EP0562525A2 - Serrure électrique avec une poignée, que agit directement sur le pêne demi-tour - Google Patents

Serrure électrique avec une poignée, que agit directement sur le pêne demi-tour Download PDF

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Publication number
EP0562525A2
EP0562525A2 EP93104687A EP93104687A EP0562525A2 EP 0562525 A2 EP0562525 A2 EP 0562525A2 EP 93104687 A EP93104687 A EP 93104687A EP 93104687 A EP93104687 A EP 93104687A EP 0562525 A2 EP0562525 A2 EP 0562525A2
Authority
EP
European Patent Office
Prior art keywords
spring
spring latch
stem
sliding element
casing
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.)
Granted
Application number
EP93104687A
Other languages
German (de)
English (en)
Other versions
EP0562525A3 (fr
EP0562525B1 (fr
Inventor
Deo Errani
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.)
CISA SpA
Original Assignee
CISA SpA
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 CISA SpA filed Critical CISA SpA
Publication of EP0562525A2 publication Critical patent/EP0562525A2/fr
Publication of EP0562525A3 publication Critical patent/EP0562525A3/xx
Application granted granted Critical
Publication of EP0562525B1 publication Critical patent/EP0562525B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0607—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving pivotally or rotatively
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/10—Bolts of locks or night latches
    • E05B15/101—Spring-retracted bolts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable

Definitions

  • the present invention relates to an electric lock provided with an opening handle which acts directly on the spring latch.
  • electric locks are provided with a spring latch and with a reloading piston provided with a tang being guided in a slot of an element which can slide inside the lock casing and can be blocked by means of a ratchet system controlled by an electromagnet.
  • the reloading piston is coupled to the sliding element by means of a spring which remains compressed when the reloading piston, in door closure position, abuts against the doorjamb, whereas the ratchet system keeps the sliding element blocked.
  • the spring acts on the sliding element which, in its movement, pulls the spring latch into the casing, allowing to open the door.
  • the technical aim of the present invention is to provide an electric lock in which the opening of the spring latch by means of the handle is no longer snap-acting but can be controlled by the user.
  • an electric lock comprising: a casing provided with a front wall; a hub which is rotatably supported in said casing and is provided with a hole for the rotary engagement of an actuation handle; a spring latch and a reloading piston which are guided in openings of said front wall; an element being slideably guided in said casing parallel to said piston; means for blocking said sliding element which are controlled by an electromagnet between a position for blocking said sliding element and a position for releasing it; said piston being elastically connected to said sliding element so as to allow the retraction of the piston into the casing when said blocking means are in the position for blocking the sliding element, characterized in that the spring latch comprises: a stem being guided in said sliding element parallel to said reloading piston and has an end provided with engagement means for said sliding element being adapted to allow said sliding element to pull the spring latch into the casing during the opening step; spring means which act on said spring latch to keep said sliding element in abutment against a fixed stroke limiter at which said spring latch pro
  • the numeral 1 generally designates the lock casing, which comprises a back wall 2 around which a peripheral wall extends; said peripheral wall is composed of an upper wall 3, a lower wall 4, a front wall 5 and a rear wall 6.
  • the numeral 7 designates the closure cover of the casing, which is fixed by means of screws which engage in threaded bushes 9a, 9b, 9c, 9d which are rigidly coupled to the back wall 2.
  • the reloading piston 12 has a cylindrical stem 13, one end of which engages a sliding element 14, hereinafter termed slider.
  • Said slider 14 is constituted by an L-shaped strip which has one portion 15 adjacent to the upper wall 3 and the other portion 16 normal to said wall 3.
  • the end of the stem 13 is guided in a hole of the portion 16 and is provided with a ring 17 which is meant to abut on the portion 16 so as to act as a shoulder.
  • a collar 18 is formed on the stem 13 and acts as rest for an end of a spring 19 which is fitted on the stem 13; the opposite end of said spring 19 abuts against the portion 16 of the slider 14.
  • the portion 15 of the slider is guided along the wall 3 of the casing by a pin 20 which slides in a slot 21 of the portion 15; the portion 15 is furthermore provided, at the end of the edge adjacent to the back wall 2, with a tooth 22 which slides on the back wall 2.
  • the tooth 22 is suitable to engage a notch 23 formed on the edge of a pawl 24 which is articulated about a pivot 25 which protrudes from the back wall 2.
  • the pawl 24 can oscillate between a position which blocks the slider 14, which occurs when the tooth 22 engages the notch 23 (the position shown in the figure), and a position for the release of the slider 14, which occurs when the pawl 24 is turned by an angle at which the tooth 22 disengages the notch 23 to allow the portion 15 to slide toward the rear wall 6.
  • the pawl 24 is retained in the blocking position by a lever 26 which is pivoted in a rocker-like manner on a pivot 27 and is subjected to the action of an electromagnet 28 installed in the casing 1.
  • the electromagnet 28 is provided with a core 29 which is actuated outward by an internal spring, so that it is in contact with the lower arm 30 of the lever 26.
  • the core 29 acts, by virtue of the internal spring, on the lower arm 30 of the lever 26, so as to make the upper arm 31 oscillate into abutment against the bush 9b in the position for retaining the pawl 24.
  • the spring latch 11 is also provided with a stem 32 which is guided through a plate 33 which is blocked between the back wall 2 and the cover 7 of the casing and constitutes a fixed stroke limiter.
  • the end of the stem 32 is slideably guided through the portion 16 of the slider, and a lug 35 is coupled to said end by means of a ring 34; said lug is folded at right angles to the back wall 2 and belongs to a bar 36 which extends next to the side 15 of the slider 14.
  • a slot 37 is formed in the bar 36 parallel to the portion 15 of the slider 14 and is engaged by the pivot 25, which thus keeps the bar 36 guided.
  • a collar 38 is formed on the stem 32, and an end of a spring 39 rests against it; the spring 39 is fitted on the stem 32, and its opposite end rests against the plate 33.
  • the spring 39 is less rigid than the spring 19 and keeps the spring latch 11 in a position in which it protrudes from the front wall; this position is defined by the abutment of the lug 35 against the plate 33 with the interposition of the portion 16, which remains clamped between the plate 33 and the lug 35.
  • the end of the bar 36 which is opposite to the lug 35 has a wing 40 which is also folded at right angles to the back wall 2 and on which a lever 41 can act; said lever 41 is radially coupled to the hub 42, to which the handle for manual actuation of the lock is rotationally coupled.
  • the bar 36 is used to operatively connect the lever 41 to the stem 32 of the spring latch.
  • the hub 42 is rotatably supported in circular seats of the back wall 2 and of the cover 7 of the casing, and is provided with a square hole 43 in which the square pivot of the handle engages with a side fit.
  • the hub 42 is provided with two lugs 44, 45 which are arranged diametrically.
  • a strut 46 acts on the lug 44; it is loosely guided in the bush 9c and actuated by a spring 47 which acts between said bush 9c and a shoulder 48 of the strut 46.
  • the hub 42 is kept in an angular position defined by the abutment of the lug 45 against the bush 9d; in this position, the lever 41 is disengaged from the wing 40.
  • the spring latch 11 In the door closure position, the spring latch 11 is engaged in the related selvage and thus protrudes from the front wall 5. At the same time, the piston 12 abuts against the doorjamb and is arranged inside the casing. Since the electromagnet 28 is not energized, the core 29 pushes the lever 26 so that it abuts against the bush 9b, so as to prevent the oscillation of the pawl 24 and block the sliding of the slider 14. As a consequence of this, during door closure, when the piston 12 retracts into the casing, the stem 13 slides with respect to the portion 16 of the slider and the spring 19 is compressed.
  • the electric lock according to the invention perfectly achieves the intended aim.
  • the positive action applied with the handle furthermore allows to compensate for the force applied by the spring 19 during opening, which may not be sufficient due to increases in internal friction.
  • the bar 36 which connects the stem 32 to the lever 41 can be of the articulated type instead of being sliding.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Trip Switchboards (AREA)
EP93104687A 1992-03-24 1993-03-22 Serrure électrique avec une poignée, que agit directement sur le pêne demi-tour Expired - Lifetime EP0562525B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO920106A IT1259255B (it) 1992-03-24 1992-03-24 Serratura elettrica dotata di maniglia di apertura con azione diretta sullo scrocco
ITBO920106 1992-03-24

Publications (3)

Publication Number Publication Date
EP0562525A2 true EP0562525A2 (fr) 1993-09-29
EP0562525A3 EP0562525A3 (fr) 1994-03-16
EP0562525B1 EP0562525B1 (fr) 1996-10-09

Family

ID=11338107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104687A Expired - Lifetime EP0562525B1 (fr) 1992-03-24 1993-03-22 Serrure électrique avec une poignée, que agit directement sur le pêne demi-tour

Country Status (3)

Country Link
EP (1) EP0562525B1 (fr)
ES (1) ES2092711T3 (fr)
IT (1) IT1259255B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900901A2 (fr) * 1997-09-08 1999-03-10 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Dispositif de déclenchement d'une serrure éléctrique
CN102877699A (zh) * 2012-10-17 2013-01-16 曹国基 具有增强锁舌结构的防盗锁体

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394247A (fr) * 1964-02-20 1965-04-02 Cisa Costruzioni Italiane Serr Serrure électrique pourvue d'un dispositif de blocage du pène en vue d'en empêcher la rentrée sous l'effet d'une pression exercée dans le sens de sons coulissement
FR1484810A (fr) * 1966-05-06 1967-06-16 Serrure électromécanique pour porte
GB2000217A (en) * 1977-06-21 1979-01-04 Philippsthal G Apparatus for latching together and releasing two parts which are movable relative to one another
EP0034129A1 (fr) * 1980-02-08 1981-08-19 NUOVA FEB S.r.l. Serrure électrique
EP0292361A1 (fr) * 1987-05-13 1988-11-23 Creations D. Guidotti Serrure comportant un mécanisme de déverrouillage à fonctionnement électrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394247A (fr) * 1964-02-20 1965-04-02 Cisa Costruzioni Italiane Serr Serrure électrique pourvue d'un dispositif de blocage du pène en vue d'en empêcher la rentrée sous l'effet d'une pression exercée dans le sens de sons coulissement
FR1484810A (fr) * 1966-05-06 1967-06-16 Serrure électromécanique pour porte
GB2000217A (en) * 1977-06-21 1979-01-04 Philippsthal G Apparatus for latching together and releasing two parts which are movable relative to one another
EP0034129A1 (fr) * 1980-02-08 1981-08-19 NUOVA FEB S.r.l. Serrure électrique
EP0292361A1 (fr) * 1987-05-13 1988-11-23 Creations D. Guidotti Serrure comportant un mécanisme de déverrouillage à fonctionnement électrique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900901A2 (fr) * 1997-09-08 1999-03-10 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Dispositif de déclenchement d'une serrure éléctrique
EP0900901A3 (fr) * 1997-09-08 2000-12-20 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Dispositif de déclenchement d'une serrure éléctrique
CN102877699A (zh) * 2012-10-17 2013-01-16 曹国基 具有增强锁舌结构的防盗锁体

Also Published As

Publication number Publication date
EP0562525A3 (fr) 1994-03-16
EP0562525B1 (fr) 1996-10-09
ITBO920106A0 (it) 1992-03-24
IT1259255B (it) 1996-03-11
ES2092711T3 (es) 1996-12-01
ITBO920106A1 (it) 1993-09-24

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