DE1030909B - Vibration damped contact spring arrangement in switches or the like. - Google Patents
Vibration damped contact spring arrangement in switches or the like.Info
- Publication number
- DE1030909B DE1030909B DEF15950A DEF0015950A DE1030909B DE 1030909 B DE1030909 B DE 1030909B DE F15950 A DEF15950 A DE F15950A DE F0015950 A DEF0015950 A DE F0015950A DE 1030909 B DE1030909 B DE 1030909B
- Authority
- DE
- Germany
- Prior art keywords
- strips
- contact spring
- spring arrangement
- switches
- clamped
- 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.)
- Pending
Links
- 239000006260 foam Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 210000002105 tongue Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
- H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Description
DEUTSCHESGERMAN
Streifenförmige, einseitig eingespannte Kontaktfedern haben den Nachteil, daß sie beim Anstoßen und Loslassen flattern. Auch wenn diese Erscheinung meist äußerlich nicht erkennbar .ist, so macht sie sich doch durch unexakte Kontaktgabe mit den bekannten Folgen, insbesondere bei empfindlichen Geräten, unangenehm bemerkbar.Strip-shaped contact springs clamped on one side have the disadvantage that they flutter when bumped and released. Even if this appearance is usually not recognizable externally, it is made through imprecise contact with the known Consequences, especially with sensitive devices, are unpleasantly noticeable.
Erfindungsgemäß sind solche Kontaktfedern auf einer Seite oder auf beiden Seiten mit aufgeklebten Streifen aus elastischem Material, insbesondere Schaumgummi oder Schaumkunststoff, versehen, deren plastische Deformation eine Schwingungsdämpfung bewirkt.According to the invention, such contact springs are glued on on one side or on both sides Strips of elastic material, in particular foam rubber or foam plastic, provided, whose plastic deformation causes vibration damping.
Es ist zwar bereits vorgeschlagen worden, gegen die Unterseite eines einseitig eingespannten, von der Oberseite beaufschlagten Kontaktfederstreifens ein an beiden Enden eingespanntes Gummiband anzulegen, das nicht nur die in dem Federstreifen beim Auftreffen und Zurückgehen des Gegenkontaktes entstehenden Schwingungen dämpft, sondern auch die Rückführung und Anlage desselben gegen einen ortsfesten Anschlag bewirkt. Für das Gummiband, das also gleichzeitig zwei Funktionen erfüllt, sind Einspannvorrichtungen an beiden Enden und außerdem Mittel zur Spannregulierung erforderlich. Demgegenüber ist die Erfindung in baulicher Hinsicht wesentlich einfacher und auch wirksamer, da bei der Beaufschlagung der Federstreifen von vornherein- das Auftreten von Schwingungen unterdrückt wird. Es ist ferner bekannt, zu beiden Seiten eines dünnen Kontaktfederstreifens, desesn geringe Stärke allein nicht die notwendige Federkraft ergeben würde, Stützfedern anzuordnen, die eine gewisse schwingungsdämpfende Wirkung ausüben können. In diesem Falle besteht also das federnde Element aus der Summe der drei genannten Bestandteile, ist also konstruktiv umständlicher. Es ist noch vorgeschlagen worden, Rückschwingungen einer von einem Magnetanker beaufschlagten Kontaktbrücke durch einen darunter angeordneten Schaumstreifen abzufangen. Derselbe wird hier jedoch einfach durch den senkrecht auf ihn ausgeübten Druck zusammengepreßt, während bei der vorliegenden Erfindung der Schaumgummi- oder Scbaumkunststoffstreifen ohne Kompression lediglich durch die in ihm bei der Krümmung oder Streckung des Kontaktfederstreifens auftretenden Schubkräfte schwingungsdämpfend wirkt.Although it has already been proposed, against the underside of a cantilevered, of the Apply a rubber band clamped at both ends of the contact spring strip on the upper side, not only that which arises in the spring strip when the mating contact hits and retreats Vibrations damps, but also the return and installation of the same against a stationary one Stop causes. For the rubber band, which thus fulfills two functions at the same time, there are clamping devices at both ends and also means for tension adjustment required. In contrast the invention is much simpler in structural terms and also more effective, since when it is applied the spring strip from the outset - the occurrence of vibrations is suppressed. It is also known, on both sides of a thin contact spring strip, not desesn low strength alone the necessary spring force would result in arranging support springs that have a certain vibration-damping effect Can have an effect. In this case, the resilient element consists of the sum of the three components mentioned, is so constructively cumbersome. It has still been suggested to reverse vibrations a contact bridge acted upon by a magnet armature through a contact bridge arranged below it To catch foam strips. The same thing is here, however, simply due to that which is exercised perpendicularly on it Compressed pressure, while in the present invention the foam rubber or Tree plastic strips without compression simply by being in it when bending or stretching of the contact spring strip occurring shear forces acts vibration-dampening.
