Title:
STEPLADDER
Document Type and Number:
WIPO Patent Application WO/2014/132733
Kind Code:
A1
Abstract:
A stepladder provided with a coupling frame (Tcp) in the shape of an equilateral triangle, a front brace (PL) coupled with the coupling frame and provided with a ladder, a rear right brace (Pudr) coupled with the coupling frame via a rear right fixture (Psr), a rear left brace (Pudl) coupled with the coupling frame via a rear left fixture (Psl), and opening stoppers (SOc) for stopping the front brace (PL), the rear right brace (Pudr), and the rear left brace (Pudl) from opening. The front brace (PL) is rotatably attached to a front-side shaft of the coupling frame (Tcp), the rear right fixture (Psr) is rotatably attached to a right-side shaft, and the rear left fixture (Psl) is rotatably attached to a left-side shaft. The rear left brace and the rear right brace are detachably mounted to the rear left fixture and the rear right fixture, respectively. The braces (PL, Pudr, Pudl) of the stepladder are coupled by the opening stoppers (SOc), whereby the three braces are restricted from being displaced forward, to the right rear, and to the left rear.
Inventors:
AOI TOKUO (JP)
AOI TAZUKO (JP)
AOI TAZUKO (JP)
Application Number:
PCT/JP2014/051998
Publication Date:
September 04, 2014
Filing Date:
January 29, 2014
Export Citation:
Assignee:
AOI TOKUO (JP)
AOI TAZUKO (JP)
AOI TAZUKO (JP)
International Classes:
E06C1/38; E06C1/00; E06C1/28; E06C1/32; E06C1/383
Foreign References:
| US4524849A | 1985-06-25 | |||
| JP2005282319A | 2005-10-13 | |||
| JPH09112165A | 1997-04-28 | |||
| JPS6252700U | 1987-04-01 | |||
| EP1079062A2 | 2001-02-28 | |||
| US6386320B1 | 2002-05-14 |
Attorney, Agent or Firm:
ONDA, Makoto et al. (JP)
Makoto Onda (JP)
Makoto Onda (JP)
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