JPH0570528U - Light-shielding surface for welding - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a welding light-shielding surface capable of removing an adverse effect of welding fumes without wearing a complicated gas mask. A light-shielding surface for welding according to the present invention is a light-shielding surface that is used for welding work and has a shape that covers the face of an operator. Along with the formation, a grip portion is provided so as to hang from below the light-shielding window, while a blower opening is formed at the lower opening position of the light-shielding surface body, an electric fan is attached to the blower opening, and a dry battery is attached to the grip portion. Alternatively, the rechargeable battery is housed and an operation switch is provided on the outer periphery, and the electric fan is operated by operating the operation switch, so that air can be exhausted from the inside of the light-shielding surface to the outside through the air outlet. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a light-shielding surface for welding, and more particularly to a light-shielding surface capable of removing the adverse effects of welding fumes during welding work.

[0002]

[Prior Art]

 Welding of steel frames and plates is a very important technique at the construction sites of structures and shipyards. Usually, at the time of welding work, as shown in FIG. 4, the worker 1 holds the welding torch 3 in one hand 2 and holds the grip portion 6 of the light-shielding surface 5 in the other hand 4 to make a face on the light-shielding surface 5. We are doing welding work while covering a little while looking down.

In this case, fumes (smoke of solid fine particles) 7 are generated from the molten pool, but generally a work space is very large at a construction site or a construction site, and an appropriate dust collecting facility should be installed there. Since it is difficult, the generated welding fumes may be sucked into the body through the mouth and nose and stay there, which may have various adverse effects on the human body. Therefore, conventionally, a method has been adopted in which a worker wears a gas mask to prevent the welding fumes from being inhaled through the mouth or nose and to maintain the health of the worker.

[0004]

[Problems to be solved by the device]

 However, the gas mask has a problem that it is difficult to wear because it is troublesome for welding work and causes the operator to feel suffocating. In view of this problem, the present invention aims to eliminate the adverse effects of the welding fumes without wearing a complicated gas mask.

[0005]

[Means for Solving the Problems]

 As a result of earnest research on the method of removing the adverse effect of welding fumes without wearing a complicated gas mask, the inventor of the present invention always uses a light-shielding surface during welding work, but a function to prevent welding fumes on such a light-shielding surface. The present invention has been completed, paying attention to the fact that wearing a gas mask eliminates the need for wearing a conventional gas mask. That is, the light-shielding surface for welding according to the present invention is "a light-shielding surface that is used for welding work and has a shape that covers the face of an operator, and a light-shielding window that can be seen through both eyes is provided in the center of the main body of the light-shielding surface. The holding part is formed so as to hang down from below the light-shielding window, while a blower port is formed at the lower opening position of the light-shielding surface main body, and an electric fan is attached to the blower port. A dry battery or a rechargeable battery is housed in the battery, and an operation switch is provided on the outer periphery.The electric fan is operated by operating the operation switch, and air can be exhausted from the inside of the light-shielding surface to the outside through the air outlet. It was done "is the gist.

[0006]

[Action]

 In the present invention, the power supply may occupy almost half of the weight of the main body, but a dry battery or a rechargeable battery is built in the grip of the light-shielding surface main body, and an electric switch is provided by operating a switch provided in the grip. Since it is configured to energize the fan, it can be carried freely and does not impair workability. Furthermore, during welding work, when fumes are generated from the welding area and rise to the vicinity of the worker's face, they are blown away from the light shield surface by the blow of the electric fan, and even if welding fumes enter the light shield surface. However, as a result of the rotation of the electric fan, the air is exhausted from the air outlet to the outside of the light shielding surface, so even if the worker bends down and does the welding work, the welding fumes will not be sucked in through the mouth or nose.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 3 show a light shielding surface for welding according to an embodiment of the present invention. In the figure, reference numeral 10 denotes a light-shielding surface, and the light-shielding surface main body 20 has a face plate portion 21 curved in an arc shape, and a head plate portion 22 and a jaw plate portion 23 made of the same material are superposed on upper and lower edges thereof. And is connected by a rivet 24 to cover the operator's face.

A window 25 is opened at a position corresponding to both eyes in the central portion of the light-shielding surface body 20, a transparent light-shielding glass 31 is fixed to the window 25 by a mounting bracket 30, and a lower portion of the light-shielding surface body 20 is fixed. A grip bar (grip) 40 is provided on the front surface so as to hang from below the window 25, and is attached by a mounting bracket 41. Further, a blast plate 26 of the light-shielding surface main body 20 is formed with a blower port 26 at a position corresponding to the mouth of the operator, and an electric fan 50 is fixed to the blower port 26. Further, the grip bar 40 has a built-in rechargeable battery 42, and both electrodes of the built-in battery 42 are connected to the electric fan 50 by wiring 51. A switch 52 is provided in the middle of the wiring 51, and the switch 52 Is attached to the gripping rod 40, thus forming an energizing circuit for the electric fan 50.

Next, the function and effect will be described. When performing a welding operation, hold the welding torch in one hand and hold the gripping rod 40 of the light shielding surface 10 in the other hand, and then turn on the switch 52 of the gripping rod 40 to turn on the light shielding surface 10 as in the conventional case. While covering the face and looking down a little, the welding torch is brought close to the portion to be welded while observing the portion to be welded through the light-shielding glass 32.

At that time, harmful welding fumes are generated from the welded portion and rise toward the operator's face. However, when the welding fumes come close to the light shielding surface 10, the electric fan 50 blows air to the light shielding surface 10. The welding fumes rarely enter the light-shielding surface 10 due to the fact that it is blown away from the light-shielding surface 10 and covers the face of the light-shielding surface 10. Even if the welding fumes enter the light-shielding surface 10, the electric fan 50 discharges the welding fumes from the air outlet 26 to the outside of the light-shielding surface 10, so that the worker sucks the welding fumes into the body through the mouth or nose. Can be reliably prevented.

Moreover, since the welding fumes are prevented from being sucked in by using the light-shielding surface 10, the conventional gas mask is not required, and the troublesomeness of wearing the gas mask can be eliminated, and the worker can be eliminated. Can be prevented from feeling stuffy, and comfortable welding workability can be secured. Furthermore, since the rechargeable battery 42 is used as the power source of the electric fan 50, the battery in the grip rod 40 can be repeatedly charged and used after the welding operation is completed, which is economical. Further, since the heavy battery 42 is housed in the grip rod 40, the balance of the light shield surface 10 is not impaired, and the light shield surface 10 can be freely manipulated while holding the grip rod 40. There is no need to pull the power line around on site and welding workability is also good.

[0012]

[Effect of the device]

 As described above, according to the welding light-shielding surface of the present invention, the light-shielding surface is provided with an electric fan and a power source which is a heavy object by using the light-shielding surface configuration, and the light-shielding surface is protected without impairing the welding workability. The welding fumes around the surface are blown away to the outside and the welding fumes that have entered the light-shielding surface are removed to the outside by an electric fan, so the adverse effects of welding fumes can be ensured without wearing a complicated gas mask. There is an effect that can be removed.

[Brief description of drawings]

FIG. 1 is a perspective view of a light shielding surface for welding according to an embodiment of the present invention as viewed from below.

FIG. 2 is a front view showing the light shielding surface for welding.

FIG. 3 is a rear view showing the light shielding surface for welding.

FIG. 4 is a diagram for explaining welding work.

[Explanation of symbols]

 10 Light-shielding Surface 20 Light-shielding Surface Main Body 25 Window 31 Transparent Light-shielding Glass 40 Gripping Bar (Gripping Part) 26 Blower 50 Electric Fan 52 Switch

Claims (1)

[Scope of utility model registration request] 1. A light-shielding surface which is used for welding work and which covers the face of an operator, wherein a light-shielding window is formed in the central portion of the main body of the light-shielding surface so that the light-shielding window can be seen through both eyes. While a grip portion is provided so as to hang down from below, a blower opening is formed at the lower opening position of the light shielding surface body, an electric fan is attached to the blower opening, and a dry battery or a rechargeable battery is attached to the grip portion. An operation switch is provided on the outer peripheral portion while being housed, and the electric fan is operated by operating the operation switch.
A light-shielding surface for welding, which is configured to be able to discharge air from the inside of the light-shielding surface to the outside through a blower opening.