JP3604104B2 - Spinning reel spool - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spool for a spinning reel, and more particularly to a spool that is attached to a spool shaft so as to be relatively non-rotatable.
[0002]
[Prior art]
In general, a spinning reel has a reel body, a rotor rotatably supported by the reel body, and a spool around which fishing line is wound. Furthermore, the spinning reel has a drag mechanism that allows the spool to rotate when a force exceeding a predetermined level acts while fixing the spool so that it cannot rotate with respect to the reel body. In a rear drag type spinning reel in which the drag mechanism is provided at a rear portion of the reel body, the spool and the spool shaft are connected to each other by a locking pin so that they cannot rotate relative to each other.
[0003]
When the relative rotation between the spool and the spool shaft is disabled by the locking pin, there is a gap from the manufacturing point between the locking pin and the engaging groove provided on the spool. Occasionally rattling occurs. In order to solve this problem, there is known a spinning reel in which an elastic member that presses against the engaging pin is interposed between the engaging pin and the engaging groove of the spool (Japanese Utility Model Laid-Open No. 5-1768).
[0004]
However, the spinning reel of Japanese Utility Model Laid-Open No. 5-1768 has a structure in which a load is applied so that the elastic member is compressed between the locking pin and the engagement groove of the spool regardless of the direction in which the spool rotates. Has become. Therefore, the life of the elastic member cannot be ensured unless an elastic member having high durability is used.
[0005]
As a structure for solving this problem, there is known a structure disclosed in Japanese Utility Model Laid-Open No. 6-68447 in which a load is not applied to the elastic member at the time of yarn winding. Here, an elastic member is not interposed between the engagement pin of the spool and the engagement pin that is pressed against at the time of winding the yarn, and the elastic member is provided only between the engagement pin and the engagement groove of the spool where no force is applied at the time of winding the yarn. Is placed.
[0006]
[Problems to be solved by the invention]
In the case where a person who buys a reel rotates the spool in a direction opposite to the line payout direction at a store, a torque larger than the torque in the normal use of the spinning reel is transmitted between the spool and the spool shaft. . The conventional structure has a structure in which the elastic member does not receive a load during winding of the yarn (rotation of the spool in the yarn feeding direction). However, when the spool rotates in the direction opposite to the line let-out direction, the amount of rotation before the relative rotation becomes impossible is larger than that of the conventional product having a gap due to the deformation of the elastic member. This is because it is necessary to interpose an appropriate elastic member, so that the gap between the locking pin and the engagement groove of the spool must be larger than that of the conventional product by the thickness of the elastic member.
[0007]
Further, when the elastic member is formed integrally with the spool to reduce the number of parts, the elastic portion of the spool deforms beyond the elastic range when rotating in the direction opposite to the yarn winding direction, and exceeds the allowable value. The elastic portion may be plastically deformed under stress.
[0008]
An object of the present invention is to suppress the amount of rotation until the spool and the spool shaft become unable to rotate relative to each other during rotation of the spool, and suppress the deformation of the elastic member to reduce the stress applied to the elastic member.
[0009]
[Means for Solving the Problems]
A spool of a spinning reel according to a first aspect of the present invention is a spool of a spinning reel which is non-rotatably fixed to a tip of a spool shaft of the spinning reel by a locking pin which penetrates the spool shaft in a radial direction. A flange, a boss, and an elastic member. The fishing line is wound around the outer periphery of the bobbin trunk. The skirt portion is formed at the rear of the bobbin trunk with a large diameter integrally with the bobbin trunk. The flange portion is formed at the front of the bobbin trunk with a larger diameter than the bobbin trunk. The boss is fixed to the inner peripheral side of the bobbin trunk. A shaft mounting hole is formed in the boss so that the spool shaft passes through the center, and a pair of first and second shaft mounting holes are opposed to each other with the shaft mounting hole interposed therebetween so that a locking pin is locked to the rear end surface. A first engagement groove and a second engagement groove are formed. The elastic member is in pressure contact with the locking pin, and is interposed only on the side opposite to the side on which the load acts upon the rotation of the first engagement groove of the boss portion when the yarn is fed.
[0010]
In this spinning reel spool, a locking pin that penetrates the spool shaft in the radial direction is locked in the first engagement groove and the second engagement groove of the boss portion, so that the spool shaft and the spool cannot be relatively rotated. ing. Here, the elastic member is interposed between the first engagement groove and the second engagement groove and the engagement pin by pressing the engagement pin, and the engagement pin is engaged with the first engagement groove and the second engagement groove. Since it is biased toward the groove, rattling of the spool can be suppressed. In addition, since the elastic member is interposed only on the side opposite to the side on which the load is applied at the time of the yarn feeding rotation of the first engagement groove, the elastic member is elastic at the time of the yarn feeding rotation (the rotation direction at the time of winding the yarn on the spool). The member is not loaded. Furthermore, an elastic member is interposed only in the first engagement groove, and there is no elastic member in the second engagement groove. Thus, at the time of the reverse rotation of the yarn feeding rotation, after the elastic member is deformed by a certain amount, the locking pin and the second engagement groove are locked, and the rotation of the spool and the spool shaft becomes impossible. Transmission of torque between the shaft and the shaft is mainly performed between the locking pin and the second engagement groove. For this reason, the amount of rotation until the spool and the spool shaft become unable to rotate relative to each other during rotation of the spool is suppressed, and the deformation of the elastic member is suppressed, and the stress applied to the elastic member is reduced.
[0011]
The spinning reel spool according to a second aspect of the present invention is the spool according to the first aspect, wherein the elastic member is integrated with the boss portion only on a side opposite to a side on which a load is applied when the first engagement groove of the boss portion is rotated during the yarn feeding. It is an elastic piece provided with. In this case, since the elastic member is integral with the boss, the number of components can be reduced.
[0012]
The spinning reel spool according to a third aspect of the present invention is the spool according to the second aspect, wherein the elastic piece has a first engagement groove only on a side opposite to a side of the boss portion on which a load is applied at the time of the yarn feeding rotation of the first engagement groove. It is provided by forming a slit in the rear end face of the boss adjacent to the groove. In this case, rattling of the spool can be suppressed by a simple structure in which a slit is formed.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
In FIG. 1, a spinning reel 1 employing one embodiment of the present invention mainly comprises a reel body 2 having a handle 1a, a rotor 3 rotatably supported at the front of the reel body 2, and a rotor 3 And a spool 4 for winding the fishing line, which is disposed at the front of the fishing line.
[0014]
The reel body 2 has a body 2a, and an attachment portion 2b for attaching a spinning reel to a fishing rod is formed on an upper portion of the body 2a. A rotor drive mechanism 5 for rotating the rotor 3 and a level wind drive mechanism for uniformly winding the fishing line on the spool 4 by moving the spool 4 back and forth along the rotation axis are provided inside the body 2a. 6 are provided. Further, a cylindrical projection 2c is formed at a rear portion of the body 2a of the reel body 2, and a rear drag mechanism 7 is provided therein. A spool shaft 8 fixed to the spool 4 extends rearward so as to penetrate the rotor 3 and the inside of the body 2a, and a rear end portion thereof is engaged with a rear drag mechanism 7.
[0015]
The rotor drive mechanism 5 has a master gear 11 that rotates together with the shaft 10 to which the handle 1a is fixed, and a pinion gear 12 (tooth portions not shown) that mesh with the master gear 11. The pinion gear 12 is formed in a cylindrical shape, and its front portion extends through the center of the rotor 3 toward the spool 4. The pinion gear 12 is rotatably supported by a ball bearing 13 supported by the body 2a. The spool shaft 8 penetrates the center of the pinion gear 12 movably in the front-rear direction along the rotation axis.
[0016]
The level wind drive mechanism 6 is a mechanism for transmitting the rotation of the shaft 10 to the spool shaft 8 as a forward and backward movement. The level wind drive mechanism 6 includes a screw shaft 21 disposed below the spool shaft 8, a slider 22 that moves in the front-rear direction along the screw shaft 21, and a guide shaft 23 disposed below the screw shaft 21. And an intermediate gear 24 fixed to the tip of the screw shaft 21 and meshing with the pinion gear 12. The screw shaft 21 and the guide shaft 23 are arranged in parallel with the spool shaft 8. A spiral groove is formed on the outer periphery of the screw shaft 21, and an engaging member (not shown) that engages with the groove is provided inside the slider 22.
[0017]
The rear drag mechanism 7 mainly includes a cylindrical bush 61, a friction engagement portion 66 including a first friction plate 67 and two second friction plates 68, a coil spring 70 for friction pressing, It comprises a support member 71 and a fixed cap 72. The bush 61 is fitted on the outer periphery of the rear portion of the spool shaft 8 and is not normally supported by the cylindrical projection 2c, and is only engaged with the cylindrical projection 2c when a load is applied. The relative rotation is regulated by the frictional engagement of. The fixing cap 72 is screwed into a thread groove formed on the outer circumference of the cylindrical projection 2c from the outer circumference side, and positions the support member 71 at a predetermined position. As described above, by adjusting the amount of tightening of the fixed cap 72, the pressing force on each plate constituting the frictional engagement portion 66 can be changed, and the drag force can be adjusted.
