US20190154375A1 - Ammunition magazine for firearms - Google Patents

Ammunition magazine for firearms Download PDF

Info

Publication number
US20190154375A1
US20190154375A1 US16/163,760 US201816163760A US2019154375A1 US 20190154375 A1 US20190154375 A1 US 20190154375A1 US 201816163760 A US201816163760 A US 201816163760A US 2019154375 A1 US2019154375 A1 US 2019154375A1
Authority
US
United States
Prior art keywords
guide ribs
magazine
cartridge
cartridges
magazine body
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.)
Abandoned
Application number
US16/163,760
Inventor
Vladimir Simek
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.)
Ceska Zbrojovka AS
Original Assignee
Ceska Zbrojovka AS
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 Ceska Zbrojovka AS filed Critical Ceska Zbrojovka AS
Assigned to CESKA ZBROJOVKA A.S. reassignment CESKA ZBROJOVKA A.S. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIMEK, VLADIMIR
Publication of US20190154375A1 publication Critical patent/US20190154375A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/65—Box magazines having a cartridge follower
    • F41A9/70—Arrangements thereon for discharging, e.g. cartridge followers or discharge throats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/65—Box magazines having a cartridge follower
    • F41A9/69—Box magazines having a cartridge follower characterised by multiple-row or zigzag arrangement of cartridges

Definitions

  • the invention relates to an ammunition magazine for firearms, designed especially to be used for different sizes of cartridges that have the same diameter of the bottom and a similar total length, but are different in the region around the bullet and the bearing cone of the cartridge case.
  • Such magazines are intended for small-bore rifles, pistols, rifles, submachine guns and the like.
  • an ammunition magazine for firearms for multiple types of cartridges with different calibers that consists of a magazine body where a cartridge feeder fitted with a spring is movably arranged, at least two pairs of opposite guide ribs being arranged on the inner wall of the magazine, namely rear guide ribs and central guide ribs, according to the invention the principle of which is that in the magazine body, on the inner wall of the magazine, at least one pair of opposite front guide ribs is arranged in front of the rear guide ribs and the central guide ribs, the height of the front guide ribs being bigger than that of the rear guide ribs and of the central guide ribs.
  • An ammunition magazine for firearms for multiple types of cartridges with different calibers comprises a magazine body where a cartridge feeder fitted with a spring is movably arranged, while at least two pairs of opposite guide ribs are arranged on the inner wall of the magazine, namely rear guide ribs (a) and central guide ribs (b).
  • a cartridge feeder fitted with a spring is movably arranged, while at least two pairs of opposite guide ribs are arranged on the inner wall of the magazine, namely rear guide ribs (a) and central guide ribs (b).
  • the magazine body ( 1 ) on the inner wall ( 6 ) of the magazine ( 4 ), at least one pair of opposite front guide ribs (c) is arranged in front of the rear guide ribs (a) and the central guide ribs (b), the height of the front guide ribs (c) being bigger than that of the rear guide ribs (a) and of the central guide ribs (b).
  • the opposite front guide ribs can be fitted with a leading edge.
  • the heights of the rear guide ribs and the central guide ribs can be different.
  • All the guide ribs on the inner wall of the magazine body can be created all along the wall length of the magazine body.
  • Such a minor change of the magazine at minimal costs allows a single magazine to be used for two and more types of cartridges that have the same length and equal diameter of the cartridge foot, but otherwise, the cartridges are of a different shape, especially in the region of transition between the bullet and the cartridge case.
  • Additional guide ribs may also contribute to a higher strength of the magazine body.
  • Another advantage of the claimed magazine is also the fact that by means of suitably arranged guide ribs, the magazine body firmly holds and carries the cartridges, the cartridge feeder moves relatively freely in the magazine body, virtually without any direct contact with the inner wall of the magazine body.
  • FIG. 1 shows a general view of the magazine body without cartridges
  • FIG. 2 shows a cross-section of the magazine body where the first type of cartridges is stored
  • FIG. 3 shows a cross-section of the magazine body where the second type of cartridges is stored.
  • the exemplary box ammunition magazine shown in FIG. 1 comprises a magazine body 1 where a cartridge feeder 2 is arranged that is fitted with a spring 3 .
  • the magazine body 1 is, on both the inner sides 5 of the cavity of the body 1 , fitted with two pairs of guide ribs a, b to guide cartridges 4 , namely a pair of rear guide ribs a in the rear part of the magazine body 1 to guide the cartridge 4 foot and a pair of central guide ribs b in the central part of the magazine body 1 to guide the central part of the cartridge 4 .
  • the magazine body 1 In the front part of the magazine body 1 , in the place of seating of the cartridge bullet 7 , the magazine body 1 is fitted with another pair of front guide ribs c on the inner sides 5 of the wall 6 .
  • the height of the front guide ribs c is bigger than the height of the central and rear guide ribs a and b.
  • the height of the ribs a and b may be the same or different, depending on the type of cartridges 4 intended to be inserted into the magazine body 1 .
  • the cartridge 4 when the first cartridge type is inserted, the cartridge 4 is held in the magazine body 1 in its bottom part by the pair of the rear guide ribs a and the pair of the front guide ribs c in the region of the bullet 7 .
  • this first cartridge 4 type exhibits some play, namely play e.
  • this first cartridge 4 type is not in contact with the pair of the central guide ribs b.
  • Concerning fixation of the cartridge 4 in the magazine body 1 only the pairs of the rear guide ribs a and the front guide ribs c are functional in this case.
  • the cartridge 4 when the second cartridge type is inserted, the cartridge 4 is held in the magazine body 1 in its bottom part by the pair of the rear guide ribs a again and further by the pair of the central guide ribs b, namely in the location of the central region of the cartridge 4 .
  • this second cartridge 4 type in the location of the pair of the front guide ribs c, there is some play, namely play f. So it is obvious that this second cartridge 4 type is not in contact with the pair of the front guide ribs c. In this case, concerning the fixation of the cartridge 4 in the magazine body 1 , only the pairs of the rear guide ribs a and the central guide ribs b are functional.
  • the front guide ribs c designed to hold the region of the cartridge bullet 7 are provided with a leading edge 8 .
  • the leading edge 8 facilitates insertion and removal of the cartridge 4 into and from the magazine body 1 .
  • the leading edge 8 of the front guide ribs c extends from the inner side 5 of the wall 6 of the magazine body 1 to the peaks of the front guide ribs c.
  • the guide ribs a, b and c can be created on the inner side 5 of the wall 6 of the magazine body 1 , all along the length of this inner side 5 of the wall 6 to firmly hold each of the cartridges 4 in the magazine body 1 to prevent the cartridges 4 from getting stuck in the magazine body 1 or from accidentally falling out, and to avoid unpleasant noise during handling of the magazine caused by the cartridges 4 hitting the magazine body 1 .
  • the assembly of the pairs of ribs a, b, c according to this invention makes it possible to use a single magazine for more cartridge types.
  • the magazine can be used e.g. for at least two types of cartridges with a similar total length, in particular 5,56 ⁇ 45 NATO/223 Rem. and 7,62 ⁇ 35/300 AAC, which have a similar diameter of the cartridge foot and total length, but a different cartridge length and a different bullet shape.
  • the said embodiment of the invention is intended for two cartridge designs, but more guide ribs or their pairs can be suitably installed in the magazine body 1 to ensure reliable functionality for a bigger number of cartridge types.
  • An ammunition magazine for firearms according to this invention can be applied to the use of arms by security forces, huntsmen etc. It is convenient everywhere that two and more cartridge types can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Automatic Tape Cassette Changers (AREA)

Abstract

An ammunition magazine for firearms for multiple types of cartridges with different calibers comprises a magazine body where a cartridge feeder fitted with a spring is movably arranged, while at least two pairs of opposite guide ribs are arranged on the inner wall of the magazine, namely rear guide ribs and central guide ribs. In the magazine body, on the inner wall of the magazine, at least one pair of opposite front guide ribs is arranged in front of the rear guide ribs and the central guide ribs, with the height of the front guide ribs being bigger than that of the rear guide ribs and of the central guide ribs.

Description

    RELATED APPLICATIONS
  • The application claims the benefit of Czech Patent Application No. 2017-751, entitled “Ammunition Magazine for Firearms”, filed Nov. 22, 2017, the entire disclosure of which is incorporated herein by reference.
    • FIELD OF THE INVENTION
  • The invention relates to an ammunition magazine for firearms, designed especially to be used for different sizes of cartridges that have the same diameter of the bottom and a similar total length, but are different in the region around the bullet and the bearing cone of the cartridge case. Such magazines are intended for small-bore rifles, pistols, rifles, submachine guns and the like.
    • BACKGROUND INFORMATION
  • Various types of ammunition magazines, as, e.g., of rotary, drum, disk and box types, are known from the state of the art. Current box magazines are usually fitted with a pair of guide ribs for cartridges on its inner side. The ribs are used to guide cartridges in such a way as these cartridges should not touch the magazine wall with their entire surface.
  • Due to an unsuitable size of ribs for a certain cartridge type, current types of box magazines can cause 2 kinds of defects:
      • The rib size is too large, which means there is a smaller play between the ribs, resulting in the cartridge getting stuck in the magazine body during loading and unloading. This may cause that, during the removal of cartridges from the magazine body, the magazine spring is not able to completely push the cartridges to the initial position necessary to feed the cartridge to the cartridge chamber.
      • The rib size is small—the cartridges have a big play in the magazine body after loading, which may lead to an unsuitable position of cartridges in the magazine and a failure to feed them to the cartridge chamber, or also inadvertent falling of cartridges out of the magazine during handling. A small rib size also causes an unpleasant noise during handling of the loaded cartridge caused by free cartridges hitting the magazine body.
  • From the document US2015345882, whose owner is the company MAGPUL IND. CORP., an ammunition magazine is also known the inner wall of which is fitted with multiple ribs. However, these guide ribs are not intended to guide multiple types of cartridges, but to guide the feeder.
  • A general drawback of these magazines is that they can be created for a single cartridge type only. If various types of cartridges with a similar total length need to be used, the cartridges cannot be used in such a way to always exhibit a reliable function for multiple types of cartridges.
    • SUMMARY OF THE INVENTION
  • The above mentioned drawbacks are to a considerable extent eliminated by an ammunition magazine for firearms for multiple types of cartridges with different calibers that consists of a magazine body where a cartridge feeder fitted with a spring is movably arranged, at least two pairs of opposite guide ribs being arranged on the inner wall of the magazine, namely rear guide ribs and central guide ribs, according to the invention the principle of which is that in the magazine body, on the inner wall of the magazine, at least one pair of opposite front guide ribs is arranged in front of the rear guide ribs and the central guide ribs, the height of the front guide ribs being bigger than that of the rear guide ribs and of the central guide ribs.
  • An ammunition magazine for firearms for multiple types of cartridges with different calibers comprises a magazine body where a cartridge feeder fitted with a spring is movably arranged, while at least two pairs of opposite guide ribs are arranged on the inner wall of the magazine, namely rear guide ribs (a) and central guide ribs (b). In the magazine body (1), on the inner wall (6) of the magazine (4), at least one pair of opposite front guide ribs (c) is arranged in front of the rear guide ribs (a) and the central guide ribs (b), the height of the front guide ribs (c) being bigger than that of the rear guide ribs (a) and of the central guide ribs (b).
  • The opposite front guide ribs can be fitted with a leading edge.
  • Also, the heights of the rear guide ribs and the central guide ribs can be different.
  • All the guide ribs on the inner wall of the magazine body can be created all along the wall length of the magazine body.
  • Such a minor change of the magazine at minimal costs allows a single magazine to be used for two and more types of cartridges that have the same length and equal diameter of the cartridge foot, but otherwise, the cartridges are of a different shape, especially in the region of transition between the bullet and the cartridge case.
  • Additional guide ribs may also contribute to a higher strength of the magazine body.
  • Another advantage of the claimed magazine is also the fact that by means of suitably arranged guide ribs, the magazine body firmly holds and carries the cartridges, the cartridge feeder moves relatively freely in the magazine body, virtually without any direct contact with the inner wall of the magazine body.
    • BRIEF DESCRIPTION OF DRAWINGS
  • The ammunition magazine for firearms according to the present invention will be described in a more detailed way with the use of a particular embodiment example with reference to attached drawings where:
  • FIG. 1 shows a general view of the magazine body without cartridges,
  • FIG. 2 shows a cross-section of the magazine body where the first type of cartridges is stored, and
  • FIG. 3 shows a cross-section of the magazine body where the second type of cartridges is stored.
    •  DESCRIPTION OF EMBODIMENTS OF THE INVENTION
  • The exemplary box ammunition magazine shown in FIG. 1 comprises a magazine body 1 where a cartridge feeder 2 is arranged that is fitted with a spring 3. The magazine body 1 is, on both the inner sides 5 of the cavity of the body 1, fitted with two pairs of guide ribs a, b to guide cartridges 4, namely a pair of rear guide ribs a in the rear part of the magazine body 1 to guide the cartridge 4 foot and a pair of central guide ribs b in the central part of the magazine body 1 to guide the central part of the cartridge 4. In the front part of the magazine body 1, in the place of seating of the cartridge bullet 7, the magazine body 1 is fitted with another pair of front guide ribs c on the inner sides 5 of the wall 6.
  • The height of the front guide ribs c is bigger than the height of the central and rear guide ribs a and b. The height of the ribs a and b may be the same or different, depending on the type of cartridges 4 intended to be inserted into the magazine body 1.
  • According to the embodiment shown in FIG. 2, when the first cartridge type is inserted, the cartridge 4 is held in the magazine body 1 in its bottom part by the pair of the rear guide ribs a and the pair of the front guide ribs c in the region of the bullet 7. In the location of the pair of the central guide ribs b, this first cartridge 4 type exhibits some play, namely play e. Thus, it is obvious that this first cartridge 4 type is not in contact with the pair of the central guide ribs b. Concerning fixation of the cartridge 4 in the magazine body 1, only the pairs of the rear guide ribs a and the front guide ribs c are functional in this case.
  • According to the embodiment shown in FIG. 3, when the second cartridge type is inserted, the cartridge 4 is held in the magazine body 1 in its bottom part by the pair of the rear guide ribs a again and further by the pair of the central guide ribs b, namely in the location of the central region of the cartridge 4. With this second cartridge 4 type, in the location of the pair of the front guide ribs c, there is some play, namely play f. So it is obvious that this second cartridge 4 type is not in contact with the pair of the front guide ribs c. In this case, concerning the fixation of the cartridge 4 in the magazine body 1, only the pairs of the rear guide ribs a and the central guide ribs b are functional.
  • The front guide ribs c designed to hold the region of the cartridge bullet 7 are provided with a leading edge 8. The leading edge 8 facilitates insertion and removal of the cartridge 4 into and from the magazine body 1. The leading edge 8 of the front guide ribs c extends from the inner side 5 of the wall 6 of the magazine body 1 to the peaks of the front guide ribs c.
  • The guide ribs a, b and c can be created on the inner side 5 of the wall 6 of the magazine body 1, all along the length of this inner side 5 of the wall 6 to firmly hold each of the cartridges 4 in the magazine body 1 to prevent the cartridges 4 from getting stuck in the magazine body 1 or from accidentally falling out, and to avoid unpleasant noise during handling of the magazine caused by the cartridges 4 hitting the magazine body 1.
  • The assembly of the pairs of ribs a, b, c according to this invention makes it possible to use a single magazine for more cartridge types.
  • The magazine can be used e.g. for at least two types of cartridges with a similar total length, in particular 5,56×45 NATO/223 Rem. and 7,62×35/300 AAC, which have a similar diameter of the cartridge foot and total length, but a different cartridge length and a different bullet shape.
  • The said embodiment of the invention is intended for two cartridge designs, but more guide ribs or their pairs can be suitably installed in the magazine body 1 to ensure reliable functionality for a bigger number of cartridge types.
    • INDUSTRIAL APPLICABILITY
  • An ammunition magazine for firearms according to this invention can be applied to the use of arms by security forces, huntsmen etc. It is convenient everywhere that two and more cartridge types can be used.
    • LIST OF REFERENCE SIGNS
    • 1—magazine body
    • 2—feeder
    • 3—spring
    • 4—cartridge
    • 5—inner side of the magazine wall
    • 6—magazine wall
    • 7—bullet
    • 8—leading edge
    • a—rear guide ribs
    • b—central guide ribs
    • c—front guide ribs
    • e—play between the central guide rib b and cartridge
    • f—play between the front guide rib c and cartridge

Claims (4)

1. An ammunition magazine for firearms for multiple types of cartridges with different calibers comprises a magazine body where a cartridge feeder fitted with a spring is movably arranged, while at least two pairs of opposite guide ribs are arranged on the inner wall of the magazine, namely rear guide ribs and central guide ribs, wherein in the magazine body, on the inner wall of the magazine, at least one pair of opposite front guide ribs is arranged in front of the rear guide ribs and the central guide ribs, the height of the front guide ribs being bigger than that of the rear guide ribs and of the central guide ribs.
2. The magazine according to claim 1, wherein the front guide ribs are provided with a leading edge.
3. The magazine according to claim 1, wherein the heights of the rear guide ribs and the central guide ribs are different.
4. The magazine according to claim 1, wherein the guide ribs (a, b, c) are created on the inner wall of the magazine body all along the length of the wall of the magazine body.
US16/163,760 2017-11-22 2018-10-18 Ammunition magazine for firearms Abandoned US20190154375A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2017-751A CZ2017751A3 (en) 2017-11-22 2017-11-22 Cartridge cartridge for firearms
CZPV2017-751 2017-11-22

Publications (1)

Publication Number Publication Date
US20190154375A1 true US20190154375A1 (en) 2019-05-23

Family

ID=66534455

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/163,760 Abandoned US20190154375A1 (en) 2017-11-22 2018-10-18 Ammunition magazine for firearms

Country Status (3)

Country Link
US (1) US20190154375A1 (en)
CZ (1) CZ2017751A3 (en)
IL (1) IL262912A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD987763S1 (en) * 2021-05-07 2023-05-30 22 Evolution Llc Magazine for firearm

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120124879A1 (en) * 2010-11-23 2012-05-24 Larue Mark C Firearmcartridge magazine having mechanism for low-friction cartridge orienting and guiding
US20150192377A1 (en) * 2014-01-09 2015-07-09 Rock River Arms, Inc. Magazine For Firearm
US20150241162A1 (en) * 2014-02-25 2015-08-27 Paratus Magazine insert
US20180202734A1 (en) * 2017-01-13 2018-07-19 Sig Sauer, Inc. Multi-caliber magazine for a firearm and a method of forming the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8028455B1 (en) * 2009-12-15 2011-10-04 Battaglia Vincent P Firearms magazine for rifle length cartridges
WO2012003020A2 (en) * 2010-03-25 2012-01-05 ArmWest, LLC High capacity magazine
US8448364B2 (en) * 2010-09-17 2013-05-28 Michael J. Davidson Double stack box magazine for rimmed cartridges of varying length
US20150345882A1 (en) * 2014-06-03 2015-12-03 Magpul Industries Corp Compact anti-tilt follower for an ammunition magazine
US9383152B2 (en) * 2014-10-24 2016-07-05 Magpul Industries Corp. Weapon magazine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120124879A1 (en) * 2010-11-23 2012-05-24 Larue Mark C Firearmcartridge magazine having mechanism for low-friction cartridge orienting and guiding
US20150192377A1 (en) * 2014-01-09 2015-07-09 Rock River Arms, Inc. Magazine For Firearm
US20150241162A1 (en) * 2014-02-25 2015-08-27 Paratus Magazine insert
US20180202734A1 (en) * 2017-01-13 2018-07-19 Sig Sauer, Inc. Multi-caliber magazine for a firearm and a method of forming the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD987763S1 (en) * 2021-05-07 2023-05-30 22 Evolution Llc Magazine for firearm
USD1020970S1 (en) 2021-05-07 2024-04-02 22 Evolution Llc Magazine for firearm
USD1023215S1 (en) 2021-05-07 2024-04-16 22 Evolution Llc Magazine for firearm

Also Published As

Publication number Publication date
IL262912A (en) 2019-03-31
CZ307611B6 (en) 2019-01-09
CZ2017751A3 (en) 2019-01-09

Similar Documents

Publication Publication Date Title
US8156675B2 (en) Firearm magazine
US9599417B2 (en) Extractor mechanism for firearm
US3193959A (en) Safety chamber plug for firearms
US20140150315A1 (en) Magazine for a Firearm
US9784511B2 (en) Magazine assembly with magnetically activated tacticle indicator
EP2160561A2 (en) Cartridge magazine for firearms
US9618285B2 (en) Removable magazine for a rifle
US5503080A (en) Bomb retaining device
US20160010936A1 (en) Firearm Compensator Assembly
US8028454B1 (en) Loaded chamber indicator systems for semiautomatic handguns
US9851165B2 (en) Firing pin assembly
US6189454B1 (en) Inert practice round with solid body
US10996009B2 (en) Cartridge magazine
US20190154375A1 (en) Ammunition magazine for firearms
US8839541B1 (en) Firearm having cartridge feed ramp
US3678609A (en) Safety plug for firearms
US6237272B1 (en) Breech block safety device
US9752838B2 (en) Magazine loading assembly
US10690462B2 (en) Secondary malfunction training round
US20140259844A1 (en) Firearm Magazine Having Nose-Dive-Control Spring
US9689632B2 (en) Integral spring bottom metal latch
CN115298509A (en) Bullet loading machine for shotgun
US11118855B2 (en) Extractor for revolvers
US20120266512A1 (en) Extractor and bolt for a firearm
CZ31463U1 (en) A set of a magazine and cartridges for firearms

Legal Events

Date Code Title Description
AS Assignment

Owner name: CESKA ZBROJOVKA A.S., CZECH REPUBLIC

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIMEK, VLADIMIR;REEL/FRAME:047211/0677

Effective date: 20181016

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION