WO2005025311A1

WO2005025311A1 - Ratchet mechanism

Info

Publication number: WO2005025311A1
Application number: PCT/SE2004/001254
Authority: WO
Inventors: Mats Sundquist
Original assignee: Mats Sundquist
Priority date: 2003-09-12
Filing date: 2004-09-01
Publication date: 2005-03-24
Also published as: SE0302448L; SE525763C2; SE0302448D0

Abstract

The invention relates to a ratchet mechanism (13) for rotary locking of a second body (21) in relation to a first body (9), the ratchet mechanism (13) comprising a gear rim (16) and at least one arm (17), which is turnably arranged around a fixing point (18) on the said first body (9) and which comprises at least one magnetic material (19) and at least one projection (20) for engagement with the gear rim (16), which is fixedly connected to, or forms part of, the second body (21) and that said second body (21) comprises a magnetic material (22). At least one of the magnetic material (19) on the arm (17) and the magnetic material (22) of the second body (21) comprising a magnet-

Description

RATCHET MECHANISM

Technical Field of the Invention The present invention relates to a ratchet mechanism for rotary locking of a second body in relation to a first body, the ratchet mechanism comprising a gear rim and at least one arm, which is turnably arranged around a fixing point on said first body and which comprises at least one magnetic material and at least one projection for engagement with the gear rim, which is fixedly connected to, or forms part of, the second body and that said second body comprises a magnetic material . The invention also relates to a fishing reel comprising a ratchet mechanism for rotary locking of a second body in relation to a first body, the ratchet mechanism comprising a gear rim and at least one arm, which is turnably arranged on the said first body and which comprises at least one magnetic material and at least one projection for engagement with the gear rim, which is fixedly connected to, or forms part of, the second body and that said second body comprises a magnetic material.

Background of the invention and prior art The background of the present invention is fishing with fishing-rods in general and in sea fishing and fishing by hand line in particular. Among other things, within these types of fishing, long lines are used that are thrown out and wound-in a great number of times during a fishing trip, which easily may extend over an entire day or over a plurality of days. A large catch of large fishes entails a hard work to get the fishes out of the water, which is trying for the fisherman. A traditional fishing-rod having a hand-driven crank also entails that the rod only can be held with one hand, since the second hand of the fisherman has to operate the crank, a handling that becomes trying with large fishes on the hook. Even to wind in a small catch of small fishes becomes a large problem for persons having certain types of handicap, which by virtue of their handicaps are incapable of using a manually driven crank and thereby incapable of winding in a fishing line at all. These situations have produced a number of attempts to solve the problems associated therewith, e.g. the fishing-rods have been equipped with electrically driven fishing reels, as is shown in, among others, US 5 088 657 and US 5 004 181. A problem with today's electrically driven fishing reels is that when these operate, the normal ratchet mechanism of the fishing reel is used, which entails that the motor has to execute additional work in order to mesh over the ratchet mechanism apart from the work to wind in the line. US 5 088 657 also has a placement of the electric drive, which gives the fishing-rod iiribal- ance and which entails that it may be in the way for the fisherman upon certain handling. The problem that should be solved is that the line reel should be locked in relation to the house when the fisherman moves the fishing-rod towards himself, i.e., when the fisherman works to create slack in the fishing line, and that winding in with low or no resistance should be enabled when the fisherman then in some way winds in the slack that has been formed. Principally, the line reel should be locked in relation to the house in one moment and be disengaged for winding-±n in a second moment.

Objects of the Invention A primary object of the invention is to present a ratchet mechanism that alternates between rotary locking and disengagement of a second body in relation to a first body, e.g., in a fishing reel, in an anchor windlass, in a rope winch, in a hoist or the like. Another object of the invention is to present a fishing reel comprising a ratchet mechanism that alternates between rotary locking and disengagement of a line reel in relation to a house, preferably in an electrically driven fishing reel, which also may comprise a slip brake. The disengagement entails that the operative parts of the ratchet mechanism are entirely spaced-apart from each other, and maximum utilization of applied work may be effected, either it is manual or mechanical.

