Portable support structure useful as ladder or stepladder
OwnerBernard Clavelinventor
Life of this patent
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Abstract
The invention concerns a support structure characterized in that it comprises at least: a shaft (1) whereof the two ends are designed to be urged to rest on two fixed elements, one of which may be the ground and the other, a fixed object located above the ground; two series of steps (M1, M′1-2, M′2-M3, M′3) fixed on the shaft, on either side thereof respectively; and a ramp (7), integral with the shaft (1) extending vertically with respect thereto, at a distance from the steps (M1, M′1-M2, M′2-M3, M′3) less than the average length of a leg, such that a user can move on the steps (M1, M′1-M2, M′2-M3, M′3) by striding over the ramp (7). Said structure enables the user to stand on the steps with greater stability while keeping his hands free.
Claims11
Portable structure able to be used as a ladder or stepladder to enable a person to go up or down, said structure comprising one shaft having a lower end portion which constitutes a first support means and an upper second portion hinged on two rigid legs having lower end portions which constitute second and third support means, said shaft and said rigid legs forming a tripod structure in a deployed state, said shaft being provided with two sets of steps respectively secured on two lateral sides of said shaft and with a ramp user is able to move on the steps by straddling the ramp and can keep said ramps tight between his legs so as to remain on the structure without having to use his cards.
Portable structure able to be used as a ladder or stepladder to enable a person to go up or down, said structure comprising one shaft having a lower end portion which constitutes a first support means and an upper second end portion hinged on two rigid legs having lower end portions which constitute second and third support means, said shaft and said rigid legs forming a tripod structure in a deployed state, said shaft being provided with two sets of steps respectively secured on two lateral sides of said shaft and with a ramp and is provided with a ramp section having a looked extremity which is telescopically engage in said ramps.
Dependencies are inferred from the claim text.