CN1953653A

CN1953653A - lawn aerator

Info

Publication number: CN1953653A
Application number: CNA2004800330453A
Authority: CN
Inventors: 戴维·迈克尔·史卢
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-10
Filing date: 2004-11-10
Publication date: 2007-04-25
Also published as: WO2005046306A1; CA2545234A1; GB2403885A; GB0326204D0; GB2403885B; EP1681914A1

Abstract

The aerator has several inventive aspects which are improvements over the prior art and is used to provide cylindrical holes in lawns or similar surfaces for loosening compacted soil and collecting soil particles by a "digging" method in the form of twin claws at the end of each drill. The aerator is a one-man machine, driven by an electric or gasoline engine, with a series of special drill bits, each of which is mounted in a hollow fork tube. Each drill bit is made of thin metal plate of a spiral design to obtain maximum space for conveying soil upward through the fork tube to which a rotational force is applied and upward into the soil box. The drill bits are driven by a series of pulleys and the whole is pushed down into the soil and retracted in two stages by an extended handle.

Description

Lawn aerator

The present invention relates to the power lawn aerator.

Background of invention

For a long time, the zone of known lawn of people and turfiness benefits from the root that it directly contacts fertilizer, air and oxygen, improving growth conditions, and, this by bore on the surface, meadow a series of holes machine--a kind of aerating system realizes.Ventilate not only for root area provides direct channel, and help to alleviate owing to walk causes soil packing, thereby produce better growing environment and promote darker root growth, this also helps thinner grass to grow ground.Ventilation also is used for by removing tamper, for example clay, and with the loam mixture--a kind of medium (medium) of more useful growth is filled these holes, to change soil constituent through after a while.

According to the fork type that punching is used, the fork general diameter is 10-15mm, mainly contains two kinds of vent methods.First method is used solid or static fork, trends towards being used in large-area meadow, for example, and on the golf course meadow, to make things convenient for the motion of air and moisture; Yet these solid nails have increased compaction problems.Second kind and preferable methods are to utilize the fork of hollow to enter material so as to removing soil core (cores of soil).This method produces minimized soil compaction around hole wall.

The capable two kinds of outward appearances of hollow distributary: be installed on the tractor, or the at the heel machine (pedestrian walk-behind machines) of pedestrian.Many people use the heavy going barrel system of band fork.When rousing through the lawn, the weight of drum forces the hollow fork to enter ground.But, because fork enters ground at a certain angle, so this can't have problems.When hollow fork entered ground, it was tending towards the tear fracture grass and at inlet point place compacting soil.Similarly, when pitching when the opposite side in hole is sentenced the certain angle built on stilts, it is tending towards soil is on every side pulled up, thereby stays the ridge one.The method that this is remedied just is to use pressure roller so that its flat surfaces of lawn surface recovery.

To one of improvement of going barrel machine be machine usually by using camshaft, make static fork vertically penetrate soil.Yet, entering the surface in order there to be enough strength to impose on static fork downwards to promote static fork, these machines must need very heavy.Use static hollow fork very common, but it use the ground that penetrates that depends on again subsequently, to force the soil core of from the hole of front, removing above the cylindrical shell (barrel of the tine) of fork, to move and to pass skewed slot.Muddy and the sticking place at soil, clay for example, regular meeting blocks cylindrical shell, this means penetrating and can not produce enough pressure and be convenient to remove the soil that was contained in the fork owing to before penetrating subsequently.The result who does not remove previous core be whole fork more as solid fork operation, it is more real to impel soil pressure to get thus.

Use an improvement of the method for solid fork just to be to use drill bit, be similar to masonry drill (masonry drills), these drill bits enter ground by hydraulic-driven.The rotary drilling-head method penetrates soil and traditional solid fork, and to compare needed downward power less.Yet these drill bits have downward drilling power, and the non-excavating motion.The soil that upwards is transferred to bit sub forms the ridge (volcanic ridge) as the volcano around each hole.Can take many methods to remove the soil of excavation, for example clean or jet, be used in the future collection and removal to lawn edge.On the contrary, because the core that hollow fork produces is finer and close, can be different so be used to remove the method for core, for example, can use " cleaning " machine.

All aforesaid mechanical ventilation machines have all aimed at special market.Yet, the pedestrian dummy that exists some to use by the gardener of family.But, owing to cross the threshold limited and operating flexibility machine is poor, so often break down.Therefore, leave seldom selection for the gardener of family, each all need to select suitable manual flexibility.Still have the gardener who much makes earnest efforts to adopt the garden pitch-fork to be used for ventilating as solid nail.In addition, there is the multiple garden instrument solid and the hollow fork that has, forces these instruments to enter ground by exerting pressure with pin.At last, have the cydariform instrument of a rotation, this instrument has the solid fork that invests on the drum.Thereby the user can be downwards and the application of force forward, thereby force fork to enter and leave soil when the drum rotation.

When run into admant in soil, for example during flint, existing ventilator or can continue pressure with equivalent acts on each and stick cause fork to damage, or when clashing into rigid surface, machine just stops.

The invention statement

According to the present invention, a kind of ventilator that medium, for example soil are ventilated of being used for is provided, described ventilator comprises: a plurality of drill bits, described drill bit are suitable for punching in described medium; It is the co-operating relation with a collecting box in use that the breeches pipe of a plurality of hollows, described breeches pipe are arranged to; The medium that described breeches pipe and described drill bit are arranged as drilled cutting-out is upwards taken up by drill bit, and the breeches pipe by hollow also enters collecting box.

Advantageously, ventilator has the target drill at the two pawl tips of band, its vertical drilling soil and " excavation " soil particle that makes progress.Two pawl drill bit design are for exporting the soil of maximal effective dose from the hole that drill bit forms.Preferably, two pawl drill bits also upwards upwards transmit soil by the breeches pipe of hollow via spiral step.

Preferably, the throwing dish is fixed on the top of hollow fork, and makes the soil deflection that moves upward enter a collecting box.

Preferably, drillstock is held by dress and is located in the carousel (carousel).More preferably, dual stretching pushing pipe (double-tension push-tube) is by the center of each carousel.In this set, pressurized is originally managed in pushing, and whole drill bit contacts the surface, lawn and enters a bit of distance with the breeches pipe assembly, causes breeches pipe and lawn and soil collecting box to enter the co-operating relation.Secondly, the pushing pipe then continues to move downward.Second stage, breeches pipe rests on the original place, that is, contact with the surface, lawn, and drill bit enters soil.

In a kind of the setting, each drill bit is all on the throne by a permanent tension spring control in the top, and this spring is with a predetermined load setting, this load be used to pierce the required downward power of soil and equate.When one or more drill bits run into firm surface, and thereby when running into the resistance of increase, continue downward thrust and on specific bit, produce the power that enough surpasses the tension spring predetermined load.Spring mechanism conforms to specific bit thus.This expression specific bit can not continue to move down, but other drill bit that does not run into firm surface can continue downwards and uninterruptedly.

Each drill bit is all driven by its oneself belt pulley, can (master reduction set) is set be driven by main the deceleration according to the power unit attribute.Ventilator can provide different power to select at an easy rate, and this is because it can have its oneself special engine, electromotor or gasoline engine.For using igniter and seeking the gardener of family of more cheap unpowered (motor-less) scheme, he can use his power drill (in the permission performance range of boring), be connected to the main drive belt wheel by chuck, power drill grips in place by frame.

Some spacings of service range push rod that have the elongated handle of handle button mean and apply downwards and the needed power that moves upward is far smaller than the power that applies at the push rod head.The reduction of this power is except using drill bit to replace reduction the reduction that static fork penetrates the required power of soil.

According to the present invention, a kind of device that is intended to be used in the medium drilling hole of soil or analog also is provided, this device is by the drilling campaign but not punching or extrusion medium produce described hole, and being intended to is the medium ventilation.This device comprises that many covers have the drill bit of hollow breeches pipe, and moving upward with the medium that makes things convenient for drilling enters collecting box, and whole assembly is pushed by the handle that stretches out and enters soil, and the wheel that stretches out at the rear portion plays the counterweight effect.

Advantageously, drill bit is made of a body of drilling head and its back, and this drilling head is used to the device with pawl, and can realizing excavating motion, this body or reversed by even shape forms, and perhaps fluting forms, so that a kind of spiral step to be provided.Rotary drilling-head is used to remove the vertical shearing motion of medium with generation.By power or hand gear, with drill bit linearly or curve ground introduce medium.

Preferably, each drill bit all has a subsidiary throwing dish, the soil particle that moves upward with deflection.

Preferably, the breeches pipe of hollow makes the surface on lawn be connected with the soil collecting box of ventilator, and in linear running the control drill bit with respect to the motion of the bit location of its rotation and chip to any collecting zone.

Drill bit that any one is independent and drive unit thereof are common but nonessential possess can be by overcoming drill bit motion or slide to satisfy the ability of the requirement that stops linear movement towards the power of drilling location bias and in driving mechanism.This power can be produced by any suitable device.

Preferably, the pushing pipe has dual drawing mechanism, so that two power can drive drill bit and breeches pipe and move upward downwards.

Advantageously, this device also comprises a dismountable soil collecting box, and the bottom of this soil collecting box is run through in a series of holes that hold breeches pipe, and wherein, this case is installed in the bottom of drilling assembly.

Advantageously, in the drilling operation, positioner can be manual or automatic system, the relative position of the track in one group of hole that this systematic survey is new.

Another advantage of ventilator of the present invention design is that it compares gentlyer with other power ventilator, and therefore handles more flexible.

