ASSEMBLY COMPRISING A FIXED SUPPORT, PULLEYS, A BELT AND A BELT TENSIONER

摘要

An assembly comprising: a fixed support such as an engine block, a plurality of pulleys mounted rotatably on the support a belt mounted on said pulleys a tensioner comprising: a plate a rotary element mounted on the plate via a rotating shaft fixed relative to said plate, the tensioner being capable of turning relative to the support, in a predefined direction of rotation, between an idle position in which the rotary element is separated from the belt and an operating position in which the rotary element is in contact with the belt, it being specified that, in the operating position, the belt exerts a force on the rotary element, the direction of said force tending to rotate the tensioner in said same predefined direction of rotation; at least one stop for preventing the tensioner from rotating in the predefined direction of rotation beyond the operating position of same, the latter thus being defined by the stop; wherein in order to rotate the tensioner relative to the support between the idle position and the operating position of the tensioner, the assembly comprises: at least one closed port arranged on the plate of the tensioner or on the support at least one means for engaging with the or each closed port, said engaging means being fixed relative to the support when the closed port is located on the plate or fixed relative to the plate when the closed port is located on the support.

主权项

1. An assembly including:
a stationary support (10); a plurality of pulleys rotatably mounted on the support; a belt mounted on said pulleys; a tensioner, including:
a plate,a rotating element mounted on the plate about a rotation axis stationary relative to said plate, the tensioner being able to rotate relative to the support, in a predefined rotation direction, between an idle position in which the rotating element is moved away from the belt and an operating position in which the rotating element is in contact with the belt, wherein in the operating position, the belt exerts a force on the rotating element, the direction of that force tending to cause the tensioner to rotate in that same predefined rotation direction; means for preventing the tensioner from rotating in the predefined rotation direction past its operating position; wherein in order to rotate the tensioner relative to the support between the idle position and the operating position of the tensioner, the assembly comprises: at least one closed aperture positioned on the plate of the tensioner or on the support; at least one means for cooperating with the or each closed aperture, said cooperating means being stationary relative to the support when the closed aperture is situated on the plate or stationary relative to the plate when the closed aperture is situated on the support.