SU41167A1 - Circular saw guard - Google Patents

Description

In the factory technique there is a very diverse and large number of protective devices for circular saws, but none of them are suitable for use on sleeper machines, as a result of which, until now, circular saws of sleeper machines have no fencing appropriate to their purpose. This deficiency causes many accidents on the shpaloreznyh machines.

For circular saws, protective devices are generally used, which consist of a cap moved up and down with a cable. In accordance with the invention, in a similar safety device for a circular saw, the end of the cable is connected to a lever connected by a pair with a second loaded lever. Both of these levers are designed to influence the objects supplied for cutting, with the aim of automatically raising the hood at the time of sawing and lowering at the end.

In FIG. 1 is a front view of the proposed safety device; and FIG. 2 - view from the front.

The circular saw is closed by a self-releasing cap /, the rod 2 of which is placed loosely in the guide sleeve 5 mounted on the brackets 8. To the rod 2 of the hood / the cable 5 is attached, thrown at the top through the blocks 4; the other end of the cable 5 is attached to the lever 6, mounted on a roller, provided with a contact bar and connected by means of a pairing 7 with another lever 5, which also has a contact bar.

When the saw feeds the lever & rises under the object being cut and takes the position indicated by a dotted line in the drawing, and the pair 7 goes into the position indicated by the dotted line, this other lever 6 deflects it, as a result of which the cable pulls and raises the safety cap 2.

When the material leaves the saw and the rear lever 6, the cap 7, due to its gravity, lowers and closes the saw. This action occurs when the material is fed back to the car.

To smoothly raise and lower the hood / side of the trolley that supplies material to the saw, the square or bar with the ends bent up at an angle of 30-40 ° is fixed along the length, which will serve for smoothly pressing the arms 5, & To reduce friction, levers 5, 6 can be provided with rollers.

The subject matter of the invention.

Safety device for circular saws with the use of a cap moved up and down with a cable, characterized in that the end of the cable 5 is connected with the lever b connected by a pair of 7 with the second loaded lever 6, which levers are designed to act on them for cutting objects in order to automatically raise the cap 7 during the sawing and lowering period at the end of it.

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Srig. one

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