EP2775032B1 - Soil compactor - Google Patents

Description

The present invention relates to a soil compactor, comprising a compressor roller rotatably supported on a compressor frame about an axis of rotation, wherein the compressor frame comprises longitudinal frame portions in the direction of the rotational axis on both sides of the compactor and a first transverse frame portion connecting the longitudinal frame portions substantially extending in the direction of the axis of rotation.

Such a soil compactor is for example from the post-published DE 10 2011 085 240 A1 known. The compressor frame rotatably supporting the compressor frame essentially forms a front end of the soil compactor, which is pivotally connected to a rear carriage. At the rear of a drive unit is provided, which transmits a driving force on the rear wheel also provided drive wheels and which also provides the drive power for a provided in the compressor roller vibration and / or oscillation mechanism. Furthermore, a cab is provided at the rear. By the pivotable connection of the front end, so the compressor frame, to the rear, it is possible to control the soil compactor in its forward or backward movement.

From the JP 2007/152999 A a soil compactor is known in which a receiving space for a drive unit of the soil compactor is provided on a transversely hinged to a front frame transverse frame region of a rear carriage. This receiving space can be locked by a flap which can be swung upwards.

The DE 23 51 537 A1 discloses a soil compactor having a compacting roller rotatably supported on a compressor frame of a front carriage. In a provided before the compressor roller, so on the end remote from the rear end portion of the front carriage transverse frame area a storage space for ballast material is provided. The storage space can be closed by closing flaps which can be swung upwards.

The DE 10 2005 015 861 A1 discloses a utility vehicle cab that a user may enter via a fixed access entry device provided in the lower area of the cab.

It is the object of the present invention to provide a soil compactor, in which the possibility is created to carry out maintenance work, for example, on the outer circumference of the compressor roller, even with comparatively large soil compactors.

According to the invention, this object is achieved by a soil compactor comprising a compressor roller rotatably supported on a compressor frame about an axis of rotation, wherein the compressor frame comprises longitudinal frame regions in the direction of the rotation axis on both sides of the compressor roller and a first transverse frame region connecting the longitudinal frame regions substantially extending in the direction of the axis of rotation , At the first transverse frame area a movable between a stowed position and a working position work appearance is provided.

In this case, the work appearance in its stowed position can complete at least one storage space provided in the first transverse frame area, so that the work appearance can provide not only this functionality but also the functionality of a closure element for the at least one storage space.

Furthermore, it can be provided that at least one lockable storage space is provided in the first transverse frame area by means of a closing element movable between a closed position and an open position, so that the space available is efficient is exploited.

The space available in the compressor frame, which is generally made up of hollow components, is used in the embodiment according to the invention for providing storage space. In this storage space tools or other material, such. As well as ballast material, are stored, if this is necessary or advantageous for the operation of the soil compactor.

In a very stable, structurally simple to implement embodiment, the locking element may preferably comprise a pivotable between the open position or closed position flap, wherein more preferably the closure flap on the first transverse frame portion is pivotally supported.

In order to be able to store larger objects in the storage space or to gain easy access to the internal volume of the storage space, it is further proposed that the at least one storage space be open through an upper opening area in the upward direction and through a lateral opening area in the direction of the Compressor roller is open and that the closing element comprises in the closed position, the lateral opening portion closing first Abschließelementenabschnitt and includes a relative to the first Abschließelementenabschnitts angled or angled and in the closed position the upper opening portion final second Abschließelementenabschnitt.

In such a configuration, for example, the first Abschließelementenabschnitt be pivotally connected to the first transverse frame area, advantageously in an area under the lateral opening area.

An increased functionality can be achieved in the construction according to the invention if, when the closing element is positioned in the open position, the second closing element area is oriented substantially horizontally. Thus, the closing element can be used in its open position as a work appearance. For example, an operator may use this work site to load or unload items from the at least one storage space or to perform maintenance on the compactor roll or on the compactor frame.

For movement of the closing element between the closed position of the open position, this can be assigned to at least one preferably pressure-fluid-actuated actuator. This allows the use of comparatively large or massively constructed locking elements.

In order to be able to give a high level of stability to an operator standing on the work site and, for example, carrying out maintenance work on the compressor roller, it is further proposed that at least one grab handle preferably extending in the direction of the axis of rotation is provided on the first transverse frame area.

In order to keep a person controlling a ground compactor according to the invention holding the track, for example, by means of a line delimiting or extending in the area to be compacted, it is proposed that at least one track indicator be slidably carried along at least one handle in the longitudinal direction of the handle.

The soil compactor according to the invention can also be constructed in such a way that the longitudinal frame regions are connected to one another by a second transverse frame region such that the compacting roller is arranged between the first transverse frame region and the second transverse frame region, wherein the second transverse frame region is preferably pivotably connected to a rear carriage and at the rear carriage Drive unit and / or a cab is provided.

It can further be provided that at least one preferably replaceable roller tool is positioned or positionable on an outer circumferential surface of the compressor roller. By providing tools on the outer circumference of the compressor roller, this can be adapted to different applications, in particular if such tools are exchangeable.

Fig. 1

einen Bodenverdichter in Seitenansicht;

Fig. 2

in perspektivischer Ansicht einen Vorderwagen eines Bodenverdichters mit in einer Schließstellung positioniertem Abschließelement;

Fig. 3

den Vorderwagen der Fig. 2 mit in einer Offenstellung positioniertem Abschließelement;

Fig. 4

eine Querschnittdarstellung eines Querrahmenbereichs bei in der Schließstellung positioniertem Abschließelement;

Fig. 5

eine der Fig. 4 entsprechende Darstellung bei in der Offenstellung positioniertem Abschließelement;

Fig. 6

eine Seitenansicht des Vorderwagens mit in der Offenstellung positioniertem und als Arbeitsauftritt genutztem Abschließelement;

Fig. 7

das Detail VII in Fig. 2 vergrößert.

The present invention will be described below in detail with reference to the accompanying drawings. It shows:

Fig. 1

a soil compactor in side view;

Fig. 2

a perspective view of a front end of a soil compactor with positioned in a closed position Abschließelement;

Fig. 3

the front of the Fig. 2 with a locking element positioned in an open position;

Fig. 4

a cross-sectional view of a transverse frame region in the closed position positioned Abschließelement;

Fig. 5

one of the Fig. 4 corresponding representation in positioned in the open position Abschließelement;

Fig. 6

a side view of the front end with positioned in the open position and used as a work appearance Abschließelement;

Fig. 7

the detail VII in Fig. 2 increased.

In Fig. 1 For example, a soil compactor shown in side view is generally designated 10. The soil compactor 10 comprises a front carriage 12 with a compressor roller 16 rotatably supported on a compressor frame 14 about a rotation axis D. The front carriage 12 is pivotally connected to a rear carriage 20 in a joint region 18 and is pivotable about a substantially vertically oriented pivot axis. At the rear carriage 20, a drive unit is provided, through which two drive wheels 22 provided on the rear carriage 20 can be driven in order to move the soil compactor 10 over the substrate 24 to be processed. This drive can at the same time also provide the drive energy for driving a provided in the compressor roller 16 vibration and / or oscillation mechanism. At the rear of the vehicle 20, a cab 26 is further provided, in which a compressor 10 controlling operator 28 can take place.

The Fig. 2 and 3 show a perspective view of the front of the car 12 of the soil compactor 10 when viewed from the front. The front carriage 12 includes in the direction of the rotational axis D on both sides of the compressor roller 16, so axially spaced, two longitudinal frame portions 30, 32. These are connected at their remote from the rear end portion 20 by a first transverse frame portion 34, which is between the two longitudinal frame portions 30th , 32 extends substantially in the direction of the axis of rotation D. At its end region facing the rear carriage 20, the two longitudinal frame regions 30, 32 are interconnected by a second transverse frame region 36, so that the compressor roller 16 is positioned substantially transversely to the axis of rotation D between the first transverse frame region 34 and the second transverse frame region 36. With the second transverse frame portion 36 of the front carriage 12 and the compressor frame 14 of the same with the rear carriage 20 is pivotally connected.

In the first transverse frame region 34, a memory space, generally designated 38, is formed. This is divided by a partition 40 into two storage space compartments 42, 44. By an upper opening portion 46 of the storage space 38 is open substantially in the upward direction. By a lateral opening portion 48 of the storage space 38 is substantially in the direction of the compressor roller 16 away, so referred to a forward direction of travel towards the front, open.

In a region below the lateral opening region 48, a closure element 50 embodied as a closure flap is mounted pivotably on the first transverse frame region 34. For this purpose, a plurality of joints or hinges 52 following one another in the direction of the axis of rotation D can be used. The closing element 50 comprises a first closing element section 54, which is substantially plate-like, for example. This is pivotably supported by the hinges 52 or the like on the first transverse frame section 34. A second closing element section 56 extends at an angle to the first element section 54, for example, at an angle of approximately 90 °. The two Abschließelementenabschnitte 54, 56 may be formed separately and with each other z. B. be formed by welding connected plate elements. In principle, the closing element 50 can also be constructed from a plate part which provides the two locking element sections 54, 56 and is bent into the required shape. In order to increase the structural stability of the closure element 50, a plurality of angle-like stiffening elements 58 may be connected in the direction of the rotation axis D at a distance from each other, for example by welding to the two closure element sections 54, 56. Alternatively, the two Abschließelementenabschnitte 54, 56 may also be pivotally connected to each other, then further measures may be provided to ensure that when positioned in the open position Abschließelement 50, the two Abschließelementenabschnitte 54, 56 are held in a defined angled positioning each other, for example the in Fig. 3 recognizable positioning.

To the locking element 50 between his in Fig. 2 recognizable closed position and its in Fig. 3 recognizable open position to be able to move back and forth, in the example shown the Abschließelement 50 two actuators 60, 62 assigned. In this case, the actuator 60 can act on one-in relation to the axis of rotation D-longitudinal end region of the closure flap, while the actuator 62 can engage in a longitudinal center region. The actuators 60, 62 may be pressure fluid actuated, so for example, a pressurized or pressurized oil and, for example, double-acting piston / cylinder comprise organ which is supported on the closing element 50 on the one hand and on the compressor frame 14 on the other hand directly or indirectly and by pressurized fluid or Druckfluidabfuhr the Abschließelement 50 between the in the Fig. 2 and 3 shown positions can move back and forth. At the same time, at least one of these actuators 60, 62 can also serve to stably lock the closure element 50 in the closed position or also the open position, so that when the closure element is positioned in the closed position the storage space 38 is reliably secured secured against unauthorized manipulation and in the open position the locking element 50 is kept stable and secured against undefined pivoting. Of course, it is also possible, if necessary, to hold the locking element 50 in an intermediate position between the closed position and the open position or to lock.

The 4 and 5 show on the basis of the actuator 62, the structure and the operation of such an actuator. The actuator 62 comprises a piston / cylinder member 80, which may be articulated, for example with an end portion of its cylinder 82 on the transverse frame portion 34, for example, the partition 40. With one end of a piston rod 84, the piston / cylinder member 80 is pivotally connected to a first pivot lever 86, for example in a region between the two end portions 88, 90. A first end portion 88 of the pivot lever 86 is pivotally mounted, for example in the region of the partition 40 , A second end portion 90 is hinged to a first end portion 92 of a second pivot lever 94. Whose second end portion 96 is pivotally connected to the Abschließelement 50, and that eccentric to the pivot axis of the same. When Druckfluidbeaufschlagung the piston / cylinder member 80 for extending the piston rod 84 is thus the Abschließelement 50 in the also in Fig. 5 shown open position moves. When the piston / cylinder member 80 is acted upon in the opposite direction, the closing element 50 is inserted in the in Fig. 4 shown closed position pivoted.

It should be noted that of course provided for in the end of the Abschließelements actuator could be constructed in a similar manner or such or otherwise constructed actuator could alternatively or additionally also be provided at the other longitudinal end of the Abschließelements.

For actuating the locking element 50 or this between the open position and the closed position moving actuators 60, 62 may, for. B. on the transverse frame portion 34 a security reasons, for example, by a lock or the like lockable actuator unit 102 may be provided. This may be manipulated by an operator to initiate the required pivotal movement of the closure member 50. Of course, it is alternatively or additionally possible to provide such an actuating unit in the driver's cab 26, so that actuation of the closing element 50 can also take place from the driver's cab 26.

When positioned in the open position Abschließelement this can also be used as a work appearance 64. For this purpose, for example, at the in the closed position the storage space 38 facing side of the second Abschließelementenabschnitts 56 an increasing the stability of an operator formation 66, such as a ribbed plate or the like may be provided. Like this in Fig. 6 is illustrated, it is thus possible that when positioned in the open position Abschließelement 50 and thus positioned in its working position work 64 an operator 28 on the second Abschließelementenabschnitt 56 standing material invites or removes material from the memory space 38, in Fig. 3 illustrated by a plurality of tool containers positioned in the storage compartment 42. It is also possible for the operator 28 to carry out maintenance work on the compressor roller 16, for example.

In the example shown in the figures, the compressor roller 16 is constructed on its outer circumference with a plurality of interchangeable holder systems 68 with a fixed to a roll shell 70, for example by welding tool holder 72 and one fixed to the tool holder 72 for the compression operation, but basically releasably supported roller tool 74th for example, chisels. Depending on the work application, it may be necessary to use different configurations of roller tools 74, which may require the removal of roller tools 74 from the compactor roller 16 and replacement by others. This process can then comparatively be done easily, if, like that Fig. 6 This illustrates that the operator 18 can stand on the work piece 64, ie the closing element 50 positioned in the open position. For this purpose, it is particularly advantageous if, when the closure element 50 is in the open position, the second closure element section 56 is positioned approximately horizontally, so that the operator 28 can stand stably on it. The stability of the operator 28 can be further increased by the fact that at least one handle 76 is provided on the compressor frame 14, preferably the first transverse frame portion 34. This can for example be approximately continuously extending over the entire extension length of the first transverse frame region 34.

The Fig. 7 shows a further aspect, which can be realized in the context of the structure according to the invention by utilizing the provided on the transverse frame portion 34 handle 76. At this example, two clip-like design and slidably attachable to the handle track markers 98, 100 are provided. These can be moved in the longitudinal direction of the handle 76 and used to provide the operating person sitting in the cab 26 when controlling the soil compactor 10 a sighting device. The lane markers 98 or / and 100 may be positioned on the handle 76 so as to point at a defined line or edge area on the substrate to be compacted when viewed from the driver's cab 26 in the manner of a chimney, so that by repeated sighting the operator is given the opportunity to maintain the correct lane or to check the selected lane via such a lane indicator 98 or 100.

It should finally be noted that, of course, the principles of the present invention may be implemented in other structural configuration. Thus, for example, in association with the two storage space compartments 40, 42 may each be provided separately pivotable or movable Abschließelemente. Also could a plurality of not necessarily immediately adjacent storage spaces may be provided, which can then be completed by this respective separately associated Abschließelemente or a common Abschließelement.

It should also be noted that the principles of the present invention may also find application in a soil compactor, in which also or alternatively at the rear of a compressor roller rotatably supported on a corresponding frame and, for example, for rotation and thus for propulsion of the compressor is driven. A transverse frame region of such a compressor roller comprising a rear carriage can also be used in the sense of the present invention for providing storage space or also for providing a work site.

Claims (15)

1. Soil compactor, comprising at least one compactor roller (16) carried rotatably about an axis of rotation (D) at a compactor frame (14), the compactor frame (14) comprising in the direction of the axis of rotation (D) on both sides of the compactor roller (16) longitudinal frame areas (30, 32) and a first transverse frame area (34) connecting the longitudinal frame areas (30, 32) and extending substantially in the direction of the axis of rotation (D),
   characterized by a working step-ladder (64), which can be moved between a stowing position and a working position, being provided at the first transverse frame area (34).
2. Soil compactor according to claim 1,
   characterized by the working step-ladder (64) in the stowing position closing at least one storage space (38) provided in the first transverse frame area (34).
3. Soil compactor according to claim 1 or 2,
   characterized by at least one storage space (38) being provided in the first transverse frame area (34) which can be closed by a closure element (50) movable between a closing position and an open position.
4. Soil compactor according to claim 3,
   characterized by the closure element (50) providing the working step-ladder (64).
5. Soil compactor according to claim 3 or 4,
   characterized by the closure element (50) comprising a closing flap which can be pivoted between the open position and the closing position.
6. Soil compactor according to claim 5,
   characterized by the closing flap being carried pivotably at the first transverse frame area (34).
7. Soil compactor according to one of claims 3 to 6,
   characterized by the at least one storage space (38) being open to the top through an upper opening area (46) and being open in a direction away from the compactor roller (16) through a lateral opening area (48) and by the closure element (50) comprising a first closure element portion (54) which closes the lateral opening area (48) in the closing position and comprising a second closure element portion (56) which is bent or can be bent in relation to the first closure element portion (54) and closes the upper opening area (46) in the closing position.
8. Soil compactor according to claim 6 and claim 7,
   characterized by the first closure element portion (54) being pivotably connected to the first transverse frame area (34).
9. Soil compactor according to claim 8,
   characterized by the first closure element portion (54) being pivotably connected to the first transverse frame area (34) in an area below the lateral opening area (48).
10. Soil compactor according to one of claims 7 to 9,
    characterized in that when the closure element (50) is positioned in the opening position the second closure element portion (56) is oriented substantially in a horizontal direction.
11. Soil compactor according to one of claims 3 to 10,
    characterized by an actuator (60, 62) which is preferably operated by pressure fluid being associated to the closure element (50) for moving the closure element (50) between the closing position and the opened position.
12. Soil compactor according to one of claims 1 to 11,
    characterized by at least one handle (76) which extends preferably in the direction of the axis of rotation (D) being provided at the first transverse frame area (34).
13. Soil compactor according to claim 12,
    characterized by at least one lane indicator element (98, 100) being carried movably in the longitudinal direction of the handle (76) at the at least one handle (76).
14. Soil compactor according to one of claims 1 to 13,
    characterized by the longitudinal frame areas (30, 32) being connected by a second transverse frame area (36) in such a way that the compactor roller (16) is arranged between the first transverse frame area (34) and the second transverse frame area (36), the second transverse frame area (36) being preferably in a pivotable way connected to a rear part (20) and a drive unit or/and a driver's cab (26) being provided at the rear part (20).
15. Soil compactor according to one of claims 1 to 14,
    characterized by at least one, preferably interchangeable, roller tool (74) being positioned or positionable at the circumferential surface of the compactor roller (16).

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