Patent ID: 8302467

Claim:
A throttle opening detection apparatus, comprising: a throttle pipe configured to partly project into a case fixed to a bar handle and configured to support rotation at an end portion of said bar handle; a throttle sensor configured to detect a rotating operation amount of a throttle grip, which is mounted against relative rotation on said throttle pipe, in response to the rotation of said throttle pipe, wherein said throttle sensor is disposed at a fixed position in said case; a resisting force application unit configured to apply a resisting force to the rotating operation of said throttle grip, wherein said resisting force application unit is accommodated in said case, a cancel switch configured to cancel operation of an auto-cruise controlling apparatus, wherein said cancel switch is accommodated in said case together with said throttle sensor and said resisting force application unit, wherein said resisting force application unit further comprises: a flange portion provided on said throttle pipe, and projecting outwardly in a radial direction; a housing disposed in said case, and covering said flange portion and fixed to said case; a sliding member sandwiched between said flange portion and said housing; and a resilient member interposed between said housing and said flange portion, and configured to exert a resilient force to bias said flange portion so as to press said sliding member against said housing.