EP0154369B1 - Motor control, in particular of the energy storage type, for low-voltage safety switches - Google Patents
Motor control, in particular of the energy storage type, for low-voltage safety switches Download PDFInfo
- Publication number
- EP0154369B1 EP0154369B1 EP19850200198 EP85200198A EP0154369B1 EP 0154369 B1 EP0154369 B1 EP 0154369B1 EP 19850200198 EP19850200198 EP 19850200198 EP 85200198 A EP85200198 A EP 85200198A EP 0154369 B1 EP0154369 B1 EP 0154369B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- handle
- switch
- levers
- motor 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
Links
Images
Classifications
-
- 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
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
-
- 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
- H01H71/66—Power reset mechanisms
- H01H2071/665—Power reset mechanisms the reset mechanism operating directly on the normal manual operator, e.g. electromagnet pushes manual release lever back into "ON" position
-
- 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
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
Definitions
- the present invention relates to low-voltage safety electric switches and specifically relates to a motor control, in particular of the energy storage type, for such switches.
- low-voltage safety switches comprise a mechanism suitable to be hand-actuated by means of a handle, to cause, through a system of knee-joint levers, the shifting of movable contacts from their opening position, to their closing position, and vice-versa.
- the two end positions of this handle show visually the condition of "open” or of "closed” of the switch.
- the switches of this type are also provided with particular devices, called “releasers”, capable of automatically shifting the movable contacts to their opening position, in case of a short-circuit, or of a higher current than the rated value.
- a motor control in particular a control of the energy storage type, comprising a slider suitable to be linearly moved between two extreme positions and constrained to the handle of the switch, to move it getting over the dead centre of the system of knee-joint levers, to and from an extreme position.
- a control known e.g. from U.S.
- Patent US-A-33 28 731 is provided with energy storage means, in particular springs which are loaded by the shift of the slider towards an extreme position, as well as with locking means suitable to keep the slider in this position against the action of loaded springs, it being possible to unlock these latter means, e.g. electromagnetically, so as to allow the slider to freely shift the handle of the switch from said extreme position under the thrust of said springs, with consequent discharge of the energy stored therein.
- energy storage means in particular springs which are loaded by the shift of the slider towards an extreme position
- locking means suitable to keep the slider in this position against the action of loaded springs, it being possible to unlock these latter means, e.g. electromagnetically, so as to allow the slider to freely shift the handle of the switch from said extreme position under the thrust of said springs, with consequent discharge of the energy stored therein.
- Purpose of the present invention is to obviate this drawback and to create a motor control, in particular of the energy storage type, for low-voltage safety switches, which allows the hand control handle of the switch to assume, in addition to the two extreme positions indicating the conditions of switch closed and switch open, due to the manual drive, also the intermediate position to the purpose of directly indicating the condition of contacts open following the intervention of releaser devices.
- the linearly movable slider of the motor control is suitable to act with a front edge thereof on the hand control handle of the switch in its stroke from its extreme position of switch closed to its position of switch open, while for the action on the handle during the reverse stroke, the slider is provided with temporary contraint means, such means being active when the handle and the slider are in their extreme position of switch open, as well as during the stroke of the slider from this position towards the position of switch closed at least till to the getting over of dead centre by the system of knee-joint levers connecting the handle with the movable contacts of the switch, while said means are inactive in the sense of disengaging the handle from the slider when the handle and the slider are in their extreme position of switch closed.
- the manual control handle of the switch can freely move from its extreme position of switch closed to an intermediate position owing to an intervention of releaser devices, in order to visually indicate this condition of the switch.
- Said temporary contraint means may be advantageously constituted by two symmetrical double-arm levers hinged on the slider, and provided at the end of one of their arms with hooks suitable to seize the handle of the switch on the opposite side respectively to that on which the slider edge acts, said levers being linked to each other in correspondence of the end of the other one of their arms, by elastic means tending to mutually space apart the hook ends of the same levers, contrasting cam-shaped fixed means suitable to keep said hook ends close to each other, and hence suitable to keep the switch handle seized when the slider is in its position of switch open, and during a first portion of its stroke from this position to its position of switch closed, and to make free the hook ends of the levers to separate under the action of said elastic means during the further movement stroke of the slider towards its extreme position of switch closed.
- the handle of the switch trips automatically to its position indicating the condition of switch closed, and the two levers borne by the slider, not being any longer under friction engagement with the handle, move to the position, allowed by the cam-shaped fixed means, wherein their hook-shaped ends are spaced apart.
- FIG. 1 and 2 the profile is schematically shown of a low-voltage safety switch, generally indicated with 1, of a type perse known, comprising a case 2 of isolating material, and a manual control handle 3 linked through a system of knee-joint levers (not shown) to the movable contacts of the switch.
- a low-voltage safety switch generally indicated with 1
- a manual control handle 3 linked through a system of knee-joint levers (not shown) to the movable contacts of the switch.
- the switch 1 is also provided with releaser devices intervening in case of short-circuit and/or in case of overcurrents, to the purpose of opening the contacts of the switch.
- releaser devices intervening in case of short-circuit and/or in case of overcurrents, to the purpose of opening the contacts of the switch.
- the handle 3 of the switch 1 is shifted to an intermediate position between the two extreme positions indicating the conditions of switch open and switch closed, the whole being as it is well known in the art, and as it is disclosed e.g. in the German Patent Application publication DE-A-31 19 483, a description and illustration in greater detail being therefore needless.
- a supporting frame 4 is fastened for an energy storage motor control mechanism contained within a casing 5. Also this control mechanism is perse known in the art, and it shall be described hereinunder only briefly.
- the supporting frame 4 is provided with a large centre opening wherein the handle 3 of the switch can freely move.
- the casing 5 is open downward, i.e., on its side facing the case 2 of the switch when it is mounted on the frame 4, and moreover said casing 5 is provided, in an upper point relatively to the area within which the handle 3 moves, with a window protected by a transparent cover, through which it is possible to observe the position taken each time by the handle 3.
- a slider 6 having the shape of a plate can linearly slide.
- an edge 7 thereof shown on the left in the drawings
- the slider 6 can act aginst a side of the handle 3.
- the slider 6 bears a hook-shaped projection 8, integral with it, which forms, in cooperation with the edge 9, a slot 10 open on one side, and closed on the opposite side, where the hook-shaped projection 8 is connected with the body of the slider 6.
- a disk 12 is rotatably mounted around the axis of a vertical pin 11, said disk 12 being provided in its lower face with a stud 13 suitable to enter, during the rotation of the disk 12 in the direction of arrow 14 ( Figures 2 to 5), inside said slot 10 of the slider 6, to cause the linear shifting, in either direction, of the same slider between an extreme position (that shown on the left-hand side in Figure 2) and the other extreme position (that shown on the right-hand side in Figures 3 and 4).
- the left-hand position ( Figure 2) of the slider 6 is the one corresponding to the position of switch open, and the right-hand position ( Figure 5) is that corresponding to the position of switch closed.
- the disk 12, driving by means of its stud 13 the movements of the slider 6, is caused to rotate, by half a turn (from its position shown in Figure 3 to its position shown in Figure 2, that is to say, from its position of switch closed to the position of switch open) by a control motor 15, provided, in a way perse known, with stop contacts.
- a control motor 15 provided, in a way perse known, with stop contacts.
- some springs 16 are tensioned (loaded) with a consequent energy storage.
- Locking means constituted e.g. by a small lever 17 cooperating with a peripheral step 18 of the disk 12 and with a stopping pin 19 stop the disk 11 and thereby the slider 6 in their position shown in Figure 2, and under this condition keep the springs 16 under tension.
- the slider 6 On its lower face (the one facing the switch case 2), the slider 6 supports a couple of double-arm levers 21 and 22, rotatably mounted around pivots 23 and 24 integral with the same slider.
- These two levers 21 and 22 are symmetrically shaped and positioned, relative to the centre axis of the slider 6 parallel to the shifting direction thereof.
- the ends of the longer arms of the two levers 21 and 22 are bent to a hook-shape 25 and 26, and are suitable to seize the handle 3 of the switch from the opposite side relatively to the side on which the edge 7 of the slider is active, said arms protruding beyond this edge 7.
- the ends of the shorter arms of the two levers 21 and 22 are linked to each other by means of a spring 27, which tends to cause the levers 21 and 22 to rotate around the pivots 23 and 24, in the sense of parting their hook ends 25 and respectively 26 wide.
- cam-guides 28 and 29 are each provided with a first section 28a and respectively 29a (on the left in the figures) closer to the centre axis of shifting, and, parallel to it, of the slider 6, as well as with a second section 28b and respectively 29b (on the right in the figures) farther from said axis, the two sections said being connected to each other by raking sections 28c and respectively 29c.
- Figure 3 shows this extreme position of the handle 3 and of the slider 6 with the levers 21 and 22 wide apart.
- Figure 3 shows this extreme position of the handle 3 and of the slider 6 with the levers 21 and 22 wide apart.
- Figure 3 shows an intermediate position is shown of the handle 3 and of the levers 21 and 22, with their hook ends being still in engagement condition with the same handle, said intermediate position being roughly corresponding to that wherein the system of knee-joint levers linked to the handle is close to get over the dead centre.
- Figure 5 shows lastly an intermediate position of the slider 6 and of the handle 3 during the shifting from their position of switch closed towards the position of switch open.
- it is the front edge 7 of the slider 6 of the motor control, which pushes the handle 3 towards its position of switch open ( Figure 2), while during the movement of the slider 6 the hook ends 25 and 26 of the levers 21 and 22, by sliding in contact with the fixed cam-guides 29 and 28 are gradually brought again into their not spaced apart position (against the action of the spring 27), to be finally ready again to seize the handle 3 when the same reaches its position of switch open.
- the present invention allows, with the aid of extremely simple means, a motor control to be realized, in particular of the energy storage type, for a safety switch provided with releaser devices, wherein the control handle of the switch is able to visually and directly indicate not only the positions of switch closed and switch open, but also the condition of switch open owing to an intervention of the releaser devices.
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Description
- The present invention relates to low-voltage safety electric switches and specifically relates to a motor control, in particular of the energy storage type, for such switches.
- It is well known that low-voltage safety switches comprise a mechanism suitable to be hand-actuated by means of a handle, to cause, through a system of knee-joint levers, the shifting of movable contacts from their opening position, to their closing position, and vice-versa. The two end positions of this handle show visually the condition of "open" or of "closed" of the switch. The switches of this type are also provided with particular devices, called "releasers", capable of automatically shifting the movable contacts to their opening position, in case of a short-circuit, or of a higher current than the rated value. These releasing devices operate in an electromagnetic and/or thermal way, and, in case of the intervention thereof, the handle of the hand control mechanism is moved to an intermediate position between its two extreme positions, thus showing visually the condition of switch open following the intervention of the releasing devices. For the realization of a switch of such a briefly illustrated type, reference is made, to purely exemplifying purposes, to the German Patent Application publication DE-A-31 19 483.
- The purpose of facilitating the actuation of such a switch, and of allowing, among others, also a remote control thereof, it has already been proposed to couple to the same switch a motor control, in particular a control of the energy storage type, comprising a slider suitable to be linearly moved between two extreme positions and constrained to the handle of the switch, to move it getting over the dead centre of the system of knee-joint levers, to and from an extreme position. Such a control, known e.g. from U.S. Patent US-A-33 28 731, is provided with energy storage means, in particular springs which are loaded by the shift of the slider towards an extreme position, as well as with locking means suitable to keep the slider in this position against the action of loaded springs, it being possible to unlock these latter means, e.g. electromagnetically, so as to allow the slider to freely shift the handle of the switch from said extreme position under the thrust of said springs, with consequent discharge of the energy stored therein.
- This known solution of motor control for safety switches, as well as other known solutions of the same type, foresee a constant contraint of the handle of the switch to the slider of control mechanism, generally by means of a window provided in the slider wherein the free end of the handle is engaged. As a consequence, the handle of the switch can only assume either one or the other of the two extreme positions corresponding to the positions of switch closed or open following the shift of the slider of motor control. However, as it has been hereinabove specified, such switches are also provided with releaser devices automatically intervening in case of a short-circuit or of an overcurrent, to move the movable contacts of the switch to the open position. This is also possible in the case wherein to the switch a motor control is coupled, in that the movable contacts of the switch, with the intervention of the releaser devices, can be moved to the position of open, with the hand control handle still remaining in its position indicating the condition of switch closed, in which position the handle is kept by the slider of the motor control. In this case, a visual direct indication is therefore missing, by the handle of the switch, of the condition of the switch in which its contacts are open owing to an intervention of releaser devices, such indication being often required, and being provided in the switches not coupled to a motor control through the intermediate position of the hand control handle.
- Purpose of the present invention is to obviate this drawback and to create a motor control, in particular of the energy storage type, for low-voltage safety switches, which allows the hand control handle of the switch to assume, in addition to the two extreme positions indicating the conditions of switch closed and switch open, due to the manual drive, also the intermediate position to the purpose of directly indicating the condition of contacts open following the intervention of releaser devices.
- In order to achieve this purpose, according to the present invention the linearly movable slider of the motor control is suitable to act with a front edge thereof on the hand control handle of the switch in its stroke from its extreme position of switch closed to its position of switch open, while for the action on the handle during the reverse stroke, the slider is provided with temporary contraint means, such means being active when the handle and the slider are in their extreme position of switch open, as well as during the stroke of the slider from this position towards the position of switch closed at least till to the getting over of dead centre by the system of knee-joint levers connecting the handle with the movable contacts of the switch, while said means are inactive in the sense of disengaging the handle from the slider when the handle and the slider are in their extreme position of switch closed.
- In this way, the manual control handle of the switch can freely move from its extreme position of switch closed to an intermediate position owing to an intervention of releaser devices, in order to visually indicate this condition of the switch.
- Said temporary contraint means may be advantageously constituted by two symmetrical double-arm levers hinged on the slider, and provided at the end of one of their arms with hooks suitable to seize the handle of the switch on the opposite side respectively to that on which the slider edge acts, said levers being linked to each other in correspondence of the end of the other one of their arms, by elastic means tending to mutually space apart the hook ends of the same levers, contrasting cam-shaped fixed means suitable to keep said hook ends close to each other, and hence suitable to keep the switch handle seized when the slider is in its position of switch open, and during a first portion of its stroke from this position to its position of switch closed, and to make free the hook ends of the levers to separate under the action of said elastic means during the further movement stroke of the slider towards its extreme position of switch closed.
- When the slider moves from its position of switch open towards its position of switch closed, the hook-shaped ends of the two levers hinged onto the same slider drag therefore the handle of the switch towards its position of switch closed. This drag action continues, thanks to the movement of the slider and to the friction between the hook ends of the levers and the end of the handle, also after that the cam fixed means allow the separation of the hook ends of the levers and hence the release of the handle, until the system of knee-joint levers linking the handle to the movable contacts of the switch gets over its dead centre. At this time indeed, the handle of the switch trips automatically to its position indicating the condition of switch closed, and the two levers borne by the slider, not being any longer under friction engagement with the handle, move to the position, allowed by the cam-shaped fixed means, wherein their hook-shaped ends are spaced apart.
- The invention shall be described hereinafter in more detail with reference to the attached drawings, schematically illustrating an embodiment thereof, and namely
- Figure 1 shows schematically the switch--energy storage assembly, partly in vertical section,
- Figure 2 is an horizontal section along the line II-II of Figure 1, and
- Figures 3-5 show, similarly to Figure 2, other positions of the handles of the switch and of the energy storage control slider.
- In Figures 1 and 2, the profile is schematically shown of a low-voltage safety switch, generally indicated with 1, of a type perse known, comprising a
case 2 of isolating material, and amanual control handle 3 linked through a system of knee-joint levers (not shown) to the movable contacts of the switch. By moving this handle from an extreme position to a second extreme position and vice-versa, each time getting over the dead centre of the knee joint lever system, the movable contacts of the switch can be brought to their closed position and respectively to their open position. - The
switch 1 is also provided with releaser devices intervening in case of short-circuit and/or in case of overcurrents, to the purpose of opening the contacts of the switch. In case of intervention of these releaser devices, thehandle 3 of theswitch 1 is shifted to an intermediate position between the two extreme positions indicating the conditions of switch open and switch closed, the whole being as it is well known in the art, and as it is disclosed e.g. in the German Patent Application publication DE-A-31 19 483, a description and illustration in greater detail being therefore needless. - On the
case 2 of switch 1 a supportingframe 4 is fastened for an energy storage motor control mechanism contained within acasing 5. Also this control mechanism is perse known in the art, and it shall be described hereinunder only briefly. It is to be noted that the supportingframe 4 is provided with a large centre opening wherein thehandle 3 of the switch can freely move. Also thecasing 5 is open downward, i.e., on its side facing thecase 2 of the switch when it is mounted on theframe 4, and moreover saidcasing 5 is provided, in an upper point relatively to the area within which thehandle 3 moves, with a window protected by a transparent cover, through which it is possible to observe the position taken each time by thehandle 3. - Within suitable side guides (not shown) provided in correspondence of the lower opening of the casing 5 a
slider 6 having the shape of a plate can linearly slide. By means of anedge 7 thereof (shown on the left in the drawings), perpendicular to the sliding direction, theslider 6 can act aginst a side of thehandle 3. In correspondence of theopposite edge 9 parallel to saidedge 7, theslider 6 bears a hook-shaped projection 8, integral with it, which forms, in cooperation with theedge 9, aslot 10 open on one side, and closed on the opposite side, where the hook-shaped projection 8 is connected with the body of theslider 6. - In the
casing 5, adisk 12 is rotatably mounted around the axis of avertical pin 11, saiddisk 12 being provided in its lower face with astud 13 suitable to enter, during the rotation of thedisk 12 in the direction of arrow 14 (Figures 2 to 5), inside saidslot 10 of theslider 6, to cause the linear shifting, in either direction, of the same slider between an extreme position (that shown on the left-hand side in Figure 2) and the other extreme position (that shown on the right-hand side in Figures 3 and 4). - The left-hand position (Figure 2) of the
slider 6 is the one corresponding to the position of switch open, and the right-hand position (Figure 5) is that corresponding to the position of switch closed. - The
disk 12, driving by means of itsstud 13 the movements of theslider 6, is caused to rotate, by half a turn (from its position shown in Figure 3 to its position shown in Figure 2, that is to say, from its position of switch closed to the position of switch open) by acontrol motor 15, provided, in a way perse known, with stop contacts. During this half-turn rotation, somesprings 16 are tensioned (loaded) with a consequent energy storage. Locking means constituted e.g. by asmall lever 17 cooperating with aperipheral step 18 of thedisk 12 and with a stoppingpin 19 stop thedisk 11 and thereby theslider 6 in their position shown in Figure 2, and under this condition keep thesprings 16 under tension. By unlocking these locking means, and viz. by causing a small rotation of thestopping pin 19, the corresponding rotation is obtained of thelever 17, which liberates therefore thedisk 12, and thesprings 16, releasing the stored energy, cause thedisk 12 to rotate further by about half a turn (always in the direction of arrow 14), saiddisk 12, through itsstud 13, engaging theslot 10, moving theslider 6 from its position of Figure 2 to that of Figure 3. - During the shifting of the
slider 6 from its position of Figure 3 to that of Figure 2, caused by the motor 15 (which can also be obtained, if desired, by means of anemergency handle 20 of the control mechanism), the same slider acts through itsedge 7 directly on thehandle 3 of theswitch 1, bringing it to its position of open. - In order to make it possible for the
slider 6 to shift thehandle 3 of the switch also in the opposite direction, i.e., from its position of open (Figure 2) to its position of closed (Figure 3), saidslider 6 is provided according to the present invention with particular means of temporary constraint. These means shall be now disclosed in detail. - On its lower face (the one facing the switch case 2), the
slider 6 supports a couple of double-arm levers pivots levers slider 6 parallel to the shifting direction thereof. The ends of the longer arms of the twolevers shape handle 3 of the switch from the opposite side relatively to the side on which theedge 7 of the slider is active, said arms protruding beyond thisedge 7. The ends of the shorter arms of the twolevers spring 27, which tends to cause thelevers pivots hook ends 25 and respectively 26 wide. - To this widening apart two fixed cam-
shaped guides frame 4, against which the hook ends 25 and 26 of thelevers spring 27. The cam-guides first section 28a and respectively 29a (on the left in the figures) closer to the centre axis of shifting, and, parallel to it, of theslider 6, as well as with asecond section 28b and respectively 29b (on the right in the figures) farther from said axis, the two sections said being connected to each other by rakingsections 28c and respectively 29c. When the hook ends 25 and 26 of thelevers sections 29a and respectively 28a of the cam-guides, they can seize thehandle 3 of the switch (see Figure 2), whilst when they rest against thesections 29b and respectively 28b, thehandle 3 results to be disengaged from said seizure (see Figures 3 and 4). - In the position of the
slider 6 and of thehandle 3 corresponding to the position of switch open (Figure 2), the hook-shaped ends levers slider 6 under the thrust of the loadedsprings 16, thehandle 3 towards its position of switch closed (Figure 3). When such a shifting of theslider 6 takes place after that the locking means have been disengaged, the hook-shaped ends levers handle 3 opposite to that on which theedge 7 of the slider is active, and this friction contact is maintained, during the shifting of theslider 6, even if in the meantime the hook ends 25 and 26 of thelevers sections handle 3 reaches its position wherein the system of knee-joint levers gets over its dead centre: this very instant, indeed, thehandle 3 trips automatically to its position of switch closed, thus rendering thehook ends levers slider 6 with the thus wide apart levers is brought into its extreme position by thestud 13 of thedisk 12. Figure 3 shows this extreme position of thehandle 3 and of theslider 6 with thelevers handle 3 and of thelevers - As shown in particular in Figure 4, when the
slider 6 with thelevers handle 3 is not constrained to the same slider, and is therefore free to move from its position indicating the condition of switch closed (indicated with dotted lines), to an intermediate position (indicated with solid lines) owing to an intervention of the releaser devices of the switch, which bring the movable contacts thereof to their position of open, when a short-circuit and/or an overcurrent take place. It clearly appears therefore, that thanks to the disengagement of thehandle 3 from theslider 6, also the condition of switch open due to the intervention of the releaser devices is directly indicated by the intermediate position of thehandle 3. - Figure 5 shows lastly an intermediate position of the
slider 6 and of thehandle 3 during the shifting from their position of switch closed towards the position of switch open. In this phase, it is thefront edge 7 of theslider 6 of the motor control, which pushes thehandle 3 towards its position of switch open (Figure 2), while during the movement of theslider 6 the hook ends 25 and 26 of thelevers guides handle 3 when the same reaches its position of switch open. - As it appears from what has been disclosed, the present invention allows, with the aid of extremely simple means, a motor control to be realized, in particular of the energy storage type, for a safety switch provided with releaser devices, wherein the control handle of the switch is able to visually and directly indicate not only the positions of switch closed and switch open, but also the condition of switch open owing to an intervention of the releaser devices.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2117984U IT8421179V0 (en) | 1984-03-09 | 1984-03-09 | MOTOR-OPERATED CONTROL, IN PARTICULAR WITH ENERGY STORAGE, FOR LOW VOLTAGE PROTECTION SWITCHES. |
IT2117984U | 1984-03-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0154369A2 EP0154369A2 (en) | 1985-09-11 |
EP0154369A3 EP0154369A3 (en) | 1986-07-23 |
EP0154369B1 true EP0154369B1 (en) | 1988-10-19 |
Family
ID=11177968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19850200198 Expired EP0154369B1 (en) | 1984-03-09 | 1985-02-18 | Motor control, in particular of the energy storage type, for low-voltage safety switches |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0154369B1 (en) |
DE (1) | DE3565740D1 (en) |
IT (1) | IT8421179V0 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4110043A1 (en) * | 1991-03-27 | 1992-10-01 | Kloeckner Moeller Gmbh | MOTOR DRIVE FOR ELECTRICAL SWITCHING DEVICES, IN PARTICULAR CIRCUIT BREAKERS |
US5808532A (en) * | 1996-01-24 | 1998-09-15 | Circuit Protection & Controls, Inc. | Motorized module for field assembly to circuit breakers |
CN101188178B (en) * | 2007-11-30 | 2011-01-19 | 赵建清 | Electric leakage current breaker |
CN111863555B (en) * | 2020-07-15 | 2022-11-25 | 诸暨市东白电力安装工程有限公司 | Adjustable air switch's tripping operation structure |
CN112071703B (en) * | 2020-09-28 | 2022-10-25 | 湖北楚天电气有限公司 | Power-off protection operating mechanism of isolating switch box |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3328731A (en) * | 1965-06-14 | 1967-06-27 | Huska Paul | Combined electrical circuit breaker and actuator |
DE3014827C2 (en) * | 1980-04-15 | 1983-10-27 | Siemens AG, 1000 Berlin und 8000 München | Motor drive for low-voltage circuit breakers |
JPS56162436A (en) * | 1980-05-20 | 1981-12-14 | Matsushita Electric Works Ltd | Circuit breaker |
-
1984
- 1984-03-09 IT IT2117984U patent/IT8421179V0/en unknown
-
1985
- 1985-02-18 EP EP19850200198 patent/EP0154369B1/en not_active Expired
- 1985-02-18 DE DE8585200198T patent/DE3565740D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3565740D1 (en) | 1988-11-24 |
EP0154369A2 (en) | 1985-09-11 |
EP0154369A3 (en) | 1986-07-23 |
IT8421179V0 (en) | 1984-03-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4703137A (en) | Electric switchgear with a pull-out frame and a switching device that can be inserted therein | |
US5300907A (en) | Operating mechanism of a molded case circuit breaker | |
US4392036A (en) | Low-voltage protective circuit breaker with a forked locking lever | |
US5424701A (en) | Operating mechanism for high ampere-rated circuit breakers | |
US4286242A (en) | Mechanical interlock for low voltage circuit breakers | |
RU97101880A (en) | OPERATING MECHANISM OF THE AUTOMATIC CIRCUIT BREAKER WITH THE LOCKING SYSTEM | |
US4855698A (en) | Protective switching apparatus with remotely controlled opening and closing of the contacts | |
EA014194B1 (en) | Device for controlling an electric protection device and electric protection device including same | |
JPH0241854B2 (en) | ||
AU2009202174B9 (en) | Control device of an electrical switchgear unit comprising a device for indicating welding of the contacts, and an electrical switchgear unit comprising one such device | |
US4687891A (en) | Fast manual closing mechanism of a miniature circuit breaker | |
EP0154369B1 (en) | Motor control, in particular of the energy storage type, for low-voltage safety switches | |
EP1183703B1 (en) | High energy closing mechanism for circuit breakers | |
US4821008A (en) | Latching operating mechanism of a three-position circuit breaker | |
KR880001010A (en) | Circuit breakers with electrical disconnect means | |
US4128750A (en) | Circuit breaker closure control and condition indicator apparatus | |
JPS6412335U (en) | ||
US4916268A (en) | Operating mechanism of a three-position switch | |
SE466674B (en) | SWITCH DEVICE WITH REMOTE CONTROL | |
GB1222456A (en) | A current-limiting circuit breaker | |
EP1515351A2 (en) | Circuit breaker handle block | |
EP1296343B1 (en) | Switch, in particular battery cutout switch for vehicles and the like | |
JPH0275124A (en) | Breaker auxiliary switch mechanism | |
CN107452525B (en) | Mechanism for indicating electrical fault and electrical protection device comprising same | |
CA2037046A1 (en) | Self-coordinated device for the control and protection of electrical equipment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): BE CH DE FR GB LI NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE CH DE FR GB LI NL SE |
|
17P | Request for examination filed |
Effective date: 19861105 |
|
17Q | First examination report despatched |
Effective date: 19880321 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE FR GB LI NL SE |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: ABB SACE S.P.A. |
|
REF | Corresponds to: |
Ref document number: 3565740 Country of ref document: DE Date of ref document: 19881124 |
|
ET | Fr: translation filed | ||
NLT1 | Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1 |
Owner name: ABB SACE S.P.A. TE BERGAMO, ITALIE. |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
BECN | Be: change of holder's name |
Effective date: 19881019 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19940224 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19940228 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19950126 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19950127 Year of fee payment: 11 |
|
EAL | Se: european patent in force in sweden |
Ref document number: 85200198.1 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19950208 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19950209 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19950216 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19950228 Ref country code: CH Effective date: 19950228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19950901 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19950901 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19960218 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19960219 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19960228 |
|
BERE | Be: lapsed |
Owner name: ABB SACE S.P.A. Effective date: 19960228 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19960218 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19961031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19961101 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |