EP2387053A1 - Sicherheitsbrückenkontaktstecker - Google Patents

Sicherheitsbrückenkontaktstecker Download PDF

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Publication number
EP2387053A1
EP2387053A1 EP11160522A EP11160522A EP2387053A1 EP 2387053 A1 EP2387053 A1 EP 2387053A1 EP 11160522 A EP11160522 A EP 11160522A EP 11160522 A EP11160522 A EP 11160522A EP 2387053 A1 EP2387053 A1 EP 2387053A1
Authority
EP
European Patent Office
Prior art keywords
contact
safety electric
seats
electric contact
leaf
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Withdrawn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
EP11160522A
Other languages
English (en)
French (fr)
Inventor
Andrea Traunero
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.)
Astra Srl
Original Assignee
Astra 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 Astra Srl filed Critical Astra Srl
Publication of EP2387053A1 publication Critical patent/EP2387053A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
    • H01H9/085—Arrangements to facilitate replacement of a switch, e.g. cartridge housing contact separation effected by removing contact carrying element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00—Coupling parts supported only by co-operation with counterpart
    • H01R31/08—Short-circuiting members for bridging contacts in a counterpart

Definitions

  • the present invention relates to a safety electric contact as defined in the preamble of claim 1.
  • removable bridge safety contacts are widely used to enable/disable certain features, e.g. to deny electric consent to start the lift until an inner door of the car is wholly closed.
  • removable bridge safety contacts in which the contact elements acted upon by the free end of the terminals of the removable contact bridge are not supported by a straight leaf spring, but at the apex of a cone formed by a leaf spring wound into a conical coil.
  • the problem at the basis of the present invention is of devising a removable bridge safety electric contact, suitable for the structure of a lift system, that has such structural and functional characteristics as to fulfill the above need, while obviating the above prior art drawbacks.
  • numeral 1 generally designates a removable bridge safety electric contact of the invention.
  • the removable bridge safety electric contact 1 comprises:
  • Contact elements 6 supported by corresponding contact springs 7 are positioned in the receiving body 4. These contact elements 6 are adapted to be contacted by the free ends of the rod-like contacts 3 of the contact bridge 2, when the contact bridge 2 is engaged with the receiving body 4.
  • each contact element 6 is housed with its contact spring 7 in its respective seat 5 of the receiving body 4.
  • these seats 5 define in the receiving body 4 corresponding independent housings separated by a partition wall 13. Therefore, the receiving body 4 has tubular containing elements defined therein, for containing and guiding corresponding contact springs 7 in the elastic reversible relative movement of the first portion 7a towards the second portion 7b of the spring 7, in the direction X-X, while preventing the spring in a first seat 5 from inadvertently contacting the contact spring 7 in the other seat 5.
  • Each of these contact springs 7 includes a leaf having a small thickness S, indicatively of the order of 0.08 ⁇ 0,15 mm, preferably 0.10 mm, made from a resilient spring material.
  • the leaf has a preset width L, indicatively of the order of 3 ⁇ 12 mm, preferably 7 mm, well below its length, so that each leaf has the conformation of a strip portion extending in a prevailing longitudinal direction.
  • each leaf which define a first portion 7a with its contact element 6 fixed thereto and a second portion 7b, designed for connection to conductor means 12 of an electric circuit.
  • this is embodied by the provision of a through hole 11 adapted for engagement of the shank of a screw 12 of a terminal.
  • first portion 7a and the second portion 7b form the distal end portions of the leaf 7.
  • each blade 7 i.e. a section between the first portion 7a and the second portion 7b, is folded into substantially intermediate sections 7c alternating with and connected by curved sections 7d.
  • the intermediate portion I of the leaf 7 has a wavy profile of boustrophedon type, i.e. serpentine profile, in which the curved sections 7d act as flexural springs to allow the first end portion 7a of the leaf 7 to elastically and reversibly move towards the second end portion 7b in a direction X-X as the intermediate portions 7c of the intermediate portion I are more compacted in the direction X-X.
  • the above mentioned intermediate sections 7c of the leaf 7 are substantially straight sections.
  • each leaf 7 acts as an elastic bellows to impart an elastic accordion-like behavior to the leaf 7, whereby the first portion 7a may be reversibly moved towards the second portion 7b in said direction X-X against a predetermined oppositely-directed elastic action exerted by the intermediate portion I of the leaf 7.
  • the leaf 7 is made of a spring material adapted for electric current transmission, such as an AISI 301 austenitic stainless steel or beryllium copper.
  • the leaf 7 extends in the above mentioned direction X-X with a wavy profile of boustrophedon type between the first portion 7a and the second portion 7b, which are connected to the intermediate portion I by curved connecting sections 7e and 7f respectively.
  • each leaf spring 7 is inclined with respect to the intermediate portion I to define a wall that is substantially perpendicular to said direction X-X.
  • said first portion 7a is proximate the front end of its seat 5 through which the rod-like contact 3 of the contact bridge 2 will be introduced.
  • each contact element 6 is fixed to the first portion 7a of the contact spring 7 by riveting, a through hole 8 being provided for this purpose in the first portion 7a of the leaf 7.
  • contact element 6 may be also fixed to the first portion 7a of the leaf 7 otherwise than by the above mentioned riveting, such as by welding or by screw or bolt connection.
  • each contact leaf spring 7 comprises more than two substantially straight sections 7c, preferably three substantially straight sections, connected in pairs by corresponding curved sections 7d. This imparts an effective elastic bellows or accordion-like behavior to the intermediate portion I, while avoiding distortion or warping of the first portion 7a as it moves towards the second portion 7b due to the action exerted thereupon by the corresponding rod-like contact 3 of the contact bridge 2.
  • curved sections 7d extend throughout the width S of the leaf 7 substantially perpendicular to the longitudinal direction of extension of the leaf.
  • the tubular containing elements defined by said seats 5 allow the contact springs 7 to be guided at the curved sections 7d of the contact springs.
  • the seats 5 have such a size as to ensure the provision of a predetermined side clearance, as measured in the direction of width L of each contact spring 7, namely in a direction transverse to said direction X-X, passing through both contact springs 7.
  • the seats 5 have protrusions 14 in such positions as to be able to contact their respective contact springs 7 at their curved sections 7d.
  • the protrusions 14 ensure that contact between each contact spring 7 and the wall of its seat 5, particularly of the tubular element defined by such seat, occurs at a limited surface portion, namely the surface defined by the end of the protrusions 14, to reduce friction between the contact spring 7 and its seat 5 during said reversible relative movement of the first portion 7a towards the second portion 7b, in the direction X-X.
  • the protrusions 14 extend:
  • these opposite sides are the sides that extend substantially parallel to the width L of the contact springs 7.
  • these protrusions 14 are in such positions as to be substantially at the center line of the tubular containing elements defined by the seats 5.
  • these protrusions 14 which is designed to contact said curved sections 7d of the contact springs 7 is a rounded surface.
  • each contact spring 7 is supported and guided substantially along the longitudinal center axis defined with reference to the width L of the leaf, by two opposite rounded protrusions. Due to the above, and to the above mentioned side clearance, as the first portion 7a of the contact spring 7 reversibly moves towards the second portion 7b, the spring is substantially free to oscillate/swing in its seat 5 with respect to a center portion of the seat, in the direction of its width L with respect to the rounded surface of the contact ribs. This allows each contact spring 7 to overcome any stick slip caused by friction of the longitudinal sides of the contact spring, i.e. the sides of the contact spring extending in said direction X-X and spaced by said width L, against the wall of the seat 5.
  • the straight sections 7c tend to move from a more inclined configuration to a more vertical, less inclined configuration.
  • This increases the height dimension of the contact spring 7 as it moves to its more compressed configuration, upon introduction of the contact terminals 3 into the seats 5.
  • the distance between the opposite portions of the seat 5 designed to contact said curved sections 7d of the contact springs 7, i.e. the rounded protrusions 14 increases, in the direction X-X from the front wall with the front opening for the introduction of the contact terminal 3 towards the opposite bottom wall of the seat 5.
  • this is obtained by the provision of ribs 14 that are inclined in the direction X-X to project from their respective walls to a greater extent at the front wall with the front opening for introduction of the contact terminal 3.
  • the removable bridge safety electric contact of the present invention fulfills the above mentioned need and also obviates the prior art drawbacks as set out in the introduction of this disclosure. Therefore, while the contact springs in the receiving body have such a minimum cross section as to ensure adequate passage of current, they still afford a considerable reduction of the dimensions of the seat in which each contact spring is to be housed, as compared with prior art contact devices involving the use of leaf contact springs. As a result, the size and dimensions of the receiving body of the removable bridge safety electric contact may be also considerably reduced.
  • a further advantage of the removable bridge safety electric contact of the present invention is its unique structural simplicity.
  • Yet another advantage of the removable bridge safety electric contact of the present invention is the possibility of manufacturing the contact spring by bending and blanking from a continuous strip, thereby achieving considerable savings in terms of manufacturing costs.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Thermally Actuated Switches (AREA)
EP11160522A 2010-04-15 2011-03-30 Sicherheitsbrückenkontaktstecker Withdrawn EP2387053A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2010A000649A IT1400227B1 (it) 2010-04-15 2010-04-15 Molla di contatto per contatto di sicurezza e contatto di sicurezza comprendente tale molla

Publications (1)

Publication Number Publication Date
EP2387053A1 true EP2387053A1 (de) 2011-11-16

Family

ID=43016105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11160522A Withdrawn EP2387053A1 (de) 2010-04-15 2011-03-30 Sicherheitsbrückenkontaktstecker

Country Status (3)

Country Link
EP (1) EP2387053A1 (de)
CN (1) CN102280308A (de)
IT (1) IT1400227B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131109A1 (it) * 2013-07-02 2015-01-03 Astra S R L Ponte asportabile per un contatto elettrico di sicurezza
US20150333595A1 (en) * 2013-01-26 2015-11-19 Brose Fahrzeugteile Gmbh & Co. Kg, Wuerzburg Rotary electric machine
EP3201650A1 (de) * 2014-10-02 2017-08-09 Valeo Schalter und Sensoren GmbH Fensterkappe für das gehäuse einer abtastenden optoelektronischen messvorrichtung und gehäuse mit einer solchen
CN107337067A (zh) * 2016-04-28 2017-11-10 阿斯特拉有限公司 用于电梯设备门的安全电接触器
IT201800005100A1 (it) * 2018-05-07 2019-11-07 Sistema di controllo del funzionamento di un apparato dotato di mezzi motori controllati e regolati elettricamente

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102646523A (zh) * 2012-04-28 2012-08-22 埃克森塞弗(苏州)电梯部件科技有限公司 一种肯定离开触点

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1280497A (fr) * 1960-02-26 1961-12-29 Hazemeijer Co Interrupteur pouvant couper en charge
DE1201449B (de) * 1962-08-31 1965-09-23 Krone Kg Lastschalter
EP0537751A1 (de) * 1991-10-17 1993-04-21 Yazaki Corporation Wasserdichter Schaltsteckverbinder
EP1296341A2 (de) * 2001-09-25 2003-03-26 Yazaki Corporation Handhebel für einen Einsteckbare Unterbrechungsvorrichtung

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US2844644A (en) * 1956-12-20 1958-07-22 Gen Electric Detachable spring contact device
DE1055088B (de) * 1957-01-28 1959-04-16 Heliowatt Werke Elek Zitaets A Einrichtung zur Einstellung eines Kontakttraegers gegenueber einem anderen Kontakttraeger
NL270678A (de) * 1960-10-29
FR1356966A (fr) * 1963-01-14 1964-04-03 Controls France S A Perfectionnements aux lames de contact pour dispositifs de commande d'ouverture et de fermeture de circuits électriques et dispositifs en comportant application
US3737591A (en) * 1971-10-27 1973-06-05 Alarm Products Int Inc Trap switch with elongated mounting wire for completing continuity circuit
US4912290A (en) * 1987-08-25 1990-03-27 Honda Giken Kogyo Kabushiki Kaisha Electric contact structure for a locking cylinder
DE4331320C2 (de) * 1993-09-15 1995-09-07 Hagenuk Telecom Gmbh Aufnahmegehäuse für einen Akkumulator
US5513996A (en) * 1994-09-20 1996-05-07 Motorola, Inc. Clip and method therefor
US5612520A (en) * 1995-06-07 1997-03-18 Ast Research, Inc. Suspend switch for portable electronic equipment
DE29601965U1 (de) * 1996-02-06 1996-04-04 Detewe-Deutsche Telephonwerke Ag & Co, 10997 Berlin Kontaktfeder
FR2814858B1 (fr) * 2000-10-02 2002-12-20 Cit Alcatel Connecteur a ressort pour la connexion electrique de pistes d'un ecran d'affichage avec un circuit electrique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1280497A (fr) * 1960-02-26 1961-12-29 Hazemeijer Co Interrupteur pouvant couper en charge
DE1201449B (de) * 1962-08-31 1965-09-23 Krone Kg Lastschalter
EP0537751A1 (de) * 1991-10-17 1993-04-21 Yazaki Corporation Wasserdichter Schaltsteckverbinder
EP1296341A2 (de) * 2001-09-25 2003-03-26 Yazaki Corporation Handhebel für einen Einsteckbare Unterbrechungsvorrichtung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150333595A1 (en) * 2013-01-26 2015-11-19 Brose Fahrzeugteile Gmbh & Co. Kg, Wuerzburg Rotary electric machine
US10298088B2 (en) 2013-01-26 2019-05-21 Brose Fahrzeugteile Gmbh & Co. Kg, Wuerzburg Rotary electric machine
US10476345B2 (en) 2013-01-26 2019-11-12 Brose Fahrzeugteile Gmbh & Co. Kg, Wuerzburg Rotary electric machine
ITMI20131109A1 (it) * 2013-07-02 2015-01-03 Astra S R L Ponte asportabile per un contatto elettrico di sicurezza
EP3201650A1 (de) * 2014-10-02 2017-08-09 Valeo Schalter und Sensoren GmbH Fensterkappe für das gehäuse einer abtastenden optoelektronischen messvorrichtung und gehäuse mit einer solchen
EP3201650B1 (de) * 2014-10-02 2022-05-18 Valeo Schalter und Sensoren GmbH Fensterkappe für das gehäuse einer abtastenden optoelektronischen messvorrichtung und gehäuse mit einer solchen
CN107337067A (zh) * 2016-04-28 2017-11-10 阿斯特拉有限公司 用于电梯设备门的安全电接触器
CN107337067B (zh) * 2016-04-28 2021-03-16 阿斯特拉有限公司 用于电梯设备门的安全电接触器
IT201800005100A1 (it) * 2018-05-07 2019-11-07 Sistema di controllo del funzionamento di un apparato dotato di mezzi motori controllati e regolati elettricamente

Also Published As

Publication number Publication date
IT1400227B1 (it) 2013-05-24
ITMI20100649A1 (it) 2011-10-16
CN102280308A (zh) 2011-12-14

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