JPS6335581Y2 - - 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 depending on the speed at which the fishing line is pulled out, resulting in what is called backlash. occurs, and due to this breakdown,
The fishing line can get tangled or get caught between the spool and the reel body, so they are generally equipped with a brake.

Further, as the brake, a centrifugal brake using a brake shoe is generally used. According to this centrifugal brake, since braking is performed by bringing the brake shoe into sliding contact with the brake drum, friction of the brake shoe, etc. There was a problem that the braking force changed due to the change in the braking force, and there was also a problem that the braking force could not be adjusted from the outside.

Therefore, in order to solve the above problems, a magnet and a metal conductor are used, one of which rotates together with the spool, the other is fixed to the reel body, and the magnetic flux is rotated by the rotation of one. to generate eddy current,
According to Fleming's left-hand rule, the spool is braked by applying a force in the opposite direction to the rotating direction of the rotating member, and the stationary member is applied in the axial direction of the spool shaft with respect to the reel body. A movable device was proposed in which the braking force could be adjusted by external operation.

According to this method, since there is no contact part, it is possible to solve the problem of changing the braking force due to wear of the braking member, and the braking force can be easily adjusted by external operation. Since the reel is simply supported by the reel body and moved in the axial direction of the spool shaft, there is a problem in that the braking force cannot be adjusted accurately.

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

That is, in the present invention, a cylindrical electrical conductor is attached to a spool or a spool shaft concentrically with the spool shaft, and a magnet is attached to one of the inner circumference and outer circumference of the conductor, and a magnet is attached to the other. forming a ring with a magnetic material or magnet,
The ring is movably supported in the axial direction of the spool shaft and urged outward by a spring, while an operating tool is rotatably supported on the reel body, and the operating tool and the ring are connected to each other. It is characterized in that one of the cam surfaces is provided with a cam surface, and the other is provided with an engaging portion that engages with the cam surface.

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
is a side plate 12 with 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, and the second side frame 2 includes a side plate with a bearing housing 21 in the center. 22, and a bowl-shaped cover 23 attached to the outside of the side plate 22, and a brake 5, which will be described later, is housed inside the bearing housing 21.

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 inserted into the handle shaft 30 so as to rotate unequally so as to co-rotate with the handle shaft 30, and the master gear 32 is configured to have a loose rotation on the handle shaft 30. The rotating force from the handle shaft 30 is transmitted 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 the clutch 7 is engaged by the force applied thereto. 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 FIGS. 1 and 2, a cylindrical electrical conductor 50 is attached to the spool 3 or the spool shaft 4.
is attached concentrically to the spool shaft 4, and includes a large diameter cylindrical portion 51a and a small diameter cylindrical portion 51b,
A ring-shaped magnet 52 facing the outer circumference of the conductor 50 is provided on the inner circumferential surface of the large diameter cylindrical portion 51a.
Further, a ring 51 having a ring-shaped magnetic body 53 facing the inner circumferential portion of the conductor 50 is formed on the outer peripheral surface of the small diameter cylindrical portion 51b, and the small diameter cylindrical portion 51b of the ring 51 is Bearing housing 2
The spool shaft 4 is supported movably in the axial direction on the outer circumferential surface of a support tube 21a provided at the center of the spool shaft 4, and a spring 54 is interposed between the small diameter tube portion 51b and the support tube 21a. While urging the ring 51 outward in the axial direction, a ring-shaped operating tool 55 having cam surfaces 55a, 55a on one end surface in the axial direction can be rotated on the support portion 21b provided on the outer surface of the bottom wall of the bearing housing 21. The rotary operation knob 55b of the operating tool 55 is exposed outside the cover 23 so that it can be operated from the outside, and the outer peripheral surface of the large diameter cylindrical portion 51a of the ring 51 is provided with:
Window holes 21c, 2 provided in the bearing housing 21
The cam surfaces 55a, 55 protrude outward from 1c.
The ring 51 is made to move in the axial direction by providing engaging portions 51c, 51c that engage with the ring 51 by rotating the operating tool 55.

In the above configuration, the magnet 52 is
For example, the outer circumferential portion is annular and the inner circumferential portion is an south pole.

Further, as shown in FIG. 3, the cam surface 55a of the operating tool 55 has an axially inner end surface that is inclined toward an axially outer surface in the circumferential direction, and two cam surfaces are provided in the drawing. ing.

Further, the engaging portion 51c of the ring 51 projects radially outward from the outer peripheral surface of the large diameter cylindrical portion 51a with a phase difference of 180 degrees. Note that the engaging portion 51a may be provided on the outer end surface of the ring 51 in the axial direction.

Further, the window hole 21c of the bearing housing 21 is
It is formed into an elongated hole having a width slightly wider than the engaging portion 51c and extending in the axial direction of the ring 51 to guide the movement of the ring 51 in the axial direction and prevent rotation.

When the clutch lever 81 is operated to disengage the clutch 7 and the spool 3 is rotated freely for casting, the conductor 50 provided on the spool 3 or the spool shaft 4 along with the spool 3 is It rotates within the magnetic field of the magnet 52 and the magnetic body 53, and as the conductor 50 rotates, the direction of the magnetic flux passing through the conductor 50 changes in the direction of rotation. This change in magnetic flux generates an eddy current in the conductor 50, and according to Fleming's left-hand rule, a magnetic force is generated in the direction opposite to the direction of rotation of the conductor 50, thereby braking the spool 3.

This braking can be controlled by adjusting the ring 51 using the operating tool 55.
That is, when the operating tool 55 is rotated, this operating force is transmitted from the cam surface 55a to the ring 51 via the engaging portion 51c, and the ring 51 moves in the axial direction of the spool shaft 4, and with this movement, The positional relationship between the magnet 52 and the magnetic body 53 and the conductor 50 changes, and the number of magnetic fluxes passing through the conductor 50 can be arbitrarily changed according to the shape of the cam surface 55a. The braking force acting on the spool 3 can be adjusted.

In this adjusted state, for example, as shown in FIG.
This is maintained by a holder 56 made of a flexible plate having an engaging portion that engages with the holder 56. The holder 56 has one end attached to the side plate 22, and the other end attached to the side plate 22. The engaging portion is engaged with the uneven strip 55c. Then, the holder 56 is bent by the rotation of the operating tool 55, and the engaging portion of the holder 56 sequentially overcomes the convex portions of the uneven strip 55c and engages with one concave portion. Accordingly, the operating position of the operating tool 55 and, by extension, the adjusted state of the braking force adjusted by operating the operating tool 55 can be maintained. Further, when the engaging portion of the holder 56 crosses over the convex portion of the uneven strip 55c and engages with the concave portion, an engaging sound is generated, and by listening to this engaging sound, the braking force is adjusted. can be confirmed.

Incidentally, a magnet 52 provided on the ring 51
Although the magnet is annular, a plurality of magnets may be provided at predetermined intervals. In this case, north poles and south poles may be provided alternately. Moreover, the magnet 52
The ring 51 may be formed separately from the ring 51 and fixed by a fixing means such as adhesive, or the ring 51 may be made of synthetic resin and embedded in the ring 51 when molded. Alternatively, the ring 51 may be formed using a magnetization method. You may.

In addition, 57 in the figure indicates the magnet 52 and the ring 5.
An annular magnetic body 58 interposed between the large-diameter cylindrical portion 51a of 1 is attached to the bearing housing 21, and
A C-shaped retaining ring 59 supporting one end of the spring 54 is a set screw for preventing the operating tool 55 from coming off.

Further, in the embodiment described above, the large diameter cylindrical portion 51a
A magnet 52 facing the outer peripheral part of the conductor 50 is provided in the large diameter cylinder part 51a of the ring 51, which is provided with a small diameter cylinder part 51b, and a magnet 52 is provided in the small diameter cylinder part 51b, facing the inner peripheral part of the conductor 50. Although the magnetic material 53 is provided, on the contrary, the magnetic material 53 may be provided in the large diameter cylindrical portion 51a and the magnet 52 may be provided in the small diameter cylindrical portion 51b.
The magnet 52 may be provided on the small diameter cylindrical portion a and the small diameter cylindrical portion 51b.

Further, the operating tool 55 is provided with a cam surface 55a, and the ring 51 is provided with an engaging portion 5 that engages with the cam surface 55a.
1c is provided, but the opposite may be used. In this case, the operating tool 5 is attached to the bearing housing 21.
A circumferential window hole is provided for receiving the engaging portion of ring 51, and the cam surface 55a is provided on the axially outer end surface of the ring 51.
The engaging portion 51c is provided on the outer circumferential surface or the inner end surface in the axial direction of the operating tool 55.

As described above, the present invention has a cylindrical electrical conductor attached to a spool or a spool shaft, a magnet facing one of the inner and outer peripheral parts of the conductor, and a magnetic body or magnet facing the other. Since the ring is provided, the spool can be braked using the magnetic force of the magnet, the ring is movably supported in the axial direction of the spool shaft, and the cam surface is biased outwardly by the spring. The operating tool is rotatably provided, and the ring is provided with an engaging portion that engages with the cam surface, so that the amount of movement of the ring in the axial direction relative to the rotation angle of the operating tool can be adjusted freely. For example, at the beginning of braking, the amount of movement of the ring relative to the rotation angle of the operating tool is increased to quickly apply the minimum amount of braking, and thereafter, the amount of movement of the ring relative to the rotation angle of the operating tool is reduced. It is possible to brake while making fine adjustments. Therefore, the braking force can be adjusted arbitrarily and accurately within a desired adjustment range by operating the operating tool, and backlash can be reliably prevented.

[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 sectional view taken along the line shown in Fig. 1, Fig. 3 is an exploded perspective view of the main parts, and Fig. 4 is a perspective view of only the operating tool. , FIG. 5 is an explanatory diagram of a state in which the braking force is adjusted. A... Reel body, 3... Spool, 4... Spool shaft, 50... Conductor, 51... Ring, 51
c...Engaging portion, 52...Magnet, 53...Magnetic material, 54...Spring, 55...Operation tool, 5
5a...Cam surface.

Claims (1)

[Scope of utility model registration request] A double-bearing reel that supports a spool shaft with a spool in the reel body for free rotation.
A cylindrical electrical conductor is attached to the spool or the spool shaft concentrically with the spool shaft, and a magnet faces one of the inner and outer peripheral parts of the conductor, and a magnetic body or magnet faces the other. A ring is formed with a ring, the ring is movably supported in the axial direction of the spool shaft, and is biased outwardly by a spring, while an operating tool is rotatably supported on the reel body. A double-bearing reel, characterized in that one of the operating tool and the ring is provided with a cam surface, and the other is provided with an engaging portion that engages with the cam surface.