FR2972473A1 - Key device for tightening and loosening of stays used on building site for performing e.g. casting and drying slabs and lintels, at time of propping operations, has hook and sliding tube adapted to stays of building - Google Patents
Key device for tightening and loosening of stays used on building site for performing e.g. casting and drying slabs and lintels, at time of propping operations, has hook and sliding tube adapted to stays of building Download PDFInfo
- Publication number
- FR2972473A1 FR2972473A1 FR1100728A FR1100728A FR2972473A1 FR 2972473 A1 FR2972473 A1 FR 2972473A1 FR 1100728 A FR1100728 A FR 1100728A FR 1100728 A FR1100728 A FR 1100728A FR 2972473 A1 FR2972473 A1 FR 2972473A1
- Authority
- FR
- France
- Prior art keywords
- stays
- hook
- building
- loosening
- tightening
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F1/00—Combination or multi-purpose hand tools
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Description
i DESCRIPTION La présente invention concerne un outil : clé facilitant le serrage ou le desserrage des étais de maçonnerie, sans nuisance sonore et sans risque de détérioration du matériel Il n'est pas rare que le coulage d'un plancher requiert en sous-face la mise en oeuvre de plusieurs dizaines d'étais provisoires. La technique antérieure consistait à utiliser des outils de types marteaux, pieds de biche, barres à mine lourdes pénibles à manipuler, ou manches d'outils risquant d'être brisés par l'effort, source de bruit et de danger. The present invention relates to a tool: key facilitating the clamping or loosening of the masonry props, without noise nuisance and without risk of deterioration of the material It is not uncommon that the pouring of a floor requires on the underside the implementation of several tens of provisional struts. The prior art was to use hammer-type tools, crowbars, heavy-duty barbels that are difficult to handle, or tool handles that could be broken by stress, a source of noise and danger.
L'étaiement et la dépose étaient donc des opérations fastidieuses et délicates. Serrer ou desserrer des étais entraînait des nuisances sonores, des coups ou secousses sur les étais, engendrant des risques de fragilisation des structures. Shoring and removal were therefore tedious and delicate operations. Tightening or loosening struts caused noise, blows or jolts on the props, creating the risk of weakening structures.
En présence de la totalité des charges après séchage de l'ouvrage, les écrous d'étais étaient difficiles à débloquer et le maçon devait s'aider d'un levier souvent de fortune. Le maçon travaille toujours dans des conditions difficiles, il manipule des charges lourdes et fournit des efforts physiques importants. In the presence of all the loads after drying of the work, the prop nuts were difficult to unlock and the builder had to use a lever often fortuitous. The mason still works in difficult conditions, he handles heavy loads and provides significant physical effort.
Quelques soient les risques de chantier, les obligations sécuritaires, réglementaires, ajoutent à la pénibilité d'un métier déjà harassant (poids, et encombrement des protections individuelles). Cette invention a été étudiée pour pallier à ces inconvénients majeurs. La présente invention est une clé réalisée en alliage léger prolongée d'une partie tubulaire coulissante pour le serrage et le desserrage des étais. Figure 1 représentant une clé à étais partie tubulaire dépliée. La mise en place des étais nécessite une excellente garantie de tenue sur les chantiers. Afin de répondre aux besoins impératifs de l'assurance de la mise en place et la bonne tenue des étais, cet outil assure la certitude d'un bon serrage et desserrage des étais, sans coup de marteau, éliminant de ce fait la nuisance sonore particulièrement gênante en zone urbaine. Aucune connaissance ou habileté particulière de la part des opérateurs n'est nécessaire. La présente invention : clé à étais permet de serrer et surtout de desserrer les étais mis en place pendant la coulée et le séchage des dalles et linteaux. Sa simplicité et sa fonctionnalité en font une clé légère, adaptée à la plupart des dispositifs de serrage rencontrés sur les étais. Figure 2. A l'une des extrémités, son côté « crochet » Figure 3 , allié au bras de levier déplié est spécialement étudié pour les étais à 2 poignées.Whatever the risks of construction, safety obligations, regulatory, add to the arduousness of an already exhausting trade (weight, and size of personal protection). This invention has been studied to overcome these major drawbacks. The present invention is a wrench made of light alloy extended tubular portion sliding for clamping and loosening struts. Figure 1 showing a spanner unfolded tubular part. The installation of the struts requires an excellent guarantee of holding on the building sites. In order to meet the imperative needs of the insurance of the installation and the good behavior of the props, this tool ensures the certainty of a good tightening and loosening of the struts, without hammering, thus eliminating the noise nuisance particularly annoying in urban area. No special knowledge or skill on the part of the operators is necessary. The present invention: spanner is used to tighten and especially to loosen the props put in place during the casting and drying slabs and lintels. Its simplicity and functionality make it a lightweight key, suitable for most clamping devices encountered on props. Figure 2. At one end, its "hook" side Figure 3, combined with the unfolded lever arm is specially designed for 2-handle props.
