DE202018104059U1 - Front loaders - Google Patents

Abstract

Front loader (1) with
a) a tractor coupling device (2),
b) a tool carrier (3),
c) an angled arm (6) which is pivotally connected in one end region via a pivot bearing (8) in a pivot plane (9) with the tractor-coupling device (2) and in another end region via a pivot bearing (10) pivotally connected to the Tool carrier (3) is connected,
d) a deflection lever (11), which is supported by a pivot bearing (12) pivotally mounted on the arm (6),
e) an actuator (13), via which the arm (6) is pivotable relative to the tractor coupling device (2),
f) an actuator (18), via which the tool carrier (3) relative to the arm (6) is pivotable and via a pivot bearing (20) is pivotally supported on the lever (11), and
g) a control rod (26) which is pivotably mounted on the tractor coupling device (2) via a pivot bearing (28) and is pivotably mounted on the reversing lever (11) via a pivot bearing (29),
h) wherein an actuation of the actuator (13), via which the arm (6) is pivotable relative to the tractor-coupling device (2) to
Ha) caused by the control rod (6) pivoting of the reversing lever (11) relative to the arm (6) and
hb) thereby associated pivoting of the tool carrier (3) relative to the arm (6) leads, and
i) wherein a height of a gap (31) between the control rod (26) and the arm (6) with an actuation of the actuator (13), via which the arm (6) relative to the tractor-coupling device (2) is pivotable , changed, characterized in that
j) the gap (31) is closed in a direction vertical to the pivoting plane (9) by a lining (34) which is formed separately from the control rod (26) and in the direction of possible deformations of the control rod (26) during operation of the front loader ( 1) can perform a relative movement to the control rod (26).

Description

TECHNICAL FIELD OF THE INVENTION

The invention relates to a front loader, via which a tool such as a shovel on a tractor, a work vehicle, a tractor, a wheel loader or the like. held, raised, lowered and can be pivoted, as well as a front loader sub-cladding.

STATE OF THE ART

A generic front loader is exemplary in the 1 and 2 The front loader 1 has a tractor coupling device 2, which is also referred to as a "column" or "coupling column". By means of the tractor-coupling device 2, the front loader 1 on the tractor, work vehicle, tractor, wheel loader o.ä. be attached. Furthermore, the front loader 1 on a tool carrier 3. By means of the tool carrier 3 can on the front loader 1, a tool 4 (for the illustrated embodiment, a blade 5) are attached. The front loader 1 has an arm 6 with an angled portion 7 or a kink. In one end region of the arm 6 is pivotally mounted via a pivot bearing 8 in a pivoting plane 9 on the tractor-coupling device 2, which is oriented in the figures parallel to an xz-axis. In the other end region, the arm 6 is mounted on the tool carrier 3 via a pivot bearing 10. A reversing lever 11, which can also be referred to as an intermediate piece or deflection triangle, is pivotably supported by a pivot bearing 12 on the arm 6. The pivot bearing 12 is arranged in the region of the bend 7 of the arm 6. By means of an actuator 13, which is preferably designed as a hydraulic cylinder 14, the arm 6 is pivotable relative to the tractor-coupling device 2, whereby the tool carrier 3 and the tool 4 held thereto can be raised and lowered. The actuator 13 is mounted in an end region in a pivot bearing 15 on the tractor coupling device 2, while the other end portion of the actuator 13 in a pivot bearing 16 on the arm (here at least one pivot plate 17 of the arm 6) is mounted. Another actuator 18, here likewise a hydraulic cylinder 19, serves to pivot the tool carrier 3 (and thus of the tool 4) relative to the arm 6. The actuator 18 is pivotably mounted on the reversing lever 11 in an end region via a pivot bearing 20. The other end region of the actuator 18 is guided via an angled rocker 21. An end region of the rocker 21 is mounted on the end region of the actuator 18 via a pivot bearing 22, while the other end region of the rocker 21 is mounted on the arm 6 via a pivot bearing 23. The movement and force brought about by the actuator 18 are transmitted to the tool carrier 3 via a coupling rod 24. The coupling rod 24 is likewise mounted on the actuator 18 via the pivot bearing 22 in one end region, while the other end region of the coupling rod 24 is mounted on the tool carrier 3 via a pivot bearing 25. A control rod 26, which extends approximately parallel to an arm portion 27 of the arm 6 and above the arm portion 27 is pivotally mounted in one end via a pivot bearing 28 on the tractor-coupling device 2, while the other end portion of the control rod 26 via a pivot bearing 29th is mounted pivotably on the reversing lever 11. Here, the distance of the pivot bearing 29 of the pivot bearing 12 is smaller than the distance of the pivot bearing 20 of the pivot bearing 12. For the illustrated embodiment, the lever 11 is angled, wherein the pivot bearings 12, 20 are each arranged in an end portion of the angled deflection lever 11 while the pivot bearing 29 is disposed in the region of the bend of the reversing lever 11. If the tool carrier 3 with the tool 4 mounted rigidly and not pivotable about the pivot bearing 10 on the arm 6, raising or lowering the tool 4 by means of a pivoting of the arm 6 about the pivot bearing 8 caused by the actuator 13 would have the consequence the tool 4 would be pivoted, whereby the orientation of the tool 4 would be changed to the environment, in particular the ground, which is undesirable in some cases or takes place with an undesirable dependence of the pivoting movement of the tool 4 of the pivotal movement of the arm 6. Given the pivotable articulation of the tool carrier 3 on the arm 6 via the pivot bearing 10 is a specification of the pivot angle of the tool 4 relative to the arm 6 via the kinematic chain, which with the control rod 26, the lever 11, the actuator 18, the rocker 21 and the coupling rod 24 is formed. This kinematic chain has the consequence that a pivoting of the arm 6 by extending the actuator 13 with a lifting of the end portion of the arm 6 in the region of the pivot bearing 10 at the same time has a pivoting of the reversing lever 11 in a pivoting direction 30 result, which also without changing the Adjustment of the actuator 18 has the consequence that a pivoting of the tool carrier 3 is held with tool 4 held about the pivot bearing 10 relative to the arm 6. Depending on the design of the kinematic chain, a vote can be made such that regardless of the pivot angle of the arm 6 relative to the tractor coupling device 2 by actuation of the actuator 13 with a raising and lowering of the tool 4, the relative pivoting of the tool carrier 3 about the pivot bearing 10 relative to the arm 6 to an extent such that the orientation of the tool carrier 3 does not change with the tool 4, so that, for example, designed as a lifting tool 4 regardless of the height thereof does not change its orientation relative to the ground, which then the lifting fork can be raised or lowered in parallel. Alternatively, it is possible that, depending on the pivoting of the arm 6, a predetermined by the kinematic chain dependence of the pivot angle of the tool 4 results from the pivoting of the arm 6 and thus the height of the tool carrier 3. To name just one example, the tool 4 designed as a blade 5 can be filled with a material when the bottom side is aligned parallel to the bottom. With pivoting of the arm 6 for lifting the blade 5, a slight tilting of the blade 5 can take place in accordance with the predetermined dependence influenced by the kinematic chain such that the material arranged in the blade 5 can not fall out of the blade. All mentioned components of the front loader 1 are pivoted or moved parallel to the pivoting plane 9 or in this. The pivot axes of the pivot bearings 8, 10, 12, 15, 16, 20, 22, 23, 25, 28, 29 are thus oriented vertically to the pivot plane 9. A front loader 1 has two parallel support structures 32, 33, each having a tractor-coupling device 2, an actuator 13, an arm 6, a control rod 26, at least one pivot plate 17, a lever 11, an actuator 18, a rocker 21 and have a coupling rod 24 and in the tug-coupling devices 2 facing away from each other end regions spaced from each other with the common tool carrier 3 are connected. In the two support structures 32, 33, the actuators 13, 18 are acted upon fluidly equal. In the figures, for ease of illustration, only the components of the support structure 32 are designated by reference numerals and reference lines, while the corresponding applies to the components of the support structure 33. With regard to such a generic front loader is also exemplified in the publication EP 1 903 147 B1 or US 5,405,237 A pointed.

As in the 1 and 2 can be seen, between the bottom of the control rod 26 and the top of the arm 6, a gap 31 is formed, the height of the actuation of the actuator 13 and the pivoting of the arm 6 (without actuation of the actuator 18) is dependent. The publication EP 1 799 917 B1 proposes to use a control rod 26 which has a downwardly open, U-shaped cross-section. The side legs of the U-shaped cross section overlap laterally with the arm 6, so that the arm 6 is arranged in a space bounded by the U-shaped cross-section receiving space. In this way, a laterally open gap 31 between the control rod 26 and the arm 6 can be avoided, which in turn can be avoided that in a gap 31 between the control rod 26 and the arm 6 soiling are deposited, the visual appearance of the front loader. 1 affect.

The non-generic document US 3,848,749 A discloses a manually lever-operated gallows-type lift crane intended for use in the manufacture of automobiles, namely for raising and lowering to handle parts of the automobile during assembly. The lifting crane has a U-shaped, parallel to the ground-oriented base support, which stands up with rollers on the ground and from which a supporting column extends vertically upwards. On the support column, an end region of a cross member is pivotably articulated in the upper end region. In the other end region of the cross member is pivotally mounted a support unit which carries a hook on which a rope or a chain is supported for suspending the part of the automobile, and on the upper side of a fastening device, for example, is arranged for a transmission of the automobile. A raising and lowering of the cross member (and thus a raising and lowering of the part of the automobile) via a pivoting of the cross member about the pivot bearing on the support column. This pivoting is brought about by a hydraulic lifting cylinder, whose one end region is supported on the support column, while the other end region is supported on the cross member. The hydraulic pressure and the hydraulic volume in the hydraulic lift cylinder can be changed manually via the hand lever and a hydraulic pump connected thereto. In order to ensure a functionally independent horizontal orientation of the support unit regardless of the pivot angle of the cross member, a parallel guide is used. The parallel guide has a guide rod which is articulated (in parallel alignment with the cross member) in one end region on the support column and in the other end region on the support unit. To avoid that a hand or a finger of the user is clamped in the manual operation of the lifting crane in the space between the guide rod and the cross member, a cladding is fixed to the guide rod, which has side walls, the space between the guide rod and the Cover the cross member sideways. The connection between the panel and the guide rod thereby designed so that the guide rod and the panel are moved together over the entire range of motion.

OBJECT OF THE INVENTION

• - des Gewichts,
• - der Abstützung der auf den Frontlader wirkenden Kräfte in den einzelnen Komponenten,
• - der einsetzbaren Materialien für Teilfunktionen übernehmende Komponenten,
• - der Reinigungs- und Wartungsmöglichkeiten und/oder
• - des optischen Erscheinungsbilds

verbessert ist.The invention has for its object to propose a front loader or a front loader partial lining, the or in particular with regard to

• - the weight,
• the support of the forces acting on the front loader in the individual components,
• - the components that can be used for subfunctional components,
• - The cleaning and maintenance options and / or
• - the visual appearance

is improved.

SOLUTION

The object of the invention is achieved with the features of the independent claims. Further preferred embodiments according to the invention can be found in the dependent claims.

DESCRIPTION OF THE INVENTION

• - eine hohe Masse der Steuerstange,
• - eine Einschränkung des Materials für die Seitenschenkel des U-förmigen Profils auf feste oder hochfeste Materialien,
• - eine Einschränkung der Wahl der Erstreckung der Seitenschenkel des U-förmigen Querschnitts,
• - eine Einschränkung der einsetzbaren Profile für die Steuerstange und/oder
• - eine Einschränkung der einsetzbaren Verfahren zur Herstellung der Steuerstange.

In particular, the present invention is based on the recognition that a control rod, like this according to FIG EP 1 799 917 B1 Use is found, applied with considerable forces, which are introduced in the region of the end pivot bearings in the control rod. The considerable forces cause the control rod to be subjected to considerable tensile or compressive stresses, to the application of buckling and to the application of a bending moment. Here, the side legs of the U-shaped cross section of the control rod according to EP 1 799 917 B1 also heavily used. An acting in the control rod bending moment has the consequence that the free end portions of the side legs of the U-shaped cross-section have a maximum distance from a neutral fiber of the control rod, which then can be maximally stressed. Accordingly, the solution according to EP 1 799 917 B1 a sufficiently large dimensions of the control rod and the wall thicknesses of the U-shaped cross section of the control rod ahead. Thus, a design according to EP 1 799 917 B1

• a high mass of the control rod,
• a restriction of the material for the side legs of the U-shaped profile to solid or high-strength materials,
• a restriction on the choice of the extension of the side legs of the U-shaped cross-section,
• - A limitation of the applicable profiles for the control rod and / or
• - A limitation of the applicable methods for the production of the control rod.

According to the invention (different from the publication EP 1 799 917 B1 ) formed between the control rod and the arm, a gap which is initially open in a direction vertical to the pivot plane. A closure of the gap in this direction is then carried out by a fairing. The cladding is formed separately from the control rod, so that the manufacture, the choice of manufacturing processes, the choice of material and the choice of geometry on the one hand for the cladding and on the other hand for the control rod can be made independently.

In addition, according to the invention, the cladding in the direction of possible deformations of the control rod during operation of the front loader perform a relative movement to the control rod. Preferably, a relative movement of one end portion of the panel relative to the adjacent end portion of the control rod is possible, while another end portion of the panel may well be pivotally or firmly connected to the control rod, the lever or the tractor-coupling device. This has the consequence that due to the considerable stresses of the control rod occurring deformations of the control rod need not equally lead to deformation of the panel, but rather ideally a deformation of the control rod can be done without this to a loading of the panel with forces and therefrom resulting deformation of the panel leads. In other words, the panel according to the invention is not loaded with forces acting on the front loader for supporting and holding the tool. As a result, the cowling does not have to be dimensioned according to the forces acting on the front loader, but merely has to be dimensioned such that it can fulfill the purposes of covering and closing the clearance in a direction vertical to the pivoting plane. It is also possible within the scope of the invention, however, that the cladding is not fixed axially in an end region but at any point over the longitudinal extent of the control rod or the arm or even the cladding is axially fixed at any point, but this (over a limited path) is axially displaceable relative to the control rod or the arm.

• - für die Mitte in Richtung der Längserstreckung der Verkleidung und der Steuerstange,
• - für einen mittigen Axialabschnitt der Verkleidung und der Steuerstange oder
• - über die gesamte Längserstreckung der Verkleidung und der Steuerstange abseits der Schwenklager

gilt. For the design of the mass, the area moment of inertia and / or the cross-sectional area on the one hand, the control rod and on the other hand, the panel there are many possibilities in the invention. For a proposal of the invention, the mass, the area moment of inertia and / or the cross-sectional area of the cladding is less than 10% (for example, even less than 5% or even 2% or 1%) of the mass, the area moment of inertia and / or the cross-sectional area of the control bar. this is preferably for the area moment of inertia and / or the cross-sectional area

• for the middle in the direction of the longitudinal extent of the lining and the control rod,
• - For a central axial section of the panel and the control rod or
• - Over the entire longitudinal extent of the panel and the control rod away from the pivot bearing

applies.

Also for the choice of materials for the panel and the control rod, there are many possibilities in the invention. So may well be the panel and the control rod made of the same material. For a proposal of the invention, the panel is made of a different material than the control rod, so that specifically an optimal material for the two components mentioned can be used. By way of non-limiting example, the control rod may be made of metal (eg, steel, cast iron in the various available compositions and strengths), while the trim may be made of plastic or even a fiber composite material. Alternatively or additionally, the cladding may be made in a different manufacturing process than the control rod. In order to give a non-limiting example in this regard, a cast profile or an extruded profile can be used for the control rod, while the panel is made in an injection molding process, in particular made of plastic.

• - parallel zueinander orientiert oder leicht in Richtung von dem oberen Querschenkel weg geöffnet ausgebildet sein können,
• - gleiche oder unterschiedliche Längen aufweisen können und/oder
• - geradlinig, abgeknickt oder kurvenförmig ausgebildet sein können.

For the design of the cross section of the panel there are many possibilities within the scope of the invention. For a variant of the invention, the cladding in cross-section on an upper transverse leg and two side legs, wherein the side legs, for example

• may be parallel to one another or slightly open in the direction away from the upper transverse leg,
• - may have the same or different lengths and / or
• - Can be rectilinear, kinked or curved.

As a rough approximation, for example, the cladding may have a cross section corresponding to an inverted U. For this embodiment, the transverse leg of the panel is arranged above the control rod. On the other hand, the two side legs extend on different sides of the control rod and the arm down, so they cover the gap on both sides.

For another variant of the invention, the cladding in cross section also has a transverse leg and two side legs. However, the side legs extend from the associated end portions of the transverse leg in different directions, respectively, so that one side leg extends upward while the other side leg extends downwardly. In this case, the transverse leg is arranged in the intermediate space between the control rod and the arm. On the other hand, a side leg extends up on one side and laterally of the control rod, while the other side leg extends down on another side and laterally of the arm. In this case, cover the side legs on different sides of different superimposed intermediate space parts of the gap from each other, which are separated by the transverse leg. For this embodiment, the panel may form a kind of Z-shaped cross-section, wherein the two parallel (side) legs of the Z are pulled apart so that the connecting (transverse) leg of the Z is vertical to the parallel (side) legs extends and the installation of this Z-shaped panel in a horizontal orientation of the elongated Z-shaped cross-section.

A connection of the panel to the front loader can be done in many ways within the scope of the invention. For example, the panel can be held on the arm, but this is then dimensioned such that upon a change in the relative position between the control rod and the arm, the control rod does not collide with the panel. For a particular embodiment of the invention, the cladding in the region of the pivot bearing, with which the control rod is mounted on the tractor-coupling device, connected to the tractor-coupling device. Finds the formation of the pivot bearing Use pivot pin, this pivot pin can be used even multifunctional for an embodiment of the invention by this also serves the connection with the panel. Alternatively or additionally, the panel in the region of the pivot bearing, with which the control rod is mounted on the lever, be connected to the bellcrank, whereby in this case a corresponding multi-functional use of a bearing pin for the formation of the pivot bearing can be done. Any connection technique can be used for the abovementioned connections, wherein a connection via a latching connection is also possible here, as will be explained in more detail below.

It is also possible that the panel spaced from the pivot bearing, with which the control rod is mounted on the tractor-coupling device is connected to the tractor-coupling device and / or the panel spaced from the pivot bearing, with which the control rod mounted on the lever is connected to the lever. Mixed forms of the aforementioned exemplary embodiments are also entirely possible, so that, for example, one end region of the lining in the region of a multifunctional pivot bearing for the bearing of the control rod on the tractor coupling device is connected to the tractor coupling device, while the other end region of the lining is spaced from the pivot bearing with which the control rod is mounted on the lever, is connected to the lever. Alternatively, it is possible for one end region of the lining in the region of a multifunctional pivot bearing for the bearing of the control rod on the deflection lever to be connected to the deflection lever, while the other end region of the lining is spaced from the pivot bearing with which the control rod is mounted on the tractor coupling device , is connected to the tractor-coupling device. Any connection technique can also be used for the connections mentioned here, wherein a connection via a latching connection is also possible here, as will be explained in more detail below.

As mentioned above, relative movements of the lining relative to the control rod are possible. This relative movement can be ensured according to a proposal of the invention in that a connection of the panel with the tractor coupling device and / or the reversing lever has a longitudinal degree of freedom. Here, the length of the longitudinal degree of freedom is preferably as large as or greater than the possible deformations of the control rod during operation of the front loader in the direction of the longitudinal degree of freedom. A provision of such a longitudinal degree of freedom can be done in any way, for which purpose preferably a slot is used, whose length dictates the length of the longitudinal degree of freedom. To name just one example, in principle, a bearing of the panel can be done via a bearing pin of a pivot bearing of the control rod without longitudinal freedom, while a bearing pin of another pivot bearing of the control rod is mounted and guided in a slot of the panel. For a change in length of the control rod then moves the bearing pin of the latter pivot bearing along the slot without the deformation of the control rod to the loading of the panel with longitudinal forces and stresses can take place.

• - abnehmbar ist oder
• - relativ zu der Steuerstange und/oder dem Arm in eine Öffnungsstellung verschwenkbar ist.

For a further proposal of the invention, the connection of the panel with the tractor-coupling device and / or the connection of the panel with the lever is releasable, so that the panel

• - is removable or
• - Is pivotable relative to the control rod and / or the arm in an open position.

The removal or pivoting of the panel in the open position can be used to on the one hand to clean the space between the control rod and the arm. Furthermore, the removal of the panel or the pivoting of the panel can be used in the open position to perform maintenance or repair work on the control rod, the involved pivot bearings or other components of the front loader. The detachable connection of the panel can be done in any way. For a particular simple proposal, the panel in the region of the connection with the tractor-coupling device or with the lever is open at the bottom, so that it can be easily raised in this connection area and can be pivoted to the then remaining pivot bearing in the open position. For this simple embodiment, the panel with its own weight is then on the tractor coupling device or the lever or a bearing pin of an associated pivot bearing. Any other releasable connection of the panel with a locking connection, a locking bolt u. Ä. But is also possible within the scope of the invention.

For the design of the cross section of the control rod, there are basically no restrictions in the context of the invention. For a proposal of the invention, the control rod is designed as a box profile with an interior and an edge-closed cross-section.

• - entweder über einen Querschnitt mit einem oberen Querschenkel sowie zwei Seitenschenkeln, wobei der Querschnitt einen nach unten offenen Aufnahmeraum ausbildet, in welchem ein oberer Teilabschnitt einer Steuerstange angeordnet werden kann (vgl. die obigen Ausführungen zu einem U-förmigen Querschnitt)
• - oder über einen Querschnitt mit einem Querschenkel und zwei sich jeweils von einem Endbereich des Querschenkels in unterschiedliche Richtungen erstreckenden Seitenschenkeln, deren Abstand größer ist als die Breiten einer Steuerstange und eines Arms eines zugeordneten Frontladers (vgl. die obigen Ausführungen zu einem Querschnitt entsprechend einem langgezogenen liegenden Z).

A further solution to the problem underlying the invention is provided by a front loader sub-panel intended for a front loader, as previously explained. This front loader part fairing has

• either over a cross-section with an upper transverse limb and two lateral limbs, wherein the cross-section forms a downwardly open receiving space in which an upper section of a control rod can be arranged (cf the above statements on a U-shaped cross section)
• or over a cross-section with a transverse limb and two side limbs each extending from one end region of the transverse limb in different directions, the distance of which is greater than the widths of a control rod and an arm of an associated front-end loader (see above for a cross-section corresponding to an elongated one lying Z).

The front loader body panel has a tug docking assembly mounting area disposed in an end portion of the front loader body panel and / or a bell crank mounting area disposed in the other end portion of the front loader body panel.

One of the mounting areas has a guide or receptacle which ensures a longitudinal degree of freedom, wherein it may be in the guide or recording, for example, a slot. Alternatively or additionally, it is possible for a mounting area or even both mounting areas to have / have a snap-in connection element, a clipped connection element or a tool element that can be detached without tools. In this case, assembly and disassembly of the front loader sub-panel with the front loader can be facilitated by connecting the front loader sub-panel to the front loader in the mounting area as a latching connection, clipped connection or tool-less releasable connection.

Such a front loader partial lining can be made at least partially or completely from any plastic material, for example in an injection molding process. Without this being intended to limit the invention to the choice of this material, the front loader partial lining (one or more pieces, in particular in an injection molding), for example, be made of an acrylonitrile-butadiene-styrene copolymer or ABS plastic.

Here, in the context of the invention, the cross section of the front loader sub-panel be dimensioned such and the rigidity and tensile strength of the front loader panel may be selected such that the front-loader sub-panel at a loading of the same with the operation of a front loader on a control rod and / or an arm-acting forces would fail. This refinement is based on the knowledge according to the invention that, precisely as a result of the embodiment according to the invention, the front-end loader partial lining is not acted on by the forces acting during operation of a front-end loader.

The desired longitudinal degree of freedom of the front loader sub-panel can be provided in any desired manner, in particular by a loose in the region of a superposed connection of the front-loader sub-panel. For a proposal of the invention, the longitudinal degree of freedom is provided by a spring element, which is arranged in the region of the guide or recording and between the front loader sub-panel on the one hand and the control rod, the arm, the tractor-coupling device, the lever or a pivot pin or otherwise Connecting element on the other hand acts. For example, to mention an example which does not limit the invention, an elastomeric sleeve may for example be arranged on a pivot pin or fastened to the control rod on which the front-end loader partial lining is then elastically supported. Then comes to a relative deformation between the front loader sub-panel and the device on which the front loader sub-panel is supported by the spring element, a compensation of the relative deformation can be compensated by a change in the bias of the spring element. In this case, the relative deformation only leads to small forces and stresses in the front loader sub-panel, the amount of which depends on the stiffness of the spring element and the extent of relative deformation, so that the amount on the choice of the stiffness of the spring element can be structurally predetermined.

• - eine Abstützung nur an zwei oder mehr Stellen erfolgt, die nicht in den Endbereichen angeordnet sind,
• - eine Abstützung nur in einem Endbereich und an mindestens einer Stelle zwischen den beiden Endbereichen erfolgt oder
• - eine Abstützung in den Endbereichen und zusätzlich an mindestens einer Stelle zwischen diesen beiden Endbereichen erfolgt.

It is possible within the scope of the invention that a support of the front loader sub-cladding takes place only in their end regions. The invention also includes embodiments in which, for example.

• a support takes place only at two or more points which are not arranged in the end regions,
• - A support only in one end region and at least one point between the two end regions takes place or
• - A support in the end regions and additionally takes place at least one point between these two end regions.

• - einem Endbereich oder einem in diesem Endbereich angeordneten Montagebereich für eine Schlepper-Kopplungseinrichtung und
• - dem anderen Endbereich oder einem in dem anderen Endbereich angeordneten Montagebereich für einen Umlenkhebel

mindestens ein Abstützelement angeordnet, über welches die Frontlader-Teilverkleidung an der Steuerstange oder dem Arm abgestützt ist. Hierbei kann die Abstützung ohne verbleibenden Freiheitsgrad erfolgen. Vorzugsweise erfolgt aber eine Abstützung zumindest mit einem Längs-Freiheitsgrad zur Ermöglichung von Relativverschiebungen zwischen der Frontlader-Teilverkleidung und der Steuerstange oder dem Arm. Vorzugsweise nimmt das Abstützelement die Steuerstange oder den Arm in einer Querebene spielfrei auf, während ein Längs-Freiheitsgrad verbleibt. For a special proposal is between

• - an end portion or arranged in this end region mounting area for a tractor-coupling device and
• - The other end portion or arranged in the other end portion mounting portion for a lever

at least one support element is arranged, via which the front loader partial lining is supported on the control rod or the arm. Here, the support can be done without remaining degree of freedom. Preferably, however, there is a support at least with a longitudinal degree of freedom to allow relative displacements between the front loader part panel and the control rod or the arm. Preferably, the support member receives the control rod or the arm in a transverse plane without play, while a longitudinal degree of freedom remains.

A connection between the support element and the control rod or the arm and the design of the support or contact surface can be configured as desired within the scope of the invention. For a proposal of the invention, this connection via a locking connection, a clip connection or a tool-free detachable connection. For this purpose, then has the front loader part panel a corresponding latching connection element, a clipped connection element or a tool-free detachable connection element. In order to merely mention an example which does not limit the invention, the front loader partial lining can have an elastically supported latching nose, which can then be latched to the arm or the control rod.

For a further proposal of the invention, the support element has a recess. The recess is bounded by at least one latching lug. The locking lug and the recess are designed and have a geometry such that it is possible that the control rod can be arranged in the recess, in which case the locking lug engages behind the control rod on the underside of the control rod to form the latching connection. For the production of the latching connection, for example, the latching lug can slide under elastic loading of the latching lug from above along the side surface of the control rod, whereby the control rod enters into the recess. At the end, the locking lug snaps behind the underside of the control rod, whereby the latching connection between the support element and thus of the front loader sub-panel and the control rod is created.

The invention proposes an embodiment in which the front loader sub-panel has at least one mounting area, in particular for a pivot pin or any other connecting element for the front loader sub-panel, which is formed by a recess. The recess has an edge opening and a receiving or guiding area. The receiving or guiding area is widened in relation to the edge opening. In this case, the receiving or guiding area can receive the pivot pin or the other connecting element with a precise fit or with a clearance, in particular in the direction of the longitudinal degree of freedom record. In any case, the edge opening is dimensioned smaller than the pivot pin or the other connection element. For the assembly of the front loader sub-panel with the pivot pin or the other connecting element, the mounting area of the front loader sub-panel on the pivot pin or the other connecting element (eg. From above) is postponed. With elastic widening of the edge opening (or elastic compression of the pivot pin or the other connecting element), the pivot pin or the other connecting element can enter the receiving or guiding region, which then the edge opening at least reducing the elastic expansion (or the elastic compression of the pivot pin or the otherwise connecting element) may again close behind the pivot pin or the other connecting element, whereby a secure connection due to the elasticity between the front loader part panel and the pivot pin or the other connection element is created.

In a front loader according to the invention, a front loader partial lining can be used which is connected to the front loader via a latching connection, a clip connection or a tool-less detachable connection. Preferably, this is a front loader part panel use, as has been explained before. Advantageous developments of the invention will become apparent from the claims, the description and the drawings. The advantages of features and of combinations of several features mentioned in the description are merely exemplary and can take effect alternatively or cumulatively, without the advantages having to be achieved by embodiments according to the invention. Without altering the subject matter of the attached claims, the following applies with respect to the disclosure content of the original application documents and the utility model: Further features can be found in the drawings - in particular the illustrated geometries and the relative dimensions of several components relative to one another and their relative arrangement and operative connection. The combination of features of different embodiments of the invention or features of different Protection claims are also deviating from the chosen relations of the protection claims possible and is hereby stimulated. This also applies to those features which are shown in separate drawings or are mentioned in their description. These features can also be combined with features of different protection claims. Likewise, features listed in the claims for further embodiments of the invention can be omitted.

The features mentioned in the claims and the description are to be understood in terms of their number that exactly this number or a greater number than the said number is present, without requiring an explicit use of the adverb "at least". So, when talking about an element, it is to be understood that there is / are exactly one element, two elements or more elements. These features may be supplemented by other features or be the only characteristics that make up the product in question.

The reference numerals contained in the claims do not represent a limitation on the scope of the protected by the claims objects. They only serve the purpose of making the protection claims easier to understand.

list of figures

• 1 und 2 zeigen in einer räumlichen Darstellung einen Frontlader gemäß dem Stand der Technik in unterschiedlichen Betriebsstellungen.
• 3 zeigt einen erfindungsgemäßen Frontlader mit einer Verkleidung in einer räumlichen Darstellung.
• 4 zeigt ein Detail des Frontladers gemäß 3 in einem Montagebereich einer Steuerstange und einer Verkleidung an einem Umlenkhebel.
• 5 zeigt einen Teilquerschnitt durch einen Frontlader gemäß 3 im Bereich eines Arms, einer Steuerstange und einer Verkleidung.
• 6 zeigt in einer 5 entsprechenden Darstellung einen Teilquerschnitt mit einer abweichenden Ausgestaltung einer Verkleidung.
• 7 zeigt in einer räumlichen Darstellung einen Teil eines Frontladers mit einer in eine Öffnungsstellung verschwenkten Verkleidung.
• 8 zeigt einen Teil eines Frontladers mit einer alternativen Ausgestaltung der Verkleidung und einer Verbindung der Verkleidung mit einer Schlepper-Kopplungseinrichtung und einem Umlenkhebel beabstandet von den zugeordneten Schwenklagern.
• 9 zeigt in einer räumlichen Darstellung einen Teil eines Frontladers mit einer alternativen Ausgestaltung der Verkleidung im Bereich einer Verbindung der Verkleidung mit der Schlepper-Kopplungseinrichtung in einem Montagebereich.
• 10 zeigt in einer räumlichen Darstellung die Verkleidung und deren Verbindung mit einer Steuerstange für eine Ausgestaltung des Frontladers gemäß 9.
• 11 zeigt in einer Seitenansicht die Verkleidung und deren Verbindung mit einer Steuerstange für eine Ausgestaltung des Frontladers gemäß 9 und 10.
• 12 zeigt ein Detail XII gemäß 11
• 13 zeigt in einem Schnitt XIII-XIII den Frontlader gemäß 9 bis 12 im Bereich einer Verbindung der Verkleidung mit der Steuerstange über ein Abstützelement.

In the following the invention will be further explained and described with reference to preferred embodiments shown in the figures.

• 1 and 2 show in a three-dimensional representation of a front loader according to the prior art in different operating positions.
• 3 shows a front loader according to the invention with a panel in a three-dimensional representation.
• 4 shows a detail of the front loader according to 3 in a mounting region of a control rod and a cover on a lever.
• 5 shows a partial cross section through a front loader according to 3 in the area of an arm, a control rod and a panel.
• 6 shows in one 5 corresponding representation of a partial cross-section with a different configuration of a panel.
• 7 shows a spatial representation of a part of a front loader with a pivoted in an open position panel.
• 8th shows a portion of a front loader with an alternative embodiment of the panel and a connection of the panel with a tractor-coupling device and a lever spaced from the associated pivot bearings.
• 9 shows in a three-dimensional representation of a part of a front loader with an alternative embodiment of the panel in the region of a connection of the panel with the tractor-coupling device in an assembly area.
• 10 shows in a three-dimensional view of the panel and its connection to a control rod for an embodiment of the front loader according to 9 ,
• 11 shows in a side view of the panel and its connection with a control rod for an embodiment of the front loader according to 9 and 10 ,
• 12 shows a detail XII according to 11
• 13 shows in a section XIII-XIII the front loader according to 9 to 12 in the region of a connection of the panel with the control rod via a support element.

DESCRIPTION OF THE FIGURES

For the embodiments according to the invention according to the 3 to 8th First, this applies to the embodiment according to the prior art, as this in 1 and 2 is shown and described at the beginning, said accordingly.

According to 3 extends the control rod 26 inside a disguise 34 holding a front loader part panel 35 forms. The costume 34 is not part of the support structure 32 , 33, because they do not use the forces to hold the tool 4 and that of the actuators 13 , 18 induced forces is applied. The costume 34 has an assembly area in one end area 36 , in the area of the panel 34 with the tractor coupling device 2 connected is. For the illustrated embodiment, this is done by a pivot pin of the pivot bearing 28 through a bearing eye of the assembly area 36 the disguise 34 extends, making this connection a pivoting of the panel 34 opposite the tractor coupling device 2 allows. In the other end area has the fairing 34 over a mounting area 37 , in the area of the panel 34 with the lever 11 connected is. For the illustrated embodiment, this is done by a pivot pin 38 of the pivot bearing 29 through a bearing eye 39 of the assembly area 37 the disguise 34 extends. In the bearing eye 39 is with little play or clearance of the pivot pin 38 in a direction transverse to the longitudinal extent of the control rod 26 and the disguise 34 in the swivel plane 9 guided. Thus, the storage of the pivot pin prevents 38 in the bearing eye 39 a pivoting of the panel 34 around the pivot bearing 28 so that the fairing 34 occupies a defined position. The bearing eye 39 is for the illustrated embodiment (see. 4 ) as a slot 40 formed, wherein the longitudinal extent of the elongated hole 40 coaxial with the longitudinal axis of the control rod 26 oriented or in the direction of possible deformations of the control rod 26 (Preferably a change in length of the same) is oriented. The length of the oblong hole 40 is chosen such that a displacement of the pivot pin 38 in the bearing eye 39 along the long hole 40 to an extent possible, which of the maximum in an operation of the front loader at the allowable loads induced deformations (in particular length change) of the control rod 26 equivalent.

In the cross section according to 5 It can be seen that for the illustrated embodiment, both the arm 6 as well as the control rod 26 as box profiles 41 . 42 are formed.

A wall thickness 43 the cladding is smaller than the wall thickness by a factor of at least 5, at least 7, at least 10 or at least 15 44 the control rod 26 or the wall thickness 45 of the arm 6 ,

The costume 34 has in the illustrated cross section over a transverse leg 46 , which is oriented horizontally and with a small distance above the control rod 26 is arranged. From the end regions of the transverse leg 46 Side legs extend 47 . 48 down, with these side legs 47 . 48 on different sides over the entire height of the control rod 26 extend, on both sides of the gap 31 between the control rod 26 and the arm 6 cover and with in their free end areas still laterally on different sides of the arm 6 extend. It is possible that as shown the side legs 47 . 48 have different lengths. In 3 It can be seen that this is the shorter side leg 47 on the side of the supporting structure 32 (or 33) is arranged, that of the other support structure 33 (or 32) faces. In addition, according to 3 the longitudinal extent of the side legs in the direction of a central axial section of the panel 34 increase, and it is even possible that in the end areas of the side legs 47 . 48 so short are these that the gap 31 Do not cover it here or not completely. For the embodiment according to 5 form the transverse leg 46 and the side legs 47 , 48 a cross section corresponding to an inverted U, wherein it is also possible that the distance between the side legs 47 . 48 with increasing distance from the transverse leg 46 increased. The transverse leg 46 and the side legs 47 . 48 form a recording room 49 in which the control rod 26 is completely arranged and in which the arm 6 partially arranged.

6 shows an alternative embodiment of a panel 34 , Also for this embodiment has the cross section of the panel 34 over a transverse leg 50 as well as two side legs 51 . 52 , In this case, however, the side leg extends 52 from an end region of the transverse leg 50 down while the other side leg 51 from the other end region of the transverse leg 50 extends upwards. The side leg 51 extends laterally on one side of the control rod 26 while the side legs 52 laterally and on the other side of the arm 6 extends. A cover of the gap 31 between the control rod 26 and the arm thus takes place in an upper intermediate part 53 of the intermediate space 31 on one side through the side legs 51 while this in the other space part 54 of the gap 31 on the other side through the side legs 52 he follows. The gap 31 is in this case by the transverse leg 50 in the two intermediate space parts 53 . 54 divided.

For the in 7 illustrated embodiment has the panel 34 in the assembly area 36 not via an edge-closed bearing eye. Rather, the assembly area 36 open here down, leaving the panel 34 Here only with its own weight on the pivot pin of the pivot bearing 28 rests. In this case, the bearing eye of the fairing 34 in the assembly area 37 be closed at the edge and formed without a slot. For this embodiment, as in 7 represented, the disguise 34 be unfolded in an open position, in which the control rod 26 , the arm 6 and also the gap 31 are freely accessible for maintenance or cleaning.

8th shows a further modified embodiment, in which not the connection of the panel 34 with the tractor coupling device 2 and the bellcrank 11 in the area of the pivot bearings 28 . 29 he follows. Rather, the connection is made at intervals 55 . 56 from the pivot stores 28 . 29 by a suitable connection technique, wherein preferably also here the mounting areas 36 . 37 the disguise 34 with a longitudinal degree of freedom 57 are equipped.

For the embodiments shown here is the panel 34 in a pivot bearing 28 , 29 of the control rod supported (see the embodiment according to 3 ) or the fairing 34 is on the tractor coupling device 2 and the bellcrank 11 supported (see the embodiment according to 8th ). Within the scope of the invention, however, it is also possible for the lining to be supported exclusively or with one of two or more support points 34 on the control rod 26 or even the arm 6 take place, then for one embodiment, a guarantee of the longitudinal degree of freedom at the support point on the control rod 26 or on the arm 6 can be done.

For that in the 9 to 12 illustrated embodiment is the pivot bearing 28 , via which a connection of the control rod 26 with the tractor coupling device 2 done with a sleeve 58 formed on one end of the control rod 26 is attached. Through this sleeve 58 extends to form a rotary slide bearing a bearing pin 59 , which in the two end regions on the tractor coupling device 2 is held. In this case, the sleeve forms 58 a connecting element 60 , via which a connection and support of the paneling 34 he follows.

For the illustrated embodiment, the panel has 34 about a U-shaped cross section, wherein in the direction of the center of the longitudinal extent of the length of the side legs 47 , 48 trapezoidal increases. In the end areas of the paneling 34 has these open-edged recesses down 61 on, which are aligned in the transverse direction y to each other and each in the side legs 47 . 48 are arranged.

As in particular in 12 The recesses are recognizable 61 the disguise 34 each over an edge opening 62 and a receiving and / or guide area arranged above it 63 , The recording and / or management area 63 is basically according to the outer contour of the connecting element 60 formed, but with an excess in the longitudinal direction x, so that between the panel 34 and the connecting element 60 on both sides of a game 64a, 64b in the longitudinal direction x forms, so that a longitudinal degree of freedom 57 is guaranteed. By contrast, the edge opening 62 with an undersize to the dimensions of the connecting element 60 , here to the diameter of the sleeve 58 , educated. The edge opening 62 and the recording and / or leadership area 63 are bounded on the outer side by a bridge 65 , which is dimensioned so that it can spring up elastically with a concomitant enlargement of the edge opening 62 to an extent that is greater than the dimension of the connector 60 , here the diameter of the sleeve 58 ,

For a mounting of the panel 34 on the connecting element 60 becomes the fairing 34 from above on the connecting element 60 placed. The front of the bridge 65 slides on the lateral surface of the connecting element 60 under elastic expansion of the web 65 , Has the jetty 65 the maximum diameter of the sleeve 58 happens, the bridge snaps 65 behind the maximum diameter of the sleeve 58 in the in 12 effective assembly position. In this mounting position lies the panel 34 with its own weight on top of the connecting element 60 at. The longitudinal degree of freedom 57 is as a result of the game 64 effective. A slight movement of the panel 34 upwards relative to the connecting element 60 is possible until the jetty 65 for engagement with the connecting element 60 comes. Thus, the connecting element 60 in the recess 61 captured. Disassembly of the panel 34 from the connecting element 60 is by applying sufficient disassembly forces, by means of which then an elastic expansion of the web 65 and an enlargement of the edge opening 62 takes place, possible.

It is possible that such a clipped connection in both mounting areas 36 . 37 takes place in the two end regions, which also in both end regions a longitudinal degree of freedom 57 for relative movements of the panel 34 opposite the control rod 26 is provided. But it is also possible that in the area of an assembly area 37 another connection is made, whereby it is also possible that here the receiving and / or guide area 63 without any play 64a, 64b a connecting element 60 absorbs, so that the compound thus formed no longitudinal degree of freedom 57 and only one rotation of the panel 34 opposite the control rod 26 allows when the connection in the other end area is released. It is understood that even in a mounting area a permanent connection between the panel 34 and the control rod 26 (possibly with a remaining degree of pivoting freedom) can take place, while then in the other mounting area a connection with a longitudinal degree of freedom 57 , for example, with an embodiment according to 12 , he follows.

For that in the 9 to 13 illustrated embodiment is carried out a support of the panel 34 on the control rod 26 not exclusively in the end areas or assembly areas 36 . 37 , Rather, support elements 66a, 66b are provided between the end areas or mounting areas 36, 37, via which an additional support of the cladding is also provided between the end areas or mounting areas 34 on the control rod 26 he follows. Preferably, the support elements ensure 66 a support of the panel 34 at the control rod 26 leaving a longitudinal degree of freedom 57 ,

For the illustrated embodiment, the support elements are in a rough approximation U-shaped with a base leg 67 and two side legs 68 . 69 (see. 13 ). In the area of the base leg 67 An attachment of the support elements 66 on the outer material areas of the cladding 34 , in particular in the region of the transverse leg 46. By contrast, form the side legs 68 . 69 in the transverse direction y elastic spring arms, which is a game in the transverse direction y to the side legs 47 . 58 form the panel so that they can spring open in the transverse direction y to the outside. The side legs 68 . 69 each have in the base leg 67 remote end region via inwardly oriented locking lugs 70 . 71 , At least the distance of the mutually facing end faces of the locking lugs 70, 71 in the transverse direction y is smaller than the extension of the control rod 26 in the transverse direction y.

Will the fairing 34 from above on the control rod 26 are placed on insertion bevels the locking lugs 70 . 71 under elastic expansion of the side legs 68 . 69 pressed outwards and the locking lugs 70 . 71 can slide down the side surfaces of the control rod 26 until they are in the in 13 shown end position behind the control rod 26 engage, bringing a latching connection between the support elements 66 and the control rod 26 is created.

Preferably, both the panel 34 as well as the support elements 66 made of plastic, whereby a one-piece production of plastic in an injection molding process using a corresponding injection mold is possible. In the in 13 mounted position is the control rod 26 between the base leg 67 the support elements 66 and the locking lugs 70 . 71 caught in the vertical direction z, while the control rod 26 in the transverse direction y between the side legs 68 . 69 the support element 66 is caught.

The elastic over the side legs 68 . 69 supported latching noses 70 . 71 form a snap-in connection element, a clipped connection element or a tool-free releasable connection element 72 , The base leg 67 , the side legs 68 . 69 and the locking lugs 70, 71 form a downwardly open recess 73 in which, in the assembled state, the control rod 26 is caught. Both between the support elements 66 and the control rod 26 as well as between the mounting areas 36 . 37 the disguise 34 and the control rod 26, the arm 6 , the tug coupling device 2 or the bellcrank 11 or a pivot pin or a connecting element 60 the same is in each case a latching connection, clipped connection or a tool-free detachable connection 74 educated.

LIST OF REFERENCE NUMBERS

1

Front loaders

2

Tractor-coupling device

3

tool carrier

4

Tool

5

shovel

6

poor

7

angling

8th

pivot bearing

9

pivot plane

10

pivot bearing

11

Umlenkhebel

12

pivot bearing

13

actuator

14

hydraulic cylinders

15

pivot bearing

16

pivot bearing

17

pivot plate

18

actuator

19

hydraulic cylinders

20

pivot bearing

21

wing

22

pivot bearing

23

pivot bearing

24

coupling rod

25

pivot bearing

26

control rod

27

arm

28

pivot bearing

29

pivot bearing

30

pan direction

31

gap

32

supporting structure

33

supporting structure

34

paneling

35

Front loading part panel

36

assembly area

37

assembly area

38

pivot pin

39

bearing eye

40

Long hole

41

box section

42

box section

43

Wall thickness

44

Wall thickness

45

Wall thickness

46

transverse leg

47

side leg

48

side leg

49

accommodation space

50

transverse leg

51

side leg

52

side leg

53

Clearance part

54

Clearance part

55

distance

56

distance

57

Longitudinal degree of freedom

58

shell

59

bearing bolt

60

connecting member

61

recess

62

peripheral opening

63

Recording and / or management area

64

game

65

web

66

supporting

67

base leg

68

side leg

69

side leg

70

locking lug

71

locking lug

72

Snap-in connection element, clipped connection element or tool-free detachable connection element

73

recess

74

Locking connection, clipped connection or tool-free detachable connection

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1903147 B1 [0002]
• US 5405237 A [0002]
• EP 1799917 B1 [0003, 0007, 0008]
• US 3848749 A [0004]

Claims (24)

Front loader (1) with a) a tractor-coupling device (2), b) a tool carrier (3), c) an angled arm (6), which in an end region via a pivot bearing (8) pivotable in a pivoting plane (9) the tractor-coupling device (2) is connected and in another end region via a pivot bearing (10) pivotally connected to the tool carrier (3), d) a reversing lever (11) via a pivot bearing (12) pivotally mounted on the arm ( 6), e) an actuator (13), via which the arm (6) is pivotable relative to the tractor coupling device (2), f) an actuator (18), via which the tool carrier (3) relative to the Arm (6) is pivotable and about a pivot bearing (20) pivotally supported on the lever (11), and g) a control rod (26) via a pivot bearing (28) pivotally mounted on the tractor coupling device (2) is and via a pivot bearing (29) pivotable on the U h) wherein an actuation of the actuator (13), via which the arm (6) is pivotable relative to the tractor coupling device (2), to ha) caused by the control rod (6) pivoting of the Deflection lever (11) relative to the arm (6) and hb) thereby associated pivoting of the tool carrier (3) relative to the arm (6) leads, and i) wherein a height of a gap (31) between the control rod (26) and the Arm (6) with an actuation of the actuator (13), via which the arm (6) is pivotable relative to the tractor-coupling device (2), characterized in that j) the gap (31) in a direction vertical to Swing plane (9) by a cover (34) is closed, which is formed separately from the control rod (26) and in the direction of possible deformations of the control rod (26) during operation of the front loader (1) can perform a relative movement to the control rod (26) , Front loader (1) to Claim 1 , characterized in that a) a mass, b) an area moment of inertia and / or c) a cross-sectional area of the cladding (34) is less than 10% of the mass, the area moment of inertia and / or the cross-sectional area of the control rod (26). Front loader (1) to Claim 1 or 2 , characterized in that the lining (34) is made of a different material and / or b) in a different manufacturing method than the control rod (26). Front loader (1) according to one of the preceding claims, characterized in that a) the cladding (34) in cross-section an upper transverse leg (46) and two side legs (47, 48), b) the transverse leg (46) of the cross section of the cladding (34) is disposed above the control rod (26) and c) the two side legs (47, 48) of the cross section of the panel (34) on different sides of the control rod (26) and the arm (6) extending downward and the gap (31) on both sides. Front loader (1) after one of Claims 1 to 3 , characterized in that a) the lining (34) in cross section has a transverse limb (50) and two lateral limbs (51, 52) extending in different directions from one end region of the transverse limb (50), b) the transverse limb (50) the cross section of the fairing (34) is located in the space (31) between the control rod (26) and the arm (6) and c) is a side leg (51) of the cross section of the fairing (34) on one side and laterally of the control rod (26) extends upwardly and the other side leg (52) of the cross section of the panel (34) on a different side and laterally of the arm (6) extends downwardly. Front loader (1) according to any one of the preceding claims, characterized in that the lining (34) a) in the region of the pivot bearing (28), with which the control rod (26) is mounted on the tractor-coupling device (2) with the tractor Coupling device (2) is connected, and / or b) in the region of the pivot bearing (29), with which the control rod (26) is mounted on the reversing lever (11) is connected to the reversing lever (11). Front loader (1) according to one of the preceding claims, characterized in that the lining (34) a) spaced from the pivot bearing (28), with which the control rod (26) is mounted on the tractor-coupling device (2), with the tractor Coupling device (2) is connected, and / or b) spaced from the pivot bearing (29), with which the control rod (26) is mounted on the lever (11), with the lever (11) is connected. Front loader (1) according to one of the preceding claims, characterized in that the connection of the lining (34) a) with the tractor-coupling device (2) and / or b) with the reversing lever (11) has a longitudinal degree of freedom (57) , Front loader (1) according to one of the preceding claims, characterized in that the connection of the lining (34) a) with the tractor coupling device (2) and / or b) with the reversing lever (11) is releasable, whereby the lining (34 ) is removable or relative to the control rod (26) and / or the arm (6) is pivotable in an open position. Front loader (1) according to one of the preceding claims, characterized in that the control rod (26) is designed as a box profile (41). Front loader part cover (35) for a front loader (1) according to any one of the preceding claims with a) a cross section with an upper transverse leg (46) and two side legs (47, 48) forming a downwardly open receiving space (49) in which a control rod (26) and partially an arm (6) can be arranged, or a cross-section with a transverse limb (50) and two lateral limbs (51, 52) each extending from one end region of the transverse limb (50), the distance of which is greater than the widths of a control rod (26) and an arm (6) of one associated front loader (1), b) a mounted in an end region mounting portion (36) for a tractor coupling device (2) or for a connecting element (60) and / or arranged in an end region mounting portion (37) for a reversing lever (11) or for a connecting element, c) at least one mounting area (36, 37) ca) a longitudinal degree of freedom (57) ensuring leadership or recording, cb) has at least one latching connection element, a clipped connecting element or a tool-free releasable connecting element (72). Front loader part panel (35) to Claim 11 , characterized in that the front loader partial lining (35) is made partially or completely of plastic. Front loader part panel (35) to Claim 11 or 12 , characterized in that the cross section of the front loader sub-fairing (35) is dimensioned and the stiffness and tensile strength of the front loader sub-fairing (35) are selected such that the front-loader sub-fairing (35) at a loading of the same with the in operation of a Front loader would fail on a control rod (26) and / or an arm (6) of the front loader (1) acting forces. Front loader part fairing (35) after one of Claims 11 to 13 , characterized in that in at least one mounting region (36, 37) a longitudinal degree of freedom (57) is ensured by a guide or recording by means of a spring element acted upon in the longitudinal direction. Front loader part fairing (35) after one of Claims 11 to 14 , characterized in that between an end portion or arranged in this end region mounting portion (36) for a tractor coupling device (2) or a connecting element (60) and the other end portion or in the other end portion arranged mounting portion (37) for a lever (11) or a connecting element at least one support element (66) is arranged, via which the front loader partial lining (35) on the control rod (26) and / or the arm (6) can be supported. Front loader part fairing (35) after one of Claims 11 to 15 , characterized in that the support element (66) has a latching connection element, a clipped connection element or a tool-free releasable connection element (72). Front loader part panel (35) to Claim 16 , characterized in that the support element (66) by at least one latching lug (70, 71) limited recess (73), wherein the latching lug (70, 71) and the recess (73) are designed such that the control rod (26 ) can be arranged in the recess (73) and the latching lug (70, 71) engages behind the control rod (26) on the underside of the control rod (26). Front loader part fairing (35) after one of Claims 11 to 17 , characterized in that the front loader partial lining (35) has a mounting area (36, 37) which has a recess (61) which has an edge opening (62) and an opening or guide area (62) which is widened over the edge opening (62). 63). Front loader (1) with a control rod (26) and an arm (6), which are pivotable in a pivoting plane (9), in particular front loader (1) according to one of Claims 1 to 10 characterized in that a clearance (31) between the control rod (26) and the arm (6) in a direction vertical to the pivoting plane (9) by a fairing (34), in particular by a front loader part fairing (35) according to one of Claims 11 to 18 , is closed, which is connected via a latching connection, a clip connection or a tool-less releasable connection (74) with the front loader (1). Front loader (1) to Claim 19 , characterized in that in at least one mounting region (36, 37) a longitudinal degree of freedom (57) is ensured by a guide or recording by means of a spring element acted upon in the longitudinal direction, which between - the front loader partial lining (35) and - the control rod ( 26), the tractor-coupling device (2), the reversing lever (11), a pivot pin (38) or a connecting element (60) is arranged. Front loader (1) to Claim 19 or 20 , characterized in that between an end region of the front loader partial lining (35) or an assembly area (36) arranged in this end region for a tractor coupling device (2) or for a connecting element (60) and the other end region of the front loader partial lining (35 ) or arranged in the other end region mounting portion (37) for a reversing lever (11) or for a connecting element at least one support element (66) is arranged, via which the front loader partial lining (35) on the control rod (26) and / or the Arm (6) is supported. Front loader (1) to Claim 21 , characterized in that the support element (66) via a latching connection, a clip connection or a tool-less releasable connection (74) with the control rod (26) or the arm (6) is connected. Front loader (1) to Claim 22 , characterized in that the support element (66) by at least one latching lug (70, 71) limited recess (73), wherein the control rod (26) in the recess (73) is arranged and the latching lug (70, 71) Control rod (26) engages behind in the region of the underside of the control rod (26). Front loader (1) after one of Claims 19 to 23 , characterized in that a) the front loader partial lining (35) has a mounting region (36, 37) which is formed by a recess (61) which has an edge opening (62) and an opening opposite the edge opening (62). or b) a pivot pin (38) or a connecting element (60), which or which of the control rod (26), the arm (6), the tractor-coupling device (2) or the lever (11 ) is formed or worn, with elastic widening of the edge opening (62) in the receiving or guide portion (63) is inserted.

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