摘要:
Package for pancakes, consisting of plate-like plastic pallets (1) which protect the outer pancakes and, if necessary, raised rubs (3) in the center of the pallets, the diameter of which corresponds to the inside diameter of the bores of the winding cores and wherein the package can be sealed by means of a shrink film (4) coated thereon. The inner surfaces (2) of the plastic pallets (1) taper off in a sloping manner towards the outside at least in the region of the tape reel (5) of the pancakes, so that the inner surfaces (2) rest against the pancake in a uniform manner over the entire region of the tape reel (5) (FIG. 1).
摘要:
A cover for the light channel for a device for switching-off at the end of its run a magnetic cassette tape with a transparent leader tape, an opening being provided in the bottom part of the cassette for accommodating the light, the opening being defined by a one- or two-part light shaft having slotted light channels for the passage of the beams of light towards the light-receiving elements on the side of the device, the light shaft 5 located only in the bottom part of the cassette being provided with an encircling ledge 8 below the light channels, 6, 7 on which ledge a flexible piece of film 9 rests which is transparent at least in the region of the light channels, or the light shaft, which is divided in the middle and fills out the height of the interior of the cassette housing, has an encircling ledge 8, 10 in each of the top and bottom parts 5, 5 a thereof, outside the region of the light channels, between which a flexible transparent piece of film 12 covering the light channels rests, the piece of film being supported on the inside wall of the light shaft.
摘要:
In order to avoid blocking of the tape travel in a compact cassette deriving from loop formation, an oblique rib is provided between tape cavity and idler roller. The rib ends in close vicinity of the side walls of the cassette leaving only a narrow passage between its free end and the side wall for the tape travel.
摘要:
A winding hub for tape information carriers is designed with spring elements between an inner ring and an outer ring for providing a compression ratio from the inner diameter to the outer diameter of less than 1:4. To increase the holding forces of the winding hub during reeling, the spring elements are assigned limiter elements.
摘要:
A hollow-cylindrical supporting core for pancakes which is produced from recyclable plastic by injection molding is described, the arms, which may be angled off, which extend from the gating point and run to the inside diameter of the supporting core remaining in place after demolding of the injection mold and being suitable as holding grips for the supporting core.
摘要:
A right-parallelepipedal multipack for vertically stacked wound rolls, comprising a rectangular pallet (1), a rectangular base plate (3), located on said pallet and provided with a multiplicity of clearances (2), an identically constructed intermediate plate (5) and a likewise identical top plate (6), a multiplicity of wound rolls (4) respectively stacked in-between and means (7, 8, 9) for fixing the pack and the wound rolls, wherein the wound rolls are recording media (10) in tape form which are wound-up on flangeless hubs (11) which are provided with inner bores and through which there is fitted a hub sleeve (8) which is mounted non-displaceably in the clearances (2) of the base plate (3), intermediate plate (5) and top plate (6), and a cover (9), provided with a ring, being adapted to fit onto the upper end of the hub sleeve (8) above the top plate, the lateral four corners of the pack being secured by vertically attached corner parts (7) and a stretch film (12 ) being drawn around the side parts of the pack.
摘要:
A hub, on which compressing of the inner central bore is to be minimized during the winding up of an information medium in tape form under high winding pressure. According to one embodiment, this is achieved by an outer hub ring having a strong profile being provided alongside the outer winding area and by there also being elastically deformable intermediate elements between outer hub ring and inner hub ring. Such elements provide for a compression ratio of the compressed diameters of a the inner to the outer ring of less than 1:4. In the case of a further embodiment, variously shaped openings or notches, which are distributed evenly over the entire circumference, are provided on both sides of the hub between its outer circumference and inner circumference. In a still further embodiment the elastically deformable intermediate elements consist of webs running in radial and circumferential directions and residual portions between openings provided between the periphery of the outer ring and said webs.
摘要:
A novel packaging for several tape-form recording media (5) wound on reel cores (6) or spools provided with internal bores consists of two pallets (1, 2) and optionally hubs (3) which are raised in the axial center (10) and of which the diameter corresponds to the clear internal diameter of the bores of the reel cores (6). The packaging can be sealed by a shrink film (4) which can be pulled thereover. The cuboid pallets (1, 2) which can be joined together have groove-like notches (7) at their edges, the interior of the pallets reproduces the outer shape of the pancakes (5) and the weld seam (8) of the shrink film (4) is formed in one of the notches (7). The pallets (1, 2) also have window-like cutouts (9) on their four narrow sides. Pallets as well as the hub (3) passing through the axial center (10) of the pancakes are preferably composed of Styropore (FIG. 1).
摘要:
Magnetic tape cassette for magnetic recording and playback devices, comprising a substantially rectangular, two-part housing which has an upper main wall and an opening along its front side, along which the magnetic tape is transported from two plane-parallel positioned reels, and a pivotal front lid which partly overlaps the side walls and which release and closes the opening, and which comprises an outer cover and an inner cover by which the magnetic tape is enclosed in the closed position of the front lid being biassed by means of torsion springs, one of the pivot pins 12 on the inside wall of the side part 10a of the front lid 7 accomodating a one-armed flat spiral spring 13, the arm 16 of which, pointing towards the front lid, has a length which extends up to the outer cover 8 of the front lid, and the arm in the ready made cassette lies in a groove 18 on the front end of the upper part of the cassette. This construction ensures reliably transportable and simple mounting of the front lid and housing during assembly of the cassette and avoids the danger of the front lid being blocked in pivoting on account of the limited space between front lid and front end of the upper cassette part.
摘要:
This invention relates to a spool for video cassettes comprising at least one flange which is raised from or deposited onto the base of the cassette against the force of a spring. The spool has a hollow-cylindrical projection (11) which is open to the outside, in the center of the top of the spool hub, in which projection (11) a spherical body (12) of abrasion-proof plastics material is clamped, for example, polyoxymethylene. The spherical cap protruding from the projection protrudes beyond other pins (10) which are optionally moulded on the surface. The spool itself is made of a different, plastics material of less hardness compared with that of the spherical body.