EP 3908510 A1 20211117 - MECHANICAL REDUCTION GEAR
Title (en)
MECHANICAL REDUCTION GEAR
Title (de)
MECHANISCHES UNTERSETZUNGSGETRIEBE
Title (fr)
REDUCTEUR
Publication
Application
Priority
- FR 1900164 A 20190108
- FR 2019000195 W 20191203
Abstract (en)
[origin: WO2020144410A1] The invention relates to a mechanical reduction gear (5) comprising an outer ring (55) having a pitch circle diameter D55, at least one planetary gear (51, 52, 53, 51',52') having a pitch circle diameter D50 for rotating inside the ring with an excentricity "e" equal to half of the difference between diameter D55 and diameter D50; e = ½(D55 - D50); wherein said at least one planetary gear (51, 52, 53, 51',52') is maintained between the two flanges (573, 574, 573', 574') of a carrier (57); said at least one planetary gear (51, 52, 53, 51',52') has at least three circular openings (502) of diameter D502, each of them being traversed by a small shaft (575) of diameter D575 which is substantially equal to the diameter of the circular opening (502), D502, minus the double of the excentricity "e", D575 = D502-(2 x e); characterized in that the at least three small shafts (575) are mounted in a rotatable manner with respect to the carrier (57) with the aid of small bearings (576, 577) housed in said flanges (573, 574, 573', 574') of the carrier (57).
IPC 8 full level
B62M 6/55 (2010.01); B62M 11/14 (2006.01); F16H 1/32 (2006.01)
CPC (source: EP)
B62K 19/34 (2013.01); B62M 6/55 (2013.01); B62M 11/14 (2013.01)
Citation (search report)
See references of WO 2020144410A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 3091516 A1 20200710; FR 3091516 B1 20220715; EP 3908510 A1 20211117; EP 3908511 A2 20211117; WO 2020144410 A1 20200716; WO 2020144411 A2 20200716; WO 2020144411 A3 20201029
DOCDB simple family (application)
FR 1900164 A 20190108; EP 19835435 A 20191203; EP 19894393 A 20191203; FR 2019000195 W 20191203; FR 2019000196 W 20191203