WO2012088715A1

WO2012088715A1 - Pulling rope and processing method of its pivoting structure

Info

Publication number: WO2012088715A1
Application number: PCT/CN2010/080624
Authority: WO
Inventors: 叶宗殷
Original assignee: Yeh Tzong-In
Priority date: 2010-12-31
Filing date: 2010-12-31
Publication date: 2012-07-05

Abstract

A pulling rope and a processing method of its pivoting structure are disclosed. The pulling rope (1) comprises a rope body (2) and the pivoting structure (3). The pivoting structure (3) comprises a connector (30), two shells (31) and a first plastic element (32). The connector (30) has a cylindrical body (300) and a ball (301) fixed at one end of the cylindrical body (300), and the other end of the cylindrical body (300) is connected with the rope body (2). The two shells (31) are oppositely connected to form a cavity (310), an opening (311) communicated with the cavity (310) and a slit (312) formed in the connecting place of the two shells (31). The ball (301) is movably accommodated in the cavity (310) and correspondingly the cylindrical body (300) passes through the opening (311). The first plastic element (32) covers the outer surface of the two shells (31) and the two shells (31) are combined and fixed such that the connector (30) can rotate or wobble relative to the two shells (31).

Description

Method for manufacturing drawstring and its pivotal structure

The present invention relates to a pivotal structure, and more particularly to a method of manufacturing a drawstring and its pivotal structure. Background technique

In recent years, with the prevalence of sports, various water activities have gradually become popular, such as surf, windsurfing and riding water-skiing. In the case of surfing, a zipper is usually used to connect the surfers' feet and surfboards, and the pivotal structure on the ropes can be rotated or oscillated as the surfers change their postures. The structure of the connection structure is as disclosed in the following patents:

The Taiwan Patent No. M329607 "Improved Structure of Surf Safety Rope" discloses that a toggle mechanism has a rotating shaft and a toggle member, and the rotating shaft is connected between the toggle member and a connecting terminal. The toggle member is coupled to a socket such that a relative rotation between the connecting terminal and the toggle member is caused by a rotating shaft, and the toggle member is radially swingable relative to the socket.

Taiwan, China M258926 "Paperboard Drawstring Structure" patent case discloses a purpose of making a flexible rope body achieve a 360-degree stereo rotation through a buckle body and a cable sleeve. Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of making a drawstring and its pivotal structure which has better efficacy and higher manufacturing efficiency.

In order to achieve the above object, the present invention provides a drawstring comprising a cord body and a pivotal structure, the pivot joint structure comprising a connecting member, two shells and a first plastic member. The connecting member has a cylinder and a ball fixed to one end of the cylinder, and the other end of the cylinder is connected to the rope body. The two shells are butted to form a chamber, an opening and a slit. The opening is connected to the chamber. The gap is formed at the joint of the two shells. The ball is movably received in the chamber. Correspondingly, the opening is provided. The first plastic piece is completely covered on the outer surfaces of the two shells, and the two shells are combined and fixed to make the The connector can be rotated or swung relative to the two housings.

Preferably, the opening wall of the opening formed by the two shells is a surrounding inclined surface which is inclined from the outside to the center of the housing, and the diameter of the opening is larger than the diameter of the cylinder.

In order to achieve the above object, the present invention further provides a method for manufacturing a pivoting structure, the method comprising: providing a connecting member and two shells, the connecting member having a cylinder and a ball, wherein the ball is fixed on the One end of the cylinder; the two shells are butted to form a chamber and an opening connected to the chamber; the two shells are butted against the ball of the connecting member in the chamber; and outside the two shells A first plastic piece is completely covered on the surface to fix the two shells together.

Compared with the prior art, the present invention provides a method of manufacturing a drawstring and a pivoting structure thereof, the connector of the pivotal structure being freely rotatable or swingable relative to the two housings. Further, the present invention firstly couples the two shells to the ball of the connecting member, and cooperates with the injection molding process to firmly bond the plastic members to the two shells to improve the manufacturing efficiency of the pivoting structure.

Further invention and its effects will be disclosed in the following description. DRAWINGS

The following drawings are only intended to illustrate and explain the invention, and are not intended to limit the scope of the invention.

1 is a schematic view of a drawstring in accordance with the present invention.

2A is an enlarged cross-sectional view showing the pivotal structure of the drawstring of FIG. 1.

2B is a schematic view showing the rotation and swing of the pivotal structure of FIG. 2A.

Figure 3 is an exploded view of the connector of Figure 2A and the two housings.

FIG. 4 is a schematic view showing the assembly of the connecting member and the two housings of FIG. 2A.

FIG. 5 is a flow chart showing the process of manufacturing the pivotal structure according to the present invention.

Figure 6 is a schematic view of the application of the drawstring of Figure 1.

Main component label description: 1 drawstring 2 rope body

3 pivot structure 30 connector

31 housing 32 first plastic parts

300 cylinder 301 sphere

310 room 311 opening

312 slit 313 bevel

20 second plastic part 302 fixed structure

303 neck 304

4 sets of rings STS3 steps

1 and 2A show a preferred example of a pull cord 1 of the present invention, which includes a cord body 2 and a pivotal structure 3.

The pivoting structure 3 includes a connecting member 30, two shells 31 and a first plastic member 32. The connecting member 30 has a cylinder 300 and a ball 301 fixed to one end of the cylinder 300. The other end of the 300 is connected to the rope body 2. The two housings 31 are butted to form a chamber 310, an opening 311 and a slit 312. The opening 311 is connected to the chamber 310. The slot 312 is formed at the junction of the two housings 31. The ball 301 is movably received in the housing 310. The cylinder 300 is correspondingly disposed in the opening 311. . The first plastic member 32 is completely covered on the outer surface of the two housings 31, and the two housings 31 are fixedly coupled to enable the connecting member 30 to rotate or swing relative to the two housings 31, as shown in FIG. 2B. Shown.

FIG. 3 is an enlarged exploded view of the connecting member 30 and the two housings 31 of FIG. 2A. The connecting member 30 can be made of copper or other materials, but in fact, the cylindrical body 300 and the spherical body 301 can also be made of different materials, and then the spherical body 301 and the cylindrical body 300 are integrally connected.

The two housings 31 are preferably made of steel, Teflon or other wear resistant materials. A lip of the two housings 31 is interconnected to enable the two housings 31 to open or close. FIG. 3 shows a state in which the two housings 31 are opened to receive the ball 301 of the connecting member 30. FIG. 4 shows that the sphere 301 is received by the sphere 301. A schematic view of the two housings 31.

The diameter of the opening 311 formed by the two shells 31 is larger than the diameter of the cylinder 300, and the wall of the opening 311 formed by the two shells 31 is a surrounding inclined surface 313. The slope 313 is from the outside to the inside. The center of the casing 31 is inclined so that the cylinder 300 of the connecting member 30 can swing at a large swing range at the opening 311, and the rope body 2 can be smoothly rotated or swung.

Referring to FIG. 1 and FIG. 2A, the rope body 2 has a second plastic member 20, and the other end of the cylinder 300 of the connector member 30 has a fixing structure 302. The second plastic member 20 is coupled to the fixing structure 302 and The rope body 20. The second plastic member 20 and the rope body 2 may be the same plastic material, but not limited thereto.

The fixing structure 302 includes at least one neck 303 and at least two discs 304. The neck 303 is fixed between the two discs 304, and the two discs 304 face to face. However, the fixing structure 302 may also be in other forms, and is not limited thereto. The combination of the neck portion 303 and the plurality of discs 304 allows the second plastic member 20 to be more firmly coupled to the fixing structure to prevent the cord body 2 from being pulled too much by external force when the cord 1 is used. The pivot structure 3 is separated.

FIG. 5 is a flow chart showing the manufacturing process of the pivoting structure 3 of the present invention. The manufacturing method of the pivoting structure 3 is as follows: First, the step S1 is performed to provide the connecting member 30 and the two housings 31. Then, the step S2 is performed to butt the two shells 31 to fit the ball 301 of the connecting member 30 in the chamber 310. Finally, in step S3, the first plastic member 32 is integrally formed on the outer surface of the two casings 31 by injection molding to bond and fix the two casings 31. The first plastic member 32 is preferably integrally coated on the outer surfaces of the two casings 31 by injection molding or immersion.

Therefore, the manufacturing method of the pivoting structure 3 of the present invention only needs to open the two housings 31, directly sleeve the ball 301 of the connecting member 30, and press the two housings 31 to make the two shells The body 31 encloses the ball 301, which means that the assembly is extremely simple, so that the assembly efficiency can be improved. Further, when the assembly is completed, the injection molding is directly performed, so that the plastic members can be combined and fixed to the two housings 31 to improve the production efficiency and reduce the cost of the pivotal structure.

In practical applications, the drawstring 1 can be used in a variety of applications. For example, the first of the pivot structure 3 A plastic part 32 is combined with a set of rings 4, as shown in Fig. 6; or the two rope bodies 2 are connected by the pivotal structure 3, as shown in Fig. 7. When the rope body 2 is rotated or swung, the ball 301 of the connecting member 30 is rotated or swung relative to the two casings 31, so that the rope body 2 can be freely moved freely.

In summary, the drawstring of the present invention and the pivoting structure thereof can be freely rotated or swung relative to the two housings. Further, the present invention firstly fits the two housings to the ball of the connecting member, and cooperates with the injection molding process to firmly bond the plastic members to the two housings to improve the manufacturing efficiency of the pivoting structure.

The above description is only illustrative of the specific embodiments of the present invention, and is intended to be illustrative of the scope of the invention. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

Claim

A drawstring, characterized in that the drawstring comprises:

a rope; and

a pivoting structure comprising a connecting member, two shells and a first plastic member, the connecting member having a cylinder and a ball fixed to one end of the cylinder, the other end of the cylinder connecting the rope body The two shells are butted to form a chamber, an opening and a slit, the opening is connected to the chamber, the gap is formed at the joint of the two shells, and the ball is movably received in the chamber, the column The first plastic member is integrally wrapped on the outer surface of the two shells, and the two shells are combined and fixed to enable the connecting member to rotate or swing relative to the two shells. .

2. The drawstring of claim 1 wherein the diameter of the opening formed by the two housings is greater than the diameter of the cylinder.

The drawstring according to claim 1 or 2, wherein the opening wall of the opening formed by the two shells is a circumferential bevel which is inclined from the outside to the center of the casing.

The drawstring according to claim 1, wherein the cord body has a second plastic member, and the other end of the post of the connector has a fixing structure, and the second plastic member is coupled to the fixing structure and The rope body.

The cord according to claim 4, wherein the fixing structure comprises at least one neck and at least two discs, the neck is fixed between the two discs, and the two discs face each other For the settings.

A method for manufacturing a pivotal structure, wherein the method for manufacturing the pivotal structure comprises: providing a connecting member and two shells, the connecting member having a cylinder and a sphere, the spherical body being solid Provided at one end of the cylinder; the two shells are butted to form a chamber and an opening connected to the chamber;

Abutting the two housings against the ball of the connecting member in the housing;

A first plastic member is completely covered on the outer surfaces of the two casings to fix the two casings.