Abstract: A button structure for a portable electronic device includes a housing defining a button hole, a button received in the button hole, and a seal member of elastic material. The seal member is fixed on the housing and seals the button hole.

Abstract: A sliding mechanism includes a main board, a sliding board, two racks, a gear, a connecting member and a winding coil. The main board defines a guiding slot. The two racks are positioned at two opposite sides of the main board. The gear matches each of the first and second racks. The sliding board is slidable along the guiding slot by the connecting member. The winding coil, the winding coil is tightened when the sliding board is pushed toward or away from the main board, and rebounds to its original shape to cause the sliding board to automatically further slide relative to the main board when the gear is detached from one rack and matches another rack.

Abstract: A housing assembly (100) for portable electronic device is provided. The housing assembly (100) comprised a main body (20), a cover (12), a connecting rod (142), a first elastic element (16), and a second elastic element (144). The main body (20) have a receiving groove (222) defined on a sidewall thereof. At least one interface (225) is mounted on the bottom surface of the receiving groove (222). A aperture (226) is defined in the bottom surface of the receiving groove (222), and the main body (20) have a button slot (242) defined therein. The cover (12) has a guiding pole (124) protruding therefrom, the guiding pole (124) have a securing portion (126) formed thereon, and the guiding pole (124) inserts into the main body (20) from the aperture (226). The connecting rod (142) has a stopping portion (1426) protruding from one end thereof, and the other end thereof extending from the button slot (242).

Abstract: A chuck is provided with a body, a plurality of jaws and an adjustment ring. The adjustment ring is threadably engaged with the jaws. When the adjustment ring is rotated in one direction, the jaws tighten by moving closer to each other. When the adjustment ring is rotated in the opposite direction, the jaws loosen by moving away from each other. An impact member is also provided for engagement with the adjustment ring. When the drive shaft of the power tool is rotated, the adjustment ring impacts against the impact member. As a result, the adjustment ring and the body of the chuck rotate relative to each other causing the jaws of the chuck to loosen or tighten depending on the direction the drive shaft is rotating.

Abstract: A chuck is provided with a body, a plurality of jaws and an adjustment ring. The adjustment ring is threadably engaged with the jaws. When the adjustment ring is rotated in one direction, the jaws tighten by moving closer to each other. When the adjustment ring is rotated in the opposite direction, the jaws loosen by moving away from each other. An impact member is also provided for engagement with the adjustment ring. When the drive shaft of the power tool is rotated, the adjustment ring impacts against the impact member. As a result, the adjustment ring and the body of the chuck rotate relative to each other causing the jaws of the chuck to loosen or tighten depending on the direction the drive shaft is rotating.

Abstract: A lead frame for a semiconductor device includes at least one row of contact terminals and a die pad for receiving an integrated circuit die. An isolation material is located between the contact terminals and the die pad. The isolation material electrically isolates adjacent lead fingers from each other and from the die pad. The isolation material also holds the lead fingers in place during a wire bonding operation and thus the bottom of the lead frame does not have to be taped during the assembly process, which saves taping and detaping steps from being performed. The isolation material also prevents resin bleed problems that sometimes occur when using tape. If a sawing step is performed, the saw need only cut through the isolation material instead of a metal, and thus saw blade life is improved.

Abstract: A pivot switch mechanism (200) mounted on a shell (20) of an electronic device (300) includes a fixing portion (30) and an operating portion (40). The fixing portion (30) is mounted on the shell (20) and is connected with the operating portion (40) in a spring-biased manner. The fixing portion (30) defines a receiving hole (32) and two receiving grooves (28). The operating portion (40) includes two resisting columns (48) and at least one pivotal shaft (424). The operating portion (40) is located in the receiving hole (32). The at least one pivotal shaft (424) is received in the receiving grooves (28). When the operating portion (40) is pressed, the operating portion (40) rotates/pivots relative to the receiving grooves (28) via the at least one pivotal shaft (424). When the pressure on the operating portion (40) is released, the operating portion (40) returns to its original position.