EP0304847B1 - Press key - Google Patents
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- Publication number
- EP0304847B1 EP0304847B1 EP88113626A EP88113626A EP0304847B1 EP 0304847 B1 EP0304847 B1 EP 0304847B1 EP 88113626 A EP88113626 A EP 88113626A EP 88113626 A EP88113626 A EP 88113626A EP 0304847 B1 EP0304847 B1 EP 0304847B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key body
- axis
- auf
- key
- bow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/12—Push-buttons
- H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/02—Controlling members for hand actuation by linear movement, e.g. push buttons
Definitions
- the invention relates to a push button according to the preamble of claim 1.
- a push button with an elongated button body is known, on which a swivel bracket is articulated in the region of its two ends.
- the swivel bracket transfers part of the actuating force to the opposite end of the key body. This prevents the key body from tilting, which would cause the tappet connected to the key body to tilt in its guide, which would ultimately disrupt the function of the pushbutton.
- the swivel bracket is counter-mounted in receiving elements on a fixed base plate, the receiving elements mostly being arranged within the base plate area covered by the key body for reasons of modular construction.
- the object of this invention is therefore to develop a push button of the type mentioned above so that it can be assembled mechanically in a simple manner and with little effort.
- Such a pushbutton provided with sliding bevels is assembled by a single one-dimensional movement, which can be carried out mechanically with a simple device.
- the push button according to the invention is thus to be treated like a push button without swivel bracket during assembly.
- a concave course of the sliding bevel results in a favorable distribution of the force components acting on the second bracket axis, since the actual displacement of the second bracket axis only takes place when the plunger of the key body is already securely guided in the housing.
- first bracket axis is only rotatable on the key body and the second bracket axis is rotatably and displaceably mounted in the receiving elements has the advantage when mounting the push button that the first bracket axis is always in a defined position on the key body and on the other hand that storage , which allows movements in one plane, as is necessary for a displacement of the second bracket axis, is more suitable for an automatic feeding of an axis.
- the design of the receiving elements in connection with a sliding slope enables a continuous and smooth insertion of the second bracket axis, as well as a problem-free and low-resistance sliding of the second bracket axis from the receiving elements when the push button is possibly removed.
- the design of the second stirrup axis in the form of spaced-apart axle supports usually makes it possible to make the sliding bevels and to arrange the receiving elements within the base area covered by the key body, since then a housing arranged between the free ends of the axle stub does not stand in the way of the second bracket axis when it is inserted into the receiving elements.
- FIG. 1 shows a pushbutton DT arranged on a horizontal base plate GP, which essentially consists of a housing G, an elongated key body TK and a swivel bracket SB.
- the housing G fastened on the base plate GP has a shaft-like opening SOE, which is directed perpendicular to the base plate GP onto a spring element FE located in the interior of the housing G.
- the key body TK which is arranged with its longitudinal direction parallel to the base plate GP, extends over the housing G. At half its length, it has a cylindrical plunger S projecting at right angles to the base plate GP, which is axially guided in the shaft-like opening SOE of the housing G and presses with its end SE onto the spring element FE.
- the key body TK is each provided with a bearing element LE, in which a first bracket axis EBA of the swivel bracket SB is mounted parallel to the longitudinal direction of the button body TK so that it can be rotated about its own axis.
- the swivel bracket SB is composed of the first bracket axis EBA and a second bracket axis ZBA parallel to this.
- This second bracket axis ZBA the course of which is indicated by a broken line, consists of two spaced-apart axle connectors AS, each of which is rigidly connected at one end via a connecting element VE to an assigned end of the first bracket axis EBA and which point towards one another with their free ends .
- the swivel bracket can thus be easily formed from a single piece of wire.
- axle supports AS rest in assigned receiving elements UP, which are fastened on the base plate GP.
- receiving elements AUF In front of the receiving elements AUF there is a sliding slope AGS for the relevant axle socket AS.
- FIG. 2 shows in cross section the key body TK and a receiving element AUF with associated slip slope AGS.
- the key body TK whose plunger S is also indicated together with the housing G, shows one of the bearing elements LE for the first bracket axis EBA, which runs inside the key body TK along its rear longitudinal edge HLK.
- the bearing elements LE each consist in a simple manner of a crossbar with a bore and a snap-in opening EOE for the problem-free reception of the first bracket axis EBA.
- the second bracket axis ZBA is assigned to the front longitudinal edge VLK of the key body TK and runs below it in the receiving elements AUF on the base plate GP.
- the receiving elements AUF each consist of a strip-shaped sliding surface GLF which is oriented in the transverse direction to the key body TK and runs parallel to the base plate GP and which has a parallel retaining lug with its free end in the transverse direction to the key body TK pointing towards the sliding slope AGS NA is covered. Between the sliding surface GLF and the retaining lug NA is the respective axle socket AS, which can be rotated about its own axis and displaced in the transverse direction to the key body TK.
- the sliding slope AGS upstream of the receiving elements AUF is located with its ridge SP below the first bracket axis EBA.
- the slip bevels AGS fall from their respective ridges SP in a concave arc to the sliding surface GF of the respective receiving element UP and pass smoothly into the sliding surface.
- the pushbutton DT which is limited to inserting the plunger of the key body TK into the housing G, and the swivel bracket SB already mounted on the key body TK into the receiving elements UP, is carried out in a simple manner by inserting the plunger S along its axial direction into the shaft-like opening SOE of the housing G, the rear longitudinal edge HLK of the key body TK covering the ridges SP of both sliding bevels AGS.
- the plunger S presses against the spring element FE and the axle socket AS slide between the sliding surfaces GLF and their retaining tabs NA in the direction of the front longitudinal edge VLK of the key body TK. If the pushbutton is left blank, the spring element FE brings the key body TK back to the rest position.
- the plunger S can be designed as a circular cylinder, on the outside of which two diametrically opposite axial guide webs FST are formed. Associated with the guide webs FST, longitudinal grooves are embedded in the inner wall of the shaft-like opening SOE, in which the guide webs FST are axially displaceable.
- the plunger also has two diametrically opposed, radially outwardly projecting snap hooks SH which get caught in the shaft-like guide opening SOE and prevent the key body TK from falling out.
- an auxiliary plunger HS parallel to the plunger S is fastened to the key body TK.
- auxiliary tappets HS two standing, parallel, mutually parallel shaft walls SW spaced in the transverse direction to the key body TK and aligned in the longitudinal direction to the key body TK are attached to the base plate GP.
- the respective auxiliary tappet HS moves between these shaft walls when the pushbutton DT is pressed. However, it only touches the shaft walls SW when the key body TK is subjected to an extreme torque acting around the tappet axis.
- the auxiliary plunger HS serve to support the two ends of the key body TK on the base plate GP.
Abstract
Description
Die Erfindung betrifft eine Drucktaste nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a push button according to the preamble of claim 1.
Aus der DE-OS 34 33 743 ist eine Drucktaste mit einem langegestreckten Tastenkörper bekannt, an dem im Bereich seiner beiden Enden ein Schwenkbügel angelenkt ist.From DE-OS 34 33 743 a push button with an elongated button body is known, on which a swivel bracket is articulated in the region of its two ends.
Beim Betätigen der Drucktaste an einem Tastenkörperende überträgt der Schwenkbügel einen Teil der Betätigungskraft auf das gegenüberliegende Ende des Tastenkörpers. Dadurch wird ein Kippen des Tastenkörpers verhindert, das ein Verkanten des mit dem Tastenkörper verbundenen Stößels in dessen Führung verursachen würde, wodurch letztlich die Funktion der Drucktaste gestört wäre.When the push button is pressed at one end of the key body, the swivel bracket transfers part of the actuating force to the opposite end of the key body. This prevents the key body from tilting, which would cause the tappet connected to the key body to tilt in its guide, which would ultimately disrupt the function of the pushbutton.
