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Демка BR руёье

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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 15 Οκτ 2018, 01:07

Maybe this will be easier to read.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 15 Οκτ 2018, 06:06

What crippled these guns in Australia was zero marketing effort (from memory "Skindiving/Sportdiving in Australia" had but one half page advert with a polka dot bikini clad model holding a "Demka BR" gun) and no spare parts availability as the importer, "Indent Wholesale Sports Company", simply placed the guns with a random bunch of Sports and Fishing Tackle shops and with no selection of gun sizes in any particular shop. Thus each store, which I only found out by accident, had only the one "Demka BR" gun size on offer. Hence one shop may have had 100 cm guns, then another in a completely different location may have had 90 cm guns. Thus with no one knowing anything much about them, e.g. one guy in a sports store complained that there was no hand pump in the clear plastic gun packaging(!!), you can see why the guns were not a big success. I never got around to disassembling a rubber pipe to see how they were made as at one stage I contemplated making my own replacement bands.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό miker » 15 Οκτ 2018, 10:07

the last photo are use and maintenance instructions !
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 16 Οκτ 2018, 01:25

miker έγραψε:the last photo are use and maintenance instructions !

I thought they were, but I could never translate them. It just occurred to me that the Greek instructions are for the “Demka BR”, however a closer look at the English instructions shows that they are for a “Demka AR” series gun which as far as I know was never sold here. This earlier version of the “Demka” gun would have had a side slotted barrel to let water out if the patent drawings are accurate.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό miker » 16 Οκτ 2018, 09:52

i've never see or notice any AR version! I thing they never make another version!
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 18 Οκτ 2018, 00:53

The English language instructions clearly state “Model A”, plus there is no power adjustment sleeve depicted on the outer barrel, but the earlier guns may have been produced for a very short time and never reached the shops in any volumes. Take the situation in Australia in 1985 when the “Demka BR” guns were first being distributed here you rarely saw them anywhere, yet that was their biggest year here and guns were rarely seen in 1986, however I purchased my BR60 gun on the very last day of 1986 as I had looked at it for months every time I visited the shop (the Dandenong Sports Store only ever had two examples) and never saw one again for many years.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 19 Οκτ 2018, 02:19

A December 1984 announcement by the importer for the new “Demka BR” spearguns.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 19 Οκτ 2018, 06:48

Another notice in the same magazine showing the range of Demka gun sizes to be imported initially. This tells me that the very first “Demka BR” gun that I ever saw must have been from a later shipment as all the guns in that shop were BR100 models.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 22 Οκτ 2018, 05:26

Close-up view of the power selector plastic sleeves with instructions printed directly on the yellow plastic originally then changing to a printed sticker in the later guns.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 26 Οκτ 2018, 07:02

The later version of the “Demka BR” has a different trigger mechanism based on this Demka patent (see attached diagram). A cam lock, two-piece trigger mechanism replaces the previous tilting sear lever also used in pneumatic spearguns so that the mechanism is more secure against accidental discharge and wear effects that can occur with the “see-saw” type or “rocker” sear lever if they are not continually lubricated. Of course inside a pneumatic speargun this type of “rocker” sear lever is always covered in oil and never exposed to the environment which contains sand and other contaminants, but in the “Demka BR” gun it is and possibly foreseeing future problems in this regard the trigger mechanism was changed to one usually found in band guns. Note to make room for the new trigger mechanism the red safety slide switch had to be repositioned on the grip, formerly it was in front of the trigger then it moved to behind the trigger.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 29 Οκτ 2018, 03:36

Which was the last year of production for the “Demka BR” series spearguns? I remember seeing on-line advertisements in Greece for the rubber pipes many years after the guns were available here, but they may have been NOS (new old stock). A problem here was a lack of product support as spare parts such as spears were not available, only new guns in clear plastic bags, if you could find them. An object lesson for anyone placing a new gun on the market that has unique parts.
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Re: Демка BR руёье

Νέα δημοσίευσηαπό miker » 29 Οκτ 2018, 11:09

I don't know for sure but i guess late 80's early 90's
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 30 Οκτ 2018, 00:44

Just searching on “Demka” I found these references. Some “Demka” parts are still available for normal band guns and the other “Deeper Blue” forum thread indicates that “Demka” gun of some type were being sold in 2003. There is also mention of “Demka” band guns being sold under the brand name “Spetton” in different national markets.
http://subandcast.com/product/rubber-demka-vector-17-5/
http://www.spearfishingworld.com/δεμκα
https://www.diveshop.gr/index.php/catal ... re=default
Discussion on “Demka” guns in general circa 2003.
https://forums.deeperblue.com/threads/a ... uns.39297/
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Re: Демка BR руёье

Νέα δημοσίευσηαπό miker » 30 Οκτ 2018, 00:54

The demka brand stopped their commercial activities a few years ago. Only what is left in stock is sold now
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Re: Демка BR руёье

Νέα δημοσίευσηαπό popgun pete » 30 Οκτ 2018, 01:23

Possibly the injection moulds or dies for the “Demka BR” plastic components are still around somewhere as it is unlikely that they have been scrapped, although they may be laying forgotten in some store room. I always liked the rear grip handle on these guns and the finned line slide was another point of difference. I should point out that the large hole in the rear of the grip handle was to allow water to flow into the interior of the gun as the spear and rubber pipe rapidly moved forwards during the shot.

A “Demka” catalogue is still available on-line here (2008).
https://vdocuments.site/demka-56e40a1469a86.html
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