Continuous riveter and continuous riveting method of blind...

B - Operations – Transporting – 21 – J

Patent

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Details

B21J 15/18 (2006.01) B21J 15/06 (2006.01) B21J 15/22 (2006.01) B21J 15/34 (2006.01) B21J 15/48 (2006.01)

Patent

CA 2450635

Disclosed is a continuous riveter capable of firing blind rivets in succession to rivet sheet metal or the like. A seal member (71) located on the oil chamber (6) side and a seal member (72) located on the air chamber, (4) side are provided in an oil cylinder (1) where an oil piston (2) separates the oil chamber (6) of the oil cylinder (1) from the air chamber (4) of an air cylinder (3), and a portion of the oil cylinder (1) which is between seal members (71 and 72) is provided with an air vent (19e): and a seal member (74, 76) located on the oil chamber (16) side and a seal member (73, 77) located on the air chamber (14,15) side are provided in a jaw case piston (20) and in a nose piston (28), the seal members (74, 76 and 73, 77) sealing an area between the oil chamber (16) and the air chamber (14, 15), and the pistons (20 and 28) between the seal members (74, 76 and 73, 77) are each provided with an air vent (75, 78).

L'invention concerne une riveteuse en continu qui permet de poser en continu des rivets aveugles afin de calfeutrer des couches de feuilles métalliques ou analogues. Un élément de scellement (71) positionné du côté de la chambre à huile (6) et un élément de scellement (72) positionné du côté de la chambre à air (4) sont disposés dans un cylindre à huile (1) muni d'un piston à huile (2) définissant une chambre à huile (6) pour le cylindre à huile (1) et une chambre à air (4) pour un cylindre à air (3). Un trou de passage d'air (19) est pratiqué dans le cylindre à huile (1) entre les deux éléments de scellement (71, 72). De plus, le piston du carter à mâchoires (20) et le piston frontal (28) sont pourvus d'éléments de scellement (74, 76) positionnés du côté de la chambre à huile (16) et d'éléments de scellement (73, 77) positionnés du côté de la chambre à air (14, 15) afin de sceller l'espace compris entre la chambre à huile (16) et la chambre à air (14, 15). Les pistons (20, 28) situés entre les deux éléments de scellement (74, 76) et (73, 77) sont pourvus de trous de passage d'air (75, 78), respectivement.

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