US20060231665A1

US20060231665A1 - Wire-winding device with smooth outlets

Info

Publication number: US20060231665A1
Application number: US11/107,701
Authority: US
Inventors: Sung Wu
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-18
Filing date: 2005-04-18
Publication date: 2006-10-19

Abstract

A wire-winding device with smooth outlets comprises an upper cover; a lower cover; a rotary unit; a wire winding around the rotary unit; two sliding units installed at two ends of the wire-winding device and at the inner sides of the upper cover and lower cover; each sliding unit having two retaining shafts and two hollow rollers; two retaining shafts of one sliding unit being installed at one end of the lower cover; each retaining shaft being installed with a hollow roller; the upper cover having two retaining holes corresponding to the two retaining shafts of the lower cover; and a via hole being formed between two hollow rollers so that the wire passes through the via hole to protrude out of the wire-winding device.

Description

FIELD OF THE INVENTION

The present invention relates to wire-winding devices, and in particular to a wire-winding device with smooth outlets, wherein the wire can be wound or received smoothly by the hollow rollers so that the wear of the wire-winding device is smaller and thus, the wire-winding device has a longer lifetime.

BACKGROUND OF THE INVENTION

Referring to FIGS. 1 and 1-1, the prior art wire-winding device is illustrated. In this prior art, the wire 11 protrudes out of the wire-winding device 1 from the via holes 14 at two sides of the upper cover 12 and the lower cover 13. In use, the wire 11 is pulled out of the wire-winding device 1. If the wire-winding device is not used, the wire 11 is received within the wire-winding device 1.
Above mentioned prior art has the following disadvantages. The peripheries of the via holes are sharp so that the wire will wear and the wire cannot be pulled out or received smoothly. Furthermore, the signal transferred through the wire will be deteriorated so that the whole wire-winding device will be abandoned.

SUMMARY OF THE INVENTION

Accordingly, the object of the present invention is to provide a wire-winding device with smooth outlets, wherein the wire can be wound or received smoothly by the hollow rollers so that the wear of the wire-winding device is smaller and the wire-winding device has a longer lifetime.
To achieve above object, the present invention provides a wire-winding device with smooth outlets which comprises an upper cover; a lower cover; a rotary unit; a wire winding around the rotary unit; two sliding units installed at two ends of the wire-winding device and at the inner sides of the upper cover and lower cover; each sliding unit having two retaining shafts and two hollow rollers; two retaining shafts of one sliding unit being installed at one end of the lower cover; each retaining shaft being installed with a hollow roller; the upper cover having two retaining holes corresponding to the two retaining shafts of the lower cover; and a via hole being formed between two hollow rollers so that the wire passes through the via hole to protrude out of the wire-winding device. When the upper cover is combined to the lower cover, the retaining shafts of the lower cover are engaged to the corresponding retaining holes of the upper cover so that the two hollow rollers are rotatable along the two retaining shafts, respectively. Thus, by the rolling of the two hollow rollers, the wire can be received in or pulled out of the wire-winding device so that the wire can slide smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a prior art wire-winding device.
FIG. 1-1 is an exploded view of the prior art wire-winding device.
FIG. 2A is an exploded view of wire-winding device of the present invention.
FIG. 2B shows another exploded view of the wire-winding device of the present invention.
FIG. 3 is a perspective view of the wire-winding device of the present invention.
FIG. 4 is a cross sectional view about the wire-winding device of the present invention.
FIG. 5 is a schematic view showing another embodiment of the wire-winding device of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

In order that those skilled in the art can further understand the present invention, a description will be described in the following in detail. However, these descriptions and the appended drawings are only used to cause those skilled in the art to understand the objects, features, and characteristics of the present invention, but not to be used to confine the scope and spirit of the present invention defined in the appended claims. Referring to FIGS. 2A, 2B, 3 and 4, the wire-winding device of the present invention is illustrated. The present invention includes the following structure.
An upper cover 21, a lower cover 22 and a rotary unit 23 are included in the present invention. A wire 24 winds around the rotary unit 23.
Two sliding units are installed at two ends of the wire-winding device and are at the inner sides of the upper cover 21, and lower cover 22. Each sliding unit has two retaining shafts 25 and two hollow rollers 26. Two retaining shafts 25 of one sliding unit are installed at one end of the lower cover 22. Each retaining shaft 25 is installed with a hollow roller 26. The upper cover 21 has two retaining holes 27 corresponding to the two retaining shafts 25 of the lower cover 22. When the upper cover 21 is combined to the lower cover 22, the retaining shafts 25 of the lower cover 22 are engaged to the corresponding retaining holes 27 of the upper cover 21 so that the two hollow rollers 26 are rotatable along the two retaining shafts 25, respectively. A via hole 28 is formed between two hollow rollers 26 so that the wire 24 passes through the via hole 28 to protrude out of the wire-winding device. Thus, by the rolling of the two hollow rollers 26, the wire 24 can be received in or pulled out of the wire-winding device so that the wire 24 can slide smoothly.
Referring to FIG. 5, another embodiment of the present invention is illustrated. In this embodiment, a connector 3 is installed at one end of the wire 24 and another end of the wire 24 is installed with an earphone 4. Or two ends of the wire 24 are installed with different electronic devices.
In the present invention, the wire 24 can be wound or received smoothly by the hollow rollers 26 so that the wear of the wire-winding device is smaller and the wire-winding device has a longer lifetime.
Advantages of the present invention will be described in the following. By the present invention, the wire can be pulled out of or received into the wire-winding device smoothly. The hollow rollers makes that the wire-winding device can be used for a longer time. Thereby the structure of the present invention is simple.
The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.

Claims

1. A wire-winding device with smooth outlets comprising:

an upper cover having a round central portion and two extending portion symmetrically extending from an upper side and a lower side of a round portion;

a lower cover having a round central portion and two extending portion symmetrically extending from an upper side and a lower side of a round portion;

a rotary unit installed between the upper cover and the lower cover;

a wire winding around the rotary unit;

two sliding units installed at the two extending portions of the upper cover and lower cover;

each sliding unit including:

two round cylindrical retaining shafts; two retaining shafts of one sliding unit being installed at one end of the lower cover;

each retaining shaft being installed with a round cylindrical hollow roller;

the upper cover having two round cylindrical retaining holes corresponding to the two retaining shafts of the lower cover; and

a via hole being formed between two hollow rollers so that the wire passes through the via hole to protrude out of the wire-winding device;

wherein when the upper cover is combined to the lower cover, the retaining shafts of the lower cover are engaged to the corresponding retaining holes of the upper cover so that the two hollow rollers are rotatable along the two retaining shafts, respectively; thus, by the rolling of the two hollow rollers, the wire can be received in or pulled out of the wire-winding device so that the wire can slide smoothly.

2. The wire-winding device with smooth outlets as claimed in claim 1, wherein two ends of the wire are connected with respective devices.