Brief Description of the Features of the Invention The object of the invention is attained by means of the initially defined ratchet mechanism, which is characterized in that at least one of the magnetic material on the arm and the magnetic material of the second body comprises a magnet. Preferably the magnetic material on the arm is locally placed on a part of the arm, most preferably well distanced from the fixing point of the arm, and the magnetic material on the arm is a magnet. It should be mentioned that the magnetic material on the second body may be continuous or in the shape of discrete points, and that it may comprise one or more magnets . Preferably, the magnet±c material on the arm is influenced by the magnetic material in the second body, in such a way that when said second, body rotates in a first direction, the magnetic material on the arm is moved in the same direction as the motion of turning of the second body, which entails that the engagement projection of the arm engages with the gear rim and that the second body thereby becomes locked in relation to the first body. Preferably, the magnet±c material on the arm is influenced by the magnetic material in the second body, in such a way that when said second body rotates in a second direction, the magnetic material on the arm is moved in the same direction as the motion of turning of the second body, which entails that the engagement projection of the arm is disengaged from the gear rim and that the second body thereby becomes disengaged in relation to the first body. The object of the invention is attained also by means of the initially defined fishing reel, which is characterized in that at least one of the magnetic material on the arm and the magnetic material of the second body comprises a magnet. It should also be mentioned that the ratchet mechanism has two operative parts, and with operative parts the arm and the gear rim are Intended, and that the fixing point of the arm is radially displaced in relation to the axis of rotation of the second body. Additional advantages and features of the invention are seen in the dependent claims, 2-12 and 14, as well as in the following, detailed description of preferred embodiments .

Brief Description of the Drawings Hereinafter, the invention will be described, with an exemplifying purpose, reference being made to the accompanying drawings, in which: Fig. 1 is a side view of a fishing-rod, which comprises a fishing reel according to the invention, Fig. 2 is an enlarged, partial cross-section view of a fishing reel, which comprises a ratchet mechanism according to the invention, Fig. 3 is an exploded view of a fishing reel according to figure 2, taken obliquely from behind, Fig. 4 is an exploded view of a fishing reel according to figure 2, taken obliquely from the front,

Fig. 5 is an enlarged view, taken obliquely from the front, of a fishing reel according to figure 2, with the ratchet mechanism in a mounted state and the line reel in an unmounted state, Fig. 6 is a partial front view of a fishing reel according to figure 2, with the ratchet mechanism in a locked state, Fig. 7 is a partial front view of a fishing reel according to figure 2, with the ratchet mechanism in a disengaged state,

Fig. 8 is an exploded view of an alternative embodiment of a fishing reel, taken obliquely from behind, Fig. 9 is an exploded view of a fishing reel according to figure 8, taken obliquely from the front,

Fig. 10 is an enlarged view, taken obliquely from the front, of a fishing reel according to figures 8 and 9, with the ratchet mechanism in a mounted state and the line reel in an unmounted state,

Fig. 11 is a partial front view of a fishing reel according to figure 10, with the ratchet mechanism in a locked state, and Fig. 12 is a partial front view of a fishing reel according to figure 10, with the ratchet mechanism in a disengaged state.

Detailed Description of Preferred Embodiments In figure 1, a fishing-rod is shown, generally designated 1, which comprises a fishing reel 2 according to the invention, an electrically driven one, a handle 3, which includes a guide 4 for a line 5 and an electric switch 6, as a consequence of the electric drive. The line 5 runs from a line reel 7, around the line guide 4 up to a loop 8 furthest forward on the fishing-rod 1, where a trolling spoon (not shown) may be arranged. In the handle 3, a power supply (not shown) is accommodated, which, e.g., consists of a requisite number of batteries, for power sup- ply to a source of power (not shown) that is accommodated in the fishing reel 2. Furthermore, figures 2 to 7 show a preferred embodiment of a smaller variant of a fishing reel 2 according to the invention and figures 8 to 12 correspondingly show an alternatively preferred embodiment of a larger variant of a fishing reel 2 according to the invention. Now, we refer to figures 2, 3 and 4, which show a fishing reel 2, which comprises a fixed part that consists of a house 9 and a body 10 protruding rearward from the same, which body accommodates the above mentioned source of power. From the surface 11 of the house 9 , a drive shaft 12 projects, in the opposite direction in relation to the rear body 10, which is fixedly connected to a source of power such as a motor or a crank. The fishing reel 2 also comprises a ratchet mechanism according to the invention, generally designated 13, which generally is arranged near the drive shaft 12. In order to form a fishing reel 2 working for fishing, also the line reel 7 is applied on the drive shaft 12 and retained in the axial position thereof according to figure 2, by means of a spring 14 and an adjusting screw 15. The ratchet mechanism 13 comprises two operative parts, a gear rim 16 as well as an arm 17, which are arranged on each one of two bodies that should be disengaged and locked in relation to each other. In this embodiment, the arm 17 is turnably arranged, around a fixing point 18, directly on the house 9 and on the surface 11 that the drive shaft 12 projects from. The arm 17 comprises at least one magnet 19 and at least one projection 20 for engagement with the gear rim 16. In the embodiment shown, the arm 17 comprises two parts extending from the fixing point 18, each of which comprises a magnet 19 in order to get a more distinct guiding of the ratchet mechanism 13. The gear rim 16 is fixedly connected to a second body 21, which co-operates with the line reel 7. The gear rim 16 is arranged on the back side of the second body, the side that faces the house 9, and around the gear rim 16, a magnetic material 22 is arranged, preferably a metal, which has a small axial extension in comparison with the axial extension of the gear rim 16. In the embodiment shown, the second body 21 is formed as a plate, having a hole 23 in order to enable mounting of the second body 21 on the drive shaft 12. The drive shaft 12 comprises a part 24, which is fixedly arranged on the drive shaft 12 and which is situated near the house 9. The part 24 acts as a spacer element and it has a larger extension in the radial direction and a com- paratively short extension in the axial direction in relation to the drive shaft 12. Near and parallel to the drive shaft 12, a pin 25 is arranged on the spacer 24. When the drive shaft 12 is turned around, the pin 25 co-operates with a recess 26 arranged in the second body 21, more precisely at the hole 23, in order to unambiguously bring the second body 21 to rotate together with the drive shaft 12. The gear rim 16 has a through hole 27, which has a larger extension in the radial direction than the spacer 24. When the second body 21 is brought on the drive shaft 12, the second body 21 is in contact with the spacer 24 and the gear rim 16 is situated around and radially distanced from the spacer 24 and axially distanced from the surface 11 of the house 9 in the gap that has been formed between the second body 21 and said surface 11. The turnability of the arm 17 around the fixing point 18 is limited in one direction by the gear rim 16 and in the opposite direction by a pin 28, which projects from the surface 11. The function of the pin 28 may also be attained by fastening a pin on the side of the arm 17 facing the surface 11, which pin co-operates with a groove in the surface 11. With reference also to figure 5, a resilient nail 29 is arranged on the outer periphery of the second body

21, the purpose of the nail 29 being to bring the line reel 7 to rotate together with the drive shaft 12 by engaging one of a plurality of equidistantly located holes 30 in the line reel 7. The holes 30 are located near the periphery of' the line reel 7 and are preferably four. In the periphery thereof, the line reel 7 has also a border 31, which extends axially rearward and which protects the ratchet mechanism 13 (see figure 2), in a mounted state. The line reel 7 has a chamfer 32 for receipt and winding of the line 5. A depression 33 in the front end of the line reel 7 is arranged to accommodate the spring 14, which is applied to the drive shaft 12 and which by means of the adjusting screw 15 forces the line reel 7 in the direction of the second body 21, in such a way that a surface 34 of the line reel 7 abuts against the opposite surface of the second body 21 with a varying pressure, as a consequence of how tight the adjusting screw 15 is tightened. Hence, the adjusting screw 15 decides how large a tensile force in the line 5 that is needed in order to get the fishing reel 2 to slip. That is to say, in order to get the surface 34 and the opposite surface on the second body 21 to slide against each other at the same time as the nail 29 jumps over to the next hole 30 of the line reel 7. Upon winding in the line 5, the electric switch 6, which is operatively connected to the power supply (accommodated in the handle 3) and the source of power (accommodated in the rear part 10) mentioned above, has to be activated in order to bring the ' drive shaft 12 to be turned. The drive is terminated by the electric switch 6 being deactivated, which entails that the operative connection between the power supply and the source of power is broken. In an alternative embodiment, not shown, the power supply may be accommodated in a belt or the like which is carried by the fisherman, in order to decrease the weight of the fishing-rod 1, and the electric switch 6 may be fastened to the handle 3 by means of Velcro^® or the like. We now refer to figures 6 and 7. Figure 6 shows ' the position when the engagement projection 20 of the arm 17 is in engagement with the gear rim 16. When the second body 21 has been turned an angle γ clockwise according to figure 6, as a consequence of the line 5 having been drawn in a direction A, the magnetic material 22 (see figure 3) has influenced the magnet/magnets 19 to be moved in the same direction as the motion of turning of the second body 21. This entails that the engagement projection 20 of the arm 17 engages with the gear rim 16 and that the second body 21 thereby is locked in relation to the house 9. Cor- respondingly, figure 7 shows the position when the engagement projection 20 of the arm 17 is disengaged from the gear rim 16. When the drive shaft 12 is turned the angle β counter-clockwise according to figure 7, by humanly or electrically applied work, also the second body 21 is turned, in order to bring the line reel 7 to wind up the line 5. This influences the magnet/magnets 19 to be moved in the same direction as the motion of turning of the second body 21. This also entails that the engagement projec- tion 20 of the arm 17 disengages with the gear rim 16 and that the second body 21 thereby is disengaged in relation to the house 9, and a maximum utilization of applied work can take place, either it is human or electric. Figures 8 to 12 show, as has been mentioned above, a preferred alternative embodiment of a larger variant of a • fishing reel 2 according to the invention, comprising a ratchet mechanism 13 according to the invention. We now refer to figures 8 and 9. In this embodi- ment, the arm 17 is turnably arranged around a fixing point 18 on a first body 35, which is turnatole in relation to the house 9. Correspondingly as in the first embodiment described above, the turnability of the arm 17 is limited in one direction by the gear rim 16 and in the opposite direction by a pin 28. Like the arm, the pin 28 is arranged on the first body 35 in this embodiment. The rear part 10 has an external thread 36 near the house 9, said external thread 36 co-operating with an internal thread 37 on a knob 38, which is used in order to set the tightness of a slip brake that is described below. The surface 39 of the adjusting knob 38 acts against a number of pegs 40, which are insertable into and axially movable in relation to corresponding through holes 41 in the house 9 and which have a length that exceeds the depth of the holes 41. Furthermore, the pegs 40 are arranged on the back side of a plate 42. The slip brake comprises two elements, the plate 42 and a washer 43, and the first body 35, on which an operative part of the ratchet mechanism 13 is arranged, preferably the arm 17, with the first body being arranged between the plate 42 and the washer 43. The washer 43 comprises a centred externally threaded pipe socket 44 that projects perpendicularly from the washer 43 in the backward direction. The pipe socket 44 goes through a centred hole 45 in the first body 35 and through a centred hole 46 in the plate 42 and co-operates with a corresponding internal thread ±n a sleeve 47 fixedly connected with the house 9. The washer 43 locks the first body 35 in the axial direction, i.e., acts as an abutment in the slip brake and clamps the first body 35 between itself and the plate 42. In order to set the tightness of the slip brake, the adjusting knob 38 is screwed in one or the other direction, and in doing so, the pegs 40 are actuated in the axial direction and thereby the plate 42 is pressed against the first body 35, more or less hard. In order to increase the friction between the first body 35 and the plate 42 or in order to spare the first body 35 and the plate 42 against wear, a friction/wearing material (not shown) may be placed between them. The friction/wearing material may be fixedly connected to the first body 35 and/or the plate 42, or consist of a free rotatable body between the first body 35 and the plate 42. The plate 42, the first body 35 and also the washer 43 have central through holes 46, 45 and 48, respectively. In the preferred embodiment, the drive shaft 12 extends all through the slip brake device, i.e., through the holes 46, 45 and 48. The drive shaft 12 is shielded from the plate 42, the first body 35 and the washer 43 by means of the sleeve 47, which is penetrated centrally by the drive shaft 12 and which is fixedly connected to the house 9. In front of said sleeve 47, in the axial direction, a second body 21 is fixedly arranged on the drive shaft 12, by means of a through cotter 49 or the like. In the rear edge of the second body 21 , the gear rim 16 is fixedly arranged, which co-operates with the arm 17 in a similar way as has been described above in the first embodiment. Farthest forward on the second body 21, a means 50 is arranged, here in the shape of axially protruding nails, which co-operate with the corresponding means 51, here in the shape of holes/recesses, on the line reel 7, in order to bring the line reel 7 to rotate together with the drive shaft 12. In this embodiment, the gear rim 16 comprises the magnetic material of the second body 21. It should be realized that the gear rim 16 here, as well as in all embodiment, may be, and is, a part of the second body 21. With reference also to fig-ure 10. The line reel 7 is locked against the second body 2 and on the drive shaft 12 by means of a locking screw 52. In a mounted state, the ratchet mechanism 13 and the slip brake are protected from external action by a border 53 arranged on the house 9, which border extends forward in the axial direction from the periphery of the house 9. Now, we refer to figures 11 and 12. Figure 11 shows the position when the engagement projection 20 of the arm 17 is in engagement with the gear rim 16. When the second body 21 has been turned clockwise according to figure 11, as a consequence of the line 5 having been drawn in a direction A and turned the line reel 7 clockwise, the magnetic material in the gear rim 16 has influenced the magnet 19 to be moved in the same direction as the motion of turning of the second body 21. This entails that the engagement projection 20 of the arm 17 engages with the gear rim 16 and that the second body 21 thereby is locked in relation to the first body 35. Correspondingly, figure 12 shows the position when the engagement projection 20 of the arm 17 is disengaged from the gear rim 16. When the drive shaft 12 is turned counter-clockwise according to figure 12, by humanly or electrically applied work, also the second body 21 is turned, in order to bring the line reel 7 to wind up the line 5. This influences the magnet 19 to be moved in the same direction as the motion of turning of the second body 21. This also entails that the engagement projection 20 of the arm 17 disengages with the gear rim 16 and that the second body 21 thereby is disengaged in relation to the first body 35, and maximum utilization of applied work can take place, either it is human or electric. Below, preferred embodiments of different details comprised in the invention will 3oe described, details which are independent of embodiments. Jn a preferred embodiment of the ratchet mechanism 13, the fixing point 18 of the arm 17, the centre point of the gear rim 16 and the magnet 19 should be arranged in a substantially straight line with each other, when the engagement projection 20 is halfway between engagement and disengaged state, and preferably the fixing point 18 of the arm 17 and the magnet 19 should be arranged on each side of the centre point of the gear rim 16, along the described line. Simultaneously, the engagement projection 20 should act substantially perpendicularly to said line and perpendicularly to the periphery of the gear rim 16. This entails that the engagement projection 20 should be arranged on the arm 17 near half the length thereof and the magnet 19 on the end of the arm 17 that is opposite the fixing point 18 of the arm 17. The described configuration gives a distinct and precise guid- ing of the arm 17 and the engagement projection 20. The arm 17 may also, as has been shown in the first embodiment, be composed of two parts having a common fixing point, the magnet 19 is in that case arranged on one of the parts and the engagement projection 20 on the other one. However, the magnet 19 and the engagement projection 20 should preferably be arranged in those positions in relation to the fixing point 18 of the arm 17 and the centre point of the gear rim 16 that have been mentioned above. The gear rim 16 has in the preferred embodiments teeth arranged along the outer periphery thereof, and the engagement projection 20 of the arm 17 acts against said outer periphery. The gear rim 16 may, however, instead have teeth arranged along the inner periphery thereof, the engagement projection 20 of the arm 17 then act against the same inner periphery. In any case, the teeth of the gear rim 16 and the engagement projection 20 should preferably have such configurations that they assist to get the engagement projection 20 to engage and disengage with the gear rim 16. Preferably, the teeth and the engagement pro- jection 20 are wave-shaped and counter-posed, i.e., aggressively angled in opposite directions, so that they engage each other, when the ratchet mechanism 13 is locked. The magnet 19 on the arm 17 should preferably be a permanent magnet but it may also, upon use of an electri- cally driven fishing reel, utilize the power supply that drives the source of power and accordingly be an electromagnet or the like. The two bodies that the ratchet mechanism 13 should lock in direction of rotation may either have a common axis of rotation or different axes of rotation, the bodies may overlap each other or lie separated from each other and the bodies may have the same size or have different sizes. However, in the preferred embodiments, with or without electric driving of the fishing reel, the axes of rotation should coincide, but the bodies may in other aspects differ in size and geometry. Finally, it should be appreciated that the present invention also may be used in other applications than fishing reels 2 having slip brake . For instance, fishing reels 2 with the ratchet mechanism 13 being direct acting may be mentioned, i.e., the fishing reel 2 lacks slip brake. Other applications that are suitable for use of the present invention are, e.g., hoists of different types, various anchor windlasses or rope winches, said applications may be arranged with direct acting ratchet mechanisms or with ratchet mechanisms that are arranged with appropriate slip clutches.

