FR2561872A1 - Device for protecting the line on a fishing rod - Google Patents

Abstract

The device makes it possible to protect lines at moments of extra tension by unwinding a reserve length of cord 15 which thus preserves the line. It consists of a housing 1 inside which the cord 15 is wound on the roller 10. This cord 15 is guided along the rod and is attached to the line at the end of the rod. At moments of extra tension on the line, a portion of the cord 15 is released by the device with a necessary ever-constant tension on the cord 15, and when the extra tension disappears, the released cord 15 is automatically wound back.

Description

 This invention relates to an adjustable device which, attached to a fishing rod, makes it possible to avoid breaking the line (24) retaining the fish in the event that a momentary overload occurs on the line (24). example by a fish pairing which wants fur, is attenuated by the invention by release of the wire (15), of robustness little or very superior to that of the line (24), at a fixed tension, adjustable and therefore slightly lower than the maximum admissible voltage by the line (24).

 Previously, such a device did not exist to my knowledge. The fisherman tied a line at the end of the rod and had to release it when an overload on this line appeared. He could lose a catch if it was greater than expected or if by fatigue or underestimation, we do not was unable to release the cane quickly enough. Some fishermen put an elastic to cushion precisely on such jolts but this elastic has the disadvantage of giving flexibility to the line which makes losing reliability on a shoeing.

 The invention, it, contrary to this drawback mentioned with the elastic allows to give a hooking as effective as desired from the effective tension of the line (24), because the invention releases the wire (15) only in the presence of an already strong and adjustable tension.

 This tension which makes it possible to release the wire (15) is also present during the unwinding of the roller (10), containing the reserve wire (15) in the same way as a brake which always acts in the same way.

 The length of the reserve wire (15) is to be determined depending on the fishing, but a length of 20 cm already saves catches.

 This invention also makes it possible, when part of the wire (15) has been unwound, to automatically rewind without the fisherman lnternentlon, and this as soon as the overload on the line (24) has disappeared. to a line overvoltage (24) consecutive and occurring very shortly after the first.

This invention can be used in the following way: it can be mounted on the fishing rod at the level of the "handle" (21) (where the manipulator holds it). The wire (15) is wound on the roller (10) , which is intended: -or to be mounted on a bearing (6)
-or to be mounted in a smooth bearing on the aisle t5), with a
adequate contact surface for friction with the disc
brake (7).

The wire (15) would circulate along the rod, held by rings substantially similar to those used on throws and taut because of its blocking at the end of the rod by a ring (23) or device (connecting to the line of the fisherman who remains classic) who can not pass through the guide rings of the wire (15) and the tension exerted by the invention permanently in order to rewind the wire (15).

 This ring (23), which serves as a link between the wire (they) running along the rod until the invention and the line (24) that the fisherman hooks on it is, so to speak, mechanically integral with the tip (22) fishing rod and therefore does not prevent a fisherman from exercising his talents.

 The device according to the invention is, on the other hand, insurance against breakage in the event of the fish being struck too violently for the speed of the fisherman.

 The invention will be better understood by referring to the figures.

Figure 1 showing a partial section of the device and where we see
appear the numbering of the constituent parts of the said
device and here named t
(1) - case i it supports the axis (5) and the containing part (2)
(2) - containing part s containing part of the helical system
(2/11/8)
(3) - adjustment screw t of the wire release tension (15).

 (4) - nut t nut holding a cap (9) on the axis (5).

(5) - axis: main axis
t6) - bearing i ball bearing or other which can be
deleted If little friction force is provided
parasites between the axis (5) and the roller (10).

(7) - brake disc: brake disc with a studied surface
for friction, of known friction constant,
and another surface creating a non-return system with
the contained part (8) of the helical system (2/11/8).

(8) - contained part s contained part of the helical system
(2/11/8).

(9) - cap s protective cap for the roller (10)
accidental friction.

 (10) -galet s roller on which the wire (15) is wound.

(11) -cylinder t cylinder serving as a lever on which t
the forces of the adjusting spring (14) and the
rewinding spring (17); serving cylinder
of intermediary between the containing parts (a) and
contained (8) to form a helical system (2/11/8).

(12) - adjusting nut i tension adjusting nut
adjusting spring (14).

(13) -circlipe t circlips or other stop system in
translation of the roller (10) on the axis (5).

(14) - adjustment spring t spring which remains at tension
desired and constant determining the resistance to offer to the
unwinding of the wire (15).

(15) -wire i line support wire (24) and reserve. he
can be unwound from the roller (10) and rewound there giving
possible extension of the line (24) .This wire (15)
schematically can also be a cable in the field
general (marine, mountaineering for example) that we want
protect from a temporary overload likely to
to break up.

(16) -guide wire: used to direct, the wire (15), leaving the
device, in a good way and in a way to avoid
possible entanglement.It may consist of a thread of
rigid iron.

(17) -rewinding spring: wire rewinding (15)
on the roller (10).

(18) -return mechanism t allows rotation in a
one direction of the contained part (8) and of the brake disc (7)
between them ; this mechanism can be partly attributed or
entirely in both of the parts contains (8)
and brake disc (7) depending on the system used for this
production.

(19) - reading washer t allows quantitative assessment
adjustment.

(2/11/8) - helical system t formed of parts i part
container (2) cylinder (11) and contained part (8).

Figure 2 showing an example of use for fishing, with s
(20) -chematized invention
(21) - fishing rod handle
(22) -scion
(23) -connection ring between the wire (13) and the line (24)
which can be replaced by a more sophisticated device
(24) -line in general
Figure 3 defining the constantle k4 which is
or P - pushing force resulting from 11 I pulling force
of the adjusting spring (140. This rapprt K1 being a function of
angia α indicated.

Figure 4 defining K2 = # / # or # - disk pressure force
brake (7) on the roller (10) and defining - torque due to
friction of the brake disc (7) on the roller (19).

Figure 5 giving the constant K3 to be defined by a subsequent calculation
= d2 / d @ or d2 - distance between the axis of the parts (8),
contained part, and the point of action of F2 on the cylinder (11)
(P being the tension force of the rewinding spring
of the roller (10)) and di - distance between the axis of the part
contained (8) and the point of action of # on the cylinder (11)
Figure 6 defining Cr and R
Cr = torque due to the rewinding spring (17) only, on
the roller (10) and R, the radius between the axis of the roller ((10) and the
attachment point of the rewinding spring (17) on the roller
(10).

Figure 7 showing the gravity of a system allowing only one direction of
rotation between the following two parts: the brake disc (7)
and the contained part (8). Here according to the principle that we use
will read, this anti-return system (18) is 5m,
- or an additional accessory
-only an assembly of parts belonging to both
parts: the brake disc (7) and the contained part (8).

Marked M: surface suitable for the expected friction and
estimated.

Figure 8 showing the helical system (2/118) in half-section, view
along the axis (5) and an example of fixing the springs of
adjustment (14) and rewinding (17) on the cylinder (him) to
determine according to the constants Ki s and and and and giving
an example of assembly to assess the adjustment
done on the slide
Figure 9 giving the view along AA giving an example of the shape of
the nut (12).

Figure 10 giving a view along BB giving an example of the shape of the
reading washer (19) and its graduations.

Figure 11 giving a view along CC giving an example of the shape of the
adjustment life (3).

 We now enter into a description of the operation of this device.

 For the tension of the wire (16), the roller (10) is biased in the direction of a rotation, which is such that it tends to rotate the contained part (8) in the direction which facilitates its detachment from the disc. brake (7) due to the helical system (2/11/8). And during the tension of the wire (15) the brake disc (7) is locked in rotation relative to the contained part (8) by the effect of the snti-return system existing between the brake disc (7) and the contained part (8).

Consequently, the roller (10) only turns if the torque created on Iu by the force exerted on the wire (they) is greater than the friction torque with the brake disc (7) added with the torque on the roller (10) of the to the rewinding spring (17); other friction is considered negligible because it is made so
-or by the presence of a ball bearing or other
-or by the material used for the axis (5) and the roller (10)
and their contact surface.

The force of the friction of the roller (10) on the brake disc (7) is to be determined by the action on an adjustment screw (3) which tightens or relaxes the adjustment spring (14). adjustment (14) is transformed into a thrust force of the brake disc (7) on the roller (X0) via the helical system (2/11/8) in a K1 ropport.

 If the roller (10) turns, it tends the rewinding spring (17).

To avoid an increasing effort on the wire (15) to rotate the roller (10), the other end of this rewinding spring (î7) is connected to the cylinder (11) in a distance ratio K3 so as to deduce from the 3 F (wire tension (13) - F ##, frictional force #, winding spring tension (17) = #, constant force = Fde)
We now resume this reasoning in order to determine this time the value of K3 according to the other parameters.

torque due to the adjusting spring (14) on the roller (10) = force given by the adjusting spring (14) =
Calculation of the friction torque given by the adjusting spring (14)
C = k1 x K2 x
It is assumed that the tension of the rewinding spring (17) is zero at the start, the rewinding being carried out fully.

lu s'arrangeant pour que i

If now the roller (10) turns a little and stops, we s:
The rewinding spring (17) which has tightened by a quantity which gives a torque on the roller (10) of value / = Cr
Tensioning force of the rewinding spring (17) acquired during the rotation: F2 = Cr / R knowing that: F1 = C / K1 x K2
To remove Cr from C, the force must be removed from F1: Cr / K1xK2 = F3
Op can do this by arranging thanks to a lengthener ratio on the cylinder (11) that F2 subtracts the necessary force from F1
We have @ F3 / F2 = d2 / de
F3 must apply to the same point as F1 so done:

read arranging so that i

We will have a constant effort necessary on the wire (15) to rotate the galelt (10).

 The invention makes it possible to determine a maximum for the load of the line (24) or leader.

 When an overload has taken place and has disappeared, the rewinding spring (17) tends to bring back the roller (10) which will rotate in the winding direction but with the brake disc (7) which is integral with the roller (10) by friction, with respect to the ease of rotation between the brake disc (7) and the contained part (8), because the brake disc (7) must be provided with a sntl-return system with respect to the contained part (8) so that the brake disc (?) can rotate due to the direction of rewinding of the wire (15), relative to the contained part (8).

 The invention comprises a protective cap (9) held on the axis (5) for example by the nut (4).

 It is ibterressant to use light materials everywhere, especially on the roller (10) to minimize the torque due to its inertia. It should be specified that the action of the rewinding spring (17) on the roller (10) can be direct or what is preferable by a system multiplied by the force of the rewinding spring (17) on the roller (10) .

There is thus a rewinding spring (17) which exerts a greater tension than the maximum admissible tension prr the wire (150, which allows to have the adjustment spring (14) more rigid; which also requires to have the product: K1 K2 is still weaker, but this would allow more wire to be released (15)
This device can be used generally for any target control in transient overvoltages in all fields provided that the device is given the sizes and resistances necessary for its use, for example in the field of sailing or mountaineering for the protection of ropes in the event of a mountaineer's fall.

 All these parts are manufactured in the shapes and dimensions that are the easiest to achieve while respecting their aims in the invention, according to the most suitable methods and from the lightest material while retaining the necessary robustness.

Claims (9)

R E V E N D I C A T I O N S 1) Protection device by overload limitation for example of the  line (24) on a fishing rod characterized in that it comprises  a case (1) adaptable on the handle of a fishing rod by the end  of the axis (5) on which are mounted t  - a device for adjusting the tension of the adjusting spring (14)  being for example the adjusting screw (3) associated with a nut (12)  and a reading washer (19),  - an axis (s) which supports the whole mechanism,  - and the containing part (2) which, forming a helical system  (2/11/8), allows the contained part (8) to exert an effort to  axial thrust on the brake disc (7) via a  non-return system (18) and under the action of the adjusting spring  (14) on the cylinder (11); the brake disc (T) in turn,  transmatting the pushing force, creates a friction force  opposing the rotation of the roller (10) but this roller (10) under the  pulling the wire (15), can however turn while defeating the effort  rubbing due to the brake disc (7) and turning, tighten the  rewinding spring (17) which will allow upon termination  traction on the wire (15) to rewind this wire (15), which  goes through a guide (16) on the roller (10) which can be mounted on  bearing (6) to reduce its frictional force with the area (5),  - And a stop assembly in translation of the roller (10) on the axis (5)  can be a circlip (13)  - And a cap (9) to protect the roller (10) and a nut (4) from  fixing the cap (9). 2) Device according to claim 1 bharacterized in that it allows a  adjustable voltage threshold obtained through all of the  parts z adjusting screw (3) adjusting nut (12) reading washer  (19) which vary the tension of the adjusting spring (14) required  wait for rotation of the roller (10). 3) Device according to claim 1 or 2 characterized in that the  resistance offered by the roller (10) to the running of the wire (15) is  constant during unwinding although the winding spring (17)  tightens thanks to the fact that the rewinding spring (17)  is fixed on the cylinder (ii) respecting a distance ratio 3 to be defined during production

 4) Device according to any one of the preceding claims  characterized in that the parasitic forces which can be called  bonding, at the level of the friction surface between the brake disc (7)  and the roller (10) which exist at the start of the sliding between the two  parts are made negligible by an alpha angle; adequate allowing  during a tensile force on the wire (15), a tendency to  reduction in the force created by the adjusting spring (14). 5) Device according to any one of the preceding claims,  characterized in that it includes a system allowing only one  direction of rotation (non-return system (18)) between the piece (8)  and the brake disc (7) which locks in order to force the roller (io)  to overcome the friction it has with the brake disc (7) in the case  where the wire (13) has a tension which becomes too impertinent and which must be  therefore limit and which de / unlocks and offers little resistance to rotation  when it comes to rewinding the wire (15) under the action of the spring  rewinding (17) thereby giving automatic rewinding. 6) Device according to any one of the preceding claims,  characterized in that it has a wire guide (16) and a cap (9)  to protect the roller (10) from accidental and harmful contacts. 7) Device according to any one of the preceding claims,  characterized in that the axis (5) can be fixed with two collars on  the fishing rod fairly quickly.  wire (they) available.  -or multiplied, which allows a greater length of  -or direct on the roller (10)  characterized in that the action of the rewinding spring (17) is  8) Device according to any one of the preceding claims  adjustment (14).  rewind spring tension (17) and spring tension of  by friction of the brake disc (7) on the roller (io) depending on the  characterized in that the tension on the thread (15) is checked  is transformed into a pushing force by the helical system (2 / tl / 8) 10) Device according to any one of the preceding claims,  characterized in that the force of rotation of the adjusting spring (14)  9) Device according to any one of the preceding claims,