DE1909113A1 - wheelchair - Google Patents

Description

ι yim / m

1§09113

Jofei to; Bruce? J, RoaHofce, Wrginia

The E * £ in <Ju »g freziefefr sicfc a« if one

ana IiöFaliien with the

EädPern tienallHsHiifenkettea (drinking

. - - ■ "j: ■■ ■: ■■ ..- ■■" - ^;

for climbing erections and steep

pScEe £ a _f äie iie Sitzfläcae 4e »Stuhles efcwe norlzontsiejF Efeene fea ^ fcetSy a stüie one

iieetelxeneteat iurob; a

. * f JJ,

The purpose of the invention is to create a wheelchair which offers the driver complete safety, especially when climbing stairs.

The invention is based on the object of the treadmill it, especially when climbing stairs, in its direction of extension at certain points at the transition from the horizontal to the incline like this to make it bendable that the body position of the Driver, neither forward nor backward, does not change

The task is achieved in that the wheelchair alternatively on wheels and on the plane as well when climbing stairs and steep slopes on treadmills which can be driven by the fact that the two treadmill frames by means of three independently controllable pistons guided in hydraulic cylinders are movable up and down, of which the piston of the vertical cylinder, firmly attached to the chair ders with the cardan shaft of the treadmill frames, the The piston of the chair can be swiveled in a vertical plane hinged cylinder with the running axis of the two front treadmill guide rollers and the one as well pivoted on the chair in a vertical plane.

009830 / 09iä

BATH ORIGINAL

Cylinder with the two rear drive oil connected to the shaft connecting the two treadmills Bind, and the pistons movable in the cylinders Can be loaded on both sides and with known smocks are controllable.

Bolletches for years on stairs are by that USA-iatent 3 127 188 known, with driving on

♦ stairs using J »8uf bönd er η. And the pphren in the

Level at cadres. To this well-known execution

rungeart represents the wheelchair according to the invention a terbeeing, "if he has greater security and offers better performance when climbing stairs «

Daa drive on stairs using the Iiaufband according to

the crimping takes place advantageously ao. that the Ab drive on the stairs in the forward and that

Upward driving is carried out in reverse gear «, ™

The technical progress is seen in the fact that the treadmills can be bent sudden tilting near the front when starting up like heia is prevented from going down the stairs, because the treadmills aioh in both directions the "horiaontal levels at the beginning and end of the

009830/0988 BAD ORIGINAL, _{r ;} ,

Adjust the stairs * before the bath drive of the wheelchair starts to work.

Another advantage is the hydraulic actuation of the treadmill kink, which offers greater operational reliability than the failure-prone mechanical one Control of the known type of execution.

Also the different lengths of the treadmills and behind the knee parts is of advantageous importance, because especially when it comes to the rear Drive up the stairs through the longer front ones Treadmill parts provide greater thrust stands ο

Further advantageous features of the invention are

in the following description and claims 2 to 13 explained at the end of the description ο

009830/0988

BATH

In the drawing the invention is for example showno ea show:

Pig. 1-6 the different phases of travel with the chair according to the invention on one

Fig * 7 driving with the wheels on the same level, Figo 8 is a side view of the elevator at an angle installed treadmill frame,

9 shows a plan view of the substructure of the chair along the section line 1 / -EL in FIG. B,

Fig. 10 is a view of the elevator from behind _f F jg "11 Aneicht of Frhrstuhles from the front,

Fig. 12 is a section through a treadmill along the Section line XII-XII in Fig. 8, -

13 the top view of a treadmill frame without a treadmill »

009830/0988

. BADOkIGlNAL

The operation of the chair is forwards and backwards 0QgIlOh ₉ being driven by the main wheels or treadmills by means of reversible electric motors. Turns are made in such a way that a motor is switched off so that the chair can swivel around the parked wheel or treadmill.

To go up a staircase, the chair is moved backwards into the position (Fig. 7) on the puaa of the staircase and the rear hydraulic piston, which is connected to the rear axle, is lowered, thus oiling the lower treadmills. who rest on the steps (Fig.6) «Then the middle hydraulic piston, which is connected to the central axle, is lowered until the treadmills lift the main wheels off the ground _o The front hydraulic piston, which is connected to the front axle, becomes the Lowered the floor until the front wheels are lifted from the floor (Fig.5) Danr. the motors are started in reverse gear, with the rear treadmills climbing and the user slowly lowering the front treadmills using the front hydraulic system until the treadmills are in a plane (Fig. 4) parallel to the incline of the stairs. The seat remains in the same position when climbing and descending. »You continue to drive backwards until the middle caterpillar chain axis is at the top of the stairs (Fig. 3) o Banffi, the rear treadmills are activated to the floor wM as you drive backwards, the central cylinder becomes slow raised (Fig.2) until the wheels touch the ground _o Wäbreni ·,

009830/0888

As the chair moves backwards, the / front treadmills are slowly lifted and as soon as the chair is off the steps Released lat (Fig.l), all three cylinders are raised, he daa caterpillar chassis is fully in the raised position,

The chair will be brought down to the upper edge drove the stairs (Fig. 1) and both the front as well as * daa rear IiRufbandfahrgeatell are attached to the Mares b * w. touch the ground (Fig.2). The chair will Goalkeepers drove, with the front frame further geakt ™ will. As soon as the main wheels are on the edge of the step (section 3) «Iod * is the llitteleyllnder lowered to the wheels of lift off the floor. You will continue driving while the rear Fehrgeetell is long lifted, with the treadmills in a plane parallel to the slope of the stairs: atehen (Fig.4). As soon as the front treadmills daa unterate If you reach the steps, the front chassis is ■ langaaa lifted (Fig »5) while the chair moves forward. As soon as the central axis descends on the ground (Fig. 6), | all cylinders are brought to the raised position and the main wheels are used to drive the carriage (Fig > 7)

A practical embodiment of the invention is shown in the drawing. The chair 1 can be seen with an "RFd 2a and 2b" on each side. A handwheel 2a * and 2b * attached to each wheel lit in a known manner in order to be able to operate the wheelchair by hand. At the front end of the two

009830/0998

BATH ORIGINAL

Armrests la and Ib are the levers for the. Control of the hydraulic systems, arranged for the brakes and for each engine. The two wheels 2a and 2b are articulated on an axis 3 attached under the chair seat Ic. The diameters of the two wheels 2a and 2b are calculated in a known way large enough so that the chair can be driven with sufficient ground clearance. "Two castors 5a and 5b are pivoted on a vertical axis 4a and 4b, fastened under the front part of the chair that forms the footrest Id. Each wheel 2a and 2b is driven by an electric motor 6a and 6b, the arrangement of which is described below. The wheels 2a and 2b are attached to the drive shaft of the electric motor 6a or "6b in known manner by a drive gear 30a and driven 3ob, and engage in the drive wheels 32a or _o 32b to aer inner surface of the wheels 2a and 2b fastened bind ", the motors 6a and 6b can be ^{disengaged by the levers Ie and Ie 1} ° on their engagement in the baits 32a and 32b. The levers Ie and le are arranged on the sides of the chair o Ic, and are by control rods if and if ο connected to the motors 6a or "6b, the pin to hinge Jj ₀ ur.d 6c 6c ¹ are pivotable in the disengaged state when the user operation through the chair von.Hand

the handwheels 2a »and 2b ^; want to move _o

BATH ORIGINAL

Both treadmills 12a and 12b each consist of an internally toothed, continuous otarken rubber treadmill, old core tires made of steel cables embedded in the treadmill, as is known, each of sufficient width, whereby the outer surface or friction surface is equipped with strong, transverse desert or profiled tires , while the inner surface has teeth 12c ₀ f

The two he treadmill are mounted gröisstmb'glichen distance from each other between the wheels 2a and 2b under the two iJeifesn Desj chair ₀ During driving on the ens

12a.

Wheels 2a, "been jr level LaufbanderV / - and 12b in about IuXrLs ^JML-1 ^ IIEA position in suave ic prevent .Abstand from boron en gehulUan, iüitfeela hydraul ii-nni actuated piston!" In d 2b Daa vertical ohova find doe hydraulic without cylinder 14, in which the piston, a © ttia dia piston rod 15 on

and from being moved, is at the bottom of the chair seat a ™

The piston rod 15 _9, which extends downwards from the cylinder 14, is articulated to a horizontal shaft 16 which supports the treadmill frame 17 and 10 in the manner described below. The treadmill frames 17 and 18 are pivotably arranged on the shaft 16, which supports a ie. Each of the two treadmill geatelle 17 and 18 consists of a front and rear section of rails 19, 19 * and 20, 20 °

