JPS6238538Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a fishing line buckling prevention device using a magnet.

In a conventional backlash prevention device of this type, eddy current generating devices using magnets are installed on the inside and outside of a non-excavating conductive ring provided on the spool.
No particular consideration has been given to the way this eddy current generator is attached to the reel side plate, and it is particularly difficult to place them concentrically with the spool shaft and facing the conductive ring with as small a gap as possible with high precision. Therefore, braking force cannot be exerted efficiently, and if the reel hits a rock or falls, the impact may cause the gap accuracy with respect to the conductive ring to be disturbed or the position to shift.

The present invention is an attempt to improve these defects, and a deep-bottom dish-shaped holding case is fixed to the inner frame of the reel side plate, which does not house the drive mechanism, so as not to contact the outer plate of the reel side plate. death,
The tip of the spool shaft to which the spool is fixed is supported via a bearing in a shaft cylinder integrally protruding from the inner bottom surface of the holding case toward the spool side, and a non-magnetic material is inserted from one side of the spool into the annular part of the holding case. A conductive ring body is provided protrudingly provided, and further, eddy current generators using magnets are adjustably provided on the outer periphery of the shaft cylinder and the outer periphery of the holding case so as to face inside and outside with the conductive ring sandwiched therebetween. The main points are as follows.

An embodiment of the present invention will be described with reference to the drawings. Reel side plates 1 and 2 of a double bearing type reel are respectively formed of outer plates 3 and 3' and inner frames 4 and 4'. A handle 5 and a drive gear mechanism (not shown) are provided to rotate a spool shaft 7 to which a spool 6 is fixed, and a deep-bottomed dish-shaped holding case 8 is attached to the outer plate 3' on the inner frame 4' of the reel side plate 2. The tip of the spool shaft 7 is inserted through a bearing 10 into a shaft cylinder 9 that is fitted and fixed inward so as not to come into contact with the spool 6 and integrally projects from the center of the inner bottom surface of the holding case 8 toward the spool 6. I support it.

An inner magnetic pole ring 13 consisting of an annular magnet 11 having an arbitrary number of poles and an annular yoke 12 made of a magnetic material fitted to the inner peripheral surface of the annular magnet 11 is fixed to the outer surface of the shaft tube 9 of the holding case 8. At the same time, on one side of the spool 6, a conductive ring body 14 made of a non-magnetic material such as aluminum copper is provided to protrude into the holding case 8 so as to be located outside the inner magnetic pole ring body 13.

Further, on the inner circumferential surface of a rotary cylinder 15 rotatably provided at the bottom of the holding case 8, there are annular magnets 16 located outside the conductive ring body 14 and having an arbitrary number of poles and fitted onto the outer circumferential surface thereof. An outer magnetic pole ring body 18 made of an annular yoke 17 made of a magnetic material is fixed, and meshing teeth 19 formed on the outer peripheral surface of the rotary cylinder 15 are exposed through a notch 20 provided in the holding case 8 and are attached to the outside. The operating knob 21 is engaged with the gear 22 of the operating knob 21 which is pivotally supported on the plate 3', and the rotation of the operating knob 21 rotates the rotating cylinder 15, so that the outer magnetic pole ring body 18 is positioned opposite to the inner magnetic pole ring body 13. It is constructed so that it can be displaced.

Therefore, the flange portion 6' of the spool 6 is attached to the fitting and fixing portion of the holding case 8 to the inner frame 4'.
A fishing line bite prevention edge 23 that fits with a small gap between the fishing line and the fishing line is integrally formed.

Since the embodiment of the present invention is constructed as described above, by rotating the operating handle 21, the outer magnetic pole ring 18 is fixed to the inner magnetic pole ring 13 via the gear 22 and the rotation tube 15. When the annular magnet is rotated, the air gap magnetic flux density of the annular magnet changes according to the rotation angle, and the eddy current generated in the conductive ring body 14 is changed to adjust the braking force to prevent the fishing line from collapsing. It is.

In the above embodiment, the outer magnetic pole ring is rotated, but it may be fixed and the inner magnetic pole ring rotated, and the magnets used therein must be ring-shaped. Instead, they can be provided intermittently on the outside or inside of the yoke as shown in Figure 6.
The eddy current generator using a magnet can be selected arbitrarily, and the holding case can also be formed integrally with the inner frame.

In this invention, a deep-bottom dish-shaped holding case is fixed to the inner frame of the reel side plate that does not house the drive mechanism, and conductive ring bodies made of non-magnetic material that protrude from the spool are placed inside and opposite to each other inside the holding case. An eddy current generating device using a magnet is provided in an adjustable manner so that the spool shaft tip is supported via a bearing in a shaft cylinder integrally protruding from the inner bottom surface of the holding case toward the spool side, and the spool shaft tip is supported via a bearing. Since the eddy current generator inside the conductive ring is supported in the part, the axial width of the reel side plate can be shortened, making it possible to reduce the width of the double-bearing reel. The generator can be supported simply and stably, and the concentric accuracy can be maintained easily and with high precision during assembly and use of the eddy current generator using the conductive ring of the spool and the magnets facing each other with this in between. By making the gap very small and increasing the air gap magnetic flux density, the spool braking force can be maximized efficiently.

In addition, in this invention, the bearing part of the spool shaft and the eddy current generator are housed and supported in a holding case fixed to the inner frame of the reel side plate, so if the outer plate of the reel hits a rock or falls, The impact of
There is no risk of the shaft support or eddy current generator becoming inaccurate or misaligned, and there is no risk of magnetic lines of force leaking to the outer plate and depositing iron sand.Furthermore, the edge to prevent the fishing line from getting bitten is integrated into the holding case. Once formed, alignment accuracy for the spool flange becomes easier,
It has excellent features and practicality, such as being more suitable.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view of the present invention, Figure 2 is a longitudinal side view of the same, Figure 3 is a perspective view of the main parts of the present invention, and Figure 4 is a partially cutaway front view of the present invention.
5 and 5 are explanatory diagrams showing the braking mode of the present invention, respectively. FIG. 4 shows the braking force at the maximum, FIG. 5 shows the braking force at the minimum, and FIG. 6 shows the braking of another embodiment of the present invention. It is an explanatory view showing an aspect. 1, 2... Reel side plate, 3, 3'... Outer plate,
4, 4'...Inner frame, 6...Spool, 7
... Spool shaft, 8 ... Holding case, 9 ... Shaft cylinder, 10 ... Bearing, 12 ... Annular yoke, 1
3... Inner magnetic pole ring, 14... Conductive ring, 15...
...Rotating tube, 17...Annular yoke, 18...Outer magnetic pole ring, 19...Meshing teeth, 21...Operation handle.

Claims (1)

[Scope of utility model registration request] A deep-bottom dish-shaped holding case is fixed to the inner frame of the reel side plate that does not house the drive mechanism so as not to come into contact with the outer plate of the reel side plate, and is integrally fixed from the inner bottom surface of the holding case toward the spool side. The tip of the spool shaft to which the spool is fixed is supported in the protruding shaft cylinder via a bearing, and a conductive ring made of a non-magnetic material is protruded from one side of the spool into the annular portion of the holding case, and the shaft cylinder A backlash prevention device for a double-bearing type reel, wherein eddy current generators using magnets are adjustably provided on the outer periphery and on the outer periphery of the holding case so as to face inside and outside with the conductive ring sandwiched therebetween.