@@koshechnii Вы не сможете читать по-японски. Ваш комментарий неестественен.
@koshechnii2 ай бұрын
@@hacolife6412 And you, in the same way, will not be able to read a word in the Ossetian language. But this will not make you dumber than me, because this is not even erudition because you, likewise, are not a Supercomputer) But you have interests! I’ve been reading for a long time and I know a lot about Japan and the Japanese spirit. There was no smell of ignorance there. / И вы точно так же не сможете прочитать ни слова на осетинском языке. Но это не сделает вас глупее меня, ведь это даже и не эрудиция, ведь вы тоже не Суперкомпьютер) Но у вас есть интересы! Я читаю уже давно и знаю много о Японии и японском духе. Невежеством там не пахло.
This film clearly explains the principle of the railroad coupler, it is the best one I have ever seen. Thank you. Please allow me to provide a little more background knowledge.The railroad coupler transmits force primarily through the structure of the knuckle, not the pin. The knuckle is designed to interlock with the adjacent coupler, creating a strong mechanical connection. When a train is in motion, the pulling or pushing forces are distributed through the solid body of the knuckle, which acts as a load-bearing element. The pin on the knuckle serves to secure the knuckle in place, but it is not responsible for transmitting the force. Even if the pin is removed from running train, the coupler can still function because the force is carried by the interlocking surfaces of the knuckles. This design ensures that the tremendous forces experienced during train operations are effectively managed, allowing for safe and efficient movement of railcars. The design of the railroad coupler is a brilliant example of engineering that prioritizes both functionality and safety. It's easy to see how one might initially think that the pin plays a central role in force transmission, but the true genius lies in the structural integrity of the knuckle itself. This design ensures that even if the pin fails, the coupler can still maintain its critical function, preventing potential accidents.
@denden_jp2 ай бұрын
Thank you for praising the video. And thank you for the detailed supplementary explanation. That's great knowledge. I initially assumed that the lock had a claw that the knuckle notch would catch on and lock. But I was wrong. If the claw breaks, it will open. It's not safe. The real thing has a safety mechanism that prevents it from opening even without the knuckle pin, which is great. This state is shown at 3:45 in my video.
@extrascum2 ай бұрын
" Even if the pin is removed from running train"
@LazyKalor2 ай бұрын
@@denden_jp it's chatgtp generated, nothing to thank him for.
Beautifully crafted and demonstrated to show how the pivoting knuckle mechanism, the lock mechanism and the knuckle opening mechanism all come together and function. Just realised that there are actually two knuckles in each piece, one is the external knuckle that we all see and that pulls the train carriage and then there is the other internal knuckle which is pushed out by the pivoting arm (second white plastic vertical pivoting arm) as the key is pulled upwards. This action not only unlocks the knuckle but pivots out the external knuckle arm to unlock the connection to the next carriage. What a nice mechanical device full of intricate knuckles, pivoting arms and pin locks! Thank you.
@denden_jpАй бұрын
Thank you for the explanation. I also think it's great that each part has multiple roles. For example, the lock not only locks the knuckle but also absorbs the pulling force of the knuckle.
Такаой простенький механизм, зато облегчил жизнь железнодорожникам. Спасибо конструкторам и автору видео.😊
@denden_jp2 ай бұрын
@@andrejshamin1452 Спасибо за ваш комментарий. Существуют различные типы муфт, все из которых способствуют безопасности и эффективности работы железнодорожников. Я также хотел бы поблагодарить прошлых дизайнеров.
That was a great demonstration, the best of all. Most videos only show one automatic coupling unit, but this video shows two. Also, it shows the inner working.
@denden_jp2 ай бұрын
@@tatianaes3354 Thank you for the compliment. I'm not used to making videos, so it's a bit rough, but I'm glad that it got the main points across.
Nicely done example of an AAR type D knuckle coupler. How it works and the overall construction are excellent. AAR later went to the Type E and later, to the Type F an Tightlock improvements. Great job for the scale railroad operations.
@denden_jp2 ай бұрын
@@rrsteamer Thank you for your comment. I don't know the difference between Types E, F, and H because I haven't studied it enough, but in Japan, some passenger trains use the equivalent of Tightlock Type H for comfort.
@rrsteamer2 ай бұрын
You’re very much welcome. Have been following of late, cab rides (Ikesan 14) along many of the Japanese commuter rail lines and am greatly impressed by the high maintenance of the track structure (especially over the turn-outs), stations and other parts of the physical plant. If I had one observation is the right-of-ways are beginning to get overgrown with foliage. Oh yes, followed one of the steam locomotive historical operations and noted the well done operation and mechanical inspection of the locomotive after or prior to performing duty. Again, the well maintained track surface was evident by the lack of ‘bouncing around’ of locomotive and tender during operation at speed. Keep up the nice work!
Thank you for this. Pennsy Corp in the United States makes a 3D coupler model. I used it as a training aid and found it fun to take it apart and watch seasoned railroaders fumble putting it back together.
@denden_jpАй бұрын
@@maestromecanico597 I felt like it was a puzzle, one that would be hard for someone without any prior knowledge to put together.
@maestromecanico597Ай бұрын
@@denden_jp I would keep my model on my desk and sometimes come back and find it all disassembled from someone trying to figure it out. That’s what it’s there for.
Автосцепка Джаннея требует подготовки перед сцеплением, иначе сцеп невозможен. Русская сцепка СА-3 лишена этого недостатка. И не требует лишних действий. И на разрыв выдерживает больший вес.
@Володимир_40472 ай бұрын
Ну не руська а радянська. Точніше англійська, як завжди вкрадена. А так, да СА-3 значно краща.
@superhoy2 ай бұрын
@@Володимир_4047 опять ты пришел повонять в комментах))) русские существенно переработали английскую автосцепку и сотворили своё чудо инженерной мысли)
@Володимир_40472 ай бұрын
@@superhoy кацап це найпідліша істота, зовні схожа на людину.
@Володимир_40472 ай бұрын
@@superhoyмосковит це найпідліша істота, зовні схожа на людину. І є найбільший вор і брехун.
@LeonidLampika2 ай бұрын
На разрыв Джанея прочнее.
@ed91212 ай бұрын
The ingenuity of people is so often amazing. I've been an engineer for a while and I still get a thrill learning about and seeing such devices.
@denden_jp2 ай бұрын
@@ed9121 It's simple, yet fascinating and impressive to see how well it works.
La complejidad de la simpleza , cosas de genios increíbles 👌
@JustPeasant2 ай бұрын
Great demonstration video of the AAR, "knucle", Janney (among various other names) coupling work principle. That being said, I always shake my head in disbelief from buffer and chain type coupling that is extensively used by European countries. The lousiest method on the globe.Something that came out of 18th century. Person HAS TO stand between oncoming rolling stock (between buffer and a hook), being very careful from being crushed. Then, flipping the chain over the hook and tightening it manually (spanner), after which the technician CAN attach the cables and air hoses. Prepositions... Even the Soviets made (after WWII) their own variation on the North American design.
@denden_jp2 ай бұрын
Thank you for the compliment. It seems that the buffer hook system is still in use, but it is dangerous for workers and makes them nervous to watch. I hope that one day it will be improved. I heard that the couplers used by Russia were invented by a British person, developed by Germany, and improved by the former Soviet Union.
@rrsteamer2 ай бұрын
Yes, but the hook and link were designed to work with buffers that reduced slack action between cars to a minimum or none. American operation needed the slack to allow starting of long trains when steam locomotives were the primary motive power. This became unnecessary when diesel and electric operation came into play. Regardless of the motive power, slack action is still a problem that must be dealt with on longer trains depending on the physical characteristics of the railroad.
Mechanicel work par excelence for that time - simple and yet very smart thinking behind
@AttilioG2 ай бұрын
Os Engenheiros que projetaram estão de parabéns. Obrigado pela impressão em 3D com suas demonstrações.
@denden_jp2 ай бұрын
Obrigado por assistir. Embora possa parecer uma combinação de partes muito simples, cumpre uma função complexa. Tal como acontece com outros tipos de acopladores, respeito a pessoa que teve esta ideia.
@echomande43952 ай бұрын
A good explanation of how the AAR type coupler works. Maybe you could take a look at and make models of the Scharfenberg coupler (Schaku).
@denden_jp2 ай бұрын
Thank you for watching. The Scharfenberg coupler is a close-coupled coupler. Information about the internal structure is available online, and the movement is two-dimensional, so it was easy to understand how it works. It's an interesting structure.
It took me a moment but thats a what we in the US call a Janny coupler or knuckle coupler. Patented in 1873 they revolutionize train coupling as you didn't need two guys to couple train cars.
@denden_jp2 ай бұрын
@@zomfragger Thank you for your correct explanation. It was originally invented in the United States over 150 years ago. It seems to be classified as the Alliance type of the Janny type coupler. It brought peace of mind to workers.
@traincrazymotiveАй бұрын
also known as the knuckle/buckeye coupler. Very well done, those models are very accurate!
As someone who isn't entirely fluent in Japanese, the subtitles are greatly appreciated.
@denden_jp2 ай бұрын
@@sirizalot Thank you for your comment. I used Google's translation function. Let's thank Google and blame Google for the translation error. I would like to continue adding translations in subtitles as much as possible in the future.😀
Very nice, wish I had that kind of skill, but to old to cut the mustard. Thanks
@denden_jp2 ай бұрын
Thank you. I am increasingly unable to fight aging, but the technology to assist me is also increasing. There may be a technology that we can use.
@CRQ5508Ай бұрын
At 1:10 in the video, you ask what the holes are for. The holes are actually a result of removing material to reduce the weight of the coupler head, which already weighs over a thousand pounds with the coupler shank, without compromising the structure of the coupler. Coupler heads themselves are not solid steel, but largely hollow inside to reduce weight yet still have a tinsel strength rating of nearly one-million pounds. Beyond that, I would like to extend my praise to your fabulous model. It’s beautifully designed and crafted.
@denden_jpАй бұрын
@@CRQ5508 Thank you for your praise! I understand that it is a rational design to satisfy the function of the coupler and reduce weight. I think that going uphill is a big load, so I'm surprised it hasn't broken yet.
The algorithm brings interesting results. 😊 Nice work on the models and the video. ❤
@denden_jp2 ай бұрын
@@MerrimanDevonshire I'm glad that you are as interested in couplers as I am! The Shibata type was improved for Japan, but its origins lie in the Alliance type, so I think it has roughly the same structure as automatic couplers overseas.
@MerrimanDevonshire2 ай бұрын
@@denden_jp Electromotive Diesel (EMD) Locomotives was a past client of mine, so it was interesting to see the use of 3D printing to help explain key ideas.
@Einherjar_172 ай бұрын
Excelente vídeo!, muchas gracias por su trabajo.
@asteroidrules2 ай бұрын
A well detailed and functional model. These couplers have been a common sight on American railroads for over 100 years, neat to see that they're also used in Japan.
@denden_jp2 ай бұрын
Thank you for watching! It is no exaggeration to say that the coupler is one of the great inventions of America. In Japan, the maximum number of cars connected is 26, but in vast countries such as the United States, there are trains with over 100 cars. Even though locomotives are sometimes used to assist the train before, during, and after the train, it is amazing to have invented a device that can withstand such a huge weight.
@chandramohanpai20822 ай бұрын
Since there are no sideways shock absorbers the gap between the two couplers creates a big bang sound and a push pull sensation while braking and pulling ,enough to wakeup a sound sleeping passenger ,it's just a shortcut for automatic coupling,it's just like towing a accident vehicle with a pipe between , old bogies were more efficient with side shock absorbers