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EP 0 912 986 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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02.02.2000 Bulletin 2000/05 |
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Date of filing: 15.07.1997 |
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International application number: |
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PCT/EP9703/770 |
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International publication number: |
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WO 9802/897 (22.01.1998 Gazette 1998/03) |
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KINEMATIC DEVICE FOR ACTUATING THE MOVING CONTACT, PARTICULARLY FOR AUTOMATIC ELECTRIC
BREAKERS
KINEMATISCHE ANTRIEBSVORRICHTUNG FÜR DEN BEWEGBAREN SCHALTKONTAKT, INSBESONDERE FÜR
SCHUTZSCHALTER
DISPOSITIF CINEMATIQUE D'ACTIONNEMENT DU CONTACT MOBILE, NOTAMMENT DANS DES DISJONCTEURS
AUTOMATIQUES
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Designated Contracting States: |
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AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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Designated Extension States: |
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LT RO SI |
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Priority: |
15.07.1996 IT MI961462
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Date of publication of application: |
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06.05.1999 Bulletin 1999/18 |
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Proprietor: Gewiss S.P.A. |
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24069 Cenate Sotto (IT) |
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Inventors: |
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- BOSATELLI, Domenico
I-24069 Cenate Sotto (IT)
- CONTARDI, Augusto
I-21100 Varese (IT)
- PIANEZZOLA, Sergio
I-21100 Calcinate del Pesce (IT)
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Representative: Forattini, Amelia |
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c/o Internazionale Brevetti
Ingg. ZINI, MARANESI & C. S.r.l.
Piazza Castello 1 20121 Milano 20121 Milano (IT) |
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References cited: :
EP-A- 0 325 071 US-A- 2 889 428
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EP-A- 0 345 412 US-A- 3 671 908
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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).
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[0001] The present invention relates to an automatic electric breaker having a kinematic
device for actuating the moving contact.
[0002] Conventional automatic electric breakers use kinematic systems which allow to open
and close the moving contact both by actuating the actuation lever, which can be accessed
from outside the box-like casing which has the typical configuration for coupling
to the omega-shaped rail, and by virtue of the automatic intervention of the protection
devices provided internally.
[0003] In conventional kinematic systems, all the lever systems have such dimensions as
to occupy substantially all the space available inside the box-like body, so that
the masses involved are relatively large and therefore it is not easy to achieve very
fast opening of the moving contact, which would reduce all the problems related to
the electric arc which is generated.
[0004] Another drawback is constituted by the fact that the kinematic systems that are currently
used are generally very complicated from a structural point of view and require relatively
long assembly operations which affect production costs.
[0005] EP-A-0 345 412 discloses an automatic electric breaker of the above described type
and in accordance with the preamble of claim 1.
[0006] An aim of the present invention is indeed to eliminate the above described drawbacks
of the prior art. A further aim of the invention is to provide a kinematic system
for actuating the moving contact, particularly for automatic electric breakers, which
allows to significantly reduce the dimensions used, with consequent considerable advantages
as regards the opening speed of the moving contact.
[0007] An object of the invention is to provide a kinematic actuation system which can be
produced with a limited number of components that can be easily assembled together.
[0008] Further object of the present invention is to provide a kinematic system for actuating
the moving contact which, by virtue of its particular constructive characteristics,
is capable of giving the greatest assurances of reliability and safety in use.
[0009] Still a further object of the present invention is to provide a kinematic actuation
system which can be easily obtained starting from commonly commercially available
parts and materials and is also competitive from a purely economic point of view.
[0010] This aim, these objects and others which will become apparent hereinafter are achieved
by an automatic circuit breaker as claimed in the appended claims.
[0011] Further characteristics and advantages will become apparent from the description
of a preferred but not exclusive embodiment of a kinematic system for actuating the
moving contact, particularly for automatic electric breakers, illustrated only by
way of non-limitative example in the accompanying drawings, wherein:
Fig. 1 is a schematic exploded perspective view of the kinematic device for actuating
the moving contact, according to the invention;
Fig. 2 is a schematic view of the kinematic device in the position in which the contact
is open;
Fig. 3 is a view of the kinematic device in the position in which the contact is closed;
Fig. 4 is a view of the kinematic device in the released position, with the contact
open and the lever still arranged in closed position.
Fig. 5 is a schematic exploded perspective view of the kinematic device for actuating
two moving contacts, according to a second aspect of the invention;
Fig. 6 is a schematic side partial view of the kinematic device of Fig. 5 wherein
the right hand side contact is shown in the open position;
Fig. 7 is a schematic side partial view of the kinematic device of Fig. 5 wherein
the left hand side contact is shown in the open position;
Fig. 8 is a schematic side perspective view of the kinematic device of Fig. 5, wherein
the right hand side contact is shown in the closed position;
Fig. 9 is a schematic side perspective view of the kinematic device of Fig. 5, wherein
the left hand side contact is shown in the closed position.
[0012] With reference to the above figures, the kinematic system for actuating the moving
contact, particularly for automatic electric breakers, according to the invention,
includes a box-like body which is generally designated by the reference numeral 1
and is constituted by a conventional box-like body provided for coupling to conventional
omega-shaped bars.
[0013] Inside the box-like body there is a motion lever, generally designated by the reference
numeral 2, which is pivoted to the box-like body 1 by means of a first pivot 3.
[0014] The motion lever 2 has a first arm 4 to which a bracket 5 is pivoted; the bracket
is connected to the body 6 of an actuation lever or part, generally designated by
the reference numeral 10, which can be accessed from the outside of the box-like body
1.
[0015] The motion lever 2 has second arms, designated by the reference numeral 7, which
are pivoted to the ends of linkages 11 which are articulated, at the other end, to
the first end 12 of a cross-member 13 which is substantially U-shaped.
[0016] The cross-member 13 is operatively connected, at its second end 14, to a moving contact
15 as will become apparent hereinafter.
[0017] The first end 12 of the cross-member 13 slidingly engages the slots 20, which are
formed on an engagement lever 21 which is substantially U-shaped and is pivoted at
the free ends of its arms by means of a second pivot 22 which is rigidly coupled to
the box-like body.
[0018] In the connecting portion, the engagement lever has a locking tab 23 which interacts
with the locking arm 30 of a control part 31, which by means of a third pivot 32 is
mounted so that it can oscillate with respect to the box-like body 1. A coiled wire
spring biases control part 31 against engagement lever 21.
[0019] The third pivot 32 also constitutes the fulcrum of the lever 15.
[0020] The control part has, on the opposite side with respect to the locking arm, a protrusion
35 which constitutes the coupling point for the intervention of the thermal protection
device. A hook-shaped body 36 is formed by the control part 31 inside the moving contact
15 and is U-shaped in transverse cross-section. The hook-shaped body 36 also provides
the coupling point for the intervention of the magnetic protection device. The moving
core of the magnetic protection device has a wider portion which engages a fold 37
to accelerate the opening of the moving contact 15.
[0021] A rivetable pivot 40 is provided on the moving contact and provides the pivoting
of a spring guide 41, which forms a recess 42 in which the end of the U-shaped part
13 is coupled; a spring 50 for the contact pressure that biases the moving contact
closed is provided around the rivetable pivot 40.
[0022] A driving lever 60 interacts with a connecting arm 61, formed by the control part
and has the function of achieving simultaneous disengagement if two separate automatic
breakers are inserted in the same box-like body; optionally, the lever 60 can interact
with the components of a laterally adjacent box-like body.
[0023] In practical operation, starting from the condition in which the contact is open,
as shown in Fig. 2, by turning the actuation part 10 one causes the oscillation of
the motion lever 2, with a consequent rotation of the linkages 11 which, by interacting
with the end 12 of the cross-member 13 arranged on the engagement lever 21, pushes
to the left, relative to the drawings, the moving contact 15, consequently positioning
the engagement arm 30 of the control part 31 so as to couple to the locking tab 23;
at the same time, a thrust is applied to the spring guide 41 and causes the moving
contact to close against the fixed contact 70.
[0024] In case of automatic release, as shown in Fig. 4, the oscillation of the control
part 31 causes the disengagement of the engagement tab, with the consequent rotation
of the engagement lever, which is no longer retained by the tab 23, and with the consequent
opening of the moving contact.
[0025] When automatic disengagement occurs, the tab 23 slides against the locking arm 30,
causing the oscillation of the control part 31, which by virtue of the driving lever
60 also causes the disengagement of the other contact or of the component of the laterally
adjacent box-like part.
[0026] It should of course be noted that the actuation part 10 then also changes position;
this part is shown while still in the closed condition in Fig. 4 and returns by means
of an elastic return system.
[0027] Likewise, when opening is performed by means of the actuation part, it is the actuation
part that causes the rotation of the control part, consequently opening the moving
contact.
[0028] In the described arrangement of the kinematic device, it is evident that the kinematic
device is provided by means of very compact and small-size parts, so that it is possible
to obtain very quick disengagements, with a consequent significant reduction of arcing
problems.
[0029] The device according to the invention is susceptible of numerous modifications and
variations, within the scope of the appended claims.
[0030] Figs. 5-7 show a double kinematic device 100 and 200, for actuating two moving contacts
in an automatic electric breaker, according to a second aspect of the invention.
[0031] The double device will be described with reference to one side mainly, and like reference
characters, added by 100 or 200, denote similar features to those of FIGs 1-4.
[0032] An actuation lever 110, which can be accessed from the outside of the box-like body
(not illustrated) has a body 106 connected to two motion levers 102 and 202 through
a bracket 105.
[0033] Each motion lever 102,202 is pivoted to cross-member 113,213 which is substantially
U-shaped.
[0034] Cross-member 113,213 is operatively connected to moving contact 115,215 as will become
apparent hereinafter.
[0035] Cross-member 113,213 engages an engagement lever 121,221 pivoted to the box-like
body by means of a second pivot 122,222.
[0036] Engagement lever 121,221 interacts with locking arm 130,230 of control part 131,231,
which is mounted so that it can oscillate with respect to the box-like body, by means
of third pivot 132, 232. A coiled wire spring 171,271 biases control part 131,231
against engagement lever 121,221.
[0037] Third pivot 132,232 also constitutes the fulcrum of lever 115,215.
[0038] Control part 131,231 has protrusion 135,235 which constitutes the coupling point
for the intervention of a thermal protection device (not illustrated in the drawings).
A hook-shaped body 136,236 is formed by the control part 131,231 inside moving contact
115,215. Hook-shaped body 136,236 also provides the coupling point for the intervention
of a magnetic protection device (not illustrated in the drawings).
[0039] A contact spring 150,250 biases the moving contact in the closed position.
[0040] The kinematic device according to this second aspect of the invention operates as
follows.
[0041] Action on actuation lever 110, charges spring 172 and moves bracket 105 which is
associated with lever 110 and with the two motion levers 102,202. The rotation of
motion levers 102,202 actuates engagement levers 121,221 by means of cross-members
113,213 which are associated with the levers through contact springs 150,250. In this
manner, engagement levers 121,221 may rotate about pivot 122,222.
[0042] The motion of moving contacts 115,215 is transferred by means of link-rods 173,273
which are associated both with the moving contacts and with the cross-members. Control
part 131 and drive control part 231 are inserted in the contacts and, by rotating
about pivot 132, release engagement levers 121,221 in the case of intervention of
the magnetic or thermal breaker (not illustrated), both acting on the control parts.
Namely, the magnetic breaker acts on the control part through the magnetic bracket
174,274. Magnetic bracket 174,274 slides inside a slot 175,275 provided on moving
contact 115,215. In this manner the magnetic bracket has two functions: it releases
control part 131,231, at the start of its motion and then drives the moving contact
to the open position (illustrated in FIGs. 6 and 7).
[0043] Control parts 131,231 are connected to control springs 171,271 which are adapted
to re-cock engagement levers 121,221 in the case of intervention. Control parts 131,231
are also mutually connected so that one of the engagement levers disengages from one
of the control parts, the other control part is released too.
[0044] In case of intervention, a tooth on the front part of the engagement lever slides
on the upper portion of the control part causing the control part to rotate. The mutual
connection between the control part is ensured because the control parts are joined
by a gear-like system, as can be observed on the inside ends of the control parts.
The connecting system is designed to provide a delay in the release times, based on
the play between the elements. Furthermore, drive control part 231 allows to interface
the release motion with other possible joined modules or devices, by means of pivot
276 and is therefore capable to receive or transmit motion.
[0045] Moving contacts 115,215 are also associated with drive springs 177,277 that ensure
the opening of the contacts.
[0046] When moving contacts 115,215 close, as shown in FIGs. 8 and 9, they rest on fixed
contacts 170,270. The contact strength is guaranteed by the pressure generated between
cross-members 113,213 and contact springs 150,250.
[0047] In practice, the materials used, as well as the contingent shapes and dimensions,
may be any according to the requirements.
1. An automatic electric breaker comprising a box-like body (1) and a kinematic device
for actuating the moving contact, a motion lever (2) which is connected to a lever
(10) for actuating the breaker and is pivoted to said box-like body by means of a
first pivot (3), said motion lever (2) being articulated to linkages (11), a locking
arm (30) of a control part (31) being pivoted to said box-like body (1) by means of
a third pivot (32),
characterized in that
said linkages (11) are pivoted, at their other end, to the first end (12) of a cross-member
(13) which is operatively associated with a moving contact (15), said first end (12)
of said cross-member (13) slidingly engaging an engagement lever (21) which is pivoted
to said box-like body (1) by means of a second pivot (22) and is provided with a locking
tab (23) which interacts with the locking arm (30) of said control part (31) which
is pivoted to said box-like body (1) by means of said third pivot (32) which constitutes
the fulcrum of said moving contact.
2. The automatic breaker, according to claim 1, characterized in that said motion lever
(2) comprises a first arm (4) to which a bracket (5) is pivoted, said bracket being
connected to the body of said actuation lever.
3. The automatic breaker, according to one of the preceding claims, characterized in
that said motion lever (2) has second arms (7) for pivoting said linkages (11).
4. The automatic breaker, according to one of the preceding claims, characterized in
that said first ends (12) of said cross-member (13) slidingly engage slots (20) formed
in said engagement lever (21), said engagement lever being U-shaped and having said
locking tab (23) at the connecting portion.
5. The automatic breaker, according to one of the preceding claims, characterized in
that said control part (31) has a protrusion (35) which constitutes the coupling point
for the thermal protection device, a hook-shaped body (36) being provided laterally
to said third pivot (32) which constitutes the region for coupling to the magnetic
protection device, said hook-shaped body interacting with said moving contact (15),
an expansion of the moving core of the magnetic protection device being provided which
interacts with a fold (37) of said moving contact (15) in order to accelerate its
opening action.
6. The automatic breaker, according to one of the preceding claims, characterized in
that it comprises a spring guide (41), which is pivoted by means of a pivot (40) which
can be riveted to said moving contact and has a recess (42) in which the other end
of said cross-member couples, a spring (50) being provided for the closing contact
pressure of said moving contact.
7. The automatic breaker, according to one of the preceding claims, characterized in
that it comprises a driving lever (60) which interacts between a connecting arm (61)
of said control part and is suitable to simultaneously disengage two kinematic systems
provided in the same box-like casing or optionally the components of a laterally adjacent
box-like casing.
8. The automatic breaker, according to one of the preceding claims, characterized in
that the kinematic device affects substantially half of the useful volume formed inside
said box-like casing.
9. The automatic breaker, according to one of the preceding claims, characterized in
that, in case of automatic breaker intervention, a tooth on a front part of said engagement
lever slides on an upper portion of said control part causing said control part to
rotate.
10. The automatic breaker, according to one of the preceding claims, characterized in
that said control parts are joined by a gear-like system provided on the inside ends
of said control parts.
11. The automatic breaker, according to one of the preceding claims, characterized in
that said control parts are joined to provide a delay in the release times, based
on the play between the associated elements.
12. The automatic breaker, according to one of the preceding claims, characterized in
that said control part is adapted to interface the release motion with other possible
joined modules or devices.
13. The automatic breaker, according to one of the preceding claims, characterized in
that, said control part is adapted to interface the release motion with other possible
joined modules or devices, by means of a pivot, and is capable to receive or transmit
motion.
1. Automatischer Schutzschalter mit einem kastenartigen Körper (1), und einer kinematischen
Antriebsvorrichtung für einen bewegbaren Kontakt, einem Bewegungshebel (2), der mit
einem Hebel (10) zum Antrieb eines Unterbrechers verbunden und an dem kastenartigen
Körper über einen ersten Achszapfen (3) beweglich gelagert ist, wobei der Bewegungshebel
(2) mit Verbindungselementen (11) gelenkig verbunden ist, einem Verriegelungsarm (30)
eines Kontrollelementes (31) der beweglich an dem kastenartigen Körper (1) über einen
dritten Achszapfen (32) gelagert ist,
dadurch gekennzeichnet,
daß die Verbindungselemente (11) an ihren anderen Enden gelenkig mit dem ersten Ende
(12) eines Querträgers (13) verbunden sind, der zum Betrieb mit einem bewegbaren Kontakt
(15) verbunden ist, wobei das erste Ende (12) des Querträgers (13) gleitend in einen
Eingriffhebel (21) eingreift, welcher gelenkig über einen zweiten Achszapfen (22)
an dem kastenartigen Körper (1) gelagert ist und einen Verriegelungsdorn (23) aufweist,
welcher mit einem Verriegelungsarm (30) des Kontrollelementes (31) zusammenwirkt,
das über einen dritten Achszapfen (32), der die Drehachse des bewegbaren Kontaktes
bildet, an dem kastenartigen Körper (1) gelenkig gelagert ist.
2. Automatischer Schutzschalter nach Anspruch 1, dadurch gekennzeichnet, daß der Bewegungshebel
(2) einen ersten Arm (4) aufweist, an dem ein Gelenkarm (5) gelenkig gelagert ist,
wobei der Gelenkarm mit dem Körper des Antriebshebels verbunden ist.
3. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß der Bewegungshebel (2) zweite Arme (7) zum gelenkigen Lagern der Verbindungen
(11) aufweist.
4. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß die ersten Enden (12) des Querträgers (13) gleitend in in dem Eingriffhebel (21)
ausgeformte Schlitze (20) eingreifen, wobei der Eingriffhebel U-förmig ausgebildet
ist und den Verriegelungsdorn (23) in einem Verbindungsbereich aufweist.
5. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß das Kontrollelement (31) einen Vorsprung (35), welcher den Kupplungspunkt für
die thermische Schutzvorrichtung bildet, und einen hakenförmigen Körper (36), der
lateral an dem dritten Achszapfen (32) angeordnet ist, welcher den Bereich zur Kupplung
an die magnetische Schutzvorrichtung bildet, aufweist, wobei der hakenförmige Körper
mit dem bewegbaren Kontakt (15) zusammenwirkt und eine Auslenkung eines bewegbaren
Kerns der magnetischen Schutzvorrichtung vorgesehen ist, der mit einer Falz (37) des
bewegbaren Kontaktes (15) zusammenwirkt, um den Öffnungsvorgang des letzteren zu beschleunigen.
6. Automatischer Schutzschalter gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß er eine Federführung (41) aufweist, die auf einem Achszapfen (40), der an dem
bewegbaren Kontakt angenietet sein kann, gelenkig gelagert ist und eine Ausnehmung
(42) aufweist, in die das andere Ende des Querträgers kuppelt, wobei eine Feder (50)
zur Ausübung eines Druckes auf den bewegbaren Kontakt zum Schließen des Kontaktes
vorgesehen ist.
7. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß er einen Antriebshebel (60) aufweist, der auf einen Verbindungsarm (61) des Kontrollelementes
wirkt und geeignet ist, gleichzeitig zwei in demselben kastenartigen Körper angeordnete
kinematische Einheiten oder optional Komponenten eines lateral angrenzenden kastenartigen
Gehäuses zu entkuppeln.
8. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß die kinematische Vorrichtung im wesentlichen die Hälfte des nutzbaren, im Inneren
des kastenartigen Gehäuses gebildeten Volumens einnimmt.
9. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß im Falle einer Intervention des automatischen Schutzschalters ein Zahn auf einem
vorderen Teil des Eingriffhebels in einen oberen Bereich des Kontrollelementes gleitet
und eine Drehung des Kontrollelementes bewirkt.
10. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß die Kontrollelemente über ein getriebeartiges System verbunden sind, das an den
innengelegenen Enden der Kontrollelemente angeordnet ist.
11. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß die Kontrollelemente verbunden sind, um eine Verzögerung der Freigabezeit basierend
auf dem Zusammenspiel der beteiligten Elemente zu bewirken.
12. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß das Kontrollelement angepaßt ist, die Freigabebewegung auf andere mögliche, damit
verbundene Module oder Vorrichtungen zu übertragen.
13. Automatischer Schutzschalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
daß das Kontrollelement angepaßt ist, die Freigabebewegung auf andere mögliche, damit
verbundene Module oder Vorrichtungen mittels eines Achszapfens zu übertragen, und
dazu ausgebildet ist, Bewegungen zu empfangen oder zu übertragen.
