GB2337913A - Scarifying rotary lawn mower. - Google Patents

Scarifying rotary lawn mower. Download PDF

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Publication number
GB2337913A
GB2337913A GB9811722A GB9811722A GB2337913A GB 2337913 A GB2337913 A GB 2337913A GB 9811722 A GB9811722 A GB 9811722A GB 9811722 A GB9811722 A GB 9811722A GB 2337913 A GB2337913 A GB 2337913A
Authority
GB
United Kingdom
Prior art keywords
lawn
scarifying
cutting blade
rotary
scarifier
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB9811722A
Other versions
GB9811722D0 (en
Inventor
John Robinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9811722A priority Critical patent/GB2337913A/en
Publication of GB9811722D0 publication Critical patent/GB9811722D0/en
Publication of GB2337913A publication Critical patent/GB2337913A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D42/00—Mowers convertible to apparatus for purposes other than mowing; Mowers capable of performing operations other than mowing
    • A01D42/04—Soil working
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

A rotary lawn mower is provided with scarifying spikes or prongs mounted on the cutting blade of the lawn mower. These scarifying spikes or prongs may either be attached temporarily (Fig. 6) or permanently (Fig. 3). If the spikes or prongs are temporarily mounted to the cutting blade this may be achieved using pairs of plates which are clamped to opposite ends of the blade, the lowermost of each pair of plates comprising the spike or prong.

Description

SCARIFIER 2337913 This invention relates to a lawn scarifier of the type
which is fixed to, or mounted on, the cutting blade of a rotary lawn mower.
It is accepted that use of a lawn scarifier removes dead grass and other organic matter which accumulates on the soil surface. This increases the circulation of air on the lawn surface and allows light to reach the grass and consequently improves the condition of the lawn and underlying soil.
Lawn scarifiers are available as separate machines but these are relatively expensive and require extra storage space. Only some models of cylinder mowers allow for the cutting cassette to be removed and replaced with a scanifier cassette.
The object of this invention is to provide a type of scarifier which is fixed to, or mounted on, the cutting blade of a rotary lawn mower. Therefore by simply replacing the cutting blade with a scarifying blade, or by attaching brackets to the existing cutting blade, a rotary mower can easily be used as an effective scarifier.
This invention has two possible implementations. The first, provides for a replacement rotary cutting blade with 2 downward facing scarifying soikes or prongs permanently mounted at opposite ends of the cutting blade. This implementation will allow the original rotary cutting blade to be easily removed and replaced by the scarifying blade when required. The second provides two metal or plastic brackets each comprising a downward metal or plastic plate with scarifier spike or prong attached, a metal or plastic base plate, and a means for securing the two metal or plastic plates to opposite ends of the rotary cutting blade.
In either embodiment the sg blade could be fitted with 2 or more spikes or prongs- In either embodiment the scarifying spikes or prongs are made of metal or plastics material or a combination of these materials.
1 A preferred embodiment of the invention will now be described with reference to the accompanying drawing in which:
FIGURE 1 shows the underside of a rotary lawn mower; FIGURE 2 shows a view of the bottom of the replacement rotary mower cutting blade; FIGURE 3 shows a side view of the replacement rotary mower cutting blade with the scarifier spikes or prongs facing downwards; FIGURE 4 is a section of the rotary mower cutting blade, and shows the scarifying spike or prong; FIGURE 5 shows the scarifying spike mounted on the downward facing metal or plastic plate. The illustration also shows a cross-section of the rotary mower blade clamped between the downward facing metal or plastic plate and the metal or plastic base plate; FIGURE 6 shows the metal or plastic plates and scarifijinga spike or prong clamped to the cutting blade of a rotary lawn mower.
j 4 As previously stated the invention has two possible implerentations. Figures 2 and 3 show the first implementation where it is envisaged the scarifying spikes or prongs will be attached permanently to a rotary cutting blade. The original cutting blade can then be removed and easily replaced by the scg blade when required.
Figures 5 and 6 show the second implementation- The two metal or plastic plates, the scarifying spike or prong plate and the base plate, are clamped to the existing rotary cuttina blade. When the bracket is in place two bolts or clips at either side of the C scarifying spike or prong (1) are tightened to secure the scarifying bracket to the rotary blade. An identical bracket is attached to the opposite end of the rotary blade.
IL 3

Claims (1)

  1. A lawn scarifier where the scng spikes or prongs are mounted permanently or temporarily on the cutting blade of a rotary lawn mower.
    A lawn scarifier as claimed in Claim 1 comprising a rotary lawn mower cutting blade with scarifying spike(s) or prong(s) fixed permanently to opposite ends of the underside of a rotary cutting blade.
    A lawn scarifier as claimed in Claim 2 where the scarifying blade temporarily replaces the lawn mowers original rotary cutting blade.
    4. A lawn scarifier substantially as described herein with reference to Figures 3-4 of the accompanying drawing 5. A lawn scarifier as claimed in Claim 1 comprising a metal plate with scarifying spike(s) or prong(s) permanently fixed, a second metal plate of identical dimensions to the first metal plate but without scarifying spikes(s) or prong(s), a means for securing the two metal plates to the cutting blade of a rotary lawn mower.
    j j 6. A lawn scarifier as claimed in Claim 5 wherein the metal or plastic plates are capable of being clamped and secured onto the cutting blade of a rotary lawn mower.
    7. A lawn scarifier substantially as described herein with reference to Figures 5-6 of the accompanying drawing
GB9811722A 1998-06-01 1998-06-01 Scarifying rotary lawn mower. Withdrawn GB2337913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9811722A GB2337913A (en) 1998-06-01 1998-06-01 Scarifying rotary lawn mower.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9811722A GB2337913A (en) 1998-06-01 1998-06-01 Scarifying rotary lawn mower.

Publications (2)

Publication Number Publication Date
GB9811722D0 GB9811722D0 (en) 1998-07-29
GB2337913A true GB2337913A (en) 1999-12-08

Family

ID=10833010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9811722A Withdrawn GB2337913A (en) 1998-06-01 1998-06-01 Scarifying rotary lawn mower.

Country Status (1)

Country Link
GB (1) GB2337913A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB845169A (en) * 1958-08-29 1960-08-17 Henry Robert Nash Improvements in machines for cutting or treating turf, lawns and like grassed areas
US3611691A (en) * 1970-05-28 1971-10-12 Orvel Howard Rake attachment for rotary power mower
GB2000951A (en) * 1977-07-14 1979-01-24 Surridge G P Rotary mower with thatch-cutting means
GB2144614A (en) * 1983-08-10 1985-03-13 Edward James Renshaw Rotary lawn mowers
US5123236A (en) * 1990-03-09 1992-06-23 Leo Bablitz Rotary mower blade with rake springs
GB2252891A (en) * 1991-02-12 1992-08-26 Edward Thomas Patrick Doughney A scarifier

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB845169A (en) * 1958-08-29 1960-08-17 Henry Robert Nash Improvements in machines for cutting or treating turf, lawns and like grassed areas
US3611691A (en) * 1970-05-28 1971-10-12 Orvel Howard Rake attachment for rotary power mower
GB2000951A (en) * 1977-07-14 1979-01-24 Surridge G P Rotary mower with thatch-cutting means
GB2144614A (en) * 1983-08-10 1985-03-13 Edward James Renshaw Rotary lawn mowers
US5123236A (en) * 1990-03-09 1992-06-23 Leo Bablitz Rotary mower blade with rake springs
GB2252891A (en) * 1991-02-12 1992-08-26 Edward Thomas Patrick Doughney A scarifier

Also Published As

Publication number Publication date
GB9811722D0 (en) 1998-07-29

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)