摘要:
A recording tape cartridge that can secure the attached region of an RFID in a case is provided including: a case that has an upper case and a lower case and houses a reel around which a recording tape is wound; a restricting wall that is formed at least in the lower case and defines an area in which the reel is housed; a housing portion that is formed between the restricting wall and the corner of the case; and a planar RFID that is provided in the housing portion such that the rotational axis direction of the reel is a normal line direction.
摘要:
A leader tape that is joined at an end portion of a recording tape wound on a reel and that, when pulling out the recording tape, is pulled out by a pullout member of a drive device and conveyed on a predetermined path by guide members of the drive device, wherein recessed portions are formed in a surface of the leader tape that abuts with the guide members, is provided.
摘要:
The present invention provides a leader tape, method for manufacturing the same, and a magnetic tape cartridge with a leader tape having surface properties and conductive properties for securing slide durability suitable for a magnetic tape drive using a magnetic tape cartridge of one reel cartridge. A leader tape joined to a starting end of a magnetic tape wound around a magnetic tape reel of a one reel cartridge, comprising: a base material; and a conductive slide layer formed on at least one surface of the base material, the surface of the conductive slide layer having a surface electrical resistance value of 102 Ω/square to 1010 Ω/square and a surface roughness Ra of 0.5 μm to 1.5 μm.
摘要:
A reel around which recording tape is wound includes: a bottomed, circular cylinder-shaped hub; a reel plate that is disposed on a bottom surface of the hub; and plural gates that are disposed at equidistant intervals along the circumferential direction of the reel plate outside the reel plate and which serve as injection openings for a resin material during molding. An outer peripheral surface of the hub is formed along a circumference whose center coincides with an axial center portion of the hub, and with respect to the thickness of the hub, portions P positioned on straight lines connecting the axial center portion of the hub and the gates are the thinnest, and portions R positioned on straight extension lines that extend in the radial direction from the axial center portion of the hub and run orthogonal to straight lines connecting adjacent gates are the thickest.
摘要:
In the magnetic tape cassette storage case, on the neighboring portions of the connecting portions between the bottom plate (21) and inner walls (22) of a storage part (20), there are disposed ribs (24) in such a manner that they extend into the bottom plate (21) and inner walls (22) and project inwardly of the storage part (20). Due to this structure, between the back surface (11b) of a magnetic tape cassette (11) and the bottom plate (21) of the storage part (20), there can be defined a required clearance (S) capable of storing an information sheet (13) therein. Therefore, the present magnetic tape cassette storage case is capable of storing, together with the magnetic tape cassette, a large quantity of information sheets at a given position and in a given posture as well as with a good operation efficiency.
摘要:
In a magnetic tape cassette, a top end portion of a reel urging plate spring for urging a tape reel is subjected to a surface treatment to prevent from a friction. A distance between a couple of flanges of the tape reel is selected to keep a form of the wound magnetic tape, and to prevent the tape running from being disturbed by the increases of a contract resistance of the tape edges to the flanges. Additionally, positioning portions for positioning the magnetic tape cassette relative to a magnetic tape drive device are formed of a differential resin from the resin of the remaining part of the cassette case. Additionally, at least one of both end faces of each guide roller is surface treated so that the end face is not worn through its contact with the cassette half. Further, an information presenting section for displaying variable information is provided at a location other than label areas of the tape cassette.
摘要:
A magnetic tape cassette includes an ID board for enabling a hardware to identify the magnetic tape by bringing contacts on a circuit board of the ID board which are exposed through an opening formed in a lower cassette half into contact with corresponding contacts in the hardware. Additionally, a plating treatment is provided on the contacts on the ID board. Further, a determined distance is secured between all end portions of the parts of the circuit board. Which are provided with the plating treatment, and the end faces of the circuit board. In an illustrative, non-limiting embodiment, the determined distance of the ID boards at a forward position in a moving direction of the magnetic tape cassette at which the contacts on the ID board are adapted to slidably contact with the contacts in the hardware is set to be 0.05-0.25 mm.
摘要:
A storage case for a magnetic tape cassette comprises a storing portion 12 for storing the magnetic tape cassette, a lid portion 16 having an outer wall 28 surrounding the storing portion, and a hinge portion 14 for connecting the storing portion and the lid portion to be opened and closed, all of which are formed of synthetic resin. At least a pair of pressing ribs 32 are provided inside an outer wall 28 of the lid portion 16 to contact a peripheral edge of a surface of the magnetic tape cassette 10 when the magnetic tape cassette is stored, thereby holding the magnetic tape cassette between the pressing ribs 32 and the storing portion 12. By means of the pressing ribs 32, a gap D for containing the information sheets is defined between the lid portion 16 and the magnetic tape cassette 10. The pressing ribs 32 further include respective holding ribs 34 projectingly formed in a direction of the cassette face for holding paper ends of the information sheets, to thereby contain and hold a large amount of information sheet.
摘要:
The cassette half molding method molds one of upper and lower halves of the magnetic tape cassette by injection molding with an injection mold in which a gas vent pin for smoothing a flow of molten resin to be introduced in the cavity for molding a transparent or semitransparent window portion provided in the upper half. The cassette half is molded by this molding method. The magnetic tape cassette has a friction sheet interposed either between a pair of take-up hubs and the upper half, or between the pair of take-up hubs and the lower half, or both, and the friction sheet is made of polyethylene-based resin and has a surface electric resistance value in the range of 1×107&OHgr; to 1×1010&OHgr;. The magnetic tape cassette has a rib for reducing a resistance when the roller of the detecting member passes through which is provided at a position corresponding to a recess and on a side of the front lid in the top surface of the body case.
摘要:
A magnetic tape cassette, such as a high performance video cassette, having a greatly improved dust-proofing function. In a first embodiment, operating portions of brake members which engage a brake release lever which is inserted into the cassette at the time of recording or reproduction to release the braking system of the cassette are formed in an inverted cup shape so as to close the hole through which the brake release lever is inserted and to contain the end of the brake release lever when inserted into the hole. In a second embodiment, separate engagement and abutment portions are provided for each brake portion so as to prevent inadvertent opening of the hole if the tape reels are moved during storage. In a third embodiment, the dust-blocking member takes the form of a slitted flexible sheet member covering the hole when the cassette is not in use.