JP2513998Y2 - Kick starter for motorcycles - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a kick starter for a motorcycle,
In particular, it relates to a kick starter having a safety device.

[Conventional technology]

Among motorcycles that transmit the driving force of the engine to the rear wheels via, for example, a continuously variable transmission of the motorcycle, the kick start type is the one after the engine starts when the throttle opening is increased at the kick start and the engine is started. Since the number of revolutions increased in an instant, the vehicle body sometimes suddenly started. In order to prevent this unexpected start, the user is strongly instructed to kick start the vehicle with the center stand standing and the rear wheels floating from the ground. However, despite such instruction, many users still start the kick while keeping the center stand flipped up and stored in the vehicle body, that is, with the rear wheels grounded, and a start safety device is required.

There are several starting safety devices. For example, when the rear wheel brake lever is gripped, the kick does not start and the start does not start (JP-A-56-98566). There is a structure in which the kick lever cannot contact the kick start (Japanese Patent Laid-Open No. 58-126461).

[Problems to be solved by the device]

However, of the above-mentioned conventional techniques, the former technique has a complicated structure and requires adjustment during assembly. Moreover, the cost was also high for this reason. Although the latter technique does not allow kick start, the kick lever is stepped on while the center stand is flipped up, the kick lever contacts a part of the center stand, and the contact part is easily scratched and rusted. Was bad.
In some cases, the strong contact may cause the center stand to deform.

The present invention has been made in view of the above problems, has a simple structure, does not require adjustment at the time of assembly, is low in cost, and prevents rust due to contact between the center stand and the kick lever and deformation of the center stand. An object is to obtain a kick starter for a motorcycle that can be prevented.

[Means for solving the problem]

According to the present invention, a starter drive gear fixed to a kick shaft rotated by a kick lever, a driven gear axially slidably mounted on a crankshaft arranged in parallel with the kick shaft, and a driven gear pressed The driven gear is provided with a guide for sliding the driven gear from an engagement position in which it engages with the starter drive gear to an idle position in which it does not engage, and a center stand capable of being in a lifted state. Is provided with a spring for urging the
A shaft is provided between the guide and the center stand, the shaft being pushed up by abutting one end of the center stand in a splashed state, and the other end of the shaft is brought into contact with the guide by pushing up the shaft and the guide. Is a kick starter for a motorcycle, characterized in that an inclined surface for moving the shaft in the axial direction of the crankshaft is formed, and the driven gear slides to the idling position against the biasing force of the spring by the movement of the guide. .

(Operation) According to the present invention, however, the center stand is pushed up so that the center stand contacts one end of the shaft and pushes up the shaft. When the shaft is pushed up, the inclined surface formed at the other end of the shaft moves the guide in the axial direction of the crankshaft, and by this movement of the guide, the driven gear can be moved to the idling position against the biasing force of the spring. .

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. FIG. 4 is a horizontal cross-sectional view of the swing type engine unit of the starter type motorcycle as seen from above.
This unit 10 has an engine 12 and an automatic continuously variable transmission case.
14 and 14 are integrally configured. A center stand 16 in a flipped-up state is present below the unit 10, and a kick shaft 20 rotated by a kick lever 18 projects from the left side surface of the unit 10.

An enlarged view of FIG. 4 is shown in FIG. 1, and a side view of FIG. 1 is shown in FIG. Further, FIG. 3 shows a front view of an enlarged view of an essential part of FIG.

The crankshaft 22 of the engine 12 is horizontally arranged in the left-right direction of the vehicle body, and the kickshaft 20 is arranged in parallel with the crankshaft 22. A coil spring 26 is wound around the kick shaft 20 rotated by the kick lever 18, and urges the kicked kick lever 18 and the kick shaft 24 in a direction to return to the original state.
A substantially fan-shaped starter drive gear 28 is fixed to the kick shaft 20. A driven gear 30 is attached at a position where it can be engaged with the star drive carrier 28. This attachment is performed on the crankshaft 22, and the driven gear 30 is slidable in the axial direction of the crankshaft 22. A spring 32 is wound around the crankshaft 22, and by this spring 32,
The slidable driven gear 30 is urged in the axial direction. The urging direction is the direction of the engagement position where the driven gear 30 is engaged with the starter drive gear 28. As a result, the starter drive gear 28 and the driven gear 30 are engaged with each other when the center stand 16 cannot be flipped up. The spring 32 is a crankshaft.
The driven gear 30 is urged by being present between the stopper 34 fixed on the 22 and the driven gear 30. A guide 36 is attached to the driven gear 30 to press the opposite side of the spring 32. This Guide 36
2, is entirely L-shaped and is formed of reciprocating wire rods. One end of this guide 36 is attached to the driven gear 30, and the attached position is a position opposite to the spring 32 of the driven gear 30. A guide pin 38 passes through the L-shaped corner portion of the guide 36, and guides the guide 36 so that the guide 36 can move in parallel in the axial direction of the crankshaft 22. The other end of the guide 36 can come into contact with the other end of the shaft 40 that transmits the flipped up movement of the center stand 16.

That is, the abutting portion 42 is provided on a part of the center stand 16.
Is formed, and one end of the shaft 40 is abutted and pushed up by the abutting portion 42. shaft
The unit 40 penetrates the unit case 10 via a dust seal 45. A spring 46 is placed around the shaft 40.
Is provided, one end of the spring 46 is engaged with a ring-shaped stopper 48 formed around the shaft 40, and the other end of the spring 44 is a spring seat provided on the case 10 side.
The shaft 40 is urged toward the center stand by being locked to the shaft 50. The shaft 40 is configured to be pushed up by the center stand 16 that is flipped up against the biasing force. An inclined surface 52 is formed at the other end of the shaft 40 as shown in FIG. In addition, make sure that the inclined surface 52 always faces in one direction so that the shaft 40
A notch 54 is formed on the side surface of the non-rotating member, and the detent pin 56 contacts the notch 54. The inclined surface 52 comes into contact with the other end of the guide 36 and moves the guide 36 in parallel with the axial direction of the crankshaft 22.

The operation of this embodiment will be described below. First, a normal kick start is performed with the center stand 16 standing. At this time, the center stand 16 does not push up the shaft 40, and the shaft 50 releases the contact with the guide 36 by the action of the spring 44. Since the guide 36 has no force, it is pushed back in the axial direction of the crankshaft 22 (upward in FIG. 1) by the driven gear 30 pushed by the spring 32. In this state, the driven gear
30 is a starter drive gear due to the urging force of the spring 32.
Engaged with 30. When the kick lever 18 is kicked in the state where the driven gear 30 is in the engagement position as described above, the rotational force of the kick shaft 20 rotated by this kick is transmitted to the driven gear 30 via the starter drive gear 28. The engine is started by rotating the crankshaft 22.

Next, in a state where the center stand 18 is flipped up, the abutting portion 42 of the center stand 18 that is flipped up abuts one end of the shaft 40 and pushes up the shaft 40. The inclined surface 52 at the other end of the shaft 40 that has been pushed up is
The guide 36 is moved by contacting the other end of the. This movement is performed in the axial direction of the crankshaft 22 against the biasing force of the spring 32 of the driven gear 30. Ie guide 36
Presses the driven gear 32 to slide the driven gear 32 from the engagement position to the idling position. In this idling position, the driven gear 32 is not engaged with the starter drive gear 28. When the kick lever 18 is kicked in this state, the turning power of the kick shaft 20 rotated by this kick is transmitted to the starter drive gear 28, but since it is not engaged with the driven gear 32 as described above, the starter drive gear 28 is not engaged. The drive gear 28 idles. As a result, it is possible to prevent the vehicle body from being accidentally started and the vehicle body being suddenly started. At this time, even if the kick lever 18 is strongly kicked, the starter drive gear 28 simply idles, and the related parts are not damaged or broken as in the conventional case.

As described above, according to this embodiment, the shaft 40 that is pushed up by the center stand 16 and the shaft 40
The starting safety device can be obtained by a simple structure of the guide 36 that is moved by and the driven gear 30 that is slid by the guide 36. This device operates, so to speak, by the movement of the center stand 16 being flipped up, and it is not necessary to make delicate adjustments at the time of assembly as in the conventional case. Therefore, the assembly work efficiency can be improved.
Further, since the adjustment is not necessary, the device can be assembled without being influenced by the kick lever attachment position and the kick lever shape which differ depending on the vehicle type. Since the fine parts of the device can be assembled inside the case of the unit or inside the clutch cover, no trouble is required when disassembling and assembling the engine. Further, it becomes less necessary to pay attention to the setting position when setting the kick lever.

[Effect of device]

As described above, according to the kick starter for a motorcycle of the present invention, the guide is moved by the movement of the center stand that is flipped up, the driven gear is pressed, and the idle rotation that does not engage from the engagement position with the starter drive gear is performed. The starting safety device can be obtained by a simple structure of sliding the position. Therefore, no structure is required at the time of assembly, and the cost can be reduced. In addition, since the starter drive gear is in the idling state when the center stand is flipped up, related parts are not damaged or broken unlike the conventional case.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is an enlarged front view of an essential part of FIG. 2, and FIG. FIG. 3 is a plan view showing the entire engine unit in which is provided. 16 …… Center stand, 18 …… Kick lever, 20 ……
Kick shaft, 22 …… crankshaft, 28 …… starter drive gear, 30 …… driven gear, 36 …… guide, 40 …… shaft.

Claims (1)

(57) [Scope of utility model registration request] 1. A starter drive gear fixed to a kick shaft rotated by a kick lever, a driven gear axially slidably mounted on a crankshaft arranged parallel to the kick shaft, and the driven gear. The crankshaft is provided with a guide that slides the driven gear from an engaging position that engages with the starter drive gear to an idle position that does not engage with the starter drive gear, and a center stand that can be in a lifted state. A spring for urging the driven gear to the engaging position is provided, and a shaft for pushing up the center stand in a pushed state by contacting one end with the spring is arranged between the guide and the center stand, and the other end of the shaft is arranged. The shaft is pushed up and the guide comes into contact with the guide in the axial direction of the crankshaft A kick starter for a motorcycle, wherein an inclined surface to be moved is formed, and the driven gear is slid to an idling position against the biasing force of the spring by the movement of the guide.