SU525568A1 - Motorcycle Gearbox - Google Patents

Description

5, In the case 6 of the ratchet device associated with the axis 2, there is a dog 7, which with its protrusions enters the windows of the disk 1, and a spring 8, which sets the dog 7 to its original position.

Spring-loaded stopper 9, placed on the gearbox housing body, getting into the holes of disc 1, ensures fixation of the installed gear.

The return device consists of a spring-loaded coil spring 10 of the slide 11 with a closed longitudinal groove for mounting the slide on the axis 2 and a shank included in the groove of the guide plate 12, which serves to prevent distortions during the longitudinal movement of the slide 11 on the axis 2.

The cylindrical spring 10 at one end rests on the guide bar 12, the other on the protrusions of the slide 11. The latter are located opposite the protrusions of the body 6 of the ratchet. On the switch shaft 13, a driver 14 is rigidly fixed, having a central open groove in which the body 6 of the ratchet device is located. The leash 14 is provided with 6 teeth symmetrically with respect to the groove and the body, which are in a neutral position symmetrically relative to the side of the base 3 of the mechanism 3, and when turning the switching shaft 13 to the maximum angle in either direction, one of the teeth interacts with the side of the mechanism 3, thereby limiting the angle of rotation of the switching shaft 13

The mechanism works as follows.

When the pedal is pressed (not shown in the drawings), the switching shaft 13 rotates together with the driver 14 and turns the ratchet body 6, thereby moving the disk 1 by interacting the protrusions of the pawl 7 with the windows of the rotary disk 1. Simultaneously, the ratchet body 6 is one of of the protrusions acts on the corresponding protrusion of the slider 11, which, moving in the guide bar 12 to slide its own groove

axis 2, compresses the coil spring 10. At the moment of switching on the gear (turning the disc 1 to the maximum angle) and fixing the disc 1 with the stopper 9, the tooth of the driver 14 (see Fig. 3) abuts against the lateral surface of the mechanism 3, limiting further movement of the disc 1 .

When the pedal is removed from the pedal, the coil spring 10 moves the slider 11, which, in turn, returns the ratchet body b, the leash 1.4 and the switching shaft 13 to the initial position.

Claims (1)

Formula invented I A motorcycle gearbox shifting mechanism containing a grooved base, a pedal shifted by a pedal with a driver attached to it, interacting with a spring-loaded ratchet device with a disc mounted on an axle connected to the base of the mechanism and having shifting forks in the slots a base and a disk, and a return device with a spring, characterized in that, in order to increase reliability, simplify installation and operation of the mechanism, the return device is provided with a slider, on the bottom end of which has a closed longitudinal groove in which said disk axis is located, and side projections supported on a ratchet device, and a guide bar with a through groove attached to the base of the mechanism, in which the other end of the slide is movably placed, the spring of the return device is cylindrical and is located between the said protrusions of the slider and the guide bar, and in the switch shaft of the switch shaft there is a central open groove in which the ratchet device is located, and It is provided with teeth symmetrical with respect to the groove, which interact in the extreme positions of the switching shaft with the base of the mechanism. FIG. one 13 0U.Z Type A J4 ten