CN102679811B - Rigid case ejecting method for short cartridge case firearm - Google Patents
Rigid case ejecting method for short cartridge case firearm Download PDFInfo
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- CN102679811B CN102679811B CN201210138097.3A CN201210138097A CN102679811B CN 102679811 B CN102679811 B CN 102679811B CN 201210138097 A CN201210138097 A CN 201210138097A CN 102679811 B CN102679811 B CN 102679811B
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- extractor
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- ejection
- out window
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Abstract
The invention discloses a rigid case ejecting method for a short cartridge case firearm. The method is characterized in that in a rigid case ejecting mechanism, an inclined plane which forms a chamfer is arranged on the top of a step of a case ejecting support, so that the side of the bottom end face of a cartridge case is in contact with the inclined plane under drawing of a case draw hook during case ejection, and the side of the bottom end face of the cartridge case collides with the inclined plane under drawing of the case draw hook, moves along the inclined plane in certain distance and then is ejected out of a case ejecting window. By modifying the structure of the case ejecting support, the acting relation between the cartridge case and the case ejecting support is changed. By the method, the rotating condition of the cartridge case and the time when the cartridge case is separated from the case draw hook can be changed, and the collision condition of the cartridge case and the case ejecting window during case ejection can be obviously improved, so that case ejection of the short cartridge case is reliable, and the case ejecting route is stable; and the method is suitable for case ejection of the short cartridge case of which the gravity center is close to the bottom of a cartridge.
Description
Technical field
The present invention relates to a kind of automatic weapon ejection method, especially a kind of short shell case firearms rigidity ejection method.
Background technology
In the time of automatic weapon cartridge shooting, need to adopt extractor to carry out ejection, to ensure the continuity of shooting.
Extractor mainly contains two kinds of rigidity extractor and elasticity extractors, and in pistol, rigidity extractor uses more.Existing rigidity extractor, its structure as shown in Figure 1, comprise casing, extractor 3, ejector 4 and shell throwing-out window 1, described shell throwing-out window 1 is opened on the trajectory of casing, described extractor 3 is positioned at a side of shell throwing-out window 1, described ejector 4 is arranged on a side relative with extractor 3 with shell throwing-out window 1 on trajectory inwall, the inner side that described extractor 3 is positioned at one end of shell throwing-out window 1 has inside crook, this crook catches on shell case 2 near the cannelure of bottom one side and pulls to the direction away from shell throwing-out window while being used for ejection, on described ejector 4, there is the step of the crook setting of corresponding extractor, step withstands shell case 2 bottom faces for the top by step in the time of ejection shell case 2 is ejected from shell throwing-out window 1.Wherein, reliable for ensureing ejection, shell case and ejector have the collision overlapping amount (being that thrum shell bottom face is pushed up the distance of position, place to bottom edge position) of 1.5 ㎜～2mm left and right, shell case is thrown off before extractor, all the time the top that is ejector step contacts with shell case, shell case is rearward rotation after coming off on extractor under ejector effect, and when after its oral area side cylindrical portion and shell throwing-out window peripheral collision, direction of rotation changes and shell case is flown out to body of a gun front upper place.In this process, the distance at Dan Diwo center and shell throwing-out window edge is a key factor that affects ejection reliability, and to short shell cases such as 9 millimeters of bar La Beilumu pistol cartridges, 92 formula 9 mm pistol bullet shell cases, this distance is subject to structural limitations, is difficult to shorten.Like this, the center of gravity that makes short shell case is an inner side at shell throwing-out window edge, thus after shell case collision, be not easy outside upset, in the time that gunlock movement velocity changes, very large to the reliability effect of ejection, often there is failure to eject or the fault that gets stuck.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how a kind of short shell case firearms rigidity ejection method that can improve ejection reliability for above-mentioned this rigidity extractor design in short shell case firearms is provided.
In order to solve the problems of the technologies described above, in the present invention, adopt following technical scheme:
A kind of short shell case firearms rigidity ejection method, it is characterized in that, in the rigidity extractor adopting, set out the inclined-plane of a formation chamfering at the top of the step of ejector, while making ejection under the pulling of extractor, the side of shell case bottom face first contacts with this inclined-plane, then under the pulling of extractor the side of shell case bottom face and this inclined-plane collide and move a segment distance along inclined-plane after be ejected shell throwing-out window.
Above-mentioned rigidity extractor, structure is specially, comprise casing, extractor, ejector and shell throwing-out window, described shell throwing-out window is opened on the trajectory of casing, described extractor is positioned at a side of shell throwing-out window, described ejector is arranged on a side relative with shell throwing-out window and extractor on trajectory inwall, the inner side that described extractor is positioned at one end of shell throwing-out window has inside crook, this crook catches on shell case near the cannelure of bottom one side and pulls to the direction away from shell throwing-out window while being used for ejection, on described ejector, there is the step of the crook setting of corresponding extractor, described step top is provided with the inclined-plane of a formation chamfering.
By the structure of amendment ejector, at the top of the step of ejector, one inclined-plane is set, while making ejection, shell case is that bottom face edge contacts and collides with the step inclined-plane of ejector all the time, shell case bottom face side is ejected after the distance of Shang Yi one end, inclined-plane again, therefore changed moving line and the rotation situation of shell case, change the opportunity of shell case disengagement extractor, overcome the defect easily getting stuck when short shell case exists ejection, the collision situation of shell case and shell throwing-out window while obviously having improved ejection, improves shelling reliability.
In sum, the present invention has changed the interactively of shell case and ejector, makes short shell case ejection reliable, and ejection route is stable.Meanwhile, also have and change simply, implement the advantages such as convenient.
Brief description of the drawings
Fig. 1 is the structural representation of existing rigidity extractor described in background technology.
Fig. 2 is the structural representation of the extractor that adopts of the present invention.
Fig. 3 is the ejection track schematic diagram after extractor shell case in Ejecting Process that the present invention adopts is ejected by the inclined-plane of the step of ejector.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
A kind of short shell case firearms rigidity ejection method, its feature is, in the rigidity extractor adopting, set out the inclined-plane of a formation chamfering at the top of the step of ejector 4, while making ejection under the pulling of extractor 3, the side of shell case 2 bottom faces first contacts with this inclined-plane, then under the pulling of extractor 3 side of shell case 2 bottom faces and this inclined-plane collide and move a segment distance along inclined-plane after be ejected shell throwing-out window 1.
Referring to Fig. 2, above-mentioned rigidity extractor, structure is specially, comprise casing, extractor 3, ejector 4 and shell throwing-out window 1, described shell throwing-out window 1 is opened on the trajectory of casing, described extractor 3 is positioned at a side of shell throwing-out window 1, described ejector 4 is arranged on a side relative with extractor 3 with shell throwing-out window 1 on trajectory inwall, the inner side that described extractor 3 is positioned at one end of shell throwing-out window 1 has inside crook, this crook catches on shell case 2 near the cannelure of bottom one side and to pulling away from the direction of shell throwing-out window 1 while being used for ejection, on described ejector 4, there is the step of the crook setting of corresponding extractor 3, described step top is provided with the inclined-plane of a formation chamfering.
Fig. 3 is the ejection track schematic diagram after extractor shell case in Ejecting Process that the present invention adopts is ejected by the inclined-plane of the step of ejector.As shown in it, the collision situation of shell case and shell throwing-out window when the present invention can obviously improve ejection.
In sum, the present invention adopts rigidity ejector, and chamfering inclined-plane is set on ejector, can determine optimum shelling opportunity by adjusting chamfer angle and length, change the rotary state of shell case to adapt to different ejection requirements, be suitable for center of gravity by the short shell case ejection at the bottom of bullet; Be particluarly suitable for middle use of firearms (as 9 millimeters of bar La Beilumu pistol cartridges, 92 formula 9 mm pistols etc.) of 9 millimeters of bullets.
Claims (1)
1. one kind short shell case firearms rigidity ejection method, it is characterized in that, in the rigidity extractor adopting, set out the inclined-plane of a formation chamfering at the top of the step of ejector, while making ejection under the pulling of extractor, the side of shell case bottom face first contacts with this inclined-plane, then under the pulling of extractor the side of shell case bottom face and this inclined-plane collide and move a segment distance along inclined-plane after be ejected shell throwing-out window, described rigidity extractor, structure is specially, comprise casing, extractor, ejector and shell throwing-out window, described shell throwing-out window is opened on the trajectory of casing, described extractor is positioned at a side of shell throwing-out window, described ejector is arranged on a side relative with shell throwing-out window and extractor on trajectory inwall, the inner side that described extractor is positioned at one end of shell throwing-out window has inside crook, this crook catches on shell case near the cannelure of bottom one side and pulls to the direction away from shell throwing-out window while being used for ejection, on described ejector, there is the step of the crook setting of corresponding extractor, described step top is provided with the inclined-plane of a formation chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210138097.3A CN102679811B (en) | 2012-05-07 | 2012-05-07 | Rigid case ejecting method for short cartridge case firearm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210138097.3A CN102679811B (en) | 2012-05-07 | 2012-05-07 | Rigid case ejecting method for short cartridge case firearm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102679811A CN102679811A (en) | 2012-09-19 |
| CN102679811B true CN102679811B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210138097.3A Expired - Fee Related CN102679811B (en) | 2012-05-07 | 2012-05-07 | Rigid case ejecting method for short cartridge case firearm |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120340B (en) * | 2017-12-19 | 2020-01-31 | 重庆建设工业(集团)有限责任公司 | shotgun rigid shell withdrawing mechanism and shell withdrawing method |
| CN110108158A (en) * | 2019-05-31 | 2019-08-09 | 小青鸟文化科技(苏州)有限公司 | A kind of ejection mould group of gun-simulation |
| CN113720204B (en) * | 2021-09-17 | 2023-05-19 | 重庆建设工业(集团)有限责任公司 | Elastic shell throwing gun jack and mounting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8006609B2 (en) * | 2007-09-28 | 2011-08-30 | Sturm, Ruger & Company, Inc. | Slide catch-ejector assembly for firearm |
-
2012
- 2012-05-07 CN CN201210138097.3A patent/CN102679811B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| "自动武器抛壳过程的动力学分析";孙镇和;《兵工学报》;19931130;第7页第8行到第10行，图2.1，图2.2 * |
| 孙镇和."自动武器抛壳过程的动力学分析".《兵工学报》.1993,第7页到第10页. |
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| CN102679811A (en) | 2012-09-19 |
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