JP5041605B2 - 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.

  In general, a spinning reel for fishing is fixed with a nut by rotating and rotating a rotor that rotates in conjunction with a rotation operation of a handle to the outer periphery of a rotating shaft cylinder that constitutes a part of a power transmission mechanism. However, there is a problem that the concentricity of the rotor with respect to the rotating shaft cylinder is difficult to appear. That is, since the rotary shaft cylinder and the rotor are coupled by a non-circular cross-sectional fitting relationship, the concentricity of both is difficult to occur due to problems such as processing accuracy, and a suitable rotor rotation balance cannot be obtained and smooth. There is a problem that the rotation operation cannot be realized.

  Therefore, in order to ensure a high degree of concentricity between the rotating shaft cylinder and the rotor, a drive coupling portion (in which the rotation shaft cylinder and the inner peripheral support portion of the rotating shaft cylinder are fitted to each other to prevent rotation) Patent Document 1 proposes that a non-rotating fitting relationship) and a concentric coupling portion (rotating fitting relationship) that fits concentrically with each other are formed side by side along the axial direction. Has been.

JP 2007-116971 A

  However, in the above-described known technology, the inner periphery of the rotor cylindrical portion is fitted to the outer periphery of a rotating shaft cylinder (pinion) in which the drive coupling portion and the concentric coupling portion are arranged in parallel along the axial direction. Therefore, the rotor support portion for the rotating shaft cylinder is enlarged in the axial direction, and the rotating shaft cylinder is also enlarged in the radial direction.

  In addition, the inner ring of the one-way clutch that constitutes the reverse rotation prevention mechanism is fitted to the outer periphery of the rotary shaft cylinder (pinion) so that the concentricity between the rotor and the inner ring is likely to be misaligned. In addition, there is a problem that the wedge action of the one-way clutch clutch is not stable and the stopper is not reliable.

  The present invention has been made paying attention to the above-described problem, and is a spinning spinning for fishing that can ensure the concentricity of the rotor and the rotating shaft cylinder without increasing the area of the rotor supporting portion of the rotating shaft cylinder. The purpose is to provide reels.

  In order to achieve the above-described object, according to the present invention, a rotating shaft cylinder having a pinion that meshes with a drive gear is fitted and fixed to a rotor supporting portion having a fishing line guide portion, and the inside of the rotating shaft cylinder is fixed. In a fishing spinning reel in which a spool shaft having a spool at the front is inserted so as to be movable back and forth, an outer peripheral portion of a support portion that is formed on the rotor and is non-rotatably fitted to the rotating shaft cylinder, A restriction support tube is provided to be fitted to each of the outer peripheral portions of the rotary shaft tube, and the restriction support tube is fitted and supported to a circular outer peripheral portion formed on the outer peripheral portion of the support portion. It has a peripheral support part and a 2nd circular inner peripheral support part fitted and supported with respect to the circular outer peripheral part formed in the outer peripheral part of the said rotating shaft cylinder.

  According to the fishing spinning reel having the above-described configuration, the provision of the restriction support cylinder makes it possible to fit and fix the rotor and the rotary shaft cylinder while ensuring concentricity. That is, since the second circular inner peripheral support portion provided on the restriction support tube is fitted and supported with respect to the circular outer periphery formed on the outer peripheral portion of the rotation shaft tube, the restriction support tube and the rotation shaft tube It is possible to ensure concentricity between the two. In addition, since the first circular inner peripheral support portion provided on the restriction support cylinder is fitted and supported to the circular outer peripheral portion formed on the outer peripheral portion of the support portion of the rotor, the restriction support cylinder and the rotor It is possible to ensure a concentricity between the two.

  Therefore, due to the fitting relationship of the restriction support cylinder described above, the rotor and the rotary shaft cylinder can be fitted and fixed while securing the concentricity, and the rotor support portion with respect to the rotary shaft cylinder can be fixed in the axial direction. The increase in size is suppressed, and the rotating shaft cylinder can be reduced in the radial direction.

  According to the present invention, a fishing spinning reel in which the concentricity between the rotor and the rotary shaft cylinder is ensured can be obtained without increasing the area of the rotor support portion of the rotary shaft cylinder.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows 1st Embodiment of the spinning reel for fishing which concerns on this invention, and the figure which showed the internal structure. The enlarged view of the principal part shown in FIG. Sectional drawing along the AA line of FIG. Sectional drawing along the BB line of FIG. Sectional drawing along CC line of FIG. It is a figure which shows 2nd Embodiment of the spinning reel for fishing which concerns on this invention, and is the figure which expanded the principal part. The figure which shows the modification of embodiment shown in FIG.

Hereinafter, embodiments of a spinning reel for fishing according to the present invention will be described with reference to the drawings.
1 and 2 are views showing a first embodiment of the present invention. FIG. 1 is a view showing an internal configuration, and FIG. 2 is an enlarged view of a main part shown in FIG.

  The reel body 1 of the spinning reel for fishing according to the present embodiment is provided with a rotor 3 having a fishing line guide portion 3a and driven to rotate, and a spool 4 that is moved back and forth in synchronization with the rotational drive of the rotor 3. Yes.

  A handle shaft 5 is rotatably supported in the reel body 1 via a bearing, and a handle 5A that is wound up is attached to an end of the handle shaft 5. The handle shaft 5 is engaged with a power transmission mechanism 6 that transmits a rotation operation of the handle 5 </ b> A to the rotor 3 and also to the spool 4.

  The power transmission mechanism 6 extends in a direction orthogonal to the handle shaft 5 and a drive gear (drive gear) 7 that is mounted on the handle shaft 5 so as to be integrally rotatable, and is rotatable via bearings 8a and 8b. And a supported rotating shaft cylinder 9. In this case, a pinion 9 a that meshes with the drive gear 7 is formed on the base end side of the rotary shaft cylinder 9. A male screw portion 9 b is formed at the tip of the rotary shaft tube 9, and the rotor 3 is attached to the rotary shaft tube 9 by screwing a rotor nut 10 into this portion.

  The rotating shaft cylinder 9 penetrates along the axial direction, and a spool shaft 4a holding the spool 4 around which a fishing line is wound is inserted into the rotating shaft cylinder 9. A known oscillating mechanism 12 is connected to the base end side of the spool shaft 4a, and when the handle shaft 5 is rotated by a rotation operation of the handle 5A, the spool shaft 4a reciprocates back and forth along the axial direction. Driven.

  A bearing 14 is interposed between the spool shaft 4 a and the rotor nut 10, and the rotor nut 10 that fixes the rotor 3 to the rotating shaft cylinder 9 is rotatably supported. A slight gap is formed between the bearing 14 and the spool shaft 4a between the inner periphery of the rotary shaft cylinder 9 and the outer periphery of the spool shaft 4a so that the spool shaft 4a can smoothly reciprocate back and forth. A collar 15 is disposed on the surface.

  Further, a reverse rotation prevention mechanism 20 for preventing the rotor 3 from rotating backward is provided in the reel body 1. The reverse rotation prevention mechanism 20 of this embodiment is configured by a rolling one-way clutch. Specifically, an outer ring 21 that is fixed to the reel body 1 is provided, and a cage 23 that is disposed inside the outer ring 21 and holds a plurality of rolling members 22. On the inner side of the outer ring 21, a free rotation area where each rolling member 22 can be freely rotated and a wedge area which prevents the rotation of each rolling member 22 are formed, and a lever 25 protruding outside the reel body 1. Is switched so as to rotate the retainer 23 via the engaging portion 25b of the operation member 25a extending in the reel body, and the rolling member 22 is switched and held between the free rotation region and the wedge region. It has become.

  An inner ring (a regulation support cylinder 30 having a centering function as will be described later) is installed inside the rolling member 22 so as to be integrally rotatable with respect to the rotary shaft cylinder 9, and the lever 25 is switched and operated. Then, by rotating the cage 23, the rotary shaft cylinder 9 (that is, the rotor 3) is configured to be switched between a forward / reverse rotation enabled state and a reverse rotation prevented state.

  With the above-described configuration, when the handle 5A is rotated, the spool 4 reciprocates back and forth via the oscillating mechanism 12, and the rotor 3 is rotationally driven via the drive gear 7 and the rotary shaft cylinder (pinion 9a). Therefore, the fishing line is evenly wound around the spool 4 via the fishing line guide portion 3 a of the rotor 3.

  Next, how the rotor 3 is attached to the rotating shaft cylinder 9 will be described with reference to FIGS. In these drawings, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, FIG. 4 is a cross-sectional view taken along line BB in FIG. 2, and FIG. It is sectional drawing along CC line.

  A support portion 3b that protrudes in the axial direction at the center portion of the rotor 3 so as to be non-rotatably fitted to the rotating shaft cylinder 9 (projects backward with respect to the inner wall 3c of the rotor 3). Is formed. As shown in FIG. 3, the support portion 3 b is inserted through the rotary shaft cylinder 9, and the inner peripheral portion 3 d is formed in a non-circular cross section, and the outer peripheral portion 9 c of the rotary shaft tube 9 is non-circular in cross section. It is comprised so that a rotation stop may be fitted between.

  Further, the outer peripheral portion 3e of the protruding region of the support portion 3b is formed in a circular cross section (constitutes a circular outer peripheral portion), and the front end side of the regulation support cylinder 30 is fitted. Here, the restriction support cylinder 30 is configured as a color-shaped member along the rotary shaft cylinder 9 and is a member having a function of ensuring the concentricity of the rotor 3 with respect to the rotary shaft cylinder 9. The regulation support cylinder in the present embodiment also has a function as an inner ring with which the rolling member 22 of the rolling type one-way clutch (reverse rotation preventing mechanism) 20 is in sliding contact.

  The restriction support cylinder 30 includes a first circular inner peripheral support portion 30a fitted and supported to an outer peripheral portion (circular outer peripheral portion) 3e of a region where the support portion 3b of the rotor protrudes. A second circular inner peripheral support portion 30b that is fitted and supported to a circular outer peripheral portion 9d formed on the outer peripheral portion is formed.

  Further, on the inner surface side of the regulation support cylinder 30, a non-circular inner periphery support portion 30 c that is prevented from being fitted to the rotary shaft cylinder 9 is formed. In this case, the non-circular inner peripheral support portion 30c is formed between the first circular inner peripheral support portion 30a and the second circular inner peripheral support portion 30b, thereby rotating as shown in FIG. The non-circular outer peripheral portion 9c of the shaft tube 9 can be extended to the rear side in the axial direction as it is, and the non-circular inner peripheral support portion 30c can be non-rotatably fitted.

  According to the fishing spinning reel having the above-described configuration, the second circular inner peripheral support portion 30b provided on the restriction support tube 30 is fitted to the circular outer peripheral portion 9d formed on the outer peripheral portion of the rotary shaft tube 9. Since they are supported together, concentricity is ensured between the regulation support cylinder 30 and the rotary shaft cylinder 9. Further, since the first circular inner peripheral support portion 30a provided on the restriction support cylinder 30 is fitted and supported to the circular outer peripheral portion 3e formed on the outer peripheral portion of the support portion 3b of the rotor 3, the restriction support is provided. A concentricity between the cylinder 30 and the rotor 3 is ensured.

  Therefore, although the rotor 3 is non-rotatably fitted to the rotating shaft cylinder 9 by the inner peripheral portion 3d having a non-circular cross section, the rotor 3 and the rotating shaft cylinder 9 are arranged due to the fitting relationship of the restriction support cylinder 30 described above. Means that the concentricity can be secured and fixed. As a result, the rotor support portion 3b for the rotating shaft cylinder 9 is prevented from being enlarged in the axial direction, and the rotating shaft cylinder 9 can be reduced in the radial direction.

  Furthermore, in this embodiment, since the regulation support cylinder 30 has a function as an inner ring of the rolling one-way clutch 20, there is no deviation of the concentricity between the rotor 3 and the inner ring, and the one-way clutch As a result, the wedge action is stabilized, and the reverse rotation prevention function can be improved.

  The regulation support cylinder 30 described above may be configured as a member having a centering function without having a function as an inner ring of the rolling one-way clutch 20. For example, as in the second embodiment shown in FIG. 6, the reverse rotation prevention mechanism 50 incorporated in the reel body 1 switches between the ratchet 3 </ b> A integrally formed on the inner wall portion of the rotor 3 and the lever 25 (see FIG. 1). By operating, it is possible to configure as a ratchet type stopper provided with a stopper 51 locked to the ratchet 3A via an engaging portion 25b of an operation member 25a extending into the reel body.

  In such a configuration, the regulation support cylinder 30A includes a first circular inner peripheral support part 30a fitted and supported to a circular outer peripheral part 3e formed on the outer peripheral part of the support part 3b of the rotor 3, and a rotary shaft cylinder. And the second circular inner peripheral support portion 30b fitted and supported to the circular outer peripheral portion 9d formed on the outer peripheral portion of the rotor 9, so that the rotor 3 and the rotary shaft cylinder 9 are regulated and supported. It becomes possible to secure the concentricity and fit and fix via the cylinder 30A.

  The reverse rotation preventing mechanism 50 configured as a ratchet type stopper shown in FIG. 6 may have a structure in which the ratchet 53 is fitted to the rotating shaft cylinder 9 in a non-rotating manner as shown in FIG.

  As described above, the fishing spinning reel according to the present invention ensures the concentricity of the rotor with respect to the rotating shaft cylinder by disposing the regulating support cylinder on the outer periphery of the rotating shaft cylinder on which the pinion is formed. It becomes possible.

1 reel body 3 rotor 3b support portion 3e outer peripheral portion (circular outer peripheral portion)
4 Spool 9 Rotating shaft cylinder 20 Reverse rotation prevention mechanism 30 Restriction support cylinder 30a First circular inner peripheral support part 30b Second circular inner peripheral support part

Claims (2)

A rotary shaft cylinder having a pinion that meshes with the drive gear is fitted and fixed to a rotor support section having a fishing line guide section, and a spool shaft having a spool at the front part can be moved back and forth inside the rotary shaft cylinder. In a fishing spinning reel inserted in
An outer peripheral portion of a support portion that is formed on the rotor and is non-rotatably fitted to the rotary shaft tube, and a regulation support tube that is fitted to each of the outer peripheral portions of the rotary shaft tube,
The restriction support cylinder includes a first circular inner peripheral support part fitted and supported to a circular outer peripheral part formed on the outer peripheral part of the support part, and a circular outer peripheral part formed on the outer peripheral part of the rotary shaft cylinder. A spinning reel for fishing, comprising: a second circular inner peripheral support portion that is fitted and supported with respect to. The regulation support cylinder has a function as an inner ring in which a rolling member of a rolling type one-way clutch provided between the support portion of the reel body and the rotary shaft cylinder is in sliding contact.
2. The fishing spinning reel according to claim 1, wherein the restriction support cylinder has a non-circular inner periphery support portion that is non-rotatably fitted to the rotary shaft cylinder.

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