JP2007319013A - Handle-attaching structure of fishing reel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handle-attaching structure of a fishing reel effective for preventing the loosening involved in the rotary operation of the handle and having high designing freedom to enable easy application to a shaftless structure free from a shaft at the handle side without making the shaft diameter large. <P>SOLUTION: The structure is provided with a recess 52 and a protrusion 54 engaging with each other when a connection part 15 (handle shaft 2) is interlocked with a driving shaft 14 to prevent the relative rotation of the shafts. The recess 52 and the protrusion 54 are placed in a manner deviated in circumferential direction. The rotation-preventing interlocking parts 2, 15 are rotated from the initial interlocking position to fit the forms of the parts along the inclined faces of the recess 52 and the protrusion 54 according to the progress of the engagement of the recess 52 and the protrusion 54 and, accordingly, the play caused by clearance is suppressed by the contact of both parts in circumferential direction accompanying the relative rotation of the rotation-preventing interlocking parts 2, 15 even if a clearance is present between the rotation-preventing interlocking parts 2, 15 at the initial interlocking position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement in a handle mounting structure of a fishing reel that is detachably connected to a drive shaft of a drive mechanism built in a reel body.

  The drive shaft of the drive mechanism built in the reel body is formed as a hollow shaft having a polygonal noncircular inner periphery, and a drive gear is provided integrally therewith. On the inner periphery of one side of the drive shaft, a handle shaft having an outer periphery formed in a polygonal shape and fitted with a handle is fixed and fastened with screws.

  In this way, when the handle is rotated and the winding operation is performed while the handle shaft is fitted to the drive shaft in a non-rotating manner, rattling occurs in the rotational direction due to the play of the fitting portion, and the handle There is a problem that the screw that is fastened is loosened by repeating the rotation operation.

Therefore, in Patent Document 1, an engaging recess having an inclined surface is formed on one of the handle shaft and the drive shaft, and an engaging protrusion having an abutting surface that matches the inclined surface is formed on either one of them. The contact surface is brought into contact with the inclined surface by a pressing force generated by tightening a handle screw that is formed and screwed to the tip of the handle shaft, and the handle shaft is displaced in the circumferential direction with respect to the drive shaft. Thus, the handle shaft is pressed into the non-circular through hole of the drive shaft to prevent backlash.
Japanese Patent Laid-Open No. 11-299398

  However, in the technique disclosed in Patent Document 1, the pressing force applied to the engagement recess when the handle screw is tightened acts on the outer side in the radial direction. It is necessary to increase the radial dimension of the engaging recess and design it to be thick. Therefore, the outer diameters of the handle shaft and the drive shaft are increased, and the reel may be increased in size and weight. In addition, such a technique is difficult to apply to a shaftless structure having no shaft portion on the handle side, and cannot be widely developed.

  The present invention has been made paying attention to the above circumstances, and the object of the present invention is to prevent backlash associated with the handle rotation operation without increasing the diameter of the shaft portion, It is an object of the present invention to provide a fishing reel handle mounting structure with a high degree of freedom in design that can be easily applied to a shaftless structure without any problem.

  In order to solve the above-mentioned problems, the present invention provides a fishing reel handle mounting structure in which a driving shaft having a driving gear is non-rotatingly fitted and fastened to the other of the connecting portions having a handle on one side. The connecting portion and the drive shaft have a non-circular anti-rotation fitting portion that fits each other and a facing surface that faces each other in the axial direction, and the facing surface of the connecting portion and the facing surface of the drive shaft A concave portion having an inclined inner surface is formed on one of the two, and an inclined shape is formed in which the other is pressed against and engaged with the concave portion in the axial direction when fastened with a non-rotating fit. A convex portion having an inner surface is formed, and the concave portion and the convex portion are formed along the inclined inner surface from an initial fitting position where the anti-rotation fitting portion matches its shape as they engage. They are offset in the circumferential direction so that they rotate. It is characterized in that is.

  In the above configuration, the concave portion and the convex portion that are engaged with each other when the coupling portion and the drive shaft are engaged with each other are provided, and the concave portion and the convex portion are arranged so as to be offset from each other in the circumferential direction. Since the rotation stop fitting portion is adapted to rotate along the inclined inner surfaces of the concave portion and the convex portion from the initial fitting position where the shapes of the non-rotating fitting portions match each other, the initial fitting position In the case where there is a clearance (play) between the non-rotating fitting portions, the clearance between the two due to the relative rotation of the non-rotating fitting portions causes the clearance. The accompanying backlash is suppressed. That is, not the radial press contact action disclosed in Patent Document 1 described above, but the rotation stop by the axial press contact action of the inclined engaging projections and recesses formed on the axially opposed surfaces of the drive shaft and the connecting portion. The fitting parts are displaced from each other in the rotational direction to suppress backlash in the rotational direction of the connecting part with respect to the drive shaft. For this reason, it is not necessary to increase the radial dimension of the engaging uneven portion to ensure the required strength and to design it to be thick (thus, without increasing the diameter of the shaft portion), it is easy to use the current handle structure. It can be applied to. In addition, since this configuration can be easily applied to the shaftless structure of the connecting portion, it is possible to avoid dimensional variations during shaft insert molding, and the application range is wide and the degree of design freedom increases.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to prevent rattling due to the steering wheel rotation operation without increasing the diameter of the shaft portion, and a fish with a high degree of design freedom that can be easily applied to a shaftless structure without a shaft portion on the handle side. A fishing reel handle mounting structure can be provided.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 to 8 show a first embodiment of the present invention. As shown in FIGS. 1 and 2, a fishing spinning 1 according to this embodiment includes a reel body (reel body) 1a, a lid body 1b that closes an opening of the reel body 1a, and a reel body 1a. It has a leg portion 1c that extends, and a rod attachment portion (not shown) that is formed at the end of the leg portion 1c and is attached to a fishing rod (not shown).

  A handle shaft 2 having a handle 5 is rotatably supported on the reel body 1a. The handle shaft 2 extends in the axial direction integrally with the connecting portion 15 having the handle 5 on one side, and has a driving gear 3 rotatably supported in the reel body 1a. It is designed to rotate integrally with the drive shaft 14 by being fitted with a rotation stop and fastened (the details will be described later). The connecting portion 15 is integrally formed with a skirt-like handle stand 40 so as to surround it.

  A tubular pinion gear 13 is engaged with the drive gear 3. The pinion gear 13 is integrally formed with a tubular rotor shaft (not shown) that extends in a direction orthogonal to the drive shaft 14 and is rotatably supported by the reel body 1a via a bearing. A rotor 8 provided with a bail 6 and a fishing line guide device 19 is integrally attached to the tip of the shaft.

  A spool shaft 9 extending in a direction orthogonal to the drive shaft 14 passes through the pinion gear 13 and the rotor shaft. In this case, the spool shaft 9 is arranged concentrically with the pinion gear 13 and can move back and forth along a direction orthogonal to the drive shaft 14. A spool 10 around which a fishing line is wound is attached to the tip of the spool shaft 9.

  The drive gear 3 is engaged with an oscillating mechanism (not shown) via a pinion gear 13. This oscillating mechanism is configured and arranged to reciprocate (back and forth) the spool shaft 9 along the axial direction when the handle shaft 2 and the drive shaft 14 are rotated by rotating the handle 5. .

  Therefore, in such a configuration, when the handle 5 is rotated to rotate the handle shaft 2 and the drive shaft 14, the spool 10 attached to the spool shaft 9 reciprocates back and forth through the oscillating mechanism. The rotor 8 is rotationally driven via the drive gear 3 and the pinion gear 13. Accordingly, the fishing line is evenly wound around the spool 10 via the fishing line guide device 19.

  Further, in the embodiment, as clearly shown in FIGS. 2 and 3, the handle shaft 2 extends coaxially from the connecting portion 15 and has a hexagonal outer shape and a circular inner hole 2 a. It is formed as a hollow shaft having. On the other hand, as clearly shown in FIGS. 2 and 4, the drive shaft 14 is formed as a hollow shaft having a hexagonal inner hole 14 a that is engaged with the handle shaft 2 to prevent rotation. That is, in the present embodiment, the handle shaft 2 is provided integrally with the connecting portion 15 as a non-circular detent fitting portion, while the drive shaft 14 itself is non-fitted to be fitted with the handle shaft 2. It is formed as a circular detent fitting part.

  In addition, as shown in FIG. 2, the drive shaft 14 is offset and orthogonal to the rotor shaft on which the pinion gear 13 is mounted, and the handle 5 can be replaced on the left and right. The reel body 1a extends so as to intersect with the spool shaft 9. Specifically, both side portions of the drive shaft 14 are rotatably supported by the reel body 1a via bearings 41 and 42, and both left and right end portions 14b of the drive shaft 14 to which the handle 5 and the connecting portion 15 are fixed. 14c is positioned in openings 50 and 50 formed on the side portions of the reel body 1a and the lid body 1b so as to face both the left and right sides of the reel body 1a.

  Further, in the present embodiment, as shown in FIG. 2, the handle shaft 2 is inserted into the inner hole 14 a of the drive shaft 14 from one side in a fitted state, and is fastened on the other side of the drive shaft 14. 32 is fastened and fixed to the drive shaft 14. Specifically, the fastener 32 includes a fixing closing cover 32A that closes the opening 50 of the reel body 1a, and a male screw member 32B that is integrally fixed (for example, press-fitted and fixed) to the closing cover 32A. A female screw 30 that can be screwed into the male screw member 32B is formed at the end of the inner hole 2a of the handle shaft 2, and the inner hole 2a of the handle shaft 2 located on the other side of the drive shaft 14 is formed. By screwing the male screw member 32B into the end and locking the closing cover 32A to the outer periphery of the opening 50 of the reel body 1a, the drive shaft 14 and the handle shaft 2 are non-rotatably fitted and fastened together. It is supposed to be fixed. A locking member 39 for preventing rattling is interposed between the drive shaft 14 and the closing cover 32A.

  In the present embodiment, one end of the connecting portion 15 and both ends 14b and 14c of the drive shaft 14 are pressed against each other in the axial direction when the handle shaft 2 is fastened and fixed by the fastener 32 on one end side of the drive shaft 14. Opposing surfaces 15A, 14A, and 14A are provided. In this case, as shown in detail in FIGS. 3 and 4, one convex portion 54 having an inclined outer surface is formed on the facing surface 15 </ b> A of the connecting portion 15, and both ends of the drive shaft 14 are formed. Each of the opposing surfaces 14A and 14A is formed with one concave portion 52 having an inclined inner surface that presses and engages with the convex portion 54 in the axial direction when the handle shaft 2 and the drive shaft 14 are locked with each other. ing.

  Specifically, as shown in FIG. 3, the convex portion 54 extends inward in the radial direction from the outer peripheral edge of the facing surface 15 </ b> A of the connecting portion 15 toward the handle shaft 2, and tapers toward the tip. It has a shape and protrudes in the axial direction. In this case, the convex portion 54 has an upper inclined surface 54a inclined downward toward the tip and a lower inclined surface 54b inclined upward toward the tip, and these inclined surfaces 54a and 54b are The projecting portions 54 intersect each other at the axially projecting end portion 61. Moreover, the convex part 54 has the intersection line of the upper side inclined surface 54a and the lower side inclined surface 54b which form the axial direction protrusion end part 61 extended horizontally. On the other hand, as shown in FIG. 4, the concave portion 52 is formed on the facing surface 14 </ b> A of the drive shaft 14 so as to have a corresponding shape that can engage with the convex portion 54, and tapers inward in the axial direction. It has a triangular shape. In this case, the recess 52 has an upper inclined surface 52a that is inclined upward toward the tip, and a lower inclined surface 52b that is inclined downward toward the tip, and these inclined surfaces 52a and 52b are recessed. The inner end portions 63 in the axial direction of 52 intersect each other. Further, the recess 52 extends obliquely in the radial direction so that an intersection line between the upper inclined surface 52a and the lower inclined surface 52b forming the axially inner back end portion 63 forms an angle θ with respect to the horizontal line o. (See (b) and (c) of FIG. 4)

  Further, in the present embodiment, the convex portion 54 and the concave portion 52 are inclined surfaces 54a from the initial fitting position where the anti-rotation fitting portions (the handle shaft 2 and the drive shaft 14) match their shapes as they are engaged. , 54b; 52a, 52b so as to rotate along the circumferential direction. Specifically, considering the state in which the handle shaft 2 and the drive shaft 14 are fitted so that the convex portion 54 and the concave portion 52 can be engaged, before the convex portion 54 and the concave portion 52 are engaged ( Alternatively, in the initial fitting position at the start of engagement (see FIG. 5), the concave portion is seen from the direction orthogonal to the axial direction (viewed from the direction of FIGS. 4A and 5). An axial line L2 that passes through the inner back end 63 of the axial direction 52 and parallel to the central axis of the drive shaft 14 is an axis L1 that passes through the axially protruding end 61 of the convex part 54 and parallel to the central axis of the handle shaft 2. Further, it is offset by s, and when viewed from the axial direction (viewed from (b) and (c) of FIG. 4), the center of the drive shaft 14 and the inner end in the axial direction (inclined surfaces 52a and 52b). Of the handle shaft 2 and the axially projecting ends (inclined surfaces 54a, 54). It has become a predetermined angle θ with respect to a plane P1 passing through the intersection line) 61.

  Therefore, even if there is a clearance c between the drive shaft 14 and the handle shaft 2 as shown in FIG. 6 at this initial fitting position, the handle shaft 2 is further moved from this position to the drive shaft. 14 until it is fully inserted (state of FIG. 7) from when the convex portion 54 and the concave portion 52 begin to engage (state of FIG. 5). The handle shaft 2 rotates by a predetermined amount δ in the fishing line winding rotation direction R with respect to the drive shaft 14 by guiding the inclined surfaces 54a, 54b; 52a, 52b, and the hexagonal apex of the handle shaft 2 is the inner hole 14a of the drive shaft 14. (See FIG. 8), thereby preventing backlash associated with the clearance c. This rotation state (preventing rattling state) is held by fastening the handle shaft 2 to the drive shaft 14 by the fastener 32 as shown in FIG. The concave portion 52 and the opposing surfaces 14A and 15A come into pressure contact with each other in the axial direction.

  As described above, in the present embodiment, the concave portion 52 and the convex portion 54 that are engaged with each other when the connecting portion 15 (the handle shaft 2) and the drive shaft 14 are engaged with each other are provided. As the portions 54 are displaced from each other in the circumferential direction, and the concave portions 52 and the convex portions 54 engage with each other, the anti-rotation fitting portions 2 and 15 start from the initial fitting position where the shapes match each other. Since it rotates along the inclined surfaces 54a, 54b; 52a, 52b of the convex portion 54, there is a clearance c between the detent fitting portions 2, 15 at the initial fitting position. Even if it is a case, the backlash | fluctuation accompanying clearance is suppressed by both butting in the circumferential direction accompanying the relative rotation of the rotation stop fitting parts 2 and 15. That is, instead of the radial pressure contact action disclosed in Patent Document 1 described above, the inclined engagement uneven portions 54 and 52 formed on the axially opposed surfaces 14A and 15A of the drive shaft 14 and the connecting portion 15 are not affected. Due to the axial pressure contact action, the non-rotating fitting portions 2 and 14 are displaced in the rotational direction to suppress backlash in the rotational direction of the connecting portion 15 with respect to the drive shaft 14. For this reason, it is not necessary to increase the radial dimension of the engaging irregularities 54 and 52 to ensure the required strength and to increase the thickness (the shaft portions 14 and 15 do not increase in diameter). It can be easily applied to the handle structure.

  9 to 13 show a second embodiment of the present invention. In the present embodiment, the present invention is applied to a handle shaftless type in which the handle shaft 2 is not provided in the connecting portion 15. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 9, in this embodiment, the connecting portion 15 is connected to the handle stand 40 in the radial direction over almost the entire length of the handle stand 40, so to speak, the handle stand 40 has a solid structure. It has become. In addition, a shaft 90 is integrally inserted and fixed in the inner hole 14a of the drive shaft 14, a closing cover 32A is press-fitted and fixed to one end of the shaft 90, and a male screw is formed on the other end of the shaft 90. A joint portion 90a is provided. The screwing portion 90 a can be screwed into a female screw hole 15 b provided in the connecting portion 15.

  In the present embodiment, the end 14b of the drive shaft 14 located on the side opposite to the closing cover 32A has a hexagonal outer shape, and forms a detent fitting portion of the drive shaft 14. On the other hand, the end portion of the connecting portion 15 has a hexagonal fitting hole 15 a into which the end portion 14 b of the drive shaft 14 can be fitted, and forms a detent fitting portion of the connecting portion 15. A concave portion 52 is provided on the facing surface 14A of the end portion 14b of the drive shaft 14, and a convex portion 54 is provided on the facing surface 15A of the connecting portion 15 in the same manner as in the first embodiment.

  Therefore, in the initial fitting position as shown in FIG. 10 (fitted state between the end portion 14b of the drive shaft 14 and the fitting hole 15a before the convex portion 54 and the concave portion 52 are engaged) in FIG. Even when the clearance c exists between the drive shaft 14 and the handle shaft 2 as shown in (b), the threaded portion 90a of the shaft 90 is moved from this position to the female screw hole 15b. When the screw is further screwed in, the drive shaft 14 is inclined from the start of the engagement of the convex portion 54 and the concave portion 52 to the state of complete engagement (the state shown in FIGS. 9 and 12). The hexagonal apex of the end portion 14b of the drive shaft 14 is turned to the hexagonal surface of the fitting hole 15a of the connecting portion 15 by rotating a predetermined amount in the fishing line winding rotation direction R with respect to the connecting portion 15 by the guidance of 52a and 52b. At the end (see Fig. 13), the clearance Rattling is prevented due to. Of course, this rotation state (prevention of rattling) is held by screwing between the screwing portion 90a of the shaft 90 and the female screw hole 15b, and thereby, the convex portion 54 and the concave portion 52 (the opposing surface 14A, 15A) come into pressure contact with each other in the axial direction. Therefore, the same effect as the first embodiment can be obtained.

  Needless to say, the present invention is not limited to the above-described embodiments, and can be variously modified without departing from the scope of the invention. For example, in the embodiment described above, only one convex portion 54 and one concave portion 52 are provided, but a plurality of convex portions and concave portions may be provided. In the above-described embodiment, the connecting portion 15 is provided with the convex portion 54 and the drive shaft 14 is provided with the concave portion 52. However, the connecting portion 15 is provided with the concave portion 52 and the drive shaft 14 is provided with the convex portion. It does not matter. In the above-described embodiment, the shape of the anti-rotation fitting portion is hexagonal, but any shape other than a circle can be adopted as long as anti-rotation can be realized.

1 is a side view of a fishing reel to which a first embodiment of the present invention is applied. It is an expanded sectional view which follows the AA line of FIG. (A) is a side view of the handle shaft and connection part of the handle attachment structure concerning the 1st Embodiment of this invention, (b) is a B direction arrow directional view of (a). (A) is a side view of the drive shaft of the handle mounting structure according to the first embodiment of the present invention, (b) is a C direction arrow view of (a), (c) is a D direction arrow view of (a). FIG. It is a side view which has a partial cross section of the connection part and drive shaft in an initial fitting position. It is sectional drawing which follows the EE line | wire of FIG. It is a side view which has a partial cross section of the connection part and drive shaft which show the state which the recessed part and the convex part engaged completely. It is sectional drawing which follows the FF line | wire of FIG. It is a side view which has a partial cross section of the connection part and drive shaft of the handle | steering-wheel attachment structure which concern on the 2nd Embodiment of this invention which shows the state which the recessed part and the convex part engaged completely. It is a side view which has a partial cross section of the connection part and drive shaft in an initial fitting position. (A) is sectional drawing which follows the GG line of FIG. 10, (b) is sectional drawing which follows the HH line of FIG. It is a side view which has a partial cross section of the connection part and drive shaft which show the state which the recessed part and the convex part engaged completely. It is sectional drawing which follows the II line | wire of FIG.

Explanation of symbols

1 Fishing spinning reel 2 Handle shaft (non-rotating fitting part)
3 Drive gear 5 Handle 14 Drive shaft (non-rotating fitting part)
14A Opposing surface 14b End (Rotation stop fitting part)
15 connecting part 15a fitting hole (non-rotating fitting part)
15A Opposing surface 54 Convex part 52 Concave part 54a, 54b; 52a, 52b Inclined surface

Claims (1)

In the handle attachment structure of the fishing reel for fixing and fastening the drive shaft having the drive gear to the other side of the connecting part having the handle on one side,
The connecting portion and the drive shaft have a non-circular anti-rotation fitting portion that fits each other and a facing surface that faces each other in the axial direction, and the facing surface of the connecting portion and the facing surface of the drive shaft A concave portion having an inclined inner surface is formed on one of the two, and an inclined shape is formed in which the other is pressed against and engaged with the concave portion in the axial direction when fastened with a non-rotating fit. A convex portion having an outer surface of
As the concave portion and the convex portion are engaged with each other, the rotation preventing fitting portion is offset in the circumferential direction so as to rotate along the inclined inner surface from an initial fitting position where the shapes of the non-rotating fitting portions match each other. A fishing reel handle mounting structure characterized by being provided at an elevated position.

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