EP2782865B1 - Glass sheet transport vehicle - Google Patents

Description

The invention relates to a glass plate transport vehicle for the handling of substantially upright stacks of glass plates and a glass plate storage and transport system, with a shelf on which stacks of glass plates are substantially upright storable and with such a glass plate transport vehicle.

The glass plate transport vehicle has a support fork for driving under at least one stack, as well as a support frame for substantially horizontal support of an undercut stack and may have at least one approximately parallel to the support frame displaceable holding claw.

Such a vehicle is known for example from Hubtex Maschinenbau GmbH & Co. KG under the name "M60". It serves for receiving and depositing substantially upright stacks of glass plates from or on shelves in which they are mounted at approximately perpendicular to the surface of the glass plates extending floor supports at a distance from the ground. The support frame is displaceable parallel to the support fork tines relative to the support fork. The holding claws are in addition to the displaceability parallel to the support frame displaced in this way.

In order to remove certain quantities of glass plates, the individual stacks of glass plates are often spaced apart by means of spacers inserted between them.

In order to be able to remove a certain number of stacks, the support fork is brought by an operator of the glass plate transport vehicle in a position in which the lower edge of the stack can be traversed by the support fork tines. The operator is often in the Unterfahrvorgang in a position that allows it to look through from above through the space between two adjacent stacks through and to control when the free ends of the support fork tines so far in the distance space between the last still to be absorbed and the first still leave on the floor beams left stack, so that the last pile to be picked up by lifting the support fork can be added without the tips of the support fork tines damage the resting on the bottom support glass plate stack.

After reaching this driving position, the forward drive of the vehicle or the fork is stopped and the support frame is displaced against the glass plate closest to the vehicle. The support frame or fork is previously tilted to a position that allows uniform contact of the glass plate with the support frame when lifting from the floor beams, in other words, the support frame is previously aligned parallel to the glass plate stack.

Before the lifting operation, the holding claws are lowered from above into the space between the last to be lifted and the first, left on the floor supports glass plate stack to receive the glass plate stack and secure against tipping, for example during braking.

The discontinuation of stacks in such shelves rack shelves is correspondingly reversed.

A disadvantage of this Glasplattenlager- and transport system, or this glass plate transport vehicle is that fanned glass plate stack can not always be picked up and transported quickly and non-destructively. In addition, it is conceivable that a glass plate stack (slightly) fanned during transport with the glass plate transport vehicle and then difficult to act.

From the JP 9030792 A is a support fork with a retaining element known.

The JP 2002160896 A shows a support fork with pallet spring stop to avoid damage to the pallets.

The DE 1204139 B shows a lift truck with spring-loaded suction cups.

From the US 2009/008951 A1 is a forklift with padded carrying fork known.

The CN 201962036 U shows a forklift with a counter-holder, which presses a stack, which is located on a received with the support fork frame against this frame.

The invention has therefore taken on the task of creating a Glasplattenlager- and transport system, and a glass plate transport vehicle, which is at least improved in one of the aforementioned disadvantages. This object is solved by the recited in claim 1 glass plate transport vehicle and reproduced in claim 11 Glasplattenlager- and transport system.

The glass plate transport vehicle according to the invention serves to handle substantially upright stacks of glass plates and comprises a preferably supporting fork prongs comprehensive carrying fork for driving under at least one stack. The glass plate transport vehicle also has a support frame for substantially horizontal support of an underrun stack. Preferably displaceable holding claws are provided parallel to the support frame. In addition, the glass plate transport vehicle comprises a glass compartment stop element. By this is meant an element that prevents glass plates from becoming are on the support fork, fan out, so leave their parallel arrangement to each other. With baffles is meant in particular the down fanning, so an increase in the distance of the lower edges of the glass plates to each other. The support frame is preferably movable relative to the support fork substantially horizontally. The same applies preferably to the retaining claws.

The fork may be fork-shaped or shaped differently. You may have a continuous or only slightly interrupted support surface instead of forks.

The glass plate transport vehicle, also referred to as a vehicle in the context of this document, serves to receive and deposit substantially upright stacks of glass plates from or on shelves.

The vehicle preferably has an approximately vertical upright mast, which can be inclined about a transverse to the forward direction of travel of the vehicle axis by way of preferably a maximum of 10 ° in both directions from the vertical. On the mast are preferably the support fork, more preferably the support frame and more preferably the holding claws preferably arranged height adjustable.

