Need help with simple spring loaded Pawl design

[JedOs]

Can anyone point me in the right direction of designing a simple spring loaded pawl. The design I am think of allows for bi-rotational spur gear with an external pawl. The pawl is spring loaded to intersect the tooth gap, but a certain amount of torque is needed to overcome the loaded spring and dislodge the spawl, allowing for movement. Thanks

 

[scarecrow55]

It should be possible. The shape would need to be so it lifts clear in one direction and because the teeth are the same shape about the centre the other side of the pawl would need to bottoms and "jam" in the gear root fillet for the other direction.
If you Imagine the tooth space at 12 O'clock the pawl pivot for the pawl wants to be above the O/D and slightly to the left (the way I'm thinking). Then the LH side of the pawl will lift out with CW rotation & it will jam in the bottom in ACW rotation.
Just some thoughts - I haven't drawn anything out.