FR2750720A1 - Scaffolding tube assembly collar with cotter pin - Google Patents

Scaffolding tube assembly collar with cotter pin Download PDF

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Publication number
FR2750720A1
FR2750720A1 FR9608369A FR9608369A FR2750720A1 FR 2750720 A1 FR2750720 A1 FR 2750720A1 FR 9608369 A FR9608369 A FR 9608369A FR 9608369 A FR9608369 A FR 9608369A FR 2750720 A1 FR2750720 A1 FR 2750720A1
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FR
France
Prior art keywords
key
order
notched
cotter pin
articulated
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.)
Withdrawn
Application number
FR9608369A
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French (fr)
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PIGNATELLI FRANCOIS
Original Assignee
PIGNATELLI FRANCOIS
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Publication date
Application filed by PIGNATELLI FRANCOIS filed Critical PIGNATELLI FRANCOIS
Priority to FR9608369A priority Critical patent/FR2750720A1/en
Publication of FR2750720A1 publication Critical patent/FR2750720A1/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/02Connections between parts of the scaffold with separate coupling elements
    • E04G7/06Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/12Clamps or clips for crossing members
    • E04G7/14Clamps or clips for crossing members for clamping the members independently

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The assembly collar for scaffolding tubes comprises fixed jaws (1) and two articulated jaws (1b) which receive the tubes. There is a hammer head bolt, with a slot (2) enabling the penetration of a cotter pin (4), fitting in a conical washer (3). The pin is placed inside the articulated jaw in order to clamp the tube. A locking mechanism (5) retains the notched cotter pin in order to prevent its accidental disengagement by a foreign body.

Description

DESCRIPTIF DU COLLIER A CLAVETTES. DESCRIPTION OF THE KEY COLLAR.

La présente invention, concerne un collier à clavettes pour éléments tubulaires. The present invention relates to a key collar for tubular elements.

Elle vise plus spécialement, à un assemblage très rapide et en toute sécurité des éléments tubulaires d'échafaudage.More specifically, it aims at very rapid and secure assembly of the tubular scaffolding elements.

Ce système de colliers à clavettes présente un certain nombre d'avantages, sur les dispositifs de jonction à vis, découlant notamment de leur rapidité de mise en place par un personnel qualifié ou non.This system of key collars has a certain number of advantages over screw junction devices, arising in particular from their rapidity of installation by qualified or unqualified personnel.

Les colliers à vis, communément utilisés jusqu'à ce jour, comportent de sérieux inconvénients provenant du fait que les principaux organes qui les composent sont dotés d'une médiocre résistances à l'usure, notamment au niveau des vis et boulons, ce qui entraîne leur mise hors d'usage rapide, malgré l'entretien qui peut leur être consacré. Screw collars, commonly used to date, have serious drawbacks from the fact that the main components of which they are made have poor resistance to wear, especially at the level of screws and bolts, which leads to their rapid decommissioning, despite the maintenance which may be devoted to them.

En effet, la vis utilisée, est sujette très largement aux problèmes rencontrés et cités ci-dessous:
1. Aux intempéries, ce qui entraîne inévitablement à la rouille du dit produit.
In fact, the screw used is very subject to the problems encountered and cited below:
1. Weathering, which inevitably leads to rust of said product.

2. Au filetage martelé, abîmé, ce qui l'empêche totalement d'être fonctionnel. 2. Hammered, damaged thread, which completely prevents it from being functional.

3. Aux laitances de ciment, ou autres produits à base de colle, qui bloque obligatoirement le pas de vis, le rendant inutilisable, entraînant de gros dégâts, lors de son dégagement. 3. With laitances of cement, or other glue-based products, which obligatorily blocks the thread, making it unusable, causing great damage, when it is released.

4. A une dépendance sans recours, d'outils supplémentaires, par exemple: clés plate ou autre, ce qui oblige l'utilisateur à se munir des outils nécessaires. 4. A dependence without recourse, additional tools, for example: flat keys or other, which requires the user to bring the necessary tools.

