Linear ratchet mechanism

Input: beige slider reciprocating along the cross runway.
The pawl block consists of the green pawl base and the red pins.
The green base is the connecting rod of a parallelogram mechanism of two blue rockers.
When the input slider moves forwards, the pawl block pushes the yellow rack and the latter performs a displacement of 3T.
T value depends on the position of the first contact point of the pin with the rack.
Tmax = S*(cot(A)+cot(B))
S: width of the rack
A: acute angle between motion directions of the pin and the rack.
B: acute angle between the motion direction of the rack and its tooth direction.
When the input slider moves backwards, the engagement forces raise the pawl block so the latter can’t transmit the motion to the rack.
The pink pin prevents the pawl block from raising when the input slider moves forwards.
The violet pin keeps the rack immobile during its pause time.
This mechanism is used when the output runway is not in the same direction of the input one.

Inventor files of this video:

[dogwalker]

The right hand pin will wear very quickly and jam, a lifting cam would help a lot.

[zrebbesh]

Oh, cool! This (sort of) solves a design problem I actually HAVE right now! It involves a set of concentric rings, each with a different number of spaces, that must move a different, configurable, number of spaces clockwise when a control lever moves. "Ratchet carriages" of different sizes (different numbers of teeth) can be attached to a single bar moved by the control lever. To reconfigure I can just change the sequence of the ratchet carriages on the bar.

[PimpinNProgress]

Sweetness! You put this out just in time for Mark Ropers Class. Really helped me out here with what I'm trying to do!

[Mtmtmtmtmtmtmtmtmtmtmt]

I really love these videos, always good for getting new ideas :)

Thanks for doing what you do!

[dgb]

Always love your solid works animations

[kundeleczek]

You should get some national or global prize for your work, Master.

[howardbaxter]

Reminds me of the Russian gate lock that the LPL picked recently.

[KangJangkrik]

If i'm a boss, i'm going to hire you as chief engineer

[OurLastStand]

A zip tie is just a linear ratchet. Why redesign the simplicity?

[pzpmm]

It works with any number of pins (displacement per input movement), yes? Does it jam if the input slider reverses while the pins are still in the rack?