摘要:
A tape cassette having a synthetic resin casing accommodating a tape-like medium composed of an upper half casing, a lower half casing and a front lid, the upper and lower half casings being integrated by a plurality of fixing portions. A plurality of fixing portions are disposed at first positions which are outside of a second position of the front lid. Slackening of screw fixation of the upper and lower half casings is preventing and incapacitance in rotating the front lid due to melt-bonding of the front lid and the upper half casing is avoided.
摘要:
A tape cassette capable of permitting a reel spring to be readily and accurately positioned on a casing for its mounting to highly improve workability and productivity in manufacturing of the tape cassette. The tape cassette includes a reel spring which is abutted against tape reels for elastically holding them. The reel spring comprises a spring body formed at an intermediate portion thereof in a longitudinal direction thereof with a plurality of mounting holes through which the reel spring is mounted on an inner surface of an upper casing member. The spring body is provided on each of both sides thereof in the longitudinal direction with one or two positioning recesses, each of which is positioned adjacent to each of the mounting holes.
摘要:
A tape take-up hub which comprises a circular ring having an outer wall surface on which a length of magnetic tape is taken up and an inner wall surface defining an opening with which the ring can fit onto a driving shaft and formed with three key ways adapted to mesh with keys formed on the driving shaft, said ring having a thickness substantially equal to the width of the magnetic tape, the improvement which further includes, as additionally formed on either side of the circular ring, three protrusions of the same height and three recesses of a depth greater than the height of the protrusions and adapted to receive the corresponding protrusions of an adjacent hub of an identical structure. The protrusions and recesses are equally spaced apart along one and the same circle and are aligned in position to those formed on the reverse side of the same circular ring.
摘要:
A magnetic tape cassette comprises a cassette casing, a pair of reels, on which a magnetic tape is wound, which are received in the cassette casing in a rotatable manner, and an interlocking plate for stopping the feeding of the magnetic tape, mounted on either one of said pair of reels, which is provided with an adjusting button and a control pin, wherein the interlocking plate and the adjusting button are formed integrally of a flexible material.
摘要:
A tape cassette housing capable of ensuring safety of a tape cassette in non-use of the tape cassette or during storage and transportation of the tape cassette. The tape cassette housing includes a housing body, a cover, a hinge for relatively openably connecting the housing body and cover to each other, and one or two pairs of projections provided on an inner surface of one of the housing body or cover. The projections are arranged in a manner to positionally correspond to pressing members of a tape cassette for holding reels of the tape cassette through the pressing members when the tape cassette housing is closed while receiving the tape cassette therein, to securely hold the pressing members, resulting in rendering the reels immovable in the tape cassette without any clattering. The housing may be provided with a locking mechanism for locking the housing body and cover together when the tape cassette housing is closed, to thereby further enhance safety of the tape cassette.
摘要:
A hub to be attached to the central portion of a recording medium comprises a flat plate-like body made of a metallic material, and an annular resinous body firmly attached to the flat plate-like body by insert-molding, wherein at least one bent portion with an opening for connecting the annular resinous body to the flat-plate-like body is formed in the flat plate-like body so that the opening is in parallel to the upper or lower surface of the flat plate-like body.
摘要:
A magnetic tape cassette capable of highly improving workability and productivity in its manufacturing while ensuring its satisfactory function. The cassette includes a spring for constantly urging each of hub braking levers in a direction of engaging the lever with a reel hub to selectively lock the reel hub. The spring is formed so as to have a substantially straightly extending or flat shape when it is unloaded or in a free state and arranged in a casing in a manner to be constantly kept deflected by cooperation of an urging element and a support element each provided on the hub braking lever and a holding element provided on the casing and constantly abuttedly held at one end thereof on a contact element provided on the hub braking lever.
摘要:
A tape cassette has a case containing a pair of reels for winding magnetic tape. An outer lid is pivotally mounted on the case to open and close the outside of the passage through which the magnetic tape is stretched along the front of the case. An inner lid is pivotally mounted on the inside of the outer lid to open and close the inside of the passage through which the magnetic tape is stretched. A slide member is formed on the inner lid. A guide groove is formed in the case to guide the slide member. The slide member is made of material different from the edges of the guide groove.
摘要:
In a tape cassette housing including a lid which protects the tape at the front of the housing, and a lid locking member turnably pivoted in the housing and having two leg levers, one to lock the lid when the latter closes the front opening of the housing and the other to release the lid when the same is turned open, the distance between the rotational center of the pivot of the lid locking member and the crown of its head is longer than the distance between the center of pivot bearing in the housing and the rear wall of a space in which the lid locking member is mounted.
摘要:
A magnetic disc cartridge is composed of a pair of upper and lower case members so as to form a hard case to accommodate a magnetic disc therein. An aperture for access of a read-write head to the magnetic disc extends in a radial direction, which aperture is selectively covered by a shutter. The case has a groove on the peripheral edge thereof to receive a shutter actuation pin. The groove extends across the adjoining surfaces of the two case members. A groove portion defined by the lower case member is more enlarged than the remaining groove portion defined by the upper case member so that the shutter actuation pin does not catch in the step between the two groove portions.