[0018]
The rotor 3 has a cylindrical portion 30 and a first arm portion 31 and a second arm portion 32 provided on the sides of the cylindrical portion 30 so as to face each other. The cylindrical portion 30 and the arms 31 and 32 are integrally formed. A front wall 33 is formed at the front of the cylindrical portion 30, and a boss 33a is formed at the center of the front wall 33. A through hole is formed in the center of the boss 33a, and the front portion of the pinion gear 12 and the spool shaft 8 pass through the through hole. Further, a screw is formed at the tip of the pinion gear 12 that penetrates through the front wall 33, and a nut 34 is screwed onto the screw. The pinion gear 12 and the rotor 3 are fixed so that they cannot rotate relative to each other.
[0019]
A first bail support member 40 is swingably mounted inside the tip (front side) of the first arm 31, and a second bail support member 43 is swingable inside the tip of the second arm 32. Attached to. A line roller 41 for guiding the fishing line to the spool 4 and a fixed shaft cover 42 thereof are provided at the tip of the first bail support member 40. A bail 45 curved in a U-shape extends toward the second bail support member 43 from the fixed shaft cover 42.
[0020]
The spool 4 is disposed between the first arm 31 and the second arm 32 of the rotor 3. The spool 4 includes a tubular skirt portion 4a formed on the rear end side, a bobbin trunk portion 4b formed on the front side of the skirt portion 4a, and a flange portion 4c formed on a distal end of the bobbin trunk portion 4b. have. The cylindrical portion 30 of the rotor 3 is disposed inside the skirt portion 4a.
[0021]
A boss 51 is formed at the center of the bobbin trunk 4b, as shown in FIGS. The tip of the spool shaft 8 is inserted into a shaft mounting hole 51e provided at the center of the boss 51. A pair of first and second engagement grooves 51a and 51b that are long in the radial direction are formed on the end surface of the boss 51. The first and second engagement grooves 51a, 51b are formed to face each other with the shaft mounting hole 51e interposed therebetween. A slit 51c is formed in the boss 51 adjacent to the first engagement groove 51a of the pair of first and second engagement grooves 51a and 51b, and one end is provided between the first engagement groove 51a and the slit 51c. Are fixed to the boss 51, and a plate-like elastic piece 51d whose other end is a free end remains. The slit 51c is adjacent to a side surface of the first engagement groove 51a opposite to the side surface of the first engagement groove 51a in which the locking pin 52 is locked when the yarn is fed. A locking pin 52 for fixing the spool 4 and the spool shaft 8 is locked in the first and second engagement grooves 51a and 51b. The locking pin 52 penetrates the spool shaft 8 in the radial direction. Although a gap exists between the second engagement groove 51b and the locking pin 52 for assembly, the gap between the first engagement groove 51a and the locking pin 52 is formed by the elastic piece 51d. Since there is an elastic deformation so as to press the 52 toward the first engagement groove 51a, there is no gap.
[0022]
The tip of the spool shaft 8 projects from the bobbin trunk 4b. A one-touch button 54 is attached to the tip of the spool shaft 8. A one-touch button collar 55 is arranged around the one-touch button 54. The one-touch button collar 55 is screwed into the bobbin trunk 4 b of the spool 4 to lock the one-touch button 54.
[0023]
Next, the operation of the spinning reel 1 in the present embodiment will be described.
[0024]
At the time of winding the yarn, the bail 45 is raised to the yarn winding posture. When the handle 1a is rotated in this state, the torque is transmitted to the pinion gear 12 via the shaft 10 and the master gear 11. The torque transmitted to the pinion gear 12 is transmitted to the rotor 3 via a front portion of the pinion gear 12. On the other hand, the torque of the shaft 10 is converted by the level wind mechanism 6 into a forward and backward movement with respect to the spool shaft 8. That is, the spool 4 performs a reciprocating operation. As a result, the yarn guided to the spool 4 by the bail 45 and the line roller 41 is uniformly wound around the bobbin trunk 4b in the front-rear direction.
[0025]
If the fish pulls in the thread with a large force while the thread is being wound by the handle 1a, the spool 4 tends to be rotated in the line payout direction by the force. This force is transmitted to the bush 61 via the spool shaft 8. When this force exceeds the frictional force of the frictional engagement portion 66, the spool 4 is rotated. That is, when the tension of the yarn exceeds a certain value, the spool 4 that is relatively non-rotatable by the spool shaft 8 and the locking pin 52 rotates so as to pay out the yarn.
[0026]
As described above, when the spool 4 rotates in the line feeding direction, the locking pin 52 fixed to the spool shaft 8 locks the first engaging groove 51a of the spool 4 on the side opposite to the slit 51c side. Then, the spool 4 and the spool shaft 8 rotate integrally.
[0027]
On the other hand, when the customer rotates the spool 4 in a direction opposite to the line feeding direction at a fishing tackle store or the like, the side surface of the first engagement groove 51a on the slit 51c side is in contact with the locking pin 52. Since the elastic piece 51d undergoes elastic bending deformation, relative rotation between the spool 4 and the spool shaft 8 is not disabled. Therefore, after the spool 4 and the spool shaft 8 relatively rotate by the gap between the second engagement groove 51b and the engagement pin 52, the engagement pin 52 is engaged with the second engagement groove 51b, and the spool 4 and the spool The shaft 8 cannot rotate relatively. At this time, the elastic piece 51d is elastically deformed by the gap between the second engagement groove 51b and the locking pin 52 in addition to the initial deformation at the time of assembling. There is no. Here, the torque transmitted between the spool 4 and the spool shaft 8 is mainly received by the locking portion between the second engagement groove 51b and the locking pin 52, and the torque is transmitted between the first engagement groove 51a and the locking pin. The locking portion with 52 receives only the torque corresponding to the amount of elastic deformation of the elastic piece 51d corresponding to the gap between the second engaging groove 51b and the locking pin 52.
[0028]
[Other embodiments]
(A) The spool 4 is not limited to the one applied to the spinning reel 1 provided with the rear drag mechanism 7, but may be any spinning reel having a spool attached to the spool shaft so as to be relatively non-rotatable. Is also applicable.
[0029]
(B) As shown in FIG. 5, instead of forming a slit 51c and an elastic piece 51d adjacent to the first engagement groove 51a in the boss 51, a play between the boss 51 and the first engagement groove 51a is prevented. It is also possible to interpose an elastic member 60 such as rubber.
[0030]
【The invention's effect】
When the spool according to the present invention is used, the elastic member is interposed only on the side of the pair of the first engagement groove and the second engagement groove that is opposite to the side on which the load acts upon the rotation of the first engagement groove when the yarn is fed. In the reverse rotation with the line reeling-out rotation, after a certain amount of deformation of the elastic member, the locking pin and the second engagement groove are locked, and the rotation of the spool and the spool shaft becomes impossible, Transmission of torque between the spool and the spool shaft is mainly performed between the locking pin and the second engagement groove. Therefore, the amount of rotation until the spool and the spool shaft become unable to rotate relative to each other during rotation of the spool is suppressed, and the deformation of the elastic member is suppressed, and the stress applied to the elastic member is reduced.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional view of a spinning reel employing one embodiment of the present invention.
FIG. 2 is a partial vertical sectional view of a spool.
FIG. 3 is a rear view of the spool.
FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;
FIG. 5 is a diagram corresponding to FIG. 3 of another embodiment.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 spinning reel 2 reel body 3 rotor 4 spool 4b bobbin trunk 8 spool shaft 51 boss 51a first engagement groove 51b second engagement groove 51c slit 51d elastic piece 52 locking pin 60 elastic member

Claims (3)

A spinning reel spool that is fixed non-rotatably to a tip of a spool shaft of the spinning reel by a locking pin that radially penetrates the spool shaft,
A bobbin trunk around which the fishing line is wound,
A skirt portion formed in a large diameter integrally with the bobbin trunk at a rear portion of the bobbin trunk,
A flange portion formed at a front portion of the bobbin trunk with a larger diameter than the bobbin trunk,
A shaft mounting hole is formed at the center so that the spool shaft penetrates, and a pair of first engagement grooves and a pair of first engaging grooves facing each other with the shaft mounting hole interposed therebetween so that the locking pin is locked at a rear end surface. A boss portion formed with a second engagement groove and fixed to an inner peripheral side of the bobbin trunk portion;
The yarn feeding load during rotation of the first engaging groove is interposed only on the side opposite the side which acts, an elastic member for pressing the locking pin,
Spinning reel spool with 2. The spinning reel spool according to claim 1, wherein the elastic member is an elastic piece provided integrally with the boss only on the opposite side of the first engagement groove. 3. The said elastic piece is provided only by the said other side of the said 1st engagement groove by providing a slit in the rear end surface of the said boss | hub part adjacent to the said 1st engagement groove, The Claim 2 characterized by the above-mentioned. Spinning reel spool.

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