EP1627394B1 - Haptic limitation of a step switch or a potentiometer - Google Patents
Haptic limitation of a step switch or a potentiometer Download PDFInfo
- Publication number
- EP1627394B1 EP1627394B1 EP04734829A EP04734829A EP1627394B1 EP 1627394 B1 EP1627394 B1 EP 1627394B1 EP 04734829 A EP04734829 A EP 04734829A EP 04734829 A EP04734829 A EP 04734829A EP 1627394 B1 EP1627394 B1 EP 1627394B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leg
- annular
- leg spring
- housing
- recess
- 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
Links
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 5
- 229920006324 polyoxymethylene Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- -1 polyoxymethylene Polymers 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/14—Adjustable resistors adjustable by auxiliary driving means
Definitions
- the invention relates to an annular, cylindrical housing with an annular groove for receiving a leg spring, in particular for use in a tap changer or a potentiometer.
- leg spring in a potentiometer is from the DE 33 07 827 A1 known.
- a leg spring which engages a pin in the potentiometer axis, is secured to the shaft guide of the potentiometer, while the leg spring returns the deflected potentiometer to a specified neutral position.
- Both legs of the leg spring point radially outward and enclose a pin, which is in communication with the thumbwheel for adjusting the potentiometer.
- the leg spring is firmly connected to the Potentiometer uman, so that when turning the knurled one leg of the leg spring is tensioned and thus generates a voltage that moves the knurled back to the starting position. To mount the leg spring this is pushed over the Potentiometeritati and at a correspondingly selected leg distance of the leg springs a backlash-free seat on the pin of the thumb wheel is possible.
- the adjustable resistor which has a coil spring for recovery, is in the DE 34 44 229 disclosed.
- the adjustable resistor has a rotor which has at least two mutually parallel, axially parallel, hollow cylindrical rotor walls. Between these rotor walls engage at least two nested hollow cylindrical cover walls of a lid attached to a GeHouseunterteit. There is an annular space between the two cover walls of the rotor and the lower part of the housing.
- a coil spring is arranged, which is fastened with its one end to the cover and with its other end to the rotor. It serves to return the rotor. When mounting the coil spring, this is inserted into the annular space of the lid and pushed into the rotor.
- the US 4,430,634 describes a rotary potentiometer having a coil spring for recovery.
- the coil spring is guided at one end with an arm in a slot of the housing and the other end of the coil spring cooperates with the shaft of the potentiometer, so that a reset of the actuator arm and the drive arm is made possible in the starting position.
- the invention is based on the object to develop a further annular, cylindrical housing for receiving a leg spring, in which the leg spring is easy to insert and assemble.
- leg spring is inserted into the annular groove of an annular, cylindrical housing, for example a potentiometer, that consists of an outer groove wall with a recess for receiving the upper leg of the leg spring and an inner groove wall, wherein the housing with an axially obliquely downward extending recess is provided for receiving the lower leg of the leg spring, so that after insertion against the axially obliquely downwardly extending recess lower leg of the leg spring is simultaneously radially and axially clamped by the biasing means of the upper leg.
- an annular, cylindrical housing for example a potentiometer, that consists of an outer groove wall with a recess for receiving the upper leg of the leg spring and an inner groove wall, wherein the housing with an axially obliquely downward extending recess is provided for receiving the lower leg of the leg spring, so that after insertion against the axially obliquely downwardly extending recess lower leg of the leg spring is simultaneously radially and axially clamp
- FIG. 1 a housing 1 for receiving a leg spring consisting of an outer groove wall 2 and an inner groove wall 3 is shown.
- the outer groove wall 2 and the inner groove wall 3 define an annular groove 4 of the housing 1.
- a stop 6 At the end of the slope of the recess 5 is a stop 6.
- a recess 7 is incorporated, which extends over a limited angular range of the outer groove wall 2.
- the leg spring 8 has two oppositely bent legs 9, 10.
- the upper leg 9 is bent radially outward and the lower leg 10 radially inwardly.
- the length of the legs 9, 10 are limited according to their functions.
- the lower leg 10 corresponds in its length approximately to the width of the inner groove wall 3.
- the upper leg 9 of the leg spring 8 is longer than the width of the groove wall 2, so that the upper leg 9 protrudes beyond the outer groove wall 2. The over the outer groove wall 2 protruding end of the leg 9, thus can be detected by a driver and a torque can be generated.
- housing 1 and leg spring 8 can be used for example in a potentiometer or tap changer, not shown.
- the upper leg 9 generates depending on the bias of the leg spring 8 in the housing 1, a more or less large torque. Since the invention is mostly used in manually operated switches, while a leg spring 8 is used with a rather flat spring characteristic. The aim is to create as even as possible a torque on the rotary knob over the entire adjustment range.
- the housing 1 is mainly made of plastic.
- a preferred material is polyoxymethylene (POM).
- POM polyoxymethylene
- This material (POM) on the one hand has good sliding properties and on the other hand, a low coefficient of friction, so that it is particularly suitable for the stresses of a rotationally actuated spring. POM is also characterized by low wear.
- the leg spring 8 consists of a spring steel. Since the penetration of moisture and moisture can not be excluded, depending on the field of use of the switch, the leg spring 8 is preferably made of stainless steel.
- the length of the cylindrical housing 1 corresponds substantially to the axial length of the leg spring 8, wherein the housing 1 may protrude in areas over the leg spring 8. In particular, in the area of the stop 6, an extension of the housing 1 makes sense, so that the lower leg 10 is guided securely.
- the mean diameter of the leg spring 8 is about 15 mm, but this does not mean that the invention is set to these dimensions. It is also conceivable to use the inventive housing 1 for receiving the leg spring 8 in switches with large dimensions or controls.
- the leg spring 8 is inserted from above in the direction of the arrow P in the annular groove 4 of the housing 1.
- the further assembly sequence is in the FIGS. 2a to 2d shown.
- the upper leg 9 rests on the outer groove wall 2 and the lower leg 10 at the recess of the inner groove wall 3 at.
- the advantage according to the invention and the ease of assembly during preloading are now apparent.
- For biasing the leg spring 8 only the upper leg 9 of the leg spring 8 in the direction of the arrow, in the exemplary embodiment counterclockwise, to be pulled, as in FIG. 2b shown. In this case, the lower leg 10 is guided along the slope 5 and thus biased axially.
- FIG. 2c shows the assembled state and the position of the leg spring 8 in the housing 1.
- the upper leg 9 of the leg spring 8 is now in the recess 7 of the outer groove wall 2.
- the recess 7 can vary over an angular range of 25 ° to 65 °, preferably an angle of 45 ° as the effective range for the upper leg 9 of the leg spring 8 is introduced into the outer groove wall 2.
- leg spring 8 is now radially and axially biased in the housing 1.
- this is performed during assembly only by means of the rotation of the upper leg 9. It is thus possible according to the invention with the simplest means and with minimal cycle times and significantly reduced idle times to clamp the leg spring 8 in the housing 1 radially and axially.
- the invention may serve to return a rotational movement, but it may also cause a torque on a control element, so that the groping operator a sense of the adjustment is mediated to the navein monoen switch or potentiometer.
- the invention can also be used in combination with a fine catch or coarse load or serve at the end of a detent line, for example a multi-stage switch as a torque related limit or end stop.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
- Springs (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Description
Die Erfindung betrifft ein ringförmiges, zylindrisches Gehäuse mit einer Ringnut zur Aufnahme einer Schenkelfeder, insbesondere zum Einsatz in einem Stufenschalter oder einem Potentiometer.The invention relates to an annular, cylindrical housing with an annular groove for receiving a leg spring, in particular for use in a tap changer or a potentiometer.
Der Einsatz einer Schenkelfeder in einem Potentiometer ist aus der
Ein weiterer einstellbarer Widerstand, der eine Schraubenfeder zur Rückstellung aufweist, ist in der
Die
Der Erfindung liegt die Aufgabe zu Grunde, ein weiteres ringförmiges, zylindrisches Gehäuse zur Aufnahme einer Schenkelfeder zu entwickeln, in das die Schenkelfeder leicht einzufügen und zu montieren ist.The invention is based on the object to develop a further annular, cylindrical housing for receiving a leg spring, in which the leg spring is easy to insert and assemble.
