EP2204633A2 - Griffteil eines Wurfpfeiles - Google Patents

Griffteil eines Wurfpfeiles Download PDF

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Publication number
EP2204633A2
EP2204633A2 EP09160946A EP09160946A EP2204633A2 EP 2204633 A2 EP2204633 A2 EP 2204633A2 EP 09160946 A EP09160946 A EP 09160946A EP 09160946 A EP09160946 A EP 09160946A EP 2204633 A2 EP2204633 A2 EP 2204633A2
Authority
EP
European Patent Office
Prior art keywords
barrel
dart
dart barrel
low hardness
shaped structure
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.)
Withdrawn
Application number
EP09160946A
Other languages
English (en)
French (fr)
Other versions
EP2204633A3 (de
Inventor
Chia-Ching Tsai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2204633A2 publication Critical patent/EP2204633A2/de
Publication of EP2204633A3 publication Critical patent/EP2204633A3/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B6/00—Projectiles or missiles specially adapted for projection without use of explosive or combustible propellant charge, e.g. for blow guns, bows or crossbows, hand-held spring or air guns
    • F42B6/003—Darts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material

Definitions

  • the present invention relates to a dart barrel, and more particularly to a dart barrel which is environment friendly and high safety.
  • Non-competition darts are mostly in the form of a copper rod with two threaded ends which are to be screwed with the dart tip and the dart shaft, respectively.
  • the copper barrels contains too much lead, which doesn't meet the European RoHS (restriction of hazard substances) issued in recent years, so the copper darts are not allowed to be sold to Europe.
  • the problem of containing excessive amount of lead will make children have the risk of chronic metal positioning because they always like to put the dart barrel in their mouths.
  • the copper is less rigid, copper dart is likely to be deformed after being thrown repeatedly, which will further affect the throwing accuracy. Last but not least, the high cost of copper material might also deter consumers from buying.
  • the plastic dart barrel it is a plastic barrel coated on a copper rod, and then the plastic barrel is provided with two threaded ends which are to be screwed with the dart tip and the dart shaft, respectively.
  • the method of covering the copper with plastic can prevent the children from the risk of chronic metal poisoning, however, the plastic barrel is likely to be damaged and cannot be used again after continuous throwing and impacting or falling to the ground.
  • the present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
  • the primary object of the present invention is to provide a dart barrel which meets the RoHS directive.
  • Another object of the present invention is to provide a dart barrel which is environment friendly and low cost.
  • the surface of the barrel is treated with electroplating, blackening or anodizing.
  • the present invention relates to a dart barrel which can be used both on the competition dart and on the non-dangerous electronic dart.
  • a barrel of a dart 1 in accordance with the present invention comprises a body 10 which is made of a low hardness iron rod with a head 12 and an end 14, and on each of the head 12 and end 14 is formed a threaded portion 16 which is a female thread portion (if the tip and shaft of the dart are female threaded, the threaded portions of the barrel of the dart are male).
  • the head 12 of the barrel of the dart is screwed with the tip 20 through the female threaded portion 12, and the end 14 of the barrel of the dart is screwed to the shaft 30 of the flight 40 through the threaded portion 16, thus forming a dart 1.
  • the low hardness iron barrel is coated with a rustproof layer 50 which can be a plating layer, a blackening layer, or an anode layer.
  • a rustproof layer 50 which can be a plating layer, a blackening layer, or an anode layer.
  • Plating or blackening layer can prevent the barrel from oxidization after being exposed to air.
  • the anode layer can also add color to the dart and draw more audiences' attention.
  • the low hardness iron barrel can also take the forms of a wine barrel shaped structure (not shown) whose weight is evenly focused in the center of its body, or a torpedo-shaped structure (not shown) whose weight is distributed in the front portion of its body.
  • the barrel of the dart is additionally provided with plural friction portions (not shown) which can be in the form of grooves or cavities equidistantly or non-equidistantly and annularly distributed in the surface of the barrel, or can take the form of tiny convex portions formed at the finger-gripping portion on the barrel.
  • the friction portions can also be used to determine whether the user is holding the dart in the right place or not.
  • the above barrel is mainly used to apply on a relatively hard metal tip, in addition to that, it can also be modified to cooperate with a relatively soft tip.
  • the body 10 is a low-hardness iron rod with two threaded ends, and a plastic member 60 with a larger length than the body 10 can be directly formed on the surface of the body 10 by injection molding, or the plastic member 60 can be molded first and then mounted on the outer periphery of the body 10 on the condition that the surface of the body 10 is not subjected to an antirust treatment (but antirust is preferably carried out to slow down the dart barrel oxidization).
  • Both ends of the plastic member 60 extend out of both free ends of the body of the barrel and then are processed to form a female threaded portion 62 (or male threaded portion, depends on the design of the tip and the shaft of the dart), the surface of the threaded portion 62 is formed with a friction portion which consists of a plurality of convexes or concaves without being coated with plastic.
  • the barrel is applicable to plastic tip.
  • the present invention is expected to achieve the following effects:

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Toys (AREA)
EP09160946A 2008-12-31 2009-05-22 Griffteil eines Wurfpfeiles Withdrawn EP2204633A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW097223772U TWM358657U (en) 2008-12-31 2008-12-31 Body of dart

Publications (2)

Publication Number Publication Date
EP2204633A2 true EP2204633A2 (de) 2010-07-07
EP2204633A3 EP2204633A3 (de) 2011-03-23

Family

ID=40809806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09160946A Withdrawn EP2204633A3 (de) 2008-12-31 2009-05-22 Griffteil eines Wurfpfeiles

Country Status (3)

Country Link
US (1) US20100167848A1 (de)
EP (1) EP2204633A3 (de)
TW (1) TWM358657U (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD677603S1 (en) * 2011-02-08 2013-03-12 Glenn Andrew Kenn Dart barrel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110172040A1 (en) * 2010-01-11 2011-07-14 Ron Belcik Extension member for arrow
KR101633664B1 (ko) * 2014-07-31 2016-06-27 주식회사 홍인터내셔날 사용자 식별 다트핀
CN107050842A (zh) * 2016-12-05 2017-08-18 扬州多维精工机械厂 一种飞镖的加工工艺
KR101935890B1 (ko) 2017-02-02 2019-01-07 주식회사 홍인터내셔날 멀티미디어 정보를 제공하기 위한 다트 게임 장치 및 컴퓨터 판독 가능 매체에 저장된 컴퓨터 프로그램

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684851A (en) * 1952-10-10 1954-07-27 John C Stokes Practice or tournament plug
US2844363A (en) * 1955-10-04 1958-07-22 Robert C Clark Anticorrosive sealed magnetized stirring bar
CH546582A (de) * 1972-06-05 1974-03-15 Hediger Bruno Wurfpfeil.
US4212464A (en) * 1978-02-15 1980-07-15 Fansteel Inc. Dart body
US4885800A (en) * 1989-05-25 1989-12-05 Ragle Clyde M Transmitter attachment for hunting arrows
US5498004A (en) * 1991-09-30 1996-03-12 Kulite Tungsten Corporation Game dart
US5443272A (en) * 1993-11-22 1995-08-22 Vincent, Sr.; Richard G. Method and apparatus for covering arrow shafts
GB2318302A (en) * 1996-10-12 1998-04-22 Opex Sports Limited Darts
DE19740367C2 (de) * 1997-09-13 1998-12-24 Sunflex Sport Schnellbuegel & Wurfpfeil
US6524201B2 (en) * 1999-01-20 2003-02-25 George E. Fenn Darts: user applied modifiable body and mechanism/s
WO2003024541A1 (en) * 2001-09-14 2003-03-27 Sturtz Joseph F Dart for the game of darts
CN2699954Y (zh) * 2004-05-20 2005-05-18 邵佳沐 一种飞镖器械
US20080090684A1 (en) * 2006-10-12 2008-04-17 Martinez Kelly M Dart

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD677603S1 (en) * 2011-02-08 2013-03-12 Glenn Andrew Kenn Dart barrel

Also Published As

Publication number Publication date
EP2204633A3 (de) 2011-03-23
TWM358657U (en) 2009-06-11
US20100167848A1 (en) 2010-07-01

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