Conveyor guiderail

An apparatus for guiding products along a conveyor in a conveying direction. The apparatus includes a first guiderail for at least partially forming a conveying path for articles on the conveyor. A guiderail adjuster includes a flexible or collapsible support, which make take the form of a linkage, and which provides support for the first guiderail along the conveyor. The flexible or collapsible support is adapted for being extended and retracted along a support rail extending in the conveying direction to selectively position the first guiderail relative to the conveyor, and thereby alter (increase or decrease) the width of the conveying path. Related methods are also disclosed.