JPH0325578Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a spool braking device for a fishing reel, and more specifically, when the spool is freely rotating in a double-bearing reel and the fishing line is reeled out, the fishing line is caused by excessive rotation of the spool. The present invention relates to a brake device that prevents crashes.

As a brake device for this kind of double-bearing reel, a means is generally adopted in which a claw piece is engaged with a gear that rotates integrally with the spool, or a means of pressing down on the spool shaft, but these methods are not mechanical means. Because it is a product, there are many factors that can cause failures.
Moreover, when the brake force is applied, metal members come into contact with each other and generate noise.

The present invention was developed in view of the conventional circumstances described above, and uses the principle that the electromagnetic force between eddy current and magnetic flux brakes the rotation of a rotating body. By generating an eddy current in the radial direction and applying a brake to the rotation of the spool, the failure-causing factors found in conventional means are eliminated, and there is no worry of noise generation, and furthermore, it can be used over a wide range without any steps. This provides a brake device that can be adjusted.

The brake device of the present invention that achieves this purpose is
A slide plate, in which magnets are arranged so that their magnetic poles alternate in correspondence with one outer surface of a spool made of a non-ferrous material rotatably supported between the left and right side plates, is housed in the side plate so as to be slidable back and forth. The slide plate is freely rotatably attached to the outside of an adjustment nut that is screwed into the threaded tube of the bearing mounting plate, and the center of the side end surface of the adjustment nut has a regular square shape, and a circular arc surface with a corner left in one half. A hooking hole is opened, a square rod portion that engages with the hooking hole is formed at the tip, and a hooking rod having a circular rod portion having a cross section of the inscribed circle of the square rod portion is protruded on the base side. The gist is that the provided adjustment knob is fitted into an opening in the side plate so that it can be moved in and out.

The spool in the double bearing reel of the present invention is made of conductive non-ferrous material and is molded into a shape well known today, and a magnetic brake device is installed in the side plate corresponding to one side of the spool. The side plate on which the device is installed may be on either the A pan side or the B pan side, but if storage space is considered in consideration of other mechanical components stored in the side plate, the B pan is on the opposite side from the handle mounting side. The side is convenient.

The magnets arranged on the slide plate are attached in a ring shape at appropriate intervals and correspond to the outer surface of the spool.The magnets are arranged parallel to the outer surface of the spool, or are arranged protruding from the outer surface of the spool. The annular protrusions may be arranged so as to sandwich them from the inside and outside, and furthermore, the magnets are arranged so that adjacent magnets and magnetic poles alternate, and eddy current is generated by the rotation of the spool. The brakes are working.

The mechanism for sliding the slide plate equipped with the magnet in the axial direction is attached so as to move integrally with an adjustment nut that is threaded into a threaded tube protruding from the outside of the bearing mounting plate, and the adjustment nut is operated from the outside of the side plate. By engaging and disengaging the adjustment knob that allows the bullet to be ejected and retracted freely, and rotating the adjustment knob in the engaged state, the adjustment nut is rotated together to adjust the distance between the magnet and the spool side.

Hereinafter, one embodiment of the present invention will be explained based on the drawings. Fig. 1 is a cross-sectional view showing the B plate side where the brake device is installed, 1 is a spool made of non-ferrous material and molded into a shape well known today, The spool 1 is rotatable with a spool shaft 2 fixed along its axis supported by left and right side plates. The bearing of the spool 1 on the B plate side is a bearing mounting plate 4 attached to the side plate 3.
A donut-shaped magnetic plate 7 on which magnets 6 are arranged and fixed is housed in a space defined by the bearing mounting plate 4 and the outer surface of the spool 1. 7 erects and fixes a leg rod 8 at a diametrically opposed point on the surface opposite to the surface on which the magnet 6 is attached, and externalizes the leg rod 8 through a through hole 9 drilled in the bearing mounting plate 4. A donut-shaped slide plate 10 is screwed and fixed to the projecting end thereof.

Disc-shaped permanent magnets are used as the magnets 6, and eight magnets are arranged at equal intervals in the circumferential direction on one side of a donut-shaped magnetic plate, and adjacent magnets 6 have N and S poles. The arrangement is fixed so that they alternate.

The slide plate 10 is fitted on the outside of an adjustment nut 12 that is threaded into a threaded cylinder 11 protruding from the center of the outer surface of the bearing mounting plate 4 and moves in the axial direction, and is engaged and integrated with a retaining ring 13. At the same time, a coil spring 14 is forcefully inserted between the bearing mounting plate 4 and the slide plate 10 to constantly urge the slide plate 10 outward and urge the magnet 6 in a direction away from the outer surface of the spool 1. There is.

The adjustment nut 12 has a square engagement hole 15 in the center of its side end surface, and an arcuate shape with a corner left in one half (the left half in the drawing) of the adjustment nut 12, and is engaged with and disengaged from the engagement hole 15. An adjustment knob 16 for rotating the adjustment nut 12 is fitted into an opening 17 of the side plate 3 and is attached so as to be rotatable and retractable.

The adjustment knob 16 is formed in the shape of a stepped disc, and has a finger hook 16' integrally protruding along the diameter line of the outer surface, and a finger hook 16' that is fitted into the engagement hole 15 of the adjustment nut 12 at the center of the inner surface. A hooking rod 18 that engages and disengages is formed protrudingly, and a toothed portion 19 is formed on the outer periphery of the rear end of the adjustment knob 16, and a claw piece 20 attached to the side plate 3 side is engaged with the toothed portion 19.

The engaging rod 18 formed on the adjustment knob 16 has a front half thereof in the longitudinal direction as a square rod portion 18a having a square cross section with a slightly smaller diameter than the square hole of the engaging hole 15, and a rear half thereof as a front half. The circular rod portion 18b has a cross section of an inscribed circle of a regular quadrilateral, and
A hooking protrusion 18c is provided on the outer peripheral surface of the circular rod portion 18b to protrude along the axis, and a coil spring 25 is clamped between the tip recess of the locking rod 18 and the center recess of the bearing mounting plate 4. The square rod portion 18a of the adjustment knob 16 is resiliently biased in the direction in which it engages with the engagement hole 15.

With the above configuration, the adjustment knob 16 and adjustment nut 1
2 is engaged by the engagement of the engagement hole 15 and the engagement rod part 18, and the distance between the outer surface of the spool 1 and the magnet 6 can be adjusted by rotating the adjusting nut integrally and sliding the slide plate 10 back and forth along the axial direction. It is something that can be adjusted.

In addition, in the state shown in FIG. 5, the adjustment knob 16 is pushed inward against the elastic force of the coil spring 25, and the circular rod portion 18b of the engaging rod portion 18 is inserted into the engaging hole 15.
If the knob 16 is rotated counterclockwise while the engaging protrusion 18c is engaged with the engaging hole 15, the adjusting nut 12 will also be fully rotated, allowing the brake force to be adjusted (between the magnet and the spool). Malfunctions during distance adjustment can be avoided. Incidentally, even when the adjustment knob 16 is rotated clockwise in the state shown in FIG. 3, the adjustment nut 12 is also rotated together. 21 is a boss provided on the side plate 3 side, 22 is a boss provided on the adjustment knob 16 side, 23 is a pointer displayed on the adjustment knob 16, 24 is a brake adjustment scale displayed on the side plate 3 side, and the pointer 23 is on the scale 24. When "10" is displayed, the distance between the outer surface of the spool 1 and the magnet 6 is at its minimum, indicating strong braking force.

Therefore, the distance between the outer surface of the spool 1 and the magnet 6 is within the range of "10 to 1" on the scale 24, that is, [1 pitch of the shake adjustment nut 12] x [possible rotation angle of the adjustment knob 16]/360°. brake force can be adjusted.

Next, to explain the adjustment of the brake force, the distance between spool 1 and magnet 6 is adjusted by adjusting nut 1.
2 and the adjustment knob 16 are engaged as shown in FIG.
When the pointer 23 points to "10" on the scale 24 in Fig. 6, the minimum distance l is reached, and the adjustment nut 12 and the bearing mounting plate 4 come into contact at point A (see the braking force MAX state in Fig. 1). , and the boss 22 of the adjustment knob 16 and the boss 21 of the side plate 3 collide, and the adjustment knob 1
6 can no longer be rotated clockwise.

When the adjustment knob 16 is turned counterclockwise in the above meshed state so that the pointer 23' points to "1" on the scale 24 in FIG. cannot rotate], and the magnet 6 moves in the direction from 0 to 1 mm as shown in FIG.

Also, by changing the engagement between the adjustment nut 12 and adjustment knob 16, the magnet 6 and spool 1 can be adjusted.
In the case of FIG. 4, the range in which the distance can be adjusted, that is, the adjustment range of the brake force, can be changed to the range of FIG. 10 in the case of FIG.

Further, the adjustment knob 16 and the adjustment nut 12 are normally in a meshed state, and the meshed state can be released by pushing the adjustment knob 16 in the axial direction. Therefore, align the pointer 23 of the adjustment knob 16 with "1" on the scale 24, push it in the axial direction (see Figures 5 and 7), turn it 90 degrees clockwise, and release the push. The engagement between the adjustment nut 12 and adjustment knob 16 is
90° change from the state before operation (Adjusting nut 1/4
It is possible to shift the brake width in the direction of loosening by the amount of pitch). FIGS. 8 and 9 are diagrams showing other examples of the arrangement of magnets on the spool.

Since the brake device of the present invention has the above-described structure, the brake is applied by the electromagnetic force of the magnet, and the braking force acts quietly without noise, and since it is non-contact, the brake is applied to the components. There are no problems caused by wear.

Furthermore, the strength of the electromagnetic force of the magnet can be adjusted by rotating the adjustment knob, so that the optimum braking force can be applied depending on the fishing situation.

In addition, the adjustment knob that moves the magnet toward and away from the spool can be freely engaged with and disengaged from the adjustment nut, so the range of movement of the magnet can be adjusted by changing the engagement position between the adjustment knob and the adjustment nut. . Therefore, it is possible to use the magnet according to the optimum movement range depending on the fish to be caught.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a sectional view with the braking force set to strong, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, and Fig. 3 is a sectional view taken along the line 2-2 in Fig. 1. 1
A cross-sectional view taken along line 3-3 in the figure, Figures 4 and 5 are cross-sectional views with the adjustment knob turned 90 degrees to the left, and Figure 6 is the relationship between the pointer of the adjustment knob and the scale on the side plate. 7 is a cross-sectional view of the state where the adjustment knob is pushed in and the adjustment knob and adjustment nut are disengaged,
FIGS. 8 and 9 are cross-sectional views showing other arrangement states of the magnets, and FIG. 10 is an explanatory view showing changes in the adjustment width due to rotation of the adjustment knob. In the figure, 1: spool, 3: side plate, 6: magnet, 10: slide plate, 11: screw tube, 12: adjustment nut, 16: adjustment knob.

Claims (1)

[Scope of utility model registration request] A slide plate, in which magnets are arranged so that their magnetic poles alternate in correspondence with one outer surface of a spool made of a non-ferrous material rotatably supported between the left and right side plates, is slidable back and forth and stored in the side plate. The slide plate is freely rotatably attached to the outside of an adjustment nut that is screwed into the threaded tube of the bearing mounting plate, and the center of the side end surface of the adjustment nut has a regular square shape and an arcuate surface with a corner left in one half. A square rod part is formed at the tip to engage with the engaging hole, and the base side is a circular rod part having a cross section of the inscribed circle of the square rod part. An adjustment knob is provided on the outer circumferential surface of the side plate with a protruding rod that is parallel to the axis and has a protrusion that abuts the boundary between the arcuate surface and the square surface of the hooking hole. Brake device for the spool of a fishing reel fitted with mating equipment.