US1579092A - Electric snap switch - Google Patents

Electric snap switch Download PDF

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Publication number
US1579092A
US1579092A US696889A US69688924A US1579092A US 1579092 A US1579092 A US 1579092A US 696889 A US696889 A US 696889A US 69688924 A US69688924 A US 69688924A US 1579092 A US1579092 A US 1579092A
Authority
US
United States
Prior art keywords
lever
frame
contact
switch
contacts
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
US696889A
Other languages
English (en)
Inventor
Reamer Frank C De
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.)
General Electric Co
Original Assignee
General Electric Co
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 FR34772D priority Critical patent/FR34772E/fr
Application filed by General Electric Co filed Critical General Electric Co
Priority to US696889A priority patent/US1579092A/en
Priority to FR599550D priority patent/FR599550A/fr
Application granted granted Critical
Publication of US1579092A publication Critical patent/US1579092A/en
Priority to US150612A priority patent/US1723016A/en
Priority to FR35561D priority patent/FR35561E/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00—Brushing, scrubbing, and general cleaning
    • Y10S15/10—Handles, reels and switches

Definitions

  • the present invention relates to electric switches 'and has for its object, to iniprove 'their construction to the end that they shall be small, simple in construction, cheap to manufacture and capable ot withstanding herd usage.
  • One application oi my invention is to vacuum cleaners Where the switch itself is lo cated Within the handle of the cleaner and the actuatoroutside and vis arranged to con trol the circuit of the operating motor.
  • Fig. 1 is .o view in side elevation of e switch
  • Fig.l 2 is auvencl view thereof
  • Fig. 3 is perspective view of the frame
  • Figs. Ivicmi 5 are respectively s sitle and end view of the insulating body which supports the. tired contacts
  • und Fig. G is c side. view showing how the insulating .body is protected from the hiomerblows' of the switch lever.
  • the intermediate portion 1G of v tact is in the closed circuit position.
  • These inclined or eut away parts ire arranged to engage both legs of the switch lever and in this manner, prevent twisting of the lever und the contact.
  • the stop also prevents the Contact or some movable part of the lever from tlelifcring hammer blows on the insulating block which carries the stationary This is clearly shown in Fig. 6. it or about the shoulders or junctions be tween the inclined. surfaces ll of the intermediate portion of the frame and the vertical Walls of-12 the high part T of the trame, the metal is pressed outwardly by e, die operation to vforno two pivots 13 for the lever, one on each side. are formed integral with the frame l there by avoid the use oi additional small parts and therefore. the cost of manufacture 1s re. cuted as well as the cost of assembly.
  • the cost of manufacture 1s re. cuted as well as the cost of assembly.
  • pivots extend only a shortr distance outwartlly from the frame, which arrangement permits the legs ol the lever 8 to be mount ed thereon by merely springing them outwartlly by a. small amount in the essembiy operation.
  • i4 indicates the low portion ot the 'frame and shoulders i5 'ure provided between it :incl the intermediate portion.
  • the ,low portion. of the fingerne. is also U-shepoci in cross section undseatcti therein is e block of insulation 16, the bottom of which snugly lits the sider walls of the frame.
  • the enti ot the block firmly engages the shoulders lo between the low Sind intermediate parte of the frame, the thickness of the block at this point beingslightly greaterthan 'the dist-ance between the outer surfaces oi the frame.
  • he block is held in posit-ion by a. .single countersunk screw 17 inserted from the .upper side.
  • each rivet unites a stationary Sprin Contact 19 with a binding post 20, each o the latter having a screw to hold a circuit wire or conductor.
  • Each stationary contact extends toward the moving switch lever and its bridging contact S) so that when the switch is closed the stationary contacts and the lever occupy positions approximately at right angles to each othern lt is to be especially noted that no portion ot' the stationary contacts, the binding posts or their screws extend outside of the vertical left-hand end ot the block. As a result ot this the overall length of the switch is reduced to a minimum and the instalation of the leads or conductors and the switch parts from their containers, whether it be a tube or other support7 is simplified.
  • each time the switch is closed a certain amount of strain is exerted on the fixed contacts 19 and through them on the rivets 18 due to the fact that there is friction between the relatively movable contacts.
  • the sides of the block are countersunk at 2l as best shown in Figs. #l and 5.
  • a portion of the wall of each countersink is so shaped as to engage 'the curved lower edge 22 of a contact and thereby support it, especially during the circuit closing movement of the switch.
  • the moving parts of the switch will now -be oescribed. ln brief, it may be stated that they comprise a member which carries a. bridging contact and a toggle mechanism for actuating the member so arranged that the center hingey or pivot and the spring are caused to more across the dead center to snap the bridging contact to both its open and closed positions.
  • the bottom wall of the frame is a slot 23 arid located therein is a handle or trigger 24 vhich is mounted on a horizontal pivot 25, tie latter extending through both walls ofthe frame and having a head on one end and deformed or dental withdrawal..
  • the trigger inside the frame the trigger is enlarged to form a head and on opposite sides thereof are shoulders 26 which limit its movements by engaging the bottom wall of the iframe at the respect-ive ends of the trigger movements.
  • the upper end ,of the rod extends through a. hole or guide in a lateral ear 29 formed integral with the cross meniber which connects the legs of the-U-'shaped lever.
  • a coiled compression spring 30 Surrounding the rod and engaging the ear at its upper end and a washer at the other is a coiled compression spring 30.
  • the lever 8 is in the form of an inverted U and isl made of sheet metal by suitable die operations.
  • the lower ends of the legs straddle the frame and move on pivots 13, while the up r and connecting end or member is somewliat narrower than the space between the Side walls of the frame, the upper and lower end portions of each leg being connected b v inclined portions 31 as best shown in Fig. 2, and it isA these portions which Strike the vertical edges et the frame part 7 when the switch opens and which strike the in clined edges l1 of the intermediate part when the switch closes.
  • the distance between the outside surfaces of the contact 9 may be made slightly less than the thickness of the block of insulan tion with the net result that the switch as a whole is very thin and hence occupies only a narrow space in its holder or container.
  • the frame of the switch is secured in the handle or tube of a vacuum cleaner indicated by dotted lines in Fig. l by av pair of small screws which enter thethreaded openings 34, and the trigger extends through a slot in the wall of the handle or tube so as to be accessible froni the outside.
  • the circuit wires or conductors are passed through the handle or tube and the ends connected to the binding posts after which the switch is pushed into the tube or handle to the ⁇ proper position and then heldby screws.
  • afframe which is U-shaped in cross sec- 4 tion and hashigh, low and intermediate side Wall portions, a body ot insulation carriedby' the low portion, ytired contacts on thel sides thereof, a lpnir of outwardly extending plv# ots carrie by the intermediate portion, an inverted U-,shaped lever which straddles the intermediate portion 1nd moves onthe pivots, the movements of the lever in one direction being arrested by the upper edges of the intermediate portion, and in the opposite direction bythe edgeslof the high portion of the frame, an insulatedA Contact carried by.
  • trigger pivoted tothe trame andl a member recesses, the walls of which assist' in porting the fixed jcontacts adjacent their free ends by engaginga portion ofthe edges thereof, ⁇ an inverted U-shaped lever' which Straddles the frame, pivots on the' frame for the lever, a Contact' carried by the lever and insulated therefrom which is adapted to bridge the fixed contactdamltoggle means for moving the bridging contacts by snap action into Land ont of engagement with the fixed contacts.
  • a body of insulation which is seated onv the bottom of the .low portion of the' frame, held by the .walls thereof from turning and firmly engages oneof the shoulders, means for fastening the' body to the bottom of the the sides of the body and extending toyvard'the high portion of the frame, pivotsxcarried bythe intermediate poition of the frame and Iextending outwardly therefrom, an inverted U-shaped lever Whichstraddles the intermediate portion of the frame and is mounted on the pivots, said lever being arrested at the end of one Obits movements by the edges',- 'ot the intermediate portion of the trame, and
  • anelectric switch the combination of a metallici frame, a Ulshaped metallic lever'pivotally su ported at its open ends on the macn, 'a -Uf ilapcd ⁇ bridge contact conformingdn shapeto andA mounted on the free enc/lief the lever, a Ushaped body of insulation-between saidcontact and the free end of the lever, a. pair of spaced contacts located in the ypath of movement of the bridging contact, a body. ot insulation mounted on the frame land having ⁇ recesses in its sides, in which recesses the contacts are secured., the walls of the recesses being' in engagement'with the edges of .the vcontats" for a portion.
  • an actinl ator pivoter on the iramega rodwhioh is hinged to 'thefactuatoiy a-fcoiied compres sion spring'wvhich surrounds the rod, the.
  • a frame which is U-shaped in cross section und has high, low and intermediate side wall portions, n body of insulation sented on the bottoni of the frame between the low leide walls. und having recesses in its si'des, a ixed contact located in Vietnamese of said recesses und Supported for a portion of its length by the side walls thereof, a U-shaped lever pivotally supported at vits, open ends by the .ir-aine, said lever having anlear which extends laterally from the closed end thereof, said ear being provided with a.
  • a U-shape'd bridging Contact mounted on the closed end of the leverA and arranged to bridge the fixed contacts, a rod which extends through the guide opening in the ear, a trigger which is hinged to the rod, and a spring, said rod,.trigger and spring forming a toggle means for moving the lever to curry the bridging Contact into and ont ot' bridging engagement with thefiiced contacts by e snap action, the movement of the lever and bridging Contact being liinited in one direction by the high portion of the Jraine and in the opposite direction by the intermediate portion thereof.

