Title:
組はしご、はしご構成要素、及びその製造方法
Document Type and Number:
Japanese Patent JP2006505726
Kind Code:
A
Abstract:
Ladder configurations and components are provided including an outer rail assembly which is longitudinally adjustable relative to an inner rail assembly. The outer rail assembly may include a pair of spaced apart outer rails each fixedly coupled to an associated sleeve or sliding mechanism. Each sleeve is in turn slidably coupled to an inner rail of the inner rail assembly. The outer rails may be positioned and oriented at an acute angle relative to the inner rails so as to provide an increased base distance between the two outer rails. Support structures are also disclosed which are coupled at multiple locations along a rail member and at least one location of a rung. Additionally, ladder hinges are disclosed including hinge components configured to effectively transmit loads from associated rails. In one embodiment the hinge may include a pinch prevention mechanism.
Inventors:
Mosel, Newell Ryan
Bowers, Jack W
Francis, david
Bowers, Jack W
Francis, david
Application Number:
JP2004552117A
Publication Date:
February 16, 2006
Filing Date:
November 11, 2003
Export Citation:
Assignee:
Wing Enterprises
International Classes:
E06C7/06; E06C1/22; E06C1/30; E06C1/32; E06C7/10; E06C7/42
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Toru Miyamae
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Toru Miyamae