40 A l'autre extrémité, son côté tubulaire Figure 5 est spécialement adapté aux étais munis d'une tige. Les dessins annexes illustrent l'invention. La Figure 1 constitue une représentation selon l'invention en perspective de la clé à étais dépliée.At the other end, its tubular side Figure 5 is specially adapted to struts provided with a rod. The accompanying drawings illustrate the invention. Figure 1 is a representation according to the invention in perspective of the unfolded key.
45 La Figure 2 constitue une représentation selon l'invention de la clé à étais vue de profil. Repère 1 apparaît distinctement le côté « crochet » Repère 2 apparaît distinctement le côté tubulaire replié. Repère 3 apparaît distinctement la découpe.Figure 2 is a representation according to the invention of the spanner viewed in profile. Mark 1 clearly appears on the "hook" side. Mark 2 clearly shows the folded tubular side. Mark 3 appears distinctly the cut.
50 La Figure 3 constitue une représentation en perspective de la clé à étais selon l'invention, bras de levier déployé pour étais à deux poignées. La Figure 4 constitue une représentation en perspective de la clé à étais selon l'invention, bras de levier déplié pour étais à deux poignées. La Figure 5 constitue une représentation en perspective de la clé à étais 55 dépliée extrémité tubulaire selon l'invention pour étais munis d'une tige. Dispositif permettant par son extrémité tubulaire et son extrémité « crochet » son utilisation quelque soit le type d'étais : étai à deux poignées ou étai à queue ou tige, l'invention permet de serrer et surtout de desserrer les étais mis en place pendant la coulée et le séchage des dalles et des linteaux.Figure 3 is a perspective view of the stud key according to the invention, lever arm deployed for props with two handles. Figure 4 is a perspective representation of the stud key according to the invention, unfolded lever arm for props with two handles. Figure 5 is a perspective view of the open end end wrench 55 in accordance with the invention for struts provided with a rod. Device allowing by its tubular end and its "hook" end its use regardless of the type of strut: two-handle stay or stay with tail or rod, the invention allows to tighten and especially to loosen the struts set up during the casting and drying slabs and lintels.
60 Réalisé en alliage léger, le levier se rétracte pour en limiter l'encombrement. Une découpe latérale Figure 2 Repère 3 facilite l'accrochage à la ceinture de l'opérateur afin de garder l'outil à portée de main. L'opérateur bénéficie d'une clé facile d'utilisation, légère, adaptée à la plupart des étais employés sur chantiers, pouvant être accrochée par un anneau à la ceinture.60 Made of light alloy, the lever retracts to limit its size. A side cut Figure 2 Mark 3 facilitates the hooking on the operator's belt to keep the tool at hand. The operator benefits from an easy-to-use key, light, suitable for most struts used on construction sites, which can be hung by a ring at the waist.
65 La présente invention est destinée à faciliter la tâche du maçon grâce à un outil polyvalent léger. The present invention is intended to facilitate the task of the mason with a lightweight versatile tool.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1100728A FR2972473A1 (en) | 2011-03-10 | 2011-03-10 | Key device for tightening and loosening of stays used on building site for performing e.g. casting and drying slabs and lintels, at time of propping operations, has hook and sliding tube adapted to stays of building |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1100728A FR2972473A1 (en) | 2011-03-10 | 2011-03-10 | Key device for tightening and loosening of stays used on building site for performing e.g. casting and drying slabs and lintels, at time of propping operations, has hook and sliding tube adapted to stays of building |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2972473A1 true FR2972473A1 (en) | 2012-09-14 |
Family
ID=45093793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1100728A Pending FR2972473A1 (en) | 2011-03-10 | 2011-03-10 | Key device for tightening and loosening of stays used on building site for performing e.g. casting and drying slabs and lintels, at time of propping operations, has hook and sliding tube adapted to stays of building |
Country Status (1)
Country | Link |
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FR (1) | FR2972473A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3703269A (en) * | 1969-09-17 | 1972-11-21 | Miquel Casas Meriz | Adjustable support beam |
FR2188648A7 (en) * | 1972-06-09 | 1974-01-18 | Loeb Sa | |
KR20100118963A (en) * | 2010-06-24 | 2010-11-08 | 배영진 | A multi purpose wrench for a support |
-
2011
- 2011-03-10 FR FR1100728A patent/FR2972473A1/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3703269A (en) * | 1969-09-17 | 1972-11-21 | Miquel Casas Meriz | Adjustable support beam |
FR2188648A7 (en) * | 1972-06-09 | 1974-01-18 | Loeb Sa | |
KR20100118963A (en) * | 2010-06-24 | 2010-11-08 | 배영진 | A multi purpose wrench for a support |
Non-Patent Citations (1)
Title |
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DATABASE WPI Week 201102, Derwent World Patents Index; AN 2010-P24413, XP002669312 * |
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