JPS60143219A - Eggplant ring made of synthetic resin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to a plastic eggplant ring.

As is well known, an eggplant ring consists of a main body with a hook at its tip, and a claw that extends from the base of the main body toward the hook and normally closes the hook by abutting the tip against the inner surface of the 7-piece using spring force. For example, in bags, the bag body and shoulder strap are used to detachably connect a band or the like.

Conventional eggplant rings are mainly made of metal, with the main body and claws molded separately, and the claws attached to the base of the main body. The claw is generally made of a leaf spring, and by attaching it by caulking it to the base of the main body, the tip comes into contact with the inner surface of the hook due to its own elasticity. There are also hooks in which the claws are biased with a tool such as a hook, and the tips of the claws are brought into contact with the inner surface of the hook.

In any case, conventionally, there were two parts: the main body and the pawl made of a leaf spring.
Alternatively, it consists of four parts: a main body, a claw, a pin, and a biasing spring, and each part must be manufactured separately from metal and then assembled, making manufacturing time-consuming and expensive. Furthermore, the shapes of each part are complex and it is difficult to mold them with plastic.

Therefore, the present invention provides a main body having a hook formed in a folded shape at one end, and extending from the base of the main body toward the hook,
The hook, which normally uses a spring force to bring the tip into contact with the inner surface of the hook to close the hook, is integrally molded from synthetic resin, making it easy to manufacture and assemble the hook, and is lightweight.
Furthermore, the present invention aims to provide an inexpensive eggplant ring having strength equivalent to that of metal.

Furthermore, in addition to this, the present invention takes into consideration the connection between the main body and a ring member used for fastening bands, etc., and the rear end of the main body is integrally provided with a leg portion having an enlarged head at the tip. The other ring member is provided with a mounting hole through which the enlarged head is reduced in diameter, and by inserting the enlarged head into the mounting hole, the main body and the ring member can be connected with a single touch. , can be connected to each other rotatably around the legs,
This prevents damage even if a force is applied in a complicated direction to the connected belts or bands.

The present invention will be described below with reference to the drawings.

1 to 5 show an example of an eggplant ring made of synthetic resin according to the present invention, and the eggplant ring includes a hook member 2 that can releasably bite into an object such as a ring, and a rear end of the hook member 2. It is composed of two parts: a ring member 3 connected to the end and used for fastening bands, belts, etc., and both parts are integrally molded individually from synthetic resin.

The above-mentioned hook part jS2 is centered around a flat main body,
A folded, approximately J-shaped hook j is formed at one end, and a curved, folded, approximately horizontal U-shaped base gu' is extended from the other end, and a hook j is formed at the tip of the base part 9'. A claw 6 extending toward the tip 5' of the seven claws S is formed. The tip 6' of the claw 6 collides with the inner surface of the tip j' of the hook from below, and the tip 6' is normally hooked by the spring force! It comes into elastic contact with the inner surface and closes the hook j.

Further, a leg portion 7 for connection with the ring member 3 described above is provided protrudingly on the outside of the base portion v' of the main body. The leg portion 7 consists of a cylindrical neck portion with a narrow and constricted base, and an enlarged head portion 9 with a large diameter protruding from the tip of the neck portion r, and a vertical groove 10 is formed from the end surface of the enlarged head portion wa toward the base portion. The vertical groove 10 forms a plurality of legs 7, and in this case, a single vertical groove forms a pair of left and right divided pieces.

Divide into l/.

Correspondingly, the ring member 3 described above has -
A through-shaped attachment hole /2 is provided on the side 3', through which the enlarged head portion of the leg portion 7 passes through with a reduced diameter.

The present invention comprises the above-described structure, and the manufacturing process of the hook member will now be explained with reference to FIGS. 4-5.

In the molded state, the tip 6' of the hook 2 of the hook member 2 overlaps the outer surface of the tip j' of the hook S with a distance of /3 as shown in FIG. In order to mold the hook member λ, which has the main body and the claw t as one body, out of plastic, the parting line (parting line) /v shown in Fig. 2 should be the joint of the mold. Mold/! ； 、
/ Casting flask #' for forming each half of the eggplant ring on the opposite surface of B,
To form molds # and ' (Fig. 5), put together both molds /j and #; and inject plastic into flasks /S' and /4', then open molds /3 and /4. Just take it out. The plastics used for this injection molding include reinforced plastics called engineering plastics such as boria heptatal, polyamide, and polyoxymethylene.

In addition, when implementing it, reinforcing ribs /
It is desirable to have 7 integrally raised to provide strength.

The hook member 2 shown in FIG. 4 formed in this way is then turned into a hook by deflecting the claw 6 to the side of the hook j and applying downward pressure at the same time. Press down on the inner surface of the As a result, the claw 6 attempts to return to its original state with its own elasticity, and the tip 6' of the claw 6 elastically contacts the inner surface of the 7 claw S, resulting in the completed state as shown in Figure 1. (Press the claw 6 to connect the inner surface of the hook S and the tip of the claw ＼end 6
By creating a space between the two rings, the ring/r to be connected can be inserted and removed, and the claws can be removed by releasing the force.

The tip 6' of the hook again comes into elastic contact with the inner surface of the hook j.

That is, according to the above manufacturing method, the claw 6 is molded integrally with the main body V from plastic so that its tip 6' overlaps the outer surface of the hook S with a slight interval, and then the tip 6' of the hook S is molded integrally with the main body V.
, hook! The hook member 2 is completed by applying downward pressure while deflecting it sideways and inserting it into the hook, and bringing the tip 6' into contact with the inner surface of the hook 5 using the returning elastic force of the hook 5.

In addition, when molding the hook member, it is also possible to put the tip 6' of the claw A into the hook 5 and mold the claw 6 integrally with the main body V from plastic. In this case, as described above, the claw It is possible to omit the work of pushing the t into the inner surface of the hook j, but it is necessary to maintain a minimum distance of about 1+m between the tip 6' of the hook 5 and the inner surface of the 7 hook 5. When the ring II is inserted and connected, there is a risk that the connection will come off.

Therefore, in the present invention, the tip t' of the claw is hooked! A claw 6 is formed integrally with the main body with a slight interval on the outer surface of the
In the next step, the structure was such that □ was inserted into the fufta, so the claw 6
Due to the memory properties of the synthetic resin, the tip 6' is brought into contact with the inner surface of the hook 5 due to an elastic return force that causes it to return to a position slightly above the outer surface of the hook 5. Therefore, the claw 6 always closes the hook 3 in contact with the inner surface of the hook S, and functions in the same way as a conventional metal eggplant ring.

Furthermore, compared to conventional metal hook members, the hook member 2 described above can be made by injection molding of plastic, is lightweight, can be colored into any color by mixing coloring matter with the plastic raw material, and is easier to assemble. It has many excellent features such as being easy to use.

Next, the assembly of the completed hook member λ and the ring member 3 will be described.

The leg portion 7 of the hook member 2 may be aligned with the access hole 12 of the ring member 3 molded from plastic, and the hook member 2 may be inserted as is. The enlarged head part 9 of the leg part 7 engages with the hole edge of the mounting hole 12, and the left and right divided pieces //, I/ elastically contract inward, and the enlarged head part 7 engages with the hole edge in a state in which the diameter of the enlarged head part is reduced. When the enlarged head 9 passes through the hole edge, the left and right divided pieces //, // expand outward due to elastic force, and the hook member 2 attaches the leg part 7 to the mounting hole 12 of the ring member 3. The ring member 3' is irreversibly restrained by the enlarged head 9, and is rotatably connected around the neck l of the leg 7.

Therefore, the hook member 2 and the ring member 3 are connected to be rotatable relative to each other around the leg part 7,
Ring attached to ring member 3 or hook member 2/Ir
Even if a force in a complicated direction is applied to the belt or bands connected to the hook member 2 and the ring member 3, the hook member 2 and the ring member 3 can handle the force without twisting and without being damaged.

In the above-described embodiment, the leg portion 7 is provided with a single vertical groove 1.
In the above explanation, the case is explained in which it is divided into a pair of left and right divided pieces /I, //, but the invention is not limited to this, it is also possible to intersect the vertical grooves to form two pieces and divide it into four divided pieces, or It may have a substantially donut-shaped hollow structure, or the legs may have a hollow structure and be divided into a plurality of divided pieces by vertical grooves.

Furthermore, although one side 3' of the ring member 3 in which the mounting hole 12 is formed has been described as being of a fixed type, the present invention is not limited to this.
It may be supported so that it can rotate at both ends. In this case, the hook member 2 and the ring member 3 are
Since the hook member λ and the ring member 3 can be relatively rotated around the side 3', the degree of freedom between the hook member λ and the ring member 3 can be further increased.

In summary, according to the present invention, the main body has a hook formed in a folded shape at one end, and the main body extends from the base of the main body toward the hook, and the tip is normally brought into contact with the inner surface of the hook by spring force to close the hook. Since the conditioner and the claws are integrally molded from synthetic resin, they are easy to manufacture and assemble.
In addition, it is possible to provide an inexpensive synthetic resin eggplant ring that is lightweight and has strength equivalent to that of metal.

Further, according to the present invention, a leg portion having an enlarged head at the tip is integrally protruded from the rear end of the main body, and a mounting hole is provided in the ring member through which the enlarged head is reduced in diameter. Because
By inserting the enlarged head into the attachment hole, the main body and the ring member can be connected with one touch, making assembly easy. In addition, since the main body and the ring member are connected so that they can rotate relative to each other around the legs, even if a force is applied in a complicated direction to the connected belt or band, the two will not be twisted and will not be damaged. It can be prevented.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an exploded perspective view, FIG. 2 is a plan view of the assembled state, FIG. 3 is a side view of the same, and FIG. 4 is a diagram of the hook member in the molded state. The side view and FIG. 5 are cross-sectional views of the molding die taken along the line ■-■ as above. l... eggplant ring, 3... ring member, ≠... main body,
ψ′...Base, 5...Hook 31...Tip,
6...claw, 6'...tip, 7...leg, rib...
Enlarged head, /2...Mounting hole. Figure 3

Claims (1)

[Scope of Claims] A main body having a hook formed in a folded shape at one end, extending from the base of the main body toward the hook, and normally closing the hook by bringing the tip into contact with the inner surface of the hook by spring force. A synthetic resin eggplant consisting of a holding claw and a ring member connected to the other end of the main body to fasten a band, and which releasably bites an object into the seven claws of the main body by tilting the claw. The ring member is provided with a leg having an enlarged head at its tip integrally projecting from the end of the main body, and a mounting hole through which the enlarged head is reduced in diameter is provided in the ring member. . A synthetic resin eggplant ring, characterized in that the leg portions are inserted into the attachment holes to connect the main body and the ring member rotatably about the leg portions.