JPH041811Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double-bearing reel, and more particularly to a double-bearing 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 bearing 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.
By disengaging the clutch, the spool shaft can rotate freely, and by casting the clutch, the spool shaft is made to rotate like casting a fishing line.

By the way, during casting, the fishing line wound around 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 pulling out speed of the fishing line, resulting in what is called backlash. This causes problems such as the fishing line getting tangled or getting caught between the spool and the reel body.

Conventionally, in order to solve the above problems, a cast control that contacts one end surface of the spool shaft to provide resistance to the rotation of the spool shaft, and a magnetic brake equipped with an electric conductor and a magnet have been used.
The cast control is screwed onto the reel body, and the rotational resistance applied to the spool shaft is adjusted by rotating the cast control, while one of the electric conductor and the magnet of the magnetic brake is rotated together with the spool shaft. The conductor and the magnet are placed on a rotating member such as a spool, and the other is placed on the reel body, and these conductors and magnets are opposed to each other in the axial direction of the spool shaft, and the rotation of one rotates the magnetic flux and generates an eddy current. According to the law, a device is known in which a force is applied to a rotating member in a direction opposite to the rotating direction of the rotating member to provide resistance to the rotation of the spool.

However, according to this conventional reel, when the cast control is loosened so as not to apply rotational resistance to the spool shaft, a gap is created between one end surface of the spool shaft and the cast control.
Not only does the spool shaft move in the axial direction with respect to the reel body, causing rattling, but the movement of the spool shaft also changes the distance between the conductor of the magnetic brake and the magnet, and the braking force of the magnetic brake fluctuates. I had a problem.

The present invention was devised in view of the above points, and the purpose is to prevent the spool shaft from wobbling in the axial direction even when the cast control is loosened to avoid applying rotational resistance to the spool shaft. , and to prevent fluctuations in the braking force of the magnetic brake.

Therefore, the configuration of the present invention is such that the reel main body supports a spool shaft having a spool so as to be freely rotatable, and the rotating member rotates together with the spool shaft. The conductor and the magnet are arranged to face each other in the axial direction of the spool shaft, and a stopper is provided for receiving movement of the spool shaft in one direction in the axial direction and maintaining a spacing between the conductor and the magnet. and a cast control that contacts the end surface of the other end of the spool shaft in the axial direction to press the spool shaft in the direction of the stopper and provides resistance to rotation of the spool shaft. A stepped portion is provided on the outer periphery of one end of the shaft, and between the stepped portion and the cast control, the spool shaft is biased in the direction of the stopper via a sliding body, and the spool shaft is constantly pressed against the stopper. By interposing an elastic body that prevents the spool shaft from moving in the axial direction when the cast control moves away from the spool shaft by making elastic contact with the spool shaft, it is possible to prevent the spool shaft from wobbling in the axial direction. By using cast control, it is possible to prevent the distance between the conductor and the magnet from changing.

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

In the figure, A is a reel body consisting of a pair of first and second side frames 1 and 2 facing each other at a predetermined interval, and the first side frame 1
consists of a side plate 11, a splint 12 attached to the outside of the side plate 11, a bowl-shaped cover 13 attached to the outside of the splice 12 and having a bearing tube 14 in the center, and a second The side frame 2 consists 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. Inside the bearing housing 21, there is an electrical conductor 51 and an electrical conductor 51 connected to the conductor 51. A magnetic brake 5 having opposing magnets 52 is installed inside.

Then, between the bearing housing 14 and the bearing tube 21 of the first and second side frames 1 and 2 thus formed, the spool shaft 4 having the spool 3 is attached to the ball bearing 9,
The first side frame 1 side end is extended outward to protrude into the first side frame 1, and the pinion gear 6 is rotatably and slidably supported on this protrusion. A clutch 7 is provided between the pinion gear 6 and the spool shaft 4, and the clutch 7 is engaged and disengaged by a clutch lever 81 of a clutch operation mechanism 8.
A metal plate, such as a phosphor bronze plate, is provided at a position facing the end surface of the spool shaft 4 within the metal plate to receive movement of the spool shaft 4 in one direction in the axial direction and to maintain the opposing distance between the conductor 51 and the magnet 52. A stopper 24 is provided to restrict movement of the spool shaft 4 toward the bearing housing 21 side.

A handle shaft 31 is rotatably supported between the splint 12 of the first side frame 1 and the cover 13 via a support shaft 30.
One end projects outward from the cover 13, a handle 32 is fixed to this projecting part, and a master gear 33, a friction plate 34, and a return plate 35 having a plurality of clutch pins 35a are inserted into the other end. At the same time, the outer peripheral surface of the bearing sleeve 14 provided at the center of the cover 13 contacts the other end surface 4a of the spool shaft 4 to press the spool shaft 4 in the direction of the stopper 24. A cast control 20 that provides resistance to the rotation of the spool shaft 4 is attached by screwing, and rotation of the cast control 20 in the spiral direction urges the spool shaft 4 toward the bearing housing 21 side.
By increasing the rotational resistance and rotating in the relaxation direction,
Rotational resistance imparted to the spool shaft 4 can be eliminated.

