Europaisches Patentamt
European Patent Office
Office еигорёеп des brevets
IHIIIIIIIIIIIIIIIIIIIIIIIIOIII
(и) Publication number: 0 277 922 B1
.12
EUROPEAN PATENT SPECIFICATION
@ Date of publication of patent specification :	@ Int. Cl.5: F41A 19/00
27.11.91 Bulletin 91/48
@ Application number: 88830027.4
(22) Date of filing : 21.01.88
(S) Monotrigger mechanism for trapshooting guns.
@ Priority : 03.02.87 IT 511687
@ Date of publication of application :
10.08.88 Bulletin 88/32
(73) Proprietor: FABBRICA D’ARMI P.BERETTA
S.p.A.
10, Via P. Beretta
I-25063 Gardone V.T. (Brescia) (IT)
(45) Publication of the grant of the patent:
27.11.91 Bulletin 91/48
(72) Inventor: Beretta, Pier Giuseppe
18, Via P.Beretta
I-25063 Gardone V.T.(Brescia) (IT)
@ Designated Contracting States :
AT BE CH DE ES FR GB GR LI LU NL SE
@ References cited :
EP-A- 0 078 867
DE-A- 2 004 186
FR-A- 1 432 897
FR-A- 1 519 013
FR-A- 2 070 572
GB-A- 2 179 723
JP-A-61 190 296
US-A- 3 421 243
@) Representative : Manzoni, Alessandro
MANZONI & MANZONI - UFFICIO
INTERN AZION ALE BREVETTI P.le Arnaldo n.
2
1-25121 Brescia (IT)
ЕР 0 277 922 В1
Note: Within nine months from the publication of the mention of the grant of the European patent, any
person may give notice to the European Patent Office of opposition to the European patent granted.
Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been
filed until the opposition fee has been paid (Art. 99(1) European patent convention).
Jouve, 18, rue Saint-Denis, 75001 PARIS
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ЕР 0 277 922 В1
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Description
The present invention relates to trapshooting
guns in general and, more particularly, to a mono-
trigger mechanism for guns in which the hammers,
their springs, levers, trigger and other members are all
premounted on an underguard of the gun.
In the field of double-barrelled trapshooting guns
and hunting guns with the barrels positoned either
side by side or one over the other, there are several
types of trigger mechanisms which are already
known. These mechanisms generally comprise a pair
of hammers corresponding to the two barrels of the
gun and a single trigger for controlling the successive
disengagement of the two hammers. Each conven-
tional trigger mechanism has its own characteristic
features and its members can be directly inserted
inside the breech of the gun as illustrated, for
example, by the documents FR-A-2,070,572 ; FR-A-
1,432,897; US-A-3,421,243 ; GB-A-2,179,723 ; or
they can be placed on an underguard which is applic-
able to the lower portion of the breech of the gun, in
correspondence with a suitable opening or slit as illus-
trated, for example, by the documents FR-A-
1,519,013 ; EP-A-0,078,867 and DE-A-2,004,186.
This allows for the assembling and disassembling
of the trigger mechanism as a unit.
To be more precise, a monotrigger mechanism
for doubled-barrelled guns, particularly trapshooting
guns, is shown in the documents FR-A-1,519,013 and
EP-A-0,078,867. This monotrigger mechanism com-
prises an underguard having means for the coupling
to and detaching from the breech of the gun ; two
hammers pivoted on said underguard, each of which
urged by a spring and coordinated with a firing pin cor-
responding to the two barrels ; a pair of oscillating lev-
ers pivoted on said underguard and each designed to
arrest a respective hammer in the cocked position,
and a trigger pivoting on said underguard and rear-
wardly attached to a pendular mass for the separate
control of the displacement of, firstly, one oscillating
lever and then the other oscillating lever so as to dis-
engage the two hammers according to a predeter-
mined sequence, said pendular mass having a pair of
shoulders diversely positioned for engaging at subse-
quent times said oscillating levers, following a first
and second action of said trigger.
In such a realization, however, the trigger is in a
fixed position.