Um eine Betätigungskraft auf das jeweilige andere Ende des Tastenkörpers übertragen zu können, ist der Schwenkbügel in Aufnahmeelementen an einer feststehenden Grundplatte gegengelagert, wobei aus Gründen eines modularen Aufbaus die Aufnahmeelemente meistens innerhalb der von dem Tastenkörper überdeckten Grundplattenfläche angeordnet sind.In order to be able to transmit an actuating force to the respective other end of the key body, the swivel bracket is counter-mounted in receiving elements on a fixed base plate, the receiving elements mostly being arranged within the base plate area covered by the key body for reasons of modular construction.
Insbesondere diese kompakte Bauweise einer derartigen Drucktaste erzwingt eine manuelle Montage, wobei häufig zudem noch geschickte Hände notwendig sind, um den Stößel des Tastenkörpers in seine Führung und zugleich den Schwenkbügel, der bereits am Tastenkörper montiert sein kann, in die Aufnahmeelemente an der Grundplatte einzuführen.In particular, this compact design of such a pushbutton forces manual assembly, and often skillful hands are also necessary to insert the plunger of the button body into its guide and at the same time the swivel bracket, which can already be mounted on the button body, into the receiving elements on the base plate.
Die Aufgabe dieser Erfindung ist es daher, eine Drucktaste obengenannter Art so weiterzubilden, daß ihre Montage in einfacher Weise und mit geringem Aufwand maschinell möglich ist.The object of this invention is therefore to develop a push button of the type mentioned above so that it can be assembled mechanically in a simple manner and with little effort.
Gelöst wird die Aufgabe erfindungsgemäß durch die im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmale.The object is achieved according to the invention by the features specified in the characterizing part of patent claim 1.
Eine derartige, mit Abgleitschrägen versehene Drucktaste wird durch eine einzige eindimensionale Bewegung montiert, die schon mit einer einfachen Vorrichtung maschinell ausgeführt werden kann. Die erfindungsgemäße Drucktaste ist somit bei der Montage wie eine Drucktaste ohne Schwenkbügel zu behandeln.Such a pushbutton provided with sliding bevels is assembled by a single one-dimensional movement, which can be carried out mechanically with a simple device. The push button according to the invention is thus to be treated like a push button without swivel bracket during assembly.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous developments of the invention result from the subclaims.
Durch einen konkaven Verlauf der Abgleitschräge ergibt sich eine günstige Verteilung der auf die zweite Bügelachse einwirkenden Kraftkomponenten, da die eigentliche Abdrängung der zweiten Bügelachse erst dann erfolgt, wenn der Stößel des Tastenkörpers bereits sicher im Gehäuse geführt wird.A concave course of the sliding bevel results in a favorable distribution of the force components acting on the second bracket axis, since the actual displacement of the second bracket axis only takes place when the plunger of the key body is already securely guided in the housing.
Daß die erste Bügelachse am Tastenkörper nur drehbar und die zweite Bügelachse in den Aufnahmeelementen drehbar und verschiebbar gelagert ist, bringt beim Montieren der Drucktaste zum einen den Vorteil, daß die erste Bügelachse sich immer in einer definierten Position am Tastenkörper befindet und zum andern daß eine Lagerung, die Bewegungen in einer Ebene zuläßt, wie es für eine Verschiebung der zweiten Bügelachse notwendig ist, sich eher für ein automatisches Zuführen einer Achse eignet.The fact that the first bracket axis is only rotatable on the key body and the second bracket axis is rotatably and displaceably mounted in the receiving elements has the advantage when mounting the push button that the first bracket axis is always in a defined position on the key body and on the other hand that storage , which allows movements in one plane, as is necessary for a displacement of the second bracket axis, is more suitable for an automatic feeding of an axis.
Die Ausgestaltung der Aufnahmeelemente ermöglicht im Zusammenhang mit einer Abgleitschräge ein kontinuierliches und reibungsloses Einführen der zweiten Bügelachse, ebenso wie ein problemloses und widerstandsarmes Ausgleiten der zweiten Bügelachse aus den Aufnahmeelementen bei einer eventuellen Demontage der Drucktaste.The design of the receiving elements in connection with a sliding slope enables a continuous and smooth insertion of the second bracket axis, as well as a problem-free and low-resistance sliding of the second bracket axis from the receiving elements when the push button is possibly removed.
