SU33667A1 - Motorized archery saw with manual control - Google Patents

Description

Usually bow saws are manually driven; The archery saws in practice, which are set in motion from mechanical energy, are for the most part stationary.

The present invention aims to apply a motorized hand drive for a bow saw used, for example, when felling and, in general, for all other sawing operations associated with frequent shifting of the workplace. In accordance with the invention, the saw blade is directly connected to a brush receiving movement from a mechanical drive (such as, for example, pneumatic, etc.) placed in a handle serving to keep the saw working during operation, with the horizontal part of the beam placed in a guide, located in the other handle.

The drawing shows a longitudinal section - the proposed .motor saws with manual control.

The blade / archery, fixed in the onion 2, is brought into reciprocating movement directly from the engine or via a suitable gear on the piston 4, articulated with the onion 2 by means of pin 5. The engine cylinder, which contains the pin 5, the oil seal b for it and the piston 4 , serves simultaneously as a handle 5, for which the worker is taken when working with a saw with his right hand.

At the end of the handle 3, the casing 9, 10, 11 is fastened to the flange 7 with a nut, inside which the bow 2 is placed. The housing part 13 surrounding the guide 12 located therein in order to place the horizontal part 2 of the bow 2 is made in the form of a second handle for which the worker is taken with his left hand during the cutting of the wood.

The subject matter of the invention.

A hand-operated motor beam saw, characterized in that the driving beam with the saw blade 5 is placed in the handle 3, and the very bow in the guide 12 located in the other handle 13.