The document US-A-4,667,429 also discloses a
longitudinally adjustable trigger, but without specify-
ing its application to a particular trigger mechanism.
This adjustable trigger comprises supporting means
pivotably attached to the body of the gun ; a plurality
of arresting notches longitudinally positioned in said
supporting means; and a spring loaded arresting ele-
ment in said trigger, longitudinally displaceable along
said supporting means and selectively engageable
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with said arresting notches.
The arresting element can be of various shapes,
but has a grip which allows for manual manoeuvring
and which is always on the outside of the trigger and
therefore does not exclude the possibility that it could
come into contact with parts which could cause unde-
sired releasings and possible tamperings of the
trigger.
An object of the present invention is to supply a
monotrigger mechanism in accordance with the docu-
ments FR-A-1,519,013 and EP-A-0,078,867, but hav-
ing an adjustable trigger for a more suitable use of the
mechanism.
Another object of the invention is to supply a
monotrigger mechanism with an adjustable trigger
where the arresting element is protected inside the
body of the trigger and is only and purposely access-
ible with a rod. In this way there is the advantage of
assuring the correct blocking of the trigger in each
position of use without the possibility of involuntary,
undesired or tampered movements.
Said objects are achieved with a monotrigger
mechanism which is in accordance with claim 1
whereby the state of the art is described by the above
mentioned documents FR-A-1,519,013 ; EP-A-
0,078,867 and US-A-4,667,429.
Greater details of the invention will become more
evident from the following detailed embodiments
thereof, with reference to the accompanying draw-
ings, in which :
Figure 1 is a partial, sectional view of the trigger
mechanism with elements in the rest position ;
Figure 2 is an analogous view of the trigger
mechanism with the hammers in cocked position;
Figure 3 is a view analogous to figure 2, showing
the right hammer in phase of disengagement;
Figure 4 is a partial, sectional view of the condi-
tion of engagement of the left hammer (after the
disengagement of the right hammer);
Figure 5 is a view analogous to figure 4, showing
the left hammer in phase of disengagement; and
Figure 6 is a sectional view of the trigger and of
the engagement means of the trigger mechanism
in the breech.
With reference now to the accompanying draw-
ings, numeral 10 represents, in general, the breech of
the gun. In the breech, there is mounted a trigger
mechanism 11, the member elements of which are
premounted on an underguard 12, which is in turn
applicable to the lower portion of the breech. In the
upper portion of the breech, instead, there is mounted
a safety sled 13 that has an arresting or blocking por-
tion 13' facing toward the trigger mechanism and
intended to prevent, when in the position of safety, the
functioning or operation of the trigger mechanism
itself.
The trigger mechanism 11 comprises two ham-
mers 14-15, that is, a right one (14) and a left one (15).
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Both hammers are pivoting on the underguard 12 and
are intended to act against the firing pins 16-17, cor-
responding to the two barrels (positioned side by side
or one over the other) of the gun (not shown in the
drawings).
Hammer 14 is urged by a cross-bow spring 18
and is engaged in cocked position by a spring-loaded
lever 19. Lever 19 is oscillatingly mounted on a pin 20'
attached to the underguard 12 and having, on one
side, a tooth 19' for interaction with the hammer 14,
and, on the other side, a beak 19" faced toward the
rear. Similarly, hammer 15 is urged by a cross-bow
spring 20 and is engaged in cocked position by a
spring-loaded lever 21. Lever 21 is also mounted on
the pin 20' and has a tooth 21' interacting with the
hammer 15 and a rear beak 21".
The displacement of the hammers 14-15 in
cocked position is determined by the corresponding
levers 14'-15', controlled, in manner known perse, by
the opening of the barrels. Conversely, the disen-
gagement of the hammers for firing is controlled by a
single trigger 22, pivoting at 20' on the underguard 12
and intended to act, firstly, on the lever 19 of the right
hammer 14 and, subsequently, on the lever 21 of the
left hammer 15, through a pendular mass 24 posi-
tioned behind the levers 19-21. The pendular mass 24
is pivoting underneath, at 25, on the trigger 22 and is
urged by a spring 26 which keeps the mass normally
displaced toward the rear beaks 19"-21" of the levers
19-21. The pendular mass is provided, furthermore,
with a pair of shoulders 27-28 so positioned as to
interact, at subsequent times, the first with the rear
beak 19" of the lever 19 of the right hammer 14, and
the second with the rear beak 21" of the lever 21 of
the left hammer 15, for the disengagement of the ham-
mers, in accordance with the sequence described
hereabove.
In fact starting from the cocked position illus-
trated in figure 2 of the drawings, to a first activation
of the trigger 22 (see arrow E in figure 3) corresponds
the rising of the pendular mass 24 with consequent
displacement of the lever 19 and the disengagement
of the right hammer 14 for the firing of a shell in one
barrel. The recoil and counterrecoil action which fol-
lows determines the detachment of the shoulder 27 of
the pendular mass 24 from the beak 19" of the lever
19. This, then, allows the pendular mass 24 to
interact, through the other shoulder member 28, with
the beak 21" of the other lever 21, as soon as the
trigger 22 is released after the firing of the first shell.
One has, thusly, the condition illustrated in figure
4. Starting from this condition, it is possible to disen-
gage the left hammer 15, in order to fire the shell in
the other barrel of the gun. This is done by acting
again on the trigger, as indicated by arrow F' in figure
5.
Advantageously, trigger 22 of the trigger mechan-
ism 11 is position-controlled and, for this purpose, it
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is coupled with a lever support 31 that constitutes that
portion of the trigger which pivots, at 20', on the under-
guar. The underguard carries at its rear the pendular
mass 24 and extends upperiy with an appendix 32
intended to cooperate with the arresting portion 13' of
the safety sled 13 mounted in the breech 10, in the
setting of the gun in the position of safety.
More precisely, as clearly shown in figure 6, the
trigger 22 is provided in its upper part with a guide seat
33, shaped as the tail of a swallow, or as a T or the
like,. Guide seat 33 is intended to mate with a corre-
sponding guide portion 34 longitudinally provided in
the lower part of the support 31. In the upper portion
of the trigger 22, there is also provided a cavity 35
open toward the support and toward the rear of the
trigger proper. In this cavity 35, there is displaceably
mounted an arresting or blocking latch 36, which has,
in its upper part, a wedge-like tooth 37 and, in its rear
part, a maneuver member portion 38. The blocking
latch 36 is, further, provided with a peg or stem 39,
guided into an opening 40 provided in the trigger 22
at the base of the cavity 35.
The wedge-like tooth 37 of the blocking latch 36
is facing toward and cooperates selectively with any
of a plurality of arresting notches 41 provided on the
lower surface of the support 31. The notches are
spaced one from another longitudinally along the sup-
port 31, each having a shape corresponding to and
opposite to the wedge-like shape of the tooth 37 of the
blocking latch 36. The maneuver member portion 38
of the blocking latch 36 protrudes from the rear open-
ing of the cavity 35 of the trigger 22 and is provided
with a transverse aperture 38', into which a small rod
or equivalent member may be inserted for controlling
the latch.
The latch 36 is urged by a spring 42, for example
a torque spring, mounted on a spine 43 and having a
first terminal 42' attached to the latch 36 and a second
terminal 42” blocked between the upper surface of the
trigger and the base of the support 31.
The spring 42 is preloaded, in order to keep the
blocking latch normally displaced toward the support
31. The tooth 37 is engaged with one of the arresting
notches 41. In order to change the position of the
trigger, it is therefore sufficient to insert the small rod
in the opening 38' of the maneuver member portion 38
of the blocking latch 36, so as to displace the latter to
a point where its tooth is disengaged from the notch
in which it was positioned. This allows, then, the dis-
placement of the trigger with respect to the support
until the tooth is carried to engage another notch, thus
arriving at another position of the trigger with respect
to the previous, initial position.
To apply the trigger mechanism 11 to the breech
10, the underguard 12 is provided in the front thereof
with a tongue 12' which is intended to engage within
a complementary seat 10' provided in the breech
itself. At the rear, the underguard 12 is integral with a
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hook 54 which faces toward the interior of the breech
10, behind the trigger mechanism 11. The hook 54
has a bevelled head 54'.
