WO2006010230A1

WO2006010230A1 - Electromagnetic based opening and closing of colored glass on a welding mask by remote-control

Info

Publication number: WO2006010230A1
Application number: PCT/BA2005/000003
Authority: WO
Inventors: Branko Milicevic; Luka Rakic; Ivan Milicevic
Original assignee: Branko Milicevic; Luka Rakic; Ivan Milicevic
Priority date: 2004-07-30
Filing date: 2005-07-28
Publication date: 2006-02-02

Abstract

Device for opening and closing a colored glass on a welding mask that has main electromagnet (4) which, after pressing knob on the remote control (12), what closes electrical circuit from battery, thus giving power to the electromagnet (4) through conductor, supported by piston-like lifter, (7) lifts colored glass (3) pushing it to the upper position along guide-channel of a frame (6) that is fixed on a body of a mask (1). In that moment pointed part (9) of a side electromagnet, pushed by adequate spring, goes in the groove of a lifter (7) of a colored glass and blocks colored glass to return or to lower (3). Opening a colored glass (3) starts with pressing the other knob on the remote control what switches-on side electromagnet (5) which pulls back pointed part (9), after that lifter (7), released under impact of a spring (8), lowers colored glass.

Description

ELECTROMAGNETIC BASED OPENING AND CLOSING OF COLORED

GLASS ON A WELDING MASK BY REMOTE-CONTROL Technical Field

This invention relates to a welding mask equipped with a device with electromagnetic based system for opening and closing a colored glass, and according to the International Classifications of Patents it is classified as A61F 9/06. as work equipment for protection during welding operation.

Background Art

Major problems that welding workers have faced with for many years, while using classical welding masks, have been: engagement of one hand which holds mask; impossibility to fully and momentarily protect from flash at the beginning of welding operation; impossibility to precisely begin welding operation; impossibility to hold part being welded by own hand and simultaneously do welding and be protected.

Existing welding masks, equipped with laser system for eye protection, are very sensible on hits, their life time is short, and even more they are too expensive and as such not available to the most of welding workers. Suggested solutions by this time are non-efficient, outdated or too expensive and sensible. Traditional types of welding masks do not fully protect eyes and face of welding workers, which results in different degree of burns of skin, health problems, pains and other problems with eyes, and all of that significantly reduce work capabilities of professional and amateur welding workers, by time reduce productiveness, and results in early work invalidity. Also, using mask inevitably requires engagement of one hand, and that reduces hands capability for 50% and reduces preciseness of beginning of welding operation, which often leads to the necessary repetitions of operations or corrections, that results in different damaging or unwanted consequences.

So-called "Laser" or state-of-the-art welding masks are too sensible on hits, and because of that they reduce work relaxedness and concentration of welding workers. Laser equipped welding masks are too expensive and as such they are permanently not available to the 90% of professional and amateur welding workers.

Laser equipped masks are very complex to produce, what results in a high price and short life of their functions. In the known state of techniques there are no solutions such as closing and opening colored glass on a welding mask by electromagnets.

Disclosure of Invention

Primary objective of the invention is full and efficient protection of welding worker's face and eyes and simultaneously enable both hands operable in each phase of welding operation, which makes welding worker 100% capable for work and 100% efficient in relation to the quality and productivity of welding operation. Secondary objective is to enable on a massive scale serial production of welding masks of high technical and functional characteristics. Further objective of the invention is to considerably lengthen life and usage of welding mask, and significantly make welding operation easier. Additional objective of the invention is new welding mask with this new technical solution of opening and closing colored glass, which is acceptable and available to each welding worker considering its market price.

This device with electromagnetic based opening and closing a colored glass on a welding mask, according to this invention includes; frame, in a crossing section view "F" profile, guide for colored glass with inside channel and upper margin, and also includes electromagnetic drive in which it is installed piston-like holder or lifter of colored glass, and external protecting and transparent thin wall, and all fixed on external front side of housing or on a body of a mask in a cut-out for observation. Closing colored glass by electromagnetic based drive is made possible due to the direct current from battery power-supply which is placed on internal side of welding mask, and turning on-off of power supply is done by hand remote-control placed on a pincers for welding within reach of a thumb of a hand which holds pincers. Side electromagnetic safety of the main piston-like holder of colored glass enables colored glass to stay in a closed position without using any electricity. By activating electromagnetic safety it releases colored glass holder to open initial position, which is enabled by an adequate return spring. Side electromagnetic holder and spring placed inside it enable device to function without using any electricity except when opening and closing colored glass. Brief Description of Invention

Figurel shows 3D look of mask with device in interaction of parts and assemblies of device.

Figure 2 shows 3D look of hand remote control Best Mode for Carrying Out the Invention Referring to the Figures 1 and 2, we can see that this invention includes colored glass (3), main electromagnetic drive (4), which comprises of solenoid coil and piston-like holder of colored glass (7). According to this invention, when electromagnet is switched-on piston-like holder/carrier of colored glass comes out and closes cut-out for observation on a welding mask bringing colored glass in a final upper position. In a piston-like holder of colored glass there is a small groove in which goes pointed part (9) of a side electromagnetic safety (5). Parallel to the piston-like holder (7) it is fixed cylindrical spring (8) of adequate strength, whose function is to push colored glass in a starting position and due to the gravity based lowering of a piston-like holder, opening a colored glass (3) is, by axial puffing, easier and faster. According to the invention, opening a colored glass is done by electromagnetic pullback of a pointed part (9) of a side safety (5). Electromagnetic assemblies and their components can be made of adequate different materials according to the known technical-technological procedures for production of those assemblies. As it is accomplished here, functioning of this device is made possible due to the frame of "F" profile (6) with inside channel guide for colored glass (3) and for external protecting and transparent thin wall, which is made of adequate material. According to this invention, remote control or switch, fixed on a pincers by annular band - Figure 2, switches on electromagnets (4 and 5) over two knobs (10) and thus enables supply of electromagnets with direct current from battery power supply (12). Device is fixed on housing or on a body of a welding mask (1), and mask can be put on a head with help of holders (2) of a welding mask, which are adjustable to the different size of heads. Industrial Applicability

Installation of this new device-invention enables practical, long-life, and useful functioning of device in the all types of welding operations, which can be economically produced and which includes very crucial improvements against classical welding masks.

Claims

PATENT CLAIMS

1. Electromagnetic based opening and closing a colored glass on a welding mask, which consists of electromagnet that closes and opens colored glass on a welding mask, and which works in a way that side electromagnetic safety blocks colored glass when it is in a closed position, and by pulling back pointed part of a side safety it enables opening a colored glass, characterized by, that the main electromagnetic device that closes colored glass, which is fixed under the cut-out for observation on a welding mask, is in the functional interrelation with a side electromagnetic safety, in a way that the main electromagnet closes colored glass and a pointed part of a side electromagnet, pushed by a spring, blocks it, and by switching on a side electromagnet it pulls back a pointed part of a side electromagnet and thus releases lifter of a colored glass which due to the gravity and pushed by a spring opens or lowers colored glass.

2. Electromagnetic based opening and closing colored glass according to the claim 1, characterized by, that the mentioned main electromagnet closes colored glass switched on by short press on a knob on the remote control.

3. Electromagnetic based closing and opening colored glass according to the claim 2, characterized by, that the mentioned pointed part pushed by a spring blocks colored glass when it is in a closed position.

4. Device for opening and closing colored glass according to the claim 3, characterized by, that the mentioned side electromagnet pulls back pointed part and thus enables opening a colored glass.

5. Electromagnetic based opening and closing colored glass according to the claim 4, characterized by, that the cylindrical spring which is fixed parallel to the lifter of a colored glass pushes back lifter of a colored glass - opens colored glass.

6. Electromagnetic based opening and closing colored glass according to the claim 5, characterized by, that by pressing the knobs on the remote control it switches on side electromagnet.