EP0909855B1 - Loader vehicle - Google Patents

Loader vehicle Download PDF

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Publication number
EP0909855B1
EP0909855B1 EP98119187A EP98119187A EP0909855B1 EP 0909855 B1 EP0909855 B1 EP 0909855B1 EP 98119187 A EP98119187 A EP 98119187A EP 98119187 A EP98119187 A EP 98119187A EP 0909855 B1 EP0909855 B1 EP 0909855B1
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EP
European Patent Office
Prior art keywords
driver
vehicle according
enclosure
loader vehicle
loader
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98119187A
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German (de)
French (fr)
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EP0909855A2 (en
EP0909855A3 (en
Inventor
Gordon Edward Miller
David Arthur Doering
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Deere and Co
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Deere and Co
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Publication of EP0909855A2 publication Critical patent/EP0909855A2/en
Publication of EP0909855A3 publication Critical patent/EP0909855A3/en
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Publication of EP0909855B1 publication Critical patent/EP0909855B1/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16Cabins, platforms, or the like, for drivers
    • E02F9/166Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/006Pivot joint assemblies
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F9/00Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08Superstructures; Supports for superstructures
    • E02F9/0833Improving access, e.g. for maintenance, steps for improving driver's access, handrails

Definitions

  • the invention relates to a loader vehicle with a frame structure, the transversely spaced frame side parts contains.
  • a lifting device of the loader vehicle has two extending in the vehicle longitudinal direction near the frame side parts Lifting arms on. From the frame side parts extend upwards two transversely spaced, between the Lifting arms with spaced post elements.
  • a Cab compartment trim arranged before and between the post elements.
  • joint structures in which the Cab compartment cladding is pivotally mounted so that they between a first operating position and a second can swing pivoted up and rear position.
  • Skid steer loaders so-called skid steer loaders or skid steer loaders, are small work machines with hydraulically driven Lifting arms articulated at their front ends mount mountable blades or other work tools. Of the middle section of the loader carries a driver's platform or -cabin.
  • loader components such as a hydrostatic transmission, steering linkage, hydraulic lines and Valves for driving the lifting arms, blades and additional functions, Hydraulic lines for the wheel motor drives and various electrical harnesses and connections, accommodated.
  • loader components such as a hydrostatic transmission, steering linkage, hydraulic lines and Valves for driving the lifting arms, blades and additional functions, Hydraulic lines for the wheel motor drives and various electrical harnesses and connections, accommodated.
  • Hydraulic lines for the wheel motor drives and various electrical harnesses and connections
  • the lift arms of the skid steer loader are along its side They can provide lateral access to the components block. Therefore, access from the front is often preferred. However, if it is a loader in which the Driver's cab can be moved forwards or tilted forwards, is excluded access from the front, so that the lift arms must be raised to provide access from the side of the Loader out. However, if the loader hydraulics is not ready, the lift arms are not easy so that access to the components becomes difficult. To overcome this problem, have some skid steer loaders a tilting back to the driver's cab.
  • skid steer loader with lift arms equip that lift vertically so that the vertical height the bucket and its reach are maximized forward can and it is easier to load the loading shovel into a truck to empty.
  • both the front and the rear ends of the lift arms so determined that the blade along a substantially vertical path.
  • the rear areas are articulated connected with handlebars, which is a vertical lifting of the rear Allow ends of the lifting arms.
  • handlebars are sometimes on vertically upstanding frame structures of the loader attached to increase the vertical reach of the arms. Since the handlebars also allow a pivoting movement of the arms, The arms can move forward when lifting what the ability to load over the side of a truck in these to empty, improved.
  • Such solutions are by the US-A-5,609,464 and GB-A-2 278 826.
  • both the lift arms as well as the loading bucket and their load must be able to she trained reinforced with one or more cross members become.
  • the lifting arms carrying the lifting arms often with one or more transversely extending cross members stiffened.
  • the mentioned cross member can when pivoting the driver's cab to the rear pose an obstacle and the extent to which pivoting up and down is possible to significantly limit.
  • the available working area under the rear raised Cab which is responsible for maintenance and repairs to the Vehicle components is available, limited.
  • the object underlying the invention is seen therein a generic loader vehicle in such a way that the overcome problems mentioned above.
  • a skid steer loader with a cab to have, which swivel up and back leaves sufficient and convenient access to the Vehicle components from the front of the vehicle provide.
  • This is especially desirable when the loader vehicle connecting elements between its frame structure and rear portions of the lift arm having a allow vertical lifting of the lifting arms.
  • support post for fastening the Hubarmitatisetti which make it possible for the Lifting the lift arms beyond the loader frame, their vertical Height and reach is maximized forward, so that Tipping material from the side of a truck into it leaves.
  • a stiffening component provide stabilized by the Hublenker and posts and which the use of less expensive trained support structures for the posts allows. It is Furthermore, it is desirable to hang the cab so that their bottom and rear area are beyond the access of the Move workspace up and not through Disables cross members in their upward and backward movement or be limited. Furthermore, it is desirable that Parts of the driver's cab, in particular the size of their frame parts, keep as small as possible. It is also desirable To provide power means, the lifting of the cab support and work well even if the hydraulic or electrical power system should collapse. It would also be an advantage, the releasable locking allow the driver's cab in its raised position.
  • a skid steer loader has a vertical Liftable lifting device with two lifting arms and one Cab compartment trim, in particular a driver's cab, on, which can then be swung up and back, when the hydraulics and electrics of the loader complete fails.
  • the cab is with its rear area at the top End of an upright supporting component, in particular a Tragpfostens, articulated so that a high pivot point for the upward pivoting of the cab results and the Poles during pivoting as bearing frame parts for serve the driver's cab.
  • the joint structures are at the top, Rear area of the cab mounted so that when Swinging up the floor and the rear area of the Driver's cab essentially lifted off the loader components and a sufficient work area for Expose service work.
  • the Hublenker which is a vertical Lifting the lift arms allow are also on the support post hinged, in such a way that their vertical lifting height and reach forward to maximize and simplify the design becomes. Between the posts and the ends of the Hublenker or the ends of the lifting arms is a stiffening cross member arranged, which stabilizes the posts and Hublenker, so that can minimize the required post strength.
  • the articulated structures of the driver's cab are nearby and something in front of the cross member, so that a collision between Driver's cab and cross member is avoided when the Driver's cab for access to the vehicle components is pivoted above and behind.
  • the cross member and the Joint structures for the cab and the Hinges for the Hublenker are located nearby the upper end of the support posts. This results in a improved view to the rear.
  • FIGs 1, 2 and 3 illustrate a skid steer loader 10, also called slip-loader or skid steer, with vertical lifting arms 12 and a pivotable backwards Cabin panel 14, which also serves as a complete cab could be trained.
  • a skid steer loader 10 also called slip-loader or skid steer
  • vertical lifting arms 12 and a pivotable backwards Cabin panel 14, which also serves as a complete cab could be trained.
  • On the vehicle frame 16 are an im rear vehicle area suspended engine 18 and front and Rear wheels 20, 22 attached.
  • the rear wheels 22 can be independently drive. They are with their associated front wheels 20 through not shown chain drives coupled.
  • the driver compartment panel 14 is in the middle, between the lifting arms 12 worn lying area.
  • the lifting arms 12 are formed so that they at their front Ends loading buckets or similar tools can accommodate. Their attachment to the frame 16 leaves a substantially vertical lifting too. To enable such a movement each of the two lifting arms 12 is at a first Hublenkerelement 26, which is located between a middle Area of the frame 16 and a lower rear portion 28th of the lifting arm 12 extends, pivotally mounted. Second, Upper link members 30 are arcuate. she articulated connect the upper, rear portion 32 of the associated lifting arm 12 with one of the upright left or right post 34, which is in the rear of the vehicle frame 16 are fixed and protrude from this upwards. Between the vehicle frame 16 and each lift arm 12 is a Hydraulic cylinder 36 for raising and lowering the lifting arm 12th arranged.
  • the driver compartment trim 14 which is best seen in FIGS 4, contains a base 38, also basic construction called, which essentially has a bottom 40 with integrated Side and rear walls 42, 44, tubular side parts 46, which protrude from the side walls 42 and up to the Posts 34 extend, a roof 48 with a forward projecting tubular frame 50 and side guards 52 has.
  • the upright posts 34 in the rear of the Loaders 10 form an additional rollover protection structure for the driver's compartment panel 14.
  • the driver's compartment panel 14 further includes a seat 54 secured to the base 38 and various measuring instruments. In the area of the front edge the driver compartment cover 14 protrude from the vehicle frame 16 from a respective control lever 56, 58 for the left and the right Wheels up. Fastening means in the form of screws 60 and nuts 61 (see Figs. 3 and 10) secure each side of the Cab compartment trim 14 on the vehicle frame 16 and hold they firmly in their operating position.
  • Figures 3 and 4 show the loader 10 with a Cabin trim 14, located in its upper, to the rear pivoted position and thus access to various charging components housed under it.
  • the components are one hydrostatic transmission 62, steering linkage, which the Control lever 56, 58 with the hydrostatic transmission 62nd connect, hydraulic valves 64 with connected lines for driving the lifting arms 12, the loading shovel 24 and additional loader functions, hydraulic lines for the Wheel motor drives and various electrical harnesses and Links.
  • each hinge structure 66 includes a lifting eye 68, the one of the tubular side parts 46 is attached and of stick it out to the rear.
  • screws 70 are the Support eyelets 68 between the inner wall 72 and the outer wall 74 of the respective post 34 held. Every screw 70 has a thread at one end.
  • nuts are the Screws 70 on the inner walls 72 and the outer walls 74th the post 34 secured.
  • a reinforcing cross member 78 extends between the upper ends of the posts 34 just behind the Articulated structures 66. It has according to a preferred embodiment a substantially C-shaped profile on which a cover 79th is attached. The opposite ends of the reinforcement cross member 78 abut against the inner walls 72 of the posts 34 and are welded at 80 with these (see Fig. 6). Of the Reinforcement cross member 78 stiffened not only the post 34th but also stabilizes the upper ends of the link elements 30 and makes cross member between the upper ends of the Handlebar elements 30 superfluous.
  • the loader 10 is used as well as similar known loaders equipped with vertical lifting arms 12 are, d. h., it is possible to pick up material and to Dispose of waste on one side in a truck. Should occur with the loader 10 mechanical problems or Maintenance work will be necessary, providing access to Vehicle components, which under the cab compartment require, so the operator can be simple Move the cab panel up and into the rear in the Swivel Fig. 3 illustrated position.
  • the Displacement movement of the control lever 56, 58 is determined by the Interaction between the base of the ground 40 and the Eccentric discs 96 which are connected to the rotary shafts 98 of the control lever 56, 58 are fixed causes.
  • This feature is the subject a European patent application with the priority US 953,560 of October 17, 1997, the disclosure of which is hereby incorporated by reference is taken to avoid repetition.
  • locking means which are arranged on at least one of the gas cylinders 94, be pressed to the driver compartment panel 14 in their to carry raised position.
  • the locking means are in In connection with a gas cylinder 94 in FIGS. 8 and 9 shown in more detail. They contain a lower one at the lower end Sleeve 102 a seat 100, which endeavors is the Gas cylinder rod 104 including an angle to the lower Sleeve 102 to wear.
  • the seat 100 urges the lower Sleeve 102 from its aligned with an upper sleeve 106 Location.
  • the locking means the gas cylinder 94 released from their engagement, so that the gas cylinder 94 can contract. This will achieved by the lower cylinder sleeve 102 against the Preload the seat 100 inward to the cylinder rod 104 is pressed, so that the lower sleeve 102 with the upper Sleeve 106 is aligned. Once the sleeves 102, 106 are aligned, will pressed the cab compartment 14 down, the Retract gas cylinder 94.
  • the joint structures for the driver compartment trim 14 and the lifting arms mounted very high on the usual support post are rich, the lifting arms 12 when lifting very high and after at the front so that loads are dumped over the side of trucks can be. Furthermore, thereby the driver's compartment lining 14 raised far above the loader components as well the view to the rear can be improved. Compared to previous ones Vehicles is a smaller number of less expensive Components required for the production of the loader.

Description

Die Erfindung betrifft ein Laderfahrzeug mit einer Rahmenstruktur, die quer zueinander beabstandete Rahmenseitenteile enthält. Eine Hubvorrichtung des Laderfahrzeugs weist zwei sich in Fahrzeuglängsrichtung nahe der Rahmenseitenteile erstreckende Hubarme auf. Von den Rahmenseitenteilen aus erstrecken sich nach oben zwei quer zueinander beabstandete, zwischen den Hubarmen mit Abstand liegende Pfostenelemente. Im wesentlichen vor und zwischen den Pfostenelementen ist eine Fahrerraumverkleidung angeordnet. Im oberen Bereich der Pfostenelemente sind Gelenkstrukturen angeordnet, an denen die Fahrerraumverkleidung derart schwenkbar befestigt ist, daß sie sich zwischen einer ersten Betriebsstellung und einer zweiten nach oben und hinten angehobenen Stellung verschwenken läßt. Ein derartiges Laderfahrzeug, das den Oberbegriff des Anspruchs 1 offenbart, ist aus der US-A-4, 811, 983 bekannt. The invention relates to a loader vehicle with a frame structure, the transversely spaced frame side parts contains. A lifting device of the loader vehicle has two extending in the vehicle longitudinal direction near the frame side parts Lifting arms on. From the frame side parts extend upwards two transversely spaced, between the Lifting arms with spaced post elements. Essentially before and between the post elements is a Cab compartment trim arranged. In the upper area of the Post elements are arranged joint structures in which the Cab compartment cladding is pivotally mounted so that they between a first operating position and a second can swing pivoted up and rear position. Such a loader vehicle disclosing the preamble of claim 1 is known from US-A-4,811,983 known.

Rutsch-Lenk-Lader, sogenannte Skid-Steer-Loader oder Kompaktlader, sind kleine Arbeitsmaschinen mit hydraulisch angetriebenen Hubarmen, die an ihren vorderen Enden gelenkig montierbare Schaufeln oder andere Arbeitswerkzeuge tragen. Der mittlere Bereich des Laders trägt eine Fahrerplattform oder -kabine.Skid steer loaders, so-called skid steer loaders or skid steer loaders, are small work machines with hydraulically driven Lifting arms articulated at their front ends mount mountable blades or other work tools. Of the middle section of the loader carries a driver's platform or -cabin.

Unter der Fahrerkabine sind Lader-Komponenten, wie ein hydrostatisches Getriebe, Lenkgestänge, Hydraulikleitungen und Ventile zum Antreiben der Hubarme, Schaufeln und Zusatzfunktionen, Hydraulikleitungen für die Radmotorantriebe und verschiedene elektrische Kabelbäume und Verbindungen, untergebracht. Um für Wartungs- und andere Servicearbeiten einen Zugang zu diesen Lader-Komponenten zu ermöglichen, muß die Fahrerkabine wegbewegt werden. Hierfür kann die Fahrerkabine nach vorn verschoben oder nach vorn (US-A-5,551,826) oder hinten (US-A-4,811,983) verkippt werden.Under the cab are loader components, such as a hydrostatic transmission, steering linkage, hydraulic lines and Valves for driving the lifting arms, blades and additional functions, Hydraulic lines for the wheel motor drives and various electrical harnesses and connections, accommodated. For maintenance and other service to allow access to these loader components must the driver's cab are moved away. For this, the Cab moved forward or forward (US-A-5,551,826) or rear (US-A-4,811,983).

Da die Hubarme des Skid-Steer-Loaders sich entlang seiner Seite erstrecken, können sie den seitlichen Zugang zu den Komponenten versperren. Daher wird häufig ein Zugang von vorn bevorzugt. Wenn es sich jedoch um einen Lader handelt, bei dem die Fahrerkabine nach vorn verschiebbar oder nach vorn kippbar ist, ist ein Zugang von vorn ausgeschlossen, so daß die Hubarme angehoben werden müssen, um einen Zugang von der Seite des Laders aus zu ermöglichen. Wenn die Lader-Hydraulik jedoch nicht betriebsbereit ist, lassen sich die Hubarme nicht einfach anheben, so daß ein Zugang zu den Komponenten schwierig wird. Um dieses Problem zu überwinden, weisen einige Skid-Steer-Loader eine nach hinten verkippbare Fahrerkabine auf.Because the lift arms of the skid steer loader are along its side They can provide lateral access to the components block. Therefore, access from the front is often preferred. However, if it is a loader in which the Driver's cab can be moved forwards or tilted forwards, is excluded access from the front, so that the lift arms must be raised to provide access from the side of the Loader out. However, if the loader hydraulics is not ready, the lift arms are not easy so that access to the components becomes difficult. To overcome this problem, have some skid steer loaders a tilting back to the driver's cab.

Es ist häufig wünschenswert, Skid-Steer-Loader mit Liftarmen auszustatten, die vertikal anheben, so daß die vertikale Höhe der Schaufel und deren Reichweite nach vorn maximiert werden können und es leichter ist, die Ladeschaufel in einen Lastwagen zu entleeren. Bei solch einem Skid-Steer-Loader sind sowohl die vorderen als auch die hinteren Enden der Hubarme derart festgelegt, daß sich die Schaufel entlang eines im wesentlichen vertikalen Pfads anheben läßt. Um eine vertikale Bewegung der Hubarme zu erleichtern, sind deren hintere Bereiche gelenkig mit Lenkern verbunden, die ein vertikales Anheben der hinteren Enden der Hubarme ermöglichen. Diese Lenker sind manchmal an vertikal nach oben stehenden Rahmenstrukturen des Laders befestigt, um die vertikale Reichweite der Arme zu vergrößern. Da die Lenker auch eine Schwenkbewegung der Arme ermöglichen, können sich die Arme beim Anheben nach vorn verschieben, was die Fähigkeit, Lasten über die Seite eines Lastwagens in diesen zu entleeren, verbessert. Derartige Lösungen werden durch die US-A-5,609,464 und GB-A-2 278 826 beschrieben. It is often desirable to have skid steer loader with lift arms equip that lift vertically so that the vertical height the bucket and its reach are maximized forward can and it is easier to load the loading shovel into a truck to empty. With such a skid steer loader both the front and the rear ends of the lift arms so determined that the blade along a substantially vertical path. To a vertical movement of the To facilitate lifting arms, the rear areas are articulated connected with handlebars, which is a vertical lifting of the rear Allow ends of the lifting arms. These handlebars are sometimes on vertically upstanding frame structures of the loader attached to increase the vertical reach of the arms. Since the handlebars also allow a pivoting movement of the arms, The arms can move forward when lifting what the ability to load over the side of a truck in these to empty, improved. Such solutions are by the US-A-5,609,464 and GB-A-2 278 826.

Wenn nach oben gerichtete Rahmenstrukturen sowohl die Hubarme als auch die Ladeschaufel und deren Last tragen müssen, können sie mit einem oder mehreren Querträgern verstärkt ausgebildet werden. Desweiteren sind die die Hubarme tragenden Hublenker oft mit einem oder mehreren sich quer erstreckenden Querträgern versteift. Die genannten Querträger können jedoch beim Verschwenken der Fahrerkabine nach hinten ein Hindernis darstellen und das Ausmaß, um das ein Verschwenken nach oben und hinten möglich ist, erheblich begrenzen. Als Folge hiervon kann der verfügbare Arbeitsbereich unter der nach hinten angehobenen Fahrerkabine, der für Wartungs- und Reparaturarbeiten an den Fahrzeugkomponenten zur Verfügung steht, beschränkt sein. When upwardly directed frame structures both the lift arms as well as the loading bucket and their load must be able to she trained reinforced with one or more cross members become. Furthermore, the lifting arms carrying the lifting arms often with one or more transversely extending cross members stiffened. However, the mentioned cross member can when pivoting the driver's cab to the rear pose an obstacle and the extent to which pivoting up and down is possible to significantly limit. As a result, the available working area under the rear raised Cab, which is responsible for maintenance and repairs to the Vehicle components is available, limited.

Die der Erfindung zugrunde liegende Aufgabe wird darin gesehen, ein gattungsgemäßes Laderfahrzeug derart auszubilden, daß die eingangs genannten Probleme überwunden werden. Insbesondere ist es wünschenswert, einen Skid-Steer-Loader mit einer Fahrerkabine zu haben, die sich nach oben und hinten verschwenken läßt, um einen ausreichenden und bequemen Zugang zu den Fahrzeugkomponenten von der Vorderseite des Fahrzeugs aus bereitzustellen. Dies ist besonders dann wünschenswert, wenn das Laderfahrzeug Verbindungselemente zwischen seiner Rahmenstruktur und hinteren Bereichen des Hubarms aufweist, die ein vertikales Anheben der Hubarme erlauben. Es ist desweiteren wünschenswert Tragpfosten zur Befestigung der Hubarmverbindungselemente vorzusehen, die es ermöglichen, daß beim Anheben der Hubarme über den Laderrahmen hinaus, ihre vertikale Höhe und Reichweite nach vorn maximiert wird, so daß sich Material von der Seite eines Lastwagens aus in diesen abkippen läßt. Auch ist es wünschenswert ein versteifendes Bauteil vorzusehen, durch das die Hublenker und Pfosten stabilisiert werden und welches die Verwendung von weniger aufwendig ausgebildeten Tragstrukturen für die Pfosten zuläßt. Es ist desweiteren wünschenswert, die Fahrerkabine so aufzuhängen, daß ihr Boden und rückwärtiger Bereich sich über den Zugang des Arbeitsbereichs aufwärts bewegen lassen und nicht durch Querelemente in ihrer Aufwärts- und Rückwärtsbewegung behindert oder begrenzt werden. Desweiteren ist es wünschenswert, die Teile der Fahrerkabine, insbesondere die Größe ihrer Rahmenteile, möglichst klein zu halten. Es ist auch wünschenswert Kraftmittel bereitzustellen, die das Anheben der Fahrerkabine unterstützen und die auch dann funktionieren, wenn das hydraulische oder elektrische Leistungssystem zusammenbrechen sollte. Es wären auch Mittel von Vorteil, die eine lösbare Verriegelung der Fahrerkabine in ihrer angehobenen Stellung erlauben.The object underlying the invention is seen therein a generic loader vehicle in such a way that the overcome problems mentioned above. In particular It's desirable to have a skid steer loader with a cab to have, which swivel up and back leaves sufficient and convenient access to the Vehicle components from the front of the vehicle provide. This is especially desirable when the loader vehicle connecting elements between its frame structure and rear portions of the lift arm having a allow vertical lifting of the lifting arms. It is further desirable support post for fastening the Hubarmverbindungselemente which make it possible for the Lifting the lift arms beyond the loader frame, their vertical Height and reach is maximized forward, so that Tipping material from the side of a truck into it leaves. It is also desirable a stiffening component provide stabilized by the Hublenker and posts and which the use of less expensive trained support structures for the posts allows. It is Furthermore, it is desirable to hang the cab so that their bottom and rear area are beyond the access of the Move workspace up and not through Disables cross members in their upward and backward movement or be limited. Furthermore, it is desirable that Parts of the driver's cab, in particular the size of their frame parts, keep as small as possible. It is also desirable To provide power means, the lifting of the cab support and work well even if the hydraulic or electrical power system should collapse. It would also be an advantage, the releasable locking allow the driver's cab in its raised position.

Die Aufgabe wird erfindungsgemäß durch die Lehre des Patentanspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung gehen aus den Unteransprüchen hervor. The object is achieved by the teaching of the claim 1 solved. Further advantageous embodiments and Further developments of the invention will become apparent from the dependent claims out.

Erfindungsgemäß weist ein Skid-Steer-Loader eine vertikal anhebbare Hubvorrichtung mit zwei Hubarmen sowie eine Fahrerraumverkleidung, insbesondere eine Fahrerkabine, auf, welche sich selbst dann nach oben und hinten verschwenken läßt, wenn die Hydraulik und Elektrik des Laders vollständig ausfällt.According to the invention, a skid steer loader has a vertical Liftable lifting device with two lifting arms and one Cab compartment trim, in particular a driver's cab, on, which can then be swung up and back, when the hydraulics and electrics of the loader complete fails.

Die Fahrerkabine ist mit ihrem hinteren Bereich an dem oberen Ende eines aufrechten tragenden Bauteils, insbesondere eines Tragpfostens, derart angelenkt, daß sich ein hoher Drehpunkt für das Aufwärtsschwenken der Fahrerkabine ergibt und die Pfosten während des Verschwenkens als tragende Rahmenteile für die Fahrerkabine dienen. Die Gelenkstrukturen sind am oberen, hinteren Bereich der Fahrerkabine angebracht, so daß beim Aufwärtsschwenken der Boden und der hintere Bereich der Fahrerkabine im wesentlichen von den Lader-Komponenten abgehoben werden und einen ausreichenden Arbeitsbereich für Servicearbeiten freilegen. Die Hublenker, die ein vertikales Anheben der Hubarme ermöglichen, sind ebenfalls an den Tragpfosten angelenkt, und zwar derart, daß ihre vertikale Hubhöhe und Reichweite nach vorn maximiert und die Konstruktion vereinfacht wird. Zwischen den Pfosten und den Enden der Hublenker bzw. den Enden der Hubarme ist ein versteifender Querträger angeordnet, der die Pfosten und Hublenker stabilisiert, so daß sich die erforderliche Pfostenstärke minimieren läßt.The cab is with its rear area at the top End of an upright supporting component, in particular a Tragpfostens, articulated so that a high pivot point for the upward pivoting of the cab results and the Poles during pivoting as bearing frame parts for serve the driver's cab. The joint structures are at the top, Rear area of the cab mounted so that when Swinging up the floor and the rear area of the Driver's cab essentially lifted off the loader components and a sufficient work area for Expose service work. The Hublenker, which is a vertical Lifting the lift arms allow are also on the support post hinged, in such a way that their vertical lifting height and reach forward to maximize and simplify the design becomes. Between the posts and the ends of the Hublenker or the ends of the lifting arms is a stiffening cross member arranged, which stabilizes the posts and Hublenker, so that can minimize the required post strength.

Die Gelenkstrukturen der Fahrerkabine liegen in der Nähe und etwas vor dem Querträger, so daß ein Zusammenstoßen zwischen Fahrerkabine und Querträger vermieden wird, wenn die Fahrerkabine für einen Zugang zu den Fahrzeugkomponenten nach oben und hinten verschwenkt wird. Der Querträger und die Gelenkstrukturen für die Fahrerkabine und die Gelenkverbindungen für die Hublenker befinden sich in der Nähe des oberen Endes der Tragpfosten. Hierdurch ergibt sich eine verbesserte Sicht nach hinten. Es sind Gaszylinder, die das Anheben der Fahrerkabine unterstützen, und lösbare Verriegelungsmechanismen für einen sicheren Halt der Fahrerkabine in ihrer angehobenen, aufgestellten Lage, vorgesehen.The articulated structures of the driver's cab are nearby and something in front of the cross member, so that a collision between Driver's cab and cross member is avoided when the Driver's cab for access to the vehicle components is pivoted above and behind. The cross member and the Joint structures for the cab and the Hinges for the Hublenker are located nearby the upper end of the support posts. This results in a improved view to the rear. There are gas cylinders that the Support lifting the cab, and detachable Locking mechanisms for a secure hold of the Driver's cab in its raised, upright position, intended.

Anhand der Zeichnung, die ein Ausführungsbeispiel der Erfindung zeigt, werden nachfolgend die Erfindung sowie weitere Vorteile und vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung näher beschrieben und erläutert.Reference to the drawing, which is an embodiment of the invention shows, the invention and other advantages and advantageous developments and refinements of Invention described in more detail and explained.

Es zeigt:

Fig. 1
eine perspektivische Vorderansicht eines Skid-Steer-Loaders mit einer verschwenkbaren Fahrerraumverkleidung in Betriebsstellung,
Fig. 2
eine perspektivische Hinteransicht eines Skid-Steer-Loaders mit der Fahrerraumverkleidung in Betriebsstellung,
Fig. 3
eine perspektivische Ansicht von rechts, vorn eines Skid-Steer-Loaders mit einer Fahrerraumverkleidung in angehobener Stellung,
Fig. 4
eine schematische Seitenansicht eines Laders mit angehobener Fahrerraumverkleidung, wobei die Betriebsstellung der Fahrerraumverkleidung durch gestrichelte Linien angedeutet ist,
Fig. 5
eine vergrößerte perspektivische Ansicht von oben, hinten, links der Gelenkanordnung, welche die Fahrerraumverkleidung verschwenkbar trägt, und deren oberen Hublenkerteile mit Lader-Pfosten,
Fig. 6
eine Schnittansicht entlang der in Fig. 5 dargestellten Linie 6-6,
Fig. 7
eine vergrößerte schematische perspektivische Ansicht der Steuerhebel und ihrer die Exzenterscheiben beeinflussenden Traggestänge,
Fig. 8
eine schematische Seitenansicht eines Gaszylinders in seiner eingefahrenen Stellung,
Fig. 9
eine schematische Seitenansicht des Gaszylinders in seiner ausgefahrenen und verriegelten Stellung und
Fig. 10
eine vergrößerte perspektivische Ansicht von oben, links, hinten der Befestigungsstruktur, die verwendet wird, um die Fahrerraumverkleidung während des Laderbetriebs auf dem Fahrzeugrahmen zu arretieren.
It shows:
Fig. 1
a front perspective view of a skid steer loader with a pivoting cab compartment trim in the operating position,
Fig. 2
a rear perspective view of a skid steer loader with the cab compartment trim in the operating position,
Fig. 3
a perspective view from the right, front of a skid steer loader with a cab panel in a raised position,
Fig. 4
a schematic side view of a loader with the cab compartment panel raised, wherein the operating position of the cab compartment lining is indicated by dashed lines,
Fig. 5
an enlarged perspective view from above, behind, left of the joint assembly, which carries the driver's cab panel pivotally, and their upper parts of the bumper with loader posts,
Fig. 6
a sectional view along the line 6-6 shown in Fig. 5,
Fig. 7
an enlarged schematic perspective view of the control lever and its eccentric discs influencing support rods,
Fig. 8
a schematic side view of a gas cylinder in its retracted position,
Fig. 9
a schematic side view of the gas cylinder in its extended and locked position and
Fig. 10
an enlarged perspective view from the top, left, rear of the mounting structure, which is used to lock the cab compartment lining during the loader operation on the vehicle frame.

Die Figuren 1, 2 und 3 illustrieren einen Skid-Steer-Loader 10, auch Rutsch-Lenk-Lader oder Kompaktlader genannt, mit vertikalen Hubarmen 12 und einer nach hinten verschwenkbaren Fahrerraumverkleidung 14, die auch als komplette Fahrerkabine ausgebildet sein könnte. Am Fahrzeugrahmen 16 sind ein im hinteren Fahrzeugbereich aufgehängter Motor 18 und Vorder- und Hinterräder 20, 22 befestigt. Wie bei Skid-Steer-Loadern üblich, lassen sich die Hinterräder 22 unabhängig voneinander antreiben. Sie sind mit ihren zugehörigen Vorderrädern 20 durch nicht gezeigte Kettenantriebe gekoppelt. Die Fahrerraumverkleidung 14 wird im mittleren, zwischen den Hubarmen 12 liegenden Bereich getragen.Figures 1, 2 and 3 illustrate a skid steer loader 10, also called slip-loader or skid steer, with vertical lifting arms 12 and a pivotable backwards Cabin panel 14, which also serves as a complete cab could be trained. On the vehicle frame 16 are an im rear vehicle area suspended engine 18 and front and Rear wheels 20, 22 attached. As with skid steer loaders usual, the rear wheels 22 can be independently drive. They are with their associated front wheels 20 through not shown chain drives coupled. The driver compartment panel 14 is in the middle, between the lifting arms 12 worn lying area.

Die Hubarme 12 sind so ausgebildet, daß sie an ihren vorderen Enden Ladeschaufeln oder ähnliche Werkzeuge aufnehmen können. Ihre Befestigung am Rahmen 16 läßt ein im wesentlichen vertikales Anheben zu. Um eine solche Bewegung zu ermöglichen, ist jeder der beiden Hubarme 12 an einem ersten Hublenkerelement 26, welches sich zwischen einem mittleren Bereich des Rahmens 16 und einem unteren, hinteren Bereich 28 des Hubarms 12 erstreckt, verschwenkbar befestigt. Zweite, obere Lenkerelemente 30 sind bogenförmig ausgebildet. Sie verbinden gelenkig den oberen, hinteren Bereich 32 des zugehörigen Hubarms 12 mit einem der aufrechten linken bzw. rechten Pfosten 34, die im hinteren Bereich des Fahrzeugrahmens 16 befestigt sind und von diesem nach oben abstehen. Zwischen dem Fahrzeugrahmen 16 und jedem Hubarm 12 ist ein Hydraulikzylinder 36 zum Anheben und Absenken des Hubarms 12 angeordnet.The lifting arms 12 are formed so that they at their front Ends loading buckets or similar tools can accommodate. Their attachment to the frame 16 leaves a substantially vertical lifting too. To enable such a movement each of the two lifting arms 12 is at a first Hublenkerelement 26, which is located between a middle Area of the frame 16 and a lower rear portion 28th of the lifting arm 12 extends, pivotally mounted. Second, Upper link members 30 are arcuate. she articulated connect the upper, rear portion 32 of the associated lifting arm 12 with one of the upright left or right post 34, which is in the rear of the vehicle frame 16 are fixed and protrude from this upwards. Between the vehicle frame 16 and each lift arm 12 is a Hydraulic cylinder 36 for raising and lowering the lifting arm 12th arranged.

Die Fahrerraumverkleidung 14, die am besten aus den Figuren 1 bis 4 hervorgeht, enthält eine Basis 38, auch Grundaufbau genannt, die im wesentlichen einen Boden 40 mit integrierten Seiten- und Rückwandungen 42, 44, rohrförmige Seitenteile 46, die von den Seitenwandungen 42 abstehen und sich bis zu den Pfosten 34 erstrecken, ein Dach 48 mit einem nach vorn vorstehenden röhrförmigen Rahmen 50 und seitliche Schutzgitter 52 aufweist. Die aufrechten Pfosten 34 im hinteren Bereich des Laders 10 bilden eine zusätzliche Überrollschutztragstruktur für die Fahrerraumverkleidung 14. Die Fahrerraumverkleidung 14 umfaßt desweiteren einen auf der Basis 38 befestigten Sitz 54 und verschiedene Meßinstrumente. Im Bereich der vorderen Kante der Fahrerraumverkleidung 14 ragen von dem Fahrzeugrahmen 16 aus je ein Steuerhebel 56, 58 für die linken und die rechten Räder nach oben. Befestigungsmittel in Form von Schrauben 60 und Muttern 61 (siehe Fig. 3 und 10) sichern jede Seite der Fahrerraumverkleidung 14 auf dem Fahrzeugrahmen 16 und halten sie in ihrer Betriebsstellung fest.The driver compartment trim 14, which is best seen in FIGS 4, contains a base 38, also basic construction called, which essentially has a bottom 40 with integrated Side and rear walls 42, 44, tubular side parts 46, which protrude from the side walls 42 and up to the Posts 34 extend, a roof 48 with a forward projecting tubular frame 50 and side guards 52 has. The upright posts 34 in the rear of the Loaders 10 form an additional rollover protection structure for the driver's compartment panel 14. The driver's compartment panel 14 further includes a seat 54 secured to the base 38 and various measuring instruments. In the area of the front edge the driver compartment cover 14 protrude from the vehicle frame 16 from a respective control lever 56, 58 for the left and the right Wheels up. Fastening means in the form of screws 60 and nuts 61 (see Figs. 3 and 10) secure each side of the Cab compartment trim 14 on the vehicle frame 16 and hold they firmly in their operating position.

Die Figuren 3 und 4 zeigen den Lader 10 mit einer Fahrerraumverkleidung 14, die sich in ihrer oberen, nach hinten geschwenkten Stellung befindet und somit Zugang zu verschiedenen unter ihr beherbergten Laderkomponenten bietet. Bei den Komponenten handelt es sich beispielsweise um ein hydrostatisches Getriebe 62, Lenkgestänge, welche die Steuerhebel 56, 58 mit dem hydrostatischen Getriebe 62 verbinden, Hydraulikventile 64 mit angeschlossenen Leitungen zum Antreiben der Hubarme 12, der Ladeschaufel 24 und zusätzlicher Laderfunktionen, Hydraulikleitungen für die Radmotorantriebe und verschiedene elektrische Kabelbäume und Verbindungen.Figures 3 and 4 show the loader 10 with a Cabin trim 14, located in its upper, to the rear pivoted position and thus access to various charging components housed under it. For example, the components are one hydrostatic transmission 62, steering linkage, which the Control lever 56, 58 with the hydrostatic transmission 62nd connect, hydraulic valves 64 with connected lines for driving the lifting arms 12, the loading shovel 24 and additional loader functions, hydraulic lines for the Wheel motor drives and various electrical harnesses and Links.

Wie aus den Figuren 3, 4 und 5 hervorgeht, ist die Fahrerraumverkleidung 14 an linken und rechten Gelenkstrukturen 66, die von den oberen Enden der Pfosten 34 getragen werden, befestigt, so daß sie sich nach oben und hinten verschwenken läßt. Jede Gelenkstruktur 66 enthält eine Tragöse 68, die an einem der rohrförmigen Seitenteilen 46 befestigt ist und von diesem nach hinten abstehen. Durch Schrauben 70 werden die Tragösen 68 zwischen der Innenwandung 72 und der Außenwandung 74 des jeweiligen Pfostens 34 gehalten. Jede Schraube 70 besitzt an einem Ende eine Gewinde. Durch Muttern werden die Schrauben 70 an den Innenwandungen 72 und den Außenwandungen 74 der Pfosten 34 gesichert.As is apparent from Figures 3, 4 and 5, is the Cab compartment trim 14 on left and right hinge structures 66 carried by the upper ends of the posts 34, attached so that they pivot up and back leaves. Each hinge structure 66 includes a lifting eye 68, the one of the tubular side parts 46 is attached and of stick it out to the rear. By screws 70 are the Support eyelets 68 between the inner wall 72 and the outer wall 74 of the respective post 34 held. Every screw 70 has a thread at one end. By nuts are the Screws 70 on the inner walls 72 and the outer walls 74th the post 34 secured.

Ein Verstärkungsquerträger 78 (siehe Fig. 5) erstreckt sich zwischen den oberen Enden der Pfosten 34 kurz hinter den Gelenkstrukturen 66. Er hat gemäß einer bevorzugten Ausführung ein im wesentlichen C-förmiges Profil, an dem eine Abdeckung 79 befestigt ist. Die gegenüberliegenden Enden des Verstärkungsquerträgers 78 stoßen gegen die Innenwandungen 72 der Pfosten 34 und sind bei 80 mit diesen verschweißt (siehe Fig. 6). Der Verstärkungsquerträger 78 versteift nicht nur die Pfosten 34 sondern stabilisiert auch die oberen Enden der Lenkerelemente 30 und macht Querträger zwischen den oberen Enden der Lenkerelemente 30 überflüssig.A reinforcing cross member 78 (see Fig. 5) extends between the upper ends of the posts 34 just behind the Articulated structures 66. It has according to a preferred embodiment a substantially C-shaped profile on which a cover 79th is attached. The opposite ends of the reinforcement cross member 78 abut against the inner walls 72 of the posts 34 and are welded at 80 with these (see Fig. 6). Of the Reinforcement cross member 78 stiffened not only the post 34th but also stabilizes the upper ends of the link elements 30 and makes cross member between the upper ends of the Handlebar elements 30 superfluous.

Durch gelenkige Verbindungen 82 sind die oberen Enden der Lenkerelemente 30 mit den Pfosten 34 schwenkbar verbunden. Wie es am besten aus den Figuren 5 und 6 hervorgeht, bestehen diese Verbindungen 82 aus ersten Augen 84, die an den oberen Enden der Lenkerelemente 30 befestigt sind, zweiten Augen 86, die an den oberen Enden der Pfosten 34 befestigt sind, kegelförmigen Lenkerstiften 88, die durch die ersten Augen 84 gesteckt werden und in den zweiten Augen 86 sitzen, und Schrauben 90, die verwendet werden, um die Lenkerstifte 88 in den zweiten Augen 86 zu sichern. Die Schrauben 90 werden zu diesem Zweck in Innengewinde 92, die in der Bohrung jedes zweiten Auges 86 ausgebildet sind, geschraubt. Dabei wird das obere Ende der Lenkerelemente 30 gelenkig mit den Pfosten 34 verbunden.By articulated connections 82, the upper ends of the Handlebar elements 30 pivotally connected to the post 34. As it is best seen in Figures 5 and 6, these exist Connections 82 from first eyes 84, those at the upper ends the link members 30 are fixed, second eyes 86, the at the upper ends of the posts 34 are fixed, cone-shaped Handlebars 88 which are inserted through the first eyes 84 and in the second eyes 86 sit, and screws 90, the used to hold the handlebar pins 88 in the second eye 86 to secure. The screws 90 are for this purpose in Internal thread 92 in the bore of each second eye 86th are trained, screwed. The upper end of the Handlebar elements 30 hingedly connected to the posts 34.

Mit dem Verstärkungsquerträger 78, der Gelenkstruktur 66 und den gelenkigen Verbindungen 82, die sich alle in der Nähe der Gipfelpunkte der Pfosten 34 befinden, kann für die Fahrerraumverkleidung 14 ein großes Rückfenster vorgesehen werden, welches die Sicht nach hinten verbessert.With the reinforcing cross member 78, the joint structure 66 and the articulated connections 82, all close to the Pinnacles of the posts 34 may be for the driver's compartment paneling 14 a large rear window can be provided which improves the view to the rear.

Beim Betrieb wird der Lader 10 genauso verwendet wie ähnliche bekannte Lader, die mit vertikalen Hubarmen 12 ausgerüstet sind, d. h., es ist möglich, Material hochzuheben und zur Entsorgung über eine Seite in einen Lastwagen auszuleeren. Sollten bei dem Lader 10 mechanische Probleme auftauchen oder Wartungsarbeiten notwendig werden, die einen Zugang zu Fahrzeugkomponenten, welche unter der Fahrerraumverkleidung liegen, erfordern, so kann die Bedienungsperson auf einfache Weise die Fahrerraumverkleidung nach oben und hinten in die in Fig. 3 dargestellte Stellung schwenken.In operation, the loader 10 is used as well as similar known loaders equipped with vertical lifting arms 12 are, d. h., it is possible to pick up material and to Dispose of waste on one side in a truck. Should occur with the loader 10 mechanical problems or Maintenance work will be necessary, providing access to Vehicle components, which under the cab compartment require, so the operator can be simple Move the cab panel up and into the rear in the Swivel Fig. 3 illustrated position.

Um die Fahrerraumverkleidung 14 nach oben zu verschwenken, muß die Bedienungsperson von dem Lader 10 absteigen und die Muttern 61 von den am Fahrzeugrahmen 16 befestigten Schrauben 60 lösen. Dann kann die Bedienungsperson von der Vorderseite des Laders 10 aus die Seitenwandungen 42 der Fahrerraumverkleidung 14 anheben. Dabei dehnen sich Gaszylinder 94, die sich an beiden Seiten der Fahrerraumverkleidung 14 befinden aus und unterstützen das Anheben der Fahrerraumverkleidung 14, die um die an den Pfosten 34 gelagerten Gelenkstrukturen 66 nach oben und hinten verschwenkt wird. Beim Anheben der Fahrerraumverkleidung 14 werden die Steuerhebel 56, 58 nach vorn verschoben, um für den Boden der Fahrerraumverkleidung 14 den beim Schwenken erforderlichen Freiraum zu schaffen. Die Verschiebebewegung der Steuerhebel 56, 58 wird durch die Interaktion zwischen der Grundfläche des Bodens 40 und den Exzenterscheiben 96, die an den Drehwellen 98 der Steuerhebel 56, 58 befestigt sind, bewirkt. Dieses Merkmal ist Gegenstand einer europäischen Patentanmeldung mit der Priorität US 953,560 vom 17. Oktober 1997, auf deren Offenbarung hiermit Bezug genommen wird, um Wiederholungen zu vermeiden.In order to pivot the cab panel 14 upward, must the operator dismount the loader 10 and the nuts 61 of the fastened to the vehicle frame 16 screws 60 solve. Then the operator can from the front of the loader 10 from the side walls 42 of the cab compartment 14th Lift. This gas cylinder 94, which extend at both Sides of the cab compartment fairing 14 are off and assist lifting the cab panel 14, which around the articulated structures 66 mounted on the posts 34 are upwards and is pivoted at the back. When lifting the cab panel 14, the control levers 56, 58 forward moved to 14 for the floor of the driver's cab panel to create necessary space when panning. The Displacement movement of the control lever 56, 58 is determined by the Interaction between the base of the ground 40 and the Eccentric discs 96 which are connected to the rotary shafts 98 of the control lever 56, 58 are fixed causes. This feature is the subject a European patent application with the priority US 953,560 of October 17, 1997, the disclosure of which is hereby incorporated by reference is taken to avoid repetition.

Wenn die Fahrerraumverkleidung 14 in ihre höchste Stellung (siehe Fig. 3) angehoben ist, können Verriegelungsmittel, welche an wenigstens einem der Gaszylinder 94 angeordnet sind, betätigt werden, um die Fahrerraumverkleidung 14 in ihrer angehobenen Stellung zu tragen. Die Verriegelungsmittel sind im Zusammenhang mit einem Gaszylinder 94 in den Figuren 8 und 9 näher dargestellt. Sie enthalten am unteren Ende einer unteren Hülse 102 eine Sitzfläche 100, die bestrebt ist die Gaszylinderstange 104 unter Einschluß eines Winkels zur unteren Hülse 102 zu tragen. Wenn der Gaszylinder 94 aus seiner in Fig. 8 gezeigten eingezogenen Lage in die in Fig. 9 dargestellte Lage ausgefahren wird, drängt die Sitzfläche 100 die untere Hülse 102 aus ihrer mit einer oberen Hülse 106 fluchtenden Lage. Wenn der Gaszylinder 94 voll ausgefahren ist, schwenkt die untere Hülse 102 in die in Fig. 9 dargestellte Lage, in der sich die obere Kante 108 der unteren Hülse 102 unter die unteren Kante 110 der oberen Hülse 106 schiebt. Mit zueinander versetzten Zylinderhülsen 102, 106, deren entsprechende Kanten 108, 110 aufeinander stoßen, wie es Fig. 9 zeigt, kann der Gaszylinder 94 nicht eingefahren werden, sondern ist in dieser Stellung verriegelt und hält die Fahrerraumverkleidung 14 in ihrer aufgestellten Stellung. Es hat sich gezeigt, daß es ausreicht, nur einen Verriegelungszylinder für das Lader-Model ECV4SC500555S4D von Camloc (UK) Ltd., Fairchild Fastener Group zu verwenden.When the cab panel 14 is in its highest position (see Fig. 3) is raised, locking means, which are arranged on at least one of the gas cylinders 94, be pressed to the driver compartment panel 14 in their to carry raised position. The locking means are in In connection with a gas cylinder 94 in FIGS. 8 and 9 shown in more detail. They contain a lower one at the lower end Sleeve 102 a seat 100, which endeavors is the Gas cylinder rod 104 including an angle to the lower Sleeve 102 to wear. When the gas cylinder 94 from its in Fig. 8 shown in the retracted position shown in Fig. 9 Is extended position, the seat 100 urges the lower Sleeve 102 from its aligned with an upper sleeve 106 Location. When the gas cylinder 94 is fully extended, pivots the lower sleeve 102 in the position shown in Fig. 9, in the the upper edge 108 of the lower sleeve 102 under the lower edge 110 of the upper sleeve 106 pushes. With each other offset cylindrical sleeves 102, 106, whose corresponding edges 108, 110 abut, as shown in FIG. 9, the Gas cylinder 94 can not be retracted, but is in this Locked position and keeps the driver compartment panel 14 in their position. It has been shown that it sufficient, only one locking cylinder for the supercharger model ECV4SC500555S4D from Camloc (UK) Ltd., Fairchild Fastener Group to use.

Mit angehobener Fahrerraumverkleidung 14 ergibt sich ein einfacher Zugang von der Vorderseite des Laders aus zu den Lader-Komponenten, die unter der Fahrerraumverkleidung beherbergt sind. Wenn kein elektrischer und/oder hydraulischer Fehler vorliegt, der ein Anheben der Hubarme 12 verhindert, ist zusätzlich auch ein Zugang von der Seite des Laders 10 aus möglich.With raised driver's cab panel 14 results easy access from the front of the loader to the Loader components under the cab paneling are housed. If no electrical and / or hydraulic Error is present, which prevents lifting of the lifting arms 12 is in addition, an access from the side of the loader 10 possible.

Nach Ausführung von Wartungs- und Reparaturarbeiten, läßt sich die Fahrerraumverkleidung 14 auf einfache Weise in ihre Betriebsstellung zurückbringen und verriegeln. Um sie in die Betriebsstellung zurückzubringen, werden die Verriegelungsmittel des Gaszylinders 94 aus ihrem Eingriff befreit, so daß sich der Gaszylinder 94 zusammenziehen kann. Dies wird erreicht, indem die untere Zylinderhülse 102 gegen die Vorspannung der Sitzfläche 100 nach innen zur Zylinderstange 104 gedrückt wird, so daß die untere Hülse 102 mit der oberen Hülse 106 fluchtet. Sobald die Hülsen 102, 106 fluchten, wird die Fahrerraumverkleidung 14 nach unten gedrückt, wobei die Gaszylinder 94 einfahren. Beim Herunterschwenken der Fahrerraumverkleidung 14 um ihre an den Pfosten 34 angelenkten Gelenkstrukturen 66 kommt der Boden 40 in Kontakt mit den Exzenterscheiben 96, so daß die Steuerhebel 56, 58 in ihre aufrechte Stellung, wie sie in Fig. 1 gezeigt ist, schwenken. Gleichzeitig mit der Fahrerraumverkleidung 14 werden die an den Seitenteilen 46 befestigten L-förmigen Haltewinkel 112 nach unten geschwenkt, so daß die Schrauben 60 durch zugehörige Öffnungen 114 in den Haltewinkeln 112 geführt werden. Nun können die Muttern 61 auf die Schrauben 60 aufgedreht werden, wodurch die Fahrerraumverkleidung 14 auf dem Fahrzeugrahmen 16 gesichert und eine Aufwärtsbewegung der Fahrerraumverkleidung 14 während des Betriebs des Laders 10 verhindert wird. Auf die Schrauben 60 sind elastische Unterlagen 116 aufgesteckt, die eine gedämpfte Relativbewegung zwischen der Fahrerraumverkleidung 14 und dem Fahrzeugrahmen 16 ermöglichen.After performing maintenance and repair work, can be the cab panel 14 in a simple way in their Return operating position and lock. To put her in the Return operating position, the locking means the gas cylinder 94 released from their engagement, so that the gas cylinder 94 can contract. this will achieved by the lower cylinder sleeve 102 against the Preload the seat 100 inward to the cylinder rod 104 is pressed, so that the lower sleeve 102 with the upper Sleeve 106 is aligned. Once the sleeves 102, 106 are aligned, will pressed the cab compartment 14 down, the Retract gas cylinder 94. When swinging down the Cab compartment trim 14 hinged to her at the posts 34 Joint structures 66, the bottom 40 comes into contact with the Eccentric discs 96, so that the control lever 56, 58 in their upright position, as shown in Fig. 1, pivot. At the same time with the driver's cab panel 14 are at the Side members 46 fastened to L-shaped brackets 112 pivoted down so that the screws 60 by associated Openings 114 are guided in the brackets 112. Now the nuts 61 can be screwed onto the screws 60, whereby the driver compartment cover 14 on the vehicle frame 16 secured and an upward movement of the driver's compartment paneling 14 is prevented during operation of the supercharger 10. On the Screw 60 elastic pads 116 are attached, the a damped relative movement between the driver's cab paneling 14 and the vehicle frame 16 allow.

Mit der nach oben und hinten verschwenkbaren Fahrerraumverkleidung 14 wird der Zugang zu den Fahrzeugkomponenten von der Vorderseite des Laders 10 aus erleichtert. Dies kann insbesondere dann wünschenswert sein, wenn bei dem Lader 10 ein vollständiger elektrischer oder hydraulischer Systemausfall auftritt, durch den es unmöglich ist, die Hubarme 12 auf einfache Weise anzuheben oder zu entfernen, so daß ein Zugang von der Seite des Laders 10 aus möglich wäre.With the swiveling up and back Cab compartment trim 14 will provide access to the vehicle components facilitated from the front of the loader 10. This may be desirable in particular when in the Charger 10 a complete electric or hydraulic System failure occurs, making it impossible for the lift arms 12 in a simple way to lift or remove, so that a Access from the side of the loader 10 would be possible.

Da die Gelenkstrukturen für die Fahrerraumverkleidung 14 und die Hubarme auf den üblichen Tragpfosten sehr hoch angebracht sind, reichen die Hubarme 12 beim Anheben sehr hoch und nach vorne, so daß Lasten über die Seite von Lastwagen entleert werden können. Desweiteren kann hierdurch die Fahrerraumverkleidung 14 weit über die Lader-Komponenten angehoben sowie die Sicht nach hinten verbessert werden. Gegenüber bisherigen Fahrzeugen ist eine geringere Anzahl von weniger aufwendigen Bauelementen für die Herstellung des Laders erforderlich.Since the joint structures for the driver compartment trim 14 and the lifting arms mounted very high on the usual support post are rich, the lifting arms 12 when lifting very high and after at the front so that loads are dumped over the side of trucks can be. Furthermore, thereby the driver's compartment lining 14 raised far above the loader components as well the view to the rear can be improved. Compared to previous ones Vehicles is a smaller number of less expensive Components required for the production of the loader.

Auch wenn die Erfindung lediglich anhand eines Ausführungsbeispiels beschrieben wurde, erschließen sich für den Fachmann im Lichte der vorstehenden Beschreibung sowie der Zeichnung viele verschiedenartige Alternativen, Modifikationen und Varianten, die unter die vorliegenden Ansprüche fallen.Even if the invention only by means of a Embodiment has been described, opening up for the expert in the light of the above description and the Drawing many different alternatives, modifications and variants falling within the scope of the present claims.

Claims (11)

  1. A loader vehicle with
    a frame structure (16) which includes frame side parts transversely spaced from one another,
    a lift device which comprises two lift arms (12) extending in the longitudinal direction of the vehicle near the frame side parts,
    a pair of post elements (34) extending upwards from the frame side parts, spaced from one another and lying between the lift arms (12) and
    and a driver's enclosure (14) which is arranged essentially in front of and between the post elements (34),
    wherein hinge structures (66) are arranged in the upper region of the post elements (34), on which the driver's enclosure (14) is fixed pivotally, in such a way that it can pivot between a first, operating position and a second position raised upwards and to the rear,
    characterized in that,
    link elements (30) are provided and pivotally connect respective rear regions (32) of the lift arms (12) to upper regions of the respective post element (34),
    and in that the upper ends of the link elements (30) are pivotally connected to the posts (34).
  2. A loader vehicle according to claim 1, characterized in that at least one crosspiece (78) extends between the upper regions of the two post elements (34) and in that the hinge structures (66) are arranged in the vicinity of the crosspiece.
  3. A loader vehicle according to claim 2, characterized in that the driver's enclosure (14) is so adapted that is can pivot between the post elements (34) upwards and to the rear above the crosspiece (78).
  4. A loader vehicle according to any of claims 1 to 3, characterized in that the post elements (34) serve as rear supporting components for the driver's enclosure (14) when this is located in its operating position.
  5. A loader vehicle according to any of claims 1 to 4, characterized in that the driver's enclosure (14) includes a rear wall (44) extending substantially vertically and in that the hinge structures (66) are located in the region of the upper corners of the rear wall (44).
  6. A loader vehicle according to any of claims 1 to 5, characterized in that at least two gas cylinders (94) spaced laterally from one another are provided, each extending between the frame structure and the driver's enclosure (14) and assisting the upward pivoting of the driver's enclosure (14), and in that at least one gas cylinder (94) comprises releasable latch means for securing the gas cylinder (94) in its extended position.
  7. A loader vehicle according to any of claims 1 to 6, characterized in that the driver's enclosure (14) has rear and upper adjoining regions (68) on which the hinge structures (66) engage.
  8. A loader vehicle according to any of claims 1 to 7, characterized in that the pivot connections (82) for the link elements (30) are arranged in the vicinity of the upper ends of the post elements (34).
  9. A loader vehicle according to any of claims 1 to 8, characterized in that the hinge structures (66) are arranged on upper, rear regions of the driver's enclosure (14).
  10. A loader vehicle according to any of claims 1 to 9, characterized in that the link elements (30) are pivotally attached to the post elements (34) closely adjacent to the hinge structures (66).
  11. A loader vehicle according to any of claims 1 to 10, characterized in that the hinge structures (66), the crosspiece (78) and the pivot connections (82) are all fixed in the respective upper end regions of the post elements (34).
EP98119187A 1997-10-17 1998-10-12 Loader vehicle Expired - Lifetime EP0909855B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/954,290 US5941330A (en) 1997-10-17 1997-10-17 Operator enclosure
US954290 1997-10-17

Publications (3)

Publication Number Publication Date
EP0909855A2 EP0909855A2 (en) 1999-04-21
EP0909855A3 EP0909855A3 (en) 2001-03-07
EP0909855B1 true EP0909855B1 (en) 2005-10-19

Family

ID=25495222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119187A Expired - Lifetime EP0909855B1 (en) 1997-10-17 1998-10-12 Loader vehicle

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Country Link
US (1) US5941330A (en)
EP (1) EP0909855B1 (en)
KR (1) KR100506960B1 (en)
AU (1) AU731402B2 (en)
CA (1) CA2242040C (en)
DE (1) DE59813118D1 (en)
ES (1) ES2247651T3 (en)

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CN102418352B (en) * 2011-08-25 2014-06-04 临颍县颍机机械制造有限公司 Four-driving folding-waist front turning grass grasping machine

Also Published As

Publication number Publication date
KR100506960B1 (en) 2005-11-21
AU8928698A (en) 1999-05-06
AU731402B2 (en) 2001-03-29
CA2242040C (en) 2001-06-26
ES2247651T3 (en) 2006-03-01
EP0909855A2 (en) 1999-04-21
KR19990036487A (en) 1999-05-25
DE59813118D1 (en) 2006-03-02
US5941330A (en) 1999-08-24
EP0909855A3 (en) 2001-03-07
CA2242040A1 (en) 1999-04-17

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