WO2012037926A2

WO2012037926A2 - Device for mounting a profiled load-bearing fork

Info

Publication number: WO2012037926A2
Application number: PCT/DE2011/001709
Authority: WO
Inventors: Otmar Kaup
Original assignee: Kaup Gmbh & Co. Kg - Gesellschaft Für Maschinenbau
Priority date: 2010-09-10
Filing date: 2011-09-09
Publication date: 2012-03-29
Also published as: EP2614028A2; DE112011104262A5; DE102010044954A1; EP2614028B1; WO2012037926A3

Abstract

Device (1) for mounting a profiled load-bearing fork (2), which device can be fitted in a front‑end section of a fork positioner, in particular a lifting vehicle, comprising: at least one substantially horizontally arranged beam (3), in particular a T‑beam, at least one profiled guide member (4), in particular a C‑shaped profiled guide member, which is arranged on the beam (3), in particular the T‑beam, so as to be displaceable in a longitudinal direction (5), at least one shaft (6) which is fastened, substantially parallel to the longitudinal direction (5), to the profiled guide member (4) in the region of an outer end (7), and on which shaft the profiled load-bearing fork (2) is arranged so as to be displaceable in the longitudinal direction (5), at least one travel-limiting device (16) which restricts the longitudinal movement (5) of the profiled load-bearing fork (2) on the shaft (6), and at least one corresponding displacement cylinder (9) which acts on the profiled load-bearing fork (2) and can displace said fork in the longitudinal direction (5) and is supported, at least indirectly, on the beam (3).

Description

P r o u s c o n t i o n c o m e n t i o n e s a n n e a n d a n g e a n g e a n d ia s p o r t i n s

The invention relates to a device for receiving a fork carrier profile according to the preamble of claim 1.

From DE 36 32 031 A1 a front attachment with two forks for forklift is known, in which two counteracting hydraulic raulikzylinder for the transverse displacement of the fork carrier plate are arranged on a fork carrier plate. This fork carriage plate in turn carries two antiparallel-acting hydraulic units, with which the forks are displaceable together and at a fixed distance from each other on the fork carriage plate. This makes it possible to move the respective outermost of the forks to the respective end of the fork carriage plate whose length corresponds to the width of the forklift. The device requires so-called telescopic cylinders because of the stroke lengths, which are not only expensive, but also produce very strong thrust forces that must be limited by pressure relief valves. Nevertheless, however, the forks are not to bring in a contact position to each other.

DE 36 39 933 shows a front attachment for attachment to a lifting vehicle with four forks, of which the two outer can be moved up to the interior. DE 36 39 933 A1 discloses a further development of DE 36 32 031 A1, in which a total of four forks are arranged on a two-piece fork carriage plate, all of which are relatively displaceable, so that it is possible, optionally a normal Euro pallet, a small pallet or two small pallets next to each other. Also this device requires because of the stroke lengths so-called telescopic cylinders, which are not only expensive, but also produce very strong shear forces that must be limited by pressure relief valves. But even here, the forks are not to bring in a contact position to each other.

Bestätigungskopiel DE 44 33 050 A1 shows a front attachment for attachment to a lifting vehicle, are moved in each case two right and left fork carriage with a hydraulic cylinder.

From DE 20 2010 002 928 U1 an attachment for industrial trucks is known in which two horizontal sliding guides and hydraulic cylinders are attached to a frame, the horizontal piston rods act on the vertical legs of forks above and below, which are positively connected to the sliding guides. The horizontal displacement of each fork corresponds to the maximum piston stroke. The minimum distance of the forks corresponds to the length of the hydraulic cylinder less the lengths of the two overlaps of piston rods and width of the forks. A close merging of the forks to a mutual contact is not possible.

The disadvantage is that the forks can only reach a limited width, which is regularly determined by the width of the attachment.

The object of the present invention is to provide a device which enables safe operation with high lateral efficiency in a simple manner.

