Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
  • F41J9/00—Moving targets, i.e. moving when fired at
  • F41J9/16—Clay-pigeon targets; Clay-disc targets
  • F41J9/18—Traps or throwing-apparatus therefor
  • F41J9/30—Traps or throwing-apparatus therefor characterised by using a magazine of targets
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
  • F41J1/00—Targets; Target stands; Target holders
  • F41J1/01—Target discs characterised by their material, structure or surface, e.g. clay pigeon targets characterised by their material

Definitions

• the present invention relates to a target for archery and a system comprising at least one target for archery and a device for launching targets.
• the invention will find its application for training and / or sports entertainment for archery.
• archery is practiced on fixed targets positioned at a distance from the archer. These targets, often packed straw, are large enough to be placed on a tripod and be visible from a distance.
• the present invention relates to a target for archery intended to be launched in the air and able to be impacted by an arrow characterized in that the target comprises at least three layers formed of polymer foam.
• the target is made of polymer foam such as polyvinyl chloride, polyethylene, polyvinyl, and / or polyolefin.
• the target is able to be perforated by an arrow of archery. Archery then becomes dynamic and the archer must aim at a moving target in various directions.
• the polymer foam target is suitable for archery and can therefore be traversed at least partially by an arrow while being reusable.
• the target can still be launched manually or preferentially by an automatic device for launching moving targets.
• the launching of polymer foam targets with the device according to the invention is particularly effective.
• the target according to the invention is such that:
• the target comprises at least two peripheral layers and at least one central layer interposed between the peripheral layers,
• the central layer is of density greater than the density of the peripheral layers
• the central layer has a thickness greater than that of the peripheral layers
• the thickness of the central layer is between 20 and 90 millimeters
• the thickness of the peripheral layers is between 7 and 20 millimeters, the thickness of the target is between 30 millimeters and 150 millimeters,
• the target polymer foam comprises at least one of polyvinyl chloride (PVC) and / or polyethylene and / or polyvinyl and / or polyolefin,
• PVC polyvinyl chloride
• the target has a symmetry of revolution
• the diameter of the target is between 15 millimeters and 400 millimeters
• the target has a diameter of 246 millimeters and a thickness of 50 millimeters.
• the target has a diameter of 330 millimeters and a thickness of 50 millimeters
• each peripheral layer forms an arrow receiving surface
• Figure 1 is a side view of the device according to the invention provided with targets in a first position.
• FIG. 2 is a perspective front view of the device according to FIG.
• FIG. 3 is a side view of the target according to the invention
• FIG. 4 is a perspective view of the target according to FIG.
• the system according to the invention comprises targets 2 intended for archery and a device for launching the targets 2.
• the device is mounted on a base 1 1 which is mounted on a base of a carriage 1, movable as shown in all the figures, or fixed.
• the device according to the invention allows an automatic launch of the targets 2.
• automatic launching means that the launch is performed without human intervention except for any possible actuation command of the machine.
• the device comprises a barrel 3 receiving at least one target 2, a throwing plate 4 of the target 2 when it is withdrawn from the barrel 3, a throwing arm for throwing the target 2 located on the throwing plate 4 and a motor 9 rotating the barrel 3 and the throwing arm.
• a target 2 is extracted automatically from the barrel 3 and is placed on the launching platform 4.
• the engine 9 ensures the arming of the launching arm so as to launch the target 2 lying on the plateau launch 4.
• the target 2 is adapted to automatic launching for a device according to the invention.
• the target 2 is formed of a polymer foam chosen from polyvinyl chloride (PVC), polyethylene and / or polyvinyl and / or polyolefin and so on.
• the target 2 is advantageously formed by a polymer foam whose properties allow a sufficient density to have a good casting resistance, a satisfactory perforation by different types of arrows conventionally used in archery, while being reusable, it is that is, the perforation of the arrow must not damage the structure of the target; the target is not deformed.
• the target is also non-deformable by water, for that the polymer foam is chosen from polymers having a low water absorption.
• the materials of the foams making up the target are advantageously resistant to ultraviolet light. In this way the system according to the invention can be used by any type of time and especially in outdoor events and on shooting routes.
• the density of the target is preferably chosen from the range of 25 Kg / m 3 to 160 Kg / m 3 .
• a target according to the present invention preferably circular having a diameter of 24.5 cm with two receiving surfaces has a weight of around 100 g or 200 g for a diameter of 33 cm. . With such a weight, in the event of a collision with an individual, the damage generated would be minimal or non-existent.
• the target 2 is advantageously formed of a plurality of layers of polymer foam bonded together and successive depending on the thickness of the target 2.
• the target 2 comprises at least one central layer 12 surrounded on each side by at least one peripheral layer 13.
• the target 2 is formed of polymer foam. It is possible to use a different plastic material for the peripheral layers 13 on the one hand and the central layer 12 on the other hand, for example a polyethylene for the peripheral layers 13 and another plastic such as a polyurethane for the layer 12. Other plastics may be used for example an olefin polymer. It is however preferred to use a polyethylene for the outer layers 2 and the inner layer 3 of the target 2 with however different densities in order to perform the sequence of effects previously indicated.
• the different layers of polymer foam advantageously have different densities.
• the most central layer has the highest density while the most peripheral layers have the lowest density.
• This arrangement of a density gradient has several advantages.
• First, the attachment of the arrow is optimized. The arrow enters the first layers of lower density.
• Second, the resistance of the target 2 over time is improved, since it has good mechanical strength due to the central layer 12 of high density. There is little risk of deformation of the target when drilling the boom or removing it.
• this layer 12 higher density center allows better cooperation with the launch device according to the invention.
• the density of the material of the central layer 12 is approximately 65 kg / m3 while that of the peripheral layers 13 is approximately 33 kg / m3.
• the maximum density of 65kg / m3 allows the shooter to extract an arrow that has penetrated the target while having sufficiently braked the arrow during its penetration into the target while the density of 33kg / m3 for the peripheral layer 13 facilitates the attachment of the arrow in the target 2.
• the central layer 12 with a density of 65 kg / m 3 provides rigidity and weight to the target 2 to, if necessary, withstand the mechanical forces during the projection phase said target, the pressure inflicted by the launching device and abrasion-related abrasion during the launching of the target 2.
• the target 2 is launched by means of a throwing arm which therefore exerts a force on the target.
• this launch force must not deform the target and must not be absorbed by it.
• the central layer 12 of high density allows the target to resist the thrust exerted by the throwing arm.
• the central layer 12 is of thickness between the first and the second
• a thickness of the order of 7 to 20 millimeters, and in particular 10 millimeters, has proved particularly effective for the retention of the arrow without it penetrating too much into the target.
• the invention While an average technician would have sought a material offering a compromise between mechanical strength and penetration ability of the boom, the invention has distinguished these two aspects and has the advantage of presenting layers with different functionalities.
• the target 2 is of circular section, it has a symmetry of revolution. Its diameter is preferably between 15 millimeters and 400 millimeters. It advantageously has the shape of a solid cylinder. Other forms may be envisaged such as ovoid for example.
• the thickness of the target 2 is between 30 millimeters and 150 millimeters.
• Competition targets preferably have a thickness of the order of 50 millimeters and a diameter of the order of 246 millimeters.
• the target 2 shown in Figures 3 and 4 is reversible, that is to say that these two peripheral layers 13 form a receiving surface of the target 2 opposite and parallel to each other.
• the device of the system according to the invention is suitable for automatically launching targets 2 as described above.
• the device is configured to allow a sufficiently dynamic launch of the target 2 without damaging it.
• the density must therefore be precisely chosen to limit the compression of the polymer foam at launch.
• the barrel 3 is adapted to the shape of the target 2 to receive.
• the barrel 3 is adapted to receive a plurality of stacked targets 2.
• the barrel 3 is mounted at the launch pad 4.
• the barrel 3 according to the invention comprises at least one interior volume for receiving a stack of targets 2. This interior receiving volume is defined by parallel stops. These stops form guides 5 for each stack of stacked targets 2.
• the barrel 3 comprises five interior volumes for five stacks of 2 stacked targets.
• the diameter and the shape of the interior receiving volume of the stacked targets 2 is variable by modifying the positioning of the guides 5.
• the device according to the invention advantageously allows the unloading of the targets 2 out of the barrel 3 to be arranged on the launching platform 4 only by gravity. That is to say, the barrel 3 is placed on the upper face of the throwing plate 4 preferably substantially perpendicular thereto.
• the cylinder 3 is disposed substantially vertical with respect to the ground and the targets 2 are substantially parallel to the launching plate 4 and can be extracted from the barrel 3 by the lower end of it only by the gravity and weight of the target 2.
• the device according to the invention comprises means for retaining the next target 2.
• the holding means allow the target 2 the following is maintained in the barrel 3 and does not fall also by gravity at the launch pad 4.
• the launching plate 4 is positioned substantially horizontally during the loading of the target 2 on the launching plate 4.
• the device is configured to allow a launch of the target along a path comprising a component forming an angle of between 0 and 90 degrees and preferably between 0 and 30 degrees relative to the vertical.
• the device according to the invention advantageously comprises tilting means 6, 7, 8 for orienting the launching arm and preferably also the launching plate 4 so that it is positioned to form an angle of between 0 and 90 degrees. compared to the vertical.
• the system according to the invention comprises tilting means.
• the tilting means are fixed on the one hand on the base of the system and on the other hand to the device.
• the tilting means are coupled to the engine 9.
• the engine 9 is located in the lower part of the launching platform 4.
• the launching arm comprises a spring 10 arranged in the lower part of the launching plate 4 and is connected to the engine 9.
• the tilting means of the device according to the invention can be made by different elements. A preferred possibility is shown in all the figures.
• the engine 9 which is fixed in the lower part of the plateau 4 is connected to a coupling arm 8 itself connected by means of an off-axis joint 7 to the tilting arm 6 mounted on the fixed base of the carriage 1.
• the throwing plate 4 and the throwing arm are configured to print a gyro motion to the target 2. In this way the trajectory of the target is homogeneous.
• the throwing plate 4 is positioned substantially horizontal, the barrel 3 is positioned substantially vertical.
• the target is extracted from the barrel 3, preferably only for gravity.
• the target 2 is positioned on the launching platform 4.
• the engine 9 allows the tire 10 to be applied to the launching arm as well as the tilting of the launching plate 4 and the launch arm for the tilting means 6, 7, 8 of so as to position the throwing plate 4 and the throwing arm in a substantially vertical position or at least forming an angle of between 0 and 90 degrees relative to the vertical.
• the spring 10 of the throwing arm is unlocked thus causing the launch of the target 2 in front of the throwing arm.
• the motor 9 then allows the actuation of the tilting means so as to return the tray 4 and the barrel 3 in the initial position that is to say, the substantially horizontal launch tray 4 and the barrel 3 substantially vertical.
• the engine 9 allows the rotation of the barrel 3 and thus the fall of a new target 2 on the launch pad 4 a new target launch cycle can then be engaged.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=44314198

Family Applications (1)

Country Status (3)

Families Citing this family (9)

Citations (4)

Family Cites Families (12)

• 2010
  • 2010-08-27 EP EP10305919A patent/EP2381210A1/de not_active Withdrawn
• 2011
  • 2011-04-14 WO PCT/EP2011/055932 patent/WO2011131564A1/fr active Application Filing
  • 2011-04-18 US US13/088,565 patent/US20110260404A1/en not_active Abandoned

Patent Citations (4)

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