DE8120876U1 - Automatic welding goggles - Google Patents

Description

Automatic welding protective goggles for arc welding machines

The purpose of the present invention is to provide a universally applicable To describe automatically controlled welding goggles which can be used for all arc welding processes is.

In the case of inert gas welding machines, the anti-glare glass (blue glass) is automatically controlled depending on whether the Welding process, with conventional welding transformers automatic control is also possible.

The glasses can also be used as normal folding glasses without automatic control. (E.g. "for welding transformers for Hand-held electrode welding and autogenous welding).

So far, only protective shields with anti-glare protection are on the market -> r. Glasses that have to be held by hand during the welding process or protective visors that are folded down by hand before the welding process. The most important advantage of the present invention can be seen in the fact that the eye protection adjusts itself automatically and thus one hand remains free to hold a workpiece or component. In addition, the shields on the market relatively gro3, vas are at Scbweißarbeiten especially in Kraftfahrzeugbandver ¹ -; (Body shop, straightening work) found to be very annoying. The present welding protective goggles form a tight-fitting protective device with a sufficiently temperature-resistant material (e.g. leather), which offers the user reliable protection against burns or radiation in confined spaces.

The task was to design welding goggles for all arc welding work that would automatically be used for at the right time protects the user's eyes from being blinded

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Georg Zauner, Kaiserstraße 18, 8220 Traunstein-Traunstorf / 2 Automatic welding goggles for arc welding devices

and also offers the possibility of making safe and efficient work possible in confined spaces.

The automatic welding goggles consist of a two-part, temperature-resistant and sufficiently mechanically resilient frame (3) and (29) in Pig. 5. ^ pi ¹ sr head bending part (3) is held by an elastic band (31) ^s ™ head of the user. The front foldable part (29) is securely held in the closed position as well as in the folded up position by a spiral spring (30) sc-rohl (pivot point (32)).

The front part (29) contains two anti-glare glasses (7) which, however, do not completely cover the viewing opening and allow an opening at the top for normal vision without anti-glare glasses. With the help of two additional anti-glare glasses (6), the viewing slit is closed by an electromagnetic device (12) as soon as the electrical coil (M \.) * Is supplied with electrical energy via the plug (9) and the spiral cable (10) '. Two soft iron pistons (20) move towards each other and operate the anti-glare glasses •. (6) over a spring wire (5). As soon as the electrical voltage on the coil (1Ij.) Is interrupted at the end of the welding process, the springs (25) pull the soft iron pistons (.20) back into their starting position.

By two valves consisting of ball seat (21), ball (16), spring (17) in Fig. 3, the flow of air into the space between the soft iron piston (20) is made difficult and thus ^, ^, ^ jsine ■ delayed rte JteWzg, u £ g ", der Weichen.eisenkolbeii ,,. ( _Y 20j" .jJ starting position reached. This effect largely prevents the user from being dazzled by the glowing weld metal.

Through the interaction of the two valves as shown in Fig. 3, with every movement the "^ eTifeäetieisenkolben (20) a steady stream of air is achieved, which is blown onto the anti-glare glasses to prevent the glasses from fogging up.

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Georg Zauner, Kaiserstraße 18, 8220 Traunstein-Traunstorf / 3 Automatic welding goggles for arc welding machines

Fresh air is sucked in at the upper valve and via the blown out lower valve.

The two soft iron pistons slide in a non-ferromegnetic lens Tube (18) over which the winding carrier (13) is pushed with the two valves.

The automatic welding goggles are fitted with a plug-in adapter (6) the one between the plug-in coupling (7) and the plug (5) of the earth cable (1 |) sn the welding device (1) over the flexible line (3) which leads to the burner (23) with electrical Energy supplied. The plus potential is from the burner (23) connected directly to the socket (22) for the two-pin plug (9).

Each series welding device can thus be easily expanded, to be able to use the automatic welding goggles. In the case of new designs of welding devices, this can be taken into account by integrating the socket (22) and the ground line (3) will.

A closing advance of the movable anti-glare glasses (6) results automatically, since with every welding interruption with inert gas welding machines the welding wire retracts a little— burns and an arc delay occurs when the device is switched on again.

Claims (7)

• r ■: *. ί ί! ί ·. Georg Zauner, Kaiserstraße 18, 8220 Traunstein-Traunstorf Automatic welding safety goggles for arc welding devices Protection against claims 1.) Automatic welding goggles consisting of a goggle frame with a surrounding anti-glare frame (3 »29) made of non-flammable plastic or metal, which has two rectangular openings on the front with anti-glare glasses (7) that cover approx. 80% of the opening. The upper gap is covered by a movable anti-glare glass (7 a) rotatably mounted on one side. The movable anti-glare glass has a lever arm (6) which is connected to a soft iron piston (20) by means of a spring wire (5). Two of these soft iron pistons (20) move in opposite directions in a non-ferromagnetic tube (18) which is enclosed by a winding support (13) which holds an electrical coil (II4.). The soft iron pistons (20) are held in the end position by two springs (25), which have a common pivot point with the anti-glare glasses (7a), so that the soft iron pistons (20) are closed by a magnetic field generated by the coil (1Ij.) will. The connection line (10) with the plug (9) is led out on the side of the glasses frame. The non-ferromagnetic tube (18) has two bores (3lj.) Which are part of an exhaust and supply air duct, which consists of the pipe section (21), the spring (17), the ball (16) and the ball seat (21 ) consists. The connecting piece (35) from the magnet coil unit leads to the outside through the spectacle frame via a bore (2) over which there is a dust cover. From the exhaust valve connector (2J4-) a plastic hose (8) or a channel integrated in the glasses frame branches off to both sides to the anti-glare glasses (7), the hose or channel being narrowed at the end like a nozzle. Georg Zauner, Kaiserstraße 18, 8220 Traunstein - Traunstorf ■ * ■ "> Automatic welding goggles for arc welding machines 2.) Automatic welding goggles according to claim 1, characterized in that the magnetic coil unit is installed rotated by 180 compared to claim 1, so that the connecting piece (35) is below. 3.) Automatic welding goggles according to claim 1, characterized in that the two visual openings can be closed by a centrally mounted slide. 4.) Automatic welding goggles according to claim 1 characterized in that the two valves (33) are made of rubber (Fig. 4) 5.) Automatic welding protection device according to claim 1 thereby gerkennzeich.net that the movable anti-glare glasses (7a) by a V-shaped or overlapped seat on the anti-glare glasses (7) rest (Fig. 1b) 6.) Automatic welding goggles according to claim 1, characterized in that in front of the anti-glare glasses a normal protective glass is attached. 7.) Automatic welding goggles according to claim 1 characterized in that a face protection (11) leather is attached.