Die Ausgestaltung der zweiten Bügelachse in Form voneinander beabstandeter Achsstutzen macht es meist erst möglich, die Abgleitschrägen und die Aufnahmeelemente innerhalb der von dem Tastenkörper überdeckten Grundfläche anzuordnen, da dann ein zwischen den freien Enden der Achsstutzen angeordnetes Gehäuse der zweiten Bügelachse beim Einführen in die Aufnahmeelemente nicht im Wege steht.The design of the second stirrup axis in the form of spaced-apart axle supports usually makes it possible to make the sliding bevels and to arrange the receiving elements within the base area covered by the key body, since then a housing arranged between the free ends of the axle stub does not stand in the way of the second bracket axis when it is inserted into the receiving elements.
Ein Ausführungsbeispiel wird im folgenden anhand der Zeichnung näher erläutert.An embodiment is explained below with reference to the drawing.
Dabei zeigen
- FIG 1
- einen Längsschnitt der Drucktaste
- FIG 2
- einen Querschnitt der Drucktaste längs der Linie II-II nach FIG 1
- FIG. 1
- a longitudinal section of the push button
- FIG 2
- a cross section of the push button along the line II-II of FIG. 1
In der FIG 1 ist eine auf einer horizontalen Grundplatte GP angeordnete Drucktaste DT dargestellt, die sich im wesentlichen aus einem Gehäuse G, einem langgestreckten Tastenkörper TK und einem Schwenkbügel SB zusammensetzt. Das auf der Grundplatte GP befestigte Gehäuse G weist eine schachtartige Öffnung SOE auf, die senkrecht zur Grundplatte GP auf ein im Innern des Gehäuses G befindliches Federelement FE gerichtet ist. Über dem Gehäuse G erstreckt sich der mit seiner Längsrichtung parallel zur Grundplatte GP angeordnete Tastenkörper TK. Auf halber Länge weist er einen zylinderförmigen, rechtwinklig zur Grundplatte GP abstehenden Stößel S auf, der in der schachtartigen Öffnung SOE des Gehäuses G axial geführt ist und mit seinem Ende SE auf das Federelement FE drückt.1 shows a pushbutton DT arranged on a horizontal base plate GP, which essentially consists of a housing G, an elongated key body TK and a swivel bracket SB. The housing G fastened on the base plate GP has a shaft-like opening SOE, which is directed perpendicular to the base plate GP onto a spring element FE located in the interior of the housing G. The key body TK, which is arranged with its longitudinal direction parallel to the base plate GP, extends over the housing G. At half its length, it has a cylindrical plunger S projecting at right angles to the base plate GP, which is axially guided in the shaft-like opening SOE of the housing G and presses with its end SE onto the spring element FE.
Im Bereich seiner beiden Enden ist der Tastenkörper TK jeweils mit einem Lagerelement LE versehen, in dem eine erste Bügelachse EBA des Schwenkbügels SB parallel zur Längsrichtung des Tastenkörpers TK so gelagert wird, daß sie um ihre eigene Achse drehbar ist.In the area of its two ends, the key body TK is each provided with a bearing element LE, in which a first bracket axis EBA of the swivel bracket SB is mounted parallel to the longitudinal direction of the button body TK so that it can be rotated about its own axis.
Der Schwenkbügel SB setzt sich aus der ersten Bügelachse EBA und einer zu dieser parallelen zweiten Bügelachse ZBA zusammen. Diese zweite Bügelachse ZBA, ihr Verlauf ist durch eine unterbrochene Linie angedeutet, besteht aus zwei voneinander beabstandeten Achsstutzen AS, die jeweils mit einem Ende über ein Verbindungselement VE starr mit einem zugeordneten Ende der ersten Bügelachse EBA verbunden sind und die mit ihren freien Enden zueinander zeigen. Der Schwenkbügel kann somit auf einfache Weise aus einem einzigen Stück Draht geformt sein.The swivel bracket SB is composed of the first bracket axis EBA and a second bracket axis ZBA parallel to this. This second bracket axis ZBA, the course of which is indicated by a broken line, consists of two spaced-apart axle connectors AS, each of which is rigidly connected at one end via a connecting element VE to an assigned end of the first bracket axis EBA and which point towards one another with their free ends . The swivel bracket can thus be easily formed from a single piece of wire.
Beide Achsstutzen AS ruhen in zugeordneten Aufnahmeelementen AUF, die auf der Grundplatte GP befestigt sind. Vor den Aufnahmeelementen AUF ist jeweils noch eine Abgleitschräge AGS für den betreffenden Achsstutzen AS angebracht.Both axle supports AS rest in assigned receiving elements UP, which are fastened on the base plate GP. In front of the receiving elements AUF there is a sliding slope AGS for the relevant axle socket AS.
In FIG 2 sind im Querschnitt der Tastenkörper TK und ein Aufnahmeelement AUF mit zugehöriger Abgleitschräge AGS dargestellt.2 shows in cross section the key body TK and a receiving element AUF with associated slip slope AGS.
Der Tastenkörper TK, dessen Stößel S zusammen mit dem Gehäuse G ebenfalls angedeutet ist, zeigt eines der Lagerelemente LE für die erste Bügelachse EBA, die innerhalb des Tastenkörpers TK entlang seiner hinteren Längskante HLK verläuft.The key body TK, whose plunger S is also indicated together with the housing G, shows one of the bearing elements LE for the first bracket axis EBA, which runs inside the key body TK along its rear longitudinal edge HLK.
Die Lagerelemente LE bestehen in einfacher Weise jeweils aus einem Quersteg mit einer Bohrung und einer Einschnappöffnung EOE zur problemlosen Aufnahme der ersten Bügelachse EBA.The bearing elements LE each consist in a simple manner of a crossbar with a bore and a snap-in opening EOE for the problem-free reception of the first bracket axis EBA.
Die zweite Bügelachse ZBA ist der vorderen Längskante VLK des Tastenkörpers TK zugeordnet und verläuft unterhalb dieser in den Aufnahmeelementen AUF an der Grundplatte GP.The second bracket axis ZBA is assigned to the front longitudinal edge VLK of the key body TK and runs below it in the receiving elements AUF on the base plate GP.
Die Aufnahmeelemente AUF bestehen jeweils aus einer streifenförmigen in Querrichtung zum Tastenkörper TK ausgerichteten und parallel zur Grundplatte GP verlaufenden Gleitfläche GLF, die von einer parallelen, mit ihrem freien Ende in Querrichtung zum Tastenkörper TK auf die Abgleitschräge AGS zeigenden Haltenase NA überdeckt ist. Zwischen der Gleitfläche GLF und der Haltenase NA befindet sich der jeweilige Achsstutzen AS, der um seine eigene Achse drehbar und in Querrichtung zum Tastenkörper TK verschiebbar ist.The receiving elements AUF each consist of a strip-shaped sliding surface GLF which is oriented in the transverse direction to the key body TK and runs parallel to the base plate GP and which has a parallel retaining lug with its free end in the transverse direction to the key body TK pointing towards the sliding slope AGS NA is covered. Between the sliding surface GLF and the retaining lug NA is the respective axle socket AS, which can be rotated about its own axis and displaced in the transverse direction to the key body TK.
Die den Aufnahmeelementen AUF jeweils vorgelagerte Abgleitschräge AGS befindet sich mit ihrem Grat SP unterhalb der ersten Bügelachse EBA. Die Abgleitschrägen AGS fallen von ihrem jeweiligem Grat SP in einem konkaven Bogen zur Gleitfläche GF des jeweiligen Aufnahmeelementes AUF ab und gehen in die Gleitfläche stufenlos über.The sliding slope AGS upstream of the receiving elements AUF is located with its ridge SP below the first bracket axis EBA. The slip bevels AGS fall from their respective ridges SP in a concave arc to the sliding surface GF of the respective receiving element UP and pass smoothly into the sliding surface.
Das Montieren der Drucktaste DT, das sich darauf beschränkt, den Stößel des Tastenkörpers TK in das Gehäuse G, und den an dem Tastenkörper TK bereits montierten Schwenkbügel SB in die Aufnahmeelemente AUF einzuführen, erfolgt in einfacher Weise durch Einführen des Stößels S entlang seiner axialen Richtung in die schachtartige Öffnung SOE des Gehäuses G, wobei die hintere Längskante HLK des Tastenkörpers TK die Grate SP beider Abgleitschrägen AGS überdeckt.The pushbutton DT, which is limited to inserting the plunger of the key body TK into the housing G, and the swivel bracket SB already mounted on the key body TK into the receiving elements UP, is carried out in a simple manner by inserting the plunger S along its axial direction into the shaft-like opening SOE of the housing G, the rear longitudinal edge HLK of the key body TK covering the ridges SP of both sliding bevels AGS.
Durch Absenken des Tastenkörpers in der zum Stößel S axialen Richtung gleitet dieser in die schachtartige Öffnung SOE ein, und die Achsstutzen AS berühren die Abgleitschrägen AGS im Bereich ihrer Grate SP. Beim weiteren Absenken des Tastenkörpers TK werden die Achsstutzen AS von den Abgleitschrägen AGS aus ihrer Hängelage zur vorderen Längskante VLK des Tastenkörpers TK hin abgedrängt. Die Achsstutzen AS gleiten dabei an den Abgleitschrägen AGS entlang auf die Gleitflächen GLF der Aufnahmeelemente AUF, womit die Drucktaste TD montiert ist und ihre Ruhelage einnimmt.By lowering the key body in the axial direction of the plunger S, it slides into the shaft-like opening SOE, and the axle stubs AS touch the sliding bevels AGS in the area of their ridges SP. When the key body TK is lowered further, the axle supports AS are pushed away from the sloping surfaces AGS from their hanging position towards the front longitudinal edge VLK of the key body TK. The axle stubs AS slide along the sliding bevels AGS along the sliding surfaces GLF of the receiving elements UP, with which the push button TD is mounted and assumes its rest position.
Beim Betätigen der Drucktaste DT drückt der Stößel S gegen das Federelement FE und die Achsstutzen AS gleiten zwischen den Gleitflächen GLF und deren Haltenasen NA in Richtung zur vorderen Längskante VLK des Tastenkörpers TK. Wird die Drucktaste logelassen, bringt das Federelement FE den Tastenkörper TK wieder in die Ruhelage zurück.When the pushbutton DT is pressed, the plunger S presses against the spring element FE and the axle socket AS slide between the sliding surfaces GLF and their retaining tabs NA in the direction of the front longitudinal edge VLK of the key body TK. If the pushbutton is left blank, the spring element FE brings the key body TK back to the rest position.
Um eine leichtgängige Drucktaste DT mit einem gut geführten Tastenkörper TK zu erzielen, können zusätzliche Maßnahmen getroffen werden, die im folgenden unter Zuhilfenahme der FIG 1 erläutert werden.In order to achieve a smooth-running pushbutton DT with a well-guided key body TK, additional measures can be taken, which are explained below with the aid of FIG. 1.
So kann der Stößel S als Kreiszylinder ausgeführt sein, an dessen Außenseite zwei diametral gegenüberliegende axiale Führungsstege FST angeformt sind. Den Führungsstegen FST zugeordnet, sind an der Innenwand der schachtartigen Öffnung SOE Längsnuten eingelassen, in denen die Führungsstege FST axial verschiebbar sind.The plunger S can be designed as a circular cylinder, on the outside of which two diametrically opposite axial guide webs FST are formed. Associated with the guide webs FST, longitudinal grooves are embedded in the inner wall of the shaft-like opening SOE, in which the guide webs FST are axially displaceable.
