Fishing reel
The bearing structure in fishing reels restricts axial and rotational movements using engaging portions and restricting sections, enhancing rotational feel and reducing costs while maintaining compactness.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- DAIWA SEIKO CORPORATION
- Filing Date
- 2023-01-13
- Publication Date
- 2026-05-19
AI Technical Summary
The existing collar type bearing in fishing reels experiences rotational and axial movement issues, leading to deteriorated rotational feel, increased space requirements, complex assembly, and higher costs, making it difficult to miniaturize the reel body.
A bearing structure with a first engaging portion and a second engaging portion that restricts axial and rotational movements by fitting into corresponding restricting portions on the reel body, eliminating the need for adhesives and separate components, thus simplifying assembly and reducing costs.
The bearing structure improves rotational feel and reduces manufacturing costs without increasing the reel body size, providing a stable and cost-effective solution.
Smart Images
Figure 0007862332000001 
Figure 0007862332000002 
Figure 0007862332000003
Abstract
Description
Technical Field
[0001] The present invention relates to a fishing reel provided with a bearing for supporting a driving member.
Background Art
[0002] A spinning reel, which is a fishing reel, includes a pinion gear (driving member) that is rotationally driven by a rotational operation of a handle connected to a driving force transmission mechanism inside the reel body. Inside the pinion gear, a spool shaft holding a spool around which a fishing line is wound is inserted. Further, a rotor having a fishing line guide portion is integrally rotatably fixed to the pinion gear, and the spool shaft is configured to be rotationally driven in the front-rear direction via an oscillating mechanism.
[0003] The pinion gear is rotatably supported by front and rear bearings provided inside the reel body. As the rear bearing, as disclosed in Patent Document 1, a configuration that supports the pinion gear and the spool shaft in a collar type is known. The collar type bearing disclosed in Patent Document 1 is configured in a cylindrical shape in which a small diameter portion and a large diameter portion are integrally formed adjacent to each other in the axial direction, and supports the spool shaft at the small diameter portion and the pinion gear at the large diameter portion. Further, the bearing configured in such a cylindrical shape is provided inside the reel body and is mounted on a cup-shaped support portion having a through hole formed at the center.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] The aforementioned known bearing (collar) is subjected to rotational movement in accordance with the rotation of the pinion gear and axial movement in accordance with the forward and backward movement of the spool shaft. Furthermore, when the collar is subjected to axial movement, the smaller diameter portion comes into contact with the end face of the pinion gear, and the larger diameter portion comes into contact with the cup-shaped support portion of the reel body.
[0006] Thus, when the bearing moves in conjunction with the rotation of the handle, the rotational feel deteriorates. In particular, effectively restricting the axial movement of the collar leads to problems such as increased space requirements, increased assembly steps due to bonding, and worsening of assembly ease, making it difficult to miniaturize the reel body and increasing costs.
[0007] This invention was made in view of the above-mentioned problems, and aims to provide a fishing reel equipped with a bearing structure that improves the feel when the drive member rotates and reduces manufacturing costs without increasing the size of the reel body. [Means for solving the problem]
[0008] To achieve the above objectives, the fishing reel according to the present invention has a configuration comprising a drive member that is rotationally driven by the rotational operation of a handle provided on the reel body, and a bearing that rotatably supports the drive member with respect to the reel body, wherein the bearing comprises a first engaging portion and a second engaging portion, the axial movement of the bearing is restricted when the first engaging portion fits into a movement restricting portion provided on the reel body, and the rotational movement of the bearing is restricted when the second engaging portion fits into a rotation restricting portion provided on the reel body.
[0009] In the fishing reel with the above configuration, the bearing supporting the drive member is equipped with a first engagement portion and a second engagement portion, which are fitted into a movement restricting portion and a rotation restricting portion provided on the reel body, respectively. As a result, the bearing is restricted from moving in the axial direction and rotational direction. Therefore, since the bearing does not move when the drive member rotates, a good rotational feel is obtained, and there is no need to fix the bearing to the reel body by adhesive or the like. This simplifies the bearing assembly procedure and fixing configuration, and does not increase costs. [Effects of the Invention]
[0010] According to the present invention, a fishing reel can be obtained that has a bearing structure that improves the feel when the drive member rotates and reduces manufacturing costs without increasing the size of the reel body. [Brief explanation of the drawing]
[0011] [Figure 1] This is a side view showing an example of a fishing reel (spinning reel) according to the present invention, illustrating its internal structure. [Figure 2] A magnified view of the main part of Figure 1. [Figure 3] (a) is a cross-sectional view along line AA in Figure 2, and (b) is a view of Figure 2 from direction B. [Figure 4] (a) is a cross-sectional view along line AA in Figure 2, and (b) is a view of Figure 2 from direction B. Both diagrams illustrate the method of assembling and fixing the bearing. [Figure 5] (a) and (b) are diagrams illustrating a second embodiment of the present invention. [Figure 6] A diagram showing a third embodiment of the present invention. [Modes for carrying out the invention]
[0012] Hereinafter, an embodiment of the fishing reel according to the present invention will be specifically described with reference to the attached drawings. Figures 1 and 2 show a first embodiment of a fishing reel (spinning reel) according to the present invention. Figure 1 is a side view showing the internal structure, and Figure 2 is an enlarged view of the main part of Figure 1.
[0013] In this embodiment, the spinning reel (hereinafter referred to as "reel") 1 has a reel leg 2 integrally formed on the reel body 1A which is attached to a fishing rod, and a rotor 3 that is rotatably supported and a spool 4 that is supported to move back and forth in synchronization with the rotational movement of the rotor 3 are disposed in front of it.
[0014] The rotor 3 is equipped with a pair of arms 3a (only one is shown in Figure 1) that rotate around the spool 4. A bail support member 3c, to which the base end of a bail 3b is attached, is rotatably supported at the front end of each arm 3a, between the fishing line winding position and the fishing line release position. One base end of the bail 3b is attached to a fishing line guide 3d integrally provided on the bail support member 3c.
[0015] A handle shaft 5 is rotatably supported within the reel body 1A, and a handle 6 is attached to its protruding end. A known drive force transmission mechanism 10 is connected to the handle shaft 5, and this drive force transmission mechanism 10 comprises a drive gear 7 that is integrally rotatably mounted on the handle shaft 5, and a pinion gear (drive member) 8 having teeth 8a that mesh with the drive gear 7. The pinion gear 8 extends in a direction perpendicular to the handle shaft 5 and has a cavity that extends axially inside.
[0016] The pinion gear 8, which is configured as a drive member, has its front and rear teeth 8a rotatably supported within the reel body 1A by a pair of bearings 19 and 20 provided in the reel body 1A. The pinion gear 8 extends toward the spool 4, and the rotor 3 is fitted to the tip of the pinion gear 8 via a tightening nut 15 to prevent rotation, so that the rotor 3 can rotate integrally with the pinion gear 8.
[0017] On the pinion gear 8 on the front side of the bearing 19, a known one-way clutch 16 that constitutes an anti-reverse mechanism is disposed. As is well known, this one-way clutch 16 includes an inner ring that is non-rotatably fitted to the outer surface of the pinion gear 8, an outer ring provided radially outward of this inner ring, a rolling member held between the inner ring and the outer ring, and a retainer that holds this rolling member. The retainer is driven to switch by rotating a switching operation lever 17 provided outside the reel body 1A, and the one-way clutch 16 is switched between an anti-reverse state that prevents rotation in the fishing line payout direction of the handle 6 (rotor 3) and a freely rotatable state.
[0018] In the hollow portion formed inside the pinion gear 8, a spool shaft 4A that extends in a direction orthogonal to the handle shaft 5 and has a spool 4 attached to the tip end side is inserted axially movably. At the rear end of this spool shaft 4A, a known oscillating mechanism 40 for reciprocating the spool 4 (spool shaft 4A) back and forth in accordance with the rotation operation of the handle 6 is engaged.
[0019] In the reel having the above-described configuration, when a winding operation is performed by the handle 6, the rotor 3 is rotationally driven via the driving force transmission mechanism 10, and at the same time, the spool 4 (spool shaft 4A) is reciprocated back and forth via the oscillating mechanism 40, so that the fishing line is evenly wound around the winding drum portion 4a of the spool 4 via the fishing line guide portion 3d.
[0020] Next, referring to FIGS. 2 to 4, the configuration of the bearing 20 on the rear side that rotatably supports the pinion gear 8 with respect to the reel body 1A will be described. This bearing 20 is configured as a collar type fixed to the reel body 1A, and has a function of rotatably supporting the cylindrical portion 8b on the rear side of the tooth portion 8a of the pinion gear 8, and contacts the outer surface of the spool shaft 4A that protrudes rearward from the cylindrical portion 8b and moves back and forth, and has a function of stably moving the spool shaft 4A back and forth.
[0021] Furthermore, the bearing 20 comprises a large-diameter portion 20A that contacts the outer circumferential surface of the (cylindrical portion 8b) of the pinion gear 8, and a small-diameter portion 20B that contacts the outer circumferential surface of the spool shaft 4A, and these are configured as a cylindrical body that is adjacent to each other in the axial direction and integrated. A through hole 20C is formed in the central axial portion of the small-diameter portion 20B, through which the spool shaft 4A is inserted. Furthermore, the bearing 20 is fixed in such a state that its rotational movement is restricted relative to the reel body 1A even when the pinion gear 8 is rotationally driven, and also fixed in such a state that its movement in the forward and backward direction is restricted relative to the reel body 1A even when the spool shaft 4A moves back and forth.
[0022] The bearing 20 of this embodiment is equipped with a first engaging portion 20a and a second engaging portion 20b so as to be fixed to the reel body in the state described above. Specifically, the first engaging portion 20a is configured as a projection that protrudes radially outward from a part of the large diameter portion 20A (hereinafter also referred to as projection 20a), and the second engaging portion 20b is configured as a recess that protrudes radially outward from a part of the large diameter portion 20A (a recess that protrudes from the outer peripheral edge of the bearing and is formed in a substantially U-shape) (hereinafter also referred to as recess 20b).
[0023] In this case, it is preferable that the projection 20a and recess 20b are formed at positions that are radially opposite to the central axis X of the bearing 20 (the projection 20a and recess 20b are formed at approximately 180° intervals), as shown in Figures 3 and 4. That is, as described above, since the cylindrical bearing 20 has the function of restricting axial movement and the function of restricting rotation, by arranging the positions that perform each function in a symmetrical direction with respect to the central axis X of the bearing 20, it is possible to stably perform each function.
[0024] The projection 20a fits into the movement restricting portion 50 provided on the reel body 1A, thereby restricting the axial movement of the bearing 20, and the recess 20b fits into the rotation restricting portion 60 provided on the reel body 1A, thereby restricting the rotational movement of the bearing 20. In this case, the recess constituting the rotation restricting portion may be a through hole, but forming it in a substantially U-shape makes it easier to arrange the shaft member constituting the rotation restricting portion described below.
[0025] The movement restricting section 50 in this embodiment is composed of a groove 51 extending in the left-right direction (in the direction perpendicular to the plane of the paper in Figures 1 and 2) of the reel body 1A, so that the side plate of the reel body 1A can be opened, the bearing 20 can be grasped, and the projection 20a can be inserted and fitted into it. That is, when the projection 20a is fitted into the groove 51, it is fixed in a clamped state, thereby restricting the axial movement of the bearing 20 (see Figures 2 and 3).
[0026] Furthermore, the rotation restricting section 60 in this embodiment is composed of a shaft member 61 arranged along the front-rear direction on the reel body 1A. This shaft member 61 is a component of the known oscillating mechanism 40 described above, and is a member that guides the slider 41 fixed to the rear end of the spool shaft 4A when the slider 41 slides in the front-rear direction due to the cam action when the handle 6 is rotated. In this embodiment, the shaft member 61 that has the function of guiding the slider 41 of the oscillating mechanism 40 is also used as the rotation restricting section, and the rotational movement of the bearing 20 is restricted by fitting and fixing the cylindrical shaft member 61 in the recess 20b (see Figures 2 and 3).
[0027] When installing the bearing 20 with the above configuration, the projection 20a is positioned in the groove 51 with a slight clockwise rotation relative to the central axis X, as shown in Figure 4, and then inserted and fitted into the groove 51, which is the movement restricting part, by rotating it in the direction of the arrow (see Figure 3). In this state, the recess 20b of the bearing 20 is rotated to be located below and symmetrically to the projection 20a, and the bearing 20 can be installed by fitting the shaft member 61, which is the rotation restricting part, into this recess.
[0028] As described above, once the bearing 20 is installed, the projection 20a fits into the groove 51 and is held in place by the movement restricting portion 50. Therefore, even when the spool shaft 4A is driven to reciprocate back and forth by the oscillation mechanism, it does not move along in the axial direction. Consequently, the bearing 20 does not come into contact with the end face of the pinion gear 8. Furthermore, since the shaft member 61 fits into the recess 20b, the rotational movement of the bearing 20 is also restricted. As a result, the pinion gear 8 is driven to rotate in conjunction with the rotation of the handle 6, and the spool shaft 4A is driven to reciprocate, without any rattling or noise, thus improving the rotational feel.
[0029] In the above configuration, the movement restricting section 50 only requires forming a groove 51 inside the reel body, and the rotation restricting section 60 utilizes a component (shaft member 61) of the oscillating mechanism 40, so there is no need to provide a separate part, making it possible to fix the bearing 20 at low cost without increasing the size of the reel body. Furthermore, since adhesive is not required to restrict the axial and rotational movement of the bearing 20, the bearing 20 can be fixed at low cost. Moreover, since the members that restrict the axial and rotational movement of the bearing 20 do not require press-fitting, the bearing 20 can be fixed while maintaining the dimensional accuracy of the parts.
[0030] The bearing 20 described above can be constructed from materials that have good sliding properties and excellent wear resistance, such as resin materials like polyacetal (POM) and polyphenylene sulfide (PPS), ceramic materials like carbon, and metal materials like aluminum (aluminum alloy).
[0031] Figures 5(a) and 5(b) correspond to Figures 3(a) and 3(b), and 4(a) and 4(b), respectively, and illustrate a second embodiment. In this embodiment, when fixing the bearing 20 to the movement restricting portion 50 and the rotation restricting portion 60, a fixing portion is provided for specifying the position in which the bearing 20 is fixed to the movement restricting portion 50 and the rotation restricting portion 60.
[0032] For example, as shown in Figures 5(a) and 5(b), the fixing portion 53 can be formed to act as a stopper within the groove 51 of the movement restricting portion 50. When the projection 20a of the bearing 20 is fitted into the groove 51 and rotated in the direction of the arrow in Figure 4, the projection 20a is pressed against it, preventing it from rotating from position P1. In this way, the position of the bearing 20 can be fixed at position P1, so that the recess 20b of the bearing 20 can always be identified at the same position. Therefore, when assembling the bearing 20, the shaft member 61 can be easily fitted into the recess 20b, improving ease of assembly.
[0033] Figure 6 shows a third embodiment. In this embodiment, the movement restricting section 50 and the rotation restricting section 60 are configured by engagement structures provided on the bearing 20 and the reel body 1A, respectively, so that when the bearing 20 is mounted in a predetermined position on the reel body 1A, the axial movement and rotational movement of the bearing 20 can be restricted.
[0034] The engagement structure shown in Figure 6 forms a movement restricting portion 50 and a rotation restricting portion 60 by forming an elastically deformable locking claw (locking part) 55 on the side surface of the projection 20a' of the bearing 20, and a fastener (locking claw etc. with an engaging recess) 56 that engages with the locking claw 55 at a position corresponding to the locking claw 55 on the opposing joint surface of the reel body 1A. In other words, the locking claw 55 has the function of a first engaging portion that restricts axial movement and a second engaging portion that restricts rotational movement. By grasping the bearing 20 and engaging the locking claw 55 formed on the projection 20a' with the fastener 56 formed on the reel body 1, the axial movement and rotational movement of the bearing 20 are restricted.
[0035] In this case, the locking structure of the locking claw 55 and the fastener 56 is not particularly limited as long as it can restrict the axial movement and rotational movement of the bearing 20 when both are engaged, such as through interlocking grooves and protrusions and through holes. In this way, by incorporating the bearing 20 into a predetermined position in the reel body 1A, the axial and rotational movement of the bearing 20 can be restricted, eliminating the need to form a groove 51 in the reel body 1A or to install a shaft member 61, as in the embodiment described above, and further reducing manufacturing costs.
[0036] Furthermore, the locking claws 55 described above can be provided at various positions such as the side surface or circumferential edge of the bearing 20, and the number of claws they are arranged can also be appropriately modified, such as by providing them at positions radially opposite to the locking claws 55.
[0037] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above and can be modified in various ways. The present invention is characterized by a bearing structure that rotatably supports one end of a pinion gear, which is a drive member, but is not limited to other configurations. Furthermore, it can be applied to bearings of various drive members other than pinion gears.
[0038] Furthermore, in the first embodiment described above, the first engaging portion that restricts the axial movement of the bearing is made up of a projection 20a formed on the bearing 20, and the movement restricting portion 50 is made up of a groove 51 provided on the reel body 1A. However, it is also possible to form a groove on the circumferential edge of the bearing 20 and a projection on the reel body side to fit the two together. Moreover, the position of the first engaging portion and the second engaging portion, the number of portions provided, and the fitting structure of each engaging portion are not limited to the embodiment described above and can be modified as appropriate. [Explanation of symbols]
[0039] 1. Fishing reel (spinning reel) 1A Reel body 3 rotors 4 spools 4A Spool shaft 6 handles 8 pinion gear 10. Power transmission mechanism 20 bearings 20a Projection piece (first engagement part) 20b Recess (second engagement part) 50 Movement Control Department 51 Groove 60 RPM limiting section 61 Shaft member
Claims
1. A fishing reel having a drive member that is rotationally driven by the rotation of a handle provided on the reel body, and a bearing that rotatably supports the drive member relative to the reel body, The bearing comprises a first engaging portion and a second engaging portion. The first engaging portion engages with a movement restricting portion provided on the reel body, thereby restricting the axial movement of the bearing, and the second engaging portion engages with a rotation restricting portion provided on the reel body, thereby restricting the rotational movement of the bearing. The first engaging portion is provided radially outward of the bearing, and the second engaging portion is provided at a position opposite to the first engaging portion. The movement restricting portion is formed in the reel body and has a groove into which the first engaging portion fits, and the rotation restricting portion is disposed in the reel body and has a shaft member through which the second engaging portion is inserted. A fishing reel characterized by the following features.
2. The fishing reel according to claim 1, characterized in that the drive member is a pinion gear provided in a spinning reel, and the bearing is a collar member that supports the pinion gear at its rear end.
3. The first engaging portion is a projection that protrudes radially outward, The fishing reel according to claim 1, characterized in that the second engaging portion is a recess through which the shaft member is inserted.
4. The fishing reel according to claim 1, characterized in that the movement restricting portion into which the first engaging portion fits is provided with a fixing portion that identifies the fixed position of the first engaging portion.
5. The fishing reel according to Claim 1, characterized in that the movement restricting part and the rotation restricting part are provided on the bearing and the reel body respectively and have an engagement structure, and by engaging both engagement structures, the axial movement and rotational movement of the bearing are restricted.