JPS6143546B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a kick arm device that attempts to eliminate restrictions on the kick and the kick storage position caused by the position of the kick shaft.

The conventional kick arm device is formed by connecting a kick crank boss to a kick shaft, and rotatably supporting the kick arm to this boss. This is necessary in order to allow for sufficient rotation. The position of the kick arm is subject to these restrictions, as there must be a leg position that is easy to operate, and there must be a storage location that does not interfere with other operating parts. In other words, if the position of the kick shaft is raised due to reasons such as design or engine structure, the position of the kick arm will be correspondingly higher, making it impossible to place the kick arm in a position where the foot is naturally slightly bent, making it difficult to perform a kick start operation. It can cause difficulties.

This invention was developed based on the above-mentioned circumstances, and its purpose is to provide a kick arm device that can appropriately set the kick starting position and the kick storage position of the kick arm regardless of the position of the kick shaft. There is a particular thing.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a frame on which an engine 2 is mounted, a fuel tank 3 above the engine 2, a seat 4 behind the tank 3, and below the seat 4 a side seat. Cover 5 is attached. Further, the reference numeral 6 indicates the rear wheel. A tip of a kick shaft 7 protrudes from the rear right side surface of the engine 2, and a kick arm device according to an embodiment of the present invention is attached to this tip.

To explain this device in detail below, reference numeral 8 denotes a first crank crank boss, which is provided in spline engagement with the tip of the crank shaft 7, and is used for tightening a tightening tool 9 screwed into one end of the boss. The screw shaft 7 is fixed by a washer 10 and a retaining ring 11 attached to the screw shaft 7.
It is prevented from coming off in the axial direction. A pair of abutting parts 12 and 13 are integrally molded at the other end of the first crank boss 8, and both ends of an arcuate surface formed between these abutting parts 12 and 13 is provided with locking holes 14 and 15. Further, a second hard crank boss 16 is engaged with the other end of the first hard crank boss 8 via a pivot 17, and rotates along the vertical plane between the abutting portions 12 and 13. It is becoming possible to move. Note that 18 is a washer and 19 is a retaining ring, which prevent the pivot 17 from coming off. and,
A steel ball 20 is provided on the surface of the second hard crank boss 16 opposite to the arcuate surface, and this steel ball 20 is constantly pressed by a spring 21 to
4 or 15 automatically. Further, a kick arm 23 is rotatably supported on a shaft portion 22 provided on the second hard crank boss 16, and this arm 23 is prevented from coming off from the shaft portion 22 by a washer 24 and a retaining ring 25. . In addition, the protrusion 23a of this kick arm 23
includes a steel ball 26 and a spring 2 that biases it.
7 is attached, and the steel ball 26 is attached to the kick arm 23.
When it is rotated toward the vehicle body in the storage position, it engages with a locking hole (not shown) provided in the shaft portion 22.

According to the above-described structure, the second crank boss 16 is located in front of the first crank boss 8 in the rotational direction, as shown by the solid line in FIGS. The kick arm 23 is in contact with the contact portion 12, and is tilted forward in the rotational direction with respect to the straight line A-A' passing through the axes of the kick shaft 7 and the pivot 17, so that the kick arm device is approximately form. Therefore, from this state, if you strongly kick the kick arm 23 from top to bottom with your right foot, the kick arm device will rotate counterclockwise while maintaining the above-mentioned posture, and the kick shaft 7 will rotate.
It is possible to start quickly by rotating the
In this case, the torque reaches its maximum at the horizontal line B passing through the axis of the kick shaft 7, and the torque decreases quickly after crossing this, so as mentioned above, the kick arm 23 is tilted forward in the direction of rotation in advance. However, this will not adversely affect the hard start.
When the foot is removed from the kick arm 23 after this tightening, the kick arm device is also rotated back as the kick shaft 7 returns to rotation, but the second kick crank boss 16 is inserted into the locking hole 14 of the steel ball 20. Since the lock arm 23 is temporarily fixed to the first lock crank boss 8 by the engagement of the lock arm 23, the lock arm 23 is prevented from rotating independently about the pivot shaft 17. In addition, in order to store the kick arm 23, operate the kick arm 23 with your foot or the like and rotate it clockwise about the pivot shaft 17 together with the second tighten crank boss 16. When the steel ball 20 is brought into contact with the first hard crank boss 8 and positioned with respect to the first hard crank boss 8, the steel ball 20 engages with the locking hole 15 and the second hard crank boss 16 can be temporarily fixed, and the hard arm 23 is moved toward the vehicle body side by the shaft portion 22. It is rotated around the center and stored in a predetermined position.

As described above, this kick arm device has its kick arm 23 at the kick start movement position.
is a straight line A passing through the axes of the pivot shaft 7 and the pivot shaft 17.
Since the kick arm is tilted forward in the rotational direction with respect to A', it is compared to the conventional kick arm device (indicated by the dashed line A in Fig. 3) in which the kick arm is disposed on the straight line A-A'. Accordingly, the height of this arm 23 is positioned lower than the conventional one by h, corresponding to the amount that the kick arm 23 has fallen down. In other words, since the position of the kick arm 23 can be lowered in this way, even if the kick shaft 7 is raised due to design or engine structure reasons, the kick arm 23 can be placed in a state where the leg is naturally slightly bent when performing a kick start. It can be placed in an appropriate position so that it can be opened from the ground. In addition, in this kick arm device, the kick starting position and the kick storage position are separated by an angle θ set by the abutting portions 12 and 13. The lock storage position can be set so as not to face the cover 5. Therefore, according to this kick arm device, by using the first crank boss 16 in which the positions of the contact portions 12 and 13 are set according to the height of the kick shaft 7 and the arbitrarily selected kick storage position, the proper position can be achieved. It is possible to obtain a suitable kick start position and a preferable kick storage position.

Note that this invention is not limited to the one embodiment described above, and the shapes, structures, arrangements, etc. of the first and second hard crank bosses and the hard arms may be configured in various ways as long as they do not go against the gist of the invention. Of course it can be done.

As explained above, the present invention rotatably supports the first crank boss connected to the kick shaft and the second crank boss supporting the kick arm, and the pair of abutting portions Since the rotation of the second crank crank boss is regulated by the kick start position and the kick storage position, the kick arm can be set at the appropriate kick start position regardless of the position of the kick shaft, and the kick arm can be For example, it has the excellent effect of being able to be set in a tight storage position with appropriate consideration so as not to interfere with the opening and closing of other parts.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a rear side view of the motorcycle, FIG. 2 is an enlarged side view with a part of the middle part in FIG. FIG. 4 is an exploded perspective view. 7... Kick shaft, 8... First Kick crank boss, 12, 13... Contact portion, 16... Second Kick crank boss, 17... Pivot, 22... Shaft portion, 23... Kick arm.

Claims (1)

[Claims] 1. A second kit crank boss, which has a kit arm pivoted thereon, is rotatably supported on a first kit crank boss connected to the kit shaft, and the rotation of the second kit crank boss is set to the kit starting position. A kick arm device characterized in that it is provided with a pair of abutting portions for regulating the kick in a storage position.