JPH041810Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a click gear mounting structure for a double-bearing reel, and more specifically to a click gear mounting structure that is integrally rotatably mounted on one side of a spool.

(Prior Art) The mounting structure of a click gear in a double-bearing reel generally has a structure as shown in FIGS. 4 and 5.

That is, the spool shaft 10 is integrally fixed along the axis of the spool 9 by insert molding or the like.
A slot 11 is formed in the front oval shape on the circumferential surface of one side by milling, and a click gear 12 having a mounting hole 13 of the same shape is fitted to the shaft of the slot 11. The side end of the shaft portion 11 was crushed and the click gear 12 was caulked and fixed 15. The shaft portion 14 protruding outward from the slotted 11 shaft portion is cut to a shaft diameter corresponding to the shaft width of the slotted 11 shaft portion.

Therefore, with the above-mentioned structure, the spool shaft must be slotted or cut into a small diameter, which increases the cost. Since the side portions are cut to a smaller diameter than the outer diameter of the material of the spool shaft, there is a problem that center runout is likely to occur due to non-uniformity of the outer diameter on both sides of the spool shaft. Furthermore, since the click gear is fixed by caulking, it is completely impossible to replace it when it is damaged.

(Problems to be Solved by the Invention) In view of the above-mentioned conventional circumstances, the object of the present invention is to provide a structure in which a click gear can be attached to the spool shaft without slitting or cutting. .

(Means for Solving the Problems) The technical means of the present invention for solving the above problems is to provide a locking portion protruding from the spool side on the outer peripheral surface of the spool shaft, so that the spool shaft and the locking portion A retaining ring fitted to the spool shaft prevents the click gear from coming off, which has a mounting hole into which the part is inserted.

(Function) The click gear is fitted into the engagement part formed on the side of the spool and is prevented from rotating.The click gear is prevented from rotating in the axial direction by a retaining ring that is fitted and engaged with the spool shaft. The click gear can be attached, detached and replaced by attaching and detaching the ring.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. 1 is a spool for a double-bearing reel, and a spool shaft 2 is integrally fixed to the center of the shaft by insert molding. At the same time, one side 2a of the spool shaft 2 is extended longer than the other side 2b, and a slotted portion 8 for engagement with a pinion gear (not shown) is formed in the middle. On the outer surface of the spool 1, a substantially rectangular engaging portion 3a having a width narrower than the outer diameter of the material of the spool shaft 2 is located above and below the outer peripheral surface of the spool shaft 2.
3b is formed in a protruding manner, and the click gear 4 is prevented from rotating by these engaging portions 3a and 3b, and the click gear 4 is rotated integrally with the spool 1.

The click gear 4 has a spool shaft 2 at its center.
A mounting hole 5 is drilled into which the upper and lower engaging portions 3a and 3b fit, and the axial movement of the click gear 4 is prevented by a retaining ring 7 fitted in an annular groove 6 cut into the spool shaft 2. There is.

The retaining ring 7 has a substantially C-shaped front view, and is fitted into and removed from the annular groove 6 from the outside perpendicular to the axis of the spool shaft 2.

In addition, the above-mentioned engaging parts 3a and 3b are connected to the spool shaft 2.
It is not limited to the illustrated form in which the width is narrower than the outer diameter of the material, but it is of course possible to have a non-circular shape such as an oval cross section that is wider than the outer diameter of the spool shaft 2 and encompasses the spool shaft 2. In the case of the configuration shown in the drawings, there is an advantage that the outer diameter of the retaining ring 7 can be made small.

The other side 2b of the spool shaft 2 that protrudes outward from the retaining ring 7 has the outer diameter of the material as it is, and no cutting is required at all.

(Effects of the invention) As detailed above, the click gear mounting structure of the present invention has a hooking part formed on the side of the spool to prevent rotation of the click gear, and a retaining ring fitted to the spool shaft to prevent rotation in the axial direction. Since it is prevented from coming off, the click gear can be installed without cutting or slotting the click gear attachment part of the spool shaft, and the click gear can be replaced by attaching and removing the retaining ring, which is very convenient. It is.

In addition, since the spool shaft protrusion on the side where the click gear is attached uses the outer diameter of the width material, there is no problem of center runout caused by conventional cutting.
Stable rotation can be obtained, and since slitting and cutting are not required, costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the proposed mounting structure, Fig. 2 is a partially cutaway side view of the same, Fig. 3 is a sectional view taken along line 3-3 in Fig. 1, and Fig. 4 5 is a vertical sectional view showing a conventional structure, and FIG. 5 is a partially cutaway side view of the same. In the diagram, 1...Spool, 2...Spool shaft, 3
a, 3b...Latching portion, 4...Click gear, 5...
...Mounting hole, 6...Annular groove, 7...Retaining ring.

Claims (1)

[Scope of utility model registration request] A non-circular engaging part is formed on one end surface of the spool where the spool shaft is inserted and fixed along the axial center of the spool, and a click gear with a mounting hole drilled in the part into which the engaging part fits is integrally rotated. A click gear mounting structure in which a retaining ring is fitted into an annular groove formed on a spool shaft located outside the click gear to prevent the click gear from coming off.