MECHANISM FOR THE AUTOMATIC PREVENTION OF THE REVERSE MOTION IN DEPENDENCE OF THE ANGULAR VELOCITY AND ANGULAR ACCELERATION, E.G. FOR FISHING-REELS

Abstract: Mechanism for preventing the rotary motion in dependence of the angular velocity and angular acceleration, respectively, with a complete grasp, e.g. for inhibiting the reverse motion of fishing reels. The mechanism can be switched over into a mode of operation, in which unidirectional grasp may be maintained even in case, if n = O. The solution according to the invention ensures absolute safety under any conditions. At an intensive cast the rotating part carrying the pull-up arm is rotating in a reverse direction, and reaches in a short time the critical values of angular velocity and angular acceleration resulting in the automatized activity; in such a manner i.e. by the instant braking it can be inhibited that due to accumulated kinetic energy the rotating part should further rotate resulting in an entangled line. The two-way selector arm enables the selection of an instant or automtic mode of operation. By using the invention, material losses due to the damaged damyl may be avoided, time-consuming re-assembly becomes superfluous. There are further advantages involved: the design is simple, operation is noiseless, in course of winding at the instant action braking moment does not arise, as it happens with the reels with the traditional ratching mechanism.

Description: Mechanism 3?or the Automatic Prevention of the Revers Motion in Dependence of the Angular Velocity and Ang lar Acceleration, e.g. for Pishing-Reels The invention relates to a mechanism for Pr venting the rotary motion in dependence of the angula velocity and the angular acceleration with an unidire tional complete engagement, e.g. for the automatic pr vention of the reverse motion of fishing-reels, which may be switched-over into a mode of operation, in whi unidirectional complete engagement becomes possible even in case of n = 0. With ishing-reels with a rim- - furtheron fishing-reels - winding up of the casting line takes place by rotating the drivearm in a counte clockwise direction, while winding down is performed in a clockwise direction, if the drivearm is arranged on the left side. Mechanism for preventing the revers motion is to be found in every fishing-reel, the me- chanism is giving either a rasping voice or it does n give a sound at all. With most types the mechanism can be switch -off, if not, the system for the prevention is mostly soundless. Pishing- eels are also known, with which prevention of reverse motion is controlled by a three -way selector switch; by means of said switch three modes of operation can be selected: Position 1: Winding becomes possible and it is perfor ed noiseless, reverse motion is possible; Position 2: Windig becomes possible, it takes place - noiseless, reverse motion is prevented; Position 3: Winding becomes possible, a rasping sound is to be heard, reverse rotation is pre- vented. The mechanism for inhibiting reverse motion has to perform the most important function, in so far as, when the fish is laking the bait, the forces of cast should be transferred to the hook through the angle rod and the casting line in order to achieve successful engagement, why, in course of a disengagement, the streched line is spinning back the drivearm and thus the rotating part, instead of drawing the fish outwards, accordingly the line will be wound off. If often happens that the cast-line has to be reeled down from the reel from the following reasons: - the angler v/ants to step back with his angle rod but without pulling the rod-and line backward, - the da yl-line running into the water has been over- streched and he intends to loosen it, - he wants to increase the slack of the device indicatin the taking of the bait. Considering the tensile strength of the line, it does not seem to be e pedient to open the set brake too frequently in order to pull down the line from the drum, since resetting is wearisome and time consuming, at the same time, if setting is not performed with the required accuracy, with a loose brake casting becomes a failure and the line will be also entangled. It sae s to be more convenient to solve the charge of the line by releasing the mechanism serving or the protection against reverse motion. If switching does not take place - an this happens even to the most experienced angler - the phe- nomenon is taking place, as f&lows: In course of the intensive cast the strefohed damyl-line and the elastic end of the angle ro are ro¬ tating wit a constant angular acceleration the roller of the pull-up arm around the drum, the da yl is wound-o meanwhile the unimpeded drive-am performing a reverse Q-..PI tion is also increasingly a ccelerated in accordance wit the transmission ratio. At the end of the casting move¬ ment no force is staying at disposal for pulling out th damyl wounding off from the drum from the rings of the rod, however, the whirling components are further rotat ing as a cnnsequence of their accumulated kinetic energ a large entangled piece of line will be the result and the damyl becomes useless, involving the following dis¬ advantages: - a considerable material loss arises, since the cast¬ ing line becomes generally irrecoverable,. - re-assiembly is wearisome and time-consuming, - with all probability the fish is also going to be los since due to the entangled damyl the drivearm cannot be rotated either forward or backward. With this phenomenon the most experienced ang ler has to reckon with, even with the most up-to-date reels. The aim of the invention is partly to elimina the disadvantageous features of the known solution, par ly to develop a mechanism for preventing automatically the reverse motions, and thus obtaining most successful angling, which - after having reached the critical pair of values of the angular velocity and angular aecelera- tion - is automatically actuated. Accordingly, the invention relates to a mecha¬ nism for preventing the rotary motion in dependence of angular velocity and angular acceleration, with an uni¬ directional complete grasp, e.g. for the automatical in- hibition of the reverse motion of fishing-reels, charac¬ terized in that it is provided with one or more fly weight axes, with a friction lining promoting the wedgin -in of the fly weight/s/ rotating around said axes, with a detent pin confining the movement of the ' ly weight in one direction, the spring driving the fly weight to the detent pin, furtheron with the base plate carrying the components mentioned above and mounted onto the rotating part of the fishing reel, as well as v/ith the pot having been fixed onto the house of the reel and promoting wedging-in. With a further embodiment of the invention being most preferable from the point of view ' of the useful life, the fly weight having been provided with the friction lining and rotating around the axis is form as a roller fly w ght, which is kept in the desired posi tion by means of the roller-springs having been engaged in the two ends thereof; said springs are bound to the roller-spring pins having been pressed into the base plate with the key seat. With a further preferred embodiment - whether it is containing a fly weight v/ith a friction lining or a roller fly weight - the construction can be provided with a selector arm for selecting the mode of operation, the two positions of which enable either an automatic inhibition of the reverse motion in dependence of the angular velocity or angular acceleration, or an immediat inhibition of the reverse rotation, while keeping in the proper position is performed by the aid of arrester ball and springs. The tightening spring pins ensure the re- quired pre-stress of the fly weight springs. In igures 1 and 2 the sectional view of the mechanism according to the invention - serving for the automatic inhibition of reverse motion - is to be seen. The inhibiting element is formed by the fly weight 4 having been provided with the friction lining 5 and ro- tating around the axis 3; in a standstill the fly weight 4 is kept in a proper position at the detent pin 10 by means of the fly weight spring 8. The components enumera above are. carried by the base plate 7 having been mounte onto the rotating part 1. The pot 2 enabling inhibition — G?v? is fixed on the house 6 of the reel, being in standst Y/ith the construction having been illustrat in figures 4 and 5 and being preferable from the point of view of the prolonged useful life, instead of the fly weight 4 having been provided v/ith the friction li ing 5 and rotating on the axis 3 a roller fly weight 1 has been applied, which is kept in stillstand by the fly weight springs 12 in the nest having been formed in the base plate 14 with the key-way. /The position of the spring and the roller is indicated by a discon¬ tinuous line in the drawing./ The roller springs 12 are bound to the rolle spring pins 13 having been pressed into the base plate 14 with the key-way. A further preferred embodiment - as a mater of fact a further developed orm of the embodiment ac cording to figures 1, 2 and 4, 5 - is to be seen in fi gures 6 to 9; th_s version is completed with a selector arm 15 for selecting the mode of op'eration, which enab les the application of the automatic inhibiting means as a device for the immediate prevention of reverse mo tion. The two stable positions of the selector arm 15 are ensured by means of the arrester springs 17 and th arrester balls 18, carrying the springs pins 16 and 20 respectively, the task of which is to stress the fly weight springs 8, 12 to the required extent. The mechanism according to the invention ope rates as fLlows: With the embodiment to be seen in figures 1 a 2 in case of intense casting angular acceleraiaon is so high, that the rotating part 1 rotating in a reverse di rection "B" and carrying the pull-up arm and the base plate 7 is reaching the critical values of angular ve¬ locity and angular acceleration, respectively, in a sho time and not more, than totally 5 cm of the line are wound-off, till the automatic operation is actuated. Simultaneously with the increase of the angular velocit and angular acceleration, respectively, within the range from 0 to the critical value, the resultant of ce rifugal and tangential forces overcoming the force of the fly weight spring 8 also increases, as a consequenc the fly wάghts 4 are rotating around the fly weight axe 3 and approach v/ith their friction linings 5 the inner surface of the pot 2 having been fixed to the house 6 of the reel and reach it. /In this second - if the angl oc according to figure 3 is-properly chosen - the fly weights are wedged-in, the rotating components are loos ing their kinetic energy and arrive at. stillstand./ In an expedient manner the mechanism accordin to the invention is to be dimensioned so, that at the very low £ values the critical value of the dominant angular velocity should correspond to the nu er of revolutions n = 2-3 /sec of the swivel arm in such a ma ner, with values lying below said value by means of the drivearm having been rotated reversely damyl can be cha ged without the activity of the automaton. The embodime shown in figures 4 and 5 operates, as follows: The roller fly weights 11 - being most advan¬ tageous from the point of view of useful life - are arranged on the fly weight springs 12, and under the influence of the increasing centrifugal and tangential mass forces they are moving from the nest in the base plate 14 with the key-way towards * e pot 2, against the spring forces, and after having reached the inner surfa thereof, engagement is taking immediately place by mean of the base plate with the key-way and the pot. In figures 6 to 9 a further preferred embodi¬ ment is to be seen, with which the previously illustra¬ ted enbodisment - see figures 1, 2, 4, 5 - is completed with the selector arm 15 for the selection of the mode of operation, by the aid of ?/hich both constructions can be operated either automatically or in instant mo of operation. In both cases, by means of the spring-p 16, 20 - having been arranged on the selector arm 15 and exerting the stress required - the fly weight sp 8, 12 are pulling the fly weights 4, 11 between the b plate 14 with the key-way and the pot 2. In an automat cal mode of operation the selector arm 15 keeps the distance between the fly weights 4, 11 and the pot 2 by means of the fl weight springs 8, 12; the fly weigh can reach the pot only under the influence of the cent rifugal and tangential mass orces, v/hich are corres¬ ponding to the critical pair of values of the rotating part 1, i.-e. the numer of revolutions and the angular acceleration, respectively. As it becomes, obvious, the mechanism accord to the invention guarantees failure-free angling under all circumstances; the damyl-line is protected against damages, accordingly no material losses arise, ti e- -consuming reassembly becomes superfluous, and last bu not least, the fish is not going to be lost. By the aid of the selector arm beside the automatic operation instant preventbn of the reverse m tion becomes also possible. The construction has several other advantage so e.g. i spite of the preferable service it has a mos simple design, it operates noiseless, in course of winding, when operated in an instant inhibiting mode, braking moment does not arise, as it happens With the traditional reels with a ratchet mechanism. The figures are as follows: Figures 1 and2 the automatic mechanism for the preven¬ tion of reverse motion, put into action when reaching a predetermined value of angular speed and angular acceleration, respectively, with a complete grasp by means of the fly weights with the fric- tion linings /in the instant of graspin gure 3 the geometrical dimensions of the echa nis according to the invention, operat with fly weights v/ith friction linings, as well as the forces arising during th operation, figures 4 and 5 the mechanism according to the inventio automatically actuated at a predetermin number of revolutions and angular accel ration, with a complete grasp, by means the roller fly weight having been suspe on springs /in the instant of grasping/ figures 6 and 7 mechanism for preventing reverse motion an automatical or instant mode of opera tion at a predetermined number of revol tions and angular acceleration, respec¬ tively, in dependence of the position o the selector arm, with a complete grasp, by means of the fly weights with fricti linings /in the instant of grasping/, figures 8 and' 9 the mechanism according to the inventio with roller fly weights having been sus pended o.n springs. The forces arising in course of the operation of the mechanism for the automatic prevention of the reverse motion and moments, as well as the calculation thereof by means of the correlations and marking accord to figure 3 -' The rotating part 1 carrying the fly weights 4 and the base plate 7 can rotate in the direction "B" without hindurance. However, if the drivin * s- • moment Mx_> is rotating in the direction "A", above the critical pa of values co -£ , the fly weights - overcoming the sprin forces - are performing a rotary motion. In the instant before- the contact between the friction lining 5 the following moments exert an influence onto the fly weight 4: M = P c /o/ . 1 0 + P t /£/ l t - * r . l r The moment II- causing the acceleration of the rotating part 1 does not stop at the contact with the friction linings 5 and the pot 2 but induce the force P-JJ, accordingly JJ = f/M^/. The moments exerting an influence onto the fly weight 4: ■S 1 r.-. • I r v . + ^ JΛrI/IL x./ . 1 e ' . sinc = ._ ■ s_. . 1 e* • coscc Taking into consideration that = we arrive at the expression: _ - -... - P r . l r + . c et us suppose that cc = arc tg U, then th frictional connection becomes self-closing, accordingl geometrical -dimensions should be formed as described above. Prerequisite, for the unidirectional complet grasp with roller /figures 4, 5, 8 and 9/: __ O P

Claims: C A I M S 1. Mechanism " preventing the rotary notion whe reaching the critical values of angular velocity and angular acceleration, respectively, in an unidirectiona complete grasp, e.g. for the automatic prevention of th reverse motion of fishing reels, c h a r a c t e r i z in that it is provided with a ly weight /4/ rotating around one or ∑nore axis /3/ rotating on a circular path under the influence of centrifugal and tangential mass forces, with a detent pin /10/ restricting the movement in the opposite direction, with a spring /8/ reotating the fly weight opposite to the centrifugal and tangenti forces, furtheron it is provided with a friction lining I J I having been mounted on the fly weight and contactin the pot /2/ fixed onto the reel-house /6/ at an angle of connection /c/ ensuring sel- locking, having further a base plate /7/ mounted on the rotating part /I/ and carrying all the components with the exception ofthe reel house /β/ and the pot /2/. 2. lechanism as claimed in claim 1, c h a - r a c t e r i z e d in that the fly weights /ll/ are formed as rollers and the roller-springs /12/ having be suspended on the ends of the rolirs are acting against the centrifugal and tangential mass force, furtheron the roller-springs are bound to the base plate with the kay-way /14/ by means of the roller spring pins A3/. 3. iechanism as claimed in claim 1 or 2, c h a r a c t e r i z e d in that it is provided with a selector arm /15/ enabling an inhibition taking place when reaching the critical values of angrlar velocit^r - angular acceleration or an instant action preventing reverse notion, on the selector arm /15/ the stretching spring-pins /16, 20/ are arranged, the required positio of the selector am /15/ is ensured by means of the ar¬ resting balls /18/ and the arresting springs /1 Position numbers and references 1 rotating part 2 pot 3 fly weight axis 4 fly weight 5 friction lining 6 reel house 7 base plate 8 fly weight spring 9 screw of the axis 10 detent pin 11 roller fly weight 12 roller spring 13 roller spring pin 14 base plate with the key-way 15 selector arm for selecting the mode of operation Iβ streching spring-pin I 17 arrester spring 18 arrester ball 19 rivet 20 streching spring-pin II 1 the distance between the influence line of the centri fugal force -and the fulcrum of the fly weight 1 the distance between the influence line of the spring force and the fulcrum of the fly weight I * the distance between wedging-in and the fulcrum of th fly weight /the distance between the braking point an the fulcrum of the fly weight/ ^ wedging radius /radius of braking/ r s radius of the centre of gravity of the fly weight s centre of gravity of the fly weight c centrifugal force + the distance betv/een the resultant of the mass forces and the fulc um of the fly weight OMPI_ £ acceleration of the rotating part MΨ . the resultant of the tangential mass forces P s frictional force spring force K angle of connection C angular velocity of the rotating part AX factor of friction the mass of the one fly vsLght Ϊ_L moment accelerating the rotating part

Inventors: DRESCHER JOZSEF, SZECSENYI GYOERGY, VADASZ JOZSEF, DRESCHER, JOZSEF, SZECSENYI, GYOERGY, VADASZ, JOZSEF
Applicants: MAGYAR OPTIKAI MUEVEK
Application year: 1982
Main classification: A01K89
IPC codes: A01K89