FR2546867A1 - Method and device for winding a thread - Google Patents

Abstract

The invention relates to a method and a device for the twist-free winding and unwinding of a thread. Two reels 10 are held next to each other, on the same spindle, in order to wind the thread which is moved periodically from one reel to the other, and then the two reels 10 are placed side by side in order to unwind the thread. The invention applies especially to fishing reels.

Description

Method and device for winding a wire.

The invention relates to a method and a device for winding and unwinding a wire, as well as their applications in a wide variety of technical fields ranging from fishing reels to devices for guiding missiles by cables, to the textile industry, etc. .

It is known that, to wind a wire of any cross section without twisting, it is necessary to guide the wire perpendicularly to the axis of the coil and to drive the coil in rotation about its axis. Conversely, to unwind the wire without twisting, it is necessary to exert a traction on the wire in a direction perpendicular to the axis of rotation of the coil and to rotate the coil in rotation around its axis, in the opposite direction of the winding. It is therefore necessary, to unwind the wire, to exert on it a significant initial traction to overcome the inertia of the spool and put it in rotation. When we stop unwinding the wire, the spool continues to rotate a certain time, due to its inertia, hence a relaxation of a certain number of turns on the coil and a defect in the tension of the unwound wire.

It is precisely to avoid these drawbacks that most of the fishing reels equipping the rods are of the fixed reel type, the winding of the wire on the reel being carried out by means of a hoop or guide finger rotating around the coil. When the wire is wound in this way on a fixed spool in rotation, it automatically undergoes a twist of one turn on itself for each turn of winding on the reel. This results in the drawback that the wire is wound under torsional stress.

To unwind the wire, simply retract the guide finger and pull the wire substantially parallel to the axis of the spool. The wire, when unwinding, undergoes a twist of one turn on itself for each unwinding turn, this twist being the reverse of that which it undergoes on winding.

The unwinding of the wire should therefore theoretically make it possible to cancel the twists undergone by the wire during winding, but it is observed in practice that this is not so, because the wire which is kept wound tightly on a spool for a certain time is more or less deformed or twisted and the twists undergone by the wire during unwinding no longer exactly cancel the twists of the wound wire.

In these reels, there is another drawback due to the fact that the wire, during winding, is supported on the guide ring situated at the end of the rod: this results in an accumulation of twists in the wire, during winding. , between the coil and this guide ring. This accumulation of twists cannot be canceled during the unwinding of the wire during a throw, because then the wire is no longer supported on the head ring. One thus notes, after a certain number of windings-unwindings, an important twist of the wire, which is opposed to a correct launching and sometimes causes, during the launching, an entanglement of loops of the wire.

The subject of the invention is a method and a device for winding and unwinding a wire of any cross section, making it possible to wind and unwind the wire without twisting and without encountering the difficulties associated with the inertia of a coil for its rotation and stopping.

The method according to the invention is characterized in that it consists, on the one hand, in winding the wire, in having two substantially identical coils aligned on the same axis and substantially adjoined, in directing the wire substantially perpendicular to the axis common reels, to wind it on a first reel, to move it substantially parallel to said axis to bring it on the second reel and to wind it there, then to move it in opposite direction parallel to said axis to bring it back on the first coil and to wind it there, and so on, so that the wire wound on the coils forms loops intersecting substantially at the same point between the two coils joined and, on the other hand, to unwind the wire , to have the two coils side by side but with their axes substantially parallel or forming an acute angle between them and to exert on the wire a traction from a point close to the point of crossing of the loops of the loops of the wire wound on the coils.

Thus, the thread which has been wound alternately on one reel and on the other, can be unwound or unwound without torsional stress, since the twisting which can be caused by the unwinding of a length of thread on a reel is automatically canceled. by the twist caused by the unwinding of the same length of wire on the other spool, these two twists being equal but opposite to each other.

In addition, the wire can be unwound freely and effortlessly, because the arrangement of the coils side by side with their substantially parallel axes causes loosening of the loops of wire wound on the coils, the latter being held fixedly in their position during from the unwinding and until the end of it.

According to another characteristic of the invention, the method also consists, for winding the wire without twisting, of driving the coils in rotation in rotation about their common axis and, in view of the unwinding, of immobilizing them in rotation in a position angular such that the crossing point of the wire loops is radially oriented in the intended direction of unwinding of the wire, then placing the coils in their unwinding position.

The invention also provides a device for winding a wire and unwinding it freely and without twisting, characterized in that it comprises two substantially identical spools, means for moving these spools between a first position where they are aligned on the same axis and substantially contiguous, and a second position where they are side by side with their axes substantially parallel or forming between them a relatively acute angle, and means for winding the wire on the two spools in their first position and for moving the wire periodically from one reel to the other during the winding so that the loops of wire formed on the reels cross substantially at the same point between the reels.

 According to other characteristics of the invention, more particularly aimed at applying to a fishing reel, means for driving the reels in rotation about their common axis are carried by a cover movable between a first position where these means drive are engaged with the coils in their first position1 and a second position where these means are released from the coils and the cover allows the coils to move from their first position to their second position.

According to yet another characteristic of the invention, also aimed at applying to a fishing reel, the hood is mechanically connected to at least one of the spools, so that the displacement of the hood from its first position to its second position causes moving the coils from their first position to their second position, and vice versa.

The invention also relates to a fishing reel, characterized in that it comprises a device for winding and unwinding of wire of the type described above.

In the description which follows, given by way of example, reference is made to the appended drawings, in which FIG. 1 schematically represents a device according to the invention, shown in its position of wire winding; Figure 2 is a top view of the device of Figure 1; Figure 3 shows the device of Figure 1, but in its unwinding position; Figure 4 is a top view of the device of Figure 3; FIG. 5 schematically represents a first embodiment of a fishing reel comprising a device according to the invention; and Figure 6 shows a second embodiment of a te-l reel.

Reference is first made to FIGS. 1 to 4, which illustrate the essential characteristics of a device according to the invention.

This device comprises two substantially identical coils 10 each having a cylindrical peripheral surface 12 for winding a wire 14. These coils are connected together by a hinged device or the like 16, defining a hinge or pivot axis 18 which is substantially tangent to the cylindrical surface 12 of each coil, at an axial end thereof.

By pivoting one or two coils 10 around this axis 18, the coils can occupy either the position shown in Figures 1 and 2, which is the wire winding position, in which they are substantially contiguous and aligned on a common axis 20 which is also the axis of the cylindrical surfaces 12, ie the position represented in FIGS. 3 and 4, which is the position of the unwinding of the wire and in which the axes 20 of the coils form an acute angle between them or are substantially parallel to each other.

The device according to the invention also comprises means for winding the wire 14 on the coils, which can be constituted, as in the example shown, by a crank 22 for rotating the coils around their common axis 20 in the position of Figures 1 and 2, and a wire guide 24 disposed above the coils and directing the wire 14 towards the coils substantially perpendicular to the axis 20 of rotation thereof. The wire guide 24 can be moved, parallel to the axis 20, in an alternating movement synchronized with the rotation movement of the coils when these coils are fixed in translation on their axis of rotation, or else the wire guide can be fixed, in which case it is the coils 10 which move along their axis. 20 according to an alternating movement synchronized with their rotation.

The wire winding process is as follows
The coils 10 being in the position shown in FIGS. 1 and 2 and the wire being already partially wound or simply fixed by one end on one of the coils, the coils 10 are driven in rotation around. the axis 20 in a determined direction, by means of the crank 22. The wire 14, passing through the wire guide 24, is for example brought first of all to one of the coils 10 and wound on this coil, for example on a lap. At the end of this winding, the wire guide 24 is moved parallel to the axis 20 to the right of the other coil 10 and the wire 14 is wound, also about one turn, on this other coil. -wire 24 is brought back to the right of the first reel 10, and the wire 14 is wound again on this first reel, undergoes a turn, after which it is brought back to the right of the other reel 10 and is wound there on a turn , And so on.

The wire 14 wound in this way on the coils 10 forms loops 26 which cross substantially at the same peripheral point 28 between the two coils 10, radially in line with the hinged device 16.

For the unwinding of the wire, the reels 10 are positioned around their common axis 20 of rotation so that the point 28 of crossing of the wire is radially oriented in the intended direction of unwinding of the wire, for example in the direction of the guide- wire 24. The coils 10 are then in the position shown in FIG. 1.

By pivoting about the axis 18 of the hinged device 16, they are then brought into the position shown in FIG. 3, in which the loops 26 of wire wound on the spools substantially form superimposed "8" s and are moreover relaxed, especially if the hinge is set back from the periphery of the coils. I1 then suffices to exert on the wire 14 a weak traction in the direction indicated by the arrow
F to unwind it effortlessly.

During this unwinding operation, the thread is not twisted, because the twist caused by the unwinding of a turn of thread on one of the spools 10 is automatically canceled by the equal and opposite twist caused by the next round of thread on the other spool 10.

In other words, the wire wound on the two spools 10 by entrainment of the latter around their common axis 20 of rotation undergoes no twisting, and the twisting caused by the unwinding of each "8" of yarn from the spools placed in the position of Figures 3 and 4 is generally zero.

To ensure correct operation of the unwinding device, it is necessary that the loops 26 of wire cross over the hinged device 16. In practice, the loops 26 do not cross at a single point 28, but form a zone of more or less extensive crossing, the center of which is point 28.

Referring now to Figure 5, which schematically shows a first embodiment of a fishing reel for rods, comprising a wire winding and unwinding device according to the invention.

In this embodiment, the two coils 30 are associated with two covers 32 mounted on either side of the coils and fixedly connected at their lower part to rotary shafts 34 parallel. On these shafts 34 are pinions or toothed sectors 36 which are engaged with each other. On each shaft 34 is fixed at least one finger 38 extending radially and ending in an elastic latching means 40 intended to come to engage and tighten a transverse rod 42 of the associated coil 30. The transverse rod 42 extends in through an axial end of the coil 30 and is for example carried by two parallel arms forming part of the hinge device 44 by means of which the two coils 30 are connected to each other.

 The means 45 for rotating the coils, shown schematically in the drawing, are carried by one of the covers 32 and include a crank 46 whose rotational movement is transmitted by a perpendicular shaft 47 and pinions returning to a rotary part 48 carried by the cover 32 and intended to automatically come into engagement with the corresponding coil 30 when the latter is in the winding position shown in solid lines in FIG. 5.

The other cover 32 carries free rotation an identical part 48 also engaging with the other coil 30 in the winding position. In this position, the coils 30 are rotatably supported by the covers 32.

A wire guide 49, movable in reciprocating movement as indicated by the arrow 50, is provided for moving the wire 51 from one reel 30 to the other during winding.

For unwinding, one of the covers 32 is moved aside by hand by rotating it in the direction of the arrow 52, around the axis of its shaft 34. This movement is transmitted by the pinions or toothed sectors 36 to l other hood. Simultaneously, the fingers 38 are pivotally moved around the axes of the shafts 34 and their latching means 40 engage the cross-dirty bars 42, which causes the coils 30 to move into their position shown in center line (position unwinding). As soon as it clicks into place, the coils 30 have been released from the parts 48 carried by the covers 32.

Before the covers 32 are opened and the coils 30- tip over, these coils must of course be stopped in an angular position such that the crossing of the wire loops is oriented towards the wire guide 46. For this, a system conventional non-return allows, by driving the coils in rotation in the opposite direction of the winding, to immobilize them automatically in the desired angular position.

A spring (not shown) is advantageously mounted between the coils 30, so as to be energized when the coils are moved from their winding position to the unwinding position. The tension of the spring goes through a maximum during the displacement of the coils, then decreases slightly, so that the unwinding position is stable.

To return to the winding position, it suffices to bring the covers 32 closer, after which the relaxation of the spring automatically and quickly brings the covers and the coils to the position shown in solid lines. At the end of this return movement, the parts 48 carried by the covers return to engagement with the coils, and the latching means 40 at the ends of the fingers 38 release the rods 42 from the coils and move away therefrom
Referring now to Figure 6 showing a second embodiment of a fishing reel for rods.

In this embodiment, the two coils 60 are, in their winding position, suitable for being driven in rotation about their common axis 62 and to be moved in reciprocating motion along this axis by a conventional device. drive carried by a hood 64 in the shape of a bell. This cover is pivotally mounted around a cylindrical rod 66 and can be connected by a system of levers 68, 70, 72, 74 to the lower coil 60. One end of the first lever 68 is integral with the cover 64, while s another end is articulated on one end of the second lever 70, the other end of which is articulated at an intermediate point of the lever 72. One end of this lever levers around a fixed axis 76, while its other end comprises means 73 for elastic snap-fastening on a transverse rod 75 carried by one end of the last lever 74, the other end of which is pivotally carried by the internal surface of the lower coil 60.

The displacement of the cover 64 from its position shown in solid lines in its position represented in an axis line firstly causes the means 73 of the lever 72 to snap onto the rod 75 of the lever 74 and then, via the levers 68, 70, 72 and 74, the pivoting of the lower coil 60 around the axis 78 of the hinged device which connects it to the upper coil 60.

 The return of the cover 64 to its position shown in solid lines firstly causes the system of levers to return the lower spool 60 to its winding position shown in solid lines, then the release of the rod 75 by the means 73, and the release of the levers 68, 70, 72 sufficiently to allow the rotation of the coils.

In the winding position, the lower reel 60 is kept automatically attached to the upper reel, by appropriate means.

As in the previous embodiment, a spring can be provided between the two coils, to cause a rapid return to the winding position.

The method and the device according to the invention apply to the winding and unwinding of a wire of any section, circular, flat or other.

Claims (12)

Claims.  1. Method for winding a thread and unwinding it freely  and without twist, characterized in that it consists on the one hand,  to wind the wire, to have two sensitive coils (10)  identical identical aligned on the same axis (20) and substantially contiguous, to guide the wire (14) substantially perpendicular to the common axis (20) of the coils, to wind it on a first coil (10), to move it substantially parallel to said axis (20) to bring it to the second reel (10) and to wind it there, then to move it in the opposite direction parallel to said axis (20) to bring it back to the first reel (10) and to the '' winding there, and so on, so that the wire (14) wound on the coils (10) forms loops (26) crossing substantially at the same peripheral point (28) between the two coils (10) joined, and, on the other hand, to unwind the wire, to arrange the two coils side by side but with their axes (20) substantially parallel or forming an acute angle between them and to exert on the wire (14) a traction to starting from a point close to the crossing point (28) of the loops (26) of the wire wound on the spools. 2. Method according to claim 1, characterized in that it consists in winding the wire (14) substantially over a revolution on a reel (10) before moving it to the other reel (10) and winding there on substantially one lap. 3. Method according to claim lou 2, characterized in that it consists in passing the coils (10) from their winding position to their unwinding position of the wire by pivOtementd'au at least one of the coils around an axis (18) extending in the immediate vicinity of the point (28) of crossing of the loops (26) of wire, perpendicular to the plane defined by this point (28) and by the common axis (20) of the coils in their position winding. 4. Method according to one of claims 1 to 3, characterized in that it consists, for winding the wire (14) on the reels (10), to drive the reels integrally in rotation about their common axis ( 20) and, at the end of the winding, to immobilize them in rotation in an angular position such that the point (28) of crossing of the loops (26) of wire is radially oriented in the intended direction of unwinding of the wire, before placing the coils (10) in their unwinding position. 5. Device for winding a wire and unwinding it freely and without twisting, characterized in that it comprises two substantially identical spools (10), means for moving these spools between a first position where they are aligned on the same axis (20 ) and substantially joined and a second position where they are side-by-side with their axes substantially parallel or forming an acute angle between them, and means for winding the wire (14) on the two spools (10) in their first position and for periodically moving the yarn from one spool to the other during winding so that the loops (26) of yarn formed on the spools intersect at substantially the same point (28) between the spools. 6. Device according to claim 5, characterized in that it comprises means for driving the joined coils (10) integrally in rotation about their common axis (20), for winding the wire on the coils. 7. Device according to claim 5 or 6, characterized in that it comprises means for moving the coils along their common axis (20) in reciprocating motion synchronized with their rotational movement. 8. Device according to claim 5 or 6, characterized in that it comprises a thread guide (24) and means for moving the thread guide parallel to said common axis (20) of the coils, according to an alternating movement synchronized with the rotational movement of the coils (10). 9. Device according to claim 6, characterized in that the means for driving the coils in rotation are carried by a cover (32, 64) movable between a first position where these enttlinement means are engaged with the coils in their first position, and a second position where these means are released from the coils and the cover allows the coils to move from their first position to their second position. 10. Device according to claim 9, characterized in that the cover (32, 64) is mechanically connected to at least one of the coils (30, 60) so that the displacement of the cover from its first position to its second position causes moving the coils from their first position to their second position, and vice versa.  11. Device according to one of claims 5 viola, characterized in that the coils are connected to each other at one of their ends and mounted to pivot one relative to the other around at least one axis (18, 78) substantially tax on the periphery of the coils and passing in the vicinity of the crossing point of the wire loops. 12. Fishing reel, characterized in that it comprises a wire winding and unwinding device according to one of claims 5 to 11.