EP2177862A1 - Spielzeuggewehr-Rückschlagvibrationsstruktur - Google Patents

Spielzeuggewehr-Rückschlagvibrationsstruktur Download PDF

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Publication number
EP2177862A1
EP2177862A1 EP08360037A EP08360037A EP2177862A1 EP 2177862 A1 EP2177862 A1 EP 2177862A1 EP 08360037 A EP08360037 A EP 08360037A EP 08360037 A EP08360037 A EP 08360037A EP 2177862 A1 EP2177862 A1 EP 2177862A1
Authority
EP
European Patent Office
Prior art keywords
piston
weight
rear side
backlash vibration
spring
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
Application number
EP08360037A
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English (en)
French (fr)
Other versions
EP2177862B1 (de
Inventor
Shih Che Hu
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP08360037A priority Critical patent/EP2177862B1/de
Priority to AT08360037T priority patent/ATE492781T1/de
Priority to DE602008004166T priority patent/DE602008004166D1/de
Priority to DK08360037.9T priority patent/DK2177862T3/da
Publication of EP2177862A1 publication Critical patent/EP2177862A1/de
Application granted granted Critical
Publication of EP2177862B1 publication Critical patent/EP2177862B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/64—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot
    • F41B11/642—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated
    • F41B11/644—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated having an additional slidable mass moving in the opposite direction to the piston, e.g. for recoil reduction

Definitions

  • the present invention relates to a toy rifle (air soft rifle/BB-rifle) and more particularly, to a toy riffle backlash vibration structure that allows adjustment of the backlash vibration within a predetermined range from zero to the maximum.
  • Taiwan Patent Publication No. 200708712 discloses a similar design. However, this design is still not satisfactory in function.
  • FIG. 1 illustrates a backlash vibration structure (a') installed in a toy riffle.
  • the backlash vibration structure (a') is arranged at the rear side in axial alignment with the piston (10) in the piston-cylinder mechanism (b'), comprising a receiver extension (20), a weight (30), a reaction spring (40), and a buttcap spacer (50).
  • the receiver extension (20) is connected to the rear side of the lower receiver (c') that accommodates the piston-cylinder mechanism (b').
  • the weight (30) and the reaction spring (40) are mounted inside the receiver extension (20).
  • the reaction spring (40) is connected between the weight (30) and the buttcap spacer (50).
  • the piston (10) has its rear side mounted with a piston spring (101 ).
  • the piston spring (101) has its one end received in the piston (10), and its other end stopped against an inside wall of the lower receiver (c'). Further, a connection rod (60) is movably inserted through the lower receiver (c') and connected between the piston spring (101) and the weight (30).
  • the toy riffle further comprises a transmission mechanism (d'), a trigger (e') and a bullet pusher (f'). When pressed the trigger (e'), the transmission mechanism (d') is forced to move the piston-cylinder mechanism (b'), causing the bullet pusher (f') to push the bullet into the firing position for striking by (the firing pin of) the piston (10).
  • the piston (10) is moved backwards, and the connection rod (60) is moved with the piston (10) to force the weight (30) against the reaction spring (40) (see FIG. 2 ).
  • the reaction spring (40) forces the weight (30) forwards, and the piston (10) is moved forwards in a rush to shoot the bullet (see also FIG. 1 ).
  • a reactive force is produced, causing a backlash vibration.
  • connection rod (60) is connected between the piston spring (101 ) and the weight (30) and has its front end suspending in the piston (10), the inside wall of the piston (10) will strike the front end of the connection rod (60) during backward movement of the piston (10), and the front end of the connection rod (60) will strike the inside wall of the piston (10) during forward movement of the weight (30). Due to the aforesaid problem, the piston (10) wears quickly with use. Further, the buttcap spacer (50) is formed integral with the rear side of the receiver extension (20).
  • the buttcap spacer (50) cannot be opened for enabling the damaged component to be taken out of the receiver extension (20) for a replacement.
  • the pressure of the backlash is determined subject to the weight of the weight (30) and the spring force of the reaction spring (40) and the piston spring (101) .
  • the weight of the weight (30) is fixed, the spring force of the reaction spring (40) and the piston spring (101) will be gradually reducing after a long use.
  • the backlash vibration will become relatively smaller after a long use of the toy riffle.
  • a gun with backlash vibration has a relatively lower firing accuracy than a gun without backlash vibration. This is the reason why conventional toy guns with backlash vibration are not suitable for people who require high firing accuracy. Therefore, an improvement in this regard is necessary.
  • the present invention has been accomplished under the circumstances in view.
  • the backlash vibration structure is installed in a rear side of a frame of a toy riffle in axial alignment with a piston in a piston-cylinder mechanism, comprising a receiver extension affixed to a rear side of the frame, a weight mounted in the receiver extension and axially movable along the receiver extension relative to the frame, a buttcap spacer detachably fastened to a rear side of the receiver extension, and a reaction spring connected between the weight and the buttcap spacer.
  • the buttcap spacer is detachably fastened to a rear side of the receiver extension and mounted with an adjustment rod.
  • the weight comprises a base mounted in and movable along the receiver extension, a front tip coupled to the rear end of the piston spring, and a front extension inserted through the frame of the toy rifle and connected between the base and the front tip and inserted through the frame.
  • the front end of the weigh is directly stopped against the rear end of the piston spring without any other connection means, therefore the invention avoids piston damage and prolongs the service life of the piston.
  • the weight has a relatively greater size and gravity weight when compared to the prior art design, therefore the invention can provide a relatively greater backlash vibration sufficient to compensate for the pressure loss due to the effect of the spring force applied by the piston spring to the weight
  • the buttcap spacer is detachably fastened to the rear side of the receiver extension and mounted with an adjustment rod, which is inserted through the buttcap spacer and rotatable forwards/backwards relative to the buttcap spacer.
  • the adjustment rod can be rotated forwards to stop with a front stop plate thereof against the rear end of the reaction spring.
  • the weight has a rear extension extending axially backwardly from the rear side of the base opposite to the front extension to hold the front end of the reaction spring.
  • the buttcap spacer is detachably fastened to the rear side of the receiver extension and mounted with an adjustment rod, which is inserted through the buttcap spacer and the reaction spring and rotatable forwards/backwards relative to the buttcap spacer to adjust the backlash vibration.
  • the adjustment rod can be rotated forwards to stop with its front end against the rear end of the weight, zeroing the backlash vibration.
  • the weight has a rear extension extending axially backwardly from the rear side of the base opposite to the front extension to hold the front end of the reaction spring.
  • a backlash vibration structure (a) is arranged at the rear side of a toy riffle in axial alignment with a piston (1) in a piston-cylinder mechanism (b).
  • the piston (1) has a piston spring (11) mounted in its rear side.
  • the piston spring (11) has its one end received in the rear side of the piston (1).
  • the toy riffle further comprises a transmission mechanism (d), a trigger (e) and a bullet pusher (f) arranged under the piston-cylinder mechanism (b). When pressed the trigger (e), the transmission mechanism (d) is forced to move the piston-cylinder mechanism (b), causing the bullet pusher (f) to push the bullet into the firing position for striking by (the firing pin of) the piston (1).
  • the backlash vibration structure (a) comprises a receiver extension (2), a weight (3), a reaction spring (4), and a buttcap spacer (5).
  • the receiver extension (2) is connected to the rear side of the frame (c) of the toy riffle that accommodates the piston-cylinder mechanism (b).
  • the weight (3), the reaction spring (4) and the buttcap spacer (5) are mounted in the rear side of the receiver extension (2).
  • the reaction spring (4) is connected between the weight (3) and the buttcap spacer (5).
  • the weight (3) is inserted through the frame (c) with its front end and stopped against the rear end of the piston spring (11) .
  • the weight (3) comprises a cylindrical base (31) , a front tip (33), a front extension (32) axially connected between the cylindrical base (31) and the front tip (33), and a rear extension (34).
  • the cylindrical base (31) is received in the receiver extension (2).
  • the front extension (32) is inserted through the frame (c) of the toy riffle.
  • the front tip (33) is fastened to the rear end of the piston spring (11) opposite to the piston (1) .
  • the rear extension (34) extends axially backwardly from the rear side of the cylindrical base (31) opposite to the front extension (32) to hold the front end of the reaction spring (4).
  • the buttcap spacer (5) is detachably fastened to the rear side of the receiver extension (2) (by, for example, a screw joint; see FIGS. 6 and 7 ).
  • An adjustment rod (6) is inserted through the buttcap spacer (5) and stopped with its front end against the rear end of the reaction spring (4). Further, the adjustment rod (6) has its front end fixedly mounted with a stop plate (61) that is stopped against the rear end of the reaction spring (4).
  • the buttcap spacer (5) can be detachably fastened to the rear side of the receiver extension (2) (by means of, for example, a screw bolt) and, the adjustment rod (6) can be fastened to the buttcap spacer (5) and rotatable to adjust the spring force of the reaction spring (4).
  • the adjustment rod (6) can be rotated forwards and stopped against the rear end of the weight (3) (see FIG. 9 ).
  • the buttcap spacer (5) has a screw hole (51); the adjustment rod (6) has an outer thread (62) threaded into the screw hole (51) and inserted through the reaction spring (4).
  • the transmission mechanism (d) When pressed the trigger (e), the transmission mechanism (d) is forced to move the piston (1) backwards (see FIGS. 4 and 10 ). At this time, the weight (3) is forced backwards by the piston spring (11) to compress the reaction spring (4). When over the compression limit, the reaction spring (4) forces the weight (3) forwards, and the piston (1) is forced forwards by the piston spring (11) to strike the bullet, causing shooting of the bullet (see FIGS. 5 and 11 ). During forward movement of the weight (3), a backlash vibration is produced, simulating a backlash vibration of a real rifle during firing of a bullet.
  • the user can rotate the adjustment rod (6) (see FIGS. 6 and 8 ) forwards to shorten the distance between the front end of the adjustment rod (6) and the weight (3), i.e., to shorten the displacement range of the weight (3), thereby reducing the reaction spring force of the reaction spring (4), and therefore the backlash vibration is relatively reduced.
  • the adjustment rod (6) forwards to shorten the distance between the front end of the adjustment rod (6) and the weight (3), i.e., to shorten the displacement range of the weight (3), thereby reducing the reaction spring force of the reaction spring (4), and therefore the backlash vibration is relatively reduced.
  • the adjustment rod (6) backwards to increase the distance between the front end of the adjustment rod (6) and the weight (3) the displacement range of the weight (3) is relatively increased, and therefore the level of the backlash vibration is relatively increased. Further, as shown in FIG.
  • the backlash vibration structure according to the present invention has the advantages and features as follows:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
EP08360037A 2008-10-16 2008-10-16 Spielzeuggewehr-Rückschlagvibrationsstruktur Not-in-force EP2177862B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08360037A EP2177862B1 (de) 2008-10-16 2008-10-16 Spielzeuggewehr-Rückschlagvibrationsstruktur
AT08360037T ATE492781T1 (de) 2008-10-16 2008-10-16 Spielzeuggewehr-rückschlagvibrationsstruktur
DE602008004166T DE602008004166D1 (de) 2008-10-16 2008-10-16 Spielzeuggewehr-Rückschlagvibrationsstruktur
DK08360037.9T DK2177862T3 (da) 2008-10-16 2008-10-16 Rekylvibrationsstruktur til legetøjsriffel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08360037A EP2177862B1 (de) 2008-10-16 2008-10-16 Spielzeuggewehr-Rückschlagvibrationsstruktur

Publications (2)

Publication Number Publication Date
EP2177862A1 true EP2177862A1 (de) 2010-04-21
EP2177862B1 EP2177862B1 (de) 2010-12-22

Family

ID=40527612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08360037A Not-in-force EP2177862B1 (de) 2008-10-16 2008-10-16 Spielzeuggewehr-Rückschlagvibrationsstruktur

Country Status (4)

Country Link
EP (1) EP2177862B1 (de)
AT (1) ATE492781T1 (de)
DE (1) DE602008004166D1 (de)
DK (1) DK2177862T3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472213A1 (de) * 2010-12-09 2012-07-04 Tsung-Ming Lee Mechanismus zur Übertragung eines Rückwärtsmomentums für Spielzeugwaffe
US8449346B2 (en) 2010-12-07 2013-05-28 Tsung-Ming Lee Backward momentum transferring mechanism for toy gun
JP2013245878A (ja) * 2012-05-25 2013-12-09 chong-ming Li 玩具銃における反動発生装置
EP2503278A3 (de) * 2011-03-21 2014-12-03 Yih Kai Enterprise Co., Ltd Elektrische Spielzeugpistole

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618975B1 (en) * 2002-12-16 2003-09-16 Pao-Tung Shih Paintball gun conveniently assembled
TW200708712A (en) 2005-08-19 2007-03-01 Tokyo Marui Co Ltd Recoil shock device in toy gun
US20080155875A1 (en) * 2006-12-27 2008-07-03 Tatsuo Iwasawa Recoil shock device in toy gun

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618975B1 (en) * 2002-12-16 2003-09-16 Pao-Tung Shih Paintball gun conveniently assembled
TW200708712A (en) 2005-08-19 2007-03-01 Tokyo Marui Co Ltd Recoil shock device in toy gun
US20080155875A1 (en) * 2006-12-27 2008-07-03 Tatsuo Iwasawa Recoil shock device in toy gun

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8449346B2 (en) 2010-12-07 2013-05-28 Tsung-Ming Lee Backward momentum transferring mechanism for toy gun
EP2472213A1 (de) * 2010-12-09 2012-07-04 Tsung-Ming Lee Mechanismus zur Übertragung eines Rückwärtsmomentums für Spielzeugwaffe
EP2503278A3 (de) * 2011-03-21 2014-12-03 Yih Kai Enterprise Co., Ltd Elektrische Spielzeugpistole
JP2013245878A (ja) * 2012-05-25 2013-12-09 chong-ming Li 玩具銃における反動発生装置

Also Published As

Publication number Publication date
DK2177862T3 (da) 2011-04-11
DE602008004166D1 (de) 2011-02-03
EP2177862B1 (de) 2010-12-22
ATE492781T1 (de) 2011-01-15

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