The object is achieved by a device for receiving a fork carrier profile, which is to be mounted in a stem on a Zinkenverstellgerät, in particular a lifting vehicle,

full:

at least one substantially horizontally arranged carrier, in particular a T-carrier,

at least one guide profile, in particular a C-shaped guide profile, which is arranged displaceably in a longitudinal direction on the carrier, in particular the T-carrier, at least one axis which is fastened to the guide profile in the region of an outer end substantially parallel to the longitudinal direction and on which the fork carrier profile is arranged to be displaceable in the longitudinal direction,

at least one limiting device which restricts the longitudinal movement of the fork carriage profile on the axle,

at least one corresponding displacement cylinder which acts on the fork carrier profile and this can move in the longitudinal direction and is supported at least indirectly on the carrier.

By the device according to the invention, a desired opening area can be achieved purely hydraulically without fork adjustment by hand. From the seat, for example, the driver can achieve an opening range with AK forks of 285 - 1,045 mm with, for example, 135 mm wide forks. With the aid of the upstream axes, an additional stroke of, for example, 100 mm is achieved per side. The device according to the invention is suitable for receiving a fork carrier profile which is to be mounted in a stem on a fork displacement device, in particular a lifting vehicle. The device comprises at least one substantially horizontally arranged carrier, in particular with a T-shaped cross-section. This ensures a flexible installation and at the same time a good stability. A guide profile, in particular with a C-shaped cross section, can be securely attached to the carrier, which is arranged so as to be displaceable on the carrier in the longitudinal direction. An axle can then be fastened to the guide profile in the region of an outer end on which the fork carrier profile is displaceably arranged in the longitudinal direction, at least one limiting device which restricts the longitudinal movement of the fork carrier profile on the axle.

The movement of the fork carrier profile can be ensured simply and safely by at least one corresponding displacement cylinder, which acts on the fork carrier profile and can move it in the longitudinal direction and is supported on the T-carrier, at least indirectly. It is advantageous if the stem for lifting vehicles has at least one vertically movable main carrier whose dimensions correspond to the width of the lifting vehicle and to which an intermediate frame with sliding cylinders for independent horizontal guidance of two fork carrier profiles is arranged, wherein the displacement cylinders are designed for the fork carrier profiles in that the fork carrier profiles can be brought into a mutual contact position as well as into a maximum spread position, wherein an outer edge of at least one fork carrier profile can be brought close to a virtual side surface which encloses the lifting vehicle in the direction of travel between them. Thus, the advantage is achieved that the application area for different cargo and its documents such as different pallets is significantly expanded at the lowest possible cost. The goods to be transported can thus be brought as close as possible to side walls and other transport goods such as containers and / or the forks can be inserted into pallets of different widths and numbers, for example in Euro pallets and two or more narrow pallets.

It is particularly advantageous in the course of further embodiments of the invention, if - the device in the sense of an intermediate frame in its head region has two oppositely operable horizontal hydraulic drives whose thrust paths, based on the center position of the device in the sense of an intermediate frame to each side to the maximum end position of each fork prong are designed, and / or the hydraulic drives are connected by a support profile such that they act in opposite directions, and / or the forks have vertical and horizontal legs and that in the vertical legs cutouts are arranged, the complement in the contact position of the forks to a viewing window for the operator, and / or the device in the sense of an intermediate frame on its front recesses for a manual Umhängen the forks, and / or the axes of the hydraulic drives in a common horizontal th plane, and / or the intermediate frame has four vertical struts, on which projections for attachment of the hydraulic drives for the displacement of the forks are arranged, and / or the axes the hydraulic drives for the forks lie in a common vertical plane within the intermediate frame, and / or when two guide bodies are arranged with T-shaped heads on the intermediate frame both above and below, surrounded by complementary sliding bodies on the vertical legs of the forks are.

It is advantageous if an abutment is provided at the outer end and / or at an inner end of the axle. The movement of the cylinder can thus serve both for a wide, easily specifiable lateral extension as well as a return.

It is advantageous if two, in particular four mirror-image arranged carrier, in particular T-beam, are provided with oppositely operable sliding cylinders. As a result, in particular a stable hold of the device is given. It is advantageous if the fork carrier profile is mounted in an axle.

It is advantageous if the fork carrier profile has a substantially central passage through which an axis is guided. As a result, in particular, the focus of the stem is moved to the rear and a narrower construction allows.

It is advantageous if two parallel axes are provided on which the fork carrier profile is guided.

