Abstract: A process of manufacturing the main body of a bike helmet includes the following steps: (I.) coating with a base layer resin: that is, uniformly coating the entire shock absorbing liner with a base layer resin; (II.) coating with a protective layer resin: uniformly coating the base layer resin with a protective layer resin to form a shell; (III.) transferring pattern: transferring the pattern to print on the shell; and (IV.) clear coating: spraying clear coating on the pattern. By the aforesaid steps of the process, the shock absorbing liner and the shell are able to join tightly, which solidifies the helmet for better durability, to prolong the years of use, to substantially lower the production cost, and to boost the yield rate.

Abstract: A safety helmet visor setting mechanism includes a shell having an indent at each side and a long opening behind the indent at one side. An anchored unit fits in the long opening and has two grooves. A hold plate has two push chunks placed in the two grooves respectively. A link bar, fixed in the anchored unit and jostled with the hold plate, can be moved by the drive of the push chunk. A cover, capping the anchored unit, jostles with the link bar and the hold plate for a lockup. A first visor joint, positioned inside the shell in one side, has a bottom end pinned joined with the top end of the link bar, and has a top end provided with a cave. A second visor joint, positioned inside the shell in the other side has a springy slice forming an accommodation space with the shell. A visor has a clasp slice at each side penetrating the caves and the accommodation spaces of both the first visor joint and the second visor joint for assembly.

Abstract: A safety helmet visor setting mechanism includes a shell having a shaft base inside at each side, with one side provided with a shell base provided with an internal lodging space and with an external wall. A control mechanism, located at the right side of the shell, has a knob for turning and driving an actuating element that again links a handle to rotate a displacement. The knob and the actuating element are provided with a fixed dish in between and provided with corresponding oblique chunks and sliders in between. The fixed dish and the handle are provided with corresponding clasp segments and lumps. A joint mechanism, set up on the shaft base of both sides of the shell, includes a first visor joint and a second visor joint each provided with hollows. The first visor joint and the handle of the control mechanism are linked by a rod. A visor has a clasp slice at each of both sides for insertion into the hollow of the visor joint.

Abstract: The present invention is to provide a multifunctional safety helmet which comprises: a shell, having a concavity at each side that forms a protection lump at its front; a chin shield, positioned in the front of the shell where each of the top sides has an ear cover, where the chin shield is pivoted on both sides of the shell with a fixing by a lift adjusting device; a clasp device, located in the interior of the front bottom of the chin shield and the interior of the protection lump of the shell, comprising: a button, linked by a spring for automatic bounce back; a link pole, with one end connecting to the end of the button; a slide, embedded in the seat, and connected to the other end of the link pole; a clasp chunk, positioned under the slide; and a movable clasp body, located inside the protection lump of the shell, and fastened by a cover, where an opening is devised for accommodating the slide, and an elastic element is placed between the clasp body and the cover, while the clasp body further comprises a

Abstract: The present invention is to provide a multifunctional safety helmet which comprises: a shell, having a concavity at each side that forms a protection lump at its front; a chin shield, positioned in the front of the shell where each of the top sides has an ear cover, where the chin shield is pivoted on both sides of the shell with a fixing by a lift adjusting device; a clasp device, located in the interior of the front bottom of the chin shield and the interior of the protection lump of the shell, comprising: a button, linked by a spring for automatic bounce back; a link pole, with one end connecting to the end of the button; a slide, embedded in the seat, and connected to the other end of the link pole; a clasp chunk, positioned under the slide; and a movable clasp body, located inside the protection lump of the shell, and fastened by a cover, where an opening is devised for accommodating the slide, and an elastic element is placed between the clasp body and the cover, while the clasp body further comprises a

Abstract: A fixing device for the windshield of a safety helmet includes a windshield having its left and right end provided with a projection with projecting wings, a projecting rib and a slide block. A helmet shell is fixed with a base plate respectively at the opposite ends of its window. Each base plate is provided with a corrugated edge near the annular recess base, and a slide groove for receiving the slide block with a slidable lip block in its intermediate portion of a groove. In assembling, the windshield is slightly moved for a little angle, with projecting wings of the projection fitting in the two notches of the helmet shell and fixed by the lip blocks to keep the windshield immovable in place, convenient to assemble and use the windshield with the helmet shell.

Abstract: The invention provides device for affixing a lens of a safety helmet. A helmet housing has a base located on each of both sides. The base has a C-like protruding ring. The protruding ring has an upward opening gap, wherein an inner side surface has a C-like groove. A protruding body is located under the protruding ring, wherein a bottom of the protruding body has a concave clicking opening. A side front portion of the protruding ring has clicking protruding body having a top with a slant surface. A windshield lens of safety helmet has a base plate at each of both sides, which base plate can be affixed onto the base of the helmet housing. An inner side of the base has two L-like clicking protruding bodies, which can be inserted to the C-like groove. A clicking gear is formed on the base plate at a bottom rim corresponding to the protruding body of the base.