ITPA20060027U1 - MASK FOR WELDING WITH DIMMING SYSTEM SERVO CONTROLLED IN RADIO FREQUENCY. - Google Patents

Description

Deaeririon of the utility model entitled:

Welding mask with radio frequency controlled servo darkening system

TEXT OF DESCRIPTION:

It is a fixed welding mask, consisting of a helmet and a protective part for the face in heat-resistant material, having an external transparent glass that is easy to replace and an internal tilting mechanism that houses an interchangeable darkening glass.

The internal mechanism is controlled by a frequency-coded receiving circuit, placed inside the helmet together with the rechargeable accumulators, which is triggered by a radio control; applicable externally or directly inserted in any welding terminal.

DETAIL:

Table 1 shows the parts that make up the structure of the mask. It is made up of a protective helmet A (fig.l) in heat-resistant material and a screen in heat-resistant material G (fig.l) but lighter than the previous one, fixed to the side edges of the helmet by means of pins and plastic nuts D (fig. 1 and fig. 3}, The glass holder frame F (fig. 1} houses an interchangeable transparent glass £ (fig. 1 and fig. 31 for eye protection. In the upper part of the glass holder frame there are the six LEDs with intense white light N are arranged (Tav 1 Fig.l}, for the illumination of the work area in dark conditions, which can be activated independently by means of the switch M (Table l fig. helmet front,

On the front of the helmet we also find the socket for recharging the accumulators B (fig.

1}, the ignition switch C (fig. 1} and the compartment H (fig. 1} which houses the button i (fig, there and the LED L (fig. L) for synchronizing the frequency with the remote control to use,

In table 1, the darkening mechanism A (fig. 2}, the compartment housing the accumulators and receiving circuit C (fig. 2}) and the adjustable strap for adapting the helmet B (fig.2) are clearly visible.

The actuation device A (tab, 2 fig. 2} and C (tab. 2 fig. 1}) is a radiofrequency transmitter with a trigger button P (tab, 2 fig.

2) which can be applied or inserted into the handle of the soldering terminal A (table 2 fig, 1) as well as inside soldering stations; which, with the appropriate modifications, are able to activate it automatically at the start of the welding process. Inside the transmitter, the letter c (table 2 fig. 2) represents the power supply battery.

In table 3 we find the description of the mechanical parts and the electronic components inserted inside the mask

In table 3 the schematized darkening mechanism is represented inside fig. 1 and is composed of a light plastic structure (A) where two metal axes of cylindrical section (B) are fixed parallel by means of the anchor points (L) on which the darkening glass door complex composed of a light plastic structure slides ( AND)

By keeping button F pressed (tab. 2 fig. 2} the receiver A (tab, 3 fig. 2) excites the double exchange relay Al (tab, 3 fig. 2) which polarizes motor G in a normal way (tab, 3 fig. l] t which by turning counterclockwise, by means of the worm screw N {tab, 3 fig. 1) and the toothed gear G (tab. 3 fig, l) f raises the supporting structure of the blackout glass from the toothed bracket F (table 3 fig 1) and superimposes it on the transparent glass. motor G (ta.v, 3, fig. 1) which by stopping avoids the energy consumption of the accumulators for the entire duration of the darkening phase, but leaving the entire glass holder assembly in the raised position. M (tab, 1 fig. There for the switching on of the high brightness LEDs B (tab, 3 fig. 6ì, again for the purpose of saving energy of the accumulators, the diverter I (tab, 3 fig. 1 ) will interrupt the voltage to the LEDs for the entire darkening phase. Releasing button P (tab, 2 fig.

2) the double exchange relay R1 (tab, 3 fig. 2) polarizes the motor G {tab. 3 fig, 1) which will bring the entire glass holder assembly back to its original position, The switch I (table 3 fig.; There will detect the limit stop of the downward movement and cut off the voltage to the motor, restoring the operating cycle.

The tinted glass D (tab, 3 fig. 1) is blocked in the recess by two metal blades C (tab.

3 fig. 1) and is easy to replace. The four rubber washers M1 / M2 / M3 / M4 (tab. 3 fig. X} are used to cushion the end-of-stroke impacts during operation. Switch C (tab. 3 fig. 2) is used to select the response time of the mechanism in the modes: instantaneous or delayed.

The rechargeable accumulators A {tav. 3 fig.3} at 12V, 2ha, inserted inside the helmet, are used to power the whole complex; the charging socket P {tav. 3 fig. 4) allows the batteries to be recharged with a common battery charger available on the market even when the power button S (tab.

3 fig. Yes it is in the off position.

PURPOSES THAT ARE INTENDED TO ACHIEVE:

This system brings three totally innovative advantages:

1. Unlike fully automated industrial masks, it has the advantage of canceling any false triggers due to other adjacent workstations, precisely because it is the operator himself who controls the mechanism according to his needs;

2. Due to the cheapness of the materials used and the ease of use, it can be widely used especially by small operators in the iron and steel sector as well as in the hobby sector;

3. If necessary, the operator can simultaneously operate the devices of several masks of any collaborators who are assisting him by coding several masks with the same trigger radio control.

And also:

.the total absence of external cables allows the greatest freedom of movement avoiding any hindrance.

. it is recharged by means of a common battery charger for rechargeable accumulators -. like the more expensive industrial automatic systems, the operator finds himself having the total availability of the other hand, which was usually used to place the mask on the face. It is significant to specify that this system allows the operator the TOTAL and CONSTANT protection of the head and face.

Claims (4)

CLAIMS 1 THE SEKVO-ASSISTED MECHANICAL DEVICE (tab, 3 fig, 1) IS COMPOSED OF LIGHTWEIGHT PARTS WITH A REDUCED NUMBER FOR GREATER FUNCTIONALITY. 2 REMOTE-CONTROLLED TRIGGER {pl. 2 fig. 2) WITH CO-DIFICATION OF FREQUENCY (ALSO USED BY RADIO-MANDI FOR AUTOMATIC GATES), ENSURES THE OPERATOR FREEDOM OF MOVEMENT, AVOID FALSE TRIGGER, GUARANTEES PRECISION OF INTERVENTION, IT CAN BE INSERTED DIRECTLY IN THE WELDING STATION, DIRECTLY TAKING THE VOLTAGE FOR OPERATION. 3 THE MASK HAS A HIGH AUTONOMY (ABOUT 30 HOURS AT NORMAL USE) THANKS TO THE STRUCTURE OF THE MECHANISM AND TO THE 2 ha RECHARGE-LI ACCUMULATORS THAT DO NOT NEED REPLACEMENT. 4 GIVEN THE LOW COST OF REALIZATION AND THE SIMPLE USE OF THE UTILITY MODEL IN THIS STIONE, IT CAN BE USED BOTH BY THE SMALL STEEL INDUSTRY OPERATOR AS WELL AS THE HOBBYIST.