DE8402975U1 - FORKLIFT WITH TRUCK AND TOWERS - Google Patents

Description

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Patent Attorneys * "*" * 4830 Suterslohi.VennstrsUe 9. Postfach 24

Telephone: (O 52 41) 130

Date PfsWhysUir. H.-J.StraUß UnserZefcben

Bielefelder kitchen machine and transport equipment factory

VOM BPAUCKE GMBH Telgenbrink

4800 Bielefeld 10

J ^ forklift truck with pallet truck and support truck ^ p The innovation concerns an industrial truck with a lift truck and

a support truck, wherein the lift truck has liftable and lowerable load -aufnahmendttel, the lift truck and support truck independently are movable and usable from one another and wherein the lift truck and support truck as a combination interacting with one another are reciprocal

3Q connection and lifting to a lowering level higher than the level of the Corridors enabled and the landing level can be driven under, at least in the end area.

Lifting industrial trucks above floor level 35

f ~ levels lying is a common problem, which is particularly important when goods transported by trucks \ and no suitable ones at the place of unloading or loading

Industrial trucks are available. In order to now entrain the truck with its loading level above the corridor To be able to load, a stacker truck is required, which is usually not available at the unloading location. For this reason

"Carry-along systems" have already been developed in which a high-lift truck with a double-acting lifting cylinder was attached to the truck. This is done in the simplest way Ψ due to the fact that the high-lift truck with lifted Lastaufnahrae-

means the rear of the truck drives under that the load engages receiving means in a receiving device and

f is determined if necessary and then by a wide 15 res "lowering the load suspension device" the lower part of the High lift truck and comes from below with the structure of the truck in contact. It goes without saying even that suitable devices are to be provided for fixing the industrial truck which is now connected to the truck and transportable by it.

From DE-OS 25 3o 634 an industrial truck consisting of a Pallet stacker with double-acting cylinder by means of which the load handling device can be both raised and lowered *, known on which a support device is provided. The stacker truck is used for transport with a truck with a raised Move the load handler to the rear of the truck and the front end of the load handler is on the loading level of the Truck lowered. Firmly attached after attaching or lowering Bred supports can then with MiVf * the applied load medium with further lowering, the underframe of the high-lift truck can be raised to the level of the truck level. There are two embodiments: In the first embodiment Is the support with a bridge that holds the load suspension device provided, in which the load handling equipment can be moved;

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in the second embodiment, the supports are provided with rollers

see. In both cases, the raised stacker can either, '■

on the back of the support or together with the rollable _: \

The support can be pushed onto the loading platform of the truck. The supports w S are then dismantled, retracted, folded up or the like. The truck can now leave on its loading area with the ^:

which high-lift trucks and the supports to the next place of the Se- or '

Drive unloading. ße1 of this way of lifting the pallet stacker |

Is it essential that the trimming device or parts of it are manually |

need to be raised.

The task of a generic industrial truck is derived from this to train so that there are no additional items on the truck directions are necessary that conventional forklifts or Pallet stacker with liftable and lowerable load handling devices can be used without additional machine elements, supports, Guides o. The like. Available or the devices must be geometrically adapted in some way and that high lift truck and support trolleys can be moved and used independently of one another; about that In addition, the support car should be easy to manufacture, stable, κ but be without a large net weight. In addition, the support car should be built in such a way that it is suitable for horizontal transport |

particularly suitable. ι

After the hiring, the task is solved by the license plate of claim 1.

The fork-shaped underframe allows this truck of the support car both carriages directed against each other to push. The means necessary for the coupling are provided on the support car: At least the ends of the load handling means of the lift truck can be inserted into them, with after Lifting of the support trolley by lowering the load handling device of the pallet truck, clamping by gravity

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entrance «The reception equipment is at a suitable height provided so that a lifting of the support car to at least just Above the lowering height possible and the load handling equipment of the pallet truck reach your deepest pitch in the process. Reach the highest position

the load handling equipment of the pallet truck at least when the Stlitzwagen is raised to just above the drop-off level,

Developments are given in that the column frame of the Support car, namely 1m area of the lower ends of the vertical ' strive or the first

Lower cross strut sleeves are provided in which the longitudinal struts of the underframe are held displaceably »with the cross-sectional shape and the cross-sectional area of each of these sleeves of the outer Corresponds to the shape of the longitudinal struts and accommodates them with a game that enables jamming, and with the ends of the longitudinal struts associated with the sleeves, preferably as an end plate have trained end stop. It is also proposed that the sleeves for slidably receiving the longitudinal struts of the Underframe of the support carriage are provided with a lock that blocks the displaceability of the longitudinal struts, preferably with locking cams that interact with the sleeve edge, the height the locking cam is chosen so that the relieving longitudinal struts when lifting the support carriage as a result of their play in the

Tilt the sleeves and the locking cam unlocks under the sleeve rim Hagen. In addition, it is proposed that the locks blocking the displaceability of the longitudinal struts are designed as resilient locking lugs with recesses in the longitudinal struts interact and from which by means of hand or foot operated Lever can be lifted out. Finally, it is suggested that within Each hill has a roller near the inner wall of the top chord, the roller being positioned in the area of the sleeve, in which the longitudinal strut pivots towards the lower chord when the load is removed and wherein the profile of the longitudinal strut T-shaped with at least protruding flanges are formed on the upper side. By This training makes it possible to use the higher level during the lifting process, for example the loading level of a truck to drive under and after lifting the support car by now he following lifting of the load handling equipment of the pallet truck and Ent load the longitudinal struts of the support truck to move this to enable the way to raise the support truck to above the drop level. In order to prevent an unintentional shift in a stressful state, locks are provided ₄ which act as locking cams or can be designed as locking lugs. The locking cams lock only in the loaded state and lie in front of the top chord or an abutment on the top chord of the Sleeve. The locking lugs also lock in the relieved state and interact with recesses in the longitudinal struts. For the best seren stabilization, it is useful to provide two diagonally opposite abutments so that in the loaded state Longitudinal struts are supported in the upper area and in the lower area. Corrosive and opposite to the abutments round bolts are expediently provided against which after relief, the longitudinal strut lays and so especially lightly move when the round bolts are rotatable. The lock remains due to the locking by means of locking lugs received when relieved, it must be triggered by hand or foot. It goes without saying that remote controllable

Means - hydraulic cylinders, lifting magnets and the like - can be provided

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can. For better mobility of the longitudinal strut in the sleeve the profile of the longitudinal strut can be T-shaped, wherein Flange protruding parts at least the top of the longitudinal strut exhibit. Inside the sleeve are rollers with a mustard axis attached, which grasp under these protruding flanges and on which these protruding splashes roll off when the longitudinal strut is moved. The LMngsstrebe can be used for better stability Double-T-ProfH, with the underside of the longitudinal strut with a protruding flange corrosponding to the top ver see 1st.

j It is also proposed that the means for introducing the load

! mounting means of the lift truck on the support truck as a plug-in shoe from «

are formed, the cross-sectional shape of the outer shape of the ; 15 corresponds to the load handling device and where the insert shoe corresponds to the

the front Επα \ * of the load handling device receives almost form-fitting. It is also proposed that the upper belt of the plug-in shoe for Has a visor nose towards the introduction side. In addition, will suggested that the insert shoe with a screwable K1emm Device for fixing the in the insert shoe on the column tube Most of the support carriage introduced front end of the lifting device of the lift truck is provided. Finally, it is suggested that the plug-in shoe on the column frame of the support carriage is designed symmetrically in the direction of insertion, with the load bearing taking means of the lift truck can be inserted into the symmetrical plug-in shoe from both sides. Ultimately, it is proposed that the means for introducing the load handling device of the lift truck on the support car, preferably its plug-in shoe, have a release finger and that the longitudinal claws of the lift truck with a FeststenvorriGhtung are provided, which can be triggered when lifting by interacting with the trigger finger and the again remote lift truck blocked at least in one direction of travel, preferably in the forward direction of travel of the lift truck. This is important if the Loading level of the truck there is a risk that the lift truck will roll back against the direction of insertion.

Through this design. ^. WftteM-.zuifrtiniMinVe «des Load handling equipment becomes a simple plug-in option achieved that is sufficiently certain to avoid the to absorb mutual stress. Serves for better insertion a visor nose which, in its simplest form, can consist in that the upper belt of the insertion shoe is extended against the insertion direction. With a screwable clamping device a game that interferes with lifting can be switched off. In which symmetrically designed plug-in shoe, the load handling equipment can be introduced from one side as well as from the other side. Since the width of the chassis of the lift truck is chosen so that the support truck is pushed between the claws the reverse direction of insertion offers advantages for some transportation problems. Since, after the pallet truck has been set down, it is often desirable to block the travel option in one direction of travel - for example when placing one on the loading level Trucks can move against the direction of travel -

Ib it is useful to have a locking device in at least one Provide a claw for the pallet truck. This driving pad, advantageous designed as a single-acting inclined brake lever, can advantageously by a release finger provided on the insert shoe be triggered because the claws of the lift truck when attached lifted pallet truck spatially in the immediate vicinity of the Ein plug shoes lie.

Alternatively, it is proposed that the longitudinal struts of the underframe of the support carriage are designed to be pivotable about a horizontal axis. This training allows the longitudinal struts after relieving the load by lifting with the lift truck, fold into a vertical plane; they are then in the immediate vicinity of the vertical struts and do not hinder the lifting.

It is further proposed that the wheel (s) or the roller (s) are designed to be steerable in the area of the fork base on the first lower cross strut of the column frame of the support car. 1st advantageous here that the steerable wheel / the steerable wheels or the steerable roller / the steerable rollers on the bottom is first

Cross strut of the support car's column frame as a single or

Arranged in the middle as a double set and in the middle by means of a trailing arm is / are hinged to the first lower cross strut. It is also proposed that the center pin of the steering wheel or the steerable wheel or roller set a swiveling handlebar is articulated and that on a further third cross strut of the Pillar frame of the support carriage an abutment for clamping reception of the pivoted handlebar is provided. Through this Form of training is achieved that the support car is easy to maneuver even if he is carrying a load, e.g. with the lifted Pallet truck must be maneuvered. The steerable wheels or rollers can also be arranged eccentrically, with the usual Way a steering linkage with axle-like approaches on the wheels or rollers and with a common steering saddle in the Are provided in the middle. However, a simpler steering is also available possible by means of trailing arms. The handlebar, which doubles as the The drawbar is used, with active steering on the steering saddle or directly on the wheel or roller set; with passive steering, for example by means of a set of trailing rollers, the handlebar is only a drawbar.

It is also proposed that the truck be one of support claws is below the load handler supported fork lift truck, in which the load handler by a certain amount over the Support or driving claws protrudes, this dimension being at least the diameter of the rollers or wheels plus the profile width the vet ikai struts correspond to the column frame of the support carriage. In contrast to the counterweight forklifts, which are safe to tip over within certain limits, the support claws take on a part here the load picked up by the load handling equipment. These length ratios ensure that the load bearing means of the pallet truck in the means for receiving this load acceptance means on the support carriage can be introduced without the support or driving claws in the area of the fork base of the support carriage provided wheel or roller sets come; In addition, this ensures that the load absorption middle of the pallet truck when it is set down on the set-down level

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is supplied to a second use. The longitudinal struts can thereby as a holder for loads, especially for palletized loads serve, which can be placed on the longitudinal struts by a pallet truck and taken up again by them. In this together hang it is proposed that the longitudinal struts of the fork-shaped Underframe of the support trolley can be extended telescopically to the front are. This extension option allows the support car can also be used as a means of transport, for example for oversized goods. It is not absolutely necessary that the front ends the telescopic extensions are provided with rollers; it is sufficient, when the extended telescopic parts can also support themselves against the rollers present at the original end of the longitudinal strut. To safely transport the goods placed on the longitudinal struts to be able to, it is advantageous that the profiles of the longitudinal struts of the underframe of the support carriage, preferably at their outer edges have laterally upstanding flanges, these flanges preferably in the area of the rear and the front ends of the Longitudinal struts are provided and these upstanding flanges are used to secure stored loads, for example pallets. keep, the dimensions expediently at normal Way to be handled or based on standardized pallet dimensions. With regard to the displaceability of the longitudinal struts is it is advantageous that the end faces of the upstanding flanges with the upper belt of the sleeve of the column gesture of the baby car in the sense the locking cam cooperate, the height of the upstanding flanges is chosen so that the total height of the longitudinal strut with upright flange at most equal to the inner clear height is the sleeve of the column frame. It is also suggested that that the upstanding flanges opening outwards at an angle angs places are. Through this training a positioning of Goods, in particular of paiettized goods possible, whereby the The width of the upstanding flanges is expediently adapted to the used or the standardized pallet dimensions that upright flanges opening outwards at 1m angle facilitate precise positioning when placing such pallets on the longitudinal struts.

10 protrudes beyond the end and therefore the support carriage when lifting »(after Moving or pivoting the longitudinal struts) can be guided past the end of the settling plane.

It is further proposed that the height of the upper edge of the longitudinal struts of the underframe of the support carriage is at most equal to the Lifting height of a known pallet truck is. By this measure, the support car

A preferred embodiment is given in that the longitudinal struts of the underframe of the support carriage are designed to be height-adjustable, with a hand-pump-actuated hydraulic height adjustment, as provided in conventional pallet trucks, being preferred. With this additional design of the longitudinal struts, an even better usability of the support car is achieved for independent use as a pallet truck. It goes without saying that DA i <in the longitudinal struts of a provided with a driving role Prat- | ze and the lifting rail located thereon are formed, with between | Claw and a lifting rail lifting member 1st mounted that via eccentric l_ trowel o. The like., Or can be raised via a 1st hydraulic height adjustment relative to the Fahrpratze. I.

A further development is given by the fact that the steering wheel or the ] Steering wheel set 1m Serelch of the first lower cross strut of the Stützwa- j

gens with a drive, preferably with a wheel hub drive?

see is. This development makes the support carriage to a self-propelled transport I.

Another development is given by the fact that the underframe of the support carriage preferably has two additional support wheels in the interior of the sleeves, the center distance of which over the floor is slightly larger than the wheel radius. These support wheels are particularly important when a wheel or a roller or a wheel set or a set of rollers are arranged centrally on the lower cross member of the column frame of the support carriage. When driving through curves the column frame inclines and its inclination is limited by the support wheels.

Another further development is given by the fact that the plug-in shoes strive at the upper end of the vertical of the column frame of the Support carriage are designed to be pivotable up about a horizontal axis and are preferably fixable in the pivoted up position. When using the support trolley as a pallet truck, they interfere Plug-in shoes protruding into the loading area during transport

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high loads. This bypasses the embodiment in which the plug-in shoes are swiveled up around a horizontal axis. Falling back is prevented by the fixing part in the swiveled up position «

A preferred embodiment is given by the fact that the lifting, lowering and, if necessary, travel drives as well as an existing locking device in front of direction of the lift truck are designed to be electrically controllable, the electrical command organ from its place Removable on the lift truck 1st and by means of a spiral cable or the like. the pallet truck is remotely controllable. When lifting the combination pallet truck and support truck to one level higher than that of the corridor it is necessary to control the movement sequences from the pallet truck. However, this also means that the operator's station for the control system is moved from one level to the other. In order to to be able to continue lifting without the operator of the has to change from one level to the other, the control is as Remote control trained. There is a wired control not absolutely necessary, they are also radio remote-controlled

Facilities possible. 20th

In a preferred embodiment, the support carriage consists entirely or mainly from suitable light metal alloys. This reduces the mass of the support carriage compared to the steel version; easier lifting of the support carriage is possible.

The special advantages of the lift / support carriage combination are evident In local goods traffic: While all equipment is usually available at the loading points, pallet trucks are often available at the unloading points, but in the rarest cases one closes Floor-level unloading from the loading area of the truck into the corridor the unloading point possible.

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The essence of the innovation is exemplified on the basis of FIGS described. Show it

the sequence of reciprocal lifting of Stutz and lift trucks according to the innovation; the lift truck in front view;

the pallet truck in side view; the support car in front view;

the support car in side view;

Detail of column frame with support car

steerable wheels;

Detail of column frame with support car middle) castor set;

Detail insert shoe with locking screw;

Detail plug-in lock with visor nose and locking release;

20 Figure 16 detail of the sleeve on the column frame;

Detail of the sleeve on the column frame -vertically cut;

Detail of the sleeve on the column frame -horizontally cut;

Detail roller bearing of the loaded longitudinal strut in the pillar frame sleeve - partially cut;

Roller bearing of the relieved longitudinal

³⁰ strut in column frame sleeve - partially

cut;

Cross-section through the sleeve with roller-bearing longitudinal strut - loaded.

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Figures 1-7 8th figure 9 figure 10 figure 11th figure 12th Fi gur 13th figure 14th figure 15th figure 16 figure 17th figure 18th Fi gur 19th figure 20th figure 21 figure

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j - The operational sequence shown in FIGS. 1 to 7 is as follows: The lift truck 10 should move from the hallway 9 to the loading area 3 of the truck 1 are lifted, with neither the truck 1 nor its loading area having special devices for picking up the lift truck 10. To drive over the pallet truck 10 In the loading space 2 of the truck 1, the loading flap S is opened. The lift truck 10 with at least the lifting and lowering movement effecting power supply 11 and the drawbar 12 has a chassis that consists of the steerable roller 13 and the to 10 the ends of the horse claws 14 provided roles 14.1. ,,. With the help of the drawbar 12, the lift truck 10 can be moved by hand.

