# US 5,348,370 A · Apparatus for vibrating seats

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- Number: US 5,348,370 A
- Document ID: US5348370A
- Status: Granted
- Kind: A
- Application number: 07/987,481
- Filed: 1992-12-04
- Granted: 1994-09-20
- Earliest claimed: 1992-12-04
- Assignees: Fukuoka Kagaku Ltd.
- Inventors: Masahiro Fukuoka
- Web page: https://patentgrep.com/patent/US5348370A

## CPC

- B60N 2/502: {attached to the base of the seat (B60N2/504 takes precedence)}
- B60N 2/24: for particular purposes or particular vehicles
- B60N 2/544: {Compression or tension springs (B60N2/542 takes precedence)}
- B60N 2002/981: {Warning systems, e.g. the seat or seat parts vibrates to warn the passenger when facing a danger}
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

A driver's seat having a vibration generator connected to the driver's seat and controls for turning the vibration generator on and off for vibrating the driver's seat so that when a driver feels drowsiness coming on, the driver can operate the controls for switching on-off the vibration generator so that the driver's seat can be vibrated and prevent the driver from dozing during driving and prevent an accident from occurring.

## Claims

### Claim 1

An apparatus for vibrating a seat, comprising:
a driver's seat;
base means for supporting said driver's seat;
fastener means for supporting said seat onto said base means, said fastener means being positioned between said seat and said base means;
vibrating means for vibrating said driver's seat, said vibrating means being mounted underneath said base means;
spring means for resiliently supporting said base means onto a bed member; and
control means for controlling said vibrating means in vibrating the seat,

### Claim 2 (depends on 1)

An apparatus for vibrating a seat as recited in claim 1, wherein said fastener means comprises a plurality of angle fasteners, each having a substantially L-shaped configuration, and having at least a stationary plate bolted onto a radial outward slant thereof.

### Claim 3 (depends on 1)

An apparatus for vibrating a seat as recited in claim 1, wherein said vibrating means for vibrating said driver's seat comprises a vibrating motor connected to said driver's seat.

### Claim 4 (depends on 3)

An apparatus for vibrating a seat as recited in claim 3, wherein said vibrating motor includes an output shaft having, on opposite ends thereof, eccentric loads for causing vibration of said base means and said seat.

### Claim 5 (depends on 4)

An apparatus for vibrating a seat as recited in claim 4, wherein said eccentric loads comprise at least a fixed load and at least an adjustable load.