Il existe un raccord à clavettes tel que définit dans le brevet FR 2376709, qui présente de sérieux inconvéniants quand au couple de serrage et à la résistance au glissement des tubes d'échafaudage. En effet, la clavette vient bloquer le tube, mais ne permet pas à celui-ci, d'être emprisonné par une machoire articulée qui lui assure une résistance au glissement sûre, et une couple de serrage important. There is a key connection as defined in patent FR 2376709, which has serious drawbacks when the tightening torque and the sliding resistance of the scaffolding tubes. Indeed, the key blocks the tube, but does not allow it to be trapped by an articulated jaw which provides it with a safe sliding resistance, and a significant tightening torque.

Un des buts de la présente invention est donc de réaliser un collier à clavettes robuste, indéformable, sans augmentation de poids notable, doté de hautes performances au glissement, prenant en considération les détails négatifs, cités ci-dessus, tout en étant d'exécution simple. One of the aims of the present invention is therefore to produce a robust, non-deformable key collar, without significant increase in weight, endowed with high sliding performance, taking into account the negative details, mentioned above, while being of execution. simple.

Un autre objet de l'invention, réside dans l'obtention d'un collier, constitué d'organes inséparables et apte à être commodément et très rapidement mis en place ou démonté.  Another object of the invention lies in obtaining a necklace, consisting of inseparable members and able to be conveniently and very quickly put in place or dismantled.

Un autre avantage, sans en être un des moindre, est outil ne nécessite aucun entretien. Another advantage, without being one of the least, is that it requires no maintenance.

Cette invention est notamment remarquable, en ce que la mâchoire articulée (lb) vient rejoindre la mâchoire fixe (1), en comprimant le tube d'échafaudage, afin de lui assurée un couple de serrage et une résistance au glissement supérieure ou égale au collier à vis. This invention is particularly remarkable, in that the articulated jaw (lb) joins the fixed jaw (1), by compressing the scaffolding tube, in order to provide it with a tightening torque and a slip resistance greater than or equal to the collar to screw.

Un boulon à tete marteau (2) muni d'une lumière, recevant une rondelle conique (3) laisse pénétrer une clavette (4). Cette partie (Fig. 6) vient se placer à l'intérieur de la mâchoire articulée (lb), afin de serrer le tube. Un moyen de blocage (5) vient emprisonner la clavette (4), afin d'empêcher son délogement par un corps étranger. A hammer head bolt (2) provided with a light, receiving a conical washer (3) allows a key (4) to penetrate. This part (Fig. 6) is placed inside the articulated jaw (lb), in order to tighten the tube. A locking means (5) traps the key (4), in order to prevent it from being dislodged by a foreign body.

Selon une variante de l'invention, la clavette (4) est crantée sur le dessus et coopère avec un moyen de blocage (5) afin d'empêcher son délogement accidentel par un corps étranger. According to a variant of the invention, the key (4) is notched on the top and cooperates with a locking means (5) in order to prevent its accidental dislodging by a foreign body.

Ces caractéristiques seront mis en évidences, quand à la description qui suit, ainsi que des dessins annexés. These characteristics will be highlighted when the description which follows, as well as the attached drawings.

La figure 1 nous explique la position exacte des différentes parties que comporte le collier à clavette. Figure 1 explains the exact position of the different parts of the key collar.

Les figures 2 à 5, représentent les éléments qui assurent le couple de serrage et la résistance au glissement
Figure 2 Boulon à tête marteau.
Figures 2 to 5 show the elements that provide the tightening torque and the sliding resistance
Figure 2 Hammer head bolt.

Figure 3 La rondelle conique. Figure 3 The conical washer.

Figure 4 La clavette crantée sur le dessus. Figure 4 The notched key on the top.

Figure 5 Moyen de blocage. Figure 5 Locking means.

La figure 6 nous donne le détail de la partie de serrage montée. Figure 6 gives us the detail of the clamping part mounted.

La figure 7 représente la face avant du moyen de blocage sur la clavette. Figure 7 shows the front face of the locking means on the key.

La figure 8 représente la face arrière du moyen de blocage sur la clavette. Figure 8 shows the rear face of the locking means on the key.

La figure 9 nous montre la perspective de la mise en place de chaque élément. Figure 9 shows us the perspective of the implementation of each element.

On se reporte auxdits croquis, pour décrire un exemple intéressant, bien que nullement limitatif, de réalisation du procédé selon l'invention. Reference is made to said sketches to describe an interesting example, although in no way limitative, of carrying out the method according to the invention.

On rappelle en premier lieu, que les mâchoires articulées (lb), rejoignent celles qui sont fixes (1), par un effet de serrage très résistant, par le fait que la clavette crantée(4), vient s'engager dans la lumière de la tige à tête marteau(2), écrasant la rondelle conique (3) contre la mâchoire articulée(lb), maintenant ainsi le tube engagé.  First of all, it is recalled that the articulated jaws (lb) join those which are fixed (1), by a very resistant clamping effect, by the fact that the notched key (4) engages in the light of the hammer head rod (2), crushing the conical washer (3) against the articulated jaw (lb), thus keeping the tube engaged.

I1 est important de souligner, que le moyen de blocage (5), n'a d'autres fonctions, que celles d'empêcher la clavette crantée (4) de se dégager à cause de la poussée d'un corps étranger tombant dessus. It is important to emphasize that the locking means (5) has no other function than that of preventing the notched key (4) from coming off because of the thrust of a foreign body falling on it.

De manière connue, cette invention s'adapte aux différents procédés de serrage de tubes. In known manner, this invention adapts to different methods of clamping tubes.

1. De manière fixe (Fig. 1): Blocage à angle droit. Les ouvertures de réception des tubes, disposées dans des directions parallèles, ou perpendiculaires. 1. Fixed way (Fig. 1): Locking at right angles. The tube receiving openings, arranged in parallel, or perpendicular directions.

2. De manière articulée (Fig. 10) : Blocage orientable, à angles divers, des tubes, au moyen d'un boulon axial (11). 2. In an articulated manner (Fig. 10): Orientable blocking, at various angles, of the tubes, by means of an axial bolt (11).

3. De manière jumelée (Fig. 11) : Placés côtes à côtes, les ouvertures de réception des tubes, étant disposés dans un même alignement. 3. In a twinned manner (Fig. 11): Placed side by side, the openings for receiving the tubes, being arranged in the same alignment.

4. On peut également fixé par soudure un demi-collier sur n'importe quel élément d'échafaudage, afin de répondre à tous les besoins, par exemple : béquilles de supports, tirant-poussant, consoles d'appuis, socles d'appuis articulés suivant un terrain pentu, etc... En fait, sur tous les éléments tubulaires à assembler. 4
Il est important de démontrer la robustesse de la clavette crantée (4), tout en étant légère.
4. One can also fix by welding a half-collar on any scaffolding element, in order to meet all the needs, for example: support crutches, push-pull, support consoles, support bases articulated on a sloping ground, etc ... In fact, on all the tubular elements to be assembled. 4
It is important to demonstrate the robustness of the notched key (4), while being light.

Comme le montre la figure 9, la surface de chaque élément, qui compose la clavette de serrage, est équivalente ou presque à celle de la vis à tête marteau.  As shown in Figure 9, the area of each element, which makes up the clamping key, is almost equivalent to that of the hammer head screw.

Claims (3)

REVENDTCATIONS I. Collier à clavettes pour rassemblage d'éléments tubulaires, par exemple d'éléments tubulaires d'échafaudage, comprenant deux mâchoires fixes (1), et deux mâchoires articulées (lb), pour la réception des tubes, caractérisé en ce qu'il comprend au moins un boulon à tête marteau muni d'une lumière (2), recevant une rondelle conique (3), laissant pénétrer une clavette (4) . Cette partie (Fig. 6) vient se placer à l'intérieur de la mâchoire articulée (lb), afin de serrer le tube. Un moyen de blocage (5) vient emprisonner la clavette crantée (4), afin d'empêcher son délogement par un corps étranger. I. Key collar for assembling tubular elements, for example tubular scaffolding elements, comprising two fixed jaws (1), and two articulated jaws (lb), for receiving the tubes, characterized in that it comprises at least one hammer head bolt provided with a light (2), receiving a conical washer (3), allowing a key (4) to penetrate. This part (Fig. 6) is placed inside the articulated jaw (lb), in order to tighten the tube. A locking means (5) traps the notched key (4), in order to prevent it from being dislodged by a foreign body. 2. Collier à clavettes selon la revendication (1), caractérisé en ce que la 2. Key collar according to claim (1), characterized in that the clavette est crantée sur le dessus. key is notched on the top. 3. Collier à clavettes selon les revendication (1) et (2), caractérisé en ce que 3. Key collar according to claims (1) and (2), characterized in that le moyen de blocage vient emprisonner la clavette crantée, afin d'empêcher son the locking means confines the notched key, in order to prevent its délogement accidentel par un corps étranger.  accidental removal by a foreign body.
FR9608369A 1996-07-02 1996-07-02 Scaffolding tube assembly collar with cotter pin Withdrawn FR2750720A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9608369A FR2750720A1 (en) 1996-07-02 1996-07-02 Scaffolding tube assembly collar with cotter pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9608369A FR2750720A1 (en) 1996-07-02 1996-07-02 Scaffolding tube assembly collar with cotter pin

Publications (1)

Publication Number Publication Date
FR2750720A1 true FR2750720A1 (en) 1998-01-09

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FR9608369A Withdrawn FR2750720A1 (en) 1996-07-02 1996-07-02 Scaffolding tube assembly collar with cotter pin

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FR (1) FR2750720A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195533A1 (en) * 1999-06-14 2002-04-10 Kawasaki Jukogyo Kabushiki Kaisha Tightening bolt

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR58924E (en) * 1948-12-22 1954-04-22 Device for connecting two non-coaxial tubes
FR1106379A (en) * 1953-08-18 1955-12-19 Fabrieken Van Klinknagels En S Clamping device for scaffolding
DE1911810A1 (en) * 1968-03-11 1969-10-16 Koopmans Kreeft Johanna Beatri Clamping device for scaffolding
FR2220648A1 (en) * 1973-03-07 1974-10-04 Zaidan Joseph
DE2534927A1 (en) * 1975-08-05 1977-02-17 Rossi Luigi Dr Scaffolding tube clamping bracket with wedge plate - has perpendicular wedge location to allow close installation
GB2081797A (en) * 1980-08-09 1982-02-24 Layher Eberhard Scaffold clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR58924E (en) * 1948-12-22 1954-04-22 Device for connecting two non-coaxial tubes
FR1106379A (en) * 1953-08-18 1955-12-19 Fabrieken Van Klinknagels En S Clamping device for scaffolding
DE1911810A1 (en) * 1968-03-11 1969-10-16 Koopmans Kreeft Johanna Beatri Clamping device for scaffolding
FR2220648A1 (en) * 1973-03-07 1974-10-04 Zaidan Joseph
DE2534927A1 (en) * 1975-08-05 1977-02-17 Rossi Luigi Dr Scaffolding tube clamping bracket with wedge plate - has perpendicular wedge location to allow close installation
GB2081797A (en) * 1980-08-09 1982-02-24 Layher Eberhard Scaffold clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195533A1 (en) * 1999-06-14 2002-04-10 Kawasaki Jukogyo Kabushiki Kaisha Tightening bolt
EP1195533A4 (en) * 1999-06-14 2003-03-19 Kawasaki Heavy Ind Ltd Tightening bolt

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