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US4887016A Expired / Lapsed US ⏱️ 0.0 years remaining

Portable robot with automatic set-up

Assignee: Viking Systems International Inc
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Filing: 1987-09-21
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Granted: 1989-12-12
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Expires: 2007-09-21
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Abstract

Abstract A system for allowing a robot to be moved and set up quickly to perform a variety of work tasks at different work locations is disclosed. Once roughly positioned at a work location, the robot uses position sensors to establish in its computer memory a set of coordinate axes which match precisely the intersections of the three planes of a reference structure which is in a fixed position relative to the work location. All robot movements required to carry out the work task are made with respect to this set of coordinate axes so that the work task program remains the same independent of the exact position of the robot. A sensor holder and sensor storage bracket which uses the straight line horizontal and vertical movement capability of the robot to permit a programmed pickup and storage of the sensor is disclosed.

Inventors

  • 👤 Franklin S. Malick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 17:45
CPC Classifications
B; B25; B25J; B25J9/00; B25J9/16; B25J9/1679; B25J9/1692

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 200 words
A method for defining an intangible robotic memory frame in a robotic memory of a mobile robot to match a tangible reference structure at each of separate workstations for the robot or each time the robot is newly positioned at a workstation, said method including the steps of; newly positioning the mobile robot at one of said workstations; using a position sensor on a robotic arm of said mobile robot to establish a first intangible robotic memory frame matching a first plane of said tangible reference structure; using said position sensor and the first intangible robotic memory frame to establish a second intangible robotic memory frame which matches the first tangible plane and a second tangible plane perpendicular to said first plane of said tangible reference structure, said second intangible robotic memory frame includes said first intangible robotic memory plane and; using said position sensor and said second intangible robotic memory frame to establish a third intangible robotic memory frame which matches the first and second tangible planes and a third tangible plane perpendicular to said first plane and said second plane of said tangible reference structure, said third intangible robotic memory frame includes said second intangible robotic memory frame.
Claim 2
Independent Claim 200 words
A method for defining an intangible robotic memory frame in a robotic memory of a mobile robot to match a tangible reference structure at each of separate workstations for the robot or each time the robot is newly positioned at a workstation, said method including the steps of; newly positioning the mobile robot at one of said workstations; using a position sensor on a robotic arm of said mobile robot to establish a first intangible robotic memory frame matching a first plane of said tangible reference structure; using said position sensor and the first intangible robotic memory frame to establish a second intangible robotic memory frame which matches the first tangible plane and a second tangible plane perpendicular to said first plane of said tangible reference structure, said second intangible robotic memory frame includes said first intangible robotic memory plane and; using said position sensor and said second intangible robotic memory frame to establish a third intangible robotic memory frame which matches the first and second tangible planes and a third tangible plane perpendicular to said first plane and said second plane of said tangible reference structure, said third intangible robotic memory frame includes said second intangible robotic memory frame.
Claim 3
Independent Claim 162 words
A method for defining an intangible robotic memory frame in a robotic memory of a mobile robot to match a tangible reference structure at each of separate workstations for the robot or each time the robot is newly positioned at a workstation, said method including the steps of; newly positioning the mobile robot at one of said workstations; using a position sensor held by a robotic arm of said mobile robot to establish a first intangible robotic memory frame in the robotic memory which matches an XY base plane of said tangible structure; using said position sensor held by a robotic arm of said mobile robot to establish a second intangible robotic member frame which matches both the XY and XZ planes of the said tangible reference structure and; using a position sensor held by the robotic arm of said mobile robot to establish a third intangible robotic memory frame which matches the XY, XZ, YZ planes of said tangible reference structure.
Claim 4
Independent Claim 162 words
A method for defining an intangible robotic memory frame in a robotic memory of a mobile robot to match a tangible reference structure at each of separate workstations for the robot or each time the robot is newly positioned at a workstation, said method including the steps of; newly positioning the mobile robot at one of said workstations; using a position sensor held by a robotic arm of said mobile robot to establish a first intangible robotic memory frame in the robotic memory which matches an XY base plane of said tangible structure; using said position sensor held by a robotic arm of said mobile robot to establish a second intangible robotic member frame which matches both the XY and XZ planes of the said tangible reference structure and; using a position sensor held by the robotic arm of said mobile robot to establish a third intangible robotic memory frame which matches the XY, XZ, YZ planes of said tangible reference structure.