The accompanying drawing summary

By the mode of embodiment, in conjunction with the accompanying drawings the preferred embodiments of the invention are described now, wherein:

Fig. 1 has shown the view of the belt pulley of drill bit and receiving drill bit;

Fig. 2 has shown the end view of four complete bit of installing on carousel;

Fig. 3 has shown drill bit lid and disc spring;

Fig. 4 has shown primary clustering;

Fig. 5 has shown base construction;

Fig. 6 has shown drill bit assembly;

Fig. 7 has shown two width of cloth views, and drill bit and breeches pipe are fallen among the A, and it is positioned at resting position among the B;

Fig. 8 has shown the soil collecting box; And

Fig. 9 has shown the end view of lawn aerator.

Accompanying drawing describes in detail

Fig. 1-shown has the view of the drill bit 1 of two pawls and spiral step design.Label 2 is belt pulleys.The 3rd, the throwing dish, this dish enters collecting box with soil particle downwards in the centrifugal action deflect.

Four drill bits that Fig. 2-shown installs on carousel 7.The 4th, the pushing pipe, this pipe is connected with handle.The 6th, there is the drill bit lid of pin inside, holding and to drive drill bit, and the 5th, drill bit setovered enters the permanent tension spring of drive pulley.

Fig. 3-shown the lid 6 that has bearing, this lid is positioned on the drill bit, and the 5th, with the permanent tension spring that predetermined load is provided with, this load guarantees that enough power satisfies the moving requirement of brill, is obedient to but will present when bumping against stone.

Fig. 4-shown primary clustering, the 4th, carousel is connected to the pushing pipe of handle.2 have shown belt pulley, and in this case, this belt pulley is driven by synchronous belt.The 8th, the static storage case.Drive pulley is connected with the power source (not shown) at 9 places.

Fig. 5-shown to have eight holes so that the base construction of eight drill bits to be installed, its concrete size is suitable for this embodiment.The 10th, tubular element, its guiding pushing pipe.The 11st, tripod, as positioner, its each support arm all holds the breeches pipe of a hollow, is used for chip guiding and axially control.

Fig. 6-shown complete drill bit assembly, 12 expression breeches pipes are by tripod support arm fix in position.

Fig. 7-shown sectional view that primary clustering is cut open.The B side, the view right-hand part has shown " snow goose packing ring " (wavey-washer) type spring 13, the two-way phase I of motion down of this spring bias voltage.The 14th, gas pole, second stage, it is biased into original position with whole bit system.The A side, the left side has shown the drill bit 1 and the breeches pipe 12 that place underground.It is realized by following steps: when downward promotion pushing was managed, drill bit assembly just deviated from " snow goose packing ring " 13 and moves downward a fixed range, and this is firmly to contact with the lawn for breeches pipe.Along with the pushing pipe continues downwards, gas push rod 14 makes drill bit enter soil, but breeches pipe 12 rests on the surface.

Fig. 8-shown the soil collecting box that has eight holes 15, drill bit and pipe fork pass these holes.

Fig. 9-shown end view of lawn aerator.16 is handles, and this handle promotes whole drill bit assembly, to pull down the collecting box 17 and the soil of turning.The 18th, extend the subsidiary trailing wheel of frame, when downward promotion handle began to hole, this took turns the effect of playing the balance resistance, to guarantee that assembly can not upgrade.

Claims

1. one kind is used for ventilator that medium, for example soil are ventilated, and described ventilator comprises:

A plurality of drill bits, described drill bit are suitable for drilling hole in described medium;

It is the co-operating relation with a collecting box in use that the breeches pipe of a plurality of hollows, described breeches pipe are arranged to;

Described breeches pipe and described drill bit are arranged such that the medium under the drilling is upwards taken up by drill bit, and the breeches pipe by hollow also enters collecting box.

2. the described ventilator of claim 1 is characterized in that, described drill bit comprises two pawl drilling devices and a body, this body is reversed by even shape and forms, and perhaps fluting forms, to constitute spiral step, drill bit is designed to when rotary drilling-head, produces the vertical shearing motion that is used to remove medium.

3. each ventilator is characterized in that in the aforementioned claim, and described ventilator also comprises throwing dish subsidiary on the drill bit, and described dish is constructed to make that the soil particle deflection that moves upward enters described collecting box.

4. each ventilator is characterized in that in the aforementioned claim, and the breeches pipe of described hollow is constructed to control bit location in linear running.

5. each ventilator in the aforementioned claim also comprises the pushing pipe with dual drawing mechanism; Described pushing pipe is constructed to when stretching for the first time, and all mobile surface to be exposed to fluid of drill bit and breeches pipe also enters a bit of distance, and when stretching for the second time, breeches pipe rests on the surface of described medium and described drill bit enters described medium.

6. each ventilator is characterized in that in the aforementioned claim, and described collecting box is dismountable, and comprises a series of holes that hold described breeches pipe.

7. each ventilator in the aforementioned claim also comprises manually or automatic positioning equipment, and this device is constructed to measure the relative position of the track in one group of new hole.

One kind 1-9 is substantially as ventilator described here in conjunction with the accompanying drawings.