In the breech 10, between the hook 54 and the
safety sled 13, there is provided an oscillating lever 55
mounted on an intermediate transverse pin 56. Lever
55 has, on one hand, a tooth 57 for engaging the hook
54 integral with the underguard 12 and, on the other
hand, a terminal 58 for interaction with a shoulder 59
provided at the base of the safety sled 13. The lever
55 is, furthermore, urged by a preloaded spring 60 act-
ing so as to keep its tooth 57 normally engaged with
the hook 54 and its terminal 58 displaced toward the
shoulder 59 of the safety sled 13.
In practice, the underguard 12, complete with the
trigger mechanism 11, is mounted on and attached to
the breech 10 by, firstly, engaging the front tongue 12'
in the complementary seat 10' and, subsequently,
pushing the mechanism in the breech until the hook
54 and the tooth 57 of the oscillating lever 55 are
reciprocally engaged. The coupling is aided by the
bevelled head 54' of the hook 54 and by the action of
the spring 60 acting on the lever 55 without the need
of any other operation.
The safety sled 13 is provided with a peg 61 that
interacts with a spring-loaded pusher 62, which has a
ramp 63 defining with the peg 61 the position of safety
and, furthermore, has an intermediate cavity 64 which
defines, again with the said peg 61, the position of fir-
ing, that is to say, the position of operation of the gun.
In the position of safety, the sled 13 is fully dis-
placed to the rear, so that its arresting portion 13'
interferes with the appendix 32 of the trigger 22, thus
preventing the operation or functioning of the trigger
mechanism 11. At the same time, the shoulder 59 is
moved away from the terminal 58 of the lever 55. In
the position of firing, the safety sled 13 is arrested in
an intermediate position due to the positioning of its
peg 51 in the cavity 64 of the spring-loaded pusher 62.
The shoulder 59 is, thus, adjacent to the terminal 58
of the lever 55, without however, altering the position
of the latter.
In either position, of safety or of firing, the sled 13
has, therefore, no influence whatever upon the oscil-
lating lever 55, so that the condition of engagement
and attachment of the trigger mechanism in the
breech 10 is not altered when one passes from one
condition to the other.
The safety sled 13 is, however, displaceable
manually toward the front and beyond the position of
firing, in order to disengage the trigger mechanism 11,
when it is necessary to remove it from the breech 10.
As a result of this displacement of the sled 13, the
shoulder 59 acts against the terminal 58 of the lever
55, displacing the latter in opposition to the action of
the spring 60. The tooth 57 of the lever 55 is, thus,
moved away and disengaged from the hook of the
underguard 12, in order to allow the removal of the
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trigger mechanism. When the manual operation has
ended, the spring 60 returns the lever 55 and, through
the lever, the safety sled 13 to the position of firng, or
to the position which allows the successive mounting
and blocking of the trigger mechanism.
Claims
1.	A monotrigger mechanism for double-barrelled
guns, particularly trapshooting guns, comprising an
underguard (12) having means for the coupling to and
detaching from the breech of the gun ; two hammers
(14, 15) pivoted on said underguard, each of which
urged by a spring (18,20) and coordinated with a firing
pin (16, 17) corresponding to the two barrels ; a pair
of oscillating levers (19, 21) pivoted on said under-
guard (12) and each designed to arrest a respective
hammer (14,15) in the cocked position, a trigger (22)
pivoted on said underguard (12) and rearwardly
attached to a pendular mass (24) for the separate
control of the displacement of, firstly, one oscillating
lever (19) and then the other oscillating lever (21), so
as to disengage the two hammers (14, 15) according
to a predetermined sequence, said pendular mass
(24) having a pair of shoulders (27,28) diversely posi-
tioned for engaging at subsequent times said oscillat-
ing levers, following a first and a second action of said
trigger, and wherein said trigger (22) is slidably coup-
led with a lever support (32) pivoting on said under-
guard and serving to act upon said oscillating levers
through said pendular mass ; said trigger (22) having
blocking latch (36) with a tooth (37) thereon engaging
selectively one of a plurality of complementary arrest-
ing notches (41) provided on said lever support (32)
and spaced from one another longitudinally along
said lever support, so as to define various positions of
use of said trigger, said blocking latch (36) being
urged by a biasing spring (42) for keeping said latch
in engaging position with said arresting notches,
whereby said blocking latch (36) is seated in a cavity
(35) provided in the upper part of said trigger and has
a maneuver portion (38) thereon, protruding from said
cavity and having an opening (38') for receiving a rod,
when said latch is to be displaced in opposition to said
preloaded spring (42) and trigger is to be adjusted in
the longitudinal direction.
2.	Monotrigger mechanism according to claim 1)
wherein the trigger comprises a guide seat (33) and
the lever support is formed with a guide portion (34)
which mates with the guide seat dove-tail fashion, the
biasing spring (42) being a tension spring which is
wound around a spine (43) provided in the trigger
cavity in preloaded condition with one end of the ten-
sion spring extending longitudinally trapped between
the guide seat and the trigger support and the other
end of the spring retained in the latch.
3.	Trigger mechanism, according to precedent
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claims, wherein said underguard (12) has frontally a
tongue (12) for engagement within a complementary
seat (10') provided in the breech of the gun, and, rear-
wardly, a hook (54) facing the interior of said breech;
and wherein in said breech threre is provided an oscil-
lating lever (55) having, on one side, a tooth (57)
interacting with said hook (54) for blocking and
unblocking the trigger mechanism in the breech and,
on the other side, a terminal (58) interacting with said
safety sled (13) for manually controlling the disen-
gagement and the unblocking of the trigger mechan-
ism ; the condition of engagement of the trigger
mechanism being insured by a spring (60) acting on
said oscillating lever (55).
4.	Trigger mechanism, according to claim 3, whe-
rein said hook (54) is integral with said undergard (12)
and has a bevelled head (54) interacting with said
oscillating lever (55) when the trigger mechanism is
inserted in the breech of the gun ; and wherein said
safety sled (13) has a shoulder (59) interacting with
said terminal (58) of said oscillating lever (55) to move
away the said tooth (37) from said hook (54) when
said safety sled is manually displaced to a position
other than the position of safaty of of firing.
Patentanspriiche
1.	EinzelabzugsvorrichtungfiirDoppelflinten, ins-
besondere zum TontaubenschieBen, mit einem
Abzugsbiigel (12), dermit Mitteln zurlSsbaren Befe-
stigung am Gewehrkolben versehen ist; mit zwei am
Abzusbiigel (12) drehbar gelagerten Hammern (14,
15) von denen jeder von einer Feder (18, 20) belastet
und einer den beiden Laufen entsprechenden Ziind-
nadel (16, 17) zugeordnet ist; mit einem Paar am
Abzugshebel (12) gelagerten Schwinghebeln (19,21)
zum arretieren des jeweils zugeordneten Hammers
(14,15) in gespannter Position, ein am Abzugsbiigel
(12) gelagerter Abzug (22), der riickseitig mit einer
Schwenkmasse (24) zur getrennten Betatigung erst
des Schwinghebels (19) und dann des Schwinghe-
bels(21) verbunden ist, um die zwei Hammer (14,15)
in einer vorbestimmten Reihenfolge auszuriicken,
wobei die Schwenkmasse (24) mit zwei verschieden
angesetzten Schultern (27, 28) versehen ist, um die
Schwinghebel nach einer ersten und einer zweiten
Betatigung des Abzugs nacheinander in Bewegung
zu setzen, wobei der Abzug (22) gleitend mit einer
Hebelhalterung (32) verbunden ist, die schwenkbar
auf den Abzugsbiigel (12) gelagert ist um auf die bei-
den Schwinghebel durch die Schwenkmasse (24) ein-
zuwirken ; der Abzug (22) weist dariiber hinaus einen
VerschluBriegel (36) auf, mit einem Zahn (37) der
wahlweise in eine der ihm zugeordneten Kerben (41),
die in Abstanden und langsweise auf der Hebelhalte-
rung (32) vorgesehen sind, eingreift, wodurch der
Abzug (22) verschiedentlich einstellbar ist, wobei auf
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den VerschluBriegel (36) eine vorgespannte Feder
(42) einwirkt, um den Riegel (36) standig mit den Ker-
ben (41) in Eingriff zu halten, dadurch gekennzeich-
net, daB der VerschluBriegel (36) in einer
Ausnehmung (35) im Oberteil des Abzugs sitzt und ei-
ne aus der Ausnehmung hervorstehende Steuerpor-
tion (38) mit einer Bohrung (38') zur Aufnahme einer
Spindel aufweist, um den Riegel (36) entgegen der
von der Feder (42) ausgeiibten Kraft zu verschieben
und den Abzug langsweise zu verstellen.
2.	Einzelabzugsvorrichtung nach Anspruch 1), in
der der Abzug einen Fiihrungssitz (33) aufweist und
die Hebelhalterung (32) mit einer Fiihrung (34) verse-
hen ist, die durch eine Schwalbenschwanzverbin-
dung in den Fiihrungssitz (33) eingreift, wobei die
vorgespannte Feder (42) eine um eine Spindel (43) in
der Ausnehmung (35) gewundene Spannfeder ist,
dessen sich langsweise erstreckendes Ende im vor-
gespannten Zustand zwischen dem Fiihrungssitz und
derAbzugsstuiitzefestgeklemmt ist, wahrend ihrent-
gegengesetztes Ende im VerschluBriegel festgehal-
ten ist.
3.	Abzugsvorrichtung nach den vorhergehenden
Anspriichen, in dem das vordere Ende des Abzug-
sbiigels (12) eine Zunge (12') aufweist, die in einen
komplementaren Sitz (10') im Gewehrkolben ein-
greift, wahrend sein hinteres Ende mit einem in den
Kolben gerichteten Haken (54) versehen ist; wobei in
dem genannten Kolben ein Schwinghebel (55) einge-
setzt ist, mit einem Zahn (57) an einem Ende, der mit
dem Haken (54) zusammenwirkt, um die Abzugsvor-
richtung losbar im Kolben festzuhalten, wahrend das
andere Ende des Schwinghebels (55) ein mit dem
Sicherheitsschieber (13) zusammenwirkendes End-
stuck (58) aufweist, das zur manuellen Betatigung der
Abzugsvorrichtung dient, wobei die jeweilige Stellung
der Abzugsvorrichtung durch eine auf den Schwing-
hebel (55) einwirkende (Feder) abgesichert ist.
4.	Abzugsvorrichtung nach Anspruch 3), in der
der Haken (54) im Abzugsbiigel (12) integriert ist und
einen abgeschragtes Kopfteil (54) aufweist, das mit
dem Schwinghebel (55) zusammenwirkt, wenn die
Abzugsvorrichtung in den Gewehrkolben eingezogen
ist; und in der der Sicherheitsschieber (13) eine
Schulter (59) aufweist, die mit dem Endstiick (58) des
Schwinghebels (55) zusammenwirkt, um den Zahn
(37) vom Haken (54) zu entfernen, sobaid der Sicher-
heitsschieber von Hand in eine Stellung gebracht ist,
die auBerhalb derzum AbschuB gesicherten Stellung
liegt.
Revendications
1.	Un m6canisme й monodetente pour fusils &
deux coups, en particulier pour le tir au pigeon
d’aigile, comprenant une sous-garde (12) ayantdes
moyens pour le couplage й et le d6tachement de la
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crosse du fusil; deux chiens (14, 15) pivotant sur la
sous-garde, chacun £tant sujet й un ressort (18, 20)
et coordonn6 й un percuteur (16,17) correspondent
aux deux canons; une paire de leviers oscillants (19,
21) pivot6s sur la sous-garde (12), chaquelevieretant
destine й arreter le chien respectif (14,15) en position
агтёе, une detente (22) pivo^e sur la sous-garde
(12), son extreme агпёге 6tant attach6e й une
masse pendulaire (24) pour la commande separee du
d^placement, en premier lieu, du levier oscillant (19)
etaprfes du deuxifeme levier oscillant (21), de manidre
й degager les deux chiens (14, 15) selon une
s6quence preetablie, la masse pendulaire susdite
(24) ayant une paire d’6paules (27, 28) diversement
positionnees pour engager en temps subs£quents les
leviers oscillants susdits, suivant une premiere et une
deuxi£me action de la d6tente susdite, et oil la
detente (22) est accouplee en glissant й un porte-le-
vier (32) pivotant sur la sous-garde susdite qui sert й
agir sur les leviers oscillants susdits au moyen de la
masse pendulaire susdite; la d6tente (22) 6tant
munie d’un verrou d’enclenchement (36) avec un dent
(37) pour s6lectivement engager une des encoches
comptementaires d’arret (41) pr6vues sur le porte-le-
vier (32) et longitudinalement espac^es le long du
porte-levier susdit, de manifere й d6finir plusieurs
positions d’emploi de la d6tente susdite, le verrou
d’enclenchement (36) 6tant sujet й I’action d’un res-
sort pr6contraint (42) pour maintenir le verrou susdit
en position d’engagement avec les encoches d’arret
(41), de fagon que le verrou d’enclenchement (36) est
р!асё dans une cavit6 (35) dans la partie sup6rieure
de la d6tente et est muni d’une portion manoeuvrable
(38), saillant de la cavit6 susdite et ayant une ouver-
ture (38') pour recevoir une tige quand le verrou susdit
est й d£placer en opposition au ressort precontraint
(42) et la d6tente est й ajuster en direction longitudi-
nale.
2.	M6canisme й monod6tente selon la revendica-
tion 1), dans lequel la detente comprend un si£ge de
guidage (33) et le porte-levier estfon-пё avec une por-
tion de guidage (34) assemble en queue d’aronde
avec le si£ge de guidage, le ressort pr6contraint (42)
6tant un ressort tendeur епгои1ё sur une goupille (43)
dans la cavit6 de la d6tente en condition pr6contrainte
avec une ехЬгётКё du ressort tendeur s^tendant lon-
gitudinalement et serree entre le si£ge de guidage et
le porte<tetente, tandis que I’autre extreme est rete-
nue dans le verrou (36).
3.	Мёсатвте й dёtente selon les revendications
prёcёdentes, dans lequel la sous-garde (12) susdite
pi^sente une langue avant (12) й engager dans un
si£ge comptementaire (10’) dans la crosse du fusil et
un crochet агпёге (54) tourne vers Пп1ёпеиг de la
crosse; et dans lequel un levier oscillant (55) est
топ1ё dans la crosse et muni, d’un сб1ё, d’un dent
(57) interagissant avec le crochet (54) pour bloquer et
dёЫoquer le тёсатвте й detente dans la crosse et,
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55
de I’autre сб1ё, une queue (58) interagissant avec le
coulisseau de вёсигИё (13) pour la commande
manuelle du dёgagement et du dёЫocage du meca-
nisme й dёtente; la condition d’engagement du
тёсап!зте й detente ё(ап( assuree par un ressort
(60) agissant sur le levier oscillant (55).
4.	МёсаШвте dёclencheur selon la revendica-
tion 3), dans lequel le crochet (54) est т1ёдга1 avec
la sous-garde (12) et presente une tete chanfreinee
(54) interagissant avec le levier oscillant (55) quand
le тёсатзте dёclencheur est insere dans la crosse
du fusil; et dans lequel le coulisseau de вёсигКё (13)
ргёвеп1е une ёраи!е (59) interagissant avec la queue
(58) susdite du levier oscillant (55) pour ё!о!дпег le
dent (37) du crochet (54) quand le coulisseau de
эёсигИё est manuellement dёplacё dans une position
hors de celle de вёсигИё pour le tir.
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ЕР 0 277 922 В1
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ЕР 0 277 922 В1
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ЕР 0 277 922 В1
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ЕР 0 277 922 В1
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ЕР 0 277 922 В1
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ЕР 0 277 922 В1
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