Abstract: An electrical connector (4) includes an insulative housing (40), a number of leads (5) and a number of solders (7) attached to the leads. The insulative housing has a mating face (41), a mounting face (42) and a number of passageways (43) extending through the mating face and the mounting face. The leads are received in the passageways and each includes a contacting portion (50) exposed to the mating face and a solder portion (52) connected to the contacting portion and exposed to the mounting face. The solder portion defines a hole (54) extending therethrough and the solder extends through the hole and is revited to the solder portion.

Abstract: A socket connector includes a housing positioned on a circuit board and movably supporting a cover. Cells are defined in the housing for retaining dual-beam terminals. The cover carries a central processing unit module having pin legs extending through holes defined in the cover and projecting into the cells of the housing. The cover is movable in a moving direction to bring the pin legs into engagement with the terminals. Each terminal includes a base section retained in each cell and a tail extending and beyond the housing for being soldered to the circuit board. Two beams extend from the base section, substantially opposite to the tail. Each beam forms a spring arm. The spring arms are opposite to and spaced from each other for engaging the corresponding pin leg therebetween. The beams are symmetric with respect to an imaginary plane that is normal to the base section and coincident with the moving direction.

Abstract: A contact comprises a base (20) and a pair of arm sections (30). The base has a body section (21) adapted for being secured in a socket connector housing. The body section comprises a linking section (22) downwardly extending from a bottom edge. A soldering section (23) extends perpendicularly from a bottom edge of the linking section. The body section of the base defines a rectangular window (211) dividing the body section into an upper section (212) and a lower portion (213). An engaging portion (214) extends from a lower edge of the upper portion of the body section to the window and opposite to the arm sections. The pair of arm sections extends from opposite lateral sides of the base and each comprises a planar clamp (31) at an upper end thereof. A palm (32) extends outwardly from a front end of the clamp toward the engaging portion.

Abstract: A socket connector includes a housing positioned on a circuit board and movably supporting a cover. Cells are defined in the housing for retaining dual-beam terminals. The cover carries a central processing unit module having pin legs extending through holes defined in the cover and projecting into the cells of the housing. The cover is movable in a moving direction to bring the pin legs into engagement with the terminals. Each terminal includes a base section retained in each cell and a tail extending and beyond the housing for being soldered to the circuit board. Two beams extend from the base section, substantially opposite to the tail. Each beam forms a spring arm. The spring arms are opposite to and spaced from each other for engaging the corresponding pin leg therebetween. The beams are symmetric with respect to an imaginary plane that is normal to the base section and coincident with the moving direction.

Abstract: A brighter and whiter reflector provides high reflection efficiency over a wide range of angles. An indenting tool is pressed against the surface of a matrix base material; the pressing operation is repeated while changing the position of the indenting tool on the surface of the base material for the matrix to successively form many pits, the inner surfaces of which are shaped like partial spheres, on the mold surface of the matrix base material so as to provide it as the matrix for forming the reflector. Then, a transfer mold having a mold surface which has a reversed pattern of the pits and projections of the mold surface of the matrix is made, and the mold surface of the transfer mold is transferred to the surface of the base material for the reflector to provide a reflector (1). Pits (4) of the reflector (1) are formed so that the depths the pits (4) range from 0.

Abstract: A brighter and whiter reflector provides high reflection efficiency over a wide range of angles. An indenting tool is pressed against the surface of a matrix base material; the pressing operation is repeated while changing the position of the indenting tool on the surface of the base material for the matrix to successively form many pits, the inner surfaces of which are shaped like partial spheres, on the mold surface of the matrix base material so as to provide it as the matrix for forming the reflector. Then, a transfer mold having a mold surface which has a reversed pattern of the pits and projections of the mold surface of the matrix is made, and the mold surface of the transfer mold is transferred to the surface of the base material for the reflector to provide a reflector (1). Pits (4) of the reflector (1) are formed so that the depths the pits (4) range from 0.

Abstract: A CPU socket (1) includes a non-conductive base (10) defining an array of through holes (103), a plurality of conductive contacts (11) retained in corresponding through holes, a movable cover (12) covering the base and an actuator member (13) for moving the cover with respect to the base. The base forms a pair of latching members (140) and each latching member has a body portion (141) and a horn portion (142) which define a first acute angle between. The cover forms a pair of hook members (124) for engaging with the latching members of the base and each hook member has an elongate body (125) and a hook portion (126) which define a second acute angle equal to the first acute angel for fittingly latching the latching member of the base.

Abstract: A disc ejection device is provided separate from a disk loading device in a disc device for disc playback or recording. When a disc loaded on a turntable in a disc driving section is ejected, it is lifted up by a moving table, is fed out by a first ejection member, and is then ejected from an ejection slot by a second ejection member disposed near the ejection slot. Immediately after the first ejection member feeds out the disc, it returns to an initial retracted state so as to allow a new disc to be loaded into the disc driving section. Accordingly, the loaded disc and a new disc can be switched inside the disc device.

Abstract: In the magnetic recording/regenerating apparatus of the present invention, the linking member R expands, contracts and rotates under the effect of the elastic member 9d by causing sliding with a slight force by pressing the pressing section of the first member of the second sliding member S. The rotation permits discharge of the loaded cartridge and easy ejection of the cartridge with a slight force.

Abstract: In the conventionl magnetic recording/regenerating apparatus,loading/unloading of a cartridge has been manually carried out, thus requiring a large force (about 1.5 to 3 kgf) for these operations by a spring force of a leaf spring, and making it difficult to ensure loading of the cartridge in the magnetic recording/regenerating apparatus. In the magnetic recording/regenerating apparatus of the invention, the portion between one end side and the other side of the linking member is rotatably supported on the bottom plate of the enclosure, and the supporting point as a fulcrum, the distance between the fulcrum and an end connecting the second sliding member is made smaller than the distance between the fulcrum and the other end connecting the first sliding member.

Abstract: Disclosed is a magnetic recording-reproducing device in which an engagement portion of a cartridge is locked by a locking portion of a first slide member; therefore as first and second slide members and slide, the cartridge also slides to be loaded and unloaded. The loading and unloading of the cartridge, therefore, can easily be accomplished with extremely little force.

Abstract: A first and second rotary members are supported on a holder 3 secured to a main chassis of disk drive apparatus. The first rotary member includes a detecting portion. The second rotary member includes a contact portion that moves in and out of the insertion path of a disk cartridge to be inserted into the holder. When the disk cartridge is being inserted, an opening-and-closing pin opens the shutter of the disk. Through the detecting portion, the opening shutter rotates the first rotary member, which then rotates the second rotary member to thereby move the contact portion of the second rotary member out of the insertion path of the disk cartridge, allowing the disk cartridge to be inserted. If the shutter fails to open when the disk cartridge is being inserted, the contact portion of the second rotary member will remain in the insertion path and block the insertion of the disk cartridge.

Abstract: A motor and a recording and/or reproducing apparatus using the motor. The motor includes a rotational member, a fixed member, a stopper member and a set of balls. The rotational member is formed by bending a first plate, and includes a first V-shaped bearing guide groove and central rotational shaft having a hole formed therein. The fixed member is formed with a second V-shaped bearing guide groove and bent portions which are used to attach the fixed member to a chassis. The balls are mounted in the first and second V-shaped bearing guide grooves and allow the rotational member to rotate relative to the fixed member. The stopper member is inserted through a central opening in the fixed member and is received in the hole formed in the rotational shaft, thereby connecting the rotational member to the fixed member so that the motor can be transported as a unit without separating.

Abstract: A bearing structure for a stepping motor including a stepping motor, a screw shaft integrated with the stepping motor, and a bearing member formed of a molding resin material for supporting a distal end of the screw shaft, wherein a cone-shaped recess is formed in the distal end of the screw shaft, and a dome-shaped projection to be in abutment with the recess is formed on the bearing member.

Abstract: A disk cartridge and a disk cartridge drive mechanism are disclosed. The disk cartridge includes a flexible recording disk with a hub at the central portion thereof, and a cartridge case containing the recording disk, with the hub having formed therein a chucking hole and a positioning hole. In order to rotate the recording disk by loading it into the disk cartridge drive mechanism, the chucking hole is defined by two straight-line portions that intersect to form a corner against which a spindle shaft of the disk cartridge mechanism is capable of being pushed, and the positioning hole is defined by a contact portion with which a drive pin of the disk cartridge drive mechanism is capable of coming into contact only in the direction of rotation of the recording disk.

Abstract: A push-lock device has a damper mechanism 9 which includes a strip body 17; protruding portions 14, 16; a protruding portion 26; and a rubber ring 23. The strip body 17 is arranged in the moving direction of the sliding body 4 housed in the case 2 and has a meandering groove 22 formed therein. The protruding portions 14, 16 support rotatably the ends of the strip body 17. The protruding portion 26 is arranged to the sliding body 4 and engages to the meandering groove 22. The rubber ring 23 is arranged between the base 2b of the case 2 and one end of the strip body 17. The damper mechanism 9 can brake the movement of the sliding body 4 to prevent the sliding body from returning quickly from the locking position. The shock noise of the sliding body is reduced and the knob can be prevented from slipping out from the operating shaft.

Abstract: A magnetic disk drive device for reading-out/writing-in information on/from a disk which comprises a yoke plate for rotatably supporting an actuator by a pair of bearings; a stopper for restricting the rotation range of said actuator; a solenoid bracket integrated in the yoke plate; a lock mechanism for locking said actuator at the innermost peripheral of the disk; a base plate having a recess for securing the yoke plate; an air filter formed in V-shape to purify air in said case; and a back-tension regulating piece in contact with a flexible print board.

Abstract: A magnetic disk drive device for reading-out/writing-in information on/from a disk which comprises a yoke plate for rotatably supporting an actuator by a pair of bearings; a stopper for restricting the rotation range of said actuator; a solenoid bracket integrated in the yoke plate; a lock mechanism for locking said actuator at the innermost peripheral of the disk; a base plate having a recess for securing the yoke plate; an air filter formed in V-shape to purify air in said case; and a back-tension regulating piece in contact with a flexible print board.

Abstract: A magnetic disk drive device for reading-out/writing-in information on/from a disk which comprises a yoke plate for rotatably supporting an actuator by a pair of bearings; a stopper for restricting the rotation range of said actuator; a solenoid bracket integrated in the yoke plate; a lock mechanism for locking said actuator at the innermost peripheral of the disk; a base plate in which a recess for securing the yoke plate; an air filter formed in V-shape to purifying air in said case; and a back-tension regulating piece in contact with a flexible print board.

Abstract: A magnetic head supporting device for supporting a magnetic head for writing information in and/or reproducing recorded information from a flexible magnetic disk. The magnetic head supporting device comprises a holding plate for holding the magnetic head, and a base plate attached to the holding plate and fastened to the carriage of a magnetic disk driving apparatus so that the magnetic head is supported opposite to the magnetic disk loaded on the turn table of the magnetic disk driving apparatus. The holding plate is provided in its upper surface with a positive pressure creating section in its front end to create a positive pressure for floating the magnetic disk, a floating section in its radially opposite sides to float the magnetic disk stably, and a negative pressure creating section in its central area to create a negative pressure for attracting the magnetic disk.