# US 6,296,529 B2 · Bulb socket and connection construction of wire

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- Number: US 6,296,529 B2
- Document ID: US6296529B2
- Status: Granted
- Kind: B2
- Application number: 09/738,775
- Filed: 2000-12-18
- Published: 2001-05-03
- Granted: 2001-10-02
- Earliest claimed: 1998-02-25
- Assignees: Sumitomo Wiring Systems, Ltd.
- Inventors: Fumiyoshi Tanigawa
- Web page: https://patentgrep.com/patent/US6296529B2

## CPC

- H01R 33/09: for baseless lamp bulb
- H01R 4/14: by wrapping
- H01R 13/24: resilient; resiliently-mounted
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

A plastic covering 32 of an electric wire 30 is removed, exposing a core wire 31, this core wire 31 being attached to core wire receiving members 13 of a lamp body 10. Attaching a bulb socket 20 to the lamp body 10 causes the core wire to be resiliently held between contact members 24D of the bulb socket 20 and the core wire receiving members 13, thereby connecting the bulb socket 20 and the electric wire 30. The core wire 31 makes direct contact with the contact members 24D, and therefore connecting terminals are not required between the bulb socket 20 and the electric wire 30, the number of components is thus decreased.

## Claims

### Claim 1

An electrical connecting structure comprising a body having an aperture and an insulated electric wire having an exposed portion with the insulation absent, a bulb socket inserted into said aperture of the body and secured therein by rotation of the bulb socket, said bulb socket having an electrical contact which is placed in direct contact with said exposed portion of the wire upon rotation of said bulb socket in said body, and a projection on said body around which said exposed portion is wound to locate said exposed portion of said wire.

### Claim 2 (depends on 1)

A structure according to claim 1 wherein said projection has a transversely extending member at the end thereof, said member retaining said exposed portion against movement of said exposed portion in the direction of the projection thereof.

### Claim 3

An electrical connecting structure comprising a body having an aperture and an insulated electric wire having an exposed portion with the insulation absent, a bulb socket inserted into said aperture of the body and secured therein by rotation of the bulb socket, said bulb socket having an electrical contact which is placed in direct contact with said exposed portion of the wire upon rotation of said bulb socket in said body, and wire retaining means for engagement with said wire on both sides of said exposed portion.

### Claim 4 (depends on 3)

A structure according to claim 3 wherein said guide has an open channel in which said exposed portion lays.

### Claim 5 (depends on 3)

A structure according to claim 3 wherein said retaining means is adapted to indent said wire.

### Claim 6 (depends on 3)

A structure according to claim 3 wherein said retaining means is adapted to indent said wire.

### Claim 7 (depends on 3)

A structure according to claim 3 wherein said exposed portion of the wire is supported on one side and uncovered on another side facing the direction of insertion of said bulb socket in the aperture.

### Claim 8 (depends on 7)

A structure according to claim 7 wherein said exposed portion of the wire is located by a guide on said body.

### Claim 9 (depends on 8)

A structure according to claim 8 wherein said guide has an open channel in which said exposed portion lays.

### Claim 10 (depends on 8)

A structure according to claim 8 wherein said guide is a projection around which said exposed portion is wound.

### Claim 11 (depends on 10)

A structure according to claim 10 wherein said projection has a transversely extending member at the end thereof, said member retaining said exposed portion against movement of said exposed portion in the direction of the projection thereof.