JPS635487Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a backlash prevention device for a double-bearing reel that is easy to assemble by providing a magnetic pole identification mark on the magnet.

Conventionally, this type of backlash prevention device has a synthetic resin ring with yokes 17 arranged on the inner and outer surfaces of a non-magnetic conductive ring fixed to one side of the spool flange, respectively, or on the outer surface as shown in FIG. A body 9 is provided,
Magnets 19 are inserted and assembled into equally spaced slot grooves 9a formed in this synthetic resin ring body so that the magnets 19 have N and S poles alternately.

However, the magnet is a small disk with N and S poles magnetized on the upper and lower end faces, and must be inserted into the slot groove so that the N and S poles alternate as shown above, but each magnetic pole is not displayed. In this case, one of the magnetic poles must be aligned in advance, divided into two sets, and arranged, and during assembly work, the two sets must be picked up and assembled alternately. If they are lined up with their magnetic poles aligned, the magnets will attract each other with magnetic force, and the disadvantage is that they must be separated each time they are picked up for installation.

In view of the above-mentioned drawbacks, the purpose of the present invention is to attach an identification mark to one magnetic pole surface of the magnet, so that even if the magnet is taken up unconsciously, the identification mark allows the N and S poles to be easily alternated when attached to a synthetic resin ring. The purpose of the present invention is to propose a backlash prevention device for a double-bearing type fishing reel that can be assembled.

Hereinafter, the present invention will be explained with reference to the illustrated embodiment. In FIGS. 2 and 3, the double bearing type reel has reel side plates 1 and 11 held in parallel by a support 12, and a spool 2 between both reel side plates. The spool shaft is fixed to a spool shaft 3, and the spool shaft is rotatably supported on one bearing 13 and the other bearing (not shown), and the handle 1 is connected to the handle 1 through a clutch mechanism (not shown) and a gear train mechanism (not shown).
4, and the bearing 13 is connected to the inner side of the reel side plate 1 and the frame 1 through the holding case 4.
It is fitted and fixed in the through hole 5.

The holding case 4 is formed into a cup shape with a bottom, and has a shaft tube 4a projecting from the bottom, and the bearing 13 is fitted and fixed in the center hole of the shaft tube.

An inner magnetic pole ring 5 is fitted and fixed on the outer periphery of the shaft tube 4a, and a non-magnetic material such as aluminum or copper is fixed to one side of the flange 2a of the spool 2 with a gap on the outside of the outer periphery. A cup-shaped conductive ring body 6 with a bottom is arranged, and an outer magnetic pole ring body 7 is rotatably held along the inner circumferential wall of the holding case 4 with a gap further outside the outer circumference of the conductive ring body 6. magnetic pole ring 7
A pinion 16 rotatably supported on the reel side plate 1 is engaged with a tooth profile 7a formed on the outer periphery of the reel.

The inner and outer magnetic pole ring bodies 5 and 7 have yokes 10 on the inner and outer sides of the large and small synthetic resin ring bodies 8 and 9, respectively.
17 are fitted and fixed, and the synthetic resin rings 8,
As shown in FIGS. 4 to 7, grooves 8a and 9a are formed at equal intervals in 9, and magnets 18 and 19 are inserted into the grooves, and the magnets are attracted to the yokes 10 and 17 by their magnetic force, and are attached to the magnetic pole rings. bodies 5 and 7 are constructed.

The magnets 18 and 19 are formed of small round discs, with N and S poles magnetized on the upper and lower end surfaces, and one of the magnetic poles is marked with an identification mark A using, for example, white paint. N and S poles are inserted into the slotted grooves 8a and 9a so that they are alternately arranged on one side.

As mentioned above, if the identification mark A is placed on one of the magnetic poles of the magnets 18 and 19, when assembling the N.
Identification mark A on every other pole without being conscious of the S pole
By inserting the magnet into the slotted groove so that the magnet is exposed to the front side, the magnet can be properly assembled and the assembly work becomes extremely easy.

In addition to using white paint, the identification mark A may be made of paint of another color, or a recess or a notch at the end.

The pinion 16 may be meshed with a gear provided so as to rotate integrally with the inner magnetic pole ring 5.

Since the present invention is constructed as described above, the magnet can be assembled very easily to the synthetic resin ring body without being aware of the polarity between N and S poles, and the identification marks should be checked to alternately appear on the front side. Therefore, it is possible to provide a backlash prevention device for a double-bearing fishing reel, which has excellent practical effects such as the arrangement of the magnetic poles being inspected and no skill required for assembly.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view of a synthetic resin ring body with a yoke fitted and a magnet attached, Fig. 2 is a cross-sectional plan view of the main part of a double bearing type reel, and Fig. 3 is a - of Fig. 2.
Fig. 4 is a cross-sectional side view of the outer synthetic resin ring body with magnets assembled therein, Fig. 5 is a plan view of the outer magnetic pole ring body, and Fig. 6 shows the magnets assembled in the inner synthetic resin ring body. FIG. 7 is a plan view of the same cross-sectional side view. 1... Reel side plate, 2... Spool, 2a...
Flange, 4... Holding case, 5, 7... Magnetic pole ring, 6... Nonmagnetic conductive ring, 8, 9... Synthetic resin ring, 10, 17... Yoke, 18, 19... Magnet , A...Identification mark.

Claims (1)

[Scope of utility model registration request] A holding case is fixed to a side plate opposite to one side of the spool flange, and a non-magnetic conductive ring fixed to one side of the spool flange is provided protruding into the holding case, and an inner part of the conductive ring inside the holding case is provided. A synthetic resin ring body with a yoke arranged on the inner circumferential surface or outer circumferential surface, respectively, is provided on the outside so that either one can rotate freely, and the upper and lower end surfaces are magnetized with N and S poles, and an identification mark is attached to one of the magnetic poles. A plurality of the applied magnets are attached to the synthetic resin ring body at equal intervals so that the facing surfaces of the conductive ring bodies are alternately N and S poles to form a magnetic pole ring, and the identification mark indicates the assembly of the magnets. A device for preventing crashing of a double bearing type reel for fishing, which is characterized by being easy to use.