The friction plate 34 and the return plate 35 are non-rotatably inserted into the handle shaft 31 so as to rotate together with the handle shaft 31, and the master gear 33 is loosely inserted into the handle shaft 31. The rotational force from the handle shaft 31 is transmitted to the master gear 33 via the friction plate 34.

The pressing force of the friction plate 34 against the master gear 33 can be adjusted by an adjustment body 36 screwed onto the end of the handle shaft 31.

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 12 of the first side frame 1 in a direction perpendicular to the spool shaft 4 through a pin 83 and an elongated 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 35a provided on the return plate 35 by rotating the handle 32
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 12 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 12. This allows the clutch lever 81 to be held at the forward movement end position.

Further, the magnetic brake 5 has the conductor 5
1 has a cylindrical body 3a and a pair of flanges 3b, 3c protruding from both ends of the body 3a, and is formed integrally with one side flange 3c of the spool 3 made of aluminum. In addition, a support tube 2 provided at the center of the bearing housing 21
A non-magnetic holding body 53 is supported on the outer peripheral surface of 1a so as to be movable only in the axial direction of the spool shaft 4, and a plurality of magnets 52 are held on one side of the holding body 53 at predetermined intervals in the circumferential direction. Then, the conductor 5
1 and the spool shaft 4 in the axial direction, and a spring 54 is interposed between the holder 53 and the support cylinder 21a to prevent the holder 53 from separating the magnet 52 from the conductor 51. The support portion 21b provided on the outer surface of the bottom wall of the bearing housing 21 has arc-shaped cam surfaces 55a, 55a facing in the circumferential direction and tilting toward one side in the axial direction on one side in the axial direction. A circular operating tool 55 is rotatably supported, and a rotary operating knob 55b of the operating tool 55 is exposed outside the cover 23 so that it can be operated from the outside, and the cam surface 55a, Rolling element 5 that engages with 55a
6 and 56 are held in window holes 21c and 21c provided in the bottom wall of the bearing housing 21, and the holding body 53
The holder 53 is brought into contact with the outer surface of the conductor 51, and by rotation of the operating tool 55, the holder 53 is moved in the axial direction to adjust the spacing between the conductor 51 and the magnet 52.

In the reel constructed as described above, this invention provides a stepped portion 4b on the outer periphery of the part where the spool shaft 4 enters the bearing sleeve 14, and the shaft portion between the stepped portion 4b and one end surface 4a has a small diameter. and the inner race 9a of the ball bearing 9 is attached to the small diameter shaft portion 4c,
A spacer 40 having a protrusion 40a that contacts one end surface of the inner race 9a is supported, and the spacer 4
0 and the cast control 20, the spool shaft 4 is urged in the direction of the stopper 24 via a sliding body 41 having a thrust bearing structure, and the spool shaft 4 is always brought into elastic contact with the stopper 24. , an elastic body 4 such as a coil spring that prevents axial movement of the spool shaft 4 when the cast control 20 is operated to separate from the spool shaft 4;
2 was inserted.

In the above configuration, the elastic body 42 biases the spool shaft 4 in the direction of the stopper 24 even when the cast control 20 is loosened so as not to apply rotational resistance to the spool shaft 4. The spool shaft 4 is always brought into elastic contact with the stopper 24, so that movement of the spool shaft 4 in the axial direction can be prevented.

Furthermore, the sliding body 41 reduces the contact resistance between the elastic body 42 and the cast control 20 to allow the spool shaft 4 to rotate smoothly. An annular ball receiving surface 41a is provided on the inner surface 20a that contacts the one end surface 1a of the spool shaft of 20, and a ball receiving surface 4 that faces the ball receiving surface 41a is provided.
A ball retainer 41c having a diameter of 1b is interposed between the spacer 40 and the inner surface 20a, and the ball receiving surface 41
A large number of rolling elements 41d are interposed between a and 41b. The sliding body 41 may have a thrust bearing structure using the rolling elements 41d or may have a thrust bearing structure without using the rolling elements 41d. The structure is not particularly limited as long as it can reduce the relative rotational resistance between the two.

The ball bearing 9 also includes an inner race 9a that fits on the small diameter shaft portion 4c, an outer race 9b that fits on the inner peripheral surface of the bearing sleeve 14, and a large number of races interposed between these races 9a and 9b. It is formed by the rolling elements 9c. Note that this ball bearing 9 may be supported by, for example, the side plate 11 or the splint plate 12. In this case, one end of the elastic body 42 is brought into direct contact with the step portion 4b, or the spacer 4
0 or through the sliding body 41.

Further, the spacer 40 is formed of a disk portion having a through hole in the center, and an annular protrusion portion projecting to one side from around the through hole of the disk portion.

When the clutch lever 81 is operated to disengage the clutch 7 and the spool 3 is rotated freely for casting, for example, the cast control 20 is rotated in advance to set the spool 3 to a predetermined rotation. Either the rotational resistance by the cast control 20 and the braking force by the magnetic brake 5 prevent backlash, or the cast control 20 is loosened so that no rotational resistance is applied to the spool shaft 4. Either the brake 5 is used alone to prevent backlash, or the conductor 51 of the brake 5 and the magnet 52 are
In the structure in which the facing distance between the cast control 2 and the cast control 2 can be adjusted, the facing distance is increased and the braking action by the brake is eliminated.
This is done so that backup crashes can be prevented using only 0.

At this time, the spool shaft 4 is urged in the direction of the stopper 24 by the elastic body 42 and is always in elastic contact with the stopper 24 to prevent axial movement. Even when the spool shaft 4 is used in a manner that does not impart rotational resistance, the spool shaft 4 does not wobble, and the distance between the conductor 51 and the magnet 52 does not change.

Further, when preventing backlash with the braking force of the brake 5, the conductor 51 formed integrally with the spool 3 rotates within the magnetic field of the magnet 52, and with this rotation, the direction of the magnetic flux passing through the conductor 51 rotates. It changes in the direction. This change in magnetic flux generates an eddy current in the conductor 51, and according to Fleming's left hand rule, the conductor 51
A force is generated in the direction opposite to the direction of rotation of the spool 3, which provides resistance to the rotation of the spool 3.

The braking force of the brake 5 can be adjusted by rotating the operating tool 55. That is, when the operating tool 55 is rotated, this operating force is transferred from the cam surfaces 55a, 55a to the rolling elements 56, 5.
6 to the holding body 53, and the cam surface 55
As the engagement positions of the rolling elements 56 and 55a change, the holder 53 is moved in the axial direction with respect to the support cylinder 21a, and with this movement, the magnet 52 held by the holder 53 is moved. the conductor 51 of
By changing the position relative to the conductor 51, the magnetic flux density passing through the conductor 51 can be changed, and by this change, the braking force acting on the spool 3 can be adjusted.

In the embodiment described above, a reel was used in which the conductor 51 was provided on the spool 3 and the magnet 52 was provided on the bearing housing 21, but the reel may be provided in the opposite manner. Further, one of the conductor 51 and the magnet 52 is provided on the spool shaft 4 or a member supported on the spool shaft 4, and the other is provided directly on the second side frame 2 such as the bearing housing 21 or on this frame. It may be provided on a member supported by 2.

As described above, the present invention includes a reel body that supports a spool shaft having a spool in a freely rotatable manner;
An electric conductor is provided on one side of the rotating member that rotates together with the spool shaft, and a magnet that faces the conductor is provided on the other side, so that the conductor and the magnet face each other in the axial direction of the spool shaft, and the spool shaft a stopper that receives movement in one axial direction of the conductor and maintains an opposing distance between the conductor and the magnet, and contacts the end surface of the other axial end of the spool shaft to move the spool shaft toward the stopper. In a double-bearing reel equipped with a cast control that presses the spool shaft in a direction and provides resistance to rotation of the spool shaft, a stepped portion is provided on the outer periphery of one end of the spool shaft, and between the stepped portion and the cast control, The spool shaft is biased in the direction of the stopper via a sliding body, and the spool shaft is always brought into elastic contact with the stopper, so that when the cast control is operated to separate from the spool shaft, the spool shaft is free to move in the axial direction. Even if the cast control is loosened to prevent rotational resistance from being applied to the spool shaft,
It is possible to reliably prevent the spool shaft from wobbling in the axial direction, and also to reliably prevent the distance between the conductor and the magnet from changing, thereby eliminating fluctuations in the braking force of the magnetic brake.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional plan view showing one embodiment of the reel of the present invention, FIG. 2 is a cross-sectional view taken along the line of FIG. 1, and FIG. 3 is a cross-sectional view taken along the line of FIG. 1. A... Reel body, 3... Spool, 4... Spool shaft, 51... Conductor, 52... Magnet,
20...Cast control, 4b...Step part,
41...Sliding body, 42...Elastic body.

Claims (1)

[Scope of utility model registration request] An electric conductor is provided on one side of a reel body that supports a spool shaft having a spool in a freely rotatable manner, and a rotating member that rotates together with the spool shaft, and a magnet that faces the conductor is provided on the other side. a stopper that opposes the conductor in the axial direction of the spool shaft, receives movement of the spool shaft in one direction in the axial direction, and maintains a spacing between the conductor and the magnet; In a double-bearing reel equipped with a cast control that presses the spool shaft in the direction of the stopper by contacting the end surface of the other end in the direction and provides resistance to rotation of the spool shaft, a step is provided on the outer periphery of one end of the spool shaft. A section is provided between the stepped section and the cast control, and the spool shaft is biased in the direction of the stopper via a sliding body, and the spool shaft is always brought into elastic contact with the stopper, so that the cast control A double bearing reel characterized in that an elastic body is interposed to prevent the spool shaft from moving in the axial direction when the control is operated to separate from the spool shaft.