Mast systems for autonomous mobile robots

Patent metadata

Field	Value
Publication number	US-10458593-B2
Application number	US-201816106628-A
Country	US
Kind code	B2
Filing date	Aug 21, 2018
Priority date	Jun 12, 2017
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A protractible and retractable mast system for an autonomous mobile robot includes an elongate flexible member including a first lateral end and a second lateral end, and a fastener having a first portion extending along a length of the first lateral end and a second portion extending along a length of the second lateral end. The flexible member is configured to be at least partially coiled within a body of the robot, and a portion of the flexible member is vertically movable away from the body when the flexible member is being uncoiled. The fastener is configured to connect the first lateral end to the second lateral end when the flexible member is being uncoiled, and disconnect the first lateral end from the second lateral end when the flexible member is being coiled.

First claim

What is claimed is:

1. An autonomous mobile robot comprising:
a body;
a drive configured to maneuver the body across a floor surface;
an image capture device;
an interface cable connecting the image capture device to a controller of the robot, the interface cable being configured to be spooled within the body; and
an elongate flexible member including a polymer portion and a textile portion, the elongate flexible member including a first portion having a first curvature and being coupled to the image capture device, a second portion having a second curvature less than the first curvature and being coiled within the body of the robot, and a third portion having a curvature that varies between the first curvature and the second curvature, the third portion connecting the first portion to the second portion.

2. The autonomous mobile robot of claim 1 , wherein the elongate flexible member is configured to be at least partially coiled within the robot about a spool, the second portion of the elongate flexible member being attached to the spool, the third portion of the elongate flexible member being distal to the second portion, and the first portion of the elongate flexible member being distal to the first portion.

3. The autonomous mobile robot of claim 1 , wherein the elongate flexible member is vertically protractible from the body of the robot to move the first portion with the image capture device vertically away from the body of the robot to a height of at least 0.5 meters above the floor surface.

4. The autonomous mobile robot of claim 1 , wherein the polymer portion is attached to the textile portion.

5. The autonomous mobile robot of claim 1 , comprising a zipper attached to the textile portion of the elongate flexible member, the zipper being in a closed position in the first portion and an open position in the second and third portions.

6. The autonomous mobile robot of claim 5 , comprising a ramp attached to the body of the robot and configured to support the third portion of the elongate flexible member to reduce buckling.

7. The autonomous mobile robot of claim 5 , wherein a first portion of the zipper is positioned along a first lateral edge of the elongate flexible member, and a second portion of the zipper is positioned along a second lateral edge of the elongate flexible member.

8. The autonomous mobile robot of claim 7 , further comprising a fastening and unfastening device positioned below a top surface of the body, the fastening and unfastening device being configured to connect the first portion of the zipper and the second portion of the zipper such that the flexible member forms a conduit around a portion of the interface cable.

9. The autonomous mobile robot of claim 1 , wherein a thickness of the polymer portion of the elongate flexible member is between 0.1 and 1 millimeter, and a thickness of the textile portion is between 0.1 and 1 millimeter.

10. The autonomous mobile robot of claim 9 , wherein the thickness of the polymer portion is between 30% and 70% of an overall thickness of the elongate flexible member.

11. The autonomous mobile robot of claim 1 , further comprising a conduit within at least the first portion of the elongate flexible member, the conduit having a width between 0.5 centimeters and 2.5 centimeters.

12. The autonomous mobile robot of claim 1 , wherein a width of the first portion of the elongate flexible member is between 60 millimeters and 120 millimeters.

13. The autonomous mobile robot of claim 1 , wherein the second portion is substantially flat.

14. A protractible and retractable mast system for an autonomous mobile robot, the mast system comprising:
an elongate flexible member including a polymer portion and a textile portion, the elongate flexible member including a first portion having a first curvature and being configured to be coupled to an image capture device of the robot, a second portion having a second curvature less than the first curvature and being configured to be coiled within the robot, and a third portion having a curvature that varies between the first curvature and the second curvature, the third portion connecting the first portion to the second portion; and
a drive roller rotatable in a first direction to move the first portion of the elongate flexible member away from the robot, and rotatable in a second direction to move the first portion of the elongate flexible member toward the robot.

15. The mast system of claim 14 , wherein the elongate flexible member is configured to be at least partially coiled within the robot about a spool, the second portion of the elongate flexible member being attached to the spool, the third portion of the elongate flexible member being distal to the second portion, and the first portion of the elongate flexible member being distal to the first portion.

16. The mast system of claim 14 , wherein the polymer portion is attached to the textile portion.

17. The mast system of claim 14 , comprising a zipper attached to the textile portion of the elongate flexible member, the zipper being in a closed position in the first portion and an open position in the second and third portions.

18. The mast system of claim 17 , comprising a ramp configured to support the third portion of the elongate flexible member to reduce buckling.

19. The mast system of claim 17 , wherein a first portion of the zipper is positioned along a first lateral edge of the elongate flexible member, and a second portion of the zipper is positioned along a second lateral edge of the elongate flexible member.

20. The mast system of claim 19 , further comprising a fastening and unfastening device configured to connect the first portion of the zipper and the second portion of the zipper such that the flexible member forms a conduit for an interface cable of the robot.

21. The mast system of claim 14 , wherein a thickness of the polymer portion of the elongate flexible member is between 0.1 and 1 millimeter, and a thickness of the textile portion is between 0.1 and 1 millimeter.

22. The mast system of claim 21 , wherein the thickness of the polymer portion is between 30% and 70% of an overall thickness of the elongate flexible member.

23. The mast system of claim 14 , further comprising a conduit within at least the first portion of the elongate flexible member, the conduit having a width between 0.5 centimeters and 2.5 centimeters.

24. The mast system of claim 14 , wherein a width of the first portion of the elongate flexible member is between 60 millimeters and 120 millimeters.

25. The mast system of claim 14 , wherein the second portion is substantially flat.

Assignees

• Irobot Corp

Inventors

• Chow Patrick
• Romanov Nikolai

Classifications

• B25J5/007

  mounted on wheels · CPC title

• A47L2201/04

  Automatic control of the travelling movement; Automatic obstacle detection · CPC title

• F16M11/40 Primary

  by means of coilable or bendable legs {or spiral shaped legs} · CPC title

• A47L9/2852

  Elements for displacement of the vacuum cleaner or the accessories therefor, e.g. wheels, casters or nozzles · CPC title

• B65H2701/371

  Curved tapes, e.g. "Spreizband" · CPC title