JP4504900B2 - Fishing spinning reel - Google Patents

Description

  The present invention relates to a fishing spinning reel that winds a fishing line around a spool via a fishing line guide provided on a rotor that rotates in conjunction with a rotation operation of a handle.

Generally, a fishing spinning reel includes a rotor that rotates in conjunction with a rotation operation of a handle provided on a reel body, and a spool that is provided at the front of a spool shaft that moves back and forth. The fishing line can be wound around the spool.
In such fishing spinning reels, a rotor that rotates at a high speed in conjunction with the rotating operation of the handle is fitted to the outer periphery of a rotating shaft cylinder that forms part of the winding drive mechanism, and is fitted with a nut. There is one in which a spool shaft, which is fixed and a spool is attached to the front portion, is inserted into the rotating shaft cylinder (see, for example, Patent Document 1).

Also, in order to reduce the rotation between the rotating shaft cylinder and the spool shaft during the winding operation and the generation of frictional resistance in the axial direction and to enable a smooth winding operation, they are arranged before and after the rotating shaft cylinder. 2. Description of the Related Art A fishing spinning reel has been developed in which a spool shaft is supported by a bearing and an inner peripheral surface of a rotating shaft cylinder and an outer peripheral surface of a spool shaft are separated in a non-contact state (see, for example, Patent Document 2).
Utility Model Registration No. 2531613 JP 2001-190193 A

  However, as described in Patent Document 1, a fishing spinning reel in which a conventional rotor is fixed to the outer periphery of a rotating shaft cylinder and fixed with a nut has a cross section of the rotating shaft cylinder that rotates in conjunction with a handle. Since the non-circular outer periphery formed in the non-circular shape has a structure in which the non-circular inner peripheral portion in which the cross section of the rotor is formed in the non-circular shape is fitted around the non-circular shape, the nut is tightened and fixed, Even if you try to balance the entire rotor unit that is composed of a swing support member and a reversing mechanism that are integrally mounted on the rotor, when you install the rotor, the concentricity of the rotor with respect to the rotating cylinder is highly accurate. It is difficult to get in. For this reason, a suitable rotation balance (dynamic balance) of the rotor cannot be obtained, and it is difficult to obtain a smooth rotation operation.

  Further, the fishing spinning reel having a structure in which the spool shaft is supported via the bearing as described in Patent Document 2 further has a concentricity with the axis of the spool shaft that moves back and forth in the rotating shaft cylinder. Since it cannot be maintained with high accuracy, problems such as generation of abnormal noise and accelerated wear occur.

  The present invention has been made based on such circumstances, and an object of the present invention is to provide a fishing spinning reel capable of ensuring a highly accurate concentricity between a rotating shaft cylinder and a rotor.

In order to achieve the above object, according to the present invention, the rear end of a spool shaft having a spool attached to the front end of a sliding body of a spool reciprocating device that moves back and forth in synchronization with the rotational operation of the handle shaft mounted on the reel body. Are connected to the outer peripheral support portion of the rotary shaft cylinder formed with a pinion that meshes with the drive gear on the handle shaft, and the rotor inner peripheral support portion having the fishing line guide portion is attached and fixed. This fishing reel is a spinning reel for fishing that supports the outer periphery of the spool shaft inserted into the rotary shaft cylinder by a bearing provided on one side in the axial direction of the nut while being secured by a nut screwed to the end. And a drive coupling portion that is non-rotatably fitted to the outer peripheral support portion of the rotating shaft cylinder and the inner peripheral support portion of the rotor via a noncircular cross-sectional outer peripheral surface and an inner peripheral surface, and an outer peripheral surface. And the inner peripheral surface And a spinning reel for fishing provided with a concentric coupling portion concentrically fitted to an inner peripheral surface and an outer peripheral surface of a concentric circular cross-sectional shape formed on the other axial side of the nut. .

Into an inner supporting portion of the periphery supporting member and the rotor of the rotating barrel, and a drive coupling portion for locking engagement around and through the outer circumferential surface and the inner circumferential surface of the non-circular cross-sectional shape with each other, the inner and outer peripheral surface with each other And a concentric circular cross-sectional inner peripheral surface formed on the other side in the axial direction of the nut and a concentric coupling portion concentrically fitted to the outer peripheral surface. And the bearing that supports the spool shaft is supported by the rotating shaft cylinder and the nut that rotates integrally with the rotor, thereby improving the concentricity of the bearing, stabilizing the spool shaft support state, and preventing the generation of abnormal noise. Thus, a smooth driving operation can be performed.

1 and 2 show a fishing spinning reel 10 according to a preferred embodiment of the present invention.
The fishing spinning reel 10 of this embodiment has a reel body 12 having a lid (not shown) removably fixed to one side of a rigid reel body 12a, and extends upward from the reel body 12a. It attaches to a fishing rod via the rod attachment part 12c formed in the edge part of the leg part 12b to do. The reel body 12a is formed with an internal space A that is open on one side, and a winding drive mechanism for rotating the rotor 14 and winding the fishing line around the spool 16 in the internal space A. 18 and a spool reciprocating device 20 for reciprocating the spool 16 back and forth. The internal space A containing such various mechanisms has its opening closed with a lid and blocked from the outside.

The winding drive mechanism 18 of the present embodiment includes a drive gear 26 that is rotatably supported in the reel body 12 and is fixed to a handle shaft 24 that is rotated by a handle 22, and a pinion gear 28 that meshes with the drive gear 26. Is provided. The handle shaft 24 is rotatably supported with respect to the reel body 12 by two bearings supported by the reel body 12a and the lid. The pinion gear 28 driven by the handle shaft 24 and the drive gear 26 extends in the front-rear direction orthogonal to the handle shaft 24 and is rotatably supported by the reel body 12 via the front and rear bearings 30a and 30b. The rotary shaft cylinder 28a is provided on the outer peripheral portion on the rear end side. The rotor 14 provided with the bail 32 and the fishing line guide 34 is integrally attached to the tip of the rotating shaft cylinder 28a.

  A spool shaft 36 passes through the pinion gear 28 and the rotating shaft cylinder 28 a and extends in a direction perpendicular to the handle shaft 24. The spool shaft 36 is arranged concentrically with the rotating shaft cylinder 28 a, and is supported by a bearing 30 a that supports the rotating shaft cylinder 28 a at the rear, and is orthogonal to the handle shaft 24 with respect to the rotating shaft cylinder 28 a and the reel body 12. It can move back and forth along the direction. A spool 16 around which a fishing line is wound is attached to the tip of the spool shaft 36.

  In the present embodiment, the spool reciprocating device 20 that reciprocates the spool 16 in the front-rear direction is formed as a so-called reduction gear type. The spool reciprocating device 20 has a large gear 40 that meshes with and interlocks with a small gear 38 that rotates integrally with the handle shaft 24, and is protruded from the large gear 40 and is eccentric from the rotation center axis of the large gear 40. When the engaging protrusion 42 located is engaged with the cam groove 46 of the sliding body 44 integrally connected to the rear end portion of the spool shaft 36 with a screw or the like, the sliding body 44 is rotated when the large gear 40 is rotated. Can be driven in the front-rear direction along the guide 48.

The fishing spinning reel 10 formed in this way rotates the handle 22 to rotate the handle shaft 24, and then rotates the spool 16 via the spool shaft 36 attached to the sliding body 46 of the spool reciprocating device 20. Reciprocates back and forth, while the rotor 14 is rotationally driven via the drive gear 26, the pinion gear 28, and the rotary shaft cylinder 28a of the winding drive mechanism 18. Accordingly, the fishing line is wound almost uniformly on the spool 16 while being guided by the fishing line guide 34 on the spool 16.

  Further, a reverse rotation prevention mechanism 50 for switching the rotation state of the rotor 14 between a reverse rotation prevention state and a forward / reverse rotation possible state is disposed in the cylinder portion of the rotor 14, and the entirety is formed as a rotor unit. The reverse rotation prevention mechanism 50 of the present embodiment is formed by a known one-way clutch, and an inner ring member 52a that is non-rotatably mounted on a rotation shaft cylinder 28a that is integral with the pinion gear 28, and a plurality of rollers on the inner ring member. 54 and an outer ring member 52b that is supported by the reel body 12a and is non-rotatably attached to the reel body 12a. These rollers 54 are held by a retainer 56 and are moved between a free rotation region that can freely rotate and a restriction region that can rotate only in one direction between the inner ring member 52a and the outer ring member 52b. When the roller 54 is disposed in the free rotation region, the roller 54 can freely rotate, so that the rotor 14 connected to the inner ring member 52a can freely rotate with respect to the reel body 12 to which the outer ring member 52b is connected. In the state where the roller 54 is disposed in the restriction region, the roller 54 can rotate only in the direction in which the rotor 14 rotates normally, and the rotation in the direction in which the rotor 14 rotates in the reverse direction is prevented. Therefore, when the roller 54 is disposed in the restriction region, the rotor 14 is in the reverse rotation prevention state, and when it is disposed in the free rotation region, the rotor 14 is in the forward / reverse rotation enabled state.

  In the present embodiment, the inner ring member 52a of the one-way clutch forming the reverse rotation preventing mechanism 50 is positioned on the rear end side by the front bearing 30b, and the front end side is formed on the boss portion 14a of the cylindrical structure of the rotor 14. Positioning is performed by the nut 58 through the portion 15. The nut 58 is screwed through a threaded portion 58a that is threadedly engaged with the end portion of the rotary shaft cylinder 28a, and between the one side in the axial direction that is the tip side of the threaded portion 58a and the spool shaft 36. The bearing 60 is inserted. The bearing 60, together with the bearing 30a that supports the rotating shaft cylinder 28a at the rear, forms a slight gap d between the inner peripheral surface of the rotating shaft cylinder 28a and the outer peripheral surface of the spool shaft 36. The shaft 36 is supported. Reference numeral 61 denotes a collar formed of a material (polyacetal resin or the like) having good sliding property that reduces the frictional force interposed between the bearing 60 and the spool shaft 36, and has a function of preventing entry of foreign matter. .

In order to move the roller 54 of the reverse rotation prevention mechanism 50 between the free rotation region and the restriction region, and to switch the rotation state of the rotor 14 between the forward / reverse rotation enabled state and the reverse rotation prevention state, the operating rod 62 is provided on the reel body 12a. It extends along the front-rear direction in the internal space A. The operation rod 62 is bent in a crank shape at a substantially intermediate portion, and a front end portion is connected to a retainer 56 of the reverse rotation prevention mechanism 50 and penetrates the rear wall of the reel body 12 and protrudes to the outside. A switching lever 64 which is a switching operation unit is attached to the unit. Further, a positioning portion 66 is formed in a part of the operating rod 62 to hold the rotational position of the operating rod 62, and this positioning portion is a plate-like elastic body whose one end is held by the reel body. The leaf spring 68 is in pressure contact.

The operation rod 62 can rotate the retainer 56 by operating the switching lever 64 attached to the rear end portion and swinging the front end portion. The rotation position of the operating rod 62 is held by pressing the positioning portion 66 formed in the intermediate portion against the leaf spring 68 disposed in the internal space A. As a result, the reverse rotation prevention mechanism 50 is switched between a state in which the rotor 14 can be rotated forward and backward and a state in which the rotor 14 can rotate forward and cannot rotate backward. Regardless of the state of the rotor 14 , when the handle 22 is rotated in the forward rotation direction (rotation in the direction in which the fishing line is wound around the spool 16 ), the bail 32 is located at the fishing line discharge position via a known return mechanism (not shown). Can return to the fishing line winding position shown in FIG.

  As shown in detail in FIGS. 2A to 2C, the boss portion 14 a of the rotor 14 has an inner peripheral portion formed as an inner peripheral support portion 15, and an outer peripheral support portion 29 on the distal end side of the rotating shaft cylinder 28 a. Supports the outer periphery formed as The inner peripheral support portion 15 formed on the boss portion 14a of the rotor 14 and the outer peripheral support portion 29 formed on the distal end side of the rotary shaft cylinder 28a prevent the rotor 14 and the rotary shaft cylinder 28a from rotating together. A drive coupling portion 70 that transmits to the rotor 14 a rotational driving force that is fitted and acts on the pinion 28 and a concentric coupling portion 72 that are fitted concentrically with each other are provided along the axial direction.

  In the present embodiment, as shown in FIG. 2B, the drive coupling portion 70 has a non-circular cross-sectional outer peripheral surface 29a formed partially on the outer peripheral support portion 29 of the rotary shaft cylinder 28a. The boss 14a is formed by being fitted to the inner peripheral surface 15a of the non-circular cross-sectional shape, which is partially formed with a flat surface similar to the outer peripheral support portion 29, on the inner peripheral support portion 15 of the boss portion 14a. These non-circular cross-sectional shapes are obtained by forming a pair of substantially parallel plane portions on the outer peripheral support portion 29 and the inner peripheral support portion 15 that are formed in a cylindrical surface, that is, a circular cross-sectional shape. However, any other cross-sectional shape, such as a D-shaped cross-section or an oval shape, can be used as long as they are non-rotatingly fitted to each other.

  Further, as shown in FIG. 2C, the gap between the outer peripheral support portion 29 of the rotating shaft cylinder 28 a and the inner peripheral support portion 15 of the boss portion 14 a of the rotor 14 is larger than the screw portion 58 a of the nut 58. A cylindrical extension 59 extending rearward is inserted. The extension portion 59 has an inner peripheral surface 59a and an outer peripheral surface 59b formed in a concentric circular cross-sectional shape, and the inner peripheral surface 59a and the outer peripheral surface 59b support the outer periphery of the rotary shaft cylinder 28a. The outer peripheral surface 29b formed by the cylindrical surface of the portion 29 and the inner peripheral surface 15b formed by the cylindrical surface of the inner peripheral support portion 15 of the boss portion 14a are fitted, and the inner peripheral side and the outer peripheral side of the nut 58 Thus, the outer peripheral support part 29 of the rotating shaft cylinder 28a and the inner peripheral support part 15 of the boss part 14a of the rotor 14 are concentrically formed by closely fitting the respective cylindrical surfaces or circular cross-sectional surfaces. A concentric coupling portion 72 is formed to be fitted to.

  As described above, the drive coupling is configured such that the outer peripheral support portion 29 of the rotating shaft cylinder 28a and the inner peripheral support portion 15 of the rotor 14 are non-rotatably fitted to each other via the outer peripheral surface 29a and the inner peripheral surface 15a. The inner peripheral surface 59a and the outer peripheral surface having a concentric and circular cross-sectional shape of the extension portion 59 formed on the rear side in the axial direction of the nut 58 via the portion 70 and the cylindrical outer peripheral surface 29b and the inner peripheral surface 15b. By providing a concentric coupling portion 72 that fits concentrically with 59b, the bearing 60 that supports the spool shaft 36 is supported by the rotary shaft cylinder 28a and the nut 58 that rotates integrally with the rotor 14, and this bearing 28a. The concentricity is improved, the support state of the spool shaft 36 is stabilized, the generation of abnormal noise is prevented, and a smooth driving operation can be performed.

  In particular, since the concentric coupling portion 72 is provided closer to the bearing 60 than the drive coupling portion 70, the concentricity with respect to the bearing 60 and the spool shaft 36 can be maintained with high accuracy. Further, on the outer peripheral surface of the outer peripheral support portion 29 of the rotating shaft cylinder 28a, a non-circular cross-sectional outer peripheral surface 29a formed of a flat surface and a circular cross-sectional outer peripheral surface 29b formed of a cylindrical surface along the circumferential direction. By forming them alternately, high-precision and inexpensive processing can be ensured.

  In addition, if the outer periphery support part 29 of the rotating shaft cylinder 28a and the inner periphery support part 15 of the boss | hub part 14a carry out detent fitting reliably, the noncircular outer peripheral surface 29a of the outer periphery support part 29 will occupy. In order to maintain the concentricity between the rotor 14 and the rotary shaft cylinder 28a with high accuracy, it is preferable to reduce the area as much as possible and to increase the area occupied by the outer peripheral surface 29b having a circular cross-sectional shape forming the cylindrical surface.

FIG. 3 shows a reference example . In addition, since it is the same as that of the various reference examples shown below, the same code | symbol is attached | subjected to the same site | part and the detailed description is abbreviate | omitted.
In this reference example , the extension portion 59 of the nut 58 in the above-described embodiment is omitted, and the concentric coupling portion 72 is an inner periphery having a circular cross-sectional shape formed on the inner periphery support portion 15 of the boss portion 14a of the rotor 14. The surface 15b is formed by concentrically fitting an outer peripheral surface 29b having a circular cross-sectional shape formed on the outer peripheral support portion 29 of the rotating shaft cylinder 28a. In this embodiment, the outer peripheral surface 29 a having a non-circular cross-sectional shape and the outer peripheral surface 29 b having a circular cross-sectional shape are formed along the axial direction, and the outer peripheral surface 29 b having a small-diameter circular cross-sectional shape is stepped on the outer peripheral support portion 29. Forming part.

Also in this reference example , the rotor unit formed by incorporating the reverse rotation preventing device 50 (FIG. 1) or the like in the rotor 14 has a highly accurate concentricity with the rotary shaft 28a that rotates in conjunction with the handle 22 (FIG. 1). Thus, a good rotation balance or dynamic balance of the rotor 14 can be obtained, and a smooth winding rotation operation can be performed.

  In particular, the boss portion 14a of the rotor 14 directly fits the inner peripheral surface 15b having the circular cross-sectional shape of the inner peripheral support portion 15 with the outer peripheral surface 29b having the circular cross-sectional shape formed on the outer peripheral support portion 29 of the rotating shaft cylinder 28a. Thus, the highly accurate concentricity of the rotor 14 and the rotor unit with respect to the rotating cylinder shaft 28a can be maintained.

FIG. 4 shows still another reference example . In the fishing spinning reel of this reference example, the bearing 60 and the collar 61 that support the spool shaft 36 are omitted. The nut 58 is screwed into the distal end portion of the rotating cylinder shaft 28 a protruding from the boss portion 14 a of the rotor 14. In this reference example, similarly to the reference example shown in shown in FIG. 3 (B) and (C), is integrated in a state in which the rotor unit is highly accurate concentricity is achieved the rotation shaft tube 28a, a good rotor 14 Rotational balance or dynamic balance can be obtained, and a smooth winding rotation operation can be performed.

  Although various embodiments of the present invention have been individually described above, the present invention is not limited to any one embodiment and can be variously modified, and the embodiments can be appropriately combined. Is also possible.

1 is a partial sectional view of a fishing spinning reel according to a preferred embodiment of the present invention. 1 shows a connecting portion between a rotating shaft cylinder and a rotor of the spinning reel for fishing shown in FIG. 1, (A) is an enlarged view of a part of FIG. 1, and (B) is a sectional view taken along line BB of (A). (C) is sectional drawing which follows the CC line of (A). Sectional drawing similar to FIG. 2 of the spinning reel for fishing by a reference example . Cross-sectional view similar to other reference example by spinning reel for fishing in Fig. 2 (A).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Fishing spinning reel, 12 ... Reel main body, 14 ... Rotor, 15 ... Inner peripheral support part, 15a, 15b ... Inner peripheral surface, 16 ... Spool, 20 ... Spool reciprocating device, 24 ... Handle shaft, 26 ... Drive gear, 28 ... pinion, 28a ... rotating shaft cylinder, 29 ... outer peripheral support, 29a, 29b ... inner peripheral surface, 44 ... sliding body, 70 ... drive coupling part, 72 ... concentric coupling part.

Claims (1)

The rear end of the spool shaft with the spool attached to the tip of the spool reciprocating device that moves back and forth in synchronization with the rotational operation of the handle shaft mounted on the reel unit is connected to the drive gear on the handle shaft. An inner peripheral support portion of a rotor having a fishing line guide portion is attached and fixed to an outer peripheral support portion of a rotating shaft cylinder formed with an intermeshing pinion, and this rotor is fixed by a nut that is screwed to an end portion of the rotating shaft cylinder. A fishing spinning spinning reel that supports the outer periphery of the spool shaft inserted into the rotating shaft cylinder by a bearing provided on one axial side of the nut,
A drive coupling portion that is fixed to the outer peripheral support portion of the rotary shaft cylinder and the inner peripheral support portion of the rotor via a noncircular cross-sectional outer peripheral surface and an inner peripheral surface, and a mutually connected outer peripheral surface and an inner A concentric coupling portion that is concentrically fitted to the inner peripheral surface and the outer peripheral surface of the concentric circular cross-sectional shape formed on the other side in the axial direction of the nut is provided via the peripheral surface. Spinning reel for fishing.

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