EP3869526A1 - Perfektionierter manueller auslöser - Google Patents

Perfektionierter manueller auslöser Download PDF

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Publication number
EP3869526A1
EP3869526A1 EP21158043.6A EP21158043A EP3869526A1 EP 3869526 A1 EP3869526 A1 EP 3869526A1 EP 21158043 A EP21158043 A EP 21158043A EP 3869526 A1 EP3869526 A1 EP 3869526A1
Authority
EP
European Patent Office
Prior art keywords
plate
slide plate
section
housing
push plate
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.)
Granted
Application number
EP21158043.6A
Other languages
English (en)
French (fr)
Other versions
EP3869526B1 (de
Inventor
Cédric DELIGNAT
Laurent DAMONVILLE
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.)
Neutronic
Original Assignee
Neutronic
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 Neutronic filed Critical Neutronic
Publication of EP3869526A1 publication Critical patent/EP3869526A1/de
Application granted granted Critical
Publication of EP3869526B1 publication Critical patent/EP3869526B1/de
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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • 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
    • H01H9/02—Bases, casings, or covers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/12—Manually actuated calamity alarm transmitting arrangements emergency non-personal manually actuated alarm, activators, e.g. details of alarm push buttons mounted on an infrastructure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • 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
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H01H2003/0233—Emergency operating parts, e.g. for stop-switch in dangerous conditions for alarm triggering, e.g. fire alarm, emergency off switches operated by breaking a glass
    • 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
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H01H2003/0246—Resetting of bistable emergency operating part by rotating itself or an accessory
    • 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 invention relates to a device of the manual trigger type, and more particularly to such a device comprising a trigger mechanism and a housing housing the trigger mechanism, the trigger mechanism comprising a push plate and a slide plate each mounted to translation in the housing, the trigger mechanism having an armed state, where the push plate blocks the translation of the slide plate, and a tripped state, where the push plate releases the translation of the slide plate.
  • Manual triggers are widely used, in particular in places of public reception, for security purposes in particular. It is a question of allowing an individual to act on a more extensive system, of varied complexity, simply by pressing on the push plate of the release.
  • manual triggers are provided for controlling the closing of fire doors or the opening of emergency doors. Triggers of this type are also used for triggering fire alarms or activating smoke extraction systems. These triggers are also used to allow emergency shutdown of electrical or gas circuits, or to stop a machine or an installation.
  • FR 2 707 784 A1 in the name of the Applicant describes a manual release of the type described in the introduction.
  • This manual trip unit is used to indicate that a trip has been triggered by means of an indicator plate.
  • a manual call point must be reliable. Because of their widespread use and their safety, triggers should be easy to maintain.
  • the Applicant has set itself the objective of being able to test the electronics without affecting the state of the trigger mechanism. This objective forced her to substantially review the mechanism of known triggers.
  • the trigger mechanism includes a push plate and a slide plate each translatably mounted in the housing.
  • the trigger mechanism has an armed state, where the push plate blocks the translation of the slide plate, and a tripped state, where the push plate releases the translation of the slide plate.
  • the push plate includes a central column and the slide plate includes an oblong hole in which the central column engages.
  • the central column and the oblong hole comprise first sections, homologous to each other, shaped so as to engage each other in the armed state of the mechanism and second sections, homologous to each other and adjacent to the first sections, shaped so as to slide relative to one another in the triggered state of the mechanism.
  • the proposed trigger is more reliable, due to a simplified trigger mechanism.
  • the engagement of a new kind between the push plate and the slide plate has the effect of reducing the pressure to be applied on the push plate in order to trigger while limiting the risk of unintentional triggering.
  • the triggering also proves to be more reliable.
  • the proposed trigger can operate, as regards the push plate, with a single elastic return member, which bears substantially in the center of this plate. This decreases the cost of this trigger and increases its reliability. This central arrangement also frees up space inside the housing, thus facilitating access to the electronic components.
  • the trigger 1 comprises a housing 10 in the general shape of a rectangular parallelepiped, with a front face 120 provided with a main window 122 and a rear face 130, opposite to the front face 120, through which the housing 10 is fixed. on the wall.
  • the rear face 130 and the front face 120 are mutually opposed in a first direction, or X direction.
  • the housing 10 also has a first pair of side faces, mutually opposed in a second direction, or Y direction, orthogonal to the X direction: a left face 140, to the left of the figure 1 , and a right face 150.
  • the housing 10 also has a second pair of side faces, mutually opposed in a third direction, or Z direction, orthogonal to the X and Y directions: an upper face 160, at the top of the figure 1 , and a lower face 170.
  • the Z direction corresponds substantially to the vertical and the Y direction to the horizontal.
  • the window 122 is generally rectangular and extends substantially horizontally.
  • the front face 120 is also provided with an additional window 124, optional.
  • This additional window 124 has a generally rectangular appearance, of smaller dimensions than the main window 122.
  • This additional window 124 reveals an indicator plate (not shown in the figures), for example of the type described in FR 2 707 784 A1 .
  • the indicator plate visually indicates the status of manual call point 1.
  • the housing 10 is made in several parts.
  • the housing 10 comprises an elementary part shaped as a cover 12.
  • the cover 12 is generally hollow with a front face corresponding to the front face 120 of the housing 10 and a rear face open to the inside of the cover 12.
  • the cover 12 is shaped into a shell.
  • the housing 10 further comprises a second elementary part shaped as a plate 16.
  • the plate 16 is mounted on the cover 12, at the rear thereof, so as to close, in part at least, the rear face of the cover. 12.
  • the plate 16 is fixed to the cover 12, for example by clipping, as here in the upper part of the housing 10, or by screwing, as here in the lower part.
  • the cover 12 is here generally parallelepipedal.
  • the plate 16 is generally rectangular, corresponding in shape to the cover 12.
  • the cover 12 has an upper wall 1200 and a lower wall 1202 which are mutually opposed and which respectively form a part at least of the upper 160 and lower 170 face of the housing 10.
  • the cover 12 also has a right wall 1204 and a left wall. 1206, mutually opposed and which form respectively the right face 150 and the left face 140 of the housing 10, at least in part.
  • the housing 10 further comprises a third elementary part in the form of a base 14.
  • the base 14 is generally hollow with a rear face which forms the rear face 130 of the housing 10 and a front face open to the bottom. 'Inside the base 14.
  • the base 14 is shaped as a shell.
  • the base 14 is here generally parallelepiped, corresponding in shape to the plate 16.
  • the base 14 is mounted on the rear face of the cover 12 via its front face, with the plate 16.
  • the plate 16 closes, in part at least, the front face of the base 14.
  • the base 14 is mounted on the rear face of the plate 16.
  • the base 14 is arranged so as to contribute, in part at least, to the fixing of the housing 10 against the wall.
  • the base 14 has one or more orifices opening out on its rear face and allowing the passage of fasteners elements.
  • the base 14 is intended for an installation of the trigger 1 of the so-called "protruding" type, where all the constituent elements of the trigger 1 are housed in the housing, at least part in the base 14.
  • the housing 10 may be without a base 14. This is the case, in particular, of an installation of the so-called "surface-mounted” type, where at least part of the components of the trip unit 1 are located outside the unit. housing 10, most often housed in a recess in the wall.
  • the plate 16 then corresponds to the rear face 130 of the housing 10. To do this, the plate 16 is configured to allow the housing 10 to be fixed to a wall.
  • the plate 16 is provided with a pair of oblong holes which allow the passage of fasteners.
  • the trigger 1 comprises a trigger mechanism 20, housed in the housing 10.
  • the mechanism 20 comprises a push plate 22, mounted in a guided manner in translation in the housing 10, in the direction X.
  • This push plate 22 is located near the front face 120 of the housing 10. The plate is accessed. pusher 22 through the first window 122.
  • the pusher plate 22 is mounted in the cover 12.
  • This direction X corresponds to the direction of actuation of the trigger 1, ie the direction in which the user must press the plate -pusher 22 to trigger.
  • first compression spring 26 The translation of the push plate 22 relative to the housing 10 is constrained by an elastic return member, here a first compression spring 26.
  • This first spring 26 is arranged in the X direction, interposed between the push plate 22 and the plate. 16.
  • the push plate 22 rests on the front face of the housing 10 under the effect of the first spring 26. .
  • the mechanism 20 comprises a slide plate 24 mounted in the housing 10 in a guided manner in translation in the Z direction.
  • the slide plate 24 is mounted in the cover 12.
  • the translation of the slide plate 24 relative to the housing 10 is constrained by an elastic return member, here a second compression spring (not visible on the figure 5 ), arranged in the Z direction, between the slide plate 24 and the cover 12.
  • the second spring is located in the upper part of the housing 10.
  • the second spring could also be installed in a lower part of this housing 10.
  • the pusher plate 22 and the slide plate 24 are further engaged with each other, such that in a first relative position, the pusher plate 22 prevents translation of the slide plate 24 relative to the housing. 10, the second spring being in a highly stressed state (here compressed) and, in a second relative position, the push plate 22 releases this translation of the slide plate 24.
  • the slide plate 24 moves in the Z direction under the effect of the second spring, until it meets a stop 100, here formed in cover 12.
  • the first relative position of the push plate 22 and the slide plate 24 corresponds to a first state of the mechanism 20, where the trigger 1 is armed.
  • the second relative position of the push plate 22 and the slide plate 24 corresponds to a second state of the mechanism 20, where the trigger 1 is triggered.
  • the mechanism 20 changes from the first state to the second state following a displacement of the push plate 22 in the direction X, in a direction which moves this push plate 22 away from the front face 120 of the housing 10. Such a displacement compresses the first one. spring 26. Typically, this displacement corresponds to the support of a user.
  • the first and second states of mechanism 20 are stable. In the absence of an external intervention, the mechanism 20 remains in the state in which it is.
  • the trip device 1 further comprises an electronics 40 housed in the housing 10.
  • the electronics 40 have a first state, for example not active, and a second state, for example active. For example, when it is in its active state, the electronics 40 generates the signal activating a security element.
  • the electronics 40 include a two-state switch, in the form of a microswitch 42 with a movable part 420 which serves as a contact.
  • the movable part 420 has a stable position, where the of a microswitch 42 is in a first switching state and an unstable position, where the microswitch 42 is in a second switching state.
  • the electronics 40 In the stable position of the microswitch 42, the electronics 40 is in its first state, while in the unstable position of this microswitch 42, the electronics 40 is its second state.
  • the mechanism 20 When the mechanism 20 is armed, the movable part 420 of the microswitch 42 is in a stable position, free of stress. When it is triggered, the mechanism 20 forces the movable part 420 of the microswitch 42 into its unstable state.
  • the electronics 40 include two micro-switches 42, each of them being intended to be connected to a respective system.
  • the trigger 1 can thus act simultaneously on two larger systems.
  • one of these systems can be a fire door, the closing of which is controlled by one of the microswitches 42, and the other of these systems can be a central system, notified of a press. on the release 1 by the other of the micro-switches 42.
  • Each microswitch 42 is disposed near the trigger mechanism 20, in particular near the slide plate 24.
  • the slide plate 24 In the armed state of the trigger mechanism 20, the slide plate 24 is remote from the microswitches 42. , leaving the movable part 420 in its stable position.
  • the slide plate 24 In the tripped state of the trigger mechanism 20, the slide plate 24 is in contact with the microswitches 42 and maintains the movable part 420 of each microswitch 42 in its second position.
  • the electronics 40 could include a single micro-switch. This is usually the case when trigger 1 is for a fire alarm system.
  • the base 14 optionally has at least one pair of oblong holes 1400, visible on the figure 5 , in the general shape of an arc of a circle or a half-moon.
  • the circular arc shapes of the oblong holes 1400 are arranged in the base in a concentric manner.
  • Each of the oblong holes 1400 is widened at one of its ends 1402, compared to the rest of said oblong hole 1400.
  • the oblong holes 1400 may be symmetrical with respect to an axis of symmetry parallel to the X direction of the housing 10.
  • the base 14 could include three oblong holes 1400 or more.
  • the wall comprises a generally tubular recessing pot (not visible in the figures), typically molded with the wall.
  • the pot opens at one end on the wall, allowing the cables connecting electronics 40 to the system for which the trip unit 1 is provided.
  • the trigger 1 is installed at the end of the pot and the electronics 40 are connected to the cables.
  • the pot further comprises as many screw threads as the base has oblong holes 1400.
  • a screw is screwed into each of the threads of the pot.
  • the base 14 is placed at the end of the pot, and each of the heads of these screws passes through the end 1402 widened by one of the oblong holes 1400.
  • the base 14 is then pivoted around the axis of symmetry. oblong holes 1400, until the Y direction of the housing 10 is horizontal.
  • the shank of each of the screws is engaged with the rest of the oblong hole 1400.
  • the screws are then screwed so as to press the base 14 against the wall and / or against the end of the pot.
  • Slotted holes 1400 allow housing 10 to be secured to the wall without having to remove or install additional screws.
  • the installation of the housing 10 is simplified compared to an assembly where the base 14 is directly screwed to the wall.
  • the arcuate shape of the oblong holes 1400 makes it easy to adjust the inclination of the housing 10 horizontally.
  • the housing 10 is easily fixed to the wall and its horizontality does not depend on the orientation of the pot, the two threads of which may not be at the same level as one another.
  • the plate 16 may also include two oblong holes 1600, similar to those of the base 14, each with an end 1602 enlarged with respect to the rest of said oblong hole 1600. This allows the plate 16 to be fixed with the base 14 to the screws of the pot. The fixing of the housing 10 is more secure.
  • the push plate 22 comprises a main plate 220 and a portion arranged as a blocking member of the slide plate 24, or retaining portion 224, held projecting from one side of the main plate 220 by a connecting portion 222. , here adjacent to the retaining portion 224.
  • the connecting portion 222 and the retaining portion 224 are here arranged substantially at the center of the main plate 220.
  • the main plate 220, the retaining portion 224 and the link portion 222 are made integrally, as respective sections of a portion of the column-shaped push plate 22 234.
  • a first section of this column 234, or end section, corresponds to the retaining portion 224, while a second section, adjacent to the first, corresponds to the connecting portion 222.
  • the column 234 is here arranged at the center of the main plate 220. Column 234 here extends along an alignment axis 226 perpendicular to main plate 220.
  • the push plate 22 is mounted in the housing 10 such that the main plate 220 is disposed parallel to the front face 120 of the housing 10 and the retaining portion 224 directed towards the rear face 130 of this housing 10.
  • the main plate 220 is generally rectangular.
  • the push plate 22 is mounted in the housing 10 such that one of its dimensions, length or width, follows the Z direction, the other in the Y direction.
  • the connecting portion 222 and the retaining portion 224 each have a first extent in a direction parallel to the plane of the main plate 220. This direction is perpendicular to the direction of translation of the push plate 22 relative to the housing 10 and to the direction of translation of the slide plate 24 relative to this housing 10, the direction Y. This extent corresponds respectively to a width W1 of the connecting portion 222 and a width W2 of the retaining portion 224. The width W1 is less than the second width W2.
  • the connecting portion 222 and the retaining portion 224 each have a second extent in a direction parallel to the plane of the main plate 220. This direction is perpendicular to the direction of translation of the push plate 22 relative to the housing 10 and parallel to it. the direction of translation of the slide plate, here the Z direction. This second extent corresponds respectively to a length L1 of the connecting portion 222 and a length L2 of the retaining portion 224.
  • the connecting portion 222 and the retaining portion 224 each have a third extent in a direction orthogonal to the plane of the main plate 220. This direction is parallel to the direction of translation of the push plate 22, here the X direction. third extent corresponds respectively to a height H1 of the connecting portion 222 and a thickness H2 of the retaining portion 224. The height H1 is here substantially greater than the thickness H2.
  • the connecting portion 222 and the retaining portion 224 each have a respective generally rectangular cross section.
  • the main plate 220 of the push plate 22 has two wedges 2200 and 2202 optionally knocked down. This results in an asymmetry of the main plate 220 between its upper part provided with corners and its chamfered lower part. This asymmetry plays the role of a keying device during assembly of the mechanism 20. As a variant (not shown in the figures), the wedges 2200 and 2202 can form a shoulder also playing the role of a keying device.
  • the push plate 22 comprises at the end 236 of the central column 234 a first seat 221 capable of receiving the first spring 26.
  • the first seat 221 comprises a first finger 230 which is generally frustoconical.
  • the first finger 230 projects from the central column 234 along the alignment axis 226.
  • the first finger 230 has a frustoconical side wall 2300.
  • the first spring 26, when received by the first seat 221, is intended to come to rest against the side wall 2300.
  • the first finger 230 then blocks the movements of the first spring 26 radially with respect to the alignment axis 226.
  • the first finger 230 thus maintains the first spring 26 on the first seat 221.
  • the first finger 230 increases the simplicity, compactness and robustness of the first seat 221.
  • the manufacture of the push plate 22 and the assembly of the mechanism 20 are made. further simplified.
  • a recess 228 is formed at the end 236 of the column 234, in the retaining portion 224.
  • the recess 228 can reach the connecting portion 222.
  • the first finger 230 is located at the bottom of the recess 228.
  • the recess 228 reduces the bulk of the mechanism 20.
  • the slide plate 24 comprises a second seat 241 capable of accommodating the second spring 28.
  • the slide plate 24 further comprises an opening shaped as an oblong hole 240 which passes through the slide plate 24 from one of its faces to the other.
  • the oblong hole 240 is shaped like a groove, and extends at least in an alignment direction 243 of the slide plate 24 which corresponds to the direction of translation of the slide plate 24, here the direction Z.
  • This oblong hole 240 is intended to receive at least a part of the connecting portion 222 and of the retaining portion 224 of a plate of the type of the push plate 22 described in relation to the figures 9 to 12 .
  • the oblong hole 240 has a wide portion 242, shaped to allow passage of the retaining portion 224, and a narrow portion 244 shaped to allow passage of the connecting portion 222.
  • the wide portion 242 and the portion narrow 244 are mutually contiguous in the Z direction, in that order in the direction in which the second spring 28 is biased by the slide plate 24 (here, compressed).
  • the narrow portion 244 is here closer to the second seat 241 than the wide portion 242.
  • the wide portion 242 and the retaining portion 224, respectively the narrow portion 244 and the connecting portion 222, are homologous to each other.
  • the wide portion 242 and the narrow portion 244 are each generally rectangular in shape.
  • the wide portion 242 of the oblong hole 240 has a first extent in a direction transverse to the direction of translation of the slide plate 24, here the direction Y, or width W3.
  • the width W3 is greater than the width W2 of the retaining portion 224 of the push plate 22.
  • the narrow portion 244 of the oblong hole 240 has a first extent in the Y direction, or width W4. This width W4 is greater than the width W1 of the connecting portion 222 and less than the width W2 of the retaining portion 224.
  • the wide portion 242 and the narrow portion 244 of the oblong hole 240 each extend in the direction of translation of the slide plate 244, here the direction Z, respectively along a length L3 and a length L4.
  • the oblong hole 240 forms a pair of shoulders 246, where the wide portion 242 connects with the narrow portion 244, in the Y direction, in the direction in which the second spring 28 is compressed by the slide plate 24.
  • the shoulders 246 correspond to the difference between the widths W3 and W4.
  • the width W1 of the connecting portion 222 is substantially less than the width W4 of the narrow portion 244.
  • This width W4 is substantially less than the width W2 of the retaining portion 224.
  • This width W2 is substantially less than the width W3 of the large portion 242.
  • the slide plate 24 has a thickness H3 in the direction X.
  • the thickness H3 is less than or equal to the thickness H1 of the connecting portion 222.
  • the thickness H3 of the slide plate 24 is close to l 'thickness H1 of the connecting portion 222.
  • the total thickness of the mechanism 20 in the direction X is reduced.
  • the second seat 241 of the slide plate 24 includes a recess 2500 on one of its sides.
  • the recess 2500 extends along the alignment direction 243.
  • the second spring 28 is intended to come to bear against the bottom of the recess 2500 when the second seat 241 receives the second spring 28.
  • the slide plate 24 includes an optional second finger 250, at the bottom of the recess 2500.
  • the second finger 250 protrudes from the slide plate 24 into the bottom. direction Z.
  • the second finger 250 is here parallelepiped.
  • the second finger 250 could be cylindrical.
  • the second finger 250 is intended to hold the second spring 28 in the second seat 241.
  • the second seat 241 further comprises a platform 2410 in the extension of the bottom of the recess 2500.
  • the platform 2410 extends perpendicular to the direction of alignment 243 of the slide plate 24.
  • the second spring 28 is intended for to rest against the platform 2410.
  • the platform 2410 increases the surface against which the second spring 28 can rest, without having to increase the thickness of the slide plate 24.
  • the slide plate 24 comprises a contact portion 252 disposed on the side of the support plate 16.
  • the contact portion 252 is intended to actuate the micro-switches 42.
  • the contact portion here comprises two lugs 2520 and 2522 projecting from the slide plate 24. These two lugs 2520 and 2522 are here generally flat, and parallel to the X and Z directions. Each lug 2520, 2522 is intended to come against one of the microswitches 42.
  • the slide plate 24 here includes a pair of optional ribs 256 which extend from the large portion to an edge of the slide plate 24 opposite the second seat 241, parallel to the alignment direction 243.
  • the pair of ribs 256 increases the rigidity of the slide plate 24. This is useful, in particular, for rearming.
  • Slide plate 24 further includes a pair of optional flanges 258.
  • the flanges 258 stiffen the slide plate 24 in the Z direction. This pair of flanges 258 further improves the flatness of the slide plate 24, when this slide plate 24 is fabricated by molding.
  • the slide plate 24 includes an optional opening 260, here provided in one of its corners.
  • the front face 120 of the housing 10 can be closed by a removable shutter (not shown in the figures), typically mounted on a hinge.
  • the electronics 40 can then include a presence sensor serving to detect the closure and / or and the opening of the shutter.
  • This presence sensor comprises a movable contact portion which protrudes from the electronics 40 to the front of the housing 10.
  • the opening 260 allows this movable contact portion to pass through the slide plate 24.
  • the slide plate 24 can thus be used in different types of manual releases.
  • the slide plate 24 can receive a label stuck to the front (not shown in the figures).
  • the label is visible through the second window 124 after triggering.
  • the slide plate 24 with the label acts as an indicator plate, for example of the type described in FR 2 707 784 A1 .
  • the slide plate 24 may optionally include on its front face a depression 262, visible on the figures 11 and 13 .
  • the depression 262 is intended to receive the label, thus avoiding friction between the label and the push plate 22.
  • the label is not worn during the successive tripping and resetting of the mechanism 20.
  • the depression 262 here has a general shape complementary to that of the label to be glued on the slide plate 24.
  • the gluing of the label to the bottom of the depression 262 is simpler and more precise.
  • the pusher plate 22 is mounted in the housing 10 such that the center of the main plate 220 is opposite the window 122, in particular approximately in the center of this window 122.
  • the first seat 221 receives the first. spring 26. When pressing on the push plate 22, this support generally occurs at the center of the window 122 and along the alignment axis 226, this alignment axis 226 corresponding to the axis of the first spring 26.
  • the first spring 26 is interposed between the link portion 222 and the support plate 16.
  • the link portion 222 and the first spring 26 are aligned in the X direction along an alignment axis 226.
  • the turns of the first spring 26 are threaded around the first finger 230.
  • One end of the first spring 26 bears against the side wall 2300 of the first finger 230.
  • This support is substantially linear, in a circle centered on the alignment axis 226.
  • the first finger 230 further maintains the first spring 26 in the first seat 221. This simplifies the assembly of the mechanism 20 and improves its stability, without increasing its bulk.
  • the second seat 241 receives the second spring 28.
  • the second spring 28 rests against the bottom of the recess 2500 and against the platform 2410 of the slide plate 24.
  • the turns of the second spring 28 are threaded around the second finger 250
  • the second finger 250 maintains the second spring 28 in the second seat 241.
  • the size of the mechanism 20 is thereby reduced.
  • the mechanism 20 is also more stable and easier to assemble.
  • the contact portion 252 is opposite the movable parts 420 of the microswitches 42, so as to press on these movable parts 420 when the mechanism 20 is in the triggered state.
  • the connecting portion 222 passes through the narrow portion 242.
  • the retaining portion 224 is located beyond the slide plate 24 in the direction of compression of the first spring 26.
  • the connecting portion 222 is located. engaged across the slide plate 24, in the narrow portion 244.
  • the contact portion 252 comes against the microswitch 42 and maintains the movable part 420 of the microswitch 42 in its unstable position. Electronics 40 is active.
  • the push plate 22 In the armed state, the push plate 22 is held in abutment against the front face 120 of the housing 10 by the action of the first spring 26 in the direction X towards the front of the housing 10.
  • the retaining portion 224 of the pusher plate 22 is at the retaining plate 24 in the X direction, engaging the large portion 242 of the elongated hole 240.
  • the retaining portion 224 is wider than the narrow portion 244 so that the locking portion retainer 224 cannot engage in the narrow portion 244.
  • the portion retainer 224 is located, in part at least, in abutment against the shoulder 246.
  • the push plate 22 prevents the translation of the slide plate 24 relative to the housing 10, in particular under the effect of the second spring 28.
  • the portion contact 252 of the slide plate 24 is remote from the microswitch 42, leaving the movable part 420 in its stable position. Electronics 40 is not active.
  • the armed state is maintained as long as a pressure high enough to overcome the first spring 26 is not applied to the push plate 22.
  • the change from the armed state to the triggered state of the mechanism 20 is as follows .
  • the retaining portion 224 is narrow enough to be able to pass through the wide portion 242. On release, that is to say when a user presses on the pressure plate 22, the retaining portion 224 is translated beyond the limit. slide plate 24, out of the wide portion 242.
  • the connecting portion 222 engages in the wide portion 242.
  • the translation of the slide plate 24 relative to the housing 10 is released.
  • the slide plate 24 is free to slide relative to the pusher plate 22 in the direction of alignment of the wide portion 242 and the narrow portion 244.
  • the second spring 28 pushes the slide plate 24 in its direction of translation, up to the stop 100.
  • the connecting portion 222 slides in the wide portion 242 and in the narrow portion 244, until it comes against the stop 100.
  • the push plate 22 and the slide plate 24 are then in their second relative position.
  • the connecting portion 222 passes through the narrow portion 244.
  • the actuation is particularly stable, despite the action of a single spring.
  • the assembly of the mechanism 20 is improved.
  • the compactness of the push plate 22 is also better than in conventional triggers.
  • the push plate 22 is of a more robust design. This also makes it possible to use a single spring to produce the elastic member constraining the push plate 22, which is more economical.
  • the triggered state is maintained as long as the mechanism 20 is not reset.
  • the transition from the triggered state to the armed state of the mechanism 20, that is to say the rearming, takes place as follows.
  • the slide plate 24 here comprises a portion intended for rearming 254.
  • the rearming portion 254 here cooperates with a key 30 (visible on the figure 1 ) to reset the trigger 1, that is to say to return the mechanism 20 to its first state.
  • the key 30 can be common to several triggers.
  • the key 30 here comprises a body 32 serving to grip it and two parallel legs 36 and 38, at a distance from each other and projecting from one side of the body 32.
  • the legs 36 and 38 form the functional part.
  • 34 of the key and are here in the form of a ramp with an L-shaped cross section which decreases as one moves away from the body 32.
  • the reset portion 254 here takes the form of two lugs 2540 and 2542 each shaped in a ramp, the slope of which is complementary to the slope of the ramps of the legs 36 and 38 of the key 30, respectively.
  • the mechanism 20 is reset by inserting the key 30 into an access 126 (visible on the figures 1 and 2 ) provided in the cover 12.
  • the access 126 is made on the front wall 120 of the cover 12.
  • the access 126 could be made on the underside of the cover 12.
  • the access 126 can be shaped. complementary to that of the legs 36 and 38, as in the embodiment described here, or, alternatively, more larger than the rearming portion 34.
  • the access 126 comprises two through openings 1260 and 1262 in L arranged symmetrically around the plane VI-VI.
  • the introduction of the key 30 in the access 126 pushes the slide plate 24 against the second elastic member, which translates the slide plate 24 to the armed state.
  • the mechanism 20 remains in the armed state when the key 30 is withdrawn.
  • the key 30 When resetting, the key 30 is inserted into an opening 126 of the cover 12 in the X direction.
  • the slide plate 24 is then pushed in the Z direction against the second spring 28, until the portion The wide 242 of the oblong hole 240 is at the retaining portion 224 of the pusher 22.
  • the first spring 26 then pushes the pusher plate 22 in the X direction towards the front of the housing 10.
  • the retaining portion 224 passes through the wide portion 242 of the oblong hole 240, which blocks the translation of the slide plate 24 in the Z direction.
  • the mechanism 20 is then in the armed state.
  • the slide plate 24 could be devoid of a reset portion 252, and the key 30 could be introduced through the bottom wall 1202 (opposite the second spring 28) and directly push the slide plate 24 in order reset the trigger mechanism.
  • a trigger mechanism 20 comprising a pusher plate 22.
  • a pusher plate 22 As a variant, one could imagine a pusher of another shape, in particular with a non-planar front face, for example to improve the guiding in translation of the pusher, or with a central depression to encourage users to press in the center of the pusher.
  • the slide plate 24 translates vertically, along the Z direction.
  • the mechanism 20 could be arranged so that the translation plate 24 translates along the Y direction, i.e. from left to left. right and vice versa.
  • the second spring 28 operates in compression. However, one could consider a second spring 28 operating in tension.
  • the large portion 242 and the small portion 244 of the oblong hole 240 are arranged so that the large portion 242 is closer to the second seat 241 than the small portion 244.
  • the retaining portion 224 has a thickness which decreases in the Z direction so as to conform this portion according to a chamfer profile, or first chamfer 232.
  • This first chamfer 232 is located opposite the plate. main 220.
  • the pusher plate 22 is mounted in the housing 10 such that the thick part of the retaining portion 224 is directed towards the second spring 28.
  • the first chamfer 232 reduces the friction between the slide plate 24 and the push plate 22 when triggering or resetting the manual call point 1.
  • the slide plate 24 and the push plate 22 slide better with respect to one another. 'other when the retaining portion 224 is translated beyond the slide plate 24.
  • the triggering of the mechanism 20 is more straightforward and the rearming easier.
  • the slide plate 24 has a thickness which increases towards the second seat 241 from the shoulder 246 so as to shape the slide plate 24 into a chamfer profile, or second chamfer 248.
  • the second chamfer 248 is formed on one face. of the slide plate 24 facing the retaining portion 224 when the mechanism 20 is assembled.
  • the second chamfer 248 reduces the stroke of the push plate 22 required to trigger the mechanism 20, without having to reduce the thickness of the slide plate 24. Triggering is easier. In addition, this triggering is more reliable in the event of eccentric pressure from a user on the push plate 22.
  • the housing 10 comprises on one of its lateral faces an orifice 44 (visible on the figure 3 ).
  • This orifice 44 allows access to the micro-switches 42 of the electronics 40 from the outside in order to play the contacts of said micro-switches 42. This makes it possible to test the correct operation of the electronics 40 without dismantling the housing 10 during routine tests.
  • the orifice can be closed by a cap, not visible in the figures.
  • the orifice 44 may be slightly eccentric with respect to the plane VI-VI, as can be seen on the figure 3 . This allows, when the electronics 40 only include a single microswitch 42, that the orifice 44 is opposite said microswitch 42. The orifice 44 can then be of reduced size without compromising access to the microphone. -switch 42.
  • the orifice 44 could be centered and wider. This makes it possible to test the correct operation of the electronics 40 through a single orifice 44, whether the electronics 40 include one or more microswitches 42.
  • a first seat 221 of the frustoconical finger type has been described (where the first spring rests against the lateral surface of the finger) and a second seat 241 of the flat bottom type (where the second spring rests against a flat bottom , here formed of the bottom of the recess 2500 and of the platform 2410).
  • the first seat 221 could be of the flat bottom type (with or without optional finger) and / or the second seat 241 could be of the frustoconical finger type.
  • the manual call point 1 can be installed in a larger security system, such as a fire alarm device, an automatic door, a fire door, a special safety plan (PPMS) or a device. smoke extraction.
  • a triggering function can be the emission of a radio alarm signal to the fire alarm device, the automatic door unlocking, the closing of the fire door. , an alarm signal to the PPMS or the actuation of the smoke extraction device.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Toys (AREA)
  • Casings For Electric Apparatus (AREA)
EP21158043.6A 2020-02-21 2021-02-19 Perfektionierter manueller auslöser Active EP3869526B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2001764A FR3107610B1 (fr) 2020-02-21 2020-02-21 Déclencheur manuel perfectionné

Publications (2)

Publication Number Publication Date
EP3869526A1 true EP3869526A1 (de) 2021-08-25
EP3869526B1 EP3869526B1 (de) 2022-11-16

Family

ID=70456980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21158043.6A Active EP3869526B1 (de) 2020-02-21 2021-02-19 Perfektionierter manueller auslöser

Country Status (4)

Country Link
EP (1) EP3869526B1 (de)
CN (1) CN113299499A (de)
FR (1) FR3107610B1 (de)
PL (1) PL3869526T3 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2707784A1 (fr) 1993-07-15 1995-01-20 Neutronic Dispositif déclencheur d'alarme, notamment pour installation de détection d'incendie.
FR2835756A1 (fr) * 2002-02-12 2003-08-15 Axendis Declencheur manuel, notamment pour alarme d'incendie
EP1965399A1 (de) * 2007-03-01 2008-09-03 Siemens Schweiz AG Notrufschalter für ein Gefahrenmeldesystem
EP2091032A2 (de) * 2008-02-14 2009-08-19 Synaps Technology S.r.l. Handfeuermelder für Feueralarmsysteme

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2707784A1 (fr) 1993-07-15 1995-01-20 Neutronic Dispositif déclencheur d'alarme, notamment pour installation de détection d'incendie.
FR2835756A1 (fr) * 2002-02-12 2003-08-15 Axendis Declencheur manuel, notamment pour alarme d'incendie
EP1965399A1 (de) * 2007-03-01 2008-09-03 Siemens Schweiz AG Notrufschalter für ein Gefahrenmeldesystem
EP2091032A2 (de) * 2008-02-14 2009-08-19 Synaps Technology S.r.l. Handfeuermelder für Feueralarmsysteme

Also Published As

Publication number Publication date
FR3107610B1 (fr) 2022-01-21
FR3107610A1 (fr) 2021-08-27
EP3869526B1 (de) 2022-11-16
PL3869526T3 (pl) 2023-05-29
CN113299499A (zh) 2021-08-24

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