It is advantageous if the fork carrier profile has two central passages through which the axes are guided.

It is advantageous if the lateral Gesamtausfahrweg is greater than the length of the carrier. It is advantageous if the fork carrier profile has a fork prong, in particular in one piece with the fork prong, wherein a vertical leg of the fork prong having central passages. This can be a significant savings in thickness and weight in this area.

It is advantageous if the device has two oppositely operable horizontal hydraulic drives in a head area, the thrust paths, based on a center position of the device are designed to each side to the maximum end position of each fork carrier profile, in particular the hydraulic drives are connected by a support profile in that they act in opposite directions and / or in particular the axes of the hydraulic drives lie in a common horizontal plane and / or in particular the device has recesses for a manual transfer of the fork carrier profiles, in particular on a front side and / or in particular has four vertical struts which projections for fixing the displacement cylinder for the displacement of the fork carrier profiles are arranged. It is advantageous if the fork carrier profiles have vertical and horizontal right leg and that in the vertical legs cutouts are arranged, which complement each other in the contact position of the fork carriage profiles to a viewing window for the operator. It is advantageous if the axes of the displacement cylinders for the fork carriage profiles lie in a common vertical plane within the device.

Further features and advantages of the invention will become apparent from the claims and the following description in which embodiments of the subject invention in conjunction with the drawings are explained in more detail.

Show it:

1 shows a device according to the invention,

2 shows a device according to the invention in exploded view, 3a-3d an inventive device in displacement positions,

FIG. 4 shows a perspective view of a part of a lifting vehicle with forked forks on the right side,

Figure 5 is a perspective view similar to Figure 4 with moved together

Forks on the left side,

FIG. 6 shows a perspective view of the intermediate frame with its drives,

FIG. 7 is a rear view of the lower right-hand corner of FIG. 6;

FIG. 8 shows a side view of the intermediate frame according to FIG. 6,

9 shows a detail of the upper part of Figure 8 in enlarged

Scale,

FIG. 10 shows a frontal view of the article according to FIG. 6, but with the struts furthest apart,

Figure 1 1 is a perspective view of the article of Figure 10, but with prongs suspended, Figure 12 is a front view of the attachment in a position to the right

Symmetrieebene of the lifting vehicle, and

FIG. 13 shows a front view of the front implement in a middle position

the plane of symmetry of the lifting vehicle.

Fig. 1 shows an inventive device 1 with two fork carrier profiles 2, which are held displaceably via two axes 6 at an outer end 7. The axes 6 are each attached to a guide profile 4 with a C-shaped cross section. In each case a guide profile 4 runs on a support 3 with a T-shaped cross-section. Fixedly coupled in parallel with the T-beam 3 and via a holder 13, in each case a hydraulic displacement cylinder 9 is articulated on a fork carrier profile 2.

Thus, each of the two displacement cylinder 9 is advantageously connected to an advantageously narrow Gabelträgerprofif 2, the top and bottom holes or bushings 10, are inserted through the two axes 6, in the region of their ends 7, 15 abutment 8, with the C-shaped guide profiles 4 are connected.

The associated with an extension and retraction of the cylinder 9 movement of the fork carrier profile 2 is shown in Figs. 3a-3d. When the cylinders 9 are extended, the fork carrier profiles 2 initially move from the zero position FIG. 3 a, starting on the axles 6, until they abut the abutments 8 at the outer end 7. As a result, the force is directed to the C-shaped guide profiles 4, which then move on the T-beam 3 with the remaining stroke of the cylinder 9.

Thus, the entire displacement is greater than the frame width and length of the C-shaped guide profiles.

When moving the cylinder 9, shown in Fig. 3c to 3d is a entspechender movement in the reverse direction, in particular abuts the fork carrier profile first to an abutment 8 at an inner end 15 of the axis to then push back the C-shaped guide profile 4 in terms of a double telescope principle , Fig. 2 shows an inventive device 1 in an exploded view. The device has a fork carrier profile 2, with the objects to be transported, For example, pallets can be easily grasped. Through the central passages 10 in the vertical leg region of the fork carrier profiles 2, a high weight saving and a return of the center of gravity can be done.

FIGS. 4 and 5 show the front and lower parts of a lifting vehicle 1 ', which has a lifting device 2' in front of the driver's seat, on which a main support 3 'for the transverse displacement of a device 1 for the support of two L-shaped Fork carrier profiles 2 has. One can imagine on both sides of the lifting vehicle 1 'depending on a virtual vertical plane whose distance corresponds to the width of the lifting vehicle. It can also be seen that at least the upper part of the main carrier 3 'corresponds to this width. The two fork carrier profiles 2 are shown in their contact position, and the respective outermost edge 7 ', 8' at least largely reaches the respective virtual plane. This allows a recorded load to be moved to a respective wall or other object to which the lifting vehicle 1 'can be moved as close as possible, wherein the passage along the axis 6, shown by way of example in Fig. 1, can take place.

In FIG. 6 it is shown that the device 1 has in its head area two horizontally operable horizontal hydraulic drives 9 'and 10' whose axes lie in a common horizontal plane. The piston rod 9a 'of the drive 9' is shown in its maximum Ausschubstellung, the piston rod of the drive 10 'in its retracted position to facilitate the overview. As Figure 6 further shows, the device 1 has four vertical struts 11 ', 12' and 13 ', one of which is hidden by the strut 12', and protrusions 11a ', 12a' and 13a 'on these struts. provided for the attachment of the hydraulic displacement cylinder 9 whose axes lie in a common vertical plane between the struts 1 1 ', 12' and 13 '.

On the device 1, four horizontal cross member 16 ', 17', 18 'and 9' are provided, on which the struts 12 'and 13' with the associated fork carrier profiles 2 by means of sliding bodies are displaceable, the heads of the cross member 16 ', 17' Embrace '18' and 19 '. Further details are shown in FIG. At the upper and lower ends of the struts 12 'and 13' are still with support members 21 'and 22' connected, which can be used with recesses 23 'for manual horizontal transfer of the fork carriage profiles, not shown here, if this is additionally desirable.

FIG. 7 shows a rear view of the right lower corner of FIG. 6 with one of the guide housings 24 'with a roller 25' which rolls on the lower main support 3 '.

In FIG. 8, one of the lifting devices 2 'is indicated on the right, to which the main carrier 3' with its two horizontal guides 3a 'and 3b' is fastened. At this the already described device 1 is guided, to the u.a. the strut 1 1 'with its projection 1 1 a' may include for receiving the displacement cylinder 9. Evident are also the four cross members 16 ', 17', 18 'and 19' with the respectively associated sliding bodies. In the upper area are the two hydraulic drives 9 'and 10'.

FIG. 9 also shows that the two hydraulic drives 9 'and 10' can be separated by a supporting profile 26 'which has two horizontal limbs and a vertical connecting link 27'. FIG. 10 shows a most spread state of the vertical struts 12 '. and 13 '. By contrast, FIG. 11 shows a perspective view of the article of FIG. 10 with attached fork carrier profiles 2 (dashed line). Here it is also shown that in the vertical legs of the fork carrier profiles 2 cutouts 28 'are arranged, which complement when the fork carriage profiles 2 have moved together to a window for the operator.

Figures 12 and 13 can be seen in synopsis. They are connected by three dot-dash lines, of which the middle line S stands for the virtual plane of symmetry of the lifting vehicle, while the two outer lines LR 'and LL' for the virtual lateral boundary walls of the lifting vehicle 1 '. Again, it can be clearly seen that the cutouts 28 'complement each other to form a viewing window. At the top of a line guide 29 'for the supply of the upper hydraulic drives 9' and 10 'is indicated.

LIST OF REFERENCE NUMBERS

1 device

r lifting vehicle

2 fork carrier profile

2 'lifting device

3 carriers

3a 'leadership

3b 'leadership

3 'main carrier

4 guide profile

5 longitudinal direction

6 axis

7 outer end

7 'edge

8 abutments

8 'edge

9 displacement cylinder

9a 'piston rod

9 'hydraulic drive

10 implementation

0 'hydraulic drive

11 extension path

i strut

11a 'lead

12 'strut

12a 'lead

13 bracket

13 'strut

13a 'lead

15 inner end 4 fork tine

6 Limiting device 6 "cross member

7 'cross member

8 'cross member

9 'cross member

1 'support element

2 'support element

3 'recesses

4 "guide housing

5 'roller

26 'support profile

27 'connecting link protection profile

28 'excerpts

29 'cable routing

S 'Symmetrieeben

LR 'right vehicle limit

LL 'left vehicle limit

Claims

1. A device (1) for receiving a fork carrier profile (2), in a stem on a Zinkenverstellgerät, in particular a lifting vehicle to install, comprising:

