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US 8,910,538 B2Granted
Robot
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsYusuke Hayashi, Manabu Okahisa, Keisuke Yonehara
Life of this patent
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Abstract
A robot according to an embodiment includes a base, a first structure, a second structure, and a third structure. The first structure is connected to the base to be rotatable about a first axis. The second structure is connected to the first structure to be rotatable about a second axis orthogonal to the first axis. The third structure is connected to the second structure to be rotatable about a third axis parallel to the second axis. The first structure and the third structure are formed by using cast materials having a same shape.
Claims19
A robot comprising:
- a base;
- a first structure connected to the base to be rotatable about a first axis;
- a second structure connected to the first structure to be rotatable about a second axis orthogonal to the first axis;
- and
- a third structure connected to the second structure to be rotatable about a third axis parallel to the second axis,
- each of the first structure and the third structure comprising:
- a one-side wall portion;
- and
- an other-side wall portion having a thickness smaller than the one-side wall portion,
- the first and third structures being hollow structures,
- the one-side and other-side wall portions of the first structure respectively having identical structures as the one-side and other-side wall portions of the third structure,
- the second structure comprising:
- a plate-like main structural part;
- and
- a plate-like auxiliary structural part that is located opposite to the main structural part at a predetermined interval and has a smaller plate thickness than the main structural part, and
- the one-side wall portions of the first and third structures being rotatably connected to the main structural part of the second structure and the other-side wall portions of the first and third structures being rotatably connected to the auxiliary structural part of the second structure.
13 more elements
A robot comprising:
- a base;
- a first structure connected to the base to be rotatable about a first axis;
- a second structure connected to the first structure to be rotatable about a second axis orthogonal to the first axis;
- and
- a third structure connected to the second structure to be rotatable about a third axis parallel to the second axis,
- each of the first structure and the third structure comprising:
- a one-side wall portion;
- and
- an other-side wall portion having a thickness smaller than the one-side wall portion, the first and third structures being hollow structures,
- the first and third structures having identical structures,
- the second structure comprising:
- a plate-like main structural part;
- and
- a plate-like auxiliary structural part that is located opposite to the main structural part at a predetermined interval and has a smaller plate thickness than the main structural part, and
- the one-side wall portions of the first and third structures being rotatably connected to the main structural part of the second structure and the other-side wall portions of the first and third structures being rotatably connected to the auxiliary structural part of the second structure.
12 more elements
Dependencies are inferred from the claim text.