GB1521222A - Electric switches - Google Patents
Electric switchesInfo
- Publication number
- GB1521222A GB1521222A GB832276A GB832276A GB1521222A GB 1521222 A GB1521222 A GB 1521222A GB 832276 A GB832276 A GB 832276A GB 832276 A GB832276 A GB 832276A GB 1521222 A GB1521222 A GB 1521222A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- switch
- safety member
- arm
- march
- 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
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
- H01H13/14—Operating parts, e.g. push-button
- H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Landscapes
- Mechanisms For Operating Contacts (AREA)
Abstract
1521222 Snap-action switches A CROSBY 1 March 1977 [2 March 1976] 08322/76 Heading H1N A switch wherein cam means 16 operable from outside the casing 1 moves a lever 9 which snaps a metal switch arm 4 by means of a coil spring 8 so that a contact 19 thereon engages a fixed contact 7 has a safety member 14 carried by the cam 16 such that it lies in the path of arm 4 thereby preventing accidental engagement of the contacts 19, 7 by mechanical shock, the safety member 14 being removed from the path on operation of the cam means. As shown cam 16 is on a spindle 15 and is rotatable by a wire 18, while the safety member is a spigot 14 attached to the cam 16. The relative mounting of switch arm 4, lever 9 and spring 8 is such that the switch retracts on release of wire 18.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB832276A GB1521222A (en) | 1977-03-01 | 1977-03-01 | Electric switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB832276A GB1521222A (en) | 1977-03-01 | 1977-03-01 | Electric switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1521222A true GB1521222A (en) | 1978-08-16 |
Family
ID=9850317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB832276A Expired GB1521222A (en) | 1977-03-01 | 1977-03-01 | Electric switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1521222A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4559422A (en) * | 1982-06-21 | 1985-12-17 | Mironenko Vyacheslav G | Microswitch |
-
1977
- 1977-03-01 GB GB832276A patent/GB1521222A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4559422A (en) * | 1982-06-21 | 1985-12-17 | Mironenko Vyacheslav G | Microswitch |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |