Articulated robot

Details Articulated robot Articulated robot

1999-10-18

2001-07-31

Herrmann, Allan D. (Department: 3682)

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

C074S490030, C074S490050, C901S015000, C901S023000, C901S049000

Reexamination Certificate

active

06267022

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an articulated robot working in a clean room or the like.
BACKGROUND OF THE INVENTION
As an industrial robot working in a clean room, hitherto, an orthogonal robot has been used. By contrast, an articulated robot has not been used in a clean room.
FIG. 3
shows a sectional view of a conventional articulated robot. The conventional articulated robot shown in
FIG. 3
has multiple opening parts
51
to
55
. If, therefore, the conventional articulated robot is used in clean room work, when operating the manipulator, it is necessary to prevent the dust particles that deposit in the arms from flowing outside from the opening parts or gaps in the arms. Moreover, due to the slide action between parts of one axis and the other axis of the articulated robot, volatile oil mist and fine particles may be released from the lubricant in the bearing and speed reducer located in the vicinity. Hence, countermeasures to collect or prevent the escape of these elements are also necessary.
In the conventional articulated robot, for use in work in a clean room, it is necessary to build up an enclosed structure by adding parts so as not to release dust outside. The enclosed structure requires significant design changes. In addition, the entire articulated robot is increased in size around the arms due to parts added by design changes, and also substantially increased in weight and cost.
SUMMARY OF THE INVENTION
The invention is intended to solve such problems, and it is hence an object to present an articulated robot capable of preventing release of dust in a simple constitution.
To achieve the object, the articulated robot of the invention comprises plural arms, a drive source for driving the arms, a closing cover accommodating the drive source inside to isolate it from the outside, communicating passages having a space for communicating with the arms and closing cover, and at least two opening parts opened to the outside.
A first aspect of the invention, relating to the articulated robot having the above constitution, is an articulated robot having a suction mechanism for sucking air from inside of the robot provided at one of the opening parts.
A second aspect of the invention is an articulated robot having a blowing mechanism for blowing air into the robot provided at one of the opening parts. Thus, the robot includes one type of air flow generator for creating an air flow through the robot, and the air flow generator can be either a suction mechanism or a blowing mechanism.


REFERENCES:
patent: 4668146 (1987-05-01), Ageta
patent: 4697978 (1987-10-01), Tada et al.
patent: 4732526 (1988-03-01), Nakashima et al.
patent: 4802815 (1989-02-01), Funabashi et al.
patent: 4972731 (1990-11-01), Akutagawa et al.
patent: 4984745 (1991-01-01), Akeel et al.
patent: 5440916 (1995-08-01), Stone et al.
patent: 5785727 (1998-07-01), Mine et al.
patent: 6039068 (2000-03-01), Tessier et al.
patent: 63-65973 (1988-03-01), None
patent: 5-8194 (1993-01-01), None

Affiliated with

Also associated with

Rating

Articulated robot does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Articulated robot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Articulated robot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2567590