Diese Aufgabe wird durch den Gegenstand gemäß Anspruch 1 gelöst; dadurch daß die Schenkelfeder in die Ringnut eines ringförmigen, zylindrischen Gehäuses, beispielsweise eines Potentiometers, eingefügt wird, daß aus einer äußeren Nutwand mit einer Ausnehmung zur Aufnahme des oberen Schenkels der Schenkelfeder und einer inneren Nutwand besteht, wobei das Gehäuse mit einer axial schräg nach unten verlaufenden Ausnehmung versehen ist, zur Aufnahme des unteren Schenkels der Schenkelfeder, so daß der nach dem Einlegen gegen die axial schräg nach unten verlaufende Ausnehmung anliegende untere Schenkel der Schenkelfeder durch das Vorspannen mittels des oberen Schenkels gleichzeitig radial und axial spannbar ist. Durch die Anordnung dieser Ausnehmung mit einer axial nach unten gerichteten Schräge ist nun die Möglichkeit geschaffen, die Schenkelfeder im Gehäuse schnell und einfach zu montieren und diese gleichzeitig durch den Einbau radial und axial vorzuspannen. Am Ende der Schräge, an der der untere Schenkel der Schenkelfeder anliegt, ist ein Anschlag angeordnet, so daß je nach Anordnung des Anschlags, in der inneren oder äußeren Nutwand, die Schenkelfeder mit einer beliebigen Vorspannung versehen werden kann. Hieraus ergibt sich ein weiterer Vorteil, nämlich der, daß für das Vorspannen kein separater Arbeitsschritt notwendig ist und somit die Taktzeit bei der Montage reduziert wird.This object is achieved by the subject matter of
Die Erfindung wird im weiteren anhand eines Ausführungsbeispiels erläutert. Es zeigen
Figur 1- den grundsätzlichen Aufbau eines Ausführungsbeispiels des erfindungsgemäßen Gehäuses mit einer Schenkelfeder und deren Fügerichtung,
- die Figuren 2a bis 2d
- die Montage der Schenkelfeder in das Gehäuse.
- FIG. 1
- the basic structure of an embodiment of the housing according to the invention with a leg spring and its joining direction,
- Figures 2a to 2d
- the assembly of the leg spring in the housing.
In
Die Schenkelfeder 8 besitzt zwei entgegengesetzt gebogene Schenkel 9, 10. In diesem Ausführungsbeispiel ist der obere Schenkel 9 radial nach außen und der untere Schenkel 10 radial nach innen gebogen. Die Länge der Schenkel 9, 10 sind entsprechend ihrer Funktionen begrenzt. Der untere Schenkel 10 entspricht in seiner Länge in etwa der Breite der inneren Nutwand 3. Der obere Schenkel 9 der Schenkelfeder 8 ist länger als die Breite der Nutwand 2, so daß der obere Schenkel 9 über die äußere Nutwand 2 hinausragt. Das über die äußere Nutwand 2 hinausragende Ende des Schenkels 9, kann somit von einem Mitnehmer erfasst und ein Drehmoment erzeugt werden.The
Die erfindungsgemäße Kombination aus Gehäuse 1 und Schenkelfeder 8 kann zum Beispiel in einem nicht näher dargestellten Potentiometer oder Stufenschalter zum Einsatz kommen. Dabei erzeugt der obere Schenkel 9 je nach Vorspannung der Schenkelfeder 8 im Gehäuse 1 ein mehr oder weniger großes Drehmoment. Da die Erfindung zumeist in manuell betätigten Schaltern eingesetzt wird, wird dabei eine Schenkelfeder 8 mit einer eher flachen Federkennlinie eingesetzt. Ziel ist es dabei, über den gesamten Verstellbereich ein möglichst gleichmäßiges Moment am Drehknopf zu erzeugen.The inventive combination of
Das Gehäuse 1 ist vornehmlich aus Kunststoff gefertigt. Ein bevorzugter Werkstoff ist Polyoxymethylen (POM). Dieser Werkstoff (POM) besitzt einerseits gute Gleiteigenschaften und andererseits einen niedrigen Reibungskoeffizienten, so daß er sich besonders für die Beanspruchungen durch eine drehbetätigte Feder eignet. POM zeichnet sich ebenfalls durch einen geringen Verschleiß aus. Die Schenkelfeder 8 besteht aus einem Federstahl. Da je nach Einsatzgebiet des Schalters das Eindringen von Feuchtigkeit und Nässe nicht ausgeschlossen werden kann, wird die Schenkelfeder 8 bevorzugt aus rostfreiem Stahl gefertigt.The
