EP3417469B1 - Druckknopfbetätigter schalter mit einklemmschutzführungssystem - Google Patents

Druckknopfbetätigter schalter mit einklemmschutzführungssystem Download PDF

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Publication number
EP3417469B1
EP3417469B1 EP16834190.7A EP16834190A EP3417469B1 EP 3417469 B1 EP3417469 B1 EP 3417469B1 EP 16834190 A EP16834190 A EP 16834190A EP 3417469 B1 EP3417469 B1 EP 3417469B1
Authority
EP
European Patent Office
Prior art keywords
push button
case
lateral walls
operated switch
button operated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16834190.7A
Other languages
English (en)
French (fr)
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EP3417469A1 (de
Inventor
Pietro Rocereto
Tiziano Aletti
Giorgio LONGHI
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.)
BTicino SpA
Original Assignee
BTicino SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BTicino SpA filed Critical BTicino SpA
Priority to MA44214A priority Critical patent/MA44214B1/fr
Priority to PL16834190T priority patent/PL3417469T3/pl
Publication of EP3417469A1 publication Critical patent/EP3417469A1/de
Application granted granted Critical
Publication of EP3417469B1 publication Critical patent/EP3417469B1/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
    • 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
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • 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
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/60—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force with contact-driving member moved alternately in opposite directions
    • 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
    • H01H3/12—Push-buttons
    • H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • H01H2013/525—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch using a return spring acting perpendicular to the actuating direction

Definitions

  • the present description refers to the technical field of the electrical installations and, more particularly, it concerns a push button operated switch with an anti-jamming guiding system.
  • European patent EP1584096 discloses a push button operated switch comprising a supporting structure made of insulating material, or case, having the shape of a box and defining a recessed compartment for housing and for supporting the electromechanical components being part of the switch.
  • the case has an open side.
  • the switch also includes a push button slidingly coupled to the case by means of guide elements in order to close the open side.
  • the mechanical coupling between the push button and the case allows a relative and guided sliding of the push button with respect to the case along a sliding axis. Such sliding is necessary to command by means of the push button an electrical commutation of the switch.
  • a pressure of the push button determines an advancement of the push button with respect to the case.
  • a release of the push button determines a distancing movement of the push button with respect to the case.
  • the push button therefore moves between a forward position and a backward position, representing two end of stroke positions of the push button.
  • European patent EP1866944 discloses possible solutions to the jamming problem.
  • German patent application DE 197 57 928 A1 discloses a push button according to the preamble of claim 1.
  • the object of the present description is to make available a push button operated switch being such as to fulfil the above described need with reference to the
  • push button operated switch it is meant a switch operated manually through a push button in order to determine one, or at least one, electrical switching.
  • the push button operated switch 10 is of modular type, that is intended to be mounted on a supporting frame for the wall installation beside other modular circuit breakers of the same type or in general other electrical modular appliances, as for example sockets.
  • the switch 10 can be operated manually and can be used for example for controlling the electric power and/or the lighting in a residential or commercial building.
  • switch it is meant both a device for opening and closing a single electrical contact and a device for opening an electrical contact with the contemporary closing of another electrical contact and vice versa (diverter).
  • the push button operated switch 10 comprises a supporting structure 20 made of electrically insulating material, e.g. plastic, preferably having, but not restrictively, approximatively the parallelepiped shape.
  • the supporting structure 20, hereinafter called case includes a bottom wall 21 and four lateral walls 20a, 20b, 20c, 20d joined to the bottom wall 21.
  • the case 20 includes an open side 21' opposite to the bottom wall 21.
  • the lateral walls 20a, 20b, 20c, 20d and the bottom wall 21 define a recessed compartment adapted for housing the electromechanical components of the switch 10 and at least two electrical connecting terminals C1, C2, C3.
  • the recessed compartment of the case 20 houses, without any limitation, three electrical connecting terminals C1, C2, C3.
  • the bottom wall 21 is integrated in the case 20, however in one alternative embodiment the bottom wall 21 might be a piece separated from the lateral walls 20a, 20b, 20c, 20d of the case 20 and coupled to them.
  • the push button operated switch 10 comprises a push button 30, being operated manually to command an electrical switching of the switch 10, having a body provided with lateral walls 30a, 30b, 30c, 30d crossing the open side 21' of the case 20.
  • the push button 10 is adapted to slide with respect to the case 20 along a sliding axis Z-Z and along a delimited space between a forward position and a backward position.
  • forward position it is meant an end of stroke position in the approaching movement of the push button 30 to the case 20
  • backward position it is meant an end of stroke position in the distancing movement of the push button 30 from the case 20. It is therefore clear that the terms “forward” and “backward” refer to the position of the push button 30 with respect to the case 20.
