Gravity version of an OTF Switchblade?

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Tom19176
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Re: Gravity version of an OTF Switchblade?

Postby Tom19176 » Mon Jan 01, 2018 10:10 pm

Panzer what does the tang stamp say? That one makes me think Spain......

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Panzerfaust
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Re: Gravity version of an OTF Switchblade?

Postby Panzerfaust » Tue Jan 02, 2018 1:38 pm

Tom19176 wrote:Panzer what does the tang stamp say? That one makes me think Spain......


Rostfrei and Made Italy.

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ILikeStilettos
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Re: Gravity version of an OTF Switchblade?

Postby ILikeStilettos » Tue Jan 02, 2018 7:46 pm

Dave_Syn wrote:I'm new to knives so forgive my lacking descriptions. Other than the switchblades I want, I also want to get a Gravity knife or two.

I'm not saying I want one exactly like that, it's just the only example I could find where there is both a switchblade and gravity version. I don't care about color or minor design differences or anything. As long as it's a gravity version of a standard switchblade, I'm sold.

Where can I get one of these?

OK, let me take a slightly different approach to answering your request. First off, I am an engineer and knife designer as well as a collector, so I think about knives not only from the aesthetic, but also mechanical perspective. The short answer about why you can't find the gravity knife is that they are all but non-resistant, and the reason they didn't get produced is extreme design difficulty.

It can be done, but It's not easy, and to get a matching pair like you describe pretty much means they have to be designed and built to your specifications. The issue is the push bottom operation from some point along the side of the scale.

If you will look at Gravknife's third picture, the all metal Bonsa, those I believe can be had in both gravity and single action OTF. They will be mostly vintage and I suspect won't have the look you want.

Most of the subsequent pictures are what is commonly called a "trapdoor" knife, a switchblade, and generally in the $500+ range. Most OTF switches are double action and the firing method is via a slide rather than a button. Single actions use a button, but must include some type of external cocking mechanism and a sear hole near the point plus another at the ricasso. The blade must move in a track. Regardless of powered or gravity, the blades are always more narrow and shorter than the handle. Now the button has to operate dual rockers. There are many nice gravity knives out of Germany, but they typically have a kind of top button, not a round push button.

Sorry for the long reply, but you are going to have to think how you want to do this and how much you are willing to spend.
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Tom19176
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Joined: Mon Apr 21, 2008 12:23 am

Re: Gravity version of an OTF Switchblade?

Postby Tom19176 » Wed Jan 03, 2018 10:17 am

Ok Thanks! The shape of it reminded me of the OTFs I saw in Spain in the 1970s!


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