EP0515996B1 - Attachment for stacker trucks in the form of a tine- or gripper-adjuster - Google Patents

Attachment for stacker trucks in the form of a tine- or gripper-adjuster Download PDF

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Publication number
EP0515996B1
EP0515996B1 EP92108662A EP92108662A EP0515996B1 EP 0515996 B1 EP0515996 B1 EP 0515996B1 EP 92108662 A EP92108662 A EP 92108662A EP 92108662 A EP92108662 A EP 92108662A EP 0515996 B1 EP0515996 B1 EP 0515996B1
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EP
European Patent Office
Prior art keywords
supporting
prong
support
bores
lifting frame
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EP92108662A
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German (de)
French (fr)
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EP0515996A1 (en
Inventor
Klaus Dieter Hackauf
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Hans H Meyer GmbH
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Hans H Meyer GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075Constructional features or details
    • B66F9/12Platforms; Forks; Other load supporting or gripping members
    • B66F9/14Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • B66F9/142Movements of forks either individually or relative to each other
    • B66F9/143Movements of forks relative to each other - symmetric

Definitions

  • the invention relates to an attachment for movable stacker in the form of a tine or clamp adjusting device, with a right-angled lifting frame, which consists of side cheeks and an upper and a lower, the cheek connecting support and guide tube, in which the support and guide tubes through Bores from two parallel to the side cheeks, sliding along the support tubes slidable support beams, each of which can be connected with a prong or a clamping element.
  • Attachments of the aforementioned type are known, which are designed in particular as tine adjustment devices and which are distinguished by their simple construction with great load-bearing capacity.
  • the displaceable support beams can be guided by means of simple round bushings, so that only very low frictional forces occur when the support beams are moved.
  • the supporting beams are either equipped with a prong or with a clamp element (hereinafter referred to as a clamping element).
  • a clamping element hereinafter referred to as a clamping element.
  • the invention has for its object to develop the attachment of the type mentioned in such a way that a lateral adjustability of the tines or clamping elements is made possible far beyond the lifting frame.
  • the attachment is characterized in that in each support beam laterally and above or below adjacent and parallel to the respective bore for the support and guide tubes, a further bore is provided with slidably guided tubular supports, each support beam an upper and a lower support is assigned that one end of each support is connected to a tine or clamping element running parallel to the side cheeks of the lifting frame, and the other end has a stop which interacts with the associated support beam and is contactless with this end by an additional Recess can be pushed through in the respective other supporting beam, and that a piston-cylinder arrangement acts on the prongs or clamping elements, which is connected at the other end to the side cheek which is more distant from the respective prongs or clamping element.
  • the entire arrangement also enables extraordinarily small front dimensions, through which the permissible load on the attachment is not noticeably reduced.
  • the width of the attachment is not increased, since the lifting frame is not enlarged compared to the known construction, so that despite the possibility of wide spreading of the tines or clamping elements, the attachment can also be used in the same narrow work steps as is the case with conventional ones Attachments is the case.
  • the support beams extend in the bores for the guide tubes toward the side cheeks and extend the bores for the tubular supports have projections facing the respective other supporting beam, in which bores are provided which are aligned with the bores in the supporting beam.
  • the above-mentioned projections of the supporting beams can be provided practically in the manner of tubular approaches through which the guide tubes or tubular supports extend.
  • the projections provided on the support beams in the extension of the bores for the guide tubes reduce the displacement of the support beams, since the said projections interact with the side cheeks of the lifting frame and thereby determine the maximum distance between the support frames.
  • this reduction in the maximum displacement of the supporting beams can be easily compensated for.
  • At least one spring is provided between each tine or clamping element and the associated adjacent supporting beam, which urges the prongs or the clamping element into the position remote from the supporting beam, which is provided by the tubular supports provided with and Support beam interacting stops is limited.
  • the arrangement of the aforementioned springs ensures that when the tines or clamping elements are moved into the spreading position, the tines or clamping elements are first moved away from the supporting beams, while the supporting beams remain in their approximate position on the supporting and guide tubes. Only when the tines or clamping elements have been moved outwards to such an extent that the stops of the tubular supports interact with the supporting beam, is the carrying beam carried in the direction of the respective side cheeks of the lifting frame until the supporting beams strike these side cheeks. Conversely, at Moving together the tines or clamping elements takes the respective associated support frames with them until they reach their retracted position before the tines or clamping elements are transferred relative to the supporting beam into their final, pushed-together position. The distance between the respective support beam and the associated tines or clamping element is thus maintained when the tines or clamping elements are pushed together until the support beams reach their final, retracted position.
  • the springs provided for the aforementioned mode of operation can expediently be arranged in the tubular supports and can be designed as compression springs. This results in a space-saving and protected arrangement of the springs.
  • the new attachment can be easily designed as a four-prong adjustment device. For this it is only necessary that prongs are arranged on the outer ends of the tubular supports and also on the supporting beams.
  • the drawing shows an embodiment of the invention.
  • an attachment is shown in the form of a tine adjustment device with four tines.
  • the attachment shown in the figures has a lifting frame designated overall by 1, which consists of side cheeks 2 and an upper and lower support and guide tube 3 and 4.
  • the support and guide tubes 3 and 4 are each firmly connected to the upper and lower ends of the cheeks 2.
  • support beams 7 and 8 are held longitudinally.
  • the support beams 7 and 8 are provided with prongs 9 and 10 held thereon, but these are omitted in a normal tine adjusting device with two prongs.
  • the support beams 7 and 8 are provided for guidance on the support and guide tubes 3 and 4 with corresponding bores and guide bushes arranged therein.
  • the upper bores 11 and 12 and the guide bushing 11a and 12a held therein can be seen through the partial sectional view.
  • bores 11 and 12 are provided in the same way for receiving the lower support and guide tube 4.
  • each support beam 7 and 8 being assigned an upper and a lower support.
  • the further bores 13 and 14 with the bushings 13a and 14a arranged therein can be seen in the cut part.
  • the upper tubular supports 15 and 16 extend through these bores 13 and 14 respectively.
  • the lower tubular supports, which correspond to the tubular supports 15 and 16 and are guided in the same manner in the supporting beams 7 and 8, are shown in FIG. 1 designated 15 'and 16'.
  • the guide tubes 15 and 15 ' are firmly connected to an outer prong 17 and the guide tubes 16 and 16' are firmly connected to a further outer prong 18.
  • Piston-cylinder arrangements 19 and 20 engage the outer prongs 17 and 18, the other end of which is connected to the cheek 2 of the lifting frame, which cheek is more distant from the respective outer prongs 17 and 18.
  • the carriers (hereinafter referred to as guide tubes) 15 and 15 ' are arranged on the side and above the support and guide tubes 3 and 4, while the guide tubes 16 and 16' laterally below the support and guide tubes 3 and 4.
  • the projections for the extended guidance of the support and guide tubes 3 and 4 are designated 21 in the drawing. These projections point to the side cheeks 2 of the lifting frame.
  • the lead for the extended Guide of the guide tubes 15 and 15 'and 16 and 16' are designated 22 and point in the other direction.
  • all the projections 21 and 22 are sleeve-shaped and can be produced in one piece with the support frames 7 and 8. Guide bushings are again provided in these sleeve-shaped projections, as can be seen from the upper part of the sectional view in FIG. 1.
  • the guide tubes 15 and 15 'and 16 and 16' are each provided with a stop 23 at their ends facing away from the prongs 17 and 18, which cooperates with the respective projection 22 and limits the extension path of the prongs 17 and 18.
  • the additional holes 24 are arranged in the support beam 7 and the additional holes 25 are arranged in the support beam 8. According to the illustration in FIG. 3, these are provided with additional cutouts 25a, which allow the stops 23 or the abutments 30 to be described, which are each firmly connected to the sleeve-shaped projections 22 and cooperate with a spring 31.
  • the springs 31 are designed as compression springs and extend through the respectively assigned guide tubes 15 'or 16' to the prongs 17 or 18.
  • the springs 31 endeavor to meet the respective requirements To push tines 17 and 18 in a position removed from the adjacent support beam 7 and 8 respectively.
  • the cylinder arrangements 19 and 20, which can be acted upon on both sides, are acted upon by appropriate pressure control in such a way that they move the tines 17 and 18 towards one another.
  • the springs 31 maintain the distance of these tines from the respective support beam 7 and 8 during the movement of the prongs 17 and 18, ie the support beams 7 and 8 are arranged together with the prongs 7 and 8 by the arrangement of the springs 31 and the abutment 30 moved towards the central longitudinal plane 32.
  • the springs 31 and abutments 30 extend through the bores 24 and 25 in the support beams 7 and 8 until the support beams reach a position in which the projections 22 bear against the respectively opposite support beam. This is the position which the supporting beams 7 and 8 already assume in FIG. 2.
  • each support beam 7 and 8 is formed in its upper and lower region towards the Hubrahman 1 reinforced, d. H. each support frame 7 or 8 has a corresponding projection 7a or 8a. This configuration contributes to the fact that very small stem dimensions can be maintained despite the necessary holes in the support arms 7 and 8.
  • clamping jaws can also be fastened to the guide tubes 15, 15 'and 16 and 16'.
  • Fig. 1 shows that despite a four-prong arrangement for the driver of the truck, favorable visibility can be maintained, which often lead to great operating difficulties with other front-mounted devices.

Abstract

An attachment for stacker trucks in the form of a fork-arm or gripper adjuster, with a right-angled lifting frame (1) consisting of lateral cheeks (2) and a top and bottom supporting and guide tube (3, 4) connecting the cheeks as well as supporting beams (7, 8) held in such a way as to be displaceable in a sliding manner on the supporting and guide tubes (3, 4), accommodates tubular supports (15, 15'; 16, 16') in additional bores (13, 14), which tubular supports (15, 15'; 16, 16') are connected at their outer end to a fork arm (17, 18) or gripper element. The other respective end of the tubular supports (15, 15'; 16, 16') is provided with a stop (23) and can pushed free of contact through an additional recess (25) in the other respective supporting beam (7; 8). The fork arms (17, 18) can be displaced from a retracted position centrally in front of the lifting frame (1) into a position well outside the lifting frame (1) by the exclusively tubular guides with slight expenditure of force via piston/cylinder arrangements (19; 20). <IMAGE>

Description

Die Erfindung betrifft ein Anbaugerät für verfahrbare Stapler in Form eines Zinken- oder Klammerverstellgerätes, mit einem rechtwinkligen Hubrahmen, welcher aus seitlichen Wangen und einem oberen und einem unteren, die Wangen verbindenden Trag- und Führungsrohr besteht, bei dem die Trag- und Führungsrohre sich durch Bohrungen von zwei parallel zu den Seitenwangen verlaufende, längs der Tragrohre gleitend verschiebbare Tragbalken erstrecken, welche jeweils mit einem Zinken oder einem Klemmelement verbindbar sind.The invention relates to an attachment for movable stacker in the form of a tine or clamp adjusting device, with a right-angled lifting frame, which consists of side cheeks and an upper and a lower, the cheek connecting support and guide tube, in which the support and guide tubes through Bores from two parallel to the side cheeks, sliding along the support tubes slidable support beams, each of which can be connected with a prong or a clamping element.

Es sind Anbaugeräte der vorgenannten Art bekannt, welche insbesondere als Zinkenverstellgeräte ausgebildet sind und die sich durch ihren einfachen Aufbau bei großer Tragfähigkeit auszeichnen. Auf den Trag- und Führungsrohren, welche zweckmäßig als Blankstahl-Rundrohre ausgebildet sind, können die verschiebbaren Tragbalken mittels einfacher runder Buchsen geführt werden, so daß nur sehr geringe Reibungskräfte beim Verschieben der Tragbalken auftreten.Attachments of the aforementioned type are known, which are designed in particular as tine adjustment devices and which are distinguished by their simple construction with great load-bearing capacity. On the support and guide tubes, which are expediently designed as bright steel round tubes, the displaceable support beams can be guided by means of simple round bushings, so that only very low frictional forces occur when the support beams are moved.

