WO2012004386A2 - Feder, insbesondere für einen drucktaster - Google Patents
Feder, insbesondere für einen drucktaster Download PDFInfo
- Publication number
- WO2012004386A2 WO2012004386A2 PCT/EP2011/061629 EP2011061629W WO2012004386A2 WO 2012004386 A2 WO2012004386 A2 WO 2012004386A2 EP 2011061629 W EP2011061629 W EP 2011061629W WO 2012004386 A2 WO2012004386 A2 WO 2012004386A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spring
- sensor means
- magnet
- carrier
- sliding
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/44—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying or interconverting oscillating or reciprocating motions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/025—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by having a particular shape
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
- G01L1/044—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs of leaf springs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
- G01L1/122—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using permanent magnets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/10—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the capsule type
-
- 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
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade 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
- H01H13/50—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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96038—Inductive touch switches
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18992—Reciprocating to reciprocating
Definitions
- the present invention relates to a spring, in particular for a pushbutton, a spring arrangement and a probe arrangement.
- Pushbuttons are used in a variety of applications to convert human instructions into electrical signals. In order to guarantee several years of safe operation, contactless pushbuttons have proven themselves. These are currently available capacitively, optically and as inductive proximity switches. Due to the increasing miniaturization, for example, in portable devices such as mobile phones, a low overall height of the pushbutton is desirable. In addition, design aspects must be taken into account, for example by a flat design of the housing.
- Object of the present invention is to provide a spring, a spring assembly and a probe assembly that allow contactless detection of actuation of the push button and also allow low heights.
- the spring which is particularly suitable for a pushbutton, is for attachment to a support and for detecting a vertical force during a movement. activation of the pushbutton.
- the spring is designed such that it converts a vertical movement in a horizontal movement when actuated.
- the hori zontal ⁇ movement is detectable by a sensor means.
- the proposed spring allows a push-button function that allows reliable non-contact detection while low vertical movement to trigger an actuation.
- the proposed principle allows detecting an actuation of a pushbutton with low sensitivity to electromagnetic interference, temperature changes and humidity.
- the low profile and simple function resulting from the vertical to horizontal motion conversion also allows for easy system integration, assembly, testing and calibration.
- the conversion of the vertical into the horizontal movement preferably takes place by elastic deformation of the spring.
- the elastic deformation can also a restoring force erzeu ⁇ gene, which results in that after an actuation of the spring returns to its initial position or rest position.
- the spring comprises at least one attachment region for attachment to the carrier.
- the attachment can be done for example by means of a screw.
- at least one sliding area is preferred for Sliding the spring over the sensor means provided.
- the mechanical actuation is ultimately converted into an electrical signal.
- at least one Kraftaufnah ⁇ me Scheme for introducing the force exerted in the vertical direction during actuation force is provided in the spring.
- a sliding of the force receiving area with respect to ⁇ example, a glass plate can be provided on the spring.
- the force receiving portion is Ü about a respective leg of the spring on the one hand with the Fixed To ⁇ supply section and the other hand to the sliding portion of the spring.
- the design of the spring in particular the angle of the two legs of the spring with respect to the vertical, influence whether a mechanical reinforcement or weakening takes place during the conversion of the vertical into the horizontal movement.
- the spring is preferably of one piece, i.e. without joints Ge ⁇ or hinges made. Therefore, there is no mechanical play in translating the vertical motion into a horizontal motion. Due to mechanical friction, some designs may experience low hysteresis. Mechanical friction can occur both in the force absorption area and especially in the sliding area of the spring.
- the spring is preferably made of a material having a similar or identical thermal expansion as a housing surrounding the spring.
- this material may comprise a plastic or Teflon.
- the materials are selected so that the coefficients of thermal expansion are matched to each other, for example, materials with identical or similar coefficients of expansion for spring and housing are selected.
- the spring is preferably elastically deformable and thereby achieves a restoring moment for returning the spring to a starting position after the end of the actuation.
- the sliding region of the spring is preferably designed to receive a magnet.
- the sliding region of the spring could also comprise the sensor means, in which case the magnet is attached to the carrier.
- the spring may be substantially V-shaped, with one end of the V representing the attachment area or the sliding area and the middle of the V representing the force receiving area.
- the force-receiving area is connected via one leg each with mounting area and sliding area.
- a W may be provided so that a W-shaped spring results.
- a realization close to production is a U-shaped spring which can be produced in one piece with little effort and low costs and which can fulfill the relevant movement in elastic deformation without plastic deformation.
- a spring arrangement comprises a spring as described above.
- a compensating means is provided, which is firmly connected to the Befest Trentsbe ⁇ rich the spring and extending in the horizontal direction, wherein the compensation means for stationary ⁇ fixed mounting is formed with the carrier.
- the Ausdeh ⁇ expansion coefficient of the compensation means to the expansion ⁇ coefficient of the spring is adjusted such that Tempera ⁇ tureinfladore are compensated to detecting the horizontal movement with the sensor means completely or substantially.
- the compensating means is fixedly connected at one end to the carrier and slidably mounted at the other end about the carrier movable. At this end of the fastening area of the spring is attached.
- the compensation means may be formed in a vertical projection in ⁇ example U-shaped and have legs which are connected in a connecting region with the mounting portion of the spring. The legs may have at their free ends means for fixed mounting with the carrier. These may be, for example, clips, screw connections or similar stationary connections.
- the spring or the spring ⁇ arrangement in a push-button arrangement is particularly applicable to a push-button.
- a probe arrangement comprises a spring or a spring arrangement as described above.
- the carrier is connected directly to the fastening region of the spring or, if present, via the compensating means of the spring arrangement.
- a magnet is provided which is connected to the sliding portion of the spring and a sensor means which is mounted on or on the carrier for detecting a horizontal movement of the magnet in response to the vertical movement of the force receiving portion of the spring.
- the force receiving region of the spring is, for example, frictionally connected to an actuating element of the probe arrangement.
- This actuating element can be realized for example by a substantially horizontally oriented glass plate or another cover.
- Glass plates are widely used, for example, in mobile telephones, where they serve for the large-area realization of a touch-sensitive surface which operates resistively or, increasingly, capacitively.
- a large capacitive touch-sensitive Oberflä ⁇ che requires a relatively high quiescent current.
- the proposed principle is particularly advantageous advantage, since the spring allows to combine a push-button with the touch-sensitive surface.
- the push button may for example be used to activate the device from an idle state and extensively turn the berckenungsempfindli ⁇ che surface.
- a vertical movement by actuation of the glass plate leads due to the frictional connection directly to a vertical movement of the force receiving portion of the spring, which in turn leads to a horizontal movement of the sliding portion of the spring, which is detected by the sensor means and thus converted into an electrical signal.
- the sensor means comprises, for example, at least one Hall sensor, which detects a horizontal movement of the magnet and, depending on this, provides a sensor signal at a sensor output of the sensor means.
- the sensor means may be a magnetic linear position sensor, thus allowing a very robust and contactless operation.
- a Permanentmag ⁇ net which comprises at least one north and south pole, be attached to demje ⁇ nigen free end of the spring, which as
- Sliding area is designated.
- a horizontal position change of the magnet with respect to the sensor means is detected with the sensor.
- Figure 2 shows an embodiment of a magnet and a
- FIG. 3 shows a further embodiment of a spring
- FIG. 4 shows another embodiment of a spring
- Figure 7 is a plan view of the embodiment shown in Fi gur ⁇ . 6
- Figure 1 shows an embodiment of a probe assembly with a spring according to the proposed principle. It is provided a V-shaped spring 3, which is housed in a substantially cuboidal housing 1, 2, 5 together with a sensor means 4.
- the spring 3 includes a fixing portion 6 provided at one end of one of two legs of the V-shaped spring 3.
- the two legs of the spring 3 are connected together in a force receiving area 7.
- a sliding portion 8 is formed, in which a magnet 9 is provided.
- Both the force receiving region 7, as well as the mounting portion 6 and the sliding portion 8 of the spring are designed to be flattened in horizontal extension to the outside of the spring.
- Force receiving area are designed essentially with parallel surfaces.
- the mounting portion 6 of the spring is on the support 2, which forms the housing together with two side walls 5 and a Betsch Trentsplat ⁇ te 1, attached. Another two side walls of the housing are not shown due to the sectional view of Figure 1.
- a screw 10 is provided, which comprises a screw which is screwed into a turned ⁇ provided in the Befest Trentsbe ⁇ rich thread 6 by means of a screw through a hole in the carrier plate. 2
- the Sensormit ⁇ tel 4 is provided, which is connected over a large area with the carrier 2, for example by soldering or gluing.
- the sensor means 4 may be formed, for example, as an integrated circuit. No mechanically fixed connection is provided between the sliding region 8 and the sensor means 4, but the sliding region 8 can slide in a substantially horizontal direction over the sensor means. The same also applies to the force-receiving region 7 of the spring, which rests against the actuating plate 1 in a force-locking manner, wherein, when actuated, the fastening area is smaller than the sliding area in the horizontal direction due to the geometry of the spring.
- the spring 3 is made in one piece. By means of the elasti ⁇ Deforma- a restoring moment is formed, which results in that the spring returns to the end of the actuator in the initial position.
- the overall arrangement of spring 3, magnet 9, sensor means 4 and housing 1, 2, 5 is referred to as a probe arrangement. Since the detection of the horizontal movement of the magnet 9 is carried out contactlessly over the sensor means 4, it is a total of a contactless push-button.
- the sensor means 4 has not shown terminals which comprise at least one signal output. A signal at the signal output during operation of the stylus assembly provided which indicates a movement of the magnet 9 relative to the sensor means 4 and so ultimately an electrical signal as a function ei ⁇ ner human actuation of the pushbutton generated.
- the spring 3 is made in one piece as a solid body and has no joints. Therefore, there is no me ⁇ chanisches play in the transformation of the movement of the actuator plate in a vertical direction toward resulting from the horizontal movement that is used for recording. Due to existing friction in the two contact surfaces between the force receiving portion 7 and the actuator plate 1 on the one hand and between the sliding portion 8 and the sensor means 4 on the other hand, a hysteresis of the movement remain.
- the spring is made of a material having identical or similar coefficients of thermal expansion as the side walls 5 of the housing to avoid temperature drift of the probe assembly.
- materials such as plastics or Teflon come into question.
- the sensor means 4 is presently embodied as a magnetic sitionssensor Linearpo- and designed for robust and contactless Ope ⁇ ration.
- a permanent magnet 9 is introduced at the free end in the sliding region of the spring 3.
- Vertical posi tion ⁇ changes relative to the sensor means can be detected.
- Time-based and amplitude-based algorithms which can be implemented in the sensor means and will be explained in more detail below, are available for detecting the depressed state of the probe.
- an optional communications port is provided for setting parameters of the algorithm in the sensor means in ei ⁇ ner development. With this, time and / or amplitude threshold values can be set.
- Another advantage is the low sensitivity of the Tas ⁇ ters with respect to disturbances such as external magnetic fields, changes in temperature, humidity, as well as its good properties in terms of electromagnetic compatibility.
- a differential detection can play extinguish or compensate with two Hall sensors, the presence of external magnetic fields.
- the structure according to Figure 1 may be manufactured with little effort, tested and calibrated, and allows a simple Sys ⁇ temintegration, for example, in mobile devices.
- FIG. 2 shows an exemplary embodiment of a magnet 9 over a sensor means 4. While FIG. 1 shows a cross-section through a probe arrangement, FIG. 2 is a plan view of a detail of the embodiment of FIG. 1, namely only the magnet 9 above the sensor means 4 for explaining the sensor principle. that is, the detection of the horizontal movement. Other components, in particular the spring 3, are not shown here.
- the magnet 9 is a linear solenoid, and in the present case comprises meh ⁇ eral magnetic poles N, S, of which for simplicity's sake, a north pole N is located between two south poles S.
- the magnet can be displaced horizontally in the direction of the arrow, as already explained with reference to FIG.
- the sensor means 4 as an integrated circuit ⁇ be converted into the form of a sensor IC, and comprises a plurality of Hall sensors and a closed thereto at ⁇ transmitter.
- the sensor means comprises connections to its power supply 11, at least one signal output 12 and a communication connection 13 for optional configuration.
- the sensor means 4 is a linear sensor that measures the displacement of the magnet 9 ⁇ bung can detect horizontally across it. Examples of play with an oscillator, which is designed for low power ⁇ pickup, Hall elements in the sensor means are put into operation periodically in order to be measured, the magnetic position and are switched off again at the end of each measurement to save energy.
- the time between two power-on cycles can either be preset or set during operation.
- threshold values for the duration and the amplitude of the detection can be fixedly set in a register either in operation or can be set via the Kommunikati ⁇ onSport.
- a one-time programming by means of so-called fuses can be carried out. This is also referred to as one-time programming (OTP).
- OTP one-time programming
- the signal output 12 is changed in value depending on the following conditions: 1. If the difference delta (t) is greater than the threshold delta_channel, and if the amplitude of the measured value Pa (t) is greater than the threshold value of the amplitude Pa_slave, then the signal output is set to active. If the signal amplitude Pa (t) is smaller than the threshold value of the signal amplitude Pa_Schwelle, then the output becomes inactive ge switched ⁇ . 2.
- the algorithm can be configured as follows: If the amplitude of the measured value Pa (t) is greater than the
- Threshold of the Pa_Schwelle amplitude the output is switched to active.
- Pa_Schwelle is, the output is switched inactive.
- the additional condition that the time interval between two measurements is greater than a threshold value which avoids an undesired condition of a detected operating in the event of slow changes in motion, for example Temperatur Masse ⁇ stanchions, accidental operation in a carrying case of the mobile device, external magnetic fields or parasitic me ⁇ -mechanical movements to give examples.
- Figure 3 shows an alternative embodiment of the spring of Figure 1, which is not V-shaped, but U-shaped and provided with reference numeral 14 here. That is to say that the shape of the spring is described in cross-section not by an upside-down V, but by an upside down U be ⁇ .
- the U-shaped spring 14 has a flat running mounting portion 6, which can also be interpreted as a flange and in turn is secured by means of screw 10 to the support plate 2.
- the spring is in turn made in one piece.
- the force receiving portion is formed from the bottom of the "U” and may alternatively be slightly flattened to produce a better frictional Ver ⁇ connection with the actuating plate.
- the U-shaped design of the spring 14 is particularly suitable for one-piece industrial production and has in Ver ⁇ equal to the V-shaped design of Figure 1 has the advantage that a mechanically particularly stressed point of the spring, as in the force receiving area at the meeting of both legs of the spring of Figure 1 may occur is avoided in the egg-shaped design.
- a Improvement ⁇ te spring action that is, a larger elastic deforma- grammable area is achieved.
- FIG 4 shows a still further embodiment of the Fe ⁇ of which is W-shaped design in Figure 4 and provided with powerszei ⁇ chen 15 °. Due to the W-shaped design not only a force receiving area is provided, as in Figure 1, but two force receiving areas 7, which are each flattened and rest against the actuating plate 1 frictionally. Opposite on the side of the carrier 2, the flange-like fastening region 6 is provided unchanged, but an additional sliding region in the middle of the W-shaped spring 16. The sliding region which accommodates the magnet is unchanged and sliding over the sensor means 4 in the horizontal direction executed.
- the W-shaped design results in a mechanical reinforcement of the actuation, which means that even a very slight actuation over a short path in the vertical direction leads to a large deflection of the sliding region 8 and of the magnet 9 in a horizontal direction Direction must lead.
- a reliable detection of the operation with sensors is possible even at low deflections, which in turn further reduces the required height of the push button assembly.
- a spring is formed with not only two legs, but a plurality of legs to ensure the mechanical reinforcement in the transformation of vertical to horizontal movement.
