Abstract: Disclosed is a method for controlling a cartridge of a welding helmet having a function to display a welding operation time, which can protect the welder's face from intense light generated during a welding or cutting operation and also, enable automated light transmittance adjustment and operation time setting on a per operation basis, enabling a welding operation to be more efficiently performed. In the method including welding operation, cutting operation, grinding operation and X-mode operation steps, which are automatically performed in sequence according to preset conditions and a light transmittance and operation time of a liquid crystal screen of the cartridge, a control unit calculates an operation time of the liquid crystal screen indicating how long the liquid crystal screen is kept dark, and the calculated operation time is stored in a memory unit so as to be displayed on a display unit in a life mode step.

Abstract: Disclosed is a welding helmet including an anti-blinding device to selectively control a welding operation and a grinding operation, and more particularly, a welding helmet, which stably protects the welder's eyes and enables easy switching of the anti-blinding device from a welding operation mode to a grinding operation mode or vice versa without taking off the welding helmet. In addition to the anti-blinding device to protect the welder's eyes from light emitted from a welding or cutting torch during a welding or grinding operation, a switch is provided at an outer surface of the welding helmet to allow a welder to conveniently select a welding operation mode or a grinding operation mode without taking off the welding helmet.

Abstract: Disclosed is a welding mask that enables a user to easily and conveniently perform manipulation thereof, thereby protecting the user's eyes and face. The welding mask includes a welding face to cover the user's face, the welding face having a transparent window, a wearing band to be worn on the user's hair, the wearing band being coupled to the welding face such that the welding face is rotated upward/downward, a liquid crystal display (LCD) shielding goggle including an LCD panel mounted at the rear of the transparent window of the welding face to protect the user's eyes from strong injurious light rays generated during welding, and a manipulation unit disposed spaced apart from the lower end of the LCD shielding goggle, the manipulation unit serving to detect injurious light rays generated during welding and operate the LCD panel accordingly.

Abstract: Disclosed is a functional display type anti-blinding device having an anti-blinding plate for indication and control of a screen display condition and variation in light transmittance. The anti-blinding plate includes a filter to selectively filter light, a polarizer to polarize the filtered light, a shutter LCD having a variable light transmittance based on control of a light transmission control unit, a transparent dot-matrix LCD to indicate the screen display condition based on control of a display control unit, and a glass protector at the rear of the transparent dot-matrix LCD. The shutter LCD flickers several times to indicate an initial state and is turned off. The transparent dot-matrix LCD is turned on upon turn-off of the shutter LCD to indicate the screen display condition. The shutter LCD is turned on upon turn-off of the transparent dot-matrix LCD to transmit light based on preset light transmittance.

Abstract: Disclosed is a digital type anti-glare device capable of conveniently performing input, operation and adjustment, and a method of controlling the same. The digital type anti-glare device includes a touch sensor input unit recognizing a shade degree and a grind mode level by direct selective operation or adjustment of a user as a digital contact signal and inputting the shade degree and the grind model level to the control unit, and an encoder switch input unit recognizing a sensitivity level and an opening delay level by the selective operation or adjustment of the user and inputting the sensitivity level and the opening delay level to the control unit. Accordingly, it is possible to prevent operation failure due to switch contact, dust or humidity or the like by a touch sensor and encoder input and to facilitate input, operation and adjustment even in a state in which an operator wears gloves.

Abstract: Disclosed is a face protector (100) configured to be rotated upward and downward while being coupled to coupling pieces (12) provided at opposite sides of a helmet (10), so as to protect the wearer's face. The face protector includes a body (120) for protecting the wearer's face, a pair of coupling units (140) configured to be fixedly coupled to both the coupling pieces of the safety helmet, respectively, and a plurality of links (160a,160b) used to connect the coupling units to opposite rear ends of the body, respectively, so as to restrict rotation of the body. The face protector has the effects of preventing the wearer's head from colliding with any object above the head in a narrow space, maximizing wearing convenience of the protector with a low wind-resistance and negligible weight-deflection, and guaranteeing easy and convenient use of the protector by preventing the protector from being unintentionally rotated downward by a weight thereof.

Abstract: Disclosed herein is a face protector having a protective shade that enables the worker to perform welding as well as grinding while wearing the multi-function face protector and that can be used with safety glasses, goggles and a mask. The multi-function face protector includes a head band, a forehead cover, and a face shield. The face shield comprises resilient hooks formed at its upper central portion, and engaging portions formed at its opposite ends respectively. The forehead cover comprises shield couplings formed at the central portion of its inner surface, and projections formed at the opposite ends of its inner surface respectively. The resilient hooks of the face shield are engaged with the respective shield couplings of the forehead cover.

Abstract: A welding light detection and anti-glare eye protection apparatus, which shields welding light generated in welding or cutting environments to safely protect eyes of a worker from the welding light, and a method for controlling the same are provided. When the apparatus is powered on, it is determined, based on a reference value, whether or not a specific time has passed without detecting welding light. If the specific time has passed without detecting welding light, a power saving mode is performed. If welding light is detected while the power saving mode is performed, normal power is supplied and light transmittance is controlled. When the power saving mode is performed, the reference value is reset so that photosensitivity is reduced below a specific value. This method saves energy while preventing the apparatus from operating abnormally. Thus, it is possible to drive the anti-glare eye protection plate most efficiently according to ambient environments.

Abstract: Disclosed is an air supplying device for a welding mask, capable of supplying clean air into a face shield of the welding mask. According to an embodiment of the present invention, more specifically, the air supplying device comprises a housing connected to the face shield, a connection member connected to a supply port of the housing, a first opening/closing member connected to a first outlet part of the housing, and a second opening/closing member connected to a second outlet of the housing. Therefore, the air supplying device is capable of conveniently adjusting direction of a bellows hose connected to supply the air and also adjusting quantity and direction of the air being supplied.

Abstract: Disclosed is a welding helmet with a protection cover for a cartridge, being manufactured in various forms and capable of covering a cartridge of the welding helmet and thereby protecting the cartridge from welding heat and preventing melting of the cartridge. According to the present invention, the welding helmet comprising a helmet body covering an operator's face, an opening formed on a front of the helmet body, and a cartridge connected with the opening and equipped with an LCD panel which intercepts light emanating from a welding operation to protect the operator's eyes, further comprises a heat transmission interception unit formed on a front of the cartridge of the welding helmet to prevent surface deformation caused by welding heat.

Abstract: An anti-glare eye protection apparatus includes an anti-glare eye protection plate, an optical detector, an electromagnetic wave sensor, an electromagnetic wave detector, a user interface, a main controller, and a light transmittance controller. The electromagnetic wave sensor senses an electromagnetic wave generated by a welding or cutting torch using at least two coils. The electromagnetic wave detector compares a signal received through the electromagnetic wave sensor with a reference value. The user interface includes a display for selecting or displaying one of the optical and electromagnetic wave detectors. The main controller applies an electromagnetic wave detector activation signal to the electromagnetic wave detector as the optical detector starts optical detection and monitors changes in a received electromagnetic wave signal based on output of the electromagnetic wave detector.

Abstract: A dazzle prevention device having an electromagnetic wave detection function is disclosed. The device includes an optical detection means, an electromagnetic wave sensor means, the electromagnetic wave detection means, a control means, and a light transmission control means. The optical detection means detects light generated from the welding or cutting torch. The electromagnetic wave sensor means detects an electromagnetic wave. The electromagnetic wave detection means compares a signal, which is input through the electromagnetic wave sensor means and resonated, with a variably set reference value. The control means applies the electromagnetic wave detection mean drive signal to the electromagnetic wave detection means and monitors the variation of an electromagnetic signal using the output of the electromagnetic wave detection means. The light transmission control means controls the variation of light transmittance of the dazzle prevention plate in response to an output signal from the control means.

Abstract: A multifunctional protection rack for a safety helmet having interchangeability, which is connected to the safety helmet to install a welding mask for performing a welding operation, a shade for preventing a direct ray of light from passing therethrough, or a protective shield for preventing foreign substances from being introduced thereinto.

Abstract: A dazzle prevention device having an electromagnetic wave detection function is disclosed. The device includes an optical detection means, an electromagnetic wave sensor means, the electromagnetic wave detection means, a control means, and a light transmission control means. The optical detection means detects light generated from the welding or cutting torch. The electromagnetic wave sensor means detects an electromagnetic wave. The electromagnetic wave detection means compares a signal, which is input through the electromagnetic wave sensor means and resonated, with a variably set reference value. The control means applies the electromagnetic wave detection mean drive signal to the electromagnetic wave detection means and monitors the variation of an electromagnetic signal using the output of the electromagnetic wave detection means. The light transmission control means controls the variation of light transmittance of the dazzle prevention plate in response to an output signal from the control means.

Abstract: A front surface opened welding mask, in which an LCD shielding screen is simply attached to and detached from a welding plane and the LCD shielding screen is safely connected to the welding plane. The front surface opened welding mask includes a connection opening formed through the front surface of the welding plane, a front cover having a transparent window formed through the central portion thereof and attached to and detached from the connection opening, and buttons for connecting the front cover to the connection opening. The front cover having the transparent window is easily attached to and detached from the connection opening of the welding plane so that the LCD shielding screen is simply attached to and detached from the welding plane and a receiving portion fixes the LCD shielding screen without movement so that the LCD shielding screen is safely connected to the welding plane.

Abstract: Disclosed herein is a welding helmet having a cartridge coupling structure. The welding helmet comprises a helmet body configured to cover and protect the welder's head, an opening being formed at a front surface of the helmet body, a protective cover provided along a periphery thereof with a packing such as rubber, the packing having a protruding wing portion and serving to prevent harmful gas and foreign substances from reaching the inside surface of the protective cover, a cartridge coupled to the opening by interposing the protective cover and adapted to intercept intense light generated upon welding so as to protect the welder's eyes, and coupling elements to detachably couple the cartridge to the helmet body.