Ein weiterer Vorteil der genannten Anbaugeräte besteht darin, daß der beschriebene Hubrahmen nur eine geringe Sichtbehinderung für den Fahrer des Staplers beim Hantieren mit dem Anbaugerät verursacht.Another advantage of the attachments mentioned is that the lifting frame described causes only a slight visual impairment for the driver of the truck when handling the attachment.

Bei den bekannten Anbaugeräten der beschriebenen Art sind die Tragbalken entweder jeweils mit einem Zinken oder mit einem Klammerelement (nachstehend als Klemmelement bezeichnet) ausgerüstet. Die Verstellbarkeit der Zinken bzw. Klemmelemente ist dabei innerhalb des Hubrahmens ohne Probleme und mit sehr geringem Kraftaufwand möglich.In the known attachments of the type described, the supporting beams are either equipped with a prong or with a clamp element (hereinafter referred to as a clamping element). The adjustability of the tines or clamping elements is within the lifting frame without problems and with very little Force possible.

Der Erfindung liegt die Aufgabe zugrunde, das Anbaugerät der einleitend genannten Art so weiterzubilden, daß eine seitliche Verstellbarkeit der Zinken bzw. Klemmelemente bis weit über den Hubrahmen hinaus ermöglicht wird.The invention has for its object to develop the attachment of the type mentioned in such a way that a lateral adjustability of the tines or clamping elements is made possible far beyond the lifting frame.

Zur Lösung vorstehender Aufgabe kennzeichnet sich das genannte Anbaugerät dadurch, daß in jedem Tragbalken seitlich sowie ober- oder unterhalb benachbart und parallel zu der jeweiligen Bohrung für die Trag- und Führungsrohre eine weitere Bohrung vorgesehen ist mit darin gleitend geführten, rohrförmigen Trägern, wobei jedem Tragbalken ein oberer und ein unterer Träger zugeordnet ist, daß ein Ende eines jeden Trägers mit einem parallel zu den Seitenwangen des Hubrahmens verlaufenden Zinken oder Klemmelement verbunden ist, und das andere Ende einen mit dem zugeordneten Tragbalken zusammenwirkenden Anschlag aufweist und mit diesem Ende berührungsfrei durch eine zusätzliche Ausnehmung in dem jeweilig anderen Tragbalken hindurchschiebbar ist, und daß an den Zinken oder Klemmelementen je eine Kolbenzylinderanordnung angreift, die anderendig mit der von dem jeweiligen Zinken oder Klemmelement entfernteren Seitenwange verbunden ist.To solve the above problem, the attachment is characterized in that in each support beam laterally and above or below adjacent and parallel to the respective bore for the support and guide tubes, a further bore is provided with slidably guided tubular supports, each support beam an upper and a lower support is assigned that one end of each support is connected to a tine or clamping element running parallel to the side cheeks of the lifting frame, and the other end has a stop which interacts with the associated support beam and is contactless with this end by an additional Recess can be pushed through in the respective other supporting beam, and that a piston-cylinder arrangement acts on the prongs or clamping elements, which is connected at the other end to the side cheek which is more distant from the respective prongs or clamping element.

Dadurch, daß die Tragbalken ihrerseits auf den Trag- und Führungsrohren verschiebbar gehalten sind und in den Tragbalken wiederum die rohrförmigen Träger längsverschieblich geführt sind, ergibt sich eine teleskopartige Führung für die Zinken bzw. Klemmelemente von einer Stellung, bei der die beiden Tragbalken unmittelbar nebeneinander und unmittelbar neben der lotrechten Mittellängsebene durch den Hubrahmen verlaufen, bis zu einer Position, in welcher die Tragbalken an den Wangen des Hubrahmens anschlagen und die in den Tragbalken geführten rohrförmigen Träger in ihrer Verschiebebewegung nach außen hin durch die Anschläge begrenzt werden.Characterized in that the supporting beams are in turn held displaceably on the supporting and guide tubes and in turn the tubular supports are guided in a longitudinally displaceable manner in the supporting beams, this results in a telescopic guidance for the tines or clamping elements from a position in which the two supporting beams run directly next to one another and directly next to the vertical central longitudinal plane through the lifting frame, to a position in which the supporting beams strike the cheeks of the lifting frame and the tubular supports guided in the supporting beams move outwards in their displacement movement be limited by the attacks.

Trotz dieser sehr geroßen Spannweiten für die Zinken bzw. Klemmelemente bleibt die für den Fahrer des Staplers erwünschte große Sichtfläche erhalten. Die gesamte Anordnung ermöglicht darüber hinaus außerordentlich kleine Vorbaumaße, durch welche die zulässige Belastung des Anbaugerätes nicht merkbar verringert wird. Die Breite des Anbaugerätes wird nicht erhöht, da eine Vergrößerung des Hubrahmens gegenüber der bekannten Konstruktion nicht erfolgt, so daß mit dem Anbaugerät trotz der Möglichkeit der weiten Spreizung der Zinken bzw. Klemmelemente auch in den gleichen schmalen Arbeitsgängen gearbeitet werden kann, wie dies bei herkömmlichen Anbaugeräten der Fall ist.Despite these very tight spans for the tines or clamping elements, the large visible area desired for the truck driver remains. The entire arrangement also enables extraordinarily small front dimensions, through which the permissible load on the attachment is not noticeably reduced. The width of the attachment is not increased, since the lifting frame is not enlarged compared to the known construction, so that despite the possibility of wide spreading of the tines or clamping elements, the attachment can also be used in the same narrow work steps as is the case with conventional ones Attachments is the case.

Zur Erzielung einer Verlängerung der Führungsflächen zwischen den Tragbalken und den sie tragenden Führungsrohren bzw. den Tragbalken und den darin geführten rohrförmigen Trägern ist es zweckmäßig, wenn die Tragbalken in Verlängerung der Bohrungen für die Führungsrohre zu den Seitenwangen hin weisende Vorsprünge und in Verlängerung der Bohrungen für die rohrförmigen Träger zum jeweils anderen Tragbalken weisende Vorsprünge aufweisen, in welchen mit den Bohrungen in dem Tragbalken fluchtende Bohrungen vorgesehen sind.In order to achieve an extension of the guide surfaces between the support beam and the guide tubes carrying it or the support beam and the tubular supports guided therein, it is expedient if the support beams extend in the bores for the guide tubes toward the side cheeks and extend the bores for the tubular supports have projections facing the respective other supporting beam, in which bores are provided which are aligned with the bores in the supporting beam.

Die genannten Vorsprünge der Tragbalken können praktisch nach Art rohrförmiger Ansätze vorgesehen sein, durch die sich die Führungsrohre bzw. rohrförmigen Träger hindurch erstrecken. Die an den Tragbalken in Verlängerung der Bohrungen für die Führungsrohre vorgesehenen Vorsprünge vermindern allerdings den Verschiebeweg der Tragbalken, da die genannten Vorsprünge mit den Seitenwangen des Hubrahmens zusammenwirken und hierdurch den maximalen Abstand der Tragrahmen bestimmen. Durch eine entsprechend längere Ausbildung der rohrförmigen Träger kann jedoch diese Verringerung des maximalen Verschiebeweges der Tragbalken ohne weiteres kompensiert werden.The above-mentioned projections of the supporting beams can be provided practically in the manner of tubular approaches through which the guide tubes or tubular supports extend. The projections provided on the support beams in the extension of the bores for the guide tubes, however, reduce the displacement of the support beams, since the said projections interact with the side cheeks of the lifting frame and thereby determine the maximum distance between the support frames. However, by reducing the length of the tubular supports, this reduction in the maximum displacement of the supporting beams can be easily compensated for.

Bei einer weiteren zweckmäßigen Ausbildung des Anbaugerätes ist zwischen jedem Zinken oder Klemmelement und dem zugeordneten benachbarten Tragbalken wenigstens eine Feder vorgesehen, welche den Zinken bzw. das Klemmelement in die von dem Tragbalken entfernte Stellung drängt, welche durch die an den rohrförmigen Trägern vorgesehenen und mit dem Tragbalken zusammenwirkenden Anschläge begrenzt ist.In a further expedient embodiment of the attachment, at least one spring is provided between each tine or clamping element and the associated adjacent supporting beam, which urges the prongs or the clamping element into the position remote from the supporting beam, which is provided by the tubular supports provided with and Support beam interacting stops is limited.

Durch die Anordnung der vorgenannten federn wird erreicht, daß bei Überführung der Zinken bzw. Klemmelemente in die Spreizstellung zunächst die Zinken bzw. Klemmelemente von den Tragbalken weg nach außen bewegt werden, während die Tragbalken auf den Trag- und Führungsrohren in ihrer angenäherten Position verharren. Erst wenn die Zinken bzw. Klemmelemente soweit nach außen bewegt worden sind, daß die Anschläge der rohrförmigen Träger mit den Tragbalkan zusammenwirken, erfolgt eine Mitnahme dar Tragbalkan in Richtung dar jeweiligen Seitenwangen des Hubrahmans bis die Tragbalken an diesen Seitenwangen anschlagen. Umgekehrt werden beim Zusammenfahren der Zinken bzw. Klemmelemente die jeweils zugeordneten Tragrahmen bis zum Erreichen ihrer zusammengefahrenen Position mitgenommen, ehe die Zinken bzw. Klemmelemente relativ zu den Tragbalkan bis in ihre endgültige zusammengeschobene Position überführt werden. Es bleibt also der Abstand zwischen dem jeweiligen Tragbalken und dem zugeordneten Zinken oder Klemmelement beim Zusammenschieben der Zinken bzw. Klemmelemente erhalten, bis die Tragbalken ihre zusammengefahrene Endposition erreichen.The arrangement of the aforementioned springs ensures that when the tines or clamping elements are moved into the spreading position, the tines or clamping elements are first moved away from the supporting beams, while the supporting beams remain in their approximate position on the supporting and guide tubes. Only when the tines or clamping elements have been moved outwards to such an extent that the stops of the tubular supports interact with the supporting beam, is the carrying beam carried in the direction of the respective side cheeks of the lifting frame until the supporting beams strike these side cheeks. Conversely, at Moving together the tines or clamping elements takes the respective associated support frames with them until they reach their retracted position before the tines or clamping elements are transferred relative to the supporting beam into their final, pushed-together position. The distance between the respective support beam and the associated tines or clamping element is thus maintained when the tines or clamping elements are pushed together until the support beams reach their final, retracted position.

Die für die vorgenannte Wirkungsweise vorgesehenen Federn können dabei zweckmäßig in den rohrförmigen Trägern angeordnet und als Druckfedern ausgebildet sein. Hierdurch ergibt sich eine raumsparende und geschützte Anordnung der Federn.The springs provided for the aforementioned mode of operation can expediently be arranged in the tubular supports and can be designed as compression springs. This results in a space-saving and protected arrangement of the springs.

Das neue Anbaugerät läßt sich in einfacher Weise als Vierzinkenverstellgerät ausbilden. Hierzu ist es lediglich notwendig, daß an den äußeren Enden der rohrförmigen Träger und auch an den Tragbalkan jeweils Zinken angeordnet werden.The new attachment can be easily designed as a four-prong adjustment device. For this it is only necessary that prongs are arranged on the outer ends of the tubular supports and also on the supporting beams.

Die Zeichnung gibt ein Ausführungsbeispiel der Erfindung wieder. In den Zeichnungen ist ein Anbaugerät in Form eines Zinkenverstellgerätes mit vier Zinken wiedergegeben.The drawing shows an embodiment of the invention. In the drawings, an attachment is shown in the form of a tine adjustment device with four tines.

