a driver stop (22, 32, 51, 91, 92) can be taken along when the housing part (1) is opened. ι I 9 ". Braking device according to claim 8, characterized in that that the driver stop (22, 32, 51, 91, 92) opposite the housing part (1) or the actuating • guiigshebcl (19, 25, 50, 89) is adjustable. - 36 209838/0963 10. Braking device according to one or more of the claims 6 to 8, characterized in that a spring is attached to the tensioning element (16, 36, 45, 56, 64, 72) (24, "38, 49, 62, 68, 75) is connected, which holds the braking element" in the disengaged position. "11. Braking device according to claim 10, characterized in that the actuating lever (19, 37, 50, 59, 65t 75) is connected between the clamping element and the spring and can be moved in the relaxation direction of the clamping element against the action of the spring. 12. Braking device according to one or more of claims 1 to 7, characterized in that the actuating lever (73, 89) with one or more rollers (74, 90) or the like serving as deflections which can be moved approximately perpendicular to the flexible tensioning element (72, 84). 13. Braking device according to claim 5, characterized in that der.öffenbare housing part (1) and the Actuating lever (37, 59, 65, 73, 104) to the same transmission means, in particular the tensioning element (36, 45, 56, 64, 72, 97), attack. 14. Braking device according to claim 5i ', characterized in that that the actuating lever (121, 149) and the open housing part (1, I5I) on two consecutive • following Attack transmission media (117, 122, 147, 148). 15. Braking device according to claim 14, characterized in that a compensating element (120) is arranged between the two transmission means! :: (117, 122). - 37 209838/0963 15. Braking device according to claim 14 or 15, characterized characterized in that the open housing part (1) is connected to a clamping element (117) while • the actuating lever (121) is directly connected to a pivoting lever (114) carrying the brake. 17. Braking device according to one or more of the Proverbs 1 to 16, characterized in that "the actuating lever in the open housing part (1) is stored. 18 ·. Braking device according to one or more of the claims 1 to 16, characterized in that the actuating lever in the fixed housing (3) >> is stored. 19 · Braking device according to one or more of the claims 1 to 5, characterized in that the open housing part (1, 134) with one on one Brake arm (8) or the like. Acting pusher (125, 133) is provided, which is movably mounted in the housing part and is adjustable via the independent actuator. 20. Braking device according to claim 19 _K, characterized in that an actuating lever (127, 136) is connected to the pusher (125, 133). 21. Braking device according to claim 19 or 20, characterized characterized in that the pusher (125, 133) as a V / angle lever is formed, on one arm of which a spring (129, 139) engages. " - 38 -209838/0963 22. "Iroms device according to claim 4, characterized in that that in the stationary housing (3) one on a brake arm (8) o. The like. Acting Handle (147i 153, 163) is movably arranged, which is supported on a spring (163, 175) attached to the open housing part (164, 173) and which can be adjusted against the action of the spring by means of an independent actuating device is. - 23 · Braking device according to claim 22, characterized in that that the movable pusher (158, 168) is provided with an operating lever (160, 172). '24. Braking device according to claim 4, characterized in that a pusher (147), preferably designed as an angle lever, is mounted in the stationary housing (3) and is held in its starting position by a stop (150) of the open housing part (151) He blesses the action of a spring that keeps the brake released. - 25 · Braking device according to claim 24, characterized in that that the stop (150) is adjustable. 26. Braking device according to claim 24 or 26, characterized in that the pusher (147) on an independent adjustable pressure piece (148) acts. 27. Braking device according to claim 1 or 2, characterized in that in the fixed housing ■ (• 3) a two-armed lever '(168) is mounted, its an arm (170) on a brake arm (143) Q. - 39 209838/0963 acts -and his other Ana (172), who acts as an operating lever is designed with a spring 'arranged in the openable housing part (173) (175) is loaded, which can be disengaged when the housing part is opened. 209838/0963 BAD OWGtHAL