FR2750720A1 - Scaffolding tube assembly collar with cotter pin - Google Patents
Scaffolding tube assembly collar with cotter pin Download PDFInfo
- 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
- Authority
- 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- Withdrawn
Links
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
- E04G7/00—Connections between parts of the scaffold
- E04G7/02—Connections between parts of the scaffold with separate coupling elements
- E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
- E04G7/12—Clamps or clips for crossing members
- E04G7/14—Clamps or clips for crossing members for clamping the members independently
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
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)
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 |
Family
ID=9493734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9608369A Withdrawn FR2750720A1 (en) | 1996-07-02 | 1996-07-02 | Scaffolding tube assembly collar with cotter pin |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2750720A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1195533A1 (en) * | 1999-06-14 | 2002-04-10 | Kawasaki Jukogyo Kabushiki Kaisha | Tightening bolt |
Citations (6)
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 |
-
1996
- 1996-07-02 FR FR9608369A patent/FR2750720A1/en not_active Withdrawn
Patent Citations (6)
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)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |