EP0245127B1 - Dispositif cadenassable pour commander un interrupteur, et ensemble électrique ainsi équipé - Google Patents

Dispositif cadenassable pour commander un interrupteur, et ensemble électrique ainsi équipé Download PDF

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Publication number
EP0245127B1
EP0245127B1 EP19870400735 EP87400735A EP0245127B1 EP 0245127 B1 EP0245127 B1 EP 0245127B1 EP 19870400735 EP19870400735 EP 19870400735 EP 87400735 A EP87400735 A EP 87400735A EP 0245127 B1 EP0245127 B1 EP 0245127B1
Authority
EP
European Patent Office
Prior art keywords
button
locking element
plate
locking
rotary control
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
EP19870400735
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0245127A1 (fr
Inventor
Daniel Nourry
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
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
Priority claimed from FR8604965A external-priority patent/FR2596914B1/fr
Application filed by La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Publication of EP0245127A1 publication Critical patent/EP0245127A1/fr
Application granted granted Critical
Publication of EP0245127B1 publication Critical patent/EP0245127B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
    • 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
    • H01H2071/565—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel using a add on unit, e.g. a separate rotary actuator unit, mounted on lever actuated circuit breakers

Definitions

  • the present invention relates to a padlockable device for controlling a switch, this device comprising a plate surrounded by a frame element, and a button movable in this plate between at least two positions and having a through recess adapted to receive a padlock hoop so irremovable when the padlock is locked, the device further comprising a locking element articulated to the frame element between a release position, remote from the button, and a locking position in which, in one of the positions of the button, the locking element obstructs the rotation of the button towards its other position, the through recess being produced in the button so that the arch of a padlock engaged in the recess protrudes in the path of the element locking in a way preventing the latter from returning to its release position.
  • the locking member is pivotally mounted between two switches, so as to always be in the release position for one switches and in the locked position for each other. Between its two positions, the locking member pivots 180 °.
  • the object of the invention is to make the device simpler and more convenient.
  • the device is characterized in that the locking element is made in one piece with the frame element, the articulation between the locking element and the frame element being defined by at minus a thinning of the plastic which constitutes them, and in that the locking element in the release position and the frame element complement each other to form a frame around the button.
  • the locking element is integrated into the frame, which is a particularly happy solution, both from the point of view of space and from the aesthetic point of view. It is possible to design the device so that its lockable character is practically not apparent when the locking member is in the release position.
  • the locking member is made in one piece with the frame.
  • the lockable nature of the device therefore does not entail the need for additional parts.
  • the electrical assembly comprising a box, the interior of which, accessible by a door, is occupied in particular by a switch with rotary control movable between an on position and a stop position, is characterized in that the door is equipped with a device according to the first aspect of the invention, the button of which is mounted through and through and presents towards the inside of the cabinet means for coupling in rotation with the rotary control of the 'switch when the door is closed, these means allowing during the opening of the door, the uncoupling between the button of the device and the rotary control of the switch at least when the latter is in one of its positions.
  • the padlockable device for controlling a switch equips an electrical assembly (FIG. 1) comprising a wall box 1, the interior of which, accessible by a door 2, is occupied by a protective switch device 3.
  • the device 3 notably has the function of d '' automatically open an electrical circuit which it controls, when an incident occurs on this circuit.
  • the device 3 carries on its front face a rotary control 4 (see also FIG. 2) which can be moved between three positions, namely a "on” position in which a radial projection or lug 6 of the control 4 is directed upwards facing a mark "I" carried by the front wall of the device, a "stop" position (represented in FIG.
  • control 4 When the control 4 is in the "off” position, power contacts (not shown) contained in the device 3 are open. By bringing the command 4 to the “on” position, the contacts are closed. If an electrical incident is detected by the device 3, it controls the opening of the power contacts. Command 4 remains in the “on” position. To close the contacts, turn control 4 to the “reset” position, then return it to the "on” position.
  • the front wall of the device 3 has in its upper region transparent windows 7 through which it is possible to see the power contacts and to recognize whether they are open or closed.
  • the front wall of the device 3 has a transparent window 8 through which a fault indicator appears when the device 3 controls the opening of the power contacts after detecting an electrical incident.
