FR2722367A1 - Multi=functional tube attached to fishing line - Google Patents

Abstract

The hollow tubular element (1) is open at both ends, and forms a hollow body (7) when the end sections (9,10) are attached to contain air, water or solids. Each of the end sections, or caps, is extended axially by a neck section which has a small cross-sectional area compared to the main tube section. An internal piston (11) slides inside the tube, forming two separate sealed compartments (12,13). The piston is pierced through by a hole (14) which carries a central stem (15) which is fixed rigidly to the piston, but able to slide through the neck holes of the end caps, to enable the position of the piston to be adjusted.

Description

MULTIFUNCTIONAL DEVICE FOR LINE FISHING
SUITABLE FOR USE AS A FLOAT,
AND / OR BALLAST AND / OR PRIMER
The invention relates to a multifunctional device intended to be connected to a fishing line and able to be used as a float and / or ballast and / or bait to launch and present a bait in optimal conditions on a fishing area.

 Traditional floats for angling have an invariable volume, shape and weight but which must be chosen with precision. Consequently, the fisherman must have a large quantity of different floats to adapt to different fishing conditions. In addition, each change of float requires long operations, and often sectioning the line.

 Patent application FR-A-2,440,691 describes a variable density float comprising a hollow body open at its upper end, ballasted in the lower part, closed at its lower end, provided with a suction orifice in the lower part, and in which a piston slides under the operation of an upper rod.

The density of this float can be adjusted according to the position of the piston inside the cylindrical body. Such a float does not constitute a multifunctional device which can be used as well as a float and / or as ballast and / or as a starter. In addition, the adjustments authorized by this float remain limited by the fixed size of the hollow body.

Also, it is not possible to mount such a sliding float centered axially around the fishing line wire.

 The invention therefore aims to remedy these drawbacks by proposing a multifunctional device which can be used as a float and / or ballast and / or bait and thus allowing the fisherman with a single device to use the most varied fishing techniques. .

 The invention also aims to propose such a multifunctional device which offers greater possibilities of modification of its characteristics on the fishing site by the fisherman according to the fishing conditions encountered or the fishing techniques chosen.

 The invention aims in particular to propose such a multifunctional device which can be connected to the fishing line either in a bracket (mounting at a point, in parallel with the fishing line), or by a sliding mounting, the device being centered axially around the fishing line.

 The invention aims more particularly to provide such a device whose characteristics such as weight, volume and density can be modified in fishing action, in particular without dismantling the fishing line or cutting the fishing line.

The invention also aims to propose such a device which can be used
- as a float with adjustable density and / or volume and / or weight, which can float vertically or horizontally,
- as a float that can be filled with water during a touch, and whose filling and sinking speed can be adjusted,
- as a float, the sensitivity of which can be modified remotely in fishing action by the fisherman without requiring the line to be taken out of the water,
- as ballast for deep-sea fishing whose weight / resistance to touch ratio is higher than that of a traditional sinker,
- as ballast for deep-sea fishing to keep the bait taken away from the bottom,
- as a depth or surface initiator,
- as a float and / or ballast and / or bait whose volume and / or weight can be easily modified in fishing action.

To do this, the invention relates to a multifunctional device intended to be connected to a fishing line and capable of being used as a float and / or ballast and / or bait to launch and present a bait, characterized in that it comprises
at least one hollow tubular element open at its two ends and capable of forming a hollow body adapted to contain water and / or air and / or solids,
at least one end cap adapted to be able to be assembled in a leaktight but removable manner on one end of a tubular element, each end cap being extended axially by a neck of cross section smaller than that of the corresponding end of the tubular element,
- at least one internal piston adapted to be able to slide inside a tubular element, in a sealed manner by delimiting, with each end cap, a compartment in this tubular element, and comprising an axial through hole,
- At least one central rod adapted to be able to be introduced through an end cap neck and to be able to carry at least one internal piston mounted tightly around the rod which passes through its axial bore tightly.

 Advantageously and according to the invention, the device comprises at least one hollow central rod whose length is greater than that of at least one tubular element so as to extend outside this tubular element at each of its ends, so that the fishing line wire can be passed through this rod through the tubular member.

 Advantageously and according to the invention, at least one central rod is adapted to pass through at least one neck of an end cap in a leaktight manner to allow the forced introduction of water inside the tubular element between the wall of the neck and the central rod and the retention of the water contained in the tubular element.

 Advantageously and according to the invention, the device comprises at least one end cap able to be disposed at one end of a tubular element and which is provided with at least one side opening opening, allowing the spontaneous introduction of water. in the tubular element.

 Advantageously and according to the invention, the device comprises at least two end caps adapted to be able to be assembled at each end of the same tubular element.

 Advantageously and according to the invention, one of the ends of at least one central rod carries a device for connection to a fishing line wire.

 Advantageously and according to the invention, the device comprises at least one tubular element and / or at least one end cap formed of a sealed material which can be cut with a knife such as a semi-rigid synthetic material.

 Advantageously and according to the invention, the device comprises a plurality of tubular elements adapted to be able to be associated one in axial extension of the other by interlocking in each other and / or on the same connection sleeve and / or on the same end cap.

 The multifunctional device according to the invention can be in the form of a kit comprising a plurality of distinct elements able to be mounted on each other to form a float and / or a ballast and / or a bait for fishing with line.

Also, the device according to the invention can be presented with its various constituent elements assembled to each other in a removable manner. The fisherman will then be able to instantly choose the appropriate constituent elements, and introduce into each compartment of the body an appropriate quantity of water and / or air and / or solids (weights or bait) according to the behavior and the properties it wishes to give to the device.

 Thus, in particular, the invention relates to an adjustable density line fishing float formed by a multifunctional device according to the invention which is mounted so as to present at least one compartment which can contain a sufficient quantity of adjustable air for that its density is lower than that of water. Advantageously and according to the invention, the float comprises an upper end cap provided with at least one lateral orifice allowing the spontaneous introduction of water through this orifice into an upper compartment of the body. Advantageously and according to the invention, the central rod projects out of the body at least through the end of the body opposite to that carrying an end cap provided with at least one lateral orifice.

 Also, the invention relates to a line fishing ballast, characterized in that it is formed of a multifunctional device according to the invention mounted so as to present at least one compartment which can contain an adjustable quantity of water. Advantageously, a ballast according to the invention is characterized in that the multifunctional device is mounted so as to present a body comprising at least one tubular element, one end of which carries an end cap while the other end carries a cap of end or is closed by an internal piston, a central rod passing through the body, and an associated weight around the central rod, so that the density of the ballast is greater than that of water. Advantageously and according to the invention, the ballast comprises a weight disposed at one end of a compartment of the body empty of water.

 The invention further relates to a line fishing initiator characterized in that it is formed of a multifunctional device according to the invention comprising at least one compartment which is filled with primer and which is provided with bores allowing the diffusion of the primer in the surrounding aquatic environment. Advantageously and according to the invention, the initiator comprises a tubular element carrying an end cap at each of its ends, the tubular element and / or at least one cap being provided with bores for the diffusion of 1 primer.

 And the invention relates to a device, that is to say a float and / or a ballast and / or a primer characterized in that it comprises a central hollow rod whose length is greater than that of the body and which projects outside the body at each of its ends.

 The invention also relates to a multifunctional device, a float, a ballast, a booster, comprising in combination all or part of the characteristics mentioned above or below.

Other characteristics and advantages of the invention will appear on reading the following description, which refers to the appended figures in which
FIG. 1 is a schematic perspective view of a multifunctional device according to the invention in the form of a kit,
FIG. 2 is a schematic view in axial section of a device according to the invention used as a float mounted in a bracket on the fishing line,
FIG. 3 is a schematic view in axial section of a device according to the invention used as a float mounted to slide on the fishing line,
FIG. 4 is a schematic view in axial section of a device according to the invention used as ballast slidably mounted on the fishing line,
FIG. 5 is a schematic view in axial section of a device according to the invention used as ballast slidably mounted on the fishing line and adapted to allow the bait to be lifted from the bottom,
FIG. 6 is a schematic view in axial section of a device according to the invention used as ballast slidably mounted on the fishing line according to a variant of the invention,
FIG. 7 is a schematic view of a device according to the invention used as a bottom starter mounted to slide on the fishing line,
FIG. 8 is a schematic view of a device according to the invention used simultaneously as a weighted float and a surface initiator,
FIGS. 9 to 12 are schematic front views illustrating respectively four variants of assemblies which can be obtained with a multifunctional device according to the invention,
- Figure 13 is an axial sectional view of a piston of a device according to the invention.

 FIG. 1 represents an example of a multifunctional device according to the invention in the form of a kit comprising a plurality of separate constituent elements which can be wholly or partly assembled to each other instantly, without tools, and at the place of fishing by the fisherman in order to form a float and / or a ballast and / or a bait for angling.

 The device shown comprises four tubular elements la, lb hollow, namely two la of large diameter and two 7b of small diameter. Each hollow tubular element 1a, 1b is in the general shape of a cylinder of revolution, open at its two ends 2a, 2b, and in a rigid or semi-rigid material capable of containing water, air and solids, such as synthetic material.

Advantageously and according to the invention, this material is transparent or translucent so that the amount of water or solids contained in the tubular element is visible from the outside.

 The multifunctional device shown also comprises six end caps 3a, 3b, namely three end caps 3a of large diameter and three end caps 3b of small diameter which can be assembled in a leaktight manner but removable on one and / or the other of the ends 2a, 2b of a tubular element la of large diameter or, respectively, lb of small diameter.

 Each end cap 3a, 3b is formed of a cylindrical skirt 4a, 4b which can be fitted at the end 2a, 2b of a tubular element la, lb corresponding, and of a neck 5a, 5b extending the skirt axially. 4a, 4b. The cross section of the end of the neck 5a, 5b is smaller than the cross section of the corresponding end 2a, 2b of the tubular element 1a, 1b.

Advantageously and according to the invention, all the end caps 3a, 3b of a multifunctional device according to the invention have necks 5a, 5b which all have the same shapes and dimensions, their cross section being smaller than the cross section ends 2b of tubular elements 1b of smaller dimensions.

 Advantageously and according to the invention, at least one neck 5a, Sb -and preferably all the necks Sa, 5b of the end caps 3a, 3b- has its frustoconical end portion of internal diameter which decreases towards the free end neck 5a, 5b. In this way, the internal diameter of the orifice opening at the end of the neck 5a, Sb can be increased by cutting off part of the frustoconical end part of this neck 5a, 5b.

 In the kit shown in FIG. 1, the multifunctional device is proposed, for each dimension of tubular element la, lb, with three end caps 3a, 3b, one of which has at least one side opening 6 opening out allowing the spontaneous introduction of water into the tubular element la, lb. Preferably, and according to the invention, each lateral orifice 6 is formed in the portion of the end cap 3a, 3b which extends between the skirt 4a, 4b and the neck 5a, 5b.

 The end caps 3a, 3b can be made of a material similar to that which constitutes the tubular elements la, lb. At least one of the caps 3a, 3b can also be plugged at the free end of its neck Sa, 5b either by a removable plug 23, formed by a solid frustoconical tube, or by an end wall formed by all in one piece with the cap.

 The neck 5a, 5b of each end cap 3a, 3b defines a cylindrical portion of revolution between its frustoconical end portion and the portion which connects it to the skirt 4a, 4b. This cylindrical portion makes it possible to clamp and hold a fluorescent or light tubular antenna 30 engaged through the neck 5a, 5b (FIG. 10).

 The end caps 3b of small diameter can be fitted around the tubular elements 1b of small diameter and inside the tubular elements 1a of large diameter. In this way, they can be used as an internal sleeve for mounting two tubular elements 1a of large diameter, one in axial extension of the other. Also, the end caps 3b of small diameter can be inserted at each end of a tubular element la of large diameter so as to act as end cap for this tubular element la.

 Figures 9 to 12 show different mounting variants of the tubular elements 1a, 1b and end caps 3a, 3b by way of example. In Figure 9, there is shown a multifunctional device whose body 7 is formed of two tubular elements 1b of small diameter abutted to each other by an external sleeve 8. This external sleeve 8 may simply consist of a skirt 4b of a small diameter sleeve 3b which has been severed. The body 7 has a lower end cap 9 and an upper end cap 10 which are both small diameter end caps 3b.

 FIG. 10 shows the variant in which the body 7 consists of a tubular element 1a of large diameter at the ends of which a lower end cap 9 and an upper end cap 10 consisting of caps have been inserted. end 3b of small diameter.

 In FIG. 11, the body 7 of the multifunctional device consists of a tubular element la of large diameter receiving at its upper end a connection cap 20 formed of a cap of small diameter 3b, itself associated with a second element tubular lb of small diameter. The upper end of the tubular element 1b of small diameter carries an upper end cap 10 formed of an end cap 3b of small diameter. The lower end of the body 7 carries a lower end cap 9 which consists of an end cap 3a of large diameter.

 In FIG. 12, the multifunctional device comprises a body 7 formed of two tubular elements 1a of large diameter abutted to one another by means of a connection cap 20 formed of a cap 3b of small diameter inserted in their two ends opposite. The lower end cap 9 and the upper end cap 10 are both formed of end caps 3b of small diameter engaged in the ends of the tubular elements la.

 The multifunctional device according to the invention further comprises at least one internal piston 11a, 71b adapted to be able to slide inside a tubular element la, lb in a sealed manner by delimiting a compartment 12, 13 in this tubular element la, lb with each end cap 3a, 3b.

In the example shown in FIG. 1, two internal pistons ila of large diameter and two internal pistons llb of small diameter are provided. Each internal piston 11a, 11b is provided with an axial through hole 14 the diameter of which is the same for all the internal pistons 11a, 11b.

 The multifunctional device also comprises at least one central rod 15 adapted to be able to be introduced through the necks 5a, 5b of the end caps 3a, 3b and to be able to carry at least one internal piston 11a, 11b mounted tightly around this rod 15 which passes through the axial bore 14 of the piston 11a, 11b in a sealed manner. Thus, the external diameter of the rod 15 is similar to or slightly greater than the internal diameter of the axial bore 14. Each internal piston 11a, 11b can be mounted tight on the rod 15 on which it is thus fixed.

Nevertheless, the fisherman can slide each pila piston 11b along the rod 15 or later remove this piston 11a 11b.

 Figure 13 shows an embodiment of the piston 11a, îîb can be mounted tight around a rod 15 passing through its axial bore 14 in a sealed manner. The tightening of the piston îîa, llb on the rod 15 is more axially resistant than the tightening of the piston lita, 11b in a corresponding tubular element la, lb so that the piston 11a, llb remains normally blocked in translation on the rod 15 during its movements in the tubular element la, lb. However, it is possible to move the piston 11a, 13b along the rod 15 after having extracted it from the tubular element 1a, 1b.

 Each piston 11a, llb of molded synthetic material such as rubber comprises a tightening sleeve 24 carrying a radial crown 25. The bore 14 formed through the sleeve 24 has a central portion 26 of smaller diameter through which the rod 15 , whose outer diameter is larger, is engaged in force. This central portion 26 opens at each of its ends onto an insertion hole 27 of larger diameter of the rod 15.

Each insertion hole 27 is connected to the central portion by a frustoconical connecting part 28 facilitating the introduction of the rod 15 into the tightened central portion 26. It should be noted that the length of the axial bore 14 - and more precisely the area of the internal surface of this bore - is greater than the length of the end surface 29 of the radial crown 25 in contact with the tubular element la, lb -and more precisely the area of the surface of this bearing 29. The internal pistons lla, îlb may have another shape.

 In FIG. 1, the large diameter pistons 11a conform to the embodiment of FIG. 13, while the small diameter pistons are simply made up of drilled rubber discs.

 The central rod 15 is hollow, so that it can be crossed by a fishing line for a sliding mounting of the device. Furthermore, its length is greater than that of at least one tubular element 1a, 1b, so that this rod 15 can extend outside this tubular element 1a, 1b at each of its ends. Thus, the wire 17 of the fishing line can be passed through the tubular element 1a, 1b in the rod 15 which passes through it. In the example shown in Figure 1, the device comprises, for each diameter, a tubular element of great length and a tubular element of short length. The central rod 15 has a length greater than the sum of the lengths of the tubular elements 1a, 1b of greater length. If necessary, the fisherman can cut the rod 15 into several sections or according to the length he wishes to give to this rod.

 The external diameter of the central rod 15 and the internal diameter of the necks 5a, 5b of the end caps 3a, 3b are defined so that the central rod 15 can pass through such a neck 5a, 5b in a leaktight manner, it that is to say with a certain radial clearance 21 between the neck 5a, 5b and the rod 15, allowing the forced introduction of water inside the tubular element la, lb between the wall of the neck 5a, 5b and the central rod 15. This clearance 21 also allows the retention of the water contained in the adjacent compartment of the tubular element 1a, 1b. Thus, by operating the piston 11a, 11b via the rod 15, and by immersing the neck 5a, 5b in the water, it will be possible to suck water inside the tubular element 1a, 1b corresponding.

 It should be noted however that this clearance is small, and in particular is less than the critical section of spontaneous flow of water so that the water contained in the compartment between the piston lita, llb and the cap 3a, 3b does not does not flow spontaneously, even if the neck 5a, 5b is oriented downwards and conversely, the water does not spontaneously enter the compartment if the device is submerged, even if the neck 5a, 5b is oriented towards the high. On the other hand, if the cap is provided with at least one lateral opening 6, the compartment is then provided with two openings allowing the spontaneous introduction of water: the water penetrates through an opening 6 while the air escapes by the clearance between the rod 15 and the neck 5a, 5b.

 Advantageously and according to the invention, at least one of the ends of the central rod 15 carries a device 16 for connection to a fishing line wire 17 such as a swivel force-fitted into the end of the rod 15 or ligated to the outside of the rod 15, or a ring glued or welded to the rod 15. This connection device 16 allows the mounting of the multifunctional device according to the invention in a bracket (mounting at a point) relative to the line of peach. The end of the rod 15 carrying the swivel 16 can be plugged or not depending on the desired effect. In the latter case, the water gradually penetrates into the body 7 of the float.

 The tubular elements 1a, 1b, the end caps 3a, 3b and the central rods 15 are formed from a rigid or semi-rigid synthetic material which can be cut with a knife, so that the various assemblies and the adjustments in dimensions can be made by the fisherman in fishing action.

In particular, it will be possible to reduce the length of each tubular element 1a, 1b used, to cut off an end cap 3a, 3b so as to use only the skirt 4a, 4b as coupling sleeve 8, sectioning part of the frustoconical end portion of a neck 5a, 5b so as to adjust the extent of the clearance 21 between the rod 15 and the neck 5a, 5b or for mounting an antenna of larger diameter. ..

 The material of each tubular element 1a, 1b and each end cap 3a, 3b is chosen so that the simple mounting of an end cap 3a, 3b inside or outside a end of tubular element 1a, 1b makes it possible to produce a rigid but removable tight connection. If necessary, provision may also be made to interpose a seal.

For example, the tubular elements 1a, 1b are made of rigid synthetic material while the end caps 3a, 3b are made of semi-rigid synthetic material (softer than the tubular elements) and are mounted on the tubular elements with a certain tightening radial.

 The device of FIG. 1 further comprises at least one large antenna 30 of bright color with a diameter corresponding to that of the cylindrical portion of the necks 5a, 5b, at least one fine antenna 22 which can be introduced into the hollow rod 15, and at minus a pair of removable frustoconical plugs 23 for the necks 5a, 5b. A chemical light device can also be fixed on the rod 15 and / or on a neck 5a, 5b.

 FIG. 2 represents an example of application of a multifunctional device according to the invention as an adjustable density float. In this embodiment, the body 7 of the float consists of a tubular element of small diameter. Each end of the body 7 carries an end cap 3b of small dimensions, namely a lower end cap 9 and an upper end cap 10. An internal piston îîb (shown in accordance with the embodiment of Figure 13) is engaged inside the tubular element 1b. The central rod 15 crosses the entire body 7 thus formed and opens out on the outside of the necks of each of the lower end 9 and upper end caps 10. The central rod 15 is hollow and fixed tight in the axial bore 14 of the piston llb which it crosses.

 It should be noted that the fishing float thus formed is mounted on the wire 17 of the fishing line by means of the rod 15, and in the example of FIG. 2, thanks to the swivel 16 disposed at the lower free end of this rod 15. Depending on the position which is given to the piston llb inside the body 7, a greater or lesser amount of water can be introduced into the lower compartment 12 delimited by the piston îîb upwards and through the lower cap 9 downwards. The upper compartment 13 initially contains air. The upper end cap 10 is of the type provided with one (or more) lateral orifice (s) 6. The central rod 15 carries a fixed fluorescent antenna 22 fixed at its upper end and is fixed relative to the body 7 and to the end caps 9, 10 via the piston ilib. In this way, one can effectively leave a clearance 21 between the necks of the end caps 9, 10 and the rod 15. If after having launched the float, the fisherman wishes to increase its density to make it sink more deeply, it suffices that 'it exerts very brief pulls on the fishing line so that water can penetrate in small doses into each lateral opening 6.

The sensitivity of the float can therefore be adjusted by the fisherman in fishing action, which avoids successive throws and in particular makes it possible to preserve the bait and save time.

 Furthermore, when touched, the float sinks into the water and the upper compartment 13 fills with water at a speed which depends on the number and diameter of the lateral orifices 6. In this way, the float offers less resistance to sinking after a touch, which reduces the risk of detection of the float by the fish.

 It should be noted that the fisherman has a wide variety of possible settings for the speed of filling the upper compartment 13 and the speed of insertion of the float according to the number and / or the size of the side orifices 6 which he can modify (by cutting with a knife or by changing the upper end cap 10), according to the position which it gives to the internal piston ilib in the body 7, and according to the quantity of water which it will have previously sucked into the compartment lower 12. As a variant, with an upper cap 10 free from lateral opening 6 (not pierced), water cannot spontaneously penetrate into compartment 13.

 Furthermore, the float according to the invention can be held flat on the surface of the water, if no lead is attached to the line or to the rod, even if it is filled with water. This produces a heavy float that can be launched but floats horizontally flat.

 FIG. 3 represents another embodiment of a float simply consisting of a body 7 formed of a tubular element 1b of small dimensions, of a lower cap 9 formed of an end cap 3b of small diameter, the internal piston 11b being raised upwards to the upper end of the body 7. The wire 17 of the fishing line is passed inside the hollow central rod 15 and blocked by seals split in the traditional way or thanks to an antenna 22 fixed in the upper end of the rod 15. Depending on the amount of water drawn into the body 7, the density of the float, and therefore its sensitivity can be adjusted.

 The assemblies of FIGS. 4 to 6 allow a bottom ballast to be produced. In FIG. 4, the ballast consists of a body 7 formed of a tubular element 1b of small diameter, of an upper end cap 10 formed of an end cap 3b of small diameter, of a piston internal îlb placed at the opposite end of the tubular element 1b relative to the cap 10, of a central rod 15 which crosses the entire tubular element 1b, and of a weight 18, for example in the form of a lead wire wrapped around the central rod 15. The ballast is completely filled with water and allows long throws while providing a very sensitive assembly which has little tendency to cling to the bottom. Indeed, the weight in the air of the ballast thus constituted is the sum of the weight of its constituent elements 7, 10, îîb, 15, of the water it contains and of the weight 18. On the contrary, when it is at the bottom of the water, the tensile strength of the ballast corresponds only to that of its constituent elements 7, 10, iib, 15 and of the weight 18. The passage from the float in FIG. 3 to the ballast in FIG. 4 is extremely simple and fast. it suffices to wind the lead wire 18 around the rod 15.

 The variant of FIG. 5 is similar to that of FIG. 4, but the body 7 of the ballast contains no water and contains air, and the lead 18 is moved in the vicinity of the end of the rod 15 opposite the piston îlb, that is to say in the vicinity of the end cap 10. In this way, the ballast thus formed is held vertically or slightly inclined in the water and the end of the fishing line s' extending from the piston llb out of the rod 15 is kept detached from the bottom. In this variant, it should also be noted that the volume of air contained inside the body 7 neutralizes part of the weight due to the seal 18, so that the ballast is particularly sensitive.

 In Figure 6, there is shown another variant of ballast formed similarly to the float of Figure 2, which was partially filled with water and provided with a winding 18 sealing. As can be seen, the passage from the float shown in FIG. 2 to the ballast shown in FIG. 6 takes place extremely quickly. The ballast is slidably mounted on the wire 17 between two fixed split seals on each side on the wire 17.

 In Figure 7, there is shown a primer formed of a tubular element 1b of small dimensions provided with holes 19 and having an end cap 9, 10 of small diameter 3b at each of its ends. The fishing line 17 is passed through the necks 5b and through the entire initiator. Each neck 5b is closed by a removable plug 23 which blocks the wire 17. The body 7 is filled with primer (flour, maggots ...) and the holes 19 allow the diffusion of this primer in water. As a variant, the bores can be made only on the caps 9, 10, or both on the caps 9, 10 and on the tubular element forming the body 7. A weight can be incorporated in the body 7. The device thus realized then acts as a starter and ballast.

 Advantageously and according to the invention, the float, the ballast or the initiator thus formed comprise a central hollow rod 15 whose length is greater than that of the body 7 and which projects outside the body 7 at each of its ends. In this way, the wire 17 of the line can be passed through the rod 15 through the body 7 for a sliding assembly. In addition, the tightness of each compartment 12, 13 is preserved.

 FIG. 8 represents an alternative embodiment which combines several functionalities of the device according to the invention. In this figure, an assembly such as that described with reference to FIG. 11 is used. The tubular element of small upper diameter lb is provided with an upper central rod 15 ′ which extends from an internal piston llb of small diameter separating this upper tubular element into two compartments 12 ′, 13 ′, one of which 13 ′ upper can be filled with water while the other 12 ′ lower contains air. The tubular element 1a of larger diameter located in the lower part also comprises an internal piston ila of large diameter which separates it into two compartments 12 ", 13", namely an upper compartment 13 "provided with holes 19 and acting as igniter, and a 12 "lower compartment that can hold a certain amount of water. Such a variable density float serves both as ballast for launching the line and as a surface initiator.

 Many other types of mounting are obviously possible. It is thus for example possible to fit a greater number of tubular elements into each other without cutting the wire ...

 The body 7 of the device can be used to store various accessories, in particular the hooks at the end of the fishing session.

Claims (18)

 1 / - Multifunctional device intended to be connected to a fishing line and suitable for use as a float and / or ballast and / or bait to launch and present a bait, characterized in that it comprises  - at least one hollow tubular element (la, lb) open at its two ends (2a, 2b) and able to form a hollow body (7) adapted to contain water and / or air and / or solid,  - at least one end cap (3a, 3b) adapted to be able to be assembled in a sealed but removable manner on one end (2a, 2b) of tubular element (la, lb), each end cap (3a, 3b ) being extended axially by a neck (5a, 5b) of cross section smaller than that of the corresponding end of the tubular element (la, lob),  - at least one internal piston (1 la, llb) adapted to be able to slide inside a tubular element (la, lb) in a sealed manner by delimiting, with each end cap (3a, 3b), a compartment (12, 13) in this tubular element (la, lob), and comprising an axial through hole (14),  - at least one central rod (15) adapted to be able to be introduced through a neck (5a, 5b) of end cap (3a, 3b) and to be able to carry at least one internal piston (1a, 11b) mounted tight around the rod (15) which passes through its axial bore (14) in a sealed manner.  2 / - Device according to claim 1, characterized in that it comprises at least one central rod (15) hollow whose length is greater than that of at least one tubular element (la, lb) so as to extend outside this tubular element (la, lb) at each of its ends (2a, 2b), so that the fishing line (17) can be passed through this rod (15) by crossing the tubular element (la, lb).  3 / - Device according to one of claims 1 and 2, characterized in that at least one central rod (15) is adapted to pass through at least one neck (5a, 5b) of an end cap (3a, 3b) in a leaktight manner to allow the forced introduction of water inside the tubular element (la, lb) between the wall of the neck (5a, 5b) and the central rod (15), and the retention water contained in the tubular element (7a, lob).  4 / - Device according to one of claims 1 to 3, characterized in that at least one neck (5a, 5b) of end cap (3a, 3b) has its frustoconical end portion.  5 / - Device according to one of claims 1 to 4, characterized in that it comprises at least one end cap (3a, 3b) capable of being disposed at one end (2a, 2b) of a tubular element (1a, 1b) and which is provided with at least one side opening (6) opening out, allowing spontaneous introduction of water into the tubular element (1a, lob).  6 / - Device according to one of claims 1 to 5, characterized in that it comprises at least two end caps (3a, 3b) adapted to be able to be assembled at each end (2a, 2b) of the same tubular element (la, lb).  7 / - Device according to one of claims 1 to 6, characterized in that one of the ends of at least one central rod (15) carries a connection device (16) to a fishing line wire.  8 / - Device according to one of claims 1 to 7, characterized in that it comprises at least one tubular element (la, lb) and / or at least one end cap (3a, 3b) formed of a waterproof material that can be cut with a knife such as a semi-rigid synthetic material.  9 / - Device according to one of claims 1 to 8, characterized in that it comprises a plurality of tubular elements (la, lb) adapted to be able to be associated one in axial extension of the other by nesting in each others and / or on the same connection sleeve (8) and / or on the same end cap (3a, 3b).  10 / - Angling float of adjustable density characterized in that it is formed of a multifunctional device according to one of claims 1 to 9, mounted so as to have at least one compartment (12, 13) capable of contain a sufficient amount of adjustable air so that its density is less than that of water.  11 / - Float according to claim 10, characterized in that it comprises an upper end cap 10) provided with at least one lateral orifice (6) allowing the spontaneous introduction of water through this orifice (6) into an upper compartment (13) of the body (7).  12 / - Float according to claim 11, characterized in that the central rod (15) projects out of the body (7) at least through the end of the body (7) opposite to that carrying an end cap (3a, 3b) provided with at least one lateral orifice (6).  13 / - Line fishing ballast with adjustable density characterized in that it is formed by a multifunctional device according to one of claims 1 to 9 mounted so as to present at least one compartment (12, 13) which can contain an adjustable amount of water.  14 / - Ballast according to claim 13, characterized in that the multifunctional device is mounted so as to present a body (7) comprising at least one tubular element (la, lb), one end of which carries an end cap (3a, 3b) while the other end carries an end cap (3a, 3b) or is closed by an internal piston (11a, lob), a central rod (15) passing through the body (7) and a weight (18 ) associated around the central rod (15), so that the density of the ballast is greater than that of the water.  15 / - Ballast according to one of claims 13 and 14, characterized in that it comprises a weight (18) disposed at one end of a compartment (12, 13) of the body (7) empty of water.  16 / - Angling bait characterized in that it is formed by a multifunctional device according to one of claims 1 to 9 comprising at least one compartment filled with bait and which is provided with holes (19) allowing diffusion of the primer.  17 / - Starter according to claim 16, characterized in that it comprises a tubular element (la, lb) carrying an end cap (3a, 3b) at each of its ends, the tubular element (la, lb) and / or at least one cap (3a, 3b) being provided with bores (19).  18 / - Device according to one of claims 10 to 17, characterized in that it comprises a central hollow rod (15) whose length is greater than that of the body (7) and which projects outside the body ( 7) at each of its ends, so that the line wire (17) can be passed through the rod (15) through the body (7).