When the plunger brings the two locking elements behind it, it can't go back, because of a stop at the end of the plunger, prevents the linkage from reversing. Even cooler - I believe the mechanism I saw had no linkages - just a series of Sokoban-like moves where the system went from one state to another, but couldn't be reversed without taking ...

2016年1月8日 · Now, I'm thinking it would be better to have a mechanism between the solenoid and the gear, so that a pulse to the solenoid would unlock the gear, and another pulse would lock it. Kind of like the mechanism in a click type pen. What would be a good choice of mechanism to accomplish this, considering how solenoids have a very short stroke distance?

2021年3月5日 · The screw is self-locking when the coefficient of friction $\tan\phi$ is greater than the tangent of the lead angle $\tan\lambda$. In that case, the torque to lower the load $(T_{lower})$ will be either zero (barely moving) or negative ( meaning that either you need to apply torque to keep the screw from moving downwards).

2021年11月5日 · Dinky car seat reclining mechanism aren't going to support 250lbs at 2 feet. Look at machine tools where round shafts are clamped under high forces all the time. You don't see a sliding inner gear lock because it's mechanically complex and gear teeth are fragile.

2015年3月5日 · As you can see, the current design (not our drawing) would have any electromechanical mechanism hanging off of the end of the boat and attached to the rod of the trim tab. Is there anything we can use to turn and then lock the wind vane in place? Preferably something that could be proofed against wind and water.

2022年3月3日 · $\begingroup$ I would make use a 2 link bar mechanism. As the mechanism becomes straight mechanical advantage goes to infinity. Then let it move to overcenter position and block that direction. The same mechanism is being used in landing gears of aircrafts so it does work. $\endgroup$ –

2024年1月31日 · a collet with locking nut. a split ring or collar with a locking bolt. It depends if you need to be remote with a controlled mechanism or you will be doing the locking, but either can be engineered to suit.

I am trying to understand the physical locking mechanism used in bicycle docks, as in the image below, to secure the bike to the dock. I want an in-depth understanding of the mechanism for a design project I am doing on bike sharing systems. I most interested in …

The force might also be applied by a toggle mechanism, which is two linkages that snap into a straight line, producing a very high axial force from a relatively small lateral force. The same force that locks the ball joints could also lock (by friction) the each arm onto the knob's shaft simply because that's where the reaction force to it is.

2016年12月8日 · Locking the central pivot joint: Rotating the handle presses the two halves of the arm together, locking two rings of teeth together (pictured below). I am unsure of the exact mechanism to convert the rotational force from the handle into force pressing the halves together. This model may work differently from the one pictured in the question.