EP0173820A1 - Rotatable and retractable knob - Google Patents
Rotatable and retractable knob Download PDFInfo
- Publication number
- EP0173820A1 EP0173820A1 EP85108403A EP85108403A EP0173820A1 EP 0173820 A1 EP0173820 A1 EP 0173820A1 EP 85108403 A EP85108403 A EP 85108403A EP 85108403 A EP85108403 A EP 85108403A EP 0173820 A1 EP0173820 A1 EP 0173820A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary knob
- holder
- rotary
- spring element
- knob
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/087—Controlling members for hand actuation by rotary movement, e.g. hand wheels retractable; Flush control knobs
-
- 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
- H01H13/56—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 upon the next application of operating force
- H01H13/562—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 upon the next application of operating force making use of a heart shaped cam
-
- 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
- H01H3/08—Turn knobs
- H01H2003/085—Retractable turn knobs, e.g. flush mounted
Definitions
- the invention relates to a retractable rotary knob according to the preamble of claim 1.
- the object of the invention is to constructively improve a retractable rotary toggle of the type described at the outset in such a way that mechanical wear on the groove track is avoided and the countersinking process can be carried out easily and thus in a manner which saves energy.
- the proposed measures create a retractable rotary toggle, which is largely immune to mechanical wear due to its sliding pin and thus has a long service life with a high degree of functional reliability in every rotary range or respective rotary position of the rotary knob.
- the rotary toggle unit shown in the drawing consists essentially of the corrugated rotary toggle 1, on which a square-shaped guide sleeve 2 is formed, and a toggle shaft 3, which is designed to fit into the guide sleeve and has a central plug insert 4.
- the plug insert is used to produce a plug connection for setting a switching or regulating device, not shown, as is used in household appliances (cookers, washing machines, dishwashers, tumble dryers, etc.).
- the invisible torsion spring is accommodated in the interior of the rotary lever 1 and is supported against the end face of the toggle shaft 3 ending in the guide sleeve 2. In one jacket side 5 of the toggle shaft 3, a closed groove 6 is introduced.
- a detent point 7 is formed at one end of the groove track 6, while the other end of the groove track merges into a stop point 8.
- the groove track 6 is used for guidance a sliding pin 9, which is part of a movable holder 10.
- the holder 10 has a bearing pin 11 on the upper side, which is movably guided in a hollow rivet 12 inserted in the jacket of the rotary knob 1.
- Arranged parallel to the top of the holder 10 is an approximately U-shaped leaf spring element 13, which is supported against the inner wall of the guide sleeve 2 and thus runs between the latter and the holder 10.
- a guide groove 14 is expediently formed in the wall of the guide sleeve 2 for the leaf spring element 13.
- the leaf spring element 13 is attached with the end opposite the resilient part to the bearing journal 11 of the holder 10, so that both parts (holder 10 and leaf spring element 13) are part of the rotary toggle 1 and are articulated or movably coupled thereto.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switches With Compound Operations (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
Die Erfindung betrifft einen versenkbaren Drehknebel nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a retractable rotary knob according to the preamble of
Aus der DE-C-22 50 621 ist ein versenkbarer Drehknebel dieser Art bekannt. Bei diesem versenkbaren Drehknebel ist der die geschlossene Nutbahn durchfahrende Gleitstift (Zapfen) fester Bestandteil des Drehknebels. Dies hat zur Folge, daß beim Versenkungsvorgang des Drehknebels ein großer Kraftaufwand erforderlich ist, der sich daraus ergibt, daß beim Durchfahren der geschlossenen Nutbahn mit dem starren Gleitstift (Zapfen) große Reibungskräfte zu überwinden sind. Es hat sich nun gezeigt, daß sich an der geschlossenen Nutbahn durch die große Beanspruchung beim Durchfahren mit dem starren Gleitstift (Zapfen) schon bald mechanische Abnützungserscheinungen bemerkbar machen. Diese führen dann dazu, daß eine sichere Funktion nicht mehr gewährleistet ist und oftmals der Drehknebel beim Ausführen des Versenkungsvorgangs nicht sicher verrastet und nach Loslassen nicht in die versenkte Ruhestellung sondern wider in die ausgefahrene Betriebsstellung zurückspringt.From DE-C-22 50 621 a retractable rotary knob of this type is known. With this retractable rotary toggle, the sliding pin (pin) passing through the closed groove is an integral part of the rotary toggle. The consequence of this is that a great effort is required during the lowering process of the rotary toggle, which results from the fact that large frictional forces have to be overcome when driving through the closed groove with the rigid sliding pin (pin). It has now been shown that mechanical signs of wear will soon be noticeable on the closed groove track due to the high stress when driving through with the rigid sliding pin (pin). This then leads to the fact that a safe function is no longer guaranteed and often the rotary knob is not securely locked when the lowering process is carried out and does not spring back into the retracted rest position but instead into the extended operating position after being released.
Aufgabe der Erfindung ist es, einen versenkbaren Drehknebel der eingangs beschriebenen Art konstuktiv mit einfachen Mitteln so zu verbessern, daß mechanische Abnützungen an der Nutbahn vermieden werden und der Versenkungsvorgang leicht und damit kraftsparend ausgeführt werden kann.The object of the invention is to constructively improve a retractable rotary toggle of the type described at the outset in such a way that mechanical wear on the groove track is avoided and the countersinking process can be carried out easily and thus in a manner which saves energy.
Die Lösung dieser Aufgabe gemäß der Erfindung ist dem kennzeichnenden Teil des Patentanspruchs 1 zu entnehmen.The solution to this problem according to the invention can be found in the characterizing part of
Zweckmäßige weitere Ausgestaltungen des Gegenstandes der Erfindung sind in den Unteransprüchen angegeben.Advantageous further developments of the subject matter of the invention are specified in the subclaims.
Durch die vorgeschlagenen Maßnahmen wird ein versenkbarer Drehknbel geschaffen, der wegen seine Gleitstiftes gegenüber mechanischen Abnützungen weitgehend immun ist und damit eine lange Lebensdauer bei hoher Funktionssicherheit in jedem Drehbereich bzw. jeweiliger Drehstellung des Drehknebels aufweist.The proposed measures create a retractable rotary toggle, which is largely immune to mechanical wear due to its sliding pin and thus has a long service life with a high degree of functional reliability in every rotary range or respective rotary position of the rotary knob.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird an Hand dieser nachfolgend näher beschrieben.An embodiment of the invention is shown in the drawing and will be described in more detail below with reference to this.
Es zeigen:
- Fig. 1 eine versenkbare Drehknebeleinheit mit ausgefahrenem (Betriebsstellung) Drehknebel teilweise aufgeschnitten,
- Fig. 2 diese Drehknebeleinheit im senkrechten Mittelschnitt
- 1 a retractable rotary toggle unit with the (operating position) rotary toggle partially cut away,
- Fig. 2 this rotary toggle unit in the vertical central section
Die in der Zeichnung dargestellte Drehknebeleinheit besteht im wesentlichen aus dem geriffelten Drehknebel 1, an dem eine quadratisch ausgebildete Führungshülse 2 angeformt ist, und eine in die Führungshülse passende ebenso ausgebildete Knebelwelle 3, welche einen zentrischen Steckeinsatz 4 aufweist. Der Steckeinsatz dient zur Herstellung einer Steckverbindung zum Einstellen einer nicht dargestellten Schalt- oder Regeleinrichtung, wie sie in Haushalts, geräten (Herde, Waschmaschinen, Geschirrspülmaschinen, Wäschetrockner usw.) Verwendung findet. Im Innern des Drehhebels 1 ist die nicht sichtbare Drehfeder untergebracht, die sich gegen die in der Führungshülse 2 endende Stirnseite der Knebelwelle 3 abstützt. In der einen Mantelseite 5 der Knebelwelle 3 ist eine geschlossene Nutbahn 6 eingebracht. An dem einen Ende der Nutbahn 6 ist eine Raststelle 7 gebildet, während das andere Ende der Nutbahn in eine Anschlagstelle 8 übergeht. Die Nutbahn 6 dient zur Führung eines Gleitstiftes 9, der Bestandteil eines beweglichen Halters 10 ist. Der Halter 10 besitzt oberseitig einen Lagerzapfen 11, der in einem im Mantel des Drehknebels 1 eingebrachten Hohlniet 12 beweglich geführt ist. Parallel zur Oberseite des Halters 10 ist ein etwa U-förmig gebogenes Blattfederelement 13 angeordnet, das sich gegen die innere Wandung der Führungshülse 2 abstützt und damit zwischen dieser und dem Halter 10 verläuft. Für das Blattfederelement 13 ist in der Wandung der Führungshülse 2 zweckmäßig eine Führungsnut 14 ausgeformt. Das Blattfederelement 13 ist mit dem den federnden Teil entgegengesetztem Ende am Lagerzapfen 11 des Halters 10 angebracht, so daß damit beide Teile (Halter 10 und Blattfederelement 13) Bestandteil des Drehknebels 1 und gelenkig bzw. beweglich mit diesem gekoppelt sind.The rotary toggle unit shown in the drawing consists essentially of the corrugated
Die Funktion der vorbeschriebenen Drehknebeleinheit ist folgende:
- Der
Drehknebel 1 befindet sich beim dargestellten Ausführungsbeispiel im ausgefahrenen Zustand, welcher die Betriebsstellung des Drehknebels ist und zum Einstellen der an der Einstellwelle 3, 4 ankoppelbaren Schalt- und Regeleinrichtung des elektrischen Haushaltsgerätes dient. - Der Gleitstift 9 befindet sich dabei im Bereich der
Anschlagstelle 8 am Ende derNutbahn 6, wodurch die Betriebsstellung des Drehknebels fixiert bzw. festgelegt ist. Soll derDrehknebel 1 in seine Ruhestellung (Versenkstellung) gebracht werden, so wird dieser gegen die Kraft der erwähnten Druckfeder im Innern des Drehknebels axial gegenüber der Knebelwelle 3 verschoben. Derbewegliche Gleitstift 8, der mittels dem auf dem Gleitstift-Halter 10einwirkenden Blattfederelement 13 in dieNutbahn 6 gedrückt wird, fährt in derNutbahn 6 entlang, bis er in die Raststelle 7 kippt. Mit Loslassen desDrehknebels 1 ist dessen Ruhestellung (Versenkstellung) gesichert. Durch ein kurzzeitiges Antippen desDrehknebels 1 kann die Raststellung wieder aufgehoben werden. - Der
Drehknebel 1 wird dann durch Entspannen der Druckfeder im Innern des Drehknebels automatisch in seine Betriebsstellung gebracht.
- The
rotary knob 1 is in the illustrated embodiment in the extended state, which is the operating position of the rotary knob and is used to adjust the switching and control device of the electrical household appliance that can be coupled to the setting shaft 3, 4. - The sliding pin 9 is located in the area of the
stop 8 at the end of thegroove 6, whereby the operating position of the rotary knob is fixed or fixed. If therotary toggle 1 is to be brought into its rest position (retracted position), it is axially displaced in relation to the toggle shaft 3 against the force of the compression spring mentioned inside the rotary toggle. Themovable slide pin 8, which is pressed into thegroove track 6 by means of theleaf spring element 13 acting on theslide pin holder 10, travels along thegroove track 6 until it tilts into the latching point 7. When therotary knob 1 is released, its rest position (retracted position) is secured. The latching position can be canceled again by briefly tapping therotary knob 1. - The
rotary toggle 1 is then automatically brought into its operating position by relaxing the compression spring inside the rotary toggle.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843427378 DE3427378A1 (en) | 1984-07-25 | 1984-07-25 | Retractable rotary knob |
DE3427378 | 1984-07-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0173820A1 true EP0173820A1 (en) | 1986-03-12 |
EP0173820B1 EP0173820B1 (en) | 1989-09-20 |
Family
ID=6241504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85108403A Expired EP0173820B1 (en) | 1984-07-25 | 1985-07-06 | Rotatable and retractable knob |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0173820B1 (en) |
DE (2) | DE3427378A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2236380A (en) * | 1989-09-25 | 1991-04-03 | Toshiba Kk | Retractable operating knobs for washing machines |
FR2698459A1 (en) * | 1992-11-20 | 1994-05-27 | Renault | Retractable knob operating rotating shaft control - uses spring-loaded knob sliding axially on control shaft and has locking arm parallel to shaft that is displaced by guides in knob. |
EP0671681A1 (en) * | 1994-03-09 | 1995-09-13 | Whirlpool Europe B.V. | Retractable turning knob |
EP1061429A1 (en) * | 1999-06-19 | 2000-12-20 | Mannesmann VDO Aktiengesellschaft | Retractable rotary knob |
EP2469551A3 (en) * | 2010-12-22 | 2017-06-07 | BSH Hausgeräte GmbH | Cooking appliance having pop-out type control knob assembly |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4343976C2 (en) * | 1993-12-22 | 1998-02-12 | Bosch Siemens Hausgeraete | Retractable door handle |
DE4343977C2 (en) * | 1993-12-22 | 1997-07-03 | Bosch Siemens Hausgeraete | Actuating device for a door lock of a door of a household appliance lockable with this door lock |
DE19545994A1 (en) * | 1995-12-09 | 1997-06-12 | Aeg Hausgeraete Gmbh | Retractable rotary toggle unit |
DE19801300C2 (en) * | 1998-01-16 | 1999-11-11 | Aeg Hausgeraete Gmbh | Retractable rotary toggle unit |
DE19904070A1 (en) | 1999-02-02 | 2000-08-03 | Volkswagen Ag | Retractable switching element with pop-out button |
DE20201171U1 (en) | 2002-01-17 | 2002-04-18 | Kermi Gmbh, 94447 Plattling | Door handle for shower cubicles |
TR201002246A2 (en) * | 2010-03-24 | 2011-10-21 | Bora Bükülmez Mehmet | A push pull mechanism. |
WO2015042777A1 (en) * | 2013-09-24 | 2015-04-02 | 西门子公司 | Heart-shaped self-locking button |
TR201704416A2 (en) * | 2017-03-24 | 2018-03-21 | Imren Plastik Sanayi Ve Ticaret Ltd Sirketi | A MOTION CONTROL MECHANISM |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187602A (en) * | 1960-07-06 | 1965-06-08 | Telephone Mfg Co Ltd | Push button device |
DE1213194B (en) * | 1962-06-16 | 1966-03-24 | L Isostat Fa | Locking device for a slide |
US3557637A (en) * | 1969-07-28 | 1971-01-26 | Gen Motors Corp | Control knob |
DE2250621A1 (en) * | 1972-10-16 | 1974-04-18 | Standard Elektrik Lorenz Ag | ROTARY KNOB FOR AN ADJUSTMENT SHAFT |
FR2447060A1 (en) * | 1979-01-19 | 1980-08-14 | Thomson Brandt | Countersunk rotary control knob for domestic electric appliance etc. - has heart shaped race for retaining ball in outer peripheral surface of inner element |
-
1984
- 1984-07-25 DE DE19843427378 patent/DE3427378A1/en not_active Withdrawn
-
1985
- 1985-07-06 EP EP85108403A patent/EP0173820B1/en not_active Expired
- 1985-07-06 DE DE8585108403T patent/DE3573181D1/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187602A (en) * | 1960-07-06 | 1965-06-08 | Telephone Mfg Co Ltd | Push button device |
DE1213194B (en) * | 1962-06-16 | 1966-03-24 | L Isostat Fa | Locking device for a slide |
US3557637A (en) * | 1969-07-28 | 1971-01-26 | Gen Motors Corp | Control knob |
DE2250621A1 (en) * | 1972-10-16 | 1974-04-18 | Standard Elektrik Lorenz Ag | ROTARY KNOB FOR AN ADJUSTMENT SHAFT |
FR2447060A1 (en) * | 1979-01-19 | 1980-08-14 | Thomson Brandt | Countersunk rotary control knob for domestic electric appliance etc. - has heart shaped race for retaining ball in outer peripheral surface of inner element |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2236380A (en) * | 1989-09-25 | 1991-04-03 | Toshiba Kk | Retractable operating knobs for washing machines |
GB2236380B (en) * | 1989-09-25 | 1994-01-12 | Toshiba Kk | Clothes washing machine |
FR2698459A1 (en) * | 1992-11-20 | 1994-05-27 | Renault | Retractable knob operating rotating shaft control - uses spring-loaded knob sliding axially on control shaft and has locking arm parallel to shaft that is displaced by guides in knob. |
EP0671681A1 (en) * | 1994-03-09 | 1995-09-13 | Whirlpool Europe B.V. | Retractable turning knob |
EP1061429A1 (en) * | 1999-06-19 | 2000-12-20 | Mannesmann VDO Aktiengesellschaft | Retractable rotary knob |
US6410871B1 (en) | 1999-06-19 | 2002-06-25 | Mannesmann Vdo Ag | Retractable rotary knob for switch including latch mechanism |
EP2469551A3 (en) * | 2010-12-22 | 2017-06-07 | BSH Hausgeräte GmbH | Cooking appliance having pop-out type control knob assembly |
Also Published As
Publication number | Publication date |
---|---|
EP0173820B1 (en) | 1989-09-20 |
DE3573181D1 (en) | 1989-10-26 |
DE3427378A1 (en) | 1986-01-30 |
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