A clamping/shaping device

B - Operations – Transporting – 25 – B

Patent

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Details

B25B 5/10 (2006.01) B25B 1/10 (2006.01) B25B 3/00 (2006.01)

Patent

CA 2281886

An adjustable clamping/shaping device (10) is provided for clamping/shaping work pieces of various dimensions and may be applied for straightening beams, joist, bearers, etc., squaring house frames, positioning form work, or maintaining work pieces in position. The device includes a first clamping member (14), a second clamping member (16) and an elongate threaded member (12) on which the first and second members (14, 16) are located and arranged for continuous adjustment of relative positions therealong. The second member (16) is fixedly or adjustably located on the elongate member (12). The first member (14) has cooperating thread engagement means (40) movable between a released potion at which the first member (14) is slidingly positionable along the elongate member (12) and an engaged position at which the second member (16) cannot slide along the elongate member (12) but is positionable by rotating the engagement means (40) in meshing engagement with the elongate member (12). The device also includes biasing means for biaising the engagement means to said engaged position and maintaining means for maintaining the engagement means at said engaged position. The maintaining means can be in the form of a lock nut member or a cam member. A lever member can be provided for moving the engagement means.

La présente invention se rapporte à un dispositif ajustable (10) de fixation/formage destiné à fixer/former des pièces à usiner de différentes dimensions. On peut utiliser ce dispositif pour dresser notamment les poutres, les poutrelles et les traverses, pour équarrisser les charpentes de maisons, placer la pièce formée, ou maintenir en place les pièces à usiner. Le dispositif comprend un premier élément de fixation (14), un second élément de fixation (16) ainsi qu'un élément allongé (12) fileté sur lequel les premier et second éléments (14, 16) sont placés et montés de façon à permettre tout le long un ajustement continu des positions relatives. Le second élément (16) est placé sur l'élément allongé (12) de manière fixe ou ajustable. Le premier élément (14) est pourvu d'un dispositif d'accouplement (40) fileté coopérant mobile se déplaçant entre une position de repos pendant laquelle le premier élément (14) peut être placé de manière coulissante le long de l'élément allongé (12), et une position d'accouplement durant laquelle le second élément (16) ne peut pas glisser le long de l'élément allongé (12), mais peut par contre être mis en contact avec l'élément allongé (12) par la rotation du dispositif d'accouplement (40). Ce dispositif comprend également un dispositif de sollicitation destiné à pousser le dispositif d'accouplement jusqu'à la position d'accouplement précitée et à maintenir le dispositif d'accouplement en position d'accouplement. Le dispositif de maintien peut être un écrou autofreiné ou un écrou de came. Un élément levier peut être fourni pour déplacer le dispositif d'accouplement.

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