WO1996033607A1 - Tringle d'ecartement pour clotures electriques - Google Patents

Tringle d'ecartement pour clotures electriques Download PDF

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Publication number
WO1996033607A1
WO1996033607A1 PCT/AU1996/000240 AU9600240W WO9633607A1 WO 1996033607 A1 WO1996033607 A1 WO 1996033607A1 AU 9600240 W AU9600240 W AU 9600240W WO 9633607 A1 WO9633607 A1 WO 9633607A1
Authority
WO
WIPO (PCT)
Prior art keywords
wires
dropper
self
electric fence
cavities
Prior art date
Application number
PCT/AU1996/000240
Other languages
English (en)
Inventor
Tinsley Beck
Original Assignee
Tinsley Beck
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 Tinsley Beck filed Critical Tinsley Beck
Priority to AU54888/96A priority Critical patent/AU690845B2/en
Publication of WO1996033607A1 publication Critical patent/WO1996033607A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
    • A01M29/24—Scaring or repelling devices, e.g. bird-scaring apparatus using electric or magnetic effects, e.g. electric shocks, magnetic fields or microwaves
    • A01M29/26—Scaring or repelling devices, e.g. bird-scaring apparatus using electric or magnetic effects, e.g. electric shocks, magnetic fields or microwaves specially adapted for birds, e.g. electrified rods, cords or strips

Definitions

  • This invention relates to a new device which makes possible an improved method of installing electric fences especially for deterring birds from places where the birds are unwelcome.
  • the components of an electric fence typically include posts, wires, an energizer and an earth-return system.
  • the energizer attached to an electric power source, emits a high voltage electrical pulse approximately every second along the live wires of the fence.
  • a leading manufacturer describes the action of the fence as follows:
  • the present invention relates to three additional facts about electric fencing:
  • the ground may be a poor conductor due to the composition of the soil and lack of moisture.
  • the creatures intended to be shocked by the fence may not be standing on the ground, e.g. birds.
  • a fencing component not mentioned above is the DROPPER (or spacer) which may be described as a light-weight batten attached to the horizontal wires of a fence to maintain the spacings of the wires in the intervals between posts.
  • Posts and droppers serve a similar function in respect of the spacing of the wires, but a post is supported by its lower part being buried in the ground whereas a dropper is suspended by the wires themselves and is not buried in the ground.
  • a dropper designed to control the distance between two wires (live and earth) such that a bird may perch on both at once, is a very small dropper the characteristics of which are the subject of this present invention.
  • a bird fence constructed with use of the self-contained electric fence droppers of this invention can have posts at greater intervals e.g. 20 or 30 metres apart; most of the wire is fully exposed thus enabling birds to properly grasp the two wires; the electric- fence method of deterring birds in broad-acre horticulture has become, for the first time, practicable because of the cheapness and ease of construction.
  • the present invention is a self- contained non-conductive electric fence dropper containing a cavity for each wire, the access to each cavity being a funnel-shaped space for location of the wire in preparation for the wire being clicked into the cavity.
  • a secure grip on the wires is a product of three features of the dropper: the accuracy of fit of the cavity in respect of the diameter of the wire; the length of wire enclosed by the dropper; and the resilience of the dropper in resuming the shape of the cavity after the wire has been clicked into place.
  • the resilience of the dropper cavity is a product of the type of material and the design of the dropper (specifically the thickness and shape of the material that defines the cavity) resulting in the efficient combination of strength and flexibility.
  • the method of manufacturing the self-contained electric fence dropper is likely to be plastic injection moulding or whatever similar technology may be found to suit the purpose.
  • the number of cavities in the dropper is two, with the distance between wires, by way of example only, being 13mm centre to centre, which allows many species of birds to grasp the two wires simultaneously when they perch on them.
  • FIG. 1 shows one example of a self-contained non-conductive electric fence dropper according to this invention.
  • FIG. 2 shows the application of such a self-contained non-conductive electric fence dropper where the objective is to provide an electric shock to birds in proximity to fruit trees.
  • the self-contained electric fence dropper contains two cavities 1 and 2 which grasp the wires 3 and 4. Openings 5 and 6 to the cavities 1 and 2 are funnel shaped to facilitate location of the wires 3 and 4 in preparation for finally clicking the wires into place.
  • the body 7 of the dropper should be of such shape and thickness of material as provides the necessary strength to survive the stress incurred during installation and subsequent movement of the wires due to wind and contact with birds and animals.
  • the length 8 of wire within the cavity of the dropper should be sufficient, together with the precise fit of the cavity and the resilience of the material defining the cavity, to maximize the grip on the wire and minimize twisting of the wires after installation.
  • the wires 3 and 4 could be 2.5mm diameter galvanized steel which is commonly available fencing wire.
  • the distance between the wires for deterring many species of birds could be 13mm, which is close enough for the birds to perch on and complete a circuit but sufficiently far apart to avoid unintended short circuiting between the wires.
  • FIG, 2 shows in diagrammatic form how the self-contained electric fence dropper 20 is used in the field.
  • An energizer 21 plugged into a power source 22 has a LIVE 23 and an EARTH 24 wire leading to a garden or orchard 25.
  • the wires are placed in a position where it is believed, from observation, the birds would be inclined to perch before attacking the fruit 26.
  • the two wires 23 and 24 are attached to posts, 27 and 28, the LIVE wire 23 being insulated at the posts, the EARTH wire 24 not necessarily insulated.
  • the distance 29 between posts may be, for example, 30 metres.
  • the end posts 27 need to be thoroughly supported to allow the wires to be strained reasonably tightly.
  • Intermediate posts 28 have the function only of supporting or guiding the wires and may be of light material and do not need to be put deeply in the ground.
  • The. self-contained electric fence droppers 2 ⁇ of this invention ate snapped, or clicked onto the wires about every 1 metre or at smaller or greater intervals depending on how straight and tight the wires are.
  • the purpose of the droppers 20 is to maintain the spacing between the wires.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Birds (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention porte sur une tringle ou pièce d'écartement pour clôtures électriques (7) servant à maitenir les fils écartés entre les piquets. La tringle d'écartement (7) est faite d'un matériau élastique non conducteur et possède des fentes (1, 2) permettant de serrer en place les fils (3, 4). Les ouvertures (5, 6) pratiquées dans les fentes (1, 2) sont de forme conique.
PCT/AU1996/000240 1995-04-28 1996-04-26 Tringle d'ecartement pour clotures electriques WO1996033607A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54888/96A AU690845B2 (en) 1995-04-28 1996-04-26 Electric fence dropper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPN2678 1995-04-28
AUPN2678A AUPN267895A0 (en) 1995-04-28 1995-04-28 Electric fence configuration for repelling birds from orchids and vineyards

Publications (1)

Publication Number Publication Date
WO1996033607A1 true WO1996033607A1 (fr) 1996-10-31

Family

ID=3787028

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1996/000240 WO1996033607A1 (fr) 1995-04-28 1996-04-26 Tringle d'ecartement pour clotures electriques

Country Status (2)

Country Link
AU (1) AUPN267895A0 (fr)
WO (1) WO1996033607A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6971638B2 (en) 2003-08-21 2005-12-06 Fi-Shock, Inc Fence spacer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563088C (de) * 1932-11-01 Albert Ewen Drahtzaun
FR2445105A1 (fr) * 1978-12-28 1980-07-25 Cfce Capem Cie Fse Cloture Ele Cloture electrique portative pour betail
DE3924364A1 (de) * 1988-09-24 1990-03-29 Baldur Storck Spanndrahthalter
WO1990006674A1 (fr) * 1988-12-20 1990-06-28 Boral Limited Cloture electrique prefabriquee
NZ239872A (en) * 1991-09-20 1995-02-24 Grant Wayne Quinn Support/spacer for wires or cables
WO1995026452A1 (fr) * 1994-03-25 1995-10-05 Larsson Sven Goeran Moyen de fixation de fil de fer conçu pour des clotures
EP0699386A1 (fr) * 1994-09-02 1996-03-06 Veldman & Dijkstra B.V. ClÔture électrique pour la démarcation et la protection d'un pré

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563088C (de) * 1932-11-01 Albert Ewen Drahtzaun
FR2445105A1 (fr) * 1978-12-28 1980-07-25 Cfce Capem Cie Fse Cloture Ele Cloture electrique portative pour betail
DE3924364A1 (de) * 1988-09-24 1990-03-29 Baldur Storck Spanndrahthalter
WO1990006674A1 (fr) * 1988-12-20 1990-06-28 Boral Limited Cloture electrique prefabriquee
NZ239872A (en) * 1991-09-20 1995-02-24 Grant Wayne Quinn Support/spacer for wires or cables
WO1995026452A1 (fr) * 1994-03-25 1995-10-05 Larsson Sven Goeran Moyen de fixation de fil de fer conçu pour des clotures
EP0699386A1 (fr) * 1994-09-02 1996-03-06 Veldman & Dijkstra B.V. ClÔture électrique pour la démarcation et la protection d'un pré

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT PATENT ABSTRACT, Accession No. 89-171191/23, Class P14; & SE,A,87 03419 (HOLMSTROM), 4 March 1989. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6971638B2 (en) 2003-08-21 2005-12-06 Fi-Shock, Inc Fence spacer

Also Published As

Publication number Publication date
AUPN267895A0 (en) 1995-05-25

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