GB688447A - Improvements in or relating to foot-operated electric switch-actuating means - Google Patents

Improvements in or relating to foot-operated electric switch-actuating means

Info

Publication number
GB688447A
GB688447A GB15590/51A GB1559051A GB688447A GB 688447 A GB688447 A GB 688447A GB 15590/51 A GB15590/51 A GB 15590/51A GB 1559051 A GB1559051 A GB 1559051A GB 688447 A GB688447 A GB 688447A
Authority
GB
United Kingdom
Prior art keywords
switch
groove portion
groove
foot
relating
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
GB15590/51A
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.)
Van Der Heem BV
Original Assignee
Van Der Heem BV
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 Van Der Heem BV filed Critical Van Der Heem BV
Publication of GB688447A publication Critical patent/GB688447A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/245—Operating parts, e.g. handle biased to return to normal position upon removal of operating force the contact returning to its original state upon the next application of operating force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot

Landscapes

  • Push-Button Switches (AREA)
  • Tumbler Switches (AREA)

Abstract

688,447. Snap-action switches. VAN DER HEEM N. V. July 2, 1951 [June 30, 1950], No. 15590/51. Class 38 (v) A foot-operated switch of the "successive actuation" type comprises a foot operated member 1 pivoted on a shaft 7 and having a slot 4 containing a resilient member 6 engaging in a groove in a reciprocable part 9, the latter engaging the lever 13 of a tumbler switch 2. The groove has an arcuate portion 10, a portion 12 having a U-shaped part and a portion 11, the bottom of which is inclined so as to provide a shoulder at the side of the portion 10. When the member 1 is depressed against the action of a spring 8, the end of the resilient member 6 is constrained to move in the groove portion 10 until it enters the groove portion 12, the bias of the member 6 causing its end to move into the centre of the U-shaped part. On the release of the member 1, the member 6 moves the part 9 to the right to actuate the switch. On the subsequent depression of the member 1 the part 9 is moved back to the left by the member 6 to restore the switch to its initial position, and at the same time the end of the member 6 moves along the groove portion 12 to the end of the groove portion 11, so that when the member 1 is released, the end of the member 6 is moved along the groove portion 11 into the groove portion 10 without moving the part 9. An indicator plate 14, visible through a window in the apparatus in which the switch is fixed, may be fixed to the part 9.
GB15590/51A 1950-06-30 1951-07-02 Improvements in or relating to foot-operated electric switch-actuating means Expired GB688447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL688447X 1950-06-30

Publications (1)

Publication Number Publication Date
GB688447A true GB688447A (en) 1953-03-04

Family

ID=19805738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15590/51A Expired GB688447A (en) 1950-06-30 1951-07-02 Improvements in or relating to foot-operated electric switch-actuating means

Country Status (5)

Country Link
BE (1) BE503983A (en)
DE (1) DE857225C (en)
FR (1) FR1038435A (en)
GB (1) GB688447A (en)
NL (2) NL154519B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622319A1 (en) * 1986-07-03 1988-01-14 Jung Albrecht Fa Switch construction like a rocker switch having a switching mechanism for conversion to a push-button switch

Also Published As

Publication number Publication date
NL72420C (en)
FR1038435A (en) 1953-09-28
DE857225C (en) 1952-11-27
NL154519B (en)
BE503983A (en)

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