JP3111572B2 - Kick starter for scooter type vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kick starter for a scooter type vehicle.

[0002]

2. Description of the Related Art In a scooter type vehicle, as shown in FIG. 5, an engine unit 2 as a power unit is connected to a frame 1 of a vehicle body by a shaft 3 so as to swing vertically.
A rear wheel 4 is supported at a rear portion of the engine unit 2 and is supported on a vehicle body by a cushion unit 5, and an operation mechanism (V belt) in the engine unit 2 is provided.
In some cases, the rotation of the engine 6 is transmitted to the rear wheel 4 through the transmission.

In such a scooter-type vehicle, a kick lever 7 for starting is provided on the outer surface of the engine unit 2, and the engine 6 is started by kicking the kick lever 7.

The kick lever 7 is located inside the center stand 8 provided on the vehicle body during traveling as shown in FIG. 6 so that the kick lever 7 cannot be kicked. Lever 7
Is turned around the turning shaft 7a as shown in FIG. 7 to be positioned outside and set to the kick operation position. A kick start position is formed below the kick operation position. The kick operation range near 90 ° from the start position is kicked and rotated, and the rotation of the kick shaft 9 is transmitted to the crankshaft of the engine 6. And start it.

The kick shaft 9 of the conventional kick lever 7 is indicated by a two-dot chain line in FIG. 1, and as shown in FIG. 7, a mission drive for driving the rear wheel 4 and the axis of the crank shaft 10 in the engine unit 2 is shown. It is located on a line 12 connecting the axis of the shaft 11.

[0006]

SUMMARY OF THE INVENTION A conventional kick lever 7
In FIG. 1, the kick start position A is formed below the kick operation position A 'as shown in FIG. For this reason, the kick lever 7 has a small kick operating angle θ (see FIG. 1) from the kick start position A to the kick end position B at which kick can be performed, and a small rotation angle at which the drive gear and the driven gear mesh with each other. I couldn't give enough rotation for starting and it was hard to start. In particular, if the kickstand 7 is provided with a safety device for preventing the kick lever 7 from being moved to the operable position when the center stand 8 is lowered, the upper end position of the center stand 8 must be adjusted as shown in FIG. There is a problem in that the center stand 8 must be extended by the height H indicated by the broken line, and this causes a problem that the center stand 8 becomes unnecessarily large and heavy.

The present invention has been made in consideration of the above-described circumstances, and allows a large kick operating angle without changing the structure, thereby making it easy to start the vehicle. It is an object of the present invention to provide a kick starter for a scooter-type vehicle that can have a function of a safety device.

[0008]

In order to achieve the above object, a kick starter for a scooter type vehicle according to the present invention includes a swing type engine unit, and a stand is provided at a lower front side of the engine unit in a standing position, a storage position, and a lower position. A kick lever is provided via a joint portion on a kick shaft protruding outward from the engine unit case while being rotatably supported between the engine unit case. The kick lever is provided between the storage position inside the vehicle and the outside of the vehicle. In a scooter-type vehicle provided so as to be rotatable about a rotation axis of a joint portion between a kick operation position and a kick shaft, a center line of the kick shaft connects a transmission drive transmission shaft to an engine crankshaft and a rear wheel. The kick lever is stored in a storage state in which the kick lever is tilted rearward and upward in the storage position, and is located in the storage position of the kick lever. The upper end of the stand that takes the storage position engages with the kick lever from the outside to restrict the rotation of the kick lever to the kick operation position, while allowing the kick lever to be started when the stand is raised. .

[0009]

[Function] The starting position of the kick lever is set to a high position, and the kick operating angle to the kick ending position is increased.
The engagement angle between the driving gear and the driven gear at the time of kicking increases, and the engine can be easily started. Also, when the safety device is constituted by the center stand, it is not necessary to extend the upper end of the center stand long.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a kick starter for a scooter type vehicle according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a storage position of a kick lever 13 mounted on a swing type engine unit 2 as a power unit according to the present invention.
Reference numeral 3 is provided on a kick shaft 14 protruding outward from the engine unit case 2a via a joint 13b.
The kick lever 13 is a rotating shaft 13c of the joint 13b.
Is rotatable around, provided rotatably between the kick operation position A ₀ in storage position and the vehicle outer side of the vehicle interior shown by the solid line in FIG. 1. The kick shaft 14 of the kick lever 13 is disposed below a line 12 connecting the axis of the crankshaft 10 of the engine 6 and the mission drive shaft 11 for driving the rear wheel 4, and the kick portion 13a at the tip of the kick lever 13 is Similarly, the kick lever 13 is located at the upper position of the engine unit case 2a, so that the kick lever 13 is stored at the storage position in a storage state inclined upward and rearward.

[0012] After the kick lever 13 which is brought located at the accommodated position kick operation position A ₀ is rotated to the rotation shaft 13c around the joint portion 13b from (see the solid line in FIG. 1), the required to kick start position A ₁ It has a play for the angle. Kick operating angle theta ₁ from kick start position A ₁ to the kick end position B can take more than 90 °. When the kick lever 13 assumes the storage position, it is guarded at the upper end of the center stand 8 and can constitute a safety device. In a state where the center stand 8 is stored (retracted state), the upper end of the center stand 8 is
3 is engaged from the outside of the vehicle to function as a stopper, so that kick kicking of the kick lever 13 cannot be performed. The center stand 8 is pivotally supported on the lower front side of the engine unit 2 so as to be rotatable between a storage position indicated by a solid line in FIG. 1 and an upright position where the stand is upright.

A drive gear 15 in the form of a sector is fixed to the kick shaft 14 as shown in FIG. 2, and the drive gear 15 is meshable with a driven gear 16 of the crank shaft 10 so that the drive gear 15 is driven at the start of the kick. The crankshaft 10 is rotated until the kick is completed while meshing with the gear 16.

A transmission belt 19 is stretched between a drive pulley 17 on the crankshaft 10 and a driven pulley 18 on the transmission drive shaft 11 to form a V-belt transmission mechanism 20 as a power transmission mechanism. The V-belt speed change mechanism 20 transmits a rotational driving force from the driven pulley 18 to the mission drive shaft 11 via a centrifugal clutch mechanism (not shown).
The rotation is transmitted to the rear wheel 4 through the transmission. This transmission belt 1
9 is displaced from the state of X shown in FIG. 2 to the state of Y according to the speed change operation (expansion and contraction of the diameter) of the pulleys 17 and 18, but at the intermediate point, an intersecting (immobile) position Z which is not displaced in any state. Exists.

FIG. 3 shows a recess 23 on the lower surface of the engine unit case 2a at the position Z where the transmission belt 19 is not displaced.
Is formed, the center stand 8 enters the recess 23 to increase the amount of rotation upward, and has a function as a safety device for the kick lever 13 without extending the upper end of the center stand 8. . According to this, the center stand 8 can be achieved without increasing the size of the center stand 8 as a safety device for the kick lever 13 by the center stand 8,
Helps reduce weight.

Therefore, as shown in FIG.
Was positioned in the kick operation position A ₀ is pivoted to the rotary shaft 13c around the joint portion 13b, the kick operation position A
₀ when it is rotated kick shaft 14 around is positioned kick starting start position A ₁ from become the starting start position A ₁ and the elevated position, the drive gear 15 driven gear 16 by kicking up the kick end position B Mesh with crankshaft 1
Thus, the engine 6 can be started by largely rotating 0. Kick operating angle theta ₁ at this time the kick lever 13 is turned in the center angle 90 ° or more, can be easily start the engine 6 also increases the rotational angle of the crankshaft 10. Also,
When the center stand 8 is provided with a concave portion 23 on the lower surface of the engine unit case 2a, the central stand 8 is rotated upward by the concave portion 23, so that the kick lever 13 can function as a safety device without extending the upper end thereof. .

Further, the kick starter shown in FIG. 1 and the kick starter shown in FIG.
By combining the engine unit case 2a shown in (1) and (2), the kick operating angle of the kick lever can be increased without increasing the length of the ground contact portion of the center stand 8, and the engine startability is improved and the weight is reduced. be able to.

[0018]

As described above, according to the present invention, the kick operating angle of the kick lever can be increased by lowering the kick shaft downward without changing the structure, so that the engine can be easily started. Thus, the engine startability can be improved.

Further, when the center stand is stored, the kick lever is covered from the outside of the kick lever with the upper end of the stand to restrict the rotation of the kick lever to the start operable position, so that the start operation can be performed only when the stand is standing up. In addition, a safety device that regulates the rotation of the kick lever by the center stand itself can be provided. Also, when the safety device is configured by the center stand, the kick angle can be increased without lengthening the center stand, and the weight of the center stand can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention in comparison with the prior art.

FIG. 2 is a front view showing the inside of the engine unit.

FIG. 3 is a front view showing a second embodiment of the present invention.

FIG. 4 is a skeleton diagram of the invention of FIG. 1;

FIG. 5 is a side view showing a scooter type vehicle to which the present invention is applied.

FIG. 6 is a perspective view showing a kick lever safety device.

FIG. 7 is a skeleton diagram showing a defect of a conventional safety device.

FIG. 8 is an explanatory view of a conventional safety device.

[Explanation of symbols]

 2 Engine Unit 4 Rear Wheel 6 Engine 7 Kick Lever 8 Center Stand 9 Kick Shaft 10 Crank Shaft 11 Drive Shaft 13 Kick Lever 14 Kick Shaft 15 Drive Gear 16 Driven Gear 19 Belt 23 Recess

Claims (1)

(57) [Claims] 1. A swing type engine unit, wherein a stand is rotatably supported between a standing position and a storage position at a lower front side of the engine unit, and protrudes outward from the engine unit case. A kick lever is provided on a kick shaft via a joint portion, and the kick lever is provided so as to be rotatable around a rotation axis of the joint portion between a storage position inside the vehicle and a kick operation position outside the vehicle. In the vehicle, the center of the kick shaft is disposed below a line connecting an engine crankshaft and a transmission drive shaft for transmitting rotation to a rear wheel, and the kick lever is stored in a storage state in which the kick lever is tilted rearward and upward in a storage position. The upper end of the stand which takes the storage position in the storage position of the kick lever is engaged with the kick lever from the outside, and While regulating the Tsu rotation of the click operation position, the kick starting apparatus of a scooter type vehicle, characterized in that the starting operably configured kick lever when the stand upright.