Die Zeichnung zeigt die Erfindung in verschiedenen Ausführungsformen. Gemäß Fig. 1 ist mit 1 ein einzelner Kontaktfederstreifen bezeichnet, der am rechten Ende in dem mehrschichtigen Isölierstoffblöckchen 2 eingespannt und auf beiden Seiten mit elastischen Auflagen 3, 3', vorzugsweise angeklebten Schaumstoffstreifen, versehen ist. Derartige schwingungs-Schwingungsgedämpfte The drawing shows the invention in various embodiments. According to FIG. 1, 1 is a single Contact spring strip referred to, which at the right end in the multi-layer insulating material block 2 clamped and on both sides with elastic pads 3, 3 ', preferably glued on foam strips, is provided. Such vibration-damped vibrations
KontaktfederanordnungContact spring arrangement
in Schaltern od. dgl.in switches or the like.
Anmelder:Applicant:
Paul Firchow Nachfgr.
Apparate- und Uhren-FabrikPaul Firchow Nachfgr.
Apparatus and clock factory
Aktienges ellschaft,
Frankfurt/M., Baseler Str. 27-31Stock corporation ,
Frankfurt / M., Baseler Str. 27-31
Dr.-Ing. Harry Weissmann, Hannover,
ist als Erfinder genannt wordenDr.-Ing. Harry Weissmann, Hanover,
has been named as the inventor
gedämpfte Federstreifen können in Schaltern, Relais, Schützen od. dgl. Verwendung finden; einer besonderen Veranschaulichung bedarf es hierfür nicht.Damped spring strips can be used in switches, relays, contactors or the like. a special one No illustration is required for this.
Fig. 2 zeigt eine weitere Ausführungsform der Erfindung, wonach die Kontaktfedern aus je zwei parallel gerichteten Metallstreifen 11 mit dazwischen befindlicher Schicht 13 aus elastischem Material bestehen. Bei einer Verbiegung der Federn durch Anstoßen erfolgt eine Parallelvenscbiebung der beiden Metallstreifen und eine Schubbeanspruchung bzw. -Verformung der elastischen Zwischenschichten.Fig. 2 shows a further embodiment of the invention, according to which the contact springs of two in parallel directed metal strips 11 with an intermediate layer 13 made of elastic material. If the springs are bent by bumping into them, the two will move in parallel Metal strips and a shear stress or deformation of the elastic intermediate layers.
Während bei dieser Ausführungsform die in dem mehrschichtigen Isölierstoffblöckchen 12 eingespannten Enden der Federstreifen abgekröpft sind, so daß die elastischen Zwischenschichten schon vor der Einspannstelle enden, reichen bei der Ausführungsform nach Fig. 3 die elastischen Zwischenschichten 23 bis an die Zungen 22' des Isolierblöckchens 22 heran, in welchem die Enden der Federstreifen 21 parallel zueinander eingespannt sind. Hierdurch wird ein Flattern der Federn besonders wirksam unterdrückt.While in this embodiment the clamped in the multi-layer insulating material blocks 12 Ends of the spring strips are bent so that the elastic intermediate layers before the clamping point end, extend in the embodiment according to FIG. 3, the elastic intermediate layers 23 to to the tongues 22 'of the insulating block 22, in which the ends of the spring strips 21 are parallel to each other are clamped. Fluttering of the springs is particularly effectively suppressed as a result.
Claims (4)
Britische Patentschrift Nr. 694 703.Considered publications:
British Patent No. 694,703.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF15950A DE1030909B (en) | 1954-10-22 | 1954-10-22 | Vibration damped contact spring arrangement in switches or the like. |
| DE1958F0015803 DE1781464U (en) | 1954-10-22 | 1958-11-18 | ELECTRIC SWITCH WITH VIBRATION DAMPENED CONTACT SPRINGS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF15950A DE1030909B (en) | 1954-10-22 | 1954-10-22 | Vibration damped contact spring arrangement in switches or the like. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1030909B true DE1030909B (en) | 1958-05-29 |
Family
ID=7088059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEF15950A Pending DE1030909B (en) | 1954-10-22 | 1954-10-22 | Vibration damped contact spring arrangement in switches or the like. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1030909B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033965A (en) * | 1962-05-08 | Chatter-free sealed-in contacts | ||
| FR2304832A1 (en) * | 1975-03-19 | 1976-10-15 | Reiter Lothar | MECHANICAL SYSTEM WITH VIBRATIONS DAMPED BY AUXILIARY MASSES |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694703A (en) * | 1951-11-26 | 1953-07-22 | British Tabulating Mach Co Ltd | Improvements in or relating to electrical contact devices |
-
1954
- 1954-10-22 DE DEF15950A patent/DE1030909B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB694703A (en) * | 1951-11-26 | 1953-07-22 | British Tabulating Mach Co Ltd | Improvements in or relating to electrical contact devices |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3033965A (en) * | 1962-05-08 | Chatter-free sealed-in contacts | ||
| FR2304832A1 (en) * | 1975-03-19 | 1976-10-15 | Reiter Lothar | MECHANICAL SYSTEM WITH VIBRATIONS DAMPED BY AUXILIARY MASSES |
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