| 摘要 |
A gear change actuator (40) including first and second rotary members (54) each rotatable in opposite first and second directions, the rotary members (54) engaged with a select unit (60), which is engaged with an output member (162) having an output axis. The select unit (60) has opposite first and second input motions, and opposite third and fourth input motions, induced by simultaneous rotation of the first and second rotary members (54. The select unit (60) has opposite first and second output movements that are transmutations of the select unit (60) first and second input motions, respectively. The select unit (60) also has opposite third and fourth output movements that are transmutations of the select unit third and fourth input motions, respectively. The output member (162) has movements, respectively imparted by the select unit (60) output movements, that are one of rotationally about the output axis and axially along the output axis. |
| 主权项 |
1. A gear change actuator (40) for use with a change-gear transmission (42), comprising:
an output member (162, 168) having an output axis (164), said output member (162, 168) adapted for changing between different gear shifter positions in a transmission (42) through movement of said output member (162, 168) relative to said output axis (164); a select unit (60) operably engaged with said output member (162, 168), said select unit (60) having opposite first and second output movements and opposite third and fourth output movements, a respective one of a plurality of different movements of said output member (162, 168) relative to said output axis (164) being imparted to said output member (162, 168) by a respective one of said first, second, third and fourth output movements; a first motor (46, 48) having a drive axis (56) and comprising a first rotary member (54), said first rotary member (54) capable of rotation in opposite first and second directions about said first motor drive axis (56); a second motor (46, 48) having a drive axis (56) and comprising a second rotary member (54), said second rotary member (54) capable of rotation in opposite first and second directions about said second motor drive axis (56); said first and second rotary members (54) operably engaged with said select unit (60) and having simultaneous rotation of their respective drive axes during operation of said actuator (40); said select unit (60) having a first input motion induced by simultaneous rotation of said first and second rotary members (54) each in one of its respective first and second directions to facilitate said first output movement, and a second input motion, opposite said first input motion, induced by simultaneous rotation of said first and second rotary members (54) each in the other of its respective first and second directions to facilitate said second output movement; and said select unit (60) having a third input motion induced by simultaneous rotation of said first rotary member (54) in said other of its respective first and second directions and of said second rotary member (54) in said one of said respective first and second directions to facilitate said third output movement, and a fourth input motion induced by simultaneous rotation of said first rotary member (54) in said one of its respective first and second directions and of said second rotary member (54) in said other of its respective first and second directions to facilitate said fourth output movement; wherein movements of said output member respectively imparted by said first and second output movements of said select unit are one of rotationally about said output axis and axially along said output axis (164), and movements of said output member respectively imparted by said third and fourth output movements of said select unit are the other of rotationally about said output axis (164) and axially along said output axis; wherein said select unit (60) comprises an input member (120, 122) having a central axis (140), said input member (120, 122) being disposed between said first and second rotary members (54) and operably engaged therewith; wherein said first and second input motions of said select unit each comprise a rotation of said input member (120, 122) about said central axis (140); and wherein third and fourth input motions of said select unit each comprise movement of said input member (120, 122) in a lateral direction relative to said central axis (140). |
