Apparatus for vibrating seats

• US 5,542,741 A
• Filed: 12/19/1994
• Issued: 08/06/1996
• Est. Priority Date: 12/04/1992
• Status: Expired due to Fees

• Current Assignee: Fukuoka Kagaku Limited
• Original Assignee: Fukuoka Kagaku Limited
• Inventors: Fukuoka, Masahiro
• Primary Examiner(s): Nelson, Jr., Milton
• Application Number:
  US08/358,251
• Time in Patent Office: 596 Days
• Field of Search: 297/217.1, 297/217.3, 297/217.7, 297/344.1, 297/344.12, 297/344.18, 297/344.19, 297/344.2, 297/463.1, 297/463.2
• US Class Current: 297/217.3
• CPC Class Codes: A47C 3/02 Rocking chairs specially for children A47D13/10
• CPC Class Codes: B60N 2/24 for particular purposes or particular vehicles
• CPC Class Codes: B60N 2/502 attached to the base of the seat B60N2/504 takes precedence
• CPC Class Codes: B60N 2/544 Compression or tension springs B60N2/542 takes precedence

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

1. An apparatus for vibrating a seat comprising a driver'"'"'s seat, means for vibrating said driver'"'"'s seat and means for controlling vibration of said means for vibrating the driver'"'"'s seat,

wherein said means for vibrating said driver'"'"'s seat comprises a rod having one end sliding-freely in a cylinder chamber and the other end projected outward from said cylinder chamber and connected to said driver'"'"'s seat, a piston connected to said one end of said rod and sliding-freely in said cylinder chamber, means for supplying pressure fluid to said cylinder chamber, a channel control valve for supplying and discharging said pressure fluid to said chamber of said cylinder and means for controlling said valve for repeatedly freely sliding said piston,

wherein said means for supplying pressure fluid to said cylinder chamber includes a vibration generator having a coil.

2. The apparatus for vibrating a seat as in claim 1, wherein said means for controlling said valve includes a plurality of pressure fluid lines operably coupled to said cylinder chamber and to said means for supplying pressure fluid.