Abstract: A hinge mechanism includes a base gudgeon and a pivot pintle. The base gudgeon has a main body and first and second tubular portions formed on the main body and respectively having coaxial first and second pivot holes. The second tubular portion has a first torque regulating formation formed on an inner surrounding wall thereof. The pivot pintle has a first pintle section rotatably inserted into and pressed-fit to the first pivot hole to produce primary frictional torque during pivoting of the pivot pintle, a second pintle section rotatably inserted into and pressed-fit to the second pivot hole to produce secondary frictional torque, and a second torque regulating formation configured to be matingly engaged with the first torque regulating formation in a part of angular positions of the pivot pintle so as to reduce the secondary frictional torque.

Abstract: An elastic device structure includes two identical connection seats and multiple elastic members. Each connection seat is defined with a central line and has a protruding connection section and a connected section. The connection section and connected section are symmetrically disposed on two sides of the central line. A laterally protruding lateral hook is disposed on the connection section. The connected section is formed with a receiving channel for receiving the connection section of the other connection seat. A stop raised block is disposed in the receiving channel and positioned at a dead end of slide paths of the lateral hook. Multiple receiving sockets are disposed beside the connection section and connected section. Two end sections of the elastic members respectively extend into the receiving sockets, whereby the two connection seats are elastically slidable relative to each other.

Abstract: A rotary shaft location structure is utilized to improve conditions of complicated, inconvenient, time-consuming and troublesome installation of conventional locating components, based. on a compact request. The rotary shaft includes a combination of a shaft body and a cylinder body, in which the cylinder body includes a rigid wall and a chamber defined by the rigid wall and utilized to receive the shaft body. The shaft body includes at least one arc region and a plane region, at least one elastic device is installed inside the chamber of the cylinder body to form a contact or interference condition with the shaft body, and the elastic device and the shaft body generate a frictional resistance in response to a movement of the shaft body, thereby improving conditions such as easy-to-produce deformation and abrasion in conventional locating components.

Abstract: An elastic device structure includes two identical connection seats and multiple elastic members. Each connection seat is defined with a central line and has a protruding connection section and a connected section. The connection section and connected section are symmetrically disposed on two sides of the central line. A laterally protruding lateral hook is disposed on the connection section. The connected section is formed with a receiving channel for receiving the connection section of the other connection seat. A stop raised block is disposed in the receiving channel and positioned at a dead end of slide paths of the lateral hook. Multiple receiving sockets are disposed beside the connection section and connected section. Two end sections of the elastic members respectively extend into the receiving sockets, whereby the two connection seats are elastically slidable relative to each other.

Abstract: A synchronous pull device for slide cover mechanism includes two guide members, two slide seats and two pull assemblies. Slide guide sections are disposed on each guide member, whereby the slide seats can slide along the slide guide sections. First connection ends and second connection ends are respectively disposed on opposite sides of the slide seats. Each pull assembly includes at least two idlers, a middle idler and a pull cord. The two idlers are positioned beside two different ends of two different slide guide sections on opposite sides of the two guide members. The middle idlers are disposed between the two guide members near two ends of the slide guide sections. Each pull cord sequentially goes from the first connection end of one of the slide seats through one idler, the middle idler and the other idler to connect with the second connection end of the other slide seat.

Abstract: A synchronous drive device for slide cover mechanism includes two guide members, two slide seats and two drive assemblies. Slide guide sections are disposed on each guide member, whereby the slide seats can slide along the slide guide sections. Two rollers are respectively disposed on opposite sides of the slide seats. Each drive assembly includes at least one drive cord. Two ends of the drive cord are respectively diagonally fixed beside two ends of the two guide members on different sides. A middle section of the drive cord passes through the rollers on the slide seats, whereby the two drive cords transversely turn between the slide seats to intersect each other. By means of the driving of the drive cords, the slide seats can synchronously slide along the slide guide sections of the guide member.

Abstract: A synchronous pull device for slide cover mechanism includes two guide members, two slide seats and two pull assemblies. Slide guide sections are disposed on each guide member, whereby the slide seats can slide along the slide guide sections. First connection ends and second connection ends are respectively disposed on opposite sides of the slide seats. Each pull assembly includes at least two idlers, a middle idler and a pull cord. The two idlers are positioned beside two different ends of two different slide guide sections on opposite sides of the two guide members. The middle idlers are disposed between the two guide members near two ends of the slide guide sections. Each pull cord sequentially goes from the first connection end of one of the slide seats through one idler, the middle idler and the other idler to connect with the second connection end of the other slide seat.

Abstract: A radio frequency identification tag is provided. The radio frequency identification tag includes a body and a cutting indication formed on the body. The body includes a substrate, an antenna disposed on the substrate and an integrated circuit disposed on the substrate and electrically connected to the antenna for performing a radio frequency communication. An extension of the cutting indication intersects with the antenna to separate the body into two parts after breaking.

Abstract: A radio frequency identification tag is provided. The radio frequency identification tag includes a body and a cutting indication formed on the body. The body includes a substrate, an antenna disposed on the substrate and an integrated circuit disposed on the substrate and electrically connected to the antenna for performing a radio frequency communication. An extension of the cutting indication intersects with the antenna to separate the body into two parts after breaking.

Abstract: A method for packaging a smart card is provided. The method includes steps of providing a first thermoforming plastic piece; providing a first piece on the first thermoforming plastic piece and having an aperture; disposing an electrical element on the first thermoforming plastic piece and in the aperture; providing a second thermoforming plastic piece covering the first piece and the electrical element; and heating the first and the second thermoforming plastic pieces.