EP0353174B1 - Auseinandernehmbarer Sportbogen mit Schwingungsverhalten - Google Patents

Auseinandernehmbarer Sportbogen mit Schwingungsverhalten Download PDF

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Publication number
EP0353174B1
EP0353174B1 EP89440081A EP89440081A EP0353174B1 EP 0353174 B1 EP0353174 B1 EP 0353174B1 EP 89440081 A EP89440081 A EP 89440081A EP 89440081 A EP89440081 A EP 89440081A EP 0353174 B1 EP0353174 B1 EP 0353174B1
Authority
EP
European Patent Office
Prior art keywords
bow
screw
embedding
nut
sleeves
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.)
Expired - Lifetime
Application number
EP89440081A
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English (en)
French (fr)
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EP0353174A1 (de
Inventor
Jacques Martin
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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT89440081T priority Critical patent/ATE101434T1/de
Publication of EP0353174A1 publication Critical patent/EP0353174A1/de
Application granted granted Critical
Publication of EP0353174B1 publication Critical patent/EP0353174B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F41B5/143—Arrow rests or guides
    • 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

Definitions

  • the present invention relates to a removable competition arch with improved vibratory behavior.
  • the branches constitute the flexible parts of the bow which store the potential energy during the tensioning of the rope.
  • they In the removable arches, they have at one of their ends a fixing heel making it possible to mount them on the body of the arch.
  • these branches At the other end, these branches include a headstock and a groove intended for the placement of the rope.
  • stabilizers made of a barrel of variable length on which a counterweight of variable weight can slide, shaft which is screwed onto the body of the arch via a linkage damper. These stabilizers have the function of balancing the arc and partially absorbing vibrations.
  • the vibratory behavior of the arc proves to be complex and a source of drawbacks which can become major. Indeed, the vibrations generated by the release propagate in the various elements of the arc and are transmitted in a harmful way to the wrist of the user. They affect the accuracy of the shot and offset the arc at the end of the shot in a sometimes uncontrollable way.
  • the stabilizers commonly used cannot constitute a satisfactory solution because of their low efficiency in neutralizing vibrations.
  • the present invention aims to remedy all these drawbacks by proposing a removable competition arc with improved vibratory behavior compared to that of known arcs and which also comprises a spacer system allowing better adjustment of the boom.
  • the present invention thus relates to a removable competition arch according to claim 1.
  • the body of the arc according to the invention can be obtained by molding a metal alloy of the type used in aeronautics.
  • Maintaining each branch by embedding in a sleeve not using a technique using transverse fixing means, for example screwing, also promotes the damping of vibrations, as well as the absence of front stabilizers, the required perforations by the screw fixing systems of the branches and by the front stabilizers constituting vibration wells and causing concentrations of stresses which weaken the mechanical resistance of the arc while generating low frequency vibrations.
  • the semi-rigid receiving sleeves are made of carbon fibers and, more precisely, of a material obtained by weaving carbon threads. They have a thickness of a few millimeters and a length adapted to that of the parallelepipedic ends of the body of the arch.
  • the ends of the arch body are forced into the sleeves, which can be fixed thereon by gluing.
  • the corresponding flexible branch is then inserted into the sleeve where it can be placed isostatically by means of six suitably arranged points of a wear-resistant material, such as that known under the name of teflon.
  • the static and dynamic balancing of the arc body thanks to the massive ends, makes it possible to transform the low frequency vibrations of the natural modes of its elements into high frequency vibrations, which are strongly damped by the semi-rigid material in which are made the sleeves.
  • the arch body according to the invention exhibits a vibratory behavior very clearly superior to that of existing arch bodies, making in particular unnecessary the presence of frontal stabilizers, positioned at the two ends of the arch body. bow. This also results in an appreciable gain both in terms of the weight of the arc as its cost price.
  • the damping of the vibrations of the arch body can be further improved by the installation, on its handle, of an orthopedic overgrip made of a material of the expanded foam type.
  • Such an over-grip can be formed by cold injection of a foam of a synthetic resin in a deformable envelope fixed by bonding to the handle of the bow.
  • the damping can be further improved by a holding-wedging device providing a pressure contact against the large flank of the insert end of each flexible branch.
  • the body of the arch comprises a main part 1 whose axis of general longitudinal direction is rectilinear, extended by two ends 2 and 3 of parallelepipedal shape inclined relative to the general direction of the part main 1 and each having a shoulder 4 and 5 on each of which can be supported heel of one of the ends 6 and 7 of a flexible arc branch 8 and 9 removable from the main part 1.
  • a mounting sleeve 10 or 11 also of parallelepiped shape, is fitted onto each of the two ends 2 or 3 of the arch body. It is forced into it, leaving a free space in the interior volume of each sleeve, forming a housing, of shape and dimensions corresponding to those of each end 6 or 7 of the corresponding flexible branch 8 or 9.
  • the ends 2 and 3 of the body of the arch are connected to the central part by a curvature of the material 12 and 13 doubled on the rear face by two reinforcing ribs 14, 15 and 16, 17 making it possible to improve the rigidity and the stability of the arc.
  • a handle 18 surmounted by a window 19 in which a cylindrical bore 20 is provided for a spacer system 21.
  • Another hole 22 disposed immediately below the handle 18 is used for the establishment of a central stabilizer, not shown.
  • the spacer system 21 is shown, consisting of a hollow screw 23 mounted in the bore 20 formed in the arc body.
  • This screw 23 is made integral with the arc body by means of a part of a nut 24 mounted at one end of the screw 23 and bearing against one of the cheeks 25 of the arc body in a cylindrical counterbore 26 machined to one end of the bore 20 and on the other hand a lock nut 27 associated with an adjustment head 28 mounted on the other end of the screw 23 and bearing against the other face of the arc body.
  • the adjustment head 28 consists of a nut 29 mounted on the screw 23 and bearing against the lock nut 27 and of a cylindrical piece 30, secured to the nut 29 by means of a screw 31 and coming fit into a recess 32 formed in the screw 23 and terminated by a bottom 33 and a bore 34.
  • This cylindrical part 30 is used to compress a spring 35 housed in the recess 32 between the cylindrical part 30 and a press button 36 having a shoulder coming to rest against the bottom 33 of the screw 23.
  • the screwing of the nut 29 in the screw 23 causes the displacement of the part 30, which compresses the spring 35 and conversely, the unscrewing of the nut 29 causes the spring 35 to loosen.
  • the press button 36 is formed from two cylinders of different diameters. The narrowest cylinder passes through the bore 34 and its attached head 37 serves as a support for the arrow.
  • a wedging-holding device In order to further improve the vibratory behavior of the arc and to compensate for the wear of the embedded ends of the flexible branches in the end sleeves, there is provided according to the present invention, a wedging-holding device.
  • a device 38 for immobilization by holding-chocking using a cam 39, mounted integral with an axis 40 movable in rotation over a sufficient angular deflection amplitude making it possible to obtain good pressure tightening.
  • This device is conventionally mounted on one and the other of the transverse edges 41 of one and the other end 2 or 3 of the body of the arch each covered with a receiving sleeve 10 or 11 of a end 6 or 7 to be maintained with a flexible arc branch 8 or 9.
  • the axis 40 is carried by a receiving part, socket or the like, 41 secured to the body of the arc, or comes to rest in a tapped hole. Any other assembly is possible.
  • the cam pivots either around the axis 40, or with this axis.
  • the part 39 acting as a cam has a curvilinear profile 42 slightly curved over a part of its contour 43, so as to bear through an area 44 of larger surface, on one of the large flanks 45 facing the embedded end of each flexible branch 8 or 9.
  • This cam 39 is made of semi-hard synthetic material, for example nylon, polyamide or polyester, so as to take advantage of the slight elastic crushing of the material against the harder face of the flexible branch of the arch.
  • the cam pivotally mounted relative to the body of the arc is operated using a key or any other tool coming to get caught in its head in order to pivot either the cam or its axis 40 which can be made integral with the cam.
  • the body of the cam preferably has a projection 46 situated opposite its zone of contact with the corresponding flexible branch in order to be able to maneuver it more easily by hand.
  • the immobilization device according to the invention allows, thanks to the pressure contact, to obtain a mechanical clamping for the mechanical maintenance of the branches and the additional damping of the vibrations coming from the shooting.
  • the ends of the arch body can in particular have a shape other than a parallelepiped, for example in the trunk of a pyramid, and the fixing sleeves have the corresponding suitable shape.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Stringed Musical Instruments (AREA)
  • Rehabilitation Tools (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Harvester Elements (AREA)
  • Shovels (AREA)
  • Dry Shavers And Clippers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Claims (10)

  1. Sportbogen, der einerseits einen durch Gießen hergestellten Bogenkörper mit einem Griff (18), andererseits einen Hauptteil (1), dessen Nullachse geradlinig ist, aufweist, wobei zwei flexible Arme (8, 9) fest an den Enden des Bogenkörpers anbringbar sind, dadurch gekennzeichnet, daß
    - das Hauptteil (1) des Bogenkörpers sich an jeder Seite zu einer durch Rippen (14, 15 und 16, 17) verstärkten Platine erweitert und die Platinen durch im wesentlichen in Form eines Parallelepipeds ausgebildete Enden (2, 3) begrenzt sind, die gegenüber dem Hauptteil (1) geneigt sind und keine weitere Perforation aufweisen;
    - halbstarre Lagerhülsen (10, 11) kraftschlüssig an den Enden (2, 3) des Bogenkörpers angebracht sind und eine Lagerausnehmung in Form eines hohlen Parallelepipeds aufweisen;
    - die flexiblen Arme (8, 9) jeweils ein Ende (6, 7) in Form eines Parallelepipeds aufweisen, das an die Form der Lagerausnehmung derart angepaßt ist, daß es in die durch die Hülsen (10, 11) und die Enden (2, 3) des Bogenkörpers begrenzte Aufnahme einfügbar ist;
    - der Bogen ferner eine Verriegelungseinrichtung (38) für jedes eingefügte Ende (6, 7) der flexiblen Arme (8, 9) und einen Abstandshalter (21) aufweist, dar in eine in ein Fenster (19) des Bogenkörpers eingearbeitets Bohrung (20) eingesetzt ist und die Einstellung der Position des Pfeils horizontal und vertikal gestattet.
  2. Sportbogen nach Anspruch 1, dadurch gekennzeichnet, daß die Lagerhülsen (10, 11) aus Kohlefaser bestehen.
  3. Sportbogen nach Anspruch 2, dadurch gekennzeichnet, daß die Lagerhülsen (10, 11) aus einem Kohlefasergewebe bestehen.
  4. Sportbogen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Griff (18) mit einem orthopädischen Überzuggriff aus Schaumstoff überzogen ist.
  5. Sportbogen nach Anspruch 4, dadurch gekennzeichnet, daß der orthopädische Überzuggriff durch kaltes Einspritzen eines Kunstharzschaumes in eine formbare Hülle, die durch Kleben an dem Griff des Bogens restgelegt ist, hergestellt ist.
  6. Sportbogen nach einen der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Abstandshalter (21) eine in der Bohrung (20) des Fensters (19) angeordnete Hohlschraube (23) aufweist, die einerseits über eine Mutter (24), die mit dem einen Ende der Schraube verbunden ist und an einer Seite (25) des Bogenkörpers in einer zylindrischen Senkung (26) an dem einen Ende der Bohrung anliegt, andererseits über eine Kontermutter (27), die einem an dem anderen Ende der Hohlschraube (23) angeordneten Steuerkopf (28) zugeordnet ist und an der anderen Seite des Bogenkörpers anliegt, mit dem Bogenkörper verbunden ist, und daß der Steuerkopf (28) aus einer auf der Hohlschraube (23) angeordneten und der Kontermutter (27) anliegenden Mutter (29) und einem Zylinderstück (30) besteht, das mit der Mutter (29) über eine Schraube (31) verbunden und in eine durch einen Boden (33) mit einer Bohrung (34) begrenzte Ausnehmung (32) der Hohlschraube (23) eingesetzt ist und das dazu dient, eine gleichfalls in der Ausnehmung (32) befindliche Feder (35) zu spannen, die zwischen dem Zylinderstück (30) und einem mit einer Schulter dem Boden (33) der Hohlschraube (23) anliegenden Druckknopf (36) angeordnet ist.
  7. Sportbogen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Körper durch Gießen einer aus der Luftfahrt bekannten Metallegierung gefertigt ist.
  8. Sportbogen nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Verriegelungseinrichtung (38) für das gelagerte Ende (6, 7) jedes Arms (8, 9) an der Stirnseite (41) eines jeden Endes (2, 3) des Bogenkörpers festgelegt ist und ein Klemmteil aufweist, das zwischen einer umgelegten Ruhestellung und einer Arbeitsstellung, in der es gegen die benachbarte Seite des gelagerten Endes des zugehörigen Arms Druckkontakt ausübt, beweglich ist.
  9. Sportbogen nach Anspruch 8, dadurch gekennzeichnet, daß das Klemmteil eine auf einer Achse (40) senkrecht zur benachbarten Stirnseite des Bogenkörpers drehbewegliche Kurve (39) ist.
  10. Sportbogen nach Anspruch 9, dadurch gekennzeichnet, daß die Kurve (39) auf wenigstens einem Teil ihres Profils (42) eine schwach gekrümmte Kontur (43) aufweist.
EP89440081A 1988-07-25 1989-07-25 Auseinandernehmbarer Sportbogen mit Schwingungsverhalten Expired - Lifetime EP0353174B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89440081T ATE101434T1 (de) 1988-07-25 1989-07-25 Auseinandernehmbarer sportbogen mit schwingungsverhalten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810170A FR2634547B1 (fr) 1988-07-25 1988-07-25 Arc de competition demontable
FR8810170 1988-07-25

Publications (2)

Publication Number Publication Date
EP0353174A1 EP0353174A1 (de) 1990-01-31
EP0353174B1 true EP0353174B1 (de) 1994-02-09

Family

ID=9368863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89440081A Expired - Lifetime EP0353174B1 (de) 1988-07-25 1989-07-25 Auseinandernehmbarer Sportbogen mit Schwingungsverhalten

Country Status (6)

Country Link
US (1) US5025774A (de)
EP (1) EP0353174B1 (de)
AT (1) ATE101434T1 (de)
DE (1) DE68912986T2 (de)
ES (1) ES2050837T3 (de)
FR (1) FR2634547B1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5464001A (en) * 1993-12-17 1995-11-07 Peck; Kenneth Adjustable compound bow
US5570675A (en) * 1994-04-18 1996-11-05 Treadway; Michael J. Take-down archery bow
DE4432500A1 (de) * 1994-09-13 1996-03-14 Siegfried Dipl Ing Rudolph Dynamische Wurfarmlagerung mit punktförmiger, variabler Abstützung und Schutz gegen Spritzwasser, für Sportbögen
US5546923A (en) * 1994-10-27 1996-08-20 Duncan; Douglas J. Take-down archery bow
US5697355A (en) * 1994-12-12 1997-12-16 Schaffer; John P. Cable adjuster and limb pocket assembly for compound bow
FR2745373B1 (fr) * 1996-02-23 1998-05-15 Decathlon Sa Corps pour arc constitue de deux pieces distinctes, et arc comportant un tel corps
US6276351B1 (en) 2000-04-28 2001-08-21 Michael J. Treadway Take-down archery bow
US6635059B2 (en) * 2001-01-03 2003-10-21 Bernard L. Randall Cannulated locking screw system especially for transiliac implant
US8393982B2 (en) * 2009-09-16 2013-03-12 Michael D. Ferguson Miniature locator device for use with hunting arrows
US8453635B1 (en) 2009-10-30 2013-06-04 Mcp Ip, Llc Bow limb retaining system
US9341430B2 (en) 2012-09-10 2016-05-17 Mcp Ip. Llc Self-aligning crossbow interface
USD783108S1 (en) 2015-10-16 2017-04-04 Mcp Ip, Llc Archery limb cup
US10184750B2 (en) 2015-11-16 2019-01-22 Mcp Ip, Llc Limb cup with axle
US10969210B2 (en) 2018-04-25 2021-04-06 Pro-Tracker Ip Holding, Llc System and method for adjusting the trajectory of an arrow
US11686563B2 (en) 2019-02-20 2023-06-27 Pro-Tracker Ip Holding, Llc System and method for adjusting the trajectory of an arrow
CN113340151B (zh) * 2021-07-19 2023-07-21 丘伟豪 一种可更换配重的弓把及弓

