Title:
道路用照明標識
Document Type and Number:
Japanese Patent JP3132415
Kind Code:
U
Abstract:
A magnetically-levitated telescopic land indicator comprises a sleeve having an end surface; the end surface having an opening; a seat combined to the sleeve so as to form an inner space for receiving other elements; a magnetic levitated telescopic cylinder installed to the downward concave portion of the seat; the magnetically-levitated telescopic cylinder being installed in an inner space between the seat and the sleeve; at least two permanent magnets being installed within the magnetically-levitated telescopic cylinder; the permanent magnets having same magnetic polarities so that the permanent magnets being repulsive to one another; and an actuator being made of strengthened transparent material; the actuator having a dome shape protrusion at an upper end; an edge portion being arranged around an edge of the protrusion, and the protrusion protruding from the opening in the end surface of the sleeve.
Inventors:
Jiang Wealth
Application Number:
JP2007002089U
Publication Date:
June 07, 2007
Filing Date:
March 28, 2007
Export Citation:
Assignee:
Jiang Wealth
International Classes:
E01F9/50; E01F9/506; E01F9/524; F21S2/00; F21V17/00; F21Y101/00
Attorney, Agent or Firm:
Shinichi Tamaki