Landscapes

  • Tumbler Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
US696889A 1924-03-04 1924-03-04 Electric snap switch Expired - Lifetime US1579092A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR34772D FR34772E (enrdf_load_stackoverflow) 1924-03-04
US696889A US1579092A (en) 1924-03-04 1924-03-04 Electric snap switch
FR599550D FR599550A (fr) 1924-03-04 1925-03-03 Perfectionnements aux interrupteurs genre
US150612A US1723016A (en) 1924-03-04 1926-11-24 Trigger switch
FR35561D FR35561E (fr) 1924-03-04 1928-01-25 Perfectionnements aux interrupteurs genre tumbler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US696889A US1579092A (en) 1924-03-04 1924-03-04 Electric snap switch

Publications (1)

Publication Number Publication Date
US1579092A true US1579092A (en) 1926-03-30

Family

ID=24798946

Family Applications (2)

Application Number Title Priority Date Filing Date
US696889A Expired - Lifetime US1579092A (en) 1924-03-04 1924-03-04 Electric snap switch
US150612A Expired - Lifetime US1723016A (en) 1924-03-04 1926-11-24 Trigger switch

Family Applications After (1)

Application Number Title Priority Date Filing Date
US150612A Expired - Lifetime US1723016A (en) 1924-03-04 1926-11-24 Trigger switch

Country Status (2)

Country Link
US (2) US1579092A (enrdf_load_stackoverflow)
FR (3) FR599550A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
US1723016A (en) 1929-08-06
FR35561E (fr) 1930-03-26
FR599550A (fr) 1926-01-14
FR34772E (enrdf_load_stackoverflow) 1927-10-21

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