US 6,866,217 B2Granted

Idler mechanism for magnetic tape device and tape device

AssigneeFunai Electric Co., Ltd.

InventorsKunio Sawai, Daisuke Takasaka

Life of this patent

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Abstract

An idler mechanism for a magnetic tape device. An idler gear is swingingly displaced between first and second positions to selectively transmit rotation to one of a pair of reels. One end of an arm-like swinging member is coupled in a relatively rotatable manner to a center shaft of an input gear which always meshes with the idler gear and which is rotated forwardly and reversely. A shaft which is disposed on the other end of the swinging member is inserted in a relatively rotatable manner into a bearing hole of the idler gear. A surface of a flange which is disposed on the input gear is formed as a friction force applying face which extends radially outwardly so as to be inclined downwardly. An outer peripheral portion of the idler gear slidably comes into contact with the friction force applying face.

Claims9

Dependent claims

An idler mechanism for a magnetic tape device, comprising:

a pair of reels;
an idler gear swingingly displaced between first and second positions to selectively transmit rotation to one of the pair of reels, the idler gear having a bearing hole;
an input gear meshing with the idler gear, the input gear having a center shaft that is rotated forwardly and reversely and a flange projecting from a periphery of the input gear;
a swing member arm having one end coupled in a relatively rotatable manner to the center shaft, the swinging member having a shaft integrally formed with the swinging member on the other end and being inserted in a relatively rotatable manner into the bearing hole;
wherein the flange comprises a friction force applying face, the friction force applying face being inclined and extending radially outwardly relative to the center shaft, and
an outer peripheral portion of the idler gear that is held in a space between the friction force applying face and the swinging member slidably comes into contact with the friction force applying face in a part where the input gear meshes with the idler gear.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/304,258Filed 26 Nov 2002
Priority: JP 2001-007748 U28 Nov 2001
Published: US 2003/0098376 A129 May 2003
Granted: 15 Mar 2005
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

G11B 15/444
Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor: reversing arrangements
G11B 15/32
Driving record carriers by members acting directly or indirectly thereon: through the reels or cores on to which the record carrier is wound
G11B 15/50
Controlling, regulating, or indicating speed: by mechanical linkage, e.g. clutch
G11B
Information storage based on relative movement between record carrier and transducer