FR2641571A1 - Tubular safety rung - Google Patents
Tubular safety rung Download PDFInfo
- Publication number
- FR2641571A1 FR2641571A1 FR8900298A FR8900298A FR2641571A1 FR 2641571 A1 FR2641571 A1 FR 2641571A1 FR 8900298 A FR8900298 A FR 8900298A FR 8900298 A FR8900298 A FR 8900298A FR 2641571 A1 FR2641571 A1 FR 2641571A1
- Authority
- FR
- France
- Prior art keywords
- rung
- branches
- tubular
- tubular safety
- curved element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
- E06C9/04—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
Description
L'invention a trait à un échelon tubulaire de sécurité destiné a être aiicré dans la paroi verticale d'ure ouvrage en maçonnerie ou en béton, tels que puits, réservoirs, regards de visite, cheminées et autres et constitué d'un élément recourbé en forme de "U" composé d'un tube métallique et, éventuellement, d'un revêtement de protection enrobant ce dernier. The invention relates to a tubular safety rung intended to be embedded in the vertical wall of a masonry or concrete structure, such as wells, tanks, manholes, chimneys and the like and consisting of a curved element in "U" shape composed of a metal tube and, optionally, a protective coating coating the latter.
On connait déja, par le document FR-A-2 071 601 un échelon tubulaire pouvant être ancré dans un ouvrage en maçonnerie ou en béton, constitué d'un élément recourbé en torme de "U" composé d'un tube métallique et d'un revêtement de protection enrobant ce dernier. Les extrémités à ancrer de cet élément recourbé sont engagées dans des douilles de fixation dont la surface externe est dotée de redans annulaires, lesdites douilles étant enfoncées dans des trous correspondant pratiqués dans l'ouvrage en maçonner je ou en béton.Soit sur i chnLier, les douilles sont engage dans lesdits trous et, en second lieu, on introduit les extrémités de l'élément recourbé dans les douilles, soit les douilles sont rendues solidaires en atelier de l'élément recourbé et il suffit, dans ce dernier, d'ancrer l'ensemble dé l'échelon tubulaire. We already know, from document FR-A-2 071 601, a tubular rung which can be anchored in a masonry or concrete structure, consisting of a curved element in the shape of a "U" torch composed of a metal tube and a protective coating coating the latter. The ends to be anchored of this curved element are engaged in fixing sockets the external surface of which is provided with annular steps, said sockets being inserted into corresponding holes made in the masonry or concrete work. the sockets are engaged in said holes and, secondly, the ends of the curved element are introduced into the sockets, or the sockets are made integral in the workshop with the curved element and it is sufficient, in the latter, to anchor the whole tubular rung.
Uuel que soit le procédé utilisé, il faut assurer, d'une part, la liaison entre l'élément recourbé et les douilles et, d'autre part, la liaison entre les douilles et les trous pratiques dans l'ouvrage en maçonnerie ou en béton. Ainsi, il y a un double risque de dissolution des liaisons. Whatever the process used, it is necessary to ensure, on the one hand, the connection between the curved element and the sockets and, on the other hand, the connection between the sockets and the practical holes in the masonry work or in concrete. Thus, there is a double risk of dissolution of the bonds.
Par ailleurs, on augmente le coût de cet échelon, non seulement en raison de la double liaison, mais également, du fait de l'utilisation de deux pièces supplémentaires d savoir les deux douilles d'ancrage. Furthermore, the cost of this step is increased, not only because of the double bond, but also because of the use of two additional parts, namely the two anchor sockets.
La présente invention a pour but de remédier à ces i nconvénieiîts. The present invention aims to remedy these i nconvénieiîts.