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118106A (en) * 1916-05-29 1919-11-13 Tage Edvard Blum An Improved Device for Holding or Gripping Plates or the like.
US3326200A (en) * 1965-09-20 1967-06-20 Archery Res Inc Take-apart archery bow
JPS4844358B1 (de) * 1970-12-31 1973-12-24
US3850156A (en) * 1973-06-01 1974-11-26 F Eicholtz Composite archery bow
DE2346157A1 (de) * 1973-09-13 1975-03-20 Krust Richard Waffen-bogen
US4119078A (en) * 1976-07-19 1978-10-10 Wilson Jack K Adjustable type arrow rest for a bow
JPS53114300A (en) * 1977-03-16 1978-10-05 Nippon Gakki Seizo Kk Bow
NL7707312A (nl) * 1977-07-01 1979-01-03 Ir Gerard Johan Scholten Heems Handboog.
US4175536A (en) * 1977-10-03 1979-11-27 Carella Richard F Combination of a bow and a power handle
US4170980A (en) * 1978-03-24 1979-10-16 Killian Gerald I Archery bow arrow rest
US4338909A (en) * 1980-05-07 1982-07-13 Plummer Marvin E Archery bow construction
GB2081367B (en) * 1980-08-06 1985-05-22 Champion Conveyor Components Clamping devices
EP0081277B1 (de) * 1981-08-05 1987-11-19 James Pert Verbinder mit Klemmittel
JPS5821799U (ja) * 1981-08-06 1983-02-10 ヤマハ株式会社 洋弓
US4542731A (en) * 1983-04-04 1985-09-24 Hoyt/Easton Bow with vertically and horizontally adjustable arrow support
US4881515A (en) * 1983-04-05 1989-11-21 Simo Miroslav A Laterally adjustable replaceable arrow rest
FR2559888A1 (fr) * 1984-02-21 1985-08-23 Valette Ind Corps d'arc perfectionne permettant de realiser des arcs aussi bien pour droitier que pour gaucher
US4592332A (en) * 1984-04-23 1986-06-03 Topping Donald G Arrow rest device
US4672943A (en) * 1984-06-11 1987-06-16 Bozek John W Archery bow with draw force multiplying attachments
FR2580795B1 (fr) * 1985-04-19 1990-08-03 Schnoebelen Andre Arc
US4648376A (en) * 1985-06-28 1987-03-10 Saunders Charles A Self cleaning pressure button
US4660538A (en) * 1985-12-13 1987-04-28 Burgard Francis A Inertial stabilizer for archery bow
US4729256A (en) * 1986-01-10 1988-03-08 Kelson Arnold A Handlebar grip and assembling facilitating strip
US4878397A (en) * 1987-01-09 1989-11-07 Lennon Dan C Bicycle, handlebar and adapter system
US4867129A (en) * 1988-12-13 1989-09-19 Scherz Patrick L Machined archer's rest

Also Published As

Publication number Publication date
FR2634547B1 (fr) 1993-09-24
FR2634547A1 (fr) 1990-01-26
US5025774A (en) 1991-06-25
DE68912986D1 (de) 1994-03-24
ES2050837T3 (es) 1994-06-01
ATE101434T1 (de) 1994-02-15
DE68912986T2 (de) 1994-08-25
EP0353174A1 (de) 1990-01-31

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