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Patent Searching and Data


Title:
LEVELING FOUR-LEGGED STEP LADDER
Document Type and Number:
WIPO Patent Application WO/2018/163925
Kind Code:
A1
Abstract:
[Problem] To provide a leveling four-legged step ladder in which the lower end of each of four legs is made to be in reliable contact with even a non-flat installation surface, and which can ensure stability and safety using a structure for preventing a worker from toppling or falling off. [Solution] This leveling four-legged step ladder is constituted by providing two sets of ladder parts 21, 22 that are formed by respectively connecting two rod-shaped legs (21a, 21a), (22a, 22a) with rungs 21b, 22b, and connecting the upper ends of the ladder parts 21, 22 to a platform 3. The platform 3 is provided with a first platform 31 connected to the one ladder part 21, and a second platform 32 connected to the other ladder part 22. The first platform 31 and the second platform 32 are pivotably connected via a predetermined pivot shaft so to be at positions skewed relative to each other.

Inventors:
KOBAYASHI Kimio (7-40, Shibafuji 2-chome Kawaguchi-city Saitama, 54, 〒3330854, JP)
Application Number:
JP2018/007394
Publication Date:
September 13, 2018
Filing Date:
February 28, 2018
Export Citation:
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Assignee:
KOBAYASHI Kimio (7-40, Shibafuji 2-chome Kawaguchi-city Saitama, 54, 〒3330854, JP)
International Classes:
E06C1/18
Foreign References:
JP3172345U
JPH0659600U1994-08-19
JPS5693212U1981-07-24
JP2004211364A2004-07-29
JPH11324544A1999-11-26
JPS52146226U1977-11-05
JPS4953931U1974-05-13
Attorney, Agent or Firm:
SHIMOSAKA Sumiko et al. (Yusei Fukushi Kotohira Bldg. 8th Flr, 14-1 Toranomon 1-chom, Minato-ku Tokyo 01, 〒1050001, JP)
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