- FIG. 5 shows an exemplary signal flow diagram for illustrating the mode of operation of the detection of an actuation of the pushbutton.
- the upper signal is a pe ⁇ riodischer pulse of the clock period Wt, so that the successive times tl, t2, t3 ... each periodically
- an amplitude over time is recorded, which corresponds to the intensity of the actuation of the pushbutton and is proportional to the detected amplitude Pa (t) in the sensor means. This is normalized for ease of illustration and changes in the example between 0 and 100% arbitrarily to play through various actuation situations.
- the Amplitu ⁇ de the operation was set to 0%.
- 100% amplitude ent ⁇ speaks the fully depressed push button, wherein the magnet is at its maximum horizontal displacement.
- Figure 6 shows a development of the attachment of the spring, which is arranged there in a spring arrangement. Actuating ⁇ plate 1, parallel to the support plate 2, the sensor means 4 and the spring 3 with mounting portion 6, Kraftauf ⁇ receiving area 7, sliding area 8 with magnet 9 and the two legs of the V-shaped spring are substantially unchanged to Figure 1 executed, for better elastic deformation of the force receiving area has a thinned material and a slight curvature.
- the fastening region 6 in FIG. 6 is not mechanically fixedly connected directly to the carrier, but rather to a compensating means 17 which is also arranged substantially parallel to the carrier.
- the compensating means 17 is fixedly connected to the carrier 2 at its free end , for example, as shown in Figure 6 clipped.
- the area of the compensation means 17, which is fastened directly to the attachment area 6, can slide over the carrier in the horizontal direction. If one chooses for the compensation means 17 a material with a thermal energy
- the horizontal movement of the force absorption area is exclusively due to thermal expansion.
- the horizontal movement of the sliding area is independent of the temperature Tempe ⁇ and only a vertical actuation of the support plate 1 owed.
- the force receiving region 7 has a vertical movement upon actuation and a horizontal movement dependent on the temperature due to the compensating means and its thermal expansion.
- FIG. 7 shows a plan view of the embodiment of FIG. 6, which is shown there in cross-section. It can be seen that the compensating means 17 in the plan view is U-shaped with a central region 18 which extends substantially in one main direction, at which two legs 19 join at right angles, each of which comprises at its end a connection 20 made by clipping.
- Top view shows the fixed with the compensation means verbun ⁇ which mounting portion 6, the force receiving portion 7 and the magnet 9, which is shown in dashed lines and is arranged in the sliding ⁇ area 8 of the spring.
- the sensor means 4 is arranged in the square Wesentli ⁇ chen.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Push-Button Switches (AREA)
- Switches With Compound Operations (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020137003078A KR101426212B1 (ko) | 2010-07-08 | 2011-07-08 | 스프링, 특히 푸시 버튼용 스프링 |
| US13/809,156 US9035731B2 (en) | 2010-07-08 | 2011-07-08 | Spring, particularly for a push button |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010026516A DE102010026516B4 (de) | 2010-07-08 | 2010-07-08 | Feder für einen Drucktaster, Federanordnung und Tasteranordnung |
| DE102010026516.0 | 2010-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012004386A2 true WO2012004386A2 (de) | 2012-01-12 |
| WO2012004386A3 WO2012004386A3 (de) | 2012-06-28 |
Family
ID=44628650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2011/061629 Ceased WO2012004386A2 (de) | 2010-07-08 | 2011-07-08 | Feder, insbesondere für einen drucktaster |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9035731B2 (de) |
| KR (1) | KR101426212B1 (de) |
| DE (1) | DE102010026516B4 (de) |
| WO (1) | WO2012004386A2 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5947229B2 (ja) | 2013-01-10 | 2016-07-06 | Ntn株式会社 | 磁気式荷重センサおよび電動ブレーキ装置 |
| US10557533B2 (en) * | 2015-07-30 | 2020-02-11 | Nec Corporation | Linear motion mechanism formed integrally |
| KR101600246B1 (ko) * | 2015-10-21 | 2016-03-04 | 박정원 | 무접점 스위치 |
| US10275055B2 (en) | 2016-03-31 | 2019-04-30 | Azoteq (Pty) Ltd | Rotational sensing |
| FR3053785B1 (fr) * | 2016-07-06 | 2020-07-31 | Crouzet Automatismes | Dispositif apte a detecter une force d’appui |
| CN111965865A (zh) * | 2020-09-08 | 2020-11-20 | 河源思比电子有限公司 | 一种可提高良品率的双稳态液晶显示模组热压装置 |
| WO2023275006A1 (en) * | 2021-06-28 | 2023-01-05 | Melexis Technologies Sa | Force sensing scale with target |
| EP4113085B1 (de) * | 2021-06-28 | 2025-03-26 | Melexis Technologies SA | Kraftsensor mit ziel auf einem halbleitergehäuse |
| US11587742B1 (en) * | 2021-09-02 | 2023-02-21 | Medtronic Minimed, Inc. | Ingress-tolerant input devices |
| EP4339573A1 (de) * | 2022-09-15 | 2024-03-20 | Melexis Technologies SA | Anordnung eines integrierten soft-kraft-sensors |
| DE202024002566U1 (de) * | 2024-08-01 | 2025-11-10 | Neura Robotics GmbH | Vorrichtung zur Messung einer Kraft und/oder eines Drehmoments |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3621415A (en) * | 1970-06-18 | 1971-11-16 | Amf Inc | Precision reed-type snap switches |
| JPS5468174U (de) * | 1977-10-24 | 1979-05-15 | ||
| JPS56148824U (de) * | 1980-04-08 | 1981-11-09 | ||
| JPS56148824A (en) | 1980-04-21 | 1981-11-18 | Nec Corp | Formation of electrode |
| DE4330576C1 (de) | 1993-09-09 | 1994-11-10 | Preh Elektro Feinmechanik | Tastschalter |
| JPH0817286A (ja) * | 1994-06-29 | 1996-01-19 | Omron Corp | スイッチ機構 |
| JPH117860A (ja) | 1997-06-17 | 1999-01-12 | Sagami Denshi Kogyo:Kk | 軽操作スイッチ |
| JP2001229794A (ja) * | 2000-02-17 | 2001-08-24 | Idec Izumi Corp | 薄型スイッチおよびスイッチ付表示パネル |
| JP2003197078A (ja) * | 2001-12-27 | 2003-07-11 | Takata Corp | 磁気式近接スイッチ及びバックルスイッチ |
| JP4595741B2 (ja) * | 2005-08-17 | 2010-12-08 | パナソニック株式会社 | スイッチ |
| JP4741989B2 (ja) | 2006-07-07 | 2011-08-10 | キヤノン株式会社 | 撮像装置及び撮像方法 |
| JP4735452B2 (ja) * | 2006-07-13 | 2011-07-27 | パナソニック株式会社 | プッシュスイッチ |
| JP2008214800A (ja) | 2007-03-02 | 2008-09-18 | Toray Ind Inc | 繊維およびそれからなる繊維製品並びに繊維ブラシ |
-
2010
- 2010-07-08 DE DE102010026516A patent/DE102010026516B4/de not_active Expired - Fee Related
-
2011
- 2011-07-08 KR KR1020137003078A patent/KR101426212B1/ko not_active Expired - Fee Related
- 2011-07-08 US US13/809,156 patent/US9035731B2/en not_active Expired - Fee Related
- 2011-07-08 WO PCT/EP2011/061629 patent/WO2012004386A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| None |
Also Published As
| Publication number | Publication date |
|---|---|
| US9035731B2 (en) | 2015-05-19 |
| US20130194028A1 (en) | 2013-08-01 |
| WO2012004386A3 (de) | 2012-06-28 |
| DE102010026516B4 (de) | 2013-04-11 |
| KR101426212B1 (ko) | 2014-08-01 |
| KR20130029811A (ko) | 2013-03-25 |
| DE102010026516A1 (de) | 2012-01-12 |
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