WO2010071922A1 - Lockable rotary electrical switch - Google Patents
Lockable rotary electrical switch Download PDFInfo
- Publication number
- WO2010071922A1 WO2010071922A1 PCT/AU2009/001670 AU2009001670W WO2010071922A1 WO 2010071922 A1 WO2010071922 A1 WO 2010071922A1 AU 2009001670 W AU2009001670 W AU 2009001670W WO 2010071922 A1 WO2010071922 A1 WO 2010071922A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- collar
- aperture
- rotary switch
- electrical switch
- level
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/28—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for preventing unauthorised access to the controlling member or its movement to a command position
-
- 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
- H01H19/04—Cases; Covers
- H01H19/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/002—Casings sealed
- H01H2223/004—Evacuation of penetrating liquid
Definitions
- This invention relates to improvements to electrical switch assemblies.
- Industrial electrical switchgear is adapted for use in environments where there will be exposure to one or more of dirt, dust and moisture, such as outdoor environments and harsh indoor environments, such as those found in warehouses and factories.
- One type of industrial electrical switch assembly comprises a rotary switch (or knob) rotatably nested within a base, where there are one or more seals or gaskets located between the rotary switch and its base so as to prevent dirt, dust and/or moisture from passing between these and fouling the workings of the switch.
- One simple technique for facilitating locking is to provide an aperture through both a portion of each of the rotary switch and the base, where these apertures may be aligned when the switch is set in a selected position (usually the "Off' position). In this way, a shank of a padlock may be passed through these aligned apertures and locked closed so as to prevent rotation of the rotary switch relative to the base.
- One problem with the above described locking technique is that the apertures for the padlock shank have been found to provide both a gathering and entry point (i.e. entry to the switch) for dust, dirt and moisture.
- An object of the present disclosure then is to ' provide an electrical switch assembly in which the above described short comings have been substantially ameliorated, or which may, at the least, serve as a useful alternative to known electrical switch assemblies.
- an electrical switch assembly comprising a rotary switch having a circular face which is rotatably nested in a collar extending from a base, there being a collar aperture passing through the collar so that an outer end of the collar aperture is located in an outer surface of the collar and an inner end of the collar aperture is located in an inner surface of the collar, where at least the outer end of the collar aperture is located at a level which is below a level of a horizontal centre line.
- the rotary switch comprises a circular face defining an annular, circumferential rim.
- the invention may include an electrical switch assembly comprising a rotary switch having a circular face defining an annular, circumferential rim, the rotary switch being rotatably nested.in a collar extending from a base so that the rotary switch has an axis of rotation which passes through the centre of the circular face of the switch and which is directed normal to the face, there being a collar aperture passing through the collar so that an outer end of the collar aperture is located in an outer surface of the collar and an inner end of the collar aperture is located in an inner surface of the collar, where at least the outer end of the collar aperture is located at a level which is below a level of a horizontal centre line.
- both the collar aperture and a rim aperture through the rim of the rotary switch are aligned, so that a shank of a padlock may be passed through the both of these.
- the outer end of the collar aperture is at a level which is lower than the inner end of the collar aperture.
- the outer end of the collar aperture is at a level which is higher than the inner end of the collar aperture.
- the outer end of the collar aperture is at a level which is the same as that of the inner end of the collar aperture.
- the inner end of the collar aperture is below a level of the horizontal centre line of the rotary switch's circular face.
- an electrical switch assembly comprising a rotary switch having a circular face defining an annular, circumferential rim, the rotary switch being rotatably nested in a collar extending from a base so that the rotary switch has an axis of rotation which passes through the centre of the circular face of the switch and which is directed normal to this face, there being a collar aperture passing through the collar so that a centre line of the collar aperture extends radially from the axis of rotation of the rotary switch with a downward angle of inclination.
- the rotary switch is a knob.
- the rotary switch is rotatable between at least first and second positions.
- the first and second positions are the switch assembly's “On” and “Off positions.
- the selected position is the "Off position.
- the rim aperture is moved so as to be behind the collar of the base.
- each of these collar apertures passes through the collar, where at least the outer end of the or each of these collar apertures is located at a level which is below a level of the horizontal centre line of the rotary switch's circular face.
- each of these collar apertures is mirrored about a vertical centre line of the rotary switch's circular face.
- each of the rim apertures is aligned with respect to one of the collar apertures.
- a base for an electrical switch assembly having a collar extending therefrom, said collar defining a rotary switch region adapted to have a knob rotatably nested therein, there being a collar aperture passing through the collar so that an outer end of the collar aperture is located in an outer surface of the collar and an inner end of the collar aperture is located in an inner surface of the collar, where at least the outer end of the collar aperture is located at a level which is below a level of the horizontal centre line of the switch region.
- a base for an electrical switch assembly having a collar extending therefrom, said collar defining an aperture adapted to have a knob rotatably nested therein, there being a collar aperture passing through the collar so that an outer end of the collar aperture is located in an outer surface of the collar and an inner end of the collar aperture is located in an inner surface of the collar, where at least the outer end of the collar aperture is positioned and/or directed so as to reduce moisture and/or particulate incursion.
- both the collar aperture and an aperture through the rim of the rotary switch are aligned, so that the shank of a padlock may be passed through the both of these such that the shank extends in a direction that is not substantially perpendicular to the direction of elongation of the rib.
- Figure 1 is a front view of an electrical switch assembly
- Figure 2 is a side view of the electrical switch assembly in Figure 1;
- Figure 3 is a perspective view of the electrical switch assembly in Figure 2;
- Figures 4 and 5 are perspective views of the electrical switch assembly in Figures 1 through 3, illustrating the shank of a padlock extending through the aligned apertures;
- FIG. 6 is a perspective view of a base for an electrical switch assembly as illustrated in Figures 1 through 3.
- like reference characters designate like or corresponding parts throughout the several views of the drawings.
- the switch assembly 1 includes a generally box shaped base 2 (illustrated in isolation in Figure 6), which " houses the workings of the switch assembly and which has a front face 4 and an opposing rear surface 6 via which the base 2 is adapted to be secured to a support surface therefore.
- a rotary switch (or knob) 8 Rotatably located in the front face 4 of the base 2 is a rotary switch (or knob) 8; this rotary switch 8 is ⁇ generally, cylindrical, so it has a circular face 10, and an axis of rotation A-A which passes through the centre of the circular face 10 and which is directed normal to the circular face 10.
- a pair of symmetrical, approximately semi-circle shaped recesses are moulded into the face 10 of the rotary switch 8 so that the switch face 10 is defined by an annular, circumferential rim 12 having an outwardly directed Hp and a rib 16 extending from one side of the rim 12 to the other.
- This rib 16 then is the portion which a user may grasp (usually between their thumb and forefinger) to turn the rotary switch 8.
- the face 10 of the rotary switch 8 is raised relative to the face 4 of the base 2, and a flange extends out from the face 4 of the base 2 and around the circumference of the rotary switch 8 forming a collar 18 which meets a back edge of the outwardly directed lip of the rotary switch's face 10.
- this collar 18 is blended from the face 4 of the base 2 out to the rim 12 of the rotary switch's face 10.
- a collar aperture which is in this case a generally U-shaped notch 20, is formed into the collar 18 so that an outer end 20a of the notch 20 is located in an outer surface of the collar 18 and an inner end 20b of the notch 20 is located in an inner surface of the collar 18; the outer end 20a of the notch 20 is at a level lower than the inner end 20b of the notch 20, and both ends 20a and 20b of the notch 20 are located at a level below a level of the horizontal centre line a-a of the rotary switch's 8 circular face 10.
- a centre line x-x of the notch 20 may be defined as extending radially from the axis of rotation of the rotary switch 8 with a downward angle of inclination.
- the inner end 20b of the notch 20 may be lower than or at the same level as the outer end 20a, so long as the outer end 20a is below the a level of the horizontal centre line a-a.
- This notch 20 is sized (i.e. it is both wide and deep enough) so that a shank 42 of a padlock 40 ma ⁇ 1 locate therein (see Figures 4 and 5).
- a rim aperture 30 passes through the rim 12 of the rotary switch 8 so that an outer end 30a of the rim aperture 30 is located in an outer surface of the rim and an inner end 30b of the rim aperture 30 is located in an inner surface of the rim 12.
- the outer end 30a of the rim aperture 30 is at a level which is lower than the level of the inner end 30b of the rim aperture 30, and both ends 30a and 30b of the rim aperture 30 are located at a level below a level of the centre line a-a of the rotary switch's 8 circular face 10.
- the centre line x-x of the rim aperture 30 may be defined as extending radially from the axis of rotation A-A of the rotary switch 8 with a downward angle of inclination.
- This rim aperture 30 is sized (i.e. its diameter is sufficient) so that a shank 42 of a padlock 40 may be passed therethrough, as illustrated in Figures 4 and 5.
- both the collar aperture or notch 20, and the rim aperture 30 are aligned, and a shank 42 of a padlock 40 may be passed through the rim aperture 30 and locate and be captured in the notch 20, so that the act of locking the padlock 40 closed will lock the rotary switch 8 in this position relative to the base 2.
- the rim aperture 30 is moved so as to be behind the collar 18 of the base 2. In this position, this rim aperture 30 cannot form a ledge upon which dust and dirt may gather.
- the dust and dirt 50 falls past the ' collar aperture 20 due to the fact that the collar aperture 20 is located below the horizontal centre line a-a of the rotary switch 8 and collar 1 8.
- a significant advantage of positioning and orienting the collar aperture or notch 20 in this fashion is that it is both vertically shielded from dust, dirt and water, by the collar 18 portion directly above the collar notch 20, and it does not form a ledge upon which dust and dirt 50 may easily gather, by virtue of its combined outward and downward inclination. Moreover, water cannot run down the collar aperture or notch 20 toward the rotary switch 8.
- the shank 42 of the padlock 40 when the switch is in the selected (i.e. "Off) position, and the shank 42 of the padlock 40 is passed through the apertures 20 and 30, the shank 42 extends in a direction that is not substantially perpendicular to the direction of elongation of the rib 16.
- Figure 6 shows the base 2 for the electrical switch assembly 1.
- the base 2 has a collar 18 extending therefrom.
- the collar defines a rotary switch region 60 which may be a well, recess or aperture, adapted to have a rotary switch nested therein.
- a collar aperture or notch 20 passes through the collar 18 so that an outer end 20a of the collar aperture or notch 20 is located in an outer surface of the collar 18 and an inner end 20b of the collar aperture or notch 20 is located in an inner surface of the collar 18.
- at least the outer end 20a of the collar aperture or notch 20 through the collar 18 is located at a level which is below a level of the horizontal centre line a-a of the rotary switch region 60.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Security & Cryptography (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2009329810A AU2009329810B2 (en) | 2008-12-22 | 2009-12-21 | Lockable rotary electrical switch |
CN200980152803.6A CN102257585B (en) | 2008-12-22 | 2009-12-21 | Lockable rotary electrical switch |
NZ593419A NZ593419A (en) | 2008-12-22 | 2009-12-21 | Lockable rotary electrical switch with at least one collar aperture located below a horizontal centre line |
SG2011045457A SG172300A1 (en) | 2008-12-22 | 2009-12-21 | Lockable rotary electrical switch |
HK11113970.4A HK1159846A1 (en) | 2008-12-22 | 2011-12-28 | Lockable rotary electrical switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2008906561 | 2008-12-22 | ||
AU2008906561A AU2008906561A0 (en) | 2008-12-22 | Improvements to electrical switch assemblies |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010071922A1 true WO2010071922A1 (en) | 2010-07-01 |
Family
ID=42286784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2009/001670 WO2010071922A1 (en) | 2008-12-22 | 2009-12-21 | Lockable rotary electrical switch |
Country Status (7)
Country | Link |
---|---|
CN (1) | CN102257585B (en) |
AU (1) | AU2009329810B2 (en) |
HK (1) | HK1159846A1 (en) |
MY (1) | MY155883A (en) |
NZ (1) | NZ593419A (en) |
SG (1) | SG172300A1 (en) |
WO (1) | WO2010071922A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2472540A1 (en) * | 2010-12-29 | 2012-07-04 | General Electric Company | Switching assembly having an interlock device for a selector switch |
EP3076418A1 (en) * | 2015-04-01 | 2016-10-05 | Gave Electro. S.L | Light-signalling system for electric control and command devices |
US9828789B2 (en) | 2015-12-22 | 2017-11-28 | Leviton Manufacturing Co., Inc. | Locking and sealing arrangement for a load switch handle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3006498B1 (en) * | 2013-05-31 | 2015-07-03 | Alstom Technology Ltd | DEVICE FOR CONTROLLING ELECTRICAL EQUIPMENT COMPRISING AXIAL NOTCHES |
CN109057579A (en) * | 2018-07-28 | 2018-12-21 | 滁州安阳智能科技有限公司 | A kind of portable handcuffss |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH631819A5 (en) * | 1978-07-31 | 1982-08-31 | Weber Ag Fab Elektro | Gripping device for a rotary switch |
EP0274624B1 (en) * | 1986-12-13 | 1992-01-08 | Moeller GmbH | Protective circuit-breaking switch with a hand mechanism |
US5243157A (en) * | 1992-05-06 | 1993-09-07 | Hubbell Incorporated | Lockable handle |
DE29819939U1 (en) * | 1998-11-07 | 1999-01-21 | Strötz, Heinrich, 94032 Passau | Protective cap for switches and sockets |
US7348504B2 (en) * | 2005-05-27 | 2008-03-25 | Master Lock Company Llc | Mountable lockout device |
CN201341039Y (en) * | 2009-01-15 | 2009-11-04 | 上海行创电气有限公司 | Safe pad lock device of automatic transfer switch electrical appliance |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2192075Y (en) * | 1993-11-29 | 1995-03-15 | 东富电器股份有限公司 | Improved structure of switch for electric fan |
-
2009
- 2009-12-21 WO PCT/AU2009/001670 patent/WO2010071922A1/en active Application Filing
- 2009-12-21 CN CN200980152803.6A patent/CN102257585B/en not_active Expired - Fee Related
- 2009-12-21 NZ NZ593419A patent/NZ593419A/en unknown
- 2009-12-21 SG SG2011045457A patent/SG172300A1/en unknown
- 2009-12-21 MY MYPI2011002897A patent/MY155883A/en unknown
- 2009-12-21 AU AU2009329810A patent/AU2009329810B2/en active Active
-
2011
- 2011-12-28 HK HK11113970.4A patent/HK1159846A1/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH631819A5 (en) * | 1978-07-31 | 1982-08-31 | Weber Ag Fab Elektro | Gripping device for a rotary switch |
EP0274624B1 (en) * | 1986-12-13 | 1992-01-08 | Moeller GmbH | Protective circuit-breaking switch with a hand mechanism |
US5243157A (en) * | 1992-05-06 | 1993-09-07 | Hubbell Incorporated | Lockable handle |
DE29819939U1 (en) * | 1998-11-07 | 1999-01-21 | Strötz, Heinrich, 94032 Passau | Protective cap for switches and sockets |
US7348504B2 (en) * | 2005-05-27 | 2008-03-25 | Master Lock Company Llc | Mountable lockout device |
CN201341039Y (en) * | 2009-01-15 | 2009-11-04 | 上海行创电气有限公司 | Safe pad lock device of automatic transfer switch electrical appliance |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2472540A1 (en) * | 2010-12-29 | 2012-07-04 | General Electric Company | Switching assembly having an interlock device for a selector switch |
CN102568881A (en) * | 2010-12-29 | 2012-07-11 | 通用电气公司 | Switching assembly having an interlock device for a selector switch |
US8796568B2 (en) | 2010-12-29 | 2014-08-05 | General Electric Company | Switching assembly having an interlock device for a selector switch |
CN102568881B (en) * | 2010-12-29 | 2016-01-20 | 通用电气公司 | There is the switch module of the interlock for selector switch |
EP3076418A1 (en) * | 2015-04-01 | 2016-10-05 | Gave Electro. S.L | Light-signalling system for electric control and command devices |
US9828789B2 (en) | 2015-12-22 | 2017-11-28 | Leviton Manufacturing Co., Inc. | Locking and sealing arrangement for a load switch handle |
Also Published As
Publication number | Publication date |
---|---|
AU2009329810B2 (en) | 2014-03-13 |
MY155883A (en) | 2015-12-15 |
CN102257585A (en) | 2011-11-23 |
HK1159846A1 (en) | 2012-08-03 |
NZ593419A (en) | 2013-03-28 |
AU2009329810A1 (en) | 2011-07-07 |
SG172300A1 (en) | 2011-07-28 |
CN102257585B (en) | 2014-11-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2009329810B2 (en) | Lockable rotary electrical switch | |
US5243135A (en) | Electrical outlet cover lock | |
US20110290625A1 (en) | Universal Box System | |
US20120291501A1 (en) | Magnetic lock and key assembly | |
CN101138841B (en) | Protective hood of a hand held machine tool | |
US4431113A (en) | Cover attachment device | |
CN102275675A (en) | Container having locking cover member | |
US8033064B2 (en) | Multi-piece polymer building products | |
US6261026B1 (en) | Resiliently mounted clip for indexed poles | |
US10584517B2 (en) | Locking device | |
US7357009B2 (en) | Pedastal closure assembly having snag-free lock | |
US20060219619A1 (en) | Universal drain cover | |
KR200397191Y1 (en) | Receptive Structure for Salient of Locker | |
JP4900930B2 (en) | Mailbox | |
US20090188693A1 (en) | Electrical-Outlet Faceplate with Hinged Cover Doors | |
DE69822738T2 (en) | Two-part electrical connector | |
JP5460623B2 (en) | Locking device | |
SE470236B (en) | Ladder with cover frame | |
RU2106456C1 (en) | Manhole unit for underground service lines | |
EP1026330A2 (en) | Device at water seals for floor drains | |
CN205210320U (en) | Operation panel that security installations uses has theftproof function | |
CN219532181U (en) | Sewage detection structure and sewage tank | |
CN210745754U (en) | Electrical cabinet convenient to install | |
CN202662490U (en) | Interlocking device used for selector switch | |
JP2019167759A (en) | Drainage cover |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980152803.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09833922 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009329810 Country of ref document: AU Ref document number: 593419 Country of ref document: NZ |
|
WWE | Wipo information: entry into national phase |
Ref document number: 4699/DELNP/2011 Country of ref document: IN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2009329810 Country of ref document: AU Date of ref document: 20091221 Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09833922 Country of ref document: EP Kind code of ref document: A1 |