Abstract: An engine control apparatus includes: the switch case 1; the stop switch body 6; the stop switch knob 3; the lock plate 5; the transponder 9; and the control section 11 for controlling the engine operation of the small motorboat based on the ID code from the transponder. The engine stop apparatus is comprised such that, when the lock plate 5 is disengaged from the stop switch knob 3, the stop switch body 6 is activated to allow the engine to stop or to be in an idling state. In the control section 11, the antenna 12 that can receive the ID code transmitted from the transponder 9 is integrally formed with the communication circuit or the authentication circuit 14 for the ID code and these are provided in the switch case 1.

Abstract: A throttle position detecting apparatus has an interlocking member being rotatable in conjunction with a throttle grip attached to a tip of a handlebar of a vehicle; a detecting unit for detecting a rotation angle of the interlocking member; and a case integrally including a first accommodation and a second accommodation, the interlocking member being rotatably accommodated in the first accommodation and the detecting unit being accommodated in the second accommodation, wherein the throttle position detecting apparatus detects a throttle position on the basis of the rotation angle of the interlocking member detected by the detecting unit.

Abstract: A throttle-opening detecting apparatus has a case mounted on a handle bar of a vehicle, a throttle grip mounted on a leading end side of the handle bar from the case so as to be rotatable with respect to the handle bar, a detect member incorporated in the case and rotatable in linking with the throttle grip, a throttle-opening sensor for detecting the rotation angle of the detect member, and a rotative direction changing unit for rotating the detect member in a direction substantially perpendicular to the rotative direction of the throttle grip, so as to provide a throttle-opening detecting apparatus which can decrease the thickness-direction dimension of the case to thereby reduce the size of the throttle-opening detecting apparatus.

Abstract: A throttle-opening detecting apparatus has a case mounted on a handle bar of a vehicle, a throttle grip mounted on a leading end side of the handle bar so as to be rotatable with respect to the handle bar, a throttle-opening sensor incorporated in the case for detecting a rotation angle of the throttle grip and, a friction plate applying a frictional force in an opposite direction with respect to the rotation of the throttle grip to the throttle grip while the throttle grip is rotated so as to provide a throttle-opening detecting apparatus which not only can omit the throttle wire but also can obtain the rotation load of the throttle grip similar to the conventional throttle-opening detecting apparatus to thereby permit execution of the operation of the throttle grip without giving the driver a strange feeling.

Abstract: A throttle position detecting apparatus has an interlocking member being rotatable in conjunction with a throttle grip attached to a tip of a handlebar of a vehicle; a detecting unit for detecting a rotation angle of the interlocking member; and a case integrally including a first accommodation and a second accommodation, the interlocking member being rotatably accommodated in the first accommodation and the detecting unit being accommodated in the second accommodation, wherein the throttle position detecting apparatus detects a throttle position on the basis of the rotation angle of the interlocking member detected by the detecting unit.

Abstract: An engine control apparatus includes: a stop switch body 6; a stop switch knob 3; a lock plate 5; a transponder 9 that is provided at the lock plate side and that can transmit a predetermined ID code; and a control section 11 that can receive the ID code transmitted from the transponder 9 and that controls based on the ID code the engine operation of the small motorboat. The engine control apparatus is structured such that, when the lock plate 5 is disengaged from the stop switch knob 3, the stop switch body 6 is activated to allow the engine to stop or to be in an idling state. The engine control apparatus also includes the writing section 16 for writing a regular ID code of a transponder to another transponder.

Abstract: A throttle-opening sensor has a detect shaft rotatable about an axis in conjunction with a throttle grip, a pair of rotation terminals respectively disposed on different positions in the same circle with the rotation axis, the pair of rotation terminals being rotatable together with the detect shaft, contact pieces disposed on each of the rotation terminals at predetermined intervals in a rotation-radius direction of the rotation terminal, a printed circuit including conducting pattern portions printed along sliding loci of the contact pieces and, a resistance portion printed in a sliding range of the contact piece of the conducting pattern portion, and generating a resistance against a current flowing in the conducting pattern portion, wherein at least two detection signals variable in mutually opposite directions according to the rotation angles of the throttle grip are generated due to that the contact pieces respectively allow the conducting pattern portions to conduct therebetween.

Abstract: The engine control apparatus includes: the stop switch body 6; the stop switch knob 3; the lock plate 5 insertable to the stop switch knob 3; the transponder 9 that is provided at the lock plate 5 side and that can transmit an ID code; and the control section 11 for receiving the ID code transmitted from the transponder 9 to control the engine operation. The engine control apparatus includes such that, when the lock plate 5 is disengaged from the stop switch knob 3, the stop switch body 6 is activated to cause the engine to stop or to be in an idling state. In the engine control apparatus, the control section 11 changes the engine performance based on the ID code from the transponder 9.

Abstract: The engine control apparatus includes: the stop switch body 6; the stop switch knob 3 that allows the engine to stop or to be in an idling state; the lock plate 5; the transponder 9 that can transmit a predetermined ID code; and the control section 11 that receives the ID code transmitted from the transponder 9 and that controls the engine operation based on the ID code; wherein the engine control apparatus is constituted such that, when the lock plate 5 is disengaged from the stop switch knob 3, the stop switch body 6 is activated to allow the engine to stop or to be in an idling state; and the attachment 10 incorporating the transponder 9 is provided separately from the lock plate 5 and is detachably attached to the lock plate 5.

Abstract: A throttle grip apparatus has a throttle grip rotatably mounted on the leading end of a handlebar of a vehicle; a case disposed on the handlebar at a position being adjacent to the throttle grip; a throttle opening angle sensor for detecting the rotation angle of the throttle grip and disposed in the case, an energizing unit for energizing the throttle grip in a direction to return to the initial position thereof, an engine of a vehicle being controlled in accordance with the detected value of the throttle opening angle sensor wherein the energizing unit includes a spiral spring mounted on the base end side of the throttle grip and having one end fixed to the base end portion of the throttle grip and the other end fixed to the case and the spiral spring is wound up as the throttle grip is rotated from the initial state thereof.

Abstract: A transmission apparatus of an all-terrain vehicle includes: a non-stage transmission; a forward and backward movement switching device capable of switching to a forward movement position, a neutral position, or a backward movement position; and a shift operation device of rotary type for switching forward and backward movement disposed on a handle bar at a position adjacent to a handle grip. The shift operation device includes a rotary member for a shift operation and a locking mechanism for locking the rotary member so as not to move toward at least a position for backward movement from a position for neutral. The locking mechanism is configured to be handled by a hand griping the handle grip to make the locking mechanism unlocked.

Abstract: A throttle lever device mounted in the vicinity of a grip at one end of a handlebar of a water jet bike or a snowmobile. The throttle lever device has an operation lever 3 with a front end portion that is movable vertically relative to a bracket 1. The operation lever 3 actuates a throttle cable 6 by virtue of gripping operations.