  • the push button operated switch 10 comprises a system of spatially distributed guides adapted to guide the sliding of the push button 30 with respect to the case 20 along the sliding axis Z-Z.
  • the system of spatially distributed guides includes first guide elements 22, 32 operatively interposed between the lateral walls 20a, 20b, 20c, 20d of the case 20 and the lateral walls 30a, 30b, 30c, 30d of the body of the push button 30.
  • the system of spatially distributed guides also includes second guide elements 23, 24, 33, 34 spaced apart with respect to the first guide elements 22, 32 and placed with respect to the first guide elements 22, 32 at a lower distance from the bottom wall 21 of the case 20.
  • friction surfaces cooperating between them of the first guide elements 22,32 have a distance from the bottom wall 21 of the case 20 higher than the distance with respect to the bottom wall 21 of the case 20 of friction surfaces cooperating between them of the second guide elements 23,24,33,34.
  • the first guide elements 22, 32 include a first plurality of appendices 22 protruding from the lateral walls 20a, 20b, 20c, 20d of the case 20 towards the lateral walls 30a, 30b, 30c, 30d of the push button 30 and a second plurality of appendices 32 protruding from the lateral walls of the push button 30 towards the lateral walls 20a, 20b, 20c, 20d of the case 20 and each being adapted to contact a respective appendix 22 of the first plurality of appendix 22 in order to slide thereon when the push button 30 slides with respect to the case 20.
  • the first plurality of appendices 22 and the second plurality of appendices 32 allow the lateral walls 30a, 30b, 30c, 30d of the push button 30 to be spaced from the lateral walls 20a, 20b, 20c, 20d of the case 20 when the push button 30 slides with respect to the case 20.
  • the push button operated switch 10 is less vulnerable with respect to dust or sand intrusion within the lateral walls 20a, 20b, 20c, 20d of the case 20 and lateral walls 30a, 30b, 30c, 30d of the push button 30 that would otherwise cause a jamming inside a switch wherein, on the contrary, due to a wide overlapping between the lateral walls of the push button 30 and those of the case 20, there are wider friction surfaces.
  • the aforesaid protruding appendices 22, 32 are linear appendices, which in the shown example extend linearly along axis that are parallel between them and parallel to the sliding axis Z-Z.
  • the lateral walls of button 30 are parallel in twos and define edges 32', each of them being defined by a pair of adjacent lateral walls 30a, 30b, 30c, 30d of button 30.
  • Each appendix 32 of the second plurality of appendices is arranged on a corresponding edge 32'.
  • the edges 32' are bevelled.
  • the second guide elements 23, 24, 33, 34 are staggered with respect to the first guide elements 22, 32. In other words, the second guide elements 23, 24, 33, 34 are closer to some of the first guide elements 22, 32 and further from other first guide elements 22, 32.
  • the second guide elements 23, 24, 33, 34 include a guide seat 23 and a guide pin 33 having an end portion 34 slidable in the guide seat 23.
  • the guide pin 33 extends from the body of the push button 30 towards the bottom wall 21 of the case 20 while the guide seat 23 is fixed to the bottom wall 21 of the case 20.
  • the guide pin 33 is integrated in the push button 30 and protrudes from the body of the push button 30 towards the bottom wall 21 of the case 20.
  • the body of the push button 30 and the guide pin 33 form a single piece.
  • the aforesaid end portion 34 of the guide pin 33 has a cross-shaped cross-section.
  • cross-shaped cross-section it is meant a section on a plane that is perpendicular to the sliding axis Z-Z.
  • the aforesaid cross-shaped cross-section includes a circular central part from which four arms originate forming a Greek cross.
  • the guide pin 33 does not interfere with the lateral walls 20a, 20b, 20c, 20d of the case 20 during the sliding movements of the push button 30 with respect to the case 20.
  • the guide pin 33 is spaced apart from the lateral walls 20a, 20b, 20c, 20d of the case 20 so as to avoid having friction surfaces among the lateral walls of the case 20 and the guide pin 33.
  • the guide seat 23 includes four lateral walls 24 parallel in twos.
  • the lateral walls 24 of the guide seat 23 are separated from one another and joined to the bottom wall 21 of the case 20.
  • the guide seat 33 may be a continuous collar, having a quadrangular or circular section.
  • the lateral walls 24 are integrated in the bottom walls 21 of the case 20, protruding from it towards the push button 30.
  • the push button operated switch 10 includes at least one elastic element 40 adapted to exert a pushing force on the push button 30 in order to bring back or keep the push button 30 in the backward position in absence of external forces.
  • the switch 10 includes two elastic elements 40 having the form of two coil springs 40.
  • the switch 10 also includes a diaphragm 41 housed inside the case 20 and the elastic elements 40 are operatively inserted between the diaphragm 41 and the body of the push button 30, each having for example an end portion inserted in a correspondent recessed seat 39 provided in the body of the push button 30 ( Figure 6 ) . Also in the diaphragm 41 recessed seats having the same function may be provided.
  • the push button operated switch 10 includes a first stopping system including contact surfaces 251, 351 of the lateral walls of the case 20 and of the lateral walls of the push button 30 respectively, which are abutting to each other when the push button 30 is in the backward position.
  • the first stopping system includes alignment elements 250, 350 engaging with each other starting from a given point on during the sliding movement of the push button 30 from the forward position towards the backward position before reaching the backward position.
  • alignment elements 250, 350 allow to progressively align the push button 30 with respect to a reference plane R_P ( Figure 11 ) that is perpendicular to the sliding axis Z-Z.
  • the aforesaid alignment elements 250, 350 include at least a variable cross-section guide 250, and a corresponding variable cross-section slider 350 adapted to be inserted inside the variable cross-section guide 250, starting from a given point on during the motion of the push button 30 before reaching the backward position and up until reaching it.
  • the variable cross-section guide 250 is a tapered guide, having a decreasing cross-section in the direction towards the reference plane R_P.
  • the variable cross-section slider 350 is wedge-shaped.
  • the contact surfaces 251, 351 are surfaces that, in the backward position of the push button 30, lie on a plane I_P inclined with respect to the reference plane R_P.
  • the switch 10 includes complementary snap-fit coupling elements 25, 35 provided on the lateral walls of the case 20 and on the lateral walls of the body of the push button 30.
  • the aforesaid snap-fit coupling elements 25 are shaped in order to ease a forced insertion of the body of the push button 30 through the open side 21' of the case 20 in the assembling phase of the push button-case assembly and, once they pass a snapping position, to make an interlocking coupling between the push button 30 and the case 20, based on which the push button 30 is slidingly constrained to the case 20.
  • the snap-fit coupling elements 25, 35 include four snap-fit coupling teeth 25 on the lateral walls of the case 20 and four complementary snap-fit coupling teeth 35 arranged on the lateral walls of the body of the push button 30.
  • the snap-fit coupling teeth 25, 35 are arranged at the corners of a rectangul or square lying on a plane that is perpendicular to the sliding axis Z-Z.
  • the above described snap-fit coupling elements 25, 35 carry the above described alignment elements 250, 350 and preferably the above described contact surfaces 251, 351 too.
  • the push button operated switch 10 in order to stop the push button 30 in the forward position, includes a second stopping system including contact elements 26, 36 respectively provided on the lateral walls of the case 20 and on the lateral walls of the body of the push button 30.
  • the aforesaid contact elements 26, 36 include two small blocks 36 protruding from opposite walls 30b, 30d of the push button body 30 and stopping seats 26 provided on two opposite lateral walls 20b, 20d of the case 20.
  • the push button operated switch 10 includes a supporting fulcrum 50 housed inside the case 20.
  • a supporting fulcrum 50 serves as a supporting means for a mobile electrically conductive switching member, being in particular rotatable, carrying at least a mobile electrical contact element.
  • the aforesaid mobile electrically conductive switching member will be called in the present description rotatable contact holder support.
  • the supporting fulcrum 50 is for example made of metal sheet folded and punched.
  • the case 20 in order to guarantee a stable fixing of the supporting fulcrum 50 to the case 20, the case 20 includes a housing seat 27 of the supporting fulcrum 50 and the push button operated switch 10 includes an snap-fit coupling system adapted to fix the supporting fulcrum 50 to the case 20 in the housing seat 27.
  • the housing seat 27 is arranged inside the case 20 on the bottom wall 21 and the snap-fit coupling system comprises at least a coupling elastic tooth 28 adapted to hook the supporting fulcrum 50 to the bottom wall 21 of the case 20.
  • the aforesaid coupling elastic tooth 28 is integrated in the bottom wall 21 of the case 20 and forms a single piece with the latter.
  • the snap-fit coupling system includes a plurality of coupling elastic teeth 28, in particular three coupling elastic teeth 28.
  • the bottom wall 21 of the case 20 presents a pass-through opening 28'. Thereby, it is usefully avoided having to mould in the bottom wall 21 of the case 20 undercut opposite surfaces.
  • the coupling elastic tooth 28 has a free end portion and an opposite end constrained to the bottom wall 21 of the case 20 and the free end portion is such that it engages with a peripheral portion of the supporting fulcrum 50.
  • At least two snap fit coupling teeth 28 are provided that are arranged at opposite sides with respect to the supporting fulcrum 50.
  • the housing seat 27 of the supporting fulcrum 50 is a recessed seat implemented in the bottom wall 21 of the case 20.
  • the fulcrum 50 includes a support and contact portion 51 that is shaped so as to form a groove, for example having a V-shaped cross section, housed inside the recessed housing seat 27.
  • the supporting fulcrum 50 also includes a connecting portion 52, being part of a connecting terminal 50 of the switch 10.
  • the connecting terminal C1 includes a screw 54 and a clamping plate 55, and the screw 54 crosses the connecting portion 53 of the supporting fulcrum 50 to engage with the clamping plate 55.
  • the supporting fulcrum 50 includes an intermediate portion 52 forming an inclined connection plane between the support and contact portion 51 and the connecting portion 53.
  • the switch 10 also includes an anchoring system 59, 29 of the supporting fulcrum 50 to the case 20, in particular to the bottom wall 21 of the case 20.
  • the anchoring system 59, 29 includes a folded little wing 59 integrated in the supporting fulcrum 50 and an anchoring seat 29 (visible in Figure 4 ) arranged inside the bottom wall 21 of the case 20 housing the folded little wing 59. This allows to stabilise the supporting fulcrum 50 position also with respect to the external stresses that affect for example the supporting fulcrum 50 during the wiring operations of the switch 10, for example caused by the clamping of the connecting terminal C1.
  • the switch 10 is a generic push button operated switch.
  • the switch 10 is a push button operated switch with a rocking mechanism.
  • An embodiment of a push button operated switch with rocking mechanism is for example described in the European patent EP1866944 .
  • push button operated switch with rocking mechanism it is to be intended in general a switch operated by a sliding push button including a rocking element that controls the switching, hereinafter called, for ease of explanation, rocking control member.
  • the push button 30 includes a pressure transmitting member 60 rotatably constrained to the body of the push button 30.
  • the pressure transmitting member 60 is adapted to rotate into two opposed directions starting from a rest position (or central position) and the push button 30 includes at least an elastic element 61 adapted to bring the pressure transmitting member 60 back to the angular rest position after one rotation.
  • the pressure transmitting member 60 is adapted to rotate around the rotation axis A1-A1 (that will be called third rotation axis).
  • the aforesaid elastic element is, or includes, a wire spring 61 and preferably a rectilinear wire spring.
  • the aforesaid spring 61 is, for example, a wire spring made of spring steel. It has been observed that a wire spring 61 with reduced section, for example with a diameter included between 0,25 mm and 0,75 mm and for example equal to 0,5 mm, is able to bring the pressure transmitting member 60 back to the angular rest position and is able to resist to the stresses generated when the push button 30 is manually operated.
  • the aforesaid wire spring 61 has two opposite end portions 62 constrained to the push button 30 and a central portion 63 adapted to exert an elastic force on the pressure transmitting member 60.
  • the pressure transmitting member 60 includes a central portion 600 and two appendices 601 and 602 originating from the central portion 600.
  • the central portion 600 includes a channel 630, as for example a recess or hole, crossed by the central portion 63 of the wire spring 61.
  • the body of the push button 30 includes a pass-through opening 360, crossed by the pressure transmitting member 60, thereby the wire spring 61 is arranged on one side of the pass-through opening 360 together with at least one part of the central portion 600 of the pressure transmitting member 60, while the remaining part of the pressure transmitting member 60 is arranged on the other side of said pass-through opening 360.
  • the pressure transmitting member 60 includes two opposite hinge pins 610 that originate from the central portion 600 of the aforesaid member.
  • the two hinge pins 610 are cylindrical pins.
  • Such hinge pins 610 are oriented along the rotation axis A1-A1 of the pressure transmitting member 60.
  • the latter in order to simplify the assembly of the push button 30, includes two semicircular recesses (visible in Figure 6 ), or generally having the shape of an arc of the circle, aligned along the rotation axis of the pressure transmitting member 60 each of which is adapted to partially receive a respective hinge pin 610.
  • the wire spring 61 apart from serving as elastic reutrn making the transmitting member 60 return to its rest position, also serves as fixing element of the member 60 to the push button 30.
  • the push button 30 includes a fixing seat 361 of the wire spring 61 made in the thickness of the bottom wall 31 of the push button 30 and that in the embodiment is placed on top of the pass-through opening 360 of the push button 30.
  • such fixing seat 361 includes two grooves 362 aligned to each other along the direction of prevalent longitudinal extension of the wire spring 61 and are crossed by the end portions 62 of the wire spring 61.
  • the end portions 62 of the wire spring 61 protrude beyond such grooves 362 from opposite sides with respect to the central portion 63 of the wire spring 61.
  • the fixing seat 361 of the wire spring 61 includes stopping elements 365 adapted to limit or prevent an undesired translation of the wire spring 31 with respect to the push button 30. Such translation might in fact determine and undesired detachment of the wire spring 61 from the push button 30 and, thus, in the embodiment also the detachment of the pressure transmitting member 60.
  • the aforesaid pressure transmitting member 60 is such that it contacts, from a certain point on during the sliding of the push button 30 from the backward position to the forward position, a switching rocking control member 70, e.g. a bistable member, included in the push button operated switch 10 in case said switch 10 is a push button switch with rocking operating mechanism. After such contact, the pressure transmitting member 60 starts rotating with respect to the rest position, and during a further advancement of the push button 30 it is such that it determines a rotation of the rocking control member 70 starting from a first operative position until it reaches a second operative position.
  • a switching rocking control member 70 e.g. a bistable member
  • the rocking control member 70 remains in the second operative position, at the moment of a further pressure of the push button 30 through a sequence of movements similar to the above described one, it will be able to return in the first operative position and remain there when the push button 30 is released and until a later pressure of the push button 30.
  • the push button operated switch 10) includes at least a fixed electrical contact element 92, 92' (hereinafter also called fixed contact element) and at least a mobile element of mobile contact 82, 82' (hereinafter also called mobile contact element) and the rocking control member 70, by moving as a result of the pressure transmitted by the pressure transmitting member 60, determines a rotation of the rotatable contact holder support 81 around a rotation axis A3-A3 (hereinafter also called a first rotation axis) that, in its turn, rotates the mobile electrical contact element 82 between a first and a second operative position, being angularly spaced from one another.
  • the switch 10 includes two opposite mobile electrical contact elements 82,82' and two fixed electrical contact elements 92,92', being spaced apart and each other fronted.
  • the switch 10 is thus a two-way diverter, whereby in one of the aforesaid operative positions the mobile contact element 82 is in contact with a fixed contact element 92 and the mobile contact element 82' is separated from the other fixed contact element 92' while in the other operative position the mobile contact element 82 is separated from the fixed contact element 92 and the mobile contact element 82' is in contact with the other fixed contact element 92'.
  • the switch 10 includes two fixed contact holder supports 91,91' to which the fixed contact elements 92,92' are respectively fixed, e.g. welded.
  • the fixed contact holder supports 91,91' are made of electrically conductive material, e.g. copper, and each one includes a connecting portion 93,93'.
  • Each connecting portion 93, 93' is for example part of a corresponding electrical connecting terminal C2, C3 of the switch 10.
  • Each connecting terminal C2, C3 include a screw 94, 94' and a clamping plate 95, 95' and each screw 94, 94' crosses the respective connecting portion 93, 93' for engaging with an associated clamping plate 95, 95'.
  • the mobile electric contact elements 82, 82' are for example two opposite electrically conductive pads, e.g. made of sintered silver, fixed, e.g. welded, at the opposite sides of an end portion of a mobile contact element 81, also made of electrically conductive material, e.g. copper. It is thus clear that in this embodiment the mobile electrical contact elements 82, 82' are electrically connected between them.
  • the opposite end portion of the mobile contact support 81 lies on the supporting fulcrum 50 and in particular on the portion and support and contact 51 of the supporting fulcrum 50.
  • the mobile contact holder support 81 rotates around a first rotation axis A3-A3, in the example defined by the supporting fulcrum 50, in order to rotate the mobile electrical contact element 82,82' between the first and the second operative portion and vice versa.
  • the mobile contact holder support 81 is an L-shaped plate having a larger base 810 lying on the supporting fulcrum 50 and a more narrow arm 811 of the base 810 that protrudes from the base 810 and on whose end portion opposite to the base 810 the mobile electrical contact elements 82,82' are fixed.
  • the rocking control member 70 includes a body 75, preferably made of electrically insulating material, e.g. plastic, rotatable with respect to the case 20 to rotate around a rotation axis A2-A2 (herein called second rotation axis too), parallel to a first rotation axis A3-A3, in order to rotate the rotatable contact holder support 81.
  • a rotation axis A2-A2 (herein called second rotation axis too), parallel to a first rotation axis A3-A3, in order to rotate the rotatable contact holder support 81.
  • the second rotation axis A2-A2 is parallel both to the third rotation axis A1-A1 and to the first rotation axis A3-A3.
  • the body 75 of the rocking control member 70 is rotatably hinged to the case 20.
  • the body 75 of the rocking control member 70 is shaped in such a way that the rotatable contact holder support 81 in the rotation around the first rotation axis A3-A3 can cross the second rotation axis A2-A2, that is the rotation axis of the body 75 of the rocking control member 70.
  • the body 75 of the rocking control member 70 includes a contact portion 72 having two shaped surfaces 701, 702 intended to be alternatively contacted and pushed by the pressure transmitting member 60, and in particular by the two appendices 601,602.
  • the two shaped surfaces 701, 702 are two stepped surfaces.
  • the body 75 of the rocking control member 70 includes a bridge portion 71 bypassing an operative space 710 in which the rotatable contact holder support 81, or an end portion thereof, as for example an end portion of the arm 811 is free to rotate.
  • the bridge portion 71 includes at least a bended bridge arm 711, 712, 713, preferably two bended bridge arms 711, 713 originating from two different points of the body 75 and joining in the same point.
  • the bridge portion 71 includes three bended bridge arms 711, 712, 713 originating from three different points of the body 75 and joining in the same point to form a cage structure that defines the operative area 710 within which the rotatable contact holder support 81, or an end portion thereof, as for example an end portion of the arm 811, is free to rotate.
  • the bridge portion 71 may include a continuous bridge wall provided with a recess or a pocket within which the rotatable contact holder support 81, or an end portion thereof, is free to rotate.
  • the bridge portion 71 also bypasses a space occupied by the fixed contact holder support 91, 91', by the fixed electrical contact element 92, 92' and by the mobile electrical contact element 82, 82'. In such a way the bridge portion 71 bypasses a space region of the switch 10 wherein the joining and separation between the mobile electrical contact element 82, 82' and the fixed electrical contact element 92, 92' occurs.
  • the switching control member 70 includes two opposite coupling elements that allow the rotatably coupling of the control member 70 with two opposite lateral walls of the case 20.
  • the aforesaid coupling elements include two opposite cylindrical shaped pins 76 protruding from the body 75 along the rotation axis A2-A2 in opposite directions.
  • one of the aforesaid pins 76 protrudes from the contact portion 72 and the other of the said pins protrudes from the bridge portion 71.
  • such pins 76 are inserted in corresponding pass-through holes or recesses 276 defined in two opposite lateral walls of the case 20.
  • the body 75 of the rocking control member 70 includes a portion 73 containing an internally hollow seat adapted to receive an elastic element, e.g. a coil spring 77, operatively inserted between the rocking control member 70 and the mobile contact holder support 81.
  • an elastic element e.g. a coil spring 77
  • a wall 79 with a recess (not visible in the drawings because it points the bottom wall 21 of the case 20) adapted to receive an end of an elastic element (as for example a coil spring) adapted to make the rocking control member 70 a monostable member.
  • the proposed push button operated switch 10 allows to fully achieve the planned scopes in terms of overcoming the drawbacks of the prior art.
  • experimental evidence has demonstrated that, thanks to the provision of a system of spatially distributed guides including first guide elements 22, 32 operatively interposed between the lateral walls of the push button 30 and the lateral walls of the case 20 and second guide elements 23, 24, 33, 24 spaced apart from the first guide elements 22, 32 and arranged with respect to the first guide elements 22, 32 at a lower distance from the bottom wall 21, it is possible to significantly reduce the friction surfaces between the push button 30 and the case 20, limit the vulnerability of the switch 10 with respect to dust or sand insertion and keep contained the axial encumbrance of the switch.

Landscapes

  • Push-Button Switches (AREA)

Claims (16)

  1. Druckknopfbetätigter Schalter (10), der Folgendes umfasst:
    - ein Gehäuse (20) aus elektrisch isolierendem Material aufweisend eine Bodenwand (21), mit der Bodenwand (21) verbundenen Seitenwände (20a, 20b, 20c, 20d) und eine der Bodenwand (21) gegenüberliegende offene Seite (21');
    - einen Druckknopf (30), der betätigt werden kann, um ein elektrisches Schalten des Schalters (10) zu befehlen, und der einen Körper aufweist, der mit Seitenwänden (30a, 30b, 30c, 30d), die die offene Seite (21') kreuzen, versehen ist, wobei der Druckknopf (10) in Bezug auf das Gehäuse (20) entlang einer Gleitachse (Z-Z) zwischen einer Vorwärtsposition und einer Rückwärtsposition gleiten kann;
    - ein System von räumlich verteilten Führungen, die dazu angepasst sind, das Gleiten des Druckknopfs (30) in Bezug auf das Gehäuse (20) entlang der Gleitachse (Z-Z) zu führen, wobei das System von räumlich verteilten Führungen Folgendes umfasst:
    - erste Führungselemente (22, 32), die zwischen den Seitenwänden des Druckknopfes (30) und den Seitenwänden des Gehäuses (20) betriebsmäßig angeordnet sind;
    - zweite Führungselemente (23, 24, 33, 34), die in Bezug auf die ersten Führungselemente (22, 32) beabstandet sind,
    dadurch gekennzeichnet, dass die zweiten Führungselemente (23, 24, 33, 34) in Bezug auf die ersten Führungselemente (22, 32) in einem geringeren Abstand von der Bodenwand (21) angeordnet sind.
  2. Druckknopfbetätigter Schalter (10) nach Anspruch 1, wobei die ersten Führungselemente (22, 32) eine erste Mehrzahl von Fortsätzen (22) umfassen, die von den Seitenwänden des Gehäuses (20) zu den Seitenwänden des Druckknopfs (30) vorstehen, und eine zweite Mehrzahl von Fortsätzen (32), die von den Seitenwänden des Druckknopfs (30) zu den Seitenwänden des Gehäuses (20) vorstehen, und wobei jedes dazu angepasst ist, einen jeweiligen Fortsatz der ersten Mehrzahl zu berühren, um darauf zu gleiten, wenn der Druckknopf (30) in Bezug auf das Gehäuse (20) gleitet.
  3. Druckknopfbetätigter Schalter (10) nach Anspruch 2, wobei die erste Mehrzahl von Fortsätzen und die zweite Mehrzahl von Fortsätzen es ermöglichen, dass die Seitenwände des Druckknopfs (30) von den Seitenwänden des Gehäuses (20) beabstandet sind, wenn der Druckknopf (30) in Bezug auf das Gehäuse (20) gleitet.
  4. Druckknopfbetätigter Schalter (10) nach Anspruch 3, wobei es sich bei den Fortsätzen um lineare Fortsätze handelt.
  5. Druckknopfbetätigter Schalter (10) nach einem der Ansprüche 2 bis 4, wobei die Seitenwände des Körpers des Druckknopfs (30) paarweise parallel sind und Kanten (32') definieren, von denen jede durch ein Paar benachbarter Seitenwände definiert ist, und wobei jeder Fortsatz (32) der zweiten Mehrzahl von Fortsätzen an einer jeweiligen Kante (32') angeordnet ist.
  6. Druckknopfbetätigter Schalter (10) nach Anspruch 5, wobei die Kanten (32') abgeschrägt sind.
  7. Druckknopfbetätigter Schalter (10) nach einem der vorhergehenden Ansprüche, wobei die zweiten Führungselemente (23, 24, 33, 34) in Bezug auf die ersten Führungselemente (22, 32) dezentriert sind.
  8. Druckknopfbetätigter Schalter (10) nach einem der vorhergehenden Ansprüche, wobei die zweiten Führungselemente (23, 24, 33, 34) einen Führungssitz (23) und einen Führungsstift (33), dessen einer Endabschnitt (34) in dem Führungssitz (23) gleiten kann, umfassen.
  9. Druckknopfbetätigter Schalter (10) nach Anspruch 8, wobei der Führungsstift (33) sich von dem Körper des Druckknopfs (30) zu der Bodenwand (21) erstreckt, und wobei der Führungssitz (23) an der Bodenwand (21) befestigt ist.
  10. Druckknopfbetätigter Schalter (10) nach Anspruch 8 oder 9, wobei der Endabschnitt (34) des Führungsstiftes (33) einen kreuzförmigen Querschnitt aufweist.
  11. Druckknopfbetätigter Schalter (10) nach einem der Ansprüche 8 bis 10, wobei der Führungsstift (33) während der Gleitbewegungen des Druckknopfes (30) in Bezug auf das Gehäuse (20) die Seitenwände des Gehäuses (20) nicht behindert.
  12. Druckknopfbetätigter Schalter (10) nach einem der Ansprüche 8 bis 11, wobei der Führungsstift (33) in den Körper des Druckknopfs (30) integriert ist.
  13. Druckknopfbetätigter Schalter (10) nach einem der Ansprüche 8 bis 12, wobei der Führungssitz (23) vier Seitenwände (24) aufweist, die paarweise parallel sind.
  14. Druckknopfbetätigter Schalter (10) nach Anspruch 13, wobei die Seitenwände des Führungssitzes (23) voneinander getrennt sind.
  15. Druckknopfbetätigter Schalter (10) nach einem der vorhergehenden Ansprüche, wobei es sich bei dem Schalter um einen druckknopfbetätigten Schalter handelt, der ein Wippsteuerelement (70) aufweist.
  16. Druckknopfbetätigter Schalter (10) nach Anspruch 15, umfassend ein Druckübertragungselement (60), das drehbar an dem Druckknopf (30) festgehalten ist, und wobei das Steuerelement (70) drehbar an zwei gegenüberliegenden Seitenwänden des Gehäuses (20) festgehalten ist.
EP16834190.7A 2016-02-15 2016-12-21 Druckknopfbetätigter schalter mit einklemmschutzführungssystem Active EP3417469B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA44214A MA44214B1 (fr) 2016-02-15 2016-12-21 Interrupteur à bouton-poussoir avec système de guidage anti-brouillage
PL16834190T PL3417469T3 (pl) 2016-02-15 2016-12-21 Przełącznik obsługiwany przyciskiem z systemem prowadzenia zabezpieczającym przed zakleszczeniem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB2016A000755A ITUB20160755A1 (it) 2016-02-15 2016-02-15 Interruttore azionato a pulsante con sistema di guida anti-inceppamento
PCT/IB2016/057859 WO2017141089A1 (en) 2016-02-15 2016-12-21 A push button operated switch with anti-jamming guiding system

Publications (2)

Publication Number Publication Date
EP3417469A1 EP3417469A1 (de) 2018-12-26
EP3417469B1 true EP3417469B1 (de) 2019-07-31

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AU (1) AU2016392768B2 (de)
CL (1) CL2018002060A1 (de)
CO (1) CO2018008158A2 (de)
CR (1) CR20180441A (de)
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HU (1) HUE045981T2 (de)
IT (1) ITUB20160755A1 (de)
MA (1) MA44214B1 (de)
MX (1) MX2018009322A (de)
PL (1) PL3417469T3 (de)
PT (1) PT3417469T (de)
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IT201800005622A1 (it) * 2018-05-23 2019-11-23 Interruttore commutatore
IT201800006224A1 (it) * 2018-06-12 2019-12-12 Interruttore a quattro vie
IT201900025693A1 (it) 2019-12-30 2021-06-30 Bticino Spa Placca di copertura per impianti elettrici e/o domotici
IT201900025705A1 (it) 2019-12-30 2021-06-30 Bticino Spa Modulo di connessione e gruppo modulare per impianti elettrici e/o domotici
IT201900025717A1 (it) 2019-12-30 2021-06-30 Bticino Spa Modulo di interfaccia utente e gruppo modulare per impianti elettrici e/o domotici
IT201900025684A1 (it) 2019-12-30 2021-06-30 Bticino Spa Dispositivo elettronico modulare per impianti elettrici e/o domotici

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JPH1012083A (ja) * 1996-06-25 1998-01-16 Nec Shizuoka Ltd 押しボタン
DE19757928C2 (de) * 1997-12-24 1999-10-28 Hella Kg Hueck & Co Bedieneinheit für eine Fahrzeugkomponente, insbesondere für eine Klimaanlage
JP5225179B2 (ja) * 2009-04-06 2013-07-03 東京パーツ工業株式会社 プッシュスイッチ
CN103545134B (zh) * 2012-07-09 2016-02-24 纬创资通股份有限公司 易于拆装的按键机构及电子装置
ITTO20120749A1 (it) * 2012-08-30 2014-03-01 Bitron Spa Dispositivo di comando per interruttori
CN203746710U (zh) * 2014-02-10 2014-07-30 温州市联峰电器有限公司 一种按钮开关基座

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RU2018126801A (ru) 2020-01-20
PT3417469T (pt) 2019-10-24
EP3417469A1 (de) 2018-12-26
AU2016392768B2 (en) 2020-12-10
BR112018015572A2 (pt) 2018-12-26
CO2018008158A2 (es) 2018-08-21
HUE045981T2 (hu) 2020-01-28
RU2713415C2 (ru) 2020-02-05
PL3417469T3 (pl) 2020-04-30
MA44214B1 (fr) 2019-09-30
MX2018009322A (es) 2018-11-09
CR20180441A (es) 2019-03-12
AU2016392768A1 (en) 2018-08-23
CN108604509B (zh) 2019-08-02
WO2017141089A1 (en) 2017-08-24
RU2018126801A3 (de) 2020-01-20
CN108604509A (zh) 2018-09-28
CL2018002060A1 (es) 2018-09-07
MA44214A (fr) 2019-07-31
ITUB20160755A1 (it) 2017-08-15
ES2753633T3 (es) 2020-04-13

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