The glass compartment stop element is preferably a glass straightening element at the same time. It thus preferably causes the erection of already fanned glass plates, in particular on the shelf, preferably immediately before lifting by means of the support fork. This ensures that the glass plates of a fanned-out glass plate stack are brought back into their parallel arrangement in the rack before they are taken up by the support fork. The risk of glass breakage is thereby reduced.

The glass compartment stopping element can be brought into operative connection with the glass plate stack such that it exerts a preferably elastic pressure force on a broad side of the glass plate stack. By the pressure force fanned glass plates are pushed back into their orientation oriented parallel to the other glass plates or it is prevented that they leave this orientation. As a result, the Glasfächerstoppelement differs from tensile or shear forces exerting elements, such as suction cups. The glass compartment stop element preferably exerts only a compressive force on the glass plate stack or the nearest glass plate.

The glass compartment stop element comprises a spring element.

The glass fan stop element is preferably an independent element. By this it is meant that it is not merely a padding of a hard element, such as the support frame. In this way, particularly advantageous properties, such as a large travel can be achieved.

The glass compartment stop element preferably acts exclusively on the lower area, preferably the lower half, and particularly preferably the lower third of the glass plate stack. So it's not about the entire support frame or all horizontally acting contact elements to the glass plate stack designed as Glasfächerstoppelemente.

More preferably, the Glasfächerstoppelement is movable with the support frame. Thus, by not having to control the glass compartment stop element separately, the operator will experience at most a slight increase in the complexity of the operation.

Preferably, the glass compartment stop element is arranged on the support frame. In one embodiment, it is arranged on the support frame such that the contact surfaces of the glass compartment stop element are positioned to the glass plate stack below the contact surfaces of the remaining support frame to the glass plate stack.

In the unloaded state, the glass compartment stop element protrudes forward from the plane of the support frame by a certain distance, preferably at least approximately perpendicular to this plane. The spring travel of the spring element at least approximately perpendicular to the plane of the support frame is at least as large like this route. In the context of this publication, the plane of the support frame designates the plane defined by the contact elements of the remaining support frame relative to the glass plate stack. In an approximation of the support frame to a broad side of a glass plate stack is thus preferably the first Glasfächerstoppelement with this in contact. If the support frame continues to move towards the glass plate stack, then the glass compartment stop element continues to spring. The travel is preferably so large that its contact element can deflect into the plane of the support frame, so that this no longer protrudes from this plane.

Preferably, the spring element comprises a helical spring, or is formed by a helical spring, which is further preferably loaded to train. The glass compartment stopping element preferably comprises a contact plate, a rod and a guide bearing for the rod.

If the spring is arranged in a cylinder, then a Glasfächerstoppelement results with reduced susceptibility to dirt.

The spring length of the coil spring is preferably greater than the spring travel of the coil spring.

Preferably, the spring travel of the spring element, which causes the elastic pressure force, greater than 100 mm. As a result, an early contact in contact of the contact element of the Glasfächerstoppelements is achieved with the nearest glass plate and a gentle increase in the force exerted on the glass plate pressure force on further approach of Glasfächerstoppelementes to the glass plate.

The invention also includes a glass plate storage and transport system comprising a shelf and a glass plate transport vehicle having the above-mentioned features.

The shelf or the racks preferably have shelf supports, and the glass plates are preferably arranged perpendicular to the surface of the shelf support thereon.

The vehicle is preferably equipped with a chassis, which is suitable for driving over the bottom support, in particular in the longitudinal direction.

In order to be able to remove certain quantities of glass plates, the individual stacks of glass plates are preferably spaced apart by means of spacers inserted between them. The distance is particularly preferably between 20 and 50 mm.

The glass compartment stopping element of the vehicle of this system is preferably engageable with the glass plate stack so as to exert a compressive force on the nearest glass plate greater than the static friction force of that glass plate on the shelf and / or on the support fork. If the glass plate closest element glass plate is fanned out, then it is thereby pressed against the underlying glass plate and thereby erected.

In one embodiment of the system, the glass compartment stopping element is operatively connected to the glass plate stack such that it exerts a compressive force on the nearest glass plate that is greater than the static friction force of a plurality of glass plates on the shelf and / or on the support fork, and preferably smaller than the static friction force all glass plates of the glass plate stack on the shelf or / and on the support fork.

In particular, in one embodiment of the system, preferably, the spring stiffness of the spring element is selected such that spring deformed by the particular distance that the glass fan stop element protrudes out of the plane of the support frame when unloaded acts as a spring force greater than the static frictional force of exactly one glass plate on the shelf or / and the carrying fork is. This ensures that at the latest when almost completely rebounded Glasfächerstoppelement this a force on the glass plate on which it rests, exerts this, if the glass plate is not flat against the nearest, so fanned, press this against the nearest glass plate. The spring rate may be selected so that the force acting on the spring deformed by said distance is greater than the static friction force of exactly one sheet of glass. The spring stiffness is preferably chosen so that it is significantly smaller than the static friction of the entire glass plate stack on the support fork with fully sprung glass fan stop element. In this way it is further ensured that the glass plate stack remains safely on the support fork during transport, even if the glass plate transport vehicle, for example, passes a bump.

Fig. 1

ein aus dem Stand der Technik bekanntes Glasplattentransportfahrzeug in einer perspektivischen Ansicht von schräg vorne;

Fig. 2

das erfindungsgemäße Glasplattenlager- und Transportsystem in einer Seitenansicht;

Fig. 3

- schematisch - einen Ausschnitt eines erfindungsgemäßen Glasplattentransportfahrzeugs in einer Ansicht von oben;

Fig. 4

- wiederum schematisch - die Wirkungsweise eines Ausführungsbeispiels eines erfindungsgemäßen Glasplattenlager- und Transportsystems in einer Seitenansicht eines Glasplattenstapellagers bzw. Regals;

Fig. 4a

eine Ansicht wie in Fig. 4, jedoch mit aufgefächertem Glasplattenstapel;

Fig. 5

eine Ansicht wie in Fig. 4 bzw. Fig. 4a, jedoch mit bereits aufgenommenem Glasplattenstapel;

Fig. 6

eine dreidimensionale Darstellung eines Glasfächerstoppelements;

Fig. 7

eine Darstellung eines Glasfächerstoppelements wie in Fig. 6 jedoch in vergrößerter Darstellung und mit anderem Blickwinkel;

Fig. 8

eine Darstellung eines Glasfächerstoppelementes wie in Fig. 6, jedoch in vergrößerter Darstellung und mit einem anderen Blickwinkel;

Fig. 9

eine perspektivische Darstellung eines Ausschnitts eines erfindungsgemäßen Glasplattentransportfahrzeugs mit Blick schräg von der Seite;

Fig. 10

eine Ansicht eines Ausschnitts eines Glasplattentransportfahrzeugs wie in Fig. 9, mit Blick von vorne;

Fig. 11

eine Ansicht wie in Fig. 10, jedoch eines anderen Ausschnitts.

The invention will now be explained in more detail with reference to embodiments shown in the drawings. Show it:

Fig. 1

a known from the prior art glass plate transport vehicle in a perspective view obliquely from the front;

Fig. 2

the Glasplattenlager- and transport system according to the invention in a side view;

Fig. 3

- Schematically - a section of a glass plate transport vehicle according to the invention in a view from above;

Fig. 4

- again schematically - the operation of an embodiment of a Glasplattenlager- and transport system according to the invention in a side view of a glass plate storage bin or shelf;

Fig. 4a

a view like in Fig. 4 , but with a fanned out glass plate stack;

Fig. 5

a view like in Fig. 4 respectively. Fig. 4a , but with glass plate stack already taken up;

Fig. 6

a three-dimensional representation of a Glasfächerstoppelelements;

Fig. 7

a representation of a glass fan replica as in Fig. 6 but in an enlarged view and with a different angle;

Fig. 8

a representation of a Glasfächerstoppelementes as in Fig. 6 but in an enlarged view and with a different angle;

Fig. 9

a perspective view of a section of a glass plate transport vehicle according to the invention viewed obliquely from the side;

Fig. 10

a view of a section of a glass plate transport vehicle as in Fig. 9 , with a view from the front;

Fig. 11

a view like in Fig. 10 but a different section.

This in Fig. 1 shown from the prior art glass plate transport vehicle comprises a biaxial chassis 1, the wheels 2, 3 are arranged steerable by 180 °. On the chassis 1, an axis A extending transversely to the forward direction of travel V is arranged forwardly and rearwardly from the vertical tiltable mast 4 ( Fig. 2 ). The handling device 6 comprises a support fork 2 having two support fork tines 8, 9, a support frame 11 for about horizontal support of a glass plate stack 7 during handling, and two holding claws 12, 13. Furthermore, suction devices 14 are provided on the handling device 6, by means of which the glass plate transport vehicle facing glass plate can be sucked, in particular for the handling of individual glass plates. The holding claws 12, 13 are provided displaceable by a distance X in the forward direction of travel of the vehicle.

This in Fig. 2 The glass plate storage and transport system shown comprises a glass plate transport vehicle 200 and a shelf 15. The shelf 15 has floor supports 16 arranged on the floor, whose surface or shelf is not completely horizontally aligned, but slightly inclined. Glass plate stacks 7 stand on the floor supports 16 perpendicular to this shelf. The glass plate stacks 7 are therefore essentially vertical and are inclined only slightly, tilting obliquely to avoid unwanted tilting out of the shelf.

The glass plate transport vehicle 200 is used in particular for receiving or depositing stacks of glass plates from or in a shelf 15 Fig. 2 shown glass plate transport vehicle 200 of the glass plate storage and transport system 100 differs from that in Fig. 1 shown only in that there is a in Fig. 2 only schematically illustrated glass fan stop element 17 includes. The Glasfächerstoppelement 17 can also be referred to as a sprung counter-holder.

Like for example Fig. 6 shows, the glass compartment stop member 17 includes a contact plate 20, with which it comes into contact with a glass plate or a stack of glass plates, an adjacent thereto rod 21, a spring element 18, which is formed by a loaded on train coil spring 18b of the spring length 18a, which in a cylinder 23 is arranged. The glass compartment stopping element 17 is arranged by means of a carrier 11a on the support frame 11 of the glass plate transport vehicle. In particular Fig. 7 shows, the rod 21 is mounted axially displaceably in a guide bearing 22.

Such as the schematic representations of FIGS. 4, 4a and 5 show, the support frame 11 can be moved in a predominantly horizontal direction relative to the support fork 10. The FIGS. 4 and 5 show the picking up of a non-fanned glass plate stack 7. The tines 8, 9 run under as many glass plates or glass plate stacks as to be included. The support frame is aligned parallel to the glass plate stack. Subsequently, the support frame 11 is moved approximately horizontally so far in the direction of the free ends 8a, 9a of the support fork tines until it rests against the glass plate 7a, which is closest to the glass plate transport vehicle 200. The Glasfächerstoppelement 17, more precisely, its contact plate 20, in the unloaded state by the distance S from the plane E of the support frame 11 forward, that is, in the direction of the free ends 8a, 9a of the support fork tines out. During the approach of the support frame 11 to the glass plate transport vehicle nearest glass plate comes the contact plate 20 so before the rest of the support frame 11 with the glass plate in contact. In the further approximation of the support frame 11 to the glass plate, the glass fan stop element 17 springs so far until its contact plate 20 is in the plane E of the support frame 11. Here, a gradually increasing with the approach of the support frame 11 to the glass plate stack elastic pressure force is exerted on a broad side 7b of the glass plate stack. Since the glass compartment stopping member 17 is disposed at the bottom of the support frame 11, this elastic pressing force acts on the lower portion of the glass plate stack 7. This prevents the glass plate stack 7 from fanning down toward the glass plate transporting vehicle during transportation with the glass plate transporting vehicle 200. The risk of glass breakage during this transport or further storage or transporting is thereby reduced. Like a comparison of FIGS. 4 and 5 shows, the support fork 10 can be raised independently of the support frame 11. The fitting support frame can thus remain in place during the lifting of the support fork.

Fig. 4a shows a further function of the Glasfächerstoppelementes 17. There are four glass plate stacks 7 shown, which are arranged by spacers, which provide a clearance space 19 on the floor beams 16 of the shelf 15. In the three in the Fig. 4a Glass plate stacks 7 shown left, the glass plates 7a are arranged parallel to each other. In contrast, the glass plate stack 7 shown on the right is fanned down. The lower edges of the glass plates 7a shown only schematically are spaced apart, while the upper edges abut each other. During the approach of the support frame 11 to the glass plate stack, the glass compartment stop member 17 exerts a force that increases with further approach to the lower portion of the broad side 7b of the nearest glass plate in the shelf 15. The spring stiffness of the coil spring 18b is selected so that when the coil spring 18b is deformed by the distance S at which the elastic element or parts of the elastic element (contact plate) protrude from the plane E of the support frame 11, a compressive force greater than the static frictional force of a single glass plate 7a on the bottom support 16 of the shelf 15. At least at nearly complete approximation of the support frame 11, the nearest glass plate in its lower part pressed against the underlying glass plate and thereby erected. The spring rate can be so great that several possibly fanned-out glass plates 7a on the shelf are moved to their proper parallel position relative to each other before being picked up.

