# US 5,704,563 A · Reel-table driving mechanism with idler friction wheel and reel friction wheel for use in tape recording/reproducing apparatus

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- Number: US 5,704,563 A
- Document ID: US5704563A
- Status: Granted
- Kind: A
- Application number: 08/659,184
- Filed: 1996-06-06
- Granted: 1998-01-06
- Earliest claimed: 1995-06-30
- Assignees: Samsung Electronics Co., Ltd.
- Inventors: Do Young Choi
- Web page: https://patentgrep.com/patent/US5704563A

## CPC

- G11B 15/444: {reversing arrangements (G11B15/442 takes precedence)}
- G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)

## Abstract

A reel-table driving mechanism of a tape recording/reproducing apparatus is operative to selectively drive two reel-tables. An idler has an idler friction wheel sharing a common shaft with an idler gearing portion. Each reel-table has a reel friction wheel rotating while making contact with the idler friction wheel which ensures the idler gearing portion meshes with the reel gear while maintaining an appropriate distance between the shafts of the reel table and the idler.

## Claims

### Claim 1

A reel-table driving mechanism for use in a tape recording/reproducing apparatus, comprising:
two reel-tables each having a reel gear formed thereon;
an idler movably installed between said reel-tables and having a gearing portion formed thereon for selectively engaging with the reel gears of said reel-tables,
wherein said idler has an idler friction wheel sharing a common shaft with said idler on which said gearing portion is formed and wherein each of said reel-tables has a reel friction wheel which makes contact with an outer peripheral surface of said idler friction wheel while the gearing portion meshes with the reel gear and maintains an appropriate distance between a shaft of each of the reel tables and the shaft of the idler.

### Claim 2 (depends on 1)

The reel-table driving mechanism as claimed in claim 1, wherein said idler friction wheel and said reel friction wheel are made of rubber.

### Claim 3 (depends on 1)

The reel-table driving mechanism as claimed in claim 1, wherein said idler friction wheel and said gearing portion are formed separately so as to move relative with respect to one another.

### Claim 4 (depends on 1)

The reel-table driving mechanism as claimed in claim 1, wherein said idler friction wheel and said gearing portion are attached to each other.

### Claim 5

A reel-table driving mechanism comprising:
two reel-tables each having a reel gear formed thereon;
an idler movably installed between said reel-tables and having a gearing portion formed thereon for selectively engaging with the reel gears of said reel-tables;
a capstan motor; and
a driving gear driven by said capstan motor to rotate said idler,
wherein said idler has an idler friction wheel sharing a common shaft with said idler on which said gearing portion is formed and wherein each of said reel-tables has a reel friction wheel which makes contact with an outer peripheral surface of said idler friction wheel while the gearing portion meshes with the reel gear and maintains an appropriate distance between a shaft of each of the reel tables and the shaft of the idler.

### Claim 6 (depends on 5)

The reel-table driving mechanism as claimed in claim 5, wherein said idler friction wheel and said reel friction wheel are made of rubber.

### Claim 7 (depends on 5)

The reel-table driving mechanism as claimed in claim 5, wherein said idler friction wheel and said gearing portion are formed separately.

### Claim 8 (depends on 5)

The reel-table driving mechanism as claimed in claim 5, wherein said idler friction wheel and said gearing portion are attached to each other.