DE10057885A1 - Lawnmower, has grass cuttings collection bin with adjustable opening to allow it to be used to spread mulch - Google Patents

Abstract

The channel (30) for grass cuttings leaving the cutting device (20) has its exit end (32) connected to a grass cuttings connection bin (40), which has an adjustable opening (46) used for emptying cuttings or spreading mulch.

Description

Technical field

The invention relates to a lawnmower with a Cutter for cutting grass and others Plants.

Due to various requirements for Lawnmowers that come from different climates Conditions, different types of lawn as well different habits in terms of cutting length and corresponding time intervals between the Lawn mowing results, there is a need for one Lawnmower that is versatile. That's the way it is as desired and depending on the condition of the lawn required that when cutting the lawn the cut grass is either collected or used for mulching.

State of the art

Although lawnmowers are known, both a Collect as well as allow mulching, however, are for this complex and cumbersome retrofitting work on the known Lawnmowers required.  

Presentation of the invention

The invention is based on the technical problem To provide lawnmower through which several Functions with simple means in an integrated way and Way can be carried out without time-consuming and cumbersome retrofitting work is required.

This technical problem is caused by a lawnmower solved with the features of claim 1.

According to this invention, the cut grass is cut from one Cutting device into an ejection channel Grass collecting container is promoted, which on the one hand Collecting the cut grass can be used and on the other hand through an adjustable opening for both Empty the grass catcher as well as for mulch discharge suitable is. These different functions of the Grass catcher are due to the adjustability or Adjustment of the opening of the grass catcher guaranteed.

The opening is for collecting the cut grass closed or is in a place that it allows the cut grass in the Grass catcher is collected. To empty the Grass catcher, the opening is adjusted so that the cut grass falls out of the grass catcher or is removable from this. For mulch discharge, in turn, it is also required that an opening on the Grass catcher is created or in one position brought so that the cut grass returns to the lawn is fed. The cut grass is preferred for Mulch dropping on the lawn just cut back the cut grass ejected.  

Due to the adjustable opening of the grass catcher it is therefore possible to do so in an integrated manner several functions, namely collecting the cut Grass, emptying the grass catcher from that cut grass and mulch discharge for fertilizing the mowed lawn, carried out by a lawnmower can be without expensive retrofitting work, such as for example, a complicated assembly and / or disassembly of individual elements, are required. Thus one Lawnmower with integrated multiple functions provided that for different climatic Requirements as well as for different lawn mowing habits and requirements is appropriate. As a result, the Lawn mower according to the invention for a universal Market independent of country-specific requirements Tobe offered. Therefore, on the one hand, the number of Lawnmower device according to the invention for reducing costs be increased and on the other hand the end user receives a lawnmower with in an advantageous manner integrated multiple functions.

Further advantageous configurations result from the Dependent claims. So is an opening part of the Grass collecting container in this way from a first operating position brought into a second operating position that the opening of the grass catcher. In the first Operating position is the adjustable opening through the Opening part covered to collect the cut Allow grass in the grass catcher. In the the second operating position is the adjustable one Opening by changing the position of the opening part from the first operating position formed by the mulch discharge the resulting opening of the grass catcher enable.

It is also advantageous if the opening part in the second operating position can be locked. Because by doing so  no further activities by the operating personnel during the. Mulch dropping is carried out to open the Grass catcher already in the second operating position to deliver.

The opening part advantageously forms in the first Operating position at least part of the bottom of the Grassbox. This results in a mulch discharge without the cut grass becoming a substantial one Share in the grass catcher can accumulate. this leads to for an even mulching of the mown lawn.

In addition, it is advantageous if the opening part around a horizontal swivel axis between the first Operating position and the second operating position is pivotable.

The pivot axis preferably extends transversely to Direction of movement of the lawnmower, so that Opening part in the direction of movement of the lawnmower for the mulch discharge is pivoted. This has the advantage that the width of the lawnmower through the pivoted Opening part does not increase.

It is also advantageous if the pivot axis is mounted to be changeable to both a pivoting and also a change of location of the entire opening part enable.

The pivot axis is preferably between two end positions can be moved when the opening part is in the second operating position. This can do that Opening part during mulch discharge in a suitable or desired location.

If the swivel axis between the two end positions in Is displaceable in the direction of the ejection channel  Opening part in the area immediately above the Grass catcher are moved. Thus, the Total length of the lawnmower through the swiveled Opening part is not significantly too, so that the maneuvering of the Lawnmower around trees and shrubs not through that pivoted opening part impaired or limited becomes.

In addition, it is advantageous if the pivot axis over two parallel sliding guide parts can be moved is, each in the area of the side walls of the Grass catcher are arranged.

If the swivel axis in at least one of the end positions The position can be locked with a quick release of the opening part in the second operating position at least one sliding guide part both quickly fixed as can also be solved quickly.

Furthermore, it is advantageous that the sliding guide parts via a stop arranged on the opening part in one End position of the pivot axis the opening movement of the Limit the opening part and in the other end position of the Pivot axis the closing movement of the opening part prevent.

According to a further advantageous embodiment of the Invention lies the stop in one end position Swivel axis with a contact point on at least one Sliding guide part and in the other end position of the swivel axis with at least two in the direction of moving the Partially spaced contact points on Sliding guide part. Thus, in an advantageous manner the stop in one end position of the swivel axis Opening movement of the opening part limited and in the other end position of the pivot axis, the closing movement of the Prevents opening part.  

Another advantage of the invention is based on the fact that the stop a cooperating with the sliding guide part, has such a curved surface that the two Points of contact in the direction of moving the Part of the opening form the two ends of the curved surface and thereby the opening part in the one end position Pivot axis with the sliding guide part with the least a point of contact and / or the curved surface in Engagement is pivotable about the pivot axis. Thus, the curved surface of the stop ensures that the closing movement of the opening part is prevented and that the opening part advantageously around the Swivel axis can be pivoted out.

Advantageously, a deflection device for the cut grass downstream of the outlet of the chute arranged. This can cut the grass in one of the deflection device in certain ways Grass catcher can be introduced.

The deflection device is preferably in the upper region of the Grass catcher arranged so that the The grass catcher is filled up to the deflection device can be. It is also advantageous if the Deflector at least partially the top wall of the Grass catcher forms. As a result, the Grass catcher with the integrated deflection device a reduced number of components. This leads to Cost reduction in the manufacture of the Grassbox.

If the deflection device from the outlet of the ejection channel fan-shaped, expanded in the direction of grass ejection the cut grass can be cut according to the fan shape Deflection device can be distributed such that the cut grass stronger across the direction of grass ejection  can spread. On the one hand, this leads to a better one Filling the grass catcher container as the cut one Grass does not accumulate in the middle of the grass catcher, but across the entire width of the grass catcher is distributed in the corners in an advantageous manner. This increases the maximum grass intake of the Grassbox. On the other hand, it comes through the fan-shaped deflection device to a more uniform Fertilization of the lawn by mulch dropping, if that Opening part is in the second operating position. If the deflection device extends from the outlet of the throwing channel extending grass guide bars, with respect to their Course and their arrangement to the fan-shaped extension are adapted to the deflection device, there is a further improved even distribution of the cut grass across the direction of grass ejection with the advantages mentioned above.

Preferably the downstream end is the Deflection device inclined downwards when installed, around the cut grass for both mulch discharge as well redirect for collecting in the grass catcher.

Furthermore, the downstream end of the deflection device preferably a relatively large transition radius downwards on so that the cut grass without abrupt Direction change is redirected downwards.

In addition, the downstream end is the Deflection device in a relatively small extent according to one advantageous embodiment inclined downwards. this has consequence that the deflection device has a small overall length has, so on the one hand in a suitable manner in the Grass catcher to be housed and around the other for an advantageous even distribution of the to cut grass during mulch discharge.  

Furthermore, it is advantageous if the cutting device has two cutting blades, the inlet of the Ejection channel arranged between the two cutting blades is, and wherein the inlet of the ejection channel by means of a Mulch plug device can be blocked. By means of the Mulching plug device can be used for an additional mulching immediately in the area of the cut grass become.

The mulch plug device is advantageously by means of an insertion device through the opening of the Grass catcher and the chute before or in the Inlet of the chute can be fitted and from there demountable. Thus, the mulch plug device without the Use of additional tools and without acceptance or Disassembly of components of the lawnmower mounted become. This is especially true with heavier ones Lawnmowers and lawnmowers with integrated driver seat advantageous because the Lawnmower from below only under considerable Effort is accessible.

The mulch plug device preferably has a built-in Condition downward sliding surfaces to a Clumping of the cut grass at the Avoid mulch plug device.

It is also advantageous if the cutting knives each at least one grass cutting edge and at least one additional cutting edge have, which is arranged above the grass cutter. Thus, the mulching can be done by repeatedly cutting the cut grass qualitatively using the additional cutting edge be improved. This leads to finely crushed cut grass due to its small size between the remaining blades of grass right down to the Soil can settle, which leads to improved fertilization.

Brief description of the drawings

The following are for further explanation and for better Understanding several embodiments of the invention Described in more detail with reference to the accompanying drawings and explained. Show it:

Figure 1 is a schematic side view of an embodiment of the lawnmower according to the invention in the first operating position.

Fig. 2 is a schematic, partially sectioned top view of the lawnmower of Fig. 1;

Fig. 3 is a schematic side view of the lawnmower of Fig. 1 in the second operating position;

Fig. 4 is a perspective view of the deflection device of Lawn mower device according to the invention;

Fig 5 seen a schematic view of the deflection device of FIG 4 from the bottom..;

Fig. 6 is a perspective view of a grass collection container according to a second embodiment of Lawn mower device according to the invention;

Fig. 7 is a side view of the grass catcher of Fig. 6 in the first operating position;

FIG. 8 shows a side view of the grass collecting container from FIG. 6 in the second operating position; FIG.

FIG. 9 shows a side view of the grass collecting container from FIG. 8 with the opening part in another end position in the second operating position; FIG.

FIG. 10 is a sectional view of the cutting device with inserted mulching plug assembly according to the invention; and

Fig. 11 is a schematic side view of a lawn mower according to the invention, which shows the insertion of the mulch plug device by means of an insertion device.

Description of preferred embodiments of the invention

In Fig. 1 an embodiment of a Lawn mower device according to the invention is shown having a vehicle body 10 having a driver seat 11 and wheels 12. A cutting device 20 for cutting grass and other plants is arranged on the vehicle body 10 and is connected to an inlet 31 of an ejection channel 30 for the removal of the cut grass. The discharge channel 30 also has an outlet 32 , which in turn is connected to a grass collection container 40 . The grass collecting container 40 has a deflection device 50 , which deflects the cut grass 42 downward, so that it accumulates in the bottom region of the grass collecting container, as shown by the arrow.

Furthermore, the grass collecting container 40 has a lever 43 , by means of which an opening part 44 of the grass collecting container 40 can be pivoted about a pivot axis 45 such that an opening 46 shown in FIG. 3 is created. To 44 in FIG. 1 is the opening part in a first operating position in which the opening part 44 closes the opening 46 of the grass collection container 40. The opening part 44 forms the bottom and the rear wall of the grass collecting container 40 . Thus, the grass cut by the cutting device 20 is transported via the discharge channel 30 into the grass collecting container 40 , which collects the cut grass 42 in its first operating position during the mowing process.

It should also be mentioned that the cutting device 20 can be adjusted in height for mowing different lawn lengths. As a result of a height adjustment of the cutting device 20 , the discharge channel 30 can shift both vertically and horizontally in order to continue to be in contact with the grass collecting container 40 .

In Fig. 2 the lawnmower according to the invention is shown schematically cut from above. The cutting device 20 has two cutting chambers 21 , in each of which a cutting knife 22 shown in FIG. 10 is accommodated. The inlet 31 of the ejection channel 30 is arranged between the two cutting chambers 21 . In connection with the outlet 32 of the Aufwurfkanals 30 the deflection device 50 is arranged, which is housed in the upper portion of the grass collection container 40 and forms the upper portion of the grassbox 40th

In FIG. 3, the lawnmower device according to the invention from FIG. 1 is now in the second operating position, in which the opening part 44 of the grass collecting container 40 is pivoted about the pivot axis 45 in such a way that the opening 46 of the grass collecting container 40 is formed, which is used to empty the grass collecting container 40 and is suitable for mulch discharge. In this second operating position, the cut grass is now transported in the direction of the arrow via the throwing channel 30 and the deflection device 50 , the cut grass no longer being collected in the grass collecting container 40 in the second operating position, but falling down through the opening 46 out of the grass collecting container.

The cut grass is thus mulched in Direction of movement of the lawnmower to the rear ejected or ejected.

From the first into the second operating position, the opening part 44 is pivoted by the operating personnel sitting on the driver's seat 11 by actuating the lever 43 , so that the grass collecting container 40 can be emptied after the mowing process or so that the grass collecting container 40 is used for mulch discharge during the mowing process can. In order to be able to dispense with a continuous actuation of the lever 43 during the mowing process, the opening part 44 can be locked in the second operating position. The locking can be accomplished in particular by a spring-loaded locking device.

In the case of mulch discharge, the deflection device 50 serves to ensure that the cut grass can be distributed evenly over a large area, in order to ensure an advantageous fertilization of the mowed lawn.

An advantageous embodiment of the deflection device 50 according to the invention is shown in perspective in FIG. 4. The deflection device 50 is formed in a fan-shaped manner in the grass throwing direction from the outlet 32 of the discharge channel 30 . Furthermore, the deflection device 50 has grass guiding webs 55 which extend from the outlet 32 of the ejection channel 30 . These grass guide webs 55 are adapted in terms of their course and their arrangement to the fan-shaped extension of the deflection device 50 . In addition, the downstream end 52 of the deflection device 50 is inclined downward in the installed state, as shown in FIGS. 3 and 1. The downstream end 52 of the baffle also has a relatively large transition radius 51 downward to deflect the cut grass downward without abrupt changes. In addition, the downstream end 52 of the deflection device 50 is inclined downward in a relatively small extent in order to minimize the overall length of the deflection device 50 . Furthermore, the deflection device 50 has on its side a cheek 56 , which prevents the cut grass from spreading beyond the deflection device 50 transversely to its direction of movement.

In Fig. 5, the deflection device is viewed from below. The arrows show the effect of the grass guide bars 55 with regard to the uniform distribution of the cut grass transversely to the direction of movement of the lawnmower or the direction of ejection of the cut grass. The number of grass guide bars 55 can vary, as can the length of the individual grass guide bars 55 . However, it should be noted that the deflection device 50 with the Grasleitstegen 55 and transversely ensures both the mulch launched in collecting the cut grass in the grass collection container 40 for an advantageous uniform distribution to the direction of Lawn mower.

A further embodiment of a grass collecting container 140 according to the invention is now explained in FIGS . 6 to 9. The structure of the second embodiment of the grass collecting container 140 corresponds to that of the first embodiment of the grass collecting container 40 from FIGS . 1 and 3, but the second embodiment of the grass collecting container 140 additionally has two parallel sliding guide parts 70 , which are each arranged in the region of the side walls of the grass collecting container 140 , Identical elements with respect to FIGS. 6 to 9 designated by identical to the first embodiment, reference numerals and other additional elements of the second embodiment will be explained in more detail below. The two sliding guide parts 70 are also designed in such a way that the pivot axis 45 is mounted such that it can be moved in the sliding guide parts 70 . In particular, the sliding guide parts 70 have an elongated hole, so that the pivot axis 45 can be displaced between two end positions 145 , 245 in the direction of the ejection channel 30 .

To 44 in FIG. 6 is the opening part in the first operating position in which the opening part 44 closes the opening 46 of the grass collection container 140th However, it should be noted that the grass collecting container 140 is shown in FIGS . 6 to 9 without side walls, which can preferably be constructed from plastic elements or plastic foils. Both the grass catcher 140 and the opening part 44 have struts which form the basic construction of the grass catcher and to which, for example, the plastic films can be attached.

In addition, it can be seen in FIG. 6 that the grass collecting container has an inlet opening 48 for receiving the ejection channel 30 . Furthermore, the deflection device 50 can have a receptacle 57 for hanging on the ejection channel 30 or on the vehicle body 10 .

In FIG. 7, the area of the opening part 44 about the pivot axis 45 is shown in such a way that the sliding guide part 70 lying partially behind it is completely visible. In the first operating position shown in FIG. 7, displacement of the pivot axis 45 is prevented by a stop 141 arranged on the opening part 44 . The stop 141 has a curved surface 142 which cooperates with one end of the sliding guide part 70 such that the curved surface 142 remains in engagement with the end of the opening part 70 during the opening and closing movement of the opening part 44 . Thus, the opening and closing movement of the opening part 44 is limited by the stop 141 to one end position 145 of the pivot axis 45 .

In FIG. 8, the opening portion is now represented 44 by the opening motion in the second operating position, so that the opening 46 for emptying the grass collection container or arises at the mulch shedding. There are now two points of contact 143 of the stop 141 on the top of the sliding guide part 70 , which form the two ends of the curved surface 142 . From this one end position 145 of the pivot axis 45 , the opening part 44 can be displaced in the direction of the ejection channel 30 . The pivot axis 45 slides in the slot of the slide guide part 70 . During this displacement of the opening part 44 and in the other end position 245 , the closing movement of the opening part 44 is prevented by the contact of the two contact points 143 of the stop 141 on the upper side of the sliding guide part 70 .

In Fig. 9, the opening part 44 is shown in the second operating position into the other end position 245th In this other end position 245 and also in the first end position 145 of the swivel axis 45 , the swivel axis 45 can be locked in place in order to avoid an unintentional displacement of the swivel axis 45 in the sliding guide part 70 . If the pivot axis 45 is locked in the other end position 245 by means of the quick-release fastener, the opening part 44 is located directly above the grass collecting container 140 , so that this position of the opening part 44 is particularly suitable for mulch discharge. This is due in particular to the fact that the opening part 44 does not significantly increase the overall length of the grass collecting container 140 and thus of the entire lawnmower in the direction of movement. This simplifies the mowing around trees and shrubs in that the opening part 44 does not get caught on the trees and shrubs when they are turned or cannot get caught with them.

Fig. 10 shows a sectional view of the cutting device 20 comprising two cutting chambers 21. In the cutting chambers 21, a cutting blade is respectively housed 22 that is rotatably supported in the center of the respective cutting chamber 21st The two cutting chambers 21 are disc-shaped and each have two air inlet openings in order to draw air into the chamber. This creates a tunnel effect, so that the cut grass remains briefly in an outer tunnel area of the cutting chambers 21 and is either mulched there or from there into the discharge channel 30 .

The cutting blades 22 each have a grass cutting edge and at least one additional cutting edge 23 , which is arranged above the grass cutting edge. The additional cutting edge 23 can be formed by serrated wings 23 , as shown in FIG. 10. By means of these serrated wings 23 , which are arranged above the grass cutting edge, the cut grass is repeatedly cut in the cutting chambers 21 , so that the grass already cut is advantageously shredded. In order to intensify this repeated shredding of the already cut grass, the inlet 31 of the discharge channel 30 can be blocked by means of a mulch plug device 60 . The mulch plug device 60 is thus located between the two cutting chambers 21 and partially forms them by means of a nose 61 arranged in the middle of the mulch plug device 60 .

Furthermore, the mulch plug device 60 has an obliquely downward sliding surface 62 which is inclined backwards and downwards in the direction of travel in order to avoid clumping of the cut grass. Since the mulch plug device 60 is located in front of the inlet 31 of the discharge channel 30 , the downward sliding surface 62 is arranged in the ejection direction in such a way that the cut grass cannot get into the discharge channel 30 due to the mulch plug device 60 . The downward sliding surface 62 serves as an inclined impact surface on which the grass cut by the cutting blades 23 hits and bounces off there. Lumps that may arise can be broken up by these impact effects. The cut grass then falls from the downwardly sloping sliding surface 62 to mulch on the mowed lawn.

In Fig. 10 an inserter 65 is connected to the mulching plug assembly 60 having at its end a handle 66. With reference to FIG. 11, it will now be described how the mulch plug device 60 is inserted into the lawnmower device by means of the insertion device 65 . For this purpose, the opening part 44 of the grass collecting container 40 is brought into the second operating position in order to place the mulch plug device 60 by means of the insertion device 65 through the opening 44 of the grass collecting container 40 and the discharge channel 30 in front of the inlet 31 of the discharge channel 30 , as indicated by the dashed arrow with two shown positions of the insertion device 65 with mulch plug device 60 . When the mulch plug device 60 is in the installed state, it partly delimits the cutting chambers 21 by the lug 61 and the downward sliding surface 62 . For this purpose, the mulch plug device 60 is placed on corresponding contact elements of the cutting device 20 . In this position of the mulch plug device 60 , a hook 67 of the insert device 65 is removed from a corresponding hook opening 68 of the mulch plug device 60 and the insert device 65 can be removed again from the ejection channel and the opening 44 without the mulch plug device 60 .

If the mulch plug device 60 is now again to be removed from the cutting device 20 , the insertion device 65 is in turn introduced through the ejection channel 30 to the mulch plug device 60 . Now the hook 67 of the insertion device 65 must be inserted again into the hook opening 68 in order to then be able to remove the insertion device 65 together with the mulch plug device 60 through the ejection channel 30 . Thus, the mulch plug device 60 can be mounted by means of the inserting device 65 in front of the inlet 31 of the ejection channel 30 and can be removed from there.

In addition, it is obvious to the person skilled in the art that the Principle explained above also for so-called Manual lawn mower can be used without a driver's seat. Furthermore, the Lawnmower not necessarily have wheels, but can also float on an air cushion.

There is thus provided a lawnmower having a cutter 20 for cutting grass and other plants which communicates with an inlet 31 of an ejection channel 30 for the removal of the cut grass, an outlet 32 of the ejection channel 30 with a grass collecting container 40 ; 140 is connected, at which an opening is adjustable in such a way that the opening is suitable for emptying the grass catcher and for mulch discharge. Thus, due to the adjustable opening 46 of the grass container 40 ; 140 provides a lawnmower with multiple integrated functions, namely collecting the cut grass, emptying the grass catcher 40 ; 140 as well as the mulch discharge of the cut grass, without the need for time-consuming or laborious conversion work.

Claims (26)

1. Lawnmower with a cutting device ( 20 ) for cutting grass and other plants, which is connected to an inlet ( 31 ) of an ejection channel ( 30 ) for the removal of the cut grass, an outlet ( 32 ) of the ejection channel ( 30 ) a grass catcher ( 40 ; 140 ) is connected, at which an opening ( 46 ) is adjustable such that the opening ( 46 ) is suitable for emptying the grass catcher ( 40 ; 140 ) and for mulch discharge. 2. Lawnmower according to claim 1, characterized in that an opening part ( 44 ) of the grass collecting container ( 40 ; 140 ) can be brought from a first operating position into a second operating position such that the opening ( 46 ) of the grass collecting container ( 40 ; 140 ) is created. 3. Lawnmower according to claim 1 or 2, characterized in that the opening part ( 44 ) can be locked in the second operating position. 4. Lawnmower according to claim 2 or 3, characterized in that the opening part ( 44 ) in the first operating position forms at least part of the bottom of the grass collecting container ( 40 ; 140 ). 5. Lawnmower according to one of claims 2 to 4, characterized in that the opening part ( 44 ) about a horizontally extending pivot axis ( 45 ) between the first operating position and the second operating position is pivotable. 6. Lawnmower according to claim 5, characterized in that the pivot axis ( 45 ) extends transversely to the direction of movement of the lawnmower. 7. Lawnmower according to claim 5 or 6, characterized in that the pivot axis ( 45 ) is mounted so that it can be moved. 8. Lawnmower according to claim 7, characterized in that the pivot axis ( 45 ) is mounted between two end positions so that it can be moved when the opening part ( 44 ) is in the second operating position. 9. Lawnmower according to one of claims 7 or 8, characterized in that the pivot axis ( 45 ) between the two end positions in the direction of the ejection channel ( 30 ) is displaceable. 10. Lawnmower according to claim 7 to 9, characterized in that the pivot axis ( 45 ) over two parallel sliding guide parts ( 70 ) is displaceable, which are each arranged in the region of the side walls of the grass application container ( 140 ). 11. Lawnmower according to claim 9 or 10, characterized in that the pivot axis ( 45 ) can be locked in one of the end positions at least by a quick release. 12. Lawnmower device according to claim 10 or 11, characterized in that the sliding guide parts ( 70 ) limit the opening movement of the opening part ( 44 ) via a stop ( 141 ) arranged on the opening part ( 44 ) in one end position ( 145 ) of the pivot axis ( 45 ) and in the other end position ( 245 ) of the pivot axis ( 45 ) prevent the closing movement of the opening part ( 44 ). 13. Lawnmower according to claim 12, characterized in that the stop ( 141 ) in one end position ( 145 ) of the pivot axis ( 45 ) with a contact point ( 143 ) bears on at least one sliding guide part ( 70 ) and in the other end position ( 245 ) the pivot axis ( 45 ) bears on the sliding guide part ( 70 ) with at least two contact points ( 143 ) spaced apart in the direction of displacement of the opening part ( 44 ). 14. Lawnmower according to claim 12 or 13, characterized in that the stop ( 141 ) has a surface ( 142 ) which cooperates with the sliding guide part ( 70 ) and which is curved in such a way that the two contact points ( 143 ) in the direction of displacement of the opening part ( 44 ) form the two ends of the curved surface ( 142 ) and thereby the opening part ( 44 ) in one end position ( 145 ) of the pivot axis ( 45 ) with the sliding guide part ( 70 ) with the at least one contact point ( 143 ) and / or the curved surface ( 142 ) can be pivoted about the pivot axis ( 45 ) while remaining in engagement. 15. Lawnmower according to one of claims 1 to 14, characterized in that a deflection device ( 50 ) for the cut grass is arranged downstream of the outlet ( 32 ) of the discharge channel ( 30 ). 16. Lawnmower according to claim 15, characterized in that the deflection device ( 50 ) is arranged in the upper region of the grass collecting container ( 40 ; 140 ). 17. Lawnmower according to claim 15 or 16, characterized in that the deflecting device ( 50 ) at least partially forms the upper wall of the grass collecting container ( 40 ; 140 ). 18. Lawnmower device according to one of claims 15 to 17, characterized in that the deflection device ( 50 ) from the outlet ( 32 ) of the ejection channel ( 30 ) is formed in a fan-shaped manner in the direction of grass ejection. 19. Lawnmower device according to claim 18, characterized in that the deflection device ( 50 ) from the outlet ( 32 ) of the ejection channel ( 30 ) has grass guiding webs ( 55 ) which, with regard to their course and their arrangement, extend to the fan-shaped extension of the deflection device ( 50 ). are adjusted. 20. Lawnmower according to one of claims 15 to 19, characterized in that the downstream end ( 52 ) of the deflection device ( 50 ) is inclined downwards in the installed state. 21. Lawnmower according to claim 20, characterized in that the downstream end ( 52 ) of the deflection device ( 50 ) has a relatively large transition radius ( 51 ) downwards. 22. Lawnmower according to claim 20 or 21, characterized in that the downstream end ( 52 ) of the deflection device ( 50 ) is inclined downward in a relatively small extent. 23. Lawnmower according to one of claims 1 to 22, characterized in that the cutting device ( 20 ) has two cutting blades ( 22 ), the inlet ( 31 ) of the ejection channel ( 30 ) being arranged between the two cutting blades ( 22 ), and wherein the inlet ( 31 ) of the ejection channel ( 30 ) can be blocked by means of a mulch plug device ( 60 ). 24. Lawnmower device according to claim 23, characterized in that the mulch plug device ( 60 ) by means of an insertion device ( 65 ) through the opening ( 44 ) of the grass collecting container ( 40 ; 140 ) and the ejection channel ( 30 ) in front of or into the inlet ( 31 ) of the Ejection channel ( 30 ) can be installed and removed from there. 25. Lawnmower device according to claim 23 or 24, characterized in that the mulch plug device ( 60 ) in the installed state has downward-facing sliding surfaces ( 62 ). 26. Lawnmower according to claim 23, characterized in that the cutting blades ( 22 ) each have at least one grass cutter and at least one additional cutter ( 23 ) which is arranged above the grass cutter.