Die Länge des zylindrischen Gehäuses 1 entspricht im wesentlichen der axialen Länge der Schenkelfeder 8, wobei das Gehäuse 1 in Bereichen über die Schenkelfeder 8 hinausragen kann. Insbesondere im Bereich des Anschlags 6 ist eine Verlängerung des Gehäuses 1 sinnvoll, damit der untere Schenkel 10 sicher geführt ist. Der mittlere Durchmesser der Schenkelfeder 8 beträgt ca. 15 mm, was aber nicht bedeutet, daß die Erfindung auf diese Abmessungen festgelegt ist. Es ist ebenso vorstellbar das erfinderische Gehäuse 1 zur Aufnahme der Schenkelfeder 8 bei Schaltern mit großen Abmaßen oder Bedienelementen einzusetzen.The length of the
Entsprechend der
Die Schenkelfeder 8 liegt nun radial und axial vorgespannt im Gehäuse 1. Vorteilhafterweise wird dies während der Montage lediglich mittels des Drehens am oberen Schenkel 9 durchgeführt. Es ist somit erfindungsgemäß möglich mit einfachsten Mitteln und mit minimalen Taktzeiten und erheblich reduzierten Nebenzeiten die Schenkelfeder 8 im Gehäuse 1 radial und axial zu spannen.The
Die Erfindung kann zur Rückstellung einer Drehbewegung dienen, sie kann aber auch ein Drehmoment an einem Bedienelement hervorrufen, so daß dem tastenden Bediener ein Gefühl für die Verstellbewegung an dem dreheinstellbaren Schalter oder Potentiometer vermittelt wird. Die Erfindung kann auch in Kombination mit einer Feinrast oder Grobrast eingesetzt werden oder am Ende einer Raststrecke, zum Beispiel einem mehrstufigen Schalter als Drehmoment bezogene Begrenzung oder Endänschlag dienen.The invention may serve to return a rotational movement, but it may also cause a torque on a control element, so that the groping operator a sense of the adjustment is mediated to the dreheinstellbaren switch or potentiometer. The invention can also be used in combination with a fine catch or coarse load or serve at the end of a detent line, for example a multi-stage switch as a torque related limit or end stop.
Das in den
Claims (8)
- An annular, cylindrical housing (1) with an annular groove (4) for receiving a leg spring (8), in particular for use in a stepping switch or in a potentiometer, consisting of an outer groove wall (2) with a recess (7) for receiving a leg (9) of said leg spring (8) and with an inner wall (3), characterized in that the upper leg (9) is received in said recess (7) of said outer groove wall (2) and that said housing (1) is provided with a recess (5) that extends axially obliquely downward and that a limit stop (6) is disposed at the end of the inclined portion of the recess (5) for receiving the lower leg (10) of said leg spring (8) so that the lower leg (10) of said leg spring (8), which fits against the lower limit stop (6) once placed, may be stressed radially and axially at the same time through the bias by means of the upper leg (9).
- The annular, cylindrical housing as set forth in claim 1, characterized in that the recess (5), which slopes axially downward, is made in the inner groove wall (3).
- The annular, cylindrical housing as set forth in any one of the claims 1 and 2, characterized in that the upper leg (9) projects beyond the outer groove wall (2).
- The annular, cylindrical housing as set forth in any one of the claims 1 through 3, characterized in that the recess extends in the outer groove wall (2) at an angle ranging from 25° to 65°, preferably at an angle of 45°.
- The annular, cylindrical housing as set forth in any one of the claims 1 through 4, characterized in that the length of the housing (1) substantially corresponds to the length of the leg spring (8) measured in the axial direction.
- The annular, cylindrical housing as set forth in any one of the claims 1 through 5, characterized in that the housing (1) is made of plastic material, preferably from polyoxymethylene.
- The annular, cylindrical housing as set forth in any one of the claims 1 through 6, characterized in that the leg spring (8) is made from stainless steel.
- The annular, cylindrical housing as set forth in any one of the claims 1 through 7, characterized in that the leg spring (8) comprises a uniform torque gradient over the entire adjustment region.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10323964A DE10323964B4 (en) | 2003-05-27 | 2003-05-27 | Haptic limit for a tap-changer or potentiometer |
PCT/EP2004/005637 WO2004107366A1 (en) | 2003-05-27 | 2004-05-26 | Haptic limitation of a step switch or a potentiometer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1627394A1 EP1627394A1 (en) | 2006-02-22 |
EP1627394B1 true EP1627394B1 (en) | 2009-07-08 |
Family
ID=33482192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04734829A Expired - Lifetime EP1627394B1 (en) | 2003-05-27 | 2004-05-26 | Haptic limitation of a step switch or a potentiometer |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1627394B1 (en) |
KR (1) | KR20060006093A (en) |
CN (1) | CN100533606C (en) |
DE (2) | DE10323964B4 (en) |
ES (1) | ES2327234T3 (en) |
WO (1) | WO2004107366A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104098317A (en) * | 2014-07-02 | 2014-10-15 | 上海快刻石膏技术有限公司 | Plaster dry blend and use method thereof |
CN105800977A (en) * | 2014-12-31 | 2016-07-27 | 嘉华特种水泥股份有限公司 | Method for improving early strength of sulfoaluminate clinker |
CN107651249A (en) * | 2016-07-26 | 2018-02-02 | 博世包装技术(杭州)有限公司 | Container rotating device and container sealing equipment for container sealing equipment |
CN106630704A (en) * | 2017-01-04 | 2017-05-10 | 济南大学 | Belite-calcium sulphoaluminate cement clinker and preparation method thereof |
CN109279792A (en) * | 2017-07-19 | 2019-01-29 | 北新集团建材股份有限公司 | A method of restoring the gelling of red mud |
ES2728136B2 (en) * | 2018-04-20 | 2021-02-10 | Aragonesa De Componentes Pasivos S A | RETURNABLE CONTROL KNOB |
CN109990024B (en) * | 2019-05-06 | 2020-07-10 | 内蒙古工业大学 | Limiting mechanism with angle larger than plus or minus 180 degrees |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5914840Y2 (en) * | 1980-11-13 | 1984-05-01 | 栄通信工業株式会社 | rotary dial device |
US4430634A (en) * | 1982-01-18 | 1984-02-07 | Cts Corporation | Rotary potentiometer with molded terminal package |
DE3307827A1 (en) * | 1983-03-05 | 1984-09-06 | Robert Bosch Gmbh, 7000 Stuttgart | Potentiometer |
US4616504A (en) * | 1983-05-03 | 1986-10-14 | Duncan Electronics | Throttle position sensor |
DE3444229A1 (en) * | 1984-11-30 | 1986-06-05 | Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt | ADJUSTABLE RESISTANCE |
JP3141647B2 (en) * | 1993-04-15 | 2001-03-05 | 松下電器産業株式会社 | Rotary electronic components |
DE4431455A1 (en) * | 1994-09-03 | 1996-03-07 | Bosch Gmbh Robert | Angular rotation sensor for e.g. electro motor adjustment of throttle valve in IC engine |
US6018992A (en) * | 1999-01-18 | 2000-02-01 | Cts Corporation | Position sensor having termination clip |
-
2003
- 2003-05-27 DE DE10323964A patent/DE10323964B4/en not_active Expired - Fee Related
-
2004
- 2004-05-26 WO PCT/EP2004/005637 patent/WO2004107366A1/en active Application Filing
- 2004-05-26 ES ES04734829T patent/ES2327234T3/en not_active Expired - Lifetime
- 2004-05-26 KR KR1020057022621A patent/KR20060006093A/en not_active Application Discontinuation
- 2004-05-26 EP EP04734829A patent/EP1627394B1/en not_active Expired - Lifetime
- 2004-05-26 CN CNB2004800145221A patent/CN100533606C/en not_active Expired - Fee Related
- 2004-05-26 DE DE502004009722T patent/DE502004009722D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1627394A1 (en) | 2006-02-22 |
DE10323964B4 (en) | 2007-07-12 |
CN1795518A (en) | 2006-06-28 |
ES2327234T3 (en) | 2009-10-27 |
DE10323964A1 (en) | 2004-12-30 |
KR20060006093A (en) | 2006-01-18 |
CN100533606C (en) | 2009-08-26 |
DE502004009722D1 (en) | 2009-08-20 |
WO2004107366A1 (en) | 2004-12-09 |
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