EP0156590A1 - Dispositif de guidage pour le verrou manoeuvré par un levier, d'armes à feu - Google Patents

Dispositif de guidage pour le verrou manoeuvré par un levier, d'armes à feu Download PDF

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Publication number
EP0156590A1
EP0156590A1 EP85301739A EP85301739A EP0156590A1 EP 0156590 A1 EP0156590 A1 EP 0156590A1 EP 85301739 A EP85301739 A EP 85301739A EP 85301739 A EP85301739 A EP 85301739A EP 0156590 A1 EP0156590 A1 EP 0156590A1
Authority
EP
European Patent Office
Prior art keywords
lock
roller
guide
guide device
cylindrical
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.)
Withdrawn
Application number
EP85301739A
Other languages
German (de)
English (en)
Inventor
Kari Kuparinen
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.)
Sako-Tikka Oy AB
Original Assignee
Sako-Tikka Oy AB
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 Sako-Tikka Oy AB filed Critical Sako-Tikka Oy AB
Publication of EP0156590A1 publication Critical patent/EP0156590A1/fr
Withdrawn legal-status Critical Current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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings

Definitions

  • the present invention relates to a guide device for the lock of a crank-locked firearm, wherein a guide surface has been machined on the surface of the lock, the main shape of which is cylindrical, the guiding of the lock being effected by the guide surface in conjunction with a guide piece in the frame of the lock.
  • the object of the present invention is to eliminate these problems and to provide improved sensitivity of the lock movement, at the same time facilitating the seeking of the correct initial position for the lock.
  • the guide device is characterized in that the guide piece in the frame of the lock comprises a roller attached by bearings on a shaft transverse to the axial direction of the lock, the circumferential shape of the roller corresponding to the guide surface machined on the surface of the lock.
  • the roller has a cylindrical shape and the guide surface in the lock is respectively a flat segment surface.
  • the machining of such a surface, as well as the manufacture of the roller, is very inexpensive, and the movement of the lock is very smooth.
  • Figure 1 depicts diagrammatically, and partly in section, a firearm the lock of which is provided with a guide device according to the invention
  • Figures 2a, b and c depict alternative shapes of the guide roller.
  • the frame of the lock of the firearm is indicated by reference numeral 1.
  • the lock 2 of the firearm moves axially in the frame.
  • the shoulders are not shown in the drawing.
  • the rear part of the lock is not shown.
  • a roller 3 the shaft of which is transverse in relation to the lock 2.
  • the roller 3 rests against a corresponding guide surface 5 in the lock 2; in Figure 1 it is a flat segment surface.
  • a notch 6 which allows the lock 2 to be turned without being hindered by the roller 3 when the lock has been pushed in so far that the notch 6 is in alignment with the roller 3.
  • Figure 2 shows a few different shapes of the guiding roller.
  • the outer surface of the roller 3 is somewhat convex, and the guide surface in the lock 2 is respectively concave.
  • Figure 2b corresponds to Figure 1, the guide roller 3 being cylindrical.
  • Figure 2c depicts a guide roller 3 which is otherwise cylindrical but is provided in the middle with a ring-like protrusion, there being a corresponding groove in the guide surface of the lock.
  • the shaft 4 of the roller can be placed obliquely on the side of the lock 2 below the center line, as shown in the drawing.
  • the bearing of the roller 3 is a slide bearing, but it is clear that it can also be implemented as a roller bearing. It is also clear that it is possible to consider other embodiments of the guide roller, deviating from the figure, without deviating from the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Building Environments (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Lock And Its Accessories (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Glass Compositions (AREA)
EP85301739A 1984-03-14 1985-03-13 Dispositif de guidage pour le verrou manoeuvré par un levier, d'armes à feu Withdrawn EP0156590A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI841026A FI69361C (fi) 1984-03-14 1984-03-14 Laosstyrningsanordning foer ett vapen med vredlaos
FI841026 1984-03-14

Publications (1)

Publication Number Publication Date
EP0156590A1 true EP0156590A1 (fr) 1985-10-02

Family

ID=8518730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85301739A Withdrawn EP0156590A1 (fr) 1984-03-14 1985-03-13 Dispositif de guidage pour le verrou manoeuvré par un levier, d'armes à feu

Country Status (5)

Country Link
EP (1) EP0156590A1 (fr)
JP (1) JPS60216196A (fr)
DK (1) DK108385A (fr)
FI (1) FI69361C (fr)
NO (1) NO155592C (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR321138A (fr) * 1902-04-11 1902-12-30 Winchester Repeating Arms Co Perfectionnements apportés aux armes à feu automatiques de petit calibre
GB166851A (en) * 1920-05-20 1921-07-28 John Taliaferro Thompson Improvements in small arms and machine guns
US1754943A (en) * 1926-12-04 1930-04-15 Hammar Victor Field gun with tube recoil
US3156153A (en) * 1963-10-16 1964-11-10 John L Lochhead Roller bearing mounted barrel for a machine gun
US3636648A (en) * 1970-03-10 1972-01-25 William J Spencer Bearing means for a bolt action of a gun
US3653140A (en) * 1970-05-04 1972-04-04 Remington Arms Co Inc Firearm receiver mechanism with a roller detent pin for a telescopic breech-bolt
US3742638A (en) * 1970-07-17 1973-07-03 J Archer Bolt action assembly
EP0115034A1 (fr) * 1982-12-30 1984-08-08 Horst Blaser Jagdwaffenfabrik Fusil à canon remplaçable

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR321138A (fr) * 1902-04-11 1902-12-30 Winchester Repeating Arms Co Perfectionnements apportés aux armes à feu automatiques de petit calibre
GB166851A (en) * 1920-05-20 1921-07-28 John Taliaferro Thompson Improvements in small arms and machine guns
US1754943A (en) * 1926-12-04 1930-04-15 Hammar Victor Field gun with tube recoil
US3156153A (en) * 1963-10-16 1964-11-10 John L Lochhead Roller bearing mounted barrel for a machine gun
US3636648A (en) * 1970-03-10 1972-01-25 William J Spencer Bearing means for a bolt action of a gun
US3653140A (en) * 1970-05-04 1972-04-04 Remington Arms Co Inc Firearm receiver mechanism with a roller detent pin for a telescopic breech-bolt
US3742638A (en) * 1970-07-17 1973-07-03 J Archer Bolt action assembly
EP0115034A1 (fr) * 1982-12-30 1984-08-08 Horst Blaser Jagdwaffenfabrik Fusil à canon remplaçable

Also Published As

Publication number Publication date
FI69361C (fi) 1986-01-10
FI841026A (fi) 1985-09-15
NO155592B (no) 1987-01-12
DK108385D0 (da) 1985-03-08
FI69361B (fi) 1985-09-30
FI841026A0 (fi) 1984-03-14
JPS60216196A (ja) 1985-10-29
NO155592C (no) 1987-04-22
NO851002L (no) 1985-09-16
DK108385A (da) 1985-09-15

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

17P Request for examination filed

Effective date: 19860307

17Q First examination report despatched

Effective date: 19870624

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19871105

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KUPARINEN, KARI