Claims
- 1. A wrist mechanism for an industrial robot, comprising:
- a first pipe extended from a first universal pipe coupling in relation to a front .alpha.-axis among three axes of motion of a wrist, on a first center axis (A--A) of a turning motion through a center of an .alpha.-axis reduction gear, said first universal pipe coupling located on said first center axis (A--A);
- a second universal pipe coupling provided in relation to a .beta.-axis on a second center axis (B--B) of motion, said second universal pipe coupling located on said second center axis;
- a second pipe having one end connected to said first universal pipe coupling and the other end connected to said second universal pipe coupling;
- a hose extended along a support arm in relative to a third .gamma.-axis driven by a first and a second drive shaft means, said hose extending from a rear end to a front end of said support arm, and connected through said second universal pipe coupling to said second pipe; and
- a connecting hose connected to an extremity of said first pipe;
- wherein said first pipe, said second pipe, and said second center axis are disposed near the front end of said support arm.
- 2. A wrist mechanism for an industrial robot according to claim 1, wherein the support arm is turned about said .gamma.-axis on its rear end, and the connecting hose is connected through a third universal pipe coupling to said first pipe.
- 3. A wrist mechanism for an industrial robot according to claim 1, further comprising:
- a drive shaft rotatably mounted within said support arm.
- 4. A wrist mechanism for an industrial robot according to claim 1, further comprising:
- pipe moving means for remotely moving said first pipe in a three-axis motion.
- 5. A wrist mechanism for an industrial robot according to claim 4, wherein said pipe moving means comprises:
- first and second bevel gears, rotatably driven by said and second drive shaft means.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-266222 |
Oct 1988 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/476,491, filed Jun. 7, 1990, now abandoned.
US Referenced Citations (16)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0136289 |
Sep 1983 |
JPX |
61-297093 |
Dec 1986 |
JPX |
WO9008632 |
Aug 1990 |
WOX |
0512048 |
Jul 1976 |
SUX |
Continuations (1)
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Number |
Date |
Country |
Parent |
476491 |
Jun 1990 |
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