GB1376927A - Timing device for programmers - Google Patents

Timing device for programmers

Info

Publication number
GB1376927A
GB1376927A GB5528971A GB5528971A GB1376927A GB 1376927 A GB1376927 A GB 1376927A GB 5528971 A GB5528971 A GB 5528971A GB 5528971 A GB5528971 A GB 5528971A GB 1376927 A GB1376927 A GB 1376927A
Authority
GB
United Kingdom
Prior art keywords
wheel
lever
pawl
time
timing
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
Application number
GB5528971A
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.)
Thales Avionics SAS
Original Assignee
Crouzet SA
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 Crouzet SA filed Critical Crouzet SA
Publication of GB1376927A publication Critical patent/GB1376927A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/101—Driving mechanisms
    • H01H43/102—Driving mechanisms using a pawl and ratchet wheel mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H01H43/106—Manual programme selecting means

Landscapes

  • Transmission Devices (AREA)
  • Toys (AREA)
  • Gears, Cams (AREA)
  • Mechanical Control Devices (AREA)

Abstract

1376927 Time switches CROUZET 29 Nov 1971 [9 Dec 1970] 55289/71 Heading H1N A programmer wherein a block of cams (not shown), is stepped by a pawl 5 acting on a drive wheel 6 is provided with a timing device adapted to suppress stepping for a preset time period by disengaging the pawl from the drive wheel and said device comprises at least two timing units either one of which can be selected to determine one of at least two different adjustable time periods of suppression. Each timing unit comprises a timing wheel 8<SP>1</SP> returned by a spring 9<SP>1</SP> into engagement with an adjustable abutment 13<SP>1</SP>a, and driven by a wheel 12<SP>1</SP> with at least one tooth 12<SP>1</SP>a and connected by a gear 16<SP>1</SP> to a reduction drive (not shown, but included in the programmer), and also a lever 7<SP>1</SP> one end 7<SP>1</SP>c of which follows a selction cam 10<SP>1</SP> stepped with the block of cams (not shown), such that the other end selectively acts on a second lever 11<SP>1</SP> to allow it to function as a return prevention member for the time wheel 8<SP>1</SP>. The first levers 7<SP>1</SP> and 7 can also act separately on a third lever 4 for disengaging the pawl 5 from the wheel 6 for a period determined by the rotation of the respective time wheel 8<SP>1</SP> or 8. As shown each timing wheel such as 8<SP>1</SP> is held by a spring 9<SP>1</SP> such that a lug 8<SP>1</SP>d abuts an adjustable back stop 13<SP>1</SP>a manually settable by a knob 151. A single-toothed wheel 12<SP>1</SP>a is driven by gears 12<SP>1</SP>, 16<SP>1</SP> the gear 16<SP>1</SP> being axially mated with gear 16 which is driven by reduction gearing (not shown). The ratios of gears 12<SP>1</SP>, 16<SP>1</SP> and 12, 16 are different such that the single teeth 12<SP>1</SP>a and 12a rotate at different speeds. Normally time wheel 81 merely oscillates against the stop 13<SP>1</SP>a, but when nose 7<SP>1</SP>c of lever 7<SP>1</SP> drops to level R3 on a selection cam 10<SP>1</SP> (which is stepped together with selection cam 10 and the block of cams not shown), the lever 11<SP>1</SP> is allowed to act as a pawl on wheel 8<SP>1</SP> which is then stepped steadily by the tooth 12<SP>1</SP>a. Simultaneously nose 7<SP>1</SP>a acts on the bar 18<SP>1</SP> to lift arm 4 and stop the drive from pawl 5 to wheel 6. After a time determined by the speed of tooth 12<SP>1</SP>a and the angular setting of the origin by back stop 13<SP>1</SP>a the nose 7<SP>1</SP>d of lever 71 rides on to a high portion of wheel 8<SP>1</SP> equivalent to that shown at 8g on wheel 8. This allows bar 18<SP>1</SP> to drop somewhat and stepping by pawl 5 recommences. A high tooth similar to 8e is still engaged by nose 11b and prevents the return of wheel 81 which oscillates idly until cam 10<SP>1</SP> lifts lever 7<SP>1</SP> to level R 1 , further lifting lever 11<SP>1</SP> and allowing spring 9<SP>1</SP> to restore wheel 8<SP>1</SP> to its rest position.
GB5528971A 1970-12-09 1971-11-29 Timing device for programmers Expired GB1376927A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7044630A FR2116904A5 (en) 1970-12-09 1970-12-09 MODULAR TIMER ELEMENT FOR PROGRAMMER

Publications (1)

Publication Number Publication Date
GB1376927A true GB1376927A (en) 1974-12-11

Family

ID=9065599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5528971A Expired GB1376927A (en) 1970-12-09 1971-11-29 Timing device for programmers

Country Status (4)

Country Link
DE (1) DE2155354C3 (en)
FR (1) FR2116904A5 (en)
GB (1) GB1376927A (en)
IT (1) IT941124B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7609138B2 (en) 2002-07-31 2009-10-27 Bsh Bosch Und Siemens Hausgeraete Gmbh Rotary selector

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230654B1 (en) 1973-05-21 1975-11-21 Rhone Poulenc Ind
DE2806258A1 (en) * 1978-02-15 1979-08-23 Eaton Gmbh PROGRAM CONTROL UNIT FOR WASHING MACHINES, DISHWASHING MACHINES, ETC.
FR2625232B1 (en) * 1987-12-29 1991-12-06 Crouzet Sa WASHING MACHINE PROGRAMMER
DE3809399A1 (en) * 1988-03-21 1989-10-05 Ako Werke Gmbh & Co Program control mechanism
FR2630557B1 (en) * 1988-04-25 1992-02-14 Crouzet Sa PROGRAMMER FOR ELECTRODOMESTIC MACHINES
DE3918712C2 (en) * 1989-06-08 1996-04-25 Ako Werke Gmbh & Co Electromechanical program switch
FR2663459B1 (en) * 1990-06-19 1992-10-02 Sextant Avionique PROGRAMMER WITH TIMING CAM.
DE4302513C1 (en) * 1993-01-29 1994-06-01 Ako Werke Gmbh & Co Program switch mechanism for dishwashers etc. - comprises integrated preselection system for start time of program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7609138B2 (en) 2002-07-31 2009-10-27 Bsh Bosch Und Siemens Hausgeraete Gmbh Rotary selector

Also Published As

Publication number Publication date
DE2155354B2 (en) 1974-02-07
FR2116904A5 (en) 1972-07-21
DE2155354A1 (en) 1972-06-22
IT941124B (en) 1973-03-01
DE2155354C3 (en) 1974-08-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee