Explosion-proof cross-type limit switch
US10192692B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2015 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Feb 25, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H21/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cross-type limit switch (10) with a housing (12) that contains a gear mechanism (24) that includes a cover plate (38), base plate (48), and intermediate plate (42). The intermediate plate (42) has first and second cutouts (44, 46) within which respective gearwheels (54, 58) are arranged. The first and second gear wheels (54, 58) have respective plugthrough openings (56, 60), and a shaft (20) coupled to an actuating lever (18) outside the housing is rotatably mounted in a first bearing arrangement (22) connected to the housing. The actuating lever shaft (20) extends through the first plugthrough opening (56) of the first gear wheel (54) for rotating and radially locating the first gear wheel (54). A rotary switch (30) arranged in the housing (12) has a switch shaft (138) rotatably mounted in a second bearing arrangement (106, 34) that extend through the second plugthrough opening (60) of the second gearwheel for rotating and radially locating the second gearwheel (58).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.