US3819883A - Automotive rotary switch with intermediate time delay means biasing a contact in non-operative position - Google Patents

Automotive rotary switch with intermediate time delay means biasing a contact in non-operative position Download PDF

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Publication number
US3819883A
US3819883A US00301511A US30151172A US3819883A US 3819883 A US3819883 A US 3819883A US 00301511 A US00301511 A US 00301511A US 30151172 A US30151172 A US 30151172A US 3819883 A US3819883 A US 3819883A
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US
United States
Prior art keywords
rotor
contacts
contact element
roller
electric switch
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
Application number
US00301511A
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English (en)
Inventor
A Heap
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lucas Electrical Co Ltd
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Lucas Electrical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Application granted granted Critical
Publication of US3819883A publication Critical patent/US3819883A/en
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/06—Key inserted and then turned to effect operation of the switch

Definitions

  • the rotor further carries in a slot a second contact element in the form of a roller which is angularly movable with the rotor and also movable angularly relative to the rotor within the slot.
  • a spring biasses the roller against a portion on the body carrying a pair of recesses. In one angular position of the rotor, the roller is aligned with the recesses and is urged by the spring to enter the recesses and bridge the second and third contacts.
  • a torsion spring urges the rotor out of the said one angular position.
  • An electric switch comprises a body, a plurality of first contacts on the body, a rotor, a first contact element movable by said rotor to interconnect selected ones of said first contacts, second and third contacts on said body, a second contact element operable to interconnect said second and third contacts, said second contact element co-acting with the rotor for angular movement relative thereto about the rotor axis, and biasing means operable to urge said second contact element to move relative to the rotor and to interconnect said second and third contacts when said rotor is in a predetermined angular position relative to said body.
  • FIG. I is a longitudinal section through the switch
  • FIG. 2 is a section on line 2-2 in FIG. 1;
  • FIG. 3 is a section of a detail of the switch
  • FIG. 4 is a view on arrow B in FIG. 4;
  • FIG. 5 shows another detail of the switch, as viewed on arrow A in FIG. 1;
  • FIG. 6 is a section on line 6-6 in FIG. 5, and
  • FIG. 7 shows a further detail of the switch.
  • the switch has a body comprising a cup-shaped member 10 which is secured to an axially aligned base II.
  • Base I1 is shown in greater detail in FIGS. 5 and 6,
  • Base 11 also supports a pair of contacts I3, 13a which lie within a recess at the centre of the base 11. Contacts 12, 13a extend through the base 11 to provide external connections 15, contact 13 being connected with one of the contacts 12 via an external connector (see FIG. 5).
  • a rotor 16 mounted within the body is a rotor 16, shown in detail in FIGS. 3and 4.
  • rotor I6 Non-rotatably engaged on rotor I6 is a contact plate 17, also shown in FIG. 7.
  • Plate 17 is biased towards base II by springs 18, and is formed with dimpled projections 19 which selectively interconnect contacts 12 as the rotor is rotated.
  • a detent arrangement co-operates with the body and with rotor. 16 to locate the latter at predetermined angular positions relative to the body, these positions corresponding to an off position of the switch and to desired interconnections between contacts 12.
  • Projection 20 on the rotor 16 is engageable with abutments 21, 22 on the member 10 to limit angular rotation of rotor: 16.
  • the relative positions of the detent arrangement and the abutment 22 are such that the rotor 16 may be moved further clockwise, as seen in FIG. 2, from its most clockwise detent location, prior to engagement witheabutment 22.
  • a torsion spring 23 is engageable with'rotor l6 and'member 10 so that, as rotor 16 is moved further-clockwise as described, an anticlockwise bias is applied tourge rotor 16 back to its most clockwise detent position.
  • Rotor 16 has a through slot 24 which passes through the rotor axis. Opposite walls of the slot 24 have offset parallel portions 25, 26 and offset parallel portions 27, 28, portions27, 28 lying at 30 to portions 25, 26 respectively, whereby an electrically conductive roller 29 lying within slot 24 is free to rotate through 30 relative to rotor 16 about the axis thereof.
  • Roller 29 is biased towards base 11 by a spring 30 and engages a step 31 surrounding the edge of the re cess 14 in base 11.
  • Step 31 is provided with a pair of diametrally opposed recesses 32 defined by ramps whereby when roller 29 is aligned with these recesses roller 29 is urged by spring 30 into engagement with contacts 13, 13a.
  • Adjacent the recesses 32 are a pair of diametrally opposed indentations 33 engageable by rol ler 29 during clockwise rotation of rotor 16 before roller 29 enters recesses 32.
  • indentations 33 The angular positions of indentations 33 relative to the switch body are such that roller 29 can enter indentations 33 in the most clockwise detent position of the rotor 16, subsequent clockwise movement of rotor to engage abutment 22 urging roller 29 from indentations 33 on to the adjacent ends of recesses 32.
  • the switch is particularly adapted for use as an ignition and starter switch for a road vehicle in which a starter device has a pair of circuits which are required to be successively energised, a predetermined delay time elapsing between energisation of these circuits.
  • Contacts 12 are respectively connected to a voltage supply, to vehicle auxiliary equipment, to the vehicle ignition and to the starter circuit which is required to be energisedfirst.
  • Contact 13 is connected to the voltage supply through the first stage of the starter circuit and via contact 13a to the second stage of the starter circuit which is required to be energised after the delay.
  • clockwise rotation of rotor 16 from the off" position causes first the auxiliary circuits to be energised and then the auxiliaries and ignition together. In this latter condition the rotor 16 is in its most clockwise detent position. Further clockwise rotation of rotor 16 against spring 23 de-energise the auxiliaries and energises the first stage of the starter circuit, the ignition remaining energised during the 30 of rotation required to bring rotor l6-into engagement with abutment 22.
  • roller 19 is also urged clockwise by engagement with faces 27, 28 of slot 24.
  • roller 29 leaves indentations 33 under the influence of the continuing rotation of the rotor 16 resulting in a small clockwise movement of roller 29 away from faces 27, 28.
  • Roller 29 is now on the adjacent upper ends of recesses 32, the action of spring 30 causing roller 29 to move clockwise relative to rotor 16 down the ramps to recesses 32.
  • Roller 29 bottoms in recesses 32 interconnecting contacts 13, 13a to energise the second stage of the starter circuit.
  • roller 29 is engaged by faces 25, 26of slot 24 and urgedout of recesses 32.
  • indentations 33 ensure that roller 29 can enterrecesses 32 only when urged by faces 27, 28 of slot 24 so that clockwise movement of roller 29 to interconnect contacts 13, 13a is initiated in a predetermined angular position of rotor 16 relative to the switch body.
  • An electric switch comprising a body, a plurality of first contacts on the body, a rotor, a first contact element movable by said rotor to interconnect selected ones of said first contacts, second and third contacts on said body, a second contact element operable to interconnect said second and third contacts, said second contact element coacting with said rotor for angular movement therebetween, and biasing means operable to urge said second contact element to move relative to said rotor and to interconnect said second and third contacts when said rotor is in a predetermined angular position relative to said body, said movement effected by the interaction of said biasing means with said secnd contact element enabling the occurrence of a predetermined time delay between interconnection of said first contacts by said first contact element and the subsequent interconnection of said second and third contacts by said second contact element.
  • said second contact element comprises a roller which is lodged in a slot in said rotor, opposite walls of said slot having two sets of offset parallel portions, said parallel portions of one set lying at an angle relative to said parallel portions of the other set whereby angular movement of said roller relative to said rotor is permitted.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
US00301511A 1971-11-12 1972-10-27 Automotive rotary switch with intermediate time delay means biasing a contact in non-operative position Expired - Lifetime US3819883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5263371A GB1403986A (en) 1971-11-12 1971-11-12 Electric switches

Publications (1)

Publication Number Publication Date
US3819883A true US3819883A (en) 1974-06-25

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ID=10464677

Family Applications (1)

Application Number Title Priority Date Filing Date
US00301511A Expired - Lifetime US3819883A (en) 1971-11-12 1972-10-27 Automotive rotary switch with intermediate time delay means biasing a contact in non-operative position

Country Status (12)

Country Link
US (1) US3819883A (it)
JP (1) JPS5247828B2 (it)
AR (1) AR203079A1 (it)
AU (1) AU470602B2 (it)
CA (1) CA975833A (it)
CS (1) CS171271B2 (it)
DE (1) DE2255360C3 (it)
ES (1) ES185832Y (it)
FR (1) FR2159397B1 (it)
GB (1) GB1403986A (it)
IT (1) IT970024B (it)
ZA (1) ZA727581B (it)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983352A (en) * 1975-05-12 1976-09-28 General Motors Corporation Rotary selector switch
US4049932A (en) * 1975-06-04 1977-09-20 Neiman, S.A. Safety device for a rotary starter switch for an automobile vehicle
US4286126A (en) * 1978-06-22 1981-08-25 Firma Leopold Kostal Ignition switch
US4405843A (en) * 1981-07-16 1983-09-20 The Eastern Company Anti-static switch lock
US5756947A (en) * 1996-10-09 1998-05-26 Delta Systems, Inc. Ignition switch
US6175091B1 (en) * 1998-10-23 2001-01-16 Matsushita Electric Industrial Co., Ltd. Rotary type electronic component and manufacturing method of the same
US20080185277A1 (en) * 2007-02-02 2008-08-07 Matsushita Electric Industrial Co., Ltd. Operating device and method of manufacture thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672154B1 (fr) * 1991-01-28 1993-10-29 Valeo Commutation Interrupteur d'antivol pour vehicules automobiles.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358093A (en) * 1966-02-17 1967-12-12 Lucas Industries Ltd Ignition switches
US3665128A (en) * 1969-11-25 1972-05-23 Indak Mfg Corp Electrical switch having rotary and push actions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3358093A (en) * 1966-02-17 1967-12-12 Lucas Industries Ltd Ignition switches
US3665128A (en) * 1969-11-25 1972-05-23 Indak Mfg Corp Electrical switch having rotary and push actions

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983352A (en) * 1975-05-12 1976-09-28 General Motors Corporation Rotary selector switch
US4049932A (en) * 1975-06-04 1977-09-20 Neiman, S.A. Safety device for a rotary starter switch for an automobile vehicle
US4286126A (en) * 1978-06-22 1981-08-25 Firma Leopold Kostal Ignition switch
US4405843A (en) * 1981-07-16 1983-09-20 The Eastern Company Anti-static switch lock
US5756947A (en) * 1996-10-09 1998-05-26 Delta Systems, Inc. Ignition switch
US6175091B1 (en) * 1998-10-23 2001-01-16 Matsushita Electric Industrial Co., Ltd. Rotary type electronic component and manufacturing method of the same
US20080185277A1 (en) * 2007-02-02 2008-08-07 Matsushita Electric Industrial Co., Ltd. Operating device and method of manufacture thereof
US7507928B2 (en) * 2007-02-02 2009-03-24 Panasonic Corporation Operating device and method of manufacture thereof

Also Published As

Publication number Publication date
DE2255360A1 (de) 1973-05-17
GB1403986A (en) 1975-08-28
ES185832Y (es) 1974-07-16
AR203079A1 (es) 1975-08-14
CS171271B2 (it) 1976-10-29
FR2159397A1 (it) 1973-06-22
IT970024B (it) 1974-04-10
DE2255360C3 (de) 1979-12-06
FR2159397B1 (it) 1976-08-20
AU4818872A (en) 1974-05-02
ES185832U (es) 1973-10-16
AU470602B2 (en) 1976-03-25
DE2255360B2 (de) 1979-04-12
JPS5247828B2 (it) 1977-12-05
JPS4859383A (it) 1973-08-20
ZA727581B (en) 1973-06-27
CA975833A (en) 1975-10-07

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