Spring-biased tensioning device for a band saw blade

Details Spring-biased tensioning device for a band saw blade Spring-biased tensioning device for a band saw blade

1984-09-04

1986-03-18

Meister, James M.

Cutting

By endless band or chain knife

With means to guard the tension

83700, B23D 5506, B23D 5510

Patent

active

045760772

ABSTRACT:
A blade tensioning mechanism for a band saw is provided with a block slidably mounted on the saw frame and carrying a movable, non-driven, (i.e., idler) band saw blade wheel. A link is threaded to the block and extends through a housing having three coaxially aligned bores, one of which is internally threaded. A handle is secured to one end of the link adjacent the housing. A thrust bearing and externally threaded collar are disposed on the link in the housing with the thrust bearing located between the collar and the link handle. The collar has a slotted keyway for receiving a pin projecting radially from the link. A compression spring is disposed in the housing with one end against the collar and the other end against a retainer member threadingly engaged with the housing. The saw blade is tensioned to a predetermined amount by turning the handle to move the block along the link relative to the frame.

REFERENCES:
patent: 3889567 (1975-06-01), Sato et al.

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