Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/14—Details of bows; Accessories for arc shooting
  • F41B5/1403—Details of bows
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/0005—Single stave recurve bows
  • F41B5/0026—Take-down or foldable bows
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/0005—Single stave recurve bows
  • F41B5/0026—Take-down or foldable bows
  • F41B5/0031—Handle or riser units
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/0094—Non-traditional bows, e.g. having hinged limbs or non-stave geometry
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/10—Compound bows
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/12—Crossbows
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/14—Details of bows; Accessories for arc shooting
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F41—WEAPONS
  • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
  • F41B5/00—Bows; Crossbows
  • F41B5/14—Details of bows; Accessories for arc shooting
  • F41B5/1442—Accessories for arc or bow shooting
  • F41B5/148—Accessories and tools for bow shooting not otherwise provided for

Definitions

• the present invention relates to an improved bow body and the relative bow comprising said body.
• a bow is an instrument formed of a grip, a central part (called riser) and two flexible half-bows (called limbs), each of which ends in a tip provided with a notch for housing the string.
• the bow is armed by means of a single string connected directly to the bow by means of two special housings. In use, the bow is held at the grip while the fingers of the other hand draw, hold and release the string.
• the bow is an instrument used to propel an arrow by transferring the energy stored therein following the tightening and subsequent release of the string tied to its ends. Modern sports provide for several types of bow.
• bare bow such type relates to bows with no sight or supplementary stabilising system. Only a rest for the arrow, an elastic button (called Berger button) and a system of weights stabilising the action at the moment of release, are allowed.
• the Olympic bow category also exists, comprising traditional bows divided into three parts (TD or takedown) , these being: a central ody (riser) and two limbs attached to the riser by means of skates or screws and joined to each other by a string. Numerous accessories may be added: sight, stabilisation system, arrow rest, clicker, elastic or Berger button, etc.
• modern bows are mainly composed of the following elements, or: two limbs representing the flexible and elastic part of the bow, a string, composed of a series of threads or strands twisted starting from the end so as to ensure robustness and elasticity, a central body or riser which constitutes the part of the bow held in the hand by means of the grip, for drawing.
• resistance this is understood as the capacity of the riser to resist the thrusts of flexion/compression/torsion/ etc generated by the release of the string and of the limbs before, during and after firing .
• the stability of the bow may be understood as the constancy and repeatability of the bow's performance both during the firing action and over time.
• risers have been made from composite (carbon) fibre having the advantage of being extremely light, and therefore more comfortable to use, but precisely for this reason having a low capacity to absorb vibrations and unwanted force momenta.
• risers from metal usually .from aluminium or other lightweight alloys.
• metal risers compared to those made from composite materials, are more resistant to the various force momenta created by firing, and therefore more stable: they absorb the vibrations much better but are also characterised by a greater weight and therefore less comfortable for the archer.
• the purpose of the present invention is to make a bow which overcomes the drawbacks mentioned with reference to the prior art.
• figure 1 is a perspective view, in an assembled configuration, of a bow according to one embodiment of the present invention.
• figure 2 is a perspective view, in separate parts, of a bow according to the present invention.
• figures 3-6 show side views of the bow body in figure 2, in an assembled configuration
• figure 7 is a perspective view, in an assembled configuration, of a bow body according to a further embodiment of the present invention.
• figures 8-9 show side views of the bow body in figure 7.
• reference numeral 4 globally denotes a bow comprising a bow body 8 having a frame provided with a grip 12, ergonomically shaped to favour its gripping by an archer.
• the bow body 8 is at least partially made from metallic material, preferably from a lightweight alloy, such as an aluminium alloy for example. It is also possible to use further materials, for example such as polymer materials.
• the frame of the bow body 8 comprises a first and a second arm 16, 20 which extend from said grip 12 towards a first and a second end 24, 28 respectively.
• Such ends 24, 28 are fitted with attachments 32 for associable limbs 36 suitable for supporting a string (not shown) .
• the end of a string for loading a relative arrow is attached to each limb 36 in the known manner.
• the frame is provided with at least one pocket or lightening 40 positioned on at least one of said arms 16, 20.
• a pocket or lightening 40 is generally understood to mean a notch, recess, opening, hole, a portion of material removed so as to reduce the resistant section of the frame and thereby the weight thereof.
• the bow body 8 comprises at least one insert 44 applied to close the pocket 40 so as to form a wind bracing for such pocket
• the insert 44 constitutes a stiffening of the frame at the point of the pocket.
• the inserts 44 are made from polymer, metal and/or carbon materials. Obviously alternative materials may also be used.
• the insert 44 is in the shape of a plug provided with a perimetral edge 48suitable for being inserted and positioned at least partially in contact with an inner lateral wall 52 of the pocket 40, wherein the perimetral edge 48 forms a snap- coupling with said inner lateral wall 52.
• the perimetral edge 48 is counter-shaped to the inner lateral wall 52 so as to form therewith a shaped coupling.
• such shaped coupling is forced, that is without clearance: this way the insert cannot move around inside the pocket 40, but is forced inside it so as to perform the stiffening and wind bracing function of the pocket 40.
• the insert 44 may be in the shape of a cheek at least partially overlapping the pocket 40, the cheek being attached to at least one stop wall 56 adjacent to the pocket 40 by means of the interposition of removable and/or movable attachment means 58, such as for example snap attachment mechanisms or screws.
• the attachment of the cheek to the stop wall 56 must be such as to prevent any movement of the cheek in relation to the pocket 40: in other words, the cheek must be rigidly attached to the frame so as to constitute a wind-bracing for the frame itself .
• the insert 44 in the shape of a cheek at partially overlapping the pocket 40, may also be attached to the stop wall 56 adjacent to the pocket 40 by means of gluing and/or welding.
• the insert 44 may in turn present lightening apertures.
• the pockets 40 or lightenings are seats or cavities made on the frame; preferably said pockets 40 are through apertures of the frame.
• the inserts 44 identify closed spaces with said pockets 40, and inside said closed spaces, vibration damper means 60 are housed.
• the inserts 44 constitute the bottom walls of closed spaces, defined by the pockets 40.
• the inserts 44 are made by means of closed hollow bodies 64 inside which the vibration damper means 60 are housed.
• the vibration damper means 60 are mechanical and/or electronic and/or hydraulic systems of inertial damping, so as to stabilise the bow 4 and dampen the vibrations of the same.
• vibration damper means 60 a damper fluid which fills the spaces made in the pockets 40 at least partially.
• the pocket or lightening 40 is positioned on a portion of the bow body 8 which supports the grip 12. In such configuration the inserts are also positioned at the grip of the bow body.
• the bow body according to the invention makes it possible to overcome the drawbacks presented in the prior art.
• the solution of the present invention makes it possible to obtain a bow body, and therefore a bow, having optimal characteristics of weight, resistance, stability and precision.
• the structure is in fact overall lightweight given that despite being made from alloy and not composite fibre, it employs pockets and lightenings which considerably reduce the overall weight.
• Such inserts therefore make the structure stronger limiting the vibrations and flexions thereof; in addition such inserts also act as dissipators or dampers of the vibrations .
• materials of various types may be inserted in the pockets so as to increase the weight in specific areas of the bow, and/or to vary its balance and stability.
• the bow according to the present invention is completely modifiable and can be customised as needed both in terms of damping of the vibrations and in terms of distribution of the weights.
• the inserts and damper means may in fact be applied, removed and replaced in a reversible and non-destructive manner.
• a further advantage of the present invention is given by the use of a damper and/or stabilisation system integrated in the riser and therefore not applied externally as happens in the solutions of the prior art.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Bridges Or Land Bridges (AREA)
• Stringed Musical Instruments (AREA)
• Processing Of Meat And Fish (AREA)
• Percussion Or Vibration Massage (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46000126

Family Applications (1)

Country Status (4)

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Citations (6)

Family Cites Families (19)

• 2012
  • 2012-02-24 IT IT000047A patent/ITPD20120047A1/it unknown
• 2013
  • 2013-01-16 WO PCT/IB2013/050382 patent/WO2013124747A1/en active Application Filing
  • 2013-01-16 US US14/377,694 patent/US20160025443A1/en not_active Abandoned
  • 2013-01-16 EP EP13710015.2A patent/EP2817580B1/de not_active Not-in-force

Patent Citations (6)

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