EP1505230A1 - Schloss mit Drehfalle - Google Patents

Schloss mit Drehfalle Download PDF

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Publication number
EP1505230A1
EP1505230A1 EP04016341A EP04016341A EP1505230A1 EP 1505230 A1 EP1505230 A1 EP 1505230A1 EP 04016341 A EP04016341 A EP 04016341A EP 04016341 A EP04016341 A EP 04016341A EP 1505230 A1 EP1505230 A1 EP 1505230A1
Authority
EP
European Patent Office
Prior art keywords
latch
slot
bracket
door
lock
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Withdrawn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
EP04016341A
Other languages
English (en)
French (fr)
Inventor
Deo Errani
Enrico Medri
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 EP1505230A1 publication Critical patent/EP1505230A1/de
Withdrawn legal-status Critical Current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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/1046—Panic bars
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E05C3/24—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member

Definitions

  • the present invention relates to a lock with rotary latch.
  • Locks with rotary latch are already known for example from US-2,344,532, US-4,896,908, US-4,988,134, and US-5,142,890, from DE-632,624, from EP-201,244, and from WO-02/059443A1 in the name of this same Applicant.
  • These locks are fixed to the lock stile of the door and comprise a latch provided with a slot in which, when the door is closed, a bracket fixed to the abutment jamb engages. More specifically, after the engagement of the bracket in the slot, the thrust applied to the door produces the rotation of the latch and the engagement of the bracket.
  • an appropriately provided device locks the latch and retains it in the door closure position. By deactivating the device (for example electrically or manually), the latch is allowed to turn freely and therefore disengage from the bracket when the door is operated in the opening direction.
  • the aim of the present invention is to obviate the above-cited drawback of known locks with rotary latch.
  • an object of the present invention is to provide a lock with rotary latch that has a simple structure and is capable of ensuring effective operation and a relatively low cost.
  • a lock with rotary latch provided with a slot adapted to engage a bracket fixed to the abutment jamb of a door
  • said lock comprising a box-like body, which can be fixed at the abutment edge of a door and is provided with a portion that protrudes from said edge, in which said latch is mounted so that it can rotate, said slot being shaped so as to produce, when the door closes, the engagement of said bracket in said slot, and therefore the rotation of said latch until it reaches the position for engaging said bracket
  • a locking device being further provided for locking said latch in two stable positions that correspond to the closure and opening positions of the door, respectively, characterized in that said latch accommodates at least one element controlled by a member arranged in said slot, said element being movable between a position for blocking the rotation of said latch when said latch is disengaged from said bracket and a position for enabling the rotation of said latch when said member detects the presence of said bracket in said slot.
  • Figures 1 and 2 refer to a lock with rotary latch of the type disclosed in the above-cited international publication WO-02/059443A1 in the name of this same Applicant, which is referenced here as an integral part of the present description.
  • the reference numeral 1 designates the box-like body of the lock, which is closed in a lower region by a plate 2 that constitutes the bottom by means of which the lock is fixed to a door at the abutment edge.
  • the body 1 has a portion 3 which, when the lock is fully installed, protrudes from the edge of the door.
  • the portion 3 is formed by two side walls 4 and 5 of the box-like body, between which there is a flap 6, which encloses, together with the walls 4 and 5, a compartment 7 for accommodating a rotary latch 8 of the lock.
  • Respective identical recesses 9 and 10 are formed in the walls 4 and 5 and are arranged mirror-symmetrically with respect to a centerline plane P of the latch.
  • the recesses 9 and 10 are open toward the bottom 2 of the lock, and have two parallel edges that diverge in a V-like configuration, forming a guide for the engagement bracket, as will become better apparent hereinafter.
  • the latch 8 is supported so that it can rotate on a shaft 11 whose opposite ends are fixed in the walls 4 and 5.
  • a cylindrical seat 15 which is parallel to the shaft 11 and is connected to a cavity 16, which is interposed between the seat 15 and the shaft 11.
  • the reference numeral 17 designates a gap, which is perpendicular to the shaft 11 and cuts along the centerline plane P the lower prong 13 and the upper prong 12 as well as the slot 14, the seat 15 and the cavity 16.
  • Two cylindrical elements 18 and 19, termed pistons hereinafter for the sake of convenience in description, are guided in the seat 15, and two linkages 22 and 23 are articulated to them by way of respective pins 20 and 21.
  • the ends of the linkages 22 and 23 that lie opposite the pins 20 and 21 are provided with wider regions that are mutually superimposed and are crossed, at the centerline plane P, by a pivot 24, which protrudes from a rod 25 that has a larger diameter and is guided in the gap 17.
  • the rod 25 passes diametrically through a cylindrical stem 26, from which a portion 27 having a smaller diameter protrudes and forms, together with the stem 26, a shoulder 28.
  • the stem 26 and the portion 27 are guided in seats 26a, 27a, which are formed in the latch 8 and lead into the slot 14.
  • a spring 29 acts on the shoulder 28 and actuates the stem 26 so that it protrudes into the slot 14.
  • a blind hole 30 is formed coaxially in the stem 26 and intersects the rod 25; a grub 31, actuated by a spring 32, can slide in said hole.
  • the grub 31 engages, by means of its end arranged opposite the spring 32, a slot 33 of the rod 25, so as to prevent the rod from sliding in the stem 26 and prevent the pivot 24 from disengaging from the linkages 22 and 23.
  • the rotary latch 8 differently from what occurs in a conventional lock provided with a latch and a bolt that engage by linear sliding in a so-called selvage, rotates so as to engage on a bracket fixed to the abutment jamb of the door.
  • the bracket is composed of a cylindrical bar 34 which, by means of a pair of arms 35, is articulated to a base 36, which is fixed by means of screws to the abutment jamb of the door.
  • the cylindrical bar 34 has a diameter that is complementary to the diameter of the slot 14, so that it can be accommodated thereby with minimal play and act as an engagement member for the latch 8 when the door is closed.
  • the latch 8 can rotate between two stable active positions, which correspond to the condition in which the door is open and the condition in which the door is closed.
  • the latch When the door is open, the latch is in the condition shown in Figure 1, i.e., rotated in an angular position in which the slot 14 is oriented toward the inlet of the recesses 9 and 10.
  • This stable angular position, assumed by the latch 8, is determined by a known locking device, generally designated by the reference numeral 37, which acts on the latch, keeping it in abutment against the box-like body 1 ( Figure 5) when the door is open or against the bottom 2 when the door is closed.
  • the structure of the locking device 37 is not described in detail, but can be deduced for example from the structure described in the above-cited international publication WO-02/059443A1.
  • the bracket 34 By closing the door (Figure 5), the bracket 34 can enter the slot 14 and push the stem 26 into its seat 26a.
  • the retraction stroke of the stem 26 causes, by means of the rod 25 and the linkages 22 and 23, the simultaneous retraction into the latch of the pistons 18 and 19 and their disengagement from the recesses 9 and 10, by way of which, before the door abuts against the jamb, the latch can rotate ( Figure 6) and engage the bracket 34.
  • the device 37 locks the latch in the stable door closure position.
  • the particularity of the invention is that the latch 8, if there is no action on the stem 26 capable of retracting the pistons 18 and 19 into the latch, cannot reach the angular position for abutment on the bottom 2.
  • This particularity provides the advantage that when the door is open it is not possible to turn the latch, for example by acting on it with intentional or inadvertent maneuvers, into the position in which it can be locked stably by the device 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)
EP04016341A 2003-08-06 2004-07-12 Schloss mit Drehfalle Withdrawn EP1505230A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20030482 2003-08-06
ITBO20030482 ITBO20030482A1 (it) 2003-08-06 2003-08-06 Perfezionamento ad una serratura a scrocco rotante.

Publications (1)

Publication Number Publication Date
EP1505230A1 true EP1505230A1 (de) 2005-02-09

Family

ID=33548844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04016341A Withdrawn EP1505230A1 (de) 2003-08-06 2004-07-12 Schloss mit Drehfalle

Country Status (2)

Country Link
EP (1) EP1505230A1 (de)
IT (1) ITBO20030482A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006084898A3 (de) * 2005-02-11 2006-11-23 Johnson Controls Gmbh Vorrichtung zur verriegelung und entriegelung, insbesondere der lehne eines sitzes, insbesondere eines kraftfahrzeugs
US9265185B2 (en) 2013-12-19 2016-02-16 Wistron Corporation Electronic device, assembling structure and assembling method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344532A (en) * 1942-09-09 1944-03-21 Sargent & Co Door latch
EP0201244A2 (de) * 1985-05-01 1986-11-12 Emhart Industries, Inc. Schliessvorrichtung
US5142890A (en) * 1990-06-06 1992-09-01 La Gard, Inc. Electro-mechanical lock with rotary bolt
WO2002059443A1 (en) * 2001-01-25 2002-08-01 Cisa S.P.A. Rotating spring-latch lock and corresponding selvage
US20030001397A1 (en) * 2001-06-28 2003-01-02 Mork Neil E. Vehicle compartment latch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344532A (en) * 1942-09-09 1944-03-21 Sargent & Co Door latch
EP0201244A2 (de) * 1985-05-01 1986-11-12 Emhart Industries, Inc. Schliessvorrichtung
US5142890A (en) * 1990-06-06 1992-09-01 La Gard, Inc. Electro-mechanical lock with rotary bolt
WO2002059443A1 (en) * 2001-01-25 2002-08-01 Cisa S.P.A. Rotating spring-latch lock and corresponding selvage
US20030001397A1 (en) * 2001-06-28 2003-01-02 Mork Neil E. Vehicle compartment latch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006084898A3 (de) * 2005-02-11 2006-11-23 Johnson Controls Gmbh Vorrichtung zur verriegelung und entriegelung, insbesondere der lehne eines sitzes, insbesondere eines kraftfahrzeugs
EP2335969A1 (de) * 2005-02-11 2011-06-22 Johnson Controls GmbH Vorrichtung zur Verriegelung und Entriegelung, insbesondere der Lehne eines Sitzes, insbesondere eines Kraftfahrzeugs
EP2335970A1 (de) * 2005-02-11 2011-06-22 Johnson Controls GmbH Vorrichtung zur Verriegelung und Entriegelung, insbesondere der Lehne eines Sitzes, insbesondere eines Kraftfahrzeugs
EP2335968A1 (de) * 2005-02-11 2011-06-22 Johnson Controls GmbH Vorrichtung zur Verriegelung und Entriegelung, insbesondere der Lehne eines Sitzes, insbesondere eines Kraftfahrzeugs
US8882161B2 (en) 2005-02-11 2014-11-11 Johnson Controls Gmbh Locking device with signal structure
US9265185B2 (en) 2013-12-19 2016-02-16 Wistron Corporation Electronic device, assembling structure and assembling method

Also Published As

Publication number Publication date
ITBO20030482A1 (it) 2005-02-07

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