DE102013001715A1 - Floor abrasive cutting device has front part, which is forwardly arranged in driving direction of floor abrasive cutting device, and rear part, which is rearwardly arranged in driving direction of floor abrasive cutting device - Google Patents

Abstract

The floor abrasive cutting device has a front part (2), which is forwardly arranged in the driving direction of the floor abrasive cutting device, and a rear part (3), which is rearwardly arranged in the driving direction of the floor abrasive cutting device. The front part is provided with a front wheel, and the rear part is provided with a rear wheel. A steering handle (19,20) is provided on the rear part for manual steering of the floor abrasive cutting device by a person.

Description

State of the art

The invention relates to a pedestrian-guided floor-leveling or a floor cutter with a motor drive or without motor drive comprising at least one front wheel and at least one rear wheel. Such floor slicers are used in particular as mobile machines on construction sites to edit surfaces of concrete, asphaltic bitumen and similar mineral building materials material removal or grinding, cutting or milling, for example, to introduce depressions such as joints, grooves or channels in the surface.

The floor-level grinder devices have rotationally drivable tools, such as grinding or separating blades with inserts or segments, which are for example diamond-studded.

So far, pedestrian-guided ground-level grinder devices are comparatively cumbersome to maneuver by a single person, especially in the case of a larger type of construction, or can only be controlled with considerable effort.

Purpose and advantages of the invention

Object of the present invention is to improve the above-mentioned Bodentrennschleifvorrichtungen for a practical use, especially as regards larger types of Bodentrennschleifvorrichtung.

This object is solved by the independent claim 1.

The dependent claims relate to advantageous and expedient developments of the invention.

The invention relates to a bottom-cutting device, in particular with a motor drive comprising at least one front wheel and at least one rear wheel. The invention particularly relates to so-called floor cutters.

The core of the invention is that a front part arranged in front in the direction of travel of the floor-level cutting device is provided with the at least one front wheel and a rear part arranged rearwardly in the direction of travel of the floor-level sanding device with the at least one rear wheel, wherein hinge means are provided between the front part and the rear part, in that the front part and the rear part are bendable relative to one another in a driving plane of the floor-leveling grinder, and at least one steering handle for manual guidance of the floor-level sanding device is provided by a person at the rear part. This improves the guidance or operation of the floor release grinding device. In particular, the floor-leveling grinder can be easily maneuvered or guided by a person without great force and / or steering effort.

The invention is particularly advantageous in larger or comparatively heavy mobile pedestrian-controlled ground-level grinder devices, wherein the person acts directly or directly on the floor-leveling grinder and acts on the floor-level grinder in working and driving mode or controls the mode and direction of movement of the floor-level grinder.

In particular, a required effort to be applied by the person to previous ground-leveling devices is comparatively low. In known ground-breaking devices with a chassis with unchangeable positions in the driving plane axes so far the steering of the Bodentrennschleifvorrichtung, z. B. in non-working or lifted off the surface tool, uncontrolled and cumbersome. For this purpose, so far a so-called "Pobackenlenkung" realized, the operator presses the Bodentrennschleifvorrichtung with the body in a desired direction, preferably with the hip or the buttocks, the change in direction only spontaneously with high effort and / or only with a not sure controllable Offset movement of the entire Bodenentrennschleifvorrichtung takes place. So far, no controllable or adaptable steering is possible, which is now feasible with the invention.

Heretofore, particularly in the case of the larger floor-level grinder, in order to enable the change of direction, the floor-level grinder needs to be raised slightly at the same time as the pressing in the desired direction. There is always the risk of oversteer or tipping over of the entire machine.

Especially with larger known Bodenentrennschleifvorrichtungen, which may have a weight of up to about 400 to 500 kilograms, the leadership is therefore extremely cumbersome or only for strong or experienced people possible. So far, the risk that the person injured, comparatively high. In addition, a precisely predetermined and / or uniform steering movement was previously unthinkable.

In addition, during operation of the ground-cutting device according to the invention a In particular, even fine-scale adjustment of the direction of travel of the ground-leveling device or a small direction correction along a substantially straight line can be accomplished easily, which is possible without significant effort and thus also for weaker operators.

The invention is particularly advantageous if the bottom-plate grinding device is not in working mode and the tool is taken up or its contact with the surface to be machined is lifted in order to manually implement or bring the bottom-ground grinding device to a desired location. In this case, the direction of movement of the floor-level grinder must be changed or adjusted regularly or must be performed right and / or left-hand curves. This is advantageously possible according to the invention or with the hinge means or the at least one steering handle.

The manual steering of the Bodentrennschleifvorrichtung can advantageously be done either with or without motorized drive or with a simultaneous drive effect by the motorized motor drive or non-existent or disabled or ineffective drive via the drive axle or the at least one drive wheel. With non-acting motor drive the drive can be applied alone by the operator, in particular also on the action of the person on the steering handle. The joint means are in particular designed so that a steering or angling between the front part and the rear part in the driving plane is possible both during a forward movement and during a reverse drive of the ground-cutting device. In this way, it is possible to implement shunting movements of the floor-level grinding device advantageously also in a confined space with the floor-level grinding device.

The hinge means allow steering angle of the front or rear part relative to a straight-ahead steering position up to about 40 to 60 degrees on both sides or clockwise and counterclockwise about a provided by the hinge means pivot axis for steering the Bodentrennschleifvorrichtung.

In particular, the at least one steering handle is provided on the rear part, wherein the steering movement takes place by pivoting the rear part relative to the front part, based on a neutral straight-ahead steering position with parallel to the straight direction or aligned body axes of the front part and the rear part.

With the hinge means, a steering of the ground-cutting device or the joint cutter is achieved in that the entire machine receives a pivot axis, in particular an axis through which the at least one front wheel and the at least one rear wheel or the front part and the rear part to each other in the driving plane can be pivoted or angularly aligned. The pivot axis is in particular perpendicular to the surface to be machined or to a bottom surface on which the Bodentrennschleifvorrichtung with the at least one front and the at least one rear wheel in Nutzbetrieb set up and is mobile.

According to the invention, it is advantageously possible that when a change in direction of the floor-level grinder this no longer needs to be raised, not even for a short time. The steering takes place via a bending of a driving axle or a part of the ground-cutting device, wherein the part has a rear axle or a front axle, with a corresponding steering action between the front and the rear wheel.

A steering movement in the working mode of the ground-cutting device is only possible to a very small extent and rather of secondary importance, since in any case only a minimal steering effect is possible by milling into the material to be machined tool. In addition, a resistance of the rear and front part is possible due to the simultaneous active motor feed of the floor-leveling device during operation. Because a steering movement over the joint means is more or less blocked.

For a steering movement, in particular when the tool is not working, a significantly higher force is required when acting through the acting drive torque on the at least one drive wheel or on the drive wheels compared to a state when the drive wheels are not driven by a motor.

Because the steering movement of the drive axle is at least severely hampered or almost blocked on the drive. When acting traction, for example, with two drive wheels on a common axis, a left and right drive not readily movable in different directions or a drive to the front and at the same time a drive wheel moved backwards, which for the steering movement or cornering with a Drive wheels connecting rigid axle is forcibly the case.

With two driven wheels, it is accordingly difficult or possibly only with a high Sliding friction or a sliding or wheel locking possible to move a wheel to the rear, when the motor drive determines the direction of rotation of the wheel forward.

According to the invention, however, it is still possible with the hinge means advantageously still possible to make a low steering angle even in a traction drive.

In particular, the steering angle is also possible in such a way that an alignment of the ground-leveling grinding device during cutting takes place along a predetermined straight line, in particular in order to make comparatively small changes of direction via the steering handle, in order to allow an ideal straight direction of travel.

Under the at least one steering handle are differently configured operating means for manual operation of the steering to understand. In particular, this allows a manual action for steering the Bodenentrennschleifvorrichtung with one hand or with both hands of the operator. The steering system according to the invention has nothing to do with a steering by a remote control, for example, with a steering motor, which would affect completely different or not mitgängergeführt devices, the actual steering power is motorized. This would be disadvantageous because associated with additional effort, prone to failure and expensive.

The arrangement according to the invention with the hinge means and the steering handle allows manual steering by direct action of the person on the Bodentrennschleifvorrichtung via the steering handle.

Furthermore, it is advantageous that the hinge means comprise an articulated joint for articulated steering of the floor-leveling device. This comparatively large steering angles for a steering movement are possible. In addition, an articulated joint is compact and relatively robust, which is advantageous for use of the ground-leveling grinder on construction sites. Furthermore, an articulated joint with few parts can be realized, which facilitates the assembly, disassembly or accessibility of the joint for repairs.

In particular, the hinge means exclusively comprise an articulated joint. This is a little complex and not susceptible to interference steering the Bodenentrennschleifvorrichtung possible.

It is also advantageous that operating means acting on the steering axle are provided for manual guidance of the ground-separating grinding device. The control means in particular the steering handle is associated. By means of the operating means, a person can apply, in particular with at least one hand, a force and / or moment to the ground-cutting device or the steering axle in order to effect a steering. In particular, the operating means act on the rear part, which has the steering axle or the at least one drive wheel or one or more drive axles of the motor drive. The drive axle of the front part can not in particular be configured so that it can not be angled relative to the rear part in the driving plane of the floor-leveling grinder or without hinge means. Advantageously, the entire tail section is pivoted about the pivot axis of the articulated joint for an Abwinkelbewegung between the front and rear part, being acted upon the front part with the operating means. As a result, then a corresponding steering effect is achieved on the front part.

The operating means such as the steering handle are preferably ergonomic.

It is also advantageous that the joint means are designed so that the ground-leveling device can be steered by a person when the motorized traction drive of the bottom-separating grinding device is not active. In particular, the function of the joint means is decoupled from the drive and vice versa. The function of the joint means such. B. the articulated joint is in particular mechanically separated from the function of the motor drive, in particular by a separate joint means arrangement. There is no inhibition of the steering function or the joint means instead, if the motor drive is turned off or does not work.

An advantageous modification of the subject invention is characterized in that the hinge means are designed such that when the motorized drive of the floor slicing device is active, the floor slicing device can be steered by a person. The steering of the Bodenentrennschleifvorrichtung is thus possible in a motorized operating state. It may however be that a certain inhibition of the steering takes place when the traction drive is active, as explained above. A functional failure of the manual steering does not take place, so that the manual steering is still possible.

Furthermore, a drive unit for a driven rotatable tool for material-removing machining of a surface is advantageously present. In particular, the tool is used for separating, grinding and / or milling surfaces. The tool drive unit may be an internal combustion engine such. B. be a diesel or gasoline engine or an electric motor, possibly also a combination of these aggregates. Advantageously, the rotating tool and the tool Drive unit on the front part available. For example, the drive unit can be positioned accessible from above, optionally protected with a removable cover, and the rotatable tool laterally or centrally on the front part. In particular, the tool rotates about an axis of rotation offset parallel to the driving plane and about an axis transversely to the direction of travel.

A further advantageous variant of the invention is characterized in that the hinge means between the at least one front wheel and the at least one rear wheel are present. The hinge means are in particular present between the front axle and the rear axle or between the front and rear part. The bending between the front part and the rear part is thus advantageously possible.

Advantageously, a plurality of front wheels and / or a plurality of rear wheels are provided, in particular, two or more front wheels and / or two or more rear wheels on the respective axis spaced from each other in the axial direction available.

Advantageously, the hinge means are designed such that a mechanical connection between the front part and the rear part is realized via the hinge means. This allows a particularly structurally compact arrangement. For example, this can be a rod coupling with a z. B. cylindrical connecting pin can be realized, which is connected to respective receptacles on the front and rear part, wherein the connecting pin forms the hinge axis of the hinge means.

According to an advantageous variant of the invention, the floor release grinding device is designed in such a way that a travel movement of the floor release grinding device takes place solely by means of a manual feed, without a motor drive for the floor release grinding device being present. For this particular weight aspects have to be considered. In particular, the Bodenentrennschleifvorrichtung should be designed so that an average strong person alone without much effort the Bodenentrennschleifvorrichtung can push in front of him by the person z. B. attacks with both hands on the at least one steering handle and mitlaufend the Bodentrennschleifvorrichtung sliding pushed forward or in reverse. In particular, this arrangement has a lower weight or in particular is not several hundred kilograms, but about 100 kilograms and less in comparison with Bodentrennschleifvorrichtung with motor drive, the motor drive means a significant increase in weight. The Bodenentrennschleifvorrichtung is also easier or cheaper to manufacture and in operation. In the training without motor feed the Bodentrennschleifvorrichtung the steering can advantageously be hampered by inhibiting means such that the steering can be inhibited and / or blocked. Thus, it is possible, for example, to achieve an inhibition or blockage of the steering, as is possible in Bodenentrennschleifvorrichtungen with a motor feed, in which the motor feed causes or provides the inhibiting or blocking effect.

A further advantageous variant of the invention provides that in each case a separate drive arrangement is provided for the motorized drive and for the driven rotatable tool. In this way, the drive of the respective units can be implemented flexibly and, if appropriate, separated in time or individually. In addition, the respective drive can be tailored to the particular type of drive required. This is advantageous because, for example, power and / or rotational speed ranges of the traction drive and the tool drive are generally significantly different from each other.

Advantageously, the tool drive can be done with a hydrostatic drive unit. In particular, the hydrostatic drive for the tool is decoupled from a motor drive, such as a hydrostatic drive. For an advantageous operation management is possible.

With a common drive for the traction drive and the tool, if applicable, relevant standards for the operation of ground grinder can hardly be fulfilled in practice. Because it is not permissible to implement the Bodentrennschleifvorrichtung with rotating blade, which is the case regularly in a common drive for the travel movement and the tool, especially since usually a drive for easier moving the Bodenentrennschleifvorrichtung is turned on.

If, for example, the driving movement of the bottom-separating grinding device and the movement of the tool, such as, for example, the rotation of a separating blade, take place hydrostatically via a common hydraulic drive, the prerequisite required by the standard is generally not met.

According to an advantageous embodiment of the invention, an electric motor for the motorized drive is provided. With an electric motor or other electrically operating drive can be advantageous when operating the Bodenentrennschleifvorrichtung briefly provide necessary amounts of energy, for example, in a start phase of the Bodentrennschleifvorrichtung especially for starting the drive unit of the tool, eg. B. if this includes an internal combustion engine. In particular, an energy storage, for example a battery or a battery for storing electrical energy for the electric motor available. The floor-leveling device is thus advantageously mobile on construction sites or without line connection to an external electrical energy source operable.

An advantageous alternative is characterized in that a motor feed with a hydrostatic or a hydrostatic drive unit is provided.

It is also advantageous that the hinge means have a steering axis on which a bearing portion of the front part and / or a bearing portion of the rear part is received. In particular, for a compact and robust arrangement, a vertical plane oriented to the driving vertical steering axle or handlebar with two spaced apart axle sections is present, wherein at each axle portion, the front part and / or the rear part is optionally articulated.

figure description

Further advantages and features of the invention are explained in more detail with reference to a partially schematically illustrated in the figures embodiment of the invention.

In detail shows:

1 a perspective view of a Bodentrennschleifvorrichtung invention,

2 an enlarged detail according to the bordered area A in 1 .

3 an enlarged detail according to the bordered area B in FIG 1 .

4 a bottom view of the Bodenentrennschleifvorrichtung 1 .

5 a sectional view taken along the line CC 4 .

6 an enlarged detail according to the bordered area D in 5 .

7 a plan view of the Bodenentrennschleifvorrichtung 1 .

8th a sectional view taken along the line EE 7 and

9 an enlarged detail according to the framed area F in 8th ,

In the figures, one is a floor cutter 1 formed inventive Bodentrennschleifvorrichtung shown.

The joint cutter 1 is especially designed as a mobile machine for use on construction sites. The joint cutter 1 is this mitgängerführbar, with a low walking speed in the direction of movement of the joint cutter 1 accompanying operator over the entire service life of the joint cutter 1 attacks directly on this, especially with both hands on steering handles 19 and 20 , The direct manual action of the person on the joint cutter 1 takes place during the cutting operation of the joint cutter 1 and even when not active Trennschleifbetrieb then instead, if, for example, the joint cutter 1 is ranked to the joint cutter 1 over a final section, about which the joint cutter 1 not with z. B. a transport vehicle for the joint cutter 1 is transportable to move from the transport vehicle to the site on the construction site or move away from this again.

The joint cutter 1 has a front part 2 and one with the front part 2 articulated rear part via hinge means 3 on, each of which is rolling on a floor surface movable. The front part 2 forms a unit with a main engine 22 and one as a cut-off wheel 26 formed rotatable tool for material-removing machining a surface of the bottom surface 10 , It represents the one of a cover 2a with louvres 2 B enclosed main motor 22 the rotational drive of the rotatable about the rotation axis R cut-off wheel 26 ready.

The front part 2 has a chassis, which is a connection part 30 , two to the longitudinal direction of the joint cutter 1 parallel struts 28 . 29 and a front axle 8th includes. At the front axle 8th are two front wheels 4 and 5 added.

The tail section 3 serves as a feed unit of the joint cutter 1 and comprises a drive unit or a traction drive with an electric motor 21 , which has a sprocket for the rotary drive of a rotatable drive axle 9 of the tail section 3 by means of a drive chain circulating in the drive drive state 27 is trained. At the drive axle 9 are rotationally fixed two provided with a tread, for example made of rubber drive wheels 6 and 7 attached, via which the drive torque on the floor surface 10 is applied.

At the top of the box-shaped tail section 3 are switching means for a manual action on the traction drive or the electric motor 21 by the operator. In the embodiment shown, the switching means comprise one to one Axle pivoting shifter 31 for setting a desired switching position. In the 1 and 2 is the according to double arrow P1 back and forth adjustable shift lever 31 in a second switching position via a central recess 32 in a slot 3a a panel 3b secured, with over narrow sides of the recess 32 the shifter 31 is locked against leaving the second switching position. There are also two more recesses 33 and 34 above and below the recess 32 available. By a manual slight lateral displacement of the shift lever 31 transverse to the adjustment direction P1, the shift lever 31 from the respective recess 32 - 34 be released and placed in the direction of P1 in another switching position, where the shift lever 31 is locked accordingly in the corresponding recess. The other recesses 33 and 34 allow securing the gear lever 31 in a first and a third switching position, wherein in the three switching positions each different switching states of the traction drive are set up. In the first shift position with the shift lever 31 in the recess 34 becomes an electric feed by means of the electric motor 21 set, in the second position with the shift lever 31 in the recess 32 According to the figures, a manual feed is selected or sets the electric motor 21 no motor drive ready. In the third shift position with the shift lever 31 in the recess 33 a mechanical brake is activated or adjusted, with which a driving movement of the joint cutter 1 is prevented by a possibility of rotation of the drive axle 9 is blocked. This is done via the shift lever 31 in the switching position 3 a brake plate 35 adjusted accordingly or activated.

The front part 2 and the tail section 3 are about joint means 11 hinged together to provide steering of the joint cutter 1 over an angling of the tail section 3 and front part 2 to each other in a driving plane of the joint cutter 1 to enable. The joint means 11 of the joint cutter 1 advantageously comprise an articulation 12 for articulation of the joint cutter 1 , The articulation 12 includes based on the horizontal floor area 10 a vertical hinge axis G, which of a cylindrical handlebar 13 provided.

At the handlebar 13 engage at both end portions of each sections of the front part 2 and the tail section 3 at. Accordingly, the tailgate engages 3 via storage arrangements 14 and 15 , for example bearings, on the handlebar 13 at.

At the handlebar 13 access to the front part 2 also opposite fixed to the front part 2 towards the tail section 2 protruding sections, the top by a locking plate 16 and down through a flange portion 17 of the connection part 30 are formed. The disc cut-like locking plate 16 has a curved slot-shaped backdrop 16a on, which is formed along a circular path about the hinge axis G over about an angular range of about 90 degrees. The scenery 16a is from a clamping screw 36 or penetrated by the threaded shaft. In addition, the clamping screw passes through 36 a hole on one side of the locking plate 16 adjacent paragraph above 38a on a vertical sheet metal section 38 at the connection part 30 , This can be done by firmly turning a cap nut 37 on the threaded shaft a predetermined or respectively current steering position between the rear part 3 and the front part 2 lock. It comes to a clamping effect with a top on the backdrop 16a laterally protruding screw head of the clamping screw 36 including a washer and screwed on the threaded shank on the underside of the paragraph 38a pressing hat mother 37 , When loosened or loosely turned cap nut 37 finds no clamping action and the tail section 3 and the front part 2 can be set according to the scenery 16a angle about 90 degrees to each other in the driving plane about the hinge axis G.

A hand steering 18 includes the two steering handles 19 . 20 , which has an ergonomic handpiece (not shown) for engaging with the right or left hand of the operator at the free end. The steering handles 19 . 20 are designed as a U-shaped bent twice at right angles rod, the two steering handles 19 . 20 in the rolling direction of the two drive wheels 6 . 7 are aligned.

In the joint cutter according to the invention 1 is the travel drive for the motor drive or the feed of the joint cutter 1 over the drive wheels 6 . 7 separately or separately from the motor drive for the cut-off wheel 26 ,

To start the main engine 22 includes the electric motor 21 if necessary, a starter. The main engine 22 is optionally designed as a diesel engine, gasoline engine or electric motor.

The main engine 22 drives a drive shaft via, for example, a V-belt arrangement 25 at which the cut-off wheel 26 is mounted. The upper part of the cut-off wheel 26 is for a safe working operation of the joint cutter 1 from a downwardly open grinding wheel cover 39 surround.

The motor feed of the joint cutter 1 with the electric motor 21 takes place in working mode in the direction of travel or working direction P2. For maneuvering the joint cutter 1 with raised non-rotating cutting wheel 26 What is not shown can be done by switching the electric motor 21 the motor drive also act in the opposite direction to P2.

As 6 shows is the drive axle 9 divided in the middle or divisible and comprises two miteinender rotatably connected sub-axes 9a and 9b , where at each partial axis 9a . 9b a sprocket 23 respectively. 24 is firmly attached, which about the attacking drive chain 27 be driven and thus the drive axle 9 set in rotation.

LIST OF REFERENCE NUMBERS

1

Fugenschneider

2

front part

2a

cover

2 B

Louvre

3

tail section

3a

slot

3b

cover

4

front

5

front

6

drive wheel

7

drive wheel

8th

Front

9

drive axle

9a

part axis

9b

part axis

10

floor area

11

joint center

12

articulated

13

handlebars

14

bearing arrangement

15

bearing arrangement

16

locking plate

16a

scenery

17

flange

18

hand steering

19

steering handle

20

steering handle

21

electric motor

22

main engine

23

Sprocket

24

Sprocket

25

drive shaft

26

Cutting wheel

27

drive chain

28

pursuit

29

pursuit

30

connector

31

gear lever

32

recess

33

recess

34

recess

35

brake plate

36

clamping screw

37

Hutmutter

38

sheet metal section

38a

paragraph

39

Wheel guard

Claims (13)

Bodentrennschleifvorrichtung in particular with a motorized drive comprising at least one front wheel ( 4 . 5 ) and at least one rear wheel ( 6 . 7 ), characterized in that a forwardly arranged in the direction of travel of the Bodentrennschleifvorrichtung front part ( 2 ) with the at least one front wheel ( 4 . 5 ) and in the direction of travel of the Bodentrennschleifvorrichtung rearwardly arranged rear part ( 3 ) with the at least one rear wheel ( 6 . 7 ) is present, whereby between the front part ( 2 ) and the rear part ( 3 ) Jointing agent ( 11 ) are provided such that the front part ( 2 ) and the tail section ( 3 ) are bendable to each other in a driving plane of the ground-cutting device, and wherein at the rear part ( 3 ) at least one steering handle ( 19 . 20 ) is provided for a manual steering of the Bodenentrennschleifvorrichtung by a person. Bodentrennschleifvorrichtung according to claim 1, characterized in that the hinge means ( 11 ) an articulated joint ( 12 ) for an articulation of the bottom separation grinding device. Bodentrennschleifvorrichtung according to claim 1 or 2, characterized in that acting on a steering axis operating means are provided for manual steering of the Bodentrennschleifvorrichtung. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the hinge means ( 11 ) are formed, that when not acting motor drive the Bodenentrennschleifvorrichtung the Bodentrennschleifvorrichtung is steered by a person. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the hinge means ( 11 ) are formed, that when acting motor drive the Bodenentrennschleifvorrichtung the Bodentrennschleifvorrichtung is steered by a person. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that a drive unit ( 22 ) for a driven rotatable tool ( 26 ) is present for the material-removing processing of a surface. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the hinge means ( 11 ) between the at least one front wheel ( 4 . 5 ) and the at least one rear wheel ( 6 . 7 ) is available. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the hinge means ( 11 ) are formed such that via the hinge means ( 11 ) a mechanical connection between the front part ( 2 ) and the rear part ( 3 ) is realized. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the Bodentrennschleifvorrichtung is designed such that a driving movement of the Bodentrennschleifvorrichtung solely by a manual feed without a motorized drive for the Bodenentrennschleifvorrichtung is present. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that for the motorized drive and for the driven rotatable tool ( 26 ) each have a separate drive assembly is present. Floor slicer according to one of the preceding claims, characterized in that an electric motor ( 21 ) is provided for the motorized drive. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the drive unit for the driven rotatable tool ( 26 ) an internal combustion engine ( 22 ) and / or comprises an electric motor. Bodentrennschleifvorrichtung according to any one of the preceding claims, characterized in that the hinge means ( 11 ) have a steering axis, on which a bearing section ( 16 . 17 ) of the font part ( 2 ) and / or a storage section ( 14 . 15 ) of the rear part ( 3 ) is recorded.

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