Sliding opening and closing device and a portable terminal having the same

A sliding opening and closing device, comprising:

• a main plate;
• a slide plate slidably coupled to the main plate;
• an elastic part supported by the main plate, the elastic part generating an elasticity power;
• a power transformation member for receiving the elasticity power of the elastic part, such that on a particular position in the moving path of the slide plate:
• the power transformation member applies the elasticity power to the slide plate in the direction to be closed when the slide plate is in the closing position, and
• the power transformation member applies the elasticity power to the slide plate in the direction to be opened when the slide plate is in the opening position;
• wherein said power transformation member comprises a first block defining a first pivot hole, which is connected to be rotated around a first rotation pivot projecting from said slide plate;
• At least one shaft part fixed to said first block;
• and
• A second block defining a penetrating hole in which the shaft part is slidably engaged, and a second pivot hole to which is rotatably coupled a boss formed on the main plate.

A sliding opening and closing device, comprising:

• a main plate;
• a slide plate slidably coupled to the main plate;
• an elastic part supported by the main plate, the elastic part generating an elasticity power;
• a power transformation member for receiving the elasticity power of the elastic part, such that on a particular position in the moving path of the slide plate:
• the power transformation member applies the elasticity power to the slide plate in the direction to be closed when the slide plate is in the closing position, and
• the power transformation member applies the elasticity power to the slide plate in the direction to be opened when the slide plate is in the opening position;
• wherein the power transformation member comprises a first block which is linked to be rotatable to a first spot of said main plate;
• a second block which is linked to be rotatable to a second spot of said slide plate which has a different moving path from said first spot;
• and a bar member which connects the first block with the second block, wherein said elastic part is coupled to said bar member and generates an elasticity power in a direction of extending said first block and said second block.

A portable terminal having a sliding opening and closing device, comprising:

• a main body defining a space;
• a sub body coupled to said main body such that the sub body is slidable relative to the main body between at least a first position in which the sub body is at least partially inserted into the space defined by the main body and a second position in which the sub body is at least partially protruding out from space defined by the main body;
• a stoppering part for fixing said sub body relative to the main body in at least one of the first and second positions;
• and
• an elastic part which supplies an elasticity power in a direction where said sub body is slidably inserted into or slidably removed from the space defined by the main body;
• wherein a keypad is placed on said main body, and a liquid crystal screen is placed on said sub body such that the liquid crystal screen is not exposed when the sub body is in the first position and such that the liquid crystal screen is exposed when the sub body is in the second position.

A portable terminal having a sliding opening and closing device, comprising:

• a main body defining a space;
• a sub body coupled to said main body such that the sub body is slidable relative to the main body between at least a first position in which the sub body is at least partially inserted into the space defined by the main body and a second position in which the sub body is at least partially protruding out from space defined by the main body;
• a stoppering part for fixing said sub body relative to the main body in at least one of the first and second positions;
• and
• an elastic part which supplies an elasticity power in a direction where said sub body is slidably inserted into or slidably removed from the space defined by the main body;
• wherein said stoppering part comprises a sliding bar having a hook hanging in a fitting boss of said sub body, the sliding bar also having a first elongated hole in a sliding direction, and wherein one end portion of the sliding bar comes in and out from the inside of said main body to the outside thereof;
• a first pin which is installed in said main body and coupled to said first elongated hole;
• and a compression spring flipping said sliding bar in a direction where said hook is hung in said fitting boss.

A portable terminal having a sliding opening and closing device, comprising:

• a main body defining a space;
• a sub body coupled to said main body such that the sub body is slidable relative to the main body between at least a first position in which the sub body is at least partially inserted into the space defined by the main body and a second position in which the sub body is at least partially protruding out from space defined by the main body;
• a stoppering part for fixing said sub body relative to the main body in at least one of the first and second positions;
• and
• an elastic part which supplies an elasticity power in a direction where said sub body is slidably inserted into or slidably removed from the space defined by the main body;
• wherein said elastic part comprises a first cross bar, one end of which is supported by said main body, and the other end of which is supported by said sub body;
• a second cross bar which is positioned to be crossed with said first cross bar, one end of which is supported by said main body, and the other end of which is supported by said sub body;
• a second pin which is coupled to the centers of said first and said second cross bars, and which makes said first and said second cross bars to be rotated relatively;
• and a torsion spring which is coupled to said second pin, and which supplies an elasticity power in a direction where said first and said second cross bars push said sub body.