Drive system
OwnerKen Yanagisawainventor
Life of this patent
Estimating the term…
Abstract
A drive system comprises a pair of racks provided in a first direction, a pair of travellers, each of which is capable of moving in the first direction alongside each rack, a connecting member provided in a second direction perpendicular to the first direction, each end of the connecting member is fixed to each traveller, a pair of pinions, each of which engages with each rack and rolls thereon in the first direction, the pinions coaxially connected by a shaft, and a first motor for driving at least one of the travellers in the first direction, wherein the first motor is not mounted on the travellers and the connecting member. With this structure, the movable parts of the drive system are lightened so that high speed operation is made possible.
Claims17
A drive system, comprising:
- a base;
- a pair of racks provided in a first direction on the base;
- a connecting member having two ends, the connecting member being provided in a second direction generally perpendicular to the first direction, each end of said connecting member being fixed to each said traveller;
- a pair of pinions, each of which engages with said rack and rolls thereon in the first detection, and pinions being coaxially connected by a shaft;
- and
- first driving means for driving at least one of said travellers in the first direction, said first driving means being mounted on the base separate from said travellers and said connecting member.
A drive system, comprising:
- a base;
- a pair of first racks provided in a first direction on the base;
- a pair of second racks provided in a second direction generally perpendicular to the first direction on the base;
- a pair of first travellers, each of which is movable in the first direction alongside each said first rack;
- a pair of second travellers, each of which is movable in the second direction alongside each said second rack;
- a first connecting member having two ends, the first connecting member being provided in the second direction, each end of said first connecting member being fixed to each said second traveller;
- a second connecting member having two ends, the second connecting member being provided in the first direction, each end of said second connecting member being fixed to each said second first traveller;
- a pair of first pinions, each of which engages with said each first rack and rolls thereon in the first direction, said first pinions being coaxially connected by a first shaft;
- a pair of second pinions, each of which engages with each said second rack and rolls thereon in the second direction, said second pinions being coaxially connected by a second shaft;
- first driving means for driving at least one of said first travellers in the first direction, said first driving means being mounted on the base separate from said first travellers and said first connecting member;
- second driving means for driving at least one of said second travellers in the second direction, said second driving means being mounted on the base separate from said second travellers and said second connecting member;
- and
- a moving body movably provided on said first connecting member and said second connecting member, whereby said moving body is movable in the first direction and the second direction.
Dependencies are inferred from the claim text.