WO1996000498A1 - Motoculteur de jardinage - Google Patents

Motoculteur de jardinage Download PDF

Info

Publication number
WO1996000498A1
WO1996000498A1 PCT/FI1995/000378 FI9500378W WO9600498A1 WO 1996000498 A1 WO1996000498 A1 WO 1996000498A1 FI 9500378 W FI9500378 W FI 9500378W WO 9600498 A1 WO9600498 A1 WO 9600498A1
Authority
WO
WIPO (PCT)
Prior art keywords
cultivator
garden
blade
projections
breaking
Prior art date
Application number
PCT/FI1995/000378
Other languages
English (en)
Inventor
Matti Vainio
Original Assignee
Matti Vainio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matti Vainio filed Critical Matti Vainio
Priority to AU27945/95A priority Critical patent/AU2794595A/en
Publication of WO1996000498A1 publication Critical patent/WO1996000498A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B1/00—Hand tools
    • A01B1/06—Hoes; Hand cultivators
    • A01B1/065—Hoes; Hand cultivators powered

Definitions

  • the present invention concerns a garden cul ⁇ tivator as defined in the preamble to Claim 1.
  • Motor-driven garden cultivators are known in the art, which feature an internal combustion engine as power means.
  • Motor-driven garden cultivators of prior art comprise an apparatus frame and thereto attached, controls, power means and cultivator blades.
  • the principle in garden cultivators of this kind is that the cultivator blades serve as wheels carrying the cultivator.
  • the apparatus moves when the cultiva ⁇ tor blades rotate, whereby the cultivator blades pe ⁇ netrate into the ground and the soil thus affected becomes cultivated.
  • the person operating the garden cultivator walks behind the garden cultiva- tor and controls its travel, its speed and its direc ⁇ tion.
  • manual garden cultivators comprise a handle and fixedly attached thereto a cultivator blade/cultivator blades.
  • Many different manual garden cultivators are known, and their functioning is mainly based on move ⁇ ments of the human hand.
  • Manual garden cultivators are commonly used " for cultivating and weeding small areas such as flower beds and areas under bushes.
  • motor-driven garden cultivators of prior art are that most often they are meant for cultivating extensive areas. Therefore, pre ⁇ viously known motor-driven garden cultivators are bul- ky, whereby their use in cultivating, for instance. small areas such as hedges and flower beds of yards in suburb developments is not feasible.
  • Manual garden cultivators of prior art pre ⁇ sent the problem that their operation involves compa- ratively heavy work, particularly when the soil cons ⁇ tituting the object is hard.
  • culti ⁇ vation using manual garden cultivators is slow work, and therefore it becomes a problem that nothing but especially small areas can be cultivated.
  • the object of the invention is to eliminate the drawbacks mentioned.
  • the specific object of the invention is to disclose an inexpensive, portable and small-sized mo ⁇ tor-driven garden cultivator which renders feasible efficient cultivating and weeding of minor objects in a garden, such as flower beds and areas under bushes.
  • a cultivator blade on a clea ⁇ ring saw for cultivating and weeding small garden ob- jects such as flower beds and areas under bushes.
  • the motor-driven garden cultivator of the invention is characterized by that which is stated in Claim 1.
  • the garden culti- vator constitutes a portable entity
  • the garden cultivator comprises a rotating cultivator blade pro ⁇ vided with breaking-up projections, a body serving as gripping handle, a power means attached to the body for rotating the cultivator blade, and power transmis- sion means for transmitting power from the power means to the cultivator blade.
  • the culti ⁇ vator blade is a round-shaped plate to which a plura ⁇ lity of breaking-up projections have been attached.
  • the breaking-up projections are attached to the plate in regular or irregular configuration, however sub- stantially at right angles to the plate's plane of rotation.
  • the culti ⁇ vator blade comprises a plurality of elongated blades, comprising a blade arm and a breaking-up projection attached to- the end of the blade arm.
  • Advantageously four blades are provided.
  • the blades are similar in shape and substantially disposed at right angles to adjacent blades so that the blades form a cross.
  • the brea ⁇ king-up projections are sharp-edged, mathematically regular projections.
  • the breaking-up projections may for instance be conical spikes, cylindrical spikes, or the breaking-up projections may for instance form cur- ved or straight planes.
  • the power transmission means comprise an angle gear, which transmits the rotary motion of the shaft of the power means to rotary motion of the cultivator blade.
  • the body constitutes the outer shell for the power means, the garden cultivator being advantageously used with one hand in this case.
  • the body is elongated so that the garden cultivator can be used with two hands and standing upright, for cultivating objects in a garden, such as flower beds and kitchen garden.
  • the body comprises a switch, which deenergizes the power means when the grip on the body is released.
  • This switch is advantageously a rebounding press switch, so disposed that the power means is active while pressure is being exerted on the switch and stops when the switch is released.
  • An advantageous application of the invention is to use a rotating blade comprising a plurality of breaking-up projections attached in a horizontal plane in relation to the plane of rotation on a clearing saw, for cultivating objects in a garden such as flo ⁇ was beds and vegetable gardens.
  • a rotating blade comprising a plurality of breaking-up projections attached in a horizontal plane in relation to the plane of rotation on a clearing saw, for cultivating objects in a garden such as flo ⁇ was beds and vegetable gardens.
  • the garden cultivator of the inven ⁇ tion is intermediate between previously known and com ⁇ flashally available garden cultivators.
  • the garden cultivator of the invention combines the light weight and convenient use of a portable garden cultivator on one hand, and the effectiveness of a motor-driven gar ⁇ den cultivator.
  • the advantage afforded by the invention is that cultivating and weeding small objects in a gar ⁇ den, such as flower beds and areas under berry bushes, becomes faster and more efficient.
  • the invention makes possible the manufacturing of a motor-driven, portable garden cultivator which is safe from the user's point of view. That is, the press switch included in one of the invention's embodiments stops the operation of the power means immediately when the press grip of the body is released.
  • FIG. 1 presents a portable, motor-driven gar ⁇ den cultivator according to the invention, as seen from below,
  • Fig. 2 presents the garden cultivator of Fig. 1, in elevational view
  • Figs 3a and 3b present cultivator blades be ⁇ longing to a garden cultivator according to the inven ⁇ tion
  • Fig. 4 presents an embodiment of the present garden cultivator according to the invention, in ele ⁇ vational view.
  • the garden cultivator depicted in Fig. 1 com ⁇ prises a rotating cultivator blade 3 provided with breaking-up projections 2, a body 4 serving as grip- ping handle, a power means 5 attached to the body, for rotating the cultivator blade, and power transmission means 6 for transmitting power from the power means to the cultivator blade.
  • the rotatable cultivator blade 3 is fixedly connected to the power transmission 6 so that the rotary motion of the power means 5 is transmitted to rotary motion of the cultivator blade.
  • the figure further reveals the cultivator blade 3 belonging to one embodiment of the garden cul ⁇ tivator of the invention.
  • the cultivator blade compri- ses a plurality of elongated blades 7, each comprising a blade arm 8 and a breaking-up projection 2 attached on the end of the blade arm.
  • the breaking-up projections 2 are sharp-edged and mat ⁇ hematically regular, and they constitute straight or curved plane surfaces.
  • Fig. 2 shows an embodiment of the garden cul- tivator of Fig. 1.
  • the cultivator blade 3 is composed of a round-shaped plate and of breaking-up projections 2 thereto attached.
  • the breaking-up projections are mathematically regular, e.g. cylindrical pins, attached to the round- shaped plate substantially at right angles against the plate's plane of rotation.
  • the angle gear 8 comprised in one embodiment of the invention, its task being to transmit power from the power means 4 to pro ⁇ vide the rotational motion of the cultivator blade.
  • Said angle gear also serves as step-down gear, and its transmission ratio has been selected so that a sui ⁇ table speed of rotation of the cultivator blade is achieved.
  • Fig. 2 The body constituting the gripping handle of the garden culti- vator serves here as outer shell for the power means. This consideration governs in practice the shaping of the outer shell of the power means, such as an elec ⁇ tric motor, for convenient grip.
  • the body moreover comprises a switch 10, this switch stopping the power means when the grip of the body is released.
  • the switch is joined to the body in such manner that the power means 4 will be operative and rotate the culti ⁇ vator blade 3 only when the user has the body 5 in his firm grip.
  • Figs 3a and 3b show cultivator blades belon ⁇ ging to an embodiment of the garden cultivator 1 of the invention.
  • the cultivator blades comprise a circu ⁇ lar plate 11 and a plurality of breaking-up projec ⁇ tions 2, which are mathematically regular so that they constitute e.g. cylindrical spikes, conical spikes or spikes having the shape of a pyramid.
  • the breaking-up projections 2 are attached to the plate 11 in regular or random configuration, however substantially at right angles against the plate's plane of rotation.
  • Fig. 4 is presented an embodiment of the garden cultivator of the invention.
  • the body 5 comprised in the garden cultivator is of such length that it becomes possible to operate the garden cultivator with two hands and standing upright, for cultivating objects in a garden, such as flower beds and kitchen gardens.
  • the use of such a garden cultivator is fully equivalent e.g. to the use of the embodiment shown in Fig. 2.
  • the portable garden cultiva- tor 1 of the invention is an efficient, and easy to use, implement for cultivating objects in a garden, such as kitchen gardens and flower beds.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

Motoculteur (1) portable pour jardins et potagers comportant une lame rotative (3) munie de couteaux (2), un corps (4) servant de poignée, un moteur (5) solidaire du corps et entraînant la lame, et une transmission (6) reliant le moteur à la lame.
PCT/FI1995/000378 1994-06-30 1995-06-30 Motoculteur de jardinage WO1996000498A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27945/95A AU2794595A (en) 1994-06-30 1995-06-30 Motor powered gardening rotary tiller

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI943154A FI943154A (fi) 1994-06-30 1994-06-30 Moottorikäyttöinen puutarhajyrsin
FI943154 1994-06-30

Publications (1)

Publication Number Publication Date
WO1996000498A1 true WO1996000498A1 (fr) 1996-01-11

Family

ID=8541034

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000378 WO1996000498A1 (fr) 1994-06-30 1995-06-30 Motoculteur de jardinage

Country Status (3)

Country Link
AU (1) AU2794595A (fr)
FI (1) FI943154A (fr)
WO (1) WO1996000498A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336088A (en) * 1998-04-06 1999-10-13 Kevin James Barrington Electrical mini-cultivator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE161890C1 (fr) *
US2888084A (en) * 1954-02-16 1959-05-26 Francis J Trecker Rotary gardening tool
FR2361044A1 (fr) * 1976-08-13 1978-03-10 Lambert Corp Motoculteur a tenir a la main
US4293041A (en) * 1979-05-17 1981-10-06 The Toro Company Power cultivator with debris excluding barrier and scraper
WO1988004884A1 (fr) * 1986-12-24 1988-07-14 SCHÜER, Karl Outil motorise pour la preparation du sol

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE161890C1 (fr) *
US2888084A (en) * 1954-02-16 1959-05-26 Francis J Trecker Rotary gardening tool
FR2361044A1 (fr) * 1976-08-13 1978-03-10 Lambert Corp Motoculteur a tenir a la main
US4293041A (en) * 1979-05-17 1981-10-06 The Toro Company Power cultivator with debris excluding barrier and scraper
WO1988004884A1 (fr) * 1986-12-24 1988-07-14 SCHÜER, Karl Outil motorise pour la preparation du sol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336088A (en) * 1998-04-06 1999-10-13 Kevin James Barrington Electrical mini-cultivator

Also Published As

Publication number Publication date
AU2794595A (en) 1996-01-25
FI943154A0 (fi) 1994-06-30
FI943154A (fi) 1995-12-31

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