EP3509081B1 - Rotary disconnector with padlockable actuation knob - Google Patents

Rotary disconnector with padlockable actuation knob Download PDF

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Publication number
EP3509081B1
EP3509081B1 EP19150016.4A EP19150016A EP3509081B1 EP 3509081 B1 EP3509081 B1 EP 3509081B1 EP 19150016 A EP19150016 A EP 19150016A EP 3509081 B1 EP3509081 B1 EP 3509081B1
Authority
EP
European Patent Office
Prior art keywords
knob
seat member
disconnector
padlock
padlock seat
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.)
Active
Application number
EP19150016.4A
Other languages
German (de)
French (fr)
Other versions
EP3509081A1 (en
Inventor
Bosatelli Domenico
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.)
Gewiss SpA
Original Assignee
Gewiss 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 Gewiss SpA filed Critical Gewiss SpA
Publication of EP3509081A1 publication Critical patent/EP3509081A1/en
Application granted granted Critical
Publication of EP3509081B1 publication Critical patent/EP3509081B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1054—Means for avoiding unauthorised release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
    • H01H9/283—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock the part being removable
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs

Definitions

  • the present invention relates to a rotary disconnector with lockable actuation knob.
  • Industrial electrical breakers which include a rotating switch with a rotatable actuation knob within a base and are provided with closure systems to prevent their unauthorized or accidental operation.
  • a simple system for facilitating the locking of the disconnector is to provide openings in a portion of the rotary breaker and in the base, where these openings can be aligned when the breaker is set to a selected position, usually the "OFF" position. In this manner, the shackle of a padlock can be passed through these aligned openings and can be locked with a key so as to prevent the rotation of the rotating switch with respect to the base.
  • a problem with the locking method described above is that the openings for the shackle of the padlock can constitute an accumulation point for dust, dirt and moisture which can enter the breaker.
  • Enclosed disconnectors which are actuated by means of a rotating knob and are provided with systems for applying one or more padlocks, in which the shackle of the padlock does not have to enter holes provided in the base.
  • a disconnector manufactured by the SCAME company is known in which three holes for a corresponding number of padlocks are provided directly in the knob and on the cut-out plate
  • Another type of disconnector manufactured by the SOCOMEC company, is provided with a knob in which a movable member with holes for three padlocks is pivoted. The member can rotate to allow access to the holes for the insertion of one or more padlocks.
  • a disconnector manufactured by the ABB company has a movable member hinged to a knob, the movable member is provided with holes for three padlocks.
  • the movable can rotate and can cause the holes to be accessible for the insertion of one or more padlocks.
  • US2015221459 discloses disconnect operating handles for circuit breakers configured with a rotary handle attached to an inwardly oriented shaft that connects to a gear assembly that translates rotational input to linear input.
  • the disconnect operating handles include pivoting lockout levers that can automatically "pop” out to expose the lockout space for a padlock when a user touches the lever in an appropriate location.
  • the aim of the present invention is to provide an improved rotary disconnector with a lockable actuation knob, that constitutes an advantageous alternative with respect to the prior art lockable disconnectors or breakers.
  • an object of the invention is to provide a rotary disconnector that has an improved aesthetic appearance.
  • Another object of the invention is to provide a rotary disconnector to which it is possible to apply one or more padlocks simultaneously with a quick and easy operation.
  • a rotary disconnector with lockable actuation knob comprising a casing provided with a cover in which a seat for an actuation knob is formed; said knob actuating a bar which actuates members of the disconnector; said knob rotating between at least two operating positions: an open position and a closed position; said open position corresponding to an open position of the contacts of the disconnector, in which there is no flow of current, said closed position corresponding to a closed position of the contacts of the disconnector, in which there is flow of current between the contacts; a padlock seat member being associated to said knob and accommodating the shackle of one or more padlocks; said padlock seat member translating with respect to said knob between two operating positions: a released position, in which said padlock seat member is retracted into said knob and allows the rotation thereof between the open and closed positions, and a locked position, in which the padlock seat member is partially extracted from said knob and locks said knob in one of the open or closed positions; by
  • the rotary disconnector according to the invention includes a casing 2 provided with a cover 3; a recess 4 is formed in the cover 3 for an actuation knob 5.
  • the knob 5 actuates a bar 6 which actuates the members of the disconnector, which are not visible in the figures.
  • the knob 5 rotates between at least two operating positions: an open position, visible in Figure 1 , and a closed position, visible in Figure 2 .
  • the open position corresponds to an open position of the contacts of the disconnector, in which there is no flow of current, and is termed position "O".
  • the closed position corresponds to a closed position of the contacts of the disconnector, in which there is flow of current between the contacts, and is termed position "I".
  • the disconnector includes a padlock seat member 7 which is coupled to the knob 5 and can accommodate the shackle 8 of one or more padlocks 9.
  • the padlock seat member 7 translates with respect to the knob 5 between two operating positions: a released position, in which the padlock seat member 7 is retracted into the knob 5 and allows its rotation between the positions O and I, and a locked position, in which the padlock seat member 7 is partially extracted from the knob and locks it in one of the positions O or I.
  • the padlock seat member 7 By inserting the shackle 8 of one or more padlocks 9 in the padlock seat member 7, the padlock seat member 7 is prevented from retracting into the knob 5, which is therefore locked in one of the positions O or I.
  • the padlock seat member 7 has a tab 71 which can engage one of two seats 10 and 11 which are formed in the recess 4 of the cover 3 and correspond respectively to the positions O and I of the knob 5.
  • the padlock seat member 7 is also provided with a slot 72 which is extended diagonally and radially, with respect to the direction of motion of the knob 5, and engages at least one fixed member 51, which is integral with the knob 5, so that the padlock seat member 7 can move radially and vertically.
  • the padlock seat member 7 has a number of holes 73, in the specific case three, which can accommodate the shackle 8 of one or more padlocks 9.
  • the translatable member is assembled in the knob itself and allows to lock the rotation of the knob, and therefore of the disconnector, in the two positions I (ON) or O (OFF).
  • An advantage of the present invention is constituted by the improved aesthetic appearance of the product, because the holes of the padlock member remain hidden from view when the locking system is not used.
  • a further advantage is constituted by the fact that the holes for the padlocks are all aligned on the same plane.
  • the materials used, as well as the dimensions, may of course be any according to the requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Description

  • The present invention relates to a rotary disconnector with lockable actuation knob.
  • Industrial electrical breakers are known which include a rotating switch with a rotatable actuation knob within a base and are provided with closure systems to prevent their unauthorized or accidental operation.
  • A simple system for facilitating the locking of the disconnector is to provide openings in a portion of the rotary breaker and in the base, where these openings can be aligned when the breaker is set to a selected position, usually the "OFF" position. In this manner, the shackle of a padlock can be passed through these aligned openings and can be locked with a key so as to prevent the rotation of the rotating switch with respect to the base.
  • A problem with the locking method described above is that the openings for the shackle of the padlock can constitute an accumulation point for dust, dirt and moisture which can enter the breaker.
  • Enclosed disconnectors are known which are actuated by means of a rotating knob and are provided with systems for applying one or more padlocks, in which the shackle of the padlock does not have to enter holes provided in the base.
  • A disconnector manufactured by the SCAME company is known in which three holes for a corresponding number of padlocks are provided directly in the knob and on the cut-out plate
  • Another type of disconnector, manufactured by the SOCOMEC company, is provided with a knob in which a movable member with holes for three padlocks is pivoted. The member can rotate to allow access to the holes for the insertion of one or more padlocks.
  • A disconnector manufactured by the ABB company has a movable member hinged to a knob, the movable member is provided with holes for three padlocks. The movable can rotate and can cause the holes to be accessible for the insertion of one or more padlocks.
  • US2015221459 discloses disconnect operating handles for circuit breakers configured with a rotary handle attached to an inwardly oriented shaft that connects to a gear assembly that translates rotational input to linear input. The disconnect operating handles include pivoting lockout levers that can automatically "pop" out to expose the lockout space for a padlock when a user touches the lever in an appropriate location.
  • The aim of the present invention is to provide an improved rotary disconnector with a lockable actuation knob, that constitutes an advantageous alternative with respect to the prior art lockable disconnectors or breakers.
  • Within the scope of this aim, an object of the invention is to provide a rotary disconnector that has an improved aesthetic appearance.
  • Another object of the invention is to provide a rotary disconnector to which it is possible to apply one or more padlocks simultaneously with a quick and easy operation.
  • This aim, these objects and others which will become better apparent hereinafter are achieved by a rotary disconnector with lockable actuation knob, comprising a casing provided with a cover in which a seat for an actuation knob is formed; said knob actuating a bar which actuates members of the disconnector; said knob rotating between at least two operating positions: an open position and a closed position; said open position corresponding to an open position of the contacts of the disconnector, in which there is no flow of current, said closed position corresponding to a closed position of the contacts of the disconnector, in which there is flow of current between the contacts; a padlock seat member being associated to said knob and accommodating the shackle of one or more padlocks; said padlock seat member translating with respect to said knob between two operating positions: a released position, in which said padlock seat member is retracted into said knob and allows the rotation thereof between the open and closed positions, and a locked position, in which the padlock seat member is partially extracted from said knob and locks said knob in one of the open or closed positions; by inserting a shackle of one or more padlocks in said padlock seat member said padlock seat member is prevented from retracting into said knob, which is locked in one of said open or closed positions; said disconnector being characterized in that said padlock seat member has a slot which is extended diagonally and radially, with respect to the rotary motion of the knob, and engages at least one fixed member, which is integral with said knob, said padlock seat member moving radially and vertically.
  • Further characteristics and advantages will become better apparent from the description of preferred but not exclusive embodiments of the invention, illustrated by way of non-limiting example in the accompanying drawings, wherein:
    • Figure 1 is a partially sectional perspective view of the rotary disconnector according to the present invention, shown in the open position (O) with a padlock applied;
    • Figure 2 is a view, similar to the preceding one, showing the disconnector in the closed position (I);
    • Figure 3 is a top view of the disconnector without the actuation knob;
    • Figure 4 is a partially sectional perspective view of the rotary disconnector, shown in the open position (O) without a padlock;
    • Figure 5 is a perspective view of the rotary disconnector, shown in the open position (O) without a padlock.
  • With reference to the cited figures, the rotary disconnector according to the invention, generally designated by the reference numeral 1, includes a casing 2 provided with a cover 3; a recess 4 is formed in the cover 3 for an actuation knob 5.
  • The knob 5 actuates a bar 6 which actuates the members of the disconnector, which are not visible in the figures. The knob 5 rotates between at least two operating positions: an open position, visible in Figure 1, and a closed position, visible in Figure 2.
  • The open position corresponds to an open position of the contacts of the disconnector, in which there is no flow of current, and is termed position "O".
  • The closed position corresponds to a closed position of the contacts of the disconnector, in which there is flow of current between the contacts, and is termed position "I".
  • According to the present invention, the disconnector includes a padlock seat member 7 which is coupled to the knob 5 and can accommodate the shackle 8 of one or more padlocks 9.
  • The padlock seat member 7 translates with respect to the knob 5 between two operating positions: a released position, in which the padlock seat member 7 is retracted into the knob 5 and allows its rotation between the positions O and I, and a locked position, in which the padlock seat member 7 is partially extracted from the knob and locks it in one of the positions O or I.
  • By inserting the shackle 8 of one or more padlocks 9 in the padlock seat member 7, the padlock seat member 7 is prevented from retracting into the knob 5, which is therefore locked in one of the positions O or I.
  • The locked position of the padlock seat member 7 is visible in Figures 1 and 2.
  • The padlock seat member 7 has a tab 71 which can engage one of two seats 10 and 11 which are formed in the recess 4 of the cover 3 and correspond respectively to the positions O and I of the knob 5.
  • The padlock seat member 7 is also provided with a slot 72 which is extended diagonally and radially, with respect to the direction of motion of the knob 5, and engages at least one fixed member 51, which is integral with the knob 5, so that the padlock seat member 7 can move radially and vertically.
  • The padlock seat member 7 has a number of holes 73, in the specific case three, which can accommodate the shackle 8 of one or more padlocks 9.
  • The operation of the rotary disconnector according to the present invention is as follows.
  • In position O, by gripping the two side walls of the member 7 and pulling gently, the member 7 translates, by means of the slot 72 engaged by the fixed member 51 of the knob 5, exiting from the knob 5 and allowing access to the three holes 73 in which it is possible to insert up to three padlocks 9.
  • The member 7, in this locked position, has the tab 71 engaged in the seat 10, which is U-shaped, of the cover 3, locking the rotation of the knob 5 and therefore of the disconnector.
  • The same situation is repeated with the knob 5 in position I, where the tab 71 engages the seat 11 of the cover 3.
  • If the disconnector is used for an emergency actuation, locking of the knob is possible only in position O and locking of the knob in position I is not provided.
  • In practice it has been found that the invention achieves the intended aim and objects, providing a rotary disconnector having a translatable component with holes for up to three padlocks.
  • The translatable member is assembled in the knob itself and allows to lock the rotation of the knob, and therefore of the disconnector, in the two positions I (ON) or O (OFF).
  • An advantage of the present invention is constituted by the improved aesthetic appearance of the product, because the holes of the padlock member remain hidden from view when the locking system is not used.
  • A further advantage is constituted by the fact that the holes for the padlocks are all aligned on the same plane.
  • The materials used, as well as the dimensions, may of course be any according to the requirements and the state of the art.

Claims (6)

  1. A rotary disconnector (1) with lockable actuation knob (5), comprising a casing (2) provided with a cover (3) in which a seat for the actuation knob is formed; said knob actuating a bar (6) which actuates members of the disconnector; said knob rotating between at least two operating positions: an open position and a closed position; said open position corresponding to an open position of the contacts of the disconnector, in which there is no flow of current, said closed position corresponding to a closed position of the contacts of the disconnector, in which there is flow of current between the contacts; a padlock seat member (7) being associated to said knob and accommodating the shackle (8) of one or more padlocks (9); said padlock seat member translating with respect to said knob between two operating positions: a released position, in which said padlock seat member is retracted into said knob and allows the rotation thereof between the open and closed positions, and a locked position, in which the padlock seat member is partially extracted from said knob and locks said knob in one of the open or closed positions; by inserting a shackle of one or more padlocks in said padlock seat member said padlock seat member is prevented from retracting into said knob, which is locked in one of said open or closed positions; said disconnector being characterized in that said padlock seat member (7) has a slot (72) which is extended diagonally and radially, with respect to the rotary motion of the knob, and engages at least one fixed member (51), which is integral with said knob, so that said padlock seat member can move radially and axially with respect to the rotation axis of the actuation knob (5).
  2. The disconnector according to claim 1, characterized in that said padlock seat member (7) has a tab (71) that is configured to engage one of two seats (10, 11) formed in said cover which correspond respectively to said open and closed positions of said knob.
  3. The disconnector according to claim 1, characterized in that said padlock seat member (7) is provided with a number of holes (73) that can accommodate one or more shackles of respective padlocks.
  4. The disconnector according to claim 3, characterized in that said holes are aligned on a single plane.
  5. The disconnector according to claim 1, characterized in that in said released position said padlock seat member is completely retracted inside said knob.
  6. The disconnector according to claim 1, characterized in that in said released position, in which said padlock seat member is retracted in said knob, said holes are hidden from view.
EP19150016.4A 2018-01-04 2019-01-02 Rotary disconnector with padlockable actuation knob Active EP3509081B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT201800000547A IT201800000547A1 (en) 2018-01-04 2018-01-04 ROTARY DISCONNECTOR WITH PADLOCKABLE CONTROL KNOB

Publications (2)

Publication Number Publication Date
EP3509081A1 EP3509081A1 (en) 2019-07-10
EP3509081B1 true EP3509081B1 (en) 2020-07-22

Family

ID=61952793

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19150016.4A Active EP3509081B1 (en) 2018-01-04 2019-01-02 Rotary disconnector with padlockable actuation knob

Country Status (4)

Country Link
EP (1) EP3509081B1 (en)
CN (1) CN110010388B (en)
ES (1) ES2817586T3 (en)
IT (1) IT201800000547A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2620804A (en) * 2022-07-19 2024-01-24 Eaton Intelligent Power Ltd Actuation knob with integrated padlocking link
WO2024017497A1 (en) * 2022-07-19 2024-01-25 Eaton Intelligent Power Limited Actuation knob with integrated padlocking link

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FR2747230B1 (en) * 1996-04-05 1998-05-15 Schneider Electric Sa PADLOCKABLE EMERGENCY STOP BUTTON
JP3711663B2 (en) * 1996-10-31 2005-11-02 富士電機機器制御株式会社 External circuit handle device for circuit breaker
DE29711741U1 (en) * 1997-07-04 1998-11-05 Ramsauer Dieter In the swiveled-in state, the swivel lever can be secured for the closure of control cabinet doors or the like.
DE19939717A1 (en) * 1999-08-21 2001-02-22 Moeller Gmbh Manual operating device electrical switching device, has rotary handle connected to drive plate within ridge with edge segments forming circle when in off position
FR2886756B1 (en) * 2005-06-02 2007-07-20 Schneider Electric Ind Sas DEVICE FOR ACTUATING AN ELECTRICAL DEVICE SWITCH WITH LATCHING DEVICE
FR2894041B1 (en) * 2005-11-29 2007-12-28 Schneider Electric Ind Sas LOCKABLE ROTARY CONTROL HANDLE
EP2256768A1 (en) * 2009-05-25 2010-12-01 Ewac Holding B.V. Safety rotary operator assembly
SG169917A1 (en) * 2009-09-30 2011-04-29 Schneider Electric South East Asia Hq Pte Ltd A switching device
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US9895969B2 (en) * 2013-05-16 2018-02-20 GM Global Technology Operations LLC Push-push latch
CN104252981B (en) * 2013-06-28 2017-11-14 施耐德电气工业公司 Padlock interlock and rotary handle for rotary handle
US9496101B2 (en) * 2014-02-06 2016-11-15 Eaton Corporation Disconnect operating handles suitable for circuit breakers and related bucket assemblies and handle interlocks
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CN206819899U (en) * 2016-12-13 2017-12-29 伊顿电气有限公司 Hand behaviour device, breaker and regulator cubicle

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Also Published As

Publication number Publication date
ES2817586T3 (en) 2021-04-07
CN110010388B (en) 2024-02-20
EP3509081A1 (en) 2019-07-10
IT201800000547A1 (en) 2019-07-04
CN110010388A (en) 2019-07-12

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