FR2749339A1 - Rapid assembly mechanism for scaffolding poles - Google Patents

Rapid assembly mechanism for scaffolding poles Download PDF

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Publication number
FR2749339A1
FR2749339A1 FR9606783A FR9606783A FR2749339A1 FR 2749339 A1 FR2749339 A1 FR 2749339A1 FR 9606783 A FR9606783 A FR 9606783A FR 9606783 A FR9606783 A FR 9606783A FR 2749339 A1 FR2749339 A1 FR 2749339A1
Authority
FR
France
Prior art keywords
cam
axis
assembled
shape
ensure
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
Application number
FR9606783A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GANDOIS JEAN MARIE
Original Assignee
GANDOIS JEAN MARIE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GANDOIS JEAN MARIE filed Critical GANDOIS JEAN MARIE
Priority to FR9606783A priority Critical patent/FR2749339A1/en
Publication of FR2749339A1 publication Critical patent/FR2749339A1/en
Pending 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
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/303—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect
    • E04G7/304—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are only fixed at one of the bars or members to connect with tying means for connecting the bars or members

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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)
  • Clamps And Clips (AREA)

Abstract

The assembly mechanism is a U-shaped end piece (1) into which the pole (2) which is to be assembled is placed. An axis (3) runs between the two arms of the U. On the axis is a cam (4) which is in the form of an off centre cylinder and a handle. The rotation of 90 degrees of the handle exerts enough pressure through the cam to ensure that the two poles are held tightly together. The cam may be an off centre cylinder with a slightly flattened section. The shape of the surface of the cam which is contact with the pole may be more complex to ensure the poles are held more tightly together.

Description

La présente invention concerne un dispositifpermettant l'assemblage rapide des tubes d'échaffaudage par serrage d'une came solidaire d'une poignée.The present invention relates to a device allowing rapid assembly of scaffolding tubes by tightening a cam secured to a handle.

Les tubes d'échaffaudage sont habituellement assemblés par un système de blocage avec des coins métalliques enfoncés au maillet. Le montage et le démontage sont assez longs, et le démontage nécessite le déblocage des coins, ce qui est parfois difficile.The scaffolding tubes are usually assembled by a locking system with metal wedges driven into the mallet. The assembly and disassembly are quite long, and disassembly requires unlocking the corners, which is sometimes difficult.

Le dispositif selon l'invention permet de remédier à ces inconvénients en facilitant la manipulation des éléments d'assemblage situés en bout de tube. The device according to the invention overcomes these drawbacks by facilitating the handling of the assembly elements located at the end of the tube.

Le dispositif est composé d'un embout en forme de U accueillant le tube à assembler. Les deux faces du U sont traversées par un axe. Sur cet axe se trouve une came et une poignée permettant de la manoeuvrer. The device is made up of a U-shaped end fitting accommodating the tube to be assembled. The two faces of the U are crossed by an axis. On this axis is a cam and a handle allowing to maneuver it.

La distance entre l'axe et le fond du U sur lequel repose le tube à assembler, est calculée de sorte que l'on puisse serrer l'assemblage avec un angle de manoeuvre de la poignée de l'ordre de 90" environ (par exemple, passage de la position verticale à une position horizontale de la poignée).The distance between the axis and the bottom of the U on which the tube to be assembled rests, is calculated so that the assembly can be tightened with an operating angle of the handle of around 90 "(for example, change from vertical to horizontal position of the handle).

La longueur de la poignée est calculée de sorte que le couple fourni par la force d'un homme soit suffisant.The length of the handle is calculated so that the torque provided by the force of a man is sufficient.

La forme de la came peut être simple (cylindre excentré), avec léger méplat, et la forme de la surface en contact avec le tube peut être linéaire (cylindre) ou plus complexe pour assurer un meilleur serrage.The shape of the cam can be simple (eccentric cylinder), with a slight flat, and the shape of the surface in contact with the tube can be linear (cylinder) or more complex to ensure better tightening.

Les dessins annexés illustrent l'invention:
La figure I présente le dispositif vu de dessus.The accompanying drawings illustrate the invention:
Figure I shows the device seen from above.

La figure 2 présente le dispositif vu de profil.Figure 2 shows the device seen in profile.

La figure 3 présente des formes possibles de cames. Figure 3 shows possible forms of cams.

Claims (3)

REVENDICATIONS 1) Dispositifpermettant l'assemblage et le désassemblage rapide des tubes d'échaffaudage caractérisé en ce qu'il comporte un embout en forme de U (1) pouvant accueillir le tube à assembler (2) et traversé d'un axe (3) solidaire d'une came (4) de forme cylindrique excentrée et d'une poignée de manoeuvre (5) dont la rotation d'environ 90" exerce, par l'intermédiaire de la came, une pression suffisante pour assurer le serrage des deux tubes. 1) Device allowing rapid assembly and disassembly of scaffolding tubes, characterized in that it comprises a U-shaped end piece (1) which can accommodate the tube to be assembled (2) and crossed by an integral axis (3) a cam (4) of eccentric cylindrical shape and an operating handle (5) whose rotation of approximately 90 "exerts, via the cam, sufficient pressure to ensure the tightening of the two tubes. 2) Dispositif selon la revendication (1) caractérisé en ce que la forme de la came (4) est un cylindre excentré sur l'axe (3) possédant un léger méplat. 2) Device according to claim (1) characterized in that the shape of the cam (4) is an eccentric cylinder on the axis (3) having a slight flat. 3) Dispositif selon la revendication 1 ou la revendication 2 caractérisé en ce que la forme de la surface de la came en contact avec le tube à assembler (2) est plus complexe pour assurer un meilleur serrage.  3) Device according to claim 1 or claim 2 characterized in that the shape of the surface of the cam in contact with the tube to be assembled (2) is more complex to ensure better tightening.
FR9606783A 1996-05-30 1996-05-30 Rapid assembly mechanism for scaffolding poles Pending FR2749339A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9606783A FR2749339A1 (en) 1996-05-30 1996-05-30 Rapid assembly mechanism for scaffolding poles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9606783A FR2749339A1 (en) 1996-05-30 1996-05-30 Rapid assembly mechanism for scaffolding poles

Publications (1)

Publication Number Publication Date
FR2749339A1 true FR2749339A1 (en) 1997-12-05

Family

ID=9492634

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9606783A Pending FR2749339A1 (en) 1996-05-30 1996-05-30 Rapid assembly mechanism for scaffolding poles

Country Status (1)

Country Link
FR (1) FR2749339A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864980A1 (en) * 2004-01-12 2005-07-15 Macc Cam for adjusting, blocking and unblocking post supports, has off-centered revolution part that stops on hollow shaft when in clamping position, and drive shaft that is lifted to disengage part for moving supports on beam

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR779452A (en) * 1933-09-08 1935-04-05 prop for construction and earthworks
FR1184829A (en) * 1957-10-18 1959-07-27 Geku Verschalungsgerate G M B Adjustable support for beams and similar elements
FR1288631A (en) * 1961-05-05 1962-03-24 Joining device for steel tube scaffolding
DE2000711A1 (en) * 1970-01-08 1971-07-15 Bernhard Glatz Eccentric lock
FR2305627A1 (en) * 1975-03-27 1976-10-22 Entrepose Support framework assembly device - has hook shaped portion with opening partially closed by sprung locking cam

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR779452A (en) * 1933-09-08 1935-04-05 prop for construction and earthworks
FR1184829A (en) * 1957-10-18 1959-07-27 Geku Verschalungsgerate G M B Adjustable support for beams and similar elements
FR1288631A (en) * 1961-05-05 1962-03-24 Joining device for steel tube scaffolding
DE2000711A1 (en) * 1970-01-08 1971-07-15 Bernhard Glatz Eccentric lock
FR2305627A1 (en) * 1975-03-27 1976-10-22 Entrepose Support framework assembly device - has hook shaped portion with opening partially closed by sprung locking cam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864980A1 (en) * 2004-01-12 2005-07-15 Macc Cam for adjusting, blocking and unblocking post supports, has off-centered revolution part that stops on hollow shaft when in clamping position, and drive shaft that is lifted to disengage part for moving supports on beam
EP1555362A1 (en) * 2004-01-12 2005-07-20 Macc Holding device for railing posts on transverse arm of a wall scaffold or a ladder bracket

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