A cet effet, l'inveîîtion concerì,e un échelon tubulaire de sécurité destiné à être ancré dans la paroi verticale d'un ouvrage en maçonnerie ou en béton, tels que puits, réservoirs, regards de visite, cheminées et autres et constitués d'un élément recourbé en forme d'un "U" composé d'un tube métallique, et, éventuellement, d'un revêtement de protection enrobant ce dernier, caractérisé en ce que l'élément recourbé comporte des branches présentant au moins une boursouflure périphérique. To this end, the invention relates to a tubular safety rung intended to be anchored in the vertical wall of a masonry or concrete structure, such as wells, tanks, manholes, chimneys and the like. a curved element in the shape of a "U" composed of a metal tube, and, optionally, a protective coating coating the latter, characterized in that the curved element comprises branches having at least one peripheral blister.
Selon une autre caractéristique de l'invention, la boursouflure périphérique est située au droit des extrémités libres des branches. According to another characteristic of the invention, the peripheral blister is located in line with the free ends of the branches.
Selon une autre caracteristique de l'invention, les branches comportent des extrémités libres repoussées. According to another characteristic of the invention, the branches have repelled free ends.
Les avantages obtenus grace à cette invention consistent essentiellement en ce que, tout en diminuant le cout,on augmente la sécurité d'ancrage en supprimant un des risques de dissolution de liaisons en se limitant à une seule liaison situé entre l'élément recourbé et l'ouvrage en maçonnerie ou en béton, par élimination de la liaison entre 3'élément recourbé et les douilles telles que connues dans I'art antérieur. The advantages obtained thanks to this invention consist essentially in that, while reducing the cost, the anchoring safety is increased by eliminating one of the risks of dissolution of connections by limiting itself to a single connection located between the curved element and the masonry or concrete structure, by eliminating the connection between the curved element and the sockets as known in the prior art.
L'invelltlorl sera bien comprise en se référant à la description suivante faite à titre d'exemple non limitatif et aux dessins ci-annexés dans lesquels
- la figure 1 est une vue en élévation d'un échelon tubulaire de sécurité conforme à l'invention
- la figure 2 est une vue de gauche de cet échelon tubulaire
- la figure 3 est une vue en plan dudit échelon tubulaire;
- la figure 4 est une vue agrandie de l'extrémité epousste
oll se réLère aux ditiérentes figures. L'échelon tubulaire de sécurité est constitué d'un élément recourbe en forme de "lJ" 1.Cet élément 1 présente un corps central 2 sur lequel repose le pied de l'usager et deux branches latérales 3,4 reliées au corps central 2 par des segments curvilignes 5,6. Lesdites branches 3,4, se composent d'un segment droit Z et d'un segment curviligne 8 aboutant aux segments curvilignes 5,6. En raison de cette forme particulière, on évite que le pied de l'usager glisse latéralement pouvant éventuellement provoquer la chute de celui-ci. Ainsi, le pied est bloqué latéralement par le
Segment curviligne 8 et le segment droit des branches 3,4.The invelltlorl will be clearly understood with reference to the following description given by way of nonlimiting example and to the attached drawings in which
- Figure 1 is an elevational view of a tubular safety rung according to the invention
- Figure 2 is a left view of this tubular rung
- Figure 3 is a plan view of said tubular rung;
- Figure 4 is an enlarged view of the married end
oll refers to the various figures. The tubular safety rung consists of a curved element in the shape of an "lJ" 1. This element 1 has a central body 2 on which the user's foot rests and two lateral branches 3,4 connected to the central body 2 by curvilinear segments 5.6. Said branches 3,4 consist of a straight segment Z and a curvilinear segment 8 leading to the curvilinear segments 5,6. Due to this particular shape, the user’s foot is prevented from sliding laterally, possibly causing the user to fall. Thus, the foot is blocked laterally by the
Curvilinear segment 8 and the straight segment of the branches 3,4.
Avatstageusement, l'élément recourbé 1 est un tube métallique pouvant être éventuellement recouvert d'un revêtement, d'une part, protégeant le tube métallique envers les effets de corrosion et, d'autre part, annihilant tout risque de drapage du pied de l'usager, notamment, Si le revêtement comporte, sur sa face externe, des aspérités dppropriVe. Advantageously, the curved element 1 is a metal tube which can possibly be covered with a coating, on the one hand, protecting the metal tube against the effects of corrosion and, on the other hand, eliminating any risk of draping of the foot of the 'user, in particular, If the coating has, on its outer face, rough edges.
Selon l'lrlverltlorl, 1s branches 3,4 comportent au moins une boursouSlure périphérique 9,10. Préférentiellement, cette boursoullure périphérique 9,)0 est située à l'extrémité libre 11,12 des branches 3,4. Lors de la mise en place de l'échelon dans l'ouvrage en maçonnerie ou en béton 13, lesdites boursouflures périphériques 9,10 servent de moyen d'ancrage audit échelon tubulaire de protection. According to lrlverltlorl, 1s branches 3,4 have at least one peripheral purse 9,10. Preferably, this peripheral blister 9,) 0 is located at the free end 11.12 of the branches 3.4. When the rung is placed in the masonry or concrete structure 13, said peripheral blisters 9, 10 serve as an anchoring means for said tubular protective rung.
Pour la réalisation de ces boursouflures périphériques 9,10, on préconise un repoussage des extrémités libres 11,12 des branches 3,4 du tube métallique. For the production of these peripheral blisters 9, 10, it is recommended to push the free ends 11, 12 of the branches 3, 4 of the metal tube.
Bien que l'invention ait été décrite à propos d'une forme de réalisation particulière, il est bien entendu qu'elle n'y est nullement limitée et qu'on peut y apporter diverses modifications de formes, de matériaux et de combinaisons de ces divers éléments, sans pour cela s'éloigner du cadre et de l'esprit de l'invention. Although the invention has been described in connection with a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to the forms, materials and combinations of these. various elements, without departing from the scope and spirit of the invention.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8900298A FR2641571A1 (en) | 1989-01-09 | 1989-01-09 | Tubular safety rung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8900298A FR2641571A1 (en) | 1989-01-09 | 1989-01-09 | Tubular safety rung |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2641571A1 true FR2641571A1 (en) | 1990-07-13 |
Family
ID=9377644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8900298A Pending FR2641571A1 (en) | 1989-01-09 | 1989-01-09 | Tubular safety rung |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2641571A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2827905A1 (en) | 2001-07-27 | 2003-01-31 | Henri Monte | Safety ladder has rungs roughened by applying coating of resin and particles of hard material |
WO2011006036A3 (en) * | 2009-07-10 | 2012-11-22 | Illinois Tool Works Inc. | Cast-in connector |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH359102A (en) * | 1957-11-27 | 1961-12-15 | Zenhaeusern Heinrich | Climbing device with protective cover |
FR2384984A1 (en) * | 1977-03-26 | 1978-10-20 | Nelles Wilhelm | DISTANCE CONNECTION |
EP0223725A1 (en) * | 1985-10-23 | 1987-05-27 | M.S.U. MATERIEL DE SECURITE URBAIN Société à responsibilité limitée dite: | Anchor step iron and fastening method |
-
1989
- 1989-01-09 FR FR8900298A patent/FR2641571A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH359102A (en) * | 1957-11-27 | 1961-12-15 | Zenhaeusern Heinrich | Climbing device with protective cover |
FR2384984A1 (en) * | 1977-03-26 | 1978-10-20 | Nelles Wilhelm | DISTANCE CONNECTION |
EP0223725A1 (en) * | 1985-10-23 | 1987-05-27 | M.S.U. MATERIEL DE SECURITE URBAIN Société à responsibilité limitée dite: | Anchor step iron and fastening method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2827905A1 (en) | 2001-07-27 | 2003-01-31 | Henri Monte | Safety ladder has rungs roughened by applying coating of resin and particles of hard material |
WO2011006036A3 (en) * | 2009-07-10 | 2012-11-22 | Illinois Tool Works Inc. | Cast-in connector |
AU2010202684B2 (en) * | 2009-07-10 | 2017-02-16 | Illinois Tool Works Inc. | Cast-in connector |
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