Bolted connection for connecting two profiles

A - Human Necessities – 47 – B

Patent

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Details

A47B 77/04 (2006.01) E06B 3/984 (2006.01) F16B 12/14 (2006.01)

Patent

CA 2206230

Known bolted connections for the internal connection of two profiles have a fastening rod which is intended for insertion into the profiles and has two threaded parts each projecting into a connecting hole of the profiles. Connection is effected by using two fastening nuts which are intended to be fitted onto the two threaded parts and can be tightened against the connecting holes. This type of clamping has a substantial disadvantage. Thus, screwing of the two fastening nuts is made more difficult by virtue of the fact that, during tightening, one nut must be held with a first wrench while the other nut can be tightened with a second wrench. The bolted connection according to the invention does not have this disadvantage. This in fact permits the use of only one nut. To prevent the fastening rod from rotating when the nut is turned or slackened, the fastening rod is provided in an end section with at least one constriction so that a clamping jaw fitted onto this constriction in an axially nondisplaceable manner prevents rotation of the fastening rod.

Les raccordements boulonnés connus pour le raccordement interne de deux profilés ont une tige de fixation prévue pour l'insertion dans les profilés et qui a deux parties filetées chacune en saillie dans un trou de raccordement des profilés. Le raccordement est effectué en utilisant deux écrous de fixation destinés à être vissés sur les deux parties filetées et qui peuvent être serrés contre les trous de raccordement. Ce mode de fixation présente un inconvénient de taille. Ainsi, le vissage des deux écrous de fixation est rendu plus difficile du fait que, durant le serrage, un écrou doit être tenu par une première clé pendant le serrage de l'autre écrou avec une deuxième clé. Le raccordement boulonné de cette invention n'a pas cet inconvénient. Il permet en fait l'utilisation d'un seul écrou. Pour empêcher la tige de fixation de tourner pendant lorsque l'écrou est serré ou desserré, la tige de fixation est munie à une extrémité d'une section ayant au moins une constriction de sorte qu'une mâchoire de blocage placée sur cette constriction d'une manière empêchant le déplacement axial empêche la rotation de la tige de fixation.

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