92results about "Magazine/cassette manufacturing apparatus" patented technology

A recording tape cartridge which can be loaded into a drive device having a reel on which a recording tape is wound and which is rotatably accommodated in a case, the reel including: a resin-formed main portion which includes a reel hub formed in a tubular shape having a floor, the recording tape being wound around an outer peripheral surface of the reel hub; and a substantially disc-shaped metal plate attached firmly to an outer surface of a floor portion of the reel hub, wherein a gate portion, through which a resin material is introduced at the time of molding the main portion, is provided at a radial direction outer side of the metal plate.

A tape reel on which a tape strip is wound comprises a cylindrical reel hub having pores distributed allover a hub wall and a center bore formed axially therein and flanges connected opposite ends of the reel hub. The interior of the center bore of the reel hub is depressurized so as thereby to attach an end portion of a tape strip to the reel hub with air sucked in through the pores.

This invention provides a plastic component of which the lower half (102) and upper half (103) are thermoplastic. A welding head (1), which is longitudinally extended by a predetermined length range and is provided with a plurality of convexes in the circumferential direction, is inserted so as to lie astride a lower boss (107) and an upper boss (110) in a joint (105). The plastic in the joint (105) is melted by the welding head (1). The melted plastic is solidified to weld and integrate the lower half (102) and the upper half (103) to each other.

A molding mold and a molding method are disclosed, for molding a flange configuration in which a flange of a reel hub portion can be maintained in a predetermined configuration. Also a tape cartridge is disclosed, which can securely prevent a tape-shaped recording medium from touching at the flange while the tape cartridge is being used. In the molding mold for molding, a flange configuration is produced, which is provided with a reel hub portion having a flange and a hub arranged at a substantially center of the flange and an insert portion disposed at a substantially center of the reel hub portion at an opposite side of the hub, and which includes: an insert attaching portion; a flange forming portion for forming the flange; and a hub forming portion for forming the hub; wherein in a forming surface of at a side of the hub forming portion of the flange forming portion, a dimension of a circular area over from a root end of the hub forming portion to a substantially intermediate portion between the root end and a circumferential end of the flange forming portion, is corrected in view of deformation upon molding.

A tape winding method of the present invention comprises a winding process for winding tape on a periphery of a hub by rotating the hub so that one end surface of a wound roll, which consists of the tape having a base film and being wound, becomes concave; and a heating treatment process for performing a heating treatment for the wound roll within a predetermined temperature range just under a glass transition temperature of the base film.

A magnetic tape cartridge, which can be assembled using an automated products line by enabling the assembling operation of a spring member and a slide door with ease. For attaining these problems, there is provided a magnetic tape cartridge comprising a magnetic tape cartridge comprising; an opening provided on one side wall of a cartridge case, and is used for tape drawing; a slide door slidably supported by a guide part disposed along said one side wall, and said slide door is used achieving the shutting-and-opening operation of said opening; spring member for impelling said slide door to the shutting direction side, and tape drawing; placed on said guide part; and a leading part for leading one end part of said spring member to a spring engaging part provided on said slide door, and is provided at one end part of said spring member.

A cartridge case 1 for a magnetic tape cartridge comprises a cartridge case 1 consisting of a lower half 2 and an upper half 3. The lower half 2 is provided with retaining ribs 71 each having a retaining slanted surface 71a such that a plate-like cartridge memory 7 is positioned on the retaining slanted surfaces 71a with its one side 7d lowered and is obliquely supported with respect to a bottom plate 28 of the lower half 2. The upper half 3 is provided with supporting members for supporting various non-resilient constituent parts positioned on the lower half 2 and including the cartridge memory 7. The upper half 2 is provided with a stopper rod 77 such that when the upper half 3 is assembled with the lower half 2, the stopper rod 77 reaches a cartridge memory-rising region before the supporting members contact with the non-resilient constituent parts on the lower half 2.

A reel includes: a hub in which plural through holes are formed at a connecting portion that interconnects a cylinder portion and an axial center portion; a first flange that is disposed on one end portion of the hub and equipped with a first inner peripheral portion, which contacts a first reference surface formed on the connecting portion and ensures that a first flange surface does not touch the cylinder portion, and first insertion portions, which are inserted into the through holes; and a second flange that is disposed on the other end portion of the hub and equipped with a second inner peripheral portion, which contacts a second reference surface formed on the connecting portion and ensures that a second flange surface does not touch the cylinder portion, and second insertion portions, which are inserted into the through holes and are joined together with the first insertion portions.