Es zeigen:

Fig. 1
die Frontansicht das Zinkenverstellgerätes teils geschnitten in einer Stellung, in welcher die Zinken vollständig auseinandergefahren sind.
Fig. 2
die Anordnung nach Fig. 1 mit völlig zusammengefahrenen Zinken.
Fig. 3
eine Seitenansicht dar Anordnung nach den Figuren 1 und 2.
Show it:
Fig. 1
the front view of the tine adjusting device partially cut in a position in which the tines have completely moved apart.
Fig. 2
the arrangement of FIG. 1 with the tines completely retracted.
Fig. 3
a side view of the arrangement of Figures 1 and 2.

Das in den Figuren wiedergegebene Anbaugerät weist einen insgesamt mit 1 bezeichneten Hubrahmen auf, welcher aus seitlichen Wangen 2 und einem oberen und unteren Trag- und Führungsrohr 3 bzw. 4 besteht. Die Trag- und Führungsrohre 3 und 4 sind jeweils fest mit den oberen und unteren Enden der Wangen 2 verbunden.The attachment shown in the figures has a lifting frame designated overall by 1, which consists of side cheeks 2 and an upper and lower support and guide tube 3 and 4. The support and guide tubes 3 and 4 are each firmly connected to the upper and lower ends of the cheeks 2.

An dem Hubrahman 1 sind rückwärtig Traghaken 5 und 6 angeordnet, die zum Anhängen des Anbaugerätes an die Hubeinrichtung des Staplers dienen.On the Hubrahman 1 rear hooks 5 and 6 are arranged, which are used to attach the attachment to the lifting device of the truck.

Auf den Trag- und Führungsrohran 3 und 4 sind parallel zu den Seitanwangen 2 des Hubrahmens 1 verlaufende Tragbalken 7 und 8 längsverschieblich gehalten. In den dargestellten Figuren sind die Tragbalken 7 und 8 mit daran gehaltenen Zinken 9 und 10 versehen, die jedoch bei einem normalen Zinkenverstellgerät mit zwei Zinken entfallen.On the support and guide tube 3 and 4 parallel to the side cheeks 2 of the lifting frame 1 extending support beams 7 and 8 are held longitudinally. In the figures shown, the support beams 7 and 8 are provided with prongs 9 and 10 held thereon, but these are omitted in a normal tine adjusting device with two prongs.

Die Tragbalken 7 und 8 sind zur Führung auf den Trag- und Führungsrohren 3 und 4 mit entsprechenden Bohrungen und darin angeordneten Führungsbuchsen versehen. In der Fig. 1 sind durch die teilweise Schnittdarstellung die oberen Bohrungen 11 und 12 und die darin gehaltenen Führungsbuchsan 11a und 12a erkennbar. Im unteren Teil der Tragbalken 7 und 8 sind für die Aufnahme des unteren Trag- und Führungsrohres 4 in gleicher Weise Bohrungen 11 und 12 vorgesehen.The support beams 7 and 8 are provided for guidance on the support and guide tubes 3 and 4 with corresponding bores and guide bushes arranged therein. In Fig. 1, the upper bores 11 and 12 and the guide bushing 11a and 12a held therein can be seen through the partial sectional view. In the lower part of the support beams 7 and 8 bores 11 and 12 are provided in the same way for receiving the lower support and guide tube 4.

In den Tragbalken 7 und 8 sind seitlich oberhalb bzw. seitlich unterhalb benachbart und parallel zu den jeweiligen Bohrungen 11 bzw. 12 weitere Bohrungen vorgesehen, mit darin gleitend geführten rohrförmigen Trägern, wobei jedem Tragbalken 7 bzw. 8 ein oberer und ein unterer Träger zugeordnet ist.In the supporting beams 7 and 8, laterally above and laterally below and adjacent to and parallel to the respective bores 11 and 12, further bores are provided, with tubular slides therein Carriers, each support beam 7 and 8 being assigned an upper and a lower support.

In der Fig. 1 sind in dem geschnittenen Teil die weiteren Bohrungen 13 bzw. 14 mit den darin angeordneten Buchsen 13a und 14a erkennbar. Durch diese Bohrungen 13 bzw. 14 erstrecken sich die oberen rohrförmigen Träger 15 bzw. 16. Die unteren rohrförmigen Träger, welche den rohrförmigen Trägern 15 und 16 entsprechen und in gleicher Weise in den Tragbalkan 7 bzw. 8 geführt sind, sind in der Fig. 1 mit 15' und 16' bezeichnet. An ihren nach außen weisenden Enden sind die Führungsrohre 15 und 15' fest mit einem äußeren Zinken 17 und die Führungsrohre 16 und 16' mit einem weiteren äußeren Zinken 18 fest verbunden. An den äußeren Zinken 17 und 18 greifen jeweils Kolbenzylinderanordnungen 19 und 20 an, deren anderes Ende mit der von dem jeweiligen äußeren Zinken 17 bzw. 18 entfernteren Wange 2 des Hubrahmens verbunden ist.1, the further bores 13 and 14 with the bushings 13a and 14a arranged therein can be seen in the cut part. The upper tubular supports 15 and 16 extend through these bores 13 and 14 respectively. The lower tubular supports, which correspond to the tubular supports 15 and 16 and are guided in the same manner in the supporting beams 7 and 8, are shown in FIG. 1 designated 15 'and 16'. At their outwardly facing ends, the guide tubes 15 and 15 'are firmly connected to an outer prong 17 and the guide tubes 16 and 16' are firmly connected to a further outer prong 18. Piston-cylinder arrangements 19 and 20 engage the outer prongs 17 and 18, the other end of which is connected to the cheek 2 of the lifting frame, which cheek is more distant from the respective outer prongs 17 and 18.

In dem wiedergegebenen Beispiel sind die Träger (nachstehend als Führungsrohre bezeichnet) 15 und 15' seitlich und oberhalb der Trag- und Führungsrohre 3 und 4 angeordnet, während die Führungsrohre 16 und 16' seitlich unterhalb der genannten Trag- und Führungsrohre 3 und 4 verlaufen.In the example shown, the carriers (hereinafter referred to as guide tubes) 15 and 15 'are arranged on the side and above the support and guide tubes 3 and 4, while the guide tubes 16 and 16' laterally below the support and guide tubes 3 and 4.

