IL40420A - An electrical circuit-breaker - Google Patents
An electrical circuit-breakerInfo
- Publication number
- IL40420A IL40420A IL40420A IL4042072A IL40420A IL 40420 A IL40420 A IL 40420A IL 40420 A IL40420 A IL 40420A IL 4042072 A IL4042072 A IL 4042072A IL 40420 A IL40420 A IL 40420A
- Authority
- IL
- Israel
- Prior art keywords
- movable contact
- lever
- contact member
- axle
- breaker
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2066—Fork-shaped bridge; Two transversally connected contact arms bridging two fixed contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
Landscapes
- Breakers (AREA)
Claims (5)
1. An electrical circuit-breaker comprising a housing, fixed and movable contact members and a breaker mechanism for actuating the movable contact member, said breaker mechanism including a pivotable handle for manual operation of the breaker, a first axle fixed in the housing, a first lever with tvo arms standing nearly at an angle of 90°C to each other, the summit of the angle coinciding almost with the axle, one arm of said lever being connected with the movable contact member and the other arm being coupled, in the direction of movement for closing the contacts, with a second lever by a pawl, said second lever being also carried by said axle and being operatively connected with said handle, spring means for urging said first lever in a direction to open the contacts, and an electro-magnetic short-circuit release being arranged within the space confined by the tvo arms of the first lever, said short-circuit release being capable of disengaging said pavl, characterized by the fact that the two arms of the first lever are of unequal length, said pawl cooperating with the longer arm of said first lever, the movable contact member being pivotably connected to the shorter arm of the first lever by means of a second axle, the movable contact member having a backward extension extending beyond said second axle, said spring means comprising at least one coil spring arranged on said first axle and having outwardly extending legs, one of which presses on the backward extension of the movable contact member for producing a contact pressure between said fixed and movable contact members as the contacts are closed, and the electro - 9 - magnetic short-circuit release having an armature arranged for knocking avay the movable contact member from the fixed contact member simultaneously with disengaging of the pawl.
2. A circuit-breaker according to Claim 1, wherein the coil spring carried by the first axle has a middle outwardly extending leg which presses on the backward extension of the movable contact member, two halves of the spring being arranged on opposite sides of the middle leg and being wound in opposite senses.
3. A circuit-breaker according to claim 1 or 2, wherein the second axle carrying the movable contact member has sufficient play in the first lever and the movable contact member has sufficient lateral distance from the first lever to permit the movable contact member to be rocked aroung its length direction over at least + 10° during closing motion of the movable contact member.
4. A circuit-breaker according to any one of Claims 1 to 3, which is equipped with two second levers extending parallel to one another, between which the pawl is pivotably suspended.
5. A circuit-breaker according to any one of the claims 1 to 4, wherein the first lever afteries two movable contact members which are electrically connected by a flexible connection. An electrical circuit-breaker, substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1437771A CH543173A (en) | 1971-09-30 | 1971-09-30 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL40420A0 IL40420A0 (en) | 1972-11-28 |
| IL40420A true IL40420A (en) | 1976-02-29 |
Family
ID=4400291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL40420A IL40420A (en) | 1971-09-30 | 1972-09-24 | An electrical circuit-breaker |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3796860A (en) |
| JP (1) | JPS5647657B2 (en) |
| AT (1) | AT332482B (en) |
| BE (1) | BE789211A (en) |
| CH (1) | CH543173A (en) |
| DE (1) | DE2158752C2 (en) |
| DK (1) | DK136746B (en) |
| ES (1) | ES407279A1 (en) |
| FR (1) | FR2154627B1 (en) |
| GB (1) | GB1388599A (en) |
| IL (1) | IL40420A (en) |
| IT (1) | IT967720B (en) |
| NL (1) | NL169390C (en) |
| SE (1) | SE375184B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4895540U (en) * | 1972-02-18 | 1973-11-14 | ||
| JPS5329252U (en) * | 1976-08-19 | 1978-03-13 | ||
| DE3021867A1 (en) * | 1980-06-11 | 1981-12-17 | Brown, Boveri & Cie Ag, 6800 Mannheim | SELF-SWITCH |
| DE3031482A1 (en) * | 1980-08-21 | 1982-04-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | SWITCHING MECHANISM FOR CIRCUIT BREAKER |
| DE3530635A1 (en) * | 1985-08-28 | 1987-03-12 | Bbc Brown Boveri & Cie | REAR DERAILLEUR FOR AN ELECTRICAL SWITCH |
| JP4778377B2 (en) * | 2006-07-26 | 2011-09-21 | パナソニック電工電路株式会社 | Circuit breaker |
-
1971
- 1971-09-30 CH CH1437771A patent/CH543173A/en not_active IP Right Cessation
- 1971-11-26 DE DE2158752A patent/DE2158752C2/en not_active Expired
-
1972
- 1972-09-08 AT AT771272A patent/AT332482B/en active
- 1972-09-22 IT IT29497/72A patent/IT967720B/en active
- 1972-09-22 BE BE789211D patent/BE789211A/en not_active IP Right Cessation
- 1972-09-24 IL IL40420A patent/IL40420A/en unknown
- 1972-09-25 US US00292132A patent/US3796860A/en not_active Expired - Lifetime
- 1972-09-26 ES ES407279A patent/ES407279A1/en not_active Expired
- 1972-09-27 FR FR7234121A patent/FR2154627B1/fr not_active Expired
- 1972-09-27 GB GB4451972A patent/GB1388599A/en not_active Expired
- 1972-09-28 JP JP9668772A patent/JPS5647657B2/ja not_active Expired
- 1972-09-29 NL NLAANVRAGE7213268,A patent/NL169390C/en not_active IP Right Cessation
- 1972-09-29 DK DK485572AA patent/DK136746B/en not_active IP Right Cessation
- 1972-09-29 SE SE7212610A patent/SE375184B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2158752C2 (en) | 1973-11-29 |
| DK136746C (en) | 1978-05-01 |
| IT967720B (en) | 1974-03-11 |
| ES407279A1 (en) | 1975-10-16 |
| DE2158752A1 (en) | 1973-05-10 |
| JPS5647657B2 (en) | 1981-11-11 |
| CH543173A (en) | 1973-10-15 |
| DK136746B (en) | 1977-11-14 |
| US3796860A (en) | 1974-03-12 |
| NL169390B (en) | 1982-02-01 |
| BE789211A (en) | 1973-01-15 |
| DE2158752B1 (en) | 1973-05-10 |
| ATA771272A (en) | 1976-01-15 |
| NL7213268A (en) | 1973-04-03 |
| FR2154627A1 (en) | 1973-05-11 |
| NL169390C (en) | 1982-07-01 |
| IL40420A0 (en) | 1972-11-28 |
| GB1388599A (en) | 1975-03-26 |
| SE375184B (en) | 1975-04-07 |
| AT332482B (en) | 1976-09-27 |
| FR2154627B1 (en) | 1978-12-01 |
| JPS4842367A (en) | 1973-06-20 |
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