CN103843520A

CN103843520A - Garden vacuum apparatus arranged to collect garden debris

Info

Publication number: CN103843520A
Application number: CN201310654657.5A
Authority: CN
Inventors: 道格拉斯·贝格
Original assignee: Husqvarna UK Ltd
Current assignee: Husqvarna UK Ltd
Priority date: 2012-12-06
Filing date: 2013-12-05
Publication date: 2014-06-11
Anticipated expiration: 2033-12-05
Also published as: GB2508632B; CN103843520B; GB2508632A

Abstract

A garden vacuum apparatus, such as a grass-collecting lawnmower or a garden vacuum, arranged to collect garden debris, comprising: a housing (1) defining an inlet (17), an outlet (7), and an air flow path (10a, 10b, 10c, 10d, 10e) between the inlet (17) and outlet (7) and having a collection chamber (8) therein for collecting garden debris entrained in air flowing through the air flow path (10a, 10b, 10c, 10d, 10e); and an impeller (5) in the collection chamber (8), the impeller (5) being mounted in the collection chamber (8) for rotation about an axis (16), rotation of the impeller (5) acting so as to draw in air from the inlet (17) and to drive the air towards the outlet (7); in which the inlet (17) enters the collection chamber (8) on the axis (16) of the impeller (5), facing the impeller (5).

Description

Be arranged as the meadow vacuum equipment of collecting meadow chip

Technical field

The present invention relates to one and be arranged as the meadow vacuum equipment (garden vacuum apparatus) of collecting meadow chip (garden debris), such as, not exclusive ground, collects careless mower and meadow vacuum plant.

Background technology

Using vacuum equipment to collect meadow chip is known in the prior art; For example, we know the european patent application that is disclosed as EP 0 821 867.Typically, drive the air-flow by this equipment with rotary blade, and chip is removed and is deposited in collecting chamber from this air-flow.

In mower, it is known after chip is removed from air-flow, impeller being set.Conventionally expect to be increased in the amount of collectable grass in collecting chamber.

Or, in the vacuum plant of meadow, be known when chip still arranges fan aloft time in air-flow.This meadow vacuum plant uses spiral case (around the chamber of impeller, not much larger than impeller diametrically) to control the air-flow entering in collecting chamber.But the chip that spiral case is easily stuck between impeller and the inwall of spiral case stops up.

Summary of the invention

According to a first aspect of the invention, provide a kind of meadow vacuum equipment of collecting meadow chip that is arranged as, having comprised:

● housing, limits entrance, outlet and the air flow path between entrance and outlet and has therein collecting chamber and flow through for collecting the meadow chip of carrying secretly in the air of air flow path; And

● be arranged in the impeller of collecting chamber, impeller is arranged in collecting chamber for rotating around axis, and the rotation of impeller is for driving air from entrance air amount and towards outlet;

Wherein, during towards impeller, entrance enters collecting chamber on the axis of impeller.

So, by making impeller be arranged in collecting chamber rather than being arranged in independent spiral case, do not have spiral case to become by chip and stop up.On the contrary, chip will be collected in collecting chamber as desired.User will no longer need to dredge spiral case, but only need empty collection chamber.Because entrance is on the axis of impeller during towards impeller, so the inwall for towards collecting chamber is thrown chip by impeller.

In addition, utilize the impeller in collecting chamber, from the air-flow of impeller can scatter more equably (rather than be directed in collecting chamber on the ad-hoc location of entrance) on collecting chamber.This means, first, meadow chip will scatter to a greater degree on collecting chamber, and secondly, air-flow is pressed on chip in chamber more equably, allows potentially before collecting chamber is filled, more chips to be contained in collecting chamber.Impeller also can mechanically work mostly reduce its size by chopping to chip (particularly leaf).

Preferably, collecting chamber comprises at least one inwall.Impeller can be arranged to throw meadow chip towards each inwall.By such throwing chip, chip can be compacted, thus increased collecting chamber become full before in collecting chamber the amount of collectable chip.

Preferably, each inwall of collecting chamber is not close to impeller.Impeller can have the radius perpendicular to axis; Each inwall of collecting chamber can be radially with respect to axis apart from the distance of at least one radius length of outer rim of impeller (and therefore apart from distances of two radiuses of axis).This has prevented that chip is trapped between impeller and each wall.

