Material or article handling – Vertically swinging load support
Patent
1987-02-24
1988-09-27
Spar, Robert J.
Material or article handling
Vertically swinging load support
74625, 901 4, 901 23, B66C 2300, B66F 900
Patent
active
047738138
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an industrial robot. More particularly, the present invention relates to a manual operation mechanism of a robot, which is disposed to manually withdraw an operating portion such as a robot arm when an industrial robot is stopped by a malfunction or the like and control of the robot becomes impossible.
BACKGROUND ART
In an automation line having an industrial robot introduced therein, if the robot is stopped by a malfunction or the like and control becomes impossible, it is necessary to repair the robot urgently and start the operation again. However, where it is difficult to accomplish restoration in a short time, it is necessary to withdraw the stopped robot from the line and continue the operation of the line without using the robot.
Where stopping of the robot is due to an electrical fault in a control device, a driving circuit of a driving motor or the like, since a rotary operation portion such as an arm of the robot is not electrically moved, in order to withdraw the robot, it is necessary to move the rotary operating portion mechanically by hand. In general, however, since a brake device is built-into a motor for driving the rotary operating portion of the robot to brake an output shaft of the motor when the motor is stopped, it is very difficult to manually move the rotary operating porting of the stopped robot.
DISCLOSURE OF THE INVENTION
In accordance with the present invention, there is provided an industrial robot comprising a robot body having an operating portion, a driving motor for driving the operating portion and a handle member, wherein the driving motor comprises a casing secured to an outer wall of the robot body by bolts, an output shaft connected to the operating portion and an inner brake device for securing the output shaft to the casing when the driving motor is stopped, and the handle member is dismountably attachable to the casing of the driving motor so that after the bolts have been taken out, the casing of the driving motor can be manually rotated by the handle member.
In the industrial robot of the present invention, where the robot is stopped by a malfunction or the like, the bolts securing the casing of the driving motor are taken out, the handle is attached to the casing of the driving motor and the output shaft of the motor can be rotated by turning the casing of the motor by the handle. Accordingly, the operating portion connected to the output shaft of the motor can be withdraw very simply and promptly.
The above-mentioned and other features and advantages of the present invention will become apparent from the following description of preferred embodiments of the present invention made with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an entire perspective view illustrating an articulated industrial robot according to one preferred embodiment of the present invention.
FIG. 2 is a partial sectional side view illustrating a portion surrounding an upper arm driving motor of the robot shown in FIG. 1.
FIG. 3 is a perspective view illustrating the upper arm driving motor and handle of the robot shown in FIG. 1.
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 illustrates a preferred embodiment in which the present invention is applied to a six-axis articulated industrial robot. The robot body has a base 11 secured to a setting surface, and the base 11 is provided with a turning body 12 as an operating portion rotatable on the direction of arrow .theta. around the axis vertical to the setting surface. The turning body 12 is provided with an upper arm 13 as an operating portion rotatable in the direction of arrow W around the axis orthogonal to the rotation axis of the turning body 12. A forearm 14 is disposed on the top end of the upper arm 13 as an operating portion rotatable in the direction of arrow U around the axis parallel to the rotation axis of the upper arm 13, and a wrist unit 15 is mounted on the top end of the forearm 14. The wrist unit 15 comprises a wrist base 1
REFERENCES:
patent: 3217604 (1965-11-01), Knox
patent: 3372607 (1968-03-01), Lathrop, II et al.
patent: 3648143 (1972-03-01), Harper et al.
patent: 4393965 (1983-07-01), Zouzoulas
patent: 4586868 (1986-05-01), Nakashima et al.
patent: 4626165 (1986-12-01), Nakashima et al.
patent: 4637773 (1987-01-01), Nakashima et al.
Morisawa Kazuei "Dendoki Oyo".
Inagaki Shigemi
Ito Susumu
Nakashima Seiichiro
Toyoda Kenichi
Doyle Jennifer L.
Fanuc Ltd.
Spar Robert J.
LandOfFree
Industrial 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 Industrial robot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Industrial robot will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2395567