DE2025114A1 - Fluid device, in particular for operating valves, switches, motors and the like - Google Patents

Description

- "'20251U

vln / au K α r I ■ A. B r OS β Munich-Pullach, May 21, 1970 'W36, L'. _r .: ing. ■ <"■■ ·

D-8C23 iVvJ.idien - Pullach

Wienersir. 2, T. Mdin. 7,9305 70.7 9,317 82

HYSDEROQMP.ANY, a Nevada, United States company located at 2902 NE Glackamas Street, Portland . Oregon, USA

Fluid device, in particular for actuation of valves, switches, motors and the like.

The invention relates to a jet pipe control device for actuation of valves, switches, motors or other elements that are controlled by the speed pressure of a medium should. ..

Using the print speed of a media jet as " a hydraulic booster or loader for operating valves or other similar controls for engines are well known. A known type of media jet control device uses a stationary nozzle from which the media stream. into one or more medium channels is diverted with the help of one or more currents a control medium that acts on the primary medium jet. Such a system is for example in U.S. Patent 3 139 895. However, this system is complicated since a separate mechanical, electrical or medium system is used to deflect the medium jet to control. Such a system thus limits the possible arrangement of outlet openings with respect to the stationary nozzle, " due to the limitations of the degree of deflection and deflection direction of the medium jet. .

Another known type of media jet controller is the jet pipe with which a movable nozzle is used. The nozzle comes with one or more inlet ports by means of a mechanical, electrical or hydraulic

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lical facility. Known jet pipe devices are limited to the use of a limited number of ports and control devices to which they are applicable can get, due to the fact that it is not possible to use the jet pipe in more than one plane and move over any great distance. The result is the use of these known jet pipe devices limited to the control of a single valve, switch or other element to be controlled. A well-known strait pipe or jet pipe control is in the US patent 2 904 057.

Known jet pipe assemblies became generally close to those Arranged elements that are to be controlled by them, the jet pipe usually removed with the help of a complicated electrical, mechanical or hydraulic device was moved, or the controlled elements together with the jet pipe close to the operator's control equipment. Such arrangements have made it necessary made that the operator observes the control devices in order to initiate a function, these arrangements could not, however, give the operator the feeling of being in control. Such arrangements led to problems when they were used on industrial vehicles where common a limited space is available, and 2s®r to problems with regard to the arrangement of the Strahlrolir control units.

The present invention seeks the disadvantages of the prior art To eliminate this technique, it provides a jet pipe controller in which a single jet pipe sends a jet of media into any one of a plurality of input channels can direct, which is arranged around the jet pipe crowded out are to thereby operate iron several uirt @ rseM, e & - control elements and thus several different Functions. The jet roller device according to the

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The present invention can also provide a proportional flow between two channels in order to initiate several functions at the same time. This is achieved in that the jet pipe is arranged for a Universe " ¹ movement and the inlet openings of the many medium channels are arranged crowded together in any desired shape or arrangement, so that their axes come to lie in different different planes.

The present invention also eliminates or eliminates the need for separate mechanical, electrical, or hydraulic systems for moving the jet pipe. The jet pipe according to the invention is directly connected to a hand control handle at the operator's station connected. The valves or other elements to be controlled and the usually massive ones associated with them In this way, connection points can be arranged at a convenient location, remote from the jet pipe, and one receives a versatile possibility to change the position of such elements. This feature is of particular importance in connection with the use of the nozzle control devices in Industrial vehicles, such as 3. Lifting carts where there is hardly any limit is.

According to another feature of the invention, the jet pipe is or its Stmer lever in its movement by an associated guide part throttled so that the operator can feel the position or the arrangement of the jet pipe without him doing the Control device observed. This creates the possibility that the driver of a vehicle with jet pipe control devices can observe other operations of the vehicle.

According to an advantageous embodiment of the subject matter of the invention is a single repressure lance control device Can be moved by hand at the driver's cab in order to control both the lifting process and the tipping process of an industrial lifting trolley by using suitable control valves in one

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High pressure medium circuit are actuated.

Further advantages and details of the invention emerge from the description of an exemplary embodiment below Reference to the drawing. In this show:

FIG. 1 shows a side view of a lifting trolley, with an oil-jet pipe liedium amplifier system according to FIG The present invention is shown which is used to control the tilting and lifting of the vehicle is;

Figure 2 is a vertical sectional view of an embodiment of a jet pipe control device, which in the System of Figure 1 is applied and where schematically !! Sections of the control circuit and the controlled elements of the system are shown;

Figure 5 is a sectional view taken along line 5-J of the figure in the same hatred as Figure 2;

FIG. 4 shows a partial representation along the line 4-4 FIG. 2 on the same scale as FIG. 2;

Figure ^ shows an ojhnittdarstellung along the line 5-5 of Figure 2;

Figure G is a vertical sectional view of a second embodiment of the present invention;

FIG. 7 shows a position (not shown) along the line 7-7 of FIG. C in the same hat rod of FIG. 6;

FIG. 8 shows a position similar to that of FIG. 7, with one-abcui-ndolte guide device for the jet.

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.- ^ ί ^ ηο. '^. SADORIGINAt

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tube according to the present invention is shown;

FIG. 9 shows a modified arrangement of FIG Admitting a medium jet from a single one Take up jet pipe, this representation being similar to that of Figure 3;

Figures 10 and 11 schematically embodiments of various Elements made using the radiation tubes of Figure 6 and 6 in addition to the elements specifically shown in Figure 2 are shown, can be actuated.

The jet pipe controller according to the present invention is particularly suitable in connection with vehicles for handling loads. For example, a single lance controller can be used used to control the operation of the tipping and lifting operation of a lifting trolley 10 shown in FIG will. One can also use such a control device for controlling the operation of a hydraulic gripping jaw and Sideshift suspension used. Other possible applications which are not limited to vehicles are obvious and numerous to one skilled in the art. It should be emphasized that, although the invention is used in connection with an industrial lifting cart is described, the subject matter of the invention is not limited to this application, but a number of possible applications are available.

The cart 10 according to FIG. 1 has a driver's cab 12 with a seat 1J, a steering wheel 14 and manual control devices 15. Dei? Lifting trolley also has a usually upwardly extending mast 16 which is attached at its front side to a load-sole attachment 17 which carries lifting forks 18 which are vertically attached to the mast by means of an extendable hydraulic power cylinder 19 and associated pulling devices direction 20 are movable. ü * r Haet canoe inclined forward

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which and are also inclined backwards by means of another hydraulic cylinder 21 ",

The lifting cylinder 19 and the Uiges cylinder 21 are visualized in connection with their hydraulic circuits in FIGS. 1 and 2. These cylinders are connected at their opposite ends to a relatively high pressure hydraulic circuit, this circuit being indicated by solid lines. The circuit contains controls for controlling the flow of the pressurized medium to the opposite ends of the double-acting tilt and lifting cylinder. This control device contains a first spool valve 25 for controlling the extension and retraction of the lifting cylinder 19 and a second control valve 27 for controlling the extension and retraction of the tilt cylinder 21. Each such valve is in a neutral position with the aid of a pair of springs 29? 30 spring-centered at its opposite ends in order to interrupt the flow to the lifting and lifting cylinders. The valves are actuated with the aid of a pressurized medium or whose velocity component flows in a medium circuit at relatively low pressure and is indicated generally at 32 with the aid of dashed lines in FIGS The low pressure circuit contains a first pair of channels 34, 35 £ & ^Γ & as medium, which lead to the opposite ends of the lifting control valves 25, and also a second pair of channels 37 $ 3 © ^ the medium which - to the opposite ends of the tilt- Control valve. 2? In the system shown, a first © Migderirackpuape 40 supplies the Niederdirackkreig 32 bit of the pressurized medium, and a second {pump 42 supplies the HoQhdru. @ & krei @ 23 with a pressure under pressure & lieheis-Eelina »- a Ströatassgsteller 43 in the circle -?.? 23 divides d @ a current üea Ifeiiins "ziischea ä © a 1 · η 25 and 2» Ea goes Jeäoeli hwrns * tHe EIAs mimmotn® 3 uwp · vorgeeeheis be kaan

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th hydraulic components to provide one medium for both circuits feed under pressure.

The first and second pairs of channels to the valves in the valve pressure circuit 23 terminate at opposite ends thereof at an array of four inlet ports shown generally at in FIG. 2. The openings are arranged in an end wall 46 of a jet pipe chamber 48 which is defined by a housing f> 0 for a device which generates a Kediumssträi and this device contains a jet pipe 52. The housing [ '■><, also takes on a second lance 56, the other for controlling functions of the lifting trolley is used and in the same way as the jet 52, the lifting and tilt functions controls. Therefore, only the lifting and tilting functions need to be described in order to understand the general principles of the operation of both radiation tubes . do. Both jet pipes are in the form of outer end extensions of waves> 8, 60 and manually operated control handles 62, 64.

In the exemplary embodiment according to FIG. 2, the burahl tube housing is \ J irinei'iii »lb eiuet; up to the cladding trim that extends above whether the lifting trolley Leiui driver's cab is mounted, whereby a wall of clothing or cover a controller 6 / aarrepresents.

As shown in FIGS. 2 and 5, the jet pipe 52 is within a limited total space in a ball and socket universal assembly unit angeoi'diiet, which-enlarged by one spherical section 69 of the jet pipe is provided is and also an annular uehäuseeinschubteil / u, the together define an end wall of the cylinder 43. The Stre nlroiir 52 is arranged so that its nozzle section 72 is aligned with the opening 73 to the generally convex. Area 46 showing the inlet ports 44 has, tends.

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The arrangement of the group of inlet openings with respect to the The nozzle opening can be seen very clearly from FIG. 3, the neutral position of the nozzle opening ^ 3 with dashed lines Lines is displayed. The inlet openings 44 have an opening 34a for the medium channel 34, as well as an opening 35a " for the hedium canal 35, an opening 37a for the canal 37 and an opening 38a for the channel 38. The four openings are around the extension or projection of the nozzle opening 73 in its neutral Grouped location, with these openings radially from this neutral position in different directions so offset are that the axes of these openings lie in more than one plane, so are not aligned linearly, like this is the case with the prior art. This compact arrangement the inlet openings around the nozzle and the entire arrangement or Monfege of the jet pipe allows you to use the jet pipe can pivot in any direction from its centered neutral position and in a position in which the jet pipe with any one of the four outlet ports is aligned to directly pressurize / u the selected port to produce the to actuate the correct valve in the desired direction. from It is also important that this can be done, without having to first direct the medium jet into some other opening, if this is desired.

The basic arrangement described above, however, also allows the flow to be split between two adjacent inlet openings in the sense of simultaneous actuation of two valves or other control elements, if this is desired by changing or modifying the size or the distance between the inlet openings, or the size of the nozzle jet or 'by any combination thereof. This is illustrated, for example, in FIG. 8 in connection with the inlet openings 34b, 35b, 37b »38b, the nozzle opening; 73b is in its centered neutral position and in a position 73b " ¹ the flow

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tion is divided between the openings 34b and 37b.

The basic arrangement of the crowded openings ind that Universally movable jet pipe enables a single 'jet pipe to deliver its medium jet in large numbers Aligns openings, or. introduces to a lot of control devices to operate, as shown in connection with the 16 inlet ports 98 of Figure 9, which are in several parallel, lateral and longitudinal rows around the extension of a nozzle opening 100 are arranged.

According to Figure 2, the jet pipe 52 is in its neutral position Spring-centered with the aid of an elastic elastomer part 76, this part also acting as a medium seal for the chamber 48 serves. The medium is forced with the aid of the pump 40 at low pressure through an inlet channel 78 which extends through the Radiant tube housing 50 extends, and then through the interior of the elastic part 76 and in the jet pipe shaft, where this Channel then is in flow communication with an axially extending channel 80 which leads into the nozzle 72 and also to the opening 73 · When the beam - »tube is centered in its spring neutral position, the medium nozzle jet only acts on the concave end surface 46 and is removed from the chamber 48 discharged through an outlet channel 82 into the sump 84, without entering any of the inlet ports and thereby actuating any of the control valve means. if However, if the opening of the jet pipe is axially aligned with one of the inlet openings, then the velocity component or pressure of the medium jets it through the associated one Transfer medium channel to one of the valves in order to operate it.

The low pressure medium circuit 32, which contains the pump 40, also sees a medium jet through the inlet opening 78

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to the jet pipe 56 through a continuation 79 of the medium inlet channel 78 before. The Kafial 79 leads across the wave of the . Jet pipe 52, further through the elastic part 76 and the middle section of the housing 50 and then into the elastic Mounting part and the shaft of the jet pipe 56. Reverts similarly the medium jet from the chamber of the jet pipe 56 to the sump 84 back through a continuation 83 of the inlet channel 82.

Guide devices are provided to enable the driver to that it aligns the jet pipes with any of the inlet ports by scanning or sensing. the The guide means of Figure 2 includes a guide plate 86 attached to the control panel 67 and having a pair of guide openings 87, 88 through the control shafts 58 and 60, respectively protrude. As can be seen from Figure 4-, the guide opening is 87 generally rosette-like or cloverleaf-shaped and has four spherical ßücksprege 89 on, the determine the limit positions of the circular handle shafts 58, when the nozzle of the jet pipe 52 with its four inlet openings is aligned. The upper and lower setbacks of the guide opening 87, as shown in FIG. 4, determine the alignment of the jet pipe with the respective inlet openings 34a and 35a 3 and the laterally opposite recesses of the same opening determine the orientation of the same Jet pipe each with the inlet openings 38a and 37a. The indentations 90 between the recesses 89 do this return the nozzle to its centered position when this is shifted from one inlet opening to another, thereby accidentally flowing into an unintended to prevent opening while moving.

The guide opening 88 for the control handle 60 is cross-shaped and has generally rectangular recesses or bumps 91 animal, which are dimensioned so that they

- • " Can accommodate handle shaft 60 with a square cross-section.

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namely for the jet pipe 56 and these are arranged in such a way «, that they with the nozzle of the jet pipe 56 with each of the four inlet openings are aligned or aligned. The cross-shaped opening 88 acts in the same way as the rosette-shaped one opening 87 to prevent accidental flow into an inlet opening when moving between other such to prevent openings.

As mentioned earlier, in certain applications it may be desirable to divide the speed component or pressure between two inlet openings, for example if it is desirable to actuate both the valve 25 and 27 at the same time. Under these circumstances, a modified guide plate would be provided which has a diamond-shaped guide opening 94, a section of this plate being shown in FIG the openings 34b and 57b in a position 73b ¹ without first returning to its neutral position. In the La ^ e 73b 'of the ktruklrohres according to Figure 8, the pressure or the ^ e-raw wind thickness of the medium jet would then actuate the valves Z ^r j and 27 of the Fi ^ ur 2 simultaneously in order to lower a load on the Ciabein and to tilt the box 16 forwards at the same time.

'According to Figure 9, the spacing and arrangement of the inlet openings allow 98 moving the otrahlrohröffnuhg 100 'into a aligned position with any of the many inlet openings, from the centered neutral position, the jet not entering any other of the inlet openings. If so desired is, the nozzle opening 100 of Figure 9 can also the Divide the flow between adjacent inlets in a pool, by providing a smaller spacing between the inlet ports in each row or by one, than others . It is possible to have larger openings or larger nozzle openings

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provides. , *>

Figure 6 illustrates a jet pipe controller similar to that of Figure 2 which is used in exactly the same manner can be, as the control device of Figure 2, and both valves 25, 2? of the lifting hedium circuit 23 of the vehicle to operate. The jet pipe control device of Figure 6 differs from that of Figure 2 only in the constructive details, but not in the mode of operation.

According to FIG. 6, a pair of jet pipes 110, 112 are arranged within a common housing 114. Because the details Both jet pipes 110 and 112 are identical, only the jet pipe 110 needs to be described further. The jet pipe includes an enlarged spherical portion 115? the for universal movement within a complementary socket section of the cylindrical insertions 116, 118 of the Radiant tube housing is arranged. As in the exemplary embodiment According to FIG. 2, the jet pipe 110 forms an outer extension of the shaft or actuating lever 120 of a manual control handle 122, which is arranged on the driver's cab of the lifting trolley in FIG. 1 in the same way as the control devices in FIG can be.

Medium at low pressure is fed to the jet pipe 11.0 through a Inlet channel 124 supplied, which extends transversely through the spherical section 115 of the oil jet 110 and there with a axially extending channel 126 crosses which leads to the opening 127 of the jet pipe. The nozzle opening 12? is within a Medium chamber located, which has a slightly concave end. , surface 128 onweiäb, which with a row of entrance openings , indicated generally at 150 and can be arranged in the same way as described with reference to FIGS. 3, 8 or 9. Form the inlet openings the inlet ends of iledium channels 132 leading to the control

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direction, which by means of the pressure or medium jet is to be actuated, this jet emerging from the jet pipe. An outlet channel 1.34 leads from the medium chamber of the jet pipe 110 to a swamp (not shown). A second outlet channel 135 is provided to remove any medium that enters a rear Tree 136 behind the spherical section 115 of the jet pipe escapes to divert into the sump. However, it will Penetration of the medium into this space by means of an O-ring seal 138 βμΐ one. Kept to a minimum. A second O-ring seal 139 prevents penetration from the inlet opening into the jet tube chamber and along the interface between the cylindrical insert 116 and the jet pipe housing 114.

A continuation 140 of the inlet channel 124 leads; through the housing 114 into the jet pipe 112. A continuation is used in a similar manner the outlet opening 134 for returning the medium from the medium chamber of the jet pipe 112 back to the sump.

The jet pipe 110 is spring-centered in its neutral position with the aid of a helical spring 144 and this spring surrounds the Control shaft 120 within a space 145 which is defined by the housing 114 and the cover plate 146. An elastomer shoe or jacket 148 forms a seal between plate 146 and nozzle housing 114. The mantle. surrounds the Control shafts 120 of the jet pipes 110, 112 and surrounds them in a press fit in order to prevent the pressurized medium from passing along the control shafts. ·

Another difference between dom nozzle and nozzle control of Figure 6 and that of Figure 2 consists in that the jet pipe guide device is provided in the control device of FIG. 6 as part of the jet pipe housing. In the control device according to FIG. 6, the cylindrical housing insert 116 inner side walls 150, the limit the chamber within which the nozzle section of the

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Jet pipe 110 is located. These walls also serve as guide surfaces for the jet pipe to align the nozzle opening 127 with its various inlet openings for your sensing to enable. The walls 150 of the housing insert are shown in FIG. 7 116 four spherical recesses 152, see above that a cloverleaf-shaped opening is provided, similar to that the guide opening 87 in the guide plate 86 of the FIG. 4. Of course, this assumes that the jet pipe 110 has four inlet openings 3 ^ c, 35c, 37c, 38c, which in the End surface 128 are arranged in the same way as the inlet openings 34a, 35a, 37a, 38a for the jet pipe 52 in Figure 2. The jet pipe guide of FIG. 7 is the one in the housing is designed, provides the same functions as the guide plate 86 of Figure 4 and enables the driver to Align the jet pipe with any of the inlet openings without having to look at the control device and without that medium is introduced into an undesired inlet opening when he moves the jet pipe. The housing guide can also be provided in the form of a cross, specifically corresponding to the cross-shaped guide opening 88 of FIG. 4, in particular when the nozzle section of the jet pipe has a rectangular cross section. There is also the possibility that the walls of the jet pipe housing delimit a diamond-shaped recess, similar to that of FIG in connection with similarly proportioned and adjusted inlet openings, in order to cool down the possibility of dividing the flow or jet between two adjacent inlet openings, as described earlier.

In the exemplary embodiment according to FIG. 2, the medium, which is at a relatively low pressure, acts directly as a force on the opposite ends of the valves 25 and 27 to drive or operate them in the desired direction. There is also the possibility that the pressure from a jet

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ruLx · al: oine iu / ifi (each ^ en the spring 1G1, 165 of a valve 16C acts to UXU the iietx \ iub de j valves, as shown in Figure 1ü ... odalize. Dex> Pressure would then be exerted on the spring by means of the * olxöu.unijökanäle 1611, 164 überex'tx ^ ayen wex "den, the ubiquitous u; id Betriebsamässio iuit are connected to a jet pipe, wit; a uex'jenirjen, which are shown in Figures 2 or 6.

^ UIJ "jyatem vex after 2 turns" a kti'ah.lrohr 52 in the form of e II k-iX 'Verstäx'kersteuex'einx'ichtung or a hydraulic it-eiaiü where the ^Di% uck odex · the speed of a Mediums- , which is at a relatively low pressure, is used to control the flow of the medium in a high pressure circuit through the valves ZZ- and 27. It can, however, have the same effect as a dix-ect Control means are used to actuate a hydraulic motor, such as the hydraulic cylinder 16 of the door 11, by then directing the sensor directly to the ends of the cylinder lying on top of the reef. ; ·. ¹ - via the üti-ömuusskHiiäle 163, 1>'J connects.

l ^ .iv iietriebswfc'it'e of the ijtraLlroni'hteuei'einrichtung should now untex * Reference to the execution furni iipch Figux · 2, which is in the Anhebekax'x'en who is fi ^ ux * 1 eiii ^ ebisut, deserve to wexuen. Jiei self-centered bteuerhandgx'iffen 62, 64, which are therefore in ihx'eu The medium flows from the pump 40 dux'oji the inlet aß / 8 to the jet pipes and then into the iiediumskaiumex-n 48, without going into the ovaries of any of the K; .noses penetrate, and is then carried by the stump through the outlet channel 82 returned. Thus, the valves 25 and 27 remain in their spring centered neutral positions as shown. In these The lifting cylinder 19 and the tilting cylinder 21 remain unactuated.

When the driver moves the operating lever 62 to the top position or uppermost recess of the guide opening 87 of Figure 4 pushes, the nozzle opening 75 arrives in an aligned position with the un-

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first inlet opening 35a of Figure 3, so that a medium jet enters the channel 35, and this channel the pressure of the medium to the right end of the lift valve 25 of the. Figure 2 transmits so that this valve is moved to its extreme left position. In this position, the valve 25 allows the medium that is at high pressure, from pump 42 to the left end of the lifting cylinder 19 flows, so that this cylinder is extended and thereby the load forks 18 and any load these forks is lifted. By returning the control lever of the nozzle to its neutral position, the load on any Height can be maintained.

By moving the lever 62 vertically downwards, so that the shaft 58 is in the lower recess 89a of the guide opening 8? reaches the nozzle with the uppermost inlet opening 34a aligned so that pressure of the jet through channel 34 is transmitted to the left end of the lifting valve 25, so this valve is shifted to the right. In this valve position the medium flows at high pressure to the opposite end of the lifting cylinder 19, so that the forks and those on it Load is lowered.

When the actuating lever 62 is released, the control device reverses by itself into its spring-centered neutral position due to the pressure of the elastic plug 76.

When moving the lever 58 to the left in Figure 4, so d ^ ß the Shaft into the left recess or recess 89b of the guide opening 8? reaches, the nozzle opening is aligned with the inlet opening 37a and the pressure of the medium is via the channel 37 to the left end of the tilt valve 27. The pressure of the. Medium moves this valve into its extreme right position, with medium under high pressure to the left end of the tilt cylinder 21 in Figure 2 can flow, the cylinder is extended · and

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the mast 16 is tilted forward.

The mode of operation of the embodiment according to FIG. use on the hydraulic system of Figure 2, operates in the same way as previously described.

From the foregoing description it appears that the use of the hand-controlled nozzle creates the possibility of directly using various lifting functions of a cart of a single jet pipe and with the help of an ' individual control lever. The manual control with the assigned guide device also enables a driver to align the nozzle with a desired inlet opening can move, whereby he does not observe the control device

th needs. The direct movement of the hand of the nozzle eliminated large cost, complicated mechanical and hydraulic or electrical systems, generally from moving jet pipes were used according to the state of the art.

The universal movement of the jet pipe is even advantageous, even if only two inlet openings are provided in order to divide the flow between the openings, the flow completely - dig into one opening, or separate the flow from both openings. There continues to be the neutral position of the nozzle opening is laterally offset from the inlet openings, a medium jet can be directed into any opening without this initially penetrates into the other opening. This feature is illustrated in Figure 9, where nozzle 100 leads to any of the inlet ports moved in a single row without first opening any of the other openings in this row, or, according to the other possibility, the nozzle or the nozzle jet can be divided between adjacent openings in a row, if so desired will.

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When moving the control lever 62 in the horizontal plane, namely to the right, the driver aligns the nozzle opening with the inlet opening 38a, so that the medium can then flow through the channel 38 to the right end of the valve 27 and the valve is transferred into his extreme left position in FLgur 2 is shifted »This has the effect that medium pulls back the tilting cylinder 21 under great pressure and thereby the mast 16 is tilted backwards.

The mode of operation of the embodiment of FIG. 6 in connection with the hydraulic system of FIG. 2 works in the same way Way as previously described.

From the foregoing description it appears that the use the hand-controlled nozzle enables direct control of various lifting functions of a cart and with the help of a single jet pipe and a single control lever = the manual control device with the associated Guide device also enables a driver to align the jet pipe with a desired inlet opening without he needs to watch the control unit. The direct ¥ on ™ manual movement of the nozzle eliminates the need for expensive and complicated mechanical, hydraulic or electrical systems, which were usually used to control the movement of jet pipes according to the state of the art "

The entire movement of the jet pipe is just as valuable, even if only two entry ports are provided, with the flow to be divided between the openings completely ·; to be inserted into an opening, or completely from both openings should be separated. Since the neutral one continues If the nozzle opening is laterally offset from the inlet openings, a medium jet can be introduced into any opening be, oire that initially another opening is actuated .respectively. the medium penetrates into this. This feature is in figure

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■ j illustrates where the nozzle 100 to any of the inlet ports can be moved in a single row without actuating any of the other openings in this Heike - or, as another possibility, the nozzle or nozzle jet can be divided between adjacent openings in a row if so desired.

oäintlicne recognizable in the description and in the drawings The technical details provided are essential to the invention significant.

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Claims (1)

20251H Claims 1. Means of breath device, in particular for actuating Vatilen, switches, motors and the like, characterized by a device (44, 99). which defines a series of at least three control signal openings (37; 34, 35 »98) which lead to a device (25, 27) to be controlled, the axes of these openings being arranged so that they come to lie in more than one plane , further by a jet generating device (52, 56; 110, 112), a holding device (115) for holding the jet generating device for universal movement and such that a medium jet ssen the rows of openings (37; 34, 35; 98) can be directed; means (120, 122) for selectively moving the means (52, 56; 110, 112) generating the nozzle jet into an aligned position with at least one of the openings (3/5, 34, 35; 98). 2. Hydraulic control system, characterized by at least two drive devices to be controlled (19, 21), an energy source for operating the drive device (19, 21) by at least two medium-actuated control devices (25, 27), one of which controls the energy supply from the energy source to the drive device (19, 21) by a device which includes at least three control signal flow channels (34, 35, 38), which lead to the control device (25, 27) through openings in the flow channels (34, 35, 38) which are close to one another are spaced, with the axes of these openings located in more than one plane, through a source (84) for the hedium under pressure, further through a jet generating device (52, 72) connected to the source for the pressurized medium is connected and can be moved in more than one plane to create a nozzle 009852/1492 2025IU forces the medium into any one or more of the inlet openings to be introduced, further by means (58, 62) for selectively moving the means (52, 72) generating the nozzle jet into an aligned position with one or more of the inlet ports at a time, the one generating the jet Device (52, 72) controls the operation of at least two drive devices (19, 21). 3. Industrial trolleys with a driver's cab and a device (FIG. 1) for handling loads, a control device for actuating the device for handling the loads, characterized by a device (15) which generates a jet of a medium and which is arranged at the driver's cab (12) is and is located away from the control device (25, 27) by a device (32) which defines a plurality of flow channels (35> 38, 34-, 37) and the device (15) generating the nozzle jet with the Control device (25, 27) connects and through a device (Figure 2) for selectively moving by hand the device (52, 72) generating the jet, so that this device with at least one of the flow channels (34, 35, 38) at a time can be aligned and a medium can be directed to the control device (25 »27) in order to thereby put the control device into operation, so that the device (FIG. i) for handling loads b is operable. 4 ·. Jet pipe control device, characterized by a device (25 »27) ^{to be controlled, at least two flow channels (3 2} I-, 35» 37, 38) which lead to the device (25 »27) to be controlled and these flow channels have at least two inlet openings which are located close to one another and have openings generally in the same direction, further by means of a medium jet generating means (52, 72) having a nozzle opening (73) which is generally towards the inlet openings 009852/1492 shows, further through a holder (69, 76) that holds the nozzle jet generating device (52, 72) in the sense of a movement in more than one plane and in a way that that an alignment of the nozzle opening (73) with each of the openings is possible and the nozzle jet opening (73) in directions transverse to the direction of alignment between any two openings of said openings is possible so that the nozzle opening (73) can be aligned with each of the two openings without first in an aligned position with any of the to be able to reach another opening aa » 5. Control device according to claim 4, characterized by a Device (76; 144) which fixes and determines a neutral position of the nozzle opening (73), this position not being connected to the inlet openings is located aligned or runs and that this position laterally from the aligned position of at least two of the .openings is offset. 6. Apparatus according to claim 4, characterized in that the device to be controlled (25 _} 27) is located at a location which is remote from the device (52, 72) generating the nozzle jet. 7. Apparatus according to claim 4, characterized in that & ß the Bracket (69j 58, 62) for moving the nozzle jet generating Device (52, 72) has a hand-operated handle (58, 62). 8. Apparatus according to claim 7 »characterized in that a« Guide device (Figure 4} 8) is provided to the movement the nozzle jet generating device (52, 72) in an aligned position with the openings and for delimitation the movement of the nozzle jet generating device (52, 72). 8 5 2/1492 BAP ORtOtNAL j. V..i'1'iciitung "according to claim 4, characterized in that a a jet of medium emerging from the nozzle opening (-75) does not hit the inlet openings. 10. Performing according to claim 4, characterized by a housing vL · -; 1 Ό, since a cavity (48, 150) defines in which the nozzle. ■ • on opening (73; 127) is arranged or received and which has the opening openings, further through inlet channels (78, 80; 124) that by the cattleUuse (ix); 1 ^) in the jet generating device v.52, 72; 127) lead from a source for the medium under pressure, further through outlet channels (44, 46; ": - ^l u 1:!>» Which lead from the cavity (48, 150), further, through a device v / o; 144), which biases the jet generating device; (52, / 2; 127) to a neutral length in which the nozzle opening (75-127) is not in alignment with the inlet openings, further through a Device ν: & _Λ bP .; 120, 122) for moving the device vb2, 72, 127) generating the nozzle jet from its neutral position to a position aligned with one of the inlet openings, and further by means of iJichtmittel (1381 159) for prevention penetration of the medium from the housing (50). 11. The device according to claim 10, characterized in that the means for biasing the jet generating the jet Device (52, 72; 12?) And the sealing means consist of a compact elastic part (76) which is inside the housing (IX)) is arranged. 12. The device according to claim 11, characterized in that the inlet channels (78) with the device for generating the nozzle jet (52, / 2) are in flow connection through the elastic part (76). 009852 / U92 BATH ORIGINAL 20251H 13 · Device according to claim 9 »characterized in that the holder (69) is arranged inside the housing (50) and the device (52, 72) generating the nozzle jet in the sense a universal movement. 14. The apparatus of claim 13 »characterized © indicates that the bracket (115 »136) consists of a ball joint, the ball section (II5) of the bracket being integral with the Nozzle jet generating device (127) is formed, and that the inlet channel (124-) flows through the spherical section (115) through with the nozzle jet generating device (127) is in communication. 15. Vxrichtung according to claim 4-, characterized in that the Inlet openings are dimensioned and spaced relative to the nozzle opening (73) so that the jet generating the nozzle jet Device (52, 72) can be moved in such a way that the nozzle opening (73) sends a nozzle jet of the medium into at least two of the inlet openings can steer at the same time. 16. The device according to claim 4, characterized in that a guide device (Figure 4; 8) is provided, the one aligned position of the nozzle opening (73) with any of the Allows openings at a time and one aligned The position of the nozzle opening (73) between two adjacent openings prevented. 17. The device according to claim 10, characterized in that the housing (50) has walls which delimit the cavity (4-8) and for guiding and limited movement of the nozzle jet generating device (52, 72) are formed and the aligned position of the nozzle opening (73) to the inlet openings determined or determined. 009862 / U92 20251U 18. Apparatus according to claim 10, characterized in that the device (52, 72) generating the nozzle jet consists of an elongate jet pipe which extends into the housing (50) and within the cavity (48) at the nozzle opening (7?) that a device (58, 62) for moving the jet pipe ends is provided and that this device consists of a manually movable control shaft or shaft (58) and a Extension of the jet pipe that protrudes from the housing (50), is. 19. The device according to claim 18, characterized in that the ! Guide device (Figures 4; 8) for guiding the jet pipe nozzle opening (73) is provided in an aligned position with the inlet openings and that this guide device (87) between the housing (50) and the control shaft or Shank (58) surrounds to limit their movement. 20. The device according to claim 3, characterized in that the the nozzle jet generating device (52, 72) consists of an elongated jet pipe (80) which is a jet generating a nozzle jet Nozzle opening (73) has at one end that further the means for selectively moving the nozzle jet by hand generating means (52, 72) a manually movable shaft or a shaft (58) which protrudes in the form of an extension from the other end of the jet pipe (80). 21. The device according to claim 4, characterized in that the device for generating the nozzle jet consists of an elongated jet pipe (80), at one end of which the nozzle opening (73) is formed, that the other ¹ end of the jet pipe (80) one by hand has actuatable control shaft or shaft (58), which in the form of an extension, the Hohres (80) designed &t; is to move the nozzle opening (73) into alignment with the inlet openings. 009852 / U92 20251 U 22. The device according to claim 4, characterized in that the device to be controlled (25, 2?) At least two to be controlled Contains devices that further the inlet openings, which lead to the flow channels (34-, 35, 37, 38) to which to be controlled devices are connected, and that a device (Figure 4; 8) for directing the nozzle opening (° 3) selectively provided in alignment with the inlet ports is to operate one of the two devices (25, 27) to be controlled. 23 · Device according to claim 4, characterized in that the Nozzle opening (73) consists of a single opening and that the device (25, 27) to be controlled has at least two zu.steuierenden Devices includes that further the inlet openings consist of at least two inlet openings which are so sized and are arranged at a distance that the nozzle opening (73) between the two inlet openings can be arranged thereby a ukL single medium jet enters both of the two openings at the same time, that further the two openings each ^ u each of the two controlled devices (25, 27) lead so that the nozzle opening (73) for the operation of both control devices (25, 27) can be used at the same time. 24. The device according to claim 4, characterized by at least two hydraulic drive means (19, 21) to be controlled, a source of a medium under high pressure for actuating the hydraulic drive means (19, 21) through at least two flow-actuated valve devices (25, 27), one of which controls the flow of the medium at high pressure to each of the drive means (19, 21), further through flow channels (34 · 35), which consist of a first pair of flow channels and from one of the inlet openings only to one (25) of the Valve devices (25, 27) lead and further from a second pair of flow channels (32), which leads from the other of the inlet openings to the other (27) of the valve devices (25, 27), through a source (50) , 00-9862 / 1492 BAD ORIGINAt 202.51 TA for medium at low pressure, which supplies the jet generating device (52, 72), by a bracket (58, 02) for moving the jet generating device (! -2 ,? 2) into an aligned position with one of the openings at a time when a medium jet emerging from the medium jet generating device (52, 72). of the low-pressure medium can control the operation of the two electricity drive means (19 * 21) independently of one another. Device according to Claim 3i, characterized in that at least two of the devices for handling loads (, Figure Ό are provided, and that the control device consists of at least two control valves (25, 27), one for controlling the flow of the pressurized medium to each device (Figure Ό for handling loads in order to operate them, that further the plurality of flow channels (34, V? \ 37, 3 £ / consists of a first pair of flow channels (34-, 35), which generates the jet Means (52, 72) connecting to opposite sides of one (25) of the control valve means (25, 27j) to provide and interrupt the flow of the medium to one of the means for handling loads, further from a second pair (37, 38) consists of flow channels which are on the opposite sides of the other ν27) of the control valve devices (25, 27) are closed to the flow of the medium to the other of the devices To provide handling of loads and to be able to interrupt that further the first and second flow channel pairs (34, 35; 57, 38) have four inlet openings (34a, 35a; 37a, 58a) which are arranged grouped together and show generally to the device (52, 72) generating the nozzle jet that further the device (52, 72 ) has a single nozzle jet-forming opening (73) which points to the group of inlet openings (34a, 35a; 37a, 38a) that the holder (69) for the nozzle-jet generating device (52, 72) is designed so that a movement in several 009852 / U92 20251U - "28 The nozzle opening (73) of each of the openings (34a, 35a $ 37ft, "58a) is formed without first having to align the nozzle opening (73) that the medium jet from the individual BiisenSffanag (73) can control the operation of both control valve devices (25-27) and thus & © a B © M, © b of both devices two handling of loads and awar independently of each other. 26 · Device according to claim 15, characterized by guide devices (Figure 4 8), ie in the alignment of the nozzle opening (73) with any opening (34-a, 35a? 37a, - 38a) "to ir- - At a point in time it is possible and also an alignment of the Office opening (73) between any two adjacent öffaimgea. , 35a »37β» 3®a) can provide. 009852 / U92