Feasible Modifications of the Invention The invention is not only limited to the embodiments described above and shown in the drawings, but solely by the definitions that are given in the claims, in support of the appended drawings and the detailed description. It should be realized that the operative parts of the ratchet mechanism, the gear rim and the arm, mutually may change place on the first and the second body, without affecting the function of the invention or the scope of the inventive idea. It should also be realized that with magnetic material is intended an element manufactured from a material that is influenced or acts by a magnetic force, i.e., consists of iron or the like, or consists of a permanent mag- net, electromagnet or the like.

Claims

1. Ratchet mechanism (13) for rotary locking of a second body (21) in relation to a first body (9, 35) , the ratchet mechanism (13) comprising a gear rim (16) and at least one arm (17) , which is turnably arranged around a fixing point (18) on the said first body (9, 35) and which comprises at least one magnetic material (19) and at least one projection (20) for engagement with the gear rim (16), which is fixedly connected to, or forms part of, the second body (21) and that said second body (21) comprises a magnetic material (22) , and characterized in that at least one of the magnetic material (19) on the arm (17) and the magnetic material (22) of the second body (21) comprises a magnet.

2 . Ratchet mechanism ( 13 ) according to claim 1 , characterized in that the magnetic material ( 19 ) on the arm ( 17 ) is a magnet .

3. Ratchet mechanism (13) according to claim 1 or 2, characterized in that the magnetic material (19) on the arm (17) and the engagement projection (20) are distanced from the fixing point (18) of the arm.

4. Ratchet mechanism (13) according to any one of claims 1-3, characterized in that the magnetic material (19) on the arm (17) and the magnetic material (22) of the second body (21) are arranged at a distance in relation to each other that allows mutual influence between the same.

5. Ratchet mechanism (13) according to any one of claims 1-4, characterized in that the magnetic material (19) on the arm (17) consists of a permanent magnet.

6. Ratchet mechanism (13) according to any one of claims 1-5, characterized in that the gear rim (16) has teeth arranged along the outer periphery thereof.

7. Ratchet mechanism (13) according to any one of claims 1-6, characterized in that the magnetic material (19) on the arm (17) is influenced by the magnetic material (22) in the second body (21) , in such a way that when said second body (21) rotates in a first direction, the magnetic material (19) on the arm (17) is moved in the same direction as the motion of turning of the second body (21) , which entails that the engagement projection (20) of the arm (17) engages with the gear rim (16) and that the second body (21) thereby becomes locked in relation to the first body (9, 35) .

8. Ratchet mechanism (13) according to any one of claims 1-7, characterized in that the magnetic material (19) on the arm (17) is influenced by the magnetic material (22) in the second body (21) , in such a way that when said second body (21) rotates in a second direction, the magnetic material (19) on the arm is moved in the same direction as the motion of turning of the second body (21) , which entails that the engagement projection (20) of the arm (17) r is disengaged from the gear rim (16) and that the second body (21) thereby becomes disengaged in relation to the first body (9, 35) .

9. Ratchet mechanism (13) according to any one of claims 1-8, characterized in that the engagement projection (20) and the gear rim (16) are arranged in such a way that when the second body (21) and thereby the gear rim (16) rotate in a second direction, the engagement projection (20) is forced out of the engagement with the gear rim (16) , which entails that the engagement projection (20) of the arm (17) is disengaged from the gear rim (16) and that the second body (21) thereby becomes disengaged in relation to the first body (9, 35) .

10. Ratchet mechanism (13) according to any one of the preceding claims, characterized in that the arm (17) is turnably arranged on the first body (9, 35) around a geometric axis, which is substantially perpendicular to the direction of rotation of the second body (21) and substantially parallel to the axis of rotation of the second body (21) .

11. Ratchet mechanism (13) according to any one of the preceding claims, characterized in that the fixing point (18) of the arm (17), the centre point of the gear rim (16) and the magnetic material (19) on the arm (17) are arranged in a substantially straight line with each other, when the engagement projection (20) is halfway between engagement and disengagement.

12. Ratchet mechanism (13) according to any one of the preceding claims, characterized in that the fixing point (18) of the arm (17) and the magnetic material (19) on the arm (17) are arranged on each side of the centre point of the gear rim (16) , along a substantially straight line, when the engagement projection (20) is halfway between engagement and disengagement.

13. Fishing reel (2) comprising a ratchet mechanism (13) for rotary locking of a second body (21) in relation to a first body (9, 35) , the ratchet mechanism (13) comprising a gear rim (16) and at least one arm (17), which is turnably arranged on the said first body (9, 35) and which comprises at least one magnetic material (19) and at least one projection (20) for engagement with the gear rim (16), which is fixedly connected to, or forms part of, the second body (21) and that said second body (21) comprises a magnetic material (22), and characterized in that at least one of the magnetic material (19) on the arm (17) and the magnetic material (22) of the second body (21) comprises a magnet.

14. Fishing reel (2) according to claim 13, characterized in that the fishing reel (2) comprises a slip brake that co-operates with the ratchet mechanism (13), and that the slip brake comprises a first element (42) and a second element (43), which in the axial direction are displaceable in relation to each other, and between which a rotatable body (35), connected to an operative part of the ratchet mechanism (13), is arranged.