JPS6334528Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a double-shaft reel, and more particularly, to a double-shaft reel in which a spool shaft having a spool in the reel body is freely rotatably supported via a pair of bearings.

Generally, a double-shaft reel has a clutch, and when the clutch is engaged, the rotation of the handle shaft is transmitted to the spool shaft to wind the fishing line onto the spool, and when the clutch is disengaged, the spool shaft can freely rotate. The casting operation is similar to casting a fishing line.

By the way, when fishing, the fishing line wound on the spool is pulled out by the weight of the device attached to the tip of the fishing line, but the free rotation of the spool becomes faster than the speed at which the fishing line is pulled out, resulting in what is called backlash. This causes the fishing line to become tangled or get caught between the spool and the reel body, and for this reason, a brake is generally provided.

Further, as the brake, a centrifugal brake using a brake shoe is generally used. According to this centrifugal brake, braking is performed by bringing the brake shoe into sliding contact with the brake drum, so the brake is controlled by the friction of the brake shoe. There was a problem that the power changed, and there was also a problem that the braking force could not be adjusted externally.

Therefore, in order to solve the above problems, a magnet and a metal conductor are used, one of which rotates together with the spool, and the other is fixed to the reel body, and the magnetic flux is rotated by the rotation of one. A eddy current is generated, and according to Fleming's left-hand rule, a force is applied to the rotating member in the opposite direction to the rotating direction of the rotating member, so as to brake the spool, and the stationary member is moved against the reel body. It has been proposed that the spool shaft is movable in the axial direction so that the braking force can be adjusted by external operation.

According to this method, since there is no contact part, it is possible to solve the problem of the braking force changing due to wear of the braking member, and the braking force can be easily adjusted by external operation. One side is supported by the reel body and is movable in the axial direction of the spool shaft, and the distance between the metal conductor and the magnet is variably adjusted.
There were problems in that the braking force could not be adjusted with high precision, and the structure for moving it became complicated, resulting in high costs.

The present invention was devised in view of the above-mentioned problems, and its purpose is to provide a double-shaft reel with a simple structure and a brake that allows precise adjustment of braking force.

That is, in the present invention, at least one ring having a plurality of magnets arranged around the spool shaft is arranged and fixed to one end of the spool shaft of the reel body, and at least one ring is fixed to one end of the spool shaft. , an electrical conductor facing the magnet of the ring is provided, and a shield made of a magnetic material is interposed between the conductor and the ring, and the shield is attached to the reel body and the spool. The reel body is supported to be freely movable in the axial direction of the shaft, and the reel body is provided with an operating tool for the shield, and the braking force can be adjusted to a desired adjustment width by operating the shield. This made it possible to perform this process arbitrarily and with high precision.

Next, an embodiment of the reel of the present invention will be described based on the drawings.

In the figure, 1 and 2 are a pair of first and second side frames facing each other with a predetermined interval,
The first side frame 1 consists of a side plate 12 having a bearing housing 11 in the center, a splint 13 attached to the outside of the side plate 12, and a bowl-shaped cover 14 attached to the outside of the splint 13, The second side frame 2 is composed of a side plate 22 having a bearing housing 21 in the center, and a bowl-shaped cover 23 attached to the outside of the side plate 22. A brake 5, which will be described later, is installed inside the bearing housing 21. That's what I do.

A spool shaft 4 having a spool 3 is rotatably supported between the first and second side frames 1 and 2 thus formed via bearings 10, and the side end of the first frame 1 is directed outward. The pinion gear 6 is extended and protruded into the first side frame 1, and the pinion gear 6 is rotatably and slidably supported on this protrusion, and a clutch 7 is provided between the pinion gear 6 and the spool shaft 4, and a clutch operating mechanism is provided. The clutch lever 81 is used to engage and disengage the clutch 7.

A handle shaft 30 is rotatably supported between the splint 13 of the first side frame 1 and the cover 14 via a support shaft 9, and one end of the handle shaft 30 is extended outwardly from the cover 14. A handle 31 is fixed to this protrusion, and a master gear 32, a friction plate 33, and a return plate 34 having a plurality of clutch pins 34a are inserted and supported at the other end.

The friction plate 33 and the return plate 34 are non-rotatably inserted into the handle shaft 30 so as to rotate together with the handle shaft 30, and the master gear 32 is loosely inserted into the handle shaft 30 so as to transmit the rotational force from the handle shaft 30 to the master gear 32 via the friction plate 33.

The pressing force of the friction plate 33 against the master gear 32 can be adjusted by an adjustment body 35 screwed onto the end of the handle shaft 30.

Further, the clutch 7 is constructed by providing a flat surface at the intermediate portion of the spool shaft 4 and providing the pinion gear 6 with a cylindrical portion having a non-circular inner surface that engages with the flat surface. By separating the cylindrical portion of the pinion gear 6 from the flat surface forming portion of the spool shaft 4 by operating the operating mechanism 8, the spool shaft 4 and the spool 3 fixed to the spool shaft are made freely rotatable.

The clutch operating mechanism 8 is a fork-shaped clutch having a clutch yoke 82 that holds the pinion gear 6 and always presses it in the direction in which the clutch 7 is engaged, and a pressing portion 81a that presses the clutch yoke 82. It consists of a lever 81 and the return plate 34, and the clutch lever 81 is reciprocated to the splice plate 13 of the first side frame 1 in a direction perpendicular to the spool shaft 4 through a pin 83 and a long hole 84. The pinion gear 6 is freely supported and biased in the backward movement direction by a return spring (not shown), and the clutch lever 81 is pressed to move the clutch yoke 82 in the axial direction. the clutch pin 34a provided on the return plate 34 by rotating the handle 31.
is pressed against a contact body (not shown) provided at the tip of the clutch lever 81, and the clutch lever 81 is returned to its original position by the force of the return spring, thereby moving the pinion gear 6 to the clutch yoke 82. The clutch 7 is moved in the direction in which it is engaged by the pressing force. Note that the clutch lever 81 is connected to the splice plate 1.
The pin 83 is fixed to the splint plate 13 and is pivotable around the pin 83, and an engaging portion is provided at the tip of the pin 83, and this engaging portion is engaged with a stepped portion of a notch provided in the splint plate 13. This allows the clutch lever 81 to be held at the forward movement end position.

The present invention has a reel configured as described above,
The brake 5 during free rotation of the spool 3 is formed as follows.

That is, as shown in FIG. 1, on the spool side of the bearing housing 21, as shown in FIG. are arranged concentrically with the spool shaft 4 and fixed to the inner circumferential surface of the bearing housing 21 and the outer circumferential surface of an inner cylinder 24 provided at the center of the bearing housing 21, and the spool 3 The flange 3a facing the bearing housing 21 is provided with an electrical conductor 54 that protrudes between the rings 51 and 53 and faces the magnets 50 and 52, as shown in FIG.
A cylindrical shielding part 55, a ring-shaped support part 56 having teeth 56a on the outer peripheral surface and screws 56b on the inner peripheral surface.
A shielding body 57 made of a magnetic material having The side plate 22 and the bearing housing 23
An operating tool 60 having a gear 58 that meshes with the teeth 56a of the support portion 56 and a knob 59 that rotates the gear 58 is supported between the cover 23 and the operating tool 60. By exposing it to the outside, the shielding body 57 can be operated from the outside.

The shield 57 is connected to the magnets 50 and 52.
The magnetic flux passing through the magnetic conductor 54 is released to the shielding part 55 to change the magnetic field applied to the electrical conductor 54, and the magnet 5
The number of magnetic fluxes passing between 0 and 52, that is, the magnet 5
0 and 52, and when the shielding part 55 is in a position facing the magnets 50 and 52, the magnetic flux between the magnets 50 and 52 is controlled. The path is the shielding part 5
5, the magnetic flux from the magnet 52 is
The magnetic flux from the magnet 50 escapes to the shielding part 55 through the conductor 54 and escapes to the shielding part 55 without passing through the conductor 54. Therefore, the number of magnetic fluxes passing through the conductor 54 is becomes the minimum,
Further, the shielding portion 55 is connected to the magnets 50 and 52.
When the magnets 50 and 52 are at the maximum displacement position with respect to the opposing position, the magnetic path between the magnets 50 and 52 is no longer blocked by the shielding part 55, so that the magnetic flux between the magnets 50 and 52 is not transmitted to the shielding part 55. The amount of escape is minimized and the number of magnetic fluxes passing through the conductor 54 is maximized.

In the above configuration, the magnets 50, 5
2, the magnet 50 of the outer ring 51 is the north pole, and the magnet 52 of the inner ring 53 is the south pole. Further, the operating tool 60
A part of the gear 58 projects into the bearing housing 21 through the window hole 21 a provided in the bearing housing 21 , and a part of the gear 58 projects into the bearing housing 21 through the window hole 21 a provided in the bearing housing 21 .
The teeth 56a mesh with each other.

Moreover, between the gear 58 and the knob 59,
An operating shaft 61 is provided, and the shaft end of the operating shaft 61 is supported on the vertical wall of the bearing housing 21 .

Therefore, when the clutch lever 81 is operated to disengage the clutch 7 and the spool 3 is rotated freely for casting, the conductor 54 provided on the spool 3 is connected to the magnets 50, 52 together with the spool 3. The conductor 54 rotates within a magnetic field, and as the conductor 54 rotates, the direction of the magnetic flux passing through the conductor 54 changes in the direction of rotation. This change in magnetic flux generates an eddy current in the conductor 54, and according to Fleming's left hand rule, the conductor 54
A magnetic force is generated in the direction opposite to the direction of rotation of the spool 3 and brakes the spool 3.

This braking force can be controlled by adjusting the shielding body 57 using the operating tool 60.

That is, when the operation tool 60 is rotated, the gear 58 is rotated and the shield 57 is rotated, and with this rotation, the shield 57 is rotated.
By screwing forward or backward in the axial direction of the spool shaft 4, the position of the shielding part 55 with respect to the magnets 50, 52 changes, and the number of magnetic fluxes passing through the conductor 54 can be changed. The braking force acting on the spool 3 can be adjusted. That is, the shielding part 55 is
0 and 52, the magnetic path between the magnets 50 and 52 is blocked by the shielding portion 55, and the amount of magnetic flux between the magnets 50 and 52 escaping to the shielding portion 55 is maximized. Since the number of magnetic fluxes passing through the conductor 54 is minimized, the braking force acting on the spool 3 can be minimized.
By displacing the position relative to 52 in the direction of separation, the magnetic path between the magnets 50 and 52 is no longer blocked, and the amount of magnetic flux escaping to the shielding portion 55 between the magnets 50 and 52 is minimized. Since the number of magnetic fluxes passing through the conductor 54 is maximized, the braking force acting on the spool 3 can be maximized.

Although the magnets 50 and 52 provided in each of the rings 51 and 53 are annular, a plurality of magnets may be provided at predetermined intervals. In this case, the magnets provided on each of the rings 51 and 53 are provided at opposing positions, with the magnet 50 provided on the outer ring 51 serving as the N pole, and the magnet 52 provided on the inner ring 53 serving as the N pole.
is set as the south pole, but each ring 51, 53 may be provided with a north pole and a south pole alternately. Further, the magnets 50 and 52 are connected to the ring 5.
The rings 51 and 53 may be formed separately from the rings 51 and 53 and fixed by a fixing means such as adhesive, or the rings 51 and 53 may be made of synthetic resin and embedded into the same during molding. may be formed.

Further, when a plurality of the magnets 50, 52 are provided, the shape can be formed arbitrarily, but if the magnets are formed into a rectangular shape, the braking force can be adjusted linearly, as in the case where the magnets are formed into an annular shape.

Furthermore, in the embodiment described above, the ring 5
Although one pair of rings 51 and 53 is provided, the same operation can be carried out with only one ring 51 or 53, or one ring may be made of a magnetic material and only the other ring may be provided with the magnet.

In these cases, the shielding portion 55 of the shielding body 57
is interposed between the conductor 54 and the ring 51 or 53, and the magnet 50 or 52 provided on the ring 51 or 53 has north and south poles arranged alternately.

Furthermore, although the operating tool 60 is configured to indirectly operate the shield 57 via the gear 58, a knob is directly provided on the support portion 56 of the shield 57, and this knob is connected to the cover. It may be formed so that it is exposed on the outside of 23.

Further, although the conductor 54 is provided integrally with the spool 3, it is provided separately from the spool 3 and connected to the spool shaft 4.
Alternatively, it may be fixed to the spool 3.

As described above, in the present invention, a ring with a magnet is fixed, and an electrical conductor facing the magnet is provided on the spool or the spool shaft. Therefore, the spool can be braked by using the magnetic force of the magnet, and the spool can be shielded. Since the braking force is adjusted by moving the shield, the braking force can be adjusted over a wide range with a simple structure, and linear adjustment can be easily performed without making the magnet shape complicated. In addition, since the braking force is adjusted by the shape of the through hole provided in the shield, the accuracy of the adjustment can be improved and backlash can be reliably prevented.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional plan view of the reel of the present invention, FIG. 2 is a cross-sectional side view taken along the line of FIG. 1, and FIG. 3 is a cross-sectional view of the main parts. 1, 2...Reel body, 3...Spool, 4...
...Spool shaft, 5...Brake, 50, 52...
Magnet, 51, 53...ring, 54...electric conductor, 57...shielding body, 60...operating tool.

Claims (1)

[Scope of utility model registration request] In a double-shaft reel in which a spool shaft having a spool is freely rotatably supported in a reel body, at least one ring having a plurality of magnets circumferentially arranged on one end side of the spool shaft of the reel body is arranged concentrically with the spool shaft. In addition to arranging and fixing the spool, an electric conductor is provided on one of the spool and the spool shaft to face the magnet of the ring, and a shield made of a magnetic material is interposed between the conductor and the ring. A double-shaft reel characterized in that the shield is supported on the reel body so as to be movable in the axial direction of the spool shaft, and the reel body is provided with an operating tool for the shield. .