EP1722113B1 - Mechanism for door shackles comprising a sealing ring and method of disassembling such a shackle - Google Patents

Mechanism for door shackles comprising a sealing ring and method of disassembling such a shackle Download PDF

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Publication number
EP1722113B1
EP1722113B1 EP06116488A EP06116488A EP1722113B1 EP 1722113 B1 EP1722113 B1 EP 1722113B1 EP 06116488 A EP06116488 A EP 06116488A EP 06116488 A EP06116488 A EP 06116488A EP 1722113 B1 EP1722113 B1 EP 1722113B1
Authority
EP
European Patent Office
Prior art keywords
sealing ring
shackle
support body
rotary element
door
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.)
Expired - Lifetime
Application number
EP06116488A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1722113A3 (en
EP1722113A2 (en
Inventor
Mario Zanoni
Bruno Zanoni
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.)
Zamet Italia Srl
Original Assignee
Zamet Italia Srl
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 Zamet Italia Srl filed Critical Zamet Italia Srl
Publication of EP1722113A2 publication Critical patent/EP1722113A2/en
Publication of EP1722113A3 publication Critical patent/EP1722113A3/en
Application granted granted Critical
Publication of EP1722113B1 publication Critical patent/EP1722113B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B3/00Fastening knobs or handles to lock or latch parts
    • E05B3/06Fastening knobs or handles to lock or latch parts by means arranged in or on the rose or escutcheon
    • E05B3/065Fastening knobs or handles to lock or latch parts by means arranged in or on the rose or escutcheon with spring biasing means for moving the handle over a substantial distance, e.g. to its horizontal position
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/02Striking-plates; Keepers; Bolt staples; Escutcheons
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04Spring arrangements in locks
    • E05B2015/0462Ring springs
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B3/00Fastening knobs or handles to lock or latch parts
    • E05B3/06Fastening knobs or handles to lock or latch parts by means arranged in or on the rose or escutcheon
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00Locks or fastenings with special structural characteristics
    • E05B63/0056Locks with adjustable or exchangeable lock parts

Definitions

  • the present invention relates to a mechanism for door shackles. It also concerns a method of disassembling such a mechanism.
  • mechanisms for door shackles enabling the rotation and return to position of said shackles are housed within a body provided with an outer covering elementto aesthetical purposes, generally made of brass or other precious material.
  • the outer cover of the mechanism often consists of two concentric portions having a different color or surface finishing (chroming, butter finish or other treatments).
  • the covering element covers only partially said body, which is also made of brass or other precious material and becomes the central portion of the cover arranged around the shackle.
  • the shackle mechanism is then applied onto the body during assembly.
  • An example of an easy-to-use mechanism for door shackles is described in Italian patent no. IT1.282.808 of 21.4.1994 issued to the Applicant, whose content is to be regarded as a substantial part of the present description to reference purposes, in particular as far as the elements constituting the mechanism for door shackles are concerned.
  • Document GB 2 312 934 A which can be considered as the closest prior art shows a mechanism for door shackles comprising a support body, a rotary element associated to a shackle and an elastic element defining an elastic return mechanism for the shackle.
  • the mechanism also comprises an elastic sealing ring associated to an operating end of the shackle.
  • the sealing ring has a first and second end with folded portions suitably shaped so as to separate the ends and thus to partially open the ring by exerting a thrust coplanar to said ring.
  • an end of the elastic return mechanism element is positioned over the shank of the handle. Details about a removal of the handle are not given in this document.
  • cylinders of door locks for houses or other premises are usually protected on the door side pointing outside, in order to increase lock safety; by means of a cylinder-covering element having a cap-like shape matching one of the two ends of the cylinder so as to house the latter within.
  • Said cylindercover also known in the field as "defender” or “security”, typically consists of a sub-plate made of a burglar-resistant material, generally hardened steel, covered to aesthetical purposes by a plate made of brass or other material.
  • the cylinder cover is then housed in its turn in the central hole of a support body and is provided on its inner edge with a peripheral projection preventing - once said cover is housed in operating position - its extraction through the central hole of the support body.
  • the support body can be, depending on the circumstances, a circular or oval washer surrounding the lock, or an oblong plate extending from the lock to the door shackle, and is anyhow covered in its turn to aesthetical purposes with a covering element made of brass or other precious material.
  • An outer cover consisting of two concentric portions having a different color or surface finishing can be provided also for the support body, the cover element thus covering only partially the support body made of precious material and constituting the central portion of the cover arranged around the cylinder cover.
  • the technical task underlying the present invention is to provide a mechanism for door shackles that can basically obviate the drawbacks referred to above.
  • an aim of the present invention is to provide a mechanism for door shackles that enables a significant reduction of manufacturing, assembly, storage and delivery costs.
  • Another aim of the present invention is to provide a mechanism that can be easily carried out.
  • a further aim is to considerably speed up and simplify assembly operations for door locks and shackles, thus enabling the assembly during installation and reducing stock of the various elements.
  • a further aim of the present invention is to provide a mechanism with a high flexibility, a high interchangeability for the various components and rapid combinations of different elements.
  • a final aim of the present invention is to provide a mechanism that enables an easy assembly and disassembly of the shackle from the mechanism also when the latter is mounted on the door.
  • a mechanism for door shackles 15 comprises a support body 2 to be fastened to a door and having a hole 3, a rotary element 16 associated to said support body 2 and having an engagement portion 16a to be associated to a shackle 15, and an elastic element 17 placed between the support body 2 and the rotary element 16 and having a first end 17a associated to an operating portion 18 of the support body 2 and a second end 17b associated to an operating portion 19 of the rotary element 16.
  • the support body 2, the rotary element 16 and the elastic element 17 define an elastic return mechanism 14 for a shackle 15.
  • the mechanism for door shackles 15 further comprises an elastic sealing ring 24 placed beside the rotary element 16 and to be movably associated to an operating end 15a of a shackle 15 so as to fasten said operating end 15a to said rotary element 16.
  • the mechanism 24 for door shackles 15 comprises also a covering device 1.
  • the covering device 1 comprises a support body 2 to be fastened to a door and having a central hole 3, and a first covering element 4 having an opening 5 and to be associated to the support body 2 so as to cover a first portion 2a of said body.
  • the first covering element 4 can be screwed onto a peripheral portion 6 of the support body 2 through corresponding threadings.
  • the covering device 1 further comprises a second covering element 7 having a central hole 8 corresponding to the central hole 3 of the support body 2.
  • the second covering element 7 is concentric with respect to the first covering element 4 and can be placed beside the latter in the central opening 5, and can be associated to the support body 2 so as to cover a second portion 2b of said body 2.
  • the second covering element 7 is basically disc-shaped and its mass is as small as possible.
  • the second covering element 7 and the first covering element 4 cover the whole front surface 9 of the support body 2.
  • the second covering element 7 has a peripheral portion placed between the support body 2 and the first covering element 4, and is therefore kept in position since it is clamped between said elements.
  • the support body 2 is provided with a housing 11 for the second covering element 7 and with an engagement portion 12, for instance a pin, to be associated to a corresponding engagement portion 13, for instance a hollow seat, of the second covering element 7 so as to prevent the reciprocal rotation in operating position.
  • the central hole 3 of the support body 2 is therefore designed to enable the passage of an operating end 15a of the shackle 15.
  • the device 1 further comprises a rotary element 16 associated to the support body 2 and having an engagement portion 16a that can be associated to the operating end 15a of the shackle 15, and an elastic element 17, for instance a coil spring, placed between the support body 2 and the rotary element 16.
  • the elastic element 17 has a first end 17a associated to an operating portion 18 of the support body 2, and a second end 17b associated to an operating portion 19 of the rotary element 16.
  • the support body 2, the rotary element 16 and the elastic element 17 therefore define an elastic return mechanism 14 for a shackle 15, which is thus integrated and should not be applied later during assembly of the mechanism 14.
  • Said embodiment of the elastic return mechanism 14 using only said three elements, i.e. the support body 2, the rotary element 16 and the elastic element 17, is enabled by a free choice of the material which the support body 2 and the rotary element 16 are made of.
  • the embodiment of the elastic return mechanism 14 using only three elements requires the presence on the support body 2 and on the rotary element 16 of a series of operating portions with undercuts, which would not be easily obtained from a technical point of view by molding with traditional materials such as brass.
  • suitable metal alloys for instance "Zamak” (zinc alloy), or plastic for the support body 2, thus enables to achieve the result referred to above.
  • the return mechanism 14 can therefore be applied also to known covering elements covering the support body 2 wholly with one element, since here again the support body 2 can be made of any suitable material. It is further provided for known elements such as gaskets 20 and a control rod 22, which is fitted into the door and connects the operating end 15a of the shackle 15 referred to above to a corresponding operating end of an opposite second shackle.
  • the support body 2 is provided with some conventional threaded holes 23, arranged around the central hole 3, for assembling said support body 2 onto a door (not shown in the figure) by means of known assembly elements.
  • the support body 2 can thus be mounted onto the door by means of fastening screws housed in suitable holes made in the door parallel to the rotation axis of the shackle 15, which screws connect two corresponding support bodies 2 mounted on both sides of the door.
  • the size of the fastening screws is suitably chosen depending on the thickness of the door onto which they have to be mounted.
  • the support body 2 comprises a basically circular washer, which could however also be an elliptical washer or an oblong plate extending from the lock to the shackle 15, as is known per se and therefore not shown in the accompanying figures.
  • the first covering element 4 and the second covering element 7 have a different surface appearance, for instance a different color or a different surface treatment.
  • At least the first 4 and the second covering element 7 can be made of brass or other precious material, whereas the support body 2 and the rotary element 16 not being visible from outside can be advantageously made of cheaper materials, such as metal alloys, "Zamak” (commercial name of a zinc-aluminum-magnesium-copper alloy), or plastic.
  • a covering device 1 according to the present invention works as follows.
  • the elastic return mechanism 14 of the shackle 15 can be assembled straight after manufacturing its components and be therefore supplied ready-to-use to the installer. The remaining elements can be advantageously all stored and delivered to the installer separately, therefore unassembled.
  • the mechanism 14 and the covering device 1 it is only necessary to associate the support body 2, the spring 17 and the rotary element 16, which are pre-assembled, to the second covering element 7, coupling the corresponding engagement portions 12, 13 so as to avoid reciprocal rotation.
  • the first element 4 is now screwed onto the support body 2, thus blocking the second covering element 7 in position.
  • the shackle 15 is then associated to the rotary element 16 and to the control rod 22, and the return mechanism 14 with the covering device 1 can thus be mounted onto the door.
  • the mechanism for door shackles 15 as shown above comprises, an elastic sealing ring 24 (instead of the traditional "seizer” sealing ring) and a stop element 25.
  • the stop element 25 is designed to keep the elastic sealing ring 24 in contact with the rotary element 16 while fitting the operating end 15a of the shackle 15 into the elastic sealing ring 24.
  • the stop element 25 can comprise a plate to be fastened to the rotary element 16, for instance by means of four pins 29 placed on the rotary element and four fastening holes 30 on the stop element 25.
  • the stop element 25 could be made integrally with the rotary element 16, and therefore as one piece, finding a suitable arrangement enabling the sealing ring 24 to be fitted into its seat.
  • the sealing ring 24 is elastic and is placed beside the rotary element 16 and can be movably associated to an operating end 15a of the shackle 15 so as to fasten said operating end 15a to the rotary element 16.
  • Figure 11 shows a different shape of the ring 24, and further shape variants are obviously possible.
  • the elastic sealing ring 24 is provided with a first 24a and a second end 24b having folded portions, suitably shaped so as to separate the ends 24a, 24b and thus partially open the ring 24 by exerting a thrust coplanar to said ring 24.
  • the sealing ring 24 is further provided with at least a low resistance portion 24c (for instance having a small section or a suitable shape reducing its resistance) designed to increase the elasticity of the ring 24 and thus to make its opening easier.
  • a low resistance portion 24c for instance having a small section or a suitable shape reducing its resistance
  • the elastic sealing ring 24 can be obtained by shearing or by means of a threadlike element suitable folded so as to achieve a suitable shape, which can also differ from the one shown in the figures.
  • the rotary element 16 is advantageously equipped with a plurality of positioning elements 26 to be movably associated to the elastic sealing ring 24, which is suitably shaped so as to be associated to the positioning elements 26. Said positioning elements 26 thus enable to fasten the elastic sealing ring 24 rotably together with the rotary element 16, thus preventing reciprocal rotations and enabling in the meanwhile a partial opening of the elastic sealing ring 24.
  • the support body 2 is advantageously provided with a side opening 27 designed to enable the introduction, when the mechanism is mounted on a door, of a spacing element 28 parallel to the elastic sealing ring 24, so as to enable a partial opening of the elastic sealing ring 24 and the release of the operating end 15a of the shackle 15.
  • said side opening 27 should be arranged so as to be, when the mechanism is in its rest position, on the two ends 24a, 24b of the elastic sealing ring 24.
  • said mechanism can comprise a spacing element 28 having an end 28a suitably matching the folded portions of the ends 24a, 24b of the ring 24 and designed to fit into the side opening 27 of the support body 2 so as to allow the shackle to be disassembled.
  • the shackle 15 can be very easily mounted, since it is only necessary to assemble the mechanism 14, to mount it onto a door and then to fit the shackle 15 into the mechanism 14 so that the end 15a pushes against the elastic sealing ring 14, slightly opening the latter and thus blocking it around said end 15a, which has a known peripheral groove.
EP06116488A 2003-03-07 2004-01-16 Mechanism for door shackles comprising a sealing ring and method of disassembling such a shackle Expired - Lifetime EP1722113B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000026A ITBS20030026A1 (it) 2003-03-07 2003-03-07 Dispositivo di copertura per meccanismi di maniglie e di serrature per porte.
EP04425018A EP1455035A3 (en) 2003-03-07 2004-01-16 Covering device and mechanism for door handles

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04425018.1 Division 2004-01-16
EP04425018A Division EP1455035A3 (en) 2003-03-07 2004-01-16 Covering device and mechanism for door handles

Publications (3)

Publication Number Publication Date
EP1722113A2 EP1722113A2 (en) 2006-11-15
EP1722113A3 EP1722113A3 (en) 2008-01-23
EP1722113B1 true EP1722113B1 (en) 2011-03-16

Family

ID=32800669

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04425018A Withdrawn EP1455035A3 (en) 2003-03-07 2004-01-16 Covering device and mechanism for door handles
EP06116488A Expired - Lifetime EP1722113B1 (en) 2003-03-07 2004-01-16 Mechanism for door shackles comprising a sealing ring and method of disassembling such a shackle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04425018A Withdrawn EP1455035A3 (en) 2003-03-07 2004-01-16 Covering device and mechanism for door handles

Country Status (4)

Country Link
EP (2) EP1455035A3 (it)
AT (1) ATE502219T1 (it)
DE (1) DE602004031884D1 (it)
IT (1) ITBS20030026A1 (it)

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DE102005001445A1 (de) * 2005-01-12 2006-07-20 Hewi Heinrich Wilke Gmbh Rückstellvorrichtung
DE202005015858U1 (de) * 2005-10-10 2006-01-05 Kramme, Wolfgang Türbeschlag
EP1882798B1 (de) * 2006-07-27 2010-02-10 ALMAR s.p.a. Tür- oder Fensterbeschlag
DE502008002242D1 (de) * 2008-10-31 2011-02-17 Almar S P A Tür- oder Fensterbeschlag
IT1392125B1 (it) * 2008-11-20 2012-02-22 Zamet Italia S R L Dispositivo per maniglie di porte
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CN101915013B (zh) * 2010-08-04 2012-10-10 傅海 一种执手
PL2778319T3 (pl) * 2013-03-15 2016-08-31 Manuel Vollmer Rozeta do okucia drzwiowego i układ klamki zawierający taką rozetę
WO2014193321A1 (en) * 2013-05-28 2014-12-04 Ucak Koltuk Uretimi Sanayi Ve Ticaret Anonim Sirketi Lock system for a plane seat dining table
DE102014105333A1 (de) * 2014-04-15 2015-10-15 Dorma Deutschland Gmbh Beschlagvorrichtung für ein Türblatt einer Tür
KR101803511B1 (ko) * 2016-02-18 2017-11-30 주식회사 아마다스 디지털 도어락의 인터페이스 모듈장치
ITUA20162603A1 (it) * 2016-04-14 2017-10-14 Frosio Bortolo S R L Rosetta e metodo di montaggio
GB2549960A (en) * 2016-05-04 2017-11-08 Joseph Giles Ltd Handle system for a closure
RU2648633C1 (ru) * 2016-11-28 2018-03-26 Михаил Валерьевич Прудовский Узел крепления дверной ручки
CN106677610A (zh) * 2016-12-20 2017-05-17 广东合和建筑五金制品有限公司 拨叉执手
TWM547016U (zh) * 2017-04-18 2017-08-11 Taiwan Fu Hsing Industrial Co Ltd 鎖具結構之回彈裝置
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RU2692783C1 (ru) * 2018-07-03 2019-06-27 Виталий Дмитриевич Горчаков Накладка для защиты замкового элемента

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Also Published As

Publication number Publication date
EP1722113A3 (en) 2008-01-23
DE602004031884D1 (de) 2011-04-28
ITBS20030026A1 (it) 2004-09-08
EP1455035A3 (en) 2006-01-04
EP1455035A2 (en) 2004-09-08
ATE502219T1 (de) 2011-04-15
EP1722113A2 (en) 2006-11-15

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