Zur Erzielung größerer Gleit- und Führungsflächen der Tragarme 7 und 8 auf den Trag- und Führungsrohren 3 und 4 sowie für die Aufnahme der Führungsrohre 15 und 15' bzw. 16 und 16' in den Tragrahmen weisen diese in Verlängerung der jeweiligen Bohrungen für die genannten Rohre Vorsprünge auf, durch die sich die jeweiligen Bohrungen für die genannten Rohre hindurch erstrecken. Die Vorsprünge für die verlängerte Führung dar Trag- und Führungsrohre 3 und 4 sind in der Zeichnung mit 21 bezeichnet. Diese Vorsprünge weisen zu den Seitenwangen 2 des Hubrahmens hin. Die Vorsprünge für die verlängerte Führung der Führungsrohre 15 und 15' sowie 16 und 16' sind mit 22 bezeichnet und weisen in die andere Richtung. Alle Vorsprünge 21 und 22 sind in dem Beispiel hülsenförmig gestaltet und können einstückig mit den Tragrahmen 7 und 8 hergestellt sein. In diesen hülsenförmigen Vorsprüngen sind wiederum Führungsbuchsen vorgesehen, wie aus dem oberen Teil der Schnittdarstellung der Fig. 1 hervorgeht.To achieve larger sliding and guide surfaces of the support arms 7 and 8 on the support and guide tubes 3 and 4 and for the reception of the guide tubes 15 and 15 'or 16 and 16' in the support frame, these have an extension of the respective holes for the above Tubes protrusions through which the respective bores for said tubes extend. The projections for the extended guidance of the support and guide tubes 3 and 4 are designated 21 in the drawing. These projections point to the side cheeks 2 of the lifting frame. The lead for the extended Guide of the guide tubes 15 and 15 'and 16 and 16' are designated 22 and point in the other direction. In the example, all the projections 21 and 22 are sleeve-shaped and can be produced in one piece with the support frames 7 and 8. Guide bushings are again provided in these sleeve-shaped projections, as can be seen from the upper part of the sectional view in FIG. 1.

Die Führungsrohre 15 und 15' sowie 16 und 16' sind an ihren, den Zinken 17 und 18 abgekehrten Enden jeweils mit einem Anschlag 23 versehen, welcher mit dem jeweiligen Vorsprung 22 zusammenwirkt und den Ausschubweg der Zinken 17 und 18 begrenzt.The guide tubes 15 and 15 'and 16 and 16' are each provided with a stop 23 at their ends facing away from the prongs 17 and 18, which cooperates with the respective projection 22 and limits the extension path of the prongs 17 and 18.

Um die Tragbalken 7 und 8 sowie die Zinken 17 und 18 in eine möglichst enge zusammengefahrene Position gemäß Fig. 2 überführen zu können, ist es notwendig in den Tragarmen 7 und 8 weitere Bohrungen vorzusehen, durch welche sich die Führungsrohre mit ihren den Zinken 17 bzw. 18 abgewandtan Enden hindurch erstrecken können. So sind in dem Tragbalken 7 die zusätzlilchen Bohrungen 24 und in dem Tragbalken 8 die zusätzlichen Bohrungen 25 angeordnet. Diese sind gemäß der Darstellung in Fig. 3 mit zusätzlichen Aussparungen 25a versehen, welche den Durchtritt der Anschläge 23 bzw. der noch zu beschreibenden Wiederlager 30 ermöglichen die jeweils mit den hülsenförmigen Vorsprüngen 22 fest verbunden sind und mit einer Feder 31 zusammenwirken.In order to be able to transfer the support beams 7 and 8 as well as the tines 17 and 18 into a position as close as possible as shown in FIG 18 facing away at the ends. The additional holes 24 are arranged in the support beam 7 and the additional holes 25 are arranged in the support beam 8. According to the illustration in FIG. 3, these are provided with additional cutouts 25a, which allow the stops 23 or the abutments 30 to be described, which are each firmly connected to the sleeve-shaped projections 22 and cooperate with a spring 31.

Die Federn 31 sind als Druckfedern ausgebildet und erstrecken sich durch die jeweils zugeordneten Führungsrohre 15' bzw. 16' bis zu den Zinken 17 bzw. 18. Die Federn 31 haben das Bestreben, den jeweiligen Zinken 17 bzw. 18 in eine von dem benachbarten Tragbalken 7 bzw. 8 entfernte Stellung zu drängen.The springs 31 are designed as compression springs and extend through the respectively assigned guide tubes 15 'or 16' to the prongs 17 or 18. The springs 31 endeavor to meet the respective requirements To push tines 17 and 18 in a position removed from the adjacent support beam 7 and 8 respectively.

Die Wirkungsweise der in den Fig. dargestellten Vorrichtung wird anhand einer Übeführung der Zinken 17 und 18 aus der in Fig. 1 wiedergegbene Position in die Stellung gemäß Fig. 2 im einzelnen beschrieben.The mode of operation of the device shown in the figures is described in detail on the basis of the tines 17 and 18 being moved from the position shown in FIG. 1 to the position shown in FIG. 2.

Die Zylinderanordnungen 19 und 20, welche jeweils beidseitig beaufschlagbar sind, werden durch entsprechende Drucksteuerung so beaufschlagt, daß sie die Zinken 17 und 18 aufeinander zu bewegen. Durch die Federn 31 bleibt während des Zusammenfahrens dar Zinken 17 und 18 der Abstand dieser Zinken von dem jeweiligen Tragbalkan 7 und 8 erhalten, d. h. die Tragbalken 7 und 8 werden durch die Anordnung der Federn 31 und der Wiederlager 30 gemeinsam mit den Zinken 7 und 8 in Richtung zu der Mittellängsebene 32 bewegt. Im Zuge dieser Bewegung erstrecken sich die Federn 31 und Wiederlager 30 durch die Bohrungen 24 und 25 in den Tragbalken 7 und 8 bis die Tragbalken eine Position erreichen, in welcher die Vorsprünge 22 an dem jeweils gegenüberliegenden Tragbalken anliegen. Es ist dies die Stellung, welche die Tragbalken 7 und 8 in der Fig. 2 bereits einnehmen. Der bisher beschriebene Bewegungsablauf erfolgt ausschließlich durch eine Gleitbewegung der Tragbalken 7 und 8 auf den Trag- und Führungsrohren 3 und 4. Durch die weitere Einwirkung der kolbenzylinderanordnungen 19 und 20 werden die Zinken 17 und 18 weiter in Richtung auf die Tragbalken 7 und 8 bewegt, wobei dei Führungsrohre 15 und 15' sowie 16 und 16' in den entsprechenden Bohrungen 12 und 13 der Tragbalken 7 und 8 gleiten. Dabei werden gleichzeitig die Federn 31 gespannt. Im Zuge der Annäherung der Zinken 17 und 18 gelangen die Führungsrohre 15 und 15' bzw. 16 und 16' durch die entsprechenden Bohrungen 24 bzw. 25 des dem jeweiligen Zinken weiter entfernten Tragbalken 7 bzw. 8 bis die Zinken 17 und 18 an den Tragbalken 7 und 8 zur Anlage kommen wie dies in Fig. 2 wiedergegeben ist.The cylinder arrangements 19 and 20, which can be acted upon on both sides, are acted upon by appropriate pressure control in such a way that they move the tines 17 and 18 towards one another. The springs 31 maintain the distance of these tines from the respective support beam 7 and 8 during the movement of the prongs 17 and 18, ie the support beams 7 and 8 are arranged together with the prongs 7 and 8 by the arrangement of the springs 31 and the abutment 30 moved towards the central longitudinal plane 32. In the course of this movement, the springs 31 and abutments 30 extend through the bores 24 and 25 in the support beams 7 and 8 until the support beams reach a position in which the projections 22 bear against the respectively opposite support beam. This is the position which the supporting beams 7 and 8 already assume in FIG. 2. The movement sequence described so far takes place exclusively by a sliding movement of the support beams 7 and 8 on the support and guide tubes 3 and 4. Due to the further action of the piston-cylinder arrangements 19 and 20, the tines 17 and 18 are moved further in the direction of the support beams 7 and 8, the guide tubes 15 and 15 'and 16 and 16' slide in the corresponding bores 12 and 13 of the supporting beams 7 and 8. The springs 31 are tensioned at the same time. In the course of the approach of the prongs 17 and 18, the guide tubes 15 and 15 'or 16 and 16' pass through the corresponding ones Bores 24 and 25 of the supporting beam 7 and 8, which are further away from the respective tine, until the prongs 17 and 18 come to rest against the supporting beam 7 and 8, as shown in FIG. 2.

Bei umgekehrter Betätigung der Kolbenzylinderanordnungen 19 und 20 werden durch die Wirkung der Federn 31 zunächst die Zinken 17 und 18 in eine Position überführt, in der die Anschläge 23 an den Vorsprüngen 22 des zugeordneten Tragbalkens 7 bzw. 8 anliegen, ehe im weiteren Verlauf die Spreizbewegung die Tragbalken 7 und 8 unter Aufrechterhaltung ihres Abstandes von dem jeweils nach außen hin benachbarten Zinken 17 bzw. 18 mitgenommen werden.When the piston-cylinder arrangements 19 and 20 are actuated in reverse, the action of the springs 31 initially transfers the prongs 17 and 18 into a position in which the stops 23 bear against the projections 22 of the associated support beams 7 and 8 before the spreading movement continues the support beams 7 and 8 are taken along while maintaining their distance from the respectively adjacent tines 17 and 18.

Um die beschriebenen Bohrungen für die gleitende Führung der Tragbalken 7 auf den Trag- und Führungsrohren 3 und 4 sowie für die Aufnahme der Führungsrohre 15 und 15' bzw. 16 und 16' und die Durchtrittsbohrungen für diese Führungsrohre in dem jeweils anderen Tragbalken auf einem Raum unterbringen zu können, ist jeder Tragbalken 7 bzw. 8 in seinem oberen und unteren Bereich in Richtung zu dem Hubrahman 1 hin verstärkt ausgebildet, d. h. jeder Tragrahmen 7 bzw. 8 weist eine entsprechende Ausladung 7a bzw. 8a auf. Diese Ausgestaltung trägt mit dazu bei, daß sehr geringe Vorbaumaße trotz dar notwendigen Bohrungen in den Tragarmen 7 bzw. 8 eingehalten werden können.To the holes described for the sliding guidance of the support beam 7 on the support and guide tubes 3 and 4 and for receiving the guide tubes 15 and 15 'or 16 and 16' and the through holes for these guide tubes in the other support beam in a room To be able to accommodate, each support beam 7 and 8 is formed in its upper and lower region towards the Hubrahman 1 reinforced, d. H. each support frame 7 or 8 has a corresponding projection 7a or 8a. This configuration contributes to the fact that very small stem dimensions can be maintained despite the necessary holes in the support arms 7 and 8.

Es ist ersichtlich, daß statt der äußeren Zinken 17 und 18 auch Klemmbacken an den Führungsrohren 15, 15' und 16 sowie 16' befestigt sein können.It can be seen that, instead of the outer prongs 17 and 18, clamping jaws can also be fastened to the guide tubes 15, 15 'and 16 and 16'.

Bei einer Ausführung als Zinkenverstellgerät können nur die beiden äußeren Zinken 17 und 18 vorgesehen sein, während zur Bildung eines Vierzinkengerätes die Tragarme 7 und 8 gemäß den Ausführungsbeispiel ebenfalls mit Zinken zu versehen sind.In the case of a design as a tine adjusting device, only the two outer tines 17 and 18 can be provided, while the support arms 7 and 8 according to the exemplary embodiment are likewise to be provided with tines to form a four-tine device.

Insbesondere die Fig. 1 läßt erkennen, daß trotz einer Vierzinkenanordnung für den Fahrer des Staplers günstige Sichtverhältnisse aufrecht erhalten werden können, die bei anderen Vorbaugeräten häufig zu großen Bedienungsschwierigkeiten führen.In particular, Fig. 1 shows that despite a four-prong arrangement for the driver of the truck, favorable visibility can be maintained, which often lead to great operating difficulties with other front-mounted devices.

Claims (5)

  1. An attachment for travelling stackers in the form of a prong or clasp adjusting device with a rectangular lifting frame (1), comprising side pieces (2) and an upper and a lower supporting and guiding tube (3, 4) connecting the side pieces, wherein the supporting and guiding tubes extend through bores (11, 12) in two supporting beams (7; 8) which are parallel with the side pieces, which can be displaced with sliding motion along the supporting and guiding tubes and which may each be joined to a prong (9; 10) or a clasp element, characterised in that an additional bore (13; 14) is provided in each supporting beam (7; 8) laterally above or laterally below and parallel with the respective bore (11; 12) for the supporting and guiding tubes (3; 4), with tubular bearers (15,15'; 16,16') mounted to slide in the bore, an upper and a lower bearer being assigned to each beam, that one end of each bearer is joined to a prong (17; 18) or clasp element extending parallel with the side pieces (2) of the lifting frame (1), and the other end has a stop (23) interacting with the associated supporting beam, the latter end being adapted to slide through an additional aperture (25) in the other supporting beam without touching it, and that the prongs or clasp elements are each acted on by a piston-cylinder arrangement (19; 20), which is joined at the other end to the side piece (2) further away from the respective prong (17; 18) or clasp element.
  2. An attachment according to claim 1, characterised in that the supporting beams (7; 8) have projections (21) directed towards the side pieces (2) forming an extension of the bores (11; 12) for the guiding tubes (3; 4), and projections (22) directed towards the respective other supporting beam forming an extension of the bores (13; 14) for the tubular bearers (15,15'; 16,16'), bores aligned with those in the supporting beam being provided in the projections.
  3. An attachment according to claim 1 or 2, characterised in that at least one spring (31) is provided between each prong (17; 18) or clasp element and the associated adjacent supporting beams (7; 8), which spring pushes the prong or clasp element into the position remote from the beam, the position being limited by the stops (23) provided on the tubular bearers (15,15'; 16,16') and interacting with the supporting beams.
  4. An attachment according to claim 3, characterised in that the springs (31) are arranged in the tubular bearers (15,15'; 16,16') and are in the form of compression springs.
  5. An attachment according to any of claims 1 to 4, characterised in that it is in the form of a four-prong adjusting device.
EP92108662A 1991-05-31 1992-05-22 Attachment for stacker trucks in the form of a tine- or gripper-adjuster Expired - Lifetime EP0515996B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4117753A DE4117753A1 (en) 1991-05-31 1991-05-31 ATTACHMENT DEVICE FOR TRAFFICABLE STACKER IN THE FORM OF A TINE OR CLAMP ADJUSTMENT DEVICE
DE4117753 1991-05-31

Publications (2)

Publication Number Publication Date
EP0515996A1 EP0515996A1 (en) 1992-12-02
EP0515996B1 true EP0515996B1 (en) 1995-04-05

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Application Number Title Priority Date Filing Date
EP92108662A Expired - Lifetime EP0515996B1 (en) 1991-05-31 1992-05-22 Attachment for stacker trucks in the form of a tine- or gripper-adjuster

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EP (1) EP0515996B1 (en)
AT (1) ATE120717T1 (en)
DE (2) DE4117753A1 (en)
DK (1) DK0515996T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321446C2 (en) * 1993-06-29 1996-02-15 Meyer Hans H Gmbh Attachment especially for movable forklifts with side-shifting forks
DE4332185A1 (en) * 1993-09-22 1995-03-23 Kaup Gmbh & Co Kg Attachment for a shovel loader with laterally displaceable load-lifting members
DE4433050B4 (en) * 1994-09-16 2004-01-29 Kaup GmbH & Co KG Gesellschaft für Maschinenbau Attachment for lift truck with clamp arms that can be pressed onto the payload units
NL2004999C2 (en) 2010-06-29 2011-12-30 Rogama B V Load-handling apparatus adapted to be mounted on an elevatable lift carriage of a lift truck as well as a lift truck comprising such a load-handling apparatus.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788148A (en) * 1953-08-07 1957-04-09 Baker Raulang Co Load carrying industrial truck
AT342500B (en) * 1976-03-15 1978-04-10 Krapinger Heinz FORK FOR FORKLIFT
DE3301595C2 (en) * 1983-01-19 1985-01-31 Hans H. Meyer GmbH Maschinenbau, 3320 Salzgitter Attachment for mobile forklifts in the form of a fork positioner with sideshift and four prongs
DE3400916A1 (en) * 1984-01-12 1985-07-25 Schulte-Henke GmbH, 5778 Meschede Arm attachment for mobile stackers
DE3420005C2 (en) * 1984-05-29 1994-10-06 Kaup Gmbh & Co Kg Fork adjustment device for forklifts
DE3702918C2 (en) * 1987-02-02 1994-11-17 Kaup Gmbh & Co Kg Front-mounted device for a forklift truck with six fork tines horizontally displaceable on a supporting body
DE3828449C2 (en) * 1988-08-22 1996-02-29 Kaup Gmbh & Co Kg Fork adjustment device for a forklift with six forks
DE8815272U1 (en) * 1988-12-08 1989-02-09 Durwen Maschinenbau Gmbh, 5472 Plaidt, De

Also Published As

Publication number Publication date
DE59201809D1 (en) 1995-05-11
DK0515996T3 (en) 1995-06-26
ATE120717T1 (en) 1995-04-15
EP0515996A1 (en) 1992-12-02
DE4117753A1 (en) 1992-12-03

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