US 7,890,965 B2Granted

Disk carrying device for use with a small diameter disk or a large diameter disk

AssigneeNidec Pigeon Corporation

InventorKunio Kido

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Abstract

A disk carrying device including a transporting roller for carrying a disk, a turntable and a clamper for holding the disk, a trigger plate moved by carrying of the disk to a chucking position for changing a transmission route of driving force from the transporting roller to a cam plate, a first biasing means for urging the trigger plate to a position before moving, a guide base for pressing the disk on the transporting roller, an arm roller disposed on an opposite side of the guide base with respect to the transporting roller so as to move the guide base apart from the transporting roller, and a second biasing means disposed between the guide base and the arm roller. The second biasing means is extended when the disk is present between the guide base and the transporting roller and generates urging force pulling the guide base to the transporting roller.

Claims1

Dependent claims

A disk carrying device for use with a small diameter disk or a large diameter disk, the disk carrying device comprising:

a pair of detection arms;
and
a switching arm linked with either of the pair of detection arms and provided with a first cam hole on one end, a second cam hole on an other end, and a protruded part;
wherein the first cam hole is provided with a space for allowing movement of a shaft of one of the pair of detection arms when the small diameter disk is inserted so that the switching arm is not moved due to movement of the shaft of the detection arm, and the first cam hole is formed so that, when the large diameter disk is inserted, the switching arm is moved by movement of the shaft through the first cam hole;
wherein the second cam hole is structured to move a rotary axis of a disk end detection lever for detecting a state of a large diameter disk which is inserted and carried to a predetermined position so that the rotary axis of the disk end detection lever is capable of being moved from a first engagement part in a frame to a second engagement part and, when the large diameter disk is inserted again without taking out after the large diameter disk has been ejected, the rotary axis is guided along a slant face so that the rotary axis is engaged with the second engagement part;
wherein the protruded part of the switching arm moves a guide lever at a time of insertion of the large diameter disk so that a stopper part for positioning the small diameter disk is retreated from a disk playing space and, when the large diameter disk is inserted again without taking out after the large diameter disk has been ejected, the stopper part for positioning the small diameter disk is maintained in a retreated state from the disk playing space.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/419,516Filed 7 Apr 2009 · division
Priority: JP 2004-11962114 Apr 2004
Published: US 2009/0254929 A18 Oct 2009
Granted: 15 Feb 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G11B 17/051
Specially adapted for discs not contained within cartridges: direct insertion, i.e. without external loading means
G11B 17/0288
Of discs rotating during transducing operation: by means for moving the turntable or the clamper towards the disk
G11B 17/0404
Servo control: with parallel drive rollers
G11B
Information storage based on relative movement between record carrier and transducer

Family

Application11/104,772Parent of this division · filed 13 Apr 2005
US 2009/0254929 A1Pre-grant publication · published 8 Oct 2009
US 7,559,068 B2Parent of this division
US 2005/0235300 A1Published application
US 7,890,965 B2This patent

From the US filing history. Foreign family members aren’t listed.