A motorized drive for the steerable Ro11e / steerable wheel

! I is possible. The load handling device 16 is located in the vertical frame IS

guided vertically movable. The Stutzwagen 20 is used for lifting j 15 from vertical columns 21, which are combined to form a column frame by means of transverse struts, and longitudinal struts 25 are formed,

'with castors or wheels 26

• are provided and the ends of the longitudinal struts 25 castors 25.1

; exhibit. The longitudinal struts 25 are in at the lower end of the

ti kai strive 21 provided sliding sleeves 21.1 mounted. At the top ,; End of the vertical strive 21 plug-in shoes JO are provided.

\ To raise the support carriage 20 is brought into position that the

from the support or driving claws 14 or the longitudinal struts 25 formed chassis of the lift truck 10 and the support truck 20 are moved into each other, the load handling means 16 in the height of the input Plug sleeves 30 are brought. When they move into one another, the free ends of the load-handling means 16 are inserted into the plug-in shoes 30 introduced. After the insertion, the load handling devices 16 of the lift truck 10 are lowered, whereby the lift truck is supported lifts on the support car from the corridor. The right amount will be The lift truck is now pushed into the loading space 2 of the truck and, by lifting the support means, onto the level of the loading area 3 lowered, the loading area 3 now taking over the load. The now relieved support carriage 20 is lifted further the load suspension means 16 completely relieved and free of the

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Floor level 9. The longitudinal struts 25 are now in the sleeves moved until they have reached the position indicated by dashed lines. Now the rollers 25.1 are in a position that they can easily be moved past the loading flap 5; the The support carriage 20 can be raised above the level of the loading level 3 of the truck 1. Now the longitudinal struts brought back into position and the lift truck / support truck combination pushed so far into the interior of the truck 1 until the Loading flap can be closed. It goes without saying that the same sequence of movements is also possible with the longitudinal struts 25 pivoted up.

Figures 8 and 9 show the lift truck 10 in detail. On the Support or driving claws 14, which at their free ends with driving

, r rollers 14.1 are provided, the vertical column frame 15 rests, on which the central supply unit 11 with energy supply and Means for generating hydraulic pressure is provided, and its control via the removable control unit 19, which is connected to the central unit via a spiral cable 19.1

2Q will. A fold-down drawbar 12 enables maneuvering of the lift truck TO by hand. In the vertical column frame, a double-acting hydraulic cylinder 17 is provided, which over Chains 18 acts on a load-bearing plate 16.1 for the load-bearing means 16 of the lift truck. A limit switch 17.1 limits the Upward movement of the lifting device. In one "or in both Driving claws 14 are fixed devices 14.2 provided in the Embodiment from one to one transversely to the claw direction Hanging axis pivoting locking lever are made to a Certainly longer than the distance between the armpit and the plane of the plane 9 or Ab Setting plane 3 and 1n finding 1n at an angle to the plane stand, whereby the seated end face is beveled according to this angle and rests fully. The triggered festival

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At the free ends of the side members 25 there are castors 25.1, A drawbar 27 that can be folded up and in the folded-up state in a Klemmaufnähme 28 is lockable, allows a displacement by hand, expediently the tiller end as a handle 27.1 is designed.

The castors or bicycles under the column frame and their controllability are shown in FIGS. The - exaggeratedly inclined - Vertikai strive 21 have at their lower ends the sleeves 21.1, which receive the longitudinal struts - not shown here. The lower first cross brace 22 is provided with castors 26 which are individually arranged over the Steering linkage 26.1, 26.2 can be steered from a steering saddle 27.2 via the drawbar and steering drawbar 27. Another execution shape is given by a double roller 26, which is itself steerable. It goes without saying that the steerable double roller 26 can also be designed as a follower roller. With the central arrangement the rollers can be relative, especially when driving through quickly tight curves a centrifugal force-related inclination of the column frame to Side occur. Support rollers 29, which have no ground contact in the normal position, limit this tendency.

FIGS. 14 and 15 show the design of the plug-in shoe 30 at the upper end of the vertical pillars 21. As the free ends of the load Aufnahmemittei 16 inserted into the shoe 30 with play are, it is useful to set the La staufnahmemittei in the plug-in shoe with the help of a clamping device, for example a clamping screw 31. For easy insertion, it is advantageous to use the To extend the upper belt of the insert shoe 30, whereby a Nose 31.1 results, which the lift truck driver can easily aim at when the lifting device of the lifting truck is raised, and which is used for easy introduction of the lifting device. A trigger finger 32, with a locking device 14.2 in the area of the rollers 14.1 the support or driving claws 14 the lift truck 10 (all Figure 9) cooperates, releases when the lift truck is raised to the highest position

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Stell lever blocks any movement in a direction directed at the angle tip, whereby the angle between the Experience has shown that the locking lever and the plane are between 50 ° and 70 and depends on the material pairing Aufsetzfufl, Boden. In the rest position, the locking lever is raised and held in a clamping device from which he is in use pit the trigger finger 32 (Fig. 15) is released and falls into the locked position.

FIGS. 10 and 11 show the support carriage 20, the column frame of which is formed from the vertical columns 21 which have a first cross strut 22 near the lower end and a second cross strut 23 near the upper end. A central cross strut 24 can be provided. At the lower end of the vertical struts 21 sleeves 21.1 are provided in which the longitudinal struts 25 are movably mounted. Underneath the column frame formed from the vertical struts 21, castors 26 are provided, which can be designed as individual rolls or as sets of rolls or as wheels.

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this locking device so that the lift truck, which is pushed into the loading space 2 of the truck 1 in the raised position and is deposited on its loading level 3 (all figures 1 to 7) is put on with the locking device released. The Festste! 1 device is expediently designed so that it le diglich blocked in the direction of travel and so does not hinder the displacement of the pallet truck after lifting and lowering the support truck on the loading level against the direction of travel of the pallet truck.

; 10 FIGS. 16 to 21 show the design of the sliding hulls 21.1 : at the bottom of the vertical strive 21 and interact with

j. the displaceably guided in the sleeve 21.1 longitudinal strut 25. Um

ψ to avoid unintentional pushing through of the * longitudinal strut 25,

is its end associated with the sleeve 21.1 with an end plate 25.2 provided that prevents this pushing through. In order to further prevent accidental insertion of the longitudinal strut 25.1, is in In the area of the upper belt of the longitudinal strut 25, a locking cam 33 is provided which is at a distance from the end plate 25 that is the length corresponds to the sleeve. This locking cam 33 is expediently designed so that it engages over into the interior of the sleeve and a Support forms, which is a counter support to support 34 on the diagonal represents opposite end of the longitudinal strut. Under pressure are both on the sleeve wall; the longitudinal strut 25 relieved, "tilts" the longitudinal strut in the sleeve, so that the locking cam 33 can be pushed through the sleeve. Another lock Figures 17 and 18 show this possibility; here is a pawl 36 is provided, which is brought back by a return spring 36.1. The pawl itself engages through a breakthrough 21.1 in the Side wall of the sleeve and acts with a recess 25.4 in the lateral wall of the longitudinal strut 25 together. F. in handle 25.3 on the end plate 25.1 of the longitudinal strut allows the relieved longitudinal strut to be moved easily. In the loaded state, the longitudinal strut is supported against the abutment 34, which - the longitudinal strut 25 does not need to tilt with this lock - can also be welded to the sleeve. Sleeveless round

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Bolts 35 make it easier to move the relieved longitudinal strut 25, it being advantageous for these round bolts 35 to rotate at the same time. One Another embodiment is shown in FIGS. 19 to 21. Here is the one Longitudinal strut designed as a double T-Prof11, with the middle profile at least 1m area of the top of flanges 25.4 is towered over. In this embodiment, the rafter is used for the Longitudinal movement of the end plate 25.1 and the locking notches 33 are provided, while the abutments 34 are in the HU1se, against which supports the loaded longitudinal strut 25 (Fig. 19). When the longitudinal strut is relieved (Figure 20), the lower ones lie down Edges of the upper protruding flanges 25.4 against rollers 21.3 provided on both sides L in the interior of the sleeve, over which they can be pulled unrolling by means of the handle 25.3. \

FIG. 22 shows the situation where a lift truck 10 with its load handling device removes a load 8 present on a pallet 8.1 Has picked up loading level 3 of the truck 1 and removes it from the loading space 2 of the truck; the remaining reference numerals correspond to those of FIGS. 1 to 9. The load 8 received is lowered and transferred to the pen carriage 20 as shown in FIG. It is essential that the lifting device 16 of the lift truck 10 is below the level of the upper edge of the longitudinal struts 25 of the Support car are lowered, whereby the longitudinal struts 25 the f

Take over load 8 on pallet 8.1. The support carriage 20 can now \

like a normal horizontal industrial truck for area transport | port can be used, whereby the transport is usually due to |

constructive details, such as larger wheel or roller diameter | Ser <fa there is no need to drive under pallets, elimination of the considerable masses of vertical frame and drive, is lighter than with cooking pallet truck. It goes without saying that the Reversal, namely the area transport with the support car to Truck, the pallet with the load is taken over by the pallet truck and the load is shifted onto the truck in the reverse order. To the pallet 8.1 positioned on the

To be able to set down longitudinal struts 25 of the support carriage 10 are

Speaking of Fig. 25 - a section X-X, Fig. 24 - upstanding flanges 37 are provided on the outer seldom of the longitudinal struts 25, which open outwards upwards. If a load is set down offset from the exact positioning, the pallet is 8.1 of these Flanges 37 out in the correct position and there for the Transport fixed.

