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
  • A01M29/06—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like
  • A01M29/10—Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like using light sources, e.g. lasers or flashing lights
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01D—HARVESTING; MOWING
  • A01D75/00—Accessories for harvesters or mowers
  • A01D75/20—Devices for protecting men or animals
• • 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
  • A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
• • 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
  • A01M31/00—Hunting appliances
  • A01M31/002—Detecting animals in a given area

Definitions

• the present invention relates to a motor vehicle mounted warning device for safeguarding against injury to animals by the cutting blades or the like of a cutting machine which is towed by or mounted on the vehicle, such as mowing machines of the kind which include a rotor cutter which functions to cut crops such as hay, grass and like pasture, said crops being intended as silage.
• Botulinum-bacteria can give rise to botulinum toxin centers which can develop and cultivate one of the strongest and most active poisons known to man. Cattle and horses are particularly sensitive to this toxin and as little as 50-100 g of badly contaminated hay may be sufficient to kill a horse.
• An object of the present invention is to avoid the aforesaid drawbacks known with warning devices for safeguarding against injury to animals by the cutting tools of agricultural machines, particularly when cutting crops for ensilage.
• the warning device includes one or more IR-detectors which register the movement and body heat of an animal present in front of the vehicle and which sends a first signal to an acoustic unit which produces a sound, preferably a high frequency sound, which will frighten the animal, and also sends a second signal to the driver's cabin and therewith activates a further acoustic unit which produces a sound that is audible to the human ear and which also activates a warning lamp which remains switched on for as long as an animal is located in front of the vehicle. As long the warning lamp is illuminated and the warning signal sounds, there is a living animal in front of the vehicle and, if the animal refuses to move, the driver is able to leave the vehicle and frighten or carry away the animal concerned.
• IR-detectors which register the movement and body heat of an animal present in front of the vehicle and which sends a first signal to an acoustic unit which produces a sound, preferably a high frequency sound, which will fright
• Figure 1 is a circuit diagram illustrating the inventive device
• Figure 2 illustrates the inventive detector device mounted on a motor vehicle (tractor), seen from one side, and shows the vertical range of the detector;
• Figure 3 is a view from above of the detector device shown in Figure 1 and shows the horizontal range of the detector
• Figure 4 shows the detector unit mounted on the front of a motor vehicle.
• Figure 1 illustrates a preferred.embodiment of an inventive warning device.
• the device includes an IR-detector 1, to which there is connected a detector unit 7 which includes a sweeping or stepping oscillator, an HF- oscillator and a acoustic unit adapted to generate high frequency sound, wherein the detector unit is mounted on the front of the vehicle.
• the device further includes an operating unit 6 which includes a acoustic unit adapted to generate sound that is audible to the human ear, a light unit which delivers a light signal, and a main switch said operating unit being mounted in the driver's cabin.
• the main switch 5 When the motor vehicle 8 is started-up for use in mowing grass, hay or like pasture which is to be ensilaged, the main switch 5 is switched-on therewith activating various parts of the device.
• the detector unit 1 will react to the movement of or the heat emitted by an animal that is located in front of the vehicle 8 and accordingly send a signal to the operating unit 6, which in response thereto activates the acoustic unit 3 and the light unit 4 and which, in a similar manner, draws the attention of the driver to the presence of an animal which is in danger of being injured or killed by the knives of the cutting machine.
• the detector 1 also sends a signal to the sweeping or stepping oscillator which activates the high frequency sound acoustic unit, this sound being intended to frighten away the animal located in front of the vehicle.
• the acoustic and light signals 3, 4 in the driver's cabin will continue to be active for as long as an animal is present in the danger zone, by virtue of their activation as a result of the heat radiated from the animal.
• a stationary animal, whether upright or lying down, will also be drawn to the attention of the driver in this way, therewith enabling the animal to be saved from injury or death. This will ensure that the crops harvested and ensilaged will be free from carcass residues, therewith preventing botulinum poisoning of horses and cattle when given the ensilaged fodder.
• Figure 2 shows the detector unit 7 mounted on the front plate of the motor vehicle, at a height of about 1.5 m seen from one side.
• Figure 3 is a view from above showing the range of the detector device 1 in the horizontal plane.
• the detector unit in the front of the vehicle is connected to the operating unit 6 in the driver's cabin and to the vehicle battery 8.
• the range of the detector device in the horizontal plane is about 110°.
• Figure 4 is a side view showing the detector unit 7 mounted vertically on the front of the vehicle. Spacer means 9 are arranged on the front to obtain vertical positioning of the detector unit 7. It will be understood that the invention is not restricted to the described and illustrated embodiment and that modifica ⁇ tions can be made within the scope of the following claims.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Environmental Sciences (AREA)
• Pest Control & Pesticides (AREA)
• Engineering & Computer Science (AREA)
• Insects & Arthropods (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Birds (AREA)
• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Catching Or Destruction (AREA)
• Harvester Elements (AREA)
• Safety Devices And Accessories For Harvesting Machines (AREA)
• Emergency Alarm Devices (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20391480

Family Applications (1)

Country Status (8)

Cited By (6)

Families Citing this family (2)

Citations (5)

• 1993
  • 1993-10-19 SE SE9303449A patent/SE504105C2/sv unknown
• 1994
  • 1994-10-18 WO PCT/SE1994/000978 patent/WO1995010933A1/en not_active Application Discontinuation
  • 1994-10-18 JP JP7511693A patent/JPH09506766A/ja active Pending
  • 1994-10-18 CA CA 2172994 patent/CA2172994A1/en not_active Abandoned
  • 1994-10-18 AU AU80083/94A patent/AU8008394A/en not_active Abandoned
  • 1994-10-18 EP EP94931253A patent/EP0731631A1/en not_active Withdrawn
• 1996
  • 1996-03-26 FI FI961371A patent/FI961371A/fi not_active Application Discontinuation
  • 1996-04-01 NO NO961311A patent/NO961311D0/no unknown

Patent Citations (5)

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