+ Altering linear motions

+ Altering rotary oscillations

+ Complicated motions

+ Continuous rotation into interrupted rotation

+ Continuous rotation into linear motion

+ Continuous rotation into rotary oscillation

+ Continuous rotation transmission

+ Jigs and fixtures

+ Mechanisms for drawing lines

+ Mechanisms of specific purposes

+ Reciprocating motion to continuous rotation

+ Rotary oscillation into linear motion

+ Rotation to wobbing motion

+ Simple cam mechanisms (RU)

+ Study of mechanisms

+ Sundries

Shifting gear mechanism 1b


Input: the green shaft to which 3 gears (green and cyan) are fixed.
Output: the blue shaft on which a block of 3 gears (red, yellow and orange) can slide (key sliding joint).
Turn the pink lever to get 3 positions of the gear block corresponding 3 speeds of the output. There is a positioning device (spring ball) in the pink crank. To avoid gear collision the speed change must be carried out when the input shaft stops. The operation shown in this video is for the case of very slow speed.

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