0 098 30/0988 BAD ORIGINAL

Axis 16 is necessary to prevent the stutii at the beginning of the descenta tilts and enables eboth the front as well as the rear treadmill frame independently of the position of the central axis 16 to lift vein to lower no

The treadmill drive wheels 27 and 21 and the rollers 22, 23, 24, 25 and 26 as well as the front guide roller 28 are arranged between the pairs of rails on bolts or shafts, respectively. The front pair of rails 20, 20 'is longer than the rear pair , where the aspect ratio is about 4 * 5. Each rail of a pair of rails is arranged pivotably on the shaft 16 which connects the two treadmill devices 17 and 18, with their ends facing each other. The various rails 19, 19 'and 20, 20 * are against axial displacement on the shaft 16 by known devices protected, like a _CT setting or snap rings. The ends of the front Sehienenpaarea 20, 20 'which are mounted on the shaft 16 are cranked so _s that the rails on each side in a plane runny At the front end is elna shaft 29 which put the two Laufbandge = 17 and 18 connects One of each treadmill rack mounted in both rails. Between the two rails, the guide roller 28 rotates freely on its shaft 29 in each treadmill rack. The purpose of this role "

009830/0988

-> - 1908113

Jn

let the same for each treadmill rack. The diameter the guide roller 28 corresponds to the distance between the two Trunrns of the treadmill 12a or 12b from each other.

The above-mentioned rollers 24, 25 and 26 are mounted between the rails 20 and 20 *, and at equal distances between the shafts 29 and 16. Their diameter is smaller than that of the guide roller 28, and they lie on the Bodenabsohnitt the treadmill 12a or _β · 12b on o

The two Lrufbänder 12a and 12b are driven by means Einstelloder V-belt (timing or ⁿ V "belts) 4Ba and 48b, 47a and 47b connected to the pulleys with the pulleys 51a and 31b (Flg.ll) which in turn keyed to a drive shaft of the electric motors sa and 6b are attached, next to the drive wheels 30a and 30ObO As shown, the motor 6a drives the main wheel 2a The treadmill 12a is driven by a gear transmission by means of an adjustment belt as soon as the main wheels are lifted off the ground. Likewise, the motor 6b drives that Main wheel 2b and also the treadmill 12b.

The two timing belt 47a and 47b are normally slack when the treadmill frame in a raised position (fig.7) and a portion of the sag of the belts 47a and 47b is taken up by a tensioner under Federbalastung 49a or 49b _o As soon as the fluid cylinder 14, which is connected to the axle 16, is lowered until

009830/0988

the main wheels 2a and 2b are freely lifted from the ground, if the belts 47a and 47b are sufficiently tensioned, they do Drive belts 12a and 12b as pulleys 48a and 48b attach to belt drive gears 27a and 27b are attached, which in turn are fastened to the axle 16 by means of bearings. While the main drive wheels 27a and 27b in which the centers of the treadmills 12a and 12b are arranged, a second set of adjustment pulley belts 10a and 10b connects the drive wheels 27a and 27b to the. rear drive wheels 21a and 21b, where 'they run over the pulleys 11a and 11b, which with the wheels 27a and 27b are bolted together, and via pulleys 9a and 9b, which are each bolted to the wheels 21a and 21b Pulleys 9a and 9b on the axis 33 and because the -Achaeh ^ -6 and 33 always have the same distance from each other have to "hurry them on rails 19 and 19." are attached, the drive belts 10a and 10b are always for the drive the treadmills are tensioned and transmit the torque from the drive wheels 27a and 27b for driving the wheels 21a and 21b. This method of driving the treadmills prevents slippage and enables the user to steer the wheelchair more precisely, as the lower-lying part, either the wheels or the access belts. Drive car »

009830/0988

* BADORfQlNAi

The motors 6a and 6b, the L: ufbender \ 2ά and 12b v; is ofesn specifically driven _P engage on the wheels 2a and 2b also the wheels 30a and 3Jb, which engage in the hader 32a and 32b and rotate while the treadmills let the chair go o DI ea plumb necessary to transfer the drive from the Lmulbänder softly to the impeller he i5u, with which a rise or a

Descent completed solders The Notbremaön 50a and 50b atellon rotation of the wheels upon actuation from "by being on the drive wheels 32a or _e 32b bremseno Dieae brakes 50a and 50b hydraulically actuated Punktbreraoen (spot-brakes) of a known type and not only prevent upon actuation "Daaa the cadres ? M and 2b rotate, but also average both motors 6a and 6b, elnea microachaltera arranged next to the Bremagroff 52

as a result of which a braking effect on the two treadmills 12a and 12b is built up via the single-position belts 47a, 47b, or 10a and 10b. The above-mentioned rollers 22 and 2J aind between the rear pair of rails 19 and 19 * and zwiachen the Antrieborädern 27 and 71 mounted, the bgw by means of bearings in axles 16 _D sinda mounted '53 This Hollen have the same diameter wiö rollers 24, 25 aowio 26 and are only on the 'lower section of the treadmill he 12a and 12b on "

Ö09 8 30 / 09S8

The piston rod 34 of a not visible: Piston 1 ^ t articulated to the center of the rear Achae 33. This piston moves in a cylinder 35 and can be hydraulically operated on both sides. Daa end of this cylinder is on pins 37a and 37b by means of a Querstlickea 36 via two bearings 36a and 36b pivotally ₀ The bolts are diametrically opposite to the daa Laufgeetell rising and falling cylinder 14 is = introduced ο The pivot axis of the cylinder 35 is parallel to the Wheel axle 3 »All four axles 3, 16, 29 and 33 remain constantly parallel to each other and to the ground,

By actuating the piston in the rear cylinder ar 35 the two rear pairs of rails 19 and 19 'of each runner can be pivoted about the axis 16, which support the two pairs of rails of each Lau! " This rear part of the treadmills 12a and 12b can thus at the same time with respect to the rest of the front part around a desired Angle are pivoted »Aß the two ends of the shaft 16, from the two pairs of rails 19, 19 'and 20, 20' extends at the junction of these pairs of rails, levers 38, 38 'are pivotable by a length ao ange = arranges that a roller 39 arranged on a pin 40, which connects the lever ends with each other, en of the outer nose The surface of the upper part of the treadmill remains »The purpose dei?

Roll 39 consists in removing the parts of the upper treadmill

00S830 / 0988

Sohnittes, which belongs to the front and rear pair of rails, to be kept in a parallel position to the corresponding part of the lower treadmill section when the front pair of rails is rotated at an angle to the rear pair of rails by 'Ö ie Achae 16. This allows roller 39 has a special shape (Fig.12), the ee, the treadmill υ r 12a and 12b can pass under it, without the cleat 13 while etören ₀

In the! Middle of the continuous wave 29, which at "

front end of the two pairs of rails 2O _t 20 * attached is, the piston rod 41 of a piston is articulated, the This can be operated hydraulically on both sides

Piston moves in cylinder 42, the end of which is at a Axle 43 is attached, which is attached under the chair seat

is «This axis is arranged parallel to Welüup 29, and soBlt also parallel to wave 16 “'ird des? Piston in

Cylinder 42 is adjusted, so the front part of the treadmill

dee both treadmill sections 17 and 18 around the axis 16 J

pivoted, which the front pair of rails 20, 20 * with the rear pair of streaks 19t19 * connects with articulation.

For example, the impellers 2a and 2b in one When driven level, the pistons of both cylinders and 42 are retracted to the rearward position, which is the Movement point 43 of the Yorderzylinders 42 to the next lies, as well as the movement connection 37a, 37b of the rear

009839/0988

BATH ORIGINAL

Cylinder 35o The front of each treadmill ■ 3 table 1? and 18 ₉ which is controlled by the rails 2R, 2u *, is therefore remain in position horizoataler ur.ö the rear section, the v controlled by dae Sßhienenpaar 19 »If? ird _s is in a position ußtes ¹ an angle upwardly towards the front of held ₉ with the pate place being sucked through the piston Ie cylinder 14 ®af? # arrtsoj as in the Seohnusg Iß eiss © r broken Lini®. . shown

The hydraulic systems a 14 ₉ 35 and 42 sin, «! known? Art (Abboö) and have double-acting®BÖ © ₉ with d & n KolbBU ^ ' rods 15 "35a or _e 41 connected pistons", the pistons throw separately by control of known type ₉ attached to the armrests la and] b, actuated lift these controls a micro switch located next to the control levers, whereby the electric motor 44 is started when they are moved either forwards or backwards = the motor 44 runs under direct current from the battery 7 via an electrical system (not shown) and drives the hydraulic pump 46 whose shaft is connected to the motor 44. The pump 46 supplies hydraulic pressure to all three cylinders, and the hydraulic brakes 50a and 5OB ₀ The container 45 contains a sufficient amount of hydraulic © FlUttigkeit for the actuating cylinder and the üev Bremsenο

009830/0988

' BATH

The aforementioned controls for the actuation of the hydraulic systems are four-way controls, two for inlet and zv / ei for outlet and work as follows:

The front axle 29, which is connected to the front treadmill frame 17 or 18, is lowered by moving the control lever 53 forwards, with a kikro3Ohalter the laotor 44 stafts under this movement, which drives the hydraulic pump 46, whereby hydraulic Liquid is pumped to the upper inlet of the cylinder 42, which in turn drives the piston and piston rod 41 downward, and since these are connected to the axle 29, the front treadmill parts 17 and 18, respectively, are pressed down to the floor, with the front running wheels moving 5a and 5b lift off the floor ₀ The piston is only actuated as far as desired and the lever 53 returns under spring pressure when released to the open or closed position (spring not shown) ₀ This stops the movement of the cylinder, as does the motor 54 namely via the aforementioned I /; micro switch ₀ To raise the front axle 29, the control lever 53 is moved back, causing the pump 46 through the rotor 4 4 is driven again, and the liquid is pumped from the top of the cylinder to the lower inlet, so the piston is driven upwards, lifting the front axle 29 and thus the front treadmill frame a 17 or 18 "

00I830 / 09S8

BATH

Likewise, the central axis 16 is raised and lowered vertically by means of the control lever 54, which lever is attached to the armrest Ib and the rear axle 33 is also attached, raised and lowered to the armrest Ib _{by actuating the control lever 55 f}

The control levers 51a and 51b are mounted on the armrests la and Ib and control the actuation of the motors 6a and 6b, respectively. These controls are known types, internally with variable resistance, whereby the speed of the motors is controlled in the following way. If the controls are moved forward slightly, a microswitch is actuated which starts the motors 6a and 6b and allows the wheelchair to move forward slowly; the further the controls are moved forward ₉ the faster the chair runs. To let the chair run backwards, the controls are moved back and again the chair runs the faster the more rider they are moved It is necessary to set the control levers 51a and 51b to the middle or shut-off position and the motors 6a and 6b are switched off by the microswitch. To turn, one of the control levers is set to the middle position and the chair, which is driven by the opposite motor , swivels around the parked Lcufrado If an invalid has only one arm, all controls can be on one with a hinge

001830/0919

provided attachment board can be attached, as shown in the drawings ο

The above-mentioned brakes 50a and 50b can be of different types, but the point brakes of the plug-in type have the advantage ₉ in terms of their reliability and the small amount of space they require.These brakes are only intended for use in cases of feces without switching off both motors 6a and 6b via microswitches ₉ as soon as these are actuated. In this way, overloading the motors is prevented and the λ user kaiia inevitably use the braking effect without @ise Gefate ₉ that »the wheelchair calibrates during de® blemishes

CÜ9330 / 0988

Claims (1)

ec. Patent claims ^ hrstuhl, which has a treadmill seat consisting of a front and a rear, connected by a joint, with wheels that hold the seat of the chair in an approximately horizontal plane, which is connected to one another by a joint he alternatively wheels (2a ₉ 2b ₉ 5a, 5b) and at the level and beim'Treppen- and steep slope "driving on treadmills (12a ₉ 12b) thereby is movable _$ dase the two treadmill knitted parts (17» la) by three independent controllable in hydraulic cylinders (149 42 _S ; guided piston up and down are movable ₉ of which the piston dee vertical, feat with the chair (1) connected cylinder (14) with the articulated shaft (16) of the treadmill frame, the piston of the chair (1) cylinder (42) pivoted in the vertical plane with the running axis © (29) of the two front treadmills = »guide rollers (28) and the cylinder (35), also pivoted on the chair (1) in the vertical plane, with which the be iden rear drive rollers (21) of the two conveyor belts (12a and 12b) connecting shaft (33) are connected, and the pistons movable in the cylinders (14, 42 and 35) can be acted upon on both sides and can be controlled by known means 009830/0988 2 «Jfabrsteubl according to claim 1, characterized in that daaa at the transition from La. On wheel »Drive η to run on the treadmill and vice versa, the running wheels (2a,? b) and the drives (21 and 27) of the Luufbänaer (12a _P 12b) with the two reversible drive motors (6a) operated by a battery (7) , 6b) and the decoupling of the impellers (2 <j, 2b) takes place by Weßnehvvenken äeu laotorabtriebo - Zphnradea (3u &, 3Ob) from the gear (32a, 32b) connected to the impeller (2a, 2b), while the uncoupling takes place of the treadmills (12a, 12b) by loosening the V-belts (4Ba, 48b), at least one strand of which is under the action of resilient tensioners (49a, 49b) 3. Elevator according to claim 2, characterized in that the unlocking and engagement of the wheels (2a, 2b) by pivoting about the axis (6c) pivotally mounted i engine (6a, 6b) by means of a hand lever (Ie) and the Knt - and coupling of the treadmills automatically by releasing and tensioning the V-belt (48a, 48b) while lifting or lowering the shaft (16) mounted in the joint of the treadmill geatelle (17 | 18) with the V-belt wheels (48a, 48b) through the piston dea am Chair (1) attached cylinder (14) took place 00S830 / 0988 4o elevator according to Anapriichen 1 to 3, thereby gekennaeich.net that the treadmill geatolle (Ib, 17) consist of ^ e two pairs of lines (19, 19 'and 20, 20 °), whose facing pairs of ends are cranked and open the treadmill drive shaft aind pivotally mounted to each other, on the üindenpaaren between the two, by the engine (respectively 6a ₀ 6b) via the connected to the shaft (16) outside of the rail ends (19,20) arranged V-belt pulley (48 * $ 48}. Drivable treadmill drive wheel (27) feat sits, and on the other ündea each pair of rails (19,19 *) between the two rails a second treadmill == drive wheel (21) sits firmly on the shaft (33), which means on it feot seated V-belt wheels (9a »9b), which are in rotary connection via V-belts (10a, 10b) with the V-belt wheels (Ha, lib) on the shaft (16) ο 5o elevator according to claim 4, characterized. net that between the free end of each pair of rails a (20, 20) a treadmill guide roller (28) freely rotatable on the ends connecting these two pairs of rails Axis (29) mounted aind. 00S830 / 09I8 BATHROOM 0RIÖ1NAL 6. Elevator according to claims 4 and 5, characterized in that a plurality of rollers (22, 23, 24, 25, 26) are mounted _{between the two pairs of sofeienen (19 8} 19 ⁸ and 20, 2O ^{8) which are only on} the inner surface of the lower treadmill run are effective « 7. Elevator still claims 4 to 6, thereby | marked _t daos a roller (39) rests on the upper floor of the upper Irucuna of the treadmill (12a, 12b) above the joint parts (16) of the treadmill geatelle (18,17), which can be seen at the upper ends of levers or at the upper end mindeateHs each have a lever supported iat (3b _s 38 ') and the levers (38, 38 ^{) uind drehbor mounted freely on the treadmills drive shaft (16), 8. Pahretuhl according to claims 4 to 7, characterized marked that the front part (20, 20 «) of the Λ The treadmill parts (18, 17) are longer than the one at the front Part (at 16) hinged rear part (19,19 ') » Thus Elevator according Anspruoh 8, characterized in that the length ratio of the front Laufbandgeetell portion (20, 20 ¹⁾ to the rear part (19, 19 ') is about 4: 3 ο 0 09830/0988 BATH 1O ₀ Ffbrstuhl according to claims 1 to 9β characterized in DAEA to the impeller ~ Antriebaräder (32a, 32b) effective brakes (50a, 5OB) which can be switched on or elektromagnetischmechaniach, hydrauliach or mechanically by hand " 11ο Elevator according to Claims 1 to 10, characterized in that, connected to the chair (1) feat , a hydraulic pump (46) driven by a direct current motor '(44) fed by the battery (7) is provided, which: .. it a fluid container (45) is connected, and which operated the hydraulic cylinders (14, 42, 35) and the hydraulic brakes (50a, 50b) Elevator according to 12o ^ napruch 11, characterized in that darss the hydraulic control of the cylinders and Bremaen einean itself is known Viervvegeateuerung, two for intake and two for A _{u o} slass 13o Elevator according to claims 11 and 12, characterized in that a Mikroachalter in V / irkverbindung communicates with the hydraulic control apparatus, which turns on the .Elektromotor (44-) at power of a hydraulic device ο. . 009830/0988 'BAD 0R16JNAL