JPH0646301Y2 - Loosening prevention device for drag adjustment knob of spinning reel for fishing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a loosening prevention device for a drag adjusting knob of a spinning reel for fishing.

(Prior Art) Conventionally, as a relaxation preventing device of this type, there is one disclosed in Japanese Utility Model Laid-Open No. 61-173271.

In this device, a braking member is provided in a recessed portion of a spool, a dish is slidably fitted to a spool shaft protruding forward of the braking member, and an adjusting knob is screwed on a tip of the spool shaft. While being worn, the adjusting knob is provided with a projecting piece that elastically engages with the concave and convex teeth formed on the inner circumference of the dish.

By doing so, it is possible to prevent the adjustment knob from loosening due to the engagement of the projection and the concave and convex teeth, and to prevent the drag force that has been set arbitrarily from becoming weak due to the adjustment knob becoming loose due to vibrations etc. during use of the reel. There is.

(Problems to be solved by the invention) According to the above-mentioned conventional loosening prevention device, in the direction in which the adjustment knob is tightened, the protrusion and the concave and convex teeth are always engaged to prevent the adjustment knob from loosening. When the knob is loosened, the protruding piece may slide toward the front of the dish and may come off the uneven teeth. In that case, there is a drawback that the loosening prevention effect cannot be obtained.

The present invention has been made in view of the above-mentioned conventional circumstances, and an object thereof is to prevent the protruding piece from sliding forward of the dish when the adjustment knob is loosened and the protruding and concave teeth. The purpose of this is to retain the engagement of and to obtain a more reliable relaxation prevention effect.

(Means for Solving the Problems) In order to achieve the above object, the loosening prevention device of the present invention has a braking member provided in the front concave portion of the spool, and a spool shaft protruding forward of the braking member is provided. , A dish body having concave and convex teeth formed on the inner circumference of the circumferential side is slidably fitted, and a bottomed cylindrical body provided with a projecting piece for elastically engaging the concave and convex teeth is pivotally and slidably inserted. The bottomed tubular body is provided with a tubular portion projecting forward at the rim of the shaft hole, and an adjustment knob is fitted and engaged with the tubular portion so as to be integrally rotatable and slidable in the axial direction. A nut member that is screwed into the threaded portion of the spool shaft tip is housed in a single body in a rotational manner, an elastic spring is provided between the adjustment knob and the nut member, and the recessed portion has a bottomed cylindrical body. It is characterized in that a pressing ring for restricting forward sliding is provided.

(Operation) According to the above means, the bottomed tubular body rotates integrally with the adjustment knob due to the engagement of the adjustment knob and the tubular portion, and the projection of the bottomed tubular body elastically engages the concave and convex teeth. To prevent the adjustment knob from loosening. At the same time, the presser ring prevents the bottomed cylindrical body from sliding forward, eliminating the risk that the protruding piece will come off the concave and convex teeth even when the adjustment knob is loosened, and protrudes forward of the presser ring. The tubular portion holds the adjustment knob and the engagement of the tubular portion.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, (1) shows a spool shaft, and (2) shows a spool rotatably attached to the spool shaft (1).

The spool (2) is provided with a recessed portion (2a) on the front surface, and a groove (2b) is formed vertically on the inner circumference of the recessed portion (2a), and a braking member (on the inner bottom of the recessed portion (2a) ( 3) is decorated.

The spool shaft (1) is provided with a slit in the portion protruding into the recess (2a), and the nut member (4) is provided at the tip of the slit (1a).
Forming a screw portion (1b) to which is screwed. Further, the dish body (5) is fitted into the slitting portion (1a), and the bottomed cylinder body (6) is fitted therein.

The braking member (3) is engaged with the groove (2b) and the washer (3a) fitted in the slit (1a) so as to come into contact with the inner bottom surface (2a ') of the recess (2a). Tongue (3b ')
And a friction plate (3c) inserted between the washer (3a) and the washer (3b).

The dish body (5) is fitted into the slit portion (1a) so as to come into contact with the braking member (3), and the concave and convex teeth (7) are formed on the inner periphery of the peripheral side portion (5a).

The bottomed cylindrical body (6) includes a peripheral wall portion (6a) having an outer diameter that can be rotated within the peripheral side portion (5a) of the dish body (5), and a bottom portion contacting and separating from the dish body (5) ( 6b) and a pair of through holes (6c) (6c ') facing each other in the peripheral wall (6a), and a shaft hole (6b') in the bottom (6b). Rotatably and slidably inserted in the split part (1a). A tubular portion (6d) protruding forward is integrally formed at the rim of the shaft hole (6b ').

Further, an annular spring (8) having a base end engaged with one of the through holes (6c ') is fitted into the peripheral wall portion (6a), and the annular spring (8) is inserted.
The projecting piece (8a) formed at the tip of is projected from the other through hole (6c) and elastically engaged with the concave and convex teeth (7) of the dish body (5).

As shown in FIG. 2, the cylindrical portion (6d) is formed in a frontal rectangular shape, and an adjusting knob (9) is fitted and fixed to the outer periphery of the cylindrical portion (6d) so as to be integrally rotatable and slidable in the axial direction.

The adjusting knob (9) has a rectangular hole (9a) slidably fitted in the cylindrical portion (6d) at the rear end, and a square hole (9b) slidably engaged with the nut member (4) at the tip. It is composed of a tubular portion (9 ') provided and a knob (9 ") fixed to the tip of the tubular portion (9'), and is provided between the nut member (4) and the edge of the rectangular hole (9a). Is elastically ejected toward the bottomed cylindrical body (6) through an elastic spring (10).

A pressing ring (11) for restricting the forward rotation of the bottomed tubular body (6) is fitted into the recess (2a).

The operation of the loosening prevention device of this embodiment will be described below. In the state shown in FIG. 1, the nut member (4) is at the tip of the screw portion (1b), and the adjustment knob (9) and the bottomed cylinder ( 6) is located in the front, the frictional force generated between the dish body (5) and the braking member (3) is small, and the drag force obtained by this is weak.

Next, when the adjusting knob (9) is rotated in the tightening direction, the nut member (4) that engages with the square hole (9b) is screwed toward the inner bottom of the recess (2a), and the elastic spring (10). ), The adjusting knob (9) elastically slides toward the dish (5).
Then, the bottom portion (6b) of the bottomed tubular body (6) is pressed against the dish body (5) to increase the frictional force between the dish body (5) and the braking member (3) to obtain a strong drag force. At the same time, the click sound is generated by the elastic engagement between the protruding piece (8a) of the annular spring (8) and the concave and convex teeth (7) of the dish body (5), and the free rotation of the bottomed cylindrical body (6) is prevented. To prevent loosening of the drag force set arbitrarily (Fig. 3).

Further, when the adjustment knob (9) is rotated in a direction of loosening, the adjustment knob (9) also slides forward as the nut member (4) is screwed toward the tip of the screw portion (1b), The drag force becomes weaker as the bottomed tubular body (6) moves away from the dish body (5). Further, at this time, the presser ring (11) has the bottomed cylindrical body (6).
To prevent the protruding piece (8) from coming off the uneven tooth (7) and prevent the slack of drag force similar to the above.

At the same time, the tubular part (6d) protruding forward is adjusted by the knob (9).
And the engagement of the bottomed cylindrical body (6) is held (Fig. 1).

(Effect of the Invention) Since the present invention is configured as described above, it has the effects described below.

Even when the drag force is weakened, the projection and the concave and convex teeth, and the adjustment knob and the tubular portion are surely engaged with each other. Therefore, even when the adjustment knob is loosened, a reliable loosening prevention effect can be obtained. , Can improve the reliability of the product.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIGS. 1 and 3 are vertical side views showing the operating state, and FIG. 2 is a sectional view taken along line (2)-(2) of FIG. In the figure, (2): spool, (2a): concave portion (3): braking member, (1): spool shaft (7): concave and convex teeth, (5): plate body (8a): protruding piece, (6): bottomed cylinder (6d): cylinder, (4): nut member (10): elastic spring, (11): presser ring

Claims (1)

[Scope of utility model registration request] Claims: 1. A brake member is provided in a recessed portion on the front surface of a spool, and a dish body having concave and convex teeth formed on the inner circumference of a circumferential side portion is slidably fitted to a spool shaft projecting forward of the brake member. At the same time, a bottomed cylindrical body provided with a protruding piece that elastically engages the concave and convex teeth is rotatably and slidably inserted, and a cylindrical portion protruding forward is provided at the axial hole edge of the bottomed cylindrical body. An adjusting knob is integrally fitted and engaged with the tubular portion so as to be integrally rotatable and slidable in the axial direction, and a nut member to be screwed with the screw portion of the spool shaft tip portion is accommodated in the adjusting knob in an integrally rotatable manner. A spinning spring for fishing, characterized in that an elastic spring is provided between the adjusting knob and the nut member, and a pressing ring for restricting forward sliding of the bottomed tubular body is provided in the concave portion. Loosening prevention device for reel drag adjustment knob.