Transfer robot
OwnerYasuhito Itagakiinventor
Life of this patent
Estimating the term…
Abstract
A transfer robot has a base, first and second intermediate arms, and a distal arm. First and second pulleys are fixed to driving and driven shafts of the first intermediate arm, respectively, and a flat belt is looped around the first and second pulleys. Each of the pulleys has an inner boss and an outer collar, and an eccentric ring is attached to the boss. In each of the pulleys, the flat belt surrounds a periphery of the collar, and is introduced into the collar through a side opening of the collar, and further surrounds a periphery of the eccentric ring. The tension of the flat belt is adjustable by adjusting the position of the eccentric ring relative to the boss in an angular direction.
Claims10
A transfer robot comprising:
- a first arm connected to a driving shaft which receives a driving force from a driving source;
- a second arm connected to said first arm by a driving shaft which receives a driving force from said driving shaft;
- a supporting portion connected to said second arm, for supporting a target object;
- first and second pulleys attached to said driving and driven shafts, respectively, said first pulley having an inner boss fixed to said driving shaft, and an outer collar surrounding said boss with a distance therebetween and having a side opening;
- an eccentric ring fixed to said boss within said collar by adjustable means, such that said eccentric ring is adjustable over its position relative to said boss in an angular direction;
- and
- a flat belt looped around said first and second pulleys, such that said flat belt surrounds a periphery of said collar, and is introduced into said collar through said side opening, and further surrounds a periphery of said eccentric ring within said collar,
- wherein said flat belt is adjustable over its tension by adjusting said eccentric ring over its position relative to said boss in an angular direction.
Dependencies are inferred from the claim text.