JP5099926B2 - Fishing spinning reel - Google Patents

Description

  The present invention relates to a fishing spinning reel characterized by a rotor portion that rotates in conjunction with a rotation operation of a handle.

  Usually, a fishing spinning reel includes a rotor provided with a fishing line guide and a spool around which a fishing line is wound, and simultaneously rotates the rotor by rotating a handle and simultaneously reciprocates the spool. It has a configuration. The rotor is formed with a pair of arm portions facing each other on both sides of the rear portion of the cylindrical main body portion, and the fishing line is connected to the spool that moves back and forth via the fishing line guide portion provided on one arm portion. Is to be wound.

  In the fishing spinning reel having the above-described configuration, when the handle is actually caught and the handle is wound, a large load is applied to the fishing line, and the arm portion of the rotor is deformed radially inward during winding. Therefore, there is a possibility that the outer periphery of the spool may hit. In addition, there is a problem that when dragging out, pulsation occurs due to deformation of the arm portion and smooth fishing line cannot be fed out.

  Therefore, for example, Patent Document 1 discloses a fishing spinning in which a belt-shaped reinforcing member is bridged in a circular arc shape on the fishing line discharge position side at a predetermined distance from the outer periphery of the rotor on the distal end side of the pair of arm portions. A reel is disclosed.

Japanese Patent No. 2894422

However, in the fishing spinning reel disclosed in Patent Document 1, the reinforcing member is disposed between the tip ends of the pair of arm portions at a predetermined distance from the outer periphery of the cylindrical portion of the rotor so as to surround a part of the outer periphery of the spool. Since the structure is constructed in the shape of an arc, the weight is biased toward the front side of the rotor, and therefore it is difficult to achieve an efficient weight balance. Further, since the reinforcing member is arranged on the outer peripheral side of the spool for winding the fishing line, the fishing line is easily entangled with the reinforcing member, and the reinforcing member is in the way and it is difficult to lock the fishing line to the line holder.
Further, in the fishing spinning reel disclosed in Patent Document 1, the arm portion has a thick-walled base portion due to the reinforcing member being erected on the distal end side. Becomes heavy, and fishing operability is inferior.
Further, it is desirable that the reinforcing member can be efficiently reduced in weight while sufficiently considering stress distribution and rigidity so as not to hinder the reduction in size and weight of the reel.

  The present invention has been made paying attention to the above circumstances, and the purpose thereof is to sufficiently reinforce the arm portion by the reinforcing member without hindering the fishing line operation, and to efficiently reduce the weight of the reinforcing member. An object of the present invention is to provide a fishing spinning reel with an excellent weight balance that can reduce the weight of the rotor as much as possible.

  In order to solve the above-described problem, the invention described in claim 1 includes a reel body, a rotor rotatably provided on the reel body, and a spool around which a fishing line is wound, and the rotor includes a body portion. And a pair of arm portions formed opposite to both sides of the main body portion, and a support member that is attached to the tip portion of each arm portion and supports the bale, and one of the support members includes the spool In a fishing spinning reel in which a fishing line guide for guiding a wound fishing line is provided, and the fishing line is wound on a spool via the fishing line guide by rotation of the rotor, a side portion of one arm portion; The reinforcing member is connected to a side portion of the other arm portion, and the reinforcing member is separated from the arm portion as it moves to the base side of the arm portion, and is convex toward the reel body side. The pair of arms A cross section having the smallest area among the cross sections that are bridged between the sections and cut the reinforcing member at an arbitrary angle at the portion of the reinforcing member farthest from the fishing line guide portion along the axial direction of the rotor, If the centroid of the cross section A is G, the plane including the cross section A is P, and the perpendicular foot extending from the center point of the fishing line guide portion to the plane P is K, the linear axis passing through this point K and the centroid G The cross-sectional secondary moment I (m) of the cross-section A with respect to m and the cross-sectional secondary moment I (n) of the cross-section A with respect to the linear axis n in the plane P passing through the centroid G and perpendicular to the linear axis m. In the meantime, the relationship of I (m) <I (n) is established.

  According to the first aspect of the present invention, the reinforcing member is bridged between the side portion of the one arm portion and the side portion of the other arm portion. Even when a load is applied, stress can be distributed by the reinforcing member, and the arm portion can be effectively reinforced and prevented from being deformed. In addition, the reinforcing member is bridged so as to protrude away from the arm portion as it moves to the base side of the arm portion, and becomes convex toward the reel body side, so that the base portion of the arm portion becomes thicker This makes it possible to reduce the weight of the rotor as much as possible (and therefore excel in fishing operability), and the weight is not biased toward the front side of the rotor, so that an efficient weight balance can be achieved. Can do. Further, since the reinforcing member is not disposed on the outer peripheral side of the spool, the fishing line is not entangled with the reinforcing member, and the reinforcing member does not obstruct the hooking of the fishing line to the line holder. Further, in the above configuration, by establishing the relationship of I (m) <I (n), it is possible to realize a configuration in which the direction of giving rigidity substantially coincides with the load direction. In addition to the configuration, the cross-sectional area of the reinforcing member can be efficiently reduced (efficiently reduced in weight), and the rotor can be reduced as much as possible.

