GB1434909A - Operating knob assembly for an electrical switch - Google Patents
Operating knob assembly for an electrical switchInfo
- Publication number
- GB1434909A GB1434909A GB4285272A GB4285272A GB1434909A GB 1434909 A GB1434909 A GB 1434909A GB 4285272 A GB4285272 A GB 4285272A GB 4285272 A GB4285272 A GB 4285272A GB 1434909 A GB1434909 A GB 1434909A
- Authority
- GB
- United Kingdom
- Prior art keywords
- knob
- legends
- viewable
- angular position
- light guide
- 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
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/054—Optical elements
- H01H2219/062—Light conductor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Control Devices (AREA)
Abstract
1434909 Indicators for switches LUCAS ELECTRICAL CO Ltd 20 Aug 1973 [15 Sept 1972] 42852/72 Heading H1N A knob for a rotary switch has an aperture 14 accommodating a light guide 16 having one end 18 viewable and an opposite end 19 of arcuate form with the axis of the arc lying on the pivot axis A-A of the knob, said end 19 being provided with a plurality of legends thereacross such that, in use, light from a fixed source enters said end 19 and causes one of the legends to be viewable at the end 18 in dependance on the angular position of the knob and thus the condition of the switch. As shown the light guide 16 is of clear acrylic with concavely curved sides 20, 21 and a projection 17 which engages a recess 15 in the knob to retain the guide 16 in position. The legends preferably take the form of different coloured portions 23, 24, 25, 26 on the face 22 of end 19 and may have separating ribs therebetween. The portion 26 may be recessed as shown to allow for axial movement of the knob in one angular position thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4285272A GB1434909A (en) | 1972-09-15 | 1972-09-15 | Operating knob assembly for an electrical switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4285272A GB1434909A (en) | 1972-09-15 | 1972-09-15 | Operating knob assembly for an electrical switch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1434909A true GB1434909A (en) | 1976-05-12 |
Family
ID=10426251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4285272A Expired GB1434909A (en) | 1972-09-15 | 1972-09-15 | Operating knob assembly for an electrical switch |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1434909A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0869520A2 (en) * | 1997-03-07 | 1998-10-07 | Illinois Tool Works Inc. | Illuminated knob assembly |
EP1508726A2 (en) | 2003-08-22 | 2005-02-23 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Shift lever device |
EP2282250A1 (en) * | 2009-08-06 | 2011-02-09 | elobau GmbH & Co. KG | Thumbwheel |
US8813676B2 (en) | 2010-05-07 | 2014-08-26 | Whirlpool Corporation | User interface for a controller |
-
1972
- 1972-09-15 GB GB4285272A patent/GB1434909A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0869520A2 (en) * | 1997-03-07 | 1998-10-07 | Illinois Tool Works Inc. | Illuminated knob assembly |
EP0869520A3 (en) * | 1997-03-07 | 1999-05-06 | Illinois Tool Works Inc. | Illuminated knob assembly |
EP1508726A2 (en) | 2003-08-22 | 2005-02-23 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Shift lever device |
EP1508726A3 (en) * | 2003-08-22 | 2010-05-19 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Shift lever device |
EP2282250A1 (en) * | 2009-08-06 | 2011-02-09 | elobau GmbH & Co. KG | Thumbwheel |
US8813676B2 (en) | 2010-05-07 | 2014-08-26 | Whirlpool Corporation | User interface for a controller |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |