EP3019925A1 - Appareil électroménager doté d'un commutateur de sélection rotatif de panneau avant amélioré - Google Patents
Appareil électroménager doté d'un commutateur de sélection rotatif de panneau avant amélioréInfo
- Publication number
- EP3019925A1 EP3019925A1 EP13734762.1A EP13734762A EP3019925A1 EP 3019925 A1 EP3019925 A1 EP 3019925A1 EP 13734762 A EP13734762 A EP 13734762A EP 3019925 A1 EP3019925 A1 EP 3019925A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- knob
- light guide
- household appliance
- indication
- front panel
- 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.)
- Withdrawn
Links
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
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
- G05G1/105—Details, e.g. of discs, knobs, wheels or handles comprising arrangements for illumination
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/025—Light-emitting indicators
Definitions
- the present invention relates to a household appliance having an improved front panel rotary selector switch for selectively indicating a visual indication means. More specifically, the present invention pertains to a household appliance knob that is selectively illuminating indication symbols by means of a single illuminating element.
- Front faces of household appliances usually comprise a control and information panel in the upper portion thereof; such an information panel typically enabling the user set different operation modes and get informed of the current operational status of the appliance.
- Such an information display and operation control panel generally involves illuminating elements placed behind transparent textual indications for visually indicating operational status of the household appliance.
- DE 4222335 A1 disclosing a rotary switch with a central knob that carries an illuminated symbol.
- the central section is surrounded by a fixed ring carrying symbols that are illuminated dependent upon the selected position of the switch.
- a single light source is used to provide illumination for the symbols by means of inner and outer rings of optical material transmitting light from the source to the appropriate points.
- the present invention provides an improved information display and operation control knob, surrounded by an indication ring having a plurality of indication means in the form of transparent textual materials assigned to different operational modes, each of the transparent textual materials being back-lit during rotation of said knob.
- the knob arrangement of the invention is advantageous in that a single light source is used for selectively illuminating only a certain visual indication means each time, without illuminating any closely neighboring indication means, which might be the case if optical materials that transmit light were to be used. This is achieved by means of special light guides that deliver light to a target area with a structural efficiency.
- the present invention provides a knob with a single light source overcoming the aforementioned inconveniences, which is defined in the characterized portion of Claim 1.
- Primary object of the present invention is to provide a knob with a single light source for selectively illuminating only a certain visual indication means each time, without illuminating any closely neighboring indication means.
- the present invention proposes a household appliance having a front panel with a knob.
- An indication ring around the knob is fixedly attached to the front panel.
- a single illumination means illuminates peripherally different parts of said indication ring while said knob is rotated.
- Said knob further has an inner section connected to itself, the inner section carrying the illumination means on its rear surface that is facing away from the knob.
- the illumination means a carried by a light guide holder that is also holding a light guide.
- the light guide is a hollow or solid tubular body that provides a light passageway from the illumination means to an indication means of the indication ring so as to illuminate the same from behind.
- Said light guide has an outer surface fully coated with dark color to block the internal light and a reflective inner surface.
- the light guide may have a first part fixedly attached to the inner section to be cooperating with a separate, stationary second part.
- Fig. 1 demonstrates a general perspective view of a household appliance front panel with an operation control knob according to the present invention.
- Fig. 2 demonstrates a general perspective view of disassembled parts of an operation control knob according to a first embodiment of the present invention.
- Fig. 3 demonstrates a cross-sectional view taken along the plane of the front panel according to the first embodiment of the present invention.
- Fig. 4 demonstrates a general perspective view of the operation control knob where the inner section of the knob is placed into the knob opening according to a second embodiment of the present invention.
- the present invention proposes a household appliance front panel as defined in Claim 1.
- the present invention proposes a household appliance such as a cooking oven or a laundry treatment appliance having a front panel (3) for providing various information display means and operation control elements to set different operation settings of the appliance.
- the front panel (3) conventionally comprises a rotary selector switch, i.e. a knob (1) surrounded by an indication ring (2), the latter being fixedly attached to a front panel (3) surface in the center of which said knob (1) is rotatably disposed. Rotation of the knob (1) typically provides that a separate indication means (4) on the indication ring (2) is pointed out in an illuminated manner and an associated setting is selected.
- the front panel (3) in which the rotary selector switch is embedded is in the form of a substantially planar surface with a knob opening (16) being surrounded by said indication ring (2) which extends on the same plane with said front panel (3).
- the knob (1) has an inner section (5) under the outer shell of the knob (1), said inner section (5) having a body with extensions in the form of radial wings (8) around an axial hole receiving a rotary selector switch shaft (10).
- a plurality of axial fixing means (9) engages with respective slots around the axial hole to restrict axial displacement of the inner section (5), which is in turn fixedly connected with the knob’s (1) outer shell in a suitable manner so that the two rotate together.
- the present invention proposes a single illumination means (7), preferably in the form of a LED driven by a light element driving circuit (15), connected to an electronic circuit (12) by means of an electric conductor (13).
- the illumination means (7) is secured to the rear surface of the inner section (5) by means of a light guide holder (11), said rear surface facing away from the knob (1) and facing said knob opening (16).
- Said light guide holder (11) lies in parallel with the surface normal axis of the front panel (3) and extends in the direction into said knob opening (16).
- an L-shaped light guide (6) structure is designed to illuminate the indication means (4) in the indication ring (2).
- the light from said illumination means (7) that is also secured to the light guide holder (11) is delivered to each indication means (4) of the indication ring (2) from behind so as to provide a back-lit indication means (4) in the form of a visually discernible textual material around the knob (1).
- the light guide (6) is secured to the rear surface of the inner section (5) of the knob (1), rotation of the knob (1) will displace the outer end of the light guide (6) between different positions corresponding to different indication means (4) to be juxtaposed therewith from behind.
- the light guide (6) can be designed in the form of light guide (6) having a first part that is rotatably cooperating with a stationary second part.
- Said second part in the form of a multiple-end light guide device (14) has inner ends or openings reciprocating with said first part such that while the knob (1) is being rotated, a different indication means (4) is illuminated in response thereto.
- the L-shaped structure of the light guide (6) provides that an indirect and therefore diminished illumination effect is obtained within the light guide (6) so that illumination of any closely neighboring indication means (4) is avoided.
- a linearly extending light guide (6) can, however, be useful for applications where non-localized or scattered illumination is preferred.
- the outer surface of light guide (6) is painted a dark and bright color to prevent undesired reflections inside the light guide (6).
- the present invention provides an electrical household appliance having a front panel (3) with a knob (1) surrounded by an indication ring (2).
- Said indication ring (2) has separate indication means (4) and is fixedly attached to a surface portion of the front panel (3).
- the knob (1) comprises a single illumination means (7) and is rotatably disposed in a knob opening (16) in the center of said indication ring (2).
- the knob (1) further comprises an inner section (5) delimited by said knob’s (1) outer shell and in an interengaging relationship therewith such that rotation of the knob (1) affects rotation of said inner section (5).
- Said illumination means (7) is secured to a rear surface portion of the inner section (5) facing said knob opening (16) by means of a light guide holder (11) holding a light guide (6) in the form of a hollow or solid tubular body that delivers light from the illumination means (7) to an indication means (4) of the indication ring (2) from behind.
- the present invention while the outer surface of the light guide (6) is fully coated with dark color, the inner surface thereof has a reflective surface character.
- the present invention therefore provides that only a single light source provides selective illumination of a specific visual indication means in a distinctive manner without illuminating any closely neighboring indication means.
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)
Abstract
La présente invention concerne un appareil électroménager comprenant un panneau avant (3) présentant des moyens d'affichage d'informations et des éléments de commande pour le réglage de différents paramètres de fonctionnement de l'appareil, le panneau avant (3) comportant un bouton (1) sous la forme d'un commutateur de sélection rotatif, entouré d'un anneau d'indication (2) possédant des moyens d'indication séparés (4) et étant assujetti de manière fixe à une partie de surface du panneau avant (3). Le bouton (1) comprend un moyen d'éclairage unique (7) et est disposé rotatif dans une ouverture (16) de bouton au centre dudit anneau d'indication (2), une partie intérieure (5) étant délimitée par l'enveloppe extérieure dudit bouton (1) et en relation de prise réciproque avec celle-ci, de sorte que la rotation du bouton (1) influe sur la rotation de la partie intérieure (5).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2013/064367 WO2015003730A1 (fr) | 2013-07-08 | 2013-07-08 | Appareil électroménager doté d'un commutateur de sélection rotatif de panneau avant amélioré |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3019925A1 true EP3019925A1 (fr) | 2016-05-18 |
Family
ID=48748239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13734762.1A Withdrawn EP3019925A1 (fr) | 2013-07-08 | 2013-07-08 | Appareil électroménager doté d'un commutateur de sélection rotatif de panneau avant amélioré |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3019925A1 (fr) |
WO (1) | WO2015003730A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105068593B (zh) * | 2015-08-27 | 2017-12-26 | 广州泰创电子科技有限公司 | 一种调节器 |
JP2017139174A (ja) * | 2016-02-05 | 2017-08-10 | 株式会社東海理化電機製作所 | 回転操作装置 |
KR102513487B1 (ko) | 2016-08-10 | 2023-03-23 | 삼성전자주식회사 | 조리기기 |
US10345514B2 (en) | 2017-02-22 | 2019-07-09 | Haier Us Appliance Solutions, Inc. | Appliance and illuminated knob assembly |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3139094A1 (de) * | 1980-11-12 | 1982-06-24 | Alps Electric Co., Ltd., Tokyo | Anzeigevorrichtung fuer einen veraenderbaren widerstand |
DE8702558U1 (de) * | 1987-02-19 | 1987-06-25 | Diemer & Fastenrath, 58511 Lüdenscheid | Schalter mit einem Drehknopf |
DE4222335C2 (de) | 1992-07-08 | 1995-05-24 | Reinshagen Kabelwerk Gmbh | Drehschalter |
EP0579882B1 (fr) * | 1992-07-24 | 1999-09-15 | Nissan European Technology Centre Limited | Indicateur |
DE19539081C2 (de) * | 1995-10-20 | 1998-07-16 | Preh Elektro Feinmechanik | Bedienteilmodul für elektrische Haushaltsgeräte |
SI21772A (sl) * | 2004-04-16 | 2005-10-31 | Gorenje D.D. | Sklop gumba izbirnika programa pri stroju, zlasti pri gospodinjskem aparatu |
DE102006034598A1 (de) * | 2006-07-26 | 2008-01-31 | BSH Bosch und Siemens Hausgeräte GmbH | Drehstelleinrichtung |
-
2013
- 2013-07-08 WO PCT/EP2013/064367 patent/WO2015003730A1/fr active Application Filing
- 2013-07-08 EP EP13734762.1A patent/EP3019925A1/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2015003730A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2015003730A1 (fr) | 2015-01-15 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20151214 |
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DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20180130 |