|
(11) | EP 2 831 532 B1 |
| (12) | EUROPEAN PATENT SPECIFICATION |
|
|
| (54) |
TOY LAUNCHER WITH SAFETY PROJECTILES SPIELZEUGWERFER MIT SICHERHEITSGESCHOSSEN JOUET LANCEUR AVEC PROJECTILES DE SÉCURITÉ |
|
|
|||||||||||||||||||||||||||||||
| Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). |
TECHNICAL FIELD OF THE INVENTION
[0001] In general, the present invention relates to toy launchers, such as slingshots that are used to launch a toy projectile into flight.
BACKGROUND ART
[0002] Slingshots and similar launchers that are designed for child's play have existed throughout recorded history. In the modern era, toy slingshots typically have a plastic molded handle and an elastic string. A pocket is present on the elastic string. Objects are launched by placing the object in the pocket, pulling the pocket back against the bias of the elastic string, and releasing the pocket.
[0003] Due to the nature of its design, any slingshot, including toy slingshots, are capable of launching any object that is placed in the pocket. Although a toy slingshot may be sold with safety projectiles, a child can easily launch a small stone with equal ease. It will therefore be understood that even toy slingshots can cause injury if used in an unwise fashion.
[0004] Another problem with toy slingshots is their failure mode. If a slingshot is drawn beyond its limit, then the string of the slingshot may break. Depending upon where the breakage occurs, the broken string may fly back toward the person holding the slingshot as the stored energy is accidentally released. Since a slingshot is often held in front of the face, the whip-back of a broken string can easily cause injury to the eye.
[0005] A need therefore exists for a toy slingshot design that enables the toy slingshot only to shoot the safety projectiles that are packaged with the toy slingshot. Furthermore, a need exists for a slingshot design that eliminates the dangers of string failure to a child who may overdraw the slingshot. This need is met by the present invention as described and claimed below.
[0006] US20120160224 discloses a toy projectile launching system that launches a toy projectile. The launcher has a handle. The handle is offset between two supports. A first arm element is coupled to the first support. A first elastic loop is anchored to the first arm element. The first elastic loop has a looped section that extends into an open area. A second arm element is coupled to the second support. A second elastic loop is anchored to the second arm element. The second elastic loop has a looped section that extends into the open area. The looped sections of the first elastic loop and the second elastic loop are spaced to receive and engage opposing hook elements on the toy projectile when the toy projectile is manually drawn through the open area.
DISCLOSURE OF THE INVENTION
[0007] The present invention provides a toy projectile launcher and safety projectile combination; and a projectile launcher assembly as claimed in the appended claims.
[0008] The present invention is a toy projectile launcher and safety projectile combination, wherein the launcher sets the safety projectile into flight. The toy launcher can only launch the safety projectile. The toy launcher has a body with a first arm, a second arm, and a central region that separates the first arm and the second arm. Both the first arm and the second arm contain spring-loaded joints that enable parts of both arms to twist and reorient when stressed.
[0009] A first elastomeric element extends laterally from the first arm section into the central region. The first elastomeric element has a first free end that is supported as a cantilever. Likewise, a second elastomeric element extends laterally from the second arm section into the central region. The second elastomeric element has a second free end that is also supported as a cantilever.
[0010] A safely projectile is provided. The safety projectile has a first slotted channel that is accessible through a first open end and a second slotted channel that is accessible through a second open end. The safety projectile temporarily attaches to the first elastomeric element and the second elastomeric element during launching by having the first slotted channel receive the first free end of the first elastomeric element and having the second slotted channel receive the second free end of the second elastomeric element.
[0011] The safety projectile is then pulled back and released. The needed engagement of the two slotted channels of the projectile with the two elastomeric elements of the slingshot ensure that only authorized, safety projectiles can be launched.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] For a better understanding of the present invention, reference is made to the following description of am exemplary embodiment thereof, considered in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective view of an exemplary embodiment of a toy slingshot launcher and safety projectile in combination;
FIG. 2 is an exploded view of the embodiment of Fig. 1;
FIG. 3 is a cross-sectional view of the safety projectile of Fig. 1, viewed along section line 3-3 and shown while engaging the elastomeric elements of the slingshot launcher; and
FIG. 4 shows the slingshot launcher loaded and drawn with the safety projectile.
DETAILED DESCRIPTION OF BEST MODE FOR CARRYING OUT THE INVENTION
[0013] Although the present invention toy launching system can be embodied in many different projectile configurations, such as a box, a crossbow, or a pistol, the exemplary embodiment selected shows a slingshot. The exemplary embodiment has been selected in order to set forth one of the best modes contemplated for the invention. The illustrated embodiment, however, is merely exemplary and should not be considered a limitation when interpreting the scope of the appended claims.
[0014] Referring to Fig. 1 in conjunction with Fig. 2, an exemplary embodiment of a slingshot launcher 10 is shown. The slingshot launcher 10 has a body 12 that is generally Y-shaped. The body 12 includes a handle 14 and two arm assemblies 16, 18 that are spaced a predetermined distance apart by a central region 17. Although the body 12 can be fabricated from wood or metal, for the mass manufacture of toys, molded plastic is preferred. To reduce mass and increase strength, the arm assemblies 16, 18 and handle 14 may be molded with reinforcement ribs 19. Furthermore, projections 20 extend outwardly from the body 12, for a purpose that will be later described.
[0015] Each of the arm assemblies 16, 18 include a lower static base 21 and an upper moving post 23. The static bases 21 of both arm assemblies 16, 18 are molded together as a single support piece 25. The support piece 25 is attached to the handle 14. Each moving post 23 is attached to the support piece 25 at a twist joint 31. A pivot pin 33 extends downwardly from the bottom of each of the moving posts 23. The pivot pins 33 engage torsion springs 35 that are mounted inside the static base 21. The torsion springs 35 apply a spring bias to the pivot pins 33 that bias the moving posts 23 into the unloaded orientation shown in Fig. 1. However, each of the moving posts 23 can be rotated in the directions of arrows 37, if they are twisted with a force that overcomes the bias of the torsion springs 35. The purpose of the twist joints 31 is later explained in detail.
[0016] The top of each moving post 23 terminates with an enlarged relief 22. The purpose of the large reliefs 22 is later explained in detail.
[0017] Two elastomeric elements 24 are provided. The elastomeric elements 24 can be solid strands of elastomeric material or segments of elastomeric tubing. Each of the elastomeric elements 24 extends straight between an anchor end 26 and a free end 28. Both the anchor end 26 and the free end 28 are terminated with an enlarged bead 27, 29 that is permanently affixed to the elastomeric element 24. The beads 27, 29 are preferably made of a hard plastic so that the beads 27, 29 do not deform when stressed by the operation of the slingshot launcher 10. Conversely, the elastomeric elements 24 are highly elastomeric and are capable of elastically expanding to at least three times their original length without tearing or breaking when stressed.
[0018] A segment of reinforcement tubing 30 is provided around each of the elastomeric elements 24. The reinforcement tubing 30 is thicker, tougher, and less elastic than the elastomeric elements 24. Although the reinforcement tubing 30 lay around sections of the elastomeric elements 24, the reinforcement tubing 30 is not bonded or otherwise attached to the material of the elastomeric elements 24.
[0019] An anchor port 32 is formed in each of the arms 16, 18 of the slingshot body 12 below the enlarged reliefs 22. The anchor ports 32 are sized to receive the anchor bead 27 at the anchor end 26 of the elastomeric elements 24. When the anchor bead 27 enters the anchor port 32, the anchor bead 27 becomes wedged in place and cannot move. This connects the anchor end 26 of each of the elastomeric elements 24 to the arms 16, 18 of the slingshot body 12.
[0020] Two plug elements 34, 36 are provided. Each of the plug elements 34, 36 defines a bottom slot 38 that turns ninety degrees. The plug elements 34, 36 pass into the enlarged reliefs 22 at the top of the arms 16, 18. The elastomeric elements 24 pass through the slots 38 in the plugs 34, 36. Consequently, the elastomeric elements 24 are bent ninety degrees as they extend through the bottom slot 38. As a result, the free end 28 of each elastomeric element 24 extends horizontally toward each other in the central region 17. As a result, both elastomeric elements 24 have free ends 28 that extend toward each other and terminate as cantilevered structures. The free end beads 29 at the ends of the elastomeric elements 24 are disposed a short distance apart.
[0021] The plug elements 34, 36 also engage one end of each segment of the reinforcement tubing 30. The segments of reinforcement tubing 30 also extend horizontally toward each other as cantilevered structures. The support provided by the reinforcement tubing 30 helps prevent the elastomeric elements 24 from sagging under the force of gravity.
[0022] The plug elements 34, 36 are attached to the enlarged reliefs 22 using either adhesive and/or a mechanical fastener, such as the shown screw 39.
[0023] Referring to Fig. 2 in conjunction with Fig. 3, it can be seen that safety projectiles 40 are provided. Each safety projectile 40 is made from a foam rubber or similar low-density polymer formulation. In the shown embodiment, the safety projectiles 40 are spherical. However, it should be understood that other shapes, such as airplane shapes and rocket shapes can be used.
[0024] Slotted channels 42 are formed in the safety projectiles 40. Each slotted channel 42 has only one open end 44. The open ends 44 of the two slotted channels 42 are spaced a predetermined distance apart. The distance between the open ends 44 of the slotted channels 42 are exactly the same as the distance between the beads 29 at the free ends 28 of the elastomeric elements 24. It will therefore be understood that the beads 29 at the free ends 28 of the elastomeric elements 24 can easily pass into the slotted channels 42 of the safety projectile 40 through the open ends 44 of the slotted channels 42.
[0025] Each of the slotted channels 42 are lined with a slotted hard plastic insert 46. The presence of the hard plastic insert 46 prevents the hard free end beads 29 of the elastomeric elements 24 from being pulled out of the slotted channel 42 through the soft material of the safety projectile 40.
[0026] Referring to Fig. 4 in conjunction with Fig. 2 and Fig. 3, it will be understood that in order to utilize the slingshot launcher 10, a person takes the slingshot launcher 10 and maneuvers the safety projectile 40 until the beads 29 at the free ends 28 of the elastomeric elements 24 enter the open ends 44 of the slotted channel 42 on the safety projectile 40. This interconnects the safety projectile 40 with the elastomeric elements 24 of the slingshot launcher 10. The safety projectile 40 is then manually grasped and pulled rearwardly in the horizontal plane. This causes the elastomeric elements 24 to stretch and store energy. This action also applies a torque to the moving posts 23 of the arm assemblies that acts in opposition to the bias of the torsion springs 35.
[0027] As the torque applied by the stretching of the elastomeric elements 24 overcomes the bias of the torsion springs 35, the moving posts 23 begin to turn into the orientation shown in Fig. 4. This has two effects. First, the twisting of the moving posts 23 adds the power of the torsion springs 35 to the power of the stretched elastomeric elements 24. This increases the launching power of the overall slingshot assembly 10 without increasing the stresses experienced by the elastomeric elements 24. Second, the twisting of the moving posts 23 reorients the elastomeric elements 24 so that the elastomeric elements 24 better face the direction in which they are stretched. This prevents the elastomeric elements 24 from having to experience any sharp bends as they are stretched. This greatly increases the amount of energy that can be stored in the elastomeric elements 24 without causing damage or wear to those elastomeric elements 24.
[0028] When the safety projectile 40 is released, the spring energy stored in the elastomeric elements 24 and the torsion springs 35 is simultaneously released. The slingshot launcher assembly 10 suddenly changes from the loaded configuration of Fig. 4 back to the unloaded configuration of Fig. 1. The result is that the safety projectile 40 is accelerated forward. Once the safety projectile 40 passes between the arm assemblies 16, 18 of the slingshot body 12, the free end beads 28 slide rearwardly in the slotted channels 42 and exit the slotted channels 42 through their open ends 44. At this moment, the safety projectile 40 disengages from the elastomeric elements 24 and the safety projectile 40 flies freely forward.
[0029] It will be understood that the elastomeric elements 24 of the slingshot launcher 10 can only engage a projectile that has the slotted channels 42 that are sized and spaced to receive the two beads 29 at the two free ends 28 of the elastomeric elements 24. Consequently, the present invention slingshot launcher 10 cannot launch a rock, marble, gumball, or anything else that is not specifically manufactured with the necessary slotted channels. A child having possession of the slingshot launcher 10 will therefore only be able to use the slingshot launcher 10 to launch the safety projectiles 40 provided with the slingshot launcher 10.
[0030] When the elastomeric elements 24 are stretched, they are most vulnerable to breakage. If one of the elastomeric elements 24 breaks, it is highly improbable that the second elastomeric element 24 would break at that precise moment. The unbroken elastomeric element 24 will, therefore, remain intact and will absorb much of the energy released by the broken elastomeric element. This prevents a broken elastomeric element from whipping back toward a user's face.
[0031] The slotted channels 42 within the safety projectile 40 have the same diameter as the projections 20 that extend outwardly from the slingshot body 12. This enables a projection 20 to pass into and engage the safety projectiles 40 with an interference fit. As a result, safety projectiles 40 that are not being used can be attached to the body 12 of the slingshot launcher 10 and held at the ready.
[0032] It will be understood that the embodiment of the present invention that is illustrated and described is merely exemplary and that a person skilled in the art can make many variations to that embodiment. For instance, the bow structure can have many different ornamental shapes. Likewise, the arrow projectiles can be configured as airplanes, rocket ships or any other flying projectile. All such embodiments must, however, fall within the scope of the present invention as defined by the claims.
a body (12) having a first arm section (16) and a second arm section (18), wherein said first arm section (16) and said second arm section (18) are separated by an open central region (17);
a first elastomeric element (24) connected to said first arm section (16) and extending laterally from said first arm section (16) into said central region (17), wherein said first elastomeric element (24) has a first free end (28) that extends into said open central region (17);
a second elastomeric element (24) connected to said second arm section (18) and extending laterally from said second arm section (18) into said central region (17), wherein said second elastomeric element (24) has a second free end (28) that extends into said open central region (17), and wherein the free ends (28) of said first and second elastomeric elements (24) extend toward each other and terminate as cantilevered structures within said open central region (17);
a safely projectile (40) having a first slotted channel (42) that is accessible through a first open end (44) and a second slotted channel (42) that is accessible through a second open end (44), wherein said safety projectile (40) temporarily attaches to both said first elastomeric element (24) and said second elastomeric element (24) during launching by having said first slotted channel (42) receive said first free end (28) of said first elastomeric element (24) and having said second slotted channel (42) receive said second free end (28) of said second elastomeric element (24);
joints (31) in said first arm section (16) and said second arm section (18) that enable sections (23) of said first arm section (16) and said second arm section (18) to rotate as said first elastomeric element (24) and said second elastomeric element (24) are stretched when engaged with said safety projectile (40),
springs (35) for biasing said joints (31) into preset configurations, and
further including a first hard bead (29) affixed to said first free end (28) of said first elastomeric element (24) and a second hard bead (29) affixed to said second free end (28) of said second elastomeric element (24).
a body (12) having a first arm section (16) and a second arm section (18), wherein an open central region (17) separates said first arm section (16) and said second arm section (18);
a first elastomeric element (24) connected to said first arm section (16) and extending laterally from said first arm (16) into said central region (17), wherein said first elastomeric element (24) has a first free end (28) that terminates with an enlarged head that extends into said open central region (17); and
a second elastomeric element (24) connected to said second arm section (18) and extending laterally from said second arm (18) into said central region (17), wherein said second elastomeric element (24) has a second free end (28) that terminates with a second enlarged head (29) that extends into said open central region (17), wherein the free ends (28) of said first and second elastomeric elements (24) extend toward each other and terminate as cantilevered structures within said open central region (17);
joints (31) in said first arm section (16) and said second arm section (18) that enable sections (23) of said first arm section (16) and said second arm section (18) to rotate as said first elastomeric element (24) and said second elastomeric element (24) are stretched when engaged with a safety projectile (40),
springs (35) for biasing said joints (31) into preset configurations, and
said enlarged head (29) on said first elastomeric element (24) is a first hard bead (29) affixed to said first free end (28) of said first elastomeric element (24), and said enlarged head (29) on said second elastomeric element (24) is a second hard bead (29) affixed to said second free end (20) of said second elastomeric element (24).