Claims (1)

15 20 25 30 35 1.Fork conveyor with a lift truck and a support truck, wherein the lift truck has liftable and lowerable load handling devices, wherein the lift truck and support truck can be moved and used independently of one another, and where the lift truck and support truck interact as a combination with each other and provide reciprocal support and lifting to a lowering level higher than the level of the corridor and the lowering level can be driven under, at least in the end area, characterized in that a reversible drive (17) or two separate counter-rotating drives is or are provided for lifting and lowering the load-handling device (16) of the lifting truck (10), that the Stützwaqen (20) has a fork-shaped underframe with longitudinal struts (25) connected to one another at one end by a first cross strut (22J), the free ends of the longitudinal struts (25) with wheels or rollers (25.1 and the first cross strut (22) with at least one wheel or roller (26) are provided and wherein preferably the clear width of the fork formed by the longitudinal struts (25) is at least equal to the outer width of the load-bearing means (16} of the lift truck (10), and that a column frame arranged at right angles to the undercarriage with one or more vertical struts (21) is provided 1st, the lower ends of which are connected to the longitudinal struts (25) and at the upper end of which means are provided for introducing the load-bearing means (16) of the lift truck, with several vertical struts IU. t (21) at least by a second cross strut (23) are connected to one another at or near their upper ends, preferably aiming at the height of the vertical (21) of the support carriage (20) essentially equal to the lifting height of the in a vertical frame (15) of the lift truck (10) guided load suspension device (16) is. 2. Industrial truck according to claim 1, characterized in that on the column frame of the support carriage (20) in the Strive area of the lower ends of the vertical (21) or the first lower transverse. strut (22) sleeves (21.1) are provided in which the longitudinal struts (25) of the underframe of the support carriage (20) are held displaceably, the cross-sectional shape and the cross-sectional area of each of these sleeves (21.1) being the outer shape of the longitudinal struts (25) and this with a jamming enabling Absorbs play and wherein the end of the longitudinal struts (25) assigned to the sleeves (21.1) is preferably used as an end plate (25.2: have a trained end stop. 3. Industrial truck according to claim 2, characterized in that the sleeves (21.1) for slidably receiving the longitudinal struts (25) of the underframe of the support carriage (20) with a displaceability of the longitudinal struts (25) blocking lock, preferably with locking cams cooperating with the sleeve edge (33) are versehön, the height of the locking cams is selected so that the longitudinal struts (25) relieved when lifting the support carriage (20) tilt as a result of their play ir, the sleeves (21.1) and the locking cams (33) unlocked under the Sleeve edge lie. • 11 « I.
I Il 4. Industrial truck according to claim 3, characterized in that the $ · the displaceability of the longitudinal struts (25) blocking locks, · ι are designed as resilient locking lugs (36) with recess | gen (26.4) cooperate in the longitudinal struts (25) and from which they can be lifted out by means of hand or foot-operated levers. i 5. Industrial truck according to claim 2 * 3 or 4, characterized in that within } ■ half of each sleeve (21.1) near the inner wall of the upper belt one. _; Roller (21.3) is provided, the roller being positioned in the area of the sleeve (21.1) in which the longitudinal strut (25) is pivoted towards the lower chord under load and the profile of the longitudinal strut (25) is T-shaped with at least the top protruding flanges (25.4) is formed. 6, industrial truck according to one of claims 1-5, characterized in that the longitudinal struts (25) of the underframe of the support car (20) are designed to be pivotable about a horizontal axis. 7. Industrial truck according to one of claims I - 6, characterized in that the means for importing the load-bearing means (16) of the lift truck (10) on the support carriage (20) are designed as a plug-in shoe (30), the cross-sectional shape of the outer shape of the Load suspension means (16) corresponds and wherein the plug-in shoe (30) receives the front end of the load suspension means (16) almost positively. An industrial truck according to Claim 7, characterized in that the upper belt of the insert shoe (30) has a visor nose (30.1) on the feed side. 9. Industrial truck according to claim 7 or 8, characterized in that the insert shoe (30) with a screwable Kiemmvorrichtung (31) for fixing the in the insert shoe (3Q) on the column frame of the support carriage (20) introduced front end of the load-bearing means (16) of the Lift truck (10) is provided. 10. Industrial truck according to one of claims 7 - 9, characterized in that that the plug-in shoe (30) on the column frame of the The support trolley (20) is designed symmetrically in the insertion direction, the load-bearing means (16) of the lifting truck (10) being insertable from both sides here into the symmetrical insert shoe.
