Patent Application
20060226223
1) Field of the Invention
The present invention is a socket of card reader (ii) for memory card with connecting terminals following specification of USB containing card-unloading structure, which is a socket of card reader for accepting insertion of memory card with USB 4 pins specification through USB circuit architecture. It is a socket of card reader that applies the existing circuit specification to achieve the connection to a memory card and contains a card-unloading structure.
2) Description of the Prior Art
It is an indisputable fact that flash memory cards have won the favor of electronics market and have been implanted into many related digital products. However, the digital appliances currently produced by different manufacturers had adopted diverse types of memory card. To differentiate from memory cards with distinct specifications, a memory card is typically distinguished through its shape or connecting terminals. Although different memory cards are distinguished by way of different conditions, to keep a design light-weighted, slim, short, and small is always a common target of the designer, that explains the reason why the size of memory card has been reduced to a stamp size. Therefore, “how to make sure that a memory card is reliably inserted into a socket of card reader” has become an important issue.
Accordingly, the present inventor focused on the memory card that following USB 4 pin specification and developed a socket of card reader that contains a card-unloading structure. Although connecting and reading a memory card through USB is not a new technology, as disclosed in the U.S. Pat. No. 6,148,354, “Architecture for a universal serial bus-based PC flash disk”, the present invention features utilizing the existing USB circuit architecture to achieve the connection when a memory card is inserted into a socket of card reader. The said socket of card reader not only additionally provides a push-push mechanism that allows the function of pushing to unload card but as well includes a locking mechanism to prevent unexpected popping and dropping of the memory card.
For the socket of card reader (ii) for memory card with connecting terminals following specification of USB containing card-unloading structure according to the present invention, the main purpose is to provide a card-unloading structure in the socket of card reader for memory card with connecting terminals of USB specification, such that the connection and release of memory card can be controlled through pushing and thus ensures the locking or release of memory card.
Lately, many memory cards took bus architecture as connection interface, the present invention not only applied and ameliorated the existing technical resources, but also assured the locking of inserted memory card and thus prevented the memory card from unexpected looseness or getting lost. The key points described above have completely corresponded to the necessary conditions of patent pending. The detailed descriptions as well as the technical contents of the invention shall be given with the accompanying drawings hereunder.
Referring to
The base 12 mainly is used for embedding connecting terminals 13 and thus accepting the insertion of memory card, where two correspondent convex parts 123, 123′ are provided as a track for guiding the insertion of memory card, in which four ways of embedding holes 120 are provided for embedding connecting terminals 13 to achieve the connection when contact to the memory card; further, a slide slot 126 is provided at the convex part 123 such that the slide block 142 of the card-unloading structure 14 can be embedded, and an U-type slot 122 is provided at the front end of slide slot 126 for allocating one end of twin-bend rod 143, while a locating latch 125 is installed at the other end of slide slot 126, the said locating latch 125 is provided for installing spring 141 of card-unloading structure 14.
The said card-unloading structure 14 includes a slide block 142, a twin-bend rod 143, and a spring 141, where the slide block 142 is L-type with one end installed a locking tenon 1421 and another end installed a resist part 1424. The twin-bend rod 143 is installed across the concave part 1426 of slide block 142. The arc part 1425 at end part of slide block 142 is used to control the slide block 142 such that it can be pushed forward to a specified position or retreated. Further, a positioning latch 1422 is installed in front of the concave part 1426 to support the installation of spring 141, where the spring 141 provides a react force to recover the displacement.
Moreover, a bended contact part 131 is bulged on the end part of the said connecting terminals 13. As the connecting terminals 13 are elastically forced to raise, when memory card 2 is inserted, the connecting terminals 13 react to the suppression and contact to the connector of memory card 2, thus complete the connection for reading. Even so, the whole socket of card reader 1 is fixed by welding the weld part 132 (which is located at the connecting terminals 13) to the implanted circuit board.
Further, referring to
