JPS6119664Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a spool for a fishing spinning reel in which a polygonal concave portion of a synthetic resin spool is reinforced with an elastic metal plate.

In contrast to conventionally heavy metal spools, lightweight spools made of synthetic resin have been proposed. However, with a synthetic resin spool, the corner of the concave part of the spool that touches the locking part of the drag brake plate is deformed due to the frictional heat generated between the drag brake plate and the lining washer, and the rotational force of high torque. Since it is no longer locked at the locking part, the friction between the lining washers will not work and the drag force will be weakened, and the locking part of the drag brake plate will bite into the corner of the spool recess so tightly that it will not be able to be removed. There are drawbacks such as. In order to solve these drawbacks, a spool in which a metal pipe tube is inserted and fixed into a recessed part of a synthetic resin spool has been proposed in Japanese Utility Model Publication No. 16457-1982 and Publication No. 17824-1987. In the former, a cylinder is fitted and fixed, and in the latter, a cylinder is fitted and fixed, and protrusions are provided at two locations protruding outward. However, if the cylinder is simply inserted and fixed, it will come loose due to frictional heat and high torque, and the corners of the two protrusions will be deformed as described above. Furthermore, insert molding of a metal pipe tube makes it heavy, cracks may occur due to insert molding, and there are disadvantages in that the thickness of the insert metal is reduced and the thickness of the synthetic resin material at key points becomes thinner.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, an object of the present invention is to propose a spool for a fishing spinning reel that has a simple structure and less deformation of the concave corner portions.

Hereinafter, the present invention will be explained with reference to the illustrated embodiments. As shown in FIGS. 1 and 2, an engagement plate 2 is fixed to a spool shaft 1 which is protruded from the front surface of a reel body and is movable back and forth. A spool 3 is rotatably fitted to the front side of the engagement plate. A slotted surface 1a is formed on the front outer periphery of the spool shaft 1, and a screw 1 is formed on the front outer circumference of the spool shaft 1.
b is carved, and a drag adjustment knob 5 is screwed onto the spool shaft 1 with the spool 3 and drag braking member 4 interposed therebetween.

The spool 3 is made of a synthetic resin material, and has a concave portion 3a having a polygonal inner circumference formed on its front surface.
An elastic metal plate 6 bent into a polygon according to the shape of the recess 3a is fitted into the recess 3a, and the drag braking member 4 is fitted into the space surrounded by the elastic metal plate. A plurality of protrusions 6a are provided on one side of the elastic metal plate 6 to protrude.

The drag braking member 4 is formed by a drag braking plate 7 whose circumference is the same shape as the polygonal elastic metal plate material and whose center hole is a round hole, and an inscribed circle of the space surrounded by the elastic metal plate material. It consists of a drag brake plate 8 having a rotational hole on the shaft 1, and a lining washer 9 with a round hole having the same shape as the drag brake plate 8.

Drag braking member 4 on the synthetic resin spool 3
When it is assembled, an elastic metal plate 6 bent into a polygon is fitted into the concave portion 3a having a polygonal inner periphery, and is prevented from coming off by the elastic expansion force of the metal plate 6, and is surrounded by the elastic metal plate. Inside the space are a lining washer 9, a drag braking plate 8 having a detent hole, a lining washer 9, a drag control plate 7 with a round hole having a polygonal periphery, a lining washer 9, and a drag braking plate 8 having a detent hole. are inserted in order. After the drag braking member is inserted, the protruding piece 6a is bent to prevent the drag braking member from coming off.

When the spool of a fishing spinning reel is configured as described above and the drag adjustment knob 5 is screwed and tightened, the spool 3 and the drag braking member 4 are interposed between the spool 3 and the engagement plate 2 of the spool shaft 1 to control the drag. Power acts on the spool. When the spool is rotated against the drag braking force with the fishing line wound around the spool, each lining washer 9, the drag braking plate 7 having a polygonal circumference and a round hole, and the drag braking plate having a rotation prevention hole. 8, and the drag braking force is adjusted by the drag adjustment knob 5 according to the pull of the prey hooked on the trap. At this time, even if frictional heat is generated between the lining washer 9 and the drag brake plates 7 and 8, the polygonal concave portion 3 of the spool
Since the polygonally bent elastic metal plate 6 and drag brake plate 7 are in contact with each other at a plurality of lines and planes, the torque is dispersed and no deformation occurs at the corners of the recess.

In the above explanation, the protrusion 6a was provided on the elastic metal plate 6 to prevent the drag braking member 4 from coming off.
A retaining ring may be attached to the opening side of the spool concave portion 3a to prevent it from coming off. However, if a circumferential groove for the retaining ring is provided, cracks may occur from this circumferential groove, and preventing the retaining ring from coming off with a protruding piece is effective in increasing the strength of the spool.

Since the present invention is constructed as described above, it is lightweight and inexpensive to form compared to metal insert molding, etc., and the spool can be thickened at key points, and the inner peripheral polygonal recess has polygonal bending elasticity. A spinning reel spool for fishing that has excellent practical effects such as minimal deformation of the corners of concave parts because the metal plate material and the drag braking plate with peripheral polygonal round holes are fitted together so that they are in contact with multiple lines and surfaces and there is little deformation of the corners of the concave parts. can be provided.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional side view of the spool of a fishing spinning reel, and FIG.
The figure is an exploded perspective view of the spool and the drag braking member. 3...Synthetic resin spool, 3a...Inner periphery polygonal concave portion, 6...Elastic metal plate material, 7...Outer periphery polygonal center round hole drag braking plate, 8...Drag braking plate having a rotation stopper hole. , 9...Lining washers.

Claims (1)

[Scope of utility model registration request] A recess with a polygonal inner periphery is provided on the front surface of the synthetic resin spool, an elastic metal plate bent into a polygon is fitted into the recess, and a space surrounded by the elastic metal plate is filled with an elastic metal plate having the same shape as the elastic metal plate. A spool for a spinning reel for fishing, in which a drag braking plate with a center round hole in an outer circumferential polygon, a lining washer in an inscribed circle of the space, and a drag braking plate having a hole for stopping rotation around the spool shaft are respectively fitted.