JP6968640B2 - Fishing reel spool attachment / detachment mechanism and single bearing reel - Google Patents

Description

The present invention relates to a fishing reel spool attachment / detachment mechanism and a single bearing reel in which the spool of the fishing reel can be attached / detached to / from the spool shaft.

It is known that fishing reels such as single bearing reels and spinning reels are provided with a spool attachment / detachment mechanism that allows the spool to be attached / detached with one touch without using a tool. For example, the spool attachment / detachment mechanism of Patent Document 1 includes a first bearing as a protrusion, an attachment / detachment member, an urging member, and a lid member as a positioning member. The first bearing has a first side surface and a second side surface. The detachable member has a regulating portion and a pressing operation portion. The regulating portion engages with the second side surface facing each other. The detachable member can be moved in the radial direction between the regulation position where the regulation portion faces the second side surface and the separation position where the regulation portion separates from the first bearing. The urging member urges the detachable member toward the regulated position. The lid member positions the detachable member urged to the regulated position at the regulated position.

Japanese Unexamined Patent Publication No. 2014-30372

The spool attachment / detachment mechanism of Patent Document 1 is difficult to assemble because it is necessary to assemble a coil spring that urges the attachment / detachment member toward the regulated position from the radial direction of the spool. Due to the need to secure space for assembling the spool attachment / detachment mechanism, it is difficult to reduce the size in the radial direction. Then, when the coil spring is incorporated, the coil spring may be deformed.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to facilitate the assembly of a spool attachment / detachment mechanism for a fishing reel.

The spool attachment / detachment mechanism according to the first aspect of the present invention is a spool attachment / detachment mechanism for a fishing reel in which the spool of the fishing reel can be attached / detached to / from the spool shaft, and the radius of the spool shaft from the open end of the spool shaft. Facing the second side surface with a protrusion having a first side surface protruding in the direction toward the open end face of the spool shaft and a second side surface facing the side of the support portion opposite to the open end face of the spool shaft. A regulating portion having a urethane surface and capable of engaging with the second side surface, and an operating portion that moves the regulating portion in a direction to separate from the protrusion when pressed toward the rotation axis of the spool are formed. It is provided with at least one detachable member to be mounted on the spool, an annular spring that urges the restricting portion toward the rotation axis in the radial direction of the spool, and a holding member that holds the detachable member at the spool mounting position. ..

Preferably, the detachable member is attached to a slit penetrating from the outer peripheral surface to the inner peripheral surface of the tubular boss portion provided on the thread winding body portion of the spool, and the spool is attached to the detachable member engaged with the second side surface. Axial movement is regulated by slits.

Preferably, the holding member is fixed to the tip of the spool in the rotation axis direction to hold the detachable member in the spool mounting position.

Preferably, the protrusion is a rolling bearing mounted axially immovably on the open end of the spool shaft, and the second side surface is a surface facing the support portion of the outer ring of the rolling bearing.

Preferably, the pair of detachable members are attached to the spool so as to radially face each other with the rotation shaft of the spool interposed therebetween, and the annular spring urges the restricting portions of the pair of detachable members toward each other.

More preferably, the restricting portion and the operating portion of each detachable member are arranged at positions facing each other with the rotating shaft of the spool interposed therebetween, and the detachable member has the regulating portion and the operating portion outside the radial direction of the rotating shaft of the spool, respectively. It has a connecting portion that is curved and connected in the direction, and the annular spring engages the radial outer side of the regulating portion and urges the regulating portions of the pair of detachable members toward each other.

Alternatively, the restricting portion and the operating portion of each detachable member are arranged at positions facing each other across the rotation shaft of the spool, and the detachable member has the regulating portion and the operating portion respectively located outside the radial direction of the rotation shaft of the spool. The annular spring may have a connecting portion that is curved and connected, and the annular spring may be engaged in the radial inside of the operating portion to urge the operating portions of the pair of detachable members so as to be separated from each other.

Preferably, the annular spring is made of a single wire.

The detachable member and the annular spring may be integrally formed.

Preferably, the regulating portion has a regulating surface arranged to face the second side surface and an inclined surface arranged on the opposite side of the regulating surface and increasing in distance from the regulating surface toward the outside in the radial direction. Have.

The single bearing reel according to the second aspect of the present invention is a reel body, a spool shaft that is cantilevered and supported by the reel body, and a protrusion that is prevented from coming off at the open end of the spool shaft. The 1st bearing, the 2nd bearing arranged on the cantilever support side of the 1st bearing, the thread winding body, and the 1st bearing integrally formed with the thread winding body and arranged on the inner peripheral side of the thread winding body. It also includes a spool for thread winding having a tubular boss portion rotatably supported by a second bearing on a spool shaft, and a spool attachment / detachment mechanism according to a first aspect.

According to the spool attachment / detachment mechanism of the present invention, since one annular spring can be assembled by simply fitting one annular spring as a urging member from the tip end side of the spool, the spool attachment / detachment mechanism of the fishing reel can be easily assembled.

Front view of the single bearing reel according to the first embodiment of the present invention. Rear view of the single bearing reel according to the first embodiment Sectional drawing of the single bearing reel which concerns on Embodiment 1. Sectional drawing of the single bearing reel which concerns on Embodiment 1. Front view of the detachable member according to the first embodiment Perspective view of the detachable member according to the first embodiment Perspective view of the annular spring according to the first embodiment Perspective view of a pair of detachable members according to the first embodiment Sectional drawing of the spool attachment / detachment mechanism which concerns on Embodiment 1. Sectional drawing of the spool attachment / detachment mechanism at the time of a pressing operation which concerns on Embodiment 1. Perspective view of the annular spring according to the second embodiment of the present invention. Sectional drawing of the spool attachment / detachment mechanism which concerns on Embodiment 2. Sectional drawing of the spool attachment / detachment mechanism which concerns on Embodiment 3 of this invention Sectional drawing of the spool attachment / detachment mechanism at the time of a pressing operation which concerns on Embodiment 3. Sectional drawing of the spool attachment / detachment mechanism which concerns on Embodiment 4 of this invention Cross-sectional view of the spool attachment / detachment mechanism when the annular spring according to the fourth embodiment is attached. Perspective view showing an example of the annular spring according to the fourth embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the figure, the same or equivalent parts are designated by the same reference numerals.

Embodiment 1.
FIG. 1 is a front view of a single bearing reel according to the first embodiment of the present invention. The single bearing reel 100 includes a reel main body 1 and a spool 3 rotatably mounted on the reel main body 1 and around which a fishing line is wound. The reel main body 1 is composed of a circular dish-shaped frame 10 and a rod mounting portion 12 for mounting a fishing rod RD. The frame 10 has a smaller diameter than the spool 3. The spool 3 can be rotated by operating the handle handle 54 provided on the spool 3. The spool 3 is provided with a balance weight 56 arranged at a position facing the handle handle 54 with the rotation shaft interposed therebetween.

Generally, the surface on which the fishing line of the spool 3 is wound is composed of a rotating surface. When a curve on a plane is rotated around a straight line on the plane to form a surface of revolution, the straight line is called a rotation axis. The rotation shaft of the spool 3 is a rotation shaft for forming a rotation surface of the surface on which the fishing line of the spool 3 is wound.

The spool 3 is provided with a pair of detachable members 30 facing each other with the rotation shaft interposed therebetween. The spool 3 can be removed from the reel body 1 by operating the pressing operation portion 42 of the detachable member 30 so as to bring them closer to each other toward the rotation axis. The detachable member 30 rotates together with the spool 3.

FIG. 2 is a rear view of the single bearing reel according to the first embodiment. The rod mounting portion 12 has a fixing portion 12a, an arm portion 12b, and a mounting leg portion 12c. The arm portion 12b is integrally formed with the fixing portion 12a. The arm portion 12b extends radially outwardly from the fixing portion 12a and then curves to connect to the mounting leg portion 12c arranged radially outward of the spool 3. The mounting leg portion 12c is integrally formed with the arm portion 12b. The mounting leg portion 12c is arranged in the front-rear direction at the tip of the arm portion 12b and can be mounted on the fishing rod RD.

The fixing portion 12a has a ring shape having an inner peripheral surface 12d that fits on the outer peripheral surface 14g of the fitting convex portion 14d formed on the frame 10. The fixing portion 12a has a plurality of (for example, four) fixing holes 12e arranged at equal intervals in the circumferential direction. The bolt member 16 inserted through the fixing hole 12e is screwed into the screw hole 14e formed in the frame 10, and the rod mounting portion 12 is fixed to the frame 10. The fitting convex portion 14d is arranged at the center of the second position C2 eccentric with respect to the first position C1 at the center of the frame 10. The first position C1 coincides with the rotation axis of the spool 3.

For example, the bolt member 16 is screwed from the rod mounting portion 12 side into every other four screw holes 14e among the eight screw holes 14e, and the rod mounting portion 12 is fixed to the frame 10. The position for fixing the rod mounting portion 12 to the frame 10 can be changed in eight ways, and the distance between the fishing rod RD mounted on the rod mounting portion 12 and the rotation axis of the spool 3 can be changed in eight stages.

FIG. 3 is a cross-sectional view of the single bearing reel according to the first embodiment. FIG. 3 shows a cross section taken along the cutting line III-III of FIG. The spool 3 is rotatably supported by a spool shaft 2 fixed to the frame 10.

The spool shaft 2 is cantilevered and supported by the frame 10. The supported end is called the support, and the other unsupported end is called the open end. The end face of the open end is an open end face. A first bearing 4 is fitted to the open end portion of the spool shaft 2, and a second bearing 5 is fitted to the side of the support portion. The inner ring 4a of the first bearing 4 and the inner ring 5a of the second bearing 5 are fixed to the spool shaft 2. The spool 3 is fitted to the outer ring 4b of the first bearing 4 and the outer ring 5b of the second bearing 5, and is rotatably supported with respect to the spool shaft 2. The spool attachment / detachment mechanism 6 allows the spool 3 to be attached to or detached from the spool shaft 2. The above-mentioned attachment / detachment member 30 constitutes the spool attachment / detachment mechanism 6.

<Structure of reel body>
The frame 10 has a mounting portion 14 to which the spool shaft 2 is cantilevered and a rod mounting portion 12 is mounted, and a bite prevention portion 15 formed on the edge portion. The mounting portion 14 has a first mounting portion 14a to which the rod mounting portion 12 is mounted, and a second mounting portion 14b for mounting the spool shaft 2.

The first mounting portion 14a has an annular arranging portion 14c in which the rod mounting portion 12 is arranged, and a fitting convex portion 14d protruding circularly from the arranging portion 14c. The arrangement portion 14c and the fitting convex portion 14d project from the arrangement portion 14c on the side opposite to the direction in which the spool shaft 2 extends. As shown in FIG. 2, a plurality of (for example, eight) screw holes 14e for fixing the rod mounting portion 12 to the frame 10 are equidistantly spaced in the circumferential direction around the second position C2 in the arrangement portion 14c. Is formed in.

The spool shaft 2 is mounted on the second mounting portion 14b. The second mounting portion 14b is provided so as to project from the fitting convex portion 14d in the direction in which the spool shaft 2 extends. The second mounting portion 14b is formed so as to project in a cylindrical shape with the first position C1, which is the axis of the spool shaft 2, as the center. At the center of the second mounting portion 14b, a female screw portion 14f to which the spool shaft 2 is screwed and fixed is formed. The female thread portion 14f is arranged in the center of the frame 10.

The bite prevention portion 15 is provided to prevent the fishing line from biting into the spool 3 of the reel body 1. The tip of the bite prevention portion 15 is arranged in the annular groove 36c provided in the first flange portion 36a of the spool 3. The bite prevention portion 15 is formed so as to be curved toward the annular groove 36c.