Auf diese Weise ist eine gute Tastenkappenführung mit geringen Reibungskräften realisierbar, da der Stößel S das Gehäuse G nur mit seinen Führungsstegen FST berührt. Auch ein Verdrehen des Tastenkörpers TK um die Achse des Stößels S wird dadurch verhindert.In this way, a good key cap guidance with low frictional forces can be realized, since the plunger S only touches the housing G with its guide webs FST. This also prevents the key body TK from rotating about the axis of the plunger S.
Der Stößel weist außerdem zwei diametral gegenüberliegende radial nach außen abstehende Schnapphaken SH auf, die sich in der schachtartigen Führungsöffnung SOE verhaken und ein Herausfallen des Tastenkörpers TK verhindern.The plunger also has two diametrically opposed, radially outwardly projecting snap hooks SH which get caught in the shaft-like guide opening SOE and prevent the key body TK from falling out.
Zwischen dem Stößel S und den beiden Lagerelementen LE ist am Tastenkörper TK jeweils ein zum Stößel S paralleler Hilfsstößel HS befestigt. Diesen Hilfsstößeln HS zugeordnet, sind auf der Grundplatte GP jeweils zwei stehende, zueinander parallele, in Querrichtung zum Tastenkörper TK beabstandete und in Längsrichtung zum Tastenkörper TK ausgerichtete Schachtwände SW angebracht. Zwischen diesen Schachtwänden bewegt sich der jeweilige Hilfsstößel HS beim Betätigen der Drucktaste DT. Er berührt die Schachtwände SW jedoch nur dann, wenn der Tastenkörper TK einem extremen, um die Stößelachse wirkenden Drehmoment ausgesetzt wird. Zudem dienen die Hilfsstößel HS zum Abstützen der beiden Enden des Tastenkörpers TK auf der Grundplatte GP.Between the plunger S and the two bearing elements LE, an auxiliary plunger HS parallel to the plunger S is fastened to the key body TK. Associated with these auxiliary tappets HS, two standing, parallel, mutually parallel shaft walls SW spaced in the transverse direction to the key body TK and aligned in the longitudinal direction to the key body TK are attached to the base plate GP. The respective auxiliary tappet HS moves between these shaft walls when the pushbutton DT is pressed. However, it only touches the shaft walls SW when the key body TK is subjected to an extreme torque acting around the tappet axis. In addition, the auxiliary plunger HS serve to support the two ends of the key body TK on the base plate GP.
Claims (7)
- Pushbutton key (DT), preferably for a key field of a keyboard having a casing (G) arranged on a baseplate (GP) and having an elongated key body (TK) which is arranged parallel to the baseplate (GP) in its longitudinal direction and is connected to a plunger (S) that points towards the baseplate (GP) and is axially guided by the casing (G), and to which a swivel bow (SB) is fastened, which has two bow axes parallel to the longitudinal direction that are held at a fixed distance from one another by connecting elements (VE), the first bow axis (EBA) of which is mounted on the key body (TK) and the second bow axis (ZBA) of which is mounted in holding elements (AUF) on the baseplate (GP), characterised in that there is provided on the baseplate (GP) at least one slanting slide (AGS) which pushes the second bow axis (ZBA) during insertion of the plunger (S) into the casing (G) out of its suspended position in the transverse direction of the key body (TK) and leads it to the holding elements (AUF).
- Pushbutton key according to Claim 1, characterised in that the slanting slide (AGS) is designed to be concave and falls away in the transverse direction of the key body (TK) towards the holding elements (AUF).
- Pushbutton key according to Claim 1, characterised in that there are provided on the key body (TK) mounting elements (LE) in which the first bow axis (EBA) is mounted so as to be pivotable about its own fixed axis, and in that the second bow axis (ZBA) is mounted in the holding elements (AUF) so as to be pivotable about its own axis and displaceable in the transverse direction to the key body (TK).
- Pushbutton key according to Claim 3, characterised in that the holding elements (AUF) have a horizontal gliding plane (GLF) and a retaining lip (NA) in each case, and in that the retaining lips (NA) are directed with their free ends in the transverse direction to the key body (TK) towards the slanting slide (AGS) and project beyond the second bow axis (ZBA) resting on the gliding plane (GLF).
- Pushbutton key according to one of the preceding claims, characterised in that a slanting slide (AGS) is arranged before each holding element (AUF).
- Pushbutton key according to one of the preceding claims, characterised in that the second bow axis (ZBA) is composed of at least two sleeve bearings (AS) spaced apart from one another.
- Pushbutton key according to one of the preceding claims, characterised in that there are arranged on the key body (TK) auxiliary plungers (HS) which are guided in each case between two mutually parallel shaft walls (SW) standing on the baseplate (GP) and aligned in the longitudinal direction to the key body (TK).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88113626T ATE75342T1 (en) | 1987-08-24 | 1988-08-22 | PUSH BUTTON. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3728199 | 1987-08-24 | ||
| DE3728199 | 1987-08-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0304847A1 EP0304847A1 (en) | 1989-03-01 |
| EP0304847B1 true EP0304847B1 (en) | 1992-04-22 |
Family
ID=6334372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88113626A Expired - Lifetime EP0304847B1 (en) | 1987-08-24 | 1988-08-22 | Press key |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0304847B1 (en) |
| AT (1) | ATE75342T1 (en) |
| DE (1) | DE3870361D1 (en) |
| ES (1) | ES2032507T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19940051C1 (en) * | 1999-08-24 | 2000-11-16 | Siemens Pc Systeme Gmbh & Co K | Push-button keyboard housing |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3824980A1 (en) * | 1988-07-22 | 1990-01-25 | Cherry Mikroschalter Gmbh | SUPPORT MECHANICS FOR MULTIPLE BUTTON HEADS |
| DE4022917A1 (en) * | 1990-07-19 | 1992-01-23 | Triumph Adler Ag | KEYBOARD FOR A TYPEWRITER OR THE LIKE |
| DE4425154C1 (en) * | 1994-07-16 | 1995-10-19 | Valeo Borg Instr Verw Gmbh | Push-button actuated switch with elongated pushbutton and transmission lever |
| DE102004008613B4 (en) * | 2004-02-21 | 2013-10-17 | Robert Bosch Gmbh | Button with shift lever |
| DE102008022549A1 (en) * | 2008-04-30 | 2009-11-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Actuation device for switching double clutch-transmission of steering wheel of motor vehicle, has bracket arranged around one rotation axis in swivelable manner at connection elements and around another rotation axis at fixed support plate |
| DE102018121678B4 (en) * | 2018-09-05 | 2020-06-25 | Behr-Hella Thermocontrol Gmbh | Control unit for a vehicle |
| DE102020115847B4 (en) | 2020-06-16 | 2021-12-23 | Behr-Hella Thermocontrol Gmbh | Control unit for a vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3720801A (en) * | 1972-02-03 | 1973-03-13 | Alps Electric Co Ltd | Space key |
| DE3433743A1 (en) * | 1984-09-14 | 1986-03-27 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt | PRINT BUTTON |
| FR2606930B1 (en) * | 1986-11-14 | 1989-02-03 | Radiotechnique Compelec | KEYBOARD WITH SPACER BAR |
-
1988
- 1988-08-22 DE DE8888113626T patent/DE3870361D1/en not_active Expired - Lifetime
- 1988-08-22 AT AT88113626T patent/ATE75342T1/en not_active IP Right Cessation
- 1988-08-22 ES ES198888113626T patent/ES2032507T3/en not_active Expired - Lifetime
- 1988-08-22 EP EP88113626A patent/EP0304847B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19940051C1 (en) * | 1999-08-24 | 2000-11-16 | Siemens Pc Systeme Gmbh & Co K | Push-button keyboard housing |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0304847A1 (en) | 1989-03-01 |
| ATE75342T1 (en) | 1992-05-15 |
| ES2032507T3 (en) | 1993-02-16 |
| DE3870361D1 (en) | 1992-05-27 |
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