Abstract: The present invention provides a method for determining arc discharge as well as failure of mechanical vibration and abnormal displacement in power equipment using acoustic energy feature. Here, acoustic energy feature is firstly introduced to realize real-time, online inspection of failure in power equipment, enabling qualitative determination of discharge as well as mechanical vibration and abnormal displacement, so as to improve early warning before damage. Two factors, in which one is early detection of discharge, and the other is early detection of mechanical vibration and abnormal displacement, are considered. When abnormality of any one of these factors is emerged, it is demonstrated that hidden trouble is presented. Here, acoustic energy feature is used to perform real-time, online monitoring.

Abstract: A collapsible eyeglass structure includes a frame bilaterally provided with two temples. The frame has two ends, each having an inner side formed with a through hole. Each through hole has an entrance end with a beveled rim and an opposite end connected to an inwardly expanding receiving space. Each receiving space has a predetermined shape and an upper wall formed with plural teeth. Each temple has a pivotal connecting portion outwardly extended with a post. Each post has a convex tip and is notched so as to be pushed resiliently into the corresponding through hole of the frame. Each post further has an upper periphery formed with a tooth. When the posts are pushed into the receiving spaces in the frame respectively, the tooth of each post meshes with the corresponding teeth in the corresponding receiving space to allow angular adjustment or downward collapse of the temples.

Abstract: A structure for securing a secondary goggle frame is provided. The structure is characterized by a connector configured for connecting the secondary goggle frame to a primary goggle frame. The primary goggle frame has a central nose support whose inner edge is formed with plural ribs for engaging with plural recesses on a side of the connector. The secondary goggle frame has an engaging section which can be inserted in a groove of the connector such that a fastening portion of the secondary goggle frame is fastened with a fastening hole of the connector. The components of the structure are simple and can be easily assembled to allow the secondary goggle frame fitted with vision correction lenses to be securely and stably positioned in the primary goggle frame.

Abstract: A protective goggle assembly has a goggle frame having a rigid goggle body formed on a front side. The goggle body has recesses formed on two sides of a lower end so that a resilient face engaging portion is integrally formed with a rear side of the goggle frame. The resilient face engaging portion includes edges on two sides of a lower end, which edges are formed with a curved shape based on a human face contour. When the goggle frame and the lens are assembled with a strap buckled to the two sides for use and with the resilient face engaging portion on the rear side of the goggle frame in contact with a user's face and cheekbones, the recesses formed on the two sides of the lower end of the rigid goggle body provide the resilient face engaging portion with a larger space for flexible adjustment.

Abstract: Protective goggles have an integrally formed lens, a frame and a strap. The lens has an opening formed on an upper side for engaging with an engaging portion on an upper side of a frame with a soft protective pad and has a protrusion extending upwardly from a middle section of a lower side to be inserted into a hole adjacent to a concave section formed on a lower side of the frame. More than one rib is provided on an upper side of the frame for fitting with the lens and for stably propping the lens. A through hole is provided on each end of the frame and has raised portions projected therearound for passing through a through hole of the lens. A tenon is formed adjacent each through hole of the fence for passing through an aperture of the lens. The lens and the frame are coupled by buckles combined with both ends of the strap.

Abstract: A weighted traffic cone assembly for being used in occasion of road/site construction includes a base and a conical body. The base has an inner periphery formed with a supporting section having slanted, upper and lower surfaces. The supporting section has a side that is adjacent to an outer periphery of the base and formed with a plurality of spaced holes, wherein the outer periphery has a lower surface concavely formed with an annular groove. After the base is place in a mold for forming the conical body, a pliable material is introduced into the mold to wrap the supporting section of the base, fill up each hole of the supporting section, and thus form the pliable yet tough conical body having a predetermined shape. The conical body has a lower end formed with upper and lower peripheries and plural connecting portions distributed therebetween for securely retaining the base.

Abstract: A protective goggle assembly is disclosed. Therein, a frame is provided with plural vent holes on an upper section and two lateral sides thereof More than one abutting portion is formed on an upper edge of the frame for abutting against an inner surface of a periphery of a lens when an engaging portion in a middle section of an upper end of the frame is engaged in a corresponding recess on the lens, thereby spacing the vent holes from the periphery of the lens. A buckle extended with a buckling section is bilaterally provided with protuberances which, after the buckle is assembled with the lens, must cross over corresponding upper and lower juts on the lens for re-entering two concave portions, so that the buckle can be disengaged. Thus, the lens is prevented from coming off the frame due to unintentional operation of the buckle.

Abstract: A structure for adjusting inside circumference of a helmet is implemented as a strap assembly coupled to a rear side of a safety helmet or bicycle helmet and includes a casing and a cover fitted therein. The cover is sequentially connected with a transmission gear, a resilient element, a positioning gear and a knob. By pressing the knob, the positioning gear is disengaged from toothed portions on an inner periphery of the cover, thereby allowing the knob to rotate an end of the transmission gear. Consequently, a first driving portion of the transmission gear drives two straps inserted in the casing to move toward or away from each other. The knob is released after a relative position of the straps is adjusted. The resilient element returns the positioning gear into engagement with the toothed portions on the inner periphery of the cover.

Abstract: A fixing structure for industrial spectacles and a helmet is provided. The industrial spectacles are bilaterally formed with shield portions, each having a hole passing therethrough. Two resilient bands each have a first end formed with a protruding portion for being inserted into the hole of a corresponding one of the shield portions; and a second end for being windingly fastened with a corresponding one of two fasteners, each having at least one through hole and a notch corresponding in shape to a brim extending bilaterally from the helmet. The industrial spectacles bilaterally coupled with the resilient bands are fastened to the helmet by engaging the notch of each of the fasteners windingly fastened to the respective resilient bands with the brim. The industrial spectacles can be pulled down relative to the helmet so as to be used, and pushed up relative to the helmet when not in use.

Abstract: An improved structure of a nose pad for eyeglasses is provided. The nose pad, installed at a middle section of an eyeglass frame, has an upper section extended with an engaging portion inwardly formed with a recess for snap-fitting on a protuberance formed on a bridge at the middle section of the eyeglass frame. The engaging portion is outwardly formed with a protruding area for inserting into a hole of a fastener so that a hook portion extending inwardly from an upper section of the fastener can engage with an inner surface of the bridge while two jutting portions extending from a lower section of the fastener can insert into grooves of the nose pad. Additionally, two pad portions of the nose pad can couple with projections on an inner surface of the eyeglass frame. Thus, the nose pad can be positioned properly with respect to the eyeglass frame.

Abstract: Protective goggles have an integrally formed lens, a frame and a strap. The lens has an opening formed on an upper side for engaging with an engaging portion on an upper side of a frame with a soft protective pad, and a protrusion extending upwardly from a middle section of a lower side to be inserted into a hole adjacent to a concave section formed on a lower side of the frame. More than one rib provided on an upper side of the frame for fitting with the lens and for stably propping the lens. A through hole is provided on each end of the frame and has raised portions projected around for passing through a through hole of the lens and a tenon formed adjacently for passing through an aperture of the lens. The lens and the frame are coupled by buckles combined with both end of the strap.

Abstract: A protective goggle assembly has a goggle frame having a rigid goggle body formed on a front side. The goggle body has recesses formed on two sides of a lower end so that a resilient face engaging portion is integrally formed with a rear side of the goggle frame. The resilient face engaging portion includes edges on two sides of a lower end, which edges are formed with a curved shape based on a human face contour. When the goggle frame and the lens are assembled with a strap buckled to the two sides for use, and the resilient face engaging portion on the rear side of the goggle frame is in contact with a user's face and cheekbones, the recesses formed on the two sides of the lower end of the rigid goggle body provide the resilient face engaging portion with a larger space for flexible adjustment.

Abstract: A mechanism includes two units for securing a transparent eye protector to a helmet having a recess at either side. Each unit comprises a bracket formed at one end of a frame of the eye protector. The bracket includes, at a free end thereof, an inner raised, round surface, radial first ridges on the raised, round surface, an outer recessed, round surface, and a central hole through the round surfaces. Separate snapping members include two lower, resilient latched pieces inserted into each recess for releasably securing to the helmet, radial second ridges at an upper, outer surface, and a central hole through the upper, outer surface. Bolts are driven through the central holes for fastening the snapping members and the brackets together. Pivoting of the ridges of the bracket about the ridges of the snapping member is done by pulling the eye protector up or down about the helmet.

Abstract: A mechanism includes two units for securing a transparent eye protector to a helmet having a recess at either side. Each unit comprises a bracket formed at one end of a frame of the eye protector. The bracket includes, at a free end thereof, an inner raised, round surface, radial first ridges on the raised, round surface, an outer recessed, round surface, and a central hole through the round surfaces. Separate snapping members include two lower, resilient latched pieces inserted into each recess for releasably securing to the helmet, radial second ridges at an upper, outer surface, and a central hole through the upper, outer surface. Bolts are driven through the central holes for fastening the snapping members and the brackets together. Pivoting of the ridges of the bracket about the ridges of the snapping member is done by pulling the eye protector up or down about the helmet.