Transmission having a two-speed planetary gear set
AssigneeMassey-Ferguson Inc.
InventorJean-Claude Van Dest
Life of this patent
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Abstract
A two-speed planetary change gear mechanism 28 is added to a basic eight-speed change gear mechanism to provide a 16-speed transmission, the planetary transmission 28 including a manually operated forward/reverse gear mechanism. The two-speed mechanism is mounted within the housing 16 of the eight-speed mechanism. The forward/reverse mechanism includes a shift coupler 84 engageable with gears 80, 82 mounted about a shaft 78 which is coaxial with the upper shaft 30 of the eight-speed mechanism. The input gear 86 which is driven by the forward/reverse gears 80, 82 is mounted on the second shaft 38. The two-speed planetary gear set 96 is coupled on its input side to input shaft 98 and on its output side to shaft 78.
Claims5
In a transmission (14) having
- a first change gear mechanism (26) including first and second parallel shafts (30, 34) carrying a plurality of intermeshing gear sets (36) and an input gear (86);
- and
- a housing (16) for the first change gear mechanism (26);
- the improvement comprising a support (60) removably supported within the housing (16), a second change gear mechanism (28) carried by said support (60), the second change gear mechanism (28) including a rotatable third shaft (78), a forward/reverse gear mechanism including a pair of gears (80, 82) rotatably journaled about the third shaft (78) and capable of selectively interconnecting the rotatable third shaft (78) with the input gear (86) to drive the same, and a two-speed planetary gear set (96) in driving relationship with the third shaft (78).
Dependencies are inferred from the claim text.