WO2005011456A2

WO2005011456A2 - Drive system for devices used in yards, courtyards, and houses

Info

Publication number: WO2005011456A2
Application number: PCT/EP2004/008686
Authority: WO
Inventors: Alfred EGGENMÜLLER
Original assignee: Eggenmueller Alfred
Priority date: 2003-08-03
Filing date: 2004-08-03
Publication date: 2005-02-10
Also published as: WO2005011456A3

Abstract

The invention relates to a drive system for devices used in yards, courtyards, and houses, such as mowers, scarifiers, sweepers, leaf collectors, lawn aerators, and similar. The inventive drive system comprises a horizontal work spindle (1), a tool that is arranged on the jacket of said work spindle (1), and an electric motor (6) which is optionally powered by a battery and drives the main arbor (1) via a reducing transmission. Said drive system is characterized in that the electric motor (6), and preferably a reducing transmission (7) and/or an overload clutch and/or the battery (8), is/are disposed in the core of the main arbor (1).

Description

Description:

DRIVE SYSTEM FOR GARDEN, COURTYARD AND HOME APPLIANCES

The invention relates to a drive system for garden, yard and household appliances, such as mowers, scarifiers, sweepers, leaf collectors, lawn aerators and the like, according to the preamble of claim 1.

The tools of such garden, yard and household devices (hereinafter referred to as "devices") are attached to a roller-like work spindle, which is usually horizontal and essentially transverse to the direction of travel. They are driven by combustion or electric motors via chains, V-belts, angular or worm gears. If an electric motor is provided as the drive, it usually lies above or behind the work spindle and drives the work spindle directly or via a gear. With the side drive, the working width of the work spindle is therefore smaller than the device width, with a central drive, the uniformity of the arrangement of the tools on the work spindle is disturbed. The electric motor, which is usually located at the top, is a hindrance when walking under bushes and bushes.

The object of the present invention is to provide a drive system which eliminates these disadvantages, which is as small and compact as possible and which can advantageously be accommodated without obstructing the functional spaces.

This object is achieved by a drive system according to claim 1. Advantageous developments of the invention are the subject of the dependent claims.

In the solution according to the invention, according to a first embodiment, the advantage is exploited that the work spindles mostly have tools built on a central tube and the interior of the work spindle has a free space. This results in the possibility of accommodating the drive there.

On the one hand, the drive can be an AC motor, the output of which is connected directly to the work spindle. In most cases, however, it will be necessary to lower an appropriately high speed of the electric motor to the lower one of the work spindle by means of an intermediate gear. In certain or tough operating conditions, it is advantageous to provide mechanical or electrical overload protection. With the increasing use of DC motors with battery supply, a correspondingly designed battery can also be accommodated in the core of the work spindle. It is expedient to accommodate all of these drive units in a type of tubular sleeve, which at the same time forms the supporting frame and the boundary against the central tube of the work spindle and acts as a protective tube. The drive units are expediently constructed in such a way that the output and the connection to the work spindle take place on one side of the tubular sleeve, and on the other side there is a fixation on the device frame for receiving the counter-torque and for storage. The work spindle is in turn mounted on the drive side directly on the frame and on the other side on the fixation, which in turn is attached to the frame. Since the work spindle can be stored within its central tube and the drive is located in the central tube, no space is wasted with regard to the width of the device for the arrangement of the tools on the work spindle. The cables for the energy supply to the electric motor directly or for charging the battery as well as the switching cable can be installed via the fixation fixed to the frame.

From a work spindle, further units and, if necessary, further work spindles can be driven, just as individual ones can be provided with their own drives.

To increase the energy capacity, the connection and the attachment of a further battery located outside the tubular sleeve can be provided.

According to an advantageous embodiment of the invention, the drive according to the invention is used in a broom. The work spindle is equipped with sweeping strips and is mounted on the side of the frame in thin shields. This results in optimal use of the sweeping width when arranged as a front broom. If additional support wheels are then arranged behind the broom within the width of the device, there are only slight edges when sweeping. Because of the transition from the broom to the collecting container for the sweepings, transition surfaces are preferably provided on both sides.

As a rule, four support wheels are arranged. If only two support wheels are provided behind the broom, it is advisable to arrange skids on the shields, which are height-adjustable if necessary. The working depth of the sweeping broom in connection with the guide linkage on which the operator guides the device can thus be checked and adapted to the requirements.

The guide linkage consisting of two spars extending backwards and upwards is brought together at the rear upper end and provided with a handle. The triangular design achieved thereby improves handling when driving the sweeper through greater mobility of the operator. The aforementioned first embodiment mainly relates to devices with preferably wide work spindles, which are generally arranged on both sides of the device frame or the guide rails. The tubular sleeve provided for receiving the drive can be held relatively easily. Also, due to the double storage due to its necessary dismantling, less interchangeability of different work spindles is thought of.

The aim of the second embodiment described below is to design the arrangement and design of the drive system in such a way that the drive system is simplified by one-sided mounting and an easier exchange of different work spindles is possible.

This is achieved in that the tubular sleeve is designed as a stable support tube with a connecting flange and is screwed to a frame side or to a guide bar on one side. The work spindle is mounted on the inside directly on the support tube. On its outside, the work spindle is torsionally rigid on the output pin of the drive in the support tube for taking over the torque. If the axial securing device is designed as a quick-release fastener, the work spindle can be easily replaced. If the work spindles are relatively short, the space for a battery may no longer be sufficient, or an AC motor must be used due to the higher drive power. Therefore, only the electric motor, usually a reduction gear and, if necessary, an overload protection device are accommodated in the support tube. In order to keep the line losses low, the battery should be placed directly on the frame or in the guide rail. A further reduction in line losses in battery operation, both in the version with a support tube and without a support tube, is achieved by the arrangement of the motor switch in the support tube or the tube sleeve. The actuation then takes place via linkage or cable pull.

If an external bearing is arranged on the output pin, a frame part or a support device such as a support wheel or a runner can be attached there.

A special advantageous embodiment of the invention is the design of the work spindle as a milling drum. In the case of tillers, on the one hand the working widths are smaller, and on the other hand the interchangeability of different tools for adapting to the soil conditions and work task is desirable. The milling drum is designed as a stable tube with welded-on knife flanges, to which individual milling knives are interchangeably attached as protractors for intensive or as saber knives for rough tillage. Guides on the knife handle provide the necessary hold. For simple solutions there are disc-shaped knife rings, which can be fixed on the spindle tube or exchangeable. The aforementioned first embodiment relates to devices with preferably wide work spindles. It is not intended to replace different work spindles with different tool sets. In contrast, the third embodiment described below relates to solutions for narrow work spindles and the possible exchange.

A first task of this third embodiment is to create an exchange solution even for wide work spindles. It should be assumed not to change the work spindle, but to use the expensive drive multiple times. Another task is to increase the work performance of the devices through accumulation, that is, operation of several tools with a single drive.

The first object is achieved in that the tube sleeve has a flange on a fixed side and a coupling on an output side and is fastened to a frame which has a corresponding opening for the tube sleeve and fastenings for the flange. Therefore, the drive elements arranged in the tubular sleeve can be removed together with the tubular sleeve. This is done on the fixed side through the opening in the frame and a flange on the tube sleeve, which can also be designed as a quick release.

A releasable coupling is expediently arranged on the output side. It is also expedient to leave the bearing of the working spindle on the tubular sleeve and to connect the working spindle with a positive fit via an intermediate washer.

The second object of the invention is achieved by arranging a plurality of drive units on individual work spindles. In the case of a flying arrangement, this can be done on both sides of the central strut as in the second embodiment, so that each side has an electric motor and a reduction gear. The performance is doubled by the use of small aggregates with a small diameter, the space requirement is small and it is also possible to use smaller working spindles in diameter. With a flying arrangement on the central spar, the interchangeability of the work spindles is given and, due to the lower weight, easier to carry out. With two-sided output, the drive units can be accommodated in a common tube and attached to the frame. A particularly advantageous use of such a double drive results for the drive of a single running axle, namely for a single wheel drive. The impellers are arranged on hubs which are connected to the drives of the individual units. The steering takes place by changing the speed of the individual motors.

In the first embodiment, the drive is accommodated in the core of the a flat and simple design of the overall device. The task of the fourth embodiment described below is to provide solutions for the design of cylinder mowers and devices with similar tasks such as scarifiers, lawn aerators or flail mowers, which also bring advantages in the arrangement of support wheels and collecting containers and in the overall concept. Above all, a narrow and flat design of the device is aimed for.

According to the fourth embodiment, this object is achieved in that the work spindle is designed as a knife spindle for a cylinder mower and has an outer frame which is formed from thin frame disks in the area of the knife spindle and does not protrude beyond the width of the knife spindle. Due to the design of the frame in the area of the knife spindle by means of thin frame disks, between which the knife spindle and the drive are mounted, a narrow construction is achieved.

When the support wheels are arranged at the level of the knife spindle and a shear bar, the support wheels are arranged directly outside the frame washers, so that only the thin frame washer is located between the knife spindle and support wheel. The support roller which is then expediently necessary is arranged behind the shear bar between the frame disks. Due to the outside support wheels, the width of the collecting container can be carried out at a distance from the frame panes.

A particularly advantageous solution with regard to the device width is provided by arranging the support wheels inside the continuous or outside a recessed frame pane. To bridge the then necessary retraction of the collecting container, appropriately arranged inclined transition surfaces are just as advantageous as a support roller in front of the knife spindle.

A drive of the support wheels, which is advantageous in the case of larger devices, can be achieved by means of gears with clutch and freewheel interposed on both sides. It is particularly useful for support wheels located outside or inside the frame.

According to the above-mentioned embodiments, it is possible for outputs for further units to be connected directly to the work spindle or via a coupling. The aim of the fifth embodiment described below is to further improve the position and the course of these drives and the design of the drive clutch under different circumstances. In addition, in a special case, a pressing and packaging device should be proposed in connection with the side drive. The problem is solved in that further, separately stored tools can be driven directly or via a clutch and the drive is carried out from the core of the work spindle via a laterally arranged chain drive or via gear wheels.

If several tools with horizontally positioned drive shafts are arranged next to and / or one behind the other, a laterally mounted drive via chains or gearwheels is expedient and requires little and little disruptive space. In the case of a gear drive, a gear is interposed to maintain the same direction of rotation. The desired speed difference is set by appropriate design of the input and output wheels. The drive can lie within each of the arranged tools. The feasibility of this depends on the possibility of having enough space inside without having to disadvantageously increase the diameter of the tools and thus the power requirement.

A very advantageous solution results for a device for compacting and packing lawn cuttings and leaves, in which front and rear tools are provided, the front tools being formed by a mowing or receiving device and the subsequent rear tools being formed by a pressing or further transport device , The drive, which drives the other tool via a side drive, is housed in one of the two aforementioned devices.

The front tools can be exchanged with each other by a quick change. For this purpose, the drive must take place via a coupling on the side drive, which is activated when plugged on.

If the tools are exchanged via a core drive that is connected to the outside, the side drive is connected via the tool.

The arrangement of the core drive is expediently carried out within the tool, which is not replaced, provided that it has the necessary space in the core.

When replacing the tools, in addition to replacing the work spindle, it may also be necessary to replace the leading edge. In the case of a cutting spindle, the leading edge must be a stable shear bar, while the leading edge on a broom is soft and flexible. Further advantages, features and special features of the invention result from the following description of preferred, but not restrictive, embodiments of the invention on the basis of the schematic and not to scale drawings. Show it:

Fig. 1 in a first embodiment, the section through a work spindle with drive and

Battery at its core,

2 shows a cross section through the work spindle according to FIG. 1,

3 is a side view of a simple sweeper,

4 shows the top view of the sweeper according to FIG. 3,

Fig. 5 in a second embodiment, a work spindle as a milling drum in one side

Execution on the guide rail,

6 shows the arrangement according to FIG. 5 in side view,

7 in a third embodiment, a work spindle with the drive sleeve removed,

8 the removed drive sleeve of FIG. 7,

9 shows the arrangement of two drive units on a central spar,

10 shows the arrangement of two drive units on a central tube with wheel drives,

11 in a fourth embodiment, the side view of a cylinder mower with internal support wheels,

12 is a partial plan view of the reel mower according to FIG. 11 with a continuous frame disc,

FIG. 13 is a partial top view of the reel mower according to FIG. 11 with the cranked inwards

Frame plate,

Fig. 14 in a fifth embodiment, the combination of a broom and a press in a longitudinal section, and

15 shows the arrangement according to FIG. 14 in a top view of a horizontal cross section.

According to FIG. 1, in a first embodiment, a work spindle 1 with several sweeping strips 2, which form a broom 22, is arranged between side plates 3. The work spindle 1 comprises a central tube 4, in which a tube sleeve 5 with an electric motor 6, a reduction gear 7 with overload protection and a battery 8 with cells 9 are arranged. On the left side of the illustration, the reduction gear 7 is mounted on a bearing plate 10 with a bearing 11 of the work spindle 1 and is connected in a torsionally rigid manner, the work spindle 1 being mounted on a flange pin 12 and fastened to the bearing plate 10. On the right-hand side in the illustration, the tubular sleeve 5 is mounted with a bearing plate 13 on a flange pin 14 and is connected in a torsionally rigid manner to absorb the counter torque. The work spindle 1 is supported by a bearing plate 15 on the flange pin 14.

The battery 8 is held together by anchor screws 16 between bearing plates 17 and is and a sleeve 19 to a guide rod 35 (see. Fig. 3 and 4) passed. Skids 20 on the side plates 3 serve to guide the height and depth of the broom 22.

According to FIG. 2, the sweeping broom 22 with its sweeping strips 2 and the central tube 4, in which the tube sleeve 5 with the drive unit and the battery 8 is accommodated, is located in a sweeping housing 21. A catch rail 26 guides the debris into the connected container 32 (see FIGS. 3 and 4). The catching rail 26 can be coated with a covering 27, which consists of low-friction material, or can be formed entirely from such low-friction material.

On the outside of the work spindle 1 (more precisely here on the jacket of the tubular sleeve 5), approximately radially projecting fins 60 are attached in order to better dissipate the heat generated by the electric motor 6. For the sake of clarity, only three of these slats 60 are shown, of which a plurality is expediently arranged distributed over the entire circumference. These slats 60 are preferably also provided in the subsequent embodiments, although they are not described separately in each case.

According to FIG. 3, the broom 22 is accommodated in the sweeping housing 21 and throws the sweepings into the container 32 via essentially vertically aligned guide surfaces 30 and the catch rail 26. The working depth of the sweeping broom 22 is regulated by means of support wheels 33 and skids 20 via the guide linkage 35 and a handle 36. A switch 37 is also integrated there. An additional battery 38 is attached to the guide linkage 35.

4, the broom 22 with its sweeping strips 2 is also accommodated in the sweeping housing 21 and throws the sweepings over the guide surfaces 30 and the catch rail 26 into the container 32. The support wheels 33 are arranged within the device width on the end shields 10. The guide linkage 35 consists of bars 48 and the handle 36 with the switch 37. The arrangement of the drive comprising the electric motor, reduction gear and battery in a tubular sleeve allows a tidy and space-saving drive system to be built up. Housed in the central tube of the work spindle, it does not hinder the function of multiple units and allows advantageous design options for the devices.

5, in a second embodiment, a tube sleeve designed as a support tube 101 is screwed with its flange 102 to a guide bar 103. The support tube 101 contains the motor 6, the reduction gear 7 and an output pin 106, which is additionally supported in a bearing 107 in the support sleeve 101. A milling drum 108 with its protractor 109 is inside a bearing 110 on the support sleeve 101 and outside with a flange 111 on the educated. The energy supply takes place via a line 113 through the flange 102 from the guide bar 103. In battery operation, the guide bar 103 is designed as a hollow chamber 114 and contains the battery 8.

According to FIG. 6, the milling drum 108 is attached with its flange 102 to the guide bar 103 by the quick-release fastener 118 on the support tube 101. Milling knives 121 are attached to flanges 111 in groups of four. The individual flanges 111 are rotated relative to one another in order to evenly distribute the milling cutters 121 over the circumference.

According to FIG. 7, in a third embodiment, the work spindle 1 and a broom 22 with the sweeping strips 2 are mounted on a frame 204 on a pin 204 with a bearing plate 10 on the left side in the illustration. On the right side in the illustration, the work spindle 1 is held centrally by a labyrinth seal 206 on the frame 205. An opening 207 in the frame 205 permits the introduction of the drive sleeve 208 shown in FIG. 8.

8, the drive sleeve 208 is composed of the electric motor 6, the reduction gear 7 and the battery 8. The left connection is made via the coupling 212 on the end shield 10 (see FIG. 7), the right connection is made via a flange 213 on frame 205 (Fig. 7). The right-hand support of the work spindle 1 (FIG. 7) is form-fitting on an intermediate plate 214.

9, the device is divided into two parts in the width direction. The work spindle 1 is divided into the work spindles 215 and 216, each of which is equipped with a milling cutter group 217, is mounted on support sleeves 218 and 219, and is arranged on both sides of a central spar 220.

10, two drive units 221 and 222 are mounted in the central tube 4. A solid rubber wheel 225 is attached to a wheel hub 224, and an air wheel 227 is attached to a hub 226. A turntable 228 is connected to the central tube 4 via a battery bearing 229.

For the multiple use of the drive units such as the electric motor, reduction gear and overload protection, solutions are thus proposed to quickly remove these drive units and install them in other devices. This results in an increase in performance when using multiple drive units in one device. Through the smaller ^D imensions the space given can be utilized optimally easier. This third embodiment is particularly advantageous for wheel drives. A single wheel drive also enables control of the axis. 11, 12 and 13, in a fourth embodiment of the invention, a cylinder mower 301 comprises a knife spindle 302 with a core drive 303 therein and frame plates 304. The support wheels 33 are in FIGS. 11 and 12 inside the continuous frame plate 304 and in 13 is arranged outside an inwardly cranked frame pane 306. Support rollers 307 are arranged in front of the knife spindle 302 in both cases. An inclined transition surface 308 guides the clippings from the knife spindle 302 into a collecting container 309.

The drive system according to the invention in the core of work spindles can thus be optimally adapted for cylinder mowers and the like, such as scarifiers, lawn aerators or flail mowers. This results in advantageous arrangements of support wheels, support rollers and containers. This makes the device appear compact and has a narrow and flat design.

14 and 15, the drive motor 6 and the reduction gear 7 are arranged in the fifth embodiment in the broom 22 formed by the sweeper bars 2. On the outside of the broom 22, fins 60 are attached for improved heat dissipation. Via an inlet edge 404, the picked-up goods reach a tine rotor 405 with its rigid tines 406. When passing through grooves 407, the goods are crushed and torn and then pressed into a container 409 via a press channel 408. A bag 430 for filling can optionally be connected to a mouthpiece 410 of the press channel 408. The envelope of such a bag 430 is preferably made of impermeable but rotten material. As a result, the sack 430 can be composted together with its contents without having to be emptied.

The broom 22 is connected to an output shaft 411 of the reduction gear 7. At the inner end of the broom 22, a clutch 212 with a gear 413 is arranged. A shaft 416 of the tine rotor 405 is driven via an intermediate wheel 414 via a gear wheel 415. A sleeve 417 of the core drive is fixed to a flange 418 on a side frame 419. The power supply 420 takes place via the flange 418. The individual tines 406 of the tine rotor 405 are identical to one another as double tines and fanned out and braced against one another on a hexagonal shaft 421.

It should be noted that the features of the invention described with reference to individual embodiments, such as, for example, details of the drive, the transmission of the drive power to the individual tools or other design features and the possible uses of the drive system according to the invention, may also be present in other embodiments, except if it is stated differently or out

Claims

claims:

1. Drive system for garden, yard and household appliances, such as mowers, scarifiers, sweepers, leaf collectors, lawn aerators and the like, with a lying work spindle (1), a tool arranged on the casing of the work spindle (1), and a possibly by one Battery powered electric motor (6), which drives the work spindle (1) via a reduction, characterized in that the electric motor (6), and preferably a reduction gear

(7) and / or an overload clutch and / or the battery (8), is or are arranged in the core of the work spindle (1).

2. Drive system according to claim 1, characterized in that the electric motor (6) and preferably the reduction gear (7) and / or the overload clutch and / or the battery

(8) are arranged in a tubular sleeve (5).

3. Drive system according to claim 2, characterized in that the drive of the work spindle (1) is in the region of one end of the tubular sleeve (5) and the fixation of the work spindle (1) on a frame connected to the drive system in the region of the other End of the tube sleeve (5).

4. Drive system according to claim 2 or 3, characterized in that the output of the tubular sleeve (5) is connected on the output side directly to the work spindle (1) and torsionally rigid.

5. Drive system according to one of the preceding claims, characterized in that the work spindle (1) is mounted on one side directly and on its other side via a fixation on a frame connected to the drive system.

6. Drive system according to claim 5, characterized in that the energy supply and the control via a cable (18) take place through the fixation.

7. Drive system according to one of the preceding claims, characterized in that on the work spindle (1) drives for further units can be connected directly or via a coupling.

8. Drive system according to one of the preceding claims, characterized in that a plurality of work spindles (1) are provided which have their own drives.

9. Drive system according to one of the preceding claims, characterized in that in addition to a battery (8) in the tubular sleeve (5), a further battery (38) is provided outside of it.

10. Drive system according to one of the preceding claims, characterized in that the work spindle (1) is designed as a broom (2).

11. Drive system according to claim 10, characterized in that the broom (2) extends between side plates (3) over the entire width between the side plates (3) and in the feed direction behind the broom (2) support wheels (33), preferably within Width between the side plates (3) are arranged.

12. Drive system according to claim 11, characterized in that the support wheels (33) are arranged within the width between the side plates (3) and guide surfaces (30) are provided on both sides between the broom (2) and the support wheels (33).

13. Drive system according to claim 12, characterized in that a collecting container (32) is connected in the feed direction directly behind the guide surfaces (30).

14. Drive system according to one of claims 11 to 13, characterized in that optionally adjustable skids (20) are arranged on the side plates (3) directly below the center of the broom (2).

15. Drive system according to one of claims 11 to 14, characterized in that a guide linkage (35) from two upward and rearward extending spars (48) is provided, each having an upper end, which in a handle (36) Actuator switches (37) are brought together.

16. Drive system according to one of claims 9 to 15, characterized in that the connection of a charging cable and a holder for the additional battery (38) are located at the upper connection of the bars (48).

17. Drive system according to one of claims 13 to 16, characterized in that between the broom (2) and the collecting container (32) there is a catch rail (26) which is formed from low-friction material or is coated with such.

18. Drive system according to one of the preceding claims, characterized in that the tubular sleeve (5) is designed as a support tube (101) and is attached on one side to a frame or guide bar (103) connected to the drive system.

19. Drive system according to claim 18, characterized in that the work spindle (1) is mounted at one end on a bearing (107) of the support tube (101) and at its other end on the output pin (106) of the support tube (101) connected in a torsionally rigid manner is.

20. Drive system according to claim 18 or 19, characterized in that the axial securing of the work spindle (1) is provided with a quick release.

21. Drive system according to one of claims 18 to 20, characterized in that the battery (8) is arranged directly on the frame or in the guide rail (103).

22. Drive system according to one of claims 18 to 21, characterized in that a motor switch in the support tube (101) or directly in the frame or guide bar (103) is arranged.

23. Drive system according to one of claims 19 to 22, characterized in that the output pin (106) is designed as a bearing (107) for supporting the frame.

24. Drive system according to one of claims 18 to 23, characterized in that the work spindle (1) is designed as a milling drum (108).

25. Drive system according to one of the preceding claims, characterized in that the tubular sleeve (5) has a flange (213) on a fixed side and a coupling (212) on an output side and is fastened to a frame (205) which has a corresponding opening (207) for the tubular sleeve (5) and fastenings for the flange (213).

26. Drive system according to claim 25, characterized in that a bearing for the work spindle (1) is arranged on the fixed side of the tubular sleeve (5).

27. Drive system according to claim 25 or 26, characterized in that the work spindle (1) on an intermediate disc (214) is positively connected to the bearing.

28. Drive system according to one of claims 25 to 27, characterized in that two support sleeves (218, 219) designed as a support tube are arranged on a central spar (220) and each common tube sleeve (4) is arranged on each side with a drive unit (221, 222) and a reduction gear (7).

29. Drive system according to claim 28, characterized in that a turntable (228) is arranged on the support sleeves (218, 219) or on the common tubular sleeve (4).

30. Drive system according to claim 29, characterized in that on the driven sides of the common tubular sleeve (4) wheel hubs (226) and impellers (227) are arranged.

31. Drive system according to claim 1, characterized in that the work spindle is designed as a knife spindle (302) for a cylinder mower (301) and has an outer frame which is formed in the area of the knife spindle (302) from thin frame disks (304) and not over the width of the knife spindle (302) protrudes.

32. Drive system according to claim 31, characterized in that a shear bar (305) is arranged behind the knife spindle (302) in the feed direction and support wheels (33) lying behind it within the width of the outer frame.

33. Drive system according to claim 32, characterized in that in addition a support roller (307) is arranged in front of the knife spindle (302).

34. Drive system according to one of claims 31 to 33, characterized in that bevelled transition surfaces (308) are installed on both sides between the knife spindle (302) and a narrower collecting container (309) adjoining it in the feed direction.

35. Drive system according to claim 32, characterized in that the support wheels (33) via the knife spindle (302) are driven by laterally arranged reduction gear with freewheel and clutch.

36. Drive system according to claim 1, characterized in that further, separately stored tools can be driven directly or via a clutch and the drive from the core of the work spindle (1) via a laterally arranged chain drive or via gear wheels (413, 414, 415) ,

37. Drive system according to claim 36, characterized in that there is a coupling (212) on the side drive in the case of interchangeable tools.

38. Drive system according to claim 36, characterized in that in the case of interchangeable tools with a motor (6) arranged in their core, a clutch (212) is arranged between them and the side drive.

39. Drive system according to one of claims 36 to 38, characterized in that the tools arranged at the front in the feed direction are a mowing or pick-up tool (22) and the tools arranged behind in the feed direction are a pressing device with, for example, press rotor (405) and pressing channel (408) or a transport or crushing device or the like.

40. Drive system according to claim 39, characterized in that the press channel (408) opens into an emptying container (409) with a preferably exchangeable connecting sleeve (410) for a removable container (430), which is designed in particular as a sack.

41. Drive system according to one of claims 36 to 40, characterized in that an inlet edge (404) is provided which is exchangeable when tools are exchanged in accordance with the requirements of the respective tool.

42. Drive system according to claim 40 or 41, characterized in that the shell of the removable container (430) consists of impermeable but rotten material.

43. Drive system according to one of the preceding claims, characterized in that the jacket of the work spindle (1) and / or an optionally present tubular sleeve (5) on its or its outside has lamellae (60) for heat dissipation.