EP2996129B1 - Apparatus for detecting a manipulation of an object - Google Patents

Apparatus for detecting a manipulation of an object Download PDF

Info

Publication number
EP2996129B1
EP2996129B1 EP14184343.3A EP14184343A EP2996129B1 EP 2996129 B1 EP2996129 B1 EP 2996129B1 EP 14184343 A EP14184343 A EP 14184343A EP 2996129 B1 EP2996129 B1 EP 2996129B1
Authority
EP
European Patent Office
Prior art keywords
snap
actuating
manipulation
switch
housing
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
EP14184343.3A
Other languages
German (de)
French (fr)
Other versions
EP2996129A1 (en
Inventor
Peter Golüke
Michael Nolte
Matthias Kulik
Alexander Nentwig
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.)
Wincor Nixdorf International GmbH
Original Assignee
Wincor Nixdorf International GmbH
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 Wincor Nixdorf International GmbH filed Critical Wincor Nixdorf International GmbH
Priority to EP14184343.3A priority Critical patent/EP2996129B1/en
Priority to BR112017004753-5A priority patent/BR112017004753B1/en
Priority to US15/510,505 priority patent/US10229798B2/en
Priority to PCT/EP2015/068915 priority patent/WO2016037808A1/en
Publication of EP2996129A1 publication Critical patent/EP2996129A1/en
Application granted granted Critical
Publication of EP2996129B1 publication Critical patent/EP2996129B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H01H13/12—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
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • 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
    • H01H13/20—Driving mechanisms
    • H01H13/22—Driving mechanisms acting with snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2205/00—Movable contacts
    • H01H2205/032—Several contacts formed in one plate or layer
    • H01H2205/034—Several contacts formed in one plate or layer with snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/034—Separate snap action
    • H01H2215/036—Metallic disc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/05—Force concentrator; Actuating dimple
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/03—Hardness

Definitions

  • the invention relates to a device for detecting a manipulation of an object, in particular on an object with a housing.
  • Such a device may, for example, be a device for detecting a manipulation on a mobile payment terminal.
  • the device may also be a device for detecting a manipulation of an alarm system, a smoke detector or another object to be protected from unauthorized interference.
  • Such a device comprises an actuating switch and an actuating element which are arranged on an object such that in the case of a mechanical manipulation of the object, the actuating element acts on the confirming switch and transfers it from a first switch position into a two switch position.
  • an electrical signal is generated, which can be processed by a detection electronics.
  • the operating switch has a snap-action disc, as used for example in key switches in keyboards application.
  • the snap disc has a stable state corresponding to a first position and a metastable state corresponding to a second position.
  • the actuator has a body and an actuating dome protruding from the body for engaging the snap-action disc to switch from a first position to a second position upon manipulation of the object.
  • Such an actuating mechanism with an actuating element and an actuating switch with a snap-action disc is known in the art for key switches, for example in keyboards.
  • the DE 41 39 554 A1 discloses a push-button switch, wherein on a push-button a Niederdschreibnoppen is formed, which acts on a snap-action disc and is preferably formed in elastic. By means of Niederdschreibnoppens manufacturing tolerances can be compensated.
  • a mechanical keyboard is known in which a switch plate is arranged on a silicone mat, which rests on a snap-action disc.
  • a technical challenge in devices for detecting a manipulation of an object with such an actuating mechanism is given by the fact that manufacturing variations in the manufacture and / or assembly of the actuating element and the snap disc can lead to an unfavorable switching behavior.
  • the tip of the actuating dome is arranged with a slight lateral offset to the center of the snap-action disc, the switching operation between the first and the second position of the snap-action disc takes place at a triggering force (exerted on the actuating element), which differs from that of FIG Release force with ideally centered arrangement of actuation dome and snap disc distinguishes.
  • Manufacturing fluctuations in the formation of the actuating dome can also lead to unwanted fluctuations in the switching behavior of different, nominally identical devices.
  • an angle deviation from an ideal triggering direction (usually perpendicular to the body of the actuating element and at the same time to a body of the actuating switch) can also cause an unfavorable deviating switching behavior or malfunction in the actuation of the actuating element.
  • a further challenge is the possible occurrence of vibrations of the object, which are not generated by a manipulation of the object, but for example by falling of the object or transport-related shocks or vibrations.
  • triggering of the actuating mechanism of the device may occur for detecting a manipulation of an object and thus a misdiagnosis of a supposed manipulation.
  • actuating dome which has a first rigidity
  • contact element for acting on the snap disk, wherein the contact element has a relation to the first stiffness greater, second rigidity.
  • the present invention is based on the experimentally based finding that in the design of the actuating element, the combination of an actuating dome with a first stiffness and a contact element with a relation to the first stiffness greater, second stiffness to a good Switching behavior with regard to the criteria of reliability, fault tolerance and accuracy of the device leads.
  • the elastic deformability of a Bettechnik Trentsdoms with a first, lower rigidity ensures that when switching the snap disc a possible, due to manufacturing variations lateral offset between the Bettechnikistsdom and the center of the snap disc or a possible angular deviation can be compensated by an ideal release direction during actuation .
  • the elastic deformability of the actuating dome with a first, lower rigidity makes it possible to compensate for mass forces which can occur when the object is jarred.
  • a misdiagnosis of a supposed manipulation for example, transport-related shocks or vibrations avoided.
  • the abutment element with its second rigidity, which is greater than the first rigidity, during the action on the snap-action disc produces a well-defined direct contact with the snap-action disc, which can be characterized in particular by a small contact surface.
  • the influence of the (possibly also production-related fluctuations underlying) actuator is kept as low as possible to the ideal set solely by the snap-action switching point.
  • a good reproducibility of the desired switching point is guaranteed.
  • the actuating dome has a rotationally symmetrical basic shape, so that it can be easily bent in any direction perpendicular to its main axis to compensate for angular deviations when acting on the snap-action disc.
  • He can, for example, made of silicone, so that it is elastically deformable.
  • the contact element is preferably made of metal, in particular steel. It may be spherical and arranged in a correspondingly shaped receiving opening at the top of the actuating dome. In this case, the contact surface with the snap disc is almost punctiform.
  • the snap disc has a stable state corresponding to its first position and a metastable state corresponding to the second position.
  • the abutment element of the device acts on the snap-action disc and holds it in the second, metastable position.
  • the device is preferably configured to detect a manipulation based on the snap of the snap disc in the first position.
  • the device for detecting a manipulation of an object may in an advantageous embodiment include an evaluation device which is designed to generate an electrical signal based on the position of the snap disc and / or a switching operation of the snap disc between the first position and the second position.
  • This evaluation device may for example be a printed circuit board on which the operating switch is arranged.
  • the electrical signal corresponds to the detection of a manipulation and can be processed by detection electronics in a variety of ways.
  • the actuating element can be arranged on a housing part and the actuating switch on another housing part of a housing.
  • the actuator can act in a normal use position of the device, which corresponds to a non-manipulated state of the article, acting on the snap-action disc and hold the snap-action disc in its metastable state.
  • the actuator in a manipulation in the form of disassembly of the housing, the actuator is removed from the snap-action disc, and the snap-action disc snaps into the stable state.
  • the first position of the snap-action disc in which it is in its stable state, can be placed in a normal operating position, ie. the non-manipulated state, correspond.
  • the Fig. 1 shows a schematic view of an arrangement 4 for detecting a manipulation of an object with a housing.
  • the item may be, for example, a mobile payment terminal.
  • the object may also be, for example, an alarm system, a smoke detector or another object to be protected against unauthorized interference with a housing.
  • the arrangement 4 comprises a housing 1 with at least a first housing part 10 and a second housing part 11.
  • the first housing part 10 may be, for example, a removable housing rear wall or a housing cover.
  • the second housing part 11 can, for example, a sensitive object, such as the control and storage electronics of a mobile bank terminal record and enclose this together with the first housing part 10 as a housing 1.
  • a device 2 for detecting a manipulation of an object is provided, which is electrically connected to a detection device 3 arranged in the second housing part 11 and in the case a disassembly of the first housing part 10 emits an electrical signal to the detection electronics 3.
  • the device 2 for detecting a manipulation on an object comprises an actuating element 21 arranged on a carrier 20, the carrier 20 being arranged together with the actuating element 21 on the first housing part 10, and an actuating switch 22 arranged on an evaluation device 23, wherein the evaluation device 23 is arranged together with the operation switch on the second housing part 11.
  • the evaluation device 23 may be, for example, a printed circuit board.
  • the actuating element 21 and the actuating switch 20 are arranged opposite one another such that the actuating element 21 in a normal use position of the device 2, in which the first housing part 10 is mounted on the second housing part 11, acts mechanically on the actuating switch 22 and keeps it biased in a first switch position ,
  • the normal use position of the device 2 for detecting a manipulation of an object is the position in which the device 2 is located, if the object has not been manipulated.
  • the actuator 21 Upon disassembly of the first housing part 10 from the second housing part 11, the actuator 21 is removed from the operation switch 22, and the operation switch 22 assumes a second switch position, which corresponds to its non-biased state.
  • the evaluation device 23, which may be, for example, a printed circuit board 23, on which the actuating switch 22 is arranged electrically connected, generates an electrical signal, which is transmitted to the detection electronics 3.
  • the detection electronics 3 may for example also be arranged directly on the printed circuit board 23.
  • the electrical signal can be processed by the detection electronics 3 in many ways.
  • the event of the occurrence of the electrical signal can be stored for later reading, so that it is possible to detect subsequent manipulation.
  • the electrical signal can also trigger an alarm immediately or, if the object is an electrical or electronic device, override certain functions of this device.
  • the in Fig. 1 4 arrangement provided an external interface 30 with the evaluation device 23 and / or the detection electronics 3, via which, for example by entering a password with a keyboard, the generation of the electrical signal out of force set or alternatively, the processing of the electrical signal can be changed or prevented.
  • Fig. 2A and Fig. 2B show a device 2 for detecting a manipulation of an object in a schematic view in cross section.
  • the operating switch 22 has a snap-action disc 220.
  • the snap-action disc 220 has a stable state of a first, in Fig. 2B shown position of the snap-action disc 220 corresponds, and a metastable state, the second, in Fig. 2A shown position of the snap-action disc 220 corresponds.
  • the actuator 21 has a body 210 and an actuation dome 211 projecting from the body towards the actuation switch 22 for acting on the snap-action disc 220 to switch from a first position to a second position upon manipulation of the object.
  • a contact element 213 for acting on the snap-action disc 220 which has a second, greater rigidity, is arranged on the actuation dome 211, which has a first rigidity.
  • an evaluation device 23 can be generated on the basis of the position of the snap disc 220 and / or a switching operation of the snap disc 220 between the first position and the second position, an electrical signal.
  • the Fig. 2A shows the device 2 for detecting a manipulation of an object in a position which is the normal use position of the device 2 in the in Fig. 1 shown arrangement 4 corresponds.
  • the snap-action disc 220 is biased in its second, metastable position by the action of the abutment element 213.
  • Fig. 2B shown position correspond to a normal use position.
  • the Fig. 3 shows in greater detail the body 210 of the actuating element 21 with the actuating dome 211 and the contact element 213 in an embodiment in which the actuating dome 211 has a rotationally symmetrical basic shape, namely a conical basic shape.
  • the contact element 213 is spherical in this advantageous embodiment and, as in the sectional view in FIG Fig. 4 clearly visible, arranged in a corresponding approximately hemispherical shaped receiving opening 212.
  • the difference according to the invention between the rigidity of the actuating dome 211 and the contact element 213 is realized in an advantageous embodiment in that the actuating dome 211 is made of silicone and the contact element 213 is a steel ball.
  • the actuation dome 211 from an elastic material such as silicone so that it can bend correspondingly when acting non-centered on the snap-action disc 220 and thus acting perpendicular to the curved surface of the snap-action disc 220 Force component is as large as possible.
  • a spherical contact element 220 made of a non-elastic, compared to the actuation dome 211 stiffer material such as steel here helps to reduce the dispersion of Umschnapp working, since it is not ideal even acting on the curved surface of the snap-action disc 220 a consistently small, in the case of the spherical shape even approximately punctiform, ensures contact surface. Thus, possible fluctuating influences on the snap-in forces, which depend on characteristics of the abutment element 220, are suppressed.
  • An elastic actuation dome 220 has the further advantage that to some extent (for example transport-related) vibrations of the housing can be cushioned, so that they do not lead to snapping the snap disc 220 and thus to a misdiagnosis in terms of a supposed manipulation.

Description

Die Erfindung betrifft eine Vorrichtung zum Erkennen einer Manipulation an einem Gegenstand, insbesondere an einem Gegenstand mit einem Gehäuse.The invention relates to a device for detecting a manipulation of an object, in particular on an object with a housing.

Bei einer derartigen Vorrichtung kann es sich beispielsweise um eine Vorrichtung zum Erkennen einer Manipulation an einem mobilen Bezahlterminal handeln. Bei der Vorrichtung kann es sich aber auch um eine Vorrichtung zum Erkennen einer Manipulation an einer Alarmanlage, an einen Rauchmelder oder an einem anderen vor unbefugten Eingriffen zu schützenden Gegenstand handeln.Such a device may, for example, be a device for detecting a manipulation on a mobile payment terminal. However, the device may also be a device for detecting a manipulation of an alarm system, a smoke detector or another object to be protected from unauthorized interference.

Eine solche Vorrichtung umfasst einen Betätigungsschalter und ein Betätigungselement, die derart an einem Gegenstand angeordnet sind, dass im Falle einer mechanischen Manipulation an dem Gegenstand das Betätigungselement auf den Bestätigungsschalter einwirkt und ihn von einer ersten Schalterstellung in eine zweie Schalterstellung überführt. In Verbindung mit einer elektrischen Auswerteeinrichtung wird dabei ein elektrisches Signal erzeugt, welches von einer Detektionselektronik verarbeitet werden kann.Such a device comprises an actuating switch and an actuating element which are arranged on an object such that in the case of a mechanical manipulation of the object, the actuating element acts on the confirming switch and transfers it from a first switch position into a two switch position. In connection with an electrical evaluation device, an electrical signal is generated, which can be processed by a detection electronics.

Zu diesem Zweck weist der Betätigungsschalter eine Schnappscheibe auf, wie sie beispielsweise bei Tastschaltern in Tastaturen Anwendung findet. Die Schnappscheibe hat einen stabilen Zustand, der einer ersten Stellung entspricht, und einen metastabilen Zustand, der einer zweiten Stellung entspricht. Das Betätigungselement hat einen Körper und einen von dem Körper vorstehenden Betätigungsdom zum Einwirken auf die Schnappscheibe, um diese bei einer Manipulation an dem Gegenstand von einer ersten Stellung in eine zweite Stellung zu schalten. Mittels einer Auswerteeinrichtung kann anhand der Stellung der Schnappscheibe und/oder eines Schaltvorgangs der Schnappscheibe zwischen der ersten Stellung und der zweiten Stellung ein elektrisches Signal erzeugt werden.For this purpose, the operating switch has a snap-action disc, as used for example in key switches in keyboards application. The snap disc has a stable state corresponding to a first position and a metastable state corresponding to a second position. The actuator has a body and an actuating dome protruding from the body for engaging the snap-action disc to switch from a first position to a second position upon manipulation of the object. By means of an evaluation device can be generated based on the position of the snap disk and / or a switching operation of the snap disk between the first position and the second position, an electrical signal.

Ein derartiger Betätigungsmechanismus mit einem Betätigungselement und einem Betätigungsschalter mit einer Schnappscheibe ist in der Technik bei Tastschaltern, beispielsweise in Tastaturen, bekannt.Such an actuating mechanism with an actuating element and an actuating switch with a snap-action disc is known in the art for key switches, for example in keyboards.

Die DE 41 39 554 A1 offenbart einen Tastschalter, bei dem an einer Tastkappe ein Niederdrücknoppen ausgebildet ist, der auf eine Schnappscheibe einwirkt und vorzugsweise in sich elastische ausgebildet ist. Mittels des Niederdrücknoppens können Fertigungstoleranzen ausgeglichen werden.The DE 41 39 554 A1 discloses a push-button switch, wherein on a push-button a Niederdrücknoppen is formed, which acts on a snap-action disc and is preferably formed in elastic. By means of Niederdrücknoppens manufacturing tolerances can be compensated.

Aus der DE 10 2010 021 696 A1 ist eine mechanische Tastatur bekannt, bei der an einer Silikonmatte ein Schaltstößel angeordnet ist, der auf einer Schnappscheibe aufliegt.From the DE 10 2010 021 696 A1 is a mechanical keyboard is known in which a switch plate is arranged on a silicone mat, which rests on a snap-action disc.

Bei einem aus der EP 0 538 199 A2 bekannten elektrischen Tastschalter ist an einer Tast- und Zentrierkappe eine Drücknoppe angeordnet, die eine Schnappscheibe schaltet.At one of the EP 0 538 199 A2 Known electrical push-button is arranged on a sensing and centering a pressure nub, which switches a snap-action disc.

Eine technische Herausforderung bei Vorrichtungen zum Erkennen einer Manipulation an einem Gegenstand mit einem derartigen Betätigungsmechanismus ist dadurch gegeben, dass Fertigungsschwankungen bei der Herstellung und/oder der Montage des Betätigungselements und der Schnappscheibe zu einem ungünstigen Schaltverhalten führen können. Wenn beispielsweise die Spitze des Betätigungsdoms mit einem leichten lateralen Versatz zur Mitte der Schnappscheibe angeordnet ist, erfolgt der Schaltvorgang zwischen der ersten und der zweiten Stellung der Schnappscheibe bei einer (auf das Betätigungselement ausgeübten) Auslösekraft, die sich von der Auslösekraft bei ideal zentrierter Anordnung von Betätigungsdom und Schnappscheibe unterscheidet.
Fertigungsschwankungen bei der Ausformung des Betätigungsdoms können ebenfalls zu ungewollten Schwankungen im Schaltverhalten unterschiedlicher, nominell baugleicher Vorrichtungen führen.A technical challenge in devices for detecting a manipulation of an object with such an actuating mechanism is given by the fact that manufacturing variations in the manufacture and / or assembly of the actuating element and the snap disc can lead to an unfavorable switching behavior. For example, if the tip of the actuating dome is arranged with a slight lateral offset to the center of the snap-action disc, the switching operation between the first and the second position of the snap-action disc takes place at a triggering force (exerted on the actuating element), which differs from that of FIG Release force with ideally centered arrangement of actuation dome and snap disc distinguishes.
Manufacturing fluctuations in the formation of the actuating dome can also lead to unwanted fluctuations in the switching behavior of different, nominally identical devices.

Weiterhin kann auch bei der Betätigung des Betätigungselements eine Winkelabweichung von einer idealen Auslöserichtung (in der Regel lotrecht zum Körper des Betätigungselements und zugleich zu einem Körper des Betätigungsschalters) ein ungünstig abweichendes Schaltverhalten oder eine Fehlfunktion verursachen.Furthermore, an angle deviation from an ideal triggering direction (usually perpendicular to the body of the actuating element and at the same time to a body of the actuating switch) can also cause an unfavorable deviating switching behavior or malfunction in the actuation of the actuating element.

Eine weitere Herausforderung besteht im möglichen Auftreten von Erschütterungen des Gegenstandes, die nicht durch eine Manipulation an dem Gegenstand, sondern beispielsweise durch Herunterfallen des Gegenstands oder transportbedingte Stöße oder Vibrationen erzeugt werden. In solchen Fällen kann es zum Auslösen des Betätigungsmechanismus der Vorrichtung zum Erkennen einer Manipulation an einem Gegenstand und somit zu einer Fehldiagnose einer vermeintlichen Manipulation kommen.A further challenge is the possible occurrence of vibrations of the object, which are not generated by a manipulation of the object, but for example by falling of the object or transport-related shocks or vibrations. In such cases triggering of the actuating mechanism of the device may occur for detecting a manipulation of an object and thus a misdiagnosis of a supposed manipulation.

Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung zum Erkennen einer Manipulation an einem Gegenstand zur Verfügung zu stellen, die eine zuverlässige, gegenüber Fertigungsschwankungen und Winkelabweichungen bei der Betätigung fehlertolerante Funktion sicherstellt.It is therefore an object of the present invention to provide a device for detecting a manipulation of an object which ensures a reliable, fault-tolerant function with regard to production fluctuations and angular deviations during the actuation.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a device having the features of claim 1. Embodiments of the invention are specified in the subclaims.

Demnach ist vorgesehen, an dem Betätigungsdom, der eine erste Steifigkeit aufweist, ein Anlageelement zum Einwirken auf die Schnappscheibe anzuordnen, wobei das Anlageelement eine gegenüber der ersten Steifigkeit größere, zweite Steifigkeit aufweist.Accordingly, it is provided to arrange on the actuating dome, which has a first rigidity, a contact element for acting on the snap disk, wherein the contact element has a relation to the first stiffness greater, second rigidity.

Die vorliegende Erfindung geht von der experimentell gestützten Erkenntnis aus, dass bei der Ausgestaltung des Betätigungselements die Kombination von einem Betätigungsdom mit einer ersten Steifigkeit und einem Anlageelement mit einer gegenüber der ersten Steifigkeit größeren, zweiten Steifigkeit zu einem guten Schaltverhalten mit Blick auf die Kriterien der Zuverlässigkeit, Fehlertoleranz und Genauigkeit der Vorrichtung führt.The present invention is based on the experimentally based finding that in the design of the actuating element, the combination of an actuating dome with a first stiffness and a contact element with a relation to the first stiffness greater, second stiffness to a good Switching behavior with regard to the criteria of reliability, fault tolerance and accuracy of the device leads.

Einerseits sorgt die elastische Verformbarkeit eines Betätigungsdoms mit einer ersten, geringeren Steifigkeit dafür, dass beim Schalten der Schnappscheibe ein möglicher, durch Fertigungsschwankungen bedingter lateraler Versatz zwischen dem Betätigungsdom und der Mitte der Schnappscheibe oder eine mögliche Winkelabweichung von einer idealen Auslöserichtung bei der Betätigung ausgeglichen werden können. Zudem ermöglicht die elastische Verformbarkeit des Betätigungsdoms mit einer ersten, geringeren Steifigkeit die Kompensation von Massenkräften, die bei Erschütterungen des Gegenstands auftreten können. Somit wird eine Fehldiagnose einer vermeintlichen Manipulation, beispielsweise bei transportbedingten Stößen oder Vibrationen, vermieden.On the one hand, the elastic deformability of a Betätigungsdoms with a first, lower rigidity ensures that when switching the snap disc a possible, due to manufacturing variations lateral offset between the Betätigungsdom and the center of the snap disc or a possible angular deviation can be compensated by an ideal release direction during actuation , In addition, the elastic deformability of the actuating dome with a first, lower rigidity makes it possible to compensate for mass forces which can occur when the object is jarred. Thus, a misdiagnosis of a supposed manipulation, for example, transport-related shocks or vibrations avoided.

Andererseits stellt das Anlageelement mit seiner gegenüber der ersten Steifigkeit größeren, zweiten Steifigkeit während des Einwirkens auf die Schnappscheibe einen wohldefinierten unmittelbaren Kontakt zur Schnappscheibe her, der insbesondere durch eine kleine Berührungsfläche gekennzeichnet sein kann. Dadurch wird der Einfluss des (möglicherweise ebenfalls fertigungsbedingten Schwankungen unterliegenden) Betätigungselements auf den idealerweise allein durch die Schnappscheibe vorgegebenen Schaltpunkt möglichst gering gehalten. Somit wird eine gute Reproduzierbarkeit des gewünschten Schaltpunktes gewährleistet.On the other hand, the abutment element, with its second rigidity, which is greater than the first rigidity, during the action on the snap-action disc produces a well-defined direct contact with the snap-action disc, which can be characterized in particular by a small contact surface. As a result, the influence of the (possibly also production-related fluctuations underlying) actuator is kept as low as possible to the ideal set solely by the snap-action switching point. Thus, a good reproducibility of the desired switching point is guaranteed.

In einer vorteilhaften Ausgestaltung weist der Betätigungsdom eine rotationssymmetrische Grundform auf, so dass er zum Ausgleichen von Winkelabweichungen beim Einwirken auf die Schnappscheibe in jede Richtung senkrecht zu seiner Hauptachse leicht verbogen werden kann. Dabei kann er z.B. aus Silikon gefertigt sein, so dass er elastisch verformbar ist.In an advantageous embodiment, the actuating dome has a rotationally symmetrical basic shape, so that it can be easily bent in any direction perpendicular to its main axis to compensate for angular deviations when acting on the snap-action disc. He can, for example, made of silicone, so that it is elastically deformable.

Das Anlageelement ist vorzugsweise aus Metall, insbesondere Stahl gefertigt. Dabei kann es kugelförmig ausgebildet und in einer entsprechend geformten Aufnahmeöffnung an der Spitze des Betätigungsdoms angeordnet sein. In diesem Fall ist die Berührungsfläche mit der Schnappscheibe nahezu punktförmig.The contact element is preferably made of metal, in particular steel. It may be spherical and arranged in a correspondingly shaped receiving opening at the top of the actuating dome. In this case, the contact surface with the snap disc is almost punctiform.

Vorzugsweise hat die Schnappscheibe einen stabilen Zustand, der ihrer ersten Stellung entspricht, und einen metastabilen Zustand, der der zweiten Stellung entspricht.Preferably, the snap disc has a stable state corresponding to its first position and a metastable state corresponding to the second position.

In einer Variante wirkt in einer Normalgebrauchsstellung der Vorrichtung zum Erkennen einer Manipulation an einem Gegenstand das Anlageelement der Vorrichtung auf die Schnappscheibe ein und hält sie in der zweiten, metastabilen Stellung.In a variant, in a normal use position of the device for detecting a manipulation of an object, the abutment element of the device acts on the snap-action disc and holds it in the second, metastable position.

In diesem Fall ist die Vorrichtung vorzugsweise ausgestaltet, anhand des Schnappens der Schnappscheibe in die erste Stellung eine Manipulation zu detektieren.In this case, the device is preferably configured to detect a manipulation based on the snap of the snap disc in the first position.

Die Vorrichtung zum Erkennen einer Manipulation an einem Gegenstand kann in einer vorteilhaften Ausgestaltung eine Auswerteeinrichtung umfassen, die ausgebildet ist, anhand der Stellung der Schnappscheibe und/oder eines Schaltvorgangs der Schnappscheibe zwischen der ersten Stellung und der zweiten Stellung ein elektrisches Signal zu erzeugen. Diese Auswerteeinrichtung kann beispielsweise eine Leiterplatte sein, auf der der Betätigungsschalter angeordnet ist. Das elektrische Signal entspricht der Detektion einer Manipulation und kann von einer Detektionselektronik auf vielfältige Weise verarbeitet werden.The device for detecting a manipulation of an object may in an advantageous embodiment include an evaluation device which is designed to generate an electrical signal based on the position of the snap disc and / or a switching operation of the snap disc between the first position and the second position. This evaluation device may for example be a printed circuit board on which the operating switch is arranged. The electrical signal corresponds to the detection of a manipulation and can be processed by detection electronics in a variety of ways.

In einer Weiterbildung können das Betätigungselement an einem Gehäuseteil und der Betätigungsschalter an einem anderen Gehäuseteil eines Gehäuses angeordnet sein.In a further development, the actuating element can be arranged on a housing part and the actuating switch on another housing part of a housing.

Das Betätigungselement kann dabei in einer Normalgebrauchsstellung der Vorrichtung, die einem nicht manipulierten Zustand des Gegenstands entspricht, auf die Schnappscheibe einwirken und die Schnappscheibe in ihrem metastabilen Zustand halten. In diesem Fall wird bei einer Manipulation in Form einer Demontage des Gehäuses das Betätigungselement von der Schnappscheibe entfernt, und die Schnappscheibe schnappt in den stabilen Zustand.The actuator can act in a normal use position of the device, which corresponds to a non-manipulated state of the article, acting on the snap-action disc and hold the snap-action disc in its metastable state. In this case, in a manipulation in the form of disassembly of the housing, the actuator is removed from the snap-action disc, and the snap-action disc snaps into the stable state.

Grundsätzlich kann aber die erste Stellung der Schnappscheibe, in der sie in ihrem stabilen Zustand ist, einer Normalgebrauchsstellung, d.h. dem nicht manipulierten Zustand, entsprechen.In principle, however, the first position of the snap-action disc, in which it is in its stable state, can be placed in a normal operating position, ie. the non-manipulated state, correspond.

Der der Erfindung zugrunde liegende Gedanke soll nachfolgend anhand der in den Figuren dargestellten Ausführungsbeispiele näher erläutert werden. Es zeigen:

Fig.1
eine schematische Ansicht einer Anordnung zum Erkennen einer Manipulation an einem Gegenstand mit einem Gehäuse;
Fig. 2A
eine Querschnittsansicht einer schematischen Darstellung einer Vorrichtung zum Erkennen einer Manipulation an einem Gegenstand mit einem Betätigungsschalter in einer ersten Schalterstellung;
Fig. 2B
die Vorrichtung der Fig. 2A in einer zweiten Schalterstellung;
Fig.3
eine Ansicht eines Betätigungselements, das einen Körper, einen Betätigungsdom und ein Anlageelement umfasst; und
Fig. 4
eine Schnittansicht des in Fig. 3 gezeigten Betätigungselements.
The idea underlying the invention will be explained in more detail with reference to the embodiments illustrated in the figures. Show it:
Fig.1
a schematic view of an arrangement for detecting a manipulation of an object with a housing;
Fig. 2A
a cross-sectional view of a schematic representation of an apparatus for detecting a manipulation of an object with an actuating switch in a first switch position;
Fig. 2B
the device of Fig. 2A in a second switch position;
Figure 3
a view of an actuating element comprising a body, an actuating dome and a contact element; and
Fig. 4
a sectional view of the in Fig. 3 shown actuating element.

Die Fig. 1 zeigt in einer schematischen Ansicht eine Anordnung 4 zum Erkennen einer Manipulation an einem Gegenstand mit einem Gehäuse. Bei dem Gegenstand kann es sich beispielsweise um ein mobiles Bezahlterminal handeln. Es kann sich bei dem Gegenstand aber auch beispielsweise um eine Alarmanlage, einen Rauchmelder oder einen anderen vor unbefugten Eingriffen zu schützenden Gegenstand mit einem Gehäuse handeln.The Fig. 1 shows a schematic view of an arrangement 4 for detecting a manipulation of an object with a housing. The item may be, for example, a mobile payment terminal. However, the object may also be, for example, an alarm system, a smoke detector or another object to be protected against unauthorized interference with a housing.

Die Anordnung 4 umfasst ein Gehäuse 1 mit wenigstens einem ersten Gehäuseteil 10 und einem zweiten Gehäuseteil 11. Der erste Gehäuseteil 10 kann beispielsweise eine demontierbare Gehäuserückwand oder ein Gehäusedeckel sein. Der zweite Gehäuseteil 11 kann beispielsweise einen sensiblen Gegenstand, wie etwa die Steuerungs- und Speicherelektronik eines mobilen Bankterminals, aufnehmen und diesen zusammen mit dem ersten Gehäuseteil 10 als Gehäuse 1 umschließen.The arrangement 4 comprises a housing 1 with at least a first housing part 10 and a second housing part 11. The first housing part 10 may be, for example, a removable housing rear wall or a housing cover. The second housing part 11 can, for example, a sensitive object, such as the control and storage electronics of a mobile bank terminal record and enclose this together with the first housing part 10 as a housing 1.

Eine unbefugte Person könnte sich durch Demontieren des ersten Gehäuseteils 10 vom zweiten Gehäuseteil 11 Zugang zu dem vom Gehäuse 1 umschlossenen Gegenstand verschaffen. In diesem Fall ist es wünschenswert, eine Demontage des ersten Gehäuseteils 10 vom zweiten Gehäuseteil 11 zu erkennen.An unauthorized person could gain access to the housing enclosed by the housing 1 by dismantling the first housing part 10 from the second housing part 11. In this case, it is desirable to detect a disassembly of the first housing part 10 from the second housing part 11.

Um zu erkennen, ob der erste Gehäuseteil 10 vom zweiten Gehäuseteil 11 demontiert worden ist, ist bei der Anordnung 4 eine Vorrichtung 2 zum Erkennen einer Manipulation an einem Gegenstand vorgesehen, die mit einer im zweiten Gehäuseteil 11 angeordneten Detektionselektronik 3 elektrisch verbunden ist und im Falle einer Demontage des ersten Gehäuseteils 10 ein elektrisches Signal an die Detektionselektronik 3 abgibt.In order to detect whether the first housing part 10 has been removed from the second housing part 11, in the arrangement 4, a device 2 for detecting a manipulation of an object is provided, which is electrically connected to a detection device 3 arranged in the second housing part 11 and in the case a disassembly of the first housing part 10 emits an electrical signal to the detection electronics 3.

Zu diesem Zweck umfasst die Vorrichtung 2 zum Erkennen einer Manipulation an einem Gegenstand ein an einem Träger 20 angeordnetes Betätigungselement 21, wobei der Träger 20 zusammen mit dem Betätigungselement 21 an dem ersten Gehäuseteil 10 angeordnet ist, und einen auf einer Auswerteeinrichtung 23 angeordneten Betätigungsschalter 22, wobei die Auswerteeinrichtung 23 zusammen mit dem Betätigungsschalter an dem zweiten Gehäuseteil 11 angeordnet ist. Bei der Auswerteeinrichtung 23 kann es sich beispielsweise um eine Leiterplatte handeln.For this purpose, the device 2 for detecting a manipulation on an object comprises an actuating element 21 arranged on a carrier 20, the carrier 20 being arranged together with the actuating element 21 on the first housing part 10, and an actuating switch 22 arranged on an evaluation device 23, wherein the evaluation device 23 is arranged together with the operation switch on the second housing part 11. The evaluation device 23 may be, for example, a printed circuit board.

Das Betätigungselement 21 und der Betätigungsschalter 20 sind derart gegenüberliegend angeordnet, dass das Betätigungselement 21 in einer Normalgebrauchsstellung der Vorrichtung 2, in der der erste Gehäuseteil 10 am zweiten Gehäuseteil 11 montiert ist, mechanisch auf den Betätigungsschalter 22 einwirkt und ihn in einer ersten Schalterstellung vorgespannt hält. Die Normalgebrauchsstellung der Vorrichtung 2 zum Erkennen einer Manipulation an einem Gegenstand ist dabei diejenige Stellung, in der sich die Vorrichtung 2 befindet, wenn der Gegenstand nicht manipuliert worden ist.The actuating element 21 and the actuating switch 20 are arranged opposite one another such that the actuating element 21 in a normal use position of the device 2, in which the first housing part 10 is mounted on the second housing part 11, acts mechanically on the actuating switch 22 and keeps it biased in a first switch position , The normal use position of the device 2 for detecting a manipulation of an object is the position in which the device 2 is located, if the object has not been manipulated.

Bei einer Demontage des ersten Gehäuseteils 10 vom zweiten Gehäuseteil 11 wird das Betätigungselement 21 von dem Betätigungsschalter 22 entfernt, und der Betätigungsschalter 22 nimmt eine zweite Schalterstellung ein, die seinem nicht vorgespannten Zustand entspricht. Dabei erzeugt die Auswerteeinrichtung 23, die beispielsweise eine Leiterplatte 23 sein kann, auf der der Betätigungsschalter 22 elektrisch verbunden angeordnet ist, ein elektrisches Signal, welches an die Detektionselektronik 3 weitergegeben wird. Dabei kann die Detektionselektronik 3 beispielsweise auch direkt auf der Leiterplatte 23 angeordnet sein.Upon disassembly of the first housing part 10 from the second housing part 11, the actuator 21 is removed from the operation switch 22, and the operation switch 22 assumes a second switch position, which corresponds to its non-biased state. In this case, the evaluation device 23, which may be, for example, a printed circuit board 23, on which the actuating switch 22 is arranged electrically connected, generates an electrical signal, which is transmitted to the detection electronics 3. In this case, the detection electronics 3 may for example also be arranged directly on the printed circuit board 23.

Das elektrische Signal kann von der Detektionselektronik 3 kann auf vielfältige Weise verarbeitet werden. Beispielsweise kann das Ereignis des Auftretens des elektrischen Signals zum späteren Auslesen gespeichert werden, so dass man eine Manipulation im Nachhinein erkennen kann. Alternativ kann das elektrische Signal aber auch unmittelbar einen Alarm auslösen oder, wenn es sich bei dem Gegenstand um ein elektrisches oder elektronisches Gerät handelt, bestimmte Funktionen dieses Gerätes außer Kraft setzen.The electrical signal can be processed by the detection electronics 3 in many ways. For example, the event of the occurrence of the electrical signal can be stored for later reading, so that it is possible to detect subsequent manipulation. Alternatively, however, the electrical signal can also trigger an alarm immediately or, if the object is an electrical or electronic device, override certain functions of this device.

Um eine befugte Demontage zuzulassen, ist bei der in Fig. 1 dargestellten Anordnung 4 eine äußere Schnittstelle 30 mit der Auswerteeinrichtung 23 und/oder der Detektionselektronik 3 vorgesehen, über die, beispielsweise durch Eingeben eines Passworts mit einer Tastatur, die Erzeugung des elektrischen Signals außer Kraft gesetzt oder alternativ die Verarbeitung des elektrischen Signals geändert oder unterbunden werden kann.In order to allow authorized dismantling, the in Fig. 1 4 arrangement provided an external interface 30 with the evaluation device 23 and / or the detection electronics 3, via which, for example by entering a password with a keyboard, the generation of the electrical signal out of force set or alternatively, the processing of the electrical signal can be changed or prevented.

Fig. 2A und Fig. 2B zeigen eine Vorrichtung 2 zum Erkennen einer Manipulation an einem Gegenstand in einer schematischen Ansicht im Querschnitt. Der Betätigungsschalter 22 weist eine Schnappscheibe 220 auf. Die Schnappscheibe 220 hat einen stabilen Zustand, der einer ersten, in Fig. 2B gezeigten Stellung der Schnappscheibe 220 entspricht, und einen metastabilen Zustand, der einer zweiten, in Fig. 2A dargestellten Stellung der Schnappscheibe 220 entspricht. Das Betätigungselement 21 weist einen Körper 210 und einen von dem Körper in Richtung des Betätigungsschalters 22 vorstehenden Betätigungsdom 211 zum Einwirken auf die Schnappscheibe 220 auf, um diese bei einer Manipulation an dem Gegenstand von einer ersten Stellung in eine zweite Stellung zu schalten. Erfindungsgemäß ist an dem Betätigungsdom 211, der eine erste Steifigkeit aufweist, ein Anlageelement 213 zum Einwirken auf die Schnappscheibe 220 angeordnet, das eine zweite, größere Steifigkeit aufweist. Fig. 2A and Fig. 2B show a device 2 for detecting a manipulation of an object in a schematic view in cross section. The operating switch 22 has a snap-action disc 220. The snap-action disc 220 has a stable state of a first, in Fig. 2B shown position of the snap-action disc 220 corresponds, and a metastable state, the second, in Fig. 2A shown position of the snap-action disc 220 corresponds. The actuator 21 has a body 210 and an actuation dome 211 projecting from the body towards the actuation switch 22 for acting on the snap-action disc 220 to switch from a first position to a second position upon manipulation of the object. According to the invention, a contact element 213 for acting on the snap-action disc 220, which has a second, greater rigidity, is arranged on the actuation dome 211, which has a first rigidity.

Mittels einer Auswerteeinrichtung 23 kann anhand der Stellung der Schnappscheibe 220 und/oder eines Schaltvorgangs der Schnappscheibe 220 zwischen der ersten Stellung und der zweiten Stellung ein elektrisches Signal zu erzeugt werden.By means of an evaluation device 23 can be generated on the basis of the position of the snap disc 220 and / or a switching operation of the snap disc 220 between the first position and the second position, an electrical signal.

Die Fig. 2A zeigt die Vorrichtung 2 zum Erkennen einer Manipulation an einem Gegenstand in einer Stellung, die der Normalgebrauchsstellung der Vorrichtung 2 in der in Fig. 1 gezeigten Anordnung 4 entspricht. In diesem Fall ist die Schnappscheibe 220 durch Einwirken des Anlageelements 213 in ihrer zweiten, metastabilen Stellung vorgespannt. Grundsätzlich kann aber auch die in Fig. 2B gezeigte Stellung einer Normalgebrauchsstellung entsprechen.The Fig. 2A shows the device 2 for detecting a manipulation of an object in a position which is the normal use position of the device 2 in the in Fig. 1 shown arrangement 4 corresponds. In this case, the snap-action disc 220 is biased in its second, metastable position by the action of the abutment element 213. Basically, but also in Fig. 2B shown position correspond to a normal use position.

Die Fig. 3 zeigt in größerem Detail den Körper 210 des Betätigungselements 21 mit dem Betätigungsdom 211 und dem Anlageelement 213 in einer Ausführungsform, bei der der Betätigungsdom 211 eine rotationssymmetrische Grundform, nämlich konische Grundform aufweist. Das Anlageelement 213 ist in dieser vorteilhaften Ausgestaltung kugelförmig ausgebildet und, wie in der Schnittsansicht in Fig. 4 gut zu erkennen, in einer entsprechend in etwa halbkugelförmig ausgeformten Aufnahmeöffnung 212 angeordnet.The Fig. 3 shows in greater detail the body 210 of the actuating element 21 with the actuating dome 211 and the contact element 213 in an embodiment in which the actuating dome 211 has a rotationally symmetrical basic shape, namely a conical basic shape. The contact element 213 is spherical in this advantageous embodiment and, as in the sectional view in FIG Fig. 4 clearly visible, arranged in a corresponding approximately hemispherical shaped receiving opening 212.

Der erfindungsgemäße Unterschied zwischen den Steifigkeiten des Betätigungsdoms 211 und des Anlageelements 213 ist in einer vorteilhaften Ausführungsform dadurch realisiert, dass der Betätigungsdom 211 aus Silikon gefertigt ist und das Anlageelement 213 eine Stahlkugel ist.The difference according to the invention between the rigidity of the actuating dome 211 and the contact element 213 is realized in an advantageous embodiment in that the actuating dome 211 is made of silicone and the contact element 213 is a steel ball.

Die Vorteile einer derartigen Ausgestaltung einer Vorrichtung 2 zum Erkennen einer Manipulation an einem Gegenstand werden im Folgenden erläutert.The advantages of such an embodiment of a device 2 for detecting a manipulation of an object are explained below.

Bei der Montage einer Anordnung 4 gemäß Fig. 1 kann es im Rahmen von unvermeidlichen Fertigungsschwankungen bei der Befestigung des Betätigungselements 21 am ersten Gehäuseteil 10 und/oder des Betätigungsschalters 22 am zweiten Gehäuseteil 11 zu einem gewissen lateralen Versatz kommen. Beispielsweise kann man sich die Leiterplatte 23 mit dem Betätigungsschalter 22 oder der Betätigungsschalter 22 auf der Leiterplatte 23 ein wenig in die in Fig. 2B mit V markierte Richtung verschoben denken. In einem solchen Fall liegen die Spitze des Betätigungsdoms 211 und die Mitte der Schnappscheibe 220 nicht zentriert übereinander, und die Krafteinwirkung des Betätigungselements 21 auf die Schnappscheibe 220 erfolgt nicht genau senkrecht zu deren gewölbten Oberfläche.When mounting an assembly 4 according to Fig. 1 It can come in the context of inevitable manufacturing fluctuations in the attachment of the actuating element 21 on the first housing part 10 and / or the actuating switch 22 on the second housing part 11 to a certain lateral offset. For example, you can the circuit board 23 with the operation switch 22 or the operation switch 22 on the circuit board 23 a little in the in Fig. 2B think with V marked direction shifted. In such a case, the tip of the actuating dome 211 and the center of the snap disc 220 are not centered on each other, and the force of the actuator 21 on the snap disc 220 is not exactly perpendicular to the curved surface.

Dies kann das Problem mit sich bringen, dass das Umschnappen der Scheibe bei den Übergängen zwischen der stabilen Stellung und der metastabilen Stellung der Scheibe bei anderen als den vordefinierten, einer ideal zentrierten relativen Anordnung von Betätigungsschalter 22 und Betätigungselement 21 entsprechenden Umschnappkräften erfolgt. Um diesen Effekt klein zu halten, ist es vorteilhaft, den Betätigungsdom 211 aus einem elastischen Material wie Silikon zu fertigen, damit er sich beim nicht-zentrierten Einwirken auf die Schnappscheibe 220 entsprechend verbiegen kann und somit die senkrecht auf die gewölbte Oberfläche der Schnappscheibe 220 wirkende Kraftkomponente möglichst groß wird.This may involve the problem that the snap-over of the disc occurs at the transitions between the stable position and the metastable position of the disc at other than the predefined Umschnappkräften corresponding to an ideal centered relative arrangement of actuation switch 22 and actuator 21. In order to minimize this effect, it is advantageous to manufacture the actuation dome 211 from an elastic material such as silicone so that it can bend correspondingly when acting non-centered on the snap-action disc 220 and thus acting perpendicular to the curved surface of the snap-action disc 220 Force component is as large as possible.

Ein kugelförmiges Anlageelement 220 aus einem nicht elastischen, im Vergleich zum Betätigungsdom 211 steiferen Material wie z.B. Stahl wirkt hierbei unterstützend im Sinne einer Verringerung der Streuung der Umschnappkräfte, da es auch bei nicht ideal senkrechtem Einwirken auf die gewölbte Oberfläche der Schnappscheibe 220 eine gleichbleibend kleine, im Falle der Kugelform sogar annähernd punktförmige, Berührfläche sicherstellt. Somit werden mögliche schwankende Einflüsse auf die Umschnappkräfte, die von Eigenschaften des Anlageelements 220 abhängen, unterdrückt.A spherical contact element 220 made of a non-elastic, compared to the actuation dome 211 stiffer material such as steel here helps to reduce the dispersion of Umschnappkräfte, since it is not ideal even acting on the curved surface of the snap-action disc 220 a consistently small, in the case of the spherical shape even approximately punctiform, ensures contact surface. Thus, possible fluctuating influences on the snap-in forces, which depend on characteristics of the abutment element 220, are suppressed.

Ein elastischer Betätigungsdom 220 hat den weiteren Vorteil, dass in gewissem Maße (beispielsweise transportbedingte) Erschütterungen des Gehäuses abgefedert werden können, so dass diese nicht zu einem Umschnappen der Schnappscheibe 220 und damit zu einer Fehldiagnose hinsichtlich einer vermeintlichen Manipulation führen.An elastic actuation dome 220 has the further advantage that to some extent (for example transport-related) vibrations of the housing can be cushioned, so that they do not lead to snapping the snap disc 220 and thus to a misdiagnosis in terms of a supposed manipulation.

Andererseits verhindert das steifere Anlageelement eine allzu ausgeprägte Hysterese beim Schalten zwischen den beiden Schaltstellungen des Betätigungsschalters 22 durch lange Kriechprozesse. Diese würde wiederum einen unerwünscht großen Einfluss von (möglicherweise Fertigungsschwankungen oder veränderlichen Umwelteinflüssen unterliegenden) Eigenschaften des Betätigungselements 21 auf den Schaltpunkt, der möglichst allein durch die Schnappscheibe 220 eingestellt werden soll, mit sich bringen.On the other hand, prevents the stiffer contact element an overly pronounced hysteresis when switching between the two switching positions of the actuating switch 22 by long creep processes. This would in turn bring about an undesirably large influence of (possibly manufacturing fluctuations or changing environmental influences) properties of the actuating element 21 on the switching point, which should be adjusted as far as possible solely by the snap-action disc 220.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Gehäusecasing
1010
Erster GehäuseteilFirst housing part
1111
Zweiter GehäuseteilSecond housing part
22
Vorrichtung zum Erkennen einer Manipulation an einem GegenstandDevice for detecting a manipulation of an object
2020
Trägercarrier
2121
Betätigungselementactuator
210210
Körper des BetätigungselementsBody of the actuator
211211
BetätigungsdomBetätigungsdom
212212
Aufnahmeöffnungreceiving opening
213213
Anlageelementcontact element
2222
Betätigungsschalteractuating switch
220220
Schnappscheibesnap disk
221221
Körper des BetätigungsschaltersBody of the control switch
2323
Auswerteeinrichtung (Leiterplatte)Evaluation device (printed circuit board)
33
Detektionselektronikdetection electronics
3030
Äußere SchnittstelleExternal interface
44
Anordnung zum Erkennen einer Manipulation an einem Gegenstand mit einem GehäuseArrangement for detecting a manipulation of an object with a housing
AA
Auslöserichtungtripping direction
VV
Versatzrichtungoffset direction

Claims (12)

  1. Device (2) for detecting manipulation of an object, having
    - an actuating switch (22) which has a snap-action disk (220) which can be switched between a first position and a second position,
    - an actuating element (21) which has a body (210) and an actuating stud (211) which projects from the body of the actuating element (21) and has the purpose of acting on the snap-action disk (220), wherein the actuating stud (211) has a first degree of stiffness,
    characterized by
    a bearing element (213) which is arranged on the actuating stud (211) for acting on the snap-action disk (220), wherein the bearing element (213) has a second degree of stiffness which is greater than the first degree of stiffness.
  2. Device (2) according to Claim 1, characterized in that the actuating element (21) is manufactured from silicone.
  3. Device (2) according to Claim 1 or 2, characterized in that the actuating element (21) has a rotationally symmetrical basic shape.
  4. Device (2) according to one of Claims 1 to 3, characterized in that the bearing element (213) is of spherical design.
  5. Device (2) according to one of the preceding claims, characterized in that the bearing element (213) is arranged in a receptacle opening (212) which is formed on the actuating stud (211).
  6. Device (2) according to one of the preceding claims, characterized in that the bearing element (213) is fabricated from metal.
  7. Device (2) according to Claim 6, characterized in that the bearing element (213) is fabricated from steel.
  8. Device (2) according to one of the preceding claims, characterized in that the snap-action disk (220) has a stable state which corresponds to the first position and a meta-stable state which corresponds to the second position.
  9. Device (2) according to one of the preceding claims, characterized in that in a normal position of use of the device the bearing element (213) acts on the snap-action disk (220) and holds the snap-action disk (220) in the second position.
  10. Device (2) according to one of the preceding claims, characterized in that manipulation can be detected on the basis of the snapping of the snap-action disk (220) into the first position.
  11. Device (2) according to one of the preceding claims, characterized by an evaluation device (23) which is designed to generate an electrical signal on the basis of the position of the snap-action disk (220) and/or of a switching process of the snap-action disk (220) between the first position and the second position.
  12. Arrangement (4) having a housing (1) and a device (2) for performing manipulation according to one of the preceding claims, characterized in that the actuating element (21) of the device (2) is arranged on a first housing part (10) of the housing (1), and the actuating switch (22) is arranged on a second housing part (11) of the housing (1).
EP14184343.3A 2014-09-11 2014-09-11 Apparatus for detecting a manipulation of an object Active EP2996129B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14184343.3A EP2996129B1 (en) 2014-09-11 2014-09-11 Apparatus for detecting a manipulation of an object
BR112017004753-5A BR112017004753B1 (en) 2014-09-11 2015-08-18 Device for detecting manipulation of an object
US15/510,505 US10229798B2 (en) 2014-09-11 2015-08-18 Device for detecting manipulation of an object
PCT/EP2015/068915 WO2016037808A1 (en) 2014-09-11 2015-08-18 Device for detecting manipulation on an object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14184343.3A EP2996129B1 (en) 2014-09-11 2014-09-11 Apparatus for detecting a manipulation of an object

Publications (2)

Publication Number Publication Date
EP2996129A1 EP2996129A1 (en) 2016-03-16
EP2996129B1 true EP2996129B1 (en) 2017-07-19

Family

ID=51518649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14184343.3A Active EP2996129B1 (en) 2014-09-11 2014-09-11 Apparatus for detecting a manipulation of an object

Country Status (4)

Country Link
US (1) US10229798B2 (en)
EP (1) EP2996129B1 (en)
BR (1) BR112017004753B1 (en)
WO (1) WO2016037808A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382338A (en) * 1966-04-26 1968-05-07 Ibm Pushbutton actuator for elastomeric switch
US4190748A (en) * 1977-01-31 1980-02-26 Rogers Corporation Keyboard switch assembly
US4352968A (en) * 1981-02-09 1982-10-05 Kb Denver, Inc. Elastomeric boot for a keyboard subassembly
DE4139554A1 (en) 1991-10-14 1993-04-15 Fela Mikrotechnik Ag ELECTRIC KEY SWITCH
US5280145A (en) * 1992-12-30 1994-01-18 Jay-El Products, Inc. Switch actuating mechanism
TW201101110A (en) * 2009-06-18 2011-01-01 Asia Optical Co Inc Input device capable of increasing contact sensitivity
EP2927720B1 (en) * 2010-02-03 2018-10-17 Tyco Electronics Nederland B.V. Enclosure assembly for a connector, strain relief element, and method
DE102010021696A1 (en) 2010-05-27 2011-12-01 Heraeus Quarzglas Gmbh & Co. Kg Process for the production of a quartz glass crucible with a transparent inner layer of synthetically produced quartz glass

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20170256371A1 (en) 2017-09-07
BR112017004753B1 (en) 2022-06-21
WO2016037808A1 (en) 2016-03-17
BR112017004753A2 (en) 2018-06-26
US10229798B2 (en) 2019-03-12
EP2996129A1 (en) 2016-03-16

Similar Documents

Publication Publication Date Title
EP2336982B1 (en) Mobile device
EP4258312A2 (en) Door unlocking and/or door opening mechanism with an actuating device
EP2984668B1 (en) Device for operating multiple functions in a motor vehicle
EP2024982B1 (en) Operational control for a vehicle
EP3599628B1 (en) Operating device for a motor vehicle, motor vehicle with an operating device and method for operating an operating device
EP2996129B1 (en) Apparatus for detecting a manipulation of an object
EP1718934B1 (en) Passive magnetic position sensor
DE202020105904U1 (en) Device for detecting a key press of a key module and keyboard
DE4022388C2 (en)
EP3850648B1 (en) Key module for a keyboard, keyboard, and method for detecting the actuation of a key module of a keyboard
EP3485500B1 (en) Shift operating element
EP2228908B1 (en) Method of operating a piezo switching element
EP2883741B1 (en) Unit for occupant detection for a vehicle seat
EP3244430B1 (en) Device for converting mechanical movements into an electrical switching signal
DE19508014C1 (en) Mechanical acceleration switch
DE102008023004A1 (en) Alarm activating device for fly-wheel of motor vehicle, has movable element touching electrical contact with closed current circuit in activation position, where movable element is in form of electrical contact to which tension is applied
DE102006047331B4 (en) Keyboard with keys protected against manipulation
EP3413465B1 (en) Operating device for operating least one device of a motor vehicle, with a separate spring element as earthing connection and motor vehicle
DE102007009006A1 (en) Push-button for motor vehicle, has contact points, which are interconnected for current path, where contact points are formed by conductor strip of plastic over molded scrap web
DE102019111952A1 (en) Input device for a motor vehicle for recognizing a pressure input
WO2022078831A1 (en) Input device for a motor vehicle with voltage-based error detection
WO1996021937A1 (en) Mechanical acceleration switch
DE102006035113A1 (en) Hearing device i.e. behind-the-ear hearing aid, has electrical switching device with contact spring that is designed such that compressive force of cover on guide is decoupled from compressive force of another guide
DE10062380A1 (en) Keyboard assembly for an electronic device and electronic device
WO2015176752A1 (en) Capacitive sensor unit and headphones having a capacitive sensor unit

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

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160914

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170210

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 4

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 911116

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170815

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502014004635

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170719

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171019

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171020

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171119

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171019

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502014004635

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

26N No opposition filed

Effective date: 20180420

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170930

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170930

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170911

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 911116

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190911

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20230518 AND 20230524

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230823

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230822

Year of fee payment: 10

Ref country code: DE

Payment date: 20230822

Year of fee payment: 10