FR3134886A1 - AMBIDEXTROUS ARC GRIP MADE OF A GRIP AND A GRIP BODY AND ASSOCIATED ARC - Google Patents

Abstract

A grip body (1000) for forming, with a grip (2000), a grip (3000) of an ambidextrous bow; said grip body (1000) comprising: a central portion (12) having a notch (10) for positioning an archer's thumb; and two arms (13) extending from said central portion (12) in opposite directions; each arm (13) having a recess (16) and means for fixing (22) said grip (2000); said grip body (1000) having a plane of symmetry so that the archer can select one of the arms (13) to fix said grip (2000) and the other arm (13) to form said shooting window; and the selection of each arm (13) being carried out by a tilting of 180° around an axis (D) of said plane of symmetry, in order to obtain a handle (3000) adapted for a left-handed or a right-handed person. Figure for abstract: Fig 7

Description

AMBIDEXTROUS ARC GRIP MADE OF A GRIP AND A GRIP BODY AND ASSOCIATED ARC

The invention relates to the field of archery practiced in clubs or for leisure.

It aims more specifically at the design of an ambidextrous bow grip formed by the combination of a grip and a grip body.

The invention can advantageously be used indoors or outdoors and is suitable for archers of all levels.

Technology background

Classically, a bow is made up of a handle, at the ends of which extend two branches on which a string is stretched.

In particular, the handles of the bows differ if the archer is left-handed or right-handed. A left-hander uses a handle adapted for a left-hander while a right-hander uses a handle adapted for a right-hander.

Among the different categories of bows, there is a first category, mainly used for leisure, in outdoor activities and/or intended for beginner archers. This first category is generally made in a single block in materials resistant to impacts and bad weather. For example, patent EP 1 070 933 describes a bow whose handle and branches are made in one piece.

In this bow, the handle has an ergonomic shape in its center intended to accommodate the hand of an archer. To do this, two distinct bow shapes must be made to cover the needs of left-handed and right-handed archers.

Another category of bows, intended for more experienced archers practicing club archery, includes an additional part called a "grip" and intended to be fixed in the center of a handle body, so as to facilitate the grip of the bow and to increase the comfort and sensations of the archer. The combination of the grip on the handle body thus makes it possible to form an arc handle.

To do this, two shapes of grips must be made to cover the needs of left-handed and right-handed archers. A first form, intended for left-handers, comprises a left-handed handle body and a left-handed grip and a second form, intended for right-handers, comprises a right-handed handle body and a right-handed grip. For example, US patent 4,966,124 describes a grip, in the shape of an elongated “U”, intended to fit onto the rear of the edge of a handle body.

As part of club archery practice, most often, archers borrow a bow belonging to the club. Among these archers, some are right-handed and others are left-handed. For clubs, there is therefore a stock management problem to allow all archers present at the same time on a shooting range to have a bow adapted to their physiological characteristics.

Patent application US5697358 describes a bow whose handle is reversible to adapt to either a right-handed or a left-handed person. Inversion is carried out by disassembling the limbs of the bow and rotating around a longitudinal axis of the handle.

However, adapting this bow to a right-handed or left-handed person is long and tedious because it requires dismantling the string and the limbs. In addition, the handle is neutral and has no rough edges making it easier for the archer to grip the bow because it must be able to be grasped by a right-handed or left-handed person.

This type of bow is therefore not suitable for an experienced archer who is looking for a high degree of improvement in their bow.

The technical problem that the invention aims to solve is therefore to produce a bow that can be adapted to a left-hander and a right-hander, while allowing experienced archers to use such a bow without feeling a drop in comfort or performance. shooting.

To solve the problem mentioned above, the invention proposes to develop a handle body intended to form, with a grip, a handle of an ambidextrous arc. The handle body includes:
– a central part having a notch intended to position an archer's thumb; And
– two arms extending from said central part in opposite directions, one end of each arm being intended to fix a branch of said ambidextrous arc.

Each arm has a recess forming a shooting window and means for fixing the grip. The grip body, for its part, has a plane of symmetry so that the archer can select one of the arms to fix the grip and the other arm to form the shooting window. The selection of each arm is carried out by tilting 180° around an axis of the plane of symmetry, in order to obtain a handle suitable for a left-handed or a right-handed person.

In other words, the design of the grip body allows an archer to adapt the bow to his guiding hand in a limited number of steps and without having to disassemble either the limbs of the grip body or the bow string. . Simply disassemble the grip, turn the bow over and reassemble the grip on the opposite arm.

For example, knowing that the proportion of left-handers is around 10%, a club purchases ten grip bodies, one left-handed grip and nine right-handed grips in the hope of providing a bow suitable for all the archers licensed in the club. If it turns out that the proportion of left-handers registered at the club is greater than the statistic, the club will only have to purchase an additional left-handed grip and not a complete bow to adapt to these variations. Thus, the invention makes it possible to save money and better manage material stocks.

According to one characteristic of the invention, the grip fixing means correspond to at least one hole opening into the recess of each arm; the at least one through hole being intended to accommodate at least one screw penetrating the grip.

In other words, to attach the grip to the grip body, the archer can carry out a simple screwing operation. The grip is thus less likely to move or separate from the grip body when the bow undergoes twisting and/or deformation forces linked to shooting an arrow.

Preferably, the grip fixing means are also configured to fix an arrow rest and/or a Berger button in the recess in the arm forming the shooting window.

According to the invention, a “Berger button” or “compensator button” is composed of an internal spring which presses on the arrow tube. The Berger button acts as a shock absorber for the arrow when it is propelled and reduces its undulations.

Thus, knowing that the grip support means are present symmetrically on each arm of the handle body, a right-handed or left-handed archer can use the grip support means opposite to those already occupied by a grip to attach additional grip accessories. way to improve your shooting experience. This therefore makes it possible to adapt the bow to the level of the archer by adding or not accessories for compensation and/or stabilization of the shot.

By taking into consideration an archer in a shooting position, it is possible to define a geometry of the handle body comprising:
– a front face of the grip body, from which the tip of an arrow, correctly nocked on the bow, protrudes;
– a rear face of the handle body, opposite the front face of the handle body, intended to receive the palm of the archer's hand; And
– two side faces of the handle body, substantially perpendicular to the front and rear faces of the handle body.

Advantageously, the grip support means correspond to two through holes opening onto the side faces of the handle body.

In this way, the grip can be fixed laterally on the handle body, unlike the grips of the state of the art, which fit onto the rear face of the handle body. The grips can therefore be in one piece, unlike the grips of the state of the art, which have a U shape. The one-piece grips are thus generally more resistant to deformation or breakage.

According to another characteristic, each arm has second means for fixing a clicker and/or a viewfinder.

A clicker corresponds to an accessory producing an audible signal indicating to an archer that he must release his arrow. Such an accessory allows an archer to make his shooting movement more fluid. Furthermore, the fact of using a single type of fixing means for several different accessories makes it possible to reduce the production costs of the handle body.

The invention also relates to a grip intended to be mounted on a handle body as described above.

In particular, the grip includes:
– an upper part intended to be mounted on the central part of the grip body to ensure the positioning of the archer's thumb and at least the index finger; said upper part comprising:
. a first side face having a portion intended to be inserted into the notch in the central part of the handle body; And
. a second side face, opposite the first side face, presenting a recess intended to leave visible at least a fraction of the central part of said handle body; And
– a lower part intended to be mounted on an arm of said handle body; said lower part comprising:
. a first side face, opposite said first convex side face, having a flat surface in which grip fixing means intended to cooperate with the fixing means of said handle body are provided, and
. a second convex side face intended to ensure the positioning of the palm and other fingers of the archer.

In practice, the upper part has a protrusion on its first lateral face, intended to form, with the recess of an arm of said handle body, the firing window.

Thus, it is the combination of the grip and the handle body which makes it possible to form the shooting window.

Such a grip is also a part which is easy to handle. Indeed, the fixing can be carried out by placing the grip on one side of the handle body and by aligning the grip fixing means on the handle body.

For example, according to one embodiment, the grip fixing means correspond to at least one threaded blind hole configured to receive at least one fixing screw.

Advantageously, the grip also includes a threaded tube configured to accommodate a stabilizer located at a lower part of a rear face of the grip.

In this way, the stabilizer can be integrated on the bow handle without having to make a recess in the handle body, which would have the effect of weakening the handle body which is subjected to strong torsional stresses when the bow is drawn and when the arrow is released.

The invention also relates to an ambidextrous bow grip comprising a grip body and a grip as previously described.

The invention finally relates to an ambidextrous bow comprising a handle as described above, at the ends of which two branches are mounted, and a rope stretched at the ends of the two branches.

Thus, a bow comprising such a handle body and such a grip is very versatile because it can adapt to all levels, from a beginner archer who does not use accessories to an experienced archer who practices shooting. archery in competition and who uses numerous accessories such as a stabilizer, a Berger button, a sight and/or a clicker.

Summary description of the figures

The manner of carrying out the invention, as well as the advantages which result from it, will emerge clearly from the description of the embodiments which follow, in support of the appended figures in which:

There is a view of the rear face of a handle body according to one embodiment of the invention,

There is a side view of the handle body of the ,

There is a view of the opposite side of the handle body of the ,

There is a view of the rear face of a grip according to one embodiment of the invention,

There is a side view of the grip of the ,

There is a view from the opposite side of the grip of the ,

There is a view of a rear face of an ambidextrous bow grip comprising a grip body and a grip according to one embodiment of the invention,

There is a side view of the handle of the , And

There is a view from the opposite side of the handle of the .

detailed description

Taking into consideration an archer in a shooting position, a grip body 1000 comprises:
– a front face, from which the tip of an arrow, correctly nocked on the bow, protrudes;
– a rear face 100 , opposite the front face, intended to receive the archer's hand; And
– two side faces 101 , 102 , substantially perpendicular to the front and rear faces 100 of the handle body 1000 .

As illustrated on the , the handle body 1000 , seen from its rear face 100 , has a central part 12 in the shape of a “C”, hatched on the , comprising a notch 10 allowing the archer's thumb to be supported. The opposite face 11 is preferably curved to allow the central part 12 to have a substantially constant thickness, typically between 2 and 5 cm. The central part 12 , which concentrates most of the forces generated by the drawing of the bow and/or the release of the arrow 17 , thus has sufficient resistance not to break or deform under the effect of these forces.

As illustrated in Figures 1 to 3, on either side of the ends of the central part 12 , two arms 13 extend vertically over a length of between 50 and 70 cm and a substantially constant thickness, typically between 2 and 5 cm. A first edge of the arms 13 , located on the same side as the notch 10 , has a substantially rectilinear appearance. The opposite edge 15 has an arcuate appearance linked to the presence of a recess 16 on the side face 101 . This recess 16 is intended to form a shooting window in which the archer can position his arrow 17 and aim at a target.

The end of the arms 13 closest to the central part 12 has two holes 22 with a diameter of between 0.2 and 1 cm located at a distance of between 1 and 5 cm from the central part 12 and at a distance of between 3 and 7 cm from the center of the central part 12 . The two holes are spaced from each other by 0.5 to 3 cm and by 1 to 3 cm from the lateral ends of the side faces 101 and 102 . The two holes 22 are positioned on each arm 13 , symmetrically with respect to the central part 12 . Alternatively, the arms 13 may have only one hole or three holes without changing the invention.

Advantageously, a countersink of enlarged diameter, present at the ends of the holes 22 , makes it possible to accommodate the head of the screws. These then do not protrude and do not hinder the archer's grip.

The holes 22 may be intended to attach a grip 2000 and/or accessories such as an arrow rest or a shepherd's button.

The end of the arms 13 extending opposite the central part 12 is wider, typically between 5 and 7 cm and forms substantially flat surfaces intended to receive the branches of the arc.

For this purpose, there are several embodiments of the arch, in which the arms 13 are configured to receive a particular type of branch. For example, the arms 13 can be configured to receive initiation branches or even arch branches belonging to the standardized ILF system (for “International Limb Fitting System” in the English literature, corresponding to a fixing system branches). An archer can thus choose the technicality of his branches according to his level.

Contrary to what is shown in Figures 1 to 3, the two opposite ends of the arms 13 are generally identical. However, in order to represent several types of branch attachments, the upper arm 13 of the handle body 1000 is shown with an ILF branch attachment system, while the lower arm 13 of the handle body 1000 is shown with an attachment system of initiation branches.

Thus, the system for fixing an initiation branch is provided with a substantially rectangular footprint 18A making it possible to position the branch to be fixed. The imprint thus extends from the end of the arm 13 , over a length of between 7 and 10 cm. The impression 18A also includes an opening 25 with a diameter of between 0.5 and 1 cm comprising a thread. The opening 25 is intended to receive a screw 26 for fixing the branches, also called a tiller. In order to fix the branch to the fixing system, the end of the branch having a through opening is aligned with the recess 18A , then the fixing screw 26 passes through the branch and is inserted into the opening 25 , generally blind.

Concerning the ILF branch fixing system, the recess 18B has a rounded end, a hole 19 and an oblong-shaped opening 20 . In order to mount the ILF branch on the cavity 18B , the oblong-shaped opening of the ILF branch is aligned with the hole 19 of the cavity 18B and the hole of the ILF branch is aligned with the oblong-shaped opening 20 of imprint 18B . The ILF branch and the impression 18B are then screwed together using a fixing screw 21 . Optionally, the hole 19 can be through and a locking nut can be used to block the rotation of the fixing screw 21 .

Alternatively, the mounting system can be adapted to accommodate both ILF limbs and conventional training limbs.

The arms 13 also include holes 23 , 24 of smaller diameter, typically between 0.1 and 0.7 cm. These holes 23 , 24 are intended for attaching other accessories such as a viewfinder or a clicker.

Advantageously, the front face, not shown in the figures, can also include blind openings allowing a clicker extension to be inserted.

Preferably, the handle body 1000 is formed from wood, carbon fibers or a metallic material, typically aluminum, and covered with a layer of paint and/or decorations.

The range can include several handle bodies of several sizes, typically a 21 inch handle, a 23 inch handle and a 25 inch handle.

Taking into consideration an archer in a shooting position, a grip 2000 includes:
– a front face, through which the arrow emerges;
– a rear face 200 , opposite the front face, intended to receive the palm of the archer's hand; And
– two side faces 201 , 202 , substantially perpendicular to the front and rear faces 200 of the grip 2000 .

As illustrated in Figures 4 to 6, a grip 2000 has a one-piece shape with a height of between 10 and 20 cm comprising an upper part 220 intended to ensure the positioning of the thumb and at least the index finger of the archer and a lower part 210 intended for mounting the grip 2000 on an arm 13 of the grip body 1000 .

The upper part 220 includes a recess 51 , provided on a first face 202 of the grip 2000 , against which the archer's thumb is positioned. The opposite face 201 of the recess 51 is intended to receive the archer's index finger.

The opposite face 201 also includes, at its upper end, a protrusion 52 projecting, perpendicular to the length of the grip 2000 , over a length of between 0.5 and 1.5 cm. The protrusion 52 is intended to form, associated with the handle body 1000 , a firing window.

The lower part 210 has a convex portion on the opposite face 201 to the recess 51 . The convex portion ensures the positioning of the archer's other fingers, while the first face 202 is intended to receive the archer's palm. In addition, the lower part 210 advantageously comprises a hollow tubular portion 53 preferably having an internal thread projecting towards the front face of the grip 2000 . This hollow tubular portion 53 is intended for the insertion of a stabilizer, either by screwing or by force insertion.

Alternatively, the stabilizer can be independent of the grip 2000 and fit on the bow in both right-handed and left-handed configurations.

The opposite face 201 also has two holes 54 with a diameter of between 0.2 and 1 cm. The two holes are 0.5 to 3 cm apart from each other.

These holes 54 are intended for fixing the grip 2000 on the handle body 3000 .

Advantageously, a countersink of enlarged diameter, present at the ends of the holes 54 , makes it possible to accommodate the head of the fixing screws. These then do not protrude and do not hinder the archer's grip.

Preferably, the grip 2000 is formed by a single injection operation. The material used to form the grip 2000 is preferably a plastic material, a polymer material such as aromatic polyamide, preferably chosen, alone or as a mixture, from the group comprising polyacrylamides, liquid crystals, polyamide imides. Alternatively, the grip 2000 can be made of wood or aluminum.

Mounting the grip 2000 on the handle body 1000 makes it possible to obtain an arc handle 3000 as illustrated in Figures 7 to 9.

In order to mount its bow grip 3000 , a right-hander will hold the grip body 1000 in the configuration of the , that is to say he will hold the grip body 1000 in his left hand in order to tighten the bowstring with his right hand. Alternatively, a left-handed person will hold the grip body 1000 in his right hand in order to tighten the bowstring with his left hand. So, to switch from the right-handed configuration of the to that of a left-handed person, the archer rotates the handle body 1000 by 180° around the axis D so as to invert the arms 13 . The arm 13 initially located at the bottom thus finds itself at the top and vice versa. The archer also orients the central portion 12 of the grip body 1000 so that his thumb rests in the notch 10 .

As illustrated in Figures 7 to 9, the grip 2000 can be mounted on the handle body 1000 by pressing the grip 2000 against a side face 201 , 202 of the handle body 1000 . In particular, in the right-handed configuration, the grip 2000 is attached to the side face 102 of the handle body 1000 . When the grip 2000 is correctly positioned, the first side face 201 of the grip 2000 includes a portion 55 at least partially covering the notch 10 of the central part 12 of the handle body 1000 . The thickness of the portion 55 being increasingly thin, typically going from 0.5 cm to 0.01 cm, in order to improve the transition between the grip 2000 and the handle body 1000 and not to create a bump or extra thickness which would deteriorate the grip of the handle 3000 .

The second side face 202 of the grip 2000 includes a recess 51 making it possible to leave visible at least a fraction of the convex part 11 of the central part 12 of the handle body 1000 . Thus, the archer's index finger comes directly into contact with the handle body 1000 when gripping the handle 3000 . This prevents the grip area from thickening, which would deteriorate the archer's grip.

The lower part 210 of the grip 2000 extends over the side face 101 of the lower arm 13 of the handle body 1000 . The combination of the handle body 1000 and the lower part 210 of the grip 2000 forms an extra thickness allowing the fingers to be supported. Thus, the total width of the finger positioning area is between 5 and 7 cm. The grip 2000 also extends towards the rear face of the handle body 1000 , protruding therefrom by approximately 2 to 5 cm.

In order to fix the grip 2000 on the handle body 1000 , the grip has through holes 22 so that the archer can screw from a side face 101 , 102 of the handle body 100 into the grip 2000 , arranged on the face opposite side 101 , 102 of the handle body 1000 . Alternatively, the holes 22 may be blind holes. The archer can thus screw from a side face of the grip 2000 , into the handle body 1000 , arranged on the opposite side face of the grip 2000 . Again alternatively, the screws may pass through both the grip 2000 and the grip body 1000 .

To conclude, the invention makes it possible to produce a bow that can be adapted to a left-hander and a right-hander, while allowing experienced archers to use such a bow without feeling a drop in comfort or shooting performance thanks to the presence numerous sites for receiving accessories such as a stabilizer, a Berger button, a viewfinder and/or a clicker.

Claims (11)

Handle body (1000) intended to form, with a grip (2000), a handle (3000) of an ambidextrous bow; said handle body (1000) comprising:
– a central part (12) having a notch (10) intended to position the thumb of an archer; And
– two arms (13) extending from said central part (12) in opposite directions, one end of each arm (13) being intended to fix a branch of said ambidextrous arc;
each arm (13) having a recess (16) forming a firing window and fixing means (22) of said grip (2000);
said grip body (1000) having a plane of symmetry so that the archer can select one of the arms (13) to fix said grip (2000) and the other arm (13) to form said shooting window; And
the selection of each arm (13) being carried out by a tilting of 180° around an axis (D) of said plane of symmetry, in order to obtain a handle (3000) adapted for a left-handed or a right-handed person. Handle body according to claim 1, characterized in that the grip fixing means (2000) correspond to at least one through hole (22) in the recess of each arm (13); the at least one through hole (22) being intended to accommodate at least one screw penetrating the grip (2000). Handle body according to one of claims 1 or 2, characterized in that the grip fixing means (2000) are configured to fix an arrow rest and/or a Berger button in the recess of the arm (13) forming the shooting window. Handle body according to one of claims 1 to 3, characterized in that the means for fixing the grip (2000) correspond to two through holes (22) opening onto the side faces of said handle body (1000). Handle body according to one of claims 1 to 4, characterized in that each arm (13) has second fixing means (23, 24) of a clicker and/or a viewfinder. Grip intended to be mounted on a handle body (1000) according to one of claims 1 to 5; said grip (2000) comprising:
– an upper part (220) intended to be mounted on the central part (12) of the handle body (1000) to ensure the positioning of the thumb and at least the index finger of the archer; said upper part (220) comprising:
. a first side face (201) having a portion intended to be inserted into the notch (10) of the central part (12) of the handle body (1000); And
. a second side face (202), opposite the first side face (201), having a recess (51) intended to leave visible at least a fraction of the central part (12) of said handle body (1000); And
– a lower part (210) intended to be mounted on an arm (13) of said handle body (1000); said lower part (210) comprising:
. a first side face (201), opposite said first convex side face, having a flat surface in which are provided fixing means (54) of the grip (2000) intended to cooperate with the fixing means (22) of said body of handle (1000), and
. a second convex side face (202) intended to ensure the positioning of the archer's palm and other fingers. Grip according to claim 6, characterized in that said upper part (220) has a protrusion (52) on its first lateral face (201), intended to form, with the recess (16), an arm of said handle body (1000), said firing window. Grip according to one of claims 6 to 7, characterized in that said fixing means (54) of the grip (2000) correspond to at least one threaded blind hole configured to receive at least one fixing screw. Grip according to one of claims 6 to 8, characterized in that it comprises a threaded tube (53) configured to accommodate a stabilizer located at a lower part (210) of a rear face (200) of the grip (1000). Ambidextrous bow handle (3000), characterized in that it comprises a handle body (1000) according to one of claims 1 to 5 and a grip (2000) according to one of claims 6 to 9. Ambidextrous bow comprising a handle (3000) according to claim 10 at the ends of which two branches are mounted, and a rope stretched at the ends of the two branches.