If chain-link cuffs can be snapped, why not upgrade designs?

As perhaps many people here are aware, you can actually bind up the chain on chain-link handcuffs and with a quick forceful movement you can literally snap the swivels off or otherwise bend the handcuff body which forces he swivel out. This has been documented by lock pickers, magicians, even imprisoned convicts have demonstrated it on film, I guess for special privileges or better treatment or something.

Since this is the case, what are handcuff manufacturers doing about it? They cannot just switch to hinged because they are too restrictive for many circumstances. People don't get handcuffed to a police officer when being escorted to court using hinged handcuffs for example, or for people in prison who are already under control. They use hinged to at least give the prisoner some degree of movement or comfort of getting their hands into the best position for them.

So, the flexibility option is still a requirement I think. I just think companies should be doing more to prevent this binding and snapping technique. I know the Spanish company Alcyon have come up with a swivel-single-hinge system that they call the universal joint. It (never bought one yet so I can only use my imagination based on pictures) allows the person to twist their hands in opposite directions due to the standard location and style of swivel as chained but the single hinge means the person can pivot their hands forward and back. Maybe not 100% flexibility of chain but still they should be able to work it around to get their hands into a comfortable position. Have any of the other big name companies made any chances, upgrades in the design of their chain link handcuffs to stop people out-right snapping them to free their hands from each other?

Single or 3-link chain handcuffs are not vulnerable to this issue. Why major handcuffs manufacturer still use 2-link chain I do not know

As perhaps many people here are aware, you can actually bind up the chain on chain-link handcuffs and with a quick forceful movement you can literally snap the swivels off or otherwise bend the handcuff body which forces he swivel out. This has been documented by lock pickers, magicians, even imprisoned convicts have demonstrated it on film, I guess for special privileges or better treatment or something.

Since this is the case, what are handcuff manufacturers doing about it? They cannot just switch to hinged because they are too restrictive for many circumstances. People don't get handcuffed to a police officer when being escorted to court using hinged handcuffs for example, or for people in prison who are already under control. They use hinged to at least give the prisoner some degree of movement or comfort of getting their hands into the best position for them.

So, the flexibility option is still a requirement I think. I just think companies should be doing more to prevent this binding and snapping technique. I know the Spanish company Alcyon have come up with a swivel-single-hinge system that they call the universal joint. It (never bought one yet so I can only use my imagination based on pictures) allows the person to twist their hands in opposite directions due to the standard location and style of swivel as chained but the single hinge means the person can pivot their hands forward and back. Maybe not 100% flexibility of chain but still they should be able to work it around to get their hands into a comfortable position. Have any of the other big name companies made any chances, upgrades in the design of their chain link handcuffs to stop people out-right snapping them to free their hands from each other?

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British ob been using solid cuffs for years now and must be fine as they still use them so i would say if these are ok then hinge cuffs should have more than enough room to move about. Being chained to a officer i would imagen would be hard to bind the chain without them noticing. When they have both hands in they could of course but then again even if they could not cuffs can be picked easily enough anyway so i guess its the case of when in cuffs they should be supervised and many companies now make solid or hinge cuffs so i guess they are doing something ots just down the the force/officer to go with what they decide is adequate.

As perhaps many people here are aware, you can actually bind up the chain on chain-link handcuffs and with a quick forceful movement you can literally snap the swivels off or otherwise bend the handcuff body which forces he swivel out. This has been documented by lock pickers, magicians, even imprisoned convicts have demonstrated it on film, I guess for special privileges or better treatment or something.

Since this is the case, what are handcuff manufacturers doing about it? They cannot just switch to hinged because they are too restrictive for many circumstances. People don't get handcuffed to a police officer when being escorted to court using hinged handcuffs for example, or for people in prison who are already under control. They use hinged to at least give the prisoner some degree of movement or comfort of getting their hands into the best position for them.

So, the flexibility option is still a requirement I think. I just think companies should be doing more to prevent this binding and snapping technique. I know the Spanish company Alcyon have come up with a swivel-single-hinge system that they call the universal joint. It (never bought one yet so I can only use my imagination based on pictures) allows the person to twist their hands in opposite directions due to the standard location and style of swivel as chained but the single hinge means the person can pivot their hands forward and back. Maybe not 100% flexibility of chain but still they should be able to work it around to get their hands into a comfortable position. Have any of the other big name companies made any chances, upgrades in the design of their chain link handcuffs to stop people out-right snapping them to free their hands from each other?

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I would think that making the chain links circular instead of oval wouldfix the problem cheaply.

As perhaps many people here are aware, you can actually bind up the chain on chain-link handcuffs and with a quick forceful movement you can literally snap the swivels off or otherwise bend the handcuff body which forces he swivel out. This has been documented by lock pickers, magicians, even imprisoned convicts have demonstrated it on film, I guess for special privileges or better treatment or something.

Since this is the case, what are handcuff manufacturers doing about it? They cannot just switch to hinged because they are too restrictive for many circumstances. People don't get handcuffed to a police officer when being escorted to court using hinged handcuffs for example, or for people in prison who are already under control. They use hinged to at least give the prisoner some degree of movement or comfort of getting their hands into the best position for them.

So, the flexibility option is still a requirement I think. I just think companies should be doing more to prevent this binding and snapping technique. I know the Spanish company Alcyon have come up with a swivel-single-hinge system that they call the universal joint. It (never bought one yet so I can only use my imagination based on pictures) allows the person to twist their hands in opposite directions due to the standard location and style of swivel as chained but the single hinge means the person can pivot their hands forward and back. Maybe not 100% flexibility of chain but still they should be able to work it around to get their hands into a comfortable position. Have any of the other big name companies made any chances, upgrades in the design of their chain link handcuffs to stop people out-right snapping them to free their hands from each other?

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Already made on some french cuffs or Hiatts cuffs.

Here comparison of links between GK (left) and Rivolier (right) cuffs :



And here an exemple of CTS cuff with rounded links.

http://www.handcuffwarehouse.com/himo90ovha.html

As perhaps many people here are aware, you can actually bind up the chain on chain-link handcuffs and with a quick forceful movement you can literally snap the swivels off or otherwise bend the handcuff body which forces he swivel out. This has been documented by lock pickers, magicians, even imprisoned convicts have demonstrated it on film, I guess for special privileges or better treatment or something.

Since this is the case, what are handcuff manufacturers doing about it? They cannot just switch to hinged because they are too restrictive for many circumstances. People don't get handcuffed to a police officer when being escorted to court using hinged handcuffs for example, or for people in prison who are already under control. They use hinged to at least give the prisoner some degree of movement or comfort of getting their hands into the best position for them.

So, the flexibility option is still a requirement I think. I just think companies should be doing more to prevent this binding and snapping technique. I know the Spanish company Alcyon have come up with a swivel-single-hinge system that they call the universal joint. It (never bought one yet so I can only use my imagination based on pictures) allows the person to twist their hands in opposite directions due to the standard location and style of swivel as chained but the single hinge means the person can pivot their hands forward and back. Maybe not 100% flexibility of chain but still they should be able to work it around to get their hands into a comfortable position. Have any of the other big name companies made any chances, upgrades in the design of their chain link handcuffs to stop people out-right snapping them to free their hands from each other?

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Anonimus, are you sure that 3 chain (or more links) and 1 link handcuffs can't be snapped by using this technique?

I have one pair of handcuffs with 3 chain links (typical oval shape) as well as the single chained Ralk SNB and I'm almost sure that they can be ripped this way. I can bind the chain easily but I didn't want to destroy them. I have a plan to make some test on the cheap Chinese/Taiwanese cuffs after making chain links modifications - from the standard 2 oval links to 1 oval link, 3 oval links, 2 circular links.

Also, it's quite interesting to find that the hinge Peerless handcuffs are also vulnerable - at least when you are handcuffed to some solid attachment:

https://www.youtube.com/watch?v=F_TtCe0TORs

As perhaps many people here are aware, you can actually bind up the chain on chain-link handcuffs and with a quick forceful movement you can literally snap the swivels off or otherwise bend the handcuff body which forces he swivel out. This has been documented by lock pickers, magicians, even imprisoned convicts have demonstrated it on film, I guess for special privileges or better treatment or something.

Since this is the case, what are handcuff manufacturers doing about it? They cannot just switch to hinged because they are too restrictive for many circumstances. People don't get handcuffed to a police officer when being escorted to court using hinged handcuffs for example, or for people in prison who are already under control. They use hinged to at least give the prisoner some degree of movement or comfort of getting their hands into the best position for them.

So, the flexibility option is still a requirement I think. I just think companies should be doing more to prevent this binding and snapping technique. I know the Spanish company Alcyon have come up with a swivel-single-hinge system that they call the universal joint. It (never bought one yet so I can only use my imagination based on pictures) allows the person to twist their hands in opposite directions due to the standard location and style of swivel as chained but the single hinge means the person can pivot their hands forward and back. Maybe not 100% flexibility of chain but still they should be able to work it around to get their hands into a comfortable position. Have any of the other big name companies made any chances, upgrades in the design of their chain link handcuffs to stop people out-right snapping them to free their hands from each other?

Click to expand...

To Parabellum.
It seems that only two-chain link can be dedlocked in the way that both cuffs become "rigid". In this position swivel may be crackes by bending force.
http://www.network54.com/Forum/261154/m ... s+that+can't+be+cracked+by+binding+the+chain+links