At least some inwalls of collecting chamber can ventilate, and make air can on the path of leading to outlet, pass through these inwalls.Ventilated walls can be perforated.

This equipment can be a kind of mower.In this case, this equipment can comprise: housing, is limited to cutting chamber unlimited on the basal surface of housing; And cutting element, being arranged in cutting chamber for around the rotation of cutting axis, the contiguous cutting chamber of entrance is arranged in housing.Typically, the first end of entrance can terminate in cutting chamber, and the second end of entrance terminates in collecting chamber.

In a preferred embodiment, the second end of entrance terminates on the top side away from cutting chamber of collecting chamber.This allows cutting chamber to fill from top, and chip (in the situation that of mower, being mainly typically the grass cutting off) can be distributed in cutting chamber.In this case, the axis of impeller will be typically in use vertical.

Collecting chamber can comprise the lid that covers collecting chamber.The inwall of lid can face down towards collecting chamber.But, radially can there is significant inclination with impeller those prone inwalls in line about axis, make any chip that clashes into wall depart from those inwalls and get back in collecting chamber.This layout has reduced the amount of the chip of the lid of making dirty.

In alternative scheme, this equipment can be a kind of meadow vacuum equipment.Typically, this equipment can be carried by user, and preferably will be suitable for collecting fallen leaves etc.In this case, entrance can be the form of nozzle.

In this case, this equipment can have its pattern as fan blower with and as the pattern of vacuum plant.So, in blower mode, air can be inhaled in outlet and can blow out from entrance.This equipment can be provided with removable spiral case, and this spiral case can be used in the time that equipment is in blower mode around impeller.Therefore, can provide the equipment with two kinds of functions, wherein identical equipment not only can have been drawn (and in collecting chamber collection of debris) but also can blow out (wherein spiral case will and be guaranteed in correct direction from impeller guiding air around impeller).

Regardless of the function of this equipment, collecting chamber can be divided into and comprise two parts that engage by pivotable (typically being hinged) connector.Therefore,, in the time expecting empty collection chamber, two parts of collecting chamber can be distinguished pivotable to allow to remove the chip of collecting in collecting chamber.Typically, hinge connector will be positioned on the top of collecting chamber, makes to allow collecting chamber to open on its basal surface.So useful gravity carrys out the content of empty collection chamber; This equipment can be placed to and make collecting chamber be positioned at suitable dump position top, and then collecting chamber is opened that content is poured on dump position; Such layout is useful to higher capacity mower, and wherein user can not singlehanded lift the collecting chamber of filling.

Accompanying drawing explanation

Now only by the mode of example, embodiments of the present invention are described below with reference to the accompanying drawings, wherein:

Fig. 1 shows the sectional elevation figure through the mower of first embodiment of the invention;

Fig. 2 shows the plane of the mower of Fig. 1;

Fig. 3 shows the stereogram for the meadow vacuum plant second embodiment of the invention of vacuum mode;

Fig. 4 shows the stereogram of the meadow vacuum plant of the Fig. 3 in blower mode;

Fig. 5 shows according to the stereogram of the riding type mower of the 3rd embodiment of the present invention; And

Fig. 6 shows the stereogram of the mower of the Fig. 5 in the time that collecting box is opened.

Embodiment

At the mower of first embodiment of the invention shown in Fig. 1 of accompanying drawing and Fig. 2.Because user stands in after mower and promote mower on surface to be pruned, so this is a kind of walk-behind greensmower.

Although comprising by wheel 13, mower supports and housing 1(the present invention of built on stilts also can carry out on floated mower).Housing 1 limits the cutting chamber 15 with unlimited basal surface.In cutting chamber 15, have and be arranged on the blade 2 driving rotatably by means of belt transmission 6 on rotation 3 and by motor 4.When the blade 2 of rotation has on careless surface through out-of-date long, grass is cut into consistent length by blade 2, owing to doing like this grass that has produced chopping.

Expect to collect the grass of these choppings.So, be provided with collecting chamber 8, can collect therein the grass of chopping.In order to collect the grass of chopping in collecting chamber 8, be provided with impeller 5.This is arranged on the output shaft of motor 4, to rotate coaxially around axis 16 and motor 4.First impeller makes impeller 5 along axis 16 air amounts and drives substantially radially outwardly air around the rotation of axis 16.

