WO1995024717A1 - Dispositif de fixation d'un disque porteur de donnees sur un plateau d'entrainement - Google Patents

Dispositif de fixation d'un disque porteur de donnees sur un plateau d'entrainement Download PDF

Info

Publication number
WO1995024717A1
WO1995024717A1 PCT/IB1995/000130 IB9500130W WO9524717A1 WO 1995024717 A1 WO1995024717 A1 WO 1995024717A1 IB 9500130 W IB9500130 W IB 9500130W WO 9524717 A1 WO9524717 A1 WO 9524717A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
disc
pressure member
disc pressure
mmtable
Prior art date
Application number
PCT/IB1995/000130
Other languages
English (en)
Inventor
Theodoor François Henriette THIJS
Original Assignee
Philips Electronics N.V.
Philips Norden Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Electronics N.V., Philips Norden Ab filed Critical Philips Electronics N.V.
Priority to JP7523336A priority Critical patent/JPH08510586A/ja
Priority to EP95909073A priority patent/EP0708965A1/fr
Publication of WO1995024717A1 publication Critical patent/WO1995024717A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/032—Positioning by moving the door or the cover

Definitions

  • the scanning device in accordance with the invention comprises a device for clamping an information disc onto the turntable 11.
  • the clamping device comprises a carrier with a disc pressure member 17, which carrier is movable between a first position and a second position and is formed by the cover 7.
  • the disc pressure member 17 In the first position, which corresponds to the closed position of the cover 7, the disc pressure member 17 cooperates with the mmtable 11 to retain an information disc lying on the mmtable.
  • the disc pressure member 17 is entirely clear of the cover 7 and the required clamping force is provided by a magnet system having a first part 16, for example a permanent magnet, situated in the disc pressure member 17 and a second part 18, for example a soft-magnetic disc, situated in the mmtable 11.
  • Figure 4 shows the cover 7 in the first position.
  • Figure 3 shows the cover 7 in the second or open position, in which position the disc pressure member 17 is supported by the cover.

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

L'invention se rapporte à un dispositif de fixation d'un disque porteur de données sur un plateau d'entraînement, ce dispositif comprenant un cadre, un plateau d'entraînement pour supporter un disque porteur d'informations, ce plateau étant supporté par le cadre et tournant autour d'un axe de rotation, et un support (7) qui peut se déplacer entre une première et une seconde position, ce support possédant un élément (17) faisant pression sur le disque afin de serrer le disque porteur de données sur le plateau d'entraînement dans la première position du support. Le support comprend des éléments élastiques (19) qui sont surélevés par rapport à l'élément faisant pression sur le disque dans la première position du support et qui retiennent cet élément dans la seconde position du support.
PCT/IB1995/000130 1994-03-09 1995-03-02 Dispositif de fixation d'un disque porteur de donnees sur un plateau d'entrainement WO1995024717A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP7523336A JPH08510586A (ja) 1994-03-09 1995-03-02 ターンテーブル上の情報ディスクのクランプ装置
EP95909073A EP0708965A1 (fr) 1994-03-09 1995-03-02 Dispositif de fixation d'un disque porteur de donnees sur un plateau d'entrainement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94200592.7 1994-03-09
EP94200592 1994-03-09

Publications (1)

Publication Number Publication Date
WO1995024717A1 true WO1995024717A1 (fr) 1995-09-14

Family

ID=8216696

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1995/000130 WO1995024717A1 (fr) 1994-03-09 1995-03-02 Dispositif de fixation d'un disque porteur de donnees sur un plateau d'entrainement

Country Status (3)

Country Link
EP (1) EP0708965A1 (fr)
JP (1) JPH08510586A (fr)
WO (1) WO1995024717A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0255166A1 (fr) * 1986-07-28 1988-02-03 Koninklijke Philips Electronics N.V. Dispositif de serrage pour serrer un disque optique sur un plateau d'entraînement et lecteur de disque comportant un tel dispositif de serrage
EP0287153A1 (fr) * 1987-04-08 1988-10-19 Koninklijke Philips Electronics N.V. Dispositif d'enregistrement d'information sur un disque d'information ou de lecture de ce disque
DE3303705C2 (fr) * 1982-02-09 1989-03-09 Staar S.A., Bruessel/Bruxelles, Be

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303705C2 (fr) * 1982-02-09 1989-03-09 Staar S.A., Bruessel/Bruxelles, Be
EP0255166A1 (fr) * 1986-07-28 1988-02-03 Koninklijke Philips Electronics N.V. Dispositif de serrage pour serrer un disque optique sur un plateau d'entraînement et lecteur de disque comportant un tel dispositif de serrage
EP0287153A1 (fr) * 1987-04-08 1988-10-19 Koninklijke Philips Electronics N.V. Dispositif d'enregistrement d'information sur un disque d'information ou de lecture de ce disque

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 15, No. 95, P-1176; & JP,A,2 308 466 (MATSUSHITA ELECTRIC IND CO LTD), 21 December 1990 (21.12.90). *

Also Published As

Publication number Publication date
JPH08510586A (ja) 1996-11-05
EP0708965A1 (fr) 1996-05-01

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