The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1980
Filed:
Mar. 02, 1978
Nobuyuki Kisami, Yokohama, JP;
Kabushiki Kaisha Komatsu Seisakusho, Tokyo, JP;
Abstract
A control device for controlling accelerator and brake switches is designed to prolong life of the accelerator and brake switches as well as life of electromagnetic contactors for the accelerator and brakes which are energized and deenergized by these switches. According to the invention, once the accelerator switch has been turned on by depression of an accelerator pedal, the ON state of the accelerator switch is maintained unless a brake pedal is subsequently depressed. Similarly, once the brake switch has been turned on by depression of the brake pedal, the ON state of the brake switch is maintained unless the accelerator pedal is subsequently depressed. To this end, the control device comprises changeover valves respectively actuated by the accelerator and brake pedals, bistable means for performing a mechanical bistable operation by means of air supplied through the changeover valves and accelerator and brake switches actuated in correspondence to two positions of the bistable means.