As the FIGS. 4, 4a and 5 can be seen, the holding claws 12, 13 are inserted from above into the space space 19 and serve the upper fixation of the glass plate stack 7 and the glass plates contained in these 7a. The glass plate stacks 7 may be formed by glass plates 7a lying loosely against each other and not fixed (such as by a frame).

The Glasfächerstoppelement 17, unlike in the FIGS. 4, 4a and 5 shown to be arranged so deep that it is arranged at recorded glass plates 7 a in the vicinity of the lower edges (see. Fig. 2 ). In Fig. 2 the connection between the Glasfächerstoppelement 17 and the support frame 11 (such as carrier 11 a) is not shown.

At the free end of the rod 21, a snap ring 21 a may be arranged as Fig. 8 shows.

The support fork tines 8, 9 may have approximately the length of the thickness of a glass plate stack 7, compare approximately Fig. 2 , or be significantly longer, compare for example FIGS. 4, 4a and 5 ,

LIST OF REFERENCE NUMBERS

100

Glass plate storage and transport system

200

Glass plate transport vehicle

1

chassis

2, 3

bikes

4

mast

5

operating platform

6

handling device

7

Stack of glass plates

7a

glass plate

7b

Broad side of a glass plate stack

8, 9

Supporting forks

8a, 9a

free ends of the support fork tines

10

carrying fork

11

support frame

11a

carrier

12, 13

retaining claws

14

suction devices

15

shelf

16

Shelf support

17, 17 '

Glass partitions stopper

18

spring element

18a

spring length

18b

coil spring

19

distance space

20

Contact plates

21

pole

21a

snap ring

22

guide bearing

23

cylinder

A

axis

R

Reverse direction

V

Forward direction

e

Plane of the support frame

S

Distance by which the elastic element or parts of the elastic element from the plane E protrudes

F

travel

Claims (9)

1. Glass sheet transport vehicle (200) for handling substantially upright stacks (7) of glass sheets (7a), comprising a supporting fork (10) for passing underneath at least one stack (7) and a supporting frame (11) for supporting a lifted stack (7), wherein the glass sheet transport vehicle (200) comprises a glass fanning stop element (17), and the glass fanning stop element (17) can be operatively connected to a stack (7) of glass sheets in such a way that it exerts a pressure on a broad side (7b) of the stack (7) of glass sheets and the glass fanning stop element (17) comprises a spring element (18), and the glass fanning stop element (17) in the unloaded state projects forwards by a predetermined distance (S) out of the plane (E) of the supporting frame (11), characterized in that the spring deflection (F) of the spring element (18) at least approximately perpendicular to the plane (E) of the supporting frame (11) is at least as great as the distance (S).
2. Vehicle according to claim 1, characterized in that the glass fanning stop element (17) is simultaneously a glass straightening element.
3. Vehicle according to claim 1 or 2, characterized in that the glass fanning stop element (17) acts exclusively on the lower region, preferably the lower half of the stack (7) of glass sheets.
4. Vehicle according to one of claims 1 to 3, characterized in that the glass fanning stop element (17) is disposed on the supporting frame (11).
5. Vehicle according to one of claims 1 to 4, characterized in that the spring element (18) comprises a helical spring (18b) and the glass fanning stop element (17) comprises a contact plate (20), a rod (21) and a guide bearing (22).
6. Vehicle according to claim 5, characterized in that the spring length (18a) of the helical spring (18b) is greater than the spring deflection (F) of the helical spring (18b).
7. Vehicle according to one of claims 1 to 6, characterized in that the spring deflection (F) of the spring element (18) is greater than 100 mm.
8. Glass sheet storage and transport system (100) comprising a shelf (15) and a glass sheet transport vehicle (200), characterized in that the glass sheet transport vehicle (200) is constructed according to one of the aforementioned claims.
9. System according to claim 8, characterized in that the spring stiffness of the spring element (18) is selected so that, when the spring is deformed by the distance (S), a spring force acts which is greater than the static friction force of precisely one glass sheet (7a) on the shelf (15) and/or the supporting fork (10).

Images