Join
today

Boliven PRO is more than just patent search

  • Build and save lists using the powerful Lists feature
  • Analyze and download your search results
  • Share patent search results with your clients

Patents »

US20070289786: Climbing with dry adhesives

Share

Filing Information

Inventor(s) Mark Cutkosky · Sangbae Kim ·
Assignee(s) CUTKOSKY MARK R · KIM SANGBAE ·
Correspondent LUMEN INTELLECTUAL PROPERTY SERVICES, INC. ·
Application Number US11732867
Filing date 04/04/2007
Publication date 12/20/2007
Predicted expiration date 04/04/2027
U.S. Classifications 180/8.6  · 254/133.00R  ·
International Classifications B62D57024  · B66F1900  ·
Kind CodeA1
20 Claims, 11 Drawings


Abstract

A bio-inspired device is provided designed to scale smooth vertical surfaces using anisotropic frictional materials. The device draws its inspiration from geckos and other climbing lizards and employs similar compliance and force control strategies to climb (or hang onto) smooth vertical surfaces including glass, tile and plastic panels. Foremost among the design features embodied in the device are multiple levels of compliance, at length scales ranging from centimeters to micrometers, to allow the device to conform to surfaces and maintain large real areas of contact so that adhesive forces can support it. Structures within the feet ensure even stress distributions over each toe and facilitate engagement and disengagement of the adhesive materials. A force control strategy works in conjunction with the anisotropic adhesive materials to obtain sufficient levels of friction and adhesion for climbing with low attachment and detachment forces.

Independent Claims | See all claims (20)

  1. 1. A device for directional and distributed control of adhesive forces, comprising: (a) a plurality of parallel anisotropic hair features making an acute angle with respect to a reference plane to define a hair direction; and (b) a backing layer with embedded therein a flexible and inextensible fiber, said backing layer affixed to said plurality of parallel anisotropic hair features.
  2. 13. A climbing robot, comprising: (a) a set of limbs, wherein each limb having a set of toes, wherein each of said toes comprises: (i) a plurality of parallel anisotropic hair features making an acute angle with respect to a reference plane to define a hair direction, (ii) a backing layer with embedded therein a flexible and inextensible fiber, said backing layer affixed to said plurality of parallel anisotropic hair features, (iii) a plurality of segments affixed to said backing layer on the side of said backing layer opposite to said plurality of anisotropic hair features, and (iv) a cable through and near the surface of said plurality of segments; and (b) an actuator to control said wires of said toes.

References Cited

The current document has no citations.

Patent Family

The current document is not in a family.