JP2018201484A - Spinning reel - Google Patents

Abstract

An object of the present invention is to solve the problem of friction, uneven wear and seizure related to contact between both a spool shaft and a rotary shaft cylinder which are arranged close to each other, to improve reel characteristics, and to provide fishing with easy maintenance. Provision of spinning reels. A fishing spinning reel having a structure in which a rotor is rotated by rotating a rotating shaft cylindrical portion of a pinion coaxial with the spool shaft while moving the spool shaft in the front-rear direction. A housing for holding the component in a predetermined position is formed as one integrated component, the spool shaft 106 is movably in contact with the reel body via a rear bushing, and the rotary shaft tube portion 134 is via a front bushing. And a predetermined clearance is maintained between the spool shaft 106 and the rotary shaft cylinder 134 by a rear bushing and a front bushing, and at least one of the rear bushing and the front bushing is made of resin. It is made. [Selection diagram] FIG. 2A

Description

  The present invention relates to a support structure for a spool shaft of a spinning reel for fishing and a rotating shaft of a rotor.

  The spinning reel for fishing is provided with a spool for winding the fishing line to a uniform winding thickness and a rotor for guiding the fishing line at the tip. The spool slides in the front-rear direction by the rotation of the handle, and the rotor moves in one direction. Rotate to. The rotation of the handle is converted into sliding of the spool shaft by the oscillating mechanism inside the reel, and as a result, the spool moves back and forth. On the other hand, the rotation of the rotor is converted into the rotation of a pinion fixed to the rear end of a cylindrical rotor rotation shaft (rotary shaft cylinder) provided coaxially with the spool shaft so as to surround the spool shaft. Then, the rotor fixed to the rotating shaft cylinder is rotated. Because of this structure, the spool shaft and the rotating shaft cylinder are arranged close to each other, so if a heavy load is applied during the winding operation, the friction between the two will increase, and in this state it will be used for a long time. If continued, there was a problem that problems such as uneven wear and seizure occurred. In addition, in order to prevent this, there is a problem in that the manufacturing cost increases when the contact surfaces of the two are finished to a high-precision smooth surface.

  In order to solve the above-described problem, in Patent Document 1, a small gap is formed between the inner peripheral surface of the rotor shaft and the outer surface of the spool shaft by holding the front and rear portions of the rotor shaft with bearings. Provided. However, in the configuration of Patent Document 1, since the bearing that supports the pinion portion also supports the spool shaft at the same time, there is a drawback in that resistance to the sliding movement of the spool shaft is likely to occur when a heavy load is applied. A method for improving this drawback is disclosed in Patent Document 2. In order to remedy the drawbacks of Patent Document 1 shown in the schematic diagram of FIG. 1, in Patent Document 2, the rotating shaft cylinder 9 and the spool shaft 2 are supported at two locations of the front bearing 7 and the rear bushing 8. The load is distributed.

  However, in the configuration of Patent Document 2, since the number of bearings is increased as compared with the configuration of Patent Document 1, the number of contacts is increased, and the number of parts is increased and the structure is complicated. There was a problem that it was disadvantageous for reduction. Furthermore, the structure that is fixed by the rotor nut 11 through the screw portion 10 of the rotating shaft cylinder 9 makes it difficult to eliminate the radial play of the screw portion 10, and as a result, the front bearing 7 supported by the rotor nut 11. However, since the center position is shifted from the center of the rotating shaft cylinder 9 by the backlash of the screw portion 10 described above, there is a problem that good rotation cannot be obtained.

Japanese Utility Model Publication No. 50-24542 Japanese Patent No. 3563656 US Pat. No. 6,050,513

  The object of the present invention is to solve the above-mentioned problems related to the contact between the reel shaft and the spool shaft, improve the center position accuracy of the gear related to the reel rotation performance, and improve the operability and durability of the reel. Another object of the present invention is to provide a fishing spinning reel that is easy to maintain.

  In the present invention, a housing for holding mechanical parts including a handle shaft, an oscillating mechanism, and a spool shaft in a predetermined position in the reel body is formed as one integral part, and a front rotary shaft cylinder and a spool shaft are formed. Instead of a conventional support method using a ball bearing between the two, a resin bearing is used.

  The present invention provides the following spinning reels.

The rotation of the handle shaft is converted into sliding of the spool shaft by the oscillation mechanism inside the reel body, so that the spool coupled to the spool shaft slides in the front-rear direction and the rotation of the handle shaft is Fishing having a structure in which a rotor coupled to the rotating shaft cylinder portion of the pinion is rotated and transmitted as rotation of a pinion having a gear portion and a rotating shaft cylinder portion, which is provided so as to surround the spool shaft and is coaxial with the spool shaft. Spinning reel for
A housing that holds mechanical parts including the handle shaft, the oscillating mechanism, and the spool shaft in a predetermined position in the reel body is formed as one integral part,
The spool shaft movably contacts the reel body via a rear bushing;
The rotating shaft cylinder portion is rotatably contacted with the spool shaft through a front bushing,
A predetermined gap is maintained between the outer periphery of the spool shaft and the inner periphery of the rotating shaft cylinder portion by the rear bushing and the front bushing,
The front bushing is inserted into the gap after passing the rotating shaft cylinder portion through the spool shaft,
At least one of the rear bushing and the front bushing is made of resin.

  The resin material may be at least one of POM (polyacetal), PA (polyamide), PPS (polyphenylene sulfite), and PEEK (polyether ether ketone).

  By adopting the support structure of the rotating shaft cylinder and the spool shaft as in the present invention, it is possible to provide a fishing spinning reel that improves the operability and durability of the reel and that is easy to maintain.

FIG. 1 is a schematic cross-sectional view showing the structure of a main mechanism portion of a conventional spinning reel. FIG. 2A is a cross-sectional view of a main mechanism portion of the spinning reel according to the embodiment of the present invention. 2B is an enlarged view of a portion B in FIG. 2A. FIG. 2C is an enlarged view of a portion C in FIG. 2A.

  Embodiments of the present invention will be described below in detail with reference to the drawings. However, the present invention is not limited to the embodiments described below.

  FIG. 2A shows a cross-sectional view of the structure of the reel body 120 and the rotor 130 in the fishing spinning reel 100 according to the embodiment of the present invention. 2B3 is an enlarged view of the dotted line portion B in FIG. 2A, and FIG. 2C4 is an enlarged view of the dotted line portion C. The rotation of the handle 110 is converted into a sliding (reciprocating) motion of the spool shaft 106 by an oscillating mechanism including the gear 102, the slider 104, etc., and the spool 160 fixed to the spool shaft 106 is reciprocated. At the same time, the rotation of the handle 110 is caused by the rotation of the face gear 114 coupled to the handle shaft 112, the rotation of the pinion gear portion 133 (hereinafter abbreviated as the gear portion 133), and the pinion rotation shaft cylinder portion 134 (hereinafter the rotation shaft). The rotor 130 fixed to the rotating shaft cylindrical portion 134 is rotated. The rotating shaft cylinder part 134 is rotatably held on the reel body 120 via two ball bearings 136 and 138. Further, the rotor 130 is rotated only in one direction by the one-way bearing 137. In addition, the pinion according to the present embodiment is used as an integrated independent part having a gear portion and a rotating shaft cylinder portion, but is not limited to this. The gear part and the rotating shaft cylinder part may be used as a pinion by being combined as a separate part by a coupling means such as welding.

  As can be seen from FIG. 2A, since the spool shaft 106 and the rotating shaft cylinder portion 134 always move in a direction perpendicular to each other, by providing a gap 132 of 0.1 to 0.2 mm between them, Avoid friction. In order to maintain this gap 132, the spool shaft 106 is movably held on the reel body 120 via a cylindrical rear bushing 122 with a flange, and the rotating shaft cylinder portion 134 has a cylindrical front portion with a flange. The spool shaft 106 is rotatably contacted via the bushing 142. Further, the nut 140 is fixed to the rotating shaft cylinder portion 134 in order to prevent the front bushing 142 from moving from a predetermined position. The front bushing 142 and / or the rear bushing 122 are not limited to the bushing, and may be replaced with a bearing depending on the actual situation.

  In the present invention, a resin is used as a material for the rear bushing 122 and / or the front bushing 142. As the material of the resin, a hard material such as POM (polyacetal), PA (polyamide), PPS (polyphenylene sulfite), PEEK (polyether ether ketone) can be used. Thereby, cost reduction of a bearing is realizable. However, the material of the rear bushing and the front bushing is not limited to this, and an inorganic material such as carbon or ceramic may be used as long as it is a wear-resistant material.

  Further, according to the present invention, the gear box 108 including the handle shaft 112, the face gear 114, the oscillating mechanism and the like in the reel main body is incorporated into the gear box as described in detail in Patent Document 3. In order to hold it precisely at a predetermined position inside 108, it is configured as one integrated part. More specifically, since each hole of the gear box 108 into which the bearings 116 and 118 that support the face gear 114 are fitted is formed by CNC machining, high positional accuracy can be maintained. Further, the rotation shaft cylinder portion 134, the bearings 136 and 138 that support the spool shaft 106, and the gear box 108 in which the rear bushing 122 is fitted are also formed with high positional accuracy by CNC machining. Therefore, it is possible to maintain high accuracy coaxial accuracy.

  In addition to this, as described above, a resin-made cylindrical bearing is inserted into the gap without using a conventional ball bearing as a front bushing portion having a particularly large friction (for example, Patent Document 2). Thus, the housing of the gear box 108 incorporating the above components and the spool shaft 106 held by the gear box 108 can be easily pulled out from the rotary shaft cylinder portion 134 coupled to the rotor 130. Conversely, when attaching the rotating shaft cylinder part 134 and the rotor 130, the front bushing 142 may be inserted into the gap after the rotating shaft cylinder part 134 is passed through the spool shaft 106 and fixed with the nut 140. Therefore, the maintenance, repair, and reassembly of the reel can be performed more easily than the conventional structure using the ball bearing as the bearing.

  On the other hand, in the conventional structure where the gear box has a structure in which parts such as a handle shaft, a face gear, and an oscillating mechanism are attached to the housing, and then the side plate is screwed to the housing, the handle shaft is assembled. It is not easy to assemble while keeping the positional relationship between 112 and the spool shaft 106 in an accurate vertical position. When the screw shaft is fastened, the spool shaft 106 is attached with a slight inclination from the vertical position. There is a drawback that friction with the portion 134 is likely to occur. In the present invention, since the vertical positional relationship between the handle shaft 112 and the spool shaft 106 is always accurately maintained, the gap 132 is always accurately set to a predetermined value even after the reel is reassembled after maintenance and repair. Can be maintained.

1 Reel body 2 Spool shaft 4 Rotor 5 Handle shaft 6 Pinion 7 Front bearing 8 Rear bushing 9 Rotating shaft cylinder 10 Screw portion 11 Rotor nut 100 Spinning reel 102 Gear 104 Slider 106 Spool shaft 108 Gear box 110 Handle 112 Handle Shaft 114 Face gear 116, 118 Bearing 120 Reel body 122 Rear bushing 130 Rotor 132 Clearance,
133 Pinion gear part 134 Pinion rotating shaft cylinder part 136, 138 Ball bearing 137 Unidirectional bearing 140 Nut 142 Front bushing

Claims (2)

The rotation of the handle shaft is converted into sliding of the spool shaft by the oscillation mechanism inside the reel body, so that the spool coupled to the spool shaft slides in the front-rear direction and the rotation of the handle shaft is The rotation is transmitted as rotation of a pinion provided so as to surround the spool shaft, the rotation shaft cylinder portion of the pinion is coaxial with the spool shaft, and the rotor coupled to the rotation shaft cylinder portion of the pinion rotates. In spinning reel,
A housing for holding a mechanical part including the handle shaft, the oscillation mechanism, and the spool shaft in a predetermined position in the reel body is formed as one integrated part.
The spool shaft movably contacts the reel body via a rear bushing;
The rotating shaft cylinder portion is rotatably contacted with the spool shaft through a front bushing,
A predetermined gap is maintained between the outer periphery of the spool shaft and the inner periphery of the rotating shaft cylinder portion by the rear bushing and the front bushing,
The front bushing is inserted into the gap after passing the rotating shaft cylinder through the spool shaft,
The spinning reel, wherein at least one of the rear bushing and the front bushing is made of resin.   The spinning reel according to claim 1, wherein the resin material is at least one of polyacetal, polyamide, PPS polyphenylene sulfite, and polyether ether ketone.