Global Patent Index - EP 1264122 A1

EP 1264122 A1 20021211 - SYNCHRONISED REVERSE GEARBOX

Title (en)

SYNCHRONISED REVERSE GEARBOX

Title (de)

WECHSELGETRIEBE MIT SYNCHRONISIERTEM RÜCKWÄRTSGANG

Title (fr)

BOITE DE VITESSES A MARCHE ARRIERE SYNCHRONISEE

Publication

EP 1264122 A1 20021211 (FR)

Application

EP 00910974 A 20000317

Priority

FR 0000651 W 20000317

Abstract (en)

[origin: WO0169104A1] The invention concerns a gearbox (10) comprising at least a shift torque shaft (18) bearing a first stationary reverse gear (42) with straight bevel and a fourth stationary forward gear (28), and a transmission main shaft (22) bearing a second stationary reverse gear (46) with straight bevel and a third forward idler gear (30) adapted to be synchronised by an axial synchromesh (34) then interlocked on the transmission main shaft (22), and wherein a countershaft (45) bearing a stationary reverse idler gear (44) with straight bevel slides axially to mesh the idler gear (44) with the first (42) and second (46) gears. The invention is characterised in that it comprises controlled means to brake the shift torque shaft (18) with the forward gear synchromesh (34), to synchronise the speeds of the stationary reverse and forward gears (42, 44, 46) before they are mutually meshed. The invention is applicable to a robot control gearbox.

IPC 1-7

F16H 3/12; F16H 3/38; F16H 63/30

IPC 8 full level

F16H 3/12 (2006.01); F16H 3/38 (2006.01); F16H 63/30 (2006.01)

CPC (source: EP)

F16H 3/12 (2013.01); F16H 3/385 (2013.01); F16H 63/302 (2013.01)

Citation (search report)

See references of WO 0169104A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0169104 A1 20010920; EP 1264122 A1 20021211

DOCDB simple family (application)

FR 0000651 W 20000317; EP 00910974 A 20000317