JP2902490B2 - Motorcycle motorcycle throttle opening sensor mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a motorcycle,
The present invention relates to a mounting structure of a throttle opening sensor incorporated in a throttle grip.

[0002]

2. Description of the Related Art In a motorcycle, a throttle opening sensor is used as a signal for controlling an ignition timing of an engine or controlling an exhaust valve. For example, as shown in FIG. 4, an exhaust valve 33 is provided at an outlet of an exhaust port 32 of a two-cycle engine 31, and signals from an engine speed sensor 34 and a throttle opening sensor 36 are sent to an electronic control unit 37.
And outputs the signal to the servo motor 38 to rotate the exhaust valve 33, thereby changing the exhaust port area, that is, the exhaust timing, to obtain the acceleration performance and the required torque in the entire rotation range of the engine. It has been known. Conventionally, the throttle opening sensor 36 has
It is attached to the outside of the throttle grip 35, and detects the rotation angle of the throttle grip 35.

[0003]

However, in the system in which the throttle opening sensor is attached to the outside of the throttle grip, there is a problem that the throttle opening sensor protrudes outward, so that the right and left widths are widened, which causes inconvenience. Since the throttle wire needs to pass through the throttle grip sensor, there is a problem that the throttle wire becomes long.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a motorcycle throttle opening sensor mounting structure that can be mounted compactly in a throttle grip.

[0005]

For this purpose, a motorcycle throttle opening sensor mounting structure according to the present invention comprises a grip mounting body 12 rotatably supported by a handlebar 7 and one side of the grip mounting body 12. Cases 1 and 2 fixed to handlebar 7 so as to cover, drive pulley 13 and drive gear 14 built in one side of grip mounting body 12 and fixed to drive pulley 13 It is characterized by comprising a throttle wire 11, a detection gear 21 supported by a case and meshed with the drive gear 14, and a throttle opening sensor 9 connected to the detection gear 21.

Note that the numbers added to the above configuration are for comparison with the drawings, and do not limit the configuration of the present invention at all.

[0007]

In the present invention, for example, as shown in FIG.
Rotate the grip mounting body 12 to rotate the throttle wire 11
Is operated, the throttle opening is transmitted from the drive gear 14 to the detection gear 21 as the rotation angle of the drive pulley 13, and the rotation angle is detected by the throttle opening sensor 9 which is a potentiometer.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1, 2 and 3 show one embodiment of a motorcycle throttle opening sensor mounting structure according to the present invention. FIG. 1 is a view taken along the line BB in FIG. 2 is a sectional view taken along the line CC of FIG. 3 as viewed from the direction of the arrow, and FIG. 3 is a sectional view taken along the line AA of FIG. 2 as viewed from the direction of the arrow.

In FIG. 1, fixing bosses 3 and 4 are formed on a split upper case 1 and a lower case 2, and can be attached to a handlebar 7 by bolts 5 and 6. An opening 8 is formed in the lower case 2, a throttle opening sensor 9 is inserted into the opening 8, and is fixed to the lower case 2 by a bolt 10.

As shown in FIGS. 2 and 3, a grip mount 12 to which a throttle grip is mounted is rotatably supported on the handle bar 7, and a throttle wire 11 is provided on one side of the grip mount 12. A drive pulley section 13 for operation and a drive gear 14 on the opposite side of the drive pulley section 13 are formed and housed in the cases 1 and 2.
A locking groove 15 is formed on the outer periphery of the driving pulley 13, and a locking pin 16 to which the tip of the throttle wire 11 is fixed is fitted in the locking groove 15.

An outer tube 18 is attached to a lower portion of the lower case 2 via a connecting member 17, and the throttle wire 11 extends from above the handlebar 7 of the motorcycle to a lower front side and is connected to a carburetor (not shown). . In FIG. 2, the X position is the position when the throttle is fully opened, and the Y position is
The position is the position when the throttle is fully closed.

A pivot shaft 20 is fixed to the lower case 2 by a screw 19, and a detection gear 21 is rotatably supported by the pivot shaft 20, and is meshed with the drive gear 14 to form a detection gear. Reference numeral 21 is connected to the throttle opening sensor 9. When the grip wire 12 is rotated and the throttle wire 11 is operated, the throttle opening is adjusted to the drive pulley 1.
The rotation angle of 3 is transmitted from the drive gear 14 to the detection gear 21 and the rotation angle is detected by the throttle opening sensor 9 as a potentiometer.

[0013]

As described above, according to the present invention, a grip mounting member rotatably supported on a handlebar,
A case fixed to the handlebar so as to cover one side of the grip mounting body, a drive pulley portion and a driving gear built in the case and formed on one side of the grip mounting body, and the drive pulley portion. With a configuration including a locked throttle wire, a detection gear supported by the case and meshed with the drive gear, and a throttle opening sensor connected to the detection gear, the throttle opening is provided in the throttle grip. The degree sensor can be mounted compactly.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a throttle opening sensor for a motorcycle according to the present invention, viewed from the direction of arrows along the line BB in FIG.

FIG. 2 is a sectional view taken along the line CC in FIG.

FIG. 3 is a sectional view taken along the line AA in FIG. 2 and viewed from the direction of the arrow;

FIG. 4 is a diagram illustrating an example of use of a conventional throttle opening sensor.

[Explanation of symbols]

1, 2, case, 3, 4, fixing boss, 5, 6 bolt, 7 handlebar, 8 opening, 9 throttle opening sensor, 10 bolt, 11 throttle wire, 1
2 ... Grip mounting body, 13 ... Drive pulley part, 14 ... Drive gear, 15 ... Lock groove, 16 ... Lock pin, 17 ... Connector,
18 ... outer tube, 19 ... screw, 20 ... pivot,
21 ... Detection gear.

Claims (1)

(57) [Claims] 1. A grip mounting body rotatably supported by a handle bar, a case fixed to the handle bar so as to cover one side of the grip mounting body, and the grip mounting body built in the case. A drive pulley and a drive gear formed on one side of the drive gear, a throttle wire locked to the drive pulley, a detection gear supported by the case and meshed with the drive gear, and the detection gear And a throttle opening sensor connected to the throttle opening sensor.