JPH0242138Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Prior art) Snap rings made by integrally punching and bending each part from a single metal plate have already been developed since 1973.
-30466 and Utility Model Application Publication No. 59-145171 are disclosed.

(Problems to be Solved by the Invention) Since all of the above-mentioned known means are designed mainly for punching a metal plate, changes in the plate width of each part are limited to planar changes. Therefore, it has been difficult to ensure the springiness necessary for the range of motion of the engaging arm. In addition, Utility Model Publication No. 58-30466 has the disadvantage that it is difficult to engage the engaging arm, and the engagement is released when the thread is wound around the arm. On the other hand, even in the case of Utility Model Application No. 59-145171, since the engaging portion protrudes in a hook shape, there are drawbacks such as threads getting tangled in the protruding portion.

(Means for Solving the Problems) The present invention is a stop that consists of a hook portion having a connecting ring portion and an engaging arm, and is formed by integrally punching and bending a metal plate such as stainless steel. In the ring, the connecting ring part is formed into a shallow cylindrical shape, the free end of the connecting ring part is used as a separating wall between the connecting ring part and the hook part, and the other end of the connecting ring part is extended to form a hook having an engaging arm. A retaining hook is formed at the tip of the engaging arm to lock into an engaging groove formed in the separating wall. The hook part is used by being removably fitted to the connecting ring of a float, weight, device, etc., and the engaging arm of the hook part is squeezed to isolate the retaining hook part. When the aperture is loosened while being inserted into the engagement groove formed in the wall, the hook is locked in the engagement groove. When the engaging arm part is squeezed once from this locked state and the hook part is removed from the engaging groove, the engaging arm will float upward due to the elasticity of the engaging arm and return to the outside.

(Embodiment) An embodiment of the present invention will be described below with reference to FIG. 1. FIG. 1 is a perspective view showing a snap ring made by integrally punching each part into a band shape from a steel plate such as stainless steel, and performing bending processing to form each part integrally. Reference numeral 1 denotes a shallow cylindrical connecting ring, the free end of which is the separating wall 1a and has the widest wall width, while the other wall surfaces are the separating wall 1a.
It is formed so that the wall width becomes gradually narrower toward the opposite wall 1b of a. Reference numeral 2 denotes a hook portion bent into a U-shape, which is an extension of the end portion of the connecting ring portion adjacent to the free end of the separating wall. The free end side of the U-shaped hook portion 2 is an engaging arm 2a, and a retaining hook portion 3 is formed at the tip of the engaging arm 2a. The hook portion 3 detachably engages with an engagement groove 4 formed in the free end of the separation wall 1a. Both projecting pieces 4a, 4b of the engagement groove 4
One side is formed long and the other short, and the long protruding piece 4a abuts on the base of the hook part 2, that is, the end of the connecting ring part. Therefore, a space is formed between the short projecting piece 4b and the base of the hook portion, and serves as an introduction path for the engaging arm 2a.

(Effects of the invention) As described above, the present invention is made by punching each part into a band shape with a predetermined wall width and bending it, so that it has the springiness necessary for the range of movement of the engaging arm. This makes it easier to obtain, and a large gap is formed between the engaging arm and the connecting ring, making it easier to attach and detach floats, weights, lures, and the like. Further, since no protrusion is formed on the outer circumferential surface in the locked state, accidents due to thread entanglement do not occur. In addition, the shallow cylindrical connecting ring is made so that the wall width gradually narrows from the isolation wall side to the opposite wall, so when a thread or the like is tied to the connecting ring, the knot will be tied to the wall. It has a stabilizing effect on narrow areas.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a longitudinal sectional view of the same embodiment, and FIG. 3 is a plan view showing the developed state of the above embodiment. 1; Connecting ring part, 1a; Separation wall, 1b; Opposite wall,
2; Hook portion, 2a; Engagement arm, 3; Hook portion, 4; Engagement groove, 4a, 4b; Projection piece.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A snap ring consisting of a hook portion having a connecting ring portion and an engaging arm, and which is formed by integrally punching and bending a metal plate such as stainless steel; The ring part has a shallow cylindrical shape, the free end of the connecting ring part serves as a separating wall between the connecting ring part and the hook part, and the other end of the connecting ring part is extended to form a hook part having an engaging arm, A fishing snap ring characterized in that a retaining hook is formed at the tip of the engaging arm to engage with an engaging groove formed in a separating wall. 2. The fishing snap ring according to claim 1, wherein the connecting ring portion is formed so that the wall width gradually becomes narrower from the separating wall to the opposite wall.