Claim 5
Dependent Claim 42 words
The method according to claim 2 wherein said position sensor is a momentary type switch which operates to stop the movement of the robotic arm when the switch is actuated by contact with one of planar surfaces of said tangible reference structure.
Claim 6
Dependent Claim 55 words
The method of claim 2 wherein said position sensor includes three momentary type switches, having their operating axes mutually perpendicular to each other and connected in series electrically so that any one of the switches will stop the movement of the robot arm when the switch is actuated by contact with said tangible reference structure.
Claim 7
Dependent Claim 137 words
Apparatus to define a desired intangible robotic memory reference frame in terms of absolute points in a robotic memory of a mobile robot, said apparatus including the combination of: means for moving said mobile robot at one of separate workstations or newly positioning the robot at a workstation; a tangible reference structure having a plurality of reference planes for defining absolute reference points of a desired intangible robotic memory frame in said robotic memory; means for producing a plurality of signals to generate a first intangible robotic memory frame matching a first plane of said tangible reference structure; and a second intangible robotic memory frame which includes said first intangible robotic memory frame and a second intangible robotic memory frame, and a third intangible robotic memory frame which includes said first and second intangible robotic memory frames.
Claim 8
Dependent Claim 137 words
Apparatus to define a desired intangible robotic memory reference frame in terms of absolute points in a robotic memory of a mobile robot, said apparatus including the combination of: means for moving said mobile robot at one of separate workstations or newly positioning the robot at a workstation; a tangible reference structure having a plurality of reference planes for defining absolute reference points of a desired intangible robotic memory frame in said robotic memory; means for producing a plurality of signals to generate a first intangible robotic memory frame matching a first plane of said tangible reference structure; and a second intangible robotic memory frame which includes said first intangible robotic memory frame and a second intangible robotic memory frame, and a third intangible robotic memory frame which includes said first and second intangible robotic memory frames.
Claim 9
Dependent Claim 30 words
The apparatus according to claim 5 wherein said tangible reference structure for defining a plurality of reference planes includes three mutually perpendicular planar surfaces supported within the robot work envelope.
Claim 10
Dependent Claim 27 words
The apparatus according to claim 5 wherein said tangible reference structure for producing a plurality of signals includes at least one which having a moveable activator button.
Claim 11
Dependent Claim 49 words
The apparatus according to claim 5 wherein said tangible reference for producing a plurality of signals includes three switches each having a moveable actuation button, and a support for said switches to direct each switch toward one of the three mutually perpendicular reference planes of said tangible reference structure.
Claim 12
Dependent Claim 32 words
The apparatus according to claim 5 wherein said tangible reference structure for defining a plurality of reference planes includes three mutually perpendicular planar surfaces supported within a work envelope of said robot.
Claim 13
Dependent Claim 15 words
The apparatus according to claim 5 wherein said means for allowing includes a wheeled vehicle.
Claim 14
Dependent Claim 12 words
The apparatus according to claim 10 wherein said wheeled vehicle is motorized.
Claim 15
Dependent Claim 33 words
The apparatus according to claim 5 wherein said means includes a pallet upon which said robot is fixedly mounted and a fork lift means for transporting said pallet and the robot mounted thereupon.
Claim 16
Dependent Claim 66 words
The apparatus according to claim 5 wherein said tangible reference structure is fixedly positioned relative to a work location, and wherein said means for producing a plurality of signals includes a position sensor held by the robot, and an orientation program contained in the robotic memory to allow the robot to orient the memory with respect to the reference structure and therefore to the work location.
Claim 17
Dependent Claim 36 words
The apparatus according to claim 13 wherein said tangible reference structure includes a first planar surface, a second planar surface, and a third planar surface, each of said planar surfaces being mutually perpendicular to one another.
Claim 18
Dependent Claim 42 words
The apparatus according to claim 5 further including storage means including a sensor tool and a storage bracket to support said tool for straight line mutually perpendicular movement of the tool to allow the programmed pickup and storage of tools and sensors.
Claim 19
Dependent Claim 61 words
The apparatus of claim 5 wherein the tangible reference structure is located at a fixed location relative to the work location and wherein said means for producing a plurality of signals includes running an orientation program contained in the robotic memory to allow the robot to orient its memory with respect to the reference structure and therefore to the work location.

References Cited (Backward Citations)

US4287459A Cited
US4547844A Cited
US4571694A Cited
US4561050A Cited
US4481591A Cited
US4536690A Cited
US4562391A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-12-11 1993-06-12 1993-12-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-12-11 1997-06-12 1997-12-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-12-11 2001-06-12 2001-12-12 $7700.00 Window Closed / Lapsed

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