Acoustic warning apparatus for vehicle

• US 3,909,842 A
• Filed: 02/04/1974
• Issued: 09/30/1975
• Est. Priority Date: 02/04/1974
• Status: Expired due to Term

• Current Assignee: Akio Noji
• Original Assignee: Akio Noji
• Inventors: Noji, Akio
• Primary Examiner(s): Moffitt, James W.
• Application Number:
  US05/439,614
• Time in Patent Office: 603 Days
• Field of Search: 360/12 179/1.1C,1VE 340/221
• US Class Current: 340/460
• CPC Class Codes: B60Q 5/00 Arrangement or adaptation of acoustic signal devices

Abstract

An acoustic warning apparatus for a vehicle comprising a detecting device for detecting the occurrence of an abnormal condition at any of a plurality of checking points in a vehicle, a warning device for giving a warning as to the occurring of an abnormal condition by an appropriate colloquial speech recording by automatically selecting, simultaneously with the occurrence of the abnormal condition, a track channel on a tape that corresponds to the abnormal condition and reproducing the same, a warning stop for interrupting the warning and a warning stop release for operating the foregoing warning device again from the beginning, after the warning is once stopped, by means of an engine ignition switch or otherwise.

Claims

1. An acoustic warning apparatus adapted for giving audible warnings corresponding respectively to abnormal conditions which may taken place in a vehicle, said apparatus comprising detecting means for independently detecting each of said abnormal conditions when they occur, a record means having recorded thereon a plurality of signals corresponding to said warnings, said signals being adapted for being read as respective audible warnings, transducer and driving means for reading one of said signals at a time, control circuit means responsive to said detector means for selecting the appropriate signal to be read and for actuating said transducer and driving means, warning stop means for interrupting the reading of a signal, warning stop release means for overriding said warning stop means and enabling a signal to be read, said warning stop release means including an ignition switch for said vehicle and a circuit operated by said switch to enable the reading of the latter said signal, said transducer and driving means including an amplifier means for amplifying the signal which is read and a motor circuit means for driving the record means, said warning stop means including a switch coupled to said amplifier means for deactivating the same, said motor circuit means being independent of the warning stop means to drive the record means through a cycle so that it is prepared to operate anew upon the next operation of the detecting means, said record means including a magnetic tape, said transducer and driving means including a magnetic head for scanning said tape and moving means for incrementally moving the head transversely of said tape, said control circuit means including an oscillator means and first transistor means coupling the oscillator means selectively to said moving means.

2. Apparatus as claimed in claim 1 comprising means for recording a further signal on said tape.

3. Apparatus as claimed in claim 1 wherein the tape has recorded thereon measures for correcting the abnormal conditions.

4. Apparatus as claimed in claim 1 wherein said detecting means includes a plurality of sensing switches and said control circuit means includes a multiple contact switch mechanically coupled to said moving means, second transistor means coupled to said oscillator to actuate the same, the contacts of said multiple contact switch being coupled in parallel to said sensing switches, and a third transistor means coupled to said multiple contact switch and to said second transistor means, said second transistor means actuating said oscillator means when one of the sensing switches is actuated and until the multiple contact switch is adjusted by the moving means to the contact corresponding to the actuated sensing switch at which time the third transistor means deactivates the second transistor means and stops the moving means.

5. Apparatus as claimed in claim 4 wherein the control circuit means includes a flip flop and a fourth transistor means coupling said multiple contact switch to said flip flop whereby the flip flop is operated by the latter, said flip flop being coupled to and controlling said motor circuit means.

6. Apparatus as claimed in claim 5 comprising capstan means for engaging and driving said tape and coupled to and controlled by said flip flop.

7. Apparatus as claimed in claim 6 wherein said motor circuit means includes timing circuit means to drive the motor circuit means for a predetermined period of time.

8. Apparatus as claimed in claim 7 comprising a plurality diodes coupling said sensing switches to said second transistor means.

9. Apparatus as claimed in claim 4 wherein the tape has recorded thereon measures for correcting thE abnormal conditions.