Abstract

A hold down mechanism for a bandsaw including an upstream wheel positioned upstream of the saw blade and a downstream wheel positioned downstream of the saw blade, each wheel being rotationally connected to a bogie which is in turn supported on a swing arm. The proximity of the upstream and downstream wheels to the saw blade as well as the degree of pivoting motion permitted by the bogie enable a hold down wheel to press the ends if sequential workpieces against a base as the ends pass the saw blade to assure a uniform thickness of the cut workpiece. An angled guide surface is provide upstream from the forward wheel to assist the forward wheel in elevating when a trailing workpiece is significantly thicker than the workpiece preceding.

IPC Classes  ?

• B27B 25/02 - Feeding devices for timber in saw mills or sawing machinesFeeding devices for trees with feed and pressure rollers
• B27B 25/04 - Feeding devices for timber in saw mills or sawing machinesFeeding devices for trees with feed chains or belts
• B27B 25/06 - Resilient feeding or pressing accessories, e.g. pads, springs
• B23D 55/04 - Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of devices for feeding or clamping work