CN103477790A

CN103477790A - Lawnmower

Info

Publication number: CN103477790A
Application number: CN201310233622.4A
Authority: CN
Inventors: 安东尼奥·德·菲利波夫; 格特·蒙克纳斯托
Original assignee: Al Ko Kober SE
Current assignee: Al Ko Kober SE
Priority date: 2012-06-12
Filing date: 2013-06-13
Publication date: 2014-01-01
Also published as: DE202012102156U1

Abstract

The invention relates to a hand guide lawnmower (1) with a cutting blade (3) rotating surrounding a vertical rotating shaft (4) and a metal lawnmower housing (13) with a tail Injection port (35) and a tail grass catcher (7). A cutting chamber (14) surrounding the cutting blade (3) is arranged in the metal lawnmower housing (13). The metal lawnmower housing (13) is a deep drawing part prepared from a metal plate and specially a corrosion resistant plate and has a wedge shape (19) with an upward tail portion.

Description

Mower

Technical field

The present invention relates to a kind of mower.

Background technology

Be well known that in practice a kind of like this walk-behind greensmower, it has and drives circumgyration incision blade and metal mower housing, at this mower housing, comprises cutting chamber, jet and is arranged on the grass catcher of afterbody side.Modern mower has the mower housing of being made by light metal alloy, and it is formed into foundry goods.Although such mower has superiority in the sclerosis of structural design and mower housing, also cause on the other hand Cost Problems.

By the known a kind of lawnmower chassis of patent documentation DE8126381U1, it consists of a plurality of parts and is designed to Welding Structure, and has basic to be columniform cutting chamber, to be provided with the spirality air channel in this cutting chamber.

Summary of the invention

The object of the invention is to propose a kind of improved mower.

According to the present invention, walk-behind greensmower has the cutting blade that rotarilys actuate around upright turning cylinder and with the mower housing of the metal of afterbody jet and afterbody grass catcher, wherein, cutting chamber around cutting blade is set in the mower housing, wherein, the mower housing is designed to the deep-drawing part of being made by metallic plate, particularly corrosion resistant plate, and has the wedge-type shape risen towards afterbody.This design that is the wedge shape deep-drawing part made by metallic plate by the mower casing structure has many advantages.This design provides a kind of and has been better than that cast housing brings, simple and has cost-benefit production.

On the other hand, wedge-type shape is conducive to the function of housing and mower.By this wedge-type shape, can advantageously guide the air stream produced by the circumgyration incision blade, include cut grass bits particle, and align with jet and follow-up grass catcher, particularly dismountable collection grass basket.By this wedge-type shape, can make jet have larger surface and particularly larger height, this is conducive to evenly, intactly fill grass catcher.Can avoid in the mower housing inner in air channel and stop up in grass catcher.Air stream with smear metal especially can be equably and is directed and distribute with the pattern that is essentially stratiform.This air stream also can have vertical durection component based on this wedge-type shape.This shape by the mower housing and therefore and optimised air stream also can make mower quieter.

At this open domed shape downwards with towards afterbody of this metal mower housing advantageously.Favourable part in addition is, jet itself extend past the mower housing height h the overwhelming majority and almost arrive its tops.

The integrated design of mower housing has cost advantage.The mower housing also can be manufactured to the deep-drawing part that single-stage stretches, and this is in manufacturing technology and be favourable economically.

The wedge-type shape of mower housing is in being unfavorable in the early time carrying out the Fiat Reduces Development Time of deep-drawing, particularly single-stage.In order to address this problem, arrange preferably on housing sidewall around crimp, it can form stretching limit or stretching step (Ziehstufe).This also is conducive to form the wedge-type shape of the mower housing with great slope inclination upper wall.The crimp risen towards the housing afterbody is very useful with regard to stretching technique.In this particularly advantageously variable gradient of crimp.

The stepped configuration be arranged on the shell area of outstanding and sagging recess (Mulde) both sides also has the advantage on stretching technique and function.This refers more particularly to the stepped configuration be positioned on the upper wall that tilts to rise.Utilize this step, widen the sudden enlargement formed for air stream by cross section.This is favourable and has promoted the filling to grass cutting collection box on flow technique.In addition, be arranged in front before step, lower housing parts also is conducive to be arranged on the laying of assembly of the motor driver of recess.This step can also be used as the cover type mower (

) overlay of being integrally formed while using.

The mower housing of metal can be laterally asymmetric in the cutting chamber zone, and this has several advantages.Can realize for the smear metal on the housing afterbody best jet angle on the one hand.Air stream can tangentially be discharged basically according to the chamber curve.To make on the other hand the cutting to lawn edge be more prone to, at this, cutting chamber is heaved to the height in the wheel outside in a side.In the height design of the inclination upper wall of hood-shaped mower housing and profile, symmetry can appear, at this, the mower housing be positioned at axially and the both sides in the zone on center vertical plane are designed to identical.The trend of crimp can be also identical on two side surfaces of mower housing.This may have the advantage in production technology and design.

The deep-drawing of mower housing can be realized with the deep-drawing direction tilted with respect to turning cylinder by metallic plate.This is favourable for wedge-type shape, and also is of value to the robustness of mower housing and the accuracy that housing wall forms, and particularly is conducive to avoid flow path, crackle, warpage etc.

In addition, from manufacturing and the reason of stability, in the part of the sphering of mower housing and transition place subsequently, that be essentially formation tilted alignment between straight afterbody part.Between the crimp tilted particularly preferably in transition place and intersection, it is right angle.

Compact especially according to the structure of mower of the present invention, at this, this housing design makes the wheelspan can be shorter.Therefore, this mower can light especially, manipulation exactly.Due to the compact and short especially shape of mower housing, can also increase the volume of grass catcher.This is there is also advantageously to the wedge-type shape of higher rearward height.

Light and manufacture simple according to thin-walled of the present invention, dome-shaped mower case weight.It has substantially is the cross section of U-shaped, and this U-shaped cross-section can also additionally have the top sedimentation in recess area.The front portion of cutting chamber can consist of the mower housing.The mower housing can also form the main and supporting part of lawnmower chassis, and has the procapsid flange of crimp, and this flange has the receiving member for front axle.Structure in tail region is installed and can be utilized the housing insert of being made by synthetic material to complete at low cost, and this housing insert is connected on the zone of back of mower housing with also connecting backward cutting chamber form fit.In tail region, particularly on the edge of afterbody side, the mower housing can have one or more reinforced walls embossings (

), it can the design by the scaffold on the housing insert make the stability of housing reach best in form fit ground engages.

The design of this housing insert and configuration have independently creative meaning, and can be applied in the housing of the mower according to prior art of other types, and it for example is not constructed to the deep-drawing part and may there is no obvious wedge-type shape yet.This housing insert is applicable to all types of thin-walled mower housings of being made by metal or other materials, by this housing insert, can make them stablize in tail region and have certain structure.

The housing insert also can be used for holding and supporting the guider of mower, for example guide tang.The housing insert can be in upper extent, preferably on scaffold, have the socket of the arm of guider, particularly guide tang for mower.The housing insert can also have one or more integrated chambers, in order to receive wheel-drive etc., the particularly driven unit of transmission device.The most important thing is, jet can be arranged in the housing insert, and forms to be conducive to mobile mode with together with adjacent wall.Mower can be in tail region, particularly on the housing insert, have swingable afterbody valve (Heckklappe).

In addition, preferably the upper lifting that forms dismountable connection, particularly form fit to collecting the grass basket of the stopper arms (Haltearme) at rear portion (

).Collection grass basket can be wound with a basket wall at outer ring, thereby makes basket wall can densely and be easy to fluidly be connected on housing insert port and the jet there.The stopper arms tilted provides early stage centering in advance and has made collection grass basket be easier to be lifted.It is relevant that in the main afterbody opening with at the mower housing of preferred this lifting, conduct is preferably the structure of housing insert of annular upper support framework.The housing insert can be simply, be fixed on the mower housing to low expense, thereby the totle drilling cost that will make to manufacture mower significantly reduces and brings cost advantage.

The design that is positioned at the metal shaft support on chassis according to the present invention is favourable for manufacturing technology and cost equally, but it has receiving port that side direction enters and for the guide flange of inserted axle.In addition, axle can be by guide flange and wide support by safety, guide with no damage and support.The axle bush that at this, needn't have separately, seal.Covering can provide additional maintenance.This bracing strut has independently creative meaning equally.Particularly advantageously this bracing strut integrally is molded on metal chassis or mower housing.In addition, this bracing strut design is also particularly advantageous for the mower housing of the above-mentioned deep-drawing of being made by metallic plate.Preferably this bracing strut is arranged on metal mower housing, especially is arranged on the procapsid flange, be preferably molded and be bent upwards.

A kind of preferred embodiment in, metal mower housing has sagging recess on wall thereon, this recess has the passage opening for driver.Preferably this sagging recess is arranged in central shell area, gives prominence to vertically and form the shell area that wedge shape rises between both sides.

In a kind of distortion of embodiment, the tilt angle alpha of the inclination upper wall of metal mower housing is less than back in the front of step.In addition advantageously, the inclination upper wall of mower housing is about 20 ° in the step back with respect to horizontal tilt angle alpha.

For design with collect careless function advantageously, grass catcher has the top of inclination, and it is connected on the upper wall that the afterbody of metal mower housing tilts on extension and with essentially identical angle of inclination.Particularly the angled top of this grass catcher can have in the step back identical with the inclination upper wall or less angle of inclination.

Can comprise front axle and the rear axle with wheel according to mower of the present invention, at this, the diameter of trailing wheel is greater than front-wheel, and is projected into forward the transitional region over metal mower housing.This provides compact and joint space-efficient structure and good handling.

The accompanying drawing explanation

Schematically show for example in the accompanying drawings the present invention.Wherein:

Fig. 1 shows the perspective view of mower,

Fig. 2 shows the end view of mower as shown in Figure 1,

Fig. 3 shows the bottom view of mower as depicted in figs. 1 and 2,

Fig. 4 show there is afterbody housing insert, by the perspective view of the metal mower housing of deep-drawing,

Fig. 5 shows the end view of Fig. 4,

Fig. 6 shows the perspective bottom view of Fig. 4 and Fig. 5,

Fig. 7 and Fig. 8 show front view and the vertical view of configuration as shown in Figures 4 to 6,

Fig. 9 shows the perspective view of the metal mower housing of deep-drawing,

Figure 10 shows the end view of mower housing as shown in Figure 9,

Figure 11 shows the perspective view of the housing insert of being made by synthetic material,

Figure 12 shows the end view of housing insert as shown in figure 11.

Wherein, description of reference numerals is as follows:

1 mower

2 chassis

3 cutting blades

4 turning cylinders

5 hulls

6 drivers

7 grass catchers

8 removable connectors

9 side direction ejection parts

10 guiders, handle

11 control elements

12 direct of travels

13 hood-shaped mower housings

14 cutting chamber

15 conduction devices

16 air-flows

17 tail region

18 afterbody openings

19 wedge-type shapes

20 upper walls

21 steps

22 sidewalls

23 crimps, the stretching step

24 antecurvature edge regions

25 palintrope edge regions

26 transitional regions

The lower limb of 27 mower housings

28 recesses

29 side housing zones

30 side housing zones

31 side walls openings

32 cutting chamber forward part

33 cutting chamber rear sections

34 housing inserts, composite material components

35 jets

36 side arms

37 arm profiles

38 axle receiving members

39 chambers

40 afterbody valve

41 scaffolds

42 handle sockets

43 stopper arms

44 lifting parts

45 procapsid flanges

46 bracing struts

47 front-wheels

48 trailing wheels

49 front axles

50 rear axles

51 receiving ports

52 guide flanges

53 coverings

54 take turns height adjuster

55 wall pressure lines

The height of H mower housing

The length of L mower housing

Α upper wall angle of inclination

The Β intersecting angle.

Embodiment

The present invention relates to a kind of walk-behind greensmower 1 as shown in Figure 1 to Figure 3.

Mower 1 has chassis 2, and this chassis comprises hull 5 and guider 10, crooked guide tang for example, and the operator can utilize this guider to promote mowers 1 or when needed along pulling back in the other direction along the direction of advance 12 of standard.On direct of travel 12, the front portion of mower 1 is positioned at front, and afterbody is positioned at back.

Mower 1 has the mower housing 13 of metal, and it can be the part on chassis 2.Mower housing 13 has downward with open backward domed shape, and forms the cutting chamber 14 with the circular cross-section of being preferably at least partly, and cutting blade 3 rotates around upright turning cylinder 4 in cutting chamber.Cutting blade 3 rotates by the driver 6 on the top that is positioned at mower housing 13.Driver 6 can comprise motor, such as internal combustion engine, electromotor etc.

The housing insert 34 of being made by synthetic material or other applicable materials can be set on the afterbody of mower housing 13, in the afterbody opening 18 of this housing insert insertion mower housing 13 and by its sealing.Can also be provided for cut in housing insert 34 and see Fig. 3 by air stream 16() jet 35 of the grass particle carried secretly.In addition, the grass catcher 7 with dismountable connector 8 is set on afterbody, it is communicated with jet 35 and receives cut grass particle or smear metal.Grass catcher 7 for example can be designed as the leachy collection grass of tool basket.Housing insert 34 can connect mower housing 13 backward, also can form or connect backward cutting chamber rear portion 33.Cutting chamber front portion 32 consists of mower housing 13.

Housing insert 34 can be also the part on chassis 2.Hull 5 is by forming with wheel 47 front axle 49 with the rear axle 50 of the wheel 48 of larger diameter.Front axle 49 is contained on the bracing strut 46 be positioned on mower housing 13, and is covered and keep by covering 53 as required.For rear axle 50, on the tail region 17 of mower housing 13 and housing insert 34, axle receiving member 38 is set.

Mower 1 can also have wheel height adjuster 54, can be in order to raise with respect to ground and to reduce cutting chamber 14 and cutting blade 3.Alternatively, can also only raise or reduce cutting blade 3.In addition, mower 1 also has one or more control elements 11 for driver 6, height adjuster 54 and the possible driver that travels.These control elements 11 can be arranged on guider 10.The driver that travels can be positioned on rear axle 50.It can, by driver 6 in suitable mode, for example, by the belt transmission part guiding illustrated below covering in Fig. 3, and can connect or disconnect as required.

In shown embodiment, the mower housing is designed to the deep-drawing part of being made by metallic plate, particularly sheet metal, and has less wall thickness.Described metallic plate can be in inboard and/or outside upper support protective layer.Preferable alloy mower housing 13 is integrally made and is had a described domed shape, and this domed shape is on cross section and see vertically and be essentially U-shaped.Metal mower housing 13 can be designed to especially to the deep-drawing part that single-stage stretches.This Fiat Reduces Development Time can by rights, for example be realized along the draw direction tilted according to sheet and distortion for example flat metallic plate.

From the side, metal mower housing 13 has the wedge-type shape risen gradually from front to back.This wedge-type shape 19 has been shown in Fig. 5 and Figure 10.As shown in figure 10, on the afterbody end, in level, the height h between the peak of the upper wall 20 of lower limb 27 anyhow and mower housing 13 is greater than 25cm to mower housing 13, is for example approximately 27 centimetres.The afterbody opening 18 of mower housing 13 and the afterbody jet 35 that is arranged in housing insert 34 are also corresponding higher.This jet extends past the overwhelming majority of this height h and almost arrives the top edge of mower housing 13.Fig. 6 and Figure 11 show this configuration.

The leading edge from cutting chamber 14 of mower housing 13 preferably is less than 65cm to the length l of the afterbody end of back, is for example about 60cm or less.Make thus mower housing 13 there is shorter length and than the form of the compactness of SWB.

The cross-sectional width of mower 1 for example is about 46 centimetres.For other cutting width, length l can correspondingly change as required.For different cutting widths and housing width, height h can be the same.

The upper wall 20 that mower housing 13 has upright sidewall 22 and tilts and rise towards afterbody in the zone of wedge-type shape 19.The radius of the transition portion between sidewall 22 and upper wall can be less, for example is about 12mm in the outside.

Mower housing 13 has the sagging recess 28 that band is useful on the passage opening of driver 6 on top or in upper wall 20.Be useful on the fixing point of driver 6 on the recess edge, at this, be connected with cutting blade 3 endways and the motor shaft that forms turning cylinder 4 extends through described opening.The recess 28 that sink is arranged in the middle section of housing, and follows into direction 12 or axially see, it is formed at the outstanding shell area that is arranged on both sides and is between the

shell area

29,30 of wedge shape rising.The smooth upper wall 20 basically be positioned on

outstanding shell area

29,30 tilts to rise towards afterbody, and forms said wedge-type shape 19 with together with the lower limb 27 of level.Fig. 4, Fig. 5, Fig. 7 and Fig. 9 and Figure 10 show this structure.The trend of upper wall 20 and height profile are essentially identical on left and right case side.With regard to stretching technique, this is favourable.

As shown in Fig. 4, Fig. 5 and Fig. 9, Figure 10, the upper wall 20 that is positioned at the inclination rising on

outstanding shell area

29,30 has respectively the step 21 that tilts to rise to afterbody.The angle of inclination of upper wall 29 can be less than the back at step in the front of step 21.The inclined angle alpha of upper wall 20 in the zone of step 21 back for example is about 20 °.Upper wall 20 can tilt and for example the front and back of crooked step 21 have and be essentially straight extending axially.Step 21 in axial direction 12 sees and is arranged on the height that is approximately turning cylinder 4, and this turning cylinder can be also the central shaft of recess 28.

According to Fig. 4 and Fig. 9, the sidewall 22 of metal mower housing 13 has crimp 23, and it walks upwards to have lateral displacement or jump wall.Make thus and be positioned at the following outwards displacement of wall zone of crimp 23.Sidewall 22 can be parallel to this wall region extension and cross crimp 23.Fig. 7 shows this wall construction with front view.Crimp 23 can form the stretching step, and this makes the deep-drawing of mower housing 13 be more prone to, particularly when this deep-drawing is single-stage.As shown in the vertical view in Fig. 8, crimp 23 arranges circlewise around mower housing 13.It is positioned on the previous section and follow-up sidewall areas of cutting chamber 14.Crimp 23 can extend to the tail edge of mower housing or before.Preferably it extends past whole shell length.

As shown in the vertical view in Fig. 8, through sphering and form cutting chamber 14 mower housing 13 zone to latter linked be tail region 17, in this zone, sidewall 22 has the straight part that extends axially basically in left and right.Tail region 17 is penetrated by side direction, and its width is less than the width of cutting chamber part, and at this, each has circular transition place 26 left and right sidewall 22.This transition place 26 is that inclination is anteflexion, and this inclination is anteflexion starts upwards alignment and lateral bend towards mower housing 13 from lower limb 27.Transitional region 26 can roughly be extended along the inclination draw direction in the housing manufacture process.

Mower housing 13 can preferably have bandy flange on its horizontal lower edge 27, and for housing, strengthening is favourable for this.By bottom view and vertical view as shown in Figure 8 as shown in Figure 3, can clearly be seen, mower housing 13 can be asymmetric in side profile, and more firm than what install in other parts on circular case side, at this, tail region 17 is also from the jackshaft lateral displacement.Therefore, on the right side case side of vertical view as shown in Figure 8, cutting chamber 14 further outwards gives prominence to and extends to the wheel outer surface between front-wheel 47 and trailing wheel 48.

As shown in Figure 9 and Figure 10, crimp 23 above-mentioned also extends across transition place 26 and extends on two housing sides in tail region 17 subsequently.In addition, Figure 10 also shows the possible wall opening that is arranged in one of them sidewall 22 31, and this wall opening can be closed by swinging valve, and can realize that when needed the side direction that maybe may be arranged on the ejection part 9 in the outside by being arranged on there flows out.Fig. 3 shows this embodiment with bottom view.

Crimp 23 has height trend inclination and that rise at edge, both sides axial direction from front to back on mower housing 13.This highly moves towards can also tool vicissitudinous and towards the ever-increasing gradient of afterbody.At this, the height of crimp 23 trend is essentially identical on left side and right side.Crimp 23 can be from the housing front until there is no the gradient or only have the very little gradient the antecurvature edge regions 24 of the height of about turning cylinder 4.There is shown this situation in front view and the side-looking as shown in Fig. 5 and Figure 10 as shown in Figure 7.In palintrope edge regions 25 following closely, the gradient of crimp 23 is obviously larger and be preferably the increase of great-jump-forward ground.Jump or change point approximately are positioned on the height of turning cylinder 4.

Inclination by this variation also can cause the crimp 23 on sidewall 22 that different height and positions is arranged.In antecurvature edge regions 24, crimp 23 apart from the interval of lower limb 27, be about upper wall 20 the housing height 1/3rd.In palintrope edge regions 25, this ratio changes after axle 4, at this, at first the height of the crimp 23 above lower limb 27 is increased to half of housing height, and transition place 26 with and subsequent zone in housing height in rising to wedge-type shape 19 2/3rds.In the 26 intersection region, transition place of the crimp 23 risen and inclination, the intersecting angle β between its orientation can be about 90 °.Figure 10 shows this relative setting.

Incline direction and the intersecting angle β in this crimp trend and transition place 26 are strong for Fiat Reduces Development Time, particularly when this Fiat Reduces Development Time be that single-stage and mower housing 13 are while having shown cramped construction.In this case, rear axle 50 and affiliated axle receiving member 38 are positioned at transition place 26 or with minimum being located at interval at thereafter.Make thus trailing wheel 48 in axial direction outstanding until surpass transition place 26 with its front portion.Fig. 3 shows this compactedness.

In end view as shown in Figure 2, grass catcher 7 has the top of inclination, and it is connected on the upper wall 20 that the afterbody of metal mower housing 13 tilts in extension and with essentially identical angle of inclination.The inclined upper of grass catcher 7 can have the inclination angle identical or less with the inclination upper wall 20 of step 21 back at this.This disposing is beneficial to the air stream 16 that inclination that guiding has smear metal is risen, and the too high and large-area jet 35 of this circulation of air enters into grass catcher 7, and particularly also along its top, flows at this.To realize from top the filling to grass catcher 7 thus.Compact structure with larger jet 35 is particularly advantageous to this, and at this, air stream 16 can arrive the rearward end of grass catcher 7.The energy of flow produced by the wind feeding blades of cutting blade 3 of rotation can optimally take full advantage of by the shorter configuration of mower housing 13.This will optimize the charging efficiency of grass catcher 7 and prevent from stopping up.Mowing function and mowing efficiency are also by optimised.

As having in the mower housing 13 in Figure 10 and Fig. 5 install and the end view of the mower housing of fixing housing insert 34 as shown in, the upright edge, rear portion of the mower housing 13 of cheese dress has the trend of inclination, and it is along with respect to the upper wall 20 adjoined, vertical direction the flow direction on crimp 23 and afterbody extends and enter in jet 35.

Fig. 9 and Figure 10 show the layout of one or more reinforced walls embossings (55) on the tail edge of mower housing 13.Preferred this wall pressure line (55) is orientation outwards, and can be arranged on upper wall 20 and sidewall 22.They can be positioned on a lot of positions of tail region 17, particularly are positioned at circlewise on upper shell edge and side body edge and are positioned on the zone of axle receiving member 38.

Show in detail housing insert 34 in Figure 11 and Figure 12.Setting when Fig. 6 shows in mower housing 13 afterbody and inserts with the perspective view under being tilted to.

Housing insert 34 has circular antetheca, and it has the side arm 36 of front curvature, towers to this side arm form fit in the circular cutting chamber zone of metal mower housing 13 and abuts at least partly on corresponding sidewall 22.Side arm 36 is tapered forward until the leading section of point also is close on sidewall 22 hermetically.

Side arm 36 surpasses transition place 26 and stretches out.Side arm 36 has external arm shape profile 37, and it is complementary with corresponding sidewall 22 and guarantees reclining and guiding of the form fit there.At this, the height of arm shape profile 37 trend can conform to the height trend of crimp 23, at this, can obtain form fit in height, and this will guarantee reliable location and the guiding of housing insert 34 in afterbody opening 18.

In addition, housing insert 34 also conforms to the shape of tail region 17.It is designed to have the hollow body structures of ribs, and can also have at least one integrated chamber 39 except jet 35, and this chamber can be sealed and can hold the mower assembly by lid or similar parts where necessary.Described mower assembly can be for example the transmission device of driver of travelling.

The rounded anterior wall of housing insert 34 forms rear cutting chamber zone 33.Fig. 3 shows this layout with bottom view.Can also see that at this being additionally provided on when needed cutting chamber 14 neutralizations for example is arranged on the conduction device 15 on belt cover plate noted earlier, it guides to jet 35 in cutting chamber zone 32 by air stream 16 in the past.

Housing insert 34 can have at back outstanding stopper arms 43, can be used for grass catcher 7 is guided, feels relieved in advance and support and forms dismountable connector 8.These stopper arms can have on top lifting part 44, for form fit ground, receive and are positioned at the mating member on grass catcher 7.For this reason, for example can be provided with depressed part on the top of arm.Stopper arms 43 can enclose the grass catcher 7 that folder (umgreifen) hangs from the outside, as depicted in figs. 1 and 2.In addition, swingable afterbody valve 40 also can be installed on housing insert 34, it can close afterbody opening 18, and keeps flat in the above and by it and close in the collection grass basket 7 hung.

As shown in figure 11, housing insert 34 can also preferably have scaffold 41 in top area and in addition on two adjacent side regions, its form fit ground is with afterbody opening 18 and particularly with wall pressure line 55, be complementary, and supportedly engages and recline at this.Afterbody valve 40 can also be hinged on scaffold 41.

In addition, housing insert 34 also can be in top area, preferably there is the socket 42 for guider 10, especially shaft arm on scaffold 41.Socket 42 can be designed as vertical insertion guide and passage.The upper wall 20 of mower housing 13 has corresponding passage opening on this position.

As shown in Figure 9 and Figure 10, chassis 2, particularly mower housing 13 forwardly have procapsid flange 45 with cutting chamber 14 fronts, and its horizontal positioned also is molded with bracing strut 46, and be bent upwards on a upright position on two lateral edges.Metallic plate can be by correspondingly punching press, compressing and crimp after deep-drawing.As shown in Figure 1, covering 53 can cover this front area protectively.

Bracing strut 46 is carrying front axle 49, and this bracing strut can have repeatedly crooked and shape that conform to the circular contour of cutting chamber antetheca.In order to realize that this bearing carries, the receiving port 51 that each bracing strut 46 has side direction, particularly can enter from afterbody, this receiving port has axially outstanding shell flange 52, and this flange is at least partly round edge of opening, and partly starts by lateral thrust from the plate shape of bracing strut 46.This flange is configured for the bearing flange of wide guiding and bolster 49, and axle 49 can be connected with height adjuster 54 when needed and can be rotated.The covering 53 of for example being made by synthetic material can remain in position the axle 49 supported and needn't bear larger power.

Change to the shown embodiment with describing can be implemented in various different ways.The mower housing 13 of metal can have different moulding and form as required jet 35 in tail region, and at this, housing insert 34 can form in a different manner, or also can be left out as required.Shown housing insert 34 can be optionally for other mower housing.In addition, bracing strut 46 also can alternatively form in other way and arrange, and at this, described axle receiving member can be also different, for example can realize by the synthetic material insert with bearing insert or like.

Claims

1. a walk-behind greensmower (1), there is the cutting blade (3) that rotarilys actuate around upright turning cylinder (4) and with the mower housing (13) of the metal of afterbody jet (35) and afterbody grass catcher (7), wherein, cutting chamber (14) around described cutting blade (3) is set in described mower housing (13), it is characterized in that, described mower housing (13) is designed to the deep-drawing part of being made by metallic plate, particularly corrosion resistant plate, and has the wedge-type shape (19) risen towards afterbody.

2. mower as claimed in claim 1, is characterized in that, the described metal mower housing (13) that is preferably integral type is designed to the deep-drawing part that single-stage stretches.

3. mower as claimed in claim 1 or 2, is characterized in that, described wedge metal mower housing (13) is greater than 25cm at the height (h) of afterbody, is preferably about 27cm.

4. mower as claimed any one in claims 1 to 3, is characterized in that, the length (l) of described wedge metal mower housing (13) from the leading edge of described cutting chamber (14) to the afterbody end is less than 65cm, is preferably 60cm.

5. as the described mower of front any one claim, it is characterized in that, the sidewall (22) of described metal mower housing (13) has crimp (23), wherein, be positioned at the outwards displacement of wall zone below this crimp, and described crimp (23) arranges around described mower housing (13), preferably on whole shell length around the ground setting.

6. as the described mower of front any one claim, it is characterized in that, described crimp (23) has the height trend of inclination in the both sides of described mower housing (13) along direction from front to back, this highly moves towards the tool gradient vicissitudinous and that increase towards afterbody.

7. as the described mower of front any one claim, it is characterized in that, described crimp (23) is from front until there is no the gradient or only have the very little gradient the antecurvature edge regions (24) of the height of about described turning cylinder (4), in palintrope edge regions (25) following closely, the gradient obviously increases and is preferably great-jump-forward ground and increases.

8. as the described mower of front any one claim, it is characterized in that, the mower housing (13) of described metal in being connected backward of the described cutting chamber (14) with sphering, have from side direction introduce and basic be straight tail region (17), wherein, upper at described sidewall (22), the transitional region (26) be positioned between described cutting chamber (14) and described tail region (17) has the tilted alignment that its upper end turns forward.

9. as the described mower of front any one claim, it is characterized in that, the crimp (23) of the transitional region of described inclination (26) and described inclination forms suitable intersecting angle β in intersection region.

10. as the described mower of front any one claim, it is characterized in that thering is the step (21) risen towards afterbody on the upper wall (20) that described metal mower housing (13) tilts to rise at it and outstanding shell area (29,30).

11. as the described mower of front any one claim, it is characterized in that, described metal mower housing (13) has wider afterbody opening (18) on afterbody, the housing insert (34) with described jet (35) of being made by synthetic material is set in this opening, wherein, described housing insert (34) seals described cutting chamber (14) and forms the rear section (33) of the cutting chamber of sphering at afterbody.

12. as the described mower of front any one claim, it is characterized in that, the side arm (36) that the shape of the tail region (17) of described housing insert (34) and described metal mower housing (13) is complementary and has frontal arc, tower to its form fit and also abut at least in part on corresponding sidewall (22) in the cavity area of the sphering of described metal mower housing (13).

13. as the described mower of front any one claim, it is characterized in that, described housing insert (34) comprises the crooked sidewall (36) with external arm shape profile (37), this external arm shape profile is complementary with the sidewall (22) of corresponding described metal mower housing (13), with form fit recline and guide.

14. as the described mower of front any one claim, it is characterized in that, the external arm profile (37) of the sidewall of described bending (36) is complementary with crimp (23) on the corresponding sidewall (22) that is positioned at described metal mower housing (13), to recline with realizing form fit and to guide.

15. as the described mower of front any one claim, it is characterized in that, described housing insert (34) has outstanding stopper arms (43) at dorsal part, for guiding and supporting, has the grass catcher (7) of removable connector (8).

16. as the described mower of front any one claim, it is characterized in that, described stopper arms (43) is tilted to the outer outstanding grass catcher (7) that folder connects that also encloses from the outside.

17. as the described mower of front any one claim, it is characterized in that, described stopper arms (43) has lifting part (44) at top, for form fit ground, receives and is positioned at the mating member on described grass catcher (7).

18. as the described mower of front any one claim, it is characterized in that, described housing insert (34) has scaffold (41) in top area, and its form fit ground is complementary with the afterbody opening (18) of described metal mower housing (13).

19. as the described mower of front any one claim, it is characterized in that, described metal mower housing (13) has one or more wall pressure lines (55) through strengthening on the tail lateral edges, wherein, engages to described scaffold (41) and wall pressure line (a 55) form fit.

20. as the described mower of front any one claim, it is characterized in that, described mower (1) has chassis (2), this chassis comprises hull (5) and for axle (49,50) bracing strut (46), wherein, bracing strut (46) but there is the receiving port (51) that side direction enters, this receiving port has the axial outstanding guide flange (52) for described axle (49,50).