at least one carrier (3) arranged substantially horizontally, in particular a T-bar, at least one guide profile (4), in particular a C-shaped guide profile, displaceable in a longitudinal direction (5) on the carrier (3), in particular the T-bar Support, is arranged, at least one axis (6) which is fixed to the guide profile (4) in the region of an outer end (7) substantially parallel to the longitudinal direction (5) and on which the fork carrier profile (2) in the longitudinal direction (5) is arranged displaceably, at least one limiting device (16) which limits the longitudinal movement (5) of the fork carrier profile (2) on the axis (6), at least one corresponding displacement cylinder (9) which engages the fork carrier profile (2) and this in the longitudinal direction (5) can move and at least indirectly supported on the support (3).

2. Device according to claim 1, characterized in that the stem for lifting vehicles (1 ') has at least one vertically movable main carrier (3') whose dimensions correspond to the width of the lifting vehicle (1 ') and on which the device (1) Displacement cylinders (9) for the independent horizontal guidance of two fork carrier profiles (2) is arranged, wherein the displacement cylinders (9) for the fork carrier profiles (2) are designed such that the fork carrier profiles (2) can be brought both in a mutual contact position also in a maximum spread position, wherein an outer edge of at least one fork carrier profile (2) in the vicinity of a virtual side surface can be brought, which include the lifting vehicle (1 ') in the direction of travel between them.

3. Apparatus according to claim 1 or 2, characterized in that at the outer end (7) and / or at an inner end (15) of the axis, an abutment (8) is provided.

4. Apparatus according to claim 1 to 3, characterized in that two, in particular four mirror image arranged carrier, in particular T-carrier (3), are provided with oppositely operable sliding cylinders (9).

5. Device according to one of claims 1 to 4, characterized in that the fork carrier profile (2) in an axis (6) is mounted.

6. Device according to one of claims 1 to 5, characterized in that the fork carrier profile (2) has a substantially central passage (10) through which the axis (6) is guided.

7. Device according to one of claims 1 to 5, characterized in that the fork carrier profile (2) has two central passages (10) through which the axes (6) are guided.

8. Device according to one of claims 1 to 7, characterized in that two parallel axes (6) are provided, on which the fork carrier profile (2) is guided.

9. Device according to one of claims 1 to 8, characterized in that the lateral Gesamtausfahrweg (11) is greater than the length of the carrier (3).

10. Device according to one of claims 1 to 9, characterized in that the fork carrier profile has a fork prong (14), in particular in one piece with the fork prong, wherein a vertical leg of the fork prong (14) has central passages (10).

1 1. Apparatus according to claim 1 to 10, characterized in that it has in a head region two oppositely operable horizontal hydraulic drives (9 ', 10') whose thrust paths, based on a center position of the device to each side to the maximum end position of a each fork carrier profile (2) are designed, wherein in particular the hydraulic drives (9 ', 10') by a Tragpro- fil (26 ') are connected such that they act in opposite directions and / or in particular the axes of the hydraulic drives (9' , 10 ') lie in a common horizontal plane and / or in particular the device has recesses (23') for a manual transfer of the fork carrier profiles (2), in particular on a front side, and / or in particular four vertical struts (11 ', 12', 13 '), on which projections (11a', 12a ', 13a') for the attachment of the displacement cylinder (9) for the displacement of the fork carrier profiles (2) are arranged.

12. The device according to claim 1 to 11, characterized in that the gbelbelträgerprofile (2) have vertical and horizontal legs and that in the vertical legs cutouts (28 ') are arranged, which in the contact position of the fork carrier profiles (2) supplement a viewing window for the operator.

13. The apparatus according to claim 1 to 12, characterized in that the axes of the displacement cylinder (9) for the fork carrier profiles (2) lie in a common vertical plane within the device (1).