Access road 17 is arranged in housing 1, extends to and is close on impeller 5 from cutting chamber.The lower end 18 of access road 17 terminates in the top surface of cutting chamber 15 with the form of semicircular arc.On axis 16, the top 9 of access road 17 is close on impeller 5 and stops.Therefore, be positioned on axis 16 and from top 9 to impeller 5 and have the meaning in continual path on top, top 9 is towards impeller 5.

Therefore, in the time of drives impeller 5 first, air will be inhaled into (arrow 10a) and by (arrow 10b) access road 17, cross impeller 5(arrow 10c) and be distributed on collecting chamber 8.Air can be overflowed (arrow 10d) by the perforation in the lower surface of collecting chamber 8, and will leave housing 1(arrow 10e by exporting 7).Therefore, have air from cutting chamber, by access road 17, cross impeller 5, by collecting chamber 8 and leave outlet 7 path, and impeller will make air-flow along this path process.

The grass of the chopping being scaled off by blade 2 will be entrained in this air-flow.Once they arrive impeller 5, they will be distributed in cutting chamber, therefore provide the more uniform chip of situation being arranged in outlet 7 sides of collecting chamber 8 such as fruit impeller to distribute.In addition, not only because they are entrained in, in air-flow, to make impeller be that the grass of chopping is given motion, and impeller is also physically thrown the grass of this chopping towards the madial wall of cutting chamber 8 in the time that the grass of chopping contacts with it.This is considered to cause the grass of chopping and the compression of the improvement of other chips in collecting chamber 8 and causes, such as the maceration of chip or the machining of chopping, further having improved compression.In addition the air-flow being distributed on the region of collecting chamber 8 own, can be used as compressing the chip in it.

Can see, collecting chamber comprises two groups of walls.First group of lower wall 20(comprises the sidewall of chamber 8) be perforated as described above to allow air-flow to pass.Second group of upper wall 19 forms lid.Upper wall 19 all faces down.But, as what can see in Fig. 1 of accompanying drawing, radially tilting about horizontal plane around those of impeller 5, the grass that makes those walls 19 of any shock is by bounce-back and change direction and get back in collecting chamber 8, especially in lower wall 20.Once collecting chamber 8 is filled, lid 19 can be lifted, and forms the lower wall 20 of container easily and can be carried to suitable chip disposal site.

Therefore, impeller 5 does not move in spiral case.As what can see in Fig. 1 of accompanying drawing, the inwall of collecting chamber 8 exceedes impeller 5 radius r apart from the edge of impeller 5.This means impeller can not be made dirty due to gathering of chip (if impeller moves in entrance (dirty and messy) side of collecting chamber 8 that uses spiral case, will be this situation).

Can also see, impeller 5 is directly driven by motor 4, but blade 2 drives via belt transmission 6.This allows impeller 5 and blade 2 to be driven with different speed, and therefore allows to use less quick runner 5 in still obtaining good cutting efficiency.

At meadow vacuum plant second embodiment of the invention shown in Fig. 3 of accompanying drawing and Fig. 4.This comprises the housing 20 that limits suction casing 21 and collecting chamber 22.Collecting chamber 22 ventilates, typically by being formed as textile bags.Collecting chamber 22 comprises the motor 23 of drives impeller 24.Impeller is driven into around axis 25 and rotates.

As in the first embodiment, first the rotation of impeller 24 makes air suck and distribute radially outwardly along axis 25.This cause air-flow along path 26 by nozzle 21, cross impeller 24 and discharge thus air-flow by collecting chamber 22().Any chip being entrained in air-flow is thrown the acting in conjunction of the air-flow by distributing compressed towards the inwall of collecting chamber 22.Not by blocked spiral case; Meadow vacuum plant tends to particularly spiral case and stops up, especially in the time collecting wetting fallen leaves.Therefore, user does not stop to frequency needs so; Only, in the time that collecting chamber 22 is filled, it be necessary stopping.

Meadow vacuum plant also can be used as fan blower and operates.In this case, be provided with removable spiral case 27, this spiral case in collecting chamber 22 around impeller 24(itself otherwise be untapped).This makes air flow path change direction and by meadow vacuum plant, make the air collected from air intake 28 along fan blower air path 29 by spiral case 27 pass through, around impeller 24(with direction identical in the time that meadow vacuum plant moves as vacuum plant), then leave inlet nozzle 21.In the time that chip does not have (intentionally) to be entrained in air-flow, spiral case 27 is no problem in this pattern.

Therefore, meadow vacuum plant can be used for sucking such as leaf or the careless meadow chip that scales off, or can be used as fan blower, typically this chip is blown in optimum position.

Fig. 5 and Fig. 6 show according to the riding type mower of the 3rd embodiment of the present invention.In this embodiment, mower is provided with cutting chamber 50 on the basal surface of mower; Mower carries jumbo collecting chamber 51 thereafter.Because riding type mower is used for more large-area meadow than walk-behind greensmower conventionally, therefore this is necessary.

Collecting chamber 51 is to work with the very similar mode of collecting chamber of aforementioned embodiments.Be provided with access road 52 from cutting chamber 50 to collecting chamber 51.Power take-off 53(carrys out the internal combustion engine of self-driven riding type mower) drives impeller 54, power take-off and impeller are both positioned at collecting chamber 51.Impeller 54 is along path 55 from access road 52 along vertical axis air amount.Then this be distributed in whole collecting chamber 51 together with the chip of carrying secretly (being mainly the grass scaling off).

Due to the capacity of collecting chamber 51, especially in the time considering the compression of present embodiment and Dominance, the collecting chamber 51 when user can find to be difficult to lift potentially or otherwise operation is filled.On the contrary, collecting chamber 51 is by forming at access road 52 place's hinges two half-

unit

51a, 51b together.As shown in Fig. 6 of accompanying drawing, this allows two half-

unit

51a, 51b to rotate respectively, allows the content of collecting chamber 51 to be deposited in collecting chamber 51 belows.

Therefore user can be driven into riding type mower the dump position of expectation, and opens collecting chamber 51 to discharge chip.This can manually complete or can make opening function automation by means of actuator machinery, electricity or hydraulic pressure.

Claims

1. be arranged as a meadow vacuum equipment of collecting meadow chip, comprise:

Housing, described housing limits entrance, outlet and the air flow path between described entrance and described outlet and in described housing, has collecting chamber and flows through for collecting the meadow chip of carrying secretly in the air of described air flow path; And

Be arranged in the impeller of described collecting chamber, described impeller is arranged in described collecting chamber for around an axis rotation, and the rotation of described impeller is for from described entrance air amount and drive described air towards described outlet;

Wherein, during towards described impeller, described entrance enters described collecting chamber on the axis of described impeller.

2. equipment according to claim 1, wherein, described collecting chamber comprises at least one inwall, described impeller is arranged to throw described meadow chip towards each inwall.

3. equipment according to claim 1, wherein, described collecting chamber comprises at least one inwall, each inwall is not close to described impeller.

4. equipment according to claim 3, wherein, described impeller has the radius perpendicular to described axis; Each inwall of described collecting chamber is the distance apart from least one radius length of outer rim of described impeller with respect to described axis radially.

5. equipment according to claim 1, comprising: housing, is limited to cutting chamber unlimited on the basal surface of described housing; And cutting element, be arranged in described cutting chamber for rotating around a cutting axis, the contiguous described cutting chamber of described entrance is arranged in described housing, and the first end of described entrance terminates in described cutting chamber, and the second end of described entrance terminates in described collecting chamber.

6. equipment according to claim 5, wherein, described second end of described entrance terminates on the top side away from described cutting chamber of described collecting chamber.

7. equipment according to claim 1, wherein, described collecting chamber comprises the lid that covers described collecting chamber, and wherein, towards described collecting chamber, the internal face of described lid is downward, with described impeller radially prone inwall in line there is significant inclination with respect to described axis, make any chip that clashes into these walls turn to and get back to described collecting chamber from those inwalls.

8. equipment according to claim 1 is mower.

9. equipment according to claim 1 is meadow vacuum equipment.

10. equipment according to claim 9, have wherein said equipment as the pattern of fan blower and wherein said equipment the pattern as vacuum plant.

11. equipment according to claim 10, comprise the spiral case that can remove, described spiral case can be used for when described equipment during in described blower mode around described impeller.

12. equipment according to claim 1, wherein, described collecting chamber is divided into and comprises two parts that engage by hinge connector.

13. equipment according to claim 12, wherein, described two parts of described collecting chamber are the chip of pivotable to allow removal to collect in described collecting chamber respectively.

14. equipment according to claim 12, wherein, described hinge connector is positioned on the top of described collecting chamber, makes to allow described collecting chamber to open on basal surface.