GB945169A - Electric switch-actuating mechanism - Google Patents

Electric switch-actuating mechanism

Info

Publication number
GB945169A
GB945169A GB3503160A GB3503160A GB945169A GB 945169 A GB945169 A GB 945169A GB 3503160 A GB3503160 A GB 3503160A GB 3503160 A GB3503160 A GB 3503160A GB 945169 A GB945169 A GB 945169A
Authority
GB
United Kingdom
Prior art keywords
plungers
plunger
primary
switches
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
GB3503160A
Inventor
Eric Daniel Quiddington
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.)
Ericsson Telephones Ltd
Original Assignee
Ericsson Telephones 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 Ericsson Telephones Ltd filed Critical Ericsson Telephones Ltd
Priority to GB3503160A priority Critical patent/GB945169A/en
Publication of GB945169A publication Critical patent/GB945169A/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
    • H01H13/70—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
    • H01H13/72—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 wherein the switch has means for limiting the number of operating members that can concurrently be in the actuated position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles
    • H04M1/08—Hooks; Cradles associated with switches operated by the weight of the receiver or hand-set

Abstract

945,169. Keyboard switches; switches held set and freed mechanically; press-button retractive switches. ERICSSON TELEPHONES Ltd. Oct. 10, 1961 [Oct. 13, 1960], No. 35031/60. Heading H2B. A switch-actuating mechanism comprises a system of primary plungers such as 14, 16, 17, mounted in line with their long axes parallel, each such primary plunger when displaced directly performing a switching operation, and at least one such plunger, e.g. 14 or 16, being further displaceable to displace at least one other secondary plunger such as 15, which performs a further switching operation. Plunger 17 has an integral rib 21 projecting through a slot 13 in a support-plate 10 and is depressible against spring 18 until nib 21 is latched by a latching mechanism 20, the downward movement of plunger 17 causing a cam face 23 thereon to bear on cam follower 28 of a spring blade 25 to cause making of a contact 29 via an operating comb 27 supported by spring blades 25, 26, of a springset assembly 19. Plungers 14, 16, one similarly latched and further depression of either of these plungers operates the secondary plunger 15, which is retractive. Further embodiments use pins passing through the upper ends of the primary plungers and engaging in U-shaped slots in the secondary plungers to give another method of actuation thereof (Figs. 4, 5, not shown). The primary plungers may be coupled together so as to be operable as a unit (Figs. 6a, 6b, not shown).
GB3503160A 1960-10-13 1960-10-13 Electric switch-actuating mechanism Expired GB945169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3503160A GB945169A (en) 1960-10-13 1960-10-13 Electric switch-actuating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3503160A GB945169A (en) 1960-10-13 1960-10-13 Electric switch-actuating mechanism

Publications (1)

Publication Number Publication Date
GB945169A true GB945169A (en) 1963-12-23

Family

ID=10372984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3503160A Expired GB945169A (en) 1960-10-13 1960-10-13 Electric switch-actuating mechanism

Country Status (1)

Country Link
GB (1) GB945169A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068483A1 (en) * 1981-06-30 1983-01-05 Siemens Aktiengesellschaft Electromechanical switch for telephone apparatuses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0068483A1 (en) * 1981-06-30 1983-01-05 Siemens Aktiengesellschaft Electromechanical switch for telephone apparatuses

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