  • the padlockable device 9 equips the door 2 of the cabinet 1. It essentially comprises a plate 11 made of transparent plastic material, on the periphery of which is fixed a frame 12 made of plastic material, for example of the regulatory color yellow, which traps four nuts not shown in four hexagonal housings 13 of the plate 11. As shown in Figures 2 and 3 considered together, for fixing the frame 12 on the plate 11, the frame 12 has four pins 14 engaged in four holes 16 of the plate 11 then deformed hot or by another means so as to widen in the form of a rivet their end 17 in the flared outlet which the orifices 16 have on the side opposite to the frame 12.
  • the plate 11 On the side opposite to the frame 12, the plate 11 has a generally cylindrical rib 18 which is fitted into a circular orifice 19 which the door has opposite the front wall of the device 3 when the door is closed.
  • the assembly formed by the plate 11 and the frame 12 is fixed to the door 2 by screws cooperating with the captive nuts in the housings 13 or by an ultrasonic weld produced between the rib 18 and the edge defining the orifice 19. In the latter case, it is not even necessary to provide nuts in the housings 13 before fixing the frame 12 to the plate 11.
  • the plate 11 also has a circular central hole 21 in which is engaged with a certain radial clearance a coupling sleeve 22, of generally cylindrical shape forming part of a rotary button 23.
  • the button 23 comprises a cylindrical base 24, of diameter greater than the outside diameter of the socket 22 and connected to the latter by a shoulder 26 pressing against the outside side of the plate 11 around the orifice 21.
  • An appendix of gripping 27 is connected to the base 24 on the side opposite to the socket 22.
  • the appendage 27, of generally flattened shape extends along an axial plane of the button 23.
  • a retaining ring 28 (FIG. 3) designed to s 'arcbouter by adhesion to the outer surface of the socket 22, retains the latter in the hole 21 of the plate 11 by bearing on the inner side of the latter. This through mounting of the button 23 in the plate 11 leaves the latter with a certain radial clearance in the hole 21.
  • the socket 22 has a recess 29 (FIGS. 10 and 11) which opens towards the inside of the box 1 and whose flattened interior shape is complementary, apart from the interlocking games, to that of a coupling projection 31 ( Figures 2 and 12) carried by the rotary control 4 of the device 3 towards the outside of the box 1.
  • a coupling projection 31 Figures 2 and 12
  • the device 9 comprises means making it possible to lock the button 23 with a padlock in its "stop” position in which the control 4 is also in its “stop” position when the door 2 is closed.
  • These means comprise a locking flap 32 (FIG. 2) produced integrally with the frame 12 and articulated thereto along a geometric axis 33 passing substantially through the horizontal upper edge of the substantially square opening of the frame 12.
  • This pivot axis 33 is materialized by two thinnings 34 of the frame 12, each extending from the edge of the frame 12 to about half its width.
  • the frame 12 has a width reduced by about half compared to that which it has below the axis 33.
  • the flap 32 which has substantially a general shape of U articulated by its two ends of the frame 12 can take a release position ( Figures 2 to 4 and 7) in which it is distant from the button 23. It then extends outwardly to the frame 12 and completes it so that the frame 12-flap assembly 32 has a substantially regular width all around the button 23.
  • the flap 32 has opposite the axis 33, two bosses 36 which, in the release position, project upwards and towards the wall of the door 2, in the vicinity of which they have a spout 37 snapped behind a rim 38 of the plate 11.
  • the button 23 can be operated without hindrance between the "on” and "off” positions.
  • the locking flap 32 has, on the side opposite the axis 33, and between the two bosses 36, a part 59 projecting in the direction opposite to the axis 33, produced by '' in one piece with the rest - or load-bearing part 80 -, of the flap 32 and the frame 12.
  • This projecting part 59 substantially in the general shape of a U, comprises a bridge 60 substantially parallel to the axis 33, and two branches 61 and 62 connecting the bridge 60 to the load-bearing part 80.
  • the projecting part 59 in the general shape of a U thus defines between it and the load-bearing part 80, an opening 63 elongated substantially in the direction of the axis 33.
  • an edge 41 of the flap of the carrier part 80, opposite the axis 33, is substantially juxtaposed with a lateral face 42 of the button 23, which is then directed towards the axis 33.
  • the face 42 generally planar, is parallel to the edge 41 and to the axis 33. The juxtaposition thus produced between the edge 41 and the face 42, prevents rotation of the button to its "on" position.
  • the opening 63 is sufficiently high and wide to be able, when the flap 32 is pivoted from its release position to the locking position, to cover the appendage 27 of the button 23 so that the edge 41 comes substantially to juxtaposed with the lateral face 42 of the button 23 as has just been said, while the other long edge 64 of the opening 63 comes substantially juxtaposed with the opposite lateral face 44 of the button 23.
  • the lateral faces 42 and 44 of generally planar shape, are parallel to one another, as are the edges 41 and 64.
  • the appendage 27 of the button 23 has a through recess 43 opening into the faces 42 and 44.
  • the recess 43 is elongated in the direction which is parallel to the edge 41 of the carrier portion 80 when the button is in the "off" position.
  • the recess 43 is profiled so as to define three cells aligned in the direction of elongation of the recess 43 and communicating laterally with each other. As can be understood in Figure 5, each of these cells is adapted to receive the arch 46 of a respective padlock 47.
  • the recess 43 may have an enlargement 49 in the direction of the plate 11.
  • the edge 41 of the opening 63 has a central boss 51 which engages in the widening 49 of the recess 43 when the flap 32 is in the locked position.
  • the boss 51 is corrugated according to a profile extending the honeycomb profile that the recess 43 has outside its enlargement 49. As shown in FIG.
  • the projection formed by the central boss 51 relative to the rest of the edge 41 is calculated so that the trajectory 48 of the end of the boss 51 substantially tangents the edge formed by the recess 43 in the face 42 opposite the plate 11 Thanks to this arrangement, the flap 32 is more effectively retained in the locking position by the arch 46 despite the clearance that the latter necessarily has in the recess 43.
  • the opaque frame 12 completely surrounds the button 23 leaving visible around it a region of the transparent plate 11 through which the windows 7 and 8 of the device 3 are visible. Thanks to the U-shape of the carrying part 80, and to the position of its articulation axis 33, the central region of the U, contiguous to the button 23 when the flap 32 is in the locking position (FIG. 5), leaves exposed the platinum region 11 through which the windows 7 are visible. The visibility of the window 8 is affected neither by the presence of the flap 32 nor by that of the padlocks 47.
  • the projecting part 59 is preferably articulated to the supporting part 80 along a geometric pivot axis 67 passing substantially through the horizontal upper edge of the bosses 36.
  • This pivot axis 67 is materialized on the branches 61 and 62 of the projecting part 59 of the flap 32 by thinning 68 of the material of the flap 32; these thinnings 68 extend over the entire width of the branches 61 and 62 on the side of the flap 32 which is opposite the plate 11 in the release position, as shown in particular in FIGS. 2, 8 and 9.
  • the projecting part can be moved by pivoting approximately 180 ° around the pivot axis 67, as shown by the arrow 69 in FIG. 2, from a deployed position in extension of the carrying part 80, shown in FIGS. 2 and 4, in which the flap 32 is in the release position, and in FIGS. 5 and 6 in which the flap 32 is in the locking position, up to a folded position against the carrying part 80 , on the side of the plate 11 when the flap 32 is in the release position, as shown in FIGS. 7 and 8.
  • the part 59 is placed in the deployed position when the flap 32 is in the locking position (FIGS.
  • the folded part 59 occupies a housing defined by two facing recesses 70 and 71 presented one by the upper region of the plate 11 and the other by the carrying part 80.
  • the carrying part 80 is thickened from shoulders 74 (FIG. 4) each adjacent to one of the articulations 34, on the side which, in the release position, is opposite to the plate 11.
  • the plate 11 has on its side facing the inside of the box, just below the lug 6 when the control 4 is in the "off" position, a stop finger 53 which points towards the inside of the box when door 2 is closed.
  • the lug 6 acting as a stop against the stop finger 53, prevents the operation.
  • the purpose of this provision is to force the cabinet to be opened to reset, and thus invite a qualified technician to investigate the cause of the incident.
  • the plate 11 has on the side facing the inside of the box, on a circular sector around the hole 22, a rib 54 forming a flange 56 in the direction of the axis of the hole 22.
  • This rib 54 and its rim 56 extend from an angular position located just above the lug 6 when the control 4 is in the "off” position, in the direction opposite to the stop finger 53 and to the position occupied by the lug 6 when the control 4 is in the "on" position.
  • the rotary control 4 has, in the appropriate circumferential direction, two aggressive projections 57 (see FIGS. 2, 12 and 13 ) which, given the resistance to rotation of the button 4, make painful the direct action of the fingers of a user on the control 4 in the direction from the "off" position to the "on” position.
  • the control 4 has surfaces 58 allowing comfortable direct gripping to maneuver it in the "stop” direction towards “reset”. This allows the user to comfortably carry out the maneuver towards the rearming position, the return from the latter to the "stop” position being automatic.
  • the device cleverly exploits the need, imposed by standards, to provide a yellow frame to make this frame in the form of a separate part from the plate and in which is simultaneously produced the locking flap. It was made so that the yellow frame remains complete, even in the locked position. The frame hides the fixing means 13, even when the flap 32 is in the locked position.
  • the locking element such as 32 could be formed in a single block with the plate and articulated thereto for example by thinning of the plastic material, the yellow frame, if necessary. , being produced by any means such as local coloring of the plastic material of the plate.
  • the padlockable device could be provided directly on the front wall of an apparatus such as 3 instead of being mounted in a door as has been described.
  • the flap 32 is not necessarily made in two articulated parts.
  • a first possibility is that the part such as 59 occupies the projecting position shown in FIGS. 2 and 4, when the flap such as 32 is in the release position.
  • Second possibility part 59 is purely and simply deleted. Indeed, as shown by the dashed line 48 in FIG. 6, effective locking is already ensured by the carrier part 80 which, in the locking position, prevents the rotation of the button 23 and is prevented by the padlock (s) 46, 47 to return to the release position.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Lock And Its Accessories (AREA)
EP19870400735 1986-04-08 1987-04-03 Dispositif cadenassable pour commander un interrupteur, et ensemble électrique ainsi équipé Expired - Lifetime EP0245127B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8604965A FR2596914B1 (fr) 1986-04-08 1986-04-08 Dispositif cadenassable pour commander un interrupteur, et ensemble electrique ainsi equipe
FR8604965 1986-04-08
FR8618411A FR2609208A2 (fr) 1986-04-08 1986-12-31 Dispositif cadenassable pour commander un interrupteur
FR8618411 1986-12-31

Publications (2)

Publication Number Publication Date
EP0245127A1 EP0245127A1 (fr) 1987-11-11
EP0245127B1 true EP0245127B1 (fr) 1991-01-23

Family

ID=26225139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870400735 Expired - Lifetime EP0245127B1 (fr) 1986-04-08 1987-04-03 Dispositif cadenassable pour commander un interrupteur, et ensemble électrique ainsi équipé

Country Status (4)

Country Link
EP (1) EP0245127B1 (da)
DE (1) DE3767553D1 (da)
ES (1) ES2020286B3 (da)
FR (1) FR2609208A2 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079390A (en) * 1991-04-03 1992-01-07 Occidental Chemical Corporation Lock-out device for circuit breakers
FR2692717B1 (fr) * 1992-06-18 1997-01-31 Telemecanique Dispositif de verrouillage a volet pour disjoncteur.
GB2294810B (en) * 1994-11-02 1999-02-24 Gen Electric Padlocking arrangement for high ampere rated circuit breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE676985C (de) * 1936-05-14 1939-06-16 Jung Albrecht Fa Schaltvorrichtung fuer elektrische Lampen, die neben einer oder mehreren Lichtquellen fuer helle Hauptbeleuchtung eine oder mehrere Lichtquellen fuer sog. Luftschutzbeleuchtung haben
DE7314878U (de) * 1973-04-18 1974-10-24 Siemens Ag Vorrichtung zum Sperren der Betätigungsorgane eines elektrischen Schalters
DE3014829C2 (de) * 1980-04-15 1983-01-20 Siemens AG, 1000 Berlin und 8000 München Drehgriff zur Handbetätigung eines Gerätes
DE3024400A1 (de) * 1980-06-28 1982-01-21 Elektra Tailfingen Schaltgeräte GmbH & Co KG, 7470 Albstadt Elektrische schaltvorrichtung
GR82158B (da) * 1983-06-17 1984-12-13 Knudsen Nordisk Elect

Also Published As

Publication number Publication date
DE3767553D1 (de) 1991-02-28
FR2609208B2 (da) 1995-02-03
FR2609208A2 (fr) 1988-07-01
EP0245127A1 (fr) 1987-11-11
ES2020286B3 (es) 1991-08-01

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