WO2008119113A1

WO2008119113A1 - Combined hand cultivator and hoe

Info

Publication number: WO2008119113A1
Application number: PCT/AU2008/000443
Authority: WO
Inventors: Eric John Rose; Raylee Ann Rose
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-02
Filing date: 2008-03-31
Publication date: 2008-10-09
Anticipated expiration: 2009-10-02
Also published as: AU2007100285A4

Abstract

A combined cultivator and hoe, comprising a hoe blade (6) and cultivator tines (4, 8), the central tine (4) being fixed to a metal plate (9) and having an adjustable scraper (5). The blade (6) and cultivator tines (8) are both pivotally attached to the metal plate (9) which is fitted to a handle, the angles of the blade (6) and cultivator tines (8) relative to the plate (9) being adjustable between two positions, and the cultivator tines (8) being adjustable relative to the central, fixed tine (4).

Description

COMBINED HAND CULTIVATOR AND HOE

For many years a combined cultivator and hoe has consisted of a thin flat metal blade with tines formed on one end usually set at a fixed angle to a long handle. A variety of tool designs for digging and tilling have included a handle with interchangeable heads suitable for performing specific functions. This invention when fitted with a suitable handle allows for five different functions without changing heads.

By changing the angles of a metal blade and tines it can become: a digging hoe; a push-pull hoe; a cultivator; a furrow maker; or a scraper for cleaning the joints in brick paving. A Culti - Hoe in accordance with this invention comprises a metal plate carrying four bearing surfaces allowing two movable sections, ie: a tine section and a hoe blade section to each be able to be set at two different angles.

Both the said tine and said blade sections are held at working angles by pressure from spring wires fixed across the said metal plate the ends of said spring wires fit into indents on the movable sections.

The blade section consists of a hoe blade preferably approximately one hundred millimetres wide with wings on either side bent at ninety degrees to the blade and fitted with a pivoting devise utilizing two of the four bearing surfaces. The tine section consists of a three tined cultivator with the outer two tines able to fold towards the handle on the remaining two bearing surfaces, allowing a single tine to be used for furrow making for seeds. An adjustable scraper fitted behind the said single tine can be used to clean the joints in brick paving

The invention may be better understood with reference to the accompanying drawings of parts of the invention which: Fjg._X shows side A of a metal plate (9) with four bearing surfaces ((2) attached while Fig. 2. shows side B of the metal plate (9) with the bearing surfaces (2) two spring wires (3) and a single tine (4) with a scraper (5) fitted to the back of the single tine (4) FjgJ5. shows a hoe blade (6) with wings fitted either side to provide attachment to two of the bearing surfaces (2) Indents (7) allow partial rotation to facilitate two positions for the hoe blade (6) Fig. 4. shows two cultivator tines (8) joined together. Pressure from spring wires (3) in indents (7) holds tines (8) in either of two working positions when attached to the two remaining bearing surfaces (2) Figs 5. to 8. show the Culti-Hoe fully assembled and fitted with a suitable handle.

Fig 5. shows blade (6) in position to be used as a digging hoe while Fjg_6. explains how the blade angle is altered to become a push-pull hoe Fig 7. shows tines (8) and (4) in position for cultivator work while in Fjgiϊ. tines (8) are folded forward allowing use of tine (4) and scraper (5) for suitable work.

Any position change takes only seconds as only light pressure with the user's foot is required

Claims

CLAIMSThe claims defining the invention are as follows:

1. A hand operated combined cultivator and hoe whereby a plurality of cultivator tines can be rotated to two pre-determined settings on a pivot point and held in these settings by a spring wire giving access to either a single or multiple number of tines. The single tine having an adjustable scraper fitted behind the said tine which is fixed to a flat carrier plate carrying two bearing surfaces acting as the pivot point for the rotatable tines and a further two bearing surfaces acting as the pivot point for a hoe blade having two pre-determined angle settings and held in position by a spring wire. The metal plate (9) having a provision for a clamp for fitting a handle to the invention.

2. A hoe blade as claimed in claim (1 ) made from hardened metal extended beyond the blade width on both sides and both bent at ninety degrees at blade edge to form attachment to the bearing surfaces and held in position by spring pressure in indents around the pivot point.

3. Cultivator tines as claimed in claim ( 1 ) spaced relative to two of the bearing surfaces by a metal rod and made from suitably hardened metal suitably shaped for tilling soil and held in place by spring pressure in indents around the pivot point.

4. A scraper as claimed in claim ( 1 ) made from high grade wear resistant metal threaded for adjustment and pointed on the working end.

5. A cultivator hoe substantially as herein before described with reference to Figures one to eight of the accompanying drawings.

No claim is made for the handle shown in the drawings.