<Spool shaft configuration>
The spool shaft 2 is cantilevered and supported by the second mounting portion 14b. The spool shaft 2 has a first bearing mounting portion 2b having a female screw hole 2a formed at the tip thereof, a second bearing mounting portion 2c, a flange portion 2d, and a male screw portion 2e. The first bearing 4 is mounted on the first bearing mounting portion 2b, which is an open end portion. A retaining bolt 18 for retaining the first bearing 4 is screwed into the female screw hole 2a. The head portion 18a of the retaining bolt 18 is in contact with the inner ring 4a of the first bearing 4.

The second bearing mounting portion 2c has a larger diameter than the first bearing mounting portion 2b, and the second bearing 5 is mounted on the side of the support portion thereof. The inner ring 4a of the first bearing 4 and the inner ring 5a of the second bearing 5 are in contact with the positioning spacer 20 arranged between them. As a result, the inner ring 4a of the first bearing 4 and the inner ring 5a of the second bearing 5 are positioned. The outer diameter of the second bearing 5 is larger than the outer diameter of the first bearing 4.

The flange portion 2d has a larger diameter than the second bearing mounting portion 2c, positions the second bearing 5, and abuts on the second mounting portion 14b to position the spool shaft 2 in the axial direction. The inner ring 5a of the second bearing 5 is restricted from moving in the axial direction by the flange portion 2d and the spacer 20. The male screw portion 2e, which is a support portion, is screwed into the female screw portion 14f, and the spool shaft 2 is fixed to the second mounting portion 14b.

The first bearing 4 also functions as a protrusion of the spool attachment / detachment mechanism 6. The first bearing 4 is a protrusion that protrudes from the open end of the spool shaft 2 in the radial direction of the spool shaft 2. The outer ring 4b of the first bearing 4 has a first side surface 4c facing the open end surface and a second side surface 4d facing the support portion on the side opposite to the first side surface 4c.

<Spool configuration>
The spool 3 is an annular member made of a light metal such as an aluminum alloy, and is formed by machining. The spool 3 has a tubular thread winding body portion 35, a first flange portion 36a, and a second flange portion 36b, which are integrally formed. These may be composed separately. As described above, an annular groove 36c into which the biting prevention portion 15 enters is formed on the outer surface of the first flange portion 36a on the outer peripheral side. As shown in FIG. 1, on the outer peripheral surface of the second flange portion 36b, a plurality of arcuate recesses 36d arranged at intervals in the circumferential direction are formed by machining, and the disk portion 38 has a plurality of arcuate recesses 36d. A plurality of continuous openings 36e are formed.

The thread winding body portion 35 includes a tubular thread winding portion 35a around which fishing line can be wound, a boss portion 37 rotatably supported by the spool shaft 2 on the inner peripheral side of the thread winding portion 35a, and a thread winding portion 35a. It has a disk portion 38, which connects to the boss portion 37. The boss portion 37 is a tubular member having a through hole 37a through which the spool shaft 2 can penetrate. The through hole 37a is fitted into the first bearing 4 and the second bearing 5 mounted on the spool shaft 2. The tip end side of the boss portion 37 is closed by a lid member 34 constituting the spool attachment / detachment mechanism 6.

The through hole 37a of the boss portion 37 is formed so that the inner diameter increases in four steps from the tip end side to the base end side. The through hole 37a has a first step 37d, a second step 37e, and a third step 37f in order from the tip end side. The first step 37d comes into contact with the outer ring 4b of the first bearing 4 when the spool 3 is mounted. That is, the first side surface 4c of the first bearing 4 abuts on the first step 37d. The second step 37e is provided to facilitate mounting the first bearing 4 in the through hole 37a. That is, the tip side of the second step 37e is just fitted to the first bearing 4, but the proximal side of the second step 37e is larger than the outer diameter of the first bearing 4 and smaller than the outer diameter of the second bearing 5. .. The third step 37f comes into contact with the outer ring 5b of the second bearing 5 when the spool 3 is mounted.

A sounding mechanism 22 that generates sound by the rotation of the spool 3 is provided between the spool 3 and the spool shaft 2. By operating the operating member 29 shown in FIG. 2, the sounding mechanism 22 can be switched between the sounding position and the silent position.

FIG. 4 is a cross-sectional view of the single bearing reel according to the first embodiment. FIG. 4 shows a cross section taken along the cutting line IV-IV of FIG. The boss portion 37 is formed with a pair of slits 37b penetrating the outer peripheral surface and the inner peripheral surface of the boss portion 37 on the base end side of the second step 37e. The pair of slits 37b are arranged so as to face each other with the rotation axis of the spool 3 interposed therebetween. The pair of slits 37b have notched surfaces 37c (see FIG. 9) parallel to each other, which are notched on the surface parallel to the axis of rotation, on both sides of the penetrating portion. The slit 37b guides the detachable member 30 so as to be movable in the radial direction and immovable in the axial direction.

The lid member 34 is screwed and fixed to the outer peripheral surface of the tip of the boss portion 37. The lid member 34 is an example of a holding member of the spool attachment / detachment mechanism 6. The lid member 34 has a screw portion 34a screwed into the outer peripheral surface of the tip of the boss portion 37, and an annular positioning portion 34c formed having a diameter larger than that of the screw portion 34a. The positioning portion 34c is provided to restrict the movement of the detachable member 30 outward in the radial direction.

The pair of detachable members 30 are attached to the slit 37b. One annular spring 32 is engaged with the pair of detachable members 30 to urge the detachable member 30 toward the rotation axis of the spool 3. The detachable member 30 engages with the second side surface 4d of the first bearing 4. Since the detachable member 30 is restricted from moving in the axial direction with respect to the spool 3 by the slit 37b, the axial movement of the spool 3 is restricted by the slit 37b with respect to the detachable member 30 engaged with the second side surface 4d. Be regulated.

<Structure of spool attachment / detachment mechanism>
FIG. 5 is a front view of the detachable member according to the first embodiment. FIG. 6 is a perspective view of the detachable member according to the first embodiment. The detachable member 30 is a member formed by being curved in a substantially C shape. The detachable member 30 has a regulating portion 40, a pressing operation portion 42, a connecting portion 44, and a guide portion 46. The detachable member 30 is attached to the slit 37b of the spool 3 so that the first surface 30a faces the tip end side of the spool shaft 2. The restricting portion 40 is bent and linearly formed from the connecting portion 44 toward a position facing the pressing operation portion 42.

The regulating portion 40 has a regulating surface 40a arranged to face the second side surface 4d of the first bearing 4 and an inclined surface 40b on the opposite side to the regulating surface 40a. The regulation surface 40a is formed of a plane orthogonal to the rotation axis of the spool 3. The inclined surface 40b is formed of a plane whose distance from the regulation surface 40a increases toward the outside in the radial direction. The regulation surface 40a is locked to the second side surface 4d of the outer ring 4b of the first bearing 4 to prevent the spool 3 from being separated from the spool shaft 2. When the spool 3 removed from the spool shaft 2 is mounted on the spool shaft 2, the inclined surface 40b comes into contact with the corners of the outer peripheral surface of the outer ring 4b of the first bearing 4, and the pair of attachment / detachment members 30 utilize the inclination. Is provided to press in the direction of separation. A holding protrusion 40c for holding the annular spring 32 is formed on the radial outer surface of the restricting portion 40 so as to project radially outward. The regulating portion 40 has a first cylindrical surface 40d on the inner peripheral portion. The inner diameter of the first cylindrical surface 40d is slightly larger than the outer diameter of the boss portion 37.

The pressing operation unit 42 is provided for a pressing operation for moving the detachable member 30 radially outward from the restricted position to the detached position. The pressing operation portion 42 is formed so as to project radially outward from the connecting portion 44. The pressing operation unit 42 is formed with a storage recess 42b for accommodating the holding protrusion 40c of the other detachable member 30 when the two detachable members 30 are arranged so as to face each other. The storage recess 42b is formed so as to be substantially rectangularly recessed outward in the radial direction from the inner peripheral surface 44a of the connecting portion 44.

The connecting portion 44 connects the regulating portion 40 and the pressing operation portion 42. The inner peripheral surface 44a of the connecting portion 44 has a second cylindrical surface 44b having an inner diameter slightly larger than the outer peripheral surface of the boss portion 37, and a flat surface portion 44c. The length of the flat surface portion 44c is substantially the same as the amount of movement of the detachable member 30. A stepped surface 44d, which is a straight extension of the flat surface portion 44c, is formed at the boundary portion between the connecting portion 44 and the thin regulating portion 40.

The guide portion 46 is formed so as to be curved from the pressing operation portion 42 to the opposite side to the connecting portion 44. The guide portion 46 is provided to engage with the restricting portion 40 to guide the pair of detachable members 30 to each other in the radial direction. The sum of the thickness of the regulating portion 40 and the thickness of the guide portion 46 is equal to the thickness of the connecting portion 44. When the two attachment / detachment members 30 are arranged so that the respective regulation portions 40 face each other, one regulation portion 40 overlaps under the other guide portion 46, and one regulation portion 40 is guided by the other guide portion 46. NS. The guide portion 46 has a guide surface 46a at the tip portion that is in parallel with the stepped surface 44d of the other detachable member 30. The inner peripheral surface 46b of the guide portion 46 has the same inner diameter as the second cylindrical surface 44b and overlaps with the extension of the second cylindrical surface 44b.

A positioning projection 48 in contact with the lid member 34 is formed on the first surface 30a of the detachable member 30 so as to project from the first surface 30a. The positioning protrusion 48 is formed so as to avoid the annular spring 32. When the positioning protrusion 48 comes into contact with the lid member 34, the detachable member 30 is held by the boss portion 37.

FIG. 7 is a perspective view of the annular spring according to the first embodiment. The annular spring 32 has two engaging portions 32a that engage with each other and face each other with the holding projection 40c of the detachable member 30, and two connecting portions 32b that connect the engaging portions 32a and face each other. The annular spring 32 is formed of a single linear member. In the first embodiment, the annular spring 32 is not endless but is cut at one place in the gap 32c. Here, a spring having a gap 32c at one location and not endless is also referred to as an annular spring. The annular spring 32 may have an endless shape without a gap 32c.

When the engaging portions 32a are separated from each other from the open free state of the annular spring 32, a force for urging the engaging portions 32a to approach each other acts. Further, when the connecting portions 32b are compressed so as to be close to each other, the engaging portions 32a can be expanded so as to be separated from each other.

On the contrary, when the engaging portions 32a are brought close to each other from the open free state, a force for urging the engaging portions 32a to move away from each other acts. Further, if the connecting portions 32b are expanded so as to be separated from each other, the engaging portions 32a can be brought close to each other.

FIG. 8 is a perspective view of the pair of detachable members according to the first embodiment. FIG. 8 shows only the detachable member 30 in a state where the pair of detachable members 30 are attached to the boss portion 37 and are in the restricted position. In FIG. 8, the positioning protrusion 48 is omitted.

In the state of FIG. 8, the regulating portion 40 is fitted in the slit 37b of the boss portion 37, and the regulating surface 40a is in a position of engaging with the second side surface 4d of the first bearing 4. In this state, the first cylindrical surface 40d of the regulating portion 40 comes into contact with the outer peripheral surface of the boss portion 37, and the regulating portion 40 does not come closer to each other than in the state of FIG.

An annular spring 32 is attached to the slit 37b of the boss portion 37 and held at the position shown in FIG. 8 from the tip end side of the boss portion 37, that is, from the top in FIG. Is fitted so that the engaging portion 32a engages with the holding protrusion 40c. In the annular spring 32, in the open and free state, the distance between the two engaging portions 32a is larger than the distance between the holding protrusions 40c when the restricting portions 40 of the pair of detachable members 30 are in close proximity to each other. Is also small. If the connecting portions 32b are compressed so as to be close to each other, the engaging portions 32a can be expanded so as to be separated from each other. With the engaging portions 32a expanded so as to be separated from each other, if the engaging portions 32a are inserted into the storage recess 42b and the force for compressing the connecting portions 32b is loosened, the two engaging portions 32a are each holding protrusions. It can be engaged with 40c.

After mounting the annular spring 32, the lid member 34 is mounted. The lid member 34 covers the detachable member 30 and the annular spring 32 except for the pressing operation portion 42, and only the pressing operation portion 42 can be seen from the tip end side of the spool 3 (see FIG. 1).

FIG. 9 is a cross-sectional view of the spool attachment / detachment mechanism according to the first embodiment. FIG. 9 shows a cross section taken along the cutting line IX-IX of FIG. The pair of detachable members 30 are arranged so that the regulating portions 40 face each other with the spool shaft 2 interposed therebetween. FIG. 9 shows a state in which the detachable member 30 is in the restricted position.

In FIG. 9, the retaining bolt 18, the female screw hole 2a, the first bearing mounting portion 2b (broken line), the second bearing mounting portion 2c, the inner ring 4a (broken line) of the first bearing 4, the spacer 20, and the outer ring 4b are shown in this order from the center. , And the boss portion 37 is represented. The restricting portion 40 of the detachable member 30 is arranged in the slit 37b of the boss portion 37. The guide portion 46 of one of the detachable members 30 is located on the back side of the paper surface with respect to the other regulating portion 40, and is in contact with the surface of the regulating surface 40a of the regulating portion 40. The annular spring 32 is held by the holding protrusion 40c and urges the regulating portion 40 toward the spool shaft 2, respectively.

In the state of FIG. 9, the first cylindrical surface 40d of the regulating portion 40 abuts on the outer peripheral surface of the boss portion 37, or the straight portion on the side of the connecting portion 44 of the regulating portion 40 is the notched surface of the boss portion 37. It is in contact with 37c. The restricting portion 40 enters the through hole 37a of the boss portion 37 from the penetrating portion of the slit 37b, and the restricting surface 40a engages with the second side surface 4d of the outer ring 4b. Since the detachable member 30 is restricted from moving in the axial direction with respect to the spool 3 by the slit 37b, the axial movement of the spool 3 is restricted by the slit 37b with respect to the detachable member 30 engaged with the second side surface 4d. Be regulated.

In each of the detachable members 30, the pressing operation unit 42 is located at a position facing the regulation unit 40 with the spool shaft 2 interposed therebetween, and the regulation unit 40 is urged toward the spool shaft 2 by an annular spring 32 to the spool shaft 2. The pressing operation unit 42 is located away from the spool shaft 2 because it is located close to.

FIG. 10 is a cross-sectional view of the spool attachment / detachment mechanism during the pressing operation according to the first embodiment. FIG. 10 shows a cross section taken along the cutting line IX-IX of FIG. 3, as in FIG. FIG. 10 shows a state in which the detachable member 30 is in the detached position.

In each of the attachment / detachment members 30, the regulation unit 40 is located at a position facing the pressing operation unit 42 with the spool shaft 2 interposed therebetween, and from the state of FIG. 9, the pressing operation units 42 of the pair of attachment / detachment members 30 are brought closer to each other. When the pressing operation is performed in the direction, the regulating portion 40 moves radially outward from the spool shaft 2. In this way, the regulating portion 40 can be separated from the outer ring 4b of the first bearing 4. In the state of FIG. 10, since the regulation surface 40a of the regulation unit 40 does not engage with the second side surface 4d, the spool 3 can be separated from the spool shaft 2.

At this time, since the detachable member 30 is held by the lid member 34, it does not come off from the boss portion 37. Further, one holding protrusion 40c enters the other storage recess 42b, and the pair of detachable members 30 do not interfere with each other.

In the first embodiment, the annular spring 32 is held in an open and free state when the distance between the two engaging portions 32a is in a restricted position where the restricting portions 40 of the pair of detachable members 30 are close to each other. It is smaller than the distance between the protrusions 40c. Further, the two engaging portions 32a can be separated from each other at a position where the regulating portion 40 is separated from the second side surface 4d without making the inner dimensions of the connecting portions 32b smaller than the outer diameter of the boss portion 37. ..

If the force for pressing the pressing operation unit 42 is relaxed from the state shown in FIG. 10, the restoring force of the annular spring 32 returns to the state shown in FIG. In this way, the spool 3 can be mounted on the spool shaft 2. Alternatively, when the spool shaft 2 is inserted into the through hole 37a of the boss portion 37 without pressing the pressing operation portion 42 with the detached spool 3, the detachable member 30 returns to the position shown in FIG. 9, which is restricted. The inclined surface 40b of the portion 40 abuts on the corner of the first side surface 4c of the outer ring 4b of the first bearing 4. When the boss portion 37 is pushed in as it is, the detachable member 30 is moved outward in the radial direction by the inclined surface 40b, and the outer peripheral surface of the outer ring 4b can be slid so that the regulation surface 40a can be engaged with the second side surface 4d.

In the spool attachment / detachment mechanism 6 of the first embodiment, the pair of attachment / detachment members 30 are urged toward the rotation axis of the spool 3 by one annular spring 32. The spool attachment / detachment mechanism 6 of the first embodiment can be assembled by simply fitting the annular spring 32 into the holding protrusion 40c of the attachment / detachment member 30 in a state where the pair of attachment / detachment members 30 are arranged in the slit 37b of the boss portion 37.

The annular spring 32 is not limited to the shape shown in FIG. 7. For example, it is not limited to the linear material and may be formed by processing from a plate-shaped material. As described above, the gap 32c may or may not be present. For example, after processing the linear material into the shape shown in FIG. 7, the gap 32c may be welded and connected. The engagement portion 32a is not limited to the engagement portion 32a formed by bending, and for example, the engagement portion 32a may be formed by insert molding. Also, the "annular" of an annular spring does not mean to surround the entire circumference. For example, the two connecting portions 32b may not connect the two engaging portions 32a, but one of the connecting portions 32b may connect the engaging portions 32a. In that case, the gap 32c is not formed in either of the two engaging portions 32a, and the omitted portion of the connecting portion 32b corresponds to the gap 32c.

In addition, the lid member 34 is not fixed to the boss portion 37 by the screw portion 34a, but, for example, an annular concave portion that engages with the annular convex portion formed on the boss portion 37 is formed on the lid member 34 and elastically deformed. It may be configured to be fitted.

The positioning protrusion 48 of the detachable member 30 is not limited to the shapes shown in FIGS. 5 and 6. Further, the positioning protrusion 48 may be omitted. In that case, the annular spring 32 is in contact with the lid member 34, and the detachable member 30 is indirectly held via the annular spring 32.

Embodiment 2.
FIG. 11 is a perspective view of the annular spring according to the second embodiment of the present invention. In the second embodiment, the spool attachment / detachment mechanism 6 includes only one attachment / detachment member 30.

The annular spring 32 of the second embodiment forms a fitting portion 32d instead of one engaging portion 32a of the pair of engaging portions 32a of the annular spring 32 of the first embodiment. The fitting portion 32d fits into the slit 37b of the boss portion 37. A gap 32c is also formed in the annular spring 32 of FIG. The gap 32c may be formed in the fitting portion 32d instead of the engaging portion 32a. Further, there is no gap 32c, and the annular spring 32 may be endless.

FIG. 12 is a cross-sectional view of the spool attachment / detachment mechanism according to the second embodiment. FIG. 12 shows a cross section taken along the cutting line IX-IX of FIG. 3, as in FIG. In the second embodiment, one detachable member 30 is attached to the boss portion 37. The engaging portion 32a of the annular spring 32 engages with the holding projection 40c. Further, the fitting portion 32d fits into the other slit 37b facing the slit 37b in which the regulating portion 40 is inserted.

In the second embodiment, the annular spring 32 is formed so that the regulating portion 40 is urged toward the spool shaft 2 in the state of FIG. 12. The restricting portion 40 enters the through hole 37a through the penetrating portion of the slit 37b and engages with the second side surface 4d of the outer ring 4b.

Also in the second embodiment, the annular spring 32 can be attached from the tip end side of the boss portion 37 while the detachable member 30 is attached to the boss portion 37 and held at the regulated position. After mounting the annular spring 32, the lid member 34 is mounted. The lid member 34 covers the detachable member 30 and the annular spring 32 except for the pressing operation portion 42, and only the pressing operation portion 42 can be seen from the tip end side of the spool 3 (see FIG. 1).

From the state of the restricted position, the restricting unit 40 is operated by putting a finger on the position facing the pressing operation unit 42 and the rotation shaft of the lid member 34 so as to press the pressing operation unit 42 toward the spool shaft 2. Can be detached from the second side surface 4d. At this time, the fitting portion 32d of the annular spring 32 is pressed by the connecting portion 44 and the guide portion 46 and does not come off from the slit 37b.

In the second embodiment, the number of parts is small and the assembly is easier. The "annular" of the annular spring does not mean to surround the entire circumference. For example, the two connecting portions 32b may not connect the engaging portion 32a and the fitting portion 32d, but one of the connecting portions 32b may connect the engaging portion 32a and the fitting portion 32d. In that case, the gap 32c is not formed in either the engaging portion 32a or the fitting portion 32d, and the omitted portion of the connecting portion 32b corresponds to the gap 32c.

Embodiment 3.
FIG. 13 is a cross-sectional view of the spool attachment / detachment mechanism according to the third embodiment of the present invention. In the third embodiment, the restricting portion 40 is not directly urged by the annular spring 32, but the pressing operation portion 42 is urged radially outward by the annular spring 32 to indirectly urge the regulating portion 40. Is urged inward in the radial direction.

In the third embodiment, the detachable member 30 has the holding protrusion 42c inside the pressing operation portion 42 instead of the holding protrusion 40c. The annular spring 32 of the third embodiment has the same shape as the annular spring 32 of FIG. 7, but the distance between the engaging portions 32a is different. In the third embodiment, the distance between the two engaging portions 32a is the distance between the holding protrusions 42c when the restricting portions 40 of the pair of detachable members 30 are close to each other in the open and free state. Greater than. Further, even if the inner dimensions of the connecting portions 32b are not smaller than the outer diameter of the boss portion 37, the two engaging portions 32a can be separated from each other at the position where the regulating portion 40 engages with the second side surface 4d. can. Therefore, the pair of detachable members 30 can be held in the state shown in FIG. 13, and the annular spring 32 can be mounted from the tip end side of the boss portion 37.

As shown in FIG. 13, the annular spring 32 is engaged with and held by the holding protrusion 42c formed inside the pressing holding portion 42. In the annular spring 32, in the open and free state, the distance between the two engaging portions 32a is larger than the distance between the holding protrusions 42c when the pair of detachable members 30 are in the restricted positions. In this state, the pressing and holding portions 42 are urged in a direction in which they separate from each other.

In each of the pair of detachable members 30, the restricting portion 40 is arranged at a position facing the pressing operation portion 42 with the rotation shaft of the spool 3 interposed therebetween. Then, the regulating unit 40 is urged in a direction close to the rotation axis. Therefore, the movement of the pair of detachable members 30 is the same as that of the first embodiment.

In a state where the pair of detachable members 30 are attached to the slit 37b of the boss portion 37 and held at the position as shown in FIG. 13, the annular spring 32 is held by the engaging portion 32a from the tip end side of the boss portion 37. Fit to engage with. In the annular spring 32, in the open and free state, the distance between the two engaging portions 32a is larger than the distance between the holding protrusions 42c when the pair of detachable members 30 are in the restricted position. If the connecting portions 32b are expanded so as to be separated from each other, the engaging portions 32a can be compressed so as to be close to each other. Alternatively, the engaging portions 32a may be compressed so as to be in direct proximity to each other. When the engaging portions 32a are inserted into the storage recess 42b in a state where the engaging portions 32a are compressed so as to be close to each other and the force for expanding the connecting portions 32b is loosened, the two engaging portions 32a are each holding protrusions. It can be engaged with 42c.

FIG. 14 is a cross-sectional view of the spool attachment / detachment mechanism during the pressing operation according to the third embodiment. FIG. 14 shows a cross section taken along the cutting line IX-IX of FIG. 3, as in FIG. FIG. 14 shows a state in which the detachable member 30 is in the detached position.

In each of the pair of attachment / detachment members 30, the regulation unit 40 is located at a position facing the pressing operation unit 42 with the spool shaft 2 interposed therebetween. When the pressing operation is performed in the approaching direction, the regulating portion 40 moves radially outward from the spool shaft 2. In this way, the regulating portion 40 can be separated from the outer ring 4b of the first bearing 4. In the state of FIG. 14, since the regulation surface 40a of the regulation unit 40 does not engage with the second side surface 4d, the spool 3 can be separated from the spool shaft 2. At this time, since the detachable member 30 is held by the lid member 34, it does not come off from the boss portion 37.

Also in the third embodiment, the annular spring 32 does not have to surround the entire circumference. For example, the two connecting portions 32b may not connect the two engaging portions 32a, but one of the connecting portions 32b may connect the engaging portions 32a. In that case, the gap 32c is not formed in the engaging portion 32a, and the omitted connecting portion 32b corresponds to the gap 32c.

Embodiment 4.
FIG. 15 is a cross-sectional view of the spool attachment / detachment mechanism according to the fourth embodiment of the present invention. FIG. 15 shows a cross section taken along the cutting line IX-IX of FIG. The fourth embodiment is configured in which the detachable member and the annular spring are integrally formed.

The annular spring 33 according to the fourth embodiment has the functions of the detachable member 30 and the annular spring 32. The annular spring 33 is composed of an annular spring member. The annular spring 33 has two regulating portions 50 and two pressing operating portions 33b. The two regulating portions 50 are arranged at positions facing each other of the annular spring 33. Further, the two pressing operation portions 33b are arranged at positions facing each other of the annular spring 33. The line connecting the restricting portions 50 is orthogonal to the line connecting the pressing operation portions 33b. Compared to the annular spring 32 of the first embodiment, the restricting portion 50 corresponds to the engaging portion 32a, and the pressing operation portion 33b corresponds to the connecting portion 32b.

The annular spring 33 is in an open and free state, and the inner dimension between the two regulating portions 50 is smaller than the inner diameter of the outer ring 4b of the first bearing 4. In the state of FIG. 15, since the regulating portions 50 are separated from each other from the state in which the annular spring 33 is opened, the regulating portions 50 are urged in a direction close to each other. The inner circumference of the annular spring 33 abuts on the corner of the notched surface 37c of the slit 37b and stabilizes.

When the annular spring 33 is pressed in the direction in which the pressing operation portions 33b are brought closer to each other, that is, toward the rotation axis of the spool 3, the restricting portions 50 are separated from each other. That is, the regulating portion 50 is moved in the direction of being separated from the second side surface 4d of the outer ring 4b.

FIG. 16 is a cross-sectional view of the spool attachment / detachment mechanism when the annular spring according to the fourth embodiment is attached. FIG. 16 shows a cross section taken along the cutting line IX-IX of FIG. 3, as in FIG. The length of the virtual inner peripheral VC of the annular spring 33 passing through the radial inner tip of the restricting portion 50 and the radial inner circumference of the pressing operation portion 33b is larger than the length of the outer periphery of the cross section of the boss portion 37. Therefore, the pressing operation portions 33b can be pressed in a direction in which they are brought closer to each other to be deformed as shown in FIG. 16 and the boss portion 37 can be inserted therethrough. The deformation of the annular spring 33 can be undone at the position of the slit 37b, and the annular spring 33 can be mounted at the restricted position as shown in FIG.

After the annular spring 33 is attached to the slit 37b, the lid member 34 is attached to the tip of the boss portion 37. The outer diameter of the lid member 34 is made larger than the outer diameter of the pressing operation portions 33b when the annular spring 33 is mounted, and the distance between the regulating portions 50 from the outside of the lid member 34 is smaller than the outer diameter of the boss portion 37. If the annular spring 33 cannot be deformed until it becomes large, the annular spring 33 cannot be removed. The annular spring 33 may be formed with a bent portion that hits the outer periphery of the lid member 34 when the pressing operation portions 33b are pressed against each other.

FIG. 17 is a perspective view showing an example of the annular spring according to the fourth embodiment. The annular spring 33 of FIG. 17 is formed by, for example, insert molding a restricting portion 50 into an annular spring. The annular spring can be formed by processing a single linear member, for example, as in the annular spring 32 of FIG. If the annular spring has a gap 32c, the gap 32c can be placed in the restrictor 50 to be insert molded. Further, if the annular spring is bent in the regulating portion 50, the regulating portion 50 does not rotate around the spring material.

In the annular spring 33 of FIG. 17, the pressing operation portion 33b is formed as a bent portion that rises from the surface of the annular spring. When the annular spring 33 is attached to the boss portion 37 and the lid member 34 is attached, the distance between the pressing operation portions 33b cannot be made smaller than the outer diameter of the lid member 34. As a result, the annular spring 33 is held by the lid member 34.

The regulating portion 50 has a regulating surface 50a arranged to face the second side surface 4d of the first bearing 4 and an inclined surface 50b on the opposite side to the regulating surface 50a. The regulation surface 50a is formed of a plane orthogonal to the rotation axis of the spool 3. The inclined surface 50b is formed of a plane whose distance from the regulation surface 50a increases toward the outside in the radial direction. The regulation surface 50a is locked to the second side surface 4d of the outer ring 4b of the first bearing 4 to prevent the spool 3 from falling off from the spool shaft 2. When the spool 3 removed from the spool shaft 2 is mounted on the spool shaft 2, the inclined surface 50b contacts the corner portion of the outer peripheral surface of the outer ring 4b of the first bearing 4 and separates the regulating portion 50 by utilizing the inclination. It is provided to press in the direction.

In the spool attachment / detachment mechanism 6 of the fourth embodiment, since the attachment / detachment member and the annular spring are integrally formed, the number of parts is further reduced and the assembly is easier.

In the above-described embodiment, the first bearing 4 which is a rolling bearing is exemplified as a protrusion, but the present invention is not limited thereto. The protrusion may be a slide bearing. Further, the protrusion may be formed integrally with the spool shaft. In particular, when the protrusion is made of synthetic resin, the protrusion can be easily provided integrally with the spool shaft even if the protrusion is also used as a bearing. Further, the protrusion may be provided integrally with the spool shaft by a molding method such as insert molding.

In the embodiment, the single bearing reel 100 in which the handle handle 54 is provided on the spool 3 has been described, but the spool attachment / detachment mechanism of the present invention is applied to a fishing reel in which the spool can be attached / detached to / from the spool shaft from the open end of the spool shaft. can. For example, the spool attachment / detachment mechanism of the present invention can be applied to a single bearing reel in which the handle handle is provided on the side opposite to the spool of the reel body and the drive mechanism is built in. In addition, the spool attachment / detachment mechanism of the present invention can be applied to the spinning reel.

1 Reel body 2 Spool shaft 3 Spool 4 1st bearing 4c 1st side surface 4d 2nd side surface 5 2nd bearing 6 Spool attachment / detachment mechanism 30 Detachable member 30a 1st surface 32 Ring spring 32a Engagement part 32b Connecting part 33 Ring spring 33b Pressing Operation part 34 Lid member 35 Thread winding body part 37 Boss part 37b Slit 40 Restriction part 40a Restricted surface 40b Inclined surface 42 Pressing operation part 44 Connecting part 50 Restricting part 50a Restricting surface 50b Inclined surface 100 Single bearing reel

Claims (11)

It is a spool attachment / detachment mechanism for fishing reels that allows the spool of the fishing reel to be attached / detached to / from the spool shaft.
A first side surface that protrudes from the open end of the spool shaft in the radial direction of the spool shaft and faces the side of the open end face of the spool shaft, and a first side surface that faces the side of the support portion opposite to the open end face of the spool shaft. With a protrusion having two sides,
Has a surface that can face the second aspect, the restricting portion capable of being engaged with the second side surface, and, when it is pressed against the rotation shaft of the spool, the restriction portion from the protrusion An operation unit for moving in a detaching direction is formed, and at least one detachable member mounted on the spool is formed.
An annular spring that urges the restricting portion in the radial direction of the spool toward the rotation axis,
A holding member that holds the detachable member at the mounting position of the spool, and
Spool attachment / detachment mechanism equipped with. The detachable member is attached to a slit penetrating from the outer peripheral surface to the inner peripheral surface of the tubular boss portion provided on the thread winding body portion of the spool, and the detachable member engages with the second side surface. The spool attachment / detachment mechanism according to claim 1, wherein the movement of the spool in the axial direction is restricted by the slit. The spool attachment / detachment mechanism according to claim 1 or 2, wherein the holding member is fixed to the tip of the spool in the rotation axis direction to hold the attachment / detachment member at the mounting position of the spool. The protrusion is a rolling bearing mounted on the open end of the spool shaft so as not to be movable in the axial direction.
The second side surface is a surface of the outer ring of the rolling bearing toward the support portion.
The spool attachment / detachment mechanism according to any one of claims 1 to 3. The pair of detachable members are mounted on the spool so as to face each other in the radial direction with the rotation axis of the spool interposed therebetween.
The annular spring urges the restricting portions of the pair of detachable members toward each other.
The spool attachment / detachment mechanism according to any one of claims 1 to 4. The restricting portion and the operating portion of each of the detachable members are arranged at positions facing each other with the rotation axis of the spool interposed therebetween.
Each of the detachable members has a connecting portion that connects the restricting portion and the operating portion by bending outward in the radial direction of the rotation shaft of the spool.
The annular spring engages radially outward of the restricting portion and urges the restricting portions of the pair of detachable members toward each other.
The spool attachment / detachment mechanism according to claim 5. The restricting portion and the operating portion of each of the detachable members are arranged at positions facing each other with the rotation axis of the spool interposed therebetween.
Each of the detachable members has a connecting portion that connects the restricting portion and the operating portion by bending outward in the radial direction of the rotation shaft of the spool.
The annular spring engages radially inward of the operating portion and urges the operating portions of the pair of detachable members in a direction away from each other.
The spool attachment / detachment mechanism according to claim 5. The spool attachment / detachment mechanism according to any one of claims 1 to 7, wherein the annular spring is formed of a single wire rod. The spool attachment / detachment mechanism according to any one of claims 1 to 5, wherein the attachment / detachment member and the annular spring are integrally formed. The regulation portion includes a regulation surface arranged to face the second side surface, an inclined surface arranged on the side opposite to the regulation surface, and an inclined surface in which the distance from the regulation surface increases toward the outside in the radial direction. The spool attachment / detachment mechanism according to any one of claims 1 to 9. With the reel body
The spool shaft that is cantilevered and supported by the reel body,
The first bearing, which is a protrusion that is prevented from coming off at the open end of the spool shaft,
A second bearing arranged on the cantilever support side of the first bearing,
A tubular boss that is integrally formed with the thread winding body and is arranged on the inner peripheral side of the thread winding body and is rotatably supported by the first bearing and the second bearing on the spool shaft. With a spool for thread winding, which has a part,
The spool attachment / detachment mechanism according to any one of claims 1 to 10.
Single bearing reel with.

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