Food handling gripper

Patent metadata

Field	Value
Publication number	US-10112310-B2
Application number	US-201615194283-A
Country	US
Kind code	B2
Filing date	Jun 27, 2016
Priority date	Jun 26, 2015
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

Exemplary embodiments relate to improvements in robotic systems to reduce biological or chemical harborage points on the systems. For example, in exemplary embodiments, robotic actuators, hubs, or entire robotic systems may be configured to allow crevices along joints or near fasteners to be reduced or eliminated, hard corners to be replaced with rounded edges, certain components or harborage points to be eliminated, shapes to be reconfigured to be smoother or flat, and/or or surfaces to be reconfigurable for simpler cleaning.

First claim

The invention claimed is:

1. A robotic system comprising:
a soft actuator comprising an elastomeric bladder configured to receive an inflation fluid;
a securing mechanism comprising a body and one or more extensions, the one or more extensions configured to be received in one or more corresponding recesses of the elastomeric bladder and to be gripped within the recesses upon application of a tightening force to seal the inflation fluid in the soft actuator; further comprising a base having one or more rounded fingers from gripping an inflation fluid supply line.

2. The robotic system of claim 1 , wherein the securing mechanism further includes an inflation fluid supply passage for supplying inflation fluid to the soft actuator.

3. The robotic system of claim 1 , wherein the one or more extensions comprise fastening passages for receiving one or more fasteners.

4. The robotic system of claim 1 , wherein the inflation fluid supply line comprises one or more filleted slots for interlocking with respective rounded fingers of the base.

5. The robotic system of claim 1 , further comprising a hub for holding a plurality of soft actuators, the hub held in place using an internal fastening mechanism and presenting a smooth outer surface.

6. The robotic system of claim 5 , wherein the internal fastening mechanism attaches to the hub through an inflation fluid supply line.

7. The robotic system of claim 1 , wherein the soft actuator further comprises an overmolded soft gripping pad covering at least a proximal end of a gripping surface of the soft actuator.

8. The robotic system of claim 1 , wherein the soft actuator comprises a molded hook disposed at a distal end of the soft actuator.

9. The robotic system of claim 1 , wherein the soft actuator comprises a plurality of accordion extensions, and further comprising: an extensible accordion extension cover configured to encase the accordion extensions and flex with the soft actuator, the extensible accordion cover presenting a smooth outer surface.

10. The robotic system of claim 1 , wherein the soft actuator comprises a plurality of accordion extensions, the soft actuator including: a full accordion section in which the accordion extensions extend around a diameter of the soft actuator; and a partial accordion section in which the accordion extensions extend only part way around the diameter of the soft actuator.

11. The robotic system of claim 10 , wherein the full accordion section includes accordion extensions at a higher frequency than the partial accordion section.

12. The robotic system of claim 1 , further comprising a robotic arm to which the soft actuator is affixed, and a disposable wrapping sized and shaped to surround the robotic arm and the soft actuator.

Assignees

• Soft Robotics Inc

Inventors

• Lessing Joshua Aaron
• Knopf Ryan Richard
• Harburg Daniel Vincent
• Alcedo Kevin
• Sellers Grant Thomas
• Chiappetta Mark

Classifications

• B25J9/142

  comprising inflatable bodies · CPC title

• B25J15/10

  with three or more finger members {(B25J15/0009 takes precedence)} · CPC title

• Y10S901/39

  Jaw structure · CPC title

• B25J15/0475

  Exchangeable fingers · CPC title

• B25J15/0023

  Gripper surfaces directly activated by a fluid (flexible fingers B25J15/12) · CPC title