FR2643950A1 - Tubular scaffolding collar with locking preventing the wedge from moving back - Google Patents

Tubular scaffolding collar with locking preventing the wedge from moving back Download PDF

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Publication number
FR2643950A1
FR2643950A1 FR8903265A FR8903265A FR2643950A1 FR 2643950 A1 FR2643950 A1 FR 2643950A1 FR 8903265 A FR8903265 A FR 8903265A FR 8903265 A FR8903265 A FR 8903265A FR 2643950 A1 FR2643950 A1 FR 2643950A1
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France
Prior art keywords
collar
key
rod
wedge
scaffolding
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Granted
Application number
FR8903265A
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French (fr)
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FR2643950B1 (en
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Individual
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Priority to FR8903265A priority Critical patent/FR2643950B1/en
Publication of FR2643950A1 publication Critical patent/FR2643950A1/en
Application granted granted Critical
Publication of FR2643950B1 publication Critical patent/FR2643950B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes

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

Abstract

Device making it possible to keep a scaffolding tube in a curved U-shaped collar provided with a wedge. It comprises a U-shaped collar 1 in which is placed a scaffolding tube 2 traversed right through by a wedge 4. On an external face is placed a locking device composed of a bent rod or rod with a ring 8, with a compressed internal spring 9, which rod and spring are placed in a cylindrical support 10 allowing the device to be closed by passing the rod into an oblong hole 11. The two collars are joined together by a bolt 12 placed in a hole 13 produced at the base of the collar which comprises a shoulder 14. This device may be used in the field of construction, on work sites, for scaffolding intended to support walkways, or any other construction element.

Description

DEMANDE DE BREVET D'INVENTION
COLLIER D'ECHAFAUDACE TUBULAIRE AVEC VERROUILLAGE ANTI-RETOUR DE CLAVETTE
La présente invention concerne un collier en forme de U incurvé muni d'une clavette, permettant de maintenir dans celui-ci un tube d'échafaudage.PATENT INVENTION APPLICATION
TUBULAR SCAFFOLDING NECKLACE WITH NON-RETURN KEY LOCK
The present invention relates to a curved U-shaped collar provided with a key, making it possible to hold therein a scaffolding tube.

Dans des dispositifs connus de ce genre, la clavette, dont une extrémité se situe à l'extérieur du collier, est sensible au moindre choc. Si celui-ci survient, causé par exemple, par la chute d'un objet, la clavette risque de se démonter. Le tube allongé supporte par le collier n'est alors plus maintenu et présente de grands risques pour les utilisateurs de l'échafaudage. D'autres dispositif6 possèdent un système de fermeture a
l'aide de chaines ou de eSbles. Xais ces liens d'attache ne présentent pas de solidité suffisante et peuvent eider * tout moment, notamment sous l'effet d'un choc. Ils ne présentent alors plus aucune sécurité pour les personnes travaillant sur ces échafaudages.De plus, les tubes en fond de collier sont écrasés par la tête des boulons de fixation des-colliers entre eux.In known devices of this kind, the key, one end of which is located outside the collar, is sensitive to the slightest shock. If it occurs, caused for example by the fall of an object, the key may disassemble. The elongated tube supported by the collar is then no longer maintained and presents great risks for users of the scaffolding. Other devices6 have a locking system a
using chains or eSbles. Xais these attachment links do not have sufficient solidity and can eider * at any time, in particular under the effect of a shock. They no longer present any security for the people working on these scaffolds. In addition, the tubes at the bottom of the collar are crushed by the head of the bolts securing the collars to each other.

Le dispositif suivant l'invention permet d'éviter ces inconvénients. The device according to the invention makes it possible to avoid these drawbacks.

Dans celui-ci en effet, il est possible de maintenir un tube d'échafaudage dans un collier épaulé qui épouse sa forme sans que le boulon de fixation des différents colliers écrase ce tube ; le maintien étant renforcé par un système anti-retour de la clavette.In this one indeed, it is possible to maintain a scaffolding tube in a shouldered collar which follows its shape without the fixing bolt of the various collars crushing this tube; the support being reinforced by an anti-return system of the key.

Le dispositif objet de l'invention comporte un collier en forme de U incurvé avec un épaulement d'appui du tube, permettant de maintenir un tube d'échafaudage. The device which is the subject of the invention comprises a curved U-shaped collar with a support shoulder for the tube, making it possible to hold a scaffolding tube.

Ce collier est réalisé en acier ou tout autre alliage. Sa forme incurvée lui permet d'une part, de recevoir à sa base, par l'intermédiaire d'un trou, un boulon qui pourra l'ajuster de manière fixe ou articulée un autre collier de même type, sans écraser le tube a l'endroit du boulon de fixation. This necklace is made of steel or any other alloy. Its curved shape allows it on the one hand, to receive at its base, via a hole, a bolt which can adjust it fixedly or articulated another collar of the same type, without crushing the tube a location of the fixing bolt.

D'autre part de soutenir un tube de forme quelconque, avec lequel il fera corps grace 9 sa forme arrondie. Il comprend deux ouvertures latérales dans lesquelles est glissée une clavette à deux faces non parallèles, avec une extrémité comprenant des débords formant un épaulement, et une extrémité plus haute et dont la section est en forme de U. Du côté de l'extrémité la plus haute de la clavette, est réalisé un trou oblong par l'intermédiaire duquel s'effectue le blocage du système de verrouillage.On the other hand to support a tube of any shape, with which it will form a body thanks to its rounded shape. It comprises two lateral openings into which a key with two non-parallel faces is slid, with one end comprising overhangs forming a shoulder, and a higher end and whose section is U-shaped. On the side of the most at the top of the key, an oblong hole is made through which the locking system is blocked.

Le collier présente un système de verrouillage soudé sur une face externe ; ce système est composé d'un support cylindrique dans lequel est placée une tige coudée ou à anneau comprenant un ressort de rappel. Ce ressort, plus ou moins comprimé selon la position de la tige, permet de maintenir celle-ci dans le trou oblong prévu à cet effet dans la clavette. The collar has a locking system welded to an external face; this system consists of a cylindrical support in which is placed a bent or ring rod comprising a return spring. This spring, more or less compressed depending on the position of the rod, keeps it in the oblong hole provided for this purpose in the key.

En position -de sécurité d'utilisation, la tige est actionnée par le ressort interne qui la maintient en position de sécurité, avec son extrémité engagée dans le trou oblong de la clavette. In the position of safety of use, the rod is actuated by the internal spring which keeps it in the safety position, with its end engaged in the oblong hole of the key.

En position de serrage du tube, la clavette est coulissée vers le centre du collier, ltextrémité de la tige coudée s'enclenche automatiquement dans le trou de la clavette prévu à cet effet, produisant ainsi un blocage de sécurité du dispositif. In the tube clamping position, the key is slid towards the center of the collar, the end of the bent rod automatically engages in the hole of the key provided for this purpose, thus producing a safety blocking of the device.

Le dessin annexé illustre, titre d'exemple, un mode de réalisation du dispositif conforme a la présente invention. The appended drawing illustrates, by way of example, an embodiment of the device according to the present invention.

Tel qu'il est représenté, le dispositif représente
Figure 1 : une vue d'ensemble du dispositif. As shown, the device represents
Figure 1: an overview of the device.

Figure 2 ; une vue du collier et du cystése de verrouillage. Figure 2; a view of the collar and the locking cyst.

Figure 3 : une vue de la clavette. Figure 3: a view of the key.

Figure 4 : une coupe de la clavette selon la droite AA.  Figure 4: a section of the key along the line AA.

Figure 5 : une vue de l'assemblage du dispositif avec un autre dispositif. Figure 5: a view of the assembly of the device with another device.

La figure 1 comprend un collier en forme de U incurvé 1 , dans lequel est placé un tube d'échafaudage 2 ; le collier comportant deux ouvertures 3 par lesquelles est glissez une clavette 4 comportant une extrémité avec déborda formant un épaulement 5 et une extrémité plus haute 6 ; un système de verrouillage composé d'une tige coudée ou avec anneau 8 avec ressort interne comprimé placés dans un support cylindrique 10. Figure 1 comprises a curved U-shaped collar 1, in which is placed a scaffolding tube 2; the collar having two openings 3 through which is slide a key 4 having one end with overhang forming a shoulder 5 and a higher end 6; a locking system composed of a bent rod or with a ring 8 with compressed internal spring placed in a cylindrical support 10.

La figure 2 represente un collier en forme de U incurvé 1 avec épaulement d'appui du tube sur lequel sont effectuées deux ouvertures 3 destinées au passage de la clavette. Figure 2 shows a collar in the shape of a curved U 1 with support shoulder of the tube on which are made two openings 3 for the passage of the key.

A l'extérieur du collier, est placé un dispositif de verrouillage comportant une tige coudée ou à anneau 8 avec ressort interne comprimé 9 disposée dans un support cylindrique 10 qui permet un blocage de la clavette.On the outside of the collar is placed a locking device comprising a bent rod or a ring 8 with compressed internal spring 9 disposed in a cylindrical support 10 which allows the key to be blocked.

La figure 3 représente une vue de la clavette 4 , qui présente une extrémité avec déborda formant épaulement 5 et une extrémité plus haute 6, ainsi qu'un trou oblong 11 dans lequel est placée l'extrémité de la tige coudée ou å anneau du système de verrouillage. Figure 3 shows a view of the key 4, which has an end with overhang forming a shoulder 5 and a higher end 6, as well as an oblong hole 11 in which is placed the end of the bent rod or the ring of the system lock.

La figure 4 représente une coupe suivant la droite AA de la clavette 4 dont la section est en forme de U, avec au centre de la clavette un trou oblong 11 permettant un blocage du dispositif à l'aide d'une tige coudée ou à anneau. Figure 4 shows a section along the right AA of the key 4 whose section is U-shaped, with in the center of the key an oblong hole 11 for blocking the device using a bent rod or ring .

La figure 5 représente une vue de face du dispositif ; il comprend un collier 1 en forme de U incurvé avec épaulement d'appui du tube, dans
lequel est placé un tube d'échafaudage 2 et traversé de part et d'autre par une clavette 4.FIG. 5 represents a front view of the device; it comprises a collar 1 in the shape of a curved U with a support shoulder for the tube, in
which is placed a scaffolding tube 2 and crossed on either side by a key 4.

Sur une face externe est placé un dispositif de verrouillage, composé d'une tige coudée ou à anneau 8 avec ressort interne comprimé 9 placés dans un support cylindrique 10 permettant la fermeture de l'ensemble par le passage de la tige dans un trou oblong 11 prévu à cet effet.On an external face is placed a locking device, composed of a bent rod or a ring 8 with compressed internal spring 9 placed in a cylindrical support 10 allowing the closure of the assembly by the passage of the rod in an oblong hole 11 meant for that purpose.

Les deux colliers sont rassemblés par l'intermédiaire d'un boulon 12 placé dans un trou 13 réalisé à la base du collier en U 1 qui comprend un épaulement 14 qui évite l'écrasement du tube sur la tête du boulon de fixation du collier.The two collars are assembled by means of a bolt 12 placed in a hole 13 made at the base of the U-shaped collar 1 which includes a shoulder 14 which prevents the tube from being crushed on the head of the collar fixing bolt.

Le dispositif objet de l'invention peut entre utilisé dans le domaine de la construction, dans les chantiers, plus particulièrement pour les échafaudages destinés à soutenir des passerelles, plate-formes ou tout autre élément de construction. I1 peut être aussi utilisé dans le domaine de la rénovation, peinture etc...  The object of the invention device can be used in the field of construction, in construction sites, more particularly for scaffolding intended to support walkways, platforms or any other building element. It can also be used in the field of renovation, painting, etc.

Claims (4)

REVENDICATIONS 1) Dispositif permettant de maintenir un tube d'échafaudage dans un collier muni d'une clavette ; caractérisé par un collier de forme épaulée. 1) Device for holding a scaffolding tube in a collar fitted with a key; characterized by a shoulder-shaped collar. qui comprend un système de verrouillage permettant la fermeture du dispositif par l'internédiaire d'un trou oblong réalise sur la clavette.which includes a locking system allowing the closure of the device by means of an oblong hole made on the key. 2) Dispositif selon la revendication I caractérisé par le rosit que le collier 1 est en forme de U incurvé et presente un épaulement d'appui du tube i I  2) Device according to claim I characterized by the rosit that the collar 1 is in the shape of a curved U and has a support shoulder of the tube i I 3) Dispositif selon la revendication i caractérisé par le lait que le collier I est muni sur une face externe d'un système de verrouillage bloquant. 3) Device according to claim i characterized by the milk that the collar I is provided on an external face with a blocking locking system. q) Dispositif selon la revendication 1 caractérisé par le fait que la clavette 4 comporte un trou oblong 11 par l'intermédiaire duquel s'effectue le verrouillage du systeme. q) Device according to claim 1 characterized in that the key 4 has an oblong hole 11 through which the system is locked. 5) Dispositif selon la revendication 3 caractérise par le fait que le système de verrouillage comprend une tige coudée ou avec anneau 8 avec ressort interne comprimé 9 placés dans un support cylindrique 10 et permettant un blocage du dispositif.  5) Device according to claim 3 characterized in that the locking system comprises a bent rod or with ring 8 with compressed internal spring 9 placed in a cylindrical support 10 and allowing a blocking of the device.
FR8903265A 1989-03-03 1989-03-03 TUBULAR SCAFFOLDING COLLAR WITH NON-RETURN KEY LOCK Expired - Lifetime FR2643950B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8903265A FR2643950B1 (en) 1989-03-03 1989-03-03 TUBULAR SCAFFOLDING COLLAR WITH NON-RETURN KEY LOCK

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8903265A FR2643950B1 (en) 1989-03-03 1989-03-03 TUBULAR SCAFFOLDING COLLAR WITH NON-RETURN KEY LOCK

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FR2643950A1 true FR2643950A1 (en) 1990-09-07
FR2643950B1 FR2643950B1 (en) 1991-05-17

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530114A1 (en) * 1991-08-30 1993-03-03 Potain Dismountable assembly device for metallic framework elements
CN103182732A (en) * 2013-03-15 2013-07-03 许金锔 Concrete formwork locking and fastening device
CN103410304A (en) * 2013-05-23 2013-11-27 浙江中交科技有限公司 Novel scaffold system
CN103422665A (en) * 2013-01-25 2013-12-04 成都嘉泽正达科技有限公司 Scaffold

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549543A1 (en) * 1983-07-18 1985-01-25 Bertoni Daniel A key with two nonparallel faces equipped with a locking means

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549543A1 (en) * 1983-07-18 1985-01-25 Bertoni Daniel A key with two nonparallel faces equipped with a locking means

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530114A1 (en) * 1991-08-30 1993-03-03 Potain Dismountable assembly device for metallic framework elements
FR2680813A1 (en) * 1991-08-30 1993-03-05 Potain Sa DISMANTLING ASSEMBLY DEVICE FOR METAL FRAME ELEMENTS.
CN103422665A (en) * 2013-01-25 2013-12-04 成都嘉泽正达科技有限公司 Scaffold
CN103182732A (en) * 2013-03-15 2013-07-03 许金锔 Concrete formwork locking and fastening device
WO2014139228A1 (en) * 2013-03-15 2014-09-18 Xu Jinju Concrete form locking and fastening device
CN103410304A (en) * 2013-05-23 2013-11-27 浙江中交科技有限公司 Novel scaffold system

Also Published As

Publication number Publication date
FR2643950B1 (en) 1991-05-17

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