US3359859A - Ammunition container with cartridge lift mechanism having a chain drive with two adjustable tensioning rollers - Google Patents

Ammunition container with cartridge lift mechanism having a chain drive with two adjustable tensioning rollers Download PDF

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Publication number
US3359859A
US3359859A US568429A US56842966A US3359859A US 3359859 A US3359859 A US 3359859A US 568429 A US568429 A US 568429A US 56842966 A US56842966 A US 56842966A US 3359859 A US3359859 A US 3359859A
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US
United States
Prior art keywords
chain
container
cartridges
tensioning
adjustable
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.)
Expired - Lifetime
Application number
US568429A
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English (en)
Inventor
Herlach Heinrich
Metzger Ernst
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.)
OC Oerlikon Corp AG Pfaeffikon
Original Assignee
Oerlikon Buehrle Holding AG
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 Oerlikon Buehrle Holding AG filed Critical Oerlikon Buehrle Holding AG
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Expired - Lifetime legal-status Critical Current

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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
    • F41A9/76—Magazines having an endless-chain conveyor

Definitions

  • This invention relates to an ammunition container, in which sets of cartridges arranged in layers are movable along a straight-line path across the layer and a lower set of cartridges is supported by two supporting elements, of which one supporting element is connected to a drive and both supporting elements are movably connected together by an endless chain guided over two sprocket wheels, with an adjustable tension roller for tensioning one stringer of the chain.
  • each set of cartridges is supported by a first and a second sup porting element and a separate drive is provided for the first and the second supporting element.
  • These two drives are arranged on the same side of the ammunition container, while the supporting elements are located on opposite sides so that long transmission agents are necessary.
  • a further disadvantage of this known ammunition container is that no device is provided for adjusting the angular relationship of the two above-mentioned sprocket wheels, whereby the position of the sets of cartridges is not variable in relation to their sliding path.
  • An object of the present invention is to avoid these disadvantages.
  • a further object of the invention is to provide a construction wherein the chain forms the drive for the other supporting element, and a second adjustable tensioning roller is provided for tehsioning the other stringer of the chain so that the angular relationship of the two chain sprockets is adjustable by shifting the two tensioning rollers in the same direction.
  • FIGURE 1 is a plan view of the container.
  • FIGURE 2 is a cross-sectional view taken upon section line II-II of FIGURE 1.
  • FIGURE '3 is a cross-sectional view taken upon section line IIIIII of FIGURE 2.
  • FIGURE 4 is a cross-sectional view taken upon section line IVIV of FIGURE 2.
  • FIGURE 5 is a cross-sectional view taken upon section line VV of FIGURE 2.
  • FIGURE 6 is a cross-sectional view taken upon section line VIVI of FIGURE 4.
  • FIGURE 7 is a partial plan view of a section of a front conveyor chain.
  • FIGURE 8 is a partial cross-sectional view with parts in elevation of the ratchet gear of the conveyor device in one working position.
  • FIGURE 9 is a similar view showing the elements in another working position.
  • FIGURE 10 is a cross-sectional view taken upon section line XX of FIGURE 2.
  • the container 10 is designed to stack sets of cartridges 91, which are held in magazine loading clips 90.
  • a clip 90 shown in FIGURE 1 in plan and in end view in FIG- URE 2, consists of a sheet-metal strip 11, both longitudinal edges of which are bent to the front so that they form longitudinal grooves 12, the width of which cor- United States Patent 0 3,359,359 Patented Dec. 26, 19 67 responds to the height of the extraction rims 14 of the cartridges 13.
  • the center portions of the clips 11 are pressed outwards into a U-shaped corrugation 15, extending over the whole length of the clip.
  • a couple of conveyor rollers 16 are supported in the two ends of the clip in each case. In the rear corners of the container 10, reaching to the base, are fixed two guide rails 17, with U-profile, in which the rollers 16 are guided.
  • An opening 18 is formed in the cover of the container (FIGURE 1), which serves for inserting and removing the clips. As shown in FIGURE 2, in both side pieces of the cover sheet 19 recesses 191 are formed, the height of which is greater than the diameter of the cartridge 13.
  • guides 25 are secured, which engage in the necks 131 of the two outside cartridges 13 held in a clip and, in conjunction with the rails 17, serve to guide the cartridge sets 91 in the container 10.
  • FIGURE 3 shows, a conveyor device 85, fitted with chains, is mounted on the two side walls 101 and 102.
  • the sprocket wheels 27 and 29 are supported on the two shafts 26 and 28 mounted on the walls 101 and 102, and a ratchet wheel 30, forming part of a locking device 82 which is pivoted on the same shaft 28, is rigidly connected to the wheel 29.
  • three saw-tooth shaped locking spaces 301 with equal angular spacing are formed in the circumference of the ratchet wheel 30.
  • One side 302 of the areas of contact of a space 301 is arranged radially, while the other side 303 cuts flat a plane surface 305 extending tangentially from the circular periphery 304.
  • a bolt 34 rigidly connected to a fork-shaped part 331 of a pawl 33 gripping the lug 322,
  • a spring 35 engaging with the lower end of the pawl 33 is supported on a pin 36, connected to the container wall 102.
  • the surface 332 of the pawl 33 is loaded in the direction of the surface 321 of the lever 32, so that the distance of its edge 333 from the swivel pin 28 is at least as great as the radius of the circular peripheral surface of the ratchet wheel 30.
  • FIGURE 4 shows, three sprocket wheels 39, 40 and 41, together with a washer 42, are keyed to a shaft 38 arranged above the container base 84, supported in the two side walls 101, 102.
  • An additional Washer 43 is supported rotatably on this shaft 38 and lockable by means of a pawl 44 pivoted on the container base 84 (FIGURE 6).
  • the ends, arranged concentrically to the shaft 38, of a spiral spring 45 forming the driving motor of the conveyor device, are secured to these two washers 42 and 43 by means of bolts 77.
  • endless conveyor chains 46, 47 constructed as roller chains, are laid over the two pairs of sprocket wheels 27, 39 and 29, 40 of the conveyor device indicated generally by 85.
  • the two carriers 50 each provided with a pair of rollers 51, are guided in the rails 17 which are connected by a rod 52 lying parallel to the container rear wall 103 (FIGURE 3).
  • a stop 53 directed towards the base of a rail 17, and in addition a catch 54 which, located between two rollers 471 of a stringer of a conveyor chain 46 and 47, lie next to and parallel to a rail 17, grips one of these rollers 471.
  • stops 55 are inserted in the upper part of the rails 17, in the base-of the same.
  • Sprocket wheels 57, 58 are mounted on two pins 56 rigidly fixed to the container walls 101, 102.
  • Three sprocket wheels 60, 61, 62 are keyed to a shaft 59, also supported in these container walls (FIGURE 4).
  • This shaft 59 is in driving connection with the shaft 38 through an endless chain 64 laid over the sprocket wheels 41 and 62.
  • Two eccentric devices 80 which both have a tensioning roller 63 (FIGURE 2), serve for accurate adjustment of the conveyor device, so that the cartridges lie at right angles to the direction of feed.
  • Each of these eccentric devices engages in a stringer of the chain 64 and is as shown in FIGURE mounted in an aperture 83 in a circular collar 93 on the casing wall 102.
  • a washer 96 is rotatably supported 'on the circular collar 93.
  • the washer 96 with its flange 81 is pressed against the circular collar 93 by means of a second washer 94 and bolts 93, 99, so that a rigid connection takes place between the washers 94, 96 and the casing wall 102.
  • a bolt 97 carrying the tensioning roller 63 is secured to the washers 93 and 94, by means of the bolt 99.
  • the bolts 98 and 99 must first be loosened.
  • the two conveyor chains 65, 66 driven by the sprocket wheels 60, 61 and led over the wheels 57, 58, are constructed with links 67 and double links 68 which, as FIGURE 7 shows, are flexibly connected by means of the pins 69.
  • the bolt heads 691 and the washers. 70 having the same diameter as these, secured to the shaft 692, engage in the spaces in the teeth of the sprocket wheels 57, 58 and 60, 61, constructed with doubletoothed rims.
  • a number of successive links 67 of a chain 65 or 66 have two lugs 671 directed towards the container rear wall 103, enclosing an acute angle.
  • Each pair of these rods 71 connected to a link 67 form a plane, which is inclined to the container base.
  • fastened labels 72 To these pairs of rods 71 are fastened labels 72, the sides of which facing towards the opening 18 in the container are marked with numbers from 1 to 9, corresponding to the numbers of sets of cartridges 91 which can be stacked.
  • a further number of successive links 73 of the chain 65 are provided with projecting parts 731, to which labels 74 are fastened. These are set at right angles to the plane formed by the two stringers of the chain 65. With the movement of the chain 65, the surfaces of the labels 64, provided with the numbers 1 to 9, run along the front container wall 104 past a sight opening 75 contained in the latter.
  • the clips 90 guided by the pairs of rollers 16 in the rails 17, lie touching on top of one another, sothat the whole stack is supported on the carriers 50, likewise movable in the rails 17, which rest with their lower rollers 51 on the container base.
  • the projectiles 92 of the individual sets of cartridges 91 are secured by the rods 71 of the upper and lower lugs 671 of two successive links 67 of the chains 65 and 66, so that the cartridges are directed parallel to the container base.
  • the projectiles 92 of the top set of cartridges 91 lie on the upper of each pair of rods 71 which carries the label 72 marked 9.
  • the tensioned driving spring 45 of the conveyor device acts on the shaft 38 so that a downward pull is exerted on the stringers of the chains 46, 47 lying on the right in FIGURE 2, and thereby a circumferential force acts on the sprocket wheels 27 and 29 which tend to turn these wheels in a clockwise direction and therewith also the ratchet wheel 30 connected to the wheel 29.
  • a rotation of the ratchet wheel 30 is, however, prevented because the surface 303 of the latter abuts against the surface 334 of the pawl 33 pivoted on the lever 32 (FIGURE 2).
  • the carriers 50 connected to the chains 46, 47, move and raise the stack of clips 90 resting on them, with corresponding release of the driving spring 45, by an amount corresponding to the height of such a clip 90, whereby the lower roller 16 of the pair of rollers on the right (as viewed by the operator) of the clip, now conveyed to the top position again, arrives between the lever lug 324 and the Wall 171 of the guide 17, and thereby prevents rotation of the lever 32 and the ratchet wheel 30 in the way already explained.
  • the movement of the drive shaft 38 is transmitted by the chain 64 to the shaft 59, so that the chains 65 and 66, moved by the latter, move in the same direction, and at the same speed, as the chains 46 and 47.
  • the pawl 33 is rotated about its axis. Then, however, it snaps into the next gap 301 of the ratchet wheel 30, whereby its surface 334 lies behind the surface 303 of the latter. Therewith, after cessation of the pressure exerted in inserting the set of cartridges 91, return clockwise rotation of the ratchet wheel 30, and hence also the undesired upward movement of the stack of sets of cartridges, is prevented.
  • the compressive force which must be used in inserting the sets of cartridges 91 in the container corresponds to the difference between the total force transmitted by the spring 45 to the chains 46, 47 and 65, 66 and the weight of the sets of cartridges weighing down on the carriers 50 and the rods 71.
  • the characteristic of the driving spring 45 for the conveyor device is now so determined that the magnitude of this compressive force is practically always the same, irrespective of the degree of fullness of the container.
  • the number carried by the label 72, located immediately below the projectiles 92 of the top set of cartridges 91 at any time, moved by the chains 65, 66, indicates to the operator how many sets of cartridges the container holds at the moment.
  • the same purpose is served by the labels 74 transported by the chain 65, the numbers of which can be read through the sight opening by a member of the gun crew situated further away from the container, for example by the gun commander.
  • An ammunition container in which sets of cartridges are arranged in layers movable along a straight-line path transverse of a layer, comprising two supporting elements for supporting the lower set of cartridges, driving means connected to one of said supporting elements, an endless chain connecting both supporting elements movably together, two sprocket Wheels over which said chain is guided, an adjustable tensioning roller for tensioning one run of said chain, said chain driving the other of said supporting elements and a second adjustable tensioning roller for tensioning the other run of said chain so that the angular relationship of said two chain sprockets is adjustable by shifting said two tensioning rollers in the same direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chain Conveyers (AREA)
  • Specific Conveyance Elements (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
US568429A 1965-07-30 1966-07-28 Ammunition container with cartridge lift mechanism having a chain drive with two adjustable tensioning rollers Expired - Lifetime US3359859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1077065A CH441051A (de) 1965-07-30 1965-07-30 Munitionsbehälter

Publications (1)

Publication Number Publication Date
US3359859A true US3359859A (en) 1967-12-26

Family

ID=4366668

Family Applications (1)

Application Number Title Priority Date Filing Date
US568429A Expired - Lifetime US3359859A (en) 1965-07-30 1966-07-28 Ammunition container with cartridge lift mechanism having a chain drive with two adjustable tensioning rollers

Country Status (7)

Country Link
US (1) US3359859A (ja)
JP (1) JPS511960B1 (ja)
AT (1) AT265074B (ja)
BE (1) BE684468A (ja)
CH (1) CH441051A (ja)
DE (1) DE1578403C3 (ja)
GB (1) GB1147220A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438676A (en) * 1981-06-02 1984-03-27 Kuka Webrtechnik GmbH Ammunition container
CN106370049A (zh) * 2016-09-14 2017-02-01 四川省绵阳西南自动化研究所 一种枪弹自动上弹链装置
US10935336B2 (en) 2016-06-21 2021-03-02 Bae Systems Bofors Ab System and method for the reversible transfer of ammunition between a primary magazine and a secondary magazine in an automatic cannon

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52160746U (ja) * 1976-06-01 1977-12-06
JPS54131282U (ja) * 1978-03-04 1979-09-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494728A (en) * 1945-12-26 1950-01-17 United Shoe Machinery Corp Ammunition feeder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494728A (en) * 1945-12-26 1950-01-17 United Shoe Machinery Corp Ammunition feeder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438676A (en) * 1981-06-02 1984-03-27 Kuka Webrtechnik GmbH Ammunition container
US10935336B2 (en) 2016-06-21 2021-03-02 Bae Systems Bofors Ab System and method for the reversible transfer of ammunition between a primary magazine and a secondary magazine in an automatic cannon
CN106370049A (zh) * 2016-09-14 2017-02-01 四川省绵阳西南自动化研究所 一种枪弹自动上弹链装置
CN106370049B (zh) * 2016-09-14 2017-10-03 四川省绵阳西南自动化研究所 一种枪弹自动上弹链装置

Also Published As

Publication number Publication date
BE684468A (ja) 1967-01-03
DE1578403B2 (de) 1973-08-23
DE1578403C3 (de) 1974-03-14
DE1578403A1 (de) 1970-11-12
AT265074B (de) 1968-09-25
JPS511960B1 (ja) 1976-01-21
CH441051A (de) 1967-07-31
GB1147220A (en) 1969-04-02

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