  In the above configuration, the “center point of the fishing line guide portion” includes the center of gravity of the fishing line guide portion, the center in the width direction, the longitudinal direction, or the axial direction of the fishing line guide portion according to the shape of the fishing line guide portion. Moreover, in the said structure, the shape of the cross section A is arbitrary, The cross-sectional secondary moment is calculated according to the shape. In the above configuration, the “base portion of the arm portion” is a connection portion between the main body of the rotor and the arm portion, and is an end portion of the arm portion located on the reel main body side.

  The invention described in claim 2 includes a reel body, a rotor rotatably provided on the reel body, and a spool around which a fishing line is wound, and the rotor includes a body portion and both sides of the body portion. A pair of arm portions formed opposite to each other, and a support member that is attached to the tip portion of each arm portion and supports the bale, and one support member has a fishing line wound around the spool. In a fishing spinning reel provided with a fishing line guide for guiding, and the fishing line is wound around the spool via the fishing line guide by the rotation of the rotor, the side of one arm and the side of the other arm A part of the reinforcing member that is connected to the main body part of the rotor, and moves away from the arm part as it moves to the base part side of the arm part. Convex toward the side The bridge is constructed between the pair of arms, and is located on the fishing line guide part side with respect to the connection part among the parts of the reinforcement member excluding the connection part between the reinforcement member and the main body part of the rotor. In addition, the cross section having the smallest area among the cross sections obtained by cutting the reinforcing member at an arbitrary angle at the portion farthest from the fishing line guide portion along the axial direction of the rotor is A, and the centroid of the cross section A is G. Assuming that the plane including A is P and the foot of the perpendicular line from the center point of the fishing line guide portion to the plane P is K, the sectional secondary moment I of the section A with respect to the linear axis m passing through this point K and the centroid G. Between (m) and the secondary moment of inertia I (n) of the cross section A with respect to the linear axis n in the plane P passing through the centroid G and perpendicular to the linear axis m, I (m) <I The relationship (n) is established.

  According to the invention described in claim 2, substantially the same effect as that of claim 1 can be obtained. In particular, in the above configuration, it is desirable that the connecting portion be positioned at the longitudinal center portion of the reinforcing member. In this case, the reinforcing member and the rotor main body portion are connected at the longitudinal center portion where the load is inherently large. Therefore, the rigidity of the portion is increased, and the shape of the non-connection side cross section of the reinforcing member excluding the connection portion is made to have a relationship of I (m) <I (n), thereby providing rigidity. Therefore, the reinforcing member can be made in a form in which stress concentration is difficult to concentrate, and the cross-sectional area of the reinforcing member can be efficiently reduced (efficiently). It is possible to reduce the weight of the rotor as much as possible.

  The invention described in claim 3 is characterized in that, in the invention described in claim 1 or 2, the linear axis n substantially coincides with the strong axis of the section A.

  According to the third aspect of the present invention, the same effect as that of the first or second aspect of the invention can be obtained, and the maximum rigidity direction of the cross section A can be made substantially coincident with the load direction. This makes it possible to reduce the weight of the rotor as much as possible. In this configuration, the strong axis is an axis that maximizes the moment of inertia in terms of structural mechanics.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the reinforcing member comprises a plurality of beam members.

  According to the invention described in claim 4, since the same effect as that of the invention described in any one of claims 1 to 3 can be obtained, and the reinforcing member is composed of a plurality of beam members. The specific rigidity can be increased while the directionality is efficiently controlled, and the rotor can be further reduced in weight as much as possible.

  The invention described in claim 5 is the invention described in claim 2, characterized in that an opening is provided in the vicinity of the connection portion in the main body of the rotor.

  According to the invention described in claim 5, the same effect as that of the invention described in claim 2 can be obtained, and an opening is formed in the vicinity of the connecting portion (the connecting portion between the reinforcing member and the rotor main body). To prevent the rigidity of the connecting portion from becoming excessively high compared to the surroundings, reduce stress concentration near the end of the connecting portion of the reinforcing member, and reduce the weight of the rotor as much as possible. It becomes possible.

  According to the present invention, the arm portion can be sufficiently reinforced by the reinforcing member without hindering the fishing line operation, and the weight of the rotor can be reduced as much as possible by efficiently reducing the weight of the reinforcing member. A fishing spinning reel can be provided.

1 is an overall configuration diagram of a fishing spinning reel according to a first embodiment of the present invention. It is a perspective view of the rotor for demonstrating the cross-sectional form of a reinforcement member structurally mechanically. FIG. 3 is a side view of the rotor as viewed from the direction in which the arm portions of the rotor of FIG. 2 face each other. FIG. 3 is a plan view of the rotor of FIG. 2 as viewed from above. It is the bottom view which looked at the rotor of FIG. 2 from the lower side. It is the front view of the rotor of FIG. 2 seen from the direction substantially perpendicular | vertical with respect to the longitudinal direction of a reinforcement member. It is sectional drawing which follows the AA line of FIG. It is a figure which shows the relationship between the cross section A of a reinforcement member, the linear axes m and n, the centroid G, and the point K. FIG. It is a perspective view of the rotor for demonstrating structurally the cross-sectional form of the reinforcement member of the spinning reel for fishing which concerns on the 2nd Embodiment of this invention. FIG. 10 is a side view of the rotor as seen from the direction in which the arm portions of the rotor of FIG. 9 face each other. It is the bottom view which looked at the rotor of FIG. 9 from the lower side. FIG. 10 is a front view of the rotor of FIG. 9 viewed from a direction substantially perpendicular to the longitudinal direction of the reinforcing member. It is sectional drawing which follows the BB line of FIG. It is a partial section perspective view of a rotor including a section of an auxiliary member in a non-connection part which defines section A. It is a figure which shows the relationship between the cross section A of a reinforcement member, the linear axes m and n, the centroid G, and the point K. FIG. It is a perspective view of the rotor for demonstrating structurally the cross-sectional form of the reinforcement member of the spinning reel for fishing which concerns on the 3rd Embodiment of this invention. FIG. 17 is a side view of the rotor as seen from the direction in which the arm portions of the rotor of FIG. 16 face each other. It is the bottom view which looked at the rotor of FIG. 16 from the lower side. FIG. 17 is a front view of the rotor of FIG. 16 viewed from a direction substantially perpendicular to the longitudinal direction of the reinforcing member. It is sectional drawing which follows the CC line of FIG. It is a figure which shows the relationship between the cross section A of a reinforcement member, the linear axes m and n, the centroid G, and the point K. FIG. It is a perspective view of the rotor for demonstrating structurally the cross-sectional form of the reinforcement member of the spinning reel for fishing which concerns on the 4th Embodiment of this invention. It is the side view of the rotor seen from the direction where the arm part of the rotor of FIG. 22 opposes. It is the bottom view which looked at the rotor of FIG. 22 from the lower side. FIG. 23 is a front view of the rotor of FIG. 22 viewed from a direction substantially perpendicular to the longitudinal direction of the reinforcing member. It is sectional drawing which follows the DD line | wire of FIG. It is a partial section perspective view of a rotor including a section of an auxiliary member in a non-connection part which defines section A. It is a figure which shows the relationship between the cross section A of a reinforcement member, the linear axes m and n, the centroid G, and the point K. FIG. It is a figure which shows the modification of the cross section. It is a figure which shows the modification of the cross section.

  Hereinafter, embodiments of a spinning reel for fishing according to the present invention will be described with reference to the drawings.

  1 to 8 show a first embodiment of the present invention. In particular, as shown in FIG. 1, the reel body 1 of the fishing spinning reel of the present embodiment includes a handle 2 that is rotated, a rotor 3 that is rotated by the rotation of the handle 2, A spool 5 is provided that is moved back and forth in synchronization with the rotational drive and on which the fishing line is wound.

  In the reel body 1, a handle shaft 2a on which a handle 2 is mounted is rotatably supported via a bearing. The handle shaft 2a transmits a rotation operation of the handle 2 to the rotor 3 and also has a spool. 5 is engaged.

  The power transmission mechanism 6 includes a drive gear (drive gear) 7 that is mounted on the handle shaft 2a so as to be integrally rotatable, and a rotary shaft cylinder 8 that extends in a direction orthogonal to the handle shaft 2a. A pinion 8 a that meshes with the drive gear 7 is formed on the base end side of the rotary shaft cylinder 8, and a rotor nut is screwed to the tip portion so that the rotor 3 is connected to the rotary shaft cylinder 8. Attached.

  Further, a spool shaft 5 a holding a spool 5 around which a fishing line is wound is inserted into the rotary shaft cylinder 8 at the front. A known oscillating mechanism is connected to the spool shaft 5a, and when the handle shaft 2a is rotated by a rotation operation of the handle 2, the spool shaft 5a is driven back and forth in the axial direction.

  According to the above configuration, by rotating the handle 2, the rotor 3 is rotationally driven via the drive gear 7 and the pinion 8a (rotary shaft cylinder 8) meshed therewith, and the spool 5 is oscillating. It is driven back and forth through the mechanism. In this case, as will be described in detail below, the rotor 3 is provided with a fishing line guide, and the fishing line winding body 5b of the spool 5 is connected to the fishing line via the fishing line guide provided on the rotor 3. Is wound evenly.

  The rotor 3 includes a main body portion 3a formed in a substantially cylindrical shape, and a pair of arm portions 3b are formed on both sides thereof at an interval of about 180 °. As shown in FIG. 2, each arm portion 3b is integrally formed with the main body portion 3a together with a connecting portion 3b 'protruding radially outward from the rear portion (reel main body 1 side) of the main body portion 3a. It is extended. As a result, a gap is formed between the main body portion 3a and each arm portion 3b, and the skirt portion 5c of the spool 5 is positioned in this portion as shown in FIG.

  As is well known, a support member 3c that supports the bail 3e is supported at the tips of the pair of arm portions 3b so as to be reversible between a fishing line winding position and a fishing line discharge position about a support shaft 3c '. A fishing line guide portion (line roller) 3d for guiding the fishing line wound around the spool 5 is provided at the tip of one support member 3c. A bale 3e is provided between the support members 3c. When the support member 3c is reversed from the fishing line discharge position to the fishing line winding position, the fishing line is picked up and guided to the fishing line guide portion 3d.

  A reversal holding mechanism (not shown) is provided in one of the pair of arm portions 3b to reverse and hold the support member 3c between the fishing line winding position and the fishing line discharge position. . A reinforcing member 10 is provided on the pair of arm portions 3b.

Hereinafter, the configuration of the reinforcing member 10 of the present embodiment will be described in detail.
As shown in FIGS. 2 to 6, the reinforcing member 10 extends from the side portions of the pair of arm portions 3 b toward the rear portion (reel main body 1 side) of the main body portion 3 a of the rotor 3, and the main body portion 3 a. Not connected to. In this case, as shown in FIG. 3, the reinforcing members 10 are preferably provided on both sides of each of the pair of arm portions 3b, and the reinforcing members 10 provided on both sides preferably have substantially the same shape. The shape extends from the front portion (portion where the support member 3c is provided) on the side of the arm portion 3b toward the base portion (portion on the connecting portion 3b ′ side) and gradually separates as the base portion is moved. It has become. That is, the two arm portions 3b are formed in a substantially C-shape when viewed from the side in a direction in which the both arm portions 3b face each other, whereby the gap S between the reinforcing member 10 and the both sides of the base portion of the arm portion 3b. Is supposed to exist. Note that the gap S gradually expands in a side view.

  Further, in the present embodiment, the reinforcing member 10 has a structure that is bridged between the pair of arm portions 3b as shown in FIGS. 2, 4, 5, and 6, and is cut between the pair of arm portions 3b. It is continuously formed without being convex toward the reel body.

  In this embodiment, the reinforcing member 10 has a shape curved toward the reel body 1 between the pair of arm portions 3b, and as shown in FIG. With respect to the region 99, when the spool 5 reciprocates and moves to the reel body side, it is positioned closer to the reel body than the rear edge (line indicated by R) of the skirt portion 5c of the spool. Yes. More specifically, as shown by the line R, when the spool 5 moves to the reel main body side, a part of both sides of the rear end of the skirt 5c overlaps, and the spool 5 reciprocates. However, the back-and-forth movement state is not obstructed by the reinforcing member 10 and can be easily recognized.

  In addition, the present embodiment incorporates a special design concept that can efficiently reduce the weight of the reinforcing member 10 while increasing the rigidity by the reinforcing member 10. Specifically, as shown in FIG. 3, the center point M of the fishing line guide portion 3d (in the case where the fishing line guide portion 3d is in the form of a roller as in the present embodiment, the center of the roller in the width direction and the roller circle Of the reinforcing member 10 that is farthest from the center (axial center) of the rotor 3 in the axial direction of the rotor 3 (the distance L along the axial direction of the rotor 3 from the center M of the fishing line guide portion 3d is the largest). In the configuration in which the reinforcing member 10 is not connected to the main body portion 3a of the rotor as in the present embodiment, the projecting apex portion of the arc of the member 10, that is, the lowermost end portion in the region of the longitudinal intermediate portion 99, Among the cross sections obtained by cutting the reinforcing member 10 at an arbitrary angle at which stress is substantially maximum), the cross section having the smallest area (elliptical shape) is A, the centroid of the cross section A is G, and the plane including the cross section A P, flat from the center point M of the fishing line guide 3d If the foot of the perpendicular line dropped to P is K, the sectional secondary moment I (m) of the section A with respect to the linear axis m passing through the point K and the centroid G, and the centroid G and with respect to the linear axis m The reinforcing member 10 is formed so that a relationship of I (m) <I (n) is established between the second moment of inertia I (n) of the section A with respect to the linear axis n in the plane P perpendicular to the vertical axis P. In the present embodiment, the shape of the cross section A is designed so that the strong axis direction (the axis where the cross-section secondary moment is maximum in terms of structural mechanics) matches the n-axis direction. Thus, the linear axis n is preferably substantially coincident (± 30 °) with the strong axis of the cross section A, and is particularly preferably perfectly coincident. In this configuration, as shown in FIGS. 7 and 8, the point K coincides with the reinforcing members 10 on both sides of the rotor 3.

  As described above, according to the spinning reel for fishing of the present embodiment, the tension of the fishing line is obtained by connecting the side portion of the arm portion 3b and the rear portion of the main body portion 3a of the rotor 3 with the reinforcing member 10. Thus, even when a large load is applied to the arm portion 3b, it is possible to disperse the stress through the reinforcing member 10 and to prevent deformation of the arm portion. As shown in FIGS. 3 to 5, the reinforcing member 10 has a beam structure and is appropriately provided with a gap portion such as a gap S without thickening the base portion of the arm portion 3 b. Therefore, it is possible to reduce the weight as much as possible while maintaining the strength of the arm portion (therefore excellent fishing operability).

  In particular, in the present embodiment, the reinforcing member 10 is bridged between the arm portions 3b so as to be convex (curved) toward the reel body 1 side. Is added, the stress can be effectively dispersed and stress concentration can be avoided, and the arm portion can be reinforced more effectively. Further, since the reinforcing members 10 are provided on both side portions of the arm portion 3b, it is possible to improve the reinforcement of the arm portion 3b more effectively and to improve the rotation balance of the rotor 3. Further, since the weight does not deviate toward the front side of the rotor 3, the weight balance can be achieved efficiently. Further, since the reinforcing member 10 is not disposed on the outer peripheral side of the spool 5, the fishing line does not get entangled with the reinforcing member 10, and the reinforcing member 10 becomes in the way and it is difficult to lock the fishing line to the line holder. There is nothing.

  Furthermore, both the reinforcing members 10 are separated from each other as they move to the base side of the arm portion with respect to both side portions of the arm portion 3b, so that the arm portion is so-called in a side view. It becomes a tapered shape, and even if the fishing line becomes entangled with the arm portion due to the thread dandruff or the thread twist at the time of release, it can be easily pulled forward, and the trouble can be solved. Further, by causing the curved reinforcing member 10 to protrude further downward than the lower edge of the skirt of the spool 5, the shape of the rotor portion changes and the appearance can be improved.

  Further, in the present embodiment, since the above-described relationship of I (m) <I (n) is established, it is possible to realize a configuration in which the direction in which the rigidity is imparted substantially coincides with the load direction. In addition to making it difficult to concentrate, the cross-sectional area of the reinforcing member 10 can be efficiently reduced (effectively reduced in weight), and the rotor 3 can be reduced as much as possible. In particular, if the linear axis n is substantially coincident with the strong axis of the cross section A (± 30 °), the maximum rigidity direction of the cross section A can be substantially coincident with the load direction, and the rotor 3 can be further reduced in weight. Can be achieved.

  9 to 15 show a second embodiment of the present invention. As illustrated, in the present embodiment, the longitudinal intermediate portion 99 of the reinforcing member 10 is integrally connected to the rear portion of the main body portion 3a of the rotor 3 via the connection portion 10a. In the present embodiment, the opening 90 is formed in the main body 3 a of the rotor 3. The opening 90 has a rectangular shape and is formed at a position facing the position where the arm portion 3b is formed at an angle of approximately 90 °. As described above, the opening 90 is formed at a position different from the arm portion forming position so as not to reduce the strength of the arm portion 3b. And in the lower end position of the opening 90, the intermediate part 99 of the reinforcement member 10 is integrally connected with the main-body part 3a via the connection part 10a.

  Further, in the configuration in which the reinforcing member 10 is connected to the main body 3a of the rotor 3 as in the present embodiment, the reinforcing members 10 on both sides can be efficiently reduced in weight while increasing the rigidity by the reinforcing members 10 on both sides. The design form for this is different from the first embodiment. Specifically, among the portions of the reinforcing member 10 excluding the connecting portion 10a between the reinforcing member 10 and the main body portion 3a of the rotor 3, the fishing line guide portion 3d is located on the fishing line guide portion 3d side with respect to the connecting portion 10a. Center point M (in the case where the fishing line guide portion 3d is in the form of a roller as in the present embodiment, the center in the width direction of the roller and the center (axial center) of the roller circle) along the axial direction of the rotor 3 A portion (the distance L (see FIG. 10) along the axial direction of the rotor 3 from the center M of the fishing line guide portion 3d is the largest) (ie, a portion adjacent to the end portion 70 of the connecting portion 10a on the fishing line guide portion side) In the configuration in which the reinforcing member 10 is connected to the rotor main body portion 3a as in the present embodiment, the stress is almost maximized at this portion near the fishing line guide portion 3d that receives a load from the fishing line). Of the cross section cut at an angle of A is a cross-section (elliptical shape) with a small area, A is the centroid of the cross-section A, P is a plane including the cross-section A, and K is a perpendicular foot drawn from the center point M of the fishing line guide portion 3d to the plane P. In the plane P in the plane P passing through the centroid G and perpendicular to the linear axis m, and the sectional secondary moment I (m) of the section A with respect to the linear axis (weak axis) m passing through the point K and the centroid G The reinforcing member 10 is formed so that a relationship of I (m) <I (n) is established between the second-order moment I (n) of the section A with respect to the linear axis (strong axis) n (in this case, (The linear axis n is preferably substantially coincident with the strong axis of the cross section A (± 30 °)). In the present embodiment, the shape of the cross section A is designed so that the strong axis direction coincides with the n-axis direction.

  Therefore, also in this embodiment, it is possible to obtain the same function and effect as in the first embodiment. Further, in the present embodiment, since the reinforcing member 10 and the main body 3a of the rotor 3 are connected via the connecting portion 10a at the longitudinal central portion 99 of the reinforcing member 10 that originally has a large load, the rigidity of that portion is increased. The height of the reinforcing member 10 excluding the connecting portion 10a is substantially the same as the load direction because the form of the non-connection side cross section A of the reinforcing member 10 satisfies the relationship of I (m) <I (n). Therefore, it is possible to make the reinforcing member 10 less likely to concentrate the stress, and to reduce the cross-sectional area of the reinforcing member 10 efficiently (to reduce the weight efficiently). It is possible to reduce the weight of the rotor 3 as much as possible. Moreover, in this embodiment, since the opening 90 is provided in the vicinity of the connection part 10a, it is prevented that the rigidity of the connection part 10a becomes high too much compared with the periphery, and the connection part 10a end vicinity of the reinforcement member 10 is carried out. The stress concentration of the rotor 3 is relaxed, and the rotor 3 can be reduced in weight as much as possible.

  16 to 21 show a third embodiment of the present invention. This embodiment is a modification of the first embodiment, and the reinforcing member 10 that is not connected to the main body 3a of the rotor 3 has two first and second beam members 10A extending in a curved shape adjacent to each other. 10B. Note that the number of beam members constituting the reinforcing member 10 is not limited to two, and may be three or more.

  Thus, even when the reinforcing member 10 is composed of a plurality of beam members 10A and 10B, the design philosophy for efficiently reducing the weight of the reinforcing members 10 on both sides while increasing the rigidity by the reinforcing members 10 on both sides is the first. This is the same as the embodiment. However, when considering the cross-sectional secondary moment and the like, the two beam members 10A and 10B are regarded as one system. Specifically, as shown in FIGS. 16, 17, and 21, the furthest away from the center point M of the fishing line guide portion 3d along the axial direction of the rotor 3 (from the center M of the fishing line guide portion 3d to the rotor 3). The portion of the reinforcing member 10 having the largest distance L along the axial direction of the second beam member 10B located on the far side from the fishing line guide portion 3d (that is, the second beam member). A cross-section (perfect circle) having the smallest area among the cross-sections obtained by cutting the reinforcing member 10 (each of the first and second beam members 10A and 10B) at an arbitrary angle at the lowermost end portion in the longitudinal intermediate region of the member 10B. (Shape) is A (the respective cross sections A1 and A2 of the first and second beam members 10A and 10B), the centroid of the cross section A is G (the centroid of the cross section of the cross section A1 and the cross section A2), and the cross section (A1, A2) P, plane containing A, fishing If the foot of the perpendicular drawn from the center point M of the yarn guide portion 3d to the plane P is K, the sectional secondary moment I (m) of the section A with respect to the linear axis m passing through this point K and the centroid G, A relationship of I (m) <I (n) is established between the second moment I (n) of the section A with respect to the linear axis n in the plane P passing through the center G and perpendicular to the linear axis m. A reinforcing member 10 is formed on the surface. In this case, the linear axis n is preferably substantially coincident (± 30 °) with the strong axis of the cross section A (the axis where the secondary moment of the cross section is maximum in terms of structural mechanics). In this embodiment, the shape of the cross section A Is designed so that the strong axis direction coincides with the n-axis direction. Also in this configuration, as shown in FIGS. 20 and 21, the point K coincides with the reinforcing members 10 on both sides of the rotor 3. Therefore, also in this embodiment, the same effect as the first embodiment can be obtained, and the reinforcing member 10 is composed of a plurality of beam members 10A and 10B, so that the specific rigidity is increased while efficiently controlling the directionality. It is possible to reduce the weight of the rotor 3 as much as possible.

  22 to 28 show a fourth embodiment of the present invention. This embodiment is a modification of the second embodiment, and the reinforcing members 10 connected to the main body 3a of the rotor 3 are two first and second beam members 10A that extend in a curved shape adjacent to each other. , 10B. In this case, the first beam member 10A located on the fishing line guide portion 3d side is connected to the rear portion of the rotor main body portion 3a via the connection portion 10a at the middle portion in the longitudinal direction. Note that the number of beam members constituting the reinforcing member 10 is not limited to two, and may be three or more.

  Thus, even if the reinforcing member 10 is composed of a plurality of beam members 10A and 10B, the design philosophy for efficiently reducing the weight of the reinforcing members 10 on both sides while increasing the rigidity by the reinforcing members 10 on both sides is the second. This is the same as the embodiment. However, when considering the cross-sectional secondary moment and the like, the two beam members 10A and 10B are regarded as one system. Specifically, as shown in FIGS. 22, 27, and 28, the portion of the reinforcing member 10 excluding the connecting portion 10 a between the reinforcing member 10 (first beam member 10 </ b> A) and the main body 3 a of the rotor 3. Among them, it is located on the fishing line guide 3d side with respect to the connecting portion 10a and is farthest along the axial direction of the rotor 3 from the center point M of the fishing line guide 3d (the axial direction of the rotor 3 from the center M of the fishing line guide 3d). The second beam member that is located on the side farther from the fishing line guide portion 3d and that is adjacent to the fishing line guide portion side end of the connecting portion 10a. 10B), the cross section having the smallest area (the perfect circular shape) among the cross sections obtained by cutting the reinforcing member 10 (each of the first and second beam members 10A and 10B) at an arbitrary angle at A (the portion of 10B) is A (first and second). Each of the two beam members 10A and 10B The cross section A1, A2), the centroid of the cross section A is G (the centroid of the cross section combining the cross section A1 and the cross section A2), the plane including the cross section (A1, A2) A is P, and the center point of the fishing line guide 3d Assuming that the foot of the perpendicular line from M to the plane P is K, the secondary moment I (m) of the cross section A with respect to the linear axis m passing through this point K and the centroid G, and the linear axis passing through the centroid G and the linear axis The reinforcing member 10 is formed so that a relationship of I (m) <I (n) is established between the second moment I (n) of the section A with respect to the linear axis n in the plane P perpendicular to m. ing. In this case, it is preferable that the linear axis n substantially coincides (± 30 °) with the strong axis of the section A (the axis where the second moment of section is maximum in terms of structural mechanics). Therefore, also in this embodiment, the same effect as the second embodiment can be obtained, and the reinforcing member 10 is composed of a plurality of beam members 10A and 10B, so that the specific rigidity is increased while efficiently controlling the directionality. It is possible to reduce the weight of the rotor 3 as much as possible.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to above-described embodiment, It can change variously.

  About the reinforcement member 10 mentioned above, about the shape, it is possible to change suitably. For example, when forming a convex shape toward the reel body, it may be a straight shape such as a substantially V shape or a substantially U shape instead of a curved shape. Further, the surface of the reinforcing member 10 may not be a flat surface, but the middle part may be a thick part and this part may be connected to the rear part of the main body part 3 b of the rotor 3. With this configuration, it is possible to improve the strength of the connection portion. Further, the thickness of the reinforcing member 10 can be appropriately changed, and the connection position of the rotor 3 to the main body can be appropriately changed as long as it does not hinder the forward / backward movement of the spool 5.

  In the first and second embodiments, the cross section A is shown as an ellipse, and in the third and fourth embodiments, the cross section A is shown as a circle. However, the shape and directionality of the cross section A are not limited thereto. For example, as shown in FIG. 29A, even if the cross section A has an elliptical shape, the linear axis n is a weak axis inherent to the cross section A (axis that minimizes the secondary moment of section) U. And the linear axis n does not coincide with the strong axis V (the axis where the secondary moment of inertia is maximized) V inherent to the cross section A, the angle θ formed by the weak axis U and the linear axis m is If the relationship of −45 ° <θ <+ 45 ° is satisfied, the relationship of I (m) <I (n) is established. Similarly, as shown in FIG. 29B, even if the cross sections A1 and A2 of the two beam members 10A and 10A constituting the reinforcing member 10 are circles, the linear axis n is the cross section A (A1 and A2). The cross-section as one system) does not coincide with the weak axis (the axis where the secondary moment of the cross-section becomes minimum) U, and the linear axis n is the strong axis specific to the cross-section A (the cross-section secondary moment is maximized) If the angle θ formed by the weak axis U and the linear axis m satisfies the relationship of −45 ° <θ <+ 45 °, the relationship of I (m) <I (n) is satisfied. To establish. Further, similarly, when the cross section A is rectangular as shown in FIG. 30A, or when the cross section A has two circular members 10A and 10B as shown in FIG. Even when forming a shape in which the cross-sections are connected by the connecting section 10b having a linear cross section, if the angle θ formed by the weak axis U and the linear axis m inherent in the cross section A satisfies the relationship of −45 ° <θ <+ 45 °, The relationship of I (m) <I (n) is established.

DESCRIPTION OF SYMBOLS 1 Reel main body 3 Rotor 3a Main-body part 3b Arm part 3c Support member 3d Fishing line guide part 5 Spool 10 Reinforcement member 10A, 10B Beam member 90 Opening A Section G Centroid P Plane m, n Linear axis

Claims (5)

A reel body, a rotor rotatably provided on the reel body, and a spool around which a fishing line is wound, the rotor including a body portion and a pair of arm portions formed opposite to both sides of the body portion; A support member that is attached to the tip of each arm portion and supports the bale, and one of the support members is provided with a fishing line guide portion that guides the fishing line wound around the spool. In a spinning reel for fishing where a fishing line is wound around a spool via the fishing line guide part by rotation,
A reinforcing member that connects a side portion of one arm portion and a side portion of the other arm portion; the reinforcing member moves away from the arm portion as it moves to the base side of the arm portion; Bridged between the pair of arm portions so as to be convex toward
A cross section having the smallest area among the cross sections obtained by cutting the reinforcing member at an arbitrary angle at a portion of the reinforcing member farthest from the fishing line guide portion along the axial direction of the rotor is indicated by A. G, where P is a plane including the cross section A, and K is a perpendicular foot drawn from the center point of the fishing line guide portion to the plane P, a cross section 2 of the cross section A with respect to the linear axis m passing through the point K and the centroid G. Between the second moment I (m) and the sectional second moment I (n) of the section A with respect to the linear axis n in the plane P passing through the centroid G and perpendicular to the linear axis m, I (m ) <Spinning reel for fishing, characterized in that the relationship of <I (n) holds. A reel body, a rotor rotatably provided on the reel body, and a spool around which a fishing line is wound, the rotor including a body portion and a pair of arm portions formed opposite to both sides of the body portion; A support member that is attached to the tip of each arm portion and supports the bale, and one of the support members is provided with a fishing line guide portion that guides the fishing line wound around the spool. In a spinning reel for fishing where a fishing line is wound around a spool via the fishing line guide part by rotation,
A reinforcing member that connects a side portion of one arm portion and a side portion of the other arm portion is provided, and a part of the reinforcing member is connected to the main body portion of the rotor, and the base portion side of the arm portion is As it moves away from the arm part, it is bridged between the pair of arm parts so as to be convex toward the reel body side,
Of the portion of the reinforcing member excluding the connecting portion between the reinforcing member and the main body portion of the rotor, it is located on the fishing line guide portion side with respect to the connecting portion and extends from the fishing line guide portion along the axial direction of the rotor. The cross section with the smallest area among the cross sections obtained by cutting the reinforcing member at an arbitrary angle at the farthest part is A, the centroid of the cross section A is G, the plane including the cross section A is P, the center point of the fishing line guide portion Let K be the foot of the perpendicular drawn from the plane P to the plane P. The secondary moment I (m) of the section A with respect to the linear axis m passing through this point K and the centroid G, and the linear axis m passing through the centroid G and the linear axis m. A relationship of I (m) <I (n) is established between the secondary moment I (n) of the cross section A with respect to the linear axis n in the plane P perpendicular to Spinning reel.   The fishing spinning reel according to claim 1, wherein the linear axis n substantially coincides with the strong axis of the cross section A.   The fishing spinning reel according to any one of claims 1 to 3, wherein the reinforcing member includes a plurality of beam members.   3. The fishing spinning reel according to claim 2, wherein an opening is provided in the main body of the rotor in the vicinity of the connecting portion.

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