GB1489919A - Electrical switches - Google Patents

Electrical switches

Info

Publication number
GB1489919A
GB1489919A GB45302/74A GB4530274A GB1489919A GB 1489919 A GB1489919 A GB 1489919A GB 45302/74 A GB45302/74 A GB 45302/74A GB 4530274 A GB4530274 A GB 4530274A GB 1489919 A GB1489919 A GB 1489919A
Authority
GB
United Kingdom
Prior art keywords
contact
actuator
spring
board
oct
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
GB45302/74A
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.)
Individual
Original Assignee
Individual
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
Priority to DE7336262U priority Critical patent/DE7336262U/en
Priority to DE2350436A priority patent/DE2350436B2/en
Priority to DK518274A priority patent/DK142594C/en
Application filed by Individual filed Critical Individual
Priority to GB45302/74A priority patent/GB1489919A/en
Publication of GB1489919A publication Critical patent/GB1489919A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard

Landscapes

  • Push-Button Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

1489919 Mechanical switches R L ANDREWS (Walter Preh GmbH) 18 Oct 1974 [8 Oct 1973] 45302/74 Heading H1N An electrical switch comprises an actuator 8, Fig. 1, passed through a washer-like contact member 14 normally spring urged away at an inclined angle from a fixed contact on a supporting board 2 and moved by the actuator 8 against spring 20 to initially engage a first contact on the board 2 and then to change its inclination as it moves to engage a further contact. The arrangement is such that the change in inclination of the contact 14 results in a cleaning wiping action. The actuator shaft 9 is of D section for sliding engagement with a D section aperture 18, Fig. 5, in the movable contact 14 to prevent relative rotation. A projection 19 on the contact 14 slides in a groove 12 in the flat of the actuator 8 and engages a stop (9<SP>1</SP>) eccentrically of the shaft 9 and spring 20 whereby it is normally held inclined by the spring 20. The contact 14 has three bent-up lugs 16, 16, 17 two of which are longer and make the initial engagement with the board 2 followed by the shorter lug 17.
GB45302/74A 1973-10-08 1974-10-18 Electrical switches Expired GB1489919A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE7336262U DE7336262U (en) 1973-10-08 1973-10-08 Electric key switch
DE2350436A DE2350436B2 (en) 1973-10-08 1973-10-08 Electric key switch
DK518274A DK142594C (en) 1973-10-08 1974-10-02 ELECTRICAL KEY CONTACT
GB45302/74A GB1489919A (en) 1973-10-08 1974-10-18 Electrical switches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2350436A DE2350436B2 (en) 1973-10-08 1973-10-08 Electric key switch
GB45302/74A GB1489919A (en) 1973-10-08 1974-10-18 Electrical switches

Publications (1)

Publication Number Publication Date
GB1489919A true GB1489919A (en) 1977-10-26

Family

ID=25765916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45302/74A Expired GB1489919A (en) 1973-10-08 1974-10-18 Electrical switches

Country Status (3)

Country Link
DE (2) DE2350436B2 (en)
DK (1) DK142594C (en)
GB (1) GB1489919A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007239C2 (en) * 1980-02-27 1985-02-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Keyboard with a large number of key sections

Also Published As

Publication number Publication date
DK142594C (en) 1981-07-27
DE2350436B2 (en) 1980-04-03
DK142594B (en) 1980-11-24
DE2350436A1 (en) 1975-04-10
DK518274A (en) 1975-06-09
DE7336262U (en) 1974-02-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee