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:
Jul. 06, 2004
Filed:
Dec. 17, 2002
Akio Handa, Saitama, JP;
Hiroaki Tomita, Saitama, JP;
Shinji Goto, Saitama, JP;
Akio Senda, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A two-wheel-drive/four-wheel-drive switching system for a vehicle wherein noise is reduced and a state of drive can be securely indicated. A two-wheel-drive/four-wheel-drive switching system for a vehicle is provided with a switching unit provided to either of power transmission mechanisms connecting an engine and front wheels, and the engine and rear wheels via final reduction gear units for enabling or disabling the transmission of power in the power transmission mechanism. An indication control member is provided for detecting that the transmission of power is made in the power transmission mechanism and illuminates an indicator wherein the indication control means detects a phase difference in revolutions between a pair of final reduction gear units and illuminates or turns off the indicator when the phase difference is in a predetermined range.