US3037099A - Micro switch - Google Patents

Micro switch Download PDF

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Publication number
US3037099A
US3037099A US818217A US81821759A US3037099A US 3037099 A US3037099 A US 3037099A US 818217 A US818217 A US 818217A US 81821759 A US81821759 A US 81821759A US 3037099 A US3037099 A US 3037099A
Authority
US
United States
Prior art keywords
recess
switch
micro switch
snap
block
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 - Lifetime
Application number
US818217A
Other languages
English (en)
Inventor
Aandewiel Cornelis Johan
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3037099A publication Critical patent/US3037099A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/58—Means for varying duration of "open" period of shutter
    • 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
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member

Definitions

  • This invention relates to a micro switch, the switch body of which comprises a block of insulating material having current conductors hermetically sealed therein, which current conductors are accessible from the outside and end in a recess provided in one of the flat walls of the switch body, said recess containing the snap-action mechanism cooperating with said current conductors and being closed by a cover secured to the switch body in sealin g relationship therewith.
  • the object of the invention is to eliminate the drawbacks attaching to known micro switches by providing an improved construction of the micro switch of the type referred to hereinbefore.
  • the micro switch according to the invention is characterized in that said switch body comprises a second recess likewise closed by said cover, said second recess being hermetically sealed from the first mentioned recess and containing the mechanism for actuating the snap-action mechanism, the operating shaft of which actuating mechanism passes through the cover in sealing relationship therewith and extends into the path of movement of said actuating mechanism.
  • the cover may consist of two interconnected parts, one of which is so formed as to constitute a bearing for the operating shaft of the snap-action mechanism.
  • FIGURE 1 is a vertical longitudinal sectional view of the micro switch
  • FIGURE 2 is a horizontal sectional view according to line IIII in FIGURE 1;
  • FIGURE 3 is a vertical sectional view on line III-III in FIGURE 1.
  • the micro switch comprises a switch body 1, preferably made from a castable synthetic material, such as Perspex, a trademark registered to Imperial Chemical Industries Limited.
  • Current conductors 2, 3 and 4 are hermetically sealed in the switch body 1.
  • Said current conductors are accessible from the outside for connecting a circuit thereto and they end in a recess 5 provided in one of the flat walls of the switch body 1.
  • Said recess 5 contains a snap-action mechanism cooperating with the current conductors and comprising a resilient conducting strip 6, an operating arm 7 rotatably supported at its one end and a leaf spring 8 bent in the shape of a U interposed between the strip 6 and the arm 7.
  • the conducting strip 6 has its one end connected to the current conductor 2 and its other end is movable between the current conductors 3 and 4.
  • the element '9 supporting the operating arm 7 is mounted for rotation about the axis 3,037,099 Patented May 29, 1962 "ice of the operating shaft 10, which is U-shaped and the leg #11 of which extends into a second recess 16 in the body 1. In this recess, the end of the leg 11 is engaged by and is actuated by a spring-loaded push-button 12.
  • the recess 5 in the switch body in which the snap-action mechanism is accommodated is moisture proof sealed by a cover which in the embodiment comprises the part 13 in the form of a bearing through which the actuating shaft 10 passed in sealing relationship therewith and the part 14.
  • This construction of the cover offers the advantage that the snap-action mechanism can be mounted and its correct action can be checked before the recess 5' is finally and entirely sealed.
  • the switch body 1 thus provided with all of its parts is finally mounted in a casing 15, preferably made from metal, which casing at the same time serves as a support for the push-or actuating button 12.
  • a micro switch which can be made from a minimum number of parts, which admits of being assembled in an exceedingly simple manner, whose operative parts can be adjusted with great accuracy until the moment when the mechanism is sealed from the atmosphere and whose vulnerable parts are adequately protected from harmful atmospheric influences.
  • a micro switch the switch body of which comprises a block of solid insulating material having current conductors hermetically sealed therein, said block having a first recess therein opening out of one side of said block, said current conductors extending from the outside of the block and ending in said first recess, a snap-action switch mechanism in said first recess cooperating with said current conductors, said switch mechanism having an actuating shaft rotatable about its own axis, a sealing bearing over at least part of the opening of said first recess in which said shaft is rotatably mounted and flush with the surface of said block, said switch body having a second recess therein adjacent said first recess and separated therefrom and opening out of said one side of said block, a rigid sealing cover on said one side of said block and having a recess in the surface thereof extending from said one recess in said block to the other recess in said block and sealing said one recess, said shaft having an end extending along said recess in said cover and into said second
  • a micro switch as claimed in claim 1 in which said second recess opens out of another side of said block and has a further cover sealed thereover, said actuating means extending through said cover and being in sealing relationship therewith.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
US818217A 1958-06-04 1959-06-04 Micro switch Expired - Lifetime US3037099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL856222X 1958-06-04

Publications (1)

Publication Number Publication Date
US3037099A true US3037099A (en) 1962-05-29

Family

ID=19847256

Family Applications (1)

Application Number Title Priority Date Filing Date
US818217A Expired - Lifetime US3037099A (en) 1958-06-04 1959-06-04 Micro switch

Country Status (4)

Country Link
US (1) US3037099A (enrdf_load_stackoverflow)
FR (1) FR1226240A (enrdf_load_stackoverflow)
GB (1) GB856222A (enrdf_load_stackoverflow)
NL (2) NL97083C (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236966A (en) * 1962-01-08 1966-02-22 Bresson Faille Marchand Ets Resettable actuator
US3286050A (en) * 1964-10-21 1966-11-15 Gen Motors Corp Snap action, double throw switch
US3426168A (en) * 1965-07-16 1969-02-04 Jennings Radio Mfg Corp Manually operated encapsulated single pole-double throw high voltage vacuum switch
US3501187A (en) * 1968-08-15 1970-03-17 John A Saksa Auto-safety sleeve
US3541288A (en) * 1969-01-27 1970-11-17 Mc Gill Mfg Co Splash-proof electrical switch
US4543459A (en) * 1982-12-20 1985-09-24 Hosiden Electronics Co., Ltd. Small-sized switch
US5164561A (en) * 1990-04-12 1992-11-17 Marquardt Gmbh Push button switch having sealing bellows
US20150188258A1 (en) * 2011-10-18 2015-07-02 Gigavac, Llc Hermetically sealed manual disconnect

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287670B (enrdf_load_stackoverflow) * 1960-05-30 1969-01-23

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532000A (en) * 1950-11-28 Cam operated switch contact
US2748220A (en) * 1955-04-29 1956-05-29 Tait Mfg Co The Sealed float switch
US2794889A (en) * 1953-11-20 1957-06-04 D W Price Hermetically sealed switch
US2842644A (en) * 1956-04-30 1958-07-08 Haydon Switch Inc Hermetically sealed switch assembly
GB805683A (en) * 1956-03-01 1958-12-10 Dowty Equipment Ltd Improvements in snap-action electric switches

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532000A (en) * 1950-11-28 Cam operated switch contact
US2794889A (en) * 1953-11-20 1957-06-04 D W Price Hermetically sealed switch
US2748220A (en) * 1955-04-29 1956-05-29 Tait Mfg Co The Sealed float switch
GB805683A (en) * 1956-03-01 1958-12-10 Dowty Equipment Ltd Improvements in snap-action electric switches
US2842644A (en) * 1956-04-30 1958-07-08 Haydon Switch Inc Hermetically sealed switch assembly

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3236966A (en) * 1962-01-08 1966-02-22 Bresson Faille Marchand Ets Resettable actuator
US3286050A (en) * 1964-10-21 1966-11-15 Gen Motors Corp Snap action, double throw switch
US3426168A (en) * 1965-07-16 1969-02-04 Jennings Radio Mfg Corp Manually operated encapsulated single pole-double throw high voltage vacuum switch
US3501187A (en) * 1968-08-15 1970-03-17 John A Saksa Auto-safety sleeve
US3541288A (en) * 1969-01-27 1970-11-17 Mc Gill Mfg Co Splash-proof electrical switch
US4543459A (en) * 1982-12-20 1985-09-24 Hosiden Electronics Co., Ltd. Small-sized switch
US5164561A (en) * 1990-04-12 1992-11-17 Marquardt Gmbh Push button switch having sealing bellows
US20150188258A1 (en) * 2011-10-18 2015-07-02 Gigavac, Llc Hermetically sealed manual disconnect
US10096942B2 (en) * 2011-10-18 2018-10-09 Gigavac, Llc Hermetically sealed manual disconnect

Also Published As

Publication number Publication date
NL228403A (enrdf_load_stackoverflow)
GB856222A (en) 1960-12-14
FR1226240A (fr) 1960-07-08
NL97083C (enrdf_load_stackoverflow)

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