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Throttle grip apparatus

  • US 8,567,282 B2
  • Filed: 05/27/2010
  • Issued: 10/29/2013
  • Est. Priority Date: 06/05/2009
  • Status: Active Grant
First Claim
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1. A throttle grip apparatus comprising:

  • a throttle grip rotatably mounted on a leading end of a vehicle handlebar;

    a magnet which is integrally rotatable with the throttle grip;

    a detector that detects variations of a magnetic field of the magnet in a non-contact manner and also detects a rotation angle of the throttle grip according to a value of the detected variation of the magnetic field; and

    a frictional device configured to generate a frictional resistance force during a rotation of the throttle grip and generate a rotation load of the throttle grip,wherein the frictional device is configured to vary the resistance force based on the rotation angle of the throttle grip, and wherein the frictional device includes;

    a rotation side frictional portion integrally rotatable with the throttle grip; and

    a fixed side frictional portion fixed to the handlebar and disposed in contact with the rotation side frictional portion, andwherein a friction coefficient of a specific portion of a contact surface of the rotation side frictional portion or the fixed side frictional portion is made different from a friction coefficient of the contact surface which does not include said specific portion, to thereby be able to vary the frictional resistance force of the frictional device according to the rotation angle of the throttle grip,wherein the rotation side frictional portion is pressed against the fixed side frictional portion as the throttle grip is rotated such that a frictional resistance force is generated to generate the rotation load of the throttle grip,wherein the rotation load of the throttle grip during the rotation of the throttle grip can be varied based on a demand of a user,wherein a mechanical feedback is created by a mechanical contact between the specific portion of the contract surface of at least one of the rotation side frictional portion and the fixed side frictional portion being pressed against another of the at least one of the rotation side frictional portion and the fixed side frictional portion, andwherein the mechanical feedback is sensed by the user.

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