1. Disjoncteur électrique comprenant un corps (1) en forme de coffret et un dispositif
cinématique pour actionner le contact mobile, un levier (2) de mouvement qui est relié
à un levier (10) pour actionner le disjoncteur et est fixé à pivotement audit corps
en forme de coffret au moyen d'un premier pivot (3), ledit levier (2) de mouvement
étant articulé à des pièces (11) de liaison, un bras (30) de verrouillage d'une pièce
(31) de commande étant fixé à pivotement audit corps (1) en forme de coffret au moyen
d'un troisième pivot (32),
caractérisé en ce que
lesdites pièces (11) de liaison sont fixées à pivotement, à leur autre extrémité,
à la première extrémité (12) d'une pièce (13) transversale qui est associée fonctionnellement
à un contact mobile (15), ladite première extrémité (12) de ladite pièce (13) transversale
entrant en contact de coulissement avec un levier (21) de mise en contact qui est
fixé à pivotement audit corps (1) en forme de coffret au moyen d'un deuxième pivot
(22) et est muni d'une languette (23) de verrouillage qui interagit avec le bras (30)
de verrouillage de ladite pièce de commande qui est fixée à pivotement audit corps
(1) en forme de coffret au moyen dudit troisième pivot (32) qui constitue le point
d'appui dudit contact mobile.
2. Disjoncteur selon la revendication 1, caractérisé en ce que ledit levier (2) de mouvement
comprend un premier bras (4) auquel un étrier (5) est fixé à pivotement, ledit étrier
étant relié au corps dudit levier d'actionnement.
3. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que ledit
levier (2) de mouvement des deuxièmes bras (7) pour faire pivoter lesdites pièces
(11) de liaison.
4. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que lesdites
premières extrémités (12) de ladite pièce (13) transversale entrent en contact de
coulissement avec des fentes (20) formées dans ledit levier (21) d'entrée en contact,
ledit levier d'entrée en contact étant en forme de U et ayant ladite languette (23)
de verrouillage à la portion de raccordement.
5. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que ladite
pièce (31) de commande a une protubérance (35) qui constitue le point de couplage
pour le dispositif thermique de protection, un corps (36) en forme de crochet étant
prévu latéralement audit troisième pivot (32) qui constitue la région de couplage
audit dispositif magnétique de protection, ledit corps en forme de crochet interagissant
avec ledit contact mobile (15), une dilatation du noyau mobile du dispositif magnétique
de protection étant prévue qui interagit avec un pli (37) dudit contact mobile (15)
afin d'accélérer son action d'ouverture.
6. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce qu'il comprend
un guide élastique (41) qui est fixé à pivotement au moyen d'un pivot (40) qui peut
être rivé audit contact mobile et a un renfoncement (42) dans lequel se couple l'autre
extrémité de ladite pièce transversale, un ressort (50) étant prévu pour la pression
de contact de fermeture dudit contact mobile.
7. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce qu'il comprend
un levier (60) d'entraînement qui interagit entre un bras (61) de raccordement de
ladite pièce de commande et est conçu pour déconnecter simultanément deux systèmes
cinématiques prévus dans le même boîtier en forme de coffret ou, facultativement,
les composants d'un boîtier adjacent latéralement en forme de coffret.
8. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que le dispositif
cinématique affecte pratiquement la moitié du volume utile formé à l'intérieur dudit
boîtier en forme de coffret.
9. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que, en
cas d'intervention du disjoncteur, une dent sur une partie avant dudit levier d'entrée
en contact coulisse sur une portion supérieure de ladite pièce de commande, amenant
ladite pièce de commande à tourner.
10. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que lesdites
pièces de commande sont réunies par un système en forme d'engrenage prévu sur les
extrémités intérieures desdites pièces de commande.
11. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que lesdites
pièces de commande sont réunies pour fournir un retard dans les temps de déclenchement,
basé sur le jeu entre les éléments associés.
12. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que ladite
pièce de commande est conçue pour interfacer le mouvement de déclenchement avec d'autres
modules ou dispositifs possibles associés.
13. Disjoncteur selon l'une des revendications précédentes, caractérisé en ce que ladite
pièce de commande est conçue pour interfacer le mouvement de déclenchement avec d'autres
modules ou dispositifs possibles associés, au moyen d'un pivot, et est capable de
recevoir ou de transmettre un mouvement.