USB plug with a multi-directional rotation structure

[0001] 1. Field of the Invention

[0002] The present invention relates to a USB plug with a multi-directional rotation structure. More particularly, the present invention relates to a USB plug with a multi-directional rotation structure, adopted for a portable electronic device and being manipulated with no angular limitations.

[0003] 2. Background of the Invention

[0004] The USB (Universal Serial Bus) interface, which has functions of PNP (Plug and Play), hot insertion/hot swapping and the like, is the most popular data transmission interface applied for peripheral devices nowadays. More and more peripheral devices include a USB interface to increase the expandability thereof for various applications.

[0005] Referring to FIG. 1, a conventional electronic product 71 has a plurality of USB ports 81 disposed therein and arranged in a spaced manner. The conventional electronic product 71 usually is just applicable for a plurality of conventional cables 51 respectively having at least one USB interface to plug at the same time. If there is a need to plug in a plurality of conventional portable electronic devices 61, each having at least one USB interface and a fixed volume, the USB ports 81 cannot be used completely because that there is insufficient space to plug in the conventional portable electronic devices 61 at the same time.

[0006] With respect to FIG. 2 and FIG. 3, a conventional USB plug can be improved to provide a rotation structure adjustable for various objects. In FIG. 2, a first conventional rotational USB plug 1 with an X-axis rotation includes a body 11, a first mating face 14 disposed on an edge of the body 11, a plug 12 connecting the body 11, a second mating face 15 disposed on an edge of the plug 12 and corresponding to the first mating face 14, a USB interface 121 formed on an opposing edge of the plug 12, and a pivot 13 vertically disposed both on the first mating face 14 and the second mating face 15. The first conventional rotational USB plug 1 uses the pivot 13 (X-axis), which is rotated around by the plug 12, and provides an adjustable attitude.

[0007] As illustrated in FIG. 3, a second conventional rotational USB plug 2 with a Y-axis rotation, includes a body 21, a first mating face 24 disposed on an edge of the body 21, a plug 22 connecting the body 21, a second mating face 25 disposed on an edge of the plug 22 and corresponding to the first mating face 24, a USB interface 221 formed on an opposing edge of the plug 22, and a pivot 23 parallel connecting both the first mating face 24 and the second mating face 25. The second conventional rotational USB plug 2 uses the pivot 23 (Y-axis), which is rotated around by the plug 22, and provides an adjustable attitude.

[0008] However, the first conventional rotational USB plug 1 and the second conventional rotational USB plug 2 mentioned above can be used around only one axis (respectively around the X-axis and the Y-axis) and are restricted in other directions. The first conventional rotational USB plug 1 and the second conventional rotational USB plug 2 cannot be used with electronic products and computers having a plurality of USB ports in various ways.

[0009] The object of the invention is therefore to provide a USB plug with a multi-directional rotation structure adopted for a portable electronic device and mating with an electronic product having a USB port. The USB plug includes a first hollow spherical housing and a second hollow spherical housing relative to the first hollow spherical housing, and uses an internal diameter of the second hollow spherical housing longer than an external diameter of the first hollow spherical housing for the first hollow spherical housing partially wrapped in the second hollow spherical housing. The first hollow spherical housing has a retaining rim sliding and in contact with the second hollow spherical housing for adjusting a relative displacement therebetween, and thus the second hollow spherical housing can be manipulated with no angular limitations and rotated in multiple directions.

[0010] According to the invention, this object is achieved by a USB plug with a multi-directional rotation structure, adopted for a portable electronic device. The invention is used for mating with an electronic product having a USB port. The USB plug with a multi-directional rotation structure, includes a main body, a USB mating body relative to the main body, a USB interface disposed on an end of the USB mating body, a first hollow spherical housing connecting the main body, and a second hollow spherical housing connecting the USB mating body. The present invention uses an internal diameter of the second hollow spherical housing longer than an external diameter of the first hollow spherical housing for the first hollow spherical housing partially wrapped in the second hollow spherical housing. The second hollow spherical housing includes an aperture diameter shorter than the external diameter of the first hollow spherical housing to prevent the second hollow spherical housing from escaping out of the first hollow spherical housing. The first hollow spherical housing has a retaining rim sliding on and contacting the second hollow spherical housing for adjusting a relative displacement therebetween, and thus the second hollow spherical housing can be manipulated with no angular limitations and rotated in multiple directions. The objects for orientating the USB plug in a suitable attitude and resolving an arrangement of peripheral apparatuses mating with the electronic product are therefore achieved.

[0011] To provide a further understanding of the invention, the following detailed description illustrates embodiments and examples of the invention. Examples of the more important features of the invention thus have been summarized rather broadly in order that the detailed description thereof that follows may be better understood, and in order that the contributions to the art may be appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject of the claims appended hereto.

[0020] Referring to FIG. 4 to FIG. 7, the present invention provides a USB plug 3 with a multi-directional rotation structure, adopted for a portable electronic device 6 (shown in FIG. 7) and mating with an electronic product 7 having a USB port 8. With reference to FIG. 4, the USB plug 3 with a multi-directional rotation structure includes a main body 31 and a USB mating body 32 relative to the main body 31, in which the main body 31 is a portable electronic device 6, or as illustrated in FIG. 6, the main body 31 is a USB adapter having at least one data transmission interface 4.

[0021] As illustrated in FIG. 4, the main body 31 includes a first pivotal portion 36 connecting on an end thereof. The first pivotal portion 36 has a first hollow spherical housing 361 and a first mating portion 362 formed on a free end of the first hollow spherical housing 361. The USB mating body 32 has a second pivotal portion 37 relative to the first pivotal portion 36, and a USB interface 321 disposed on an opposite end of the USB mating body 32. The USB interface 321 corresponds to and mates with the USB port 8 of the electrical product 7. The second pivotal portion 37 includes a second hollow spherical housing 371 and a second mating portion 372 formed on a free end of the second hollow spherical housing 371. The second hollow spherical housing 371 has an internal diameter longer than an external diameter of the first hollow spherical housing 361, and the second hollow spherical housing 371 is loosely matched with the first hollow spherical housing 361 for the first hollow spherical housing 361 partially and loosely wrapped in the second hollow spherical housing 371.

[0022] The second hollow spherical housing 371 has an aperture diameter adjacent to the second mating portion 372 and shorter than the external diameter of the first hollow spherical housing 361 to prevent the second hollow spherical housing 371 escaping out of the first hollow spherical housing 361. The second hollow spherical housing 371 has a retaining rim 374 sliding on and contacting the first hollow spherical housing 361 for adjusting a relative displacement therebetween; thus the second hollow spherical housing 371 can be manipulated with no angular limitations and rotated in multiple directions (see FIG. 5).

[0023] With respect to FIG. 5, the first hollow spherical housing 361 has a first cavity 363 formed therein communicating with a second cavity 373 formed in the second hollow spherical housing 371, so that a plurality of electrical cables (not identified) penetrate through the main body 31 and the USB mating body 32 and electrically connect the main body 32 and electrically connect the main body 31 and the USB interface 321.

[0024] Referring to FIG. 7, the present invention uses the internal diameter of the second hollow spherical housing 371 longer than the external diameter of the first hollow spherical housing 361, and the first hollow spherical housing 361 contacting and sliding on the second hollow spherical housing 371 to adjust a relative displacement therebetween for the second hollow spherical housing 371 rotating in multiple directions. The second hollow spherical housing 371 can be manipulated with no angular limitations, and the USB plug 3 can be orientated in a suitable attitude. Therefore, peripheral apparatuses having at least one USB interface, such as the cables 51, the portable electronic device 6, and the USB plug 3, can respectively mate with USB ports 8 of the electronic product 7 in a one-to-one manner, and be inserted and swapped at the same time.

[0025] It should be apparent to those skilled in the art that the above description is only illustrative of specific embodiments and examples of the invention. The invention should therefore cover various modifications and variations made to the herein-described structure and operations of the invention, provided they fall within the scope of the invention as defined in the following appended claims.