Unlock instant, AI-driven research and patent intelligence for your innovation.

Recording or reproduction appts. with holding and removing device for disc-type recording media

A technology for recording media and reproducing equipment, which is applied in the fields of recording information storage, instruments, etc., and can solve the problems of difficulty in realizing the interchangeability of recording media.

Inactive Publication Date: 2004-03-31
DEUTSCHE THOMSON-BRANDT GMBH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recording media can be removed only by applying a force perpendicular to the direction of motion of the platter turntable, making recording media interchangeability more difficult to achieve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Recording or reproduction appts. with holding and removing device for disc-type recording media
  • Recording or reproduction appts. with holding and removing device for disc-type recording media
  • Recording or reproduction appts. with holding and removing device for disc-type recording media

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In a known recording or reproducing apparatus with a mounting member for a disk-shaped recording medium, the mounting member fixes the recording medium with a device provided on the disk turntable, and figure 1 with 2The corresponding disc turntable includes a tank-shaped body 1 which is pushed onto the sleeve 2 and closed by a disc 3. A spring-elastic body 4 made of rubber or a material with the same effect is inserted into the inside of the tank-shaped main body 1, and a ball 6 is installed on the tank-shaped main body 1 at the outer periphery 5 of the tank-shaped main body 1. In the opening 7 in the wall 8, the angular interval between each ball is 120 degrees. The opening 7 in the wall 8 is configured conically so that the ball 6 does not fall out. The ball 6 protrudes inward and outward at the same time, and is pressed outward by the elastic force of the rubber body 4. During the placement of the recording medium 9 indicated by the broken line, the resistance of the b...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a recording or reproduction apparatus with a holding and removing device for disc-type recording media which facilitates the emplacement and removal of the recording medium. According to the invention, the holding and removing device is formed by a cover of the hub of the disc turntable, by means of which, during the emplacement or removal of the recording medium, the holding force with which a recording medium is held on the disc turntable is reduced. The loading on the recording medium during emplacement or removal is thereby advantageously reduced and the special configuration of the cover as restoring means has the result that no additional individual parts are necessary. In an advantageous manner, the recording medium is both held and centred on the disc turntable with a force which is greater than a resistance encountered by the recording medium during emplacement or removal. The field of application of the invention extends to recording or reproduction apparatuses with a holding and removing device provided on the disc turntable for disc-type recording media, such as, CD, CD-ROM or DVD drives.

Description

Technical field [0001] The invention relates to a recording or reproducing device with a fixing and removing device for a disc-shaped recording medium, which uses a device arranged on a disc turntable to clamp or release the recording medium. Background technique [0002] A disc turntable with a hub for holding a recording medium on a disc turntable and penetrating a central hole in the recording medium in a recording or reproducing apparatus has long been known. Thus, as early as in DE-U7005274, a mounting member for a recording medium was proposed, which fixes the recording medium radially outward and downward on the disc turntable. Corresponding embodiments of known mounting parts for recording media are described in Figure 1 to 4 Shown in. A separate spring element is arranged around the hub of the disc turntable, and the recording medium is pressed on the disc turntable with a central hole by the spring element. The ball is provided as a spring element, the ball partially p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B17/028
CPCG11B17/0282G11B19/2045
Inventor 曼弗雷德·卡默勒
Owner DEUTSCHE THOMSON-BRANDT GMBH