EP1405025A1 - Pneumatic speargun with conic barrel - Google Patents
Pneumatic speargun with conic barrelInfo
- Publication number
- EP1405025A1 EP1405025A1 EP02708933A EP02708933A EP1405025A1 EP 1405025 A1 EP1405025 A1 EP 1405025A1 EP 02708933 A EP02708933 A EP 02708933A EP 02708933 A EP02708933 A EP 02708933A EP 1405025 A1 EP1405025 A1 EP 1405025A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spear
- speargun
- pneumatic
- string
- depend
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/80—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
- F41B11/83—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes for launching harpoons
Definitions
- Subject of the invention is a pneumatic speargun with conic barrel, adapted piston with adapted special designed spear, an ellipse gliding ring, stretching device and a system for string storing-holding and releasing.
- Invention enables to spear a fish on longer distances as usual, it enables fast changing of spear in the water and after firing the spear only the necessary length of the string is released, meanwhile the rest of the string remains coiled on the system.
- -pneumatic speargun is not so precise and does not enable to fish on longer distances, which are benefits of elastic speargun.
- pneumatic speargun with conic barrel solves the problem of precise spearfishing on long and also short distances, easier stretching and moving of the speargun in the water, additionally it enables fast spear-change under the water and while firing the spear only the necessary part of the connection string is uncoiled, meanwhile the rest of the string remains stored on the system for string storing-holding and releasing.
- the invention will be described on executed example and figures, which show g.1 a pneumatic speargun, a spear, an ellipse gliding ring, system for string holding and releasing depend on invention in side view and partial longitudinal section
- Fig.2 a piston and a piston support
- Pneumatic speargun with conic barrel consists of speargun with conic barrel 1, adapted piston 3 with trigger support 6, an adapted spear 11 with blockade mechanism 15,16 and sidelong groove 12 before conic back 13, an ellipse gliding ring 14 with string connection 23, stretching device for slim spear 25 and a system for string storing, holding and releasing 18-22.
- Pneumatic speargun with conic barrel 1 solves the problem how to achieve spear higher outlet velocity needed for greater range (longer distance spearfishing). This is achieved by changing the barrel 2 construction, that is from barrel constant cylindrical inside diameter to conic one, accelerating inside diameter in the direction exit of the speargun. Choosing suitable cone, rising of transversal section-cut is faster than falling of pressure. The result is rising push force, which means also better accelerating with the consequence of higher spear velocity.
- By existent pneumatic spearguns push force falls because of the falling pressure by constant barrel inside diameter (while piston travels from the trigger place 5 to the exit the volume rises, consecutive pressure falls). For different diameter of spears an interchangeable exit guidance 24 can be executed.
- a piston 3 solves the problem of simultaneous adaptation to the conic inside barrel diameter. It is executed in a way, that it has axis prolonged gasket 7 and instead of O-ri ⁇ g also another gasket 8 positioned in the opposite or in the same direction as gasket 7. Piston also has an additional distance ring 9 and conic bore 10 adapted to the conic back 13 of the spear -(Fig.2). While piston-travelling, gaskets 7 and 8 with distance ring 9 are adapting to the conic inside of the barrel pushing the spear to the exit. Conic piston bore 10 together with conic back 13 of the spear are forming firm connection between the piston and the spear, which are together with exit guidance 24 needed for an exact guiding by stretching and firing the spear.
- a spear 11 solves the problem how to achieve as minimum water resistance as possible. Beside being as slim as possible (outside diameter of the spear as little as possible, bigger weight needed for greater spear range is reached by bigger spear-length) nothing on the spear extends out of the outside diameter of the spear, that are stuck system with sidelong groove 12 and ellipse guiding ring 14, blockade system 15,16. The spear has also conic back. By existent spears so blockade system as the connection between the string and the spear are extending out of the outside diameter of the spear, rising the transfer section of the spear and so the resistance.
- the blockade system 15,16 at the spearhead 17 solves the problem how to prevent the fish to escape from the spear after being speared, without geometric extending out of the outside diameter of the spear in closed situation, reducing the water resistance of the spear (Fig.1 and 4).
- Special construction enables, that the blockade 15 and the blockade su ⁇ port(16) can turn around and along the axis on the nan-owed part of the spear, enables the blockade 15 its opening/closing function.
- the spearhead 17 together with the blockade system 15,16 are disassembleable (Fig.4). By existent spears the blockade extends out of the spear and is rotational connected with the spear by pin through transversal bore of the spear.
- a gliding ring 14 together with sidelong groove 12 solves the problem of the connection between the string 23 and the spear without being extend out of the outside diameter of the spear after the spear has been fired.
- Gliding ring 14 is an ellipse flexible spring-wire embrace, whose form is adapted to the geometric form of the groove 12. On both sides it ends with a snare, one side instead of snare it can be only thick-headed 14a, where the string is fastened. The string goes after through a snare 14b to a fixed coil 19 on the speargun(Fig. ).
- Gliding ring glides while firing the spear from the middle to the back of the spear until it jumps into the groove 12 and with inside part 14c of the snare 14b stucks behind the edge of the groove 12a. Side-pushing the snare 14b and lifting it at the same time unstucks firm connection.
- gliding ring is fixed and of bigger diameter than spear (pneumatic speargun) or the string is directly connected to the back of the spear (elastic speargun). In both cases the connection extends out of the outside diameter of the spear.
- Stretching device for slim spear 25 solves the problem how to stretch pneumatic speargun with slim spear. It is executed in a way, that a bore 26 for a spearhead 1 is separated from the handle 27, connected together with flexible or firm bands or U/V profile - (Fig.3). While stretching, the bore 26 embraces the spearhead 17, handle 27 with a bore 29 gives the spear additional support preventing larger curving, enabling in this way slim spear overcoming the same stretch- force as shorter spears.
- a system for string holding, storing and releasing 18,19,20,22 solves the problem of releasing only the necessary part of the string (that is between the speargun and the place where the spear stops), while the rest of the string remains coiled on the system.
- the system enables also faster coiling and prevents entangling of the string on the system. It consists of the rotating 18 and firm 19 coil with slots 20 and spring pin 22.
- the connection string 23 is coiled between rotating
- the trigger 4 turns the coil 18 through flexible connection 21 for an angle, which is necessary, that the opening of the slot 20 stands in the direction of the firm coil and let the necessary length of the string to roll off.
- the spring turns the rotating coil back in the basis position.
- connection string 23 should be coiled between firm 19 and rotating coil 18.
- the string is fixed on the firm coil, coiling first in the slot 20 of the rotating coil and after alternately between firm and rotating coil as usual. The last remaining turn should be coiled-hooked on the spring pin 22. Stretching the speargun should follow until the piston is hooked behind the cork 5, opposite placed trigger support 6 enables an exact piston&spear travel-begin. In this situation the speargun is prepared for spearfishing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Earth Drilling (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200100085A SI20890A (en) | 2001-03-29 | 2001-03-29 | Pneumatic speargun with conical pressure tube |
SI200100085 | 2001-03-29 | ||
PCT/SI2002/000012 WO2002079711A1 (en) | 2001-03-29 | 2002-03-29 | Pneumatic speargun with conic barrel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1405025A1 true EP1405025A1 (en) | 2004-04-07 |
EP1405025B1 EP1405025B1 (en) | 2008-01-23 |
Family
ID=20432862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02708933A Expired - Lifetime EP1405025B1 (en) | 2001-03-29 | 2002-03-29 | Pneumatic speargun with conic barrel |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1405025B1 (en) |
AT (1) | ATE384927T1 (en) |
DE (1) | DE60224801D1 (en) |
SI (1) | SI20890A (en) |
WO (1) | WO2002079711A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7537001B2 (en) * | 2005-04-07 | 2009-05-26 | Buzz Bee Toys, Inc. | Toy gun for launching an elongated dart and a method of using pressurized air to launch an elongated dart from a toy gun |
ITGE20130044A1 (en) * | 2013-04-24 | 2014-10-25 | Giovanni Garofalo | PNEUMATIC RIFLE FOR UNDERWATER FISHING AND LOADING METHOD AND SHOOTING OF THE RIFLE |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES242528A1 (en) * | 1958-06-18 | 1958-12-01 | Vilarrubis Sague Sa | Improvements in the manufacture of pneumatic spearguns. (Machine-translation by Google Translate, not legally binding) |
FR1276824A (en) * | 1960-10-13 | 1961-11-24 | Compressed gas underwater gun valve | |
US3102525A (en) * | 1960-11-07 | 1963-09-03 | Clifton L Englis | Underwater missile and activating means therefor |
BG44891A1 (en) * | 1987-07-07 | 1989-03-15 | Kostadin G Terziev | |
EP0826133A1 (en) * | 1995-06-06 | 1998-03-04 | Jury B. Kozlovtzev | Pneumatic harpoon gun for underwater hunting |
-
2001
- 2001-03-29 SI SI200100085A patent/SI20890A/en not_active IP Right Cessation
-
2002
- 2002-03-29 WO PCT/SI2002/000012 patent/WO2002079711A1/en active IP Right Grant
- 2002-03-29 DE DE60224801T patent/DE60224801D1/en not_active Expired - Lifetime
- 2002-03-29 AT AT02708933T patent/ATE384927T1/en not_active IP Right Cessation
- 2002-03-29 EP EP02708933A patent/EP1405025B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO02079711A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002079711A1 (en) | 2002-10-10 |
EP1405025B1 (en) | 2008-01-23 |
SI20890A (en) | 2002-10-31 |
DE60224801D1 (en) | 2008-03-13 |
ATE384927T1 (en) | 2008-02-15 |
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