einen Körper (12), der einen ersten Armabschnitt (16) und einen zweiten Armabschnitt (18) aufweist, wobei der erste Armabschnitt (16) und der zweite Armabschnitt (18) durch einen offenen Mittelbereich (17) getrennt sind;
ein erstes elastomeres Element (24), das mit dem ersten Armabschnitt (16) verbunden ist und sich lateral von dem ersten Armabschnitt (16) in den Mittelbereich (17) erstreckt, wobei das erste elastomere Element (24) ein erstes freies Ende (28) aufweist, das sich in den offenen Mittelbereich (17) erstreckt;
ein zweites elastomeres Element (24), das mit dem zweiten Armabschnitt (18) verbunden ist und sich lateral von dem zweiten Armabschnitt (18) in den Mittelbereich (17) erstreckt, wobei das zweite elastomere Element (24) ein zweites freies Ende (28) aufweist, das sich in den offenen Mittelbereich (17) erstreckt, und wobei sich die freien Enden (28) des ersten und zweiten elastomeren Elements (24) aufeinander zu erstrecken und als freitragende Strukturen innerhalb des offenen Mittelbereichs (17) enden;
ein Sicherheitsgeschoss (40), das einen ersten geschlitzten Kanal (42), der durch ein erstes offenes Ende (44) zugänglich ist, und einen zweiten geschlitzten Kanal (42) aufweist, der durch ein zweites offenes Ende (44) zugänglich ist, wobei das Sicherheitsgeschoss (40) während des Schleuderns temporär an sowohl dem ersten elastomeren Element (24) als auch dem zweiten elastomeren Element (24) befestigt wird, indem veranlasst wird, dass der erste geschlitzte Kanal (42) das erste freie Ende (28) des ersten elastomeren Elements (24) aufnimmt, und veranlasst wird, dass der zweite geschlitzte Kanal (42) das zweite freie Ende (28) des zweiten elastomeren Elements (24) aufnimmt;
Verbindungselemente (31) in dem ersten Armabschnitt (16) und dem zweiten Armabschnitt (18), die es Abschnitten (23) des ersten Armabschnitts (16) und des zweiten Armabschnitts (18) ermöglichen, sich zu drehen, wenn das erste elastomere Element (24) und das zweite elastomere Element (24) gedehnt werden, wenn sie mit dem Sicherheitsgeschoss (40) in Eingriff sind,
Federn (35) zur Vorspannung der Verbindungselemente (31) in voreingestellte Konfigurationen, und
weiterhin umfassend ein erstes hartes Kügelchen (29), das an dem ersten freien Ende (28) des ersten elastomeren Elements (24) angebracht ist, und ein zweites hartes Kügelchen (29), das an dem zweiten freien Ende (28) des zweiten elastomeren Elements (24) angebracht ist.
einen Körper (12), der einen ersten Armabschnitt (16) und einen zweiten Armabschnitt (18) aufweist, wobei ein offener Mittelbereich (17) den ersten Armabschnitt (16) und den zweiten Armabschnitt (18) voneinander trennt;
ein erstes elastomeres Element (24), das mit dem ersten Armabschnitt (16) verbunden ist und sich lateral von dem ersten Armabschnitt (16) in den Mittelbereich (17) erstreckt, wobei das erste elastomere Element (24) ein erstes freies Ende (28) aufweist, das mit einem vergrößerten Kopf endet, der sich in den offenen Mittelbereich (17) erstreckt; und
ein zweites elastomeres Element (24), das mit dem zweiten Armabschnitt (18) verbunden ist und sich lateral von dem zweiten Arm (18) in den Mittelbereich (17) erstreckt, wobei das zweite elastomere Element (24) ein zweites freies Ende (28) aufweist, das mit einem zweiten vergrößerten Kopf (29) endet, der sich in den offenen Mittelbereich (17) erstreckt, wobei sich die freien Enden (28) des ersten und zweiten elastomeren Elements (24) aufeinander zu erstrecken und als freitragende Strukturen innerhalb des offenen Mittelbereichs (17) enden;
Verbindungselemente (31) in dem ersten Armabschnitt (16) und dem zweiten Armabschnitt (18), die es Abschnitten (23) des ersten Armabschnitts (16) und des zweiten Armabschnitts (18) ermöglichen, sich zu drehen, wenn das erste elastomere Element (24) und das zweite elastomere Element (24) gedehnt werden, wenn sie mit einem Sicherheitsgeschoss (40) in Eingriff sind,
Federn (35) zur Vorspannung der Verbindungselemente (31) in voreingestellte Konfigurationen, und
wobei der vergrößerte Kopf (29) an dem ersten elastomeren Element (24) ein erstes hartes Kügelchen (29) ist, das an dem ersten freien Ende (28) des ersten elastomeren Elements (24) angebracht ist, und der vergrößerte Kopf (29) an dem zweiten elastomeren Element (24) ein zweites hartes Kügelchen (29) ist, das an dem zweiten freien Ende (20) des zweiten elastomeren Elements (24) angebracht ist.
un corps (12) comportant une première section de bras (16) et une seconde section de bras (18), dans laquelle ladite première section de bras (16) et ladite seconde section de bras (18) sont séparées par une région centrale ouverte (17) ;
un premier élément en élastomère (24) relié à ladite première section de bras (16) et s'étendant latéralement à partir de ladite première section de bras (16) dans ladite région centrale (17), dans laquelle ledit premier élément en élastomère (24) comporte une première extrémité libre (28) qui s'étend dans ladite région centrale ouverte (17) ;
un second élément en élastomère (24) relié à ladite seconde section de bras (18) et s'étendant latéralement à partir de ladite seconde section de bras (18) dans ladite région centrale (17), dans laquelle ledit second élément en élastomère (24) comporte une seconde extrémité libre (28) qui s'étend dans ladite région centrale ouverte (17), et dans laquelle les extrémités libres (28) desdits premiers et seconds éléments en élastomère (24) s'étendent l'une vers l'autre et se terminent sous forme de structures en porte-à-faux à l'intérieur de ladite région centrale ouverte (17) ;
un projectile sécurisé (40) comportant un premier canal fendu (42) qui est accessible par une première extrémité ouverte (44) et un second canal fendu (42) qui est accessible par une seconde extrémité ouverte (44), dans laquelle ledit projectile sécurisé (40) se fixe temporairement simultanément audit premier élément en élastomère (24) et audit second élément en élastomère (24) pendant le lancement, ledit premier canal fendu (42) recevant ladite première extrémité libre (28) dudit premier élément en élastomère (24) et ledit second canal fendu (42) recevant ladite seconde extrémité libre (28) dudit second élément en élastomère (24) ;
des articulations (31) de ladite première section de bras (16) et de ladite seconde section de bras (18) qui permettent à des sections (23) de ladite première section de bras (16) et de ladite seconde section de bras (18) de tourner lors de l'étirement dudit premier élément en élastomère (24) et dudit second élément en élastomère (24) au moment de la mise en contact avec ledit projectile sécurisé (40),
des ressorts (35) destinés à solliciter lesdites articulations (31) dans des configurations prédéterminées, et comprenant en outre une première bille dure (29) assujettie à ladite première extrémité libre (28) dudit premier élément en élastomère (24) et une seconde bille dure (29) assujettie à ladite seconde extrémité libre (28) dudit second élément en élastomère (24).
un corps (12) comportant une première section de bras (16) et une seconde section de bras (18), dans lequel une région centrale ouverte (17) sépare ladite première section de bras (16) et ladite seconde section de bras (18) ;
un premier élément en élastomère (24) relié à ladite première section de bras (16) et s'étendant latéralement à partir de ladite première section de bras (16) dans ladite région centrale (17), dans lequel ledit premier élément en élastomère (24) comporte une première extrémité libre (28) qui se termine par une tête agrandie qui s'étend dans ladite région centrale ouverte (17) ; et
un second élément en élastomère (24) relié à ladite seconde section de bras (18) et s'étendant latéralement à partir de ladite seconde section de bras (18) dans ladite région centrale (17), dans lequel ledit second élément en élastomère (24) comporte une seconde extrémité libre (28) qui se termine par une seconde tête agrandie (29) qui s'étend dans ladite région centrale ouverte (17),
dans lequel les extrémités libres (28) desdits premier et second éléments en élastomère (24) s'étendent l'une vers l'autre et se terminent sous forme de structures en porte-à-faux à l'intérieur de ladite région centrale ouverte (17) ;
des articulations (31) de ladite première section de bras (16) et de ladite seconde section de bras (18) qui permettent à des sections (23) de ladite première section de bras (16) et de ladite seconde section de bras (18) de tourner lors de l'étirement dudit premier élément en élastomère (24) et dudit second élément en élastomère (24) au moment de la mise en contact avec ledit projectile sécurisé (40),
des ressorts (35) destinés à solliciter lesdites articulations (31) dans des configurations prédéterminées, et ladite tête agrandie (29) dudit premier élément en élastomère (24) est une première bille dure (29) assujettie à ladite première extrémité libre (28) dudit premier élément en élastomère (24), et ladite tête agrandie (29) dudit second élément en élastomère (24) est une seconde bille dure (29) assujettie à ladite seconde extrémité libre (20) dudit second élément en élastomère (24).
(30) est relié à un élément formant bouchon (34) fixé à ladite première section de bras (16) et s'étend sous forme de structure en porte-à-faux dans ladite région centrale ouverte (17).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.
Patent documents cited in the description