30th tO ιι, industrial truck according to one of the preceding claims, characterized in that the means for introducing the load-bearing means ( ¹⁶ ) of the lift truck (10) on the support carriage (20) * preferably its insert shoe (30) has a release finger (32) and that the longitudinal claws (14) of the lift truck (10) are provided with a locking device (14.2) which can be triggered when lifting by interacting with the trigger finger (32) and which blocks the lift truck set down again in at least one direction of travel, preferably 1n forward direction. 12. Industrial truck according to one of the preceding claims, characterized * that the wheel / wheels or the roller / foils (26) in the region of the fork base on the first lower cross strut (22) of the column frame of the support carriage (10) is designed to be steerable are. 35 44 * ** i I Flurförderze.ug according to claim 12, characterized in that the steerable «wheel / the steerable wheels or the steerable ifol1 the steerable rollers on the first lower cross member (22) : |. of the column frame of the support carriage as a single or double V 5 set arranged in the middle and attached in the middle by means of a trailing arm ^! the first lower cross strut (22) are articulated. f 14. Industrial truck according to claim 12 or 13, characterized in that that on the center pin of the steering wheel or the steerable wheel or roller set (26) a pivotable handlebar (27) is hinged and that on a further third cross' strive (24) of the column frame of the chariot (20) Abutment (28) for clamping reception of the pivoted up Handlebar (27) provided 1st. 15th 15 «FIurförtftrzeuq according to one of the preceding claims, characterized in that the lift truck (10) is a fork lift truck supported by support claws (14) below the load handling device (16), in which the load handling device (16) is a certain amount over the support - Or driving claws (14) protrudes, this dimension corresponding to at least the diameter of the rollers or wheels (26) plus the profile width te of the vertical struts (21) of the column frame of the support carriage (20). 16. Flurförderfahrzeuq according to one of the preceding claims, characterized in that the height of the upper edge of the longitudinal struts (25) of the underframe of the support carriage (20) is at most equal to the lifting height of known low-lift trucks. 17. .Forklift truck according to one of the preceding claims, characterized in that the longitudinal struts (25) of the fork-shaped underframe of the support carriage (20) can be extended teleskopartSg to the front. 18. Industrial truck according to one of the preceding claims, characterized in that the profiles of the longitudinal struts (25) of the base frame of the supporting carriage (20) preferably at their outer edges laterally upstanding flanges, these flanges preferably in the area of the rear and p; · the front ends of the longitudinal struts are provided. I. 19. Industrial truck according to claim 18, characterized in that the end faces of the upstanding flanges interact with the upper flange of the sleeves (21.1) of the column frame of the support carriage (20) in the sense of the locking cams (33), the height of the upstanding flanges and the longitudinal struts ( 25) is at most equal to the inner clear height of the sleeves (21.1) of the column frame. 20 'industrial truck according to claim 18 or 19, characterized in that the upstanding flanges are set at an angle, opening outwards. 21. Industrial truck according to one of the preceding claims, characterized in that the longitudinal struts (.25) of the underframe of the support carriage (20) are designed to be adjustable in height, preferably a hand-pump-operated hydraulic height adjustment being provided as in conventional pallet trucks. 22nd Industrial truck according to one of the preceding claims, characterized in that the steering wheel or the steering wheel set (26) is provided with a drive, preferably a wheel hub drive, in the area of the first lower cross strut (22) of the support carriage (20). 23. Industrial truck according to one of the preceding claims, characterized in that the underframe of the support car (20) preferably in the interior of the sleeves I 21.1) has two additional support wheels (29) whose center distance over the floor (a) is slightly larger than the wheel Radius. 24. Industrial truck according to one of the preceding claims, characterized in that the insert shoes (30) at the upper end of the vertical struts (21) of the column frame of the support carriage (20) are designed to be pivotable about a horizontal axis and can preferably be fixed in the pivoted position. 25. Industrial truck according to one of the preceding claims, characterized in that the lifting-lowering and optionally travel drives (11) and existing locking devices (14.2) of the lifting truck (10) are designed to be electrically controllable, the electrical command element (19) from its place can be removed from the lift truck and the lift truck (10) can be remotely controlled by means of a spiral quay (19.1) or the like. 25 * Industrial truck according to one of the preceding claims, characterized in that the support carriage consists entirely or predominantly of suitable light metal alloys.