FR2442503A1 - Lever switch for aircraft undercarriage - has lock preventing movement direct from retract to extend position and from neutral to retract when aircraft is grounded - Google Patents
Lever switch for aircraft undercarriage - has lock preventing movement direct from retract to extend position and from neutral to retract when aircraft is groundedInfo
- Publication number
- FR2442503A1 FR2442503A1 FR7832968A FR7832968A FR2442503A1 FR 2442503 A1 FR2442503 A1 FR 2442503A1 FR 7832968 A FR7832968 A FR 7832968A FR 7832968 A FR7832968 A FR 7832968A FR 2442503 A1 FR2442503 A1 FR 2442503A1
- Authority
- FR
- France
- Prior art keywords
- lever
- retract
- stud
- slide
- aircraft
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
Landscapes
- Mechanical Control Devices (AREA)
Abstract
The three position lever switch, for example for aircraft undercarriage control, has a pivoted switch lever (4) with an integral stud which engages in a respective notch in each lever position, the lever (4) being pulled to free the stud and allow movement of the lever (4) between positions. The lever (4) passes through an elongate slot (28) in a plate member (21) pivoted at one end (23), the slot (28) being long enough to accommodate the lever movement, and through an opening (22) in a slide (20) spring coupled to the lever (4). In a first extreme lever position, a stud (24) on the free end of the member (21) engages in a slot (25) in the slide (20). The lever (4) is raised, lifting a stud (30) through the slots (28, 22) and pivoted to its central position, the stud (24) abutting the edge of its slot (25) restricting slide movement and thus limiting lever pivoting. Releasing the lever (4) pivots the member downwardly releasing the slide (20) and allowing further pivoting of the lever (4) to the second extreme position. Movement of the lever (4) from its central to the first extreme position in preselected circumstances is prevented by engagement of an electromagnet armature with the slide (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7832968A FR2442503A1 (en) | 1978-11-22 | 1978-11-22 | Lever switch for aircraft undercarriage - has lock preventing movement direct from retract to extend position and from neutral to retract when aircraft is grounded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7832968A FR2442503A1 (en) | 1978-11-22 | 1978-11-22 | Lever switch for aircraft undercarriage - has lock preventing movement direct from retract to extend position and from neutral to retract when aircraft is grounded |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2442503A1 true FR2442503A1 (en) | 1980-06-20 |
Family
ID=9215200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7832968A Withdrawn FR2442503A1 (en) | 1978-11-22 | 1978-11-22 | Lever switch for aircraft undercarriage - has lock preventing movement direct from retract to extend position and from neutral to retract when aircraft is grounded |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2442503A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386337A (en) * | 2018-02-11 | 2018-08-10 | 海信（山东）冰箱有限公司 | A kind of red wine storage facilities and wine cabinet |
-
1978
- 1978-11-22 FR FR7832968A patent/FR2442503A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386337A (en) * | 2018-02-11 | 2018-08-10 | 海信（山东）冰箱有限公司 | A kind of red wine storage facilities and wine cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |