# US 5,710,686 A · Tape cassette with main body and slider lock formed by dichromatic molding

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,710,686 A
- Document ID: US5710686A
- Status: Granted
- Kind: A
- Application number: 08/571,350
- Filed: 1995-12-13
- Granted: 1998-01-20
- Earliest claimed: 1994-12-28
- Assignees: Sony Corporation
- Inventors: Hiroshi Meguro
- Web page: https://patentgrep.com/patent/US5710686A

## CPC

- G11B 23/08735: {Covers}
- G11B 23/08785: {Envelopes}
- 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 tape cassette includes a cassette housing having formed therethrough a hub drive shaft insertion aperture, a slider slidably mounted on the lower surface of the casette housing so as to open and/or close the hub drive shaft insertion aperture or the like and a slider locking piece for locking the slider at a predetermined position in which the slider locking piece is molded together with the main body of the cassette housing by dichromatic molding.

## Claims

### Claim 1

A tape cassette assembly comprising:
a cassette housing formed of a first cast resin including a main body and having formed therethrough a hub drive shaft insertion aperture at a step-shaped bonding portion at a predetermined location therein;
a slider being slidably mounted on a lower surface of said cassette housing to open and/or close said hub drive shaft insertion apertures; and
a slider locking piece for locking said slider at a predetermined position, wherein said slider locking piece is formed of a second cast resin selected from one of a resin having excellent abrasion resistance and a resin having good lubricity and is attached to said main body by dichromatic molding at said step-shaped bonding portion for increasing a bonding area between said slider locking piece and said main body.

### Claim 2 (depends on 1)

The tape cassette as claimed in claim 1, wherein said slider locking piece has a shape such that a gate through which said second resin is cast to mold said slider locking piece is formed at a base portion of said slider locking piece.

### Claim 3 (depends on 1)

The tape cassette as claimed in claim 1, in which said slider locking piece comprises left and right slider locking portions, and said slider locking piece has a shape such that a gate through which said second resin is cast to mold said left and right slider locking portions is formed at a substantially central position between said left and right slider locking portions.

### Claim 4 (depends on 1)

The tape cassette as claimed in claim 1, wherein said second resin having excellent abrasion resistance is acrylonitrile-butadiene-styrene with polycarbonate.

### Claim 5 (depends on 1)

The tape cassette as claimed in claim 1, in which said second resin having good lubricity is acrylonitrile-butadiene-styrene with silicon.