JP5492804B2 - Fishing spinning reel - Google Patents

Description

  The present invention relates to a spinning reel for fishing, and more particularly to a spinning reel for fishing characterized by a handle shaft that is rotationally driven by a rotating operation of the handle and a drive gear (drive gear) attached to the handle shaft.

  The spinning reel for fishing has a structure that includes a rotor that rotates in conjunction with a winding operation of a handle and a spool that moves back and forth, and a drive gear for transmitting a driving force to the handle shaft of the handle. It is installed. In general, it is known that the drive gear and the handle shaft are integrally formed by die casting so as to be easily formed.

  However, if the drive gear and the handle shaft are integrally formed, the female screw portion may be crushed when a female screw portion for attaching the handle is formed on the handle shaft thereafter, and the strength of the handle shaft may be reduced. Therefore, as disclosed in Patent Document 1, a handle shaft is formed in advance by cutting an aluminum alloy, the cut handle shaft is inserted into a mold, and the drive gear is made of an aluminum alloy. Die casting technology is known. In the technique disclosed in Patent Document 1, a protrusion is formed on the outer periphery of the handle shaft, and the drive gear is fixed to the handle shaft by a die-cast molding on the protrusion. In addition, the movement in the axial direction is restricted.

JP-A-2005-348636

  However, in the known technique described above, since the protrusion is formed by cutting on the outer periphery of the handle shaft, the processing cost increases. Further, in order to improve the winding feeling of the handle, it is preferable that the two are made of different metals so that vibration attenuation at the joint portion between the handle shaft and the drive gear is increased. In the joining, it is preferable to use a high specific gravity material such as stainless steel for the handle shaft so as to improve its strength. In this case, if the protrusion is formed on the outer peripheral portion of the handle shaft by cutting as in the known technique described above, the weight increases as a whole and an attempt is made to improve the bonding strength (enlarge the protrusion). , More weight will increase.

  The present invention has been made paying attention to the above-mentioned problems, and provides a spinning reel for fishing that can reduce the overall weight and reduce the processing cost while ensuring the joint strength at the fixed portion of the handle shaft and the drive gear. The purpose is to provide.

  In order to achieve the above-mentioned object, the present invention meshes with a handle shaft that is rotatably supported by a reel body and is mounted with a handle to be wound, and a pinion gear that transmits the rotation of the handle to a rotor. In a fishing spinning reel having a drive gear integrated with a handle shaft, the handle shaft is formed by cutting a metal material, and the drive gear is inserted into the mold. The handle shaft is integrated with the handle shaft, and the handle shaft is provided with a plurality of through-holes penetrating inside the portion that is joined to the drive gear, and a part of the drive gear is part of the through-hole. It is characterized by being filled inside.

  In the fishing spinning reel having the above-described configuration, the part that integrates the handle shaft and the drive gear has a through-hole formed in the handle shaft, and the drive gear is die-cast molded in this portion. The handle shaft can be easily processed and the cost can be reduced. Also, when both are joined with dissimilar metals, by forming a through hole on the handle shaft side, the overall weight can be reduced while maintaining the joining strength, and further, the winding feeling can be improved. It becomes possible.

  According to the present invention, it is possible to obtain a spinning reel for fishing that secures the joint strength at the fixed portion of the handle shaft and the drive gear, is low in processing cost, and can be reduced in weight as a whole.

The fragmentary sectional view which shows one Embodiment of the spinning reel for fishing which concerns on this invention. The fragmentary sectional view which looked at the spinning reel for fishing shown in FIG. 1 from the back side. Sectional drawing which shows the handle shaft with which the drive gear was integrated in the spinning reel for fishing shown in FIG. Sectional drawing along the AA line of FIG. The figure which shows the structure of a handle shaft. The figure which shows an example of the manufacturing method of the handle shaft with which the drive gear was integrated (1st step). The figure which shows an example of the manufacturing method of the handle shaft with which the drive gear was integrated (2nd step). The figure which shows an example of the manufacturing method of the handle shaft with which the drive gear was integrated (3rd step). The figure which shows 2nd Embodiment of the handle shaft with which the drive gear was integrated. The figure which shows 3rd Embodiment of the handle shaft with which the drive gear was integrated. The figure which shows 4th Embodiment of the handle shaft with which the drive gear was integrated. The figure which shows 5th Embodiment of the handle shaft with which the drive gear was integrated. The figure which shows 6th Embodiment of the handle shaft with which the drive gear was integrated.

Hereinafter, an embodiment of a spinning reel for fishing according to the present invention will be described.
1 is a partial cross-sectional view showing an embodiment of a fishing spinning reel, FIG. 2 is a partial cross-sectional view of the fishing spinning reel shown in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a cross-sectional view showing a handle shaft in which a drive gear is integrated in a fishing spinning reel, FIG. 4 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. FIG.

First, with reference to FIG.1 and FIG.2, the whole structure of the spinning reel for fishing is demonstrated.
A spinning reel 1 for fishing is synchronized with a reel body 2 in which a rod attachment portion 2a for mounting on a fishing rod is formed, a rotor 3 rotatably disposed in front of the reel body, and a rotational motion of the rotor 3. And a spool 5 arranged to be movable back and forth. A handle shaft 6 is rotatably supported on the reel body 2 via a pair of bearings 7, and a handle 8 is attached to the end thereof. In this case, the handle 8 is adapted to be attached to either end of the handle shaft 6 depending on whether it is right-handed or left-handed by removing the cap 9 attached to the reel body 2. Specifically, when the cap 9 screwed to the reel body 2 is removed, a screw portion (in this embodiment, a male screw portion) 6a formed at the end of the handle shaft 6 is exposed, By screwing a female screw portion 8 a formed on the handle 8 into this portion, the handle 8 can be attached to either end of the handle shaft 6.

  A drive gear 10 is integrally fixed to the handle shaft 6. A tooth portion 10 a of the drive gear 10 extends in a direction orthogonal to the handle shaft 6, and the rotor 3 is prevented from rotating. A fixed pinion gear 12 is engaged. Further, a spool shaft 5a supporting the spool 5 is inserted into the pinion gear 12, and a known oscillating mechanism 15 is engaged with the rear end of the spool shaft 5a, so that the winding operation of the handle 8 is performed. Accordingly, the spool shaft 5a is reciprocated in the front-rear direction.

  A pair of support arms 3a are formed on the cylindrical portion of the rotor so as to face each other at an interval of about 180 °, and a bail support member in which a base end portion of the bail 3b is attached to each front end portion. 3c is supported in a reversible manner between the fishing line discharge position and the fishing line winding position. In this case, one base end portion of the bail 3b is attached to a fishing line guide portion 3d provided integrally with the bail support member 3c.

  With the configuration described above, when the handle 8 is wound up, the rotor 3 is rotationally driven via the handle shaft 6, the drive gear 10, and the pinion gear 12, and the spool 5 is moved back and forth via the oscillating mechanism 15. Therefore, the fishing line is evenly wound around the spool 5 via the fishing line guide 3d. When releasing the fishing line, the bail support member 3c is reversed from the fishing line take-up position shown in FIG. 1 to the fishing line releasing position to remove the fishing line from the fishing line guide portion 3d and swing the fishing rod down.

Next, with reference to FIGS. 3 to 5, the structure of the handle shaft in which the handle shaft and the drive gear are integrated will be described in detail.
The handle shaft 6 is formed by cutting a metal material such as stainless steel (for example, SUS303, SUS304, etc.), for example, and the drive shaft is inserted into the mold in the state where the handle shaft 6 formed in this way is inserted. The handle shaft 6 and the drive gear 10 are integrated by die-casting 10. In this case, the handle shaft 6 and the drive gear 10 are preferably formed of different materials. That is, by joining different kinds of metals, it is possible to improve the vibration damping property, and a moist take-up feeling can be obtained, thereby preventing the vibration of the fish hitting the fishing rod from being disturbed.

  Specifically, since the handle 8 is screwed into the handle shaft 6 as described above, it is preferable to use a high-strength material. For example, as the metal material having such characteristics, stainless steel (specific gravity) 7.8, linear expansion coefficient of 10 to 17 (× 10 −6 / ° C.)) is used. On the other hand, for the drive gear 10 to be die-cast, it is preferable to use a material that can be reduced in weight as much as possible in relation to the handle shaft. For example, as a metal material having such characteristics, an aluminum alloy for die casting (specific gravity) 2.7, linear expansion coefficient 23 (× 10 −6 / ° C.)) and zinc alloy (specific gravity 6.4 to 6.8, linear expansion coefficient 26 to 30 (× 10 −6 / ° C.)) are used. It is done.

  That is, the drive gear 10 to be die-cast is made of a material having a specific gravity smaller than that of the handle shaft 6 and a large linear expansion coefficient, so that the handle shaft is wound while increasing the strength of the handle shaft as described above. The feeling can be improved, and furthermore, the overall weight can be reduced as much as possible.

