STEERING DAMPER DEVICE

• Main Authors: HASEGAWA YOSUKE, ITABASHI TAKEYASU, WAKABAYASHI TAKESHI, FUMITANI OSAMU, HAYASHI KANJI
• Format: Patent
• Language: English
• Published: 15.10.2002
• Edition: 7
• Subjects: BLASTING; CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; SHOCK-ABSORBERS; SPRINGS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To realize control precluded from the possibility that a front wheel load gets difficult to be detected, or structure for the detection gets complicated, affected by a temperature change, when the front wheel load is detected to control damping force of a steering damper because a kickback is easily to be generated with getting light of the front wheel load. SOLUTION: The rotary type steering damper 10 is provided coaxially to a steering shaft, and the damping force is switched to be generated or brought into zero by a variable valve 38 provided in a by-path 37 for connecting a right liquid chamber 34 to a left liquid chamber 35. The switching is controlled by a controller 40, and the controller 40 allows generation of the damping force in the steering damper 10 only when acceleration detected by an acceleration sensor 41 exceeds a threshold value. Generation variation in an acceleration by a vehicle speed is corrected when it is used as a weighting condition for the control that the vehicle speed detected by a body speed sensor 42 exceeds a threshold value.