FR2975663A1 - NAUTICAL SECURITY LADDER WITH SIDE DISCONTINUOUS AMOUNTS AND CENTRAL AMOUNT AND LAUNCHING SUPPORT - Google Patents

Abstract

Scale of safety with its special support for use in aquatic environment. Allows several underwater ladders to be positioned underwater. Scale maintained in the air to avoid rapid natural degradation of the elements that compose it if they were permanently maintained in the water. Allows control of its condition and maintenance easily. Scale with launch available from the top (pontoon, dock, boat ...) or from the bottom such as "man overboard". Special ladder for use with or without palm at the feet. Scale support on deformable parallelogram. Parallelogram locking system in closed position. Resilient blade additive system for opening the parallelogram and cushioning in the final phase of opening and provision-use.

Description

wi `or zontal. The vertical columns receiving the scale to be fixed between two levels and on an open space of the other, a three-sided part. Two vertical uprights and two water pipes of one of four sides.

INTRODUCTION Ladder with discontinuous lateral uprights and ladder with discontinuous lateral uprights plus central upright Application for its design in furniture and furnishing. Application on its special support as a safety scale in the aquatic environment. Its exploitation: in industry related to boating such as boat, dock, pontoon, and securing any body of water. To answer a technical problem: That of the degradation of the objects left under the water permanently. They are support of aquatic life such as seaweed shells ... then they are rendered unusable or even destroyed in time because of this immersion pfolon. This new device keeps in air, environment less aggressive for materials, a ladder whose provision can be sealed from the top (pontoon, boat ...) or from the bottom such: the man to the sea » 1s in an emergency. The invention has application in trades, activities related to water. No new energy is to be used. This device uses its own mass and earthly retraction. DESCRIPTION The device is in three parts: A, B and C see sketch. These diagrams in 5 figures are not contractual or scale but made by show of hands. They are a support for the demonstration. PART: PAPER A, it has discontinuous side uprights, that is to say that the upright 25 two steps or bars that are straight and parallel to each other, pst _9 green amount lai "fun side then at the interval next necrease, taking into account '' ~ # ~ + - s ~ ..rw -:., r ~, ^ n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ receiving the ladder attachment in this device are adjustable on the structure by a simple system of bars built in and sliding between them this to allow the removal of the support (4). Once the adjustment adapted, perforations, from on the other hand, on the built-in bars, allow by bolts or keys, to fix the state.This PART B is connected to the PART C by a common axis (3) as 3 ° PART: PARME C It connects the elements previous to support such as boat, dock ... It is composed of a plate or a counterplate depending on the support where it is to be installed. (4) is equipped with 2X2 equal segments (5) articulated in (6) common axes and (3) common axes with the part B. In lateral view, this part fits into a parallelogram with axes of rotation at the four intersections (3) and (6) therefore deformable. This explains that in the flattened position of the parallelogram, the section (7) is against the support (4) in parallel with the top in installed position and waiting ss Either down in the installed position of use. It is the kinematics of this device that makes the storage in one direction and the element s ur it In this ao areil Or for reasons more mechanical and geometric this system can be positioned outside the plane (4) directly on the boat, the wharf ... Indeed, the reason and interest of the aircraft lies in the fact that the

so segments of structure between the axes (3) and (6) are of large size. The distance from (3) to (6) in parallelogram position closed up gives in the low position, the translation length of the safety scale and thus its penetration into water. In this case, a sufficient submerged rung number to be easily usable even by a fully dressed person. A ladder permanently in the water is destined to be a support of life

marine seaweed shells ... making it slimy, slippery, sharp or

unusable or destroyed by time. In this device the scale is out of

the water. This ladder is equipped for steps down to immerse, a 90 ~ 1l structure increases ue had: the 'a Jr eet f

Claims (1)

CLAIMS1 Rigid ladder comprising horizontal rungs, rungs or steps connected by lateral risers, characterized in that the lateral uprights are discontinuous, between two rungs, the lateral upright being on one side, then at the next rung interval , the lateral amount being on the other side. Claim 2 Rigid ladder according to claim 1, characterized in that each lateral upright comprises between two steps a rectilinear portion. Claim 3 IO Rigid ladder according to claim 2, characterized in that each lateral upright comprises between two rungs a curved portion. Claim 4 Rigid ladder according to any one of the preceding claims, characterized in that it comprises a median central upright. An assembly device comprising a rigid ladder according to any one of the preceding claims and an attachment system for connecting the ladder to a support. A device according to claim 5, characterized in that the fastening system comprises a deformable 2D parallelogram for adjusting the height position of the ladder between a high position corresponding to the off position and a low position corresponding to a position of use. Claim 7 Device according to Claim 6, characterized in that the fastening system comprises a locking system of the parallelogram in the high position. An apparatus according to claim 7, characterized in that the locking system is operable from several points from above or from below. Claim 9 Apparatus according to any one of Claims 6, 7, 8, characterized in that the ladder comprises for the steps which can be immersed a structure which increases its width so as to create a brake during the descent of the ladder.