  In the handle shaft 6, through holes 6 b are formed in advance (at a plurality of locations) at approximately 90 ° intervals (equal intervals) along the circumferential direction at positions where the drive gear 10 is die-cast. Further, in the present embodiment, the handle shaft 6 is formed with a shaft hole 6c in the axial direction so that the weight can be further reduced, and the through hole 6b intersects the shaft hole 6c. It is formed as follows. The handle shaft 6 having the screw portion 6a, the through hole 6b, and the shaft hole 6c can be formed by cutting one rod-shaped body in advance (the rod-shaped body is generally It is a drawn material and is stronger than cast material). In this case, no ring-shaped protrusions are formed on the surface of the handle shaft, and protrusions at a predetermined interval are not formed along the circumferential direction, so that cutting can be easily performed. Note that the outer peripheral surface of the handle shaft 6 may be knurled according to the position at which the drive gear 10 is die-cast. By performing knurling in this way, it is possible to increase the bonding strength with the drive gear to be molded.

  As described above, the drive gear 10 is die-cast with the handle shaft 6 that has been cut in advance inserted in the mold, and therefore, as shown in FIG. In this state, the material of the drive gear 10 is filled (a part of the drive gear 10 is filled in the through hole 6b).

  In this way, by filling a part of the drive gear 10 into the plurality of through holes 6b, the anchor effect is enhanced, and the joint strength between them can be improved. In particular, since the through holes are formed at equal intervals along the circumferential direction, it is possible to exhibit a stable bonding strength in the axial direction and the circumferential direction. Further, in the case of a through hole, there is no extreme taper like a hole that does not penetrate (in the case of a hole, the shape is usually the same as the shape of the tip of the drill), so a reliable anchor effect can be obtained.

  In addition, as described above, even if a high-strength material having a high specific gravity is used as the handle shaft, the joint portion is not a protrusion but a through hole 6b, thereby reducing the overall weight while maintaining the joint strength. It becomes possible. Further, in order to reduce the weight as a whole, as described above, even if a low specific gravity material (a low specific gravity material has a large linear expansion coefficient and a large thermal shrinkage after molding) is used for the drive gear 10 as described above. By forming the hole 6b, it is possible to increase the bonding area between the two as much as possible, and even if there is such heat shrinkage, it is possible to suppress a decrease in bonding strength.

Next, an example of a manufacturing method in which the drive gear 10 is integrated with the handle shaft 6 will be described with reference to FIGS.
Initially, the handle shaft 6 cut as shown in FIG. 5 is inserted into the die casting molds 30 and 31. The molds 30 and 31 are configured to be in contact with each other, and are formed with longitudinal recesses 30 a and 31 a that extend in the axial direction and set the handle shaft 6. Of these, a convex portion (pin) 30 b that fits into the shaft hole 6 c of the handle shaft 6 is formed in the longitudinal concave portion 30 a of one mold 30. The convex portion 30b extends to a portion that closes the openings of the plurality of through holes 6b formed in the set handle shaft 6 so that the die-cast material does not enter the shaft hole 6c.

  Recesses 30c and 31c are formed in opposing portions of the molds 30 and 31, respectively, so that the drive gear 10 provided with the teeth 10a is formed. As shown in FIG. When the molds 30 and 31 are interviewed, the concave portions 30c and 31c become the outer shape of the drive gear, and the die-cast material (the aluminum alloy or zinc alloy that becomes a lower specific gravity material than the handle shaft as described above) inside the drive gear. Is injected. In this case, the injection gate 33 for injecting the die-cast material is on the outer peripheral side of the portion for molding the drive gear, and a plurality of such injection gates 33 may be provided on the outer peripheral side of the drive gear. .

  Next, in a state where the handle shaft 6 is inserted into the molds 30 and 31, a die-cast material is injected through the injection gate 33 (see FIG. 7). After the die-cast material is cooled and solidified, both the molds 30 are used. , 31 are separated (see FIG. 8). After that, the die cast material 33a remaining in the injection gate portion is cut and subjected to surface treatment to form the handle shaft 6 in which the drive gear 10 having the above-described functions and effects is integrated. The

  In the manufacturing method described above, the die casting material is injected on the outer peripheral side of the drive gear. However, the position where such an injection gate is provided can be appropriately modified.

The handle shaft 6 in which the drive gear 10 as described above is integrated can have various shapes. For example, the handle shaft 6 does not form a shaft hole over its entire length, but may have a partially solid structure as shown in FIG.
In this embodiment, one end (right handle side end) of the handle shaft 6 has a solid structure. For example, in a case where the screw diameter of the region where the male screw portion 6a ′ cannot be increased, by making this portion a solid structure, the diameter can be reduced while maintaining the strength. In the present embodiment, an example in which one end portion has a solid structure is shown, but, of course, both end portions may have a solid structure.

The embodiment shown in FIG. 10 shows an example in which the handle shaft 6A in which the drive gear 10 is integrated has a solid structure over the entire length.
In a structure in which the outer diameter of the handle shaft 6 cannot be increased, such a solid structure is formed, and by forming a through-hole 6b ′ penetrating therein, the handle shaft can be reduced in diameter while maintaining strength. It becomes possible.

The embodiment shown in FIG. 11 shows an example in which a die-cast material is filled in the entire shaft hole 6a of the handle shaft 6 in which the drive gear 10 is integrated.
In such a structure, the joint strength between the drive gear 10 and the handle shaft 6 is further increased, and the joint area between the two is increased. Therefore, the vibration damping effect can be enhanced, and a moist winding feeling can be obtained. Be able to. It is also possible to reduce the diameter of the handle shaft 6 while maintaining the strength.

The handle shaft 6 in which such a drive gear is integrated can be easily manufactured by removing the protrusions (pins) 30b of the mold 30 shown in FIGS. Further, in the case of such a structure, it is also possible to manufacture by injecting a die-cast material from the shaft hole 6c portion.
The structure of the first embodiment shown in FIG. 3 may be manufactured by die-casting the drive gear as shown in FIG. 11 and then removing the die-cast material remaining in the shaft hole 6c by cutting. good.

The embodiment shown in FIG. 12 shows an example in which a portion where the drive gear 10 is molded is filled with a die-cast material in the shaft hole 6a of the handle shaft 6 with which the drive gear 10 is integrated to form a solid structure. Yes.
According to such a structure, it is possible to efficiently increase the joint strength between the drive gear and the handle shaft while reducing the weight of the handle shaft 6.

  A handle shaft in which such a drive gear is integrated can be manufactured by providing convex portions (pins) of a predetermined length in the longitudinal concave portions 30a and 31a of the molds 30 and 31, respectively. Is possible. Alternatively, as shown in FIG. 11, after the drive gear is die-cast, the die-cast material remaining in the shaft hole 6c may be removed by cutting from both sides.

The embodiment shown in FIG. 13 shows an example in which the structure shown in FIG. 12 is efficiently manufactured.
That is, when the handle shaft 6B is cut, the solid portion 6d is left without cutting the intermediate region, and the convex portion (pin) 30b shown in FIG. Is possible. In addition, it is possible to manufacture by filling a die casting material without cutting such a pin and then performing a predetermined range of cutting from the opening 6e side.

  In each of the embodiments described above, the through holes 6b formed in advance in the handle shaft 6 are equally formed at four locations. However, a plurality of such through holes may exist so that the load is distributed. good. However, if the number of through-holes is too small, the load applied to one location becomes too large. Conversely, if the number is too large, the handle shaft becomes too large or one hole diameter becomes too small, making it difficult to fill the die-cast material. turn into. For this reason, it is desirable that the number of through holes 6b formed in advance by cutting is set to 4 to 12 at regular intervals along the circumferential direction. Further, such through holes may be formed in a plurality of rows along the longitudinal direction of the handle shaft.

  Furthermore, the shape of the through hole 6b described above is desirably a circular cross section so that the processing is easy and the die-cast material is reliably filled.

As mentioned above, although one Embodiment of the spinning reel for fishing which concerns on this invention was described, this invention is not limited to above-described embodiment, It can change variously.
For example, the material forming the handle shaft 6 and the drive gear 10 may be the same material (for example, the handle shaft 6 is A7075 and the drive gear 10 is ADC 12), and can be modified as appropriate. Further, the handle shaft 6 may have an internal thread portion at the end on which the handle 8 is mounted, and the handle shaft 6 may be formed with components other than the drive gear by cutting in advance. good. Furthermore, the above-described handle shaft in which the drive gear is integrated can be applied to various types of fishing spinning reels.

DESCRIPTION OF SYMBOLS 1 Fishing spinning reel 2 Reel body 3 Rotor 6, 6A, 6B Handle shaft 6b Through-hole 8 Handle 10 Drive gear 12 Pinion gear 30, 31 Mold

Claims (3)

A handle shaft mounted on a handle that is rotatably supported by the reel body and is wound up; and a drive gear that meshes with a pinion gear that transmits rotation of the handle to the rotor and is integrated with the handle shaft. In fishing spinning reels,
The handle shaft is formed by cutting a metal material,
The drive gear is integrated with the handle shaft by die casting with the handle shaft inserted into a mold,
The handle shaft is provided with a plurality of through-holes penetrating inside at a portion where the drive gear is joined, and a part of the drive gear is filled in the through-hole. Spinning reel.   2. The fishing spinning reel according to claim 1, wherein the die-cast drive gear is made of a material having a specific gravity smaller than that of the handle shaft and a large linear expansion coefficient.   3. The fishing spinning reel according to claim 1, wherein the through hole is circular and is formed in an equal number of 4 to 12 in the circumferential direction of the handle shaft.

Images