US3805668A - Apparatus for the multi-stage, hydraulic-mechanical braking of the forward movement of a displaceable barrel of an automatic firing weapon - Google Patents

Apparatus for the multi-stage, hydraulic-mechanical braking of the forward movement of a displaceable barrel of an automatic firing weapon Download PDF

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Publication number
US3805668A
US3805668A US00323336A US32333673A US3805668A US 3805668 A US3805668 A US 3805668A US 00323336 A US00323336 A US 00323336A US 32333673 A US32333673 A US 32333673A US 3805668 A US3805668 A US 3805668A
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US
United States
Prior art keywords
ring member
slot
brake piston
forward movement
displaceable
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
US00323336A
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English (en)
Inventor
J Zellweger
E Hurlemann
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle 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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Application granted granted Critical
Publication of US3805668A publication Critical patent/US3805668A/en
Anticipated expiration legal-status Critical
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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/02—Fluid-operated systems
    • 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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/06—Friction-operated systems
    • 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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/10—Spring-operated systems
    • 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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/16—Hybrid systems
    • F41A25/18—Hydroelastic systems

Definitions

  • ABSTRACT An apparatus for the multi-stage, hydraulicmechanical braking of the forward movement of a displaceable barrel or tube of an automatic firing weapon comprising a hydraulic brake having a cylinder, a brake piston equipped with check valves arranged in said cylinder, a mechanical brake connected in series with said hydraulic brake, said mechanical brake having a set of springs. During a first portion of the forward movement of the barrel of the firing weapon the check valves are open.
  • a ring member is provided which is displaceable out of a work position into a rest position by the piston and there are also provided stop means for limiting the stroke of such ring member.
  • a spring is provided which strives to retain the ring member in its work position, in which position it closes the check valves of the brake piston as soon as it cornes to bear during a second portion of the forward movement of the barrel of the firing weapon against the brake piston.
  • the set of springs is arranged in the cylinder and the ring member is located between the brake piston and the set of springs for transmitting the forward moving forces to the set of springs during a third portion of the forward movement of the barrel of the firing weapon past the starting position.
  • the present invention relates to a new and improved apparatus for the multi-stage, hydraulic-mechanical braking of the forward or advancing movement of a displaceable barrel or tube member of an automatic firing weapon equipped withy a hydraulic brake having a cylinder in which there is arranged a brake piston equipped with check or non-return valves, and a mechanical brake is connected in series with the hydraulic brake, the mechanical brake having a set of springs.
  • Another object of the invention relates to an improved apparatus for the multi-stage, hydraulicmechanical braking of the forward movement of a displaceable barrel or tube member of an automatic firing weapon, which apparatus is as structurally compact as reasonably possible and can be easily exchanged as unit at the weapon.
  • the inventive apparatus is manifested by the features that the check valves are open during a first portion of the forward movement of the barrel of the firing weapon, that a ring member is arranged to be displaceable out of its work position into a rest position by the piston. Stop means serve to limit the stroke of such ring member and there is provided a spring which strives to retain the ring member in its work position where it closes the check valves of the brake piston as soon as it comes to bear against the brake piston during a second portion of the forward movement of the barrel of the firing weapon.
  • the set of springs is arranged in the cylinder and the ring member is located between the brake piston and the set of springs for transmitting the forces of the forward movement to the set of springs during a third portion of the forwardI movement of the barrel of the firing weapon past the starting position.
  • FIG. 1 is a longitudinal sectional view through a preferred constructional embodiment of the invention:
  • FIG. 2 illustrates on an enlarged scale details of the apparatus depicted in FIG. l:
  • FIG. 3 is a fragmentary view showing a detail of the arrangement of FIGS. l and 2.
  • a helical spring 17 which strives to displace the sleeve member 14 away from the closure plug 16.
  • the sleeve member 14 together with the spring 17 serves to produce a pressure upon a suitable fluid medium, typically oil, located in the piston rod 12, and this oil can flow through a throttle bore 18 into the annular compartment between the cylinder or housing 10 and the piston rod 12.
  • the cylinder 10 furthermore possesses a tloor or bottom portion 19 and is closed by a cover member 20.
  • the piston rod 12 is sealingly guided both in the floor portion 19 as well as at the cover member 20. Between the cover member 20 and the piston 13 the piston rod 12 thereof is surrounded by a recoil spring 2l.
  • the piston 13 possesses a number of bores 22, the ends 23 of which always have a smaller diameter than the remaining portion of such bores 22.
  • These bores 22 can be closed by a ring member 24.
  • a helical spring 26 this spring 26 strives to displace the ring member 24 against the piston 13 and therefore to close the bores 22.
  • the ring member 24 forms a valve plate for the check or nonreturn valves formed by the components 22-24 which only permit the oil to flow in known manner in one direction through the bores 22.
  • These bores 22 can be closed at their other end by a further ring member 27.
  • This ring member 27 is likewise displaceably mounted upon the piston rod l2.
  • a spring 28 strives to press the ring member 27 against the piston 13.
  • the spring 28 bears upon the ring member 27 and upon a sleeve member 29 which likewise is displaceably arranged at the piston rod 22.
  • This sleeve member 29 possesses a flange 30 upon which bears a set of annular or circular springs 3l. This set or bank of annular springs 3l bears against the floor or bottom 19 of the cylinder or housing l0.
  • the sleeve member 29 which is displaceably arranged upon the piston rod l2 is displaceably guided by means of its flange 30 in the cylinder l0.
  • a sleeve member 32 is arranged between the cylinder or housing 10 and the piston 13, and such sleeve member 32 is secured against displacement in the cylinder 10.
  • This sleeve member 32 possesses a slot 33, as best seen by referring to FIG. 3.
  • This slot 33 renders it possible that, during displacement of the piston 13 and the housing l0, the oil can flow from one side of the piston 13 to the other side thereof.
  • the shape of the slot 33 is chosen such that the recoil force generated during firing of the weapon will be transmitted as constant force to the stationary gun mount.
  • the ring member 27 possesses a cam or dog 34 which extends into a slot 35 to the sleeve member 32, so that the ring member 27 is only displaceable to a limited extent in the sleeve member 32 until the cam 34 contacts a stop 36 which is formed by the slot 35.
  • This recoil spring 2l strives to again displace the weapon back into its starting position.
  • the ring member 27, during recoil of the weapon also has shifted upwards until reaching its stop 36. Since the ring member 27 cannot be displaced upwards to the same extent as the piston 13 it will be recognized that during the recoil action an intermediate compartment or space has been formed between the piston 13 and the ring member 27, and through which intermediate compartment there can flow the fluid medium into the bores 22. As soon as the piston 13 again moves downwards i.e.
  • the ring member 24 is raised owing to the pressure of the fluid medium in the bores 22, and the fluid medium can flow back through the bores 22 during a first stage of the forward movement of the piston into the annular compartment 50 above the piston 13 to the other side thereof.
  • the bores 22 are closed, and the fluid medium during a second stage can only then flow back through the narrower portion of the slot 33 from the lower face of the piston 13 to the upper face thereof.
  • An apparatus for the multi-stage, hydraulicmechanical braking of the forward movement of a displaceable barrel member of an automatic firing weapon comprising a hydraulic brake incorporating a cylinder, a brake piston equipped with check valves arranged in said cylinder, a mechanical brake connected in series with the hydraulic brake, said mechanical brake being equipped with a set of springs, said check valves being opened during a first portion of the forward movement of the barrel member of the firing weapon, a displaceable ring member capable of moving between a working position and a rest position, said displaceable ring member being displaceable out of the working position into a rest position in depending upon the movement of the piston, stop means for limiting the stroke of the displaceable ring member, a spring member which strives to retain the displaceable ring member in its working position where said displaceable ring member closes the check valves of the brake piston as soon as it comes to bear during a second portion of the forward movement of the barrel member of the weapon against the brake piston, said set of springs being arranged in said cylinder
  • An apparatus for the two-stage hydraulic braking of the forward movement of a displaceable barrel member of an automatic firing weapon comprising a hydraulic brake incorporating a stationary cylinder, a brake piston arranged in said cylinder, said brake piston having two faces and being equipped with check valve means, said check valve means being opened during a first stage of the forward movement of the brake piston, a displaceable ring member arranged within said cylinder, said displaceable ring member being provided with a cam, means defining a tirst slot having opposed ends, said cam extending into said first slot, the opposed ends of said tirst slot defining stops for limiting the stroke of said displaceable ring member, a spring striving to press the displaceable ring member towards one of the stops and in which position the displaceable ring member closes the check valve means as soon as the brake piston during its forward movement during the start of a second stage of the forward movement of the brake piston impacts against the ring member, means defining a second slot by means of which fluid medium can flow from one face of the brake

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Braking Arrangements (AREA)
US00323336A 1972-01-18 1973-01-12 Apparatus for the multi-stage, hydraulic-mechanical braking of the forward movement of a displaceable barrel of an automatic firing weapon Expired - Lifetime US3805668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH74072A CH550373A (de) 1972-01-18 1972-01-18 Einrichtung zur mehrstufigen, hydraulisch-mechanischen abbremsung der vorlaufbewegung des verschiebbaren rohres einer selbsttaetigen feuerwaffe.

Publications (1)

Publication Number Publication Date
US3805668A true US3805668A (en) 1974-04-23

Family

ID=4194097

Family Applications (1)

Application Number Title Priority Date Filing Date
US00323336A Expired - Lifetime US3805668A (en) 1972-01-18 1973-01-12 Apparatus for the multi-stage, hydraulic-mechanical braking of the forward movement of a displaceable barrel of an automatic firing weapon

Country Status (9)

Country Link
US (1) US3805668A (de)
JP (1) JPS5436440B2 (de)
CH (1) CH550373A (de)
DE (1) DE2300909B2 (de)
FR (1) FR2168412B1 (de)
GB (1) GB1371878A (de)
IL (1) IL41334A (de)
IT (1) IT978190B (de)
SE (1) SE386260B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635530A (en) * 1982-11-30 1987-01-13 Heckler & Koch Gmbh Automatic hand firearm with rigidly locked breech for ammunition with extremely high projectile momentum
US20080110074A1 (en) * 2006-11-15 2008-05-15 Endine, Inc. Hydraulic recoil buffer assembly
CN110594341A (zh) * 2019-09-23 2019-12-20 安徽誉林汽车部件有限公司 一种汽车悬架用筒式减震器
USRE48062E1 (en) * 2017-06-13 2020-06-23 Michael Noyce Merino Firearm with gas-assist recoil operation system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600261A1 (de) * 1976-01-07 1977-07-14 Rheinmetall Gmbh Huelsenfederelement mit hydraulischer daempfung
DE3015097C2 (de) * 1980-04-19 1984-12-20 Rheinmetall GmbH, 4000 Düsseldorf Hydropneumatische Vorrichtung zum Bremsen und Vorholen eines Geschützrohres
DE3015102C2 (de) * 1980-04-19 1984-11-08 Rheinmetall GmbH, 4000 Düsseldorf Waffenvorlaufdämpfer für eine Maschinenkanone mit Keilverschluß
DE3503318A1 (de) * 1985-01-31 1986-08-14 ACE Stoßdämpfer GmbH, 4018 Langenfeld Hydraulischer rueckschlagdaempfer
DE102011101653A1 (de) * 2011-05-16 2012-11-22 Rheinmetall Waffe Munition Gmbh Handbetätigbare oder automatische Schusswaffe
RU2537353C1 (ru) * 2013-07-23 2015-01-10 Александр Алексеевич Семенов Телескопический гидравлический амортизатор сау

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744514A (en) * 1928-08-28 1930-01-21 Clarance W Thompson Hydraulic valve
US3512449A (en) * 1965-09-29 1970-05-19 Stoner Eugene Accelerator for the bolt carrier of an automatic gun

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU31979A1 (de) * 1953-01-26
FR2088644A5 (de) * 1970-04-20 1972-01-07 Peugeot & Renault

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744514A (en) * 1928-08-28 1930-01-21 Clarance W Thompson Hydraulic valve
US3512449A (en) * 1965-09-29 1970-05-19 Stoner Eugene Accelerator for the bolt carrier of an automatic gun

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635530A (en) * 1982-11-30 1987-01-13 Heckler & Koch Gmbh Automatic hand firearm with rigidly locked breech for ammunition with extremely high projectile momentum
US20080110074A1 (en) * 2006-11-15 2008-05-15 Endine, Inc. Hydraulic recoil buffer assembly
US7681351B2 (en) * 2006-11-15 2010-03-23 Enidine, Inc. Hydraulic recoil buffer assembly
USRE48062E1 (en) * 2017-06-13 2020-06-23 Michael Noyce Merino Firearm with gas-assist recoil operation system
CN110594341A (zh) * 2019-09-23 2019-12-20 安徽誉林汽车部件有限公司 一种汽车悬架用筒式减震器
CN110594341B (zh) * 2019-09-23 2021-06-18 安徽誉林汽车部件有限公司 一种汽车悬架用筒式减震器

Also Published As

Publication number Publication date
DE2300909A1 (de) 1973-07-26
FR2168412B1 (de) 1976-08-27
IT978190B (it) 1974-09-20
CH550373A (de) 1974-06-14
IL41334A (en) 1976-03-31
GB1371878A (en) 1974-10-30
DE2300909B2 (de) 1976-11-04
JPS5436440B2 (de) 1979-11-09
JPS4882700A (de) 1973-11-05
FR2168412A1 (de) 1973-08-31
IL41334A0 (en) 1973-04-30
SE386260B (sv) 1976-08-02

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