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Magnetic cassette tape reel

A tape reel and magnetic tape technology, applied to carrier storage devices, tape-like recording carriers, packaging, etc., can solve the problems of poor playback compatibility and irreversible recovery

Inactive Publication Date: 2006-11-22
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it will cause a major defect that cannot be recovered due to the poor recording and broadcasting compatibility of the magnetic tape 462

Method used

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  • Magnetic cassette tape reel
  • Magnetic cassette tape reel
  • Magnetic cassette tape reel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0103] Embodiments of the present invention will be described below with reference to the drawings.

[0104] Embodiment 1 of the present invention

[0105] figure 1 It is a plan view showing the lower half of the tape cassette using the master reel according to the first embodiment of the present invention. In addition, FIG. 2 is a cross-sectional view of a control reel for an M tape cassette, image 3 It is the bottom view of A direction of the control reel for the M tape cassette in Fig. 2 . Figure 4 is a cross-sectional view of the control reel for the L cassette, Figure 5 yes Figure 4 Bottom view from direction B of the tape control reel for the middle L tape cassette.

[0106] exist figure 1 Among them, the magnetic tape cassette 610 of M size or L size makes the winding tape t (refer to Figure 20 ) of a pair of control reels 612a, 612b (the right control reel is omitted in the figure) is rotatably supported on the lower half case 611 corresponding to the uppe...

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Abstract

A magnetic tape winding device, comprising a driving mechanism and a magnetic field forming mechanism; the driving mechanism, by rotating the tape control reel, winds the magnetic tape at a winding speed of 2-2.5m / s and a winding tension of 65-70g. On the tape control reel; the magnetic field forming mechanism has a magnet made of neodymium material with a magnetic flux density of 12800-13300G and is set opposite to the upper wheel of the tape control reel at a distance of 12-17mm, from the tape control reel One side of the upper disc forms a magnetic field on the magnetic tape.

Description

[0001] This application is a divisional application, the application number of its parent application: 00809379.2, the application date: 2000.6.22, the name of the invention: tape control reel for magnetic tape cassette technical field [0002] The present invention relates to a tape control reel of a magnetic tape cassette such as a digital video cassette (DVC), and more particularly relates to a structure for efficiently ultrasonically welding the welding protrusions of the tape control reel, and to make the reels wound on the control tape The tape on the reel maintains a good shape structure, and it can ensure its good dust resistance in the non-use state of the tape cassette, and can prevent the deformation of the lower reel of the tape control reel, and prevent the A construction in which the reels contact to cause damage to the tape, and a characteristic construction in the hub. [0003] In addition, the present invention also relates to a tape winding device for winding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B23/087G11B23/113G11B15/66G11B23/037
CPCG11B15/66G11B23/037G11B23/08728B65B51/225G11B